Enviar búsqueda
Cargar
20320140505010
•
0 recomendaciones
•
185 vistas
IAEME Publication
Seguir
Tecnología
Empresariales
Denunciar
Compartir
Denunciar
Compartir
1 de 8
Descargar ahora
Descargar para leer sin conexión
Recomendados
20320140507009
20320140507009
IAEME Publication
Seismic performance evaluation of rc building connected with and without x br...
Seismic performance evaluation of rc building connected with and without x br...
eSAT Journals
SEISMIC RESPONSE OF UNSYMMETRIC BUILDING WITH OPTIMALLY PLACED FRICTION DAMPERS
SEISMIC RESPONSE OF UNSYMMETRIC BUILDING WITH OPTIMALLY PLACED FRICTION DAMPERS
IAEME Publication
Performance of slope under seismic conditions
Performance of slope under seismic conditions
eSAT Publishing House
Ijciet 08 01_073
Ijciet 08 01_073
Tushar Dey
Is 1893-part-4-2015
Is 1893-part-4-2015
shankar kumar
EXPERIMENTAL STUDY ON BEHAVIOUR OF FLYASH BASED GEOPOLYMER CONCRETE
EXPERIMENTAL STUDY ON BEHAVIOUR OF FLYASH BASED GEOPOLYMER CONCRETE
IAEME Publication
Comparison of percentage steel and concrete quantities of a r.c building in d...
Comparison of percentage steel and concrete quantities of a r.c building in d...
eSAT Journals
Recomendados
20320140507009
20320140507009
IAEME Publication
Seismic performance evaluation of rc building connected with and without x br...
Seismic performance evaluation of rc building connected with and without x br...
eSAT Journals
SEISMIC RESPONSE OF UNSYMMETRIC BUILDING WITH OPTIMALLY PLACED FRICTION DAMPERS
SEISMIC RESPONSE OF UNSYMMETRIC BUILDING WITH OPTIMALLY PLACED FRICTION DAMPERS
IAEME Publication
Performance of slope under seismic conditions
Performance of slope under seismic conditions
eSAT Publishing House
Ijciet 08 01_073
Ijciet 08 01_073
Tushar Dey
Is 1893-part-4-2015
Is 1893-part-4-2015
shankar kumar
EXPERIMENTAL STUDY ON BEHAVIOUR OF FLYASH BASED GEOPOLYMER CONCRETE
EXPERIMENTAL STUDY ON BEHAVIOUR OF FLYASH BASED GEOPOLYMER CONCRETE
IAEME Publication
Comparison of percentage steel and concrete quantities of a r.c building in d...
Comparison of percentage steel and concrete quantities of a r.c building in d...
eSAT Journals
Comparison of percentage steel and concrete
Comparison of percentage steel and concrete
eSAT Publishing House
IRJET- Seismic Analysis of Building Resting on Sloping Ground with Soil S...
IRJET- Seismic Analysis of Building Resting on Sloping Ground with Soil S...
IRJET Journal
IRJET- Dynamic Analysis of RCC Building Considering Soil Structure Interaction
IRJET- Dynamic Analysis of RCC Building Considering Soil Structure Interaction
IRJET Journal
D012211830
D012211830
IOSR Journals
IRJET- Seismic Performance of RC Structures Considering Foundation Flexib...
IRJET- Seismic Performance of RC Structures Considering Foundation Flexib...
IRJET Journal
IRJET-Soil-Structure Effect of Multideck R.C.C. Structures
IRJET-Soil-Structure Effect of Multideck R.C.C. Structures
IRJET Journal
Seismic evaluation of masonry building a case study
Seismic evaluation of masonry building a case study
IAEME Publication
IRJET- Evaluation of R.C. Multi-Storey Building Response under the Effect of ...
IRJET- Evaluation of R.C. Multi-Storey Building Response under the Effect of ...
IRJET Journal
Earthquake response of modified folded cantilever shear structurewith fix
Earthquake response of modified folded cantilever shear structurewith fix
IAEME Publication
Study of Earthquake Forces By Changing the Location of Lift Core
Study of Earthquake Forces By Changing the Location of Lift Core
IJERA Editor
The effect of soil improvement on foundation super structure design
The effect of soil improvement on foundation super structure design
IAEME Publication
Soil structure interaction effect on dynamic behavior of 3 d building frames ...
Soil structure interaction effect on dynamic behavior of 3 d building frames ...
eSAT Journals
Ijciet 06 08_007
Ijciet 06 08_007
IAEME Publication
SEISMIC PROTECTION OF RC FRAMES USING FRICTION DAMPERS
SEISMIC PROTECTION OF RC FRAMES USING FRICTION DAMPERS
IAEME Publication
Soil Structure Interaction Effect on the Dynamic Analysis of Wind Turbine Tower
Soil Structure Interaction Effect on the Dynamic Analysis of Wind Turbine Tower
IRJET Journal
Usage of N2 Method for the Performance Evaluation of Plan Asymmetric Structures
Usage of N2 Method for the Performance Evaluation of Plan Asymmetric Structures
IRJET Journal
IRJET- Effect of Different Soil Conditions on Seismic Response of Multi-Store...
IRJET- Effect of Different Soil Conditions on Seismic Response of Multi-Store...
IRJET Journal
Effect of Orientation on Response Spectrum Analysis of Plan Irregular Building
Effect of Orientation on Response Spectrum Analysis of Plan Irregular Building
IRJET Journal
30120140506001
30120140506001
IAEME Publication
20320140505012
20320140505012
IAEME Publication
30120140505021
30120140505021
IAEME Publication
Community services training and development a panacea for employment generati...
Community services training and development a panacea for employment generati...
IAEME Publication
Más contenido relacionado
La actualidad más candente
Comparison of percentage steel and concrete
Comparison of percentage steel and concrete
eSAT Publishing House
IRJET- Seismic Analysis of Building Resting on Sloping Ground with Soil S...
IRJET- Seismic Analysis of Building Resting on Sloping Ground with Soil S...
IRJET Journal
IRJET- Dynamic Analysis of RCC Building Considering Soil Structure Interaction
IRJET- Dynamic Analysis of RCC Building Considering Soil Structure Interaction
IRJET Journal
D012211830
D012211830
IOSR Journals
IRJET- Seismic Performance of RC Structures Considering Foundation Flexib...
IRJET- Seismic Performance of RC Structures Considering Foundation Flexib...
IRJET Journal
IRJET-Soil-Structure Effect of Multideck R.C.C. Structures
IRJET-Soil-Structure Effect of Multideck R.C.C. Structures
IRJET Journal
Seismic evaluation of masonry building a case study
Seismic evaluation of masonry building a case study
IAEME Publication
IRJET- Evaluation of R.C. Multi-Storey Building Response under the Effect of ...
IRJET- Evaluation of R.C. Multi-Storey Building Response under the Effect of ...
IRJET Journal
Earthquake response of modified folded cantilever shear structurewith fix
Earthquake response of modified folded cantilever shear structurewith fix
IAEME Publication
Study of Earthquake Forces By Changing the Location of Lift Core
Study of Earthquake Forces By Changing the Location of Lift Core
IJERA Editor
The effect of soil improvement on foundation super structure design
The effect of soil improvement on foundation super structure design
IAEME Publication
Soil structure interaction effect on dynamic behavior of 3 d building frames ...
Soil structure interaction effect on dynamic behavior of 3 d building frames ...
eSAT Journals
Ijciet 06 08_007
Ijciet 06 08_007
IAEME Publication
SEISMIC PROTECTION OF RC FRAMES USING FRICTION DAMPERS
SEISMIC PROTECTION OF RC FRAMES USING FRICTION DAMPERS
IAEME Publication
Soil Structure Interaction Effect on the Dynamic Analysis of Wind Turbine Tower
Soil Structure Interaction Effect on the Dynamic Analysis of Wind Turbine Tower
IRJET Journal
Usage of N2 Method for the Performance Evaluation of Plan Asymmetric Structures
Usage of N2 Method for the Performance Evaluation of Plan Asymmetric Structures
IRJET Journal
IRJET- Effect of Different Soil Conditions on Seismic Response of Multi-Store...
IRJET- Effect of Different Soil Conditions on Seismic Response of Multi-Store...
IRJET Journal
Effect of Orientation on Response Spectrum Analysis of Plan Irregular Building
Effect of Orientation on Response Spectrum Analysis of Plan Irregular Building
IRJET Journal
La actualidad más candente
(18)
Comparison of percentage steel and concrete
Comparison of percentage steel and concrete
IRJET- Seismic Analysis of Building Resting on Sloping Ground with Soil S...
IRJET- Seismic Analysis of Building Resting on Sloping Ground with Soil S...
IRJET- Dynamic Analysis of RCC Building Considering Soil Structure Interaction
IRJET- Dynamic Analysis of RCC Building Considering Soil Structure Interaction
D012211830
D012211830
IRJET- Seismic Performance of RC Structures Considering Foundation Flexib...
IRJET- Seismic Performance of RC Structures Considering Foundation Flexib...
IRJET-Soil-Structure Effect of Multideck R.C.C. Structures
IRJET-Soil-Structure Effect of Multideck R.C.C. Structures
Seismic evaluation of masonry building a case study
Seismic evaluation of masonry building a case study
IRJET- Evaluation of R.C. Multi-Storey Building Response under the Effect of ...
IRJET- Evaluation of R.C. Multi-Storey Building Response under the Effect of ...
Earthquake response of modified folded cantilever shear structurewith fix
Earthquake response of modified folded cantilever shear structurewith fix
Study of Earthquake Forces By Changing the Location of Lift Core
Study of Earthquake Forces By Changing the Location of Lift Core
The effect of soil improvement on foundation super structure design
The effect of soil improvement on foundation super structure design
Soil structure interaction effect on dynamic behavior of 3 d building frames ...
Soil structure interaction effect on dynamic behavior of 3 d building frames ...
Ijciet 06 08_007
Ijciet 06 08_007
SEISMIC PROTECTION OF RC FRAMES USING FRICTION DAMPERS
SEISMIC PROTECTION OF RC FRAMES USING FRICTION DAMPERS
Soil Structure Interaction Effect on the Dynamic Analysis of Wind Turbine Tower
Soil Structure Interaction Effect on the Dynamic Analysis of Wind Turbine Tower
Usage of N2 Method for the Performance Evaluation of Plan Asymmetric Structures
Usage of N2 Method for the Performance Evaluation of Plan Asymmetric Structures
IRJET- Effect of Different Soil Conditions on Seismic Response of Multi-Store...
IRJET- Effect of Different Soil Conditions on Seismic Response of Multi-Store...
Effect of Orientation on Response Spectrum Analysis of Plan Irregular Building
Effect of Orientation on Response Spectrum Analysis of Plan Irregular Building
Destacado
30120140506001
30120140506001
IAEME Publication
20320140505012
20320140505012
IAEME Publication
30120140505021
30120140505021
IAEME Publication
Community services training and development a panacea for employment generati...
Community services training and development a panacea for employment generati...
IAEME Publication
Experimental study of a alumina packaged 5 bit rf mems phase shifter in high ...
Experimental study of a alumina packaged 5 bit rf mems phase shifter in high ...
IAEME Publication
Wind lens energy recovery system
Wind lens energy recovery system
IAEME Publication
Dielectric constant study of polyaniline ni cofe2o3 composites
Dielectric constant study of polyaniline ni cofe2o3 composites
IAEME Publication
40120140505015
40120140505015
IAEME Publication
Performance analysis of ecg qrs complex detection using morphological operators
Performance analysis of ecg qrs complex detection using morphological operators
IAEME Publication
Destacado
(9)
30120140506001
30120140506001
20320140505012
20320140505012
30120140505021
30120140505021
Community services training and development a panacea for employment generati...
Community services training and development a panacea for employment generati...
Experimental study of a alumina packaged 5 bit rf mems phase shifter in high ...
Experimental study of a alumina packaged 5 bit rf mems phase shifter in high ...
Wind lens energy recovery system
Wind lens energy recovery system
Dielectric constant study of polyaniline ni cofe2o3 composites
Dielectric constant study of polyaniline ni cofe2o3 composites
40120140505015
40120140505015
Performance analysis of ecg qrs complex detection using morphological operators
Performance analysis of ecg qrs complex detection using morphological operators
Similar a 20320140505010
20320140507009
20320140507009
IAEME Publication
Q01222110120
Q01222110120
IOSR Journals
Effect of Soil Structure Interaction on Seismic Response of Multistorey Building
Effect of Soil Structure Interaction on Seismic Response of Multistorey Building
IRJET Journal
Soil structure interaction of RC building with different foundations and soil...
Soil structure interaction of RC building with different foundations and soil...
IRJET Journal
Impact of fault line on behaviour of flat slab under vertical motion of earth...
Impact of fault line on behaviour of flat slab under vertical motion of earth...
IRJET Journal
Ijciet 08 02_008
Ijciet 08 02_008
IAEME Publication
A review on: The influence of soil conditions on the seismic forces in RC bui...
A review on: The influence of soil conditions on the seismic forces in RC bui...
IJERA Editor
IRJET-Analysis and Seismic Response Reduction of Building using Base Isolatio...
IRJET-Analysis and Seismic Response Reduction of Building using Base Isolatio...
IRJET Journal
Effect of Soil Structure Interaction on Buildings with Stiffness Irregularity...
Effect of Soil Structure Interaction on Buildings with Stiffness Irregularity...
IRJET Journal
PERFORMANCE BASED ANALYSIS OF RC STRUCTURE WITH AND WITHOUT CONSIDERING SOIL ...
PERFORMANCE BASED ANALYSIS OF RC STRUCTURE WITH AND WITHOUT CONSIDERING SOIL ...
IRJET Journal
Numerical modeling of reinforced soil segmental wall under surcharge loading
Numerical modeling of reinforced soil segmental wall under surcharge loading
IAEME Publication
IRJET- Analysis of Irregular RCC Framed Structure for Fundamental Natural...
IRJET- Analysis of Irregular RCC Framed Structure for Fundamental Natural...
IRJET Journal
IRJET- Seismic Evaluation of Symmetric and Asymmetric Buildings by Pushover a...
IRJET- Seismic Evaluation of Symmetric and Asymmetric Buildings by Pushover a...
IRJET Journal
A Study on the Impact of Seismic Performance on RCC Frames
A Study on the Impact of Seismic Performance on RCC Frames
IRJET Journal
Basic concepts in indian standard eq design codes
Basic concepts in indian standard eq design codes
deua2004
Comparative Study of Commercial High-Rise Building with Flat Slab by Varying ...
Comparative Study of Commercial High-Rise Building with Flat Slab by Varying ...
IRJET Journal
A Building Frame Experimental Study Supported On Piles
A Building Frame Experimental Study Supported On Piles
IRJET Journal
Modal analysis of multistorey rectangular buildings with 1:2:2.5 plan ratios
Modal analysis of multistorey rectangular buildings with 1:2:2.5 plan ratios
IRJET Journal
Effect of foundation flexibility on dynamic behaviour of asymmetric building ...
Effect of foundation flexibility on dynamic behaviour of asymmetric building ...
eSAT Journals
1893 1
1893 1
Boopathi Yoganathan
Similar a 20320140505010
(20)
20320140507009
20320140507009
Q01222110120
Q01222110120
Effect of Soil Structure Interaction on Seismic Response of Multistorey Building
Effect of Soil Structure Interaction on Seismic Response of Multistorey Building
Soil structure interaction of RC building with different foundations and soil...
Soil structure interaction of RC building with different foundations and soil...
Impact of fault line on behaviour of flat slab under vertical motion of earth...
Impact of fault line on behaviour of flat slab under vertical motion of earth...
Ijciet 08 02_008
Ijciet 08 02_008
A review on: The influence of soil conditions on the seismic forces in RC bui...
A review on: The influence of soil conditions on the seismic forces in RC bui...
IRJET-Analysis and Seismic Response Reduction of Building using Base Isolatio...
IRJET-Analysis and Seismic Response Reduction of Building using Base Isolatio...
Effect of Soil Structure Interaction on Buildings with Stiffness Irregularity...
Effect of Soil Structure Interaction on Buildings with Stiffness Irregularity...
PERFORMANCE BASED ANALYSIS OF RC STRUCTURE WITH AND WITHOUT CONSIDERING SOIL ...
PERFORMANCE BASED ANALYSIS OF RC STRUCTURE WITH AND WITHOUT CONSIDERING SOIL ...
Numerical modeling of reinforced soil segmental wall under surcharge loading
Numerical modeling of reinforced soil segmental wall under surcharge loading
IRJET- Analysis of Irregular RCC Framed Structure for Fundamental Natural...
IRJET- Analysis of Irregular RCC Framed Structure for Fundamental Natural...
IRJET- Seismic Evaluation of Symmetric and Asymmetric Buildings by Pushover a...
IRJET- Seismic Evaluation of Symmetric and Asymmetric Buildings by Pushover a...
A Study on the Impact of Seismic Performance on RCC Frames
A Study on the Impact of Seismic Performance on RCC Frames
Basic concepts in indian standard eq design codes
Basic concepts in indian standard eq design codes
Comparative Study of Commercial High-Rise Building with Flat Slab by Varying ...
Comparative Study of Commercial High-Rise Building with Flat Slab by Varying ...
A Building Frame Experimental Study Supported On Piles
A Building Frame Experimental Study Supported On Piles
Modal analysis of multistorey rectangular buildings with 1:2:2.5 plan ratios
Modal analysis of multistorey rectangular buildings with 1:2:2.5 plan ratios
Effect of foundation flexibility on dynamic behaviour of asymmetric building ...
Effect of foundation flexibility on dynamic behaviour of asymmetric building ...
1893 1
1893 1
Más de IAEME Publication
IAEME_Publication_Call_for_Paper_September_2022.pdf
IAEME_Publication_Call_for_Paper_September_2022.pdf
IAEME Publication
MODELING AND ANALYSIS OF SURFACE ROUGHNESS AND WHITE LATER THICKNESS IN WIRE-...
MODELING AND ANALYSIS OF SURFACE ROUGHNESS AND WHITE LATER THICKNESS IN WIRE-...
IAEME Publication
A STUDY ON THE REASONS FOR TRANSGENDER TO BECOME ENTREPRENEURS
A STUDY ON THE REASONS FOR TRANSGENDER TO BECOME ENTREPRENEURS
IAEME Publication
BROAD UNEXPOSED SKILLS OF TRANSGENDER ENTREPRENEURS
BROAD UNEXPOSED SKILLS OF TRANSGENDER ENTREPRENEURS
IAEME Publication
DETERMINANTS AFFECTING THE USER'S INTENTION TO USE MOBILE BANKING APPLICATIONS
DETERMINANTS AFFECTING THE USER'S INTENTION TO USE MOBILE BANKING APPLICATIONS
IAEME Publication
ANALYSE THE USER PREDILECTION ON GPAY AND PHONEPE FOR DIGITAL TRANSACTIONS
ANALYSE THE USER PREDILECTION ON GPAY AND PHONEPE FOR DIGITAL TRANSACTIONS
IAEME Publication
VOICE BASED ATM FOR VISUALLY IMPAIRED USING ARDUINO
VOICE BASED ATM FOR VISUALLY IMPAIRED USING ARDUINO
IAEME Publication
IMPACT OF EMOTIONAL INTELLIGENCE ON HUMAN RESOURCE MANAGEMENT PRACTICES AMONG...
IMPACT OF EMOTIONAL INTELLIGENCE ON HUMAN RESOURCE MANAGEMENT PRACTICES AMONG...
IAEME Publication
VISUALISING AGING PARENTS & THEIR CLOSE CARERS LIFE JOURNEY IN AGING ECONOMY
VISUALISING AGING PARENTS & THEIR CLOSE CARERS LIFE JOURNEY IN AGING ECONOMY
IAEME Publication
A STUDY ON THE IMPACT OF ORGANIZATIONAL CULTURE ON THE EFFECTIVENESS OF PERFO...
A STUDY ON THE IMPACT OF ORGANIZATIONAL CULTURE ON THE EFFECTIVENESS OF PERFO...
IAEME Publication
GANDHI ON NON-VIOLENT POLICE
GANDHI ON NON-VIOLENT POLICE
IAEME Publication
A STUDY ON TALENT MANAGEMENT AND ITS IMPACT ON EMPLOYEE RETENTION IN SELECTED...
A STUDY ON TALENT MANAGEMENT AND ITS IMPACT ON EMPLOYEE RETENTION IN SELECTED...
IAEME Publication
ATTRITION IN THE IT INDUSTRY DURING COVID-19 PANDEMIC: LINKING EMOTIONAL INTE...
ATTRITION IN THE IT INDUSTRY DURING COVID-19 PANDEMIC: LINKING EMOTIONAL INTE...
IAEME Publication
INFLUENCE OF TALENT MANAGEMENT PRACTICES ON ORGANIZATIONAL PERFORMANCE A STUD...
INFLUENCE OF TALENT MANAGEMENT PRACTICES ON ORGANIZATIONAL PERFORMANCE A STUD...
IAEME Publication
A STUDY OF VARIOUS TYPES OF LOANS OF SELECTED PUBLIC AND PRIVATE SECTOR BANKS...
A STUDY OF VARIOUS TYPES OF LOANS OF SELECTED PUBLIC AND PRIVATE SECTOR BANKS...
IAEME Publication
EXPERIMENTAL STUDY OF MECHANICAL AND TRIBOLOGICAL RELATION OF NYLON/BaSO4 POL...
EXPERIMENTAL STUDY OF MECHANICAL AND TRIBOLOGICAL RELATION OF NYLON/BaSO4 POL...
IAEME Publication
ROLE OF SOCIAL ENTREPRENEURSHIP IN RURAL DEVELOPMENT OF INDIA - PROBLEMS AND ...
ROLE OF SOCIAL ENTREPRENEURSHIP IN RURAL DEVELOPMENT OF INDIA - PROBLEMS AND ...
IAEME Publication
OPTIMAL RECONFIGURATION OF POWER DISTRIBUTION RADIAL NETWORK USING HYBRID MET...
OPTIMAL RECONFIGURATION OF POWER DISTRIBUTION RADIAL NETWORK USING HYBRID MET...
IAEME Publication
APPLICATION OF FRUGAL APPROACH FOR PRODUCTIVITY IMPROVEMENT - A CASE STUDY OF...
APPLICATION OF FRUGAL APPROACH FOR PRODUCTIVITY IMPROVEMENT - A CASE STUDY OF...
IAEME Publication
A MULTIPLE – CHANNEL QUEUING MODELS ON FUZZY ENVIRONMENT
A MULTIPLE – CHANNEL QUEUING MODELS ON FUZZY ENVIRONMENT
IAEME Publication
Más de IAEME Publication
(20)
IAEME_Publication_Call_for_Paper_September_2022.pdf
IAEME_Publication_Call_for_Paper_September_2022.pdf
MODELING AND ANALYSIS OF SURFACE ROUGHNESS AND WHITE LATER THICKNESS IN WIRE-...
MODELING AND ANALYSIS OF SURFACE ROUGHNESS AND WHITE LATER THICKNESS IN WIRE-...
A STUDY ON THE REASONS FOR TRANSGENDER TO BECOME ENTREPRENEURS
A STUDY ON THE REASONS FOR TRANSGENDER TO BECOME ENTREPRENEURS
BROAD UNEXPOSED SKILLS OF TRANSGENDER ENTREPRENEURS
BROAD UNEXPOSED SKILLS OF TRANSGENDER ENTREPRENEURS
DETERMINANTS AFFECTING THE USER'S INTENTION TO USE MOBILE BANKING APPLICATIONS
DETERMINANTS AFFECTING THE USER'S INTENTION TO USE MOBILE BANKING APPLICATIONS
ANALYSE THE USER PREDILECTION ON GPAY AND PHONEPE FOR DIGITAL TRANSACTIONS
ANALYSE THE USER PREDILECTION ON GPAY AND PHONEPE FOR DIGITAL TRANSACTIONS
VOICE BASED ATM FOR VISUALLY IMPAIRED USING ARDUINO
VOICE BASED ATM FOR VISUALLY IMPAIRED USING ARDUINO
IMPACT OF EMOTIONAL INTELLIGENCE ON HUMAN RESOURCE MANAGEMENT PRACTICES AMONG...
IMPACT OF EMOTIONAL INTELLIGENCE ON HUMAN RESOURCE MANAGEMENT PRACTICES AMONG...
VISUALISING AGING PARENTS & THEIR CLOSE CARERS LIFE JOURNEY IN AGING ECONOMY
VISUALISING AGING PARENTS & THEIR CLOSE CARERS LIFE JOURNEY IN AGING ECONOMY
A STUDY ON THE IMPACT OF ORGANIZATIONAL CULTURE ON THE EFFECTIVENESS OF PERFO...
A STUDY ON THE IMPACT OF ORGANIZATIONAL CULTURE ON THE EFFECTIVENESS OF PERFO...
GANDHI ON NON-VIOLENT POLICE
GANDHI ON NON-VIOLENT POLICE
A STUDY ON TALENT MANAGEMENT AND ITS IMPACT ON EMPLOYEE RETENTION IN SELECTED...
A STUDY ON TALENT MANAGEMENT AND ITS IMPACT ON EMPLOYEE RETENTION IN SELECTED...
ATTRITION IN THE IT INDUSTRY DURING COVID-19 PANDEMIC: LINKING EMOTIONAL INTE...
ATTRITION IN THE IT INDUSTRY DURING COVID-19 PANDEMIC: LINKING EMOTIONAL INTE...
INFLUENCE OF TALENT MANAGEMENT PRACTICES ON ORGANIZATIONAL PERFORMANCE A STUD...
INFLUENCE OF TALENT MANAGEMENT PRACTICES ON ORGANIZATIONAL PERFORMANCE A STUD...
A STUDY OF VARIOUS TYPES OF LOANS OF SELECTED PUBLIC AND PRIVATE SECTOR BANKS...
A STUDY OF VARIOUS TYPES OF LOANS OF SELECTED PUBLIC AND PRIVATE SECTOR BANKS...
EXPERIMENTAL STUDY OF MECHANICAL AND TRIBOLOGICAL RELATION OF NYLON/BaSO4 POL...
EXPERIMENTAL STUDY OF MECHANICAL AND TRIBOLOGICAL RELATION OF NYLON/BaSO4 POL...
ROLE OF SOCIAL ENTREPRENEURSHIP IN RURAL DEVELOPMENT OF INDIA - PROBLEMS AND ...
ROLE OF SOCIAL ENTREPRENEURSHIP IN RURAL DEVELOPMENT OF INDIA - PROBLEMS AND ...
OPTIMAL RECONFIGURATION OF POWER DISTRIBUTION RADIAL NETWORK USING HYBRID MET...
OPTIMAL RECONFIGURATION OF POWER DISTRIBUTION RADIAL NETWORK USING HYBRID MET...
APPLICATION OF FRUGAL APPROACH FOR PRODUCTIVITY IMPROVEMENT - A CASE STUDY OF...
APPLICATION OF FRUGAL APPROACH FOR PRODUCTIVITY IMPROVEMENT - A CASE STUDY OF...
A MULTIPLE – CHANNEL QUEUING MODELS ON FUZZY ENVIRONMENT
A MULTIPLE – CHANNEL QUEUING MODELS ON FUZZY ENVIRONMENT
Último
Web Form Automation for Bonterra Impact Management (fka Social Solutions Apri...
Web Form Automation for Bonterra Impact Management (fka Social Solutions Apri...
Jeffrey Haguewood
Elevate Developer Efficiency & build GenAI Application with Amazon Q
Elevate Developer Efficiency & build GenAI Application with Amazon Q
Bhuvaneswari Subramani
Apidays New York 2024 - The value of a flexible API Management solution for O...
Apidays New York 2024 - The value of a flexible API Management solution for O...
apidays
"I see eyes in my soup": How Delivery Hero implemented the safety system for ...
"I see eyes in my soup": How Delivery Hero implemented the safety system for ...
Zilliz
MINDCTI Revenue Release Quarter One 2024
MINDCTI Revenue Release Quarter One 2024
MIND CTI
Platformless Horizons for Digital Adaptability
Platformless Horizons for Digital Adaptability
WSO2
Strategies for Landing an Oracle DBA Job as a Fresher
Strategies for Landing an Oracle DBA Job as a Fresher
Remote DBA Services
AWS Community Day CPH - Three problems of Terraform
AWS Community Day CPH - Three problems of Terraform
Andrey Devyatkin
+971581248768>> SAFE AND ORIGINAL ABORTION PILLS FOR SALE IN DUBAI AND ABUDHA...
+971581248768>> SAFE AND ORIGINAL ABORTION PILLS FOR SALE IN DUBAI AND ABUDHA...
?#DUbAI#??##{{(☎️+971_581248768%)**%*]'#abortion pills for sale in dubai@
EMPOWERMENT TECHNOLOGY GRADE 11 QUARTER 2 REVIEWER
EMPOWERMENT TECHNOLOGY GRADE 11 QUARTER 2 REVIEWER
MadyBayot
Architecting Cloud Native Applications
Architecting Cloud Native Applications
WSO2
Artificial Intelligence Chap.5 : Uncertainty
Artificial Intelligence Chap.5 : Uncertainty
Khushali Kathiriya
DEV meet-up UiPath Document Understanding May 7 2024 Amsterdam
DEV meet-up UiPath Document Understanding May 7 2024 Amsterdam
UiPathCommunity
Apidays New York 2024 - Passkeys: Developing APIs to enable passwordless auth...
Apidays New York 2024 - Passkeys: Developing APIs to enable passwordless auth...
apidays
Exploring Multimodal Embeddings with Milvus
Exploring Multimodal Embeddings with Milvus
Zilliz
Polkadot JAM Slides - Token2049 - By Dr. Gavin Wood
Polkadot JAM Slides - Token2049 - By Dr. Gavin Wood
Juan lago vázquez
Apidays New York 2024 - Accelerating FinTech Innovation by Vasa Krishnan, Fin...
Apidays New York 2024 - Accelerating FinTech Innovation by Vasa Krishnan, Fin...
apidays
Apidays New York 2024 - The Good, the Bad and the Governed by David O'Neill, ...
Apidays New York 2024 - The Good, the Bad and the Governed by David O'Neill, ...
apidays
Vector Search -An Introduction in Oracle Database 23ai.pptx
Vector Search -An Introduction in Oracle Database 23ai.pptx
Remote DBA Services
Navigating the Deluge_ Dubai Floods and the Resilience of Dubai International...
Navigating the Deluge_ Dubai Floods and the Resilience of Dubai International...
Orbitshub
Último
(20)
Web Form Automation for Bonterra Impact Management (fka Social Solutions Apri...
Web Form Automation for Bonterra Impact Management (fka Social Solutions Apri...
Elevate Developer Efficiency & build GenAI Application with Amazon Q
Elevate Developer Efficiency & build GenAI Application with Amazon Q
Apidays New York 2024 - The value of a flexible API Management solution for O...
Apidays New York 2024 - The value of a flexible API Management solution for O...
"I see eyes in my soup": How Delivery Hero implemented the safety system for ...
"I see eyes in my soup": How Delivery Hero implemented the safety system for ...
MINDCTI Revenue Release Quarter One 2024
MINDCTI Revenue Release Quarter One 2024
Platformless Horizons for Digital Adaptability
Platformless Horizons for Digital Adaptability
Strategies for Landing an Oracle DBA Job as a Fresher
Strategies for Landing an Oracle DBA Job as a Fresher
AWS Community Day CPH - Three problems of Terraform
AWS Community Day CPH - Three problems of Terraform
+971581248768>> SAFE AND ORIGINAL ABORTION PILLS FOR SALE IN DUBAI AND ABUDHA...
+971581248768>> SAFE AND ORIGINAL ABORTION PILLS FOR SALE IN DUBAI AND ABUDHA...
EMPOWERMENT TECHNOLOGY GRADE 11 QUARTER 2 REVIEWER
EMPOWERMENT TECHNOLOGY GRADE 11 QUARTER 2 REVIEWER
Architecting Cloud Native Applications
Architecting Cloud Native Applications
Artificial Intelligence Chap.5 : Uncertainty
Artificial Intelligence Chap.5 : Uncertainty
DEV meet-up UiPath Document Understanding May 7 2024 Amsterdam
DEV meet-up UiPath Document Understanding May 7 2024 Amsterdam
Apidays New York 2024 - Passkeys: Developing APIs to enable passwordless auth...
Apidays New York 2024 - Passkeys: Developing APIs to enable passwordless auth...
Exploring Multimodal Embeddings with Milvus
Exploring Multimodal Embeddings with Milvus
Polkadot JAM Slides - Token2049 - By Dr. Gavin Wood
Polkadot JAM Slides - Token2049 - By Dr. Gavin Wood
Apidays New York 2024 - Accelerating FinTech Innovation by Vasa Krishnan, Fin...
Apidays New York 2024 - Accelerating FinTech Innovation by Vasa Krishnan, Fin...
Apidays New York 2024 - The Good, the Bad and the Governed by David O'Neill, ...
Apidays New York 2024 - The Good, the Bad and the Governed by David O'Neill, ...
Vector Search -An Introduction in Oracle Database 23ai.pptx
Vector Search -An Introduction in Oracle Database 23ai.pptx
Navigating the Deluge_ Dubai Floods and the Resilience of Dubai International...
Navigating the Deluge_ Dubai Floods and the Resilience of Dubai International...
20320140505010
1.
International Journal of
Civil Engineering and Technology (IJCIET), ISSN 0976 – 6308 (Print), ISSN 0976 – 6316(Online), Volume 5, Issue 5, May (2014), pp. 97-104 © IAEME 97 EVALUATION OF SOIL-STRUCTURE INTERACTION GUIDELINES IN INDIAN SEISMIC CODES Ravi Kant Mittal1 , Vaibhav Gajinkar2 1 Assistant Professor, Department of Civil Engineering, Birla Institute of Technology and Science, Pilani – 333031. India 2 Master Student (Structural Engineering), Department of Civil Engineering, Birla Institute of Technology and Science, Pilani – 333031, India. ABSTRACT According to new guidelines from Indian standards on Earthquake resistant design of structures (IS1893-Part1 and 4), seismic soil-structure interaction (SSI) should be considered if structure is resting other than rock or rock like material having SPT value less than 50. In the present study adequacy of codal provisions related to SSI, given in 1893- part 4 (2005) are evaluated. A parametric study is carried out on a 150 m tall RCC chimney considering the effect of seismic zone on structural response of chimney by incorporating strain dependent shear modulus. The analysis and results show that the time period increases with increase in soil flexibility, while design base shear and design bending moment decreases with increase in soil flexibility. Effect of seismic intensity on shear modulus of soil is considered and consequently the effect on the response of the structure is determined. The reduction in the shear modulus of soil could tend to affect the response as compared to the fixed base by a huge amount in zones of high seismic intensity. Indian code should include provisions to account for this reduction in shear modulus depending upon seismic zone. Keywords: Seismic Soil-structure interactions (SSI), seismic zone, strain dependent shear modulus, Indian Seismic Code 1. INTRODUCTION Conventional structural design suggested in various codes neglect the SSI effects for light structures resting on rock or stiff soil. Considering soil-structure interaction makes a structure more flexible and thus, increasing the natural period of the structure compared to the corresponding rigidly supported structure. Moreover, considering the SSI effect increases the effective damping ratio of the system. The smooth idealization of design spectrum suggests smaller seismic response with the increased natural periods and effective damping ratio due to SSI. With this assumption, it was INTERNATIONAL JOURNAL OF CIVIL ENGINEERING AND TECHNOLOGY (IJCIET) ISSN 0976 – 6308 (Print) ISSN 0976 – 6316(Online) Volume 5, Issue 5, May (2014), pp. 97-104 © IAEME: www.iaeme.com/ijciet.asp Journal Impact Factor (2014): 7.9290 (Calculated by GISI) www.jifactor.com IJCIET ©IAEME
2.
International Journal of
Civil Engineering and Technology (IJCIET), ISSN 0976 – 6308 (Print), ISSN 0976 – 6316(Online), Volume 5, Issue 5, May (2014), pp. 97-104 © IAEME 98 traditionally been considered that SSI can conveniently be neglected for conservative design. This conservative simplification is valid for certain class of structures and soil conditions, such as light structures in relatively stiff soil. However, most of cases structure is not light and resting on soil which is not stiff or rock. In fact, the SSI can have a detrimental effect on the structural response, and neglecting SSI in the analysis may lead to unsafe design for both the superstructure and the foundation. Effects of SSI, plays an important role for heavy structures resting on relatively soft soils for example nuclear power plants, high-rise buildings, chimneys, elevated-highways on soft soil, structures with massive or deep-seated foundations, such as bridge piers, offshore caissons, and silos. ([1] to [10]) 2. SSI PROVISIONS IN INDIAN SEISMIC CODES According to new guidelines from Indian standards on Earthquake resistant design of structures (IS1893-Part1 [1] and IS1893-Part 4[2]), soil structure interaction (SSI) should be considered if structure is resting other than rock or rock like material having SPT value less than 50. First time detailed formulation how to include soil structure interaction for chimneys and stack like structures is given in [2] and described below. 2.1 Fixed Base Time Period As per the codal provision, the time period of stack like structures when fixed at base shall be calculated using the formula ܶ ൌ ܥ்ට ௐு ா (1) where CT= coefficient depending upon the slenderness ratio of the structure given in Table 6 of IS 1893 (Part 4), W = total weight of the structure including weight of lining and contents above the base, H = height of structure above the base, Ec= modulus of elasticity of material of the structural shell, A = area of cross-section at the base of the structural shell, For circular sections, A = 2πrt, where r is the mean radius of structural shell and t its thickness, and g = acceleration due to gravity. 2.2 Horizontal Seismic Coefficient Using the period T, the horizontal seismic coefficient Ah shall be obtained from the spectrum given in IS 1893(Part 1). The design horizontal seismic coefficient for design basis earthquake (DBE) shall be determined by the following expression adopted in [1]. ܣ ൌ ଶ ூ ோ ௌೌ (2) Z = zone factor. This is in accordance with Table 2 of 1S 1893 (PartI), I = importance factor as given in Table 8 of IS 1893(Part 4), R = response reduction factor as given in Table9 of [2], and Sa/ g = spectral acceleration coefficient for rock and soil sites as given in Fig. 1 of [1]. 2.3 Design Shear force and Moment Either simplified method (that is, equivalent static lateral force method) or the dynamic response spectrum modal analysis method is recommended for calculating the seismic forces
3.
International Journal of
Civil Engineering and Technology (IJCIET), ISSN 0976 – 6308 (Print), ISSN 0976 – 6316(Online), Volume 5, Issue 5, May (2014), pp. 97-104 © IAEME 99 developed in such structures. Site spectra compatible time history analysis may also be carried out instead of response spectrum analysis. 2.4 Simplified Method (Equivalent Static Lateral Force Method) The simplified method can be used for ordinary stack-like structures. The design shear force, V and design bending moment, M, for such structures at a distance X from the top, shall be calculated by the following formulae: a. ܸ ൌ ܥ௩ܣܹ௧ܦ௩ (3) b. ܯ ൌ ܣܹ௧ĥܦ (4) Cv = coefficient of shear force depending on slenderness ratio k given in Table 6 of IS 1893(Part 4), Ah, = design horizontal seismic coefficient, Wt= total weight of structure including weight of lining and contents above the base, h = height of centre of gravity of structure above base, and Dv, Dm= distribution factors for shear and moment respectively at a distance X from the top as given in Table 10 of IS 1893(Part 4). The expression for the distribution factors for moment and shear along the height is given in Table 11 of IS 1893(Part 4) for use in computer programme. 2.5 Effective time period due to SSI effect In general form, the effective fundamental period of a structure as modified by the soil has been given Velestos and Meek, 1974, ASCE 7([11], [12]) as Ť ൌ ܶඨ1 ೣ ൬1 ೣ ĥ మ ഇ ൰ (5) T = the fundamental period of the structure for fixed base case, = the stiffness of the structure when fixed at the base, defined by the following: ൌ ସగమௐ ்మ (6) ĥ = height of centre of gravity of structureabove base, Lateral stiffness (Kx) and rocking stiffness(Kθ) of the foundation given by Richart et al., 1970[13] is adopted in [2] ܭ௫ ൌ ଷଶሺଵିఔሻீబ ሺି଼ఔሻ (7) ܭఏ ൌ ଼ீబ య ଷሺଵିఔሻ (8) G = shear modulus of soil, ܩ ൌ ߩܸ௦ ଶ ρ = unit weight of soil, Vs = shear wave velocity of the medium, υ = Poisson’s ratio of soil, ro = radius of circular raft foundation. For rectangular foundation effective radius ݎ ൌ ට గ may be taken, where a and b are the dimension of the rectangular foundation.
4.
International Journal of
Civil Engineering and Technology (IJCIET), ISSN 0976 – 6308 (Print), ISSN 0976 – 6316(Online), Volume 5, Issue 5, May (2014), pp. 97-104 © IAEME 100 3. DEPENDENCE OF THE SHEAR MODULUS ON THE STRAIN LEVEL Low strain dynamic shear modulus measured by in situ tests corresponds to shear strain amplitude of less than 0.001 %, represented as Gmax. However shearing strains due to earthquakes range from 0.01 to 0.5 % and may reduce Gmax by 0.9 to 0.2 Gmax. As the shear strain of the soil increases during seismic events, the shear modulus decreases. The shear modulus is used in calculating stiffness values for footings. The difference between the small-strain values of Vs, such as those measured by in situ tests, and the values compatible with the strain levels induced by the design earthquake shall be taken into account in all calculations involving dynamic soil properties under stable conditions. There are no provisions in the Indian code to account for the reduced G value. According to Eurocode 8-part5, 2004 [5], if the ground acceleration ratio is equal to or greater than 0.1 g, (i.e. equal to or greater than 0.98 m/s2 ), the reduction factors for Vs and G value may be applied as given in table 1. The same reduction factors were used in the current analysis for comparison. Table 1: Average soil damping factors and average reduction factors (± one standard deviation) for shear wave velocity Vs and shear modulus G within 20 m depth. (Vsmax=average Vs value at small strain (<10-5 ), not exceeding 300 m/s. Gmax=average shear modulus at small strain) Ground acceleration ratio, α Damping factor ࢂ࢙ ࢂࡿࢇ࢞ ࡳ ࡳࢇ࢞ 0.1 0.03 0.9 (±0.07) 0.8 (±0.10) 0.2 0.06 0.7(±0.15) 0.5 (±0.20) 0.3 0.10 0.6 (±0.15) 0.35 (±0.20) 4. PROBLEM STATEMENT Understanding the importance of effect of soil structure interaction on the seismic response of tall slender structures, in this study attention is focused on evaluating the seismic response of tall chimney considering the effect of soils with different shear velocity ranging from 150 m/s to 1200 m/s (soft soil to hard strata respectively.) and comparing the results obtained with those from fixed base assumption. For analysis a chimney 150m high with raft diameter of 18m and area of shell 8.5m2 was considered. The time period of vibration for the structure fixed at base and the flexible base period were computed separately. The equivalent lateral force static method (clause 17.1, IS 1893-part 4) of analysis was used to compute the design shear force and design bending moment. The properties of different types of soils that were used in study are represented in table 2. The table was extracted from the Mehta and Gandhi, 2008 [14] and sample calculation is given in Appendix A Table 2: Properties of soil Velocity of Shear waves, Vs (m/s) Soil type Density, ρ (kN/m3 ) Poisson’s ratio, υ Shear modulus, G (kN/m2 ) Elastic modulus (kN/m2 ) 150 Soft Soil 16 0.49 36700 14.95 x 104 300 Stiff Soil 20 0.45 183500 25.836 x 105 600 Dense Soil 22.4 0.35 322000 50.53 x 107 1200 Rock 25.6 0.30 3758900 30.42 x 107
5.
International Journal of
Civil Engineering and Technology (IJCIET), ISSN 0976 – 6308 (Print), ISSN 0976 – 6316(Online), Volume 5, Issue 5, May (2014), pp. 97-104 © IAEME 101 5. RESULTS AND DISCUSSION MS Excel spreadsheet was developed to analyse for different responses using Equivalent Static Lateral Force Method for tall chimneys. The following tables 3 and 4 enable us to view the results of analysis for different responses and understand the importance of Soil Structure Interaction (SSI) effects on seismic response of tall chimneys Table 3: % change in base forces with consideration of flexible foundation with respect to fixed foundation for zone IV Type of soil Shear wave velocit y, Vs (m/s) Density,ρ (kN/m³) Poiss on's ratio, ν Without SSI (Fixed base) With SSI (Flexible base) % reducti on in forces Time period, T (sec) Base shear force, V (kN) Base moment, M (kN-m) Time period, T (sec) Base shear force, V (kN) Base moment, M (kN-m) Soft soil 150 16 0.49 1.122 4191.2 213402.4 2.548 1846.49 94016.8 55.94 Stiff soil 300 20 0.45 1.122 3413.2 173788.8 1.545 2479.52 126248.4 27.36 Dense soil 600 22.4 0.35 1.122 2509.7 127785.8 1.248 2257.69 114953.8 10.04 Rock 1200 25.6 0.3 1.122 2509.7 127785.8 1.153 2442.85 124381.3 2.66 Table 4: % change in base forces with consideration of flexible base and reduced G value with respect to fixed foundation Zone Zone factor, Z Without SSI (Fixed base) b With SSI and reduced G valueb % reduction in forces Time period, T (sec) Base shear force, V (kN) Base moment, M (kN-m) Time period, T (sec) Base shear force, V (kN) Base moment, M (kN-m) II 0.10 1.122 1422.172 72412.005 1.634 977.062 49748.58 31.30 III 0.16 1.122 2275.475 115859.208 1.755 1455.703 74119.29 36.03 IV 0.24 1.122 3413.212 173788.813 1.955 1959.574 99774.65 42.59 V 0.36 1.122 5119.818 260683.219 2.117 2714.673 138221.13 46.98 b The values were determined for stiff soil having Vs= 300 m/s, ρ= 20 kN/m³ and ν= 0.45 1. It is observed from Table 3, that the time period for chimney is more for flexible soil. The time period goes on decreasing as the soil goes on getting stiffer. 2. Time period goes on decreasing as the shear velocity increases i.e. for stiffer soils with higher shear velocity the time period values approach nearer to that obtained by fixed base assumption. Hence for shear velocity in excess of 600m/s soil flexibility can be ignored and base can be treated as fixed. 3. Due to SSI effect, the design shear force and bending moment was found to reduce by a greater percentage in case of soft soil when compared to fixed base condition. However for stiffer soils this reduction was very less. 4. Maximum Shear Modulus corresponds to low strain dynamic shear modulus measured at shear strain amplitude of less than 0.001 %. However shearing strains due to earthquakes range from 0.01 to 0.5 % and may reduce Gmax by 0.9 to 0.2 Gmax. Computation with reduced G value leads to further reduction in the shear force and bending moment values as shown in table 4. The reduction is very high in zones of high seismic intensity.
6.
International Journal of
Civil Engineering and Technology (IJCIET), ISSN 0976 – 6308 (Print), ISSN 0976 – 6316(Online), Volume 5, Issue 5, May (2014), pp. 97-104 © IAEME 102 6. CONCLUSION When a chimney was analyzed using equivalent static lateral force method for different types of soils considering flexible base and fixed base, the obtained results showed the importance of soil structure interaction effects. As the shear strain of the soil increases during seismic events, the shear modulus decreases. This could tend to increase or decrease the response as compared to the fixed base by a huge amount in zones of high seismic intensity. There are no provisions in the Indian code to account for the reduced G value. It is thus concluded that seismic response of tall chimneys is influenced greatly by soil supporting its base and nature of earthquake excitations striking the base. Ignoring any one of them, can significantly affect the performance of chimney during earthquake and lead to devastating effects. There is need to revise Indian code by including guidelines on reduction factor used to assess the effect of reduced G value on response of the structure as mentioned in Euro code EN 1998-5:2004 and ASCE 7. REFERENCES [1] IS: 1893 (Part 1), Criteria for Earthquake Resistant Design of Structures (Part 1) General Provisions and Buildings, India: Bureau of Indian Standards, 2002 [2] IS: 1893 (Part 4), Criteria for Earthquake Resistant Design of Structures (Part 4) Industrial Stack-like Structures, India: Bureau of Indian Standards, 2005 [3] ATC-40, Seismic evaluation and retrofit of concrete buildings, Applied Technology Council, 1996. [4] FEMA-450, "NEHRP recommended provisions for seismic regulations for new buildings and other structures," ed. Washington, D.C.: Building Seismic Safety Council, 2003. [5] Eurocode 8- Part-5, EN 1998-5, Design of structures for earthquake resistance-Part 5: Foundations, retaining structures and geotechnical aspects, European Standard, 2004 [6] J. P. Wolf, Dynamic Soil-Structure Interaction. Prentice-Hall, Inc., Englewood Cliffs, New Jersey, 1985 [7] S. L. Kramer, Geotechnical Earthquake Engineering: Pearson Education India, 1996, 294- 305. [8] G. Mylonakis and G. Gazetas, Seismic soil-structure interaction: beneficial or detrimental?, Journal of Earthquake Engineering, 4(3), 2000, pp. 277-301. [9] G. Jie, M. Preising, and B. Jeremic, Benefits and detriments of soil foundation structure interaction, Proceedings of Sessions of Geo-Denver, 2007. [10] Wikipedia http://en.wikipedia.org/wiki/Soil_structure_interaction [11] A. S. Veletsos and J. W. Meek, "Dynamic behaviour of building-foundation systems," Earthquake Engineering and Structural Dynamics, vol. 3, pp. 121-138, 1974. [12] ASCE 7, Minimum Design Loads for Buildings and Other Structures, USA: American Society of Civil Engineers, 2010, 199-202 [13] E. Jr., Richart, J. R. Jr. Hall, and R. D. Woods, Vibration of soils and foundations, Prentice- Hall, 1970 [14] D. Mehta, and N. J. Gandhi, Time response study of tall chimneys, under the effect of Soil Structure Interaction and long period earthquake impulse. In: Proceedings of the 14th World Conference on Earthquake Engineering, Beijing, China, 2008
7.
International Journal of
Civil Engineering and Technology (IJCIET), ISSN 0976 – 6308 (Print), ISSN 0976 – 6316(Online), Volume 5, Issue 5, May (2014), pp. 97-104 © IAEME 103 APPENDIX A Structure details: Height of the RCC chimney, H= 150 m Diameter of raft = 18 m Area of the shell, A = 8.5 m2 Moment of inertia, Ib = 92.5 m4 Assume structure is located in zone IV Soil properties: Unit weight of soil, ρ = 20 kN/m3 ,Poisson's ratio, υ = 0.45 Shear wave velocity, Vs = 300 m/s, Dynamic shear modulus of soil, =ܩ 183486.24 kN/m2 Shell material (concrete) properties: Modulus of elasticity of concrete, Ec = 3.12 x 108 kN/m2 Unit weight of concrete, γc = 25 kN/m3 Without considering SSI effect (Fixed base condition) Weight of chimney ܹ ൌ ߛܪܣ 31875 kN Height of centre of gravity of structure above base ĥ ൌ ܪ 2ൗ 75 m Radius of gyration of the chimney ݎ ൌ ටܫ ܣൗ 3.299 m Slenderness ratio k = H/re 45.47 From table 6 of IS 1893 (Part 4) CT 82.8 CV 1.473 As per IS 1893 (Part 4), time period of a fixed base chimney is given by ܶ ൌ ܥ்ඨ ܹܪ ܧ݃ܣ 1.122 sec Considering medium soil, (Clause 6.4.5 of IS 1893- part 1) ܵ ݃ ൌ 1.36 ܶ 1.2116 Zone factor (Table 2 of IS 1893- part 1) Z 0.24 Importance factor (Table 8 of IS 1893- part 4) I 1.5 Response reduction factor (Table 9 of IS1893-part 4) R 3 Horizontal siesmic coefficient ܣ ൌ ܼ 2 ܫ ܴ ܵ ݃ 0.0727 At base of the chimney From table 10 of IS 1893 (Part 4) DV 1 Dm 1 Design shear force ܸ ൌ ܥ௩ܣܹ௧ܦ௩ 3413.212 kN Design bending moment ܯ ൌ ܣܹ௧ĥܦ 173788.81 kNm
8.
International Journal of
Civil Engineering and Technology (IJCIET), ISSN 0976 – 6308 (Print), ISSN 0976 – 6316(Online), Volume 5, Issue 5, May (2014), pp. 97-104 © IAEME 104 Considering SSI effect and Gmax value Radius of raft r0 9 m The fixed base stiffness of the chimney ൌ 4ߨଶ ܹ ݃ܶଶ 101807.863 kN/m Horizontal soil stiffness ܭ௫ ൌ 32ሺ1 െ ߥሻݎܩ ሺ7 െ 8ߥሻ 8548300.054 kN/m Rocking soil stiffness ܭఏ ൌ 8ݎܩ ଷ 3ሺ1 െ ߥሻ 648540450.4 kN/m Effective time period Ť ൌ ܶඨ1 ܭ௫ ൭1 ܭ௫ ĥ ଶ ܭఏ ൱ 1.545 sec For medium soil ܵ ݃ ൌ 1.36 ܶ 0.8802 Horizontal siesmic coefficient Ah 0.0528 Design shear force ܸ ൌ ܥ௩ܣܹ௧ܦ௩ 2479.520 kN Design bending moment ܯ ൌ ܣܹ௧ĥܦ 126248.474 kNm Percentage reduction in shear 27.36 % Considering soil effect with reduced G value Ground acceleration ratio (for zone IV) α 0.24 As per Euro code 8- part 5 (table 1) average reduction factor ܩ ܩ௫ 0.44 Thus reduced dynamic shear modulus of soil ܩ ൌ ߙܩ௫ 80733.945 kN/m2 Horizontal soil stiffness ܭ௫ ൌ 32ሺ1 െ ߥሻݎܩ ሺ7 െ 8ߥሻ 3761252.024 kN/m Rocking soil stiffness ܭఏ ൌ 8ݎܩ ଷ 3ሺ1 െ ߥሻ 285357798.2 kN/m Effective time period Ť ൌ ܶඨ1 ܭ௫ ൭1 ܭ௫ ĥ ଶ ܭఏ ൱ 1.955 sec For medium soil ܵ ݃ ൌ 1.36 ܶ 0.6956 Horizontal siesmic coefficient Ah 0.0417 Design shear force ܸ ൌ ܥ௩ܣܹ௧ܦ௩ 1959.574 kN Design bending moment ܯ ൌ ܣܹ௧ĥܦ 99774.65 kNm Percentage reduction in shear 42.59 %
Descargar ahora