SlideShare una empresa de Scribd logo
1 de 10
Descargar para leer sin conexión
Joist Floor System




             Joist Floor Systems

General framing layout of
the pan joist system.




                                   1
One-Way Joist
  Construction

 Definition: Pan joist floor
 systems are series of closely
 spaced cast-in-place T-beams
 or joists used for long-span
 floors with relatively light
 loads. Typically removable
 metal forms (fillers or pans)
 are used to form joists.


            MacGregor, Fig. 10-28




             One-Way Joist Construction

Details of ribbed floor with
removable steel pans.



Ribbed-floor cross sections.




                                          2
One-Way Joist
      Construction
 The design of a ribbed floor
 with steel pan forms and
 average weight of the floor.




           One-Way Joist Construction
The design of a ribbed floor with steel pan forms and
average weight of the floor.




                                                        3
One-Way Joist Construction

                                    Joist Details




          Joist Floor Systems
• SNI Requirements for Joist Construction
  (Sec. 10.11, SNI 2847)
   – Slabs and ribs must be cast monolithically.
   – Ribs must be spaced consistently
   – Ribs may not be less than 100 mm in width




                                                    4
Joist Floor Systems
 • SNI Requirements for Joist Construction (cont.)
   (Sec. 10.11, SNI 2847)
    – Depth of ribs may not be more than 3.5 times
      the minimum rib width
    – Clear spacing between ribs shall not exceed 750
      mm.
    ** Ribbed slabs not meeting these requirements
      are designed as slabs and beams. **




           Joist Floor Systems
• Slab Thickness
  – (SNI Sec. 10.11.6.1)

     t ≥ 50 mm for joist formed with 500 mm wide pans

     t ≥ 62,5 mm for joist formed with 750 mm wide pans




                                                          5
Joist Floor Systems
• Slab Thickness (cont.)
  – Building codes give minimum fire resistance rating:

     1-hour fire rating: 20 mm. cover, 75-90 mm slab
      thickness

     2-hour fire rating: 25 mm. cover, 110 mm slab
      thickness




      Joist Floor
       Systems
• Standard Removable
  Form Dimensions

  – Note the shapes




                                                          6
Joist Floor Systems
  • Standard Removable Form Dimensions

    – Standard Widths: 500 mm. & 750 mm.
      (measured at bottom of ribs)

    – Standard Depths: 150, 200, 250, 300, 350, 400
      or 500 mm.




            Joist Floor Systems
• Standard Removable Form Dimensions (cont.)

  – End Forms: one end is closed (built-in) to form
    the supporting beam

  – Tapered End Forms: provide additional shear
    capacity at ends of joists by tapering ends to
    increase rib width.




                                                      7
Joist Slabs

Standard Pan Joist Form
Dimensions
Ref. CECO Concrete Construction
Catalog




       Joist Slabs


Standard Pan Joist Form
Dimensions
Ref. CECO Concrete Construction
Catalog




                                  8
Joist Floor Systems
• Laying Out Pan Joist Floors

  – Rib/slab thickness
     • Governed by strength, fire rating, available space

  – Overall depth and rib thickness
     • Governed by deflections and shear




            Joist Floor Systems
  • Laying Out Pan Joist Floors (cont.)

    – Typically no stirrups are used in joists

    – Reducing Forming Costs:
       • Use constant joist depth for entire floor
       • Use same depth for joists and beams (not
         always possible)




                                                            9
Joist Floor Systems
• Distribution Ribs
  –Placed perpendicular to joists*
  –Spans < 6m.: None
  –Spans 6-9 m.: Provided a midspan
  –Spans > 9 m.: Provided at third-points
  –At least one continuous 13mm bar is provided
   at top and bottom of distribution rib.
  *Note: not required by the Code, but typically
   used in construction




                                                   10

Más contenido relacionado

La actualidad más candente

PRECAST CONCRETE STAIRS
  PRECAST CONCRETE STAIRS  PRECAST CONCRETE STAIRS
PRECAST CONCRETE STAIRSAbhishek Mewada
 
Fly ash stablization ppt
Fly ash stablization pptFly ash stablization ppt
Fly ash stablization pptVikrant Sharma
 
Precast Concrete Steps Construction Tutorial by Armtec Ltd.
Precast Concrete Steps Construction Tutorial by Armtec Ltd.Precast Concrete Steps Construction Tutorial by Armtec Ltd.
Precast Concrete Steps Construction Tutorial by Armtec Ltd.Communications Branding
 
Experimental study of precast portal frame
Experimental study of precast portal frameExperimental study of precast portal frame
Experimental study of precast portal frameSatish Kambaliya
 
CONSTRUCTION METHODS BASICS BTCE-503-18
CONSTRUCTION METHODS BASICSBTCE-503-18CONSTRUCTION METHODS BASICSBTCE-503-18
CONSTRUCTION METHODS BASICS BTCE-503-18SANJEEV Wazir
 
Formwork construction in structures
Formwork construction in structuresFormwork construction in structures
Formwork construction in structuresRithika Ravishankar
 
Building Construction 8. formworks and scaffoldings
Building Construction 8. formworks and scaffoldingsBuilding Construction 8. formworks and scaffoldings
Building Construction 8. formworks and scaffoldingsHamdija Velagic
 
Formwork by chakamba john
Formwork by chakamba johnFormwork by chakamba john
Formwork by chakamba johnJohn Chakamba
 
Formwork for Bridge and Centering Of Arch
Formwork for Bridge and Centering Of ArchFormwork for Bridge and Centering Of Arch
Formwork for Bridge and Centering Of ArchYash Patel
 
plastic modular formwork
plastic modular formworkplastic modular formwork
plastic modular formworkzhen fang
 
Formwork Presentation for Construction Technology
Formwork Presentation for Construction TechnologyFormwork Presentation for Construction Technology
Formwork Presentation for Construction TechnologyI'mMiss Lily
 

La actualidad más candente (20)

Roofing members
Roofing membersRoofing members
Roofing members
 
Floor and slabs
Floor and slabsFloor and slabs
Floor and slabs
 
PRECAST CONCRETE STAIRS
  PRECAST CONCRETE STAIRS  PRECAST CONCRETE STAIRS
PRECAST CONCRETE STAIRS
 
Fly ash stablization ppt
Fly ash stablization pptFly ash stablization ppt
Fly ash stablization ppt
 
Precast Concrete Steps Construction Tutorial by Armtec Ltd.
Precast Concrete Steps Construction Tutorial by Armtec Ltd.Precast Concrete Steps Construction Tutorial by Armtec Ltd.
Precast Concrete Steps Construction Tutorial by Armtec Ltd.
 
Experimental study of precast portal frame
Experimental study of precast portal frameExperimental study of precast portal frame
Experimental study of precast portal frame
 
Slab
SlabSlab
Slab
 
Grid/ Waffle Slabs
Grid/ Waffle SlabsGrid/ Waffle Slabs
Grid/ Waffle Slabs
 
PreCast Construction
PreCast ConstructionPreCast Construction
PreCast Construction
 
CONSTRUCTION METHODS BASICS BTCE-503-18
CONSTRUCTION METHODS BASICSBTCE-503-18CONSTRUCTION METHODS BASICSBTCE-503-18
CONSTRUCTION METHODS BASICS BTCE-503-18
 
Formwork construction in structures
Formwork construction in structuresFormwork construction in structures
Formwork construction in structures
 
Waffle slab
Waffle slabWaffle slab
Waffle slab
 
Costruction ppt
Costruction pptCostruction ppt
Costruction ppt
 
Waffle or ribbed slab
Waffle or ribbed slabWaffle or ribbed slab
Waffle or ribbed slab
 
Building Construction 8. formworks and scaffoldings
Building Construction 8. formworks and scaffoldingsBuilding Construction 8. formworks and scaffoldings
Building Construction 8. formworks and scaffoldings
 
Formwork by chakamba john
Formwork by chakamba johnFormwork by chakamba john
Formwork by chakamba john
 
Formwork for Bridge and Centering Of Arch
Formwork for Bridge and Centering Of ArchFormwork for Bridge and Centering Of Arch
Formwork for Bridge and Centering Of Arch
 
Chapter 4
Chapter 4Chapter 4
Chapter 4
 
plastic modular formwork
plastic modular formworkplastic modular formwork
plastic modular formwork
 
Formwork Presentation for Construction Technology
Formwork Presentation for Construction TechnologyFormwork Presentation for Construction Technology
Formwork Presentation for Construction Technology
 

Destacado

Flow Chart - One Way Joist Construction
Flow Chart - One Way Joist ConstructionFlow Chart - One Way Joist Construction
Flow Chart - One Way Joist ConstructionQamar Uz Zaman
 
Hollow block and ribbed slabs
Hollow block and ribbed slabsHollow block and ribbed slabs
Hollow block and ribbed slabsMohamed Mohsen
 
Civil Engineering (Beams,Columns)
Civil Engineering (Beams,Columns)Civil Engineering (Beams,Columns)
Civil Engineering (Beams,Columns)mbrsalman
 
Construction Insitu Rc Suspended Floors Using Bm Bending Moment Formula Maths
Construction  Insitu Rc Suspended Floors Using Bm Bending Moment Formula MathsConstruction  Insitu Rc Suspended Floors Using Bm Bending Moment Formula Maths
Construction Insitu Rc Suspended Floors Using Bm Bending Moment Formula MathsDaniel Ross
 
Flat slab design
Flat slab designFlat slab design
Flat slab designMoussa Rili
 
Reinforcement detailing
Reinforcement  detailingReinforcement  detailing
Reinforcement detailingAli Ishaqi
 
Beam and slab design
Beam and slab designBeam and slab design
Beam and slab designIvan Ferrer
 
Design of two way slab
Design of two way slabDesign of two way slab
Design of two way slabsarani_reza
 
RC member analysis and design
RC member analysis and designRC member analysis and design
RC member analysis and designKingsley Aboagye
 
Sachpazis RC Slab Analysis and Design in accordance with EN 1992 1-1 2004-Two...
Sachpazis RC Slab Analysis and Design in accordance with EN 1992 1-1 2004-Two...Sachpazis RC Slab Analysis and Design in accordance with EN 1992 1-1 2004-Two...
Sachpazis RC Slab Analysis and Design in accordance with EN 1992 1-1 2004-Two...Dr.Costas Sachpazis
 
Ce1302 design of rc elements
Ce1302 design of rc elementsCe1302 design of rc elements
Ce1302 design of rc elementsPriyabrata Behera
 

Destacado (20)

Flow Chart - One Way Joist Construction
Flow Chart - One Way Joist ConstructionFlow Chart - One Way Joist Construction
Flow Chart - One Way Joist Construction
 
Hollow block and ribbed slabs
Hollow block and ribbed slabsHollow block and ribbed slabs
Hollow block and ribbed slabs
 
ONE WAY SLAB DESIGN
ONE WAY SLAB DESIGNONE WAY SLAB DESIGN
ONE WAY SLAB DESIGN
 
Civil Engineering (Beams,Columns)
Civil Engineering (Beams,Columns)Civil Engineering (Beams,Columns)
Civil Engineering (Beams,Columns)
 
Construction Insitu Rc Suspended Floors Using Bm Bending Moment Formula Maths
Construction  Insitu Rc Suspended Floors Using Bm Bending Moment Formula MathsConstruction  Insitu Rc Suspended Floors Using Bm Bending Moment Formula Maths
Construction Insitu Rc Suspended Floors Using Bm Bending Moment Formula Maths
 
Hollow Block
Hollow Block Hollow Block
Hollow Block
 
One way slab design 10.01.03.162
One way slab design 10.01.03.162One way slab design 10.01.03.162
One way slab design 10.01.03.162
 
BT 1: Concrete Hollow Blocks
BT 1: Concrete Hollow BlocksBT 1: Concrete Hollow Blocks
BT 1: Concrete Hollow Blocks
 
Design of One-Way Slab
Design of One-Way SlabDesign of One-Way Slab
Design of One-Way Slab
 
Flat slab design
Flat slab designFlat slab design
Flat slab design
 
Reinforcement detailing
Reinforcement  detailingReinforcement  detailing
Reinforcement detailing
 
Beam and slab design
Beam and slab designBeam and slab design
Beam and slab design
 
Reinforced slab
Reinforced slabReinforced slab
Reinforced slab
 
Design of two way slab
Design of two way slabDesign of two way slab
Design of two way slab
 
Hopleys Brochure
Hopleys BrochureHopleys Brochure
Hopleys Brochure
 
RC member analysis and design
RC member analysis and designRC member analysis and design
RC member analysis and design
 
CVDEC14
CVDEC14CVDEC14
CVDEC14
 
Sachpazis RC Slab Analysis and Design in accordance with EN 1992 1-1 2004-Two...
Sachpazis RC Slab Analysis and Design in accordance with EN 1992 1-1 2004-Two...Sachpazis RC Slab Analysis and Design in accordance with EN 1992 1-1 2004-Two...
Sachpazis RC Slab Analysis and Design in accordance with EN 1992 1-1 2004-Two...
 
Ce1302 design of rc elements
Ce1302 design of rc elementsCe1302 design of rc elements
Ce1302 design of rc elements
 
Palladianism
PalladianismPalladianism
Palladianism
 

Similar a 04. joist (kuliah iv)

Lecture 4_CIE 551- Part 1 (1).pdf
Lecture 4_CIE 551- Part 1 (1).pdfLecture 4_CIE 551- Part 1 (1).pdf
Lecture 4_CIE 551- Part 1 (1).pdfChrisKapenda
 
Chapter 5 formwork
Chapter 5 formworkChapter 5 formwork
Chapter 5 formworkKHUSHBU SHAH
 
6. FORMWORK (ACE) 2160601 GTU
6. FORMWORK (ACE) 2160601 GTU6. FORMWORK (ACE) 2160601 GTU
6. FORMWORK (ACE) 2160601 GTUVATSAL PATEL
 
Estimating Systems for Homes1
Estimating Systems for Homes1Estimating Systems for Homes1
Estimating Systems for Homes1Keith Daggett
 
Shoring system and Dewatering
Shoring system and DewateringShoring system and Dewatering
Shoring system and DewateringSALEM MOHAMMED
 
Building construction 3 Steel Joints & Footing
Building construction 3 Steel Joints & FootingBuilding construction 3 Steel Joints & Footing
Building construction 3 Steel Joints & Footingaayush koolwal
 
Tutor masonry cladding ppt 2
Tutor masonry cladding ppt 2Tutor masonry cladding ppt 2
Tutor masonry cladding ppt 2Luke D'Arcy
 
Assignment 2 (techniqes construction of mass building)
Assignment  2 (techniqes construction of mass building)Assignment  2 (techniqes construction of mass building)
Assignment 2 (techniqes construction of mass building)rajitk97
 
Slab and it's types,.......................
Slab and it's types,.......................Slab and it's types,.......................
Slab and it's types,.......................MohammedKhaja17
 
Top down construction by Sai Towers P Ltd.
Top down construction by Sai Towers P Ltd.Top down construction by Sai Towers P Ltd.
Top down construction by Sai Towers P Ltd.Sai Towers P Ltd.
 
Secant piled walls dsign - تصميم خوازيق الجدران الساندة - ميكرو بايل
Secant piled walls  dsign - تصميم خوازيق الجدران الساندة - ميكرو بايلSecant piled walls  dsign - تصميم خوازيق الجدران الساندة - ميكرو بايل
Secant piled walls dsign - تصميم خوازيق الجدران الساندة - ميكرو بايلDr.youssef hamida
 

Similar a 04. joist (kuliah iv) (20)

Lecture 4_CIE 551- Part 1 (1).pdf
Lecture 4_CIE 551- Part 1 (1).pdfLecture 4_CIE 551- Part 1 (1).pdf
Lecture 4_CIE 551- Part 1 (1).pdf
 
Chapter 5 formwork
Chapter 5 formworkChapter 5 formwork
Chapter 5 formwork
 
FALSE CEILING
FALSE CEILINGFALSE CEILING
FALSE CEILING
 
Form Work
Form Work Form Work
Form Work
 
Shell structure
Shell structureShell structure
Shell structure
 
6. FORMWORK (ACE) 2160601 GTU
6. FORMWORK (ACE) 2160601 GTU6. FORMWORK (ACE) 2160601 GTU
6. FORMWORK (ACE) 2160601 GTU
 
Floor systems
Floor systemsFloor systems
Floor systems
 
Estimating Systems for Homes1
Estimating Systems for Homes1Estimating Systems for Homes1
Estimating Systems for Homes1
 
Shoring system and Dewatering
Shoring system and DewateringShoring system and Dewatering
Shoring system and Dewatering
 
Conventional support system
Conventional support systemConventional support system
Conventional support system
 
Building construction 3 Steel Joints & Footing
Building construction 3 Steel Joints & FootingBuilding construction 3 Steel Joints & Footing
Building construction 3 Steel Joints & Footing
 
Roof truss
Roof trussRoof truss
Roof truss
 
CHE :- 6 form work (MODULE 3)
CHE :- 6 form work (MODULE 3)CHE :- 6 form work (MODULE 3)
CHE :- 6 form work (MODULE 3)
 
Tutor masonry cladding ppt 2
Tutor masonry cladding ppt 2Tutor masonry cladding ppt 2
Tutor masonry cladding ppt 2
 
Assignment 2 (techniqes construction of mass building)
Assignment  2 (techniqes construction of mass building)Assignment  2 (techniqes construction of mass building)
Assignment 2 (techniqes construction of mass building)
 
Slab and it's types,.......................
Slab and it's types,.......................Slab and it's types,.......................
Slab and it's types,.......................
 
Top down construction by Sai Towers P Ltd.
Top down construction by Sai Towers P Ltd.Top down construction by Sai Towers P Ltd.
Top down construction by Sai Towers P Ltd.
 
Piles
PilesPiles
Piles
 
Secant piled walls dsign - تصميم خوازيق الجدران الساندة - ميكرو بايل
Secant piled walls  dsign - تصميم خوازيق الجدران الساندة - ميكرو بايلSecant piled walls  dsign - تصميم خوازيق الجدران الساندة - ميكرو بايل
Secant piled walls dsign - تصميم خوازيق الجدران الساندة - ميكرو بايل
 
pile_foundation_1.ppt
pile_foundation_1.pptpile_foundation_1.ppt
pile_foundation_1.ppt
 

04. joist (kuliah iv)

  • 1. Joist Floor System Joist Floor Systems General framing layout of the pan joist system. 1
  • 2. One-Way Joist Construction Definition: Pan joist floor systems are series of closely spaced cast-in-place T-beams or joists used for long-span floors with relatively light loads. Typically removable metal forms (fillers or pans) are used to form joists. MacGregor, Fig. 10-28 One-Way Joist Construction Details of ribbed floor with removable steel pans. Ribbed-floor cross sections. 2
  • 3. One-Way Joist Construction The design of a ribbed floor with steel pan forms and average weight of the floor. One-Way Joist Construction The design of a ribbed floor with steel pan forms and average weight of the floor. 3
  • 4. One-Way Joist Construction Joist Details Joist Floor Systems • SNI Requirements for Joist Construction (Sec. 10.11, SNI 2847) – Slabs and ribs must be cast monolithically. – Ribs must be spaced consistently – Ribs may not be less than 100 mm in width 4
  • 5. Joist Floor Systems • SNI Requirements for Joist Construction (cont.) (Sec. 10.11, SNI 2847) – Depth of ribs may not be more than 3.5 times the minimum rib width – Clear spacing between ribs shall not exceed 750 mm. ** Ribbed slabs not meeting these requirements are designed as slabs and beams. ** Joist Floor Systems • Slab Thickness – (SNI Sec. 10.11.6.1) t ≥ 50 mm for joist formed with 500 mm wide pans t ≥ 62,5 mm for joist formed with 750 mm wide pans 5
  • 6. Joist Floor Systems • Slab Thickness (cont.) – Building codes give minimum fire resistance rating: 1-hour fire rating: 20 mm. cover, 75-90 mm slab thickness 2-hour fire rating: 25 mm. cover, 110 mm slab thickness Joist Floor Systems • Standard Removable Form Dimensions – Note the shapes 6
  • 7. Joist Floor Systems • Standard Removable Form Dimensions – Standard Widths: 500 mm. & 750 mm. (measured at bottom of ribs) – Standard Depths: 150, 200, 250, 300, 350, 400 or 500 mm. Joist Floor Systems • Standard Removable Form Dimensions (cont.) – End Forms: one end is closed (built-in) to form the supporting beam – Tapered End Forms: provide additional shear capacity at ends of joists by tapering ends to increase rib width. 7
  • 8. Joist Slabs Standard Pan Joist Form Dimensions Ref. CECO Concrete Construction Catalog Joist Slabs Standard Pan Joist Form Dimensions Ref. CECO Concrete Construction Catalog 8
  • 9. Joist Floor Systems • Laying Out Pan Joist Floors – Rib/slab thickness • Governed by strength, fire rating, available space – Overall depth and rib thickness • Governed by deflections and shear Joist Floor Systems • Laying Out Pan Joist Floors (cont.) – Typically no stirrups are used in joists – Reducing Forming Costs: • Use constant joist depth for entire floor • Use same depth for joists and beams (not always possible) 9
  • 10. Joist Floor Systems • Distribution Ribs –Placed perpendicular to joists* –Spans < 6m.: None –Spans 6-9 m.: Provided a midspan –Spans > 9 m.: Provided at third-points –At least one continuous 13mm bar is provided at top and bottom of distribution rib. *Note: not required by the Code, but typically used in construction 10