Bridge engineering

Learning Objectives ,[object Object],[object Object],[object Object]

Lecture-1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What is a Bridge? ,[object Object],[object Object],[object Object]

What is a Bridge? Bridge is the KEY ELEMENT in a Transportation System

Structures for Transportation Beauty can be expressed in the structural efficiency, simplicity, and repetition of a bridge. Millau Viaduct, France

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Bridge Components

Bridge Planning ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Span>6m Bridge Span<6m Culvert ,[object Object],[object Object],[object Object],Bridge Span Length

Types of Bridges Steel Concrete Timber Hybrid Stone/Brick FRP Pedestrian Highway Railroad Short Medium Long Slab Girder Truss Arch Suspension Cable-Stayed Material Usage Span Structural form

Material and Fabrication ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Types of Bridges

Bristol Bridge, Bristol, UK Highway Bridges

Electric Wharf Footbridge, UK London Millennium Footbridge, UK Pedestrian Bridges

The Forth Railway Bridge, Scotland Thames Ditton Railway bridges Railway Bridges

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Types of Bridges

Types of Bridges ,[object Object],[object Object],[object Object],[object Object]

Forces When something pushes down on the beam, the beam bends. Its top edge is pushed together, and its bottom edge is pulled apart. ,[object Object],[object Object],[object Object],[object Object],Types of Bridges

[object Object],[object Object],[object Object],[object Object],Simply supported Cantilever Continuous Types of Bridges

[object Object],[object Object],[object Object],Firth of Forth Bridge, Scotland 521m span Types of Bridges

[object Object],[object Object],[object Object],Types of Bridges

[object Object],[object Object],Suspension Bridges London Tower Bridge (1894),UK Types of Bridges

Types of Bridges ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Which Type Should I Use?

Selection of a Bridge Type by Span Lengths

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Aesthetics : What it means?

[object Object],[object Object],[object Object],[object Object],[object Object],The Four “C’s” of Bridge Aesthetics

[object Object],[object Object],[object Object],[object Object],The Four “C’s” of Bridge Aesthetics

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Qualities of Aesthetic Design

[object Object],[object Object],[object Object],Function

[object Object],[object Object],[object Object],Runnymede Bridge, River Thames (1962) ,[object Object],Proportion

[object Object],[object Object],Athlone Bypass Bridge, Ireland A shallow deck, straight haunches extended into piers and broad ,shallow cutwaters combine to give a strong and distinctive effect. Byker Viaduct, Tall, slender divided piers, straight haunches and a shallow deck. Proportion

[object Object],[object Object],[object Object],[object Object],A9 Dornoch Firth Bridge, Scotland. Constant depth box on simple supports, a low key solution suiting a shallow estuarial crossing. River Camel Viaduct, Wadebridge, Cornwall: Simple constant depth girder viaduct with clean and neat lines. Harmony

[object Object],[object Object],For example, outer spans of this bridge are not the same dimension and the symmetry of the bridge is affected. Order and Rhythm

[object Object],Avon Bridge, M40,Warwick A lack of much detailing gives ‘wallpaper’ effect For Example: When the deck line is not expressed, the scale looks odd due to paucity of detail. Also the coursing of the stone or brick then follow neither the arch, the deck nor the parapet, so invariably it tends to be horizontal. G-Mex bridge, Manchester Metrolink. The steel structure contrasts boldly with its surroundings. Contrast, Texture & Finishes

Establish requirements Setting design objectives and principles Develop design Engineering Process Analysis of design Design Refinement Implementation Plan Understand context

Bridge Design Process Project Scope Location/Survey Final Design Construction Preliminary Design ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Quiz ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Bridge engineering

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