Bridge Construction (2)

BRIDGE CONSTRUCTION

BASIC METHODS

K.MAHESHKUMAR,B.E CIVIL-II,SVCET.

Contents

Definition Types of Bridge How To Estimate The Cost Of Bridge

Construction Design the Bridge Gather the Materials Build the Bridge Advantages Disadvantages. Conclusion.

Definition of bridge

A bridge is a structure providing passage over an obstacle without closing the way beneath. The required passage may be for a road, a railway, pedestrians, a canal or a pipeline. The obstacle to be crossed may be a river, a road, railway or a valley.

In other words, bridge is a structure for carrying the road traffic or other moving loads over a depression or obstruction such as channel, road or railway.

A bridge is an arrangement made to cross an obstacle in the form of a low ground or a stream or a river without closing the way beneath.

Types of bridges

Arch bridges Beam bridges Truss bridges  Cantilever bridges  Tied arch bridges  Suspension bridges  Cable-stayed bridges  Temporary bridges 

Basic types

Cantilever Bridge

Suspension bridges

How To Estimate The Cost Of Bridge Construction: Types and methods Of measurements

Specific Factors in Takeoff and Pricing

Geographic location

Overview of Labor, Material, Equipment, Indirect Cost and Approach to Markus

Special Risk Considerations

Design the Bridge

Piller design

Cantilever bridges design

Gather the Materials Natural materials

Wood

Stone

Concrete and Steel

Advanced materials

We want to consider material • Weight

• Drying Time

• Strength

• Cost

SHORT VIEW

Advantages Car Traffic  Pedestrian Double-decked  Train bridges Pipelines Viaducts Commercial bridges 

Disadvantages:

When the soils beneath a footing are not capable of supporting the weight Of the structure above the soil, bearing failure occurs. The foundation Shifts or sinks under the load, causing structure movement and damage

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