Beam bridges 1rb

BEAM BRIDGES

Ivan Serradell, Carlos Ionut, Josep Fontanet and Joan Calvet

CONTENTS  INTRODUCTION

 DESIGN

OF A BEAM BRIDGE

 PROS

OF BEAM BRIDGES

 CONS

OF BEAM BRIDGES

 COMPRESSION  CAUSEWAY

AND TENSION

BRIDGE

INTRODUCTION ď ľ Beam

bridges are the oldest known bridges and tend to be the simplest to design and build. ď ľ Roughly half of all bridges in the United States are beam bridges.

DESING OF A BEAM BRIDGE  They

consist of vertical piers and horitzontal beams.

A

beams bridge’s strenght depends on the strenght of the roadway and can be increased by adding additional piers.

 While

beam bridges can be quite long, the span, or distance between adjacent piers, is usually small.

Vertical piers

Horizontal beams

PROS OF BEAM BRIDGES 

Easy to build.



Inexpensively relative to bridge types.



other

Used widely in urban and rural setting.

CONS OF BEAM BRIDGES 

Limited span.



It does not allow large ships or heavy boat traffic to pass underneath



Its design generally not considered very interesting or eye-catching.

COMPRESSION AND TENSION 

COMPRESSION

As live loads, such as cars and trucks, travel cross the bridge, the force of compression acts on the top of the roadway and passes down into the piers. 

TENSION

The force of tension acts on the underside of the roadway , which is pulled Apart by the live loads pressing down on the top of the roadway.

CAUSEWAY BRIDGE 

It is the longest beam bridge in the world.



It is located in the lake Pontchartrain in Lousiana, United States of America.



It is 38,35 km long.



It opened to public in 1956.

the

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