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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