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they are symmetrically designed to help support the stability of the bridge. this is so that the weight is even n both sides. For example when you alliance a ruler on your finger you need to find its line of symmetry so that its weight is even on both sides. If you do not put your finger on its center of gravity the ruler is sure to tip.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoNot just for structural integrity, but also for visual aesthetics. It is more pleasing to the eye.
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Why beam bridges were built?
Beam Bridges were built to make longer and more durable bridges.
What type of bridges were built using the truss design?
arch bridges
What are bridges built from?
Bridges can be built of many different materials including stone, concrete, wood and metals.
Why are the Romans remembered for their skill in engineering?
bridges, they built bridges and other things
What are pontoon bridges used for?
They are often built by military engineers to cross rivers where there are no bridges.
Are all bridges built over water?
No. Bridges can span any gap in the terrain.
What actors and actresses appeared in The Bridges That Built London - 2012?
The cast of The Bridges That Built London - 2012 includes: Dan Cruickshank as Himself - Presenter
How have bridges impacted society?
There are different types of bridges. There are bridges that have been built to ease traffic congestion in large cities; bridges have been built across rivers and the ocean to allow cars and trucks to travel from one place to another; bridges have been built to allow pedestrians to pass over highways safely. Bridges link places, so people are able to travel with ease between places. Goods can be carried on bridges and therefore trade is made possible.
What bridges were most common when they were first being built?
The early bridges that were built by early man were the log bridge. That is a a log was thrown across a river to cross.
Are bridges manmade?
Most bridges are manmade, built in the location where they are required. Some natural bridges of rock or timber exist in wilderness areas.
How are bridges classified?
Bridges are classified by 3 criteria: material, structure, and construction method. Materials include steel, reinforced concrete, and stone. Bridge structures often seen range from cable suspension bridges to simple arch bridges. Bridges built with the cantilever effect are usually suspension bridges, and are supported only on one side until completion, whereas bridges built via the incremental launch method are built pieces at a time, with regular supports to the ground at each segment.
Who built the harbor bridges?
sir john halberstine
