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Triangels are the strongest shape so make a triple triangle design i aced it that way
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The plank bridge is the weakest as it is just a simple beam with no central support or stiffening for the span. The other two can be designed to comparable strength for a given span, but work in somewhat different ways: the truss bridge acts as a beam stiffened by the truss frames, the arch transmits the forces from the centre to its abutments.
What else can I help you with?
Are truss bridges strong for their weight?
Yes they are
Why are suspension bridges used for long spans?
The longest bridges in the world are viaducts or trestle bridges. It is easier to design a high, elevated roadway by directly supporting it with many towers or piers (as in a viaduct or trestle bridges). It is more difficult to design an elevated roadway with a large unobstructed span (as in a suspension bridge or arch bridge). However, the bridges with the longest unobstructed spans in the world are invariably suspension bridges, because ...
How long is a suspension bridge?
There are many different lengths of suspension bridges.
Are arch bridges better that beam bridges?
arch bridges can support more weight than beam bridges but for price i say beam won.
Why is iron used in building bridges?
Because steel is stronger than wood. But I'm not sure steel is stronger than metal, but steel is a metal and a pretty tough one.
What makes bridges towers strong?
the cements,bricks and glasses makes bridges towers strong
What was the problem with iron bridges?
they were not as strong
What was problem with iron bridges?
they were not as strong
Are truss bridges strong for their weight?
Yes they are
How did the bridges of Paris almost get destroyed?
strong wind from cyclops
Where are suspension bridges most commonly used?
i dont know but its strong
Why do you have truss bridges?
Truss bridges are lighter than beam girder bridges. They take up more height but are strong and carry loadd in tension and compression rather than bending.
What is the major drawback of continuous span bridges?
the fact that you have to connect the two bridges and then the beams will need more support in order to stay strong.
What are some advantages of truss bridges?
It is light weight but it is strong because of the open.
What are the benefits of truss bridges?
Economical, easy to construct and repair, very strong.
Are bridges strong?
well i really depends on how old the bridge is. the older it is the weaker it is.
Can truss bridges with stand a tornado?
To a limited degree, yes. However, very strong tornadoes will destroy just about any structure they hit, including truss bridges.
