Beam bridgesBeam bridges are generally used to cross relatively short distances (usually less than 250 feet) because unlike other types of bridges, they have no built-in supports. The only supports are provided by piers. The farther apart the supports, the weaker a beam bridge gets.
What type of bridge is used for short distances?
The simplest beam bridges span short distances, while fragile-looking suspension bridges span the longest crossings.
Which type of bridge is economical?
In general, the most cost effective bridge design is the truss bridge, which is made up of triangles. Though it comes with its trade offs : it is high maintenance and may not be as effective as other bridges.
What is the cheapest type of bridge to build?
A beam bridge is one of the simplest and most cost-effective bridges to build.
What type of bridge is most efficient?
What are the disadvantages of swing bridges?
The main disadvantages of a swing bridge are the comparatively long time required for swinging from the traffic to the shipping position, and the large plan area required to accommodate the structure when opened for shipping; once swung, of course, it has the advantage that the vertical clearance ("air draught") is