There are more than a half million bridges in use across the United States; the beam bridge is made up of a horizontal beam that is supported at each end by piers. The weight of the beam pushes straight down on the piers; the farther apart they are, they weaker the beam becomes which is why these bridges rarely span more than 250 feet.
Bridges have been constructed by humans since ancient times, with initial designs being extremely simple, such as a tree placed over a stream or a river. With the advancement of civilization, other methods were discovered based on using rock, stone, mortar and other materials to create longer and stronger bridges such as the Roman techniques that included the driving of wooden poles at the intended location of bridge columns which were filled in with various construction materials. Following the industrial revolution, the introduction of stronger materials was used such as steel replacing wrought iron.
Beam bridges are the simplest of the four types bridges built today, beam, arch, cantilever and suspension. It is strong as well as economical. Due to its simple design, this bridge is the most common of all throughout the world, generally used to span shorter distances and common found along local roads.
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From bridges and other tricky projects, Shelter Structures offers affordable design solutions, including fabric covered buildings which can be utilized for even the largest and most challenging projects.