Why are triangles used in bridges?
Why are triangles used in bridges? Truss bridges often use equilateral and isosceles triangles to distribute weight because the equal angles allow forces to spread evenly across the bridge. Triangles are one of the best shapes for distributing weight because they take force from a single point and distribute it across a wide base.
How is a truss bridge built?
In a truss bridge, two long – usually straight members known as chords – form the top and bottom; they are connected by a web of vertical posts and diagonals. The bridge is supported at the ends by abutments and sometimes in the middle by piers.
Why a truss bridge is the best?
While truss bridges are great for short spans, what makes them versatile is their ability to go long distances and still support large loads. With the polygonal design of the truss, it’s possible to cover long distances. In particular, truss bridges can be needed in areas with extreme weather.
