Question

While constructing buildings and bridges, a pillar with distributed ends is preferred to a pillar with rounded ends. Why?

Answer 1

have you seen a big complex or bridge ? How it becomes stable and suitable to tolerate weight of thousands of people . of course, you are thinking about columns or pillar.

Uses of pillars or columns is also very common in buildings and bridges. A pillar With rounded ends as shown in figure (a) , supports less load than that with a disturbed shape at the ends as shown in figure (b) .

The precise design of a bridge or a building has to take into account the conditions under which it will function, the cost and long period, reliability of usable materials.