A symmetrical 3 hinged parabolic arch of span L and rise h carries a uniformly distributed load of w per unit length along the entire span.
Which of the following is correctly matched.1
Horizontal thrust is \(\frac{{w{L^2}}}{{8h}}\)
2
Bending moment at crown is \(\frac{{w{L^2}}}{8}\)
3
Bending moment at crown is 0
4
Vertical reaction at supports is wL/2