B B4809 Pages: 3

r 7.5m ٠

8 93) A three-hinged parabolic arch is loaded as shown in figure. Calculate the location and (15)
magnitude of maximum bending moment in the arch. Draw bending moment
diagram.

‘ 102

‎10m—+—‏ م
بلا بيهل م

‎b) State Eddy’s theorem. (5) 9 a) A three-hinged symmetric parabolic arch has a horizontal span
L and central rise h. (6) It is subjected to a uniformly distributed load of w per unit length along the
span. Show that the shear force and bending moment at any section normal to the profile of arch is
zero. Find also the normal thrust at this section.

‎b) Analyse the three-hinged parabolic loaded arch with supports at different levels as (14) shown.

‎401

‎Yc is ‏سے‎ distance between hinges at A and C −

‎∣∢−∠⇞≤⋯−⊳∣↞−∢≤⋯−≻∣

‎∗∗∗∗

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