A three-hinged symmetric parabolic arch is hinged at the springing and at the crown. The span and rise are 40 m and 10 m respectively. The left half of the arch is loaded with U.D.L. of 3 . The horizontal thrust at the springings will be

A three-hinged symmetric parabolic arch is hinged at the springing and

1.	A three-hinged symmetric parabolic arch is hinged at the springing and at the crown. The span and rise are 40 m and 10 m respectively. The left half of the arch is loaded with U.D.L. of 3 . The horizontal thrust at the springings will be
A.	15
B.	20
C.	30
D.	40
Answer» D. 40

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A three-hinged symmetric parabolic arch is hinged at the springing and at the crown. The span and rise are 40 m and 10 m respectively. The left half of the arch is loaded with U.D.L. of 3 . The horizontal thrust at the springings will be

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