## Question

###### 1- For the Pratt type bridge reinforcement and the load shown in the figure. 1. Determine...

1- For the Pratt type bridge reinforcement and the load shown in the figure. 1. Determine the average normal stress on the BE element, knowing that the element's cross-sectional area is 350 mm^{2}.

Make the free body diagram and explain step by step.

B D 4 m A C E --3---3-- -3m- -3 m 360 kN 360 KN 360 KN Fig. 1

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