The truss structure in Figure P8.82 represents part of a bridge. Assume that the structural components are connected by pin joints and that the entire structure is free to slide horizontally at each end. Assum furthermore that the mass of the structure is negligible compared with the load it must support. In this situation, the force exerted by each of the bars (struts) on the pin joints is either a force of tension or one of compression and must be along the length of the bar. Calculate the force in each strut when the angle = 30° and the bridge supports a w = 9100 N load at its center. Strut AB N of -Select-- v Strut AC N of -Select-- V Strut BC N of -Select-- Strut BD N of -Select- v Strut CD N of -Select-- V Strut CE N of Select-- v Strut DE N of -Select-- Load: weight WD 0 9 G 50 m

Question 4(a) The uniform bar shown in Figure 4 weighs 428 N. It is supported by a pin at A and a cable that runs around the pulley, D. It is subjected to a uniformly distributed load of 17.7 N/m and 12.5 Nm clockwise moment at E. Beam is in equilibrium position as shown in the Figure. Take a = 0.41 m and b = 2.5 m. Determine the tension in the cable and the reaction force at A, both in Newtons. w N/m 75° A ▼▼ ▼ ▼ 12.5 Nm B E 1 m 0.5 m m b Figure 4 Question 4(b) Find a truss from your neighborhood where you can take a photo safely. It does not have to be taken from the perfect angle and as long as we can see the complete truss that is good enough. One photo would be ideal but upto 3 photos can be used. Include these photos in your solutions for this question and based on these photos draw this 2D truss (exact dimensions are not required) with the supports too. Comment on the possible loads and their locations that may be applied to the truss. Discuss the assumptions that you have to…

Force in AD:                 Force in CE:                  Force in CF:Force in FH:                 Force in GI:                   Force in IJ:

How do i solve the attached trusses/civil engineering problem?