A truck is travelling from Hamar and crossing a bridge with length of 36 m as shown in Figure below. Assume the truck ca
Posted: Thu Jul 14, 2022 2:59 pm
A truck is travelling from Hamar and crossing a bridge with length of 36 m as shown in Figure below. Assume the truck can travel in either direction along the centre of the deck, so that 21 of the load shown is transferred to each of the two side trusses. Using appropriate method: (Show the calculation) A) Construct influence line for force in members KD \& KC of the bridge truss and compute the maximum live force (tension and compression) that can be developed in both members due to a moving 18−kN truck shown in Figure below. B) Predict the stability of bridge structure if one member is added a joint I and connected to joint F (becoming member IF). Can the influence line be drawn and give the suitable method used to analyse the structure? Check the stability then do justifications to the answers. (35 m)