The truss, used for supporting a structure, is loaded as shown in Figure 3. Determine the force in each member. State if the members are in tension or compression. Set Pi = 5kN, P2 = 4kN. Use Method of Joints. Draw the complete FBD of each joint you analyse. P1 P2 Member Force (kN) T or C AD 400 AB 45° 45° 900 DB ВС 1 m DC DE E 1 m 1m Figure 3 1200

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Measuring site work, Excavation and Piling

Bid drawings typically include very little material about the precise requirements of site work operations, measuring site work and excavation work differs from measuring most other works on a construction project. The actual site work conditions are not provided and also the dimensions of the excavations are not known during the pre-construction phase. The precise measurement of the excavation and backfill of the earth material and topsoil is important for a contractor to decide upon the total cost required for the process. All the works should be carried out under OSHA (Occupational Safety and Health Administration) standards to ensure the safety of the workers.