A two-storey apartment building designed by Engr. Sang Woo has a brace system of main structural member shown in the figure. Considering that the bars are stressed - free the time it was assembled at 25°C. Determine the normal stresses in MPA of rods given that: Aluminum (2) E= 70 GPa a = 24.5 x10 */ C Ø = 17mm Bronze (1) E= 100 GPa a = 17.2 x10 * / °C Ø = 25mm 350 mm Note: After assembly it has been observed that the bronze rod 250 mm temperature remains the same while aluminum rod decreased by 45°C. Round off your answers to nearest whole number 200 mm (2) 500 mm

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Design of structures using FEA

An arrangement, in which various members are interconnected with their constrained relative motion, the whole arrangement is then known as a structure. The degree of freedom of such a structure is zero. In such a structure, the load can act throughout the length of the structure or at the joints.