QUESTION 3 The beam of building structure (Fig. 3a) is made of mild steel I-section beam...

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QUESTION 3 The beam of building structure (Fig. 3a) is made of mild steel I-section beam with 80mm deep and 60mm wide as shown in Fig. 3b. The beam is bolted (simply supported) onto the girder on both side over a span of 1.0 m. The loading from deck is expected to transfer onto the beam as the form of uniform distributed load, w. The material is to be treated as elastic-perfectly plastic, with yield strength of 240 MPa, and elasticity modulus of 200 GPa. Girder Beam 4147 HI! 60 80 (a) (b) Fig. 3: (a) The building structure and (b) cross-sectional dimension of I-section beam a) Find out the shape factor of the beam. (4 mark) b) Find out the magnitude of uniform distributed load, w the beam could sustain for it to have at least 60mm of elastic core depth. (6 mark) QUESTION 3 The beam of building structure (Fig. 3a) is made of mild steel I-section beam with 80mm deep and 60mm wide as shown in Fig. 3b. The beam is bolted (simply supported) onto the girder on both side over a span of 1.0 m. The loading from deck is expected to transfer onto the beam as the form of uniform distributed load, w. The material is to be treated as elastic-perfectly plastic, with yield strength of 240 MPa, and elasticity modulus of 200 GPa. Girder Beam 4147 HI! 60 80 (a) (b) Fig. 3: (a) The building structure and (b) cross-sectional dimension of I-section beam a) Find out the shape factor of the beam. (4 mark) b) Find out the magnitude of uniform distributed load, w the beam could sustain for it to have at least 60mm of elastic core depth. (6 mark)