Question: STR 411 Assignment 2 8 L : aldytos darovs 1 X TANDEMUS UAB Tandemus Atidaryti Question A simply supported girder bridge is to support

STR 411 Assignment 2 8 L : aldytos darovs 1 X TANDEMUS

STR 411 Assignment 2 8 L : aldytos darovs 1 X TANDEMUS UAB Tandemus Atidaryti Question A simply supported girder bridge is to support vehicular loads. It is anticipated that the worst load will come from a three-axle truck shown in Figure I below. Assuming the self-weight of the girder bridge is 30 kN/m; (a) Determine the influence line for the following: i. Reactions at A and B ii. Moment at mid span iii. Shear force at 3 m to the right of support A (b) Using appropriate influence line established in question (a), above, determine i. Maximum reactions at A and B ii. Maximum mid span moment iii. Maximum positive shear at 3 m right of A (c) Determine the absolute maximum moment and shear in the simply supported bridge girder 20 kN 40 kN 25 kN m 1.5 m a -12 m Figure 1 B

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