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subject categories
engineering
civil engineering
october 2021
12

Civil Engineering Questions and Answers October 12, 2021

Expert-verified solutions to help you succeed

For the truss structure given below, determine the joint displacements asked for by using Virtual Work. Give displacements in terms of A and E. Member AE has three times the crosssectional area (34) of all the other members. Member BE has onequarter the modulus of elasticity (E4) of all the other members. Displacements ABX, AEX, ADY, AEY, AFX 30

Consider the frame shown in the next figure under the given external lateral loads. The sign convention for a positive moment in the columns is illustrated. a. Calculate the axial forces for the columns (only) using the cantilever method, assuming that interior columns are 50% bigger (bigger cross-sectional area) than exterior columns. b. What is

100 kips A E 15 feet B F G H TI 12 feet 8 feet i D 10 feet

A shortbraced column in which feu 30 Nmm and fy 500 Nmm is required to support an ultimate axial load of 2000 kN. Determine a suitable section for the column assuming that the area of longitudinal steel. Ase, is of the order of 3 per cent of the gross crosssectional area of (15 Marks) column. Acol.

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