GTU Civil Engineering (Semester 7)
Advanced Structural Analysis
December 2014
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 Analyse the beam shown in fig.1 using stiffness member approach. In addition to loading consider effect due to sinking of support at B by 4 mm.

14 M

2 (a) Enlist different loading facilities available in the structural analysis professional software that you have learned. Explain assignment of floor loading facilities in detail.
7 M
2 (b) What is discretization? Explain how discretization is done in finite element analysis?
7 M
2 (c) Determine the shape functions for the Constant Strain Triangle.
7 M

3 (a) Analyze the frame for fig.2 by stiffness matrix method using member approach.

14 M
3 (b) Find the displacements for the pin jointed truss shown in the fig.3 using stiffness member approach. Adopt cross sectional area of all members = 900 mm2 and E=200 kN/mm2.

7 M
3 (c) Determine the elements of the stiffness matrix for a grid member.
7 M

4 (a) Analyze the assembly of bars shown in the fig.4 using FEM. Plot the variation of displacement, stress and strain along the length.

14 M
4 (b) Analyse the beam shown in fig.5 using FEM. Plot SF & BM diagrams.

14 M

5 (a) What is preprocessing and post-processing? Enlist different pre and post processing facilities available in the structural analysis professional software you have learned.
7 M
5 (b) Explain symmetry and anti-symmetry . Sketch at least one beam, one plane truss and one plane frame having symmetry and anti-symmetry.
7 M
5 (c) Prepare an input file matrix.in to store data of n x n size SFF-1 matrix and column vector A FC. Prepare C or C++ program to read above data and containing function capable to handle the multiplication of these matrices and store result as D F vector. Write sample input file.
14 M



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