Firstranker's choice
Seat No.: Enrolment No.
--- Content provided by FirstRanker.com ---
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-V (OLD) EXAMINATION - WINTER 2018
Subject Code:150605 Date: 27/11/2018
Subject Name: Structural Analysis - II
Time: 10:30 AM TO 01:00 PM Total Marks: 70
--- Content provided by FirstRanker.com ---
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
Q-1 (a) Explain type of domes with neat sketches and state their uses. 7
--- Content provided by FirstRanker.com ---
(b) Differentiate between stiffness method and flexibility method. 7
Q-2 (a) A beam in plan has radius of 8m and is supported at equally spaced 8 supports. It is loaded by a UDL of 40 KN/m. calculate the maximum values of bending moment and shear force. 7
(b) Give the properties of flexibility and stiffness matrix. 7
OR
(b) Define the following terms: 7
--- Content provided by FirstRanker.com ---
Dome, Shape factor, Load factor, collapse load, Plastic hinge, Released structure, Restrained structure.
Q-3 (a) State and explain the basic assumptions made in the plastic theory. 7
(b) For the beam section shown in figure-1, determine the shape factor and the fully plastic moment. Take fy=250 MPa. 7
OR
Q-3 (a) Calculate the shape factor for the hollow rectangular section having outer dimension 300 mm x 150 mm and thickness 10mm. 7
--- Content provided by FirstRanker.com ---
(b) State and explain static theorem and kinematic theorem of plastic theory. 7
Q-4 (a) Differentiate between straight beam and curved beam.
(b) A roof of a hall having diameter 20 m is to be covered by a conical dome of 100 mm thickness and 4 m rise. Assuming live load and other loads as 1.5 KN/m², calculate stresses in the dome. 7
OR
Q-4 (a) Derive an expression for My and T for a curved beam fixed at the ends.
--- Content provided by FirstRanker.com ---
(b) A spherical dome with a span of 15m and central rise of 3m has all inclusive load of 10 KN/m². Calculate all the stresses at the mid height. 7
Q-5 (a) Find the matrices: [Ap] , [ApL] , [S] and [D] with usual notations for the beam shown in Figure-2, using Stiffness method. 7
(b) Find the matrices: [Dq], [DqL] , [F] and [Q] with usual notations for the beam shown in Figure-2. Use Flexibility method assuming vertical support reaction at B (Rg) and vertical support reaction C (Rc) as redundant. 7
OR
Q-5 (a) Derive the Flexibility Matrix [F] for the beam shown in Figure-3, assuming vertical reactions at supports B, C and D as redundant. 7
--- Content provided by FirstRanker.com ---
(b) Derive the Stiffness matrix [S] for the beam shown in Figure-3. 7
100mm
Figure: 1
--- Content provided by FirstRanker.com ---
60 kN/m 60 kN/m
A B C
4m 4m 4m
Figure: 2
A B C D
--- Content provided by FirstRanker.com ---
4m 4m 4m
Figure: 3
2
--- Content provided by FirstRanker.com ---
This download link is referred from the post: GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University