GTU BE 2019 Summer Question Papers || Gujarat Technological University
Subject Code: 2150610
Subject Name: Advanced Structural Analysis
Time: 02:30 PM TO 05:00 PM
Seat No.:
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER-V (NEW) EXAMINATION - SUMMER 2019Subject Code: 2150610
Subject Name: Advanced Structural Analysis
Time: 02:30 PM TO 05:00 PM
Instructions:
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- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.1 | (a) Write the steps of Flexibility method of analysis. | 03 |
| (b) Explain term collapse load. | 04 | |
| (c) Differentiate between stiffness method and flexibility method. | 07 | |
| Q.2 | (a) Write the steps of Stiffness method of analysis. | 03 |
| (b) Calculate the shape factor for the section shown in Figure no.1. | 04 | |
| (c) Explain types of domes with neat sketches and state their uses. | 07 | |
| OR | ||
| (c) Analyze the typical spherical dome subjected to point load at crown. | 07 | |
| Q.3 | (a) A propped cantilever beam has a uniform section, span l and flexural rigidity EI. What is the stiffness coefficient corresponding to rotation of the propped end? | 03 |
| (b) For a given beam shown in figure no.2'that F and S matrices are reciprocal to each other or prove that FXS= unit matrix. | 04 | |
| (c) Explain with neat sketches “Stresses generated in Conical Dome”. | 07 | |
| OR | ||
| (a) Explain in brief the methods of Plastic analysis. | 03 | |
| (b) List the essential features of stiffness methods. | 04 | |
| (c) Analyze the frame shown in figure no.3 and draw B.M. diagram. EI= constant. | 07 | |
| Q.4 | (a) Define the flexibility coefficient fij and stiffness coefficient sij. | 03 |
| (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/m?, calculate stresses in the dome. | 04 | |
| (c) A spherical dome with a span of 15 m and central rise of 3 m has all inclusive load of 10kN/m?. Calculate all the stresses at the mid height. | 07 | |
| OR | ||
| (a) Differentiate between Force Method and Displacement Method of analysis. | 03 | |
| (b) An ISLB 300 section is used as a simply supported beam of span 5 m. find the shape factor of the beam section. If the beam carries a point load of 80 kN at mid span, find the load factor. Take fy=250 N/mm?. | 04 | |
| (c) A spherical dome with 20 m span and 6 m central rise has an opening of 4 m horizontal diameter at top. If all inclusive udlof 6 kN/m? is acting on it, calculate the maximum value of hoop tension/compression in top and bottom ring beams. | 07 | |
| Q.5 | (a) State basic assumptions made in the “Plastic theory”. | 03 |
| (b) Calculate the shape factor for a square section arranged as diamond shape having size of 100 mm and x axis passing through one of the diagonals. | 04 | |
| (c) Analyze the beam ABC fixed at A and supported on rollers at B and C, as shown in figure no.4 EI for each span is indicated in the figure | 07 | |
| OR | ||
| (a) Explain term load factor. | 03 | |
| (b) Enlist advantages and disadvantages of plastic design. | 04 | |
| (c) A fixed beam of 6 m span carried a uniformly distributed load of 175 kN/m over the left half of the span. Determine the fully plastic moment for the beam. Also calculate plastic section modulus required. fy=250MPa. | 07 | |
Enrolment No.
Date: 06/06/2019
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Total Marks: 70
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