GTU BE/B.Tech 2019 Winter Question Papers || Gujarat Technological University
Seat No.:
Enrolment No.
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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- V (New) EXAMINATION - WINTER 2019
Subject Code: 2150610
Subject Name: Advanced Structural Analysis
Time: 10:30 AM TO 01:00 PM
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Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.1 | (a) Define: 1. Flexibility 2. Stiffness 3. Shape Factor. | 03 |
| (b) Enlist advantages and disadvantages of plastic design. | 04 | |
| (c) Differentiate between stiffness method and flexibility method. | 07 | |
| OR | ||
| Q.1 | (a) Explain in brief the methods of Plastic analysis. | 03 |
| (b) Calculate the shape factor for the section shown in Figure no.1. | 04 | |
| (c) A spherical dome with a span of 10 m and central rise of 2 m has a shell which is 120mm thick. The wind load on the dome is estimated to the equivalent to 1.2 kN/m². Estimate stresses in the dome. | 07 | |
| Q.2 | (a) Derive the formula for Mp required for the propped cantilever beam loaded by a collapse uniformly distributed load of We kN/m. | 03 |
| (b) Explain any two types of skeleton structures with their internal forces and deformations. | 04 | |
| (c) Explain. Meridian stress & Hoop stress. | 07 | |
| OR | ||
| Q.2 | (a) Analyse the frame shown in figure no.2 and draw B.M. diagram. EI= constant. | 03 |
| (b) Explain Domes and write application of it. | 04 | |
| (c) 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? | 07 | |
| Q.3 | (a) Analyse the typical spherical dome subjected to point load at crown. | 03 |
| (b) Derive equation of collapse load for the propped cantilever beam subjected to uniformly distributed load. | 04 | |
| (c) 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. | 07 | |
| OR | ||
| Q.3 | (a) Derive equations of shape factor of (i) Circular section (ii) Square section. | 03 |
| (b) Derive the equation of collapse load for the propped cantilever beam subjected to central point load. | 04 | |
| (c) State and explain in brief various collapse mechanism of a frames in plastic theory with neat diagrams. | 07 | |
| Q.4 | (a) Find the collapse load for a fixed beam of span L and subjected to an UDL of w/unit length using static method and kinematics method. | 03 |
| (b) Differentiate between Force Method and Displacement Method of Analysis. | 04 | |
| (b) Explain Equations of static Equilibrium. | 04 | |
| (c) Find the shape factor and plastic moment capacity of a Tee section with a Flange 100X12 m and web 180X10 mm, Assume fy=250 MPa. Also find collapse load if it is used for a simply supported span 3m. | 07 | |
| OR | ||
| Q.5 | (a) Explain term load factor. | 03 |
| (b) A continuous steel beam consists of three equal spans 10m each carrying an u.d.l. of 50 kN/m under working conditions. Determine fully plastic moment required for the beam. Take load factor =1.7 assume uniform beam section. | 04 | |
| (c) An ISLB 300 section is used as a simply supported beam of span 5m. find the shape factor of the beam section. If the beam carries a point load of 80kN at mid span, find the load factor. Take fy=250 N/mm². | 07 |
Date: 25/11/2019
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Total Marks: 70
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