Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 5th Sem Old 150605 Structural Analysis Iii Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (Old) EXAMINATION ? WINTER 2019
Subject Code: 150605 Date: 25/11/2019
Subject Name: Structural Analysis - III
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Explain with neat sketches the various mechanism of failure of plane frames in
plastic analysis.
07
(b) Derive an expression for Meridional stress and Hoop stress develop in a spherical
dome subjected to UDL.
07
Q.2 (a) Find collapse load of fixed beam having length ?L? and subjected to point load
?W? acting at a distance ?a? from left support and distance ?b? from right support
by static method and kinematic method.
07
(b) Explain type of domes with neat sketches and state their uses. 07
OR
(b) Explain technical aspects of difference between curved beam and usual beam. 07
Q.3 (a) State the assumptions of Plastic theory. 07
(b) Derive formula of F?, M? and T? at any section, for the quarter circular cantilever
beam curved in plan, subjected to uniformly distributed load w per unit run
throughout its length, with usual notations.
07
OR
Q.3 (a) State uses of domes and beams curved in plan. 07
(b) Differentiate between stiffness method and flexibility method. 07
Q.4 (a) Analyze the beam shown in fig. 1 using stiffness method. 07
(b) State and explain static and kinematic theorem of plastic analysis. 07
OR
Q.4 (a) List and explain the stresses in spherical dome. 07
(b) Analyze the frame as shown in fig.2 by stiffness method and determine support
moments only.
07
Q.5 (a) Analyze the beam as shown in fig.3 by flexibility method and determine moment
at support A & B.
07
(b) Determine collapse load for a frame as shown in fig.4 by kinematic method. 07
OR
Q.5 (a) The conical dome has following details.
1) Span of Dome = 18 m
2) Rise = 3.0 m
3) LL or WL = 1.5 kN/m
2
4) Thickness of Dome = 100 mm.
Calculate maximum meridional thrust and hoop force in the dome.
07
(b) A beam is quarterly curved in plan forming an arc of circle with radius 4.0 m.
The beam carries LL of 2.0 kN/m and having 300 mm x 600 mm cross section.
Draw SF, BM and TM. Take G = 0.4E for concrete.
07
*************
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (Old) EXAMINATION ? WINTER 2019
Subject Code: 150605 Date: 25/11/2019
Subject Name: Structural Analysis - III
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Explain with neat sketches the various mechanism of failure of plane frames in
plastic analysis.
07
(b) Derive an expression for Meridional stress and Hoop stress develop in a spherical
dome subjected to UDL.
07
Q.2 (a) Find collapse load of fixed beam having length ?L? and subjected to point load
?W? acting at a distance ?a? from left support and distance ?b? from right support
by static method and kinematic method.
07
(b) Explain type of domes with neat sketches and state their uses. 07
OR
(b) Explain technical aspects of difference between curved beam and usual beam. 07
Q.3 (a) State the assumptions of Plastic theory. 07
(b) Derive formula of F?, M? and T? at any section, for the quarter circular cantilever
beam curved in plan, subjected to uniformly distributed load w per unit run
throughout its length, with usual notations.
07
OR
Q.3 (a) State uses of domes and beams curved in plan. 07
(b) Differentiate between stiffness method and flexibility method. 07
Q.4 (a) Analyze the beam shown in fig. 1 using stiffness method. 07
(b) State and explain static and kinematic theorem of plastic analysis. 07
OR
Q.4 (a) List and explain the stresses in spherical dome. 07
(b) Analyze the frame as shown in fig.2 by stiffness method and determine support
moments only.
07
Q.5 (a) Analyze the beam as shown in fig.3 by flexibility method and determine moment
at support A & B.
07
(b) Determine collapse load for a frame as shown in fig.4 by kinematic method. 07
OR
Q.5 (a) The conical dome has following details.
1) Span of Dome = 18 m
2) Rise = 3.0 m
3) LL or WL = 1.5 kN/m
2
4) Thickness of Dome = 100 mm.
Calculate maximum meridional thrust and hoop force in the dome.
07
(b) A beam is quarterly curved in plan forming an arc of circle with radius 4.0 m.
The beam carries LL of 2.0 kN/m and having 300 mm x 600 mm cross section.
Draw SF, BM and TM. Take G = 0.4E for concrete.
07
*************
2
Fig.1 (Q.4 a)
Fig.2 (Q.4 b OR)
Fig.3 (Q.5 a)
Fig.4 (Q.5 b)
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This post was last modified on 20 February 2020