Q.1
14 Marks(a)
Explain external stability and internal stability of structures.
(b)
Write the advantages of Three hinge arches over beam.
(c)
Analyze the portal frame shown in figure, and draw shear force and bending moment diagram.
Gujarat Technological UniversitySummer 2026 examination
GTU BE03006011 Theory of Structure Summer 2026 Question Paper & PDF
B.E. · Civil Engineering · Semester 3 · Subject code BE03006011
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 2:30 PM – 5:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Distinguish between plane frame and plane truss.
(b)
Find out SI and KI of following Figures.
(c)
A three hinged parabolic arch of 6m rise and 30 m span is loaded by a a point load of 100 kN at 10 m from left support and an udl of 20 kN/m over right half. Calculate the maximum bending moment on right half span.
OR
(c)
A thin cylindrical shell of internal diameter d, wall thickness is t and length is l, is subjected to internal pressure p. Derive the expression for change in volume of the cylinder.
Q.3
14 Marks(a)
A thin cylindrical shell 1000 mm dia, 5 m long and 8 mm thick is subjected to an internal pressure of 4 MPa, Find the circumferential stress produced if the efficiency of the longitudinal joint is 70 % .
(b)
State and prove Maxwell’s reciprocal theorem.
(c)
A crane chain whose sectional area is 700 mm² carries a load of 10 kN. it is being lowered at a uniform rate of 40 mtr./ min., the chain gets jammed suddenly, at that time the length of the chain unwound is 12 meters. calculate the stress induced in the chain due to sudden stoppage.
OR
(a)
Define conjugate beam. Explain different kinds of a support condition in conjugate beam?
(b)
Define slenderness ratio, radius of gyration and effective length for a long column.
(c)
Using Macauly’s method determine the slope at end A and Deflection under C. For a simply supported beam of span 5 m and loaded as shown in figure. Take EI= 2 x 103 kN.m2.
Q.4
14 Marks(a)
Derive Euler’s Crippling load formula for the long column fixed at both ends.
(b)
Define and explain about Kernel of circular section.
(c)
Find slope and Deflection at C for the beam as shown in figure.
OR
(a)
Define Influence line diagram and write the uses of it.
(b)
Explain various Stability checks for a dam.
(c)
A T -section as shown in figure. The thickness of flange and web is 10 mm. The length of column is 5 m and it is hinged at both ends. If E = 2 x 105 N/mm² , Find Eular’s load.
Q.5
14 Marks(a)
Define axial load , Eccentricity and Eccentric load.
(b)
A rectangular body 600 mm long, 100 mm wide and 40 mm thick is subjected to a a shear stress of 75 MPa. Find out the strain energy stored in it. Take G= 84 GPa.
(c)
A retaining wall of rectangular section 3 m wide and 7 m height . it retains earyth up to full height. Check the stability for tension in base and for sliding. Take density of soil = 16 kN/m³ , density of wall material = 25 kN/m³ . angle of repose = 30 degree and poisson ratio = 0.5 .
OR
(a)
Explain about Principal of Superposition.
(b)
Discuss strain energy due to flexure in beam.
(c)
A rectangular block is subjected to a direct tesnsile stress of 800 N/mm² along with a shear stress . determine the shear stress if major principal stress not to exceed 1200 N/mm². (Tensile) . Also find the minor principal stress.
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About this paper
Official Gujarat Technological University (GTU) examination paper for Theory of Structure (Summer 2026, B.E. · Civil Engineering, Sem 3). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.