Gujarat Technological UniversitySummer 2023 examination

GTU 3150612 Design of Structures Summer 2023 Question Paper & PDF

B.E. · Civil Engineering · Semester 5 · Subject code 3150612
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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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16 of 25 questions on this paper were also asked in other years. 4 more are types of question GTU sets again with new data. Each is marked below with the years it appeared.See all 27 repeated 3150612 questions, most asked first

Q.1

14 Marks
(a)
3 marks

Differentiate the limit state method and working stress method of design for Steel structures.

(b)
4 marks
Define
1)Characteristic load
2)Characteristic strength
3)Clear cover
4)Effective cover
(c)
7 marksSame type asked in 4 of 6 papers

Calculate the moment of resistance of a beam section 230 mm X 460 mm effective depth reinforced with 2 Nos 16 mm diameter bars as compression reinforcement at an effective cover of 40 mm and 4 Nos 20 mm diameter bars as tension reinforcement Use grade M20 and Fe

500

Also asked in Winter 2025 Q1c, Summer 2024 Q1c, Winter 2023 Q2b

Q.2

14 Marks
(a)
3 marksAsked in 4 of 6 papers
What does 4 and 6 imply for bolts of grade 4.6?

Also asked in Summer 2026 Q4a OR, Summer 2025 Q2a, Summer 2024 Q2a

(b)
4 marksAsked in 2 of 6 papers

Define Under-reinforced section, Balanced section and Over- reinforced section.

Also asked in Winter 2023 Q1c

(c)
7 marksSame type asked in 4 of 6 papers

Calculate the strength of a 20 mm diameter bolt of grade 4.6 for the Lap joint. The main plates to be jointed are 12 mm thick.

Also asked in Summer 2025 Q2c, Summer 2024 Q2c, Winter 2023 Q3b OR

(c)
7 marks

A short column of size 300 mm X 450 mm is subjected to factored load of 2000 kN. If the unsupported length of column is 4.2 m, Calculate (a) the design moments due to minimum eccentricity. If the above column is subjected to (b) Mux = 100 kN-m or (c) Muy = 30 kN-m, Find design loads and moments.

Q.3

14 Marks
(a)
3 marksAsked in 4 of 6 papers
Differentiate the lap and butt joint with neat sketches.

Also asked in Winter 2025 Q3a OR, Summer 2025 Q3a, Winter 2023 Q4a OR

(b)
4 marksAsked in 2 of 6 papers
Draw neat sketch of gusseted based foundation.

Also asked in Summer 2026 Q5b

(c)
7 marksAsked in 2 of 6 papers

Select a suitable angle section to resist a factored tensile force of 200 kN assuming single row of 16 mm bolts. Take yield stress fy= 250 N/mm² and ultimate stress of 410 N/mm².

Also asked in Summer 2024 Q3c

(a)
3 marksAsked in 3 of 6 papers
Define
i)Gauge
ii)Pitch
iii)slenderness ratio

Also asked in Winter 2025 Q3a, Summer 2025 Q3a OR

(b)
4 marksAsked in 4 of 6 papers

Plot neat sketch of stress-strain curve of concrete and steel with stress block parameters adopted by IS: 456-2000 and IS 800-2007.

Also asked in Winter 2025 Q3b OR, Summer 2025 Q3b OR, Summer 2024 Q3b OR

(c)
7 marksAsked in 3 of 6 papers

Design an interior slab panel of effective dimensions 4.2 m × 6.25 m subjected to a factored load of 15 kN/m² inclusive of self-weight and floor finish load. The slab is provided with main reinforcement bar diameter as 10 mm, and has overall thickness of 150mm. Clear cover is 20 mm, grade of concrete is M20, grade of steel Fe415.

Also asked in Summer 2025 Q3c OR, Summer 2024 Q3c OR

Q.4

14 Marks
(a)
3 marksAsked in 2 of 6 papers
State advantages and disadvantages of welded connections.

Also asked in Summer 2025 Q4a

(b)
4 marksSame type asked in 3 of 6 papers

Determine the development for 16 mm diameter bar, Fe 415 grade steel in compression and M 25 grade of concrete.

Also asked in Summer 2025 Q4b, Summer 2024 Q4b

(c)
7 marksAsked in 2 of 6 papers

Calculate the value of the least radius of gyration for a compound column consisting of ISHB 250 @ 536.6 N/m with one cover plate 300 mm × 20 mm on each flange.

Also asked in Summer 2024 Q4c

(a)
3 marksAsked in 3 of 6 papers
Draw neat sketch of battening system.

Also asked in Summer 2026 Q5a, Winter 2025 Q4a

(b)
4 marksAsked in 3 of 6 papers
Why are the end returns provided in fillet welds?

Also asked in Summer 2025 Q4a OR, Summer 2024 Q4b OR

(c)
7 marks

Explain the design procedure of slab base and gusseted base foundation.

Q.5

14 Marks
(a)
3 marksAsked in 3 of 6 papers
Differentiate between one-way slab and two-way slab.

Also asked in Summer 2026 Q4a, Winter 2023 Q4a

(b)
4 marksAsked in 2 of 6 papers
Write the design steps for single lacing system for column.

Also asked in Summer 2024 Q5b

(c)
7 marksSame type asked in 3 of 6 papers

Design a simply supported one way slab for an effective span of 3.0 m to carry total factored load of 9 kN/m². Use M: 20 grade of concrete and Fe: 250 grade of steel.

Also asked in Summer 2026 Q3c, Winter 2023 Q4c OR

(a)
3 marksAsked in 5 of 6 papers

Why are four different buckling curves prescribed to evaluate column strength?

Also asked in Summer 2026 Q3b OR, Winter 2025 Q4a OR, Summer 2025 Q5a, Summer 2024 Q5a OR

(b)
4 marksAsked in 3 of 6 papers

Enlist the various failure modes of axially loaded tensile member along with sketch (line diagram only).

Also asked in Summer 2025 Q5b, Summer 2024 Q5b OR

(c)
7 marks

Explain the design procedure for laterally supported and unsupported steel beam.

More Design of Structures papers

Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.

Summer 202670 marks · 5 questions
Winter 202570 marks · 5 questions
Summer 202570 marks · 5 questions
Winter 202470 marks · 5 questions

Other Semester 5 subjects

BE Civil

2150603
Environmental Engineering
2150608
Structural Analysis-II
3150610
Concrete Technology
3150611
Transportation Engineering

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About this paper

Official Gujarat Technological University (GTU) examination paper for Design of Structures (Summer 2023, B.E. · Civil Engineering, Sem 5). 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.

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