Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 8th Sem Old 180604 Structural Design Ii Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII (OLD) EXAMINATION ? SUMMER 2019
Subject Code: 180604 Date: 20/05/2019
Subject Name:Structural Design-II
Time: 10:30 AM TO 01:30 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of IS:456, IS:800, IS:875, IS:1893, SP:16 and Steel Table is permitted.
5. For RCC, wherever not mention use M20 grade of concrete and Fe 415 steel.
6. For STEEL, wherever not mention use Fe 410 grade.
Q.1 (a) Explain with sketches, basic structural configurations of steel towers. 07
(b) Estimate design wind load for a multi storey building of plan area 25 m X 30 m
situated in Chennai for the given data. Bay width in both direction = 5 m , Height
of building = 30 m with uniform storey height, Terrain Category= III ,
Topography = plane with upwind slope less than 3?, Life of building = 100 years.
07
Q.2 (a) A Cantilever Retaining Wall is used to retain the earth 4 m high. The wall retains
soil having unit weight (density) of 17 kN/m
3
up to its top. Angle of internal
friction is 30?. The material under the wall base having soil bearing capacity =
150 kN/m
2
. Co-efficient of friction between base and soil = 0.55.
(1) Work out Preliminary Dimensions of wall.
(2) Do Stability Calculation with check.
07
(b) Do Structural Design of Stem for cantilever retaining wall of Q-2 (a). Also sketch
reinforcement detail for stem as per design.
07
OR
(b) Do Structural Design of Heel for cantilever retaining wall of Q-2 (a). Also sketch
reinforcement detail for Heel as per design.
07
Q.3 (a) Prepare a typical structural layout for G+3 building having 4 bays of 5 m in x-
direction and 5 bays of 4 m in y-direction. Also plot load distributions diagram
for typical floor any interior continuous beam. Take thickness of slab =120 mm,
Floor finish = 0.5 kN/m
2
, Live load = 4 kN/m
2
, Thickness of interior wall = 115
mm, Height of wall = 3 m, size of beam = 230mm x 450 mm
07
(b) Design a two way slab with one short edge discontinuous for prepared structural
layout of Q-3 (a). Take Floor finish = 0.5 kN/m
2
, Live load = 4 kN/m
2
, width of
support = 230 mm.
07
OR
Q.3 Find dimensions for overhead circular water tank of capacity 4.5 lacs litre with
flat bottom and supported on ring beam. Design (a) top spherical dome (b) top
ring beam (c) Cylindrical wall. Use M25 and Fe 415.
14
Q.4 Design a welded plate girder 25m in span and laterally restrained throughout. It
has to support a uniform load of 80 kN/m throughout the span exclusive of self-
weight. Design the plate girder without intermediate transverse stiffeners. Design
the cross section and the end load bearing stiffener with necessary checks. Do
not design connections.
14
OR
Q.4 Design a gantry girder is carrying an electric overhead crane to the following data
: Capacity of crane = 200 kN, Self weight of crab (trolley) = 40 kN, self weight
of crane = 200 kN, minimum approach of crane hook = 1.2 m, wheel base =3.5
14
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Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII (OLD) EXAMINATION ? SUMMER 2019
Subject Code: 180604 Date: 20/05/2019
Subject Name:Structural Design-II
Time: 10:30 AM TO 01:30 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of IS:456, IS:800, IS:875, IS:1893, SP:16 and Steel Table is permitted.
5. For RCC, wherever not mention use M20 grade of concrete and Fe 415 steel.
6. For STEEL, wherever not mention use Fe 410 grade.
Q.1 (a) Explain with sketches, basic structural configurations of steel towers. 07
(b) Estimate design wind load for a multi storey building of plan area 25 m X 30 m
situated in Chennai for the given data. Bay width in both direction = 5 m , Height
of building = 30 m with uniform storey height, Terrain Category= III ,
Topography = plane with upwind slope less than 3?, Life of building = 100 years.
07
Q.2 (a) A Cantilever Retaining Wall is used to retain the earth 4 m high. The wall retains
soil having unit weight (density) of 17 kN/m
3
up to its top. Angle of internal
friction is 30?. The material under the wall base having soil bearing capacity =
150 kN/m
2
. Co-efficient of friction between base and soil = 0.55.
(1) Work out Preliminary Dimensions of wall.
(2) Do Stability Calculation with check.
07
(b) Do Structural Design of Stem for cantilever retaining wall of Q-2 (a). Also sketch
reinforcement detail for stem as per design.
07
OR
(b) Do Structural Design of Heel for cantilever retaining wall of Q-2 (a). Also sketch
reinforcement detail for Heel as per design.
07
Q.3 (a) Prepare a typical structural layout for G+3 building having 4 bays of 5 m in x-
direction and 5 bays of 4 m in y-direction. Also plot load distributions diagram
for typical floor any interior continuous beam. Take thickness of slab =120 mm,
Floor finish = 0.5 kN/m
2
, Live load = 4 kN/m
2
, Thickness of interior wall = 115
mm, Height of wall = 3 m, size of beam = 230mm x 450 mm
07
(b) Design a two way slab with one short edge discontinuous for prepared structural
layout of Q-3 (a). Take Floor finish = 0.5 kN/m
2
, Live load = 4 kN/m
2
, width of
support = 230 mm.
07
OR
Q.3 Find dimensions for overhead circular water tank of capacity 4.5 lacs litre with
flat bottom and supported on ring beam. Design (a) top spherical dome (b) top
ring beam (c) Cylindrical wall. Use M25 and Fe 415.
14
Q.4 Design a welded plate girder 25m in span and laterally restrained throughout. It
has to support a uniform load of 80 kN/m throughout the span exclusive of self-
weight. Design the plate girder without intermediate transverse stiffeners. Design
the cross section and the end load bearing stiffener with necessary checks. Do
not design connections.
14
OR
Q.4 Design a gantry girder is carrying an electric overhead crane to the following data
: Capacity of crane = 200 kN, Self weight of crab (trolley) = 40 kN, self weight
of crane = 200 kN, minimum approach of crane hook = 1.2 m, wheel base =3.5
14
2
m, distance between c/c of gantry = 15 m, span of gantry girder = 7.5 m, weight
of rail section = 300 N/m. Take yield stress of steel =250 MPa. Assume no lateral
restraints along the span.
Q.5 (a) A N-type lattice girder used as foot over bridge has span of 24 m and width 4 m.
Consider live load = 5 kN/m
2
, Floor finish = 0.75 kN/m
2
and flooring = RCC slab
110 mm thick, fy = 250 N/mm
2
. Design a cross beam. Also design a bottom chord
member in which maximum force developed.
14
OR
Q.5 (a) Determine dead load, live load and wind load per panel point for the roof truss of
a workshop shed constructed at Ahmedabad for the following requirements. Span
of truss =15 m, spacing of truss = 4 m c/c, rise of truss = 3 m, Height of truss
above G.L. = 20 m, dead load of A.C.C. roofing sheet = 150 N/m
2
, weight of
purlin and other fixtures = 120 N/m
2
Total no. of panel = 8, opening of wall area
= 10%, life period of truss = 25 years, terrain category = 3, structures = class A,
topography = plain horizontal ground and upwind slope less than 3?.
14
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This post was last modified on 20 February 2020