Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
BA SEMESTER-IV EXAMINATION WINTER 2018
Subject Code:1045003 Date:01/12/2018
Subject Name:Structure-IV
Time:02:30 PM TO 04:30 PM Total Marks: 50
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use IS -456 (2000) and SP-16 is permitted.
Q.1

Define: Characteristic load Limit state
04

Explain Balanced, Under reinforced section, Over reinforced section.
06
Q.2

Differentiate between one way and two way slabs.
05

Differentiate between Limit state method working stress method.
05
OR

A singly RC beam has effective dimension of 300 mm x 450 mm. It is reinforced with 3-20 mm dia. of Fe 415. Find out moment of resistance of beam. Use M20
05
Q.3
Design a rectangular R C beam as per IS 456 having 300 mm width. The beam is simply supported on effective span of 3.5 m. and subjected to factored load of a UDL 35 KN/m including self weight. Use M 20 Fe415.
10
OR
Q.3
A doubly reinforced beam of 300 mm X 600 mm overall is reinforced with 4-16 mm dia. bars as compression reinforcement 4-25mm dia. bars as tensile reinforcement. Effective cover on both sides is 50 mm. Use M-20 Fe-415 grade of steel. Compute moment of resistance of the beam.
10
Q.4
Design an isolated square pad footing for the RCC column of size 500 mm x 500 mm to transmit axial load of 1600 KN. The safe bearing capacity of soil is 200 KN/m2 . Use M-20 steel Fe-415.Check for shear is not required.
10
OR
Q.4
A short R.C.C column of size 300 mm X 400 mm is reinforced with 6 bars of 16 mm dia. Determine the safe load the column can carry if M-20 grade of concrete and Fe 250 steel is used. Also find the spacing of lateral ties.
10
Q.5
Design a one way simply supported slab of span 2.6 m x 6 m. Take slab thickness 150 mm and live load on slab is 2.5 KN/m2. Slab is supported by 350 mm thick beam. Use M20 Fe 415.Check the slab for control of deflection only.
10
OR
Q.5
Draw details of reinforcement of single flight stair having Landing width= 1.2 Riser= 125 mm, Tread=300 mm ,Waist slab thickness=200 mm, effective cover=25 mm Main steel= 16 mm dia. Bars at 100 mm c/c Distribution steel=8 mm dia. bars at 160 mm Assume landing on both side and no. of steps=12 nos.
10