Seat Enrollment
GUJARAT TECHNOLOGICAL UNIVERSITY
D.ARCH SEMESTER III • EXAMINATION WINTER 2018
Subject Code: 3336204 Date: 26/11/2018
Subject Name: STRUCTURE II
Time: 10:30AM to 12:30 PM Total Marks: 50
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.
Q.1

Explain: composition of concrete.
03

Define the following terms with respect to concrete.
Water cement ratio Workability Durability
Creep Shrinkage Tensile strength
Curing Compaction
07
OR

A nominal mix of grade M20 is to be adopted on site by using table given below. It is decided to use volume batch mixing. Find out the volumetric proportions for mix. Consider the bulk density of cement, sand and gravel as 1440 1700 kg/m³ and 1700 kg/m³ respectively.
Grade of Concrete
Cement
FA+CA
FA:CA
Water Cement Ratio
M20
50
250
1:2
0.45
07
Q.2

List out the Advantages of R.C.C. over other conventional material.
03

Describe TMT bars, HYSD Bars, Design Mix Concrete, Mild steel and steel as reinforcement.
07
OR

Write in brief about balanced section, under reinforced section and over reinforced section.
07
Q.3

Define Types of loads.
03

The dimension of a rectangular beam section and the reinforcing steel provided are shown in fig. The section is subjected to a characteristic moment of 30 kNm. Determine the maximum stress in steel and concrete. The materials are M20 grade concrete and mild steel reinforcement 13.33). Also find out the M.R. of the section.
07
OR

State the assumptions made for Working Stress Method.
07
P.T.O.
Q.4

Differentiate Pre tensioning and Post tensioning.
03

Explain losses in pre stressed system.
07
OR

Define pre stressed concrete and give its advantages and disadvantages.
07
Q.5
Define the following terms with neat sketch:
10
1.
Flat slab
2.
Pneumatic Structures
3.
Folded Plates
4.
Shells
5.
Domes