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Posted Date: 01 Dec 2008 Posted By: Sunil Reddy Member Level: Platinum
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2005 Jawaharlal Nehru Technological University Civil Engineering III B.Tech I Semester Supplementary Examinations, April/May 2005 STRUCTURAL ENGINEERING DESIGN AND DRAWING Question paper
Code No: RR-310103
III-B.Tech I-Semester Supplementary Examinations, April/May-2005
STRUCTURAL ENGINEERING DESIGN AND DRAWING
(Civil Engineering)
Time: 3 hours Max. Marks: 80
Answer any ONE question from PART-A & THREE from PART-B
All questions carry equal marks
Use of IS codes & Structural Tables is permitted
---
PART-A
1. Design a continuous R.C. beam of rectangular section to carry a live-load of 12
kN/m in addition to a superimposed load of 10kN/m over 3 spans of 6m each.
Assume the ends as simply-supported. Use M-20 grade of concrete and Fe-415
grade HYSD bars. Draw the reinforcement details to suitable scale. (L.S. and
C.S.)
OR
2. Design a two-way slab (4m x 6m) continuous on all the edges and supported on
300mm wide beams to serve as an office floor use M-25 grade of concrete and Fe-
4l5 grade steel. Draw to a suitable scale the plan and section showing the details
of reinforcement.
PART-B
3. An R.C. beam 300 x 600 mm ( effective depth) has 3 Nos 20mm dia as tension
steel along with 8mm dia 2 legged stirrups at 200mm spacing as shear
reinforcement. M-20 grade concrete and Fe-415 HYSD bars are used. Estimate
the shear strength of the support section.
4. Design a 300mm dia concrete column to carry a factored load of 1500kN. Use
herical reinforcement, M-20 grade of concrete and Fe- 415 grade steel. The
unsupported length of the column is 3m. The column is braced against sidesway.
Sketch the reinforcement details.
5. Design the footing for a circular column of 300mm dia. To support an ultimate
load of 750kN. The S.B.C. of soil = 200k/N/m2. Use M-20 grade concrete and
Fe-415 grade steel. sketch the reinforcement details.
6. A centilever beam 200mm wide and 300mm in effective width supports a u.d.l
and is reinforced with 4 Nos 16mm dia. rods in tension. If the factored total load
= 80kN, calculate .
a) The max. local bond stress.
b) The anchorage length required and the
c) Average bond stress, if the anchorage length provided = 1m.
7. Write short notes on any THREE of the following:-
a) Limit states
b) Characteristic and Design strength
c) Assumptions made in L S D for Flexure
d) Influence of axial force on design shear strength.
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