Design Of Steel Structures B.Tech Question Paper : vardhaman.org

College : Vardhaman College Of Engineering
Degree : B.Tech
Department : Civil Engineering
Semester : VI
Subject : Design Of Steel Structures
Document type : Question Paper
Website : vardhaman.org

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Vardhaman Design Of Steel Structures Question Paper

Four Year B. Tech VI Semester Regular Examinations May/June – 2014
(Regulations : VCE-R11)
(Civil Engineering)
Date : 8 June, 2014
Time: 3 hours
Max Marks: 75
Answer ONE question from each Unit
All Questions Carry Equal Marks

Related : Vardhaman College Of Engineering Industrial Management & Psychology B.Tech Question Paper : www.pdfquestion.in/6381.html

All parts of the question must be answered in one place only :

Unit – I

1. a) List the different types of steel structures and explain any two? 7M
b) Briefly explain the various structural stability checks considered by the IS code. 8M
2. a) Explain special considerations required in the design of steel structures? 7M
b) Explain briefly the necessity of partial safety factors and codes in structural design? 8M

Unit – II

3. a) Explain the behavior of a non slip joint with sketches? 5M
b) Design a tension member using single angle subjected to a service load of 150 kN. Use M 16 property class 4.6 bolts. 10M
4. a) Briefly explain about any two types of welds with neat sketches and explain the strength calculations in butt welds. 10M
b) Design a welded connection [three sides] for the tension member ISA 100 × 65 × 8mm subjected to 150 kN service load [Field weld]. 5M

Unit – III

5. A stanchion ISHB 300 @ 630 N/m in the lower storey of a building is to be jointed to a stanchion ISHB 200 @ 400 N/m of the next upper storey. A factored load of 900kN is to be transferred from the top storey stanchion. Design the column splice. The column ends are made flush. Use steel of grade Fe410 and M24 bolts of grade 4.6.Sketch the details. 15M
6. Design a suitable ISMB section as beam for a simply supported span of 3m carrying a dead load of 18 kN/m and live load of 40 kN/m. Assume full lateral restraint and stiff support bearing of 100 mm. Check for deflection, shear, web buckling and crippling. 15M

Unit – IV

7. Determine the design loads on the purlin of an industrial building near Visakhapatnam, given:
Class of building: general with life of 50 years:
Maximum dimension: 40m.
Width of building: 15m.
Height at eve level: 8m
Topography: ? less than 300.
Permebability: Medium.
Span of truss: 15:
Pitch: 1/5.
Sheeting: AC sheets.
Spacing of purlin: 1.35m.
Spacing of trusses: 4m.

8. a) Draw the neat sketch of the roof truss with labeling the parts of it. 7M
b) A roof truss shed is to be built in Chennai for an industry. The size of shed is 20mX5m. The height of building is 10m at the eves. Determine the basic wind pressure. 8M

Unit – V

9. The girder showed in Fig.1 is fully restrained against lateral buckling throughout its span. The span is 36m and carries two concentrated loads as shown in Fig.1. Design a plate girder. Yield stress of steel, fy = 250N / mm2
Material factor for steel, m ? =11.5
Dead Load factor fd ? =1.35
Imposed load factor, fe ? =1.50

10. Design a welded plate girder of span 30m to carry on superimposed load of 35kN/m. Avoid use of bearing and intermediate stiffeners. Use Fe415 (FE250) steel. 10M

Geo Technical Engineering-II

(Civil Engineering)
Date: 31 May, 2014
Time: 3 hours
Max Marks: 75
Answer ONE question from each Unit
All Questions Carry Equal Marks

All parts of the question must be answered in one place only :
Unit – I :
1. a) What are disturbed, undisturbed and representative samples? Explain briefly. 8M
b) The inner diameters of a sampling tube and that of a cutting edge are 70 mm and 68 mm respectively, their outer diameters are 72 mm and 74 mm. respectively. Determine the inside clearance, outside clearance and area ratio of the sampler. Outer and inner diameters are 72mm and 74mm. 7M

2. a) The measured N value at a depth of 10 m in a layer of fine sand was 23. The water table was at 2.0 m below ground surface. If the unit weight of sand above water table is 18 KN/m3 and below water table is 21 KN/m3. Calculate the corrected N- value. 8M
b) Explain in detail the different methods of boring for soil exploration. 7M

Unit – II :
3. a) Distinguish between finite and infinite slope and also list the various causes of failure of lope and hence its protection. 7M
b) A 1:1 slope having the following details, determine the FOS along the toe failure. Height of slope is 5m, unit weight of soil is 18kN/m3, a=37°, ß=42°, C=20kN/m2, F=30°. Use method of slices. 8M

4. a) Explain briefly the various causes of failure of slopes, with explanatory sketches. 8M b) Explain the stability of slope of earth dam during steady seepage. 7M

Unit – III :
5. a) A retaining wall of 9 m height has a cohesion less soil has backfill with horizontal surface. The soil has Ø = 300, G = 2.65 and e= 0.65 The water table is at a depth of 3 m , uniform surcharge on the backfill is 15 KN/m2. Draw the active earth pressure diagram andcalculate the total horizontal thrust on the wall and its point of action. 8M
b) What are the different types of retaining walls? 7M

6. a) A retaining wall of height 6.6m retains a cohesion less soil whose properties are Ø = 350, G = 2.6 and e= 0.6 The water table is at a depth of 2.1 m below the backfill surface. Draw the earth pressure diagram and calculate the total lateral thrust on the retaining wall and its position above the base of the retaining wall. 8M
b) Differentiate between Rankine’s ]theory and Coulomb theory. 7M