Deemed University 2011 B.Arch Architecture University: Lingayas University Term: Title of the : Structures in -I - Question Paper
Roll No. ..
Lingayas University
B. Arch. 1st Year
Examination June 2011
Structures in Architecture-I (CE - 102)
[Time: 3 Hours] [Max. Marks: 100]
Before answering the question, candidate should ensure that they have been supplied the correct and complete question paper. No complaint in this regard, will be entertained after examination.
Note: 1. Attempt five questions in all. All questions carry equal marks. Question no. 1 (Section A) is compulsory. Select two questions from Section B and two questions from Section C.
2. Use of single memory non-programmable calculator is allowed.
3. Any missing data may be suitably assumed but Cleary stated.
4. All the dimension given are in mm.
Section A
Q-1. Answer the following questions (any five): [54=20]
(i) Arrange in the sequence of transfer of load:
Foundation, Roof, Main beams, Secondary beams, Columns.
(ii) What are the following loads due to:
Dead load, live load, Impact loading?
(iii) Define Youngs modulus of Elasticity, Shear modulus, Bulk modulus.
(iv) What is Bows Notation? Where is it used?
(v) Explain three basic conditions of static equilibrium.
(vi) What is Poisons ratio? What is its importance?
(vii) Explain parallelogram law and triangle law of forces.
Section B
Q-2. Explain the theory of simple bending in case of a beam and derive the relationships M/I=f/y=E/R. [20]
Q-3. (a) Draw stress-strain diagram in case of a mild steel bar subjected to tension and explain its salient features. [10]
(b) Define the term Radius of Gyration. How is it related to Moment of Inertia? [10]
Q-4. A simply supported beam L, is subjected to three concentrated loads W, 3W and 2W at distances of 0.25L, 0.5L and 0.75L, respectively, from the left hand support. Explain with the help of neat diagram(s) as to how you would find the reactions at the supports graphically and determine their values. [20]
Section C
Q-5. A beam, simply supported over an effective span of 8m, is subjected to a point load of l00 KN at a distance of 3m from left support in addition to a uniformly distributed load of 10 KN/m run over its entire length. Draw the Shear force and Bending Moment diagrams and mark their values at salient points. [20]
Q-6. A cantilever beam ABC is loaded as shown in (Fig. l). Determine the value of slope at B and deflection at C. The section is l50mm wide and 250mm deep.
Take E=2105 N/mm2.
[20]
Q-7. Find the position of centroid in case of the sections shown in Fig.2 (a) & (b)
[20]
Q-8. A steel tube, with external and internal diameters as 50mm & 40mm respectively, encloses a solid copper bar of 35mm diameter, the bar and the tube being rigidly connected together at ends at a temperature of 30oC. The assembly, with the initial length as 500mm, is heated to 200oC. Find the change in its length. Also, determine the stresses in steel tube & copper bar.
Take steel = 1.110-5 per oC. Copper = 1.710-5 per oC, Esteel = 2105 MPa & Ecopper = 1105 MPa. [20]
| Earning: Approval pending. |
