Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
BA SEMESTER-III EXAMINATION WINTER 2018
Subject Code:1035003 Date:01/12/2018
Subject Name:Structure-III
Time:10:30 AM TO 12:30 PM Total Marks: 50
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1

Explain buckling of a column and write down the "Euler Crippling Load" formula for different end conditions of the long column.
06

Define Axial Load and Eccentric Load also state equation of Direct and Bending Stress.
04
Q.2

Advantages and disadvantages of indeterminate Structures
04

Define the following terms
Long column, Strut, Resilience, Strain, Direct stress, Buckling load.
06
OR

Calculate the radius of gyration of the hollow rectangular Section which has outside dimension 300 mm width 650 mm depth inside dimension 250 mm width 550 mm depth.
06
Q.3
A two span continuous beam ABC is simply supported at B and C such that AB= 4m and BC 6m. The span AB carries a u.d.l. of 25 kN/m and span BC carries a central point load of 120 kN. Draw S.F and B.M diagrams for the beam.
10
OR
Q.3
A fixed beam of 10 m span carries a point load 50 kN centre, and 15 kN/m udl all over the span. Draw Shear Force Diagram Bending Moment Diagram for the beam.
10
Q.4
A square column of 550 mm side carries a compressive Load of 800 kN at an eccentricity of 120 mm on x-x axis. Find maximum stress and minimum stress at the base of the column. Draw the Stress Diagram.
10
OR
Q.4
Determine the slope deflection at the free end B of a 3 m long cantilever beam AB, if beam carries a udl of 20 kN/m on entire span. Take beam of 250 x 550 mm and E 2 x 105 N/mm2.
10
Q.5
5 m long column, an section, has 350 mm depth and 130 mm width. Thickness of flange and web is 1 cm. It is used as a column with one end fixed and other hinged. Determine safe load with Euler's formula keeping factor of safety as 7.05. E 2 x 105 N/mm2.
10
OR
Q.5
A steel rod 6m long and of 350mm diameter is used as a column, with one end fixed and other free. Determine the crippling load by Euler's Formula. Take E as 200 GPa.
10