This set of Structural Analysis Multiple Choice Questions & Answers (MCQs) focuses on “Analysis of Frames : Sidesway-I”.

AB = 12m, BC = 15m, CD = 18m

Load of 40 kN is acting at joint B as shown.

EI is constant throughout the frame.

All force options are given in KN and all moment options are given in KN-M.

FEM represent fixed end moments.

1. This beam is a non – sway frame.

State whether this statement is true or false.

a) true

b) false

View Answer

Explanation: This frame is a sway frame. Members and loading are unsymmetrical.

2. What will be the value of FEM_{BC}?

a) 80

b) 0

c) -160

d) 160

View Answer

Explanation: No moment or force is acting on beam BC. The 40KN force will be considered in joint equilibrium.

3. What will be the value of rotation at point A?

a) 137.1/EI

b) -137.1/EI

c) 0

d) 100/EI

View Answer

Explanation: There won’t be any rotation at point A as it is a fixed support.

4. How many deflection unknowns will be there in this case for which we would need equations?

a) 0

b) 1

c) 2

d) 3

View Answer

Explanation: Initially, there will be 3 displacement unknowns, but all but of them will come out to be zero as members are always considered inextensible.

5. How many unknowns will be left finally which is non-zero?

a) 0

b) 1

c) 2

d) 3

View Answer

Explanation: Rotation at points B and C and displacement of beam BC will be left finally to be calculated from equations.

6. How many total slope deflection equations will be written in this question?

a) 8

b) 6

c) 4

d) 3

View Answer

Explanation: 3 members are there and non joint has a zero moment, so there will be 6 sde equations.

7. What will be the FEM_{AB} ?

a) 80

b) -80

c) 0

d) 160

View Answer

Explanation: No load is acting on the member AB and same goes for member CD.

8. Which of the following set of points should be chosen to generate extra equations?

a) A and B

b) B and C

c) C and D

d) D and A

View Answer

Explanation: All unknown will come in account if we conserve moment about points B and C.

9. What will be the value of shear in beam AB?

a) mBA + mAB/12

b) mBA + mCB/12

c) mBA + mBC/12

d) mAB + mBC/12

View Answer

Explanation: Separate out the beam AB and conserve moment about any one of the ends.

10. What will be the value of shear in beam CD?

a) mBA + mCA/12

b) mBA + mCB/18

c) mBA + mBC/18

d) mCD + mDC/18

View Answer

Explanation: Separate out the beam CD and conserve moment about any one of the ends.

11. What will be the value of rotation at point B?

a) 438.81/EI

b) -137.1/EI

c) 0

d) 136.18/EI

View Answer

Explanation: On solving all the three equations obtained above simultaneously, we will get the answer.

**Sanfoundry Global Education & Learning Series – Structural Analysis.**

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