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Structural Analysis III

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Southern University Bangladesh

Department of Civil Engineering


B.Sc. in Civil Engineering
Mid Term Examination (Spring-2017)

Course Title: Structural Analysis & Design III Course Code: CE-411
Batch: RCE-11 Credit: 3.0
Time: 2 Hours Full Marks: 100

[Answer any four of the following five questions. Figure in the right hand margin indicates full marks]

Q.1 a) What is structure? What are the basic differences between displacement method 2+3
and force method of analysis of indeterminate structure?

b) Analyze the continuous beam shown in figure 1(b) by slope deflection method, 20
for a 15mm settlement of support B, E= 200 X 106 kN/m2,I = 400 X 10-6

A B C D

3I 10I 2I

6m 12m 6m

Figure: 1(b)

Q.2 a) Analyze the continuous beam shown in figure 2(a) by slope deflection method. 25
Draw the shear force diagram, bending moment diagram and also the elastic curve
for the following structure

Figure:Q.2

Q.3 In order to designa bracing system, find the member forces of the truss shown in figure Q.3 25
2
using flexibility method. The cross sectional area of each vertical member is 25 cm ,
horizontal member is 20 cm2 , diagonal member is 10cm2.
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Figure:Q.3
Q.4 A frame is to be constructed in a hilly area loaded as shown in figure Q.4.The owner 25
wants to know the effect of applied loading on the frame. In order to know it you are
asked by the consultant to analyze it using slope deflection method. After analyzing
the frame comment on the result of the response.

Figure:Q.4

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Q.5 a) State the principle of reciprocal deflection. What is its significance on analysis of 3+2
indeterminate beam using force method?
b) Draw SFD and BMD of the following beam with the response got from the 20
analysis using force method.

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