test 1

CONFIDENTIAL

UNIVERSITI TUN HUSSEIN ONN MALAYSIA

TEST 1 SEMESTER 1 SESSION 2014/2015 COURSE NAME

:

ST S TRUCTURAL ANALYSIS

COURSE CODE

:

BFC21403

PROGRAMME

:

3 BFF/2 BFF

EXAM EXAMIN INA ATION TION DATE DATE

:

18 OCTO OCTOBE BER R 201 2014

DURATION

:

2 HOURS

INSTRUCTION

:

ANSWER ALL QUESTIONS

THIS QUESTION PAPER CONSISTS OF FIVE (5) PAGES

CONFIDENTIAL 1

Q1

A plane truss system is used to hold an object with maximum weight of 2500 kg, as shown in Figure Q1. The truss is pinned at A and roller at G. Given the following data:

Size of all members Modulus of elasticity Unit acceleration of gravity

(a)

= 50 mm x 35 mm = 200 GPa = 9.81 m/s2

Proof that the truss is statically determinate. (2 marks)

Q2

(b)

Determine the axial forces for all members of the truss. State if the members are in tension (T) or compression (C).  (10 marks)

(c)

Using the Virtual Work Method, determine the maximum vertical displacement that may occur at joint E. (13 marks)

(a)

(b)

Verify the fact that each of the trusses contains one or more elements of redundancy as shown in Figure Q2 (a) . (9 marks) The truss system as shown in Figure Q2 (b) is pinned support at A, and roller at D and E. The young modulus of each member is 200kN/mm2 and the cross-sectional area of each member is 1800mm2. Assume the truss has external redundant at Point D. (i)

Define the classification of truss. (3 marks)

(ii)

Calculate the reactions at supports A and E. (3 marks)

(iii)

Determine the internal forces for each member. (10 marks)

-END OF QUESTION -

2

TEST 1 SEMESTER/SESSION : SEM I/2014/2015 COURSE NAME : STRUCTURAL ANALYSIS

PROGRAMME : 3BFF/2BFF COURSE CODE : BFC21403

FIGURE Q1

3

TEST 1 SEMESTER/SESSION : SEM I/2014/2015 COURSE NAME : STRUCTURAL ANALYSIS

PROGRAMME : 3BFF/2BFF COURSE CODE :BFC21403

(i)

(ii)

(iii)

FIGURE Q2(a)

4

TEST 1 SEMESTER/SESSION : SEM I/2014/2015 COURSE NAME : STRUCTURAL ANALYSIS

FIGURE Q2(a)

5

PROGRAMME : 3BFF/2BFF COURSE CODE : BFC21403