Figure Q3 shows a roof truss loaded at joints B, C and D (F = 15 kN) and supported by a pin joint at A and a roller support at E. i) Determine the support reactions. ii) Find the forces in bars FH, FB, FC, and BC of the truss. iii) Now assume that bars FC and CG are removed and two new bars BH and HD are put in place. Find the forces in bars FH, FB, BH and BC again. iv) Are the forces different now? Why? H E C D 1m Im F F 1m 1m Figure Q3 IL Im Im
Figure Q3 shows a roof truss loaded at joints B, C and D (F = 15 kN) and supported by a pin joint at A and a roller support at E. i) Determine the support reactions. ii) Find the forces in bars FH, FB, FC, and BC of the truss. iii) Now assume that bars FC and CG are removed and two new bars BH and HD are put in place. Find the forces in bars FH, FB, BH and BC again. iv) Are the forces different now? Why? H E C D 1m Im F F 1m 1m Figure Q3 IL Im Im
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
![Figure Q3 shows a roof truss loaded at joints B, C and D (F = 15 kN) and supported by
a pin joint at A and a roller support at E.
i) Determine the support reactions.
ii) Find the forces in bars FH, FB, FC, and BC of the truss.
iii) Now assume that bars FC and CG are removed and two new bars BH and HD are put
in place. Find the forces in bars FH, FB, BH and BC again.
iv) Are the forces different now? Why?
H
E
C
D
1m
Im
F
F
1m
1m
Figure Q3
IL
Im
Im](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F075c6f2f-3ade-4e5b-824f-666a704a2bab%2F178ff441-786c-4b3e-9a3a-873e4e0be272%2Fiohatuj.jpeg&w=3840&q=75)
Transcribed Image Text:Figure Q3 shows a roof truss loaded at joints B, C and D (F = 15 kN) and supported by
a pin joint at A and a roller support at E.
i) Determine the support reactions.
ii) Find the forces in bars FH, FB, FC, and BC of the truss.
iii) Now assume that bars FC and CG are removed and two new bars BH and HD are put
in place. Find the forces in bars FH, FB, BH and BC again.
iv) Are the forces different now? Why?
H
E
C
D
1m
Im
F
F
1m
1m
Figure Q3
IL
Im
Im
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