A pin- connected truss is loaded and supported as shown in the figure. Determine a. The normal stress in member DE if it has a cross-sectional area of 750 mm². Ans. 17.78 MPa (T) b. The minimum cross-sectional area for member BC if the normal stress is limited to 30 MPa. Ans. 388.9 mm² c. The shear stress at pin at A if it is in double shear and has a diameter of 25 mm. Ans. 11.88 MPa

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A pin- connected truss is loaded and supported as shown in the figure. Determine
a. The normal stress in member DE if it has a cross-sectional area of 750 mm².
Ans.
17.78 MPa (T)
b. The minimum cross-sectional area for member BC if the normal stress is limited to 30 MPa.
Ans.
388.9 mm²
C. The shear stress at pin at A if it is in double shear and has a diameter of 25 mm.
Ans.
11.88 MPa
y
3 m
B
D
10 kN
3 m
E
15 kN
-3 m
3 m
Transcribed Image Text:A pin- connected truss is loaded and supported as shown in the figure. Determine a. The normal stress in member DE if it has a cross-sectional area of 750 mm². Ans. 17.78 MPa (T) b. The minimum cross-sectional area for member BC if the normal stress is limited to 30 MPa. Ans. 388.9 mm² C. The shear stress at pin at A if it is in double shear and has a diameter of 25 mm. Ans. 11.88 MPa y 3 m B D 10 kN 3 m E 15 kN -3 m 3 m
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