Answered: BRONZE BRONZE 30°| 30° 3 m STEEL W =…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

Three rods each with area of 250 mm² jointly supports a 9.5 kN load. Assume that there was no slack stress in the rods before the load was applied. E(steel) = 200 GPa, E(bronze) = 83 GPa. The steel supports the load vertically while the two bronze are opposite each other inclined at an angle 30 from the vertical forming a triangle to the common support.
1. Find the load carried by the steel rod if it is 3 meters long.
a. 3.236 kN
b. 5.124 kN
c. 6.174 kN
d. 6.147 kN
2. Find the stress in each bronze rod.
a. 6.78 MPa
b. 7.68 MPa
c. 5.4 MPa
d. 7.10 MPa
3. Find the elongation of the steel bar.
a. 0.370 mm
b. 0.124 mm
c. 0.356 mm
d. 0.427 mm

BRONZE
BRONZE
30°| 30°
3 m
STEEL
W = 9.5kN
FIGURE B

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