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TRUSS ANALYSIS
(EXAMPLE 3.2)
From Structural Analysis by R.C Hibbeler
www.civilmdc.com
CSI ETABS
SOFTWARE
civilmdcgroup@gmail.com www.civilmdc.com
Determine the force in each member of the roof truss shown
in the
photo. The dimensions and loadings are shown in Fig. 3–
20a. State
whether the members are in tension or compression.
civilmdcgroup@gmail.com www.civilmdc.com
GRIDS for
Modeling
1.1547m
2.31m
2 m
2 m
civilmdcgroup@gmail.com www.civilmdc.com
There are four main assumptions made in
the analysis of truss
1-Truss members are connected together at their ends
only.
2-Truss are connected together by frictionless pins.
3-The truss structure is loaded only at the joints.
4-The weights of the members may be neglected.

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Truss Analysis (Example 3.2) from Structural Analysis by R.C Hibbeler