Q1 as in APPENDIX I. The plane truss is supported with pin and roller at points A and G respectively. The point loads imposed are 100 kN at point B, 150 kN at point D, and 50 kN at point F. Propose internal forces of each member either in tension or compression strength by using the method of joint for the plane truss. Support the answer with further justification about the tension and compression strength generated at each member due to reaction forces imposed at both supports A and B, and also external forces at points B, D, and F.
A truss is a span of a structure which required being large and its depth is not an important
criterion for design and consists of a slender element with a triangular fashion
arrangement. Trusses are supported by compression and tension forces in the members.
One of the advantages of using truss compared to the beam is that it uses less material to
support a given load. Trusses are constructed from long and slender elements which can
be arranged in various methods to support the load. The truss spans are economically
ranging from 9 m to 122 m and greater lengths. Trusses can be classified into plane trusses
and space trusses. Plane trusses are composed of members that lie in the same plane and
commonly used for bridge and roof support. On the other hand, space trusses are
composed of members extending in three dimensions and are suitable for derricks and
towers. One modern house plan is required plane truss for roof design as shown in Figure
Q1 as in APPENDIX I. The plane truss is supported with pin and roller at points A and G
respectively. The point loads imposed are 100 kN at point B, 150 kN at point D, and 50 kN
at point F.
Propose internal forces of each member either in tension or compression strength by using
the method of joint for the plane truss. Support the answer with further justification about
the tension and compression strength generated at each member due to reaction forces
imposed at both supports A and B, and also external forces at points B, D, and F.
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