At the begining of the week. I was assigned by Mr. Siva to analyse a roof truss of a amphitheatre that is located at UNIMAS Sarawak. Coordinate of the roof truss was provided by the respective draughtsman Mr. Azizi. Dead load assigned was 0.5kN/m^2 and live load assigned was 2.0kN/m^2, while point load due to canopy was Fy = 100kN and Fx = 173kN. Wind load assigned was 1 kN/m^2.
As for today, Main truss, fascia truss, tie truss 1 and the tie truss 2 was modeled. Uniform distributed load was calculated for dead load, live load and wind load. It was assigned on the main truss and tie truss only, As a reason, tie truss only resists lateral stress. On the other hand, the loads due to the canopy was not able to calculate. Therefore, the load that acts on the roof truss was then estimated as Fy = 100kN and Fx = 173kN
The main truss
The fascia truss - The fascia truss and main truss may looks alike but they are different in terms of loads that acts on it
The tie truss that attaches to main truss - tie truss resists lateral stress
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