Question

1.
The truss shown is one of several roof trusses spaced 4.4 m apart. W6x12, A36 purlins are located at the joints. Sagrods are located at mid-span of purlins. The
weight of the roofing material is 731 Pa on the roof surface and the roof live load is 866 Pa assumed to act on horizontal projection of the roof surface. Disregard
the purlin weight. Use h=1.5 m.
h
6 @ h
Calculate the uniform tributary dead load on a single interior purlin along the normal axis of the purlin. Write your answer in N/m, rounded up to a whole number.
2.
The truss shown is one of several roof trusses spaced 5.3 m apart. W6x12, A36 purlins are located at the joints. Sagrods are located at mid-span of purlins. The
weight of the roofing material is 748 Pa on the roof surface and the roof live load is 830 Pa assumed to act on horizontal projection of the roof surface. Disregard
the purlin weight. Use h=1.3 m.
6 @ h
Calculate the uniform tributary dead load on a single interior purlin along the tangential axis of the purlin. Write your answer in N/m. rounded up to a whole
number.​

Answer 1

Answer:

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