Determine if a 2X10 spruce-pine-fire No.1 member is adequate for the bottom chord of the typical truss. Assume the roof dead load is 20 psf, the snow load is 40 psf, and the ceiling dead load is 15 psf of the horizontal plan area. The trusses span is 36 ft and are spaced 2 ft o.c.

Determine if a 2X10 spruce-pine-fire No.1 member is adequate for the bottom chord of the typical truss. Assume the roof dead load is 20 psf, the snow load is 40 psf, and the ceiling dead load is 15 psf of the horizontal plan area. The trusses span is 36 ft and are spaced 2 ft o.c.

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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Concept explainers

Sizing Joists and Rafters

In civil engineering and building construction, joists and rafters are the major components including beams and columns. Almost every structural construction including buildings, skyscrapers, bridges, commercial complexes, and so on makes use of joists and rafters to provide structural integrity to the building. Joists are primarily thick long pieces of metals, concrete, or wood that are used to support the floor and ceiling. On the other hand, rafters form the major component of pitched roofs, which are a series of sloped long pieces extending from a ridged area that makes contact with the plane area of the wall. They account for the load-bearing of the building along with the beams.

Question

Determine if a 2X10 spruce-pine-fire No.1 member is adequate for the
bottom chord of the typical truss. Assume the roof dead load is 20 psf,
the snow load is 40 psf, and the ceiling dead load is 15 psf of the
horizontal plan area. The trusses span is 36 ft and are spaced 2 ft o.c.
F
12
5/
E
D
B.

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