Answered: Determine the nominal axial compressive…

Determine the nominal axial compressive strength, Pn for the following cases: a. L= 15 ft b. L = 20 ft Note: Pinned both end support W10 × 33 L r = 1.94 in A992 steel E = 29000 ksi Fy = 50ksi

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter3: Tension Members

Section: Chapter Questions

Problem 3.8.3P

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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

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Determine the nominal axial compressive
strength, Pn for the following cases:
a. L= 15 ft
b. L = 20 ft
Note: Pinned both end support
W10 × 33
L
r = 1.94 in
A992 steel
E = 29000 ksi
Fy = 50ksi

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