A 22 ft long column in an existing building is part of a braced frame, both in the x-x and the y-y planes of the cross section. It is fixed at the base and pinned at the top for both axes. In addition, the column is laterally supported perpendicular to its weak axis at a height equal 12 ft from the base as shown. The column is W10x77 section A992 steel Grade 50 (i.e. Fy = 50 ksi). Determine (KxLx) and determine the maximum factored load that the column can support. Check local buckling. See figure.

A 22 ft long column in an existing building is part of a braced frame, both in the x-x and the y-y planes of the cross section. It is fixed at the base and pinned at the top for both axes. In addition, the column is laterally supported perpendicular to its weak axis at a height equal 12 ft from the base as shown. The column is W10x77 section A992 steel Grade 50 (i.e. Fy = 50 ksi). Determine (KxLx) and determine the maximum factored load that the column can support. Check local buckling. See figure.

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

Design criteria for structural loading

The different loads such as loads due to self-weight (dead load) and external loads such as live load, wind loads, seismic load, snow load, and other loads and load combinations that influence the design of a building are called structural loading. The nature of the applied load differs from changes in the location, design, and type of materials used. The design criteria require that structures must be designed and constructed to be able to withstand all load types that are expected to act upon the structure and render its usage for the designated purpose. The structural members such as beams, slabs, columns, and foundations help the structure to withstand the applied load. There are different institutes such as ASCE and ACI that provide building design codes to assure minimum safety requirements and quality of the structures.

Question

ADDITIONAL INFO: KxLx=17.6, KyLy=10, phiPn of W10x77=869kips, phiPn of W12x53=167kips SHOW STEPS

A 22 ft long column in an existing building is part of a braced frame, both in the x-x and
the y-y planes of the cross section. It is fixed at the base and pinned at the top for both
axes. In addition, the column is laterally supported perpendicular to its weak axis at a
height equal 12 ft from the base as shown. The column is W10x77 section A992 steel
Grade 50 (i.e. Fy = 50 ksi). Determine (KxLx) and determine the maximum factored load
that the column can support. Check local buckling. See figure.
Fixed base
Ⓒ
10.0¹
12.0¹
22.0¹
(KxLx)
Fig. Problem 4
I
10'
12'
IH
(KyLy) = 10 ft
(KyLy)2 = 9.6 ft

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