1. Sheet metal is bent into the shape shown below and then used as a beam. The shape has dimensions of b = 4.5 in., d = 7.0 in., a = 1.5 in., andt = 0.14 in. A vertical shear force of V = 6,200 lb acts on the cross section. Determine the shear stress that acts in the shape at points A–G.

1. Sheet metal is bent into the shape shown below and then used as a beam. The shape has dimensions of b = 4.5 in., d = 7.0 in., a = 1.5 in., andt = 0.14 in. A vertical shear force of V = 6,200 lb acts on the cross section. Determine the shear stress that acts in the shape at points A–G.

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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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

1. Sheet metal is bent into the shape shown below and then used as a beam. The shape has
dimensions of b = 4.5 in., d = 7.0 in., a = 1.5 in., and t = 0.14 in. A vertical shear force of V = 6,200 lb
acts on the cross section. Determine the shear stress that acts in the shape at points A-G.
b
F
A
(typ)
E
|C
D
a
a

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