Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN: 9781337094740
Author: Segui, William T.
Publisher: Cengage Learning
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Chapter 9, Problem 9.1.6P
To determine
The nominal flexural strength of the composite beam given in problem 9.1-3.
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A flexible circular area is subjected to a uniformly distributed load of 148 (see the figure below). The diameter of the load area is 2 . Estimate the average stress increase () below the center of the loaded area between depths of 3 and 6 . Use the equations:
and
(Enter your answer to three significant figures.)
=
A square flexible foundation of width B applies a uniform pressure go to the underlying ground.
(a) Determine the vertical stress increase at a depth of 0.625B below the center using Aσ beneath the corner of a uniform rectangular load given by Aσ =
Variation of Influence Value I
qoI. Use the table below.
n
0.8
1.0
m 0.2 0.4 0.5
0.6
0.2 0.01790 0.03280 0.03866 0.04348 0.05042 0.05471
0.4 0.03280 0.06024 0.07111 0.08009 0.09314 0.10129
0.5 0.03866 0.07111 0.08403 0.09473 0.11035 0.12018
0.6 0.04348 0.08009 0.09473 0.10688 0.12474 0.13605
0.8 0.05042 0.09314 0.11035 0.12474 0.14607 0.15978
1.0 0.05471 0.10129 0.12018 0.13605 0.15978 0.17522
(Enter your answer to three significant figures.)
Ασ/90
=
(b) Determine the vertical stress increase at a depth of 0.625B below the center using the 2 : 1 method equation below.
90 x B x L
Aσ =
(B+ z) (L + z)
(Enter your answer to three significant figures.)
Ασ/90 =
(c) Determine the vertical stress increase at a depth of 0.625B below the center using…
Point loads of magnitude 100, 200, and 360 act at , , and , respectively (in the figure below). Determine the increase in vertical stress at a depth of 6 below point . Use Boussinesq's equation.
(Enter your answer to three significant figures.)
=
Chapter 9 Solutions
Steel Design (Activate Learning with these NEW titles from Engineering!)
Ch. 9 - Prob. 9.1.1PCh. 9 - Prob. 9.1.2PCh. 9 - Prob. 9.1.3PCh. 9 - Prob. 9.1.4PCh. 9 - Prob. 9.1.5PCh. 9 - Prob. 9.1.6PCh. 9 - A W1422 acts compositely with a 4-inch-thick floor...Ch. 9 - Prob. 9.2.2PCh. 9 - Prob. 9.3.1PCh. 9 - Prob. 9.3.2P
Ch. 9 - Prob. 9.4.1PCh. 9 - Prob. 9.4.2PCh. 9 - Prob. 9.4.3PCh. 9 - Prob. 9.4.4PCh. 9 - Prob. 9.4.5PCh. 9 - Prob. 9.5.1PCh. 9 - Prob. 9.5.2PCh. 9 - Prob. 9.5.3PCh. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Prob. 9.7.1PCh. 9 - Prob. 9.7.2PCh. 9 - Prob. 9.7.3PCh. 9 - Prob. 9.7.4PCh. 9 - Prob. 9.8.1PCh. 9 - Prob. 9.8.2PCh. 9 - A beam must be designed to the following...Ch. 9 - Prob. 9.8.4PCh. 9 - Prob. 9.8.5PCh. 9 - Prob. 9.8.6PCh. 9 - Prob. 9.8.7PCh. 9 - Prob. 9.8.8PCh. 9 - Use the composite beam tables and select a W-shape...Ch. 9 - Prob. 9.8.10PCh. 9 - Prob. 9.10.1PCh. 9 - Prob. 9.10.2P
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