m or nL.O10.019.08.07.06.05.04.0E 3.02.52.01.5-0.0061.50.007-0.0060.15-0.010-0.009-0.0112.0.0120.2m or n2.5 30.014-0.024.-0.0140.0200.0160.25 0.342.0000.451249.67 8 9 100.01Cats0.34-0.130.5 0.6 0.7 0.8 0.9 1.0m or n(a)ais0.171.51.5222.530.20-2.534156 768 9 107.11.00.90.80.70.640.50.30.250.2m or nE0.158.9 100.10 Q.3: A) A footing as shown in the Fig.(1). Determine two of the followings:(use chart in the last page)1- The increment in vertical stress under points (A) fordepth of 4m.2- The increment in vertical stress under points (B) fordepth of 4m.3- The increment in vertical stress under points (C) fordepth of 4m.Fig.110.0 m200kPa4.0 m8.0 mB150 kPaA4.0 m

The calculation is done by Bossinesq theory: ∆σV=3Q12πz211+rz25/2 r= Horizontal distance of the…

Q.3: A) A footing as shown in the Fig.(1). Determine two of the (use chart in the last page) 1- The increment in vertical stress under points (A) for depth of 4m. 2- The increment in vertical stress under points (B) for in vertical stress under points (C) for depth of 4m. 3- The increment depth of 4m. Fig.1 10.0

Q.3: A) A footing as shown in the Fig.(1). Determine two of the (use chart in the last page) 1- The increment in vertical stress under points (A) for depth of 4m. 2- The increment in vertical stress under points (B) for in vertical stress under points (C) for depth of 4m. 3- The increment depth of 4m. Fig.1 10.0

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

Load and resistance factor design

Load and resistance factors design (LRFD), also known as Limit state design (LSD), refers to the design method used in building engineering. A boundary condition is a condition of a structure where it can no longer meet the relevant design requirements. The condition may refer to the load level or other actions on the structure, while the terms refer to the integrity of the structure, suitability for use, durability, or other design requirements. A structure designed for LRFD is limited to keeping track of all possible actions during its design time and is always ready for use, with the appropriate level of reliability in each boundary condition. LRFD-based construction codes clearly define the appropriate levels of reliability in their instructions.

Question

m or n
L.O
10.01
9.0
8.0
7.0
6.0
5.0
4.0
E 3.0
2.5
2.0
1.5
-0.006
1.5
0.007-
0.006
0.15
-0.010
-0.009
-0.011
2
.
0.012
0.2
m or n
2.5 3
0.014
-0.024.
-0.014
0.020
0.016
0.25 0.3
4
2.000
0.4
5
1249.
6
7 8 9 10
0.01
Cats
0.34
-0.13
0.5 0.6 0.7 0.8 0.9 1.0
m or n
(a)
ais
0.17
1.5
1.5
2
2
2.5
3
0.20-
2.5
3
4
1
5
6 7
6
8 9 10
7
.
11.0
0.9
0.8
0.7
0.6
40.5
0.3
0.25
0.2
m or n
E
0.15
8.9 10
0.10

Q.3: A) A footing as shown in the Fig.(1). Determine two of the followings:
(use chart in the last page)
1- The increment in vertical stress under points (A) for
depth of 4m.
2- The increment in vertical stress under points (B) for
depth of 4m.
3- The increment in vertical stress under points (C) for
depth of 4m.
Fig.1
10.0 m
200
kPa
4.0 m
8.0 m
B
150 kPa
A
4.0 m

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