Answered: Part B D, c' Foundation type 110 Ib/ft…

Part B D, c' Foundation type 110 Ib/ft 17.8 kN/m 16.5 kN/m 3 ft 3 ft 28° 400 lb/ft? Continuous а. b. 1.5 m 1.2 m 35° Continuous 3 m 2 m 30° Square с.

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

For the following cases, determine the allowable gross vertical load-bearing capacity of the foundation. Use Terzaghi’s equation and assume general shear failure in soil. Use FS = 4.

Part
B
D,
c'
Foundation type
110 Ib/ft
17.8 kN/m
16.5 kN/m
3 ft
3 ft
28°
400 lb/ft?
Continuous
а.
b.
1.5 m
1.2 m
35°
Continuous
3 m
2 m
30°
Square
с.

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