Refer to the footing detail shown below. The net allowable soil pressure is 6000 psf (qe). Assumingthe service dead load equals the service live load:(a) Determine the service load 'P' that can be applied based on the net allowable soil pressure(service load).(b) Determine the service load 'P' that could be applied to the footing considering one-wayshear.(c) Determine the service load 'P' that could be applied to the footing considering two-wayshear.(d) Determine the service load 'P' that could be applied to the footing considering bending.(e) Based on the above, what service load could this footing be rated for?Use fy = 60 ksi and f = 3 ksi.Hint: Assume PD = PL = P/24'-6" x 4'-6"-12" x 12" pier(centered on ftg.)essuse 3" cover (typ.)-(5)-#6 each way

We know that Net allowable soil pressure is given by qe = Service load/footing area Service load =…

Refer to the footing detail shown below. The net allowable soil pressure is 6000 psf (qe). Assuming the service dead load equals the service live load: (a) Determine the service load 'P' that can be applied based on the net allowable soil pressure (service load). (b) Determine the service load 'P' that could be applied to the footing considering one-way shear.

Refer to the footing detail shown below. The net allowable soil pressure is 6000 psf (qe). Assuming the service dead load equals the service live load: (a) Determine the service load 'P' that can be applied based on the net allowable soil pressure (service load). (b) Determine the service load 'P' that could be applied to the footing considering one-way shear.

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

Refer to the footing detail shown below. The net allowable soil pressure is 6000 psf (qe). Assuming
the service dead load equals the service live load:
(a) Determine the service load 'P' that can be applied based on the net allowable soil pressure
(service load).
(b) Determine the service load 'P' that could be applied to the footing considering one-way
shear.
(c) Determine the service load 'P' that could be applied to the footing considering two-way
shear.
(d) Determine the service load 'P' that could be applied to the footing considering bending.
(e) Based on the above, what service load could this footing be rated for?
Use fy = 60 ksi and f = 3 ksi.
Hint: Assume PD = PL = P/2
4'-6" x 4'-6"
-12" x 12" pier
(centered on ftg.)
ess
use 3" cover (typ.)
-(5)-#6 each way

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Step 1: Calculation of P based on Net allowable soil pressure

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Step 2: Calculation of P based on one way shear

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Step 3: Calculation of P based on two way shear

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Step 4: Calculation of P based on bending

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