Combined Footing: L2 must be 1.42 m because of the location of the property line. Determine the rectangular combined footing size (B x L). Given: Q₁ + Q₂ I Q1 = 510 kN X Q2 = 585 kN L3 qnet(all) = 140 kN/m² L3 = 4.45m e₁

Combined Footing: L2 must be 1.42 m because of the location of the property line. Determine the rectangular combined footing size (B x L). Given: Q₁ + Q₂ I Q1 = 510 kN X Q2 = 585 kN L3 qnet(all) = 140 kN/m² L3 = 4.45m e₁

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

Combined Footing: L2 must be 1.42 m because of the location of the property line.
Determine the rectangular combined footing size (B x L).
Given:
Q₁ + Q₂
I
42₂
L₁
Q₁ = 510 kN
X
Q2 = 585 KN
L3
l₂
Qnet (all) = 140 kN/m²
L3 = 4.45m
2₁

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