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The figure above is the plan of a rectangular raft foundation carrying a uniformly distributed load. The raft is symmetrical about lines CD and CB. When computing the incremental vertical stress at 2 m below point C, what values of "L" and "b" should be used in the following expression: Ao₂ = 24 [tan−¹ (1₂) + 5² (+)]. NOTE the expression should give the final stress value at point C, therefore evaluating the validity of the expression Lbz 1 R3 R is part of the question. T 1m 1.5 m

The figure above is the plan of a rectangular raft foundation carrying a uniformly distributed load. The raft is symmetrical about lines CD and CB. When computing the incremental vertical stress at 2 m below point C, what values of "L" and "b" should be used in the following expression: Ao₂ = 24 [tan−¹ (1₂) + 5² (+)]. NOTE the expression should give the final stress value at point C, therefore evaluating the validity of the expression Lbz 1 R3 R is part of the question. T 1m 1.5 m

Structural Analysis
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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The figure above is the plan of a rectangular raft foundation carrying a uniformly distributed load. The raft is symmetrical about lines CD and CB. When computing the incremental vertical stress at 2 m below point C, what values of "L" and "b" should be used in the following expression: Δσ. = is part of the question. = 24 [tan-¹ (1) + ( + ) . NOTE the expression should give the final stress value at point C, therefore evaluating the validity of the expression OL-2 m; b= 1.5 m. OL-1 m; b = 3 m O L=1.5 m; b=1m OL-3 m; b= 2m 1 m A 1.5 m O None of these or the expression is incorrect
Transcribed Image Text:The figure above is the plan of a rectangular raft foundation carrying a uniformly distributed load. The raft is symmetrical about lines CD and CB. When computing the incremental vertical stress at 2 m below point C, what values of "L" and "b" should be used in the following expression: Δσ. = is part of the question. = 24 [tan-¹ (1) + ( + ) . NOTE the expression should give the final stress value at point C, therefore evaluating the validity of the expression OL-2 m; b= 1.5 m. OL-1 m; b = 3 m O L=1.5 m; b=1m OL-3 m; b= 2m 1 m A 1.5 m O None of these or the expression is incorrect
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