Determine the service level moment capacity. The allowable stress for concrete is , and the allowable stress for steel is 30000 psi. Determine the service level moment capacity. The allowable stress for concrete is 0.45f, andthe allowable stress for steel is 30000 psi.The cross section is reinforced with four No. 11 (in-lb) bars. The concrete tensile strength can beestimated by 7.5√ √f. The concrete modulus of Elasticity can be estimated by 57000 √f. Usethe transformed section.Given PropertiesE = 29000000-psif₁ = 60000-psif = 4000-psif₁ := 60000-psib:= 36 inh:= 24 in2-½typTf = 4000-psib== 36 inE = 29000000-psiE = 57000-√√f-psi = 3604997 psi24"in beJseTips: Service level moment implies that none of the compressive or tensile zone is failed eventhough the cross section can have cracks. That is the reason why the allowable stress has beenused, not the ultimate/yield stress.The RC section will be cracked, but the maximum compressive stress in concrete will be smallerthan the allowable stress, and the maximum tensile stress in steel will also be smaller than therespective allowable stress.

Determine the service level moment capacity. The allowable stress for concrete is 0.45f, and the allowable stress for steel is 30000 psi. The cross section is reinforced with four No. 11 (in-lb) bars. The concrete tensile strength can be estimated by 7.5√f. The concrete modulus of Elasticity can be estimated by 57000√ √f. Use the transformed section. Given Properties E. = 29000000-psi f, := 60000-psi f=4000-psi f, :=60000-psi b:= 36 in h:=24 in 2-½ typ f=4000-psi b= 36 in E. = 29000000-psi E=57000-√√f-psi = 3604997 psi 24° in be Jse Tips: Service level moment implies that none of the compressive or tensile zone is failed even though the cross section can have cracks. That is the reason why the allowable stress has been used, not the ultimate/yield stress. The RC section will be cracked, but the maximum compressive stress in concrete will be smaller than the allowable stress, and the maximum tensile stress in steel will also be smaller than the respective allowable stress.

Determine the service level moment capacity. The allowable stress for concrete is 0.45f, and the allowable stress for steel is 30000 psi. The cross section is reinforced with four No. 11 (in-lb) bars. The concrete tensile strength can be estimated by 7.5√f. The concrete modulus of Elasticity can be estimated by 57000√ √f. Use the transformed section. Given Properties E. = 29000000-psi f, := 60000-psi f=4000-psi f, :=60000-psi b:= 36 in h:=24 in 2-½ typ f=4000-psi b= 36 in E. = 29000000-psi E=57000-√√f-psi = 3604997 psi 24° in be Jse Tips: Service level moment implies that none of the compressive or tensile zone is failed even though the cross section can have cracks. That is the reason why the allowable stress has been used, not the ultimate/yield stress. The RC section will be cracked, but the maximum compressive stress in concrete will be smaller than the allowable stress, and the maximum tensile stress in steel will also be smaller than the respective allowable stress.

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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