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What is the value of nominal shear strength according to tension field method?

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What is the value of nominal shear strength according to tension field method?

(a) Avτb

(b) 0.9wtftwfvsinφ

(c) Avτb – 0.9wtftwfvsinφ

(d) Avτb + 0.9wtftwfvsinφ

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This question is from Web Panel Subjected to Shear in chapter Gantry Girders, Design of Plate Girders & Industrial Buildings of Design of Steel Structures

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Right answer is (d) Avτb + 0.9wtftwfvsinφ

Best explanation: In tension field method, the nominal shear strength is given by Vn = Avτb + 0.9wtftfvsinφ, where Av is area of web, τb is buckling strength or shear stress corresponding to web buckling, fv is yield strength of tension field which depends on inclination of tension field, wtf is the width of tension field, tw is width of web.

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