rectangular and section analysis in bending and shear

Rectangular and section analysis in bending and shear

Learning out-comes ARUAN EFENDY BIN MOHD GHAZALI FAKULTI KEJURUTERAAN AWAM ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],Where: f y is the yield stress A s is the area of reinforcement γ ms is the partial safety factor for the reinforcement (=1.05)

[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

[object Object],Due to concrete (in general z=(d-(0.5X0.9x)) hence; 0.156= M/bd²f cu Due to steel reinforcement

[object Object],[object Object],Since K<0.156, design as simply-reinforced beam Provide 2T20 ( A s prov. = 628mm 2 )

[object Object],[object Object],M u = 0.156bd²f cu Based on Concrete strength and M u = 0.95f y A s z Based on Steel

[object Object],[object Object],where d’ is the depth to the compression steel from the top surface. We must now increase the area of tensile reinforcement to maintain compatibility by an equal amount

[object Object],and K’ = 0.156

[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],A further limitation placed on the spacing of links by the BS is that the maximum spacing should be less than 0.75d , which is obviously necessary to avoid a failure plane forming which misses the links altogether

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

rectangular and section analysis in bending and shear

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rectangular and section analysis in bending and shear