Research on shear capacity of cross-shaped composite shear wall with steel tubes and high-strength concrete
In order to study the influence of different parameters on the shear capacity of cross-shaped composite shear wall with steel tubes and high-strength concrete,a finite element model of its kind of composite shear wall was established by ABAQUS to study mainly the influence of relative design parameters including steel strength,concrete strength,steel plate thickness,steel pipe thickness,axial compression ratio,wall length,wall height,cavity length and other parameters on its shear capacity.The analysis results show that with the increase of steel strength,steel plate thickness,steel pipe thickness,wall length,and the decrease of wall height,the shear bearing capacity of the specimen shows a significant increasing trend;as the strength of concrete increases and the length of the cavity decreases,the shear bearing capacity of the specimen shows a slightly increasing trend;when the axial compression ratio is small(n ∈(0,0.3]),the axial compression ratio has a certain improvement effect on the shear bearing capacity of the specimen;and when the axial compression ratio is large(n∈(0.3,0.8]),the shear bearing capacity gradually decreases with the increase of the axial compression ratio.Finally,the formula for cal-culating the shear capacity of the cross-shaped composite shear wall with steel tubes and high strength concrete is proposed,and verified with an acceptable precision.
crosshigh-strength concretecomposite shear wall with steel tubes and concreteshear capacity
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