Finite element analysis for out of plane anti-impact performance of unwelded steel plate-concrete-steel plate composite shear wall with all bolted joints

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Journal of Vibration and Shock ›› 2021, Vol. 40 ›› Issue (9) : 166-174.

ZHU Limeng, GAO Xiaofei, ZHANG Chunwei

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Abstract

In order to study out of plane anti-impact performance of unwielded steel plate-concrete-steel plate composite shear wall with all bolted joints, its finite element (FE) model was established based on the software ABAQUS and the model effectiveness was verified with the existing test data.Then, effects of impact mass, impact energy, axial compression ratio and cross section form on the wall anti-impact ability were analyzed to acquire its failure mode.The results showed that when the impact energy is the same, the energy dissipated by the wall increases with increase in impact mass; when the impact mass is the same, the change of impact energy can affect the energy absorption ratio of each part of the wall; the smaller axial compression ratio is beneficial to the wall anti-impact ability, the axial compression ratio may not be considered in design and the result is safer; the wall anti-impact performance when the wall end U-steel opening inward is better than that when it opening outward; the anti-impact performance of the wall with split bolt is better than that of the wall with staggered stud; combined with the results of FE analysis, based on the calculation method of beam plastic displacement under impact, the calculation formula of plastic displacement of this wall under out of plane impact load is derived, and its calculation results agree better with the results of FE analysis.

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unwielded steel plate-concrete-steel plate composite shear wall with all bolted joints / split bolt / impact load / axial compression ratio / end U-steel / stud

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ZHU Limeng, GAO Xiaofei, ZHANG Chunwei. Finite element analysis for out of plane anti-impact performance of unwelded steel plate-concrete-steel plate composite shear wall with all bolted joints[J]. Journal of Vibration and Shock, 2021, 40(9): 166-174

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