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Numerical and parametric studies on SCS sandwich walls subjected to in-plane shear
Abstract Steel-concrete-steel (SCS) sandwich walls with J-hooks (SCSSWJs) exhibit wide potential applications in both civil and offshore constructions. This paper firstly developed nonlinear finite element models (NFEMs) for SCSSWJs. Two different NFEMs, namely FEM-I and FEM-II, were developed that adopted different simplifying methods on modelling complex J-hooks. Accuracies of these two NFEMs were validated by 11 tests on SCSSWJs under in-plane shear. The validations showed that these two NFEMs were capable of simulating structural behaviours of SCSSWJs subjected to in-plane shear. The FEM-II was finally adopted for the parametric studies considering both numerical accuracy and simulation efficiency. The studied parameters in the parametric studies included concrete core strength, J-hook spacing, thickness of faceplate, wall thickness of steel tube in edge column, and axial force ratio. The effects of these parameters on ultimate lateral shear resistance of SCSSWJs were detailed reported and discussed. Theoretical models have also been proposed to predict the ultimate lateral shear resistance of SCSSWJs. Their capabilities on the predictions of ultimate lateral shear resistance of SCSSWJs have been checked through validations against 22 test results and 60 FE simulated results.
Highlights Two FEMs are developed for lateral shear behavior of SCS sandwich walls with J-hooks (SCSSWJs). Two FEMs predict well in-plane shear behaviours of SCSSWJs. Parameters influencing in-plane shear resistance of SCSSWJs were revealed. Developed theoretical models predict well lateral shear resistances of SCSSWJs.
Numerical and parametric studies on SCS sandwich walls subjected to in-plane shear
Abstract Steel-concrete-steel (SCS) sandwich walls with J-hooks (SCSSWJs) exhibit wide potential applications in both civil and offshore constructions. This paper firstly developed nonlinear finite element models (NFEMs) for SCSSWJs. Two different NFEMs, namely FEM-I and FEM-II, were developed that adopted different simplifying methods on modelling complex J-hooks. Accuracies of these two NFEMs were validated by 11 tests on SCSSWJs under in-plane shear. The validations showed that these two NFEMs were capable of simulating structural behaviours of SCSSWJs subjected to in-plane shear. The FEM-II was finally adopted for the parametric studies considering both numerical accuracy and simulation efficiency. The studied parameters in the parametric studies included concrete core strength, J-hook spacing, thickness of faceplate, wall thickness of steel tube in edge column, and axial force ratio. The effects of these parameters on ultimate lateral shear resistance of SCSSWJs were detailed reported and discussed. Theoretical models have also been proposed to predict the ultimate lateral shear resistance of SCSSWJs. Their capabilities on the predictions of ultimate lateral shear resistance of SCSSWJs have been checked through validations against 22 test results and 60 FE simulated results.
Highlights Two FEMs are developed for lateral shear behavior of SCS sandwich walls with J-hooks (SCSSWJs). Two FEMs predict well in-plane shear behaviours of SCSSWJs. Parameters influencing in-plane shear resistance of SCSSWJs were revealed. Developed theoretical models predict well lateral shear resistances of SCSSWJs.
Numerical and parametric studies on SCS sandwich walls subjected to in-plane shear
Yan, Jia-Bao (author) / Guan, Hui-Ning (author) / Yan, Yan-Yan (author) / Wang, Tao (author)
2020-03-02
Article (Journal)
Electronic Resource
English
Finite element analysis , Double skin composite wall , Steel-concrete-steel sandwich wall , Shear resistance , Seismic behaviour , CFST , concrete filled steel tube , COV , coefficient of variation , NLS , nonlinear spring , NFEM , nonlinear finite element model , SCS , steel-concrete-steel , SCSSJ , SCS sandwich structures with J-hooks , SCSSBJ , SCS sandwich beam with J-hooks , SCSSW , SCS sandwich wall , SCSSWJ , SCS sandwich structures wallet with J-hooks
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