Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Seismic behaviour of novel concrete-filled composite plate shear walls with boundary columns
Abstract Concrete-filled composite plate shear walls (CCPSW) with novel enhanced C-channels (CCPSW-ECs) were developed as lateral-shear resisting structural components in high-rise buildings and nuclear facilities. This paper studied seismic performances of CCPSW-ECs through eight cyclic tests. The key influencing parameters on seismic behaviours of CCPSW-ECs were studied in the testing program, i.e., spacing of ECs (S), axial force ratio (n d), thickness of steel tube (t b), width of boundary CFST (W b), with/without additional strengthening steel tube in boundary column, and with/without boundary CFST column. The CCPSW-ECs failed in flexure with characteristics of yielding and local buckling of faceplates in the CCPSW and steel tube of boundary CFST column, and crushing of concrete core. Introducing strengthening steel tube, using boundary CFST column and enlarging the t b of boundary CFST column acted effectively on improving seismic resistances of CCPSW-ECs. Varying S and n d values exhibited marginal influences on seismic resistances of CCPSW-ECs. This paper developed theoretical hysteretic model to describe skeleton and cyclic load versus lateral displacement behaviours of CCPSW-ECs. Validations against eight test results showed that the developed theoretical model predicted well skeleton/hysteretic load-lateral displacement behaviours of CCPSW-ECs.
Graphical abstract Display Omitted
Highlights Composite plate shear walls with boundary columns and ECs (CPSW-ECs) are developed. Seismic behaviours of CPSW-ECs are studied by eight cyclic tests. Influencing key parameters on seismic behaviours of CPSW-ECs are studied. Strengthening boundary CFST columns greatly improve seismic resistance of CPSW-ECs. Proposed hysteretic models predict well cyclic load-drift behaviours of CPSW-ECs.
Seismic behaviour of novel concrete-filled composite plate shear walls with boundary columns
Abstract Concrete-filled composite plate shear walls (CCPSW) with novel enhanced C-channels (CCPSW-ECs) were developed as lateral-shear resisting structural components in high-rise buildings and nuclear facilities. This paper studied seismic performances of CCPSW-ECs through eight cyclic tests. The key influencing parameters on seismic behaviours of CCPSW-ECs were studied in the testing program, i.e., spacing of ECs (S), axial force ratio (n d), thickness of steel tube (t b), width of boundary CFST (W b), with/without additional strengthening steel tube in boundary column, and with/without boundary CFST column. The CCPSW-ECs failed in flexure with characteristics of yielding and local buckling of faceplates in the CCPSW and steel tube of boundary CFST column, and crushing of concrete core. Introducing strengthening steel tube, using boundary CFST column and enlarging the t b of boundary CFST column acted effectively on improving seismic resistances of CCPSW-ECs. Varying S and n d values exhibited marginal influences on seismic resistances of CCPSW-ECs. This paper developed theoretical hysteretic model to describe skeleton and cyclic load versus lateral displacement behaviours of CCPSW-ECs. Validations against eight test results showed that the developed theoretical model predicted well skeleton/hysteretic load-lateral displacement behaviours of CCPSW-ECs.
Graphical abstract Display Omitted
Highlights Composite plate shear walls with boundary columns and ECs (CPSW-ECs) are developed. Seismic behaviours of CPSW-ECs are studied by eight cyclic tests. Influencing key parameters on seismic behaviours of CPSW-ECs are studied. Strengthening boundary CFST columns greatly improve seismic resistance of CPSW-ECs. Proposed hysteretic models predict well cyclic load-drift behaviours of CPSW-ECs.
Seismic behaviour of novel concrete-filled composite plate shear walls with boundary columns
Yan, Jia-Bao (Autor:in) / Hu, Hui-Tao (Autor:in) / Wang, Tao (Autor:in)
28.12.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Seismic behaviour , Cyclic test , Shear walls , Composite structure , Double skin structure , High-rise building , Hysteretic model , CCPSW , concrete-filled composite plate shear walls , CCPSW-ECs , concrete-filled composite plate shear walls with enhanced C-channel connectors , CFST , concrete-filled steel tube , COV , coefficient of variation , ECs , enhanced C-channel connectors , LVDTs , linear varying displacement transducers , NWC , normal weight concrete
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