A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Parameter analysis and design on socket CFST column-cap beam joint with UHPC grouted connection
https://orcid.org/0000-0003-3256-9173
Highlights A three-dimensional numerical model that can accurately predict the nonlinear behavior of the novel socket joints was developed. The influence of performance parameters on the mechanical properties of the socket joint were studied. The modified moment capacity calculation method of the socket joints under different failure modes was verified. The convenient design process of the socket CFST column-cap beam joint with UHPC grouted connection was proposed.
Abstract The excellent mechanical properties of concrete-filled steel tube (CFST) make it a competitive alternative to column-cap/foundation cap socket connections in accelerated bridge construction (ABC). To investigate more research parameters and facilitate the seismic design of socket CFST column joints, a detailed numerical analysis model of socket column-cap beam joint was established and verified by experimental data, and the bearing capacity and failure modes of socket joints under the dimensions of the CFST parts and their material properties were investigated as well. It is found that the size of steel tube, the strength of steel tube, the socket depth of CFST, and the type of forming hole have significant effects on the strength and failure modes of column to cap beam socket joints. This study also proposed a moment calculation method for socket joints that can accurately predicts the bearing capacity under different failure modes. Finally, a design process was developed to facilitate the widespread application of this socket CFST column-cap beam joint with Ultra High-Performance Concrete (UHPC) grouted connection.
Parameter analysis and design on socket CFST column-cap beam joint with UHPC grouted connection
https://orcid.org/0000-0003-3256-9173
Highlights A three-dimensional numerical model that can accurately predict the nonlinear behavior of the novel socket joints was developed. The influence of performance parameters on the mechanical properties of the socket joint were studied. The modified moment capacity calculation method of the socket joints under different failure modes was verified. The convenient design process of the socket CFST column-cap beam joint with UHPC grouted connection was proposed.
Abstract The excellent mechanical properties of concrete-filled steel tube (CFST) make it a competitive alternative to column-cap/foundation cap socket connections in accelerated bridge construction (ABC). To investigate more research parameters and facilitate the seismic design of socket CFST column joints, a detailed numerical analysis model of socket column-cap beam joint was established and verified by experimental data, and the bearing capacity and failure modes of socket joints under the dimensions of the CFST parts and their material properties were investigated as well. It is found that the size of steel tube, the strength of steel tube, the socket depth of CFST, and the type of forming hole have significant effects on the strength and failure modes of column to cap beam socket joints. This study also proposed a moment calculation method for socket joints that can accurately predicts the bearing capacity under different failure modes. Finally, a design process was developed to facilitate the widespread application of this socket CFST column-cap beam joint with Ultra High-Performance Concrete (UHPC) grouted connection.
Parameter analysis and design on socket CFST column-cap beam joint with UHPC grouted connection
https://orcid.org/0000-0003-3256-9173
Highlights A three-dimensional numerical model that can accurately predict the nonlinear behavior of the novel socket joints was developed. The influence of performance parameters on the mechanical properties of the socket joint were studied. The modified moment capacity calculation method of the socket joints under different failure modes was verified. The convenient design process of the socket CFST column-cap beam joint with UHPC grouted connection was proposed.
Abstract The excellent mechanical properties of concrete-filled steel tube (CFST) make it a competitive alternative to column-cap/foundation cap socket connections in accelerated bridge construction (ABC). To investigate more research parameters and facilitate the seismic design of socket CFST column joints, a detailed numerical analysis model of socket column-cap beam joint was established and verified by experimental data, and the bearing capacity and failure modes of socket joints under the dimensions of the CFST parts and their material properties were investigated as well. It is found that the size of steel tube, the strength of steel tube, the socket depth of CFST, and the type of forming hole have significant effects on the strength and failure modes of column to cap beam socket joints. This study also proposed a moment calculation method for socket joints that can accurately predicts the bearing capacity under different failure modes. Finally, a design process was developed to facilitate the widespread application of this socket CFST column-cap beam joint with Ultra High-Performance Concrete (UHPC) grouted connection.
Parameter analysis and design on socket CFST column-cap beam joint with UHPC grouted connection
Zhang, Guangda (author) / Han, Qiang (author) / Xu, Kun (author) / Song, Yanchen (author) / Li, Zhipeng (author) / Du, Xiuli (author)
Engineering Structures ; 292
2023-06-24
Article (Journal)
Electronic Resource
English