Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cyclic behavior of self-centering RCFST column to beam joints with prefabricated connectors
Abstract This paper presents the cyclic behavior of reinforced concrete-filled steel tube (RCFST) column to beam joint with prefabricated connectors. The cyclic performance of four specimens was investigated to focus on the hysteretic behavior, reinforcement tension, residual deformation, and strain distribution of joints. The equivalent viscous damping coefficients (ξ eq) corresponding to the four specimens range from 0.049 to 0.087 at the yield point. And the final residual drift ratio of the specimens ranged from 3.6% to 12.9%. The tested column-beam joint specimens had good hysteretic behavior, energy dissipation, and self-centering ability. The PT steel bars without hollow channel or weakened treatment enhanced the self-centering ability and workability of joints. The finite element models were developed to verify the main mechanical properties of the self-centering RCFST column to beam joint. The average of K E/ K FEA, M c,y/ M y,FEA and M c,p/ M p,FEA were 0.89, 0.98, and 1.03, respectively. The FEA models could predict mechanical properties of the joints with high accuracy.
Highlights Four RCFST column to beam joints with prefabricated connectors were tested on the self-centering behavior. Type-CHS prefabricated connectors improved the self-centering capability of column-beam joints more than type-ATS. The proposed formulae were verified by the experimental results in high accuracy.
Cyclic behavior of self-centering RCFST column to beam joints with prefabricated connectors
Abstract This paper presents the cyclic behavior of reinforced concrete-filled steel tube (RCFST) column to beam joint with prefabricated connectors. The cyclic performance of four specimens was investigated to focus on the hysteretic behavior, reinforcement tension, residual deformation, and strain distribution of joints. The equivalent viscous damping coefficients (ξ eq) corresponding to the four specimens range from 0.049 to 0.087 at the yield point. And the final residual drift ratio of the specimens ranged from 3.6% to 12.9%. The tested column-beam joint specimens had good hysteretic behavior, energy dissipation, and self-centering ability. The PT steel bars without hollow channel or weakened treatment enhanced the self-centering ability and workability of joints. The finite element models were developed to verify the main mechanical properties of the self-centering RCFST column to beam joint. The average of K E/ K FEA, M c,y/ M y,FEA and M c,p/ M p,FEA were 0.89, 0.98, and 1.03, respectively. The FEA models could predict mechanical properties of the joints with high accuracy.
Highlights Four RCFST column to beam joints with prefabricated connectors were tested on the self-centering behavior. Type-CHS prefabricated connectors improved the self-centering capability of column-beam joints more than type-ATS. The proposed formulae were verified by the experimental results in high accuracy.
Cyclic behavior of self-centering RCFST column to beam joints with prefabricated connectors
Liu, Yanchun (Autor:in) / Yan, Xingchen (Autor:in) / He, Ruixuan (Autor:in) / Mou, Ben (Autor:in)
08.11.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Cyclic behaviour of beam-to-column joints with cast steel connectors
| British Library Online Contents | 2016
Cyclic behaviour of beam-to-column joints with cast steel connectors
| Elsevier | 2015