Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Investigation on the Behavior of Interior Frame Joint Using Simplified Bolt Connections
To simplify the installation process and improve the construction efficiency of precast structures, this paper proposes a new precast concrete beam-to-column joint consisting of composite beams, precast columns and a precast joint core. The longitudinal rebars in precast columns and beams were connected using simplified bolt connections. In order to study the seismic behavior of the proposed beam-to-column joint and facilitate its use in practice, a full-scale frame interior joint was tested under reversed cyclic loading in a high axial compression ratio of 0.48. The test results revealed that specimen underwent flexural failure at beam ends, and no significant concrete damage was observed in the joint core area and columns. A finite element model was also developed, with the consideration of the material nonlinearity of concrete, contact behavior of the precast and post-cast concrete interfaces. The numerical model exhibited a good correlation with the test results, in terms of failure mode and bearing capacity with a maximum difference of less than 5%. A parametric study was carried out to extend the experimental works, including discussing the effects of the axial compression ratio, concrete strength and beam reinforcement rate.
Investigation on the Behavior of Interior Frame Joint Using Simplified Bolt Connections
To simplify the installation process and improve the construction efficiency of precast structures, this paper proposes a new precast concrete beam-to-column joint consisting of composite beams, precast columns and a precast joint core. The longitudinal rebars in precast columns and beams were connected using simplified bolt connections. In order to study the seismic behavior of the proposed beam-to-column joint and facilitate its use in practice, a full-scale frame interior joint was tested under reversed cyclic loading in a high axial compression ratio of 0.48. The test results revealed that specimen underwent flexural failure at beam ends, and no significant concrete damage was observed in the joint core area and columns. A finite element model was also developed, with the consideration of the material nonlinearity of concrete, contact behavior of the precast and post-cast concrete interfaces. The numerical model exhibited a good correlation with the test results, in terms of failure mode and bearing capacity with a maximum difference of less than 5%. A parametric study was carried out to extend the experimental works, including discussing the effects of the axial compression ratio, concrete strength and beam reinforcement rate.
Investigation on the Behavior of Interior Frame Joint Using Simplified Bolt Connections
Lecture Notes in Civil Engineering
Ilki, Alper (Herausgeber:in) / Çavunt, Derya (Herausgeber:in) / Çavunt, Yavuz Selim (Herausgeber:in) / Lei, Jie (Autor:in)
International Symposium of the International Federation for Structural Concrete ; 2023 ; Istanbul, Türkiye
03.06.2023
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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