Moment-rotation model of double-endplates replaceable beam-column joint

• Autorzy: Ma Xiaoming , Jiang Liqiang , Hu Yi , Zhou Chen , Zheng Hong , Mi Yuxi

Identyfikatory

DOI

10.1007/s43452-024-00962-1

• Języki publikacji: EN

Abstrakty

EN

This paper proposes the double-endplates replaceable beam-column joint (DEBJ) based on the seismic design concept of replaceable beam. Compared to the common extended endplate bolted joint (CEBJ), the DEBJ is easy to be connected and replaced after earthquakes, and it can achieve plastic hinge outward movement in steel frame. Due to double endplates and different failure modes, the current moment-rotation models for CEBJ cannot be used for DEBJ. Therefore, based on the classical model used for traditional endplate joints, a theoretical moment-rotation model for DEBJ is developed, and the calculation methods on ultimate bending moment and initial rotational stiffness are deduced. A parametric study is performed for DEBJ based on a test-validated finite element (FE) model developed in this paper. The predicted moment-rotation curves calculated from proposed theoretical model is validated by the experimental results on endplate joints and FE results on DEBJ. The results show that the established theoretical model proposed in this paper can predict the moment-rotation relation curves of DEBJ and the common extended endplate bolted joint (CEBJ) accurately, the predicted results by established theoretical model are in good agreement with experimental and FE results according to the comparison. It is revealed that the established model has universality to some extent.

Słowa kluczowe

EN

double-endplates replaceable beam-column joints; moment-rotation model; ultimate bending moment; initial rotational stiffness

PL

połączenie stalowe; konstrukcja metalowa; element kompozytowy; wstrząs sejsmiczny

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2024
• Tom: Vol. 24, no. 3
• Strony: art. no. e150, 2024
• Opis fizyczny: Bibliogr. 41 poz., fot., rys., wykr.

Twórcy

autor

Ma Xiaoming

• School of Civil Engineering, Central South University, Changsha 410075, China
• School of Civil Engineering, Chang’an University, Xi’an 710061, China

autor

Jiang Liqiang

• School of Civil Engineering, Central South University, Changsha 410075, China

• https://orcid.org/0000-0003-1996-2026

autor

Hu Yi

• School of Civil Engineering, Central South University, Changsha 410075, China
• School of Civil Engineering, Central South University of Forestry and Technology, Changsha 410004, China

autor

Zhou Chen

• School of Civil Engineering, Central South University, Changsha 410075, China
• China Railway No. 5 Engineering Group Co. LTD, Changsha 410007, China

autor

Zheng Hong

• School of Civil Engineering, Chang’an University, Xi’an 710061, China

autor

Mi Yuxi

• School of Civil Engineering, Chang’an University, Xi’an 710061, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025)