Application of a ductile connection system to steel MRF strengthened with hinged walls
Zhang Z. Feng Y. Zhang D. Pan Z.
10 June 2024Techno-Press
Steel and Composite Structures
2024#51Issue 5487 - 498 pp.
Steel moment resisting frames (MRFs) typically have inter-story drift concentrations at lower stories during earthquakes as found from previous research. Hinged walls (HWs) can be used as structural strengthening components to force the MRFs deform uniformly along the building height. However, large moment demands are often observed on HWs and make the design of HWs non-economical. This paper proposes a method to reduce the moment demand on HWs using a ductile connection system between the MRFs and the HWs. The ductile connection system is designed with a yield strength and energy dissipation capacity, for the purpose of limiting the seismic forces transferred to the HWs and dissipating seismic energy. Nonlinear time history analyses were performed using 10 far-filed earthquakes at maximum considered earthquake level. The analysis results show that the proposed ductile connection system can reduce: (1) seismic moment demands in the HWs; (2) floor accelerations; (3) the connection force between HWs and MRFs. Copyright
ductile connection system , hinged wall , seismic performance , steel moment resisting frame
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Thornton Tomasetti Inc., 120 Broadway, New York City, United States
School of Civil Engineering, Hefei University of Technology, Hefei, China
School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan City, Kazakhstan
Department of Civil and Environment Engineering, School of Engineering and Digital Sciences, Nazarene University, Astana, Kazakhstan
Thornton Tomasetti Inc.
School of Civil Engineering
School of Engineering and Digital Sciences
Department of Civil and Environment Engineering
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