Frontiers in Built Environment (Aug 2024)

Wind-resistance and seismic behavior of a steel frame elevator with square hollow section members and semi-rigid joints

  • Bi-Da Zhao,
  • Chao-Chao Xu,
  • Hao-Chuan Zhu,
  • Hao-Chuan Zhu,
  • Rui-Sheng Chen,
  • Jia-Li Wu,
  • Yuan-Sen Qi,
  • Zhen-Fen Jin,
  • Zhen-Fen Jin

DOI
https://doi.org/10.3389/fbuil.2024.1463663
Journal volume & issue
Vol. 10

Abstract

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This article presents a study of the wind-resistance and seismic behavior of steel frame elevator structures with square hollow section (SHS) members. The study was conducted by numerical analysis, it begins by examining the semi-rigid performance of SHS T-joints (beam-column joints) under in-plane bending moment, proposes a semi-rigid connection model for the joints, and then investigates the influence of semi-rigid joint effect on the performance of the steel elevators. Finite element (FE) results showed that the semi-rigid model can predict the moment-rotation response of the beam-column joints. The results also showed that the natural vibration period of the elevator with semi-rigid joints is 20% higher than that of an elevator with rigid joints. The semi-rigid joint effect causes the lateral drift of the elevator to increase by more than 47% under wind load, causing the maximum story drift of the elevator to exceed the limit specified in the current code. The semi-rigid joint effect causes the lateral displacement of the elevator to increase by approximately 15%–30% under the seismic waves of a rare earthquake.

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