Work

Steel frame joints with multistage performance for collaboratively resisting earthquakes

Year: 2025

Type: article

Abstract: To improve the seismic performance of buildings, the concept of multistage performance was modified based on ancient wooden buildings. A steel frame joint with a multistage performance for collaboratively resisting earthquakes is proposed based on a modified concept. A cyclic loading test of the hinged beam–column joints was conducted to verify the finite element analysis. Subsequently, the feasibility of a joint with a multistage performance was demonstrated. When the joint rotation reached the critical point, a multistage resistance was observed. In addition, the theoretical load–displacement relationship of the joint was deduced. The load–displacement curves of the joint could be accurately predicted. A simplified analysis method for the joint is presented to reveal the joint performance of the overall structure. The hysteretic curves of the refined models were estimated accurately. From the perspective of the overall structure, the maximum and residual story drift ratios decreased owing to the joint with multistage resistance. Joints with different stories collaboratively resisted earthquakes. The modified concept was verified at both the joint and overall structural levels.

Source: Soil Dynamics and Earthquake Engineering

DOI: 10.1016/j.soildyn.2025.109350

Authors: Jian-peng Wei, Han Tian, Dong-hua Wang, Li-min Tian

Institutions: Anhui Jianzhu University, Anhui Institute of Architectural Research and Design, Xi'an University of Architecture and Technology

Language: English

Topic: Seismic Performance and Analysis

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Sustainable cities and communities

Open Access status: hybrid

Estimated APC paid: $3,900