Seismic behavior and strength evaluation of roof exterior beam-column joints with transverse beams on both sides: With eccentricity and slabs as variables

IF 3.9 2区工程技术 Q1 ENGINEERING, CIVIL

Structures Pub Date : 2025-03-20 DOI:10.1016/j.istruc.2025.108681

Su-Hyeon Jeong , Yogi Cahyadi , Min Jae Park , Chang-Hwan Lee

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引用次数: 0

Abstract

In this study, quasi-static cyclic tests were conducted to evaluate the behavior of roof exterior beam-column joints with non-seismic detailing. Four specimens were prepared, consisting of knee joints with transverse beams on both sides. The variables included eccentricity and the presence of slabs. All specimens exhibited joint shear failure and demonstrated significantly greater vulnerability during the opening action compared to the closing action. Specimens with slabs demonstrated increased strength and reduced cracking during the closing action. However, during the opening action, cracking around the bottom face of the beam increased, without notable changes in strength. When joint shear failure occurred, the predicted strength based on ASCE 41 differed from the experimental results. This discrepancy was attributed to the effects of the slabs and transverse beams, as well as the differences between the opening and closing actions, which were not considered in the standard. Based on the strength evaluation and a comprehensive analysis of various factors, recommendations for future codes and standards are proposed.

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来源期刊

Structures Engineering-Architecture

CiteScore

5.70

自引率

17.10%

发文量

1187

期刊介绍： Structures aims to publish internationally-leading research across the full breadth of structural engineering. Papers for Structures are particularly welcome in which high-quality research will benefit from wide readership of academics and practitioners such that not only high citation rates but also tangible industrial-related pathways to impact are achieved.