DOI: https://doi.org/10.14710/mkts.v31i2.68632

Enhancing Seismic Performance of Structural Connections in Civil Engineering Applications

Optimasi Kinerja Seismik Sambungan Struktur untuk Aplikasi Rekayasa Teknik Sipil

*Budi Suswanto  -  Department of Civil Engineering, Faculty of Civil Engineering, Planning and Geo Engineering, Institut Teknologi Sepuluh Nopember, Indonesia
Cintantya Budi Casita orcid scopus  -  Department of Civil Engineering, Faculty of Engineering, Universitas Pembangunan Nasional Veteran Jawa Timur, Indonesia
Chien-Kuo Chiu  -  Department of Civil Engineering, Faculty of Engineering, National Taiwan University of Science and Technology, Taiwan
Triwulan Triwulan  -  Department of Civil Engineering, Faculty of Civil Engineering, Planning and Geo Engineering, Institut Teknologi Sepuluh Nopember, Indonesia
Hidayat Soegihardjo Masiran  -  Department of Civil Engineering, Faculty of Civil Engineering, Planning and Geo Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia, Indonesia
Heppy Kristijanto  -  Department of Civil Engineering, Faculty of Civil Engineering, Planning and Geo Engineering, Institut Teknologi Sepuluh Nopember, Indonesia
Data Iranata  -  Department of Civil Engineering, Faculty of Civil Engineering, Planning and Geo Engineering, Institut Teknologi Sepuluh Nopember, Indonesia

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Abstract

This study evaluates the seismic performance of steel moment-resisting frames through the integration of reduced beam sections (RBS) with externally reinforced cover plates. Three-dimensional finite element analyses under cyclic loading were conducted to assess the influence of cover plates on different RBS geometries, including radius cut (RBSCP-RC), straight cut (RBSCP-SC), tapered cut (RBSCP-TC), and drilled flange (RBSCP-DF). The objective of this study is to investigate the effects of geometric variation on seismic response, moment capacity, and ductility of hybrid RBS–cover plate (RBSCP) connections. The novelty of this research lies in the systematic development and evaluation of a hybrid RBS–cover plate connection that combines the energy dissipation capability of RBS with the strengthening function of cover plates. This configuration is intended to shift plastic hinge formation away from the column face, reduce the risk of premature weld failure, and improve connection strength and energy dissipation. The numerical results indicate that the incorporation of cover plates significantly enhances the seismic performance of RBS connections, with the radius-cut configuration demonstrating the most stable hysteretic behavior and the highest energy dissipation capacity. These findings emphasize the importance of geometric optimization in hybrid RBS–cover plate designs and provide valuable guidance for improving the seismic resilience of steel moment-resisting frames.

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Keywords: Cover plate; hysteretic response; moment capacity; reduce beam section; seismic performance

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Language : EN
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