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Seismic Performance Evaluation Of Building Structures Modified With Special Concentrically Braced Frames (SCBF) Yanisfa Septiarsilia; Eka Susanti; Dita Kamarul Fitriyah; Dewi Pertiwi; Umbu Miron
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 11 No 1 (2026): MARET
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v11i1.1617

Abstract

The Concentrically Braced Frame (CBF) system utilizes diagonal steel bracing members to enhance structural stiffness and dissipate seismic energy, thereby reducing potential damage to primary structural elements. CBF systems are classified into Special Concentrically Braced Frames (SCBF) and Ordinary Concentrically Braced Frames (OCBF), which are applied in high and moderate-to-low seismic regions, respectively. This study evaluates the modification of an existing 13-story hotel building into an SCBF system in accordance with the latest Indonesian seismic design provisions. The research methodology includes a literature review on SCBF design principles and the most recent SNI standards, preliminary design, numerical modeling, and dynamic analysis using SAP2000. The structural behavior parameters evaluated in this study include mass participation, fundamental period (time period), and interstory drift. The results indicate that both the existing structure with a Dual System (SMRF and shear wall) and the SCBF-modified structure satisfy the minimum 90% mass participation requirement specified in SNI 1726:2019, with the SCBF system achieving this criterion using fewer vibration modes. However, the evaluation of the fundamental period shows that the existing structure remains within the allowable code limits, whereas the SCBF-modified structure exceeds the maximum permitted fundamental period, indicating increased structural flexibility and insufficient lateral stiffness. In terms of interstory drift performance, both structural systems comply with the drift limits specified in SNI 1726:2019; nevertheless, the Dual System demonstrates superior lateral deformation control compared to the SCBF system. Therefore, it can be concluded that the structural modification using the SCBF system in this study was not successful in replacing or outperforming the existing Dual System. Although the SCBF configuration meets certain code requirements, it does not provide adequate lateral stiffness nor improved seismic performance compared to the original structural system.
Co-Authors Abdi Hakiki Agusdini, Theresia Maria Ahmad Wahyu Setiawan Alifa, Asyika Nur Apriyanto, Arie Fauzi Ari Gandhi Sabban Arifin, Moch.Ali Arintha Indah Dwi Syafiarti Armijon . Awalya, Rahmannisa Syifa Bantot Sutriono, Bantot Boedi Wibowo Christin Mardiana Chriswanto, Evelyn Jennis Clarence, Johann Dewi Astuti Dewi Kusumaningrum Diah Listyaningsih Dita Kamarul Fitriyah Dumilah, Jelita Retno Eka Susanti Eka susanti Eka Susanti Eko Rahmadi Endang Kasiati Eugene, Rebecca Farchan, Muchamad FAUZI, HARIS Felicia Tria N Ferdian Adhitia Ferdian Adhitia Ananda Gemiartha, Celine Morgan Godwin, Danniel Tristano L. Gunawan, Marvel Gustiaranti, Audrey Agdennia Hadap, Billy Mathew Hakiki, Abdi Hapsari, Rachel Cintantya Hayat, Nurul Hendrik Kusuma Atmaja Heri Istiono Ibram Bramasta Arifin Ihsanul Hafiz Indra Komara Indra Komara, Indra Istiono, Heri Jaka Propika Jaka Propika Jenny Caroline Kania Laelawati Kartiko, Andi Susilo Katili, Kevin Kempa, Sesilya Khoir, Fatihul Kurnia Hadi P Kurnia Hadi Putra Kurniawan, Abraham Ivan Kurniawan, Mochammad Rizky Mahendra Nata, Eric Vianto Maulana Maulana, Maulana Melinda, Graceline Michella Beatrix Mila Kusuma Wardani Muhammad Risky Mahensa Muliadji, Adelia Natalia, Vicencia Giovenna Nur Laelatul Fadiyah Nurul Rochmah Ori Feizal Qirom Pratama, Eric Prayogo, Nathania Cherryl Qirom, Ori Feizal Rahardjo, Richie Farandy Rahmalia Salma Rahmasari, Anggraeni Ratih Indriyani Rio Andri Ansyah Risky Murinda Ryanditama Pramudya Santoso, Nicholas Adi Sekartadji, Ratih Setiadiwiria, Mahersya Christiani Siti Choiriyah Sofian, Merviona Sudarsono, Jethson Edbert Sugianto, Kenneth Suprapto, Widjojo Teguh, Ansella Jovita Theresia Maria CA Theresia Maria CA Theresia MCA Triaswati MN Triaswati Triaswati Umbu Miron Umbu Miron Wahyu Setiawan, Ahmad Wijaya, Feysya Sandrina Wiranata, Destya Wongso, Samuel Alfred Yanisfa Septiarsilia Yonatan Gidio