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CONNECTION MODEL OF CONCRETE FILLED STEEL TUBE (CFT) COLUMN TO STEEL BEAM UNDER CYCLIC Agustina D. Atmaji; Budi Suswanto; Endah Wahyuni
Journal of Civil Engineering Vol. 34 No. 1 (2019)
Publisher : Institut Teknologi Sepuluh Nopember (ITS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v34i1.7463

Abstract

Various types of structural technology began to develop rapidly, one of which was composite steel. Composite steel (Concrete Filled Steel Tube) is a structure consisting of two or more materials with different material properties and form one unit so as to produce better combined properties. Compared to conventional steel, this column has many advantages such as convenient formwork for concrete cores provided by steel tubes, increased strength and good ductility. This study uses the CFT column as the main variable by considering variations in the CFT column on the connection using ABAQUS. Modeling was carried out with a test object of 203 × 133 × 7.8 × 5.8 mm and the CFT column dimensions of rectangular 220 × 220 × 6 mm, and circular Ø 220 mm t = 8 mm. The research method uses two steps static-general method with static-risk. The results of these two research methods have the results of approaching and having the same behavior. Modeling has fulfilled the requirements of modeling the column-beam joints that can be used in a system of earthquake-resistant reinforced steel composite concrete frame structures. Based on the modeling results that have been done, modeling has fulfilled the connection that has sufficient ductility capability.
STUDI PERILAKU PADA SAMBUNGAN RECTANGULAR CONCRETE FILLED TUBES (RCFT) DENGAN METODE FINITE ELEMENT Cintantya Budi Casita; Budi Suswanto
Journal of Civil Engineering Vol. 32 No. 1 (2017)
Publisher : Institut Teknologi Sepuluh Nopember (ITS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v32i1.7510

Abstract

This research presents the result of two rectangular filled tube column-to-beam connections under cyclic loadingusing finite element analysis. Connections of all two models were using weld connection and shear tab attached to beamwebs. In this study, 2 models were made: RR-1 and RB-2, which are RCFT connection with RBS and RCFT connectionwithout RBS. This study is conducted to learn, the advantages of RCFT connection with RBS against RCFT connectionwithout RBS. The analysis results observed that cyclic performance of the RBS moment connection was much superior to theconnection without RBS. The highest regions of stress occur in vicinity of beam bottom flange near column face forconnection without RBS. For connection with RBS, the highest regions of stress occur in reduced beam section of the beam.
STUDI PERILAKU LINK PENDEK, LINK MENENGAH DAN LINK PANJANG PADA STRUKTUR BAJA SISTEM EBF Jusuf Wilson Meynerd Rafael; Budi Suswanto
Journal of Civil Engineering Vol. 32 No. 1 (2017)
Publisher : Institut Teknologi Sepuluh Nopember (ITS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v32i1.7511

Abstract

The paper disccuses an analysis study on the design of Eccentrically Braced Frame (EBF) i.e. short link,intermediate link and long link) with K-Braces-type Split 1 floor. The analysis is performed by using ABAQUS with staticmonotonic loading in a single structure (frame). Each element of the frame is modeled as sholid 3D with connections to everyelement in the form of tie constraints and given fixed on each base of the column as a boundary condition. All three models ofthe frame has been analyzed in accordance with the AISC 2010 provisions and then compared the behavior of each of thesemodels. The results indicate that the short link model considered in this study have on a higher over strength value and usedas a proposed model when compared to intermediate link and long link model. It is stated by the failure mechanism as well,the failure is well-occurred in the short link condition than the other models.
Optimasi Kinerja Seismik Sambungan Struktur untuk Aplikasi Rekayasa Teknik Sipil Suswanto, Budi; Casita, Cintantya Budi; Chiu, Chien-Kuo; Triwulan, Triwulan; Masiran, Hidayat Soegihardjo; Kristijanto, Heppy; Iranata, Data
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.68632

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.
EVALUASI STRUKTUR EKSISTING GEDUNG GRAHA PT PETROKIMIA GRESIK Muhammad Wahyu Firdani; Muhammad Sigit Darmawan; Budi Suswanto; Gentur Prihantono
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 01 (2026): Volume 12 No. 01, Maret 2026 Published
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v11i04.10974

Abstract

This paper discusses the Evaluation of the Existing Structure of the Graha Building of PT Petrokimia Gresik. The building was constructed on December 6, 2021, and handed over on June 28, 2023. However, in August 2025, cracks were discovered in the rear section of the building. These cracks were found in areas such as the staircase access from the 1st to the 2nd floor, the head office's room, and on beams across several floors. Consequently, a special identification of this damage is required, encompassing visual inspection, concrete surface hardness testing, concrete core sampling, and analysis using SAP2000. Therefore, a technical study is necessary to analyze the structural strength of the existing building. Based on the structural system analysis, the selected strengthening methods are: Adding new post columns using IWF 250 x 250 sections, Injecting the concrete cracks, Strengthening the cantilever beams using Carbon Fiber Reinforced Polymer (CFRP). Furthermore, risk mitigation for these work methods is required to ensure the project implementation can be completed safely.
Investigation of Slit Link Behavior with Wide-Flange (WF) Sections in Eccentrically Braced Frames (EBFs) Wilson Meynerd Rafael, Jusuf; Suswanto, Budi; Chiu, Chien-Kuo; Iranata, Data; R. Amalia, Aniendhita; Ghifari, Fikri
Civil Engineering Journal Vol. 12 No. 3 (2026): March
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2026-012-03-08

Abstract

This study investigates the seismic performance of slit link configurations using wide-flange (WF) sections within eccentrically braced frames (EBFs), addressing the limited application of slit geometries in practical steel construction. The objective is to evaluate the influence of slit shape and width on shear strength, ductility, and energy dissipation, while ensuring damage localization within the link element. Six analytical models were developed, including conventional links (CV and CV-ST) and slit variants (SL-1 to SL-4), and analyzed through nonlinear finite element simulations in ABAQUS under the AISC 341-22 cyclic loading protocol. The analysis focused on stress distribution, hysteretic response, backbone curve stability, and energy dissipation. Results show that conventional links provide higher peak shear strength and energy absorption but transmit stresses into adjacent members, increasing repair complexity. In contrast, slit links confine plastic deformation within the link region, enhancing ductility and repairability at the expense of reduced strength. Among the slit variants, the parabolic slit (SL-4) demonstrated smoother stress redistribution and improved cyclic stability compared to rectangular slits. The novelty of this research lies in embedding slit geometries directly into WF profiles, offering a cost-effective fuse mechanism that bridges theoretical slit damper concepts with real-world EBF applications.
STUDI NUMERIK PERILAKU SAMBUNGAN HAUNCHED BOLTED EXTENDED END PLATE AKIBAT BEBAN SIKLIK BERDASARKAN VARIASI SUDUT Ananda Fersanti, Syarifah Nur’ain; Suswanto, Budi
TAPAK [Teknologi Aplikasi Konstruksi] : Jurnal Program Studi Teknik Sipil Vol 15, No 2 (2026): Mei 2026
Publisher : Prodi Teknik Sipil Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/tp.v15i2.5183

Abstract

Sambungan merupakan komponen penting dalam struktur baja, memainkan peran signifikan dalam menentukan kinerja struktural secara keseluruhan, terutama di bawah beban siklik akibat efek seismik. Studi ini bertujuan untuk menganalisis pengaruh variasi sudut haunch pada perilaku sambungan pelat ujung yang diperpanjang dengan baut dan haunch di bawah beban siklik menggunakan metode elemen hingga. Analisis dilakukan dengan memodelkan tiga variasi sudut haunch, yaitu 25°, 35°, dan 45°, menggunakan perangkat lunak ABAQUS. Pemodelan mencakup elemen padat tiga dimensi, perilaku material elastis-plastik, dan interaksi kontak dengan kendala pengikat di dalam sambungan. Hasil validasi terhadap data eksperimental menunjukkan bahwa model numerik menunjukkan kesesuaian yang baik dalam merepresentasikan respons struktural. Hasil menunjukkan bahwa semua spesimen menunjukkan perilaku nonlinier yang stabil dengan respons histeresis yang relatif simetris dan tidak ada degradasi kekuatan yang signifikan. Variasi sudut haunch secara signifikan memengaruhi kapasitas, kekakuan, dan daktilitas sambungan. Spesimen dengan sudut penopang 35° menunjukkan kinerja paling optimal, mencapai kapasitas beban maksimum 758,48 kN, momen maksimum 586,24 kN·m, dan kekakuan awal tertinggi 184,26 kN/mm, serta kapasitas deformasi yang baik yang ditunjukkan oleh rotasi maksimum 0,0051 rad. Spesimen dengan sudut penopang 45° menunjukkan kekakuan awal yang relatif tinggi sebesar 178,34 kN/mm; namun, memiliki kapasitas yang lebih rendah dan kemampuan deformasi yang lebih terbatas. Sementara itu, spesimen dengan sudut penopang 25° menunjukkan kekakuan dan kapasitas terendah, meskipun menunjukkan kecenderungan yang lebih besar untuk deformasi plastis. Distribusi tegangan maksimum terkonsentrasi di daerah penopang, pelat ujung, dan di sekitar lubang baut, menunjukkan peran dominan komponen-komponen ini dalam mekanisme transfer gaya. Secara keseluruhan, sudut penopang 35° memberikan keseimbangan terbaik antara kekuatan, kekakuan, dan daktilitas, dan mampu mempertahankan kinerja struktural optimal di bawah beban siklik
Analisis Risiko Keselamatan dan Kesehatan Kerja pada Pembangunan Villa Karang dengan Metode Job Safety Analysis Ni Wayan Medita Santipa Tori; Budi Suswanto; Ngakan Ketut Acwin Dwijendra
Jurnal Teknik Sipil Vol 6, No 1 (2025)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jts.2025.v6i1.7751

Abstract

Proyek pembangunan Villa Karang yang berlokasi di Ubud, Bali yang terdiri atas 14 tahapan pada pekerjaan bangunan villa, mulai dari pekerjaan persiapan hingga pekerjaan finishing. Selain itu, pekerjaan kolam renang memiliki 6 tahapan tersendiri. Tujuan penelitian ini adalah mengidentifikasi potensi bahaya dan pengendalian pada pekerjaan pembangunan Villa Karang. Metode yang digunakan untuk mengidentifikasi potensi bahaya yaitu menggunakan metode Job Safety Analysis (JSA). Total potensi bahaya pada pekerjaan pembangunan villa karang yaitu sebanyak 169 potensi bahaya, dengan 117 potensi pada bangunan villa (8 risiko rendah, 82 risiko sedang, 26 risiko tinggi dan 1 risiko ekstrim), serta 52 potensi pada kolam renang (4 risiko rendah, 29 risiko sedang dan 19 risiko tinggi). Upaya pencegahan dan pengendalian potensi bahaya mencakup memastikan penggunaan alat kerja yang sesuai prosedur, pada beberapa pekerjaan tertentu membutuhkan pekerja dengan skill khusus, serta meningkatkan komunikasi antara perusahaan dan pekerja. Selain itu penggunaan Alat Pelindung Diri (APD) yang lengkap menjadi faktor penting dalam mencegah kecelakaan kerja, namun dalam proyek tersebut masih dapat kekurangan dalam penyediaannya. Sehingga dilakukan perhitungan estimasi biaya APD, hasil yang didapatkan yaitu sebesar Rp 19.778.033. Hasil perhitungan ini membantu perusahaan merencanakan anggaran dengan memasukkan biaya APD ke dalam RAB secara optimal. Tujuan dari laporan ini yaitu untuk menerapkan JSA sesuai dengan peraturan yang ada sehingga dapat dilakukan identifikasi potensi bahaya dan menentukkan pengendalian serta pencegahan pada pekerjaan pembangunan Villa Karang. 
Co-Authors Ade Asmi Agustina D. Atmaji Agustina Dwi Atmaji Al Anshori, Moh. Irfan Al Rasyid, Harun Ananda Fersanti, Syarifah Nur’ain Aniendhita R. Amalia Aniendhita Rizki Amalia Apriansyah Apriansyah Ardiansyah, Giri Teguh Arif Rijal Arina Desye Hariyanti Arrahmatur Rizqi Aulia Indira Kumalasari Axel Ricardo Santoso Bambang Piscesa Basshofi Habieb Butje Alfonsius Louk Fanggi Cahyono, Achmad Rudy Chiu, Chien-Kuo Cintantya Budi Casita Darmawan, Kevin Candra Darmawan, Muhammad Sigit Data Iranata Dinar, Bala Arizalu Putra Diputra, Aditya Tamateja Dita Kamarul Fitriyah Dita Kamarul Fitriyah Dzul Fikri Muhammad Endah Wahyuni Endah Wahyuni Endah Wahyuni Fikri Ghifari Fikri Ghifari Fikri Ghifari Gentur Prihantono Gentur Prihartono Ghifari, Fikri Habibillah Asyari, Yudhistira Habieb, Ahmad Basshofi Harun Al-Harun Haykal Wildan Tamimi El Jauhari Heppy Kristijanto Heppy Kristijanto Hernadi, Ahmad Hidajat Sugihardjo Hidajat Sugihardjo Hidajat Sugihardjo Hidajat Sugihardjo Hidajat Sugihardjo Hidayat Soegihardjo Husin, Nur Ahmad Ida Ayu Putu Eka Chandra Saraswati Ifarrel Rachmanda Hariyanto Indarto, Richo Oktavian Indra Komara, Indra Irawan, Djoko Jonatan Lassa Jonatan Lassa Jusuf Wilson Meynerd Rafael Jusuf Wilson Meynerd Rafael Kevin C. Darmawan Khala, Christianto Credidi Septino Kumalasari, Aulia Indira Louk Fanggi, Butje Alfonsius M. Sigit Darmawan Masahide Matsumura Masiran, Hidajat Sugihardjo Masiran, Hidayat Soegihardjo Merisa Ayu Pramesti Meynerd Rafael, Jusuf Wilson Moh F. Rosyidi Moh. Fadhlan Rosyidi Moneta, Rendy - Muhammad Sigit Darmawan Muhammad Syamsu Bachri Muhammad Wahyu Firdani Muhammad Zulfikar Fauzi Murti, Gandhi Wisnu Hari Nadiva, Annasia Faza Ngakan Ketut Acwin Dwijendra Ni Wayan Medita Santipa Tori Njoko, Fillbert Nufrizal Faried Hanafi Nur Ahmad Husin Nuur Aziza Setiyowati Pramesta Armanisag Pangestuti Prihantono, Gentur Priyo Suprobo R. Amalia, Aniendhita R. Soewardojo Rahmanita Nuzula Raka, I Gusti Putu Rambak, Ezra Pasereng Ridho Bayu Aji Ridho Bayuaji Rijiyawanto, Adetya Rosyidi, Moh Fadhlan RPX Rooswan Happmono Santoso, Wilman Adi Septiarsilia, Yanisfa Silalahi, Oktavia Ully Artha Sugihardjo, Hidajat Sugihardjo, Hidajat Susanto Hari Asmoro Syamsu, Rizal Nur Syifaul Ummah, Galih Tatas Tatas Titan Adya Safara Tri Widya Swastika Triwulan Triwulan Triwulan Triwulan Wilson Meynerd Rafael, Jusuf Yafie Abdillah Akbar Yanisfa Septiarsilia Yudhi Arnandha Yuyun Tajunnisa