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All Journal TEKNIK REKA RACANA Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa Jurnal Teknik Sipil Journal of Engineering and Technological Sciences Jurnal Teknik Sipil Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil E-Dimas: Jurnal Pengabdian kepada Masyarakat Jurnal Rekayasa Sipil Jurnal Ilmiah Universitas Batanghari Jambi PROZIMA (Productivity, Optimization and Manufacturing System Engineering) BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Jurnal Aplikasi Teknik Sipil Jurnal Permukiman Jurnal Abdimas Mandiri JURNAL REKAYASA Jurnal ABDINUS : Jurnal Pengabdian Nusantara Menara: Jurnal Teknik Sipil Journal of Industrial Engineering and Operation Management (JIEOM) Wood Research Journal : Journal of Indonesian Wood Research Society Wood Research Journal : Journal of Indonesian Wood Research Society Journal of Economic, Business and Engineering (JEBE) Jurnal Talenta Sipil SERVIRISMA: Jurnal Pengabdian kepada Masyarakat Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Dinamika Teknik Sipil: Majalah Ilmiah Teknik Sipil Jurnal Teknik Sipil Sasambo: Jurnal Abdimas (Journal of Community Service) Journal of Green Science and Technology IJIES (International Journal of Innovation in Enterprise System)
Yosafat Aji Pranata
Universitas Kristen Maranatha
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Comparative Study of Flexural Behavior of Bolted-Laminated and Glue-Laminated Sengon Timber Beams (Albizia falcataria) Yosafat Aji Pranata; Anang Kristianto; Novi Novi
Wood Research Journal Vol 15, No 2 (2024): WOOD RESEARCH JOURNAL
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2024.15.2.43-48

Abstract

This study aimed to study the flexural behavior of bolt-laminated and glue-laminated sengon (Albizia falcataria) timber beams, which are flexural strength, modulus of rupture (MoR), and beam ductility. The study was conducted using an experimental testing method in the laboratory with reference to the ASTM D198. The number of test objects were three consecutively for bolt-laminated beams and glue-laminated beams. Results obtained from this study indicated that the flexural strength of bolt-laminated and glue-laminated sengon timber beams was not significantly different; the flexural strength of bolt-laminated beams were 3.1% higher compared to glue-laminated beams. The MoR and ductility of bolt-laminated beams were 8.4% and 14.2% higher compared to glue-laminated beams. These results indicate that the glue has an impact to the brittle behavior or limited ductility, while the bolts have an impact to make a more ductile beams. The general conclusion is that mechanical laminated timber technology can be an alternative to producing beams with larger cross-sectional sizes compared to solid timber, especially for low-grade wood, so that it can be used as part of the structural elements of buildings.
Comparative Study of Flexural Behavior of Bolted-Laminated and Glue-Laminated Sengon Timber Beams (Albizia falcataria) Yosafat Aji Pranata; Anang Kristianto; Novi Novi
Wood Research Journal Vol 15, No 2 (2024): WOOD RESEARCH JOURNAL
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2024.15.2.43-48

Abstract

This study aimed to study the flexural behavior of bolt-laminated and glue-laminated sengon (Albizia falcataria) timber beams, which are flexural strength, modulus of rupture (MoR), and beam ductility. The study was conducted using an experimental testing method in the laboratory with reference to the ASTM D198. The number of test objects were three consecutively for bolt-laminated beams and glue-laminated beams. Results obtained from this study indicated that the flexural strength of bolt-laminated and glue-laminated sengon timber beams was not significantly different; the flexural strength of bolt-laminated beams were 3.1% higher compared to glue-laminated beams. The MoR and ductility of bolt-laminated beams were 8.4% and 14.2% higher compared to glue-laminated beams. These results indicate that the glue has an impact to the brittle behavior or limited ductility, while the bolts have an impact to make a more ductile beams. The general conclusion is that mechanical laminated timber technology can be an alternative to producing beams with larger cross-sectional sizes compared to solid timber, especially for low-grade wood, so that it can be used as part of the structural elements of buildings.
Uji Beban (Load Test) Pelat Lantai dan Balok Pada Gedung GKI Gading Serpong Jakarta Kristianto, Anang; Pranata, Yosafat; Wiyono, Daud Rahmat; Suhanda, Felix; Shidney Rapar, Keysie Chelsie
Jurnal Abdimas Mandiri Vol. 10 No. 1 (2026)
Publisher : UNIVERSITAS INDO GLOBAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36982/jam.v10i1.6960

Abstract

Kegiatan Pengabdian kepada Masyarakat (PkM) ini merupakan hasil pemanfaatan teknologi uji beban dengan mitra PkM pengurus Gereja Kristen Indonesia (GKI) Gading Serpong. Metode kegiatan PkM yaitu pengujian eksperimental non-destruktif untuk mendapatkan data mutu material pada bangunan eksisting. Dalam proses pembangunan Gedung Gereja GKI Gading Serpong ditemukan ketidaksesuaian antara mutu beton hasil pengecoran di lapangan dengan mutu beton yang direncanakan. Untuk memastikan keamanan dan kemampuan struktur sesuai standar perencanaan, dilakukan pengujian beban (load test) sebagai bagian dari evaluasi teknis berbasis kondisi aktual lapangan. Pengujian dilakukan dengan metode pembebanan statistik monotonik selama periode pengamatan tertentu untuk merepresentasikan beban layanan. Hasil pengolahan data lendutan kemudian dibandingkan dengan batas layan yang dipersyaratkan dalam standar perencanaan struktur. Selanjutnya hasil pengujian menunjukkan bahwa lendutan maksimum yang terjadi pada balok kantilever maupun pelat masih berada dalam batas layan yang diizinkan. Setelah beban dikurangi, terjadi pemulihan deformasi yang signifikan sehingga elemen struktur kembali mendekati kondisi awal. Hasil kegiatan PkM memberikan informasi dan rekomendasi kepada mitra bahwa elemen struktur yang diuji dinyatakan aman dan layak untuk dilanjutkan sesuai tahapan konstruksi.
EVALUASI KINERJA RUMAH MODULAR RUSPIN TIPE 27 DENGAN RUBBER BASE ISOLATION Pranata, Yosafat; Johnny Rakhman
Journal of Economic, Business and Engineering (JEBE) Vol. 7 No. 2 (2026): April
Publisher : Universitas Sains Al Qur'an

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32500/jebe.v7i2.11003

Abstract

Penelitian ini bertujuan mempelajari evaluasi kinerja rumah modular RUSPIN tipe 27 dengan dan tanpa rubbber base isolation dengan menggunakan metode analisis statik pushover. Penelitian ini menggunakan metode analisis numerikal metode elemen hingga untuk membuat pemodelan dan analisis bangunan rumah RUSPIN tipe 27 secara tiga dimensi untuk mendapatkan luaran yaitu kurva kapasitas bangunan gedung dan kurva spektrum kapasitas. Ruang lingkup penelitian yaitu analisis struktur untuk mendapatkan informasi kurva kapasitas dan spektrum kapasitas menggunakan metode analisis statik pushover, bangunan terletak di Bali dengan nilai SDs sebesar 0,58g dan SD1 sebesar 0,21g, perilaku dan evaluasi kinerja yang dipelajari adalah kekakuan (deformasi) struktur akibat beban gempa. Hasil penelitian mengindikasikan bahwa RUSPIN tipe 27 dengan rubber base isolation (RBI) menghasilkan perilaku kekakuan yang lebih rendah dibandingkan tanpa RBI, serta gaya dalam yang terjadi pada balok dan kolom lebih rendah juga. RBI berfungsi mereduksi gaya lateral (gempa) yang masuk ke bangunan. Bangunan mempunyai tingkat kinerja Immediate Occupancy (ATC-40). Hal ini mengindikasikan bahwa bangunan dapat difungsikan kembali pasca bencana tanpa terjadi kerusakan struktural.
KAJIAN PERILAKU SEISMIK BANGUNAN KAYU BERUSIA MASA LAYAN 4-5 TAHUN DI ZONA GEMPA TINGGI KABUPATEN BANDUNG Pranata, Yosafat; Hanny Juliani Dani; Novi, Novi; Keysie Chelsie Shidney Rapar
Journal of Economic, Business and Engineering (JEBE) Vol. 7 No. 2 (2026): April
Publisher : Universitas Sains Al Qur'an

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32500/jebe.v7i2.11099

Abstract

Penelitian bertujuan mempelajari perilaku seismik dua bangunan kayu eksisting yang berlokasi di desa Indragiri, kecamatan Rancabali, kabupaten Bandung. Metode penelitian yaitu metode numerik analisis struktur tiga dimensi dengan modulus elastisitas kayu menggunakan acuan data dari bangunan eksisting. Urgensi penelitian yaitu perlunya monitoring berkala bangunan untuk mendeteksi potensi kerusakan dan tindakan perbaikan yang diperlukan. Ruang lingkup penelitian yaitu respons spektra gempa sesuai lokasi bangunan eksisting, data sifat mekanika kayu diperoleh dari referensi hasil pengujian mutu material bangunan eksisting, beban gempa rencana diperhitungkan dengan metode analisis statik ekivalen. Data pembanding yaitu kondisi bangunan mula-mula ketika mulai difungsikan. Hasil penelitian menunjukkan bahwa kekakuan kedua bangunan mengalami penurunan meskipun tidak signifikan dan tidak melampaui batasan ijin drift acuan SNI 1726:2019. Kapasitas kolom dan balok bangunan eksisting secara umum juga mengalami penurunan dibandingkan kondisi bangunan mula-mula, namun demikian kapasitasnya lebih tinggi dibandingkan gaya dalam yang bekerja, hal ini mengindikasikan bahwa struktur mempunyai kapasitas kekuatan yang cukup. Hasil penelitian secara umum menghasilkan kesimpulan yaitu tidak diperlukan perbaikan pada kedua bangunan.
Studi efektifitas penggunaan dinding geser pada bangunan hotel 15 lantai di Magelang, Jawa Tengah Faraz Haiatul Maknun; Yosafat Aji Pranata
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa Vol. 14 No. 2 (2025)
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.14.2.12550.285-297

Abstract

Earthquake-resistant buildings are structures designed to withstand lateral loads caused by earthquakes without damaging their structural elements. One effort that can be made is to use shear walls in medium-rise buildings. The purpose of this study is to study the behavior of the Aloon-Aloon Hotel multi-storey building located in Magelang City, which has medium soil characteristics with SDS of 0.61g and SD1 of 0.45g, risk category II. The scope of the study is a comparative study of buildings modeled with and without shear walls. Earthquake load planning refers to SNI 1726:2019 with the equivalent static analysis method. The process of modeling the building structure in this study uses three-dimensional structural analysis software based on the finite element method to study the behavior of the structure due to gravity loads and lateral loads. The results of the study are that buildings with shear walls have a higher building structure volume of 7.74% (shear walls, columns, beams) than buildings without shear walls (columns and beams). However, the use of shear walls produces lower deviation and capital values compared to buildings without shear walls, so that the building has high lateral stiffness in resisting lateral loads (designed earthquake loads). This shows that the use of shear walls significantly improves the strength and stiffness performance of structures in medium-rise buildings.
A Comparative Analysis of Equivalent Static and Time History Dynamic Methods: Low-Rise Mall Building Case Study Prasodjo, Kaira Jesusa; Pranata, Yosafat Aji
Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Vol 14 No 1 (2026): Jurnal Konstruksi dan Infrastruktur Vol 14 No.1 : April 2026
Publisher : Civil Engineering Department, Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jki.v14i1.11754

Abstract

Earthquake-resistant buildings are structures designed to safely withstand both of lateral and gravity loads. The purpose of this study is to analyze the behavior of the structural, which are stiffness and strength under lateral seismic loads using equivalent static analysis and time history dynamic analysis. The maximum displacement occurs at the 5th floor, reaching 27,34 mm (X-direction) and 29,99 mm (Y-direction). These results, from comparing both analysis methods, remain below the allowable limit of 70 mm per SNI 1726:2019. Strength evaluation, based on internal force demands indicates that beam and column capacities satisfy SNI 2847:2019 requirements. The flexural and shear capacities of beams and columns were verified using the design criteria Mu < ϕMn and Vu < ϕVn, confirming that the structural elements are able to resist the applied bending moments and shear forces safely. In general, the 5-storey mall building in Magelang City shows strength and stiffness behavior that meets the strength and stiffness requirements, using both equivalent static analysis and time history dynamic analysis.
Model Prediksi Kerugian Bangunan Hunian Bertingkat Rendah Eksisting dengan Risiko Kegempaan Tinggi Sugianto, Joesack Renaldi; Pranata, Yosafat Aji
RekaRacana: Jurnal Teknik Sipil Vol 12, No 1: Maret 2026
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaracana.v12i1.20

Abstract

ABSTRAKPenelitian ini mengembangkan model prediksi kerugian gempa untuk bangunan hunian bertingkat rendah eksisting pada wilayah dengan risiko kegempaan tinggi. Empat tipe rumah (A–D) dimodelkan sebagai Reinforced Masonry Walls (RM1) dan dianalisis menggunakan SAP2000 melalui analisis pushover berdasarkan FEMA 440 untuk memperoleh kurva kapasitas serta performance point. Parameter kurva kapasitas Hazus kemudian dimodifikasi menggunakan hasil pushover agar lebih merepresentasikan kondisi konstruksi lokal. Estimasi kerugian dilakukan dengan menghitung probabilitas tingkat kerusakan (damage state) dan loss ratio, lalu dikonversi menjadi kerugian moneter per unit bangunan. Hasil menunjukkan prediksi kerugian menggunakan Hazus orisinal relatif seragam antartipe, sedangkan Hazus modifikasi menghasilkan loss ratio lebih tinggi dan lebih sensitif terhadap perbedaan tipologi rumah. Model ini dapat digunakan sebagai alat skrining cepat untuk menentukan prioritas mitigasi/retrofit pada perumahan sejenis.Kata kunci: Hazus, kerugian gempa, performance point, pushover ABSTRACTThis study develops a seismic loss prediction model for existing low-rise residential buildings in a high-seismic-hazard area. Four house typologies (A–D) are classified as reinforced masonry walls (RM1) and analyzed in SAP2000 using FEMA 440 pushover procedures to obtain capacity curves and performance points. Hazus capacity curve parameters are then modified using the pushover results to better represent local construction characteristics. Seismic losses are estimated by computing damage state probabilities and loss ratios, which are converted into monetary losses per building unit. Results indicate that the original Hazus approach yields relatively uniform loss estimates across typologies, whereas the modified Hazus model produces higher and more typology-sensitive loss ratios. The proposed model can support rapid screening and prioritization of mitigation/retrofit measures for similar housing clusters.Keywords: Hazus, seismic loss, performance point, pushover
Evaluasi Level Kinerja Bangunan Gedung Kayu Bertingkat Rendah Akibat Beban Gelombang Yosafat Aji Pranata; Fadlillah Ariani Suroso; Bernardinus Herbudiman
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 9 No 1 (2021): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v9i1.2197

Abstract

Several coastal areas in Indonesia are at risk of moderate to high tsunami disasters, this is related to the condition that Indonesia is located in an earthquake high risk area. At this time there are many buildings located on the coast with a low-rise stilt house system with the main structural system, namely beams and columns using timber materials. The building structure design includes the performance evaluation process, namely strength, stiffness and structural stability. The purpose of this research is to study the evaluation behavior of performance levels, especially the strength and stiffness of low-rise timber buildings, namely the level of structural performance due to gravity and lateral loads, namely sea waves. The research scope is a three-story building with a beam and column frame structure system. Columns are circular and beams have a square cross section. The loads taken into account are gravity and lateral. The strengths discussed are the bending capacity of the beam and the compressive capacity of the column. In order to obtain building behavior that is closer to real conditions, especially in beam-column joints, secondary data is used, namely empirical data on the envelope load-deformation curve of the beam-column joint test results in the laboratory (modeled as link property). Evaluation of structural performance begins with structural analysis using SAP2000 software, to obtain internal forces and building drift. The results show that the use of link properties in beam-column joint joints in the timber building structures shows greater deformation results compared to rigid joint models, this indicates that modeling the structure with beam-column joint joints modeled as link property has an impact on building stiffness. Lower and represents the condition of a timber building with beam-column joint characteristics closer to the actual condition. The existence of a hole size in the column (to insert the beam) which is larger than the cross-sectional size of the beam results in the rotation of the joint not being zero and a slip occurs when the joint works to transmit internal forces.
Co-Authors AAN DARMAWAN Alfatama, Jasen Anang Kristianto Andrias Suhendra Nugraha Ary Dharmawan Bambang Suryoatmono Bas Boys, Maher Salal Hesy Bernardinus Herbudiman Bernardinus Herbudiman Bernardinus Herbudiman Bernardinus Herbudiman, Bernardinus Boys, Salal Hesy Bas Calvien Haryanto Chandra, Jonathan Daud R. Wiyono Daud Rahmat Wiyono Dedi Hadian Delima Delima Deni Setiawan DENI SETIAWAN Deni Setiawan Deni Setiawan Dharmawan, Ary Elty Sarvia Fadlillah Ariani Suroso Faraz Haiatul Maknun Frisda, Tani Gaol, Ricky Fransiskus Lumban Ginardy Husada Hagiyanto, Sofhie Angela Hanny Juliani Dani Hartono, Sutantra Hendry Wong Hutasoit, Aldi Febri Iswandi Imran Jimmy Agustian Loekito Jimmy Agustian Loekito Johannes Adhijoso Tjondro Johnny Rakhman Kevin Tjahyadi Keysie Chelsie Shidney Rapar Laia, Viencent Cheristian Lehman, Andrew Sebastian Loekito, Jimmy Agustian Maknun1, Faraz Haiatul Maria Christine Sutandi Markus Tanubrata Marvin Chandra Wijaya Michael Wijaya Muhammad Rusli Nathan Madutujuh Noek Sulandari Noek Sulandari Noek Sulandari Noek Sulandari Novi Novi Novi Soesilo Novie Theresia Br. Pasaribu Olga Catherina Pattipawaej Pin Panji Yapinus, Pin Panji Prasodjo, Kaira Jesusa Pricillia Sofyan Tanuwijaya Riko Arlando Saragih Robby Yussac Tallar Roi Milyardi Roky Surono Saputra, Yonathan Adi Saudila, Aulia Jessica Semuil Tjiharjadi Shidney Rapar, Keysie Chelsie Simanta, Djoni Soesilo, Novi Sugianto, Joesack Renaldi Suhanda, Felix Suhendar, Prabu Mandvi Hafiz Anjar Suroso, Fadlillah Ariani Syafarina Nurmah Rialita Verena Bernadetta C. N Viencent Cheristian Laia Wiyono, Daud R Wiyono, Daud Rahmat Yonathan Aditya Santoso Yunizar Yunizar