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All Journal Media Teknik Sipil MEDIA KOMUNIKASI TEKNIK SIPIL Sinergi Rekayasa Sipil Semesta Teknika Teknisia Jurnal Teknik Sipil Bangunan Jurnal Rekayasa Sipil Journal of the Civil Engineering Forum JOURNAL OF CIVIL ENGINEERING, BUILDING AND TRANSPORTATION Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Aplikasi Teknik Sipil Publikasi Riset Orientasi Teknik Sipil (Proteksi) Journal of Civil Engineering and Planning (JCEP) Bulletin of Civil Engineering Andalasian International Journal of Applied Science, Engineering, and Technology Universitas Muhammadiyah Yogyakarta Undergraduate Conference Proceeding Prosiding Seminar Nasional Program Pengabdian Masyarakat Journal of the Civil Engineering Forum Jurnal Penelitian Transportasi Darat
Hakas Prayuda
Universitas Muhammadiyah Yogyakarta
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Transportation Other

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Effect of Staircase Incorporation on Seismic Performance of 6-Story RC Buildings: A Nonlinear Pushover Analysis Samsul Abdul Rahman Sidik Hasibuan; Hakas Prayuda; Masdiana; Baskoro Abdi Praja; Annisa Adika Qolby; Muhammad Rizal; Syarbaini Lubis
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol. 10 No. 1 (2026): JCEBT MARET
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v10i1.17723

Abstract

The seismic design of multi-story buildings requires accurate modeling and analysis to ensure structural safety during earthquakes. However, the staircase is often overlooked in traditional structural analyses. Therefore, this study aimed to examine the impact of the staircase on the seismic behavior of a six-story reinforced concrete building using nonlinear pushover analysis. The ETABS Nonlinear v.9.7.4 was used to model and analyze two variants, including one with a staircase and one without a staircase. Both models undergo nonlinear static pushover analysis with lateral loads of 1000 kN applied at each floor in the X and Y directions. Key seismic performance parameters were compared including natural periods, pushover curves, story displacements, drifts, drift ratios, and shears. The results showed that incorporating staircases significantly influences seismic response. The model with the staircase has a shorter natural period (0.71s vs. 0.82s for the first mode), showing increased stiffness. Subsequently, it also shows a higher base shear capacity (5200 kN vs. 4900 kN in the X-direction), suggesting enhanced lateral load resistance. The staircase model experiences reduced story displacements and lower drift ratios, with the maximum drift ratio decreasing from 1.03% to 0.86%. These results highlight the crucial role of staircases in improving seismic performance by increasing stiffness, enhancing lateral load capacity, and controlling displacement. In line with these findings, there is a need to incorporate the staircase in structural modeling to achieve more accurate seismic performance predictions, contributing to safer and more resilient building designs in earthquake-prone regions.
Studi Eksperimental Karakteristik Mekanik Mortar Serat dengan menggunakan High Volume Fly Ash, Superplasticizer, Serat PVA Martyana Dwi Cahyati; Hakas Prayuda; Fanny Monika
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol. 10 No. 1 (2026): JCEBT MARET
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v10i1.18053

Abstract

Material perbaikan struktur memerlukan performa mekanik dan durabilitas yang tinggi, namun penggunaan semen dalam jumlah besar pada mortar berkontribusi terhadap peningkatan emisi karbon dan pencemaran lingkungan. Penelitian ini bertujuan menganalisis karakteristik mekanik mortar berserat yang menggunakan High Volume Fly Ash (HVFA), superplasticizer, dan serat Polyvinyl Alcohol (PVA) sebagai material ramah lingkungan. Penelitian dilakukan dengan metode eksperimen melalui variasi kadar fly ash, rasio air terhadap binder, dosis superplasticizer, dan persentase serat PVA. Pengujian meliputi karakteristik mortar segar, kuat tekan, dan kuat tarik mortar. Hasil penelitian menunjukkan bahwa penggunaan fly ash dalam jumlah tinggi menyebabkan penurunan kuat tekan awal akibat reaksi pozzolanik yang lebih lambat dibandingkan semen Portland. Namun demikian, penggunaan fly ash sebesar dua kali berat semen masih mampu menghasilkan kuat tekan di atas 20 MPa. Rasio air terhadap binder optimum diperoleh pada nilai 0,23, sedangkan dosis superplasticizer optimum sebesar 2% dari berat binder. Penggunaan superplasticizer berlebih menyebabkan bleeding dan menurunkan kuat tekan mortar. Peningkatan kadar serat PVA mampu meningkatkan kuat tarik dan ketahanan retak melalui mekanisme crack bridging, meskipun kuat tekan cenderung menurun akibat berkurangnya workability dan meningkatnya porositas. Secara keseluruhan, kombinasi HVFA, superplasticizer, dan serat PVA berpotensi menghasilkan mortar berkelanjutan dengan performa mekanik yang memadai.
Probabilitas Tingkat Kerapuhan pada Bangunan Masjid Beton Bertulang Bertingkat Rendah Akibat Beban Seismik Hakas Prayuda; Taufiq Ilham Maulana; Desti Lailatul Mufida Fattiha; Muhammad Mundzirul Haq; Renita Husna
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.v31i2.66061

Abstract

Building collapse is one of the leading causes of casualties during an earthquake. It is necessary to assess the resistance of the building in seismic performance in order to reduce and prevent earthquake-related damage and building collapse. With this evaluation, it is possible to predict the probability of building damage in the event of an earthquake. This study evaluates the performance of mosque buildings using the fragility curve to determine the probability level of damage. As one of the nations with the largest number of mosques in the world, Indonesia faces the challenge of overcoming the possibility of earthquake damage to the mosque buildings. In addition, many mosque buildings were built based on mutual cooperation without using detailed technical calculations. Therefore, an evaluation of the mosque structure is essential. This study employs a STERA 3D numerical simulation utilizing earthquake time history data. In this study variation, five types of earthquake time history data are utilized. Additionally, the irregular shape of the building is one of the factors under investigation. By performing a pushover analysis, the output of the capacity curve for calculations using the HAZUS method is obtained, allowing for the generation of a seismic fragility curve. The evaluation results show that different variations of time history data produce different levels of probability of damage.
Studi Numerik Pengaruh Sistem Lantai Kayu dan Kalsifloor pada Bangunan Struktur Baja Maysandri, Imellia; Prayuda, Hakas; Syamsi, Muhammad Ibnu
Bulletin of Civil Engineering Vol. 6 No. 2 (2026): Agustus (Progress)
Publisher : Civil Engineering Department, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/bce.v6i2.32784

Abstract

Perkembangan industri meningkatkan kebutuhan akan bangunan pergudangan dengan kinerja struktural yang andal. Bangunan gudang di kawasan Pasuruan Industrial Estate Rembang (PIER) menggunakan rangka baja Wide Flange (WF) dengan lantai mezzanine kayu eksisting yang rentan mengalami degradasi akibat sifat higroskopis material. Penelitian ini mengevaluasi dampak substitusi pelat lantai kayu dengan panel kalsium silikat (Kalsifloor) terhadap respons struktural global melalui simulasi numerik 3D menggunakan SAP2000. Parameter yang dievaluasi meliputi lendutan vertikal, rasio simpangan antar lantai (drift ratio), reaksi perletakan, dan rasio tegangan (stress ratio). Model komputasi divalidasi terhadap perhitungan analitis manual, dengan selisih 0%. Hasil analisis menunjukkan bahwa penggantian material Kalsifloor meningkatkan massa bangunan sehingga lendutan vertikal naik 5,23% dan reaksi aksial tumpuan naik 0,74%. Namun, karakteristik homogen-isotropik Kalsifloor mengoptimalkan aksi diafragma dengan mereduksi simpangan lateral pada arah X hingga 0,06%. Seluruh parameter keamanan dan batas layanan struktur pasca-modifikasi terbukti memenuhi kriteria SNI 1727:2020, SNI 1726:2019, dan SNI 1729:2020. Disimpulkan bahwa struktur gudang eksisting layak menerima beban lantai baru tanpa memerlukan perkuatan tambahan (retrofitting).
Co-Authors Acep Widiyanto Afriandini, Besty Aji, Kartika Restu Al Fajir M Sarita Andi Herius Anita Rahmawati Annisa Adika Qolby Aristyasari, Yunita Furi Arma Rizal Riyandar As'at Pujianto As’at Pujianto, As’at As’at Pujianto Bagus Soebandono Baskoro Abdi Praja Bella Lutfiani Al Zakina Berkat Cipta Zega Cahyati, Martyana Dwi Darda Bari Farizqi Desti Lailatul Mufida Fattiha Dodi Agusto Wijaya Eri Putra Siswantoro Erlinda, Risky Dwi Fadhila Firdausa Fadhila Firdausa Fadillawaty Prayuda Fadillawaty Saleh Fadillawaty Saleh Fadillawaty Saleh Fadillawaty Saleh Fadillawaty Saleh, Fadillawaty Faiik Ilmi Fauzan, Okta Marzantio Firdausa, Fadhila Fredy Kurniawan Hanif Nursyahid Hasibuan, Samsul A Rahman Sidik Hendy Wijaya Ibrahim Ibrahim Ikhsan, Muhammad Nur Indra Bagus Kurniawan Istiawan, Istiawan Istiawan, Istiawan Junaidi Abdurazak Lilis Tiyani M Fahrul Hidayat M. Yogi Riyantama Isjoni Martyana Dwi Cahyati Martyana Dwi Cahyati Masdiana Maysandri, Imellia Moh. Ervianto Moh. Ervianto, Moh. Monika, Fanny Muhammad Imaduddin Muhammad Mundzirul Haq Muhammad Rizal Muqorrobin, Kholil Nugraha, Yoga Paudel, Satish Pratiwi, Sustika Prayuda, Fadillawaty Pujianto, As'at Pujianto, As'at Purwanto Purwanto Putra, Firhan Mahreza Yunanto Renita Husna Renita Husna restu faizah Saleh, Fadillawaty Salsabila, Bella Samsul A Rahman Sidik Hasibuan Samsul Abdul Rahman Sidik Hasibuan Saugani, Muh Sofyan Sinta Rizky Amalia Siti Solihah Soebandono, Bagus Sri Atmaja P. Rosyidi Sri Rezki Artini Suraya Hani Adnan Sustika Pratiwi Syamsi, Muhammad Ibnu Syarbaini Lubis Talitha Zhafira Taufiq I. Maulana Taufiq Ilham Maulana Taufiq Ilham Maulana Tengku Anita Raja Hussin Tika Ermita Wulandari Tiyani, Lilis Tri Ananda Putri Wilasamba, Ogata Yanuar Ade Putra Yoga Nugraha