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All Journal Jurnal Konstruksia Journal of Advanced Civil and Environmental Engineering AGREGAT Rancang Bangun BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Jurnal Pengabdian kepada Masyarakat Nusantara Publikasi Riset Orientasi Teknik Sipil (Proteksi) Abdimas: Papua Journal Of Community Service Teknika Jurnal Pengabdian Mandiri Prosiding Seminar Nasional Teknik Sipil UMS Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS ETERNITAS Journal of Civil Engineering and Vocational Education Jurnal Penelitian Teknik Sipil Konsolidasi Jurnal Ilmiah Teknik Sipil (JIMATS)
Herlina Arifin
Universitas Muhammadiyah Sorong
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences Transportation Other

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Analisis Performa Dinamik Struktur Portal Rangka Baja Terhadap Gempa Menggunakan Metode Response Spectrum Dan Time History Nur Hadi Laisi Pasau; Herlina Arifin; Wilis Sutiono; Purwantoro, Didik Setyo; Asriadi
Jurnal Ilmiah Teknik Sipil (JIMATS) Vol. 5 No. 01 (2026): Jurnal Ilmiah Teknik Sipil (JIMATS)
Publisher : Universitas Muhammadiyah Sorong

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Abstract

Kota Sorong memiliki risiko gempa tinggi karena berada di jalur tektonik aktif, namun penerapan struktur rangka baja masih rendah. Mengingat kekuatan dan fleksibilitasnya, struktur baja berpotensi menjadi solusi bangunan tahan gempa, khususnya untuk fasilitas vital seperti rumah sakit. Penelitian ini bertujuan membandingkan kinerja struktur portal rangka baja lima lantai terhadap beban gempa menggunakan tiga skenario analisis: (1) gabungan Response Spectrum dan Time History dengan spectrum matching, (2) Response Spectrum, dan (3) Time History. Pemodelan dilakukan di Software ETABS dengan beban gempa dari data lokal dan gempa Chi-Chi Taiwan yang telah disesuaikan. Hasil menunjukkan metode gabungan menghasilkan base shear lebih rendah dibandingkan metode terpisah, semua metode memenuhi partisipasi massa ≥90%, dan story drift terbesar terjadi pada Time History arah X (264,82 mm), melebihi batas izin 40 mm. Bracing menjadi elemen paling kritis dengan stress ratio >6 (Response Spectrum) dan >11 (Time History), sedangkan kolom dan balok umumnya aman. Temuan ini menegaskan pentingnya pemilihan metode analisis gempa yang tepat untuk efisiensi dan keamanan bangunan vital di wilayah rawan gempa.
Utilization of Local Sago Fiber as a Sustainable Additive in Cement Mortar Maysyurah, Alfina; Purwantoro, Didik S; Arifin, Herlina; Fajar, Muhammad Nur; Aris, Muhammad
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 1 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Januari 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i1.8364

Abstract

This study aims to evaluate the effect of adding sago fiber as an environmentally friendly additive on the physical properties of mortar, namely density, porosity, water absorption, and compressive strength. The study was conducted experimentally in the laboratory with variations of normal mortar and the addition of sago fiber of 2%, 4%, and 10%. Cubic test specimens measuring 5 × 5 × 5 cm were tested at the age of 28 days for density, porosity, water absorption, humidity and temperature, and compressive strength. The test results showed that the addition of sago fiber caused a decrease in the value of the density and compressive strength of the mortar, while the porosity and water absorption values increased. The highest density value was obtained in normal mortar at 2.09 gr/cm³ and a compressive strength of 21.33 MPa. Meanwhile, with a variation of 10% sago fiber, the density decreased to 1.53 gr/cm³ and the compressive strength only reached 3.22 MPa. Environmental conditions such as temperature and humidity also affect the compressive strength of mortar. This study concluded that sago fiber can be used as an environmentally friendly additive in mortar, but its use should be limited to maintain the material's structural performance.
Co-Authors Abu, Nur Achmad Rusdi Ahmad Januar Jafarudin Alfina Maysyurah Aris, Muhammad Asriadi Asrul Saputra Awal, Muhammad Awal Al Ghazali Chandra Margareta Claudia, Desty Desembardi, Faried Didik Setyo Purwantoro Didik Setyo Purwantoro Fajri Fajri Gibran, Muhammad Yusuf Hermawan Suprianto Iqbal Iqbal Iqbal Iqbal Ja'far, Achmad La Ibal M Yunus Nasrullah Mernawati Marina Abriani Butudoka Maysyurah , Alfina Mierta Dwangga Mizwan Purnama Mohammad Aris Mohammad Aris Muhammad Awal Al Ghazali Muhammad Nur Fajar Muhammad Rusmin Muhammad Rusmin, Muhammad murni murni Nur Hadi Laisi Pasau Nurul Hidayah Karrang Nurwijayanti Pristianto, Hendrik Purwantoro, Didik S Puspa Rini, Retno Rahayu, Andi Rahmi Rahmi Retno Puspa Rini Rian Histiariani, Aprisa Riskawati Rusdi, Achmad Rusmin Rahman Salmawati Salmawati, Salmawati Sari Alfiani Anugrah Setya, Didik Siti Julaeka Slamet Widodo Slamet Widodo SULFIANA, SULFIANA Sutiono, Wilis Syafilla Aning Saba Wilis Sutiono