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All Journal Jurnal Konstruksia Journal of Advanced Civil and Environmental Engineering BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Jurnal Ilmiah Ecosystem Musamus Journal of Civil Engineering Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Publikasi Riset Orientasi Teknik Sipil (Proteksi) Abdimas: Papua Journal Of Community Service Teknika Prosiding Seminar Nasional Teknik Sipil UMS Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS ETERNITAS kawanad Jurnal Penelitian Teknik Sipil Konsolidasi Jurnal Ilmiah Teknik Sipil (JIMATS)
Alfina Maysyurah
Teknik Sipil, Universitas Muhammadiyah Sorong
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences Transportation Other

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Analisis Pengaruh Konfigurasi Soft Story Terhadap Kinerja Seismik Bangunan Di Kota Sorong Menggunakan Metode Pushover Nurul Hidayah Karrang; Herlina Arifin; Muhammad Nur Fajar; Alfina Maysyurah; Purwantoro, Didik Setyo
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 yang terletak pada zona seismik aktif mengalami perkembangan pesat dalam pembangunan infrastruktur, khususnya hotel dan pusat perbelanjaan. Namun, konfigurasi soft story yang sering dijumpai pada bangunan modern berpotensi menurunkan kinerja seismik dan meningkatkan risiko keruntuhan saat terjadi gempa. Penelitian ini bertujuan untuk menganalisis perilaku seismik struktur bangunan dengan konfigurasi soft story di Kota Sorong serta mengkaji pengaruh variasi ketinggian kolom pada lantai dasar terhadap kinerja struktur. Metode yang digunakan adalah analisis pushover, yaitu pendekatan statik nonlinier dengan pembebanan lateral bertahap untuk mengevaluasi respons inelastik struktur. Hasil analisis menunjukkan bahwa struktur tanpa soft story mampu mempertahankan perilaku daktail dengan distribusi sendi plastis yang merata pada displacement 0,34 m dan berada pada tingkat performa Immediate Occupancy hingga Life Safety. Sebaliknya, struktur dengan soft story mengalami konsentrasi plastisitas pada kolom lantai dasar yang cepat mencapai kondisi Collapse Prevention, sehingga deformasi tidak terdistribusi ke lantai atas. Variasi ketinggian kolom dari 5 m hingga 8 m memperlihatkan peningkatan signifikan pada drift ratio dan koreksi gaya geser dasar. Kondisi ini mengindikasikan bahwa semakin tinggi kolom pada lantai dasar, semakin besar kerentanan struktur terhadap beban gempa lateral.
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 Achmad Rusdi Anang Widianto Aris, Muhammad Asriadi Asrul Saputra Awal, Muhammad Awal Al Ghazali Azalia Fajri Yasin Chandra Margareta Claudia, Desty Desembarti, Faried Didik Setyo Purwantoro Didik Setyo Purwantoro Endang Abubakar Farida, Anif Gibran, Muhammad Yusuf Herlina Arifin Hermawan Suprianto Iqbal Iqbal La Ibal M Yunus Nasrullah Mernawati Marasabessy, Umar R. Mierta Dwangga Mizwan Purnama Mohammad Aris Mohammad Aris Muhammad Awal Al Ghazali Muhammad Nur Fajar Muhammad Rusmin, Muhammad Murni Nurbia Nurul Hidayah Karrang Pristianto, Hendrik Purwantoro, Didik S Puspa Rini, Retno Rahful A. Madaul Rahmatullah, Azwar Retno Puspa Rini Riskawati Rumakefing, Sadli Rusmin Rahman Setya, Didik Siti Julaeka Slamet Widodo Slamet Widodo Slamet Widodo Wilis Sutiono Yustus Fatemyo