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All Journal Jurnal Pengabdian Masyarakat (ABDIRA) Jurnal Teknik Sipil Institut Teknologi Padang
Astutik, Dwi Retno
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Aerospace Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Languange, Linguistic, Communication & Media Nursing Social Sciences Transportation Other

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Sosialisasi Megathrust dan Simulasi Bencana Alam Gempa Bumi di SMP Negeri 1 Buluspesantren Astutik, Dwi Retno; Iskahar, Iskahar; Susanti, Rini Puji
Jurnal Pengabdian Masyarakat (ABDIRA) Vol 5, No 4 (2025): Abdira, Oktober
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/abdira.v5i4.1006

Abstract

Kebumen Regency is one of the regencies in Central Java that borders the southern coast of Java and is traversed by the Indo-Australian megathrust plate boundary. Due to its high tectonic activity, it is highly susceptible to earthquakes. Socialization and simulation of disaster mitigation were conducted at SMP N 1 Buluspesantren, one of the coastal schools in Kebumen. The purpose of socialization and mitigation simulation is to provide education so that students are prepared to face natural disasters, especially earthquakes. The results of socialization and simulation for students of SMP N 1 Buluspesantren show that they have good knowledge of megathrust earthquakes, as indicated by the results obtained in the knowledge variable, which received a percentage of 81.4%, and in the disaster preparedness variable, students of SMP N 1 Buluspesantren showed good results with a score of 85.2%.
Analisis Struktur Beton Bertulang dengan Sistem Flat Slab Dilengkapi Drop Panel Pada Bangunan Bertingkat Astutik, Dwi Retno; Dadiono, Fajar
Jurnal Teknik Sipil Institut Teknologi Padang Vol 13 No 1 (2026): Jurnal Teknik Sipil Institut Teknologi Padang
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jts.2026.V1301.091-96

Abstract

Flat slab merupakan sistem struktur pelat beton tanpa balok, dengan penebalan di sekitar kolom (drop panel) yang berfungsi sebagai elemen pemikul beban. Penerapan sistem ini diharapkan dapat mengurangi volume beton, beban struktur, serta ketinggian antar lantai. Penelitian ini bertujuan untuk mengevaluasi apakah perancangan gedung dengan sistem flat slab dan drop panel memenuhi kriteria lendutan dan gaya geser berdasarkan SNI 1726:2019 dan SNI 2847:2019. Metode penelitian yang digunakan adalah metode kuantitatif dengan bantuan perangkat lunak ETABS Ultimate v25.1. Hasil desain awal menunjukkan ketebalan flat slab pelat lantai 1–2 sebesar 120 mm, pelat atap 100 mm, dan drop panel 110 mm. Partisipasi massa struktur mencapai 99,97%–100%, telah memenuhi persyaratan minimum 90% sesuai SNI 1726:2019. Gaya geser dinamik (VD) sebesar 1,807% lebih besar dari gaya geser statik (VS) sebesar 1,585%, sehingga memenuhi ketentuan kontrol. Hasil kontrol simpangan antar lantai (drift) masih berada dalam batas yang diizinkan. Nilai punching shear maksimum akibat beban gempa sebesar 0,972 dan akibat beban gravitasi sebesar 0,637, yang keduanya masih berada di bawah batas izin sebesar 1,0.
Co-Authors Dadiono, Fajar Iskahar, Iskahar Susanti, Rini Puji