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All Journal IPTEK The Journal of Engineering Pendas : Jurnah Ilmiah Pendidikan Dasar Journal of Applied Sciences, Management and Engineering Technology (JASMET)
Indra Komara
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Performance based design of Hospital Building in Surabaya under variety design alternative using SNI 1726-2019 – Case study: Redesign Building Sigit Darmawan; Raden Buyung Darmawan; Ridho Bayuaji; Yuyun Tajunnisa; Indra Komara; Sita Auliyah Rahmasari
IPTEK The Journal of Engineering Vol 9, No 2 (2023)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v9i2.a16231

Abstract

Nowadays, At the present time, the occurrence of regular earthquakes all over the world is turning into a significant problem. The structures that make up hospitals are among the most significant buildings in a living society because, in the event that a potentially dangerous scenario emerges, they help to serve as a caring and healing unit for the human population. A hospital building is made up of three different components: the structural component, the non-structural component, and the functional component. Each of these components can have an effect, either directly or indirectly, on the management and operation of the hospital building. Each time a natural or non-natural cause causes devastation and disaster, the globe suffers. In such cases, hospital buildings are vital in term of treating victims and injured persons, and housing those who lost their homes. Therefore, hospital facilities should be planned and constructed with enough stiffness and strength to resist disasters and serve as shelters or housing units afterward. This study analyses a hospital in area of Surabaya which built using Indonesian standard provision SNI 1726-2012. Weak structural members of the hospital are identified. The analysis determined to study the behaviour of hospital building when subjected to seismic forces using ETABS using current provision SNI 1726-2019. The investigation determined that the effect of the lateral forces under P-delta effect on the hospital building. Two different conditions have been compared, e.g., existing model and alternative configuration using dual system method to determining the recommendation for current building to resist seismic forces under new regulation. As a result, existing structure of hospital building still meet the requirements, but to fill the condition in accordance with SNI 1726-2019, some modifications need to be improved.
Performance of High-Damping Rubber Bearings for Seismic Isolation – Case Study of Nayumi Sam Tower Malang Apartment Ibnu Pudji Raharjo; Yuyun Tajunnisa; Indra Komara; Geralda Nurry Arifa; Sungkono Sungkono; Dicky Imam Wahyudi
IPTEK The Journal of Engineering Vol 9, No 3 (2023)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v9i3.a16233

Abstract

The base-isolation system is a highly effective earthquake-resistance technique. Especially when the building is under soft soil, however, it is detrimental to the horizontal displacement control of the isolation layer and less effective in decreasing the seismic response of the superstructure. Rubber bearings with high damping can produce substantial hysteretic damping and exhibit a hardening effect at high-shear strains. The research investigates the Nayumi Sam Tower Malang apartment as a case study with 10 stories of reinforced concrete with a double system structure which is in a soft soil location. High-damping rubber bearings (HDRBs) is used as a parameter study to understand the alteration and give a recommendation. The seismic response of the building is evaluated, and the HRDB alternative systems is confirmed using ETABS. It is pointed out that the HRDBs system can reduce the impact of earthquakes by close to 25% with the smallest section of structural dimension. According to new regulation building in Indonesia, the precise values of test circumstances, such as compressive force, shear displacement, and frequency, are developed. The findings are thoroughly discussed, the applicability of HRDBs for seismic isolation of residential buildings is concluded. Building with HRDBs isolation implied to have lower base shear and inter-storey drift which improved the performance of the structure with less damage.  
PENGEMBANGAN DAN IMPLEMENTASI MEDIA POP UP BOOK BERBASIS POWERPOINT BERMUATAN SEX EDUCATION DALAM PEMBELAJARAN BAHASA INGGRIS DI SD Riesma Aulia Salsabila; Aulia Zahra Ihsani; Rif’an Fazrin Zulfikar; Rafi Nurfadly; Indra Komara; Winti Ananthia
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 9 No. 3 (2024): Volume 09 No. 03 September 2024
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v9i3.17849

Abstract

Cases of child sexual abuse often occur in Indonesia, so it’s important to educate children from an early age so that they can understand the forms of sexual acts and how to prevent them. In addition, the English language skills of elementary school students are also a concern because students still experience delays in understanding the material and vocabulary. This problem can be solved by integrating sex education and English learning through PowerPoint-based pop up book media in English with sex education content, named WiseBook: Wisdom in Sexual Education E-Book. This research aims to obtain an overview of the process, feasibility test data and application test data on WiseBook media development. The research method employed is D&D with the results of the applied research based on the results of the material expert test which obtained a score of 65 out of 75 resulting in a percentage of 86% in the “very good” category and the media expert test obtained a score of 56 out of 75 resulting in a percentage of 74.6% in the “good” category. Based on the results of implementation and interviews with teachers, it shows that the use of WiseBook media can be applied to low-grade elementary school students because students become active and interactive during learning. The application of this learning media can make it easier for students to remember and understand the material presented, especially in learning English which is often considered difficult. Kasus kekerasan seksual pada anak sering terjadi di Indonesia, sehingga penting untuk memberikan edukasi pada anak sejak usia dini agar mereka dapat memahami bentuk tindakan seksual dan cara mencegahnya. Selain itu, kemampuan berbahasa Inggris siswa sekolah dasar juga menjadi perhatian karena siswa masih mengalami keterlambatan dalam memahami materi dan kosakata. Permasalahan ini dapat diatasi dengan mengintegrasikan sex education dan pembelajaran Bahasa Inggris melalui media pop up book berbasis PowerPoint berbahasa Inggris bermuatan sex education, yang diberi nama WiseBook: Wisdom in Sexual Education E-Book. Riset ini bertujuan untuk memperoleh gambaran proses, data hasil uji kelayakan dan data hasil uji penerapan pada pengembangan media WiseBook. Metode riset yang digunakan yaitu D&D dengan hasil riset yang diterapkan berdasarkan hasil uji ahli materi yang memperoleh skor 65 dari 75 menghasilkan persentase 86% dengan kategori “sangat baik” dan uji ahli media memperoleh skor 56 dari 75 menghasilkan persentase 74,6% dengan kategori “baik”. Berdasarkan hasil implementasi dan wawancara pada guru, menunjukkan bahwa penggunaan media WiseBook dapat diterapkan kepada siswa sekolah dasar kelas rendah karena siswa menjadi aktif dan interaktif selama pembelajaran berlangsung. Dengan diterapkannya media pembelajaran ini dapat mempermudah siswa untuk mengingat dan memahami materi yang disampaikan, terutama dalam pembelajaran Bahasa Inggris yang seringkali dianggap sulit.
Numerical Investigation Of Reinforcement Ratio Effects on the Flexural Performance of High-Calcium Fly Ash Geopolymer Concrete Beams Muhammad Rifky Trisnawardhana; Bambang Piscesa; Indra Komara
Journal of Applied Sciences, Management and Engineering Technology Vol 7, No 1 (2026)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2026.v7i1.8516

Abstract

This study investigates the influence of the longitudinal reinforcement ratio on the flexural behavior of high-calcium fly ash geopolymer concrete (GPC) beams using three-dimensional nonlinear finite element analysis (3D NLFEA). Beams with identical geometry and shear reinforcement were modeled, with reinforcement ratios varied from under-reinforced to over-reinforced conditions. Material properties were based on validated experimental data. Results show that increasing reinforcement enhances flexural strength but significantly reduces ductility and energy absorption. Under-reinforced beams exhibited ductile, tension-controlled failure governed by steel yielding, while over-reinforced beams failed abruptly due to concrete crushing. The transition from ductile to brittle behavior occurs at significantly lower reinforcement ratios in GPC (around ρ = 0.0157) compared to ordinary Portland cement concrete. Based on ductility ratio, energy absorption, and toughness index i10, a maximum reinforcement ratio of ρ ≤ 0.010 is recommended for ductile design of high-calcium fly ash GPC beams.
Co-Authors Aulia Zahra Ihsani Bambang Piscesa Dicky Imam Wahyudi Geralda Nurry Arifa Ibnu Pudji Raharjo Muhammad Rifky Trisnawardhana Raden Buyung Darmawan Rafi Nurfadly Ridho Bayuaji Riesma Aulia Salsabila Rif’an Fazrin Zulfikar Sigit Darmawan Sita Auliyah Rahmasari Sungkono Sungkono Winti Ananthia Yuyun Tajunnisa