Article Per Year (5 Year)
p-Index From 2020 - 2025
6.837
P-Index
This Author published in this journals
All Journal BAREKENG: Jurnal Ilmu Matematika dan Terapan Rang Teknik Journal Jurnal Aplikasi Teknik Sipil JISTech (Journal of Islamic Science and Technology) International Journal of Engineering, Technology and Natural Sciences (IJETS) Construction and Material Journal APPLIED RESEARCH ON CIVIL ENGINEERING AND ENVIRONMENT (ARCEE) Majalah Ilmiah UPI YPTK Jurnal ABDI PAUD Civil Engineering Collaboration Jurnal Abdimas ADPI Sains dan Teknologi Jurnal Rivet: Riset dan Invensi Teknologi Jurnal Komtekinfo Jurnal Teknologi Jurnal Bangunan: Konstruksi & Desain Konsienti: Community Services Journal ANDIL Mulawarman Journal of Community Engagement Jurnal Teknik dan teknologi tepat guna
Imani, Rafki
Universitas Putra Indonesia “YPTK” Padang
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

Published : 47 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 47 Documents
Search

 1   2   3   4   5 
Concrete Compressive Strength of Post Combustion With and Without Watering Rafki Imani; Rita Nasmirayanti; Julio Rendi Akbar
Applied Research on Civil Engineering and Environment (ARCEE) Vol. 4 No. 01 (2023)
Publisher : POLITEKNIK NEGERI JAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/arcee.v4i01.4803

Abstract

The strength of the building structure after a fire is determined by the length of time the fire takes place and the cooling process used. According to several previous studies, it is said that the longer the concrete burns, the lower the quality of the concrete will be. This study aims to observe the compressive strength of concrete after the combustion process by cooling through experimental trials on 21 samples of cube model concrete. The concrete sample consisted of three samples of normal concrete and 18 samples of concrete that would be given combustion treatment and the quality of the design concrete was K250. Three samples of normal concrete were tested at the age of 14 days, then 18 samples were prepared for the combustion process with normal fire. A total of nine samples of concrete were treated with combustion for one hour, two hours and three hours with normal cooling in the open air as many as three samples each. Meanwhile, nine other concrete samples that had undergone combustion were given cooling treatment by sprinkling with water. The average compressive strength of concrete with a duration of one hour, two hours and three hours without water cooling respectively is 320.05 kg/cm2, 285.65 kg/cm2 and 235.21 kg/cm2, with the percentage of decrease in the quality of concrete to normal concrete respectively is 9%, 19%, and 33%. Meanwhile, the average compressive strength of concrete with water cooling for the same duration of combustion is 295.72 kg/cm2, 245.34 kg/cm2 and 210.17 kg/cm2, with the percentage of decrease in the quality of concrete to normal concrete respectively is 16%, 30%, and 40%. Based on the results of this study, the duration of combustion and the cooling treatment used can reduce the quality of concrete compared to normal concrete.
Analisis Kapasitas Seismik Struktur Gedung Kantor Dinas KetahananPangan Provinsi Sumatra Barat Thasbih Al Fajri; Rafki Imani; Zakpar Siregar
Jurnal Teknologi Vol. 10 No. 2 (2020): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (527.07 KB) | DOI: 10.35134/jitekin.v10i2.19

Abstract

The office building of the food security office of West Sumatra Province is a multi-storey building with reinforced concrete structures built in earthquake-prone areas that have the potential for large-scale earthquakes such as the one that occurred in 2009. Based on USGS data, from December 2004 to October 2009 There have been 10 earthquakes measuring more than 5 on the Richter scale that rocked Indonesia and resulted in damage to buildings, both minor damage to heavy damage and evencollapsing. The big earthquake that occurred on September 30, 2009 in Padang City, West Sumatra, was measuring 7.6 on the Richter scale. In this study, evaluated the seismic capacity of a reinforced concrete building 4 (four) floors built in earthquake-prone areas in the city of Padang. The seismic capacity of the building is evaluated based on the standard published by Japan, namely The Standard for Seismic Evaluation of Existin Reinforced Concrete Building, 2001. In this evaluation, it only looks at the structural elements of the column on the first floor. Seismic capacity is expressed in terms of the lateral strength index and the ductility index of the building. The results of the evaluation of seismic capacity obtained the total strength index value of the building is 0.707. The seismic capacity of this building can be shown to be adequate or strongin earthquake-prone areas compared to the seismic capacity of reinforced concrete buildings that survived the massive earthquake of 7.6 on the Richter Scale in West Sumatra in September 2009. From the evaluation results on this building which is located in an area including the prone to strong earthquakes can be stated to be able to behave ductile and able to withstand an earthquake or not experience sudden collapse
RESPON STRUKTUR TERHADAP BEBAN DINAMIK GEMPA PADA RUSUN MAHASISWA INSTITUT TEKNOLOGI PADANG DENGAN SHEARWALL Ibnu Hanif Sudarmaka; Rafki Imani; Rita Nasmirayanti; Kharisma Permata Sari
JURNAL RIVET Vol 3 No 01 (2023): Juni 2023
Publisher : Program Studi Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/rivet.v3i01.1023

Abstract

Rusun Mahasiswa ITP Padang was originally designed without using a shearwall, but in practice, it was changed to using a shearwall with L-frame type. This study aims to analyze the effect of using shearwall on the columns and beams of Rusun Mahasiswa ITP Padang. The results showed that the use of shearwall with L-frame type on columns caused a 3% decrease in the axial force on the column, up to 90% in cross-sectional force, and up to 84% in moment load reduction. Meanwhile, the beam elements can reduce the shear force by up to 24%, and the moment load can be reduced by up to 35%. The deviation between floors in Rususn Mahasiswa ITP Padang has met the required limit, where the deviation values for the x direction (Δx) and y direction (Δy) are smaller than the permit deviation (Va).
Analisis Perbandingan Perilaku Struktur Dengan Variasi Bentuk Penampang Kolom Beton Bertulang fachri; Deded Eka Sahputra; Asri Yuda Trinanda; Rafki Imani
Civil Engineering Collaboration Vol. 8 (2023) No. 2
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jcivil.v8i2.61

Abstract

Penampang kolom adalah salah satu elemen penting dalam desain struktur beton bertulang. Berbagai bentuk penampang dapat digunakan, seperti persegi, persegi panjang, lingkaran, atau bentuk khusus lainnya. Setiap bentuk penampang memiliki karakteristik yang berbeda dalam hal kekuatan, kekakuan, dan perilaku ketika terkena beban. dilakukan analisis komparatif terhadap beberapa variasi bentuk penampang kolom beton bertulang. Metode analisis dinamik dan Perangkat lunak analisis struktur digunakan untuk mensimulasikan perilaku struktur dengan berbagai bentuk penampang. Parameter seperti beban maksimum yang dapat ditahan, deformasi struktural, dan gaya dalam kolom dievaluasi dan dibandingkan. Hasil penelitian didapatkan nilai simpangan arah X paling kecil dengan rasio 9,08% dari  kolom persegi dan 0,84% terhadap kolom lingkaran Simpangan arah-Y nilai paling kecil terjadi pada struktur dengan kolom lingkaran dengan rasio 15,15% terhadap kolom persegi panjang dan 7,40% terhadap kolom persegi. Nilai gaya geser arah X pada kolom persegi memiliki rasio 5,07% terhadap kolom lingkaran dan 6,2% terhadap kolom persegi panjang. Nilai gaya geser arah Y pada kolom persegi panjang memiliki rasio 15,5% terhadap kolom lingkaran dan 6,8% terhadap kolom persegi. Gaya momen arah Y pada kolom persegi panjang memiliki rasio 12,76% terhadap kolom lingkaran dan 7,66% terhadap kolom persegi, pada gaya momen arah X kolom persegi memiliki rasio 6,52% terhadap kolom lingkaran dan 7,5% terhadap kolom persegi panjang
Pelatihan Robotika dengan Memanfaatkan Teknologi Arduino Smart Robot Fatchurrohman, Nanang; Imani, Rafki; Yenni, Zefri; Yuwanda, Tonny
Konsienti : Community Services Journal Vol. 2 No. 02 (2024): July
Publisher : PT. TAKAZA INNOVATIX LABS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61536/konsienti.v2i02.61

Abstract

Kegiatan Pengabdian Kepada Masyarakat telah dilakukan oleh tim UPI-YPTK di Sekolah Menengah Kebangsaan Gudang Rasau (SMK SEGRA) di Pahang, Malaysia. Dalam kegiatan ini UPI YPTK juga berkolaborasi dengan Universitas Malaysia Pahang As Sultan Abdullah (UMPSA). Di sekolah SMK SEGRA, tim UPI-YPTK mengadakan pelatihan praktis yang bertujuan untuk meningkatkan keterampilan teknis dan pengetahuan ilmiah dalam bidang robotika. Pelatihan ini memanfaatkan teknologi Arduino Smart, yang dikenal memiliki aplikasi luas dalam pengembangan robotika. Dalam pelaksanaannya, kegiatan ini tidak hanya berfokus pada pengembangan keahlian teknis siswa, tetapi juga bertujuan untuk menginspirasi inovasi dan kreativitas. Siswa-siswa didorong untuk berpikir out-of-the-box dan mengembangkan aktivitas dari aspek teknis. Kerjasama antara UPI-YPTK, UMPSA dan SMK SEGRA ini tidak hanya menguntungkan dalam konteks pengabdian, tetapi juga memperkuat hubungan bilateral antara institusi pendidikan di Indonesia dan Malaysia. Ini membuka peluang untuk kolaborasi lebih lanjut di masa depan, baik dalam bentuk pertukaran pelajar, penelitian bersama, maupun proyek-proyek pengabdian lainnya. Dengan demikian, kegiatan pengabdian ini tidak hanya berperan dalam meningkatkan kualitas pendidikan dan pengetahuan teknis siswa, Pemanfaatan teknologi seperti Arduino Smart diharapkan dapat mendorong perkembangan inovasi.
Experimental Study Compressive Strength of Concrete With Palm Shells as a Partial Replacement for Coarse Aggregate Deded Eka Sahputra; Rita Nasmirayanti; Rafki Imani; Nanang Fatchurrohman; Noto Dewantoro
Jurnal Internasional Teknik, Teknologi dan Ilmu Pengetahuan Alam Vol 5 No 2 (2023): International Journal of Engineering, Technology and Natural Sciences
Publisher : Universitas Teknologi Yogyakarta, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46923/ijets.v5i2.280

Abstract

This experimental study aims to evaluate the compressive strength of concrete using palm kernel shells as a substitution for coarse aggregates. The utilization of locally available materials in abundance, such as palm kernel shells, can serve as a sustainable alternative in construction. This research is conducted to measure the influence of palm kernel shell usage on the mechanical properties of concrete, particularly its compressive strength. The research methodology involves the preparation of concrete mixtures with various levels of substitution of coarse aggregates with palm kernel shells. Test specimens were prepared with substitution percentages of 0%, 25%, and 60% with planned ages of 7 days, 21 days, and 28 days. Three cube specimens were cast for each planned age. The test results were used to compare the compressive strength of concrete with and without palm kernel shells and to evaluate the potential of palm kernel shells as a substitute for coarse aggregates in structural concrete applications. The research findings indicate that the highest compressive strength was obtained in the concrete without any palm kernel shell mixture (0%), measuring 379.86 kg/cm2. The highest compressive strength with the substitution of coarse aggregates using palm kernel shells was found in the 25% mixture, with a value of 362.57 kg/cm2, while the lowest percentage was recorded in the 60% mixture, with a value of 270.65 kg/cm2. Palm kernel shells have the potential to be used as a substitute for coarse aggregates in concrete. However, their utilization needs to be carefully analyzed and tailored to the specific conditions and requirements of construction projects. This research provides initial insights into the use of palm kernel shells in concrete and can serve as a foundation for further research in the development of environmentally friendly concrete using sustainable local raw materials
Perawatan Mesin Sterilizer Menggunakan Metode Age Replacement Muhammad, Al; Fitri, Meldia; Farid, Mohammad; Imani, Rafki; Nofriadirman
Jurnal Teknik dan Teknologi Tepat Guna Vol. 2 No. 2 (2023): Jurnal Teknik dan Teknologi Tepat Guna
Publisher : Riset Sinergi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62357/j-t3g.v2i3.198

Abstract

Penelitian dilator belakangi oleh kerusakan yang terjadi pada mesin sterilizer yaitu pecahnya tabung doorpacking, pipa condesate bocor, pintu rebusan bocor, tidak bergeraknya exhaust valve, terjadinya korosi pada bleed, dan klep pengaman tidak terbuka. Tujuan penelitian yaitu Menentukan interval waktu perawatan yang optimal untuk melakukan penggantian komponen mesin Sterilizer dengan metode Age Replacement. Dan mengetahui biaya penggantian komponen mesin Sterilizer yang diusulkan dengan metode Age Replacement. Jenis penelitian dalam penelitian ini yaitu kuantitatif. Data yang digunakan berupa data sekunder, yang terdiri dari data interval waktu kerusakan komponen dan biaya-biaya yang dikeluarkan untuk penggantian komponen. Hasil penelitian menunjukkan interval waktu perawatan yang optimal untuk melakukan penggantian komponen doorpacking yaitu pada hari ke 31 dengan biaya penggantian sebesar Rp 815.572,6 untuk sekali penggantian. Sedangkan interval waktu perawatan yang optimal untuk melakukan penggantian komponen bearing yaitu pada hari ke 35 dengan biaya penggantian sebesar Rp 380.346 untuk sekali penggantian. Biaya penggantian komponen doorpacking yang diusulkan sebesar Rp 15.000.000 untuk 3 kali penggantian dan menghemat Rp 4.770.558 dari biaya penggantian real yang dikeluarkan perusahaan. Sedangkan biaya penggantian komponen bearing yang diusulkan sebesar Rp 18.000.000 untuk 6 kali penggantian, dan menghemat sebesar Rp 5.041.116 dari biaya penggantian real yang dikeluarkan perusahaan.
Comparative Study of Soil Stabilization Using Ceramic Waste Powder and Glass Waster Powder as Additive Nanda, Nanda; Imani, Rafki; Mursyid, Muhammad; Pratama, Ade
Jurnal Aplikasi Teknik Sipil Vol 22, No 4 (2024)
Publisher : Departemen Teknik Infrastruktur Sipil Institut Teknologi Sepuluh Nopember Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j2579-891X.v22i4.20448

Abstract

Clay soil is aproblematic soil that high swelling-shrinking properties, expands when given water, and shrinks when dry. One method to improve the clay soil that can be used is soil stabilization using additives or added materials. In this research, the additional materials used are ceramic waste powder (CWP) and glass waste powder (GWP) which will be mixed into clay soil at the location of Koto Baru Nan XX, Padang. The quantities used for each added ingredient are 10%, 15%, 20%, and 25%. The method used is an observation method which aims to analyze the physical and mechanical parameters of the soil before and after adding additional materials. The results of the test show that the plasticity index value using CWP and GWP additives decreased by 85% and 59%, respectively. The increase in UCS value when adding CWP and GWP is almost the same when adding 20%. The OMC value decreased by an average of 40% each with the addition of CWP and GWP. Meanwhile, the increase in MDD value in GWP is greater than the addition of CWP.
Evaluasi Struktur Gedung Dinas Perpustakaan dan Kearsipan Kabupaten Kuantan Singingi dengan Metode Analisis Pushover Rama Dandi; Nanda; Mayozzi Chairi; Rafki Imani
Civil Engineering Collaboration Vol. 10 (2025) No. 1
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jcivil.v10i1.77

Abstract

Gempa bumi menyebabkan kerusakan bangunan dan korban jiwa. Kota Ternate tercatat telah terjadi gempa bumi yang belum lama terjadi, yaitu pada 15 November 2014 berkekuatan 7,3 skala richter (SR), pada 25 Januari 2015 berkekuatan 5,4 SR, pada 8 Juni 2016 berkekuatan 6,6 SR dan masih banyak lagi gempa-gempa yang telah terjadi. Tujuan penelitian ini adalah untuk mengetahui prosedur analisis pushover untuk mengevaluasi kinerja struktur gedung dan untuk mengetahui pola keruntuhan struktur gedung setelah dianalisis dengan pushover.Penelitian ini menggunakan metode Static Pushover Analysis dengan mengacu pada metode koefisien perpindahan (ATC-40). Beban lateral yang digunakan merupakan hasil dari analisis statik ekuivalen yang dikerjakan bertahap secara monotonik dalam 1 arah.Penelitian menunjukan bahwa ada beberapa kesimpulan. Pertama, perpindahan hasil pushover maksimum (????max) arah X adalah Sa=0,018 dan Sd=0,402 sedangkan untuk nilai dari Push Y adalah Sa=0,014 dan Sd=0,403 sedangkan hasil analisis Push X nilai ????max total drift 0,00097 dan nilai ????max inealastic drift 0,018890, sedangkan Push Y, nilai ????max total drift 0,000871 dan nilai maksimun inealastic drift 0,016990. Berdasarkan ATC-40 hasil dari perhitungan tersebut masuk kedalam kelas Immediate Ocupancy (IO) yang artinya apabila terjadi gempa, hanya sedikit kerusakan structural yang terjadi. Karakteristik dan kapasitas system penahan gaya vertikal dan lateral pada struktur masih sama dengan kondisi dimana gempa belum terjadi, sehingga bangunan aman dan dapat langsung dipakai.
PENGUATAN KAPASITAS DAN MITIGASI KEGEMPAAN MELALUI EDUKASI KOMIK BAGI ANAK USIA 6-9 DI KOTA PADANG Em Afdhal, Vernanda; Imani, Rafki; Prawiro, Radius
Jurnal ABDI PAUD Vol. 6 No. 1 (2025): JUNI
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/abdipaud.v6i1.43296

Abstract

Indonesia merupakan negara dengan tingkat kerawanan gempa yang tinggi, termasuk Kota Padang. Anak-anak usia 6-9 tahun atau rentang Pedidikan Anak Usia Dini (PAUD) hingga sekolah dasar (SD) merupakan kelompok rentan terhadap bencana, sehingga pendidikan mitigasi sangat penting bagi mereka. Namun, metode konvensional seperti buku teks kurang efektif menarik minat anak-anak. Kegiatan Pengabdian kepada Masyarakat (PKM) ini bertujuan mengimplementasikan media komik sebagai sarana edukasi mitigasi bencana gempa bagi siswa SDN 06 Kampung Lapai Kota Padang. Komik dipilih karena lebih menarik dan mudah dipahami oleh anak-anak melalui pendekatan visual dan naratif. Hasil kegiatan menunjukkan bahwa siswa lebih tertarik belajar mitigasi gempa melalui komik dibandingkan teks konvensional. Pemahaman siswa meningkat, suasana belajar lebih menyenangkan, dan keterlibatan siswa lebih aktif. Dengan demikian, media komik terbukti efektif sebagai alternatif edukasi mitigasi bencana gempa bagi anak usia 6-9 tahun, di wilayah rawan bencana, serta dapat mendukung pengembangan literasi kebencanaan sejak dini secara kreatif dan komunikatif.
Co-Authors Ade Pratama Adelino, Muhammad Ilham Afif Okriwa Afrilda Sari Afrilda Sari Afrilda Sari Alfa, Akbar Anggara Yunanda Ariani Wulan Putri Arman, Utami Dewi Asri Yuda Trinanda Boy, Wendy Briant Mcchristyadillan Chairi, Maiyozzi Deded Eka Sahputra Deded Eka Sahputra fachri Fakhru Rozi Fakhru Rozi Fakhru Rozi Fatchurrohman, Nanang Fauzi Deca Putra Fitri, Meldia Gusrinaldi, Ilham Hasbi Rianda Hengki Kurniawan Heri Yanto Ibnu Hanif Sudarmaka Ifay Ariola Ikmal Baidlo Ilfa, Ida Ilham Novian Jaya, Romi Jihan Melasari Julio Rendi Akbar Juni Saputra Kharisma Permata Sari Kharisma Permata Sari Laurency, Sonya Ostha Maiyozzi Chairi Maiyozzi Chairi Mayesi Mayozzi Chairi Mediana Desfita Mohammad Farid Muhammad, Al Mursyid, Muhammad Nadra Arsyad Nainggolan, Rainaldi S Nanang Fatchurrohman Nanda Nanda Nanda Nanda, Nanda Nasmirayanti, Rita Nofriadirman Noto Dewantoro Nugrafindo Yanto Oktavani, Devita Lira Prawiro, Radius Purba, Widiawati Rainaldi S Nainggolan Rama Dandi Rita Nasmirayanti Rita Nasmirayanti Romi Eka Putra Romi Jaya Rozi, Fakhru Sahputra, Deded Eka Sari, Afrilda Sofia Anita Sofia Anita Sofia Anita Sonya Ostha Laurency Sonya Ostha Laurency Suandi, Ramadhani Tedy Wiraseptya Thasbih Al Fajri Tonny Yuwanda Utami Dewi Arman Utami Dewi Arman Utami Dewi Arman Vernanda Em Afdhal Wendy Boy Widiawati Purba Widiawati Purba Yelviola Richi Sonia Yogi Andzel Pratama Yundari, Yundari Zakpar Siregar Zefri Yenni Zulva Andika