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All Journal Jurnal Konstruksia Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Portal: Jurnal Teknik Sipil Journal La Multiapp Rengganis Jurnal Pengabdian Masyarakat
Ahmad Zarkasi
Program Studi Teknik Sipil, Fakultas Teknik, Universitas Muhammadiyah Mataram
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Mathematics Social Sciences Transportation

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Studi Perbandingan Kapasitas Portal Beton Dinding Pengisi Bata Ringan Pengujian Laboratorium dan SAP 2000 terhadap Gaya Lateral Ahmad Zarkasi; Hariyadi Hariyadi; Adryan Fitrayudha
Portal: Jurnal Teknik Sipil Vol 14, No 1 (2022): Edisi April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v14i1.2874

Abstract

Gempa merupakan fenomena alam akibat tektonik dan vulkanik. Risiko timbul antara lain kerusakan bangunan gedung, korban luka-luka, kematian dan kerusakan Infrastruktur lainnya. Beban gempa dalam Ilmu struktur disimulasikan menjadi Gaya Lateral dan Gaya Siklik sehingga mudah dalam permodelan. Pemilihan Bata Ringan sebagai dinding disinyalir dapat mengurangi berat sendiri (selfweight) struktur. System Application and Processing (SAP 2000) digunakan sebagai alat bantu menganalisis permodelan struktur bangunan terhadap beban-beban yang bekerja. Penelitian ini bertujuan untuk mengetahui perbandingan kapasitas tahanan beban dan simpangan hasil Laboratorium dengan aplikasi SAP 2000 terhadap Gaya Lateral. Pengujian dan Analisis Portal beton dengan dinding pengisi Bata Ringan berdimensi Lebar 1.00 m dan Tinggi 1.50 m dengan properti sebagai berikut pondasi 150/200 mm, kolom 150/150 mm, Balok 150/150 mm, tulangan pokok Ø10, tulangan sengkang Ø8 dan Dinding Bata Ringan AAC 60.20.10 cm. Pengujian portal beton pengisi bata ringan di laboratorium dan Analisis SAP 2000 menggunakan gaya lateral sebagai simulasi Gaya Gempa. Hasil pengujian laboratorium diperoleh kapasitas beban lateral dan simpangan sebesar 39.15 kN dan 45.88 mm dan hasil analisis SAP 2000 diperoleh kapasitas beban lateral dan simpangan sebesar 32.62 kN dan 33.73 mm. Rasio perbandingan Kapasitas pembebanan dan Simpangan Analisis SAP 2000 dan pengujian Laboratorium adalah sebesar  0,83 dan 0,74.
Penyuluhan dan Pelatihan Konstruksi Rumah Tahan Gempa kepada Tukang Bangunan di Desa Buwun Mas, Kecamatan Sekotong, Kabupaten Lombok Barat Adryan Fitrayudha; Heni Pujiastuti; Hafiz Hamdani; Nurul Hidayati; Ahmad Zarkasi; Aulia Muttaqin; Maya Saridewi Pascanawati; Isfanari Isfanari; Rajabi Mubarak; Intan Novianti; Feri Irawan; Chairil Anhar
Rengganis Jurnal Pengabdian Masyarakat Vol. 3 No. 1 (2023): Mei 2023
Publisher : Pendidikan Matematika, FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/rengganis.v3i1.280

Abstract

The threat of an earthquake can occur anytime and anywhere. In 2018 the island of Lombok was shaken by an earthquake with a magnitude of 7.0 on the Richter scale at a depth of 15 km. One of the areas that were quite badly affected by the quake was Sekotong District, Buwun Mas Village, and West Lombok Regency. Records of damage to the local village government show that 45% of residents' houses were heavily damaged, 30% were moderately damaged, and 2% were lightly damaged. This service aims to provide education and training on the construction of earthquake-resistant houses based on the latest SNI seismic regulations for Buwun Mas Village builders to reduce risk due to earthquakes. The method used is to provide counseling and training to the masons and chief masons in the village of Buwun Mas. This activity was held on Saturday, 4 June 2022, and ran smoothly and in an orderly manner; during the implementation of the community service activities, the partners, in this case, the Buwun Mas Village government, the leaders and occupants of the Zainul Hafidz At-Taufiq Islamic Boarding School and the builders in Buwun Mas Village were very enthusiastically participated in counseling and training activities on earthquake resistant housing construction. This can be seen from the total number of participants reaching 54 people. This counseling and training activity is only for education and to increase the knowledge of the artisans in the village of Buwun Mas, Sekotong District.
Pendampingan Pembuatan Rencana Anggaran Biaya Kantor Desa Persiapan Sama Guna Kecamatan Tanjung Kabupaten Lombok Utara Ahmad Zarkasi; Adryan Fitrayudha; Heni Pujiastuti; Nurul Hidayati; Aulia Muttaqin; Maya Saridewi Pascanawati; Isfanari Isfanari; Erni Yustissiani; Hadi Rasikhun; Adiman Fariyadin; Dodik Kusumawanto; Syarifunnaji Ridho; Haidir Azim
Rengganis Jurnal Pengabdian Masyarakat Vol. 3 No. 1 (2023): Mei 2023
Publisher : Pendidikan Matematika, FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/rengganis.v3i1.298

Abstract

Sama Guna Village is a burning village, according to North Lombok Regent Regulation Number 12 of 2015 and the Governor of West Nusa Tenggara Number 100/897/PEM. Sama Guna Village has obtained its operational rights to run the wheels of its organization. However, infrastructure facilities are still relatively minimal, as the office currently occupied is still on loan. The purpose of this service is to provide knowledge in making the budget plan required for the construction of the Sama Guna Village Office in accordance with PUPR Ministerial Regulation No. 1 of 2022. The method used is the presentation and discussion of PowerPoint slide media, which is then followed by assistance in making RAB. The activity took place on Wednesday, March 8, 2023, from 9.30 to 13.00 WITA, according to the agreement with the Head of the Sama Guna Village, in the meeting hall of the Sama Guna Village Office. This activity ran smoothly and in an orderly manner. During the implementation of the activity, the participants were very enthusiastic about participating in the activity; this was seen from the total number of participants, which reached more than 25 and was attended by the village head, devices, Babinsa, and the local community.
Pendampingan Pekerjaan Rehab Masjid Nurul Huda Dusun Mentokan Desa Darek, Kabupaten Lombok Tengah Muhammad Khalis Ilmi; Hamdani, Hafiz; Fitrayudha, Adryan; Zarkasi, Ahmad; Swahip, Swahip; Hidayati, Nurul; Ramadhan Hidayat, Ari; Puteri Samengasbumi, Ringgi; Fariyadin, Adiman; Syailendra Ubaidillah, Aji; Sukuryadi, Sukuryadi; Toyyib, Mukhtar; Basir, Muhammad
Rengganis Jurnal Pengabdian Masyarakat Vol. 4 No. 2 (2024): November 2024
Publisher : Pendidikan Matematika, FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/rengganis.v4i2.488

Abstract

Masjid merupakan bangunan tempat beribadah bagi umat Islam. Hampir setiap Dusun di Pulau Lombok khusunya, memiliki Masjidnya masing-masing dan salah satunya adalah Dusun Mentokan. Dusun ini berada di Desa Darek Kecamatan Praya Barat Daya, Kabupaten Lombok Tengah. Didasari oleh peningkatan jumlah penduduk dan umur bangunan yang sudah cukup tua, maka masyarakat setempat bersepakat untuk melakukan kegiatan rehab pada Masjid Nurul Huda. Namun, hal tersebut menjadi suatu kegiatan yang cukup berat bagi masyarakat karena didasarkan kepada: keterbatasan anggaran, pengoptimalan pemanfaatan dana dan SDM masyarakat yang notabene sebagian besar adalah petani dan buruh harian lepas. Sebagai tenaga pengajar dalam bidang Teknik Sipil dan aktif dalam bidang pembangunan, serta sebagai bentuk pengabdian keilmuan kepada masyarakat, maka dilakukan pendampingan dalam kegiatan rehab Masjid Nurul Huda Dusun Mentokan. Dengan dimulai dari kegiatan: pengukuran; brainstorming dengan masyarakat; rembuk dan pendampingan pembuatan DED; dan pendampingan pelaksanaan pembangunan, maka rehab terhadap Masjid Nurul Huda Dusun telah diselesaikan dengan pengelolaan dana yang baik, tepat mutu dan guna.
Pemanfaatan HFRP (Henequen Fiber Reinforced Polymer) Sebagai Perkuatan pada Balok Kayu Sengon Fitrayudha, Adryan; Hidayati, Nurul; Zarkasi, Ahmad; Safitri, Nura
Konstruksia Vol 16, No 1 (2024): Jurnal Konstruksia Vol 16 No. 1 Tahun 2024
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jk.16.1.50-57

Abstract

Penelitian ini berfokus pada sejauh mana kekuatan mekanis material HFRP (Henequen Fiber Reinforced Polymer) yang akan dijadikan sebagai material perkuatan pada sandwich panel balok kayu sengon (kayu mutu rendah) dengan pembanding kayu jati (kayu kualitas baik). HFRP merupakan material komposit yang disusun menggunakan proporsi campuran 60% fraksi volume matriks polymer dengan 40% fraksi volume serat tanaman henequen. Matriks polymer yang digunakan berupa resin polyester yang umum digunakan dalam manufaktur perkapalan maupun aerospace modelling, sedangkan serat alam yang digunakan berasal dari serat daun tanaman henequen yang banyak dibudidayakan di lahan kritis yang terdapat di area perbukitan. Tahap selajutnya komposit HFRP dibentuk menjadi plat strip dengan ketebalan 3,5 mm yang kemudian akan diaplikasikan sebagai skin pada balok sandwich panel dengan bahan core kayu sengon. Pembuatan dan pengujian benda uji sandwich panel mengacu pada standar ASTM C 393-94 dengan dimensi berupa balok berukuran 25 x 50 x 550 mm. Pengujian kuat lentur menggunakan metode four point bending menggunakan mesin flexure testing machine. Hasil pengujian menunjukkan bahwa kuat lentur rata-rata pada balok sandwich panel HFRP kayu sengon sebesar 168 MPa, lebih tinggi 24 % dibandingkan kuat lentur balok kayu jati utuh yang hanya mencapai nilai rata-rata kuat lentur 127 MPa. Sedangkan besarnya lendutan rata-rata yang terjadi pada sandwich panel HFRP sebesar 20 mm. Berdasarkan hasil pengujian mekanis tersebut dapat disimpulkan bahwa pemanfaatan HFRP sebagai bahan perkuatan mampu meningkatkan kapasitas tegangan lentur pada kayu sengon (kayu kualitas rendah) hingga melampaui kayu jati (kayu kualitas baik).
Pemanfaatan Sampah Plastik Menjadi Eco-brick sebagai Teknologi Tepat Guna di Desa Lembah Sari, Kecamatan Batu Layar, NTB Hidayati, Nurul; Fitrayudha, Adryan; Zarkasi, Ahmad; Khalis Ilmi, Muhammad; Yustissiani, Erni; Rasikhun, Hady; Samengasbumi, Ringgi Puteri; Irawan, Feri; Amaelisa, Viara; Ekasapta, Febrian
Rengganis Jurnal Pengabdian Masyarakat Vol. 5 No. 2 (2025): November 2025
Publisher : Pendidikan Matematika, FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/rengganis.v5i2.372

Abstract

Lembah Sari Village is one of the villages located in Batu Layar sub-district, West Lombok Regency, West Nusa Tenggara. The village has an area of 500 hectares with a population of 3,161 people. Lembah Sari Village is surrounded by hills and lots of green land, making it a special attraction for visitors to the village. The large population in Lembah Sari Village has its own problems, namely the number of villagers who use plastic waste in their daily activities so that this becomes a problem that needs to be addressed. As a form of scientific service to the community, the teaching staff together with Civil Engineering students of Muhammadiyah Mataram University together provide assistance in utilizing plastic waste into eco-bricks which are appropriate technology. This eco-brick is made by utilizing plastic waste around the village and then utilized into a form of building material or other materials. This eco-brick can be one of the solutions to reduce plastic waste in Lembah Sari village and be utilized as a business for the Lembah Sari village community
Analysis of Shear Wall Placement Configuration on Building Structure Behavior Hidayati, Nurul; Zarkasi, Ahmad; Hariyadi, Hariyadi; Sahlinda, Ranni
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 10, No 1 (2025): EDISI MARET 2025
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v10i1.6197

Abstract

Lombok Island is one of the earthquake-prone areas, located between two earthquake generators. Based on these conditions, it is expected that construction in earthquake-prone areas can meet the standards. Shear walls are one of the earthquake-resistant structural systems used to resist lateral forces. Three alternative shear wall shapes will be analyzed using the numerical method: the L, I, and T shapes. The types of loads to be analyzed are dead loads, live loads, and earthquakes. Drawing from the findings of the conducted analysis, it is discovered that the most effective shear wall position in resisting lateral forces is the shear wall located at the corner of the building, based on the values of the drift that occur in the x and y directions. In addition, increasing the number of shear walls can reduce the internal forces that structural components experience. The optimum drift value is obtained from alternative 1, the L-shaped shear wall (elbow), with a drift value of 0.000495 mm in the x direction and 0.000883 in the y direction.
Experimental Study on the Utilisation of Independent Wire Fibre Core Steel Wire Rope Braces to Enhance the Stability of a 2d Concrete Portal against Lateral Forces Zarkasi, Ahmad; Fitrayudha, Adryan; Hidayati, Nurul; Santika, Yuliana; Marsa D.P, Khendy
Journal La Multiapp Vol. 6 No. 3 (2025): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v6i3.2170

Abstract

Structural stability in construction, especially in buildings exposed to lateral forces due to earthquakes, is very important to consider. This research aims to explore the effectiveness of using Independent Wire Fibre Core (IWFC) steel wire rope braces in strengthening two-dimensional (2D) concrete portals. The method used is a series of laboratory tests to measure the performance of concrete portals equipped with IWFC braces. Concrete portals with dimensions of 1.00 m in the width direction and 1.50 m in the height direction were tested with lateral loading to simulate the effects of earthquakes. The test results showed that the use of IWFC braces increased the load resistance capacity of the portal by 16.13%, from 14.00 kN to 26.13 kN, and reduced the deviation by 30.43%, from 2.30 mm to 1.68 mm. In addition, the analysis showed an increase in the response modification factor (R) from 4.69 to 5.03, while the Cd value of the non-braced portal was 3.29 using braces was 3.02 and the Ω0 value of the non-braced portal was 3.50 and after using braces was 2.84. These findings open up opportunities for the application of better structural strengthening techniques in order to improve the safety and stability of buildings in earthquake-prone areas.
Sustainable Utilisation of Beach Sand as Fine Aggregate Replacement and Its Effect on Concrete Strength with Admixtures Reinforcement Hamdani, Hafiz; Zarkasi, Ahmad; Fitrayudha, Adriyan; Akhsae, I Gede Anaga; Pratama, Khendy Marsha Duta
Journal La Multiapp Vol. 6 No. 3 (2025): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v6i3.2171

Abstract

This research was conducted to review the feasibility of beach sand from the Batu Bolong village of West Lombok Region as an alternative fine aggregate in concrete manufacturing. The background of this research is based on the decreasing supply of sand from rivers and mountains. The main objective of this research was to evaluate the compressive strength of concrete using beach sand, both with and without a washing process, and assess whether this material could be applied in structural construction. In addition to technical aspects, the local community's habit of utilizing beach sand is also part of the consideration in this study. The result oh the tests showed that the compressive strength of normal concrete without admixtures at 3, 7, and 28 days of age were 16.42 MPa, 19.21 MPa, and 23.39 MPa, respectively. The addition of the "BETON MIX" admixture increased the strength to 20.78 MPa, 23.38 MPa, and 26.44 MPa. Meanwhile, concrete using washed beach sand showed compressive strengths of 22.67 MPa, 23.61 MPa, and 25.16 MPa. The concrete with unwashed beach sand produced strengths of 21.72 MPa, 22.40 MPa, and 23.08 MPa. The results of this study indicate that sand from Batu Bolong beach has the potential to be a substitute for fine aggregate in concrete. However, its use must still consider ecological impacts so as not to disturb the balance of the coastal environment.
Co-Authors Adryan Fitrayudha Akhsae, I Gede Anaga Amaelisa, Viara Aulia Muttaqin Chairil Anhar Dodik Kusumawanto Ekasapta, Febrian Erni Yustissiani Fariyadin, M. Ruslin Anwar, Indradi Wijatmiko, Adiman Feri Irawan Hadi Rasikhun Hady Rasikhun Hafiz Hamdani Haidir Azim Hariyadi Hariyadi Hariyadi, Hariyadi Heni Pujiastuti Intan Novianti Isfanari Isfanari Khalis Ilmi, Muhammad Marsa D.P, Khendy Maya Saridewi Pascanawati Muhammad Basir Muhammad Khalis Ilmi Nurul Hidayati Nurul Hidayati Pratama, Khendy Marsha Duta Puteri Samengasbumi, Ringgi Rajabi Mubarak Ramadhan Hidayat, Ari RR. Ella Evrita Hestiandari Safitri, Nura Sahlinda, Ranni Samengasbumi, Ringgi Puteri Santika, Yuliana Sukuryadi, Sukuryadi Swahip, Swahip Syarifunnaji Ridho Toyyib, Mukhtar Ubaidillah, Aji Syailendra