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All Journal Civil Engineering Journal JUTEKS - Jurnal Teknik Sipil INSIST (International Series on Interdisciplinary Research) Journal of Green Science and Technology Journal of the Civil Engineering Forum Jurnal Inovtek Seri Teknik Sipil dan Aplikasi (TekLA) TANJAK : Jurnal Pengabdian Kepada Masyarakat Journal of Green Science and Technology
Jauhari, Zev Al
Politeknik Negeri Bengkalis
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Transportation Other

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Behaviour Of Bamboo Reinforcement In Flexural Strength Of Sea Water Concrete Slab Alamsyah, Alamsyah; Waluyo, Hery; Zulkarnain, Muhammad; Ananda, Faisal; Aljauhari, Zev
Journal of Green Science and Technology Vol 3, No 2 (2019): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v3i2.2385

Abstract

World Resources Institute data shows that there will be a fresh water crisis in 2040 including Indonesia. Responding to the above, many studies have been carried out using seawater, one of which is on concrete. Several studies have shown that seawater does not reduce the quality of concrete, but provides a corrosion effect on reinforcement.In this study, sea water concrete slabs have been made using bamboo as a reinforcement that will not corrode due to seawater. For concrete mix design refers to SNI SNI 03-2834-2000 and for slab flexural strength refers to 03-2847-2002. Slab specimens with sea water concrete that have been made consist of Slab concrete of steel reinforcement (SCS), Slab concrete of bamboo reinforcement V type notch (SCBV)? and Slab concrete of bamboo reinforcement? U type notch (SCBU).The result of the compressive strength of sea water concrete can reach the compressive strength of the plan. Tensile strength of bamboo reaches 223.5MPaand approaching the tensile strength of steel reinforcement. The maximum load of SCBV and SCBU were decrease than theoretical analysis of0.14% and 21.51% respectively. Otherwise, the maximum load of SCS greater than theoretical analysis with a difference of 14.67%. The flexural strength of the concrete slab was not affected by sea water as in compressive strength of cylinder.Keywords: Bamboo reinforcement slab, Flexural strength, Seawater concrete
Strengthening of Nurul Ilmi Mosque with Concrete Jacketing Fauzan Fauzan; Febrin Anas Ismail; Siska Apriwelni; Imelia Faradiza; Zev Al Jauhari
INSIST Vol 1, No 1 (2016)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (184.268 KB) | DOI: 10.23960/ins.v1i1.12

Abstract

Abstract—Nurul Ilmi moesque is one of building for worship located in University of Andalas. In 2008 the new building of mosques was designed using previous indonesian seismic code, SNI 1726: 2002. The right side of the new mosque was constructied in 2009. Due to the limitation of the budget, the construction of the left side of the mosque was continued on 2014. However, a new indonesian seismic code SNI 03-1726-2012 was established and the designed mosque should be revised based on the new indonesian seismic code.  Since the right side of the mosque was designed by using the old seismic code (SNI 1726: 2002), so it is necessary to evaluate the strength of the structure by using the seismic code (SNI 03-1726-2012). Based on the analysis results, it was found that the right side of the building structure is not strong enough to resist the combination loads acting on the structure, especially the earthquake load. Therefore, it is necessary to strengthening (retrofitting) the right side of the building structure before connecting with the left side of the building. In this study, the concrete jacketing method  was used to the retrofit the column structure. The results show that the jacketing method is effective to increase the capacity of the column and reduce internal forces and displacements that occur in the structure of the mosque, so the structure can resist the working loadsKeywords—column, concrete jacketing, earthquake, displacement, strengthening.
Behaviour Of Bamboo Reinforcement In Flexural Strength Of Sea Water Concrete Slab Alamsyah Alamsyah; Hery Waluyo; Muhammad Zulkarnain; Faisal Ananda; Zev Aljauhari
Journal of Green Science and Technology Vol 3, No 2 (2019): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v3i2.2385

Abstract

World Resources Institute data shows that there will be a fresh water crisis in 2040 including Indonesia. Responding to the above, many studies have been carried out using seawater, one of which is on concrete. Several studies have shown that seawater does not reduce the quality of concrete, but provides a corrosion effect on reinforcement.In this study, sea water concrete slabs have been made using bamboo as a reinforcement that will not corrode due to seawater. For concrete mix design refers to SNI SNI 03-2834-2000 and for slab flexural strength refers to 03-2847-2002. Slab specimens with sea water concrete that have been made consist of Slab concrete of steel reinforcement (SCS), Slab concrete of bamboo reinforcement V type notch (SCBV)  and Slab concrete of bamboo reinforcement  U type notch (SCBU).The result of the compressive strength of sea water concrete can reach the compressive strength of the plan. Tensile strength of bamboo reaches 223.5MPaand approaching the tensile strength of steel reinforcement. The maximum load of SCBV and SCBU were decrease than theoretical analysis of0.14% and 21.51% respectively. Otherwise, the maximum load of SCS greater than theoretical analysis with a difference of 14.67%. The flexural strength of the concrete slab was not affected by sea water as in compressive strength of cylinder.Keywords: Bamboo reinforcement slab, Flexural strength, Seawater concrete
PERBANDINGAN KARAKTERISTIK BETON SERAT KAWAT BENDRAT f’c 20 MPa DENGAN CAMPURAN AIR GAMBUT DAN AIR SUMUR BOR Zev Al Jauhari; Fia Apriani
Jurnal TeKLA Vol 2, No 1 (2020): TEKLA VOL. 2 N0 1
Publisher : Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (175.867 KB) | DOI: 10.35314/tekla.v2i1.1432

Abstract

Salah satu cara untuk meningkatkan kuat tarik beton adalah dengan menambahkan serat. Serat kawat dengan panjang dan jumlah tertentu dapat meningkatkannilai karakteristik beton. Penelitian ini menggunakan serat konvensional (kawat bendrat)dengan panjang 6 cm sebanyak 1% terhadap berat semen padacampuran beton. Nilai kuat tekan dan kuat tarik beton akan dibandingkan terhadap campuran air yang berbeda. Beton dengan campuran air sumur bor dan airgambut menggunakan mutu rencana f’c 20 MPa akan diuji pada hari ke-3, 7, 14, dan 28. Nilai kuat tekan dan kuat tarik rata-rata untuk beton normal (air sumurbor)adalah 22.5 MPa dan 2.35 MPa, sedangkan nilai kuat tekan dan kuat tarik beton menggunakan air gambut adalah 19.8 MPa dan dan 1.9 MPa. Penambahanserat kawat bendrat 1% pada beton menyebabkan penurunan pada nilai kuat tekan dan kuat tarik beton, pada campuran dengan air sumur bor adalah 14.6 MPadan 1.75 MPa, sedangkan pada air gambut adalah 15.75 MPa dan 1.7 MPa. Dari hasil pengujian, disimpulkan bahwa nilai karakteristik awal (hari ke 3-14)beton dengan campuran air gambut memiliki nilai yang lebih besar daripada beton dengan dengan campuran air sumur bor. Nilai kuat tekan dan kuat tarik betonair sumur bor maupun beton air gambut menurun dengan adanya penambahan serat kawat bendrat. Hal ini disebabkan berlebihnya jumlah atau ukuran seratpada campuran beton mengakibatkan beton menjadi sulit untuk homogen.
STUDI PARAMETRIK: KINERJA SEISMIK KOLOM KOMPOSIT EWECS (ENGINEERING WOOD ENCASED CONCRETE-STEEL) DENGAN BAJA PROFIL KING CROSS Zev Al Jauhari; Faisal Ananda; Fauzan Fauzan; Ruddy Kurniawan
JUTEKS : Jurnal Teknik Sipil Vol 3 No 2 (2018): JUTEKS (Jurnal Teknik Sipil)
Publisher : P3M- Politeknik Negeri Kupang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1175.228 KB) | DOI: 10.32511/juteks.v3i2.280

Abstract

Kolom komposit EWECS (Engineering Wood Encased Concrete-Steel) merupakan struktur komposit hybrid yang telah dikembangkan untuk zona seismik rendah dan tinggi. Studi eksperimental pada perilaku seismik kolom komposit EWECS telah dilakukan oleh Fauzan et. al, 2005. Untuk melengkapi dan memvalidasi hasil studi eksperimental, analisis numerik dilakukan pada kolom EWECS di bawah beban konstan aksial dan beban lateral siklik. Analisis berbasis metode elemen hingga ini dilakukan untuk mengetahui kinerja struktural kolom EWECS menggunakan baja profil king cross dan dibandingkan dengan hasil eksperimental. Analisis numerik menggunakan program ANSYS APDL v.14, untuk mengetahui perilaku seismik struktur kolom berupa karakteristik histeresis, distribusi tegangan utama, dan mode kegagalan. Hasil analisis numerik menunjukkan bahwa kolom EWECS memiliki kinerja yang sangat baik tanpa kerusakan parah, bahkan pada story drift akhir, R 5%. Kayu panel berkontribusi terhadap kapasitas kolom hingga R 5%, meskipun retak pada kayu muncul setelah R 3%. Secara umum, distribusi tegangan pada model FE dapat mewakili mode kegagalan spesimen kolom dengan baik. Analisis numerik studi parametrik juga dilakukan pada kolom komposit EWECS. Berdasarkan analisis studi parametrik, semakin besar tebal kayu maka semakin meningkat kinerja seismik kolom, namun besarnya disipasi energi cenderung tetap. Semakin tinggi mutu beton maka semakin meningkat kinerja seismik kolom, namun gaya geser maksimum hanya mengalami sedikit kenaikan
STUDI KOMPARASI EKSPERIMENTAL BALOK BETON BERTULANG DENGAN MENGGUNAKAN ABAQUS CAE SEBAGAI PERBANDINGAN NILAI BEBAN DAN LENDUTAN Bernando, Nofri; Jauhari, Zev Al; Garcya, Muhammad Gala
Jurnal TeKLA Vol 6, No 1 (2024): Vol.6 No.1 Juli 2024
Publisher : Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/tekla.v6i1.3471

Abstract

Effective field testing of concrete structures requires a great deal of rigor and understanding the response and behavior to concrete loads. The bending of the beam tends to be smaller, so reinforcing steel is used to increase the displacement of the beam. However, errors often occur in the implementation so that there is often a decrease in the quality of the concrete. The arrangement of the reinforcement is not in accordance with the requirements for the load received, so it is necessary to create a model according to the load to be applied without conducting multiple trials (trial errors). The abaqus CAE software is a modeling application that belongs to the Finite Element. Modeling reinforced concrete beams in the abaqus application for this study is expected to get results close to experimental tests in the field. namely the comparison between experimental test results of reinforced concrete beams with the results of analysis in the abaqus CAE software. The results of flexure testing of reinforced concrete beams in the field obtained a maximum load value of 106.22 KN with a deflection of 1.126 mm. While the modeling of reinforced concrete beams in the abaqus application obtained a maximum load value of 146.203 KN with a deflection of 4.83 mm.
STUDI PERBANDINGAN NILAI BEBAN DAN LENDUTAN EKSPERIMENTAL BALOK BETON BERTULANG DENGAN TAMBAHAN SIKACIM COCRETE ADDITIVE MENGGUNAKAN ABAQUS CAE Andi, Septian Rizki; Al Jauhari, zev; Garcya, Muhammad Gala
Jurnal TeKLA Vol 6, No 1 (2024): Vol.6 No.1 Juli 2024
Publisher : Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/tekla.v6i1.3497

Abstract

Effective testing of concrete structures in the field requires a lot of precision and understanding the response and behavior of loads, namely the comparison between experimental test results of reinforced concrete beams and the results of analysis in the CAE abaqus software. The abaqus CAE software is a modeling application that belongs to the Finite Element. Concrete with high quality is quite difficult to work. Therefore, the chemical Sikacim Concrete Additive is added to make work easier and maintain the quality of the concrete. This research will be a recommendation on the reinforcement placement arrangement that can increase the load value of the test object. Modeling reinforced concrete beams in the abaqus application for this study is expected to get results close to experimental tests in the field. The result with the addition of Sikacim Concrete Additive of 1% by weight of cement to the compressive strength of concrete has increased from normal concrete, namely from 25.81 MPa to 28.98 MPa. The results of flexure testing of reinforced concrete beams in the field obtained a maximum load value of 123.18 KN with a deflection of 1,07 cm. While the modeling of reinforced concrete beams in the abaqus application obtained a maximum load value of 155,738 KN with a deflection of 0.565  cm. the deflection of these 2 variations is a better recommendation compared to field testing and abaqus modeling without variations. The deflection in variation 1 is 0.485 cm with a load of 155.73 KN and variation 2 is 0.413 cm with a load of 178.477 KN.
Seismic and Tsunamis Vulnerability Assessment of the Shelter School Building Structure with and without Retrofitting Fauzan; Zev Al Jauhari; Geby Aryo Agista; Yokota, Atsushi; Masharya Eko Putra
Journal of the Civil Engineering Forum Vol. 11 No. 1 (January 2025)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jcef.13432

Abstract

Understanding the vulnerability of school shelters to tsunamis is crucial for developing effective mitigation strategies and increasing the resilience of coastal communities in the education sector. SDN 02 Sasak Ranah Pasisia, an elementary school in West Pasaman Regency, West Sumatera, Indonesia, had a shelter building constructed in 2010. However, the construction remains incomplete. A structural assessment using current Indonesian building codes and vulnerability analysis is necessary to proceed with construction and ensure the building’s strength against the working loads. Thestructural assessment revealed that several columns could not support the working load, necessitating local retrofitting. In this study, the retrofitting of the building was designed using concrete jacketing. Furthermore, structural fragility curves of the school building were developed before and after retrofitting against earthquake and tsunami loads. The seismic fragility curve was determined from the maximum displacement of the building for varied earthquake acceleration, using nonlinear time history dynamic response analysis scaled using the incremental dynamic analysis method and damage limits defined by ATC-40, characterized by Hazus. Meanwhile, the tsunami fragility curve was determined from the maximum displacement due to tsunami load for each variation of tsunami inundation depth. The vulnerability analysis results indicated that retrofitting the school building with concrete jacketing reduces the probability of building damage due to earthquake loads by 18% at the level of complete damage at a PGA of 0.520 g (based on the Indonesian Seismic Map). Similarly, it reduced the probability of building damage due to tsunami loads by 20%, at the level of complete damage corresponding to a tsunami wave height of 5.00 m for West Pasaman, Indonesia.
Behaviour Of Bamboo Reinforcement In Flexural Strength Of Sea Water Concrete Slab Alamsyah Alamsyah; Hery Waluyo; Muhammad Zulkarnain; Faisal Ananda; Zev Aljauhari
Journal of Green Science and Technology Vol 3 No 2 (2019): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v3i2.2385

Abstract

World Resources Institute data shows that there will be a fresh water crisis in 2040 including Indonesia. Responding to the above, many studies have been carried out using seawater, one of which is on concrete. Several studies have shown that seawater does not reduce the quality of concrete, but provides a corrosion effect on reinforcement.In this study, sea water concrete slabs have been made using bamboo as a reinforcement that will not corrode due to seawater. For concrete mix design refers to SNI SNI 03-2834-2000 and for slab flexural strength refers to 03-2847-2002. Slab specimens with sea water concrete that have been made consist of Slab concrete of steel reinforcement (SCS), Slab concrete of bamboo reinforcement V type notch (SCBV)  and Slab concrete of bamboo reinforcement  U type notch (SCBU).The result of the compressive strength of sea water concrete can reach the compressive strength of the plan. Tensile strength of bamboo reaches 223.5MPaand approaching the tensile strength of steel reinforcement. The maximum load of SCBV and SCBU were decrease than theoretical analysis of0.14% and 21.51% respectively. Otherwise, the maximum load of SCS greater than theoretical analysis with a difference of 14.67%. The flexural strength of the concrete slab was not affected by sea water as in compressive strength of cylinder.Keywords: Bamboo reinforcement slab, Flexural strength, Seawater concrete
Renovasi Rumah Produksi UMKM Gula Aren dari Kelapa Sawit di Kab. Rokan Hilir Lisya, Mutia; Jauhari, Zev Al
TANJAK : Jurnal Pengabdian Kepada Masyarakat Vol 5 No 1 (2024): TANJAK : Jurnal Pengabdian Kepada Masyarakat
Publisher : P3M Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/8tk3jw55

Abstract

Pertumbuhan usaha mikro, kecil dan menengah saat ini sangat berkembang dengan pesat. Sejak Tahun 2022, Politeknik Negeri Bengkalis  melalui UPT P3M sudah melakukan pembinaan pada beberapa Usaha Mikro, Kecil, dan Menengah (UMKM) yang berada di Provinsi Riau. Sebagai bentuk keberlanjutan kegiatan, pembinaan terhadap UMKM selanjutnya dilakukan di Kab. Rokan Hilir. Salah satunya adalah UMKM gula aren dari kelapa sawit yang beralamat di Jl. Lintas Menggala, Kec. Tanah Putih, Kab. Rokan Hilir, Provinsi Riau. Kondisi area produksi UMKM gula aren dari kelapa sawit saat ini banyak mengalami kerusakan, dengan kondisi tersebut menyebabkan kurangnya tingkat kenyamanan bagi karyawan yang bekerja pada unit produksi sehingga terjadi penurunan jumlah produksi produk yang dihasilkan. Oleh karena itu diperlukan suatu usaha untuk memperbaiki kondisi tersebut. Melalui Program Pengabdian kepada Masyarakat yang bersumber dari Dana PNBP, diusulkanlah renovasi rumah produksi, terutama elemen lantai dan dapur sehingga dapat memberikan dampak positif pada kenyamanan dan meningkatkan kinerja rumah produksi.
Co-Authors Alamsyah Alamsyah Andi, Septian Rizki Apriwelni, Siska Bernando, Nofri Faisal Ananda Fauzan Fauzan Fauzan Fauzan Fauzan Febrin Anas Ismail Fia Apriani Garcya, Muhammad Gala Geby Aryo Agista Hery Waluyo Imelia Faradiza Masharya Eko Putra Mutia Lisya Ruddy Kurniawan S.Pd. M Kes I Ketut Sudiana . Tomoya Matsui Waluyo, Hery Yokota, Atsushi Zulkarnain Zulkarnain