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All Journal JURNAL TEKNIK SIPIL Teras Jurnal The Jurnal Arsip Rekayasa Sipil dan Perencanaan (Journal of Archive in Civil Engineering and Planning) Marine Kreatif Aceh International Journal of Science and Technology Journal of The Civil Engineering Student
Taufiq Saidi
Universitas Syiah Kuala
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Engineering Environmental Science Transportation

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PENGARUH DENSITAS ARUS TERHADAP PERILAKU RETAK BETON BERTULANG YANG MENGALAMI KOROSI TULANGAN Zahra Amalia; Taufiq Saidi; Teuku Budi Aulia; Mahlil Mahlil
TERAS JURNAL Vol 11, No 2 (2021): Volume 11 Nomor 2, September 2021
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v11i2.507

Abstract

Abstrak Korosi pada struktur beton betulang dapat mengurangi kinerja struktur dan umur layannya karena volume tulangan yang berkurang. Besarnya jumlah korosi yang dipengaruhi oleh laju korosi dapat digambarkan melalui besarnya densitas arus yang terjadi. Jumlah korosi yang terjadi mempengaruhi perilaku retak pada beton bertulang, oleh karen itu, pada studi ini dilakukan uji eksperimental untuk mengevaluasi pengaruh densitas arus terhadap perilaku retak permukaan beton dari struktur beton bertulang yang mengalami korosi tulangan. Pengujian dilakukan dengan mengaplikasikan variasi densitas arus yaitu 900 µA/cm2, 500 µA/cm2, 200 µA/cm2 and 100 µA/cm2 pada pengujian korosi secara elektrik menggunakan larutan NaCl sebagai elektrolit untuk menghasilkan ion Cl-. Benda uji yang digunakan adalah balok dengan luas penampang 150x150 mm2 dan panjang benda uji 300 mm. Tulangan baja diameter 19 mm digunakan pada tengah penampang. Hasil pengujian menunjukkan bahwa perilaku retak dari beton bertulang yang mengalami korosi pada tulangannya memiliki kurva yang bilinear. Selain itu, hasil pengujian menunjukkan bahwa densitas arus yang rendah memiliki kecepatan retak permukaan beton yang lebih tinggi jika dibandingkan dengan benda uji dengan menggunakan densitas arus yang tinggi. Kata kunci: korosi, beton bertulang, produk korosi, retak, densitas arus Abstract Corrosion in reinforced concrete structure can reduce structure performance and its service life due to rebar mass loss. Corrosion amount influenced by corrosion rate can be figured out by using current density. Corrosion amount influences the crack behavior of reinforced concrete, therefore, in this study, experimental study was performed to evaluate the effect of current density to surface concrete cracking behavior of corroded reinforced concrete structure. Accelerated corrosion test tests were conducted with various current density. It was 900 µA/cm2, 500 µA/cm2, 200 µA/cm2 and 100 µA/cm2. NaCl solution was used as electrolyte to produce ion Cl-. The specimens were beam with cross section area 150x150 mm2 and 300 mm in length. Rebar with diameter 19 mm was applied in the center of specimen. The results showed that cracking behavior of corroded rebar has bilinear curve that shows the effect of corrosion products movement through cracks. Furthermore, lower corrosion rate has higher cracking speed than higher corrosion rate. Keywords: corrosion, reinforced concrete, corrosion products, cracking, current density
PENGARUH KONFIGURASI SENGKANG TERHADAP KEKAKUAN KOLOM YANG DIBEBANI GAYA GESER DAN AKSIAL TEKAN 0,2 P0 Munawir Munawir; Taufiq Saidi; Rudiansyah Putra
Jurnal Teknik Sipil Vol 1, No 2 (2012)
Publisher : Jurnal Teknik Sipil

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Abstract

Fokus utama penelitian ini ditujukan untuk mengkaji pengaruh konfigurasi sengkang terhadap kekakuan kolom yang dibebani beban aksial konstan sebesar 229 kN atau setara 0,2 Po; dimana Po merupakan kapasitas nominal aksial kolom beton bertulang berdimensi 200 x 200 mm2 dengan mutu beton (f’c) = 24 MPa, menggunakan tulangan longitudinal 12 D 11,6 (fy= 356,5 MPa) dan tulangan sengkang berdiameter 5,6 mm dengan fy = 611,3 MPa. Penelitian ini diaplikasikan pada empat benda uji kolom yang divariasikan konfigurasi sengkangnya berupa: sengkang  normal, S0 (□); sengkang tiga lengan, S1 (   ); sengkang crossties, S2 (    ) dan sengkang diamond, S3 (    ). Panjang kolom yang diteliti adalah L = 580 mm. Saat dilakukan pengujian, bagian ujung bawah kolom tertumpu secara kaku dan ujung atasnya dipasangkan bearing pemberi beban yang terhubung secara langsung dengan load cell vertical sehingga beban aksial tekan yang diberikan tegak lurus terhadap bidang kontak pada permukaan atas kolom. Bearing pemberi beban berprilaku sebagai tumpuan rol yang tidak menghambat ujung atas kolom untuk berdefleksi saat dibebani beban lateral yang disalurkan melalui load cell horizontal. Proses pembebanan diawali dengan pembebanan aksial sampai tercapai beban aksial konstan rencana dan diteruskan dengan pembebanan geser dari gaya dorong load cell horizontal yang diberikan secara perlahan sampai dengan benda uji kolom mengalami kehancuran. Hasil penelitian menunjukkan bahwa penambahan tulangan sengkang ekstra mampu meningkatkan kekakuan kolom. Berdasarkan hasil perhitungan kekakuan kolom berdasarkan data defleksi yang terjadi saat beban geser kolom yang diberikan sebesar V=90 kN siperoleh rasio nilai kekakuan relative kolom terhadap penampang utuh (EI0) sebesar 0,622; 0,685; 0,762 dan 0,793 berturut-turut untuk kolom dengan tulangan sengkang normal (S0), sengkang tiga lengan (S1). Nilai kondisi ujung yang memenuhi untuk kolom yang ujung-ujungnya tertumpu seperti pada penelitian ini dipenuhi oleh k= 1,54 yang diperoleh melalui trial and assessment.Kata kunci : kolom beton bertulang, beban tekan aksial, gaya geser, nilai kekakuan kolom, fakor kondisi ujung kolom.
POLA KEHANCURAN KOLOM BETON BERTULANG YANG DIBEBANI TEKAN AKSIAL MURNI DENGAN VARIASI JARAK SENGKANG Misdar Misdar; Taufiq Saidi; Rudiansyah Putra
Jurnal Teknik Sipil Vol 1, No 2 (2012)
Publisher : Jurnal Teknik Sipil

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Abstract

Tujuan penelitian ini adalah untuk mengetahui pola kehancuran dan kapasitas aksial murni akibat dari variasi jarak tulangan sengkang pada kolom beton bertulang bertumpuan jepit. Benda uji kolom bertulang persegi berukuran 12 x 12  cm2, tinggi 60 cm, terhubung dengan balok 20 x 30 x 60 cm3. Jumlah benda uji 3 buah dengan variasi jarak sengkang 100 mm, 150 mm dan 200 mm. Tulangan utama menggunakan besi ulir 88 mm dan tulangan sengkang menggunakan besi polos Ǿ 6mm, mutu beton rencana 25 MPa. Beban aksial diberikan dalam arah vertikal sehingga beban puncak sampai benda uji kolom hancur. Pemberian beban, regangan beton, regangan tulang utama dan sengkang, serta defleksi vertical dicatat dengan Portable Data Logger, dan pola retak diamati secara visual. Hasil penelitian menunjukkan bahwa seluruh benda uji mengalami kehancuran tekan karena regangan beton sudah mencapai nilai maksimum sebelum luluhnya tulangan. Kapasitas aksial akan semakin menurun bila jarak sengkang dipasang terlalu rapat ataupun terlalu renggang. Kapasitas aksial yang diperoleh pada saat beban maksimum untk benda uji kolom S0 sebesar 388,6 kN, benda uji kolom S1 sebesar 407,9 kN, dan benda uji kolom S2 sebesar 373,8 kN.Kata kunci : kapasitas aksial, jarak tulangan sengkang, kolom beton bertulang
PENGEMBANGAN MESIN PAKAN OTOMATIS MEMANFAATKAN ENERGI MATAHARI UNTUK BUDIDAYA BIOTA AIR SEBAGAI SALAH SATU SOLUSI KETAHANAN PANGAN DAN PEMANFAATAN ENERGI TERBAHARUKAN DI MASA PANDEMI Ichsan Setiawan; Sarwo Edhy Sofyan; Taufiq Saidi; Syarifah Meurah Yuni; Lulusi Lulusi; Said Amir Azan; Akram Tamlicha
Jurnal Marine Kreatif Vol 5, No 2 (2021): Marine Kreatif
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmk.v5i2.4478

Abstract

The province of Aceh is known for its coastal area which has enormous potential for the development of aquaculture of aquatic biota, both freshwater and saltwater communities. The potential for production from freshwater and saltwater fish businesses will be even more exciting in 2021. This is because the amount of fish consumption per capita of the world's population reaches 19.6 kg per year. This value is obtained from the results of estimates through the United Nations Food Agency in 2011. For this matter, various matters relating to the cultivation system must be prepared, starting from the stage of the enlargement process to the stage of feeding or baiting which is more regular and has precise calculations. The purpose of making this automatic feed machine product is to make it easier for aquatic biota cultivators the process of feeding aquatic biota in ponds and ponds through the development of an automatic feed distribution system equipped with systematic timing. With this equipment, the perpetrators of cultivating aquatic biota are able to provide feed easily and regularly so that it helps avoid aquatic biota experiencing a lack of feed which ends in death. The biggest benefit is that cultivators have time savings as well as labor cost savings. The results of this equipment manufacture in the form of a feed control system and feed spreader automatically assisted by the supply of solar power directly to the solar panel so that it is able to convert light energy and sunlight into electrical energy. The output of this product is expected to be able to provide the right solution to cultivators in increasing income and making it easier to use easy and efficient tools.
PENGARUH LEBAR SERAT ABAKA SEBAGAI MATERIAL NFRP UNTUK KUAT GESER BALOK BETON BERTULANG Wirahman Salvana; Taufiq Saidi; Iskandar Hasanuddin; Muttaqin Hasan; Zahra Amalia
Jurnal Arsip Rekayasa Sipil dan Perencanaan Vol 5, No 1 (2022): Jurnal Arsip Rekayasa Sipil dan Perencanaan
Publisher : Prodi Magister Teknik Sipil Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jarsp.v5i1.24581

Abstract

Fiber Reinforced Polymer (FRP) is an alternative for planning, repairing, and strengthening structures. FRP is a combination of fiber as reinforcement and resin as adhesive. Reinforcing materials can be made of carbon, aramid, glass, and natural fibers. Utilization of Natural Fiber Reinforced Polymer (NFRP) FRP with natural fibers can be more economical. The natural fiber used in this research is abaca fiber which is often found and is not used for structural reinforcement. The purpose of this study was to determine the increase in shear strength of reinforced concrete beams with different widths of NFRP abaca fiber. NFRP Abaca fiber is fully wrapped (complete wrapping) on the surface of the reinforced concrete beam. The study was conducted on four reinforced concrete beams measuring 15 cm x 30 cm x 220 cm with simple support with two load points to determine the effect of abaca fiber width on increasing the shear strength of the beam. One specimen as a control test object and three specimens reinforced with Abaca Fiber NFRP with variations in fiber width of 2.5 cm, 5 cm, and 7.5 cm, respectively. The test results show an increase in the shear capacity of reinforced concrete beams as the fiber width increases. The flexural failure occurred in the test object with a width of 7.5 cm, this was the case that the shear capacity of the beam had exceeded the flexural capacity of the beam.
STUDI PERILAKU LEKATAN ANTARA BETON DAN NATURAL FIBER REINFORCED POLYMER (NFRP) DENGAN UJI LEKATAN GESER Muhammad Azwar; Taufiq Saidi; Muttaqin Hasan; Zahra Amalia
Jurnal Arsip Rekayasa Sipil dan Perencanaan Vol 5, No 2 (2022): Jurnal Arsip Rekayasa Sipil dan Perencanaan
Publisher : Prodi Magister Teknik Sipil Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jarsp.v5i2.25081

Abstract

Reinforcement and repair of reinforced concrete structures using Fiber Reinforced Polymer (FRP) composites have been widely used. However, the high price is one of the obstacles to applying it. Utilization of natural fiber as a Natural Fiber Reinforced Polymer (NFRP) composite material is an alternative because, in addition to its abundant availability in nature, natural fiber also has low specific gravity, is environmentally friendly, and has a more economical production cost. In this study, natural fibers were used as a substitute for synthetic polymer fibers for strengthening and repairing reinforced concrete structures. This study aims to determine the bond strength between concrete and NFRP. The benefit of this research is to provide an overview of the behavior of the bonding strength of NFRP so that it can be applied to the reinforcement and repair of reinforced concrete structures. The bond strength behavior between concrete and NFRP was tested experimentally. The parameters used were the type of natural fiber (abaka, ramie, pineapple, Samia's silk), the type of adhesive (epoxy, polyester, thixotropic epoxy), and the number of layers of fiber. The test object used the form of a beam (100x100x300) mm and has a single reinforcement of 10 mm in the middle of the cross-section. The width of the NFRP is 50 mm with a bond length of 120 mm. Strain gauges are used on NFRP every 50 mm. In addition, strain gauges are also installed on reinforcement and concrete. A result, NFRP bonding can increase the tensile strength capacity of reinforced concrete beams. Bonding of type-b abaca fiber composite with polyester adhesive is the composite that gives the most significant increase in tensile strength capacity. The Beams with three-layer type-b abaka composite bonded with polyester adhesive experienced the highest increase in tensile strength capacity reaching 47.25%. The results of this study indicate the potential of NFRP as a retrofitting method and further research is needed so that it can be applied to reinforced concrete structures.
Contribution of Transverse Reinforcement Configuration on Concrete Shear Capacity of RC Column Taufiq Saidi; Rudiansyah Putra; Zahra Amalia; Munawir Munawir
Aceh International Journal of Science and Technology Vol 8, No 3 (2019): December 2019
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (983.578 KB) | DOI: 10.13170/aijst.8.3.14049

Abstract

Proper design of transverse reinforcement in the RC column is needed to maintain its ability to deform under axial and shear load safely. Even though mandatory building codes for transverse support of the RC column exist, shear failure was still found in the last high earthquake in Pidie, Aceh, in 2016. Therefore, as an attempt to improve RC column strength and elasticity, the effect of transverse reinforcement configuration was evaluated experimentally to a column subjected to an axial and shear load. The experiment was conducted by using four-column specimens with a cross-section 200 x 200 mm. Four types of transverse reinforcement configurations were applied in each column. The test was carried out by loading an axial load always and shear load gradually until its failure. The test results show that the configuration of transverse reinforcement has a significant effect of maintaining column stiffness, which was subjected to compressive axial load and shear load. Furthermore, the arrangement of transverse reinforcement influences the compressive strength significantly and enhance the concrete shear capacity of a column due to its confinement effect.
Behaviour Analysis of Strengthened-RC Beam with Natural Fiber Reinforced Polymer (NFRP) based on Abaca Fiber by Using Finite Element Method Taufiq Saidi; Muttaqin Hasan; Zahra Amalia; Muhammad Iqbal
Aceh International Journal of Science and Technology Vol 11, No 2 (2022): August 2022
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (570.205 KB) | DOI: 10.13170/aijst.11.2.26520

Abstract

The use of synthetic Fiber Reinforced Polymer (FRP) as a composite material is an alternative material that has been widely used for strengthening and repairing reinforced concrete structures. However, the high price is one of the obstacles in applying synthetic FRP materials in developing countries such as Indonesia. Utilization of natural fiber as a Natural Fiber Reinforced Polymer (NFRP) composite material is an alternative, especially in shear strengthening of reinforced concrete beams. Because it has good tensile strength and also is environmentally friendly. Technological developments in the field of computing make modelling various aspects easier. One of them is modelling reinforced concrete (RC) beams. ATENA V534 is a software that can be used for finite element-based modelling. Therefore, in this study, the ATENA V534 software was used to evaluate the results of research and testing behaviour of reinforced concrete beams from the previous studies about strengthened beam for shear by using NFRP. Behaviour that is evaluated in the form of load and deflection, the pattern of cracks and failure, and stress and strain of reinforcements. The numerical results obtained in ATENA V534 showed in a good agreement with experimental results.
Tensile Strength of Natural Fiber in Different Type of Matrix Taufiq Saidi; Muttaqin Hasan; Zahra Amalia
Aceh International Journal of Science and Technology Vol 11, No 2 (2022): August 2022
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1116.824 KB) | DOI: 10.13170/aijst.11.2.26175

Abstract

In recent years, the used of product based with low environmental impact has become one of the considerations in the construction structure. Attention of the researchers towards the development of natural material has been increasing. The use of natural fibers as composite materials for strengthened structure have been studied. However, natural fibers are influenced by the hydrophilic nature and its specific morphology. Thus, research related to the natural fiber composite materials still needs to be explored. This study aims to evaluate the tensile strength of natural fiber composite materials based on the type of fiber, fiber layer used and its type of resin according to ASTM D3039. The results show that type of fiber, fiber layer used and its type of resin in the composite matrix considerably affects its tensile strength performance.
Perkuatan Seismik Struktur Gedung Berlantai Tujuh Menggunakan Sistem Bresing Baja Alhadi Setiawan; Muttaqin Hasan; Taufiq Saidi
TERAS JURNAL Vol 13, No 1 (2023): Volume 13 No 1, Maret 2023
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v13i1.857

Abstract

Abstrak Struktur Gedung BSI Cut Mutia Banda Aceh mengalami beberapa retakan pada balok dan kolom akibat gempa sehingga memerlukan suatu perkuatan dengan menganalisis struktur menggunakan metode pushover untuk mengetahui gaya geser dan displacement maksimum yang mampu ditahan oleh struktur pada kondisi eksisting maupun setelah diperkuat menggunakan bresing dan level kinerja serta mekanisme sendi plastis maupun simpangan antar lantai. Untuk pengembangan kurva kerapuhan digunakan metode Incremental Dynamic Analysis (IDA) untuk melihat tingkat probabilitas kerusakan struktur dari 10 rekaman gempa. Data yang diperlukan yaitu gambar perencanaan awal, mutu baja, mutu beton dan dimodelkan menggunakan software SAP2000, dilakukan analisis statis beban mati dan beban hidup serta analisis dinamis. Hasil penelitian menunjukkan profil bresing baja IWF 150x150x10x7 memenuhi keamanan untuk sistem perkuatan. Simpangan antar lantai menggunakan bresing lebih kecil dari pada kondisi eksisting serta evaluasi displacement dan drift ratio dari data riwayat gempa lebih rentan terhadap beban gempa Simeulue 1 dengan nilai PGA 1,281 g. Kata kunci: Perkuatan Seismik, Pushover, Time History, IDA, Kurva Kerapuhan  Abstract The structure of the BSI Cut Mutia Banda Aceh Building has several cracks in the beams and columns due to the earthquake, so it requires strengthening by analyzing the structure using the pushover method to determine the maximum shear and displacement forces that the structure can withstand in the existing conditions and after being strengthened using braces and performance levels as well as the mechanism of plastic hinges and drift between floors. The development of the fragility curve uses the Incremental Dynamic Analysis (IDA) method to show the probability level of structural damage from 10 recorded earthquakes. The data needed are initial planning drawings, steel quality, concrete quality and modeled using SAP2000 software, static analysis of dead and live loads and dynamic analysis is carried out. The results showed that the steel bracing profile IWF 150x150x10x7 met safety for reinforcement systems. The deviation between floors using braces is smaller than the existing conditions and the displacement and drift ratio evaluation from historical earthquake data is more susceptible to the Simeulue 1 earthquake load with a PGA value of 1.281 g. Keywords: Seismic Strengthening, Pushover, Time History, IDA, Fragility Curve.
Co-Authors Akram Tamlicha Alhadi Setiawan Bambang Setiawan Ichsan Setiawan Imam Muzhaffar Iskandar Hasanuddin Juellyan Juellyan Lulusi Lulusi Mahlil Mahlil Misdar Misdar Muhammad Azwar Muhammad Iqbal Munawir Munawir Munawir Munawir Muttaqin Hasan Muttaqin Hasan Muttaqin Hasan Muttaqin Muttaqin Rudiansyah Putra Said Amir Azan Sarwo Edhy Sofyan Siti Ghufrani Ajrina Syarifah Meurah Yuni Teuku Budi Aulia Wirahman Salvana Zahra Amalia