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Ngudiyono Ngudiyono
Jurusan Teknik Sipil Fakultas Teknik, Universitas Mataram
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MECHANICAL PROPERTIES OF AFTER-FIRE CONCRETE WITH RICE HUSK ASH (RHA) AS AN ADDITIONAL MATERIAL Joedono, Ngudiyono
Jurnal Teknik Sipil dan Perencanaan Vol 9, No 1 (2007): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The temperature above 200  oC at fire can cause reducing of the strength of concrete. To anticipate that condition, in order to enhance the strength, the use of rice husk ash (RHA) as an additional material is an alternative. The research would like to know the mechanical behavior and physical changing of after fire concrete with RHA. The specimens are concrete cylinder with 15 cm in diameter and 30 cm height. They are 54 specimens, 30 specimens are used for compression strength of normal concrete at various ages, and the less 24 specimens are used for the compression strength of after fire concrete. The test runs at 3, 7, 14, 28, and 90 days for normal concrete, and 90 days for after fire concrete. The temperatures of fire are 200, 400, 600, and      800 oC respectively with duration one hour. At temperature 200  oC, the compression strength of normal concrete lower than that of RHA concrete. In addition, at 400, 600, and 800 oC, the compression strength of normal concrete less decrease than that of RHA concrete Modulus elasticity of both normal and RHA concrete decrease after firing at 200 to 800 oC. At 400 to 600 oC, they have surface crack and color changing brown to black brown for normal concrete, also white brown for RHA concrete. At 800 ˚C, for normal concrete not only have surface cracks but also spalling. The colors of the concrete become white brown (at 600  oC), and white pink (at 800  oC).Pada saat kebakaran, bila suhu yang terjadi di atas 200 oC, kekuatan beton akan menurun. Penambahan abu sekam padi (RHA, rice husk ash) merupakan upaya memperbaiki mutu beton. Pada penelitian ini akan dikaji seberapa jauh penurunan kekuatan dan perubahan fisik beton dengan penambahan abu sekam padi 15 % pasca kebakaran. Benda uji berupa silinder beton dengan diameter 15 cm dan tinggi 30 cm.  Jumlah benda uji sebanyak 54 sampel, 30 sampel dipakai untuk kuat tekan pada umur yang berbeda, dan 24 sampel dipakai untuk uji kuat tekan beton pasca bakar. Pengujian kuat tekan beton dilakukan pada umur 3, 7, 14, 28, dan 90 hari untuk beton pra bakar, dan 90 hari untuk beton pasca bakar  Pembakaran dilakukan pada suhu 200, 400, 600, dan 800 oC, dengan lama pembakaran masing-masing 1 jam. Pada suhu 200 oC, beton normal mengalami kenaikan kuat tekan lebih kecil bila dibandingkan dengan kuat tekan beton dengan abu sekam padi. Pada suhu 400, 600, dan 800 oC beton normal mengalami penurunan kuat tekan  lebih kecil  dari penurunan kuat tekan beton dengan abu sekam padi. Modulus elastisitas beton normal maupun beton dengan abu sekam padi pasca bakar suhu 200hingga    800 oC mengalami penurunan. Pada suhu 400hingga 600 oC, beton normal maupun beton dengan RHA mengalami retak-retak permukaan (surface crack), dan perubahan warna, menjadi abu-abu kehitaman (beton normal), dan abu-abu (beton RHA). Pada suhu 800 oC beton normal selain mengalami retak-retak permukaan juga mengalami pengelupasan (spalling). Warna beton menjadi putih keabu-abuan (suhu 600  oC) dan merah muda keputih-putihan (suhu 800  oC). 
Penentuan Panjang dan Prosentase Serat Plastik Optimum Berdasarkan Hasil Uji CBR Campuran Tanah Lempung, Trass, Limbah Asetilen dan Serat Limbah Plastik Pujiastuti, Heni; Ngudiyono, Ngudiyono
Jurnal Teknik Sipil Vol 21, No 3 (2014)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1150.774 KB)

Abstract

Abstrak. Permasalahan limbah akhir-akhir ini menjadi permasalahan yang perlu segera diselesaikan. Salah satu solusi dalam menangani masalah limbah adalah dengan menggunakannya sebagai bahan struktur. Tujuan dari penelitian ini adalah meningkatkan nilai tambah bahan limbah dari pembuatan gas asetilen dan limbah plastik bekas kemasan air mineral dengan jenis Polypropylene (PP) sebagai bahan stabilisasi tanah lempung. Untuk menentukan panjang serat plastik optimum dan prosentase serat plastik optimum yang digunakan sebagai bahan tambah pada tanah lempung yang distabilisasi dengan 15% trass dan 5% limbah asetilen dilaksanakan pengujian di Laboratorium Geoteknik Universitas Muhammadiyah Mataram dan Laboratorium Struktur Universitas Mataram. Secara umum penelitian dilaksanakan sebagai berikut : sampel tanah lempung diambil dari Tanak Awu, Lombok Tengah, trass diambil dari Punikan, Lombok Barat, Limbah asetilen diambil dari Getap Mataram, serat plastik dipotong-potongdengan variasi panjang 5mm, 10mm, 15mm, 20mm, 25 mm, lebar 5mm dan prosentase 0% (tanpa serat), 0.5%, 1%, 1.5%, 2% dari berat keringnya, kemudian diuji CBR unsoaked. Hasil penelitian menunjukkan  panjang optimum serat plastik sebesar 20mm dan prosentase optimum serat plastik sebesar 1% dari berat keringnya mampu menghasilkan nilai kepadatan kering, nilai CBR dan nilai subgrade reaction tertinggi dari sampel uji berturut-turut sebesar 1.325 gr/cm3, 14.4% dan 397.14 MPa. Abstract. Waste problems recently become the problem that needs to be solved. One of the solution is dealing with waste to use it as a structural material. The purpose of this study is to increase the added value of waste materials from the manufacture of acetylene gas and scrap plastic waste packaging of mineral water with polypropylene (PP) type as the stabilizing agent of clay. To determine the optimum length of plastic fiber and the optimum percentage of plastic fiber which is used as an ingredient added on clay, stabilized with 15% trass and 5% of waste acetylene do testing in Geotechnical laboratory University of Muhammadiyah Mataram and Structures Laboratory, University of Mataram. Generally the research conducted as follows: clay soil samples taken from the Tanak Awu, Central Lombok, trass taken from Punikan, West Lombok, Waste acetylene taken from Getap Mataram, plastic fiber cut with the length variations of 5mm, 10mm, 15mm, 20mm, 25mm and 5mm in wide and percentage of 0% (without fiber), 0.5%, 1%, 1.5%, 2% of the dry weight, then tested CBR unsoaked. The results show the optimum length of plastic fibers is 20mm, and the optimum percentage of plastic fibers of 1% of the dry weight able produce the highest of dry density value, CBR value and value of subgrade reaction of test samples, respectively for 1.325 g/cm3, 14.4% and 397.14 MPa.
MECHANICAL PROPERTIES OF AFTER-FIRE CONCRETE WITH RICE HUSK ASH (RHA) AS AN ADDITIONAL MATERIAL Joedono, Ngudiyono
Jurnal Teknik Sipil dan Perencanaan Vol 9, No 1 (2007): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v9i1.6925

Abstract

The temperature above 200  oC at fire can cause reducing of the strength of concrete. To anticipate that condition, in order to enhance the strength, the use of rice husk ash (RHA) as an additional material is an alternative. The research would like to know the mechanical behavior and physical changing of after fire concrete with RHA. The specimens are concrete cylinder with 15 cm in diameter and 30 cm height. They are 54 specimens, 30 specimens are used for compression strength of normal concrete at various ages, and the less 24 specimens are used for the compression strength of after fire concrete. The test runs at 3, 7, 14, 28, and 90 days for normal concrete, and 90 days for after fire concrete. The temperatures of fire are 200, 400, 600, and      800 oC respectively with duration one hour. At temperature 200  oC, the compression strength of normal concrete lower than that of RHA concrete. In addition, at 400, 600, and 800 oC, the compression strength of normal concrete less decrease than that of RHA concrete Modulus elasticity of both normal and RHA concrete decrease after firing at 200 to 800 oC. At 400 to 600 oC, they have surface crack and color changing brown to black brown for normal concrete, also white brown for RHA concrete. At 800 ˚C, for normal concrete not only have surface cracks but also spalling. The colors of the concrete become white brown (at 600  oC), and white pink (at 800  oC).Pada saat kebakaran, bila suhu yang terjadi di atas 200 oC, kekuatan beton akan menurun. Penambahan abu sekam padi (RHA, rice husk ash) merupakan upaya memperbaiki mutu beton. Pada penelitian ini akan dikaji seberapa jauh penurunan kekuatan dan perubahan fisik beton dengan penambahan abu sekam padi 15 % pasca kebakaran. Benda uji berupa silinder beton dengan diameter 15 cm dan tinggi 30 cm.  Jumlah benda uji sebanyak 54 sampel, 30 sampel dipakai untuk kuat tekan pada umur yang berbeda, dan 24 sampel dipakai untuk uji kuat tekan beton pasca bakar. Pengujian kuat tekan beton dilakukan pada umur 3, 7, 14, 28, dan 90 hari untuk beton pra bakar, dan 90 hari untuk beton pasca bakar  Pembakaran dilakukan pada suhu 200, 400, 600, dan 800 oC, dengan lama pembakaran masing-masing 1 jam. Pada suhu 200 oC, beton normal mengalami kenaikan kuat tekan lebih kecil bila dibandingkan dengan kuat tekan beton dengan abu sekam padi. Pada suhu 400, 600, dan 800 oC beton normal mengalami penurunan kuat tekan  lebih kecil  dari penurunan kuat tekan beton dengan abu sekam padi. Modulus elastisitas beton normal maupun beton dengan abu sekam padi pasca bakar suhu 200hingga    800 oC mengalami penurunan. Pada suhu 400hingga 600 oC, beton normal maupun beton dengan RHA mengalami retak-retak permukaan (surface crack), dan perubahan warna, menjadi abu-abu kehitaman (beton normal), dan abu-abu (beton RHA). Pada suhu 800 oC beton normal selain mengalami retak-retak permukaan juga mengalami pengelupasan (spalling). Warna beton menjadi putih keabu-abuan (suhu 600  oC) dan merah muda keputih-putihan (suhu 800  oC). 
MECHANICAL PROPERTIES OF AFTER-FIRE CONCRETE WITH RICE HUSK ASH (RHA) AS AN ADDITIONAL MATERIAL Joedono, Ngudiyono
Jurnal Teknik Sipil dan Perencanaan Vol 9, No 1 (2007): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v9i1.6925

Abstract

The temperature above 200  oC at fire can cause reducing of the strength of concrete. To anticipate that condition, in order to enhance the strength, the use of rice husk ash (RHA) as an additional material is an alternative. The research would like to know the mechanical behavior and physical changing of after fire concrete with RHA. The specimens are concrete cylinder with 15 cm in diameter and 30 cm height. They are 54 specimens, 30 specimens are used for compression strength of normal concrete at various ages, and the less 24 specimens are used for the compression strength of after fire concrete. The test runs at 3, 7, 14, 28, and 90 days for normal concrete, and 90 days for after fire concrete. The temperatures of fire are 200, 400, 600, and      800 oC respectively with duration one hour. At temperature 200  oC, the compression strength of normal concrete lower than that of RHA concrete. In addition, at 400, 600, and 800 oC, the compression strength of normal concrete less decrease than that of RHA concrete Modulus elasticity of both normal and RHA concrete decrease after firing at 200 to 800 oC. At 400 to 600 oC, they have surface crack and color changing brown to black brown for normal concrete, also white brown for RHA concrete. At 800 ˚C, for normal concrete not only have surface cracks but also spalling. The colors of the concrete become white brown (at 600  oC), and white pink (at 800  oC).Pada saat kebakaran, bila suhu yang terjadi di atas 200 oC, kekuatan beton akan menurun. Penambahan abu sekam padi (RHA, rice husk ash) merupakan upaya memperbaiki mutu beton. Pada penelitian ini akan dikaji seberapa jauh penurunan kekuatan dan perubahan fisik beton dengan penambahan abu sekam padi 15 % pasca kebakaran. Benda uji berupa silinder beton dengan diameter 15 cm dan tinggi 30 cm.  Jumlah benda uji sebanyak 54 sampel, 30 sampel dipakai untuk kuat tekan pada umur yang berbeda, dan 24 sampel dipakai untuk uji kuat tekan beton pasca bakar. Pengujian kuat tekan beton dilakukan pada umur 3, 7, 14, 28, dan 90 hari untuk beton pra bakar, dan 90 hari untuk beton pasca bakar  Pembakaran dilakukan pada suhu 200, 400, 600, dan 800 oC, dengan lama pembakaran masing-masing 1 jam. Pada suhu 200 oC, beton normal mengalami kenaikan kuat tekan lebih kecil bila dibandingkan dengan kuat tekan beton dengan abu sekam padi. Pada suhu 400, 600, dan 800 oC beton normal mengalami penurunan kuat tekan  lebih kecil  dari penurunan kuat tekan beton dengan abu sekam padi. Modulus elastisitas beton normal maupun beton dengan abu sekam padi pasca bakar suhu 200hingga    800 oC mengalami penurunan. Pada suhu 400hingga 600 oC, beton normal maupun beton dengan RHA mengalami retak-retak permukaan (surface crack), dan perubahan warna, menjadi abu-abu kehitaman (beton normal), dan abu-abu (beton RHA). Pada suhu 800 oC beton normal selain mengalami retak-retak permukaan juga mengalami pengelupasan (spalling). Warna beton menjadi putih keabu-abuan (suhu 600  oC) dan merah muda keputih-putihan (suhu 800  oC). 
Pemanfaatan Bambu Lokal Sebagai Struktur Kandang Ayam Sistem Baterai Di Kelurahan Kelayu Utara Kabupaten Lombok Timur Fathmah - Mahmud; I Nyoman Merdana; Hariyadi Hariyadi; Ngudiyono Ngudiyono; Ni Nyoman Kencanawati
Jurnal Gema Ngabdi Vol. 4 No. 1 (2022): JURNAL GEMA NGABDI
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jgn.v4i1.155

Abstract

Currently, due to the low production of eggs in Nusa Tenggara Barat Province, most eggs on the market are brought in from other region. Despite it’s huge population, representing 24,6% population of Nusa Tenggara Barat, East Lombok could supply 2% of market demand at most. The high cost of chicken coop construction is one of the main reasons of this low production. Meanwhile, Bamboo is abundant in East Lombok, it’s thrive along Tojang River Bank.  Bamboo could be use as substitute material for battery cages. Cost production of battery cages from bamboo is relatively lower than the one made from hardwood, steel, light steel, and baton. Considering accessible substitute materials at lower price are available, the cost production could be reduced. This community service is aiming for local community cognition of local bamboo as low priced material. This community service is implemented by discourse, which done by a number of survey, survey of the community service location, and discourse to give information of how to utilize local bamboo as battery cages material, size of the cages including size of individual cage, gap between column, column’s height, local bamboo as material for frame and purlin, bamboo as economy and environmental friendly material, preservation method, suitable bamboo joint model for battery cages structure. Due to COVID-19, The battery cages constructed in the community service location was evaluated through zoom meeting.
Analysis of Development Planning for Infrastructure with Land Consolidation Concept in the Mandalika Special Economic Zone (SEZ) Baiq Elny Susanti; Ngudiyono Ngudiyono; Muhajirah Muhajirah
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 7, No 1 (2022): March
Publisher : Litbang Pemas - Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v7i1.774

Abstract

Mandalika Special Economic Zone (SEZ) a national priority super tourism destination. The plan for holding an international MotoGP event requires the preparation of supporting infrastructure development. One of the pressing issues needing resolution is land conditions for permanent relocation. From a technical point of view, the land is still in the form of terracing, road access to the location is heavily damaged and some of the roads are unpaved. In addition, the relocation settlement area does not yet have public infrastructure. In this study sought to determine a strategy of funding sources for infrastructure development as well as priority factors for planning the development of infrastructure with the concept of land consolidation. The analysis in this study was carried out using Analytical Hierarchy Process (AHP) technique, showing that environmental factors had the highest weight of 0.414, followed by infrastructural with 0.295, economy with 0.157 and social factors with 0.133. For alternative factors, accessibility had a weight of 0.167, price had a weight of 0.148, quality had a weight of 0.161, location had a weight of 0.201, infrastructure had a weight of 0.176 and tradition had a weight of 0.144.
Penentuan Panjang dan Prosentase Serat Plastik Optimum Berdasarkan Hasil Uji CBR Campuran Tanah Lempung, Trass, Limbah Asetilen dan Serat Limbah Plastik Heni Pujiastuti; Ngudiyono Ngudiyono
Jurnal Teknik Sipil Vol 21 No 3 (2014)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2014.21.3.2

Abstract

Abstrak. Permasalahan limbah akhir-akhir ini menjadi permasalahan yang perlu segera diselesaikan. Salah satu solusi dalam menangani masalah limbah adalah dengan menggunakannya sebagai bahan struktur. Tujuan dari penelitian ini adalah meningkatkan nilai tambah bahan limbah dari pembuatan gas asetilen dan limbah plastik bekas kemasan air mineral dengan jenis Polypropylene (PP) sebagai bahan stabilisasi tanah lempung. Untuk menentukan panjang serat plastik optimum dan prosentase serat plastik optimum yang digunakan sebagai bahan tambah pada tanah lempung yang distabilisasi dengan 15% trass dan 5% limbah asetilen dilaksanakan pengujian di Laboratorium Geoteknik Universitas Muhammadiyah Mataram dan Laboratorium Struktur Universitas Mataram. Secara umum penelitian dilaksanakan sebagai berikut : sampel tanah lempung diambil dari Tanak Awu, Lombok Tengah, trass diambil dari Punikan, Lombok Barat, Limbah asetilen diambil dari Getap Mataram, serat plastik dipotong-potongdengan variasi panjang 5mm, 10mm, 15mm, 20mm, 25 mm, lebar 5mm dan prosentase 0% (tanpa serat), 0.5%, 1%, 1.5%, 2% dari berat keringnya, kemudian diuji CBR unsoaked. Hasil penelitian menunjukkan  panjang optimum serat plastik sebesar 20mm dan prosentase optimum serat plastik sebesar 1% dari berat keringnya mampu menghasilkan nilai kepadatan kering, nilai CBR dan nilai subgrade reaction tertinggi dari sampel uji berturut-turut sebesar 1.325 gr/cm3, 14.4% dan 397.14 MPa. Abstract. Waste problems recently become the problem that needs to be solved. One of the solution is dealing with waste to use it as a structural material. The purpose of this study is to increase the added value of waste materials from the manufacture of acetylene gas and scrap plastic waste packaging of mineral water with polypropylene (PP) type as the stabilizing agent of clay. To determine the optimum length of plastic fiber and the optimum percentage of plastic fiber which is used as an ingredient added on clay, stabilized with 15% trass and 5% of waste acetylene do testing in Geotechnical laboratory University of Muhammadiyah Mataram and Structures Laboratory, University of Mataram. Generally the research conducted as follows: clay soil samples taken from the Tanak Awu, Central Lombok, trass taken from Punikan, West Lombok, Waste acetylene taken from Getap Mataram, plastic fiber cut with the length variations of 5mm, 10mm, 15mm, 20mm, 25mm and 5mm in wide and percentage of 0% (without fiber), 0.5%, 1%, 1.5%, 2% of the dry weight, then tested CBR unsoaked. The results show the optimum length of plastic fibers is 20mm, and the optimum percentage of plastic fibers of 1% of the dry weight able produce the highest of dry density value, CBR value and value of subgrade reaction of test samples, respectively for 1.325 g/cm3, 14.4% and 397.14 MPa.
PREDIKSI DEFLEKSI BALOK KAYU TUMPUAN SEDERHANA DENGAN MODEL ADAPTIVE NEURO FUZZY INFERENCE SYSTEM (ANFIS) Novia Hilda Silviani; Buan Anshari; Ngudiyono Ngudiyono
Konstruksia Vol 12, No 1 (2020): Jurnal Konstruksia Vol 12 No. 1 Tahun 2020
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (627.876 KB) | DOI: 10.24853/jk.12.1.127-133

Abstract

Defleksi merupakan parameter penting untuk mengontrol elemen struktur balok elemen pada kondisi layan. Beberapa cara untuk menghitung defleksi diantaranya dengan metode matematis seperti luas momen, balok konjugasi, Castigliano's, prinsip kerja virtual dan metode numerik seperti metode beda hingga, elemen hingga dan lain lain. Dalam naskah ini, telah dibangun model Adaptive Neuro Fuzzy Inference System (ANFIS), untuk memprediksi defleksi balok kayu tumpuan sederhana dengan beban terdistribusi merata. Data proses pembelajaran terdiri dari input dan output (target). Input pada penelitian ini meliputi modulus elastisitas (E), lebar (b), tinggi (h), bentang (L) dan beban terdistribusi merata (W) sedangkan output adalah defleksi balok. Hasil analisis menunjukkan bahwa model ANFIS mempunyai tingkat akurasi yang baik, jika dibandingkan dengan teori dimana koefisien korelasi (R2) untuk data pengujian 0.995 dan Mean Square Error (MSE) 0.31 mm. Hal ini menunjukkan bahwa model ANFIS yang dibangun dapat diandalkan untuk memprediksi lendutan balok kayu tumpuan sederhana.
Creep Properties of Walikukun (Schouthenia ovata) Timber Beams Ali Awaludin; Ngudiyono Ngudiyono; Achmad Basuki
Civil Engineering Dimension Vol. 18 No. 2 (2016): SEPTEMBER 2016
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1123.894 KB) | DOI: 10.9744/ced.18.2.78-84

Abstract

This study presents an evaluation of creep constants of Walikukun (Schoutheniaovata) timber beams when rheological model of four solid elements, which is obtained byassembling Kelvin and Maxwell bodies in parallel configuration, was adopted. Creep behaviorobtained by this method was further discussed and compared with creep behavior developedusing phenomenological model of the previous study. Creep data of previous study was deformationmeasurement of Walikukun beams having cross-section of 15 mm by 20 mm with a clearspan of 550 mm loaded for three weeks period under two different room conditions: with andwithout Air Conditioner. Creep behavior given by both four solid elements model and phenomenological(in this case are power functions) had good agreement during the period of creepmeasurement, but they give different prediction of creep factor beyond this period. The powerfunction of phenomenological model could give a reasonable creep prediction, while for the foursolid elements model a necessary modification is required to adjust its long-term creep behavior.
SIMULASI NUMERIK KUAT LEKAT TULANGAN BAJA DAN BETON DENGAN PROGRAM ABAQUS STUDENT EDITION (SE) Ngudiyono Ngudiyono; Hariyadi Hariyadi; Yuana Pratiwi Ningsih
FROPIL (Forum Profesional Teknik Sipil) Vol 9 No 1 (2021): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (571.979 KB) | DOI: 10.33019/fropil.v9i1.2287

Abstract

Pada elemen struktur beton bertulang, kuat lekat antara tulangan baja dan beton sama pentingnya dengan kuat tekan beton. Lekatan antara tulangan baja dan beton adalah salah satu faktor penting yang mempengaruhi perilaku elemen beton bertulang terutama pada saat mengalami keretakan. Kajian-kajian secara ekperimen dan numerik dengan program komputer berbasis metode elemen hingga (FEM) telah banyak dilakukan oleh peneliti sebelumnya, namun kajian-kajian yang telah dilakukan masih menggunakan satu jenis variasi diameter, sedangkan pemodelan secara numerik dengan variasi diameter tulangan belum pernah dilakukan. Pada simulasi numerik dengan ABAQUS SE ini benda uji pengujian pull out dari hasil penelitian sebelumnya yaitu benda uji beton berbentuk silinder dengan dimensi 150 mm x 300 mm dan diameter tulangan (d) 10 mm, 13 mm, 16 mm, 19 mm dengan panjang penyaluran (l =10d) berturut turut 100 mm, 130 mm, 160 mm, 190 mm. Benda uji dimodelkan dengan 2 dimensi (2D) satu perempat lingkaran (Asymetric), interaksi tulangan baja dan beton dimodekan sebagai cohesive behavior. Hasil simulasi numerik menunjukkan bahwa semakin besar diameter tulangan baja yang digunakan, nilai kuat lekat antara tulangan baja dan beton semakin menurun, model asymetric dan cohesive behavior dapat digunakan untuk memodelkan interaksi tulangan baja dan beton, dengan tingkat keakuratan cukup baik, dimana selisih nilai kuat lekat hasil pemodelan dan eksperimen yaitu antara 0.35% - 2.231%.
Co-Authors Achmad Basuki Agung Prabowo Agustono Setiawan Ainuddin, Nurun Ali Awaludin Ali Awaludin Ali, Ahmad Muhammad Alieni, Karimannisa Ambarwati, Zaskia Putri Anang Fakhrrurahman Aprianingsih, Lia Aprilia, Uswatun Aulia, Natasya Difa Ayu Sinta Aprilia Azima, M. Fauzan Bahtiar, Gian Agisna Baiq Elny Susanti Buan Anshari Desi Widianty Didi Supriyadi Agustawijaya Eniarti, Miko Fathmah - Mahmud Fathmah Mahmud Fatmayanti, Fatmayanti Febrianti, Ni Luh Riska Fradana, Yaya Hamsy, Lalang Setiawan Haq, Habil Hariyadi Hariyadi Hariyadi, Hariyadi Hariyadi, Hariyadi Heni Pujiastuti Hudaeri, Huzrullah Husnawati, Nila I Made Merdana I Nyoman Merdana Ika Kurnia Mustika Iqbal Iqbal Ismail Hoesain Muchtaranda Jannah, Rafaatul Jauhar Fajrin, Jauhar Joedono, Joedono Khoarizmi, M. Syatho Kumala, Malya Mahendra, Yusril Iza Mahmud, Fathmah Mahmud, Fatmah Maulana, Olan Merdana, I Nyoman Merdana, INyoman Miko Eniarti Misrohatun, Misrohatun Moerad, Siti Huwayda Muhajirah Muhajirah Natasya, Rahma Dwi Ni Nyoman Kencanawati Ni Nyoman Kencanawati Ni Nyoman Kencanawati Novia Hilda Silviani Nurlaili Nurlaili Paramesty, Ristawidya Prajasa, Syakira Mala Rawiana, Shofia Rosalia, Lutfiah Ayu Sari, Adinda Kumala Sari, Mauliya Alina Setiawan, Yahya Siptiani, Eka Suprapto Siswosukarto Suryawan Murtiadi Suryawan Murtiadi, Suryawan Syahrani, Iram Tri Sulistyowati Tri Sulistyowati Wicaksana, M. Arman Adhi Yuana Pratiwi Ningsih Yuhinis, Baiq Ilil