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All Journal CIVED (Journal of Civil Engineering and Vocational Education) Jurnal Momentum JURNAL TEKNIK SIPIL ITP ISSN 2354-8452 Proceedings ACES (Annual Civil Engineering Seminar) Jurnal Teknik Sipil BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil SIKLUS: Jurnal Teknik Sipil Jurnal Rekayasa Sipil Journal of Infrastructure and Civil Engineering Jurnal Teknik Sipil Institut Teknologi Padang Jurnal Bangunan: Konstruksi & Desain Journal of Civil Engineering and Vocational Education
Jafril Tanjung, Jafril
Universitas Andalas
Civil Engineering, Building, Construction & Architecture Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Transportation

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Seismic Performance Evaluation of Reinforced Concrete Building in Palu City Nugroho, Fajar; Tanjung, Jafril; Maidiawati, Maidiawati; Kurniawan, Ruddy
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 12 No 2 (2024): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (July 2024)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v12i2.9570

Abstract

The earthquake accompanied by a tsunami that occurred in Palu City in 2018 resulted in damage, especially reinforced concrete buildings, one of which was the FISIP Dean Building, Tadulako University. This study aims to evaluate the seismic performance of the building using SeismoStruct software. This software is able to predict the behaviour of large displacements of space frames under static or dynamic loading by considering geometric nonlinearity and material inelasticity. Building modelling is made based on Detail Engineering Design drawings. The results of the analysis in the form of a capacity curve show that the building's performance is at the life safety level, which means that structural components are damaged so that the building's strength is reduced. There are two types of building collapse mechanisms that occur, namely yielding in the reinforcement (yield) and collapse in the concrete cover (crush-unconfined). Collapse occurred in the column where it should have occurred in the beam.
Bahasa Inggris Medriosa, Hamdeni; Tanjung, Jafril; Maidiawati; Haris HG, Sabril
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 13 No 1 (2025): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (January 2025)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v13i1.10166

Abstract

The width of diagonal strut is not commonly known for having significant benefit to the lateral strength of brick walls. However, some researchers have resumed that strut width has a significant impact on lateral strength. Both experimental and analysis studies indicates that the width of the diagonal strut indeed has a significant impact on the lateral strength of brick walls. By employing the developed analytical model, it became evident that the width of the strut benefited the strength of the brick wall. The purpose of this research is to determine the effect of diagonal strut width on the lateral strength of brick walls. The methodology employed to ascertain the lateral strength of brick walls was by conducting a comparative analysis of the analytical and numerical outcomes from varied strut widths at the mid-span openings to the various form of openings. The analytical approach was conducted with the use of diagonal struts, while the numerical modeling was done with the Atena 2D software. The analytical results obtained were 65.15 kN for diagonal strut 1 and 73.75 kN for diagonal strut 2. The numerical results obtained were 64.7 kN for diagonal strut 1 and 75.7 kN for diagonal strut 2. The findings derived from this investigation substantiate the pivotal influence of strut width on the lateral strength of brick walls.
Pengaruh Luas Lubang Bukaan Dinding Terhadap Energi Disipasi Portal Beton Bertulang Marsa, Raihan Jetson; Sunaryati, Jati; Tanjung, Jafril
Jurnal Bangunan, Konstruksi & Desain Vol 2 No 4 (2024): Desember 2024
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbkd.2.4.214-222.2024

Abstract

Brick walls in portal structures are often considered non-structural components or parts of the architecture; consequently, the influence of the brick walls' strength and stiffness is often not considered in building planning. In reality, brick walls have a certain value of strength and stiffness in resisting lateral loads. In reinforced concrete buildings, the portal structure is filled with solid brick walls and brick walls with openings (holes) that serve as spaces for installing windows, doors, ventilation, and so on. This study aims to analyze the influence of the opening area on the lateral performance of reinforced concrete portals under cyclic loading. This study was conducted by comparing six specimen models, namely reinforced concrete portal structures with full walls (F-O-0), reinforced concrete portal structures with an opening area in the wall of 15% (F-O-15), 25% (F-O-25), 40% (F-O-40), 55% (F-O-55), and reinforced concrete portal structures without walls. (F-O-100). The research was conducted numerically using the ATENA V5.9.0 software (Demo Version). The outputs obtained with the help of the ATENA software that will be compared are the load-displacement hysteresis curves and the effect of the opening area on the wall. From the analysis results, it can be concluded that there is a decrease in energy dissipation as the opening area on the infill wall increases.
Potensi Metode Jaringan Saraf Tiruan Dalam Memprediksi Respons Seismik Gedung Bertingkat Di Indonesia Harnedi, Raihan Arditama; Tanjung, Jafril; Sunaryati, Jati
Journal of Infrastructure and Civil Engineering Vol. 3 No. 1 (2023)
Publisher : Program Studi Teknik Sipil Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/jice.v3i1.37

Abstract

Setiap struktur yang menerima beban gempa akan memunculkan suatu perilaku atau respons khusus disebut respons seismik. Respons ini umumnya diidentifikasi dengan bantuan software elemen hingga, namun seiring dengan berkembangnya teknologi, para peneliti telah mengembangkan sebuah metode prediksi yang berdasarkan konsep kecerdasan buatan yaitu metode Jaringan Saraf Tiruan (JST). Penelitian ini berfokus pada penentuan akurasi metode JST dalam memprediksi nilai respons seismik gedung bertingkat pada beberapa lokasi di Indonesia. Model struktur yang digunakan adalah gedung bertingkat beton bertulang dengan 15 lantai dan respons seismik model tersebut dianalisis pada 3 jenis tanah di 34 ibukota provisi di seluruh Indonesia. Data hasil analisis kemudian digunakan untuk pengolahan data pada model JST menggunakan software MATLAB. Model JST yang digunakan pada penelitian ini terdiri dari 3 lapisan yaitu input layer, hidden (15 neuron) dan output layer. Lapisan input layer terdiri dari data geometri gedung, kondisi tanah dan parameter gempa lokasi tinjauan sedangkan output layer terdiri dari nilai perpindahan, kecepatan dan percepatan pusat lantai. Setelah 295 kali iterasi, model JST dapat memprediksi nilai respons seismik gedung pada 34 lokasi tinjauan dengan nilai rata – rata keseluruhan mean squared error (MSE) sebesar 1,95x10-5 dan nilai koefisien determinasi (R2) keseluruhan sebesar 99,96%. Hasil parameter akurasi ini (MSE dan R2) menunjukkan bahwa model JST telah berhasil memprediksi nilai respons seismik gedung bertingkat dengan akurat dan dapat dikembangkan pada kasus – kasus struktur tahan gempa lainnya.
Pengaruh Dinding Bata terhadap Kapasitas Seismik Gedung Beton Bertulang Berlantai Banyak Leilany, Lili; Tanjung, Jafril; Sunaryati, Jati
CIVED Vol. 9 No. 3 (2022): September 2022
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v9i3.352112

Abstract

Studi ini menjelaskan tentang pengaruh dinding bata terhadap kapasitas seismik gedung beton bertulang. Di kota Padang, dinding bata digunakan sebagai dinding non struktural pada sebagian besar gedung beton bertulang. Dalam hal ini, kontribusi dinding bata terhadap kinerja struktur gedung bertulang dianalisis. Bangunan beton bertulang sepuluh lantai dipilih sebagai model dalam penelitian ini yang bertujuan untuk mengetahui kapasitas seismik dan keamanan gedung ditinjau dari perpindahan, drift rasio, dan gaya geser dasar. Untuk mengevaluasi kapasitas seismik gedung beton bertulang digunakan 2 (dua) model. Bangunan dianalisis dan dibandingkan antara bangunan beton bertulang dengan dan tanpa dinding bata. Pemodelan dianalisa dengan menggunakan Push Over Analysis dengan menggunakan software yang disebut Struktural Earthquake Response Analysis 3D (STERA 3D), Analisis Pushover dilakukan dengan menggunakan distribusi beban UBC. Hasil analisis menunjukkan bahwa dinding dalam rangka beton bertulang dapat meningkatkan gaya geser dasar sekitar 38% dan 25% pada arah X dan Y struktur dibandingkan dengan rangka beton bertulang tanpa dinding bata, dinding bata juga dapat meningkatkan titik kinerja dalam arah X dan Y struktur masing-masing sebesar 45% dan 32%. Dinding bata dapat mengurangi kerusakan pada komponen struktural. Dapat disimpulkan bahwa penggunaan dinding bata dapat memberikan peningkatan terhadap kapasitas seismik bangunan beton bertulang secara signifikan.
Identifikasi Penyebab Kerusakan Konstruksi Bangunan Beton Bertulang Pasca Bencana Gempa Bumi Tanjung, Jafril; Putri, Nilda Tri
Jurnal Bangunan, Konstruksi & Desain Vol 1 No 2 (2023): Agustus 2023
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbkd.1.2.72-78.2023

Abstract

Reinforced concrete is a construction that is vulnerable to damage during an earthquake if not done properly. This article focuses on the results of field observations after the earthquake disaster in Lombok and Palu in 2018, with the aim of identifying the type of damage that occurred in reinforced concrete buildings. This identification is important to understand the potential causes of damage and/or collapse in reinforced concrete buildings. The results of field observations show that low concrete quality and lack of standard reinforcement detailing processes are the main factors contributing to the large number of buildings experiencing damage and/or collapse during the earthquake. Poor quality concrete, such as a mismatch in the mix or a lack of strength, can make a structure brittle and unable to withstand excessive earthquake forces. Apart from that, lack of attention to the reinforcement detailing process is also a cause of significant damage. Non-standard reinforcement detailing includes a lack of the required amount of reinforcement in the structure, installation of shear reinforcement that does not meet the requirements, and a lack of shear reinforcement at beam and column connections. Lack of reinforcement in structural connections reduces the strength and stiffness of the structural system, thereby increasing the risk of collapse during an earthquake. The location and method of installing brick walls is also one of the factors causing building damage. Through analysis of the results of these observations, it can be concluded that good quality concrete and the process of detailing reinforcement and brick walls according to standards are very important to reduce damage and increase the resistance of reinforced concrete structures to earthquakes. Proper implementation of structural design specifications and careful monitoring during construction can help reduce the risk of damage caused by earthquakes.
Fragility Assesment of Mid-Rise RC Building using HAZUS Method in High Seismic Zone Zuher, M. Hasbi; Nasution, Ade Prayoga; Sidiq, Zairah Nabila; Masrilayanti, Masrilayanti; Tanjung, Jafril
Jurnal Bangunan, Konstruksi & Desain Vol 1 No 2 (2023): Agustus 2023
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbkd.1.2.79-89.2023

Abstract

Earthquake is a pounding that caused by a released energy of ground motion. The earthquake in high seismic zone caused damages and loss of live. Thus, there was important to evaluate the seismic vulnerability of structure before an earthquake was occurred to prevent the damage and safe of lives. The seismic vulnerability can be described by using fragility curves. These fragility curves was developed by HAZUS method that present the probability of the structure damage due to various ground shaking or lateral displacement of the building. This paper addresses the performance based design method to consider the building capacity due to Padang ground motion. Therefore, the damage probability was calculated by using the lognormal distribution with the probabilistic parameter was acquired by HAZUS engineering building module. Then, the fragility assesment of the building was compared in transverse and longitudinal direction. The result reveals that the building is vulnerable to collapse due to Padang ground motion.
Co-Authors ', Maidiawati Abdul Hakam Abrar, Aidil Elfania Bastian FAJAR NUGROHO Febrin Anas Ismail Hamdeni Medriosa Hamdeni Medriosa Hamdeni Medriosa Haris HG, Sabril Harnedi, Raihan Arditama Harry Syafriandi Eka Putra Januarahmad Erva, Januarahmad Jati Sunaryati Leilany, Lili Lili Leilany Maidiawati Marsa, Raihan Jetson Masrilayanti, Masrilayanti Mazni, Deni Irda Medriosa, Hamdeni Miko Yolisa Putra Miko Yolisa Putra Nasution, Ade Prayoga Nilda Tri Putri Oscar Fithrah Nur Raihan Arditama Harnedi Rita Anggraini Riza Aryanti Ruddy Kurniawan Sidiq, Zairah Nabila Thamrin, Rendy Ulya Saputra Yossyafra Yossyafra Zuher, M. Hasbi