Article Per Year (5 Year)
p-Index From 2021 - 2026
1.686
P-Index
This Author published in this journals
All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik Sipil Jurnal Teknik Sipil Teras Jurnal Civil Engineering Dimension Dinamisia: Jurnal Pengabdian Kepada Masyarakat Journal of Engineering and Scientific Research (JESR) Journal of the Civil Engineering Forum Makara Journal of Technology Journal of Civil Engineering and Vocational Education Journal of Engineering and Technological Sciences
Ali Awaludin
Unknown Affiliation
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

Published : 18 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 18 Documents
Search

 1   2 
Pengembangan Irigasi Mikro Tirta Wanagama Abadi, Kalurahan Mulusan, Kabupaten Gunung Kidul Endita Prima Ari Pratiwi*; Neil Andika; Tantri Nastiti Handayani; Ni Nyoman Nepi Marleni; Ali Awaludin; Fatchan Nurrochmad
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 5 (2023): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v7i5.15452

Abstract

Kalurahan Mulusan berada di Kepanewon Paliyan, Kabupaten Gunung Kidul. Mata pencaharian utama penduduk Kalurahan Mulusan adalah pertanian sawah tadah hujan. Pada musim kemarau, air yang tersedia sangat terbatas sehingga banyak lahan yang menganggur. Kegiatan pengabdian kepada masyarakat ini bertujuan mengembangkan irigasi mikro di Kalurahan Mulusan yaitu dengan meningkatkan ketersediaan air dan memperluas lahan yang dapat diairi khususnya pada musim kemarau. Kegiatan dilaksanakan pada bulan Juli sampai November 2021. Kelompok tani muda Tirta Wanagama Abadi, Kalurahan Mulusan, menjadi sasaran dan sekaligus pelaku kunci dari kegiatan ini. Kegiatan pengabdian kepada masyarakat ini juga mendapat dukungan finansial dari mitra industri teknik sipil. Hasil kegiatan ini adalah sebuah sumur bor baru, penambahan tangki penampungan air, perluasan jaringan irigasi pipa, serta hasil uji kualitas air. Kegiatan pengembangan irigasi mikro ini merupakan contoh nyata kolaborasi perguruan tinggi, masyarakat, dan industri yang diharapkan dapat meningkatkan produksi pertanian dan kesejahteraan masyarakat Kalurahan Mulusan.
A Cyclic Behavior of Multidirectional Box-Shaped Shearing Damper: Experimental Study Setiawan, Angga Fajar; Awaludin, Ali; Satyarno, Iman; Md Nor, Noorsuhada; Haroki, Yusuf; Darmawan, M. Fauzi; Purnomo, Sidiq; Sumartono, Ignatius Harry
Journal of the Civil Engineering Forum Vol. 11 No. 2 (May 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.14550

Abstract

This paper discusses an experimental study investigating the behavior of the multidirectional box-shaped shearing damper (MBSD) proposed for a bridge structures application. The MBSD consisted of a box-shaped steel plate hot coil (SPHC) material with an effective dimension of 100 x100 mm2 designed to dissipate earthquake excitation energy under combined resultant from longitudinal and transversal directions. The specimens varied with two different web slendernesses, i.e., 58.8 and 27.0. Furthermore, to investigate the different load direction effects, four different loading angles with respect to one of the web planes, i.e., 0°, 15°, 30°, and 45° to be implemented. The specimens were subjected to cyclic loading according to AISC/ANSI 341-22. In the experiment, the shear yield strength, ultimate state behavior, and energy dissipation achievement were evaluated. The result was that MBSD could achieve shear strength and sufficient energy dissipation under different angles of loading direction ranging from yielding to ultimate deformation state. The yielding and ultimate characteristics of MBSD were coincident with the ordinary shear panel damper. A stockier web resulted in a more stable stiffness after the yield point and less buckling of the web but also a slightly earlier strength degradation due to the earlier fracture damage to the welded joint. Finally, the MBSD device had visibility for application on bridge structure as a seismic device by considering appropriate strength and deformation capacity compatibility adjustment with the ultimate displacement limit of 0.11 rad drift angle. In addition, the recommendation for using a better elongation capacity steel material and less welding assembly will improve the behavior and seismic performance of the MBSD.
Efektifitas Metode SSI Covariance dalam Sistem Pemantauan Kesehatan Struktur (SHMS) Jembatan Box Girder Bentang 40 Meter. Akbar, Muhammad; Aminullah, Akhmad; Awaludin, Ali
Teras Jurnal : Jurnal Teknik Sipil Vol. 15 No. 2 (2025): Teras Jurnal (September)
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v15i2.1293

Abstract

Abstrak   Pemantauan frekuensi alami pada jembatan box girder bentang 40 meter merupakan langkah penting dalam memastikan stabilitas dan keselamatan struktur selama kondisi layanan aktual. Penelitian ini menerapkan metode Stochastic Subspace Identification (SSI) covariance untuk mengidentifikasi karakteristik dinamis struktur berdasarkan respons getaran akibat beban operasional kendaraan yang melintas. Data diolah tanpa eksitasi buatan, sehingga mencerminkan perilaku dinamis jembatan secara realistis. Hasil analisis menunjukkan frekuensi alami yang stabil dan konsisten pada rentang 3,88–3,89 Hz, baik dari masing-masing sensor maupun analisis gabungan. Temuan ini konsisten dengan hasil pemodelan numerik, yang memperkuat validitas metode SSI covariance sebagai pendekatan non invasif dalam pemantauan kesehatan struktur. Pendekatan ini menegaskan frekuensi alami sebagai indikator utama dalam mengevaluasi kondisi struktural jembatan secara akurat dan andal di bawah beban operasional nyata.   Kata kunci: SHMS, OMA, SSI covariance, Frekuensi Alami.   Abstract   Monitoring the natural frequency of a 40-meter span box girder bridge is essential to ensure the structural stability and safety under actual service conditions. This study applies the Stochastic Subspace Identification (SSI) covariance method to identify the dynamic characteristics of the structure based on vibration responses induced by operational vehicle loads. The data were processed without artificial excitation, thereby reflecting the realistic dynamic behavior of the bridge during operation. The analysis results indicate a stable and consistent natural frequency in the range of 3.88–3.89 Hz, observed across individual sensor measurements as well as in combined analysis. These findings are in good agreement with the numerical modeling results, strengthening the validity of the SSI covariance method as a non invasive approach in structural health monitoring. This approach emphasizes the role of natural frequency as a key indicator for accurate and reliable evaluation of bridge structural conditions under real operational loads.   Keywords: SHSM, OMA, SSI covariance, Natural Frequency
The Axial Compression Capacity of Finger-Jointed Laminated Board Made from Rubber Wood Species Awaludin, Ali; Sulhan, Muhammad Afif; Effendi, Mahmud Kori; Hassan, Rohana
Civil Engineering Dimension Vol. 27 No. 2 (2025): SEPTEMBER 2025
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.27.2.113-122

Abstract

The utilisation of Rubberwood was an effort to provide an alternative to low-cost housing in Indonesia. This study investigated the use of Rubberwood Finger-Jointed Laminated Board (FJLB) under compression loading parallel to the grain. The investigation included laboratory experiments and numerical analysis. The experiments were conducted using two specimens of FJLB members, each with a length of 2000 mm and a cross-sectional dimension of 100 mm × 100 mm². Finite element analysis (FEA) was employed to predict the axial capacity, considering non-linearity, contact boundary conditions, and buckling analysis of the material. The study found an average axial capacity of 150.9 kN for the two specimens, which was 3.2% higher than the FEA and 5.4% higher compared to the Euler formula. Laboratory measurements revealed that initially, the stress distribution in the cross-section was uniform, then suddenly changed to a combination of tension and compression during the final loading stage.
Analysis of Reinforced Concrete Pipe Strain Due to Jacking Force Case Study: Sudetan Ciliwung River Project to the East Flood Canal Ayun, Zaimah Qurrata; Awaludin, Ali; Siswokarto, Suprapto; Ismanti, Sito
CIVED Vol. 11 No. 2 (2024): June 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i2.594

Abstract

Pipe Jacking is an innovation in trenchless technology that has been utilized in various sectors including municipal wastewater systems, oil and gas transportation, and hydraulic engineering. One of the critical aspects to ensure the success and safety of the pipe jacking process is strain monitoring. This study discussed the strain characteristics of reinforced concrete pipe structures during pipe jacking. The analysis was conducted using a numerical approach, which compared to field monitoring. Field strain monitoring was performed by strategically placing strain gauges along the pipe during the jacking operation, resulting in real-time data on deformation and pressure values. When the strain was monitored, the numerical test was conducted simultaneously using finite element analysis of Rocscience 3D.  Those activities were done to consider the interaction between the reinforced concrete pipe and the surrounding soil. The strain analysis results indicated that the pipe responded during the pipe jacking process. The values of strain were various, depending on jacking force, condition of excavated soil layers, and distance between twin tunnels. The maximum stress occurred at the beginning of jacking process, when the pipe infiltrated into the soil with stress value of 512 kPa.
Thermomechanical Analysis of Cement Hydration Effects in Multi-layered Pier Head Concrete: Finite Element Approach Ahmad, Mohammad Ismail Ramadan; Irawati, Inggar Septhia; Awaludin, Ali; Siswosukarto, Suprapto
Journal of Engineering and Technological Sciences Vol. 56 No. 5 (2024)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2024.56.5.7

Abstract

Mass concrete plays a crucial role in infrastructure development, yet its complex thermo-mechanical behavior poses challenges, especially in the construction of multi-layered structures like pier heads. This study investigated the thermo-mechanical behavior of a pier head during its concreting process in three stages, including the influence of temperature differences that impact the thermomechanical balance of the concrete. By utilizing the ABAQUS software, thermo-mechanical analysis was conducted to simulate temperature fluctuations during cement hydration. The model integrates thermal analysis to simulate temperature fluctuations during cement hydration and stress distribution during construction, validated through mesh convergence studies and field data comparison. The mechanical analysis considered concrete properties, temperature variations, and construction phase. Nonlinear material behavior and contact interactions between layers were incorporated to obtain a realistic simulation. The results indicated that a multi-layer system can balance temperatures, reducing thermal stress-induced cracking risks. Furthermore, specific test points within the pier head were assessed, revealing potential internal cracks by comparing thermal stresses to the concrete’s tensile strength. This research offers insight into pier head conditions during construction, highlighting critical stress zones, crack prediction, and construction sequence efficacy.
Analysis of Axial Behavior in Cold-Formed Steel-Plywood Composite Walls Saputra, Muhamad Dandy Harjunaseta Hadi; Siswosukarto, Suprapto; Awaludin, Ali
Journal of Engineering and Scientific Research Vol. 6 No. 2 (2024)
Publisher : Faculty of Engineering, Universitas Lampung Jl. Soemantri Brojonegoro No.1 Bandar Lampung, Indonesia 35141

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jesr.v6i2.197

Abstract

The use of bricks as a wall material has significant drawbacks, including high weight and brittleness, making them vulnerable to damage, particularly under lateral loads like earthquakes. This study focuses on evaluating the axial performance of Cold-Formed Steel (CFS)-Plywood composite walls as an alternative to traditional brick walls. The study investigates the effects of bracing on axial compressive strength through laboratory testing of two composite wall specimens: one with bracing and one without. The results show that bracing significantly improves axial load capacity, with the braced specimen sustaining a maximum load of 69.666 kN, while the unbraced specimen withstood 64.413 kN. These findings highlight the potential of CFS-Plywood composite walls to serve as a lightweight, structurally sound alternative to brick walls, especially in multistory buildings subjected to axial loading.
The Behavior of Glued-in Threaded Steel Rod Joints in Bangkirai Timber Beams under Flexural Loading: Experimental and Numerical Investigations Awaludin, Ali; Akbar, Miqdad Khosyi
Journal of Engineering and Technological Sciences Vol. 58 No. 1 (2026): February 2026 (In Progress)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2026.58.1.5

Abstract

This study investigated flexural performance of Bangkirai timber beams jointed with glued-in threaded steel rods using epoxy-resin adhesive through experimental test and numerical analysis. Six beam specimens were tested under four-point bending with varying rod diameters, anchorage lengths, and beam widths: GIR B.65.16.17 (65 mm width, 16 mm rod, 170 mm anchorage), GIR B.65.12.25 (65 mm width, 12 mm rod, 250 mm anchorage), and GIR B.110.12.25 (110 mm width, 12 mm rod, 250 mm anchorage). The results showed that anchorage length significantly influenced moment capacity and stiffness of the beams. The highest average moment capacity was in GIR B.110.12.25 at 20.08 kNm due to its larger cross-section, while GIR B.65.12.25 showed a 58% higher moment capacity (16.57 kNm) than GIR B.65.16.17 (10.48 kNm). Elastic stiffness values were 538.60 kNm2, 809.44 kNm2, and 948.01 kNm2 in GIR B.65.16.17, GIR B.65.12.25, and GIR B.110.12.25, respectively, with longer anchorage lengths enhancing stiffness. The primary failure mechanism was epoxy-resin bond failure, leading to beam separation, while pull-out failure of steel rods was observed in some cases, particularly in specimens with shorter anchorage lengths. A 3-D nonlinear FEA was developed to validate experimental results. Differences between experimental and FEA results were within acceptable ranges, including 0.6-14.6% for elastic stiffness and 8.1-13.7% for moment capacity. Load-displacement curves obtained from the FEA correlated well with the experimental results, although the model slightly overestimated moment capacity due to the assumption of perfect bonding. These results provided insights for optimizing glued-in rod timber joints in structural applications.
Co-Authors Achmad Basuki Ahmad, Mohammad Ismail Ramadan Akbar, Miqdad Khosyi Aminullah, Akhmad Andreas Triwiyono Arfiati FArdhani, Arfiati Ay Lie Han Ayun, Zaimah Qurrata Bambang Suhendro Bambang Supriyadi Darmawan, M. Fauzi Endita Prima Ari Pratiwi* Fatchan Nurrochmad Haroki, Yusuf Hassan, Rohana I Gusti Lanang Bagus Eratodi Iman Satyarno Irawati, Inggar Septhia Ismanti, Sito Mahmud Kori Effendi Making, Maria Yasinta Menge Md Nor, Noorsuhada Muhammad Akbar Neil Andika Ni Nyoman Nepi Marleni Niken Palaeowati Purnomo, Sidiq Saputra, Muhamad Dandy Harjunaseta Hadi Setiawan, Angga Fajar Siswokarto, Suprapto Sulhan, Muhammad Afif Sumartono, Ignatius Harry Suprapto Siswosukarto Tantisaputri, Intan Archita Tantri Nastiti Handayani TATI NURHAYATI Yudhi Arnandha