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All Journal Jurnal Konstruksi Jurnal Teknik Informatika (JUTIF) CRANE: Civil Engineering Research Journal Jurnal Konstruksi
Eko Walujodjati
Institut Teknologi Garut
Civil Engineering, Building, Construction & Architecture Computer Science & IT

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Analisis Pengaruh Variasi Penempatan Dinding Geser Terhadap Perilaku Struktur Gedung Akibat Beban Gempa Irfan Hidayatullah; Eko Walujodjati
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2605

Abstract

Indonesia is located in the Pacific Ring of Fire, so it has many active faults that increase the risk of earthquakes, including in Tasikmalaya. To reduce damage to buildings caused by earthquakes, earthquake-resistant structural planning is required, one of which is the use of shear walls. This study aims to analyze the effect of varying shear wall placements on base shear forces, inter-story drifts, and P-Delta effects. The analysis was performed numerically using ETABS (Student Version) software with the response spectrum method based on SNI 1726:2019. Three shear wall placement models were used: model 1 according to existing conditions, model 2 in the middle of the building, and model 3 at the corner of the building. The analysis results show that model 2 provides the best response. The base shear force reached 1,422.6 kN, the inter-story drift was 7.49 mm in the X direction and 5.46 mm in the Y direction, remaining below the maximum limit. The P-Delta effect in model 2 was also the lowest and most consistent, with a maximum value of 0.0031 in the X direction and 0.0022 in the Y direction. Therefore, placing shear walls in the center of the building was most effective in improving the structure's performance against seismic loads. These findings can provide practical input for structural designers in determining the placement strategy for shear walls in multi-story buildings in earthquake-prone areas.
Pengaruh Karakteristik Lalu Lintas terhadap Kondisi Perkerasan Jalan Menggunakan IRI dan SDI Subhan Mulyana; Eko Walujodjati; Salma Fauzyah
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2871

Abstract

Population growth and increased economic activity have led to higher traffic volumes on roads, including on Jalan Limbangan–Leuwigoong in Garut Regency. This condition puts excessive pressure on flexible pavements, causing damage, reducing driving comfort, and increasing maintenance costs. This study aims to analyze the effect of vehicle volume and speed on road conditions using the International Roughness Index (IRI) and Surface Distress Index (SDI) indicators. Data were collected through traffic surveys, speed measurements, the RoadLab Pro application for IRI, and visual surveys based on Bina Marga guidelines for SDI. Simple linear regression analysis was used after classical assumption tests were not met in multiple regression. The results showed that vehicle volume and speed did not significantly affect IRI. Conversely, both had a significant effect on SDI, with a strong relationship: volume (R = 0.740; R² = 54.8%) and speed (R = 0.759; R² = 57.5%). This study confirms that traffic characteristics have a greater effect on road surface damage (SDI) than road roughness (IRI).
PENGEMBANGAN METODE RAPID VISUAL SCREENING HYBRID UNTUK EVALUASI KERENTANAN SEISMIK GEDUNG SEKOLAH Enjang Wahyudin; Eko Walujodjati
CRANE: Civil Engineering Research Journal Vol 7 No 1 (2026): CRANE - APRIL
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Ilmu Komputer, Universitas Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/crane.v7i1.19736

Abstract

Indonesia faces high seismic risks, with over 62% of school buildings located in zones with Peak Ground Acceleration (PGA) . Conventional Rapid Visual Screening (RVS) methods, such as FEMA P-154, often misclassify confined masonry structures, leading to high false-negative rates. This study develops a Hybrid RVS method that integrates visual heuristics with field-measured quantitative parameters through a systematic five-module approach (Modules A to E). A field survey was conducted using a stratified random sampling of 102 primary schools () in Garut Regency. Module D (gap-filling parameters) utilizing non-destructive testing revealed sub-standard concrete quality, averaging 15.54–17.87 MPa. The mathematical derivation linking Wall Density Index (WDI) to base shear capacity demonstrated a strong exponential correlation () with the Demand-Capacity Ratio (DCR). To scientifically validate the Module E final scoring, a Tier-3 Performance-Based Seismic Evaluation (PBSE) using Nonlinear Static (Pushover) Analysis was performed using an equivalent diagonal strut macro-model in ETABS. The pushover results confirmed the RVS Hybrid diagnosis: a high-risk sample failed the Collapse Prevention target due to an extreme soft-story mechanism, recording an inter-story drift of 2.45%H. The proposed methodology recommends a new rule of thumb for practitioners, establishing a minimum WDI threshold of 2.50% to ensure structural adequacy, thereby supporting prioritized seismic retrofitting and the issuance of Building Reliability Certificates (SLF).
Kajian Ketidaksesuaian Dimensi Elemen Struktur Pada Gedung Di Kabupaten Subang Eko Walujodjati; Hilman Januar Ramadhan
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.1694

Abstract

This research examines the dimensional non-conformity of structural elements in the Subang Regency Transportation Agency Building. The purpose of this research is to identify and analyze the factors causing dimensional non-conformity of structural elements that can affect the integrity and safety of the building. The methodology used is the analysis of planning documents and construction implementation. The results showed that there were several structural elements that experienced dimensional discrepancies, which were caused by various factors such as planning errors, inaccuracies in implementation, and the use of materials that did not meet specifications. The implications of these findings indicate the need for increased supervision and quality control during the planning and execution stages of construction to ensure the dimensional conformity of structural elements in accordance with established standards. This research is expected to contribute to efforts to improve the quality of building construction in Subang Regency as well as in other regencies or cities.
Evaluasi Struktur Kolom Kuat Balok Lemah Dengan Sistem Rangka Pemikul Momen Khusus pada Gedung Rumah Sakit Empat Lantai Akbar Dwinanda Nugraha; Eko Walujodjati
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.1737

Abstract

Indonesia is geologically located on the Ring of Fire, which means there are many active volcanoes along the Pacific plate. This is the cause of geological disasters, including earthquakes that often occur in Indonesia. According to SNI 1726:2019, there is an earthquake-resistant building concept, namely the Special Moment Bearing Frame System (SRPMK). Considering the frequent earthquakes, especially in Bandung Regency, it is very important to apply the Strong Column Weak Beam (SCWB) system to the Salman Hospital HCU (High Care Unit) building. This study aims to determine the application of the concept (SCWB) to the HCU building of Salman Hospital in an effort to anticipate damage in the event of an earthquake. The SCWB planning concept is a structural design innovation that makes the structural system flexible and allows deformation during an earthquake. This analysis starts from modeling, loading, and spectral response analysis. The calculation is carried out based on data obtained from field data with the data obtained is technical specification data and working drawings of the HCU Building of Salman Hospital. The results of the analysis show that the HCU building of RS Salman Hospital with beam dimensions of 300 x 500 and column dimensions of 450 x 450 does not meet the SCWB (Mnc ≥ 1.2 * (Mn- + Mn+) in accordance with SNI 2847: 2019, with a value of Mnc 110.313 kN.m and Mnb 179.200 kN.m and a redesign is required to meet the SCWB.
Analisis Kinerja Struktur Akibat Ketidaksesuaian Posisi Kolom Dengan Metode Fema 356 Nur Assyifa; Eko Walujodjati
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.1888

Abstract

Discrepancies between the planning (shop drawings) and actual field conditions frequently occur in construction projects, potentially affecting the structural performance of buildings. In the Bekasi Mixed Use Development project, particularly on the P1 floor of the apartment building in Bekasi City, West Java, a problem was identified involving column positions that did not match the planned markings. This study aims to evaluate the impact of column position deviations on structural performance by conducting a preliminary design using finite element analysis. Modeling was carried out under both ideal and non-ideal conditions, with column displacements of 100 mm, 200 mm, and 350 mm. The study employed quantitative and descriptive methods, using linear response dynamic analysis based on FEMA 356. Structural calculations referred to SNI 1726-2019, SNI 1727-2020, and SNI 2847-2019 to ensure compliance with building safety standards.The analysis results showed that story drift under ideal conditions and with column displacements of 100 mm and 200 mm still met the allowable limits, whereas a 350 mm column displacement in the x-direction did not meet the specified maximum limit, with delta-x equal to 0.05226 m, which is greater than the maximum delta equal to 0.0492 m. Nevertheless, the structural performance level in all scenarios remained within the Immediate Occupancy (IO) category, with drift less than 1 percent, indicating that the building experienced only minor damage and could still be used without significant repairs.The findings of this study support risk mitigation in structural design due to column position deviations. Understanding the tolerance limits for column displacement can help identify potential field issues before they escalate. A more comprehensive technical solution for column displacement tolerance could be the focus of future research to enhance construction safety and efficiency.
Evaluasi Sambungan Kolom Balok Castella Pabrik Tactical Leles Garut Aditia; Eko Walujodjati
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.1889

Abstract

Sambungan kolom balok castella merupakan salah satu elemen struktur yang penting dalam konstruksi bangunan. Sambungan ini berfungsi sebagai penghubung antara kolom dan balok, sehingga mempengaruhi kekuatan dan kestabilan struktur secara keseluruhan. Penelitian ini bertujuan untuk mengetahui perbandingan kekuatan struktur sambungan balok kolom dalam menahan gaya-gaya yang akan terjadi dengan lubang tertutup dan tidak tertutup. Lubang pada balok castella dapat ditutup untuk menambah estetika. Selain itu, dengan menutup lubang pada penampang balok juga dapat menambah kemampuan penampang balok dalam memikul beban. Selisih hasil analisis pada nilai displacement pada sambungan tertutup sebesar 1,96 mm dan nilai displacement pada sambungan terbuka sebesar 1,84 mm, sehingga sambungan tertutup lebih baik dan potensi kegagalan lebih kecil. Hasil tegangan pada Sambungan Balok Kolom Castela, tegangan prinsipal maksimal (Mpa) sambungan tidak tertutup sebesar 84,61 sedangkan sambungan tertutup sebesar 0,01 sehingga tegangan pada sambungan balok kolom castela lebih baik pada sambungan tertutup. Hasil studi kegagalan lebih banyak pada sambungan terbuka daripada sambungan tertutup.
Kajian Kolom Kuat Balok Lemah Pada Gedung Mall Pelayanan Publik Garut Eko Walujodjati; Risdi Juanda
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.1951

Abstract

The Garut Public Service Mall (MPP) building was established to provide convenience and efficiency to the public in the flexibility of doing business in Indonesia. The Garut MPP building is a reinforced concrete construction consisting of foundation structure, columns, beams, floor plates, stairs, and roof trusses. The beam-column connection determines the performance of the building structure, the principle of strong column weak beam is one of the parameters required in Earthquake resistant buildings. If structural failure is expected to occur in the beam not in the column. This research was conducted to determine the column-beam connection of the Garut Public Service Mall (MPP) Building meets the weak beam strong column principle and shear strength requirements. The research method used is quantitative method. Seeing the ultimate shear force is smaller than the nominal shear force, while the control column strong weak beam connection resultant column moment is greater than 1.2 resultant beam, column-beam connection there are 3 types, with type A (1 column 4 beams), type B (1 column 3 beams), type C (1 column 2 beams) control column-beam connection shear force type A obtained 1038. 5019 kN < 2448 kN, type B 519.251 kN < 1440 kN, type C 519.251 kN < 1440 kN, X-axis weak beam strong column control at type A connection obtained 436.4886 kN.m > 421.34 kN.m, type B 428.05 kN.m > 210.67 kN.m, type C 367.21 kN.m > 210.67 kN.m. The column-beam connection of the building has met the shear force control and weak beam strong column.
Analisis Pengaruh Penambahan Fiberglass Terhadap Karakteristik Marshall Pada Campuran Aspal AC-BC Berdasarkan Spesifikasi Bina Marga 2018 Subhan Mulyana; Eko Walujodjati; Salman Praditya
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3027

Abstract

Peningkatan kualitas perkerasan jalan menuntut inovasi material untuk mengoptimalkan kinerja campuran aspal. Penelitian ini mengkaji pengaruh penambahan Fiberglass pada campuran Asphalt Concrete-Binder Course (AC-BC), yang merupakan lapisan krusial untuk distribusi beban lalu lintas. Fiberglass dipilih karena kekuatan tariknya yang tinggi, sehingga berpotensi meningkatkan stabilitas dan memperpanjang umur layanan jalan. Metode yang digunakan adalah eksperimen laboratorium sesuai spesifikasi Bina Marga 2018 Revisi 2. Penelitian diawali dengan penentuan Kadar Aspal Optimum (KAO) dari variasi 4,5% hingga 6,5%, yang menghasilkan KAO sebesar 6,25%. Selanjutnya, pengujian dilakukan dengan KAO tersebut dan variasi penambahan Fiberglass sebesar 0%, 0,5%, 1%, 1,5%, dan 2% dari berat agregat. Hasil penelitian menunjukkan bahwa penambahan fiberglass secara signifikan memengaruhi karakteristik Marshall. Nilai stabilitas maksimum mencapai 1431 kg pada kadar Fiberglass 1,0%. Namun, pada kadar 2,0%, campuran gagal memenuhi spesifikasi untuk parameter Flow (4,38 mm) dan VIM (5,47%). Berdasarkan analisis keseluruhan, kadar penambahan Fiberglass optimum ditetapkan sebesar 1,5%, yang memberikan nilai Marshall Quotient (MQ) tertinggi sebesar 477,43 kg/mm, mengindikasikan kekakuan dan ketahanan terbaik terhadap deformasi. Selain itu, uji durabilitas pada kadar optimum menunjukkan nilai Indeks Ketahanan Sisa (IKS) sebesar 90,42%, melebihi syarat minimum 90%, yang membuktikan ketahanan campuran terhadap kerusakan akibat air. Temuan ini mengimplikasikan bahwa penggunaan Fiberglass pada kadar 1,5% berpotensi menjadi solusi efektif dalam meningkatkan durabilitas dan memperpanjang umur layanan struktur perkerasan jalan raya.
Co-Authors Ade Linda Nurliana Ade Sutedi Adhitya Surya Pratama Adi Susetyaningsih Aditia Agus Ismail Akbar Dwinanda Nugraha Andi Setiawan Anggi Ahmad Mulyadi Asti Sri Listiani Bayu Zamzam Nurjaman Cepi Wendiki Alamsyah Dandi Fahrul Akmal Danil Andriansyah Daniswara Devi Maulana Ibrahim Dina Auliani Dini Destiani Siti Fatimah Enjang Wahyudin Erik Zulkarnaen Fajar Abdul Sidiq Fikri Padhlurohman Ginsa Rustira Hadi Nurhuda Hafid Mohamad Fadilah Henda Riyana Hilman Januar Ramadhan Hilmi Aulawi Ida Farida Intan Nuriskha Rachma Irfan Hidayatullah Irpan Rifandi Mahdi Hakiki Mega Azahra Yusuf Mirza Fathir Moh Lutfi Lukman Mubaroq Muhammad Iqbal Sudano Muhammad Wildan Ubaidillah Muhammad Zaki Fahmi Nugi Abdul Chalid Nur Assyifa Nurhayati Iqbaliah Rafiqan Mochammad Ghilman Rama Pratama Rewilla Aryanti Ricky Muhammad Yany Rika Banowati Rima Siti Rohimah Rinrin Siti Ratna Purinur Ripan Maulidan Risdi Juanda Roby Ramda Nurputra Roestaman Roestaman Roestaman Roestaman Sali Marsalina Salma Fauzyah Salman Praditya Satrio Putra Rahadian Selpiana Apriani Sopyan Sauri Al Qurthubi Subhan Mulyana Sulwan Permana Tri Yogi Wibowo Widianti Sri Anjani