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Jurnal Teknik Sipil
Published by Universitas Atma Jaya Yogyakarta
ISSN : 1411660X     EISSN : 25492918     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Transportation
Jurnal Teknik Sipil adalah wadah informasi bidang Teknik Sipil berupa hasil penelitian, studi kepustakaan maupun tulisan ilmiah terkait. Terbit pertama kali Oktober tahun 2000. Frekuensi terbit dua kali setahun pada bulan April dan Oktober. (ISSN 1411-660X).
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 8 Documents
 1 
Search results for , issue "Vol. 18 No. 4 (2026)" : 8 Documents clear
RISK-BASED ROAD RESOURCE ALLOCATION USING SDI AND ADT DATA Sulistyowati; Diah Aryati Puji Lestari; Son Haji; Sutik
Jurnal Teknik Sipil Vol. 18 No. 4 (2026)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jts.v18i4.13075

Abstract

Safety is the most important aspect of a road to consider. Road safety means the road is in good condition for a vehicle to pass on. Maintenance and reconstruction are the two means that should be performed to preserve road performance and safety. Bina Marga Semarang, as the road administrator, uses Surface Distress Index (SDI) data to determine the appropriate maintenance/reconstruction (M/R) work on a road within the road network in Semarang. The SDI method gives a score based on each road segment condition; the lower the score, the better the road condition, which means the less road damage. This research aimed to allocate resources based on the risk inherent in each road section. SDI in 2024 and Average Daily Traffic (ADT) data in 2023 were used to quantify the risk magnitude of each road section in the Kecamatan Tugu, Semarang road network. The maintenance/reconstruction cost of each segment was also calculated to determine the road M/R cost. Road segments were then ranked based on the risk magnitude and M/R cost. The result showed that JL. Stasiun Jrakah was the riskiest road, but held the 7th position in M/R cost.
KINERJA REOLOGI ASPAL MODIFIKASI BELERANG BERDASARKAN PENGUJIAN STANDAR AASHTO Susanto, Hery Awan; Saputro, Dani Nugroho; Pangestika, Safety Husna; Pamudji, Gandjar; Bhagaskara, Miftah Gita
Jurnal Teknik Sipil Vol. 18 No. 4 (2026)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jts.v18i4.13166

Abstract

Peningkatan permintaan infrastruktur jalan mendorong inovasi aspal modifikasi belerang (4-6%) untuk meningkatkan ketahanan perkerasan. Berdasarkan uji propertis AASHTO/SNI pada aspal PEN 60/70, kadar 4% belerang meningkatkan densitas (+7,7%) tanpa segregasi, sedangkan kadar 5-6% meningkatkan fleksibilitas (daktilitas +12,3%) dan kelunakan (penetrasi +17,7%). Namun, kadar >4% menurunkan titik nyala (-39,8%) dan viskositas (-30,01%), meningkatkan risiko kebakaran dan rutting. Kadar 4-5% optimal untuk menyeimbangkan performa reologi dan risiko, direkomendasikan untuk aplikasi di iklim dingin dengan pengawasan suhu ketat dan uji emisi gas (H₂S/SO₂). Penelitian lanjutan dapat mengkombinasikan belerang dengan polimer seperti crumb rubber untuk mitigasi kelemahan. Kata kunci: Aspal modifikasi, Belerang, Reologi, AASHTO, Uji Propertis
PENGARUH PASIR PARANGTRITIS DENGAN BIOCHAR SEKAM PADI TERHADAP STABILITAS DAN DURABILITAS CAMPURAN AC-WC Kusumaningtyas, Anggraini Dewi; Riyanto, Agus
Jurnal Teknik Sipil Vol. 18 No. 4 (2026)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jts.v18i4.13330

Abstract

This study investigates the effect of using Parangtritis beach sand as fine aggregate and rice husk biochar as an additive on the stability and durability of Asphalt Concrete Wearing Course (AC-WC) mixtures. Parangtritis beach sand has abundant availability; however, its fine, rounded grains with high silica content result in low adhesion to asphalt. To improve performance, rice husk biochar was utilized as an additive. The research determined the Optimum Asphalt Content (OAC) using the Narrow Range method with asphalt variations of 4%, 5%, 6%, 7%, and 8%, and beach sand variations of 15%, 30%, and 45% by the weight of fine aggregate to obtain the Optimum Beach Sand Content (OBSC). The Marshall Stability Test was conducted with immersion periods of 0, 24, 72, 168, and 336 hours to evaluate stability and durability parameters, including the First Durability Index (FDI), Second Durability Index (SDI), and Retained Strength Index (RSI). The results showed that the mixture containing Parangtritis beach sand and rice husk biochar met the 2018 Bina Marga specifications, with an OAC of 6% and an OBSC of 24.25%. The addition of 4% biochar produced the best performance, achieving a stability of 1,492.59 kg and RSI values of 91.2% (24 hours) and 64.3% (336 hours), indicating a significant improvement in the mixture’s stability and durability.
A STRENGTH-NORMALISED FRAMEWORK FOR COMPARING COBBLESTONE AND ASPHALT CONCRETE WEARING COURSES IN LOW-SPEED URBAN ROADS Kamala, Derick; Mlodi, Lodgar
Jurnal Teknik Sipil Vol. 18 No. 4 (2026)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jts.v18i4.14337

Abstract

Low-speed urban road sections such as intersections, bus bays, parking areas, and braking zones are subjected to high contact stresses, frequent braking, and moisture exposure, conditions that often lead to rutting, deformation, and strength degradation in conventional asphalt wearing courses. Although cobblestone pavements have historically demonstrated durable performance in similar environments, their application remains largely based on empirical practice rather than systematic mechanical comparison with asphalt materials. This study proposes a strength-normalized performance framework to compare the mechanical suitability of cobblestone and dense-graded asphalt concrete wearing courses for low-speed urban applications. Cobblestone performance was characterized using aggregate crushing, impact, and abrasion tests representing compressive resistance, impact toughness, and abrasion durability. Asphalt mixture performance was evaluated using Marshall stability, indirect tensile strength, and unconfined compressive strength to represent shear, tensile, and compressive resistance. Test results were normalized into dimensionless indicators and integrated into composite strength indices reflecting dominant pavement stress modes. Results show that cobblestone achieved a strength index of 1.317, compared with 1.102 for asphalt under dry conditions, indicating approximately 20% higher resistance to compression- and wear-dominated loading. Under soaked conditions, the cobblestone index decreased to 1.152, approaching asphalt performance
EFEKTIVITAS TUMPUAN ISOLATOR KARET UNTUK MENGURANGI AKSELERASI SEMU GEMPA BUMI Budiadi, Andri
Jurnal Teknik Sipil Vol. 18 No. 4 (2026)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jts.v18i4.14371

Abstract

This research paper is to study the effect of using Rubber Bearing as Base Isolator. Two analyses are performed in this study. The first analysis is using a whole building structure to be calculated its period and to be estimated its pseudo acceleration for both fixed and isolated bases. The second analysis, period calculation and estimation of pseudo acceleration is using a single column of the building structure. Method of analysis is using basic vibration formulas. The calculated parameters are stiffness of the structure, damped frequency, undamped natural frequency and period of vibration.  Using response spectra of the building, pseudo acceleration is estimated by plotting vibration period for both fixed and isolated supports. Trial-and-Error processes are needed to find where along response spectra three lines types two pairs of the coordinate of period and pseudo acceleration reveal the increasing value of period and decreasing value of acceleration.   Comparing the pseudo acceleration of fixed and isolated base, for the first analysis, the pseudo acceleration decreases up to 53,85 %. Pseudo acceleration decreases by 51,79 % for the second analysis. The decreasing value of earthquake acceleration is only possible when both fixed and isolated base structural periods fall in the Curved down line in the response spectrum diagram.
PERFORMANCE EVALUATION OF SIGNALIZED INTERSECTION AT AREA D USING VISSIM MICROSIMULATION AND HCM 2010 Kullaya, Damian; Gayatri Kusumawardhani , Rani; Katimba, Godfrey
Jurnal Teknik Sipil Vol. 18 No. 4 (2026)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jts.v18i4.14571

Abstract

Traffic performance in a road network is significantly influenced by traffic flow at intersections. Area D, a signalized intersection located in Dodoma City,Tanzania experiences traffic congestion during peak hours, causing excessive vehicle delays when signals are in operation. The main objective of the study is to evaluate traffic performance of the existing intersection using Highway Capacity Manual (HCM 2010) and PTV VISSIM simulation during peak periods. Vehicle flow was measured during morning and evening peak periods, specifically at 06:00 to 10:00 AM and from 04:00 to 06:00 PM. The traffic composition during the morning peak consisted of light vehicles (46.95%), motorcycles (33.78%), and heavy vehicles (19.27%), while during the evening peak it consisted of light vehicles (46.46%), motorcycles (36.06%), and heavy vehicles (17.48%). Analysis using HCM 2010 indicated that the average delay was 55.16 pcu/sec during the morning peak and 115.14 pcu/sec during the evening peak. The average queue lengths were 131.2 m and 327.4 m, with Level of Service E and F during morning and evening peak hours, respectively. PTV VISSIM Version 11 results showed higher delays of 99.67 pcu/sec and 149.14 pcu/sec. Three improvement scenarios were evaluated using a micro-simulation approach. The third scenario, combining traffic signal optimization and geometric improvements, was identified as the most effective. This scenario reduced delays to 21.27 pcu/sec and 29.86 pcu/sec, decreased queue lengths to 29.86 m and 89.45 m, and improved level of service to B and C during morning and evening peak hours.
BIM 5D QUANTITY TAKE-OFF: DEVIATION AND ERROR SOURCE ANALYSIS IN REINFORCED CONCRETE Lautan Wijaya Nusantara, Johan; Cahyono, Guntur Tri; Wusqo, Urwatul; Faveryan, Irkhas Bayu; Nisa, Mitsaq Addina; Tiyani, Lilis; Maryani, Desi
Jurnal Teknik Sipil Vol. 18 No. 4 (2026)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jts.v18i3.14574

Abstract

Accurate quantity take-off is essential for reliable construction cost estimation, particularly in reinforced concrete works, which involve complex and error-prone calculations. This study evaluates the accuracy of BIM 5D-based quantity take-off and examines cost deviations compared to conventional contractor estimations. A three-story dormitory building was modeled using BIM 5D (Cubicost), and the results were validated against manual analytical calculations. The validation shows strong agreement, with a maximum deviation of 0.75% and a high linear correlation across concrete, reinforcement, and formwork quantities. A comparative analysis with the contractor’s Bill of Quantity reveals a cost difference of approximately 3.4%, with the contractor’s estimate being higher. This deviation is primarily attributed to simplifications in conventional methods, including double counting at element interfaces, generalized reinforcement detailing, and the inclusion of material allowances. In contrast, BIM 5D enables a more integrated and precise estimation by accounting for element interactions and optimizing reinforcement configurations. However, the results also highlight that BIM-based estimation is sensitive to modeling assumptions and parameter settings. Therefore, aligning BIM models with actual construction practices is essential to ensure reliable and applicable results. Overall, this study demonstrates the potential of BIM 5D to enhance the accuracy, consistency, and transparency of construction cost estimation.
ANALISIS DEFORMASI VERTIKAL BENDUNGAN TUKUL BERDASARKAN PEMBACAAN PATOK GESER Imam Nashrullah; Nugroho, Hari; Wikan Sadono, Kresno
Jurnal Teknik Sipil Vol. 18 No. 4 (2026)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jts.v18i4.14597

Abstract

Bendungan yang telah selesai dibangun akan mengalami tekanan dari beban sendiri dan air waduk yang dapat menyebabkan bendungan mengalami deformasi. Deformasi vertikal bendungan pasca konstruksi pada permukaan dapat dipantau dengan instrumentasi patok geser. Analisis deformasi vertikal difokuskan pada arah sumbu z sebagai data pengukuran yang menunjukkan tren penurunan pada permukaan tubuh bendungan. Hasil dari pengukuran dibandingkan dengan kriteria penerimaan dari Hunter and Fell, ICOLD, Sowers, Sherard, dan analisa berdasarkan Settlement Index (SI). Tujuan dari penelitian ini adalah untuk menganalisis perilaku deformasi vertikal Bendungan Tukul pasca konstruksi dengan menganalisis besaran penurunan yang terjadi terhadap kriteria penerimaan tersebut. Hasil analisis deformasi vertikal Bendungan Tukul pasca konstruksi dalam periode 3 (tiga) tahun berdasarkan patok geser dari beberapa kriteria didapatkan hasil beberapa instrumen memiliki nilai abnormal atau di bawah kriteria penerimaan, sebagian besar instrumen memenuhi kriteria sehingga dianggap normal. Namun, dalam hal kriteria yang abnormal terjadi pada beberapa instrumen bukan berarti bendungan dianggap tidak aman. Hasil analisis SI, keseluruhan instrumen memenuhi nilai di bawah 0,02 dengan nilai 0,001 s.d. 0,015, sehingga penurunan yang terjadi dalam kategori normal.

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