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Putri Wedayanti
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Jurnal Ilmiah Teknik Sipil
Published by Universitas Udayana
ISSN : 14111292     EISSN : 25415484     DOI : https://doi.org/10.24843/JITS.2025.v29.i02.p00
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Jurnal Ilmiah Teknik Sipil (p-ISSN: 1411-1292; e-ISSN: 2541-5484) is an online periodical journal of science that is published twice a year in January and July since 2016 untill 2022. Since 2023, this journal publishes twice a year in March and September and has changed its language from Bahasa Indonesia to English. This Journal is published by the Civil Engineering Department, Faculty of Engineering, Udayana University. Jurnal Ilmiah Teknik Sipil is a media to publish the results of scientific research students, academics, practitioners, and observers in the field of civil engineering including Building Materials and Structures; Structural and Bridge Engineering; Geotechnical Engineering; Transportation & Road Engineering & Policy; Constructions Technology, Economy and Management; Labour Safety, Procurement, and Legal Aspects in Civil Construction; Water Resources Engineering & Management; Coastal and Port Engineering; Information Technologies in Civil Engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 44 Documents
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A COMPARATIVE STUDY OF PILE BEARING CAPACITY ANALYSIS RESULTS BASED ON THE EMPIRICAL METHOD (STANDARD PENETRATION TEST) AND THE FINITE ELEMENT METHOD Alfin Reza Saputra Alfin; Dian Purnamawati Solin; Yerry Kahaditu Firmansyah
Jurnal Ilmiah Teknik Sipil Vol. 28 No. 2 (2024): Jurnal Ilmiah Teknik Sipil, Vol. 28 No. 2, September 2024
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITS.2024.v28.i02.p01

Abstract

This study aims to compare the bearing capacity of steel pile foundations using two approaches: an empirical method based on Standard Penetration Test (SPT) data with Meyerhof’s formula, and a numerical method based on the Finite Element Method (FEM). The research object is a steel pipe pile foundation with a diameter of 850 mm and a depth of 43 meters, used in a port dock structure. Data were obtained from field tests, including bore logs and corrected N-SPT values. The Meyerhof method was applied to manually calculate the end-bearing and shaft friction capacity of the pile, while the FEM approach involved two-dimensional geometric modeling using soil parameters derived from field data and technical assumptions. The analysis results indicate that the Meyerhof method yields an allowable bearing capacity of 7855.23 kN/m², whereas the FEM method results in a capacity of 1432.16 kN/m², with a comparison ratio of 0.1823. This discrepancy suggests that the finite element method provides more conservative and realistic results by thoroughly considering soil-structure interaction. Therefore, the finite element method is recommended for foundation design in large-scale projects or cases requiring high accuracy.
STUDY ON THE CHANGES IN CHARACTERISTICS OF HIGHLY EXPANSIVE SOIL IN CIREBON DUE TO ADDITION OF EGGSHELL POWDER Gerry T Padantha; Billy Tanadi; Hasbullah Nawir
Jurnal Ilmiah Teknik Sipil Vol. 29 No. 2 (2025): Jurnal Ilmiah Teknik Sipil, Vol. 29 No. 2, September 2025
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITS.2025.v29.i02.p01

Abstract

Expansive soils, which swell with increased moisture and lose strength compared to their dry state, can cause landslides, structural cracks, and other shrink–swell related issues. Lime treatment is commonly used to mitigate these problems but is unsustainable and leaves a large carbon footprint. As an alternative, eggshell powder (ESP), rich in calcium, is proposed as a stabilizing agent. Soil properties were tested in accordance with ASTM standards. Consistent with Lee and Suedkamp, high-plasticity soil shows no distinct optimum dry density, making it difficult to establish a clear pattern of changes in this property. ESP addition reduces the Atterberg limits and Methylene Blue Value, lowers the swelling potential, and increases the unconfined compressive strength (UCS). The calcium content in ESP decreases the soil’s capacity to swell, although the effect appears limited due to remaining organic components. A significant improvement in UCS was observed with 5% ESP at 14 days of curing, increasing strength from 181.87 kPa to 327.49 kPa, while the most notable reduction in swelling potential occurred with 15% ESP at 7 days of curing. However, both UCS and swelling potential showed no consistent trend, likely due to complex interactions of organic materials in ESP that reduce its effectiveness in soil stabilization.
IDENTIFICATION OF THERMAL COMFORT CONDITIONS IN A RESIDENTIAL: A CASE STUDY OF A 2-STORY BALINESE CONTEMPORARY HOUSE IN BATUAN, GIANYAR, BALI I Putu Weka Wendyputra; Kadek Wisnawa; Alvin Yesaya
Jurnal Ilmiah Teknik Sipil Vol. 28 No. 1 (2024): Jurnal Ilmiah Teknik Sipil, Vol. 28 No. 1, Maret 2024
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITS.2024.v28.i01.p04

Abstract

Housing is a fundamental human need that requires to offer its occupants the best possible safety and comfort. The Gianyar district of Bali is now home to a disproportionate number of structures of the Bali architectural style. The thermal comfort of modern Bali buildings is the subject of the bare minimum research, which makes it crucial to determine the thermal comfort of these structures as a foundational knowledge and point of reference for thermal studies of comparable structures. Using Autodesk Ecotect Analysis 2011 software, the research was conducted by modeling spatial convenience and presenting quantitative descriptive data through data tabulation and graphics. The study's findings demonstrated that the Bali Contemporary Building Study facility in Mas Village, Gianyar, had thermal comfort levels that exceeded Indonesia's norms.
DRINKING WATER DEMAND ANALYSIS AND MASTER PIPE NETWORK SIZE PLANNING IN UNGASAN VILLAGE, SOUTH KUTA SUBDISTRICT, BADUNG REGENCY Ida Bagus Made Baskara Andika; I Nyoman Ariaputra
Jurnal Ilmiah Teknik Sipil Vol. 28 No. 2 (2024): Jurnal Ilmiah Teknik Sipil, Vol. 28 No. 2, September 2024
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITS.2024.v28.i02.p05

Abstract

Ungasan Village is located in South Kuta District of Badung Regency, where the demand for water increases over time and the increase in tourism accommodation. Perumda Tirta Mangutama is an agency that provides water in the Badung area including Ungasan village, because Ungasan village is located in a topographic and geological structure composed of limestone rocks which makes other springs difficult to find. In the service by Perumda Tirta Mangutama, there are problems caused by the uneven and optimal pipe network currently owned, resulting in disrupted services such as dead water and people who still rely on tank water to fulfill their water needs. This study aims to analyze water demand and plan the optimal size of the main pipe network to serve the people of Ungasan village. The results of the analysis of Ungasan village population projections using the Least Square method until 2033 are 19,799 people, with a maximum day demand of 49.4975 liters / second. The main pipe planning is divided into 3 segments with the selection of main pipe locations based on public roads based on their function with a diameter of 10 inches and 8 inches.
SEISMIC DESIGN FOR INFRASTRUCTURES I Wayan Redana; I Made Aryatirta Predana; I Kadek Edy Suhendrawan; I Ketutu Sudarsana
Jurnal Ilmiah Teknik Sipil Vol. 28 No. 1 (2024): Jurnal Ilmiah Teknik Sipil, Vol. 28 No. 1, Maret 2024
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITS.2024.v28.i01.p08

Abstract

Seismic design for infrastructures such as building and non-building is designed based on design ground shaking shall be characterized by the design spectrum. This study aims to evaluate seismic design for infrastructures following SNI 1726-2019. Several site investigations are taken by conducting boring to a depth of 30 m to count the soil site classification. It might be summarized that the area of investigation is classified as SC/hard soil, very solid and soft rock, SD/medium soil and SE (soft soil).
COMPARATIVE ANALYSIS OF COLUMN AND BEAMS VOLUMES OF CONVENTIONAL STRUCTURES WITH OUTPUT FROM AUTODESK REVIT AND PLAN TIME WITH WORK REALIZATION USING NAVISWORK Ariany Frederika; A.A Gde Agung Yana; I G. A. Adnyana Putera; Muhammad Risqi A
Jurnal Ilmiah Teknik Sipil Vol. 28 No. 1 (2024): Jurnal Ilmiah Teknik Sipil, Vol. 28 No. 1, Maret 2024
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITS.2024.v28.i01.p10

Abstract

The government issued regulations related to BIM (Building Information Modeling) in July 2021. The PUPR Ministry issued circular no. 11/SE/Db/2021 which requires the implementation of BIM. There are BIM supporting applications, namely Autodesk Revit andAutodesk Naviswork. This research takes a case study of the construction of the Prof. Mother and Child Hospital Building. Dr. I.G.N.G Ngoerah Denpasar, whose BoQ calculations still use conventional or manual methods. Therefore, this research was carried out to find out the comparison of the Building Information Modeling and conventional concepts. Secondary data includes work drawings, BoQ, schedule and AHSP. Based on the research that has been carried out, the results of the comparison of the volume of columns and beams of the Autodesk Revit output structure are the total volume of 852,921.74 kg of steel and 2,456.72 m3 of concrete with a comparison of the volume of concrete between conventional and output from Autodesk Revit 1:0.946 and the volume ratio of 1:0.976 with a total cost of conventional RAB of IDR 19,313,295,875.58 and RAB from Autodesk Revit of IDR 18,760,742,153.46 with a ratio ofconventional RAB to output from Autodesk Revit of 1:0.971. deviation of -2.95% where the RAB from Autodesk Revit is IDR 552,553,722.12 less. The results of the plan time display with realization produce 12 work items that are being worked on and 30% work realization is achieved on day 119.
CONTROLLING CONSTRUCTION’S TIME AND COST OF PUSKESMAS WITH EARNED VALUE METHOD M. Fanshurullah Asa; Anjelita Carmelitas Borges
Jurnal Ilmiah Teknik Sipil Vol. 28 No. 1 (2024): Jurnal Ilmiah Teknik Sipil, Vol. 28 No. 1, Maret 2024
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITS.2024.v28.i01.p09

Abstract

On a project there are always some problems there are caused by cost and time. In the implementation of projects it is very rare that it can go exactly as planned. In avoiding losses in development work activities, cost and time control is used with a concept commonly called the Earned Value concept method. The purpose of writing this paper is to analyze the cost and time performance in completing the Lumbang Puskesmas Building project, Kabupaten Probolinggo using the Earned Value method. The performance results of project implementation based on the concept of earned value from ACWP are Rp. 4,624,935,401, BCWS and BCWP values are Rp. 4,624,935,404. based on the ACWP, BCWS and BCWP values, the value of Cost Variance (CV) is Rp 3.40 and Schedule Variance (SV) is equal to zero. The values of SPI and CPI are equal to 1. The estimated project completion time is 150 days which is the same as the project plan time. The estimated final cost of the project is Rp. 4,624,935,397 which shows that the costs incurred are smaller than the total budget plan (BAC) of Rp. 4,624,935,404. As a result of these calculations, the project did not experience delays or additional costs.
A STUDY ON THE UTILIZATION OF RAINWATER HARVESTING FOR RAW WATER NEEDS IN A CAMPUS AREA Achmad Achmad Rafi'ud Darajat; Muhammad Amin; Ali Murtopo
Jurnal Ilmiah Teknik Sipil Vol. 29 No. 1 (2025): Jurnal Ilmiah Teknik Sipil, Vol. 29 No. 1, Maret 2025
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITS.2025.v29.i01.p03

Abstract

One of the Sustainable Development Goals (SDGs) is to ensure universal access to clean water. However, in practice, the availability of clean water often faces both quality and quantity challenges. Rainwater harvesting presents a viable alternative source of raw water that can be optimized to meet these needs. Preliminary observations at Universitas Tidar revealed that collected rainwater exhibited high turbidity levels and iron (Fe) content exceeding the quality standards set by the Indonesian Ministry of Health Regulation No. 32 of 2017. This study was conducted in the campus area of Universitas Tidar to evaluate the effectiveness of various activated carbon media thicknesses and contact times in improving rainwater quality. The treatment system utilized a Vertical Flow Roughing Filter (Upflow type) consisting of zeolite gravel, activated carbon, silica sand, volcanic sand, and a water filter housing unit. Three different thickness variations of activated carbon were tested. The results demonstrated significant improvements in water quality, particularly in reducing turbidity and iron content. The best performance was observed at the 60th minute using an 80 cm thickness of activated carbon, achieving 93% turbidity reduction and 99% iron removal efficiency. Based on these findings, the treated rainwater meets sanitation standards and can be safely used for sanitation purposes within the Universitas Tidar campus environment.
Cover and TOC Jurnal Ilmiah Teknik Sipil
Jurnal Ilmiah Teknik Sipil Vol. 28 No. 1 (2024): Jurnal Ilmiah Teknik Sipil, Vol. 28 No. 1, Maret 2024
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITS.2024.v28.i01.p00

Abstract

Cover and TOC
PIER PERFORMANCE LEVEL OF JAKARTA-BANDUNG HIGH SPEED RAILWAY WITH ISOLATOR UNDER EARTHQUAKE LOADS USING TIME HISTORY ANALYSIS Amirah Zakiyyah; Aris Aryanto; Bayu Wintoro
Jurnal Ilmiah Teknik Sipil Vol. 28 No. 2 (2024): Jurnal Ilmiah Teknik Sipil, Vol. 28 No. 2, September 2024
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITS.2024.v28.i02.p06

Abstract

This study analyzes the performance level of a typical pier structure on the Jakarta-Bandung High-Speed Railway (HSR) bridge located in the Bandung area, focusing on the effects of seismic loads. The structure utilizes double spherical bearings (isolators), and its performance is compared with a similar structure without isolators to evaluate the isolators’ effectiveness under design-level earthquakes. A Non-linear Time History Analysis (NLTHA) was conducted using 11 pairs of ground motion records. These motions were scaled to match the target response spectrum for Bandung using amplitude scaling in the DeepSoil program. Structural analysis was carried out using Midas Civil to determine the seismic performance levels of the piers Additionally, pier displacements were examined to further assess isolator performance. The results show that the structure equipped with isolators maintained a Fully Operational (FO) performance level, indicating minimal damage and full functionality after the earthquake. In contrast, the structure without isolators surpassed the elastic range but remained within the Immediate Occupancy (IO) performance level, suggesting minor damage but continued usability. These findings confirm that the use of isolators significantly enhances the seismic resilience of bridge piers in high-speed railway.

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