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Fondasi: Jurnal Teknik Sipil
Published by Universitas Sultan Ageng Tirtayasa
ISSN : 23024976     EISSN : 25031511     DOI : http://dx.doi.org/10.36055/jft.v9i1.7440
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Transportation
Terbitan berkala yang mempublikasikan hasil penelitian yang berkaitan dengan pengembangan sains dan teknologi dalam bidang teknik sipil (Struktur, Transportasi, Geoteknik, Sumber Daya Air dan Manajemen Konstruksi) sebagai bentuk kekayaan intelektual. Diterbitkan sebanyak 2 kali dalam satu tahun yakni pada Bulan April dan Oktober.
Arjuna Subject : -
Articles 318 Documents
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A Comparative Analysis of Fatigue Resistance in Asphalt Wearing Courses Modified with 7% Content of Natural Rubber and Waste Tire Rubber Hendrik Jimmyanto; Ramadhani Ramadhani; Rindu Twidi Bethary; Lega Lubis Reskita; Kiagus Muhammad Aminuddin
Jurnal Fondasi Vol 15, No 1 (2026)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v15i1.38785

Abstract

Fatigue cracking remains a primary structural failure in flexible pavements, necessitating the development of more ductile and resilient asphalt mixtures. This study investigates the fatigue performance of Asphalt Concrete-Wearing Course (AC-WC) modified with 7% natural rubber and waste tire rubber, specifically comparing Pre-vulcanized Latex (LP7) and a combination of solid natural rubber and crumb rubber (KACR 7) against a conventional 60/70 penetration grade asphalt (Aspen). The experimental program employed the Indirect Tensile Fatigue Test (ITFT) under a controlled-stress mode of 500 kPa at 20°C to evaluate stiffness degradation, horizontal deformation, and cumulative strain. The results indicate that the 7% rubber modification induces a significant "softening effect," reducing the initial stiffness modulus from 30,136 MPa in the control sample to 19,055 MPa in the LP7 variant. This reduction in stiffness is accompanied by an increase in initial strain, with LP7 and KACR 7 reaching 214 μϵ and 164 μϵ, respectively, compared to only 94 μϵ for the Aspen sample. While the control sample demonstrated a longer laboratory fatigue life (Nf) of 3,381 cycles, the rubber-modified mixtures showed superior ductility and energy dissipation capacity through higher cumulative horizontal strain. Furthermore, evaluation against perpetual pavement criteria revealed that only the Aspen sample falls within the ideal endurance limit (
Effect of Discharge Variations on Flow Characteristics in Chute Syabrina Arvadelia; Firyaal Nabila; Bayu Krisna Wisnulingga; Ngakan Putu Purnaditya; Bambang Adhi Priyambodho; Subekti Subekti
Jurnal Fondasi Vol 15, No 1 (2026)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v15i1.39612

Abstract

The utilization of water resources in open channel systems is critical to support drainage efficiency and surface flow control, especially in areas with steep topographic conditions. Chute are used to overcome flows with large base slopes so that channels can be designed with sub-critical bottom slopes and do not cause erosion. This study aims to analyze the effect of discharge variations on the characteristics of flow and hydraulic jump on chute. The research method uses a physical model using flume conducted at the Integrated Laboratory of Sultan Ageng Tirtayasa University. Based on the results of the study, it was shown that the increase in flow discharge at the constant slope (1:1) and the difference in the constant height of the chute (0.2 m) resulted in an increase in water level elevation and an increase in velocity upstream, retreat and downstream. The type of flow that occurs upstream is an almost critical flow (Fr = 1), while the type of flow in the upstream and downstream is a supercritical flow (Fr > 1). The hydraulic jump length and hydraulic jump height have increased due to the increase in flow discharge. The flow velocity and froude numbers from upstream to upstream have increased, while the flow velocity and froude numbers from downstream have decreased.
PCI Girder Analysis on Bridge Structure (Case Study: Main Bridge Simpang Susun Cikulur STA 37+425.65 Serang-Panimbang Toll Road Project) Rizka Apriliani; Soelarso Soelarso; Baehaki Baehaki; Zulmahdi Darwis; Midia Rahma; M. Hasbi Zuher
Jurnal Fondasi Vol 15, No 1 (2026)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v15i1.41086

Abstract

This study discusses the analysis of PCI Girder on bridge structures. The purpose of this study is to determine the pretension force, loss of prestress, and deflection that occur in the PCI Girder in the case study of the Main Bridge Sumpang Susun Cikulur STA 37+452,650 Serang-Panimbang Toll Road Project. The bridge that was used as a review in this study was a bridge with a span of 20.6 m. The structural element analyzed is the PCI Girder with 2 tendons. The loading regulations used in the analysis refer to SNI 1725:2016, and the analysis of the bridge structure is based on SNI 2847:2019. The results of the analysis showed that the PCI Girder on the Main Bridge Simpang Susun Cikulur STA 37+452.65, Serang-Panimbang Toll Road Project, received an initial prestressed force of 5833.14 kN and decreased to 4901.50 kN in the final condition. The loss of prestressed force that occurred consisted of 8% for immediate loss and 11.72% for time-dependent loss. In addition, the deflection experienced by the girder was 29.91 mm upward under the transfer condition, 13.48 mm upward due to short-term loading, and 60.45 mm downward due to long-term loading.
Innovative Structural Design of a Warren Truss Steel Bridge Utilizing Double Angle Sections Kuncoro, Hendrian Budi Bagus; Sari, Rizki Yunita
Jurnal Fondasi Vol 15, No 1 (2026)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v15i1.35414

Abstract

Warren truss-type steel bridges are a popular choice for short- to medium-span applications due to their structural efficiency and straightforward fabrication. Despite these advantages, further optimization of structural elements remains essential to improve performance and reduce costs. This study focuses on the structural design and analysis of an 8-meter Warren truss steel bridge using double angle profiles (50 × 50 × 5 mm) to enhance strength and material efficiency. The bridge was modeled and analyzed using SAP2000 software, considering various load combinations—dead, live, wind, and ultimate—according to the SNI 1725:2016 and SNI 1729:2015 standards. Structural verification involved evaluating axial forces in truss members, the capacity of A325 Ø10 mm bolted connections, and overall stability. The results demonstrated that all structural components operated within safe limits, with strength ratios below 0.95 and a maximum vertical deflection of 0.00416 mm, well under the allowable deflection threshold (1/800 L). The total weight of the bridge frame was 607.94 kg. These findings indicate that the use of double angle profiles in Warren truss bridges offers a structurally sound and cost-effective solution suitable for short- to medium-span bridge construction in Indonesia.
Overload Impact Analysis On The Pavement Design Life of Toll Roads (Case Study: Tangerang-Merak Toll Road Segment KM 71+000 to KM 77+000 Towards Jakarta) Rindu Twidi Bethary; Dwi Esti Intari; Arief Budiman; M. Raslin Hudaya; Muhammad Fakhruriza Pradana; Wiwien Suzanti
Jurnal Fondasi Vol 15, No 1 (2026)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v15i1.39610

Abstract

The Tangerang–Merak Toll Road section from KM 71+000 to KM 77+000 in the direction of Jakarta plays an important role in the distribution of industries from Anyer, Cilegon, and surrounding areas. However, the high volume of ODOL (Over Dimension Over Load) vehicles causes excessive loads exceeding the pavement’s design capacity, accelerating damage, reducing design life, increasing maintenance costs, and endangering safety. An analysis is needed to determine the impact of excessive loads on pavement design life on this section. This study aims to determine traffic volume and analyze the impact of overloaded vehicles on pavement design life using the AASHTO 1993 and MDPJ 2024 methods for VDF calculations. Data from the 2024 LHR shows a total of 8,090,694 vehicles, consisting of 97.71% normal vehicles and 2.29% overloaded vehicles. The VDF values for normal vehicles in categories 1–5 are 1.86; 1.83; 1.68; 2.58; and 1.45. Meanwhile, the VDF for overloaded vehicles is 1.86; 1.95; 16.10; 3.03; and 1.96. Class 3 vehicles tend to be overloaded, resulting in a high VDF. The design life of the road with normal vehicles is 5 years (truck factor 1.46), but it decreases to 2.275 years due to overloading (truck factor 3.55). Overloading and uneven distribution accelerate damage and reduce the road’s design life. Simulations of 5%, 10%, and 15% increases in overloaded vehicles reduce design life to 2.176; 2.087; and 2.005 years, respectively. This demonstrates that overloaded vehicles significantly impact the reduction of road design life.
Study of Granular Soil Behavior under Different Drainage Conditions Ina Asha Nurjanah; Rama Indera Kusuma; Enden Mina; Woelandari Fathonah; Prastika Wahid Santoso; Midia Rahma; Abdurohim Abdurohim
Jurnal Fondasi Vol 15, No 1 (2026)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v15i1.39876

Abstract

Granular soils, such as sand and gravel, exhibit distinct mechanical behavior depending on drainage conditions during loading. This study aims to evaluate the influence of drained and undrained conditions on shear strength, deformation characteristics, and pore water pressure response of granular soils through a comprehensive literature review. The research is grounded in classical soil mechanics theories and recent studies, without conducting laboratory testing, and instead focuses on a comparative analysis of previous findings.The results indicate that under drained conditions, granular soils generally exhibit higher shear strength due to the absence of excess pore water pressure, allowing effective stress to govern soil behavior. Dense granular soils tend to exhibit dilative behavior, which contributes to increased strength and stability. In contrast, under undrained conditions, the inability of pore water to dissipate leads to the generation of excess pore water pressure, reducing effective stress and shear strength. This condition is particularly critical in loose saturated sands, where contractive behavior may trigger instability or liquefaction.Furthermore, this study contributes by providing a conceptual synthesis that integrates effective stress, pore water pressure, and deformation behavior into a unified framework for understanding granular soil response under different drainage conditionsmore reliable and safer geotechnical engineering practices.
Field Testing and Concrete Quality Analysis for Column, Beam and Floor Slab Structures at Siloam Silampari Hospital, Lubuk Linggau City using the Ultrasonic Pulse Velocity (UPV) Method M. Hasbi Zuher; Zulmahdi Darwis; Soelarso Soelarso; Baehaki Baehaki; Midia Rahma; Abdurohim Abdurohim; Arief Budiman; Ina Asha Nurjanah
Jurnal Fondasi Vol 15, No 1 (2026)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v15i1.41195

Abstract

The construction of tall buildings is inextricably linked to various quality standards, which are used to create safe and comfortable buildings for occupants, users, and surrounding buildings. Concrete quality testing is one of the necessary tests performed on construction projects to ensure that towers or tall buildings comply with existing standards and regulations. Testing concrete structures after casting is crucial to ensure they conform to the intended design. Various types of testing can be performed, including non-destructive testing (NDT), semi-destructive testing (SDT), and destructive testing (DT). In this study, we used the Ultrasonic Pulse Velocity (UPV) testing method. Concrete testing using UPV is one of the tests that is more widely used because of the satisfactory results using ultrasonic waves and requires relatively low costs compared to other testing methods. The results obtained were in the Good Concrete Quality Category from the total sample of test points. The minimum concrete compressive strength requirement is 21 MPa for special structural concrete quality based on SNI-2847-2019.
Dam Break Simulation of Sindangheula Dam Using HEC-RAS 2D Angel Laurent Aldamike Dipra Sintia; Firyaal Nabila; Subekti Subekti; Bambang Adhi Priyambodho; Ngakan Putu Purnaditya; Bayu Krisna Wisnulingga
Jurnal Fondasi Vol 15, No 1 (2026)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v15i1.39450

Abstract

Dams serve various utilities but inherently carry significant risks, particularly the potential for dam failure, which can lead to catastrophic flooding due to the sudden release of high-velocity flows toward downstream areas. While dam break simulations have been widely studied, no prior research has specifically analyzed the Sindangheula Dam using the HEC-RAS model. This study aims to simulate dam failure to determine the design flood discharges for Q1000 and QPMF, the resulting hydrographs following the dam break, and the extent of flood inundation. The design flood hydrographs in this simulation were generated using the Snyder method and modeled through the HEC-HMS software. The dam break analysis for Sindangheula Dam was conducted using a fully 2D model in HEC-RAS, incorporating both overtopping and piping failure scenarios Froehlich 2008. The hydrologic analysis yielded a Q1000 discharge of 498,27 m³/s and a QPMF discharge of 701,88 m³/s. The overtopping scenario produced the most severe impacts, with peak hydrographs reaching 5168,57 m³/s for Q1000 and 5267,21 m³/s for QPMF. Flood depths reached up to 18,27 m with an inundation area of 66,62 km² under Q1000, and up to 18,22 m with 70,44 km² under QPMF, submerging downstream regions including Taktakan, Serang, Cipocok, Kasemen, and Pontang.

Page 32 of 32 | Total Record : 318

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