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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 303 Documents
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Reinforcement Design of Transfer Beams in a three-Story Residential Building Usnawa, Hamid Wafiq; Soelarso, Soelarso; Baehaki, Baehaki; Darwis, Zulmahdi; Rahma, Midia
Jurnal Fondasi Vol 14, No 1 (2025)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v14i1.32287

Abstract

Residential buildings are buildings that are used as residences, for example, houses. In residential buildings that carry modern aesthetics will make the shape of the plan tend to be irregular, so it is necessary to adjust structural elements such as slender columns and transfer columns. A transfer column is a column that rests on a beam (grows across the beam), so the column is not continuous from the bottom floor to the top, while the beam is called a transfer beam. Transfer beams allow load distribution from the upper floors to the structural elements below. This study was conducted to determine the reinforcement requirements of transfer beams in a three-story residential building in accordance with SNI 2847: 2019. Structural analysis was carried out with the ETABS v9.7.1 program and manual calculations to determine the reinforcement configuration of the transfer beam. The result of the research is that the transfer beam with dimensions of 350 mm x 650 mm has a reinforcement configuration, namely 4D19 tensile and 6D19 compressive reinforcement in the support area, and 12D19 tensile and 6D19 compressive reinforcement in the field area, for stirrup reinforcement used 3D12 - 100 mm and for torsion reinforcement used 2D16. As for the deflection that occurs, which is 7,782 mm, this value is still within the permit limit according to SNI 2847: 2019. It can be concluded that the transfer beam is safe to use.
Evaluation of Urban Road Stability Through the Integration of the Surface Distress Index and International Roughness Index Oktopianto, Yogi; Antonius, Antonius; Rochim, Abdul
Jurnal Fondasi Vol 14, No 1 (2025)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v14i1.30893

Abstract

In an effort to improve the quality of transportation infrastructure, road maintenance requires an evaluation of road conditions. The Surface Distress Index (SDI) and the International Roughness Index (IRI) are two primary classical indicators used to assess road conditions. Although both are utilized independently, the relationship between them has not been widely studied. This research aims to analyze the correlation between the Surface Distress Index (SDI) and the International Roughness Index (IRI), particularly in the context of road maintenance, and to evaluate the effectiveness of integrating both indices in urban road maintenance planning. This study was conducted using a correlation method and approach, involving field data collection along urban road segments. The SDI and IRI were measured using standard measurement devices provided by Bina Marga, and the correlation patterns between the two were analyzed statistically. The findings reveal that SDI is significantly correlated with IRI, indicating that as surface distress (SDI) increases, it directly leads to an increase in road surface roughness (IRI). The results also indicate that combining the two indices can improve the accuracy of road condition assessments. The quadratic model was identified as the most optimal for describing the relationship between SDI and IRI, with a model performance explaining 79% of the variation in IRI.
Modeling of Water Seepage at Sindang Heula Dam Kusumaningrum, Winda; Purnaditya, Ngakan Putu; Fathonah, Woelandari; Priyambodho, Bambang Adhi; Subekti, Subekti; Nabila, Firyaal
Jurnal Fondasi Vol 13, No 2 (2024)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v13i2.32721

Abstract

A embankment dam is a dam built by stockpiling materials such as stones, gravel, sand, and soil on a certain composition with the function of carrying or lifting the water surface contained in the reservoir [1]. One of the structural safety of a embankment dam is against water seepage. Water seepage that occurs on the slope body during flooding can affect the decrease in slope stability, where the seepage will cause piping symptoms [2]. This study aims to determine the seepage discharge value that occurs in the dam body. The object of this study was Sindang Heula embankment dam in Banten Province. The method used is to conduct an analysis using GeoStudio software with the SEEP/W feature for seepage discharge. Simulation run in two scenarios as steady state condition and transient. Both scenario also run at least on three reservoir water level conditions. They are water level during flood, normal water level and half of full water level. Steady state condition gave seepage flux about 3.773×10-6 m3/sec/m2 as maximum value. In another hand, 30 days transient simulation gave maximum value about 8.7188×10-4 m3/sec/m2 and it occurred in small reference time after initial run. This study infomed that SEEP/W has capability to simulate water flux through porous media of embankment dam.
Stabilization of Expansive Clay Soil with Fly Ash and Ground Granulated Blast Furnace Slag Materials on UCT Values (Case Study: Jalan Desa Sudimanik Kec.Sudimanik, Kab Pandeglang, Banten) Kusuma, Rama Indera; Abdurrohim, Abdurrohim; Vihawian, Vini; Mina, Enden; Fathonah, Woelandari
Jurnal Fondasi Vol 13, No 2 (2024)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v13i2.32672

Abstract

Land is one of the important elements in construction projects and must have high bearing capacity to support the structure above it. Civil construction, whether roads, buildings, or other structures, will last a long time if one of the factors is supported by good subgrade. The location of the road in Sudimanik Village has soil that is classified as expansive clay, which has a high shrinkage capacity due to changes in water content. One way to improve unstable soil is to add additional materials such as Fly Ash and Ground Granulated Blast Furnace Slag (GGBFS).The purpose of this study was to determine the characteristics of the soil based on the classification and physical properties of the soil using the Unified Soil Classification System method and to determine the characteristics of the soil and the effect of adding consistent variations of fly ash at 20% and variations in the percentage of GGBFS 0%, 10%, 20%, and 30% as additional material for soil stabilization against the unconfined compressive strength value with variations in curing time of 0, 7, 14 and 28 days.The results of this study obtained soil classification according to the USCS classification including ML or inorganic silt and very fine sand, rock dust or fine silty or clayey sand. The plasticity index value after the study was 12.69%, in variation E, namely the addition of 20% fly ash and 30% GGBFS. The optimum qu value is in variation E with a curing time of 28 days, which is 2.287 kg / cm2. And experienced an increase in qu value of 295.918% from the original soil condition.
Planning of Pedestrian Facilities and Integrated Crossing Based on the Concept of Active Living on C UNTIRTA Bethary, Rindu Twidi; Intari, Dwi Esti; Pradana, Muhammad Fakhruriza; Maharani, Anisah Yogiana
Jurnal Fondasi Vol 14, No 1 (2025)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v14i1.32179

Abstract

Campus C of Sultan Ageng Tirtayasa University does not yet have adequate pedestrian facilities and crossing facilities at the main gate are not yet available so that the analysis of pedestrian facilities and crossing facilities is carried out with the aim of knowing the types of pedestrian facilities and road crossing facilities needed and making pedestrian facility designs that use the concept of active living. Campus C of Sultan Ageng Tirtayasa University is located on Jalan Ciwaru Raya No. 25, Cipare, Serang City. Data collection was conducted using direct observation method. The data collected included pedestrian volume, traffic volume, crosswalk volume, and road geometric data. The results showed that the recommended crossing facility for segment 1 on Jalan Ki Ajurum No. 2 is a zebra crossing with waiting stalls with a maximum PV2 result of 1748717534 (1 × 109). While for segment 2 on Jalan Ciwaru Raya No. 25 is a zebra crossing with a maximum PV2 result of 1615465208 (1 × 109). The recommended effective width of sidewalks within Campus C of Sultan Ageng Tirtayasa University is divided into 2 sizes, namely 2 meters and 2.5 meters. Complementary facilities that support the concept of active living that can be recommended are by providing seating, lighting, shading in the form of trees, trash bins, drinking water taps at several points, and special paths for people with disabilities.
Crafting and Testing an Elementary Device for Transporting U Ditches for Hands-on Learning in Road and Bridge Engineering at Technical High Schools Putri, Mukhlisya Dewi Ratna; Mursid, Mursid
Jurnal Fondasi Vol 13, No 2 (2024)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v13i2.32684

Abstract

This research aims to develop a simple and effective tool for moving U- shaped drainage channels (U ditch) with the aim of helping construction workers and farmers move U ditch more easily and efficiently. For this reason, this research takes the title "Development and Evaluation of a Simple Tool for Moving U Ditch as a Practice Tool for Vocational Engineering Students in Road and Bridge Design”. This research also provides practical training facilities for road and bridge design engineering vocational students. The research method used is to make prototypes of tools from materials that are durable and easily available, and then tested in the field. The research results show that the developed tool can increase effectiveness and efficiency in moving U ditch at low cost. It is hoped that this research can contribute to the development of better and more innovative construction technology. From all the processes carried out, this research is classified as TKT scale 3 with a national research focus area of Engineering Engineering which has a national research priority for 2020 - 2024 to produce added value. It is hoped that the indicators in the TKT 3 categories can be met, from the methodological design used to answer the research questions that has been prepared to producing a simple tool design for moving u-ditch for practical learning. The scientific publications that can be produced from this research include the Accredited National Journal : SNIV Journal.
Study of Equilibrium Time in Wetting Soil-Water Characteristics Curves (SWCC) using Capillarity Column Method Nurjanah, Ina Asha; Kusumah, Rama Indera; Mina, Enden; Fathonah, Woelandari; Abdurohim, Abdurohim
Jurnal Fondasi Vol 14, No 1 (2025)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v14i1.32281

Abstract

The soil-water characteristic curve (SWCC) of soil plays the key roll in unsaturated soil mechanics which is a relatively new field. To encourage the geotechnical engineers to apply unsaturated soil mechanics theories in routine practice, numerical methods, based on the SWCC and saturated soil properties, have been developed to predict unsaturated permeability function and unsaturated shear strength properties which are expensive, time consuming, and it may require specials techniques or apparatus to measure the SWCC in laboratories. However, it is important to have laboratory measured data of SWCCs to enhance and verify the proposed numerical methods. Hence, employing the capillary column method which applies the tempe cell pressure principle, namely varying the matric suction value, this study aims to obtain the water content in each matric sauction variation which is then presented in SWCC form. Saturated permeability is obtained from constant head test. Permeability function is calculated indirectlt by Fredlund and Rahardjo method (1993) using SWCC and saturated permeability. 
Landslide Potential Analysis using Geographic Information System and Analytical Hierarchy Process (AHP) (Case Study: Taktakan District, Serang City) Mina, Enden; Fathonah, Woelandari; Kusumah, Rama Indera; Nurjanah, Ina Asha; Rafsanjaya, Aditiya
Jurnal Fondasi Vol 14, No 1 (2025)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v14i1.32283

Abstract

This research aims to analyze the landslide potential in Taktakan Sub-district, Serang City, which is prone to landslides due to geographical and hydrometeorological factors. The analysis was conducted using Geographic Information System (GIS) method with QGIS software and Weighted Linear Combination (WLC) approach combined with Analytical Hierarchy Process (AHP). Factors causing landslides, such as slope, rainfall, geology, and land use, were analyzed based on the weights obtained from respondents' questionnaires. The results showed that rainfall has the greatest influence (42%), followed by slope (37%), geology (11%), and land use (10%). The highest landslide potential is found in Taktakan sub-district, with the dominant vulnerability level in the medium class (50.73%), while the high and very high risk areas are 20.65% and 3.66%, respectively. This study concludes that high rainfall and steep slopes are the main factors that increase the risk of landslides in the area
Analysis of Trip Generation and Attraction Model in South Tangerang City Budiman, Arief; Bethary, Rindu Twidi; Suzanti, Wiwien; Kusuma, Indriani Fadiah
Jurnal Fondasi Vol 13, No 2 (2024)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v13i2.32723

Abstract

South Tangerang City encounters a significant increase of population every year, due to the rapid development of South Tangerang City. The increase in population causes a high demand for housing, jobs, and more. These needs cause many land uses changing function. Land use change must be accompanied by transportation planning so it does not cause traffic problems like congestion. The generation model is the early stage of urban transportation planning, the modelling of trip generation and attraction in South Tangerang City is carried out to find out the factors causing the trip generation and attraction in this city and to gain the best model. The parameters of the model is the land use in the city that was received from the government of South Tangerang City. The analysis was made in stages starting from validity and reliability test, correlation test, linearity test, and the final one is multiple linear regression test with stepwise method type 1. Based on the analysis result, the factor that has the greatest influence on trip generation in South Tangerang City is number of primary educational facilities (elementary school, islamic elementary school, junior high school, and islamic junior high school) (X3) with the selected model is Y1 = 1129,265 + (383,198) X3 and the value of R2 = 0,809. Furthermore, the factor that has the greatest influence on trip attraction in South Tangerang City is number of hospitals (X6) with the selected model is Y2 = 69668,640 – (3372,120) X6 and the value of R2 = 0,826.
Experimental Study of Joint Tool Variations in Cold Rolled Steel Structure Connection Systems C75 – 0,65 mm Kuncoro, Hendrian Budi Bagus; Indianto, Andi; Putri, Mukhlisya Dewi Ratna
Jurnal Fondasi Vol 13, No 2 (2024)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v13i2.32674

Abstract

C75 cold rolled steel is a material used in building construction with a lighter weight compared to conventional steel. One important aspect in the design of C75 light steel is the connection, where the connection must be designed safely so it is very important to maintain the structural integrity of the building and ensure the safety of building users. The aim of the research is to obtain the correct formulation for the C75 mild steel connection type in relation to the thickness of the C75 cold rolled steel. The method used is to create a connection system in the form of a variety of connections consisting of connections using screws only, combined screws and bolts, and connections using rivet nails. Overall, from the test results, it was found that the use of mild steel connections with a modified model between screws and bolts produced a greater value compared to using rivet connection tools alone or screws alone, this happened the same for every thickness of mild steel tested, both thickness 0, 65 mm, 0.75 mm or 1.00 mm. The greatest results were found in the connection of 4 screws and 1 bolt at a mild steel thickness of 1.00 to 100.00 N with a deflection of 2.58 mm. When compared with rivets, the increase reached 42.50%, while compared with screws, there was an increase of 20.00%. So rivet connections are brittle compared to screws and screw and bolt connections are a more ductile connection, so they can be recommended as connections in light steel. It's just that mild steel which has a greater thickness tends not to cause buckling compared to mild steel which is much thinner, where buckling is likely to occur in the mild steel material.

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