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Astonjadro
Published by Universitas Ibn Khaldun Bogor
ISSN : 23024240     EISSN : 26552086     DOI : http://dx.doi.org/10.32832/astonjadro
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Astonjadro: Jurnal Rekayasa Sipil adalah jurnal ilmiah dibidang teknik sipil p-ISSN : 2302-4240 dan e-ISSN : 2655-2086. Jurnal Rekayasa Sipil Astonjadro diterbitkan untuk mengapresiasi dan memberikan informasi ilmiah bagi peneliti, dosen serta para profesional. termasuk dalamnya pengembangan model dan konsep penelitian yang mengacu secara berkesinambungan. Jurnal Astonjadro diterbitkan oleh Fakultas Teknik dan Sains Universitas Ibn Khaldun Bogor, terbit dua kali dalam satu tahun yaitu bulan Juni dan Desember.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 507 Documents
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Effect of Compaction Temperature Variations on the Characteristics of Marshall Asphalt Concrete-Wearing Course [AC-WC] using Modified Asphalt (Asphalt Pertamina PEN 60/70 with Addition of 1.5% Styrofoam) Sakti Wibowo, Ramadhan
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.8277

Abstract

The road is one of the transportation infrastructures which is a basic need in community activities. Along with the development of road construction, road construction materials are needed that are more environmentally friendly and can improve the quality of the asphalt mixture. Styrofoam is one of the materials that can be added because styrofoam is a thermoplastic material. The compaction temperature is also a factor that it must consider during the implementation in the field because it will determine the level of asphalt stability. This research was conducted by an experimental method using modified asphalt with a mixture of 1.5% styrofoam. The optimum asphalt content used is 6%, with compaction temperatures of 80°C, 90°C, 100°C, 110°C, and 120°C based on the plot of the Bitumen Test Data Chart (BTDC). The data analysis is based on the results of the Marshall parameter values. The test uses asphalt inspection test equipment and Marshall test equipment. The results of this study are that the lower the compaction temperature, the smaller the Marshall parameter value, and the higher the compaction temperature, the higher the Marshall parameter value. Asphalt parameters decreased. Based on the Marshall test carried out, the compaction temperature that meets the requirements of the 2018 Highways specification from a temperature range of 80°C to 120°C with an interval of 10 C is at a temperature of 110ËšC and 120ËšC.
Ciliwung River Normalization Analysis using HEC-RAS Application (TB. Simatupang Bridge to Bidara Cina) Imammuddin, Mohammad; Priyo Andi Wicaksono, Dwi
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.7796

Abstract

Ciliwung River area which starts from TB. Simatupang Bridge to Bidara Cina is one of the areas that experienced severe flooding.This is caused by changes or conversion of land functions which were originally a water catchment area into settlements. Buildings that stand along the river body makes the current cross section of the Ciliwung River unable to function optimally in accommodating flood discharges. In addition, there is no public awareness in protecting the environment, it can be seen from the large piles of garbage on the riverside of the Ciliwung River.One of the efforts made by the government in flood control is river normalization, but in practice the normalization of the Ciliwung River can be said to be not running optimally. The purpose of this research is : the Author want to know how big the capacity of Ciliwung River existing cross section (starting from TB Simatupang Bridge to Bidara Cina) using Hec-Ras software application to modeling the river's cross section existing and so does recording and mapping ofpotentialflood locations. Based on the hydrology calculation, known that flood discharge plan Q25is 404.3m3/s, while the hydraulic Q is only 79.03 m3/s, the Q total is 483,38 m3/s. The results of modeling using the Hec-Ras river cross section existingcannot accommodate the planned flood discharge so that river normalization efforts are needed. Recording and mapping flood locations are useful to get the effectivity of River's normalization according to flood controlling at Ciliwung River (specific at TB Simatupang Bridge to Bidara Cina).
Analysis of Parking Needs at Kertapati Station Malaiholo, David; Wardani Puruhita, Hana; Yuda Pradana, Ikhsal
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.8502

Abstract

The increasing population, rapid development, increasing number of motorized vehicles and increasing community activities are part of the current transportation problem. These problems can have an impact on improving the need for parking. At Kertapati Station there is a parking space facility. Provision of parking space if not appropriately arranged can be a problem and interfere with the level of comfort in the service process and can result in traffic jams, especially at stations. This study aims to analyze parking needs at Kertapati Station, and project parking needs at Kertapati Station for the next 5 years. The research method used is the observation of parking when vehicles enter and exit the train station. The research was conducted for three days, Thursday to Saturday April 28-30 2022 with an observation time of 07.00-21.30 WIB. From the results of the data analysis, it is known that the largest parking space requirement occurs on Saturday 30 April 2022 for motorcycles of 177.86 SRP, and passenger cars as much as 86.42 SRP. The projection within 5 years is that in 2025 the need for parking space for motorbikes can still accommodate the number of vehicles of 177 SRP while for passenger cars there is a shortage of parking space of 49 SRP.
Analysis of the Capability of Pile Assembly Foundations in Soft Soil in Physical Modeling of Variationsiin Laboratory Scale Distances Rahman, Arief; Fatnanta, Ferry; Satibi, Syawal
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.8139

Abstract

The capacity of raft foundations, pile foundations and pile rafts on soft soil with variations in the distance between the piles. Perform analysis of the carrying capacity and settlement of each foundation test and then compare the results of the theoretical carrying capacity research with the analysis of carrying capacity calculations. The implementation of the test prepares the test along with samples of the raft foundation, pile foundation and pile raft foundation. The test were carried out using a gradual load then a dial gauge is placed at both ends of the sample raft and the load reading is taken. The pile foundation was tested with a decrease of 10 cm while the settlement on the raft foundation and the pile raft foundation was 3 cm, the carrying capacity of the raft foundation was 24 kg, the pile foundation varied 4D distances; 6D and 8D, namely 7.5 kg and the foundation of the pile raft with variations in 4D distance; 6D and 8D are 26 ; 32 and 32 kg. In the interpretation method, the pile raft foundation with various distances increased from 4D to 6D but decreased in 8D. Pile raft foundations with various distances between pile have not a significant effect where raft foundations are more dominant in supporting resistance than pile foundations.
Environmental Impact Analysis on School Building Construction in Sawangan 1 State Elementary School, Depok City Alimuddin, Alimuddin; Agung Wahyudi, Muhammad; Heryansyah, Arien
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.5185

Abstract

One of the goals of development is to improve the welfare of the community by building various supporting facilities and assets in people's lives. Depok City plans to build the Sawangan 1 State Elementary School. Environmental impact analysis studies are needed to predict the environmental impacts that will occur. This research aims to analysis the environmental baseline quality and predict the impacts that will occur as well as how to minimize impacts at the pre-construction stage, construction stage and operation stage. This research using observation method, interview method, and scoping. The results of this study are the initial environmental baseline at the research site indicates that the environmental quality at the research site is in good category, both in terms of ambient air quality, air quality and air quality, in order to create an environmental concept development environment. The predicted impacts that arise in the reconstruction activities of the Sawangan 1 State Elementary School, Depok City are at the pre-construction stage the impact is in the form of public perception, at the construction stage in the form of a decrease in air quality, an increase in increase, an increase in surface runoff, job opportunities and business opportunities, public health problems, domestic waste generation as well as the emergence of positive and negative public perceptions of construction activities, while at the operational stage the predicted impacts will be a decrease in air quality, increased opportunities and job opportunities for the surrounding community, public health problems, changes in environmental sanitation, traffic disturbance traffic and the emergence of public perception. In general, to minimize the negative impacts that occur in any reconstruction activity of the Sawangan 1 Elementary School building, Depok City can be carried out by means of a social approach with the community, carrying out construction activities only during the day, prioritizing local communities as workers, during the construction phase until the construction phase. and as a provider of workers' needs, optimizing reforestation in the environment and greem opem spaces as well as good waste management and complete cleaning facilities so as not to interfere with public health and produce environmentally friendly development.
Analysis of Transportation Mode Choice for Electric Rail Train (KRL) and Bus For Yogyakarta-Surakarta Travel Routes Permana Santoso, Gilang; Dwiatmoko, Hermanto
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.8628

Abstract

The presence of the electric rail train (KRL) on the Yogyakarta-Surakarta route expands the list of public transportation modes available to residents of Yogyakarta, Surakarta, and surrounding areas. The Yogyakarta-Surakarta route was previously served by one of the road-based transportation, namely Bus, which was widely used but was abandoned by its users due to a variety of factors. The presence of various alternative modes of transportation today, combined with the Covid-19 pandemic, allows users of public transportation services, particularly the Yogyakarta-Surakarta route, to freely make their choices. Data was gathered through direct interviews and online questionnaires distributed using Google forms. Multiple linear regression and binary logit nisbah were used in the data analysis, and the results were obtained using software, specifically Microsoft Excel and Statistical Product and Service Solutions (SPSS). The Study by binary logit results show that lowering the CBUS (Bus fee) by 1,58 times the unit of money from the CKRL (KRL fee) to Rp7.595/trip from the original Rp12.000/trip will increase bus users by 30%. If TBUS (bus time) is accelerated by 1,81 times the unit time from TKRL (KRL time) to 1 hour and 23 minutes/trip from the original 2 hours and 12 minutes, bus users increase by 50%. Bus users will increase by 70% while KRL users will decrease by 30%, so the number of FBUS (bus frequency) must be increased to 16 times/day from the original 10 times/day by 1,69 times FKRL (KRL frequency).
Planning Analysis of Asphalt Porous Mixture Based on Fly Ash Waste as Filler Substitution Gusty, Sry; Irmawan, Irmawan; Desi, Natsar
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.8320

Abstract

In relation to the development of the quality of the transportation system, road pavement technology will gradually develop and be updated in terms of the quality of the transportation infrastructure currently being developed by porous asphalt. Porous asphalt is an asphalt mixture that is designed to have a higher porosity than other types of pavement. it is obtained because the porous asphalt mixture uses a smaller proportion of fine aggregate than other mixtures. In addition to asphalt, there are aggregates both coarse and fine and filler is one of the components in a road pavement construction that has a big role. In order to increase its stability, the use of fine fractions including filler in the mixture proportion should be more. Class C coal fly ash is one of the non-organic and non-plastic materials that can be used as a filler in porous asphalt mixtures and is expected to increase its strength. The purpose of this study was to analyze the effect of using flyash on a porous asphalt mixture on the value of the marshall characteristics and the value of weight loss. The results of this study discuss the marshall test on variations in coal flyash waste 0%, 2%, 3%, 4%, 5%, and 6% using the REAM specification, for the VMA value the percentage of coal flyash waste all meets the specifications specified. has been required, for the VIM value only the percentage of 4% that meet the specifications and 0%, 2%, 3%, 5%, and 6% do not meet the required specifications. For the stability value, the percentage of coal flyash waste 2%,3%,4% met the specifications, while 0%,5%, and 6% did not meet the specifications. For the flow value, the percentage of coal flyash waste 5% did not meet the specifications, while 0%,2%,3%,4%, and 6% had met the required specifications. And for the value of VFB and MQ the percentage of coal flyash waste does not meet the required specifications. Based on the results of the REAM cantabro test, the percentage of coal flyash waste 0% and 2% did not meet the specifications, while 3%,4%,5%, and 6% met the predetermined specifications, namely the maximum weight loss value of 20%.
The Existence of Badung Market as a Public Space in Community Order in the City of Denpasar Gede Ari Putra, Dewa; Widiastuti, Widiastuti; Ketut Agusintadewi, Ni
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.7839

Abstract

The existence of traditional markets and modern markets, especially in Denpasar City, has become an inseparable part of urban life. Some opinions reveal that with the development of modern markets, traditional markets have become increasingly marginalized. Badung Market is a traditional market located in the center of Denpasar City, Jalan Gajah Mada. The existence of Badung Market as a public space is also known as an icon or identity for the City of Denpasar. Maintaining the social life in Badung Market which is created by the existence of traditions in business life in the Badung Market environment which is the basis for traders to act in selling daily at Badung Market. The purpose of this study is to determine the existence of the Badung Market in Denpasar City. This study uses a mix method that combines quantitative methods with qualitative methods using qualitative methods which are more dominant than quantitative methods. Through qualitative data collection it is processed into quantitative, from quantitative analysis then the findings are explained or interpreted. The research approach used is a case study or case study, this case study approach is used to understand the conditions of the existence of the Badung Market in a social setting in Denpasar City. The efforts of traders to maintain social capital consisting of norms, trust, and bargaining can strengthen loyal networks of market visitors to keep shopping in traditional markets so as to maintain the existence of traders and the existence of traditional markets. From the many determinants of the existence of traditional markets, it can be concluded that the key indicator determining the existence of traditional markets lies in social capital because of its large role.
Performance of Park as Public Space on the Needs, Availability, and Affordability of Services in Salatiga City (Study: Pancasila Park, Tingkir Park, Bendosari Park, and Sidomukti Park) Rosdiana Utami, Martha; Setiawan, Bakti
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.8547

Abstract

Park as a public space is widely recognized in the global agenda to meet the targets of sustainable development goals in SDGs 3 and SDGs 11 to make cities and settlements healthy, inclusive, resilient and sustainable through the provision of Green Open Space (GOS). The commitment of Indonesian Government related to GOS is stated in the laws, the standard states that GOS in urban areas is 30% of the total area in which 12.5% is contained as a park in every settlement scale. Currently, Salatiga City has 4 parks with an average area of below 24,000 m2 and there are several residence and settlement-scale parks with an area below 250 m2. The purpose of this study is to determine park quantity against the needs, availability, and affordability. This study used a Geographic Information System (GIS) approach with a network analysist. Data collection method used questionnaire, observation and document review. The study showed (1) Based on the comparison between the existing needs and conditions of parks from 23 sub-districts, there were 9 sub-districts that had not met it 2) Based on the network analysis, the service affordability of 4 parks was only 57.53% of the urban area that had been served by parks, most of the areas in Argomulyo District had not been served. This study is a new study on park performance assessment with spatial analysis so future park development prioritizes areas that have a value gap between existing needs and conditions and have not been afforded by park service areas. The results of this study can be taken into consideration in the future development of park with a comprehensive analysis and database.
Community of Analysis Mitigation and Adaptation to the Flood Disaster Overload of Lake Tempe, Wajo Regency Muhammad Reza, Andi; Chaerul, Muhammad; Gusty, Sry
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.8143

Abstract

In South Sulawesi, Wajo Regency is one of the areas prone to flooding during the rainy season. Floods that occur in the area cause inundation. The inundation that occurred was caused by the overflow of Lake Tempe. This research was conducted in Laelo Village, Tempe District, which is located around the Tempe Lake Coast. This location was chosen purposively with the consideration that the area has become a frequent flood in the western part of the kelurahan (the part near the lake). The village has a low contour in the west and high in the east. The research design is descriptive and qualitative which aims to describe the state or status of the phenomenon. The purpose of the research is to analyze the forms of adaptation and mitigation that will be carried out by communities in flood-affected areas. This research uses field surveys, in-depth interviews, making field notes, and documentation. The data collection method was carried out using purposive sampling because the desired sample in the study was only people living in the coastal area of the lake, namely in Laelo Village which was only affected by flooding, not the entire Laelo Village community. Data analysis techniques in qualitative descriptive research are carried out with interactive analysis in the form of cycles. Data analysis was carried out simultaneously with the implementation process of data collection. The results of interviews with the community show that they understand that flooding is an ordinary natural phenomenon which is an overflow of a lake, but they do not know why there is a flood. Some people who live on the shores of the lake feel that almost every year they are exposed to floods from the lake. Where the form of adaptation they do is to raise the pole of the house and prepare a boat that is moored under the house to be used as a means of transportation in the event of a flood. Several forms of mitigation that have been carried out are water hyacinth retaining embankments, and making taller bridges with concrete connecting roads from house to house. Information has been found regarding evacuation signs with the evacuation route installed, the mosque is used as a place to disseminate information related to the incident and development of the flood. It is better to form a disaster-resilient village in the area to create an area that is more prepared to face disasters.

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