PRESUNIVE CIVIL ENGINEERING JOURNAL
PRESUNIVE CIVIL ENGINEERING JOURNAL [ISSN2987-145X (online)] is a scientific publication media for researchers, students as well as practitioners in the area of expertise of Structural Engineering, Construction Engineering & Management, Geotechnical Engineering, Water Resources Engineering, and Transportation Engineering. The Journal publishes in April and October under the supervision of the Civil Engineering Study Program, President University.
Articles
30 Documents
<![CDATA[Compressive Strength of Concrete Containing Merapi Cold Lava Sand ]]>
<![CDATA[Bungalolon, Theo Trichius Cilvin Peden]]>;
<![CDATA[Bali, Ika]]>
<![CDATA[ PRESUNIVE CIVIL ENGINEERING JOURNAL Vol 2, No 1 (2024) ]]>
Publisher : <![CDATA[President University ]]>
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DOI: 10.33021/pcej.v2i1.5147
<![CDATA[Reports from the literature state that Merapi sand is a good material as a filler in concrete to replace some of the fine aggregate because it has a high content of silica (SiO2) and the sharp edges of the silica form angular particles. The potential function of Merapi sand as a filler and its use as a waste material prompted this study to be carried out. The objective of this study is to determine the potential of Merapi Sand in terms of concrete compressive strength as an effective replacement for local sand in the Cikarang area. In this study, Merapi cold lava was crushed to the size of fine aggregate by passing a 2.26 mm sieve. The percentages of Merapi sand used as a partial substitute for local sand are 10%, 20%, and 30%. The results of this study show that Merapi sand concrete (MSC) 30% at age of 7 days and 28 days provides the highest increase in compressive strength of 17.4% and 15.8% respectively compared to normal concrete (NC). The addition of a percentage of Merapi sand as a partial replacement for local sand tends to increase the compressive strength of the concrete. Based on this study, Merapi sand has the potential to be used as a partial replacement for local sand in increasing the compressive strength of concrete and reducing cold lava waste.]]>
<![CDATA[Deviations Due to the Discrete Modeling of the Structures ]]>
<![CDATA[Hariandja, Binsar H.]]>;
<![CDATA[Bali, Ika]]>
<![CDATA[ PRESUNIVE CIVIL ENGINEERING JOURNAL Vol 1, No 1 (2023) ]]>
Publisher : <![CDATA[President University ]]>
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DOI: 10.33021/pcej.v1i1.4241
<![CDATA[Real existing structures are generally complicated in geometry that might make them unsuitable or difficult forthe analyses. Several assumptions or simplifications are usually made by the practitioners to make them simpler andmay be analyzed in ease. The assumptions and/or simplifications might make the analyses much easier; however,they might create some deviations from the true behavior of the structures, which are in fact, are not known preciselyto the analysts. The paper discusses some examples for simplifications in the analysis or the structural systems. Theexamples include the types of the simplifications, and the deviations that caused by them. The types ofsimplifications are in the case of material behavior, the geometry of the system, an in the case of connectivity of thestructural components. The results signify the importance of wisdom in the setting of the simplifications and theassumptions to make the analyses easier but with dependable results.]]>
<![CDATA[Compressive Strength of Concrete Containing Recycled Glass Powder ]]>
<![CDATA[Nugraha, Bimantara Putra]]>;
<![CDATA[Sudjatmiko, Eddy Triyanto]]>;
<![CDATA[Bali, Ika]]>
<![CDATA[ PRESUNIVE CIVIL ENGINEERING JOURNAL Vol 1, No 1 (2023) ]]>
Publisher : <![CDATA[President University ]]>
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DOI: 10.33021/pcej.v1i1.4242
<![CDATA[Glass bottle waste takes a million years to decompose. Recycling is the best option to solve this problem. Onealternative is to use recycled glass in the form of powder as a material for making concrete. This study proposes theuse of recycled glass powder as a concrete material to partially substitute fine aggregate. This study aims todetermine the effect of glass powder as a partial substitute for fine aggregate on the compressive strength of concrete.Partial substitution of fine aggregate was selected with a percentage of 5%, 10%, and 15%. Standard cylindricalspecimens aged 28 days used in compressive strength testing in this study. Then, the test results of concretecontaining recycled glass powder compared to ordinary concrete. The test results show that the compressive strengthof concrete containing 15% recycled glass powder gives an average compressive strength of 35.57 MPa which isslightly higher than the compressive strength of normal concrete of 35.10 MPa. This study found that the use of glasspowder as a substitute for fine aggregate can be used as a substitute for normal concrete in terms of compressivestrength and reduce glass waste.]]>
<![CDATA[Efficiency of the Use of Computer Memories and Execution Time in Structural Analysis ]]>
<![CDATA[Hariandja, Binsar H.]]>
<![CDATA[ PRESUNIVE CIVIL ENGINEERING JOURNAL Vol 1, No 1 (2023) ]]>
Publisher : <![CDATA[President University ]]>
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DOI: 10.33021/pcej.v1i1.4243
<![CDATA[The use of computer programming provides accurate and speedy analyses of structural systems. The accuracyand the speed of the analysis are due to the novelty of the computer, i.e., the speed in storing and retrieving large sizeof data, and the speed and the accuracy in the numerical computation. However, in old days, due to the limitedstorage capacities of old generations of the computers, and the use of limited main frame computers, used by somany parties, the efficient use of computer memory became an important issue. Moreover, the use of rented base ofcomputer time necessitated the efficient use of computer run time. The paper discusses the efforts to efficiently usethe computer memory and computer run times. These issues seem to remain important issues, even though to date,the tendency is to use of personal computers and laptops instead the use of rented main frame computers.]]>
<![CDATA[Evaluation on Merauke Drainage System in Overcoming Flood-Prone Areas ]]>
<![CDATA[Ramdhani, Bagoes Rezky]]>;
<![CDATA[Pratama, Maryo Inri]]>;
<![CDATA[Wisaksono, Anggoro]]>
<![CDATA[ PRESUNIVE CIVIL ENGINEERING JOURNAL Vol 1, No 1 (2023) ]]>
Publisher : <![CDATA[President University ]]>
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DOI: 10.33021/pcej.v1i1.4244
<![CDATA[Merauke city suffers flooding in almost every rainy season, which endangers the environment and disturbspeople's activities. One of the worst floods happened in 2019, where flooding damaged vegetables and crops, impactedthe city's economy, and later caused economic inflation. Therefore, a study evaluating the drainage system in Meraukecity is needed to overcome this issue. This study was conducted through a field survey and literature study with datathat varies from hydrological, elevation, and hydraulics data. Hydrological data includes yearly rainfall data, andhydraulics data consists of the drainage network and designs. This evaluation will then result in the normalization of adrainage system. This study found that the capacity of the current drainage system is 10.815 m3/s, where this drainagecapacity cannot accommodate the amount of flood discharge plan. Also, the existing drainage system is missing acomponent that was not built in the first place, affecting the drainage's capacity. Therefore, a normalization of thedrainage system is needed to avoid flooding.]]>
<![CDATA[On-Site Earthquake Early Warning System as an Alternative Earthquake Mitigation Solution in Indonesia ]]>
<![CDATA[Bali, Ika]]>
<![CDATA[ PRESUNIVE CIVIL ENGINEERING JOURNAL Vol 1, No 1 (2023) ]]>
Publisher : <![CDATA[President University ]]>
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DOI: 10.33021/pcej.v1i1.4245
<![CDATA[The Banten earthquake, which had a magnitude of 6.6 on January 14, 2022, damaged 3,078 houses. Thatnumber consisted of 395 heavily damaged units, 692 moderately damaged units and 1,991 lightly damaged units(Tempo.co, 2022). The Banten earthquake was a strong earthquake where the magnitude was greater than a scale of5. Damage to houses caused by the earthquake occurred in most single-story houses or low-rise buildings. Given thelarge number of one-story houses that are damaged every time a major earthquake occurs in Indonesia, there needs tobe appropriate mitigation measures to reduce the risk of earthquake disasters, especially for human casualties. AnOn-site Earthquake Early Warning System (On-site EEWS) can be an alternative in reducing victims of the disaster.This earthquake early warning system has sensors that are installed on the site of building houses and can predictstrong earthquake waves that are destructive in nature (S/Secondary Waves) through P/Primary Waves that arriveearly in about 10-20 seconds. This time is sufficient for evacuation for the occupants of a one-story house if the earlywarning alarm is properly responded to. This early warning radius can reach 20 km from the on-site EEWS locationconsidering that this area has relatively the same vibration effect. Currently, Indonesia through the BMKG isdeveloping EEWS as a part of the existing earthquake mitigation system. The purpose of this study is to describe theapplication of an on-site earthquake early warning system as an alternative solution for earthquake mitigation inIndonesia. This study evaluates several EEWS applications in the literature to find the best alternative to be appliedin Indonesia. The critical factors for on-site implementation of the EEWS discussed in this paper are compared withthe Taiwan regional EEWS. Based on the existing validation, the on-site EEWS has an 80% accuracy rate inpredicting the intensity level of a strong earthquake, capable to automatically send an alarm message within 3seconds and providing a warning time of at least 8 seconds before a destructive peak S wave arrives.]]>
<![CDATA[The Effect of Steam Curing on the Early Compressive Strength of Glass Powder Concrete ]]>
<![CDATA[Geovenerdy, Ravelino Hafizh]]>;
<![CDATA[Bali, Ika]]>;
<![CDATA[Sudjatmiko, Eddy Triyanto]]>
<![CDATA[ PRESUNIVE CIVIL ENGINEERING JOURNAL Vol 1, No 2 (2023) ]]>
Publisher : <![CDATA[President University ]]>
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DOI: 10.33021/pcej.v1i2.4690
<![CDATA[Glass bottle waste is non-biodegradable and concerns about its impact on the environment. One alternative is to use recycled glass bottle waste in a form of glass powder as a partial replacement for fine aggregate in concrete. This study compared the glass powder concrete containing 20% glass powder as a partial replacement for fine aggregate treated by steam curing to the normal concrete treated by immersion curing. To obtain a higher early strength, the glass powder concrete will be treated with steam curing method for total duration of 9 hours. The test results showed that glass powder concrete treated with steam curing experienced a significant increase of 40.7% in compressive strength at 1 day of age with a compressive strength of 7.84 MPa compared to normal concrete of 5.56 MPa, an increase of 57.0% at 3 days of age with a compressive strength of 16.88 MPa compared to normal concrete of 10.75 MPa, and an increase of 14.0% at 7 days of age with a compressive strength of 23.86 MPa compared to normal concrete of 20.94 MPa. The results of this study indicated that steam curing has the effect of increasing the early compressive strength of concrete at the age of 1, 3 and 7 days. In addition, the use of 20% glass powder as a partial replacement for fine aggregate can contribute to the utilization of non-biodegradable glass bottle waste.]]>
<![CDATA[Finite Element Analysis of Nonlinear Contact Problems with Mixed Eulerian-Lagrangian Description ]]>
<![CDATA[Hariandja, Binsar Halomoan]]>
<![CDATA[ PRESUNIVE CIVIL ENGINEERING JOURNAL Vol 1, No 2 (2023) ]]>
Publisher : <![CDATA[President University ]]>
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DOI: 10.33021/pcej.v1i2.4417
<![CDATA[This study deals with analysis of structures using mixed Eulerian-Lagrangian description. Apart from generally used Lagrangian description which uses initial configuration as reference, the newly proposed uses one of actual configuration as reference. Therefore, the total displacement is decomposed into two portions, i.e., the portion covering displacement from initial into referential configuration called Eulerian displacement, and the portion covering displacement from referential configuration into current configuration called Lagrangian displacement. The new technique is suitable to be applied to several classes of structures such as frictional contact and tensile structures. Eulerian displacement is used to represent relative displacements between material points paired in a nodal point in which slip mode occurs, while Lagrangian displacement is used to represent mutual displacement of material points paired in a nodal point in which stick mode occurs. The method was applied to certain contact problems, and the results obtained agreed fairly well with existing results found in references.]]>
<![CDATA[Analysis of Ultimate Bearing Capacity of Bore Pile Foundation in High-Rise Building at Pulomas, East Jakarta ]]>
<![CDATA[Wisan, Nathanael Edward]]>;
<![CDATA[Bali, Ika]]>;
<![CDATA[Sudjatmiko, Eddy Triyanto]]>
<![CDATA[ PRESUNIVE CIVIL ENGINEERING JOURNAL Vol 1, No 2 (2023) ]]>
Publisher : <![CDATA[President University ]]>
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DOI: 10.33021/pcej.v1i2.4704
<![CDATA[Soil condition at the Pulomas tower project site with a water level of 17 m below the ground and the hard soil at ground depth of 18 – 22 m, as well as the project location surrounded by houses and office buildings made the choice of bore pile as the foundation in this project. This condition is the background to the need for a bore pile capacity analysis in this tower project. The objective of this study is to analyze the bore pile capacity which is based on Standard Penetration Test (SPT) and Cone Penetration Test (CPT) and to be compared to the interpretation result of static loading test at a tower project location in East Jakarta. The ultimate bearing capacity of bore pile foundation was calculated using Meyerhof method and Reese & Wright method, and static loading test using Chin method. This study indicated that the ultimate bearing capacity using Reese & Wright method is closer to the interpretation result of static loading test from Chin method compared to Meyerhof method.]]>
<![CDATA[Analysis of the Queuing System and the Access Bridge of the Kuningan LRT Station ]]>
<![CDATA[Yogawijaya, Vanogary Eljuvonrodo]]>;
<![CDATA[Prihartono, Prihartono]]>;
<![CDATA[Bangkara, B.M.A.S. Anaconda]]>
<![CDATA[ PRESUNIVE CIVIL ENGINEERING JOURNAL Vol 1, No 2 (2023) ]]>
Publisher : <![CDATA[President University ]]>
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DOI: 10.33021/pcej.v1i2.4711
<![CDATA[LRT or Light Rail Transit is an alternative to mass transportation from the outskirts to the city center, helping to cut travel time and is integrated with public transportation and activity center locations. LRT effectiveness needs to be supported by LRT stations, the factors included are passenger queues and access bridge. This research delves into an analysis of the queuing system and access bridge at Kuningan LRT station, Jakarta, focusing on the expected waiting time in the system (card tapping time) and the queue at the north and south entrances. The research methodology involved a combination of observation and analytical methods, including data collection on the dimension of the access bridge and LRT station and the use of Queuing theory with multiple single servers' models for data analysis. The research findings reveal that during peak hours, with an estimated daily influx of 10,990 passengers arriving at Kuningan LRT and 10,096 departing from it, the average number of people in the queue is less than one person, with no prolonged queues. The analysis of data presented in this study reveals that the design and construction of the Kuningan LRT access bridge align closely with the pertinent development regulations. The study contributes to the knowledge of queuing systems and provides insights into the number of people estimated to be queuing at the Kuningan LRT station and to forecast how many queues may form during peak hours.]]>
