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All Journal Jurnal Teknik Sipil dan Perencanaan Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Aplikasi Teknik Sipil Jurnal Syntax Transformation jurnal syntax admiration
Emma Patricia Bangun
Program Studi S2 Teknik Sipil, Universitas Sumatera Utara
Aerospace Engineering Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences Other

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Analisa Tulangan pada Blok Angkur Jembatan Gantung dengan menggunakan Ansys Indra Jhon Fischer; Johannes Tarigan; Emma Patricia Bangun
Jurnal Syntax Transformation Vol 3 No 12 (2022): Jurnal Syntax Transformatin
Publisher : CV. Syntax Corporation Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/jst.v3i12.651

Abstract

The strength of the anchor block structure in the suspension bridge is very dependent on its weight to be able to bear the tensile load of the backstay cable. Therefore, it is necessary to have dimensions large enough to withstand the tensile force. Concrete has good compressive strength but does not have good tensile strength, the tensile strength of concrete is only about 10%-15% of its compressive strength. Therefore, in planning anchor blocks, anchor blocks are needed making of steel that has high yield and fracture stresses and is planted in anchor concrete blocks to withstand the force before the tensile stresses are transferred to the concrete blocks. In this paper, steel H 300.300.10.15 is used as steel anchors embedded in concrete blocks. The purpose of this study was to obtain the stress value that occurs in the anchor block using the Ansys assistance program, obtain the appropriate reinforcement distance in the maximum tensile area (critical area), and obtain a graphic description of the influence of the anchor structure geometry due to the load from the backstay cable. This research was conducted using a numerical study using the SAP 2000 assistance program to calculate the forces in the entire suspension bridge structure, then using the Ansys analysis assistance program to obtain the tensile stress that occurs in the anchor block which is also modeled in Ansys with boundary conditions that are close to the existing conditions in the field. The results of Ansys analysis show that the maximum tensile stress in H profile steel 300.300.10.15 is 73.27 MPa and the maximum tensile stress in concrete is 1.26 MPa. The value of 1.26 MPa is still within a safe limit because the tensile stress is still below the allowable tensile stress for the concrete of 2.23 MPa. From the results of empirical analysis, the maximum reinforcement space in the critical area is 150 mm, and in the non-critical area, it is 250 mm.
Analisis Destruction Test Tower Sutet dibandingkan dengan Software Ms Tower dan SAP 2000 Eko Bayu Aji; Johannes Tarigan; Emma Patricia Bangun
Jurnal Syntax Admiration Vol. 4 No. 2 (2023): Jurnal Syntax Admiration
Publisher : Syntax Corporation Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/jsa.v4i2.531

Abstract

The transmission line system which is currently growing rapidly in Sumatra, requires a reliable interconnection network to meet the electricity demand for the West Sumatra region. PT. PLN as a provider of electricity businesses in Indonesia conducted planning and destruction tests to design a new model Extra High Voltage Transmission Line (SUTET) tower with specification of 66.6 meters height, slim type tower, 275 kV, lattice BB+15, quadrapole zebra (435/55 mm2) 2 cct. This research aims to study tower collapse behavior caused by working loads, analyze and compare the suitability level of tower deformation and natural frequency among MS Tower, SAP 2000 space truss analysis, SAP 2000 space frame analysis with destruction test results. SAP 2000 space frame deformation analysis shows that the tower is unstable in the Leg section. The analysis of natural frequency and the mode shape in the SAP 2000 space frame analysis is close to the value of the natural frequency destruction test with a deviation of 30%. The tower collapse occurred due to imperfection geometry on the legs section, resulting in a global collapse. Improvements in the form of adding equal angle to the hip bracing were carried out, the result was able to withstand a load case load of 9870 up to 100%. Space frame analysis on SAP 2000 is closer to MS Tower, this can be seen from the deformation and natural frequency values that approach each other from the two analyses.
ANALISIS PREDIKSI KERUSAKAN PERKERASAN LENTUR BERBASIS IRI (INTERNATIONAL ROUGHNESS INDEX) DENGAN METODE IRMS-V3, RONET Sarah Maghfirah; Muhammad Ridwan Anas; Emma Patricia Bangun
Jurnal Syntax Transformation Vol 4 No 3 (2023): Jurnal Syntax Transformation
Publisher : CV. Syntax Corporation Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/jst.v4i3.704

Abstract

The condition of road pavement is going to decrease during its service life. To keep a pavement functioning, maintenance must be continuously performed. However, the maintenance that has been carried out so far has not been carried out optimally because the budgeting system is still carried out annually based on the results of a road condition survey. The preparation of the budget is carried out annually by BBPJN SUMUT as the relevant stake holder, based on the FWD value with a back calculation program. This causes funding to become unsustainable so that it affects unsustainable handling as well. There are several methods for calculating predictions of future damage values ​​including IRMS-V3 and RONET. Both have a basis for calculating the value of IRI as the main variable in predicting damage. The purpose of this study is to use both methods and compare them to predict IRI values, traffic growth values, and also the remaining planned life values ​​in order to obtain a funding/budget planning scheme and the right type of treatment. The type of data used is secondary data sourced from North Sumatra BBPJN. The analysis is carried out by calculating the IRI value, traffic volume, and the remaining planned life for the next 5 years. Based on the results of the analysis obtained, road damage will occur more quickly using the RONET method. Road maintenance funds resulting from the IRMS-V3 method are more economical. Then validated using statistical t test. The results show that there is no difference in the average predicted IRI value, but there is a difference in the average predicted RSL value for the two methods
Pemodelan Kondisi Perkerasan Jalan dengan Metode Probabilistik Rantai Markov Edison Pardamean Togatorop; Ahmad Perwira Mulia Tarigan; Emma Patricia Bangun
Jurnal Syntax Admiration Vol. 4 No. 3 (2023): Jurnal Syntax Admiration
Publisher : Syntax Corporation Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/jsa.v4i3.553

Abstract

Road pavements are an important part of transportation infrastructure and require regular maintenance. This study aimed to model the condition of road pavement by the probabilistic method of Markov chains. The method used in this study is a literature study and data collection from a survey of road pavement conditions in the field. Data analysis was performed using the Markov chain probabilistic method, which can be used to model changes in pavement conditions over time. The results showed that the Markov chain probabilistic method can be used to model changes in pavement conditions with high accuracy. This method can also be used to make predictions of future pavement conditions and determine the right time to perform maintenance and repairs. The study recommends using the Markov chain probabilistic method as a tool to model pavement conditions and make appropriate maintenance and repair decisions. Thus, it is expected to increase the effectiveness of road pavement management and extend the service life of road pavement.
Modifikasi Struktur Jetty Pelat Beton Pracetak Konvensional menjadi Pelat Beton Pracetak Hollow Core Slab Indra Fischer; Johannes Tarigan; Emma Patricia Bangun
Jurnal Syntax Admiration Vol. 4 No. 3 (2023): Jurnal Syntax Admiration
Publisher : Syntax Corporation Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/jsa.v4i3.555

Abstract

The wharf is where the ships are moored in the harbour. In addition, the pier is also the place where loading and unloading of goods takes place and passengers boarding and falling from and to the ship. The wharf is also the activity location for refueling ships, supplying ships with drinking water, clean water, and arranging channels for dirty/waste water to be further processed at the port. So that optimum planning is needed so that the performance of the building can meet safety and comfort standards This research modifies conventional precast floor slabs into hollow core slab precast slabs with 2 span variations. Dead loads are calculated based on specific gravity, live loads and traffic loads are calculated by "Loading for Bridges" (SNI 1725-2016), crane loads use the Ship to Shore Gantry Cranes Brand Liebherr specifications with a capacity of 50 tons, ship berthing loads and mooring loads ships are calculated based on the Technical standards and commentaries for port and harbor facilities in Japan, OCDI, 2020, while earthquake loads are calculated by "Bridge planning against earthquake loads" (SNI 2833:2016). Steel piles are calculated by "specifications for structural steel buildings" (SNI 1729:2015) and reinforced concrete structures are calculated by “Structural concrete requirements for buildings and explanations” (SNI 2847 2019). Structural analysis for structures is carried out using the help of SAP2000 software. From the research, it was obtained the results of modification of conventional precast floor slabs with hollow core slab precast floor plates with a span of 5.2 meters and a thickness of 350 mm. is an increase in the iron ratio of 38.57% and a decrease in the shear capacity of the punch by 56.57%. For a span of 10.4 meters, a plate with a thickness of 500 mm was used so that the result was an increase in the ratio of iron by 114.60% and a decrease in the shear capacity of the punch by 74.06%.
ANALISIS PENGARUH KEPUASAN PENUMPANG ANGKUTAN MASSAL BERBASIS JALAN PERKOTAAN TERHADAP LOYALITAS PENUMPANG (STUDI KASUS : TRANS METRO DELI) Sekula BR Sinuraya; M. Ridwan Anas; Emma Patricia Bangun
Jurnal Syntax Admiration Vol. 4 No. 8 (2023): Jurnal Syntax Admiration
Publisher : Syntax Corporation Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/jsa.v4i8.684

Abstract

Road-based mass transit systems or commonly referred to as Bus Rapid Transit (BRT) are currently experiencing quite rapid development in various countries including Indonesia. At the end of 2020 the Government has inaugurated urban road-based mass public transportation with the Buy The Service (BTS) Service Scheme in 5 (five) major cities including the city of Medan. Evaluation or strategy must continue to be carried out so that this BTS mode can continue to be sustainable. One of the steps that can be taken is to examine the level of satisfaction and loyalty of current users to continue using the BTS mode. This underlies this research to analyze the level of passenger satisfaction of the Trans Metro Deli Bus and to analyze the effect of passenger satisfaction on the loyalty of the Trans Metro Deli Bus passengers. The Importance Performance Analysis (IPA) Method is used to analyze the satisfaction level of Trans Metro Deli Bus passengers because this method can be used to evaluate and design management from the results of the analysis of service user perceptions regarding the suitability between expectations and quality received. While the Partial Least Square – Structural Equation Modeling (PLS – SEM) Method is used to analyze the effect of passenger satisfaction on passenger loyalty because this method can be used to estimate model relationships. This analysis method uses Smart PLS software. Through measurements using the IPA method, the results show that the highest level of passenger satisfaction is found in the safety attribute (92.59%), then the safety attribute (90.54%), and comfort (91.11%). All three are included in the achievement quadrant that must be maintained, and the attributes of equality (87.24%) and regularity (87.74%) are included in the low priority quadrant while the affordability attribute (84.79%) is included in the quadrant which is the main priority for improvement . Meanwhile, if analyzed per each corridor, in the Medan Tuntungan – Merdeka Square corridor, the affordability attribute is included in the low priority quadrant because in terms of quality it is still low, but expectations are also low. And when analyzed on a job basis, the regularity attribute is included in the top priority to be improved. The results of the analysis of the effect of passenger satisfaction on passenger loyalty using the PLS-SEM method concluded that the effect of passenger satisfaction on passenger loyalty was significant with an influence value of 0.647 and the direction of the relationship between the two variables was positive.
Analisis Frekuensi Alami dengan Undamped-Degree of Freedom System pada Jembatan Sei Wampu Ainil Mardhiyah; Johannes Tarigan; Emma Patricia Bangun
Jurnal Aplikasi Teknik Sipil Vol 21, No 4 (2023)
Publisher : Departemen Teknik Infrastruktur Sipil Institut Teknologi Sepuluh Nopember Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j2579-891X.v21i4.15128

Abstract

Natural frequency is one of the factors in bridge construction. Because the natural frequency can be used as an indicator to detect the ability of the bridge, including the ability to withstand resonance. In addition, the natural frequency is also a way to analyze damage that will or has already occurred to a bridge. One of the analytical methods that can be used to analyze natural frequency values is the Undamped-Degree of Freedom. The results of this study indicate that the natural frequency value of the Sei Wampu Bridge has a value of 10.97 rad/s for the first mode, 18.06 rad/sec for the second ,mode and 20.34 rad/sec for the third mode. From the results of this analysis, it can be seen that the natural frequency value will increase as the bridge mode increases.
Numerical study of steady pipe flows and head loss coefficients Bangun, Emma Patricia; Mahdi, Nabil
Jurnal Teknik Sipil dan Perencanaan Vol 26, No 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.48630

Abstract

The study concerns steady pipe flows within 90o-bend and T-junctions, the head loss coefficients and the physical mechanisms responsible for the energy loss. Numerical viscous flow modelling based on SimpleFOAM solver were implemented in the study. Although secondary flow acts as the mechanism of energy loss in both the bend and in the branch flow of T-junction, the head loss coefficient in the former more critically depends on Reynolds (Re) number. This is supported by the comparison of the streamline fields and the radially varying profiles of the pressures from both cases. The location of flow separation prior to the secondary flow in the bend changes with Re number unlike the fixed location at the junction in the branch flow. The study confirms a practical implication related to the dependence of the head loss coefficients for pipe with 90o-bend and T-junction on flow velocity in an analysis of pipe network.
Analisis pengaruh bentuk model breakwater-integrated Oscillating Water Column Bangun, Emma Patricia; Murniza, T.
Jurnal Aplikasi Teknik Sipil Vol 22, No 3 (2024)
Publisher : Departemen Teknik Infrastruktur Sipil Institut Teknologi Sepuluh Nopember Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j2579-891X.v22i3.20268

Abstract

Oscillating Water Column adalah jenis konverter energi gelombang yang memanfaatkan gerakan naik turun kolom air internalnya akibat beban dinamik gelombang laut. Ada dua jenis model yang dibahas dalam studi ini, yaitu bentuk konvensional (L-OWC) dan U-OWC. Simulasi numerik untuk kedua model OWC tersebut menggunakan Computational Fluid Dynamics dan OpenFOAM solver. Perbandingan hasil elevasi muka air teoritis dengan tangki gelombang numerik melalui solver tersebut membuktikan validitas pemodelan numeriknya. Studi ini menemukan bahwa model L-OWC memiliki performa yang lebih baik dari segi nilai RAO dan efisiensi hidrodinamisnya. Namun, bentuk kolom air tidak terlalu mempengaruhi koefisien refleksi dalam kondisi resonansi. Simulasi numerik kedua model OWC untuk kondisi perairan laut Belawan juga telah dilakukan dan mengindikasikan hal yang sama. L-OWC memperoleh nilai efisiensi hidrodinamik sebesar 81.97% sedangkan U-OWC bernilai 10.8%.
Analisa Kinerja Sistem Distribusi Air Bersih PDAM Tirtanadi pada Spam Offtaker Sumarsono Daerah Pelayanan Sei Agul dan Diski Kecamatan Helvetia (Studi Kasus: Sei Agul-Diski Kecamatan Medan Helvetia) Purba, Jonny Hasael; Bangun, Emma Patricia; Tarigan, Ahmad Perwira Mulia
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v10i7.60199

Abstract

Air digunakan sebagai kebutuhan vital untuk konsumsi dan sanitasi umat manusia, untuk proses produksi berbagai barang industri, untuk produksi makanan dan kebutuhan lainnya. Air bersih harus memenuhi persyaratan kuantitas, kontinuitas dan kualitas. Beberapa permasalahan penyediaan air bersih di kota besar seperti Kota Semarang yaitu kekurangan debit air, aliran air tidak kontiniu, penyelesaian pengaduan masyarakat kurang memuaskan. Di Kota Pontianak, masyarakat mengalami layanan kurang memuaskan dari segi debit air, tekanan air, kontinuitas aliran dan kualitas air dan di Kota Jakarta yaitu kualitas air yang keruh, bau, kotor, tekanan air tidak stabil. Hal yang sama ditemukan di lokasi penelitian yaitu Kecamatan Medan Helvetia yang dilayani oleh PDAM Tirtanadi Cabang Sei Agul-Diski yaitu kontinuitas aliran, kualitas air dan kekurangan debit. Penyediaan air di wilayah tersebut didukung oleh SPAM Offtaker Sumarsono dengan kapasitas aliran 450 liter/detik. Indikator kinerja jaringan meliputi tingkat efisiensi dan keefektifan dari suatu jaringan air bersih yang diberikan kepada aspek khusus dari aktifitas jaringan dan tujuan sistem (konsumen) yang meliputi Tingkat Ketersediaan (Avalaibility), Kualitas kinerja jaringan (Quality) dan Kepuasan Pelanggan (Costumer Satisfaction). Tingkat ketersediaan diukur indeks unjuk kerja suatu jaringan distribusi dinilai dari tingkat keandalan (reliability), tingkat kerawanan (vulnerability) dan tingkat kelentingan (resiliency). Kinerja jaringan diukur dengan menggunakan software Epanet 2,2 dan kepuasan pelanggan diukur dengan Importance Performance Analysisi (IPA). Keandalan (reliability) pada sistem ini 63% atau belum andal karena masih dibawah 95, diperoleh nilai kelentingan (resiliency) 0,23 atau relatif kecil sehingga dibutuhkan waktu cukup lama untuk Kembali dalam keadaan tidak gagal, dan kerawanan (vulnerability) menunjukkan nilai defisit yang maksimum yaitu 0,02% hingga 86,05%. Hasil analisa Epanet 2,2 diperoleh kecepatan di seluruh pipa distribusi primer 1,04 – 3,11 m/detik atau masih berada diambang batas yang disarankan yaitu 0,3 – 6 m/detik. Sedangkan untuk nilai tekanan ditiap-tiap taping/junction berada diantara 42,09 – 58,04 m atau berada pada ambang batas sesuai ketentuan yaitu 15-60 m. Analisis IPA terhadap 100 responden menunjukkan terdapat indikator aspek operasional yang penting menurut pelanggan namun kenyataan/kinerja yang diterima belum sesuai harapan yaitu kualitas air distribusi yang terdiri dari indikator air bersih tidak berwarna, tidak berbau dan tidak berasa, air bersih tidak mengandung mikroorganisme dan partikel partikel kecil, air bersih tidak terasa lengket dan licin, air tidak keruh, air tidak nengandung lumpur dan endapan serta kontinuitas air yang terdiri dari indikator air bersih mengalir selama 24 jam dan debit air sama sepanjang hari.
Co-Authors Ahmad Perwira Mulia Tarigan Ainil Mardhiyah Edison Pardamean Togatorop Eko Bayu Aji Hasbi, Muhammad Taufik Indra Fischer Indra Jhon Fischer M. Ridwan Anas Mahdi, Nabil Muhammad Ridwan Anas Mulia, Ahmad Perwira Murniza, T. Purba, Jonny Hasael Sarah Maghfirah Sekula BR Sinuraya Tarigan, Ahmad Perwira Mulia TARIGAN, Johannes