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INDONESIA
MEDIA KOMUNIKASI TEKNIK SIPIL
Published by Universitas Diponegoro
ISSN : 08541809     EISSN : 25496778     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Media Komunikasi Teknik Sipil (ISSN 0854-1809) published twice in a year, in July and December. The article can be product of researches, scientific thoughts or case study, in civil engineering and isn’t formed by politics, commercialism, and subjectivity unsure. This scientific journal contains articles of thought and research results in Civil Engineering that have never been published in scientific journals or other media.
Arjuna Subject : -
Articles 13 Documents
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Search results for , issue "Volume 30, Nomor 2, DESEMBER 2024" : 13 Documents clear
Evaluasi Kinerja Seismik Struktur Menara Sabilulungan 99 Kabupaten Bandung dengan Metode Analisis Statis Nonlinear Pushover Erizal, Erizal; Arrafi, Naufal Rifqi; Mentari, Sekar
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 2, DESEMBER 2024
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i2.65172

Abstract

One of the regions with high earthquake vulnerability is Java Island. The Sabilulungan 99 Tower, located in Bandung Regency, is a tower with a reinforced concrete structure that features a moment-resisting frame system. The structure's period is 2.6 seconds. The mass participation ratio obtained reaches values above 90% in both the x and y directions in the 9th vibration mode. The base shear force obtained when the performance point is reached in the post-elastic analysis is 10,402.90 kN in the x direction and 10,178.88 kN in the y direction. The lateral displacement of the roof in the x and y directions is 568.53 mm and 602.51 mm, respectively, when the structure's performance point is reached. Based on the structural deformation parameters according to FEMA 356 guidelines, the structure's performance level is Life Safety (LS). The structure's ductility in the x and y directions is 1.7 and 2.4, respectively, classifying the structure as having low ductility in the x direction and moderate ductility in the y direction.
Pola Curah Hujan di Provinsi Indonesia Saat El-Nino dan La-Nina: Analisis Periodogram FFT dan Lomb Nugraheni, Melly; Zakaria, Ahmad; Wahono, Endro Prasetyo; Kusumastuti, Dyah Indriana; Herison, Ahmad
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 2, DESEMBER 2024
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i2.65646

Abstract

Indonesia is a country affected by the El Nino and La Nina climate anomalies. The provinces of Aceh, Central Kalimantan, and Maluku are three regions representing parts of Indonesia that have a variety of rainfall distribution and climatic conditions. This research was conducted to determine the influence of the El Nino and La Nina climate anomalies on these three regions by looking at the areas that have a dominant influence due to these climate anomalies. The research used BMKG Indonesia rainfall data with a total of 16 rainfall stations and a data range of 22 years. The methods used for modeling are the Fast Fourier Transform (FFT) and Lomb Periodogram to obtain rainfall spectrum data. Then, the amplitude value was obtained, and a comparison of the data from the two methods was carried out to determine the recurrence value and the area with the highest impact due to climate anomalies. The results of data analysis according to the FFT and Lomb Periodogram showed that the highest affected area was the eastern part of Indonesia, namely Maluku Province, with the dominant frequency according to the FFT method being 5.61 years with a PSD of 7.67 mm2 and the Lomb Periodogram 6.06 years with a PSD of 18.64 mm2. Based on the average PSD value, using both FFT and Lomb Periodograms, it also shows that the influence of El Nino and La Nina is greatest in the eastern part of Indonesia; as you move towards the west, this influence decreases. The smallest influence occurred in western Indonesia. This shows that the influence of ENSO is more dominant than the influence of IODM.
Analisis Metode Penjadwalan pada Proyek Bangunan Gedung: Studi Kasus Metode Line of Balance dan Precedence Diagram Arifuddin, Rosmariani; Fatimah, Andi Nurul; Fadlillah, Muh Rifan
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 2, DESEMBER 2024
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i2.63963

Abstract

The construction industry plays a significant role in a country's economic growth. However, construction projects frequently face challenges in meeting schedule targets. Project scheduling is crucial as it provides insights into enhancing the development process. Various scheduling methods are employed in construction projects, including the line of balance (LoB) method and precedence diagramming. Selecting the appropriate scheduling method impacts the project's timeline. This research aims to analyze the effectiveness of the LoB method and precedence diagramming in building construction projects, with a specific case study of a COVID center. The research method involves collecting project data, including project s-curves. The findings indicate that utilizing both the line of balance and precedence diagram methods can enhance project scheduling by ensuring the continuous allocation of resources.
Pengembangan Model Mikrosimulasi pada Perlintasan Sebidang Kereta Api pada Jalan Perkotaan dengan PTV VISSIM Muharam, Fauzan Rizki; Nugroho, Taufiq Suryo; Weningtyas, Widyarini
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 2, DESEMBER 2024
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i2.63892

Abstract

A level crossing between railways and roads is one of the critical traffic elements in a road network system as it can cause significant delays and long queues, especially when the crossing is part of an urban road network. This study aims to analyze traffic performance at level crossings using a microsimulation approach with the PTV VISSIM software. The model is designed to explicitly simulate the interaction between trains and vehicles by utilizing features such as priority rules, public transport lines, and reduced speed areas, and calibrating it based on field data. This research takes a case study of the level crossing at Jalan Abdul Rahman Saleh – Nurtanio, Bandung City. Data collection was conducted through direct observation via field surveys and data from supporting literature documents. The analysis results indicate that the existing traffic performance is at a Level of Service F, with an average intersection delay exceeding 60 seconds per vehicle. Microsimulation recommends the construction of a grade-separated intersection as a solution to improve traffic performance in the future.
Perilaku Deformasi Tidak Linear SRPMK Baja 8 Lantai Akibat Gempa Faisal, Ade; Putera, Tondi Amirsyah; Efrida, Rizki
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 2, DESEMBER 2024
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i2.62448

Abstract

Simpangan antar tingkat terjadi akibat adanya deformasi rotasi pada titik kumpul sebagai respon dari gerakan tanah akibat gempa. Deformasi rotasi terjadi sebagai akumulasi dari deformasi lentur pada balok dan kolom serta deformasi geser panel zone. Studi ini dibuat untuk mengetahui bagaimana deformasi tidak linear siklik yang terjadi pada elemen balok dan zona panel pada struktur rangka baja akibat gempa. Model adalah SRPMK baja 8 tingkat yang dibangun di atas tanah kelas D dan didesain untuk kategori desain seismik D. Analisa dinamik tidak linear, memakai 20 rekaman gempa dilakukan untuk mendapatkan nilai median simpangan antar tingkat untuk ditentukan kurva kerapuhannya. Hal ini dilakukan untuk mengidentifikasi kapasitas pada kondisi batas LS, CP dan runtuh yang dimiliki oleh model, yaitu deformasi lentur dan geser tidak linear yang terjadi pada elemen balok dan panel zone pada lantai 1 eksterior. Hasil yang diperoleh menunjukkan bahwa deformasi rotasi pada balok akibat lenturan pada akhir getaran gerakan tanah adalah lebih besar bila dibandingkan dengan deformasi rotasi saat simpangan antar tingkat mencapai kondisi LS dan CP pada saat pertama kali. Hal yang sama juga terjadi pada deformasi geser di zona panel yang ditinjau.
Kajian Penambahan Kapur dan Serbuk Marmer Terhadap Kuat Tekan Tanah Lempung Waruwu, Aazokhi; Priyo, Aaron Nicholas; Raymond, Raymond
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 2, DESEMBER 2024
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i2.65445

Abstract

The design of roads and other constructions requires attention to the subgrade. In Indonesia, clay soils are quite common and tend to have low bearing capacity. To increase the bearing capacity of clay soils, it is necessary to carry out soil improvement and stabilization measures. Soil stabilization can be done by adding stabilizing materials such as lime and marble powder. Before stabilizing the soil, it is necessary to test soil characteristics such as testing water content, unit weight, Atterberg limit, specific gravity, sieve analysis and hydrometer. This research was carried out to obtain the most optimum composition of the stabilization mixture. This research used lime additives with compositions of 1.5% and 3%, respectively, marble powder was added with compositions of 3%, 6% and 9%. After that, a compaction test is carried out to determine the optimum water content and maximum dry weight. After getting the results from the compaction test, the soil bearing capacity can be analyzed using the Unconfined Compression Test. The test results showed that the addition of 3% lime and 9% marble powder resulted in a significant increase in compressive strength and shear strength values in clay soil. Closed-molded test specimens show an increasing trend in compressive strength values better than open-molded specimens.
Kajian Evaluasi Perlintasan Sebidang di Jalur Perlintasan Langsung (JPL) di Kota Semarang Budiharjo, Anton; Habibah, Fistirika; Tohom, Frans
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 2, DESEMBER 2024
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i2.65494

Abstract

As a mass transportation system infrastructure, level crossings impact road users, including skidding, roaddamage, and accidents. Based on data from KAI DAOP 4 Semarang, there were 12 accidents at level crossingsin 2023, while in 2024, the number increased to 26, indicating a rise in accident rates. One accident that wentviral on social media occurred in Semarang in 2023, involving a low-bed trailer that got stuck at a levelcrossing. The objective of this study is to analyze and evaluate level crossings, assess their compliance withregulations, and provide recommendations for improvements. This research employs the triangulation method,utilizing data obtained from geometric surveys and an inventory of crossing equipment. The study focuses onlevel-crossing locations JPL 6 Madukoro and JPL 5 Kaligawe in Semarang City. The findings indicate that theexisting conditions do not fully comply with regulatory requirements in terms of facilities and geometricspecifications. Specifically, the Madukoro crossing is constructed at a higher elevation than the surroundingtopography, creating a hump with a height of 86 cm above the road surface and a grade of 12.8%. Thiscondition increases the risk of long vehicles, such as low-bed trailers, getting stuck, potentially leading tosevere accidents. Therefore, it is recommended that regulations concerning level crossings be reviewed andrevised.
Kajian Numerik Perilaku Sambungan Kayu Geser Tunggal Menggunakan Elemen Balok dan Elemen Solid Wijaya, Naga; Suryoatmono, Bambang; Tjahjanto, Helmy Hermawan
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 2, DESEMBER 2024
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i2.61725

Abstract

Modelling single shear wood connection using solid elements is more accurate, especially in simulating the contact between the surface of the lag screw and the surface of the pre-drilled hole, but it is more complicated in terms of geometry and number of nodes. An alternative method is approached by modelling the lag screw as a beam element, with the limitations of modelling the contact interaction between the lag screw and timber members. In this study, diameter variations were also modelled to investigate joint behavior. To validate the model accuracy, a modelling was also performed in which the connectors and timber members were all modelled as solid elements and performed theoretical calculations. Numerical analysis was carried out by modelling the connection specimens using the finite element method in the ABAQUS software. The results showed that the connection capacity between solid element and beam element modelling are quite similar. The accuracy of modelling the lag screw as a beam element is lower at larger diameters and requires a method to correct the results.
Pengaruh Substitusi Agregat Halus dengan Limbah Ban Karet terhadap Karakteristik Mekanik dan Kemampuan Absorpsi Suara pada Panel Dinding Beton Sumarni, Sri; Yusti, Adi Putra; Habsya, Chundakus
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 2, DESEMBER 2024
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i2.65498

Abstract

Penelitian ini mengeksplorasi penggunaan limbah ban karet sebagai pengganti agregat halus pada panel dinding beton untuk mengurangi pencemaran lingkungan dan mendorong bangunan berkelanjutan dengan sifat ringan dan menyerap suara. Penelitian ini bertujuan untuk mengevaluasi pengaruh penggantian limbah ban terhadap berat isi, kekuatan lentur, dan koefisien penyerapan bunyi, sekaligus mengidentifikasi persentase optimal untuk karakteristik yang diinginkan. Percobaan memvariasikan kandungan ban karet (5%, 10%, 15%, 20%, dan 25%) sebagai variabel bebas, dengan berat jenis, kuat lentur, dan serapan bunyi sebagai variabel terikat. Hasil menunjukkan bahwa peningkatan persentase limbah ban akan menurunkan berat jenis beton, dengan berat jenis beton minimum sebesar 1311,63 kg/m³ pada penggantian 25%. Namun, kandungan ban yang lebih tinggi akan melemahkan kekuatan lentur, yang mencapai puncaknya pada 3,02 N/mm² dengan penggantian 5%. Di sisi lain, kinerja akustik meningkat dengan lebih banyak kandungan karet, mencapai penyerapan suara optimal pada penggantian 15%, dengan koefisien maksimum 0,22324 pada 974 Hz.
Model Respons Seismik Tanah di Kecamatan Selebar Akibat Perambatan Gelombang Gempa Satu Dimensi Fahrezi, Zhehan; Misliniyati, Rena; Amri, Khairul; Mase, Lindung Zalbuin; Hardiansyah, Hardiansyah
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 2, DESEMBER 2024
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i2.64462

Abstract

Penelitian ini dilakukan untuk mengetahui respons lapisan tanah akibat perambatan gelombang gempa di Kecamatan Selebar Kota Bengkulu. Studi ini diawali dengan investigasi di lapangan pada enam titik. Analisis respons seismik dibangun berdasarkan model perambatan gelombang satu dimensi dengan metode ekivalen linier dan non-linier. Gelombang gempa terskala Bengkulu-Mentawai tahun 2007 diterapkan sebagai gelombang input. Perbandingan PGA, percepatan respon spektra, dan faktor amplifikasi yang dihasilkan dari kedua metode disajikan dalam penelitian ini. Nilai PGA yang dihasilkan dengan metode ekivalen linier lebih besar sekitar 5% - 30% dari metode non-linier. Faktor amplifikasi yang dihasilkan dengan metode ekivalen linier mengalami penguatan lebih besar sekitar 3% - 30% dari metode non-linier. Percepatan spektra secara umum telah melewati desain seismik yang berlaku pada pada periode pendek, dengan nilai sebesar 1,2g – 2,1g untuk metode ekivalen linier dan 1,1g – 1,6g untuk metode non-linier. Maka perlu adanya pembaharuan desain seismik untuk perencanaan bangunan gedung di Kecamatan Selebar Kota Bengkulu.

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