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MEDIA KOMUNIKASI TEKNIK SIPIL

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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 isnâ€™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.

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Search results for , issue "Volume 28, Nomor 1, JULI 2022" : 17 Documents clear

Kinerja Ketidakberaturan Kekakuan Struktur Menggunakan Metode DDBD dan CSM Ika Nurelisa; Amalia Amalia
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 1, JULI 2022
Publisher : Department of Civil Engineering, Diponegoro University

Konsep perencanaan bangunan tahan gempa saat ini mengarah pada konsep berbasis kinerja (performance based design). Dalam penelitian ini digunakan metode direct displacement based design (DDBD) untuk mendesain beban gempa dan capacity spectrum method (CSM) untuk menentukan level kinerja bangunan dengan menggunakan analisis pushover. Tujuan dari penelitian ini adalah untuk menganalisis dan membandingkan kinerja bangunan beraturan dengan bangunan yang memiliki ketidakberaturan kekakuan tingkat lunak. Bangunan yang ditinjau dalam penelitian ini terdiri dari 3 variasi bangunan dengan jumlah 8 lantai. Variasi A bangunan beraturan, Variasi B bangunan dengan ketidakberaturan kekakuan tingkat lunak pada lantai 1, dan Variasi C bangunan dengan ketidakberaturan kekakuan tingkat lunak pada lantai 5. Nilai perpindahan maksimum terjadi pada bangunan Variasi C, arah X sebesar 0,281 m dan arah Y sebesar 0,304 m. Mekanisme terjadinya sendi plastis pada Variasi A, B, dan C sesuai dengan konsep desain strength column weak beam. Keruntuhan paling awal terjadi pada bangunan Variasi B dan paling akhir terjadi pada bangunan Variasi A. Kinerja struktur bangunan Variasi A, B dan C menggunakan metode CSM berada pada level Damage Control.

Inovasi Metode Konstruksi Prefabrikasi untuk Efisiensi Biaya dan Waktu pada Proyek Gedung Tinggi Perum Perumnas Yusra Aulia Sari; Yanweri Dinata
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 1, JULI 2022
Publisher : Department of Civil Engineering, Diponegoro University

Prefabrication has been widely used in construction projects. Prefabrication improves construction speed, architectural quality, material efficiency, and worker safety while limiting construction's environmental impact than conventional construction practices built on site. This research explains the advantages of prefabricated construction methods and offers an alternative method for innovation for the High Rise Building Project of Perum Perumnas. The prefabrication method is an alternative solution based on the SWOT analysis, and software for modeling and structural design is STAAD.Pro V8.I by Bentley System, inc. The research results have shown that prefabrication methods in the High Rise Building Project of Perum Perumnas can save 7% (deviation = 868.47 million) more than the current construction method (conventional). In terms of time, the prefabrication method is faster than traditional methods, with a time difference of 371 days. The estimated time required to complete upper structure work using conventional methods is 557 days. In comparison, the time needed to complete upper structure work with prefabricated methods is only 186 days, assuming the working time is eight hours per day. And the risk analysis is generally mentioned. Therefore, based on the calculation results, it can be concluded that the prefabrication method can increase the number and quality of development production in the High Rise Building Project of Perum Perumnas.

Penerapan Value Engineering Pekerjaan Balok, Kolom Dan Pelat Lantai (Studi Kasus: Gedung Perpustakaan Daerah Kabupaten Bengkalis) Monika Natalia; Zulfira Mirani; Jufrinal Syahputra
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 1, JULI 2022
Publisher : Department of Civil Engineering, Diponegoro University

Cost construction must be planned efficiently and optimally. Value Engineering is planned approach with the aim of identifying and streamlining unnecessary costs with functional limitations and work quality (Firda, 2018). In reality, structural work using concrete estimated to over design, overcost (Apriani, 2020). This research was Bengkalis Public Library project. This building consists of 3 floors with an area of 2250 m2. The structure of beams, columns and slabs reinforced concrete. Dimensions of column 40x40 cm, main beam dimensions 40x60 cm, joist beam dimensions 25x40 cm, roof beam dimensions 30x50 cm, and slabs 15 cm with D10-100. Cost of reinforced concrete Rp. 4.297.170.000,00. In value engineering, the conversion of reinforced concrete to profile steel, cost of profile steel Rp. 4.089.619.000,00. it is obtained that the column uses WF 250.250.11.11, WF 400.200.7.11 main beam, WF 200.150.6.9 joist beam and WF 250.125.6.9 roof beam and floor slabs are converted to flourdack plate using 0.75 thickness bondack mm with wiremesh reinforcement M10-150. Cost ratio reinforced concrete and steel profiles is Rp. 207,551,000, -. Steel profiles is 5.075% cheaper than reinforced concrete structures.

Pendekatan Statistik Model Hubungan Tegangan-Regangan Beton dengan Agregat Daur Ulang Namira Risza Pasya; Yunita Idris; Abdullah Abdullah
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 1, JULI 2022
Publisher : Department of Civil Engineering, Diponegoro University

Penggunaan agregat daur ulang menjadi salah satu alternatif solusi untuk permasalahan ketersediaan agregat alam sebagai bahan beton. Tujuan dari penelitian ini adalah untuk menganalisis kurva hubungan tegangan-regangan tekan beton berdasarkan data studi literatur dan menggunakan pendekatan statistik. Dalam penelitian ini ditinjau kuat tekan (f’c), modulus elastisitas (Ec), dan regangan (εo) sebagai dasar analisis. Penelitian menggunakan 124 data dari 25 jurnal peneliti terdahulu dengan proporsi campuran agregat daur ulang sebesar 50% dan 100% untuk mendapatkan suatu model hubungan kurva tegangan- regangan. Metode yang digunakan adalah analisis regresi linear sederhana menggunakan aplikasi Statistical Package for The Social Sciences (SPSS). Penelitian ini dibagi atas tiga fase analisis, yaitu analisis untuk hubungan tegangan-regangan untuk keseluruhan data, tanpa menggunakan zat aditif, dan menggunakan zat aditif. Hasil analisis pengaruh FAS terhadap kuat tekan beton menunjukan nilai signifikansi yang lebih kecil dari 0,05 yang merupakan batas dari nilai signifikansi. Ini menunjukkan bahwa nilai FAS memiliki pengaruh terhadap nilai kuat tekan beton yang menggunakan agregat daur ulang.

Sistem Paving Block Lolos Air untuk Mendukung Konsep Water Sensitive Urban Design di Kecamatan Bayat Kabupaten Klaten Desyta Ulfiana; Novia Sari Ristianti; Nurhadi Bashit; Yudi Eko Windarto
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 1, JULI 2022
Publisher : Department of Civil Engineering, Diponegoro University

Flood and drought conditions due to the global crisis occurred in Bayat District, Klaten Regency. This is due to the rural characteristics of the area, where land has been converted from forest to agricultural land and settlements. This condition causes rainwater cannot infiltrate into the ground, thereby increasing runoff and reducing groundwater reserves. Therefore, the concept of Water Sensitive Urban Design (WSUD) is applied to this location to reduce the risk of water disasters. One of the WSUD technologies that can be applied is the permeable paving block system. This system can help infiltrate water to the ground thereby reducing runoff that causes flooding and storing water to replenish groundwater reserves. The design is planned in the pilot area of Jotangan and Krikilan Villages, Bayat District by applying a partial exfiltration pavement system. The structural design of the pavement layers is in the form of a permeable paving block with a compressive strength of 21.29 MPa with a thickness of 10 cm, a bedding layer of 6 cm, an open-graded base of 18 cm, and a drain pipe with a capacity of 3,78 mm/hour. The permeable paving block system in the WSUD pilot area can reduce runoff by 62.64%.

Prediksi Kuat Lentur Balok Beton dengan Menggunakan Program Response-2000 dan Persamaan Pendekatan Fanny Monika; Kholil Muqorrobin; Hakas Prayuda; Talitha Zhafira; Lilis Tiyani
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 1, JULI 2022
Publisher : Department of Civil Engineering, Diponegoro University

Flexural strength is one of the mechanical properties of concrete that should be tested, especially for concrete that serves as a beam and is subjected to flexural loads. However, the assessment of flexural strength in concrete frequently relies solely on a mathematical approach that several previous researchers have found. Concrete structures continue to evolve, particularly in the use of more diverse and sustainable constituent materials. Meanwhile, the generated equations use conventional concrete without adding cementitious or replacement components. Therefore, it is necessary to investigate whether these equations can accurately predict the flexural strength of concrete with diverse constituent materials. This investigation was undertaken by reviewing 72 data sets derived from the experiment by previous researchers. Each set of test data will be compared to various formulas and will also be compared to the analysis performed using Response-2000. The results show that the correlation between Response-2000 and the experiment was 0.8207 with the linear regression equation y = 1.1326x + 1.0016. The flexural strength analysis using various approach formulas resulted in an average correlation R² of 0.8246, or 82.46% correlated to the results of the flexural strength of laboratory tests.

Penentuan Parameter Model NRECA Untuk Debit Pada DAS Temef Denik Sri Krisnayanti; Chrystin Chandra; Wilhelmus Bunganaen; I Made Udiana; Alvine Cinta Damayanti
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 1, JULI 2022
Publisher : Department of Civil Engineering, Diponegoro University

Suatu Daerah Aliran Sungai (DAS) yang tidak memiliki data debit pengamatan atau data debit pengamatan tidak lengkap maka akan menjadi permasalahan dalampemanfaatan sumber daya airnya.Data debit observasi yang diperoleh dari Pos Duga Air Sungai Temef kurang bisa diandalkan karena pengukuran data tinggi muka air selama beberapa tahun terakhir dilakukan dengan pengamatan langsung tanpa menggunakan alat pengukur debit. Untuk memperoleh data debit sungai dapat dilakukan dengan mensimulasi data hujan menjadi data debit, salah satunya adalah Model NRECA. Pada Model NRECA, terdapat beberapa parameter yaitu indeks kapasitas tampungan kelengasan tanah (nominal), Percent Sub Surface (PSUB), Ground Water Flow (GWF), dan koefisien tanaman (kc). Penentuan parameter Model NRECA diperoleh dengan cara coba-coba berdasarkan batasan nilai yang telah diberikan sehingga memperoleh koefisien korelasi (r) antara debit observasi dan simulasi mendekati 1. Nilai yang digunakan untuk parameter indeks kapasitas tampungan kelengasan tanah (nominal), percent sub surface (PSUB), ground water flow (GWF), dan koefisien tanaman (kc) adalah 0,20; 0,85; 0,50;dan 0,60.

Analisis Karakteristik Hujan Ekstrim Menggunakan Model Iklim di Wilayah Gunung Merapi Elenora Gita Alamanda Sapan; Joko Sujono; Karlina Karlina
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 1, JULI 2022
Publisher : Department of Civil Engineering, Diponegoro University

Extreme rainfall is one of the trigger factors for debris floods in stratovolcanos. It caused by volcanic materials will be easily eroded in large quantity with surface water flow as the result of extreme rainfall. Extreme rainfall is avnatural phenomenon which is often related with climate change. In the future, changes in extreme rainfall characteristics may occur. Therefore, it’s necessary to conduct extreme rainfall analysis for historical and future periods. In this study, the characteristics of rainfall analyzed were the variability of extreme rain as shown by trend analysis of extreme rain indices namely RTOT. Hourly rainfall data at eight rain stations used as input. Future rainfall data was projected using the global climate model CanESM2 (RCP4.5 and RCP8.5 and downscaling process using Statistical Downscaling Model (SDSM). Comparison of the projection rainfall with historical rainfall shows a different trend at each station. Increasing trend occurred at four stations including Plosokerep, Pucanganom, Sopalan, and Talun stations, with the highest increasing trend occurring at Sopalan stations. In addition, there was also a decreasing trend that occurred at Ngandong station for both scenarios and at Sorasan station in the RCP8.5 scenario. The Jrakah and Randugunting stations show a steady trend.

Efektivitas Prototipe Jembatan Penyeberangan Orang Ramah Lingkungan Hendra Hendrawan
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 1, JULI 2022
Publisher : Department of Civil Engineering, Diponegoro University

Pedestrians are road users who are prone to accidents. Several studies related to the effectiveness of providing pedestrian bridges in Indonesia have shown a low level of utilization of pedestrian bridges. This study aims to determine the efficacy of providing an environmentally friendly pedestrian bridge prototype that was built by considering user needs from planning, design, and aesthetic criteria. Data were obtained through field surveys to get information on traffic conditions and bridge users and interviews to obtain information about crossing purposes and perceptions of needs. Statistical analysis of the average difference test was carried out to prevent bias in traffic conditions. Furthermore, descriptive statistical analysis was carried out to determine the effectiveness of providing pedestrian bridges obtained from comparing data processing results with the evaluation table. The results showed that the environmentally friendly Pedestrian Bridge prototype did not guarantee an increase in the number of users. Coercion through law enforcement and the installation of dividing lanes on the lanes can be seen as a solution. However, aesthetic and sustainable design is a necessity.

Evaluasi Pemadatan Tanah pada Proyek Pembangunan Gedung Willis Diana; Edi Hartono; Agus Setyo Muntohar; Kartika Wulandary
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 1, JULI 2022
Publisher : Department of Civil Engineering, Diponegoro University

Soil compaction is one of the robust methods to improve the strength and compressibility of earthwork since the method is more efficient and practical. However, the compaction work must be evaluated to meet the maximum dry density (MDD) required from the standard laboratory compaction test. The common method used for the evaluation of field density is the sand-cone test. The main objective of this study was to investigate the relative compaction of the borrow-fill at the building construction using the sand-cone test. The test procedure followed the ASTM D1556/D1556M-15e1 and ASTM D698-12e2 for sand-cone test and Proctor standard compaction test. Statistical analysis was performed to evaluate the density and moisture obtained from the field test at Dorm and Research and Innovation Center (RIC) project construction. The probability (p) of the compaction work exceeded the 0,9 MDD or Rc=90% was calculated p=13% and p=18%. The results corresponded to average relative compaction (Rc) of 80% and 82% at the Dorm and RIC project, respectively, with the deviation standard of 8.69 dan 8.81.

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