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Jurnal Riset Rekayasa Sipil
Published by Universitas Sebelas Maret
ISSN : 25797999     EISSN : -     DOI : -
Core Subject : Social, Engineering,
Civil Engineering, Building, Construction & Architecture Engineering Environmental Science
The Journal of Research and Civil Engineering is a journal to accommodate the writings of researchers and professionals in the field of civil engineering.
Arjuna Subject : -
Articles 85 Documents
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UPDATING OF SURAKARTA SEISMIC SITE CLASS MAP BASED ON STANDARD PENETRTION TEST Yusep Muslih Purwana; Raden Harya Dananjaya; Yusuf Cahyo Nogroho
Jurnal Riset Rekayasa Sipil Vol 3, No 2 (2020): Maret 2020
Publisher : Prodi Teknik Sipil FT Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1581.19 KB) | DOI: 10.20961/jrrs.v3i2.41085

Abstract

Surakarta is one of the cities in Java island with a high population growth rate, triggering the increase in the construction, especially for high-rise buildings. The city is close to several earthquake sources, causing a high level of seismic hazard. One of the main parameters of earthquake resistant building design is the value of peak ground acceleration at surface level. It is obtained by multiplying the peak ground acceleration in the bedrock by a multiplier factor that depends on the site class conditions of the location. A previous study has been conducted in 2015 using 32 boreholes indicating that around 19.5% of Surakarta area is classified as SC (hard soil), and 80.5% of the rest is SD (medium soil). To increase the accuracy, another 31 additional boreholes data are adopted. The new result shows that Surakarta is divided into three different seismic site class. Around 4.80% the area is classified as SC (hard soil), 94.50% is SD (medium soil), and 0,70% is SE (soft soil). The southern part of Surakarta has a higher level of vulnerability to earthquakes, especially in the border area between Banjarsari, Laweyan, and Serengan subdistricts which have a SE (soft soil) seismic site class.
FAULT TREE ANALYSIS DAN AUDIT AKURASI PADA PENERAPAN SISTEM MANAJEMEN KESELAMATAN KERJA KONSTRUKSI TERINTEGRASI Studi Kasus: Proyek Pembangunan Gedung Pelayanan (Fisik) RSUD Tidar Kota Magelang, Kontraktor B1 Alvian Purbiantoro; Adwitya Bhaskara
Jurnal Riset Rekayasa Sipil Vol 3, No 2 (2020): Maret 2020
Publisher : Prodi Teknik Sipil FT Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (177.541 KB) | DOI: 10.20961/jrrs.v3i2.40952

Abstract

Building a construction project is an activity which contains many dangerous elements.  It causes the construction industries have bad record in the terms of occupational safety.  Therefore, occupational safety is an aspect that must be improved any time because it is a very complex problem which covers issues in the terms of humanity, legal aspect, accountability and the image of the organization itself.  This study aims to (1) Determine the accuracy level of the Occupational Safety Management System Application in the Service Building (physical) Construction Project in Tidar Regional Hospital (RSUD) Magelang, (2) Identify and analyze the potential risks of work accident by using Fault Tree Analysis (FTA) method and planning mitigation to reduce the scope of construction in progress. This study is a quantitative analysis where the research is conducted by collecting the primary data through interview and observation, meanwhile the secondary data is in the form of data from the project itself. FTA is used to investigate the potential of workplace accidents by analyzing the direct causes to the basic causes of the accident itself.  The results of the study show that (1) The accuracy level of the application of Occupational Safety Management System which has been applied has an assessment rate of 97.29% and it is included in the level of satisfactory assessment.  (2)  The results of the analysis using FTA obtained several incidents that potentially can cause workplace accidents, incidents such as the workers who do not wear personal protective equipment, workers who act carelessly, and the lack of work experience are the frequent cases in the basic FTA incidents.
PENGARUH PERKUATAN TIANG TERHADAP STABILITAS TIMBUNAN DIATAS TANAH LUNAK MENGGUNAKAN METODE ELEMEN HINGGA Bambang Setiawan; Raden Harya Dananjaya H.I.; Muhammad Fathurrahman
Jurnal Riset Rekayasa Sipil Vol 3, No 2 (2020): Maret 2020
Publisher : Prodi Teknik Sipil FT Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.978 KB) | DOI: 10.20961/jrrs.v3i2.40953

Abstract

Pile strength is widely used as a solution to the problem of road pavement on soft soil, because it can reduce vertical displacement due to the load on it and increase the safety factor value. This research analyses the vertical displacement, safety factor, effective stress and bearing capacity of the embankment on soft soil using the finite element method so the results can approach the original conditions in the field. The pile variations used are pile size variations 20x20 cm2; 25x25 cm2; and 30x30 cm2 with a square shape, variations in the distance between the piles 1,60 m; 1,80 m; 2,00 m; and 2,20 m, the depth variations 15,00 m; and 20,00 m. Loading uses truck loads based on RSNI T-14-2004 and the road classification is artery IA. The results of the analysis show that pile strength with a size 20x20 cm2, the distance between pile is 1,60 m and the depth of the piles 20 m can reduce the vertical displacement by 71,31% and increase the safety factor by 123,25%.
PENGARUH AIR LAUT PADA MASA PERAWATAN TERHADAP INFILTRASI ION KLORIDA PADA BETON DENGAN PENAMBAHAN FLY ASH 12,5% Laras Ari Indriyanto; Ashar Saputra; Djoko Sulistyo
Jurnal Riset Rekayasa Sipil Vol 3, No 2 (2020): Maret 2020
Publisher : Prodi Teknik Sipil FT Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (326.817 KB) | DOI: 10.20961/jrrs.v3i2.40955

Abstract

The use of concrete material which dominates Indonesian construction industry is not only because its compilers are easy to get, but also because it has high durability. Anyhow, concrete structure might have high risk of damage in aggressive region and open space. Sulfate attack will form calcium sulfoaluminate where the volume of calcium aluminate is higher than concrete’s, so its volume increases and damages the connection between aggregate and cement which work as bonding. One of applicative and easy-to-get technology in preventing the effect of sulfate attack is by using additional material, pozzolan. It consists of fly ash and Blast Furnace Cement BFC which come from iron ore refining process. This research aims at finding out the effect of sea water in immersion phase and age variation towards compressive strength, split strength, flexural tensile strength and concrete permeability as well as the depth of chloride ion infiltration in normal concrete by adding fly ash. Chloride ion infiltration testing is done by soaking 150x150x150 mm cube using sea water with various period for 28, 60 and 90 days and then it will be sprayed by AgNO3 solution to know the depth of absorbed chloride ion infiltration. Chloride ion infiltration of concrete using sea water happens in 0-1.4 cm depth up to 90 days management. The addition of fly ash 12.5% makes the depth of chloride ion infiltration become smaller than using OPC for each immersion age variation.
PEMETAAN KONDISI JALAN BERDASARKAN IRI ROADROID DI KABUPATEN GRESIK WILAYAH SELATAN Roselina Rahmawati; Rendy Dwi Pangesti; Rifqi Aulia Abdillah
Jurnal Riset Rekayasa Sipil Vol 4, No 2 (2021): Maret 2021
Publisher : Prodi Teknik Sipil FT Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (646.292 KB) | DOI: 10.20961/jrrs.v4i2.44230

Abstract

Pelaksanaaan evaluasi dan pemeliharaan jalan merupakan salah satu kegiatan yang penting degan tujuan menjaga kondisi jalan tetap terjaga sesuai dengan umur rencana. Perencanaan yang didasarkan pada data yang baik perlu dilaksanakan dalam rangka peningkatan pelayanan jalan. Pemerintah Kabupaten Gresik memiliki program salah satunya adalah meningkatkan kualitas penyelenggaraan jaringan jalan, untuk mendukung rencana tersebut maka diperlukan studi pengembangan jalan daerah, dalam mendukung terwujudnya pengembangan wilayah dan konektivitas jaringan jalan daerah. Penggunaan alat IRI Roadroid merupakan salah satu alat penilaian jalan, dimana alat tersebut tergolong alat yang sederhana dan relatif murah. Penelitian ini bertujuan menilai kondisi jalan Kabupaten Gresik Wilayah Selatan menggunakan IRI Roadroid, kemudian di ekspor ke dalam peta dengan menggunakan aplikasi GIS. Penggunaan alat IRI Roadroid dalam hasil survey didapatkan hasil yang menyatakan bahwa beberapa ruas tinjauan yang memiliki kondisi kerusakan jalan rusak ringan sampai berat, sehingga diperlukan penanganan pemeliharaan jalan yang serius. Rata-rata dari ruas jalan memperoleh nilai e-IRI 5,20, berdasarkan Pemen PU No. 13/PRT/M/2011 maka kondisi ruas jalan tinjauan dikategorikan sedang. Hasil analisis data eIRI tersebut dimasukkan kedalam  pemetaan GIS dengan bantuan program QGIS 2.8.1 didapatkan gambaran nilai eIRI dalam bentu peta Roadroid. Peta tersebut untuk memudahkan untuk mengetahui jenis dan lokasi kerusakan jalan yang terjadi di ruas jalan tinjauan.
ANALISIS POLA OPERASI WADUK SANGIRAN Rifki Maulana; Rr Rintis Hadiani; Cahyono Ikhsan
Jurnal Riset Rekayasa Sipil Vol 4, No 1 (2020): September 2020
Publisher : Prodi Teknik Sipil FT Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1073.744 KB) | DOI: 10.20961/jrrs.v4i1.44636

Abstract

Dam is a reservoir that is needed to save water so that it can be used at the time needed both for irrigation, hydropower, and tourism. One of the Functional Dam in Indonesia is the Sangiran Dam. Sangiran Dam is located in Sumber Bening Village, Bringin District, Ngawi Regency, East Java Province. The Sangiran Dam is equipped with an overflow ogee crest type overflow building with side channels. Sangiran Dam gate type is slide gate with automatic operation using electric generator. The reservoir, which was operated starting in 2000, is designed to meet the needs of a plantation area of 1535 ha. However, in the operation that is needed in meeting the needs of irrigation air needs to be done in research the current operating patterns of the operating patterns that have been designed at the time of the reservoir design to compile an operating pattern that can meet water needs, at this time, looking for a relation between the elevation of reservoir water levels with an outflow discharge coming out of the reservoir. Based on the results of the analysis conducted on the current operating patterns are not in accordance with the pattern of initial design operations with an average deviation of 51.78% per year. This research is being carried out to analyze the optimal operating patterns of the Sangiran Dam and / or possible operating patterns in meeting water needs in the following years.
RISIKO BANJIR PADA DRAINASE PADA MASA PANDEMI COVID-19 Rumilla Harahap; Kemala Jeumpa; Sarra Rahmadani
Jurnal Riset Rekayasa Sipil Vol 4, No 2 (2021): Maret 2021
Publisher : Prodi Teknik Sipil FT Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (578.69 KB) | DOI: 10.20961/jrrs.v4i2.44231

Abstract

Besarnya dampak kerugian yang dihasilkan baik materi maupun non materi serta kondisi drainase yang tidak berfungsi lagi baik disebabkan oleh daya tampung yang lebih kecil dari debit yang ada, kurangnya perawatan maupun sistem pengaliran dan pembuangan yang tidak sesuai lagi dengan lingkungan dan juga tahun 2020 terjadi saat pandemi Covid-19. Beberapa daerah diantaranya Kecamatan Medan Polonia, Medan Sunggal, Medan Petisah, Medan Tembung, Medan Barat, Medan Timur  selalu  terjadi  banjir  karena  drainase  tidak  mampu  menampung  lagi.  Mengingat  begitu banyaknya kerugian yang ditimbulkan oleh banjir atau genangan luas dan tinggi, maka penelitian berjudul “Risiko banjir pada drainase pada masa pandemic covid-19” dengan tujuan untuk mengetahui debit banjir dari besaran hujan dimasa pandemic Covid-19. Data yang digunakan data curah hujan dari BMKG selama 10 tahun, untuk menganalisa hidrologi menggunakan Metode Log Pearson III dan Analisa hidrolika menggunakan debit banjir. Mencari hujan rencana dengan kala ulang 2 tahun, 5 tahun, 10 tahun. Kemudian  hasilnya dibuat dalam bentuk kurva. Selanjutnya perhitungan debit banjir periodik menggunakan Metode Rasional untuk research . Hasil yang ditargetkan dengan adanya karya ilmiah ini dapat digunakan oleh instansi yang bersangkutan.   metode log pearson type  III Intensitas curah hujan untuk periode ulang  ulang 10 tahun adalah 122,85 mm/jam dan debit banjir rancangan untuk Q 10 Tahun adalah 4,228 m3/det hasil penelitian ini diharapkan dapat mengurang risiko banjir dan Menumbuhkan kesadaran masyarakat agar menjaga kesehatan, memelihara drainase, tidak membuang sampah disembarangan dan semoga bermanfaat untu pemerintah daerah.
PENGARUH JARAK TERHADAP INTERVAL WAKTU PERUBAHAN SUHU PERMUKAAN BETON PADA UJI THERMOGRAPHY AKTIF Suyadi K K; Herlien D Setio; Adang S; Ediansjah Z
Jurnal Riset Rekayasa Sipil Vol 4, No 1 (2020): September 2020
Publisher : Prodi Teknik Sipil FT Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (339.123 KB) | DOI: 10.20961/jrrs.v4i1.44637

Abstract

Concrete surface temperature changes on active thermography testing process using a halogen lamp will occur in a relatively short time. These changes are very useful in the image interpretation process which relies on changes in thermal contrast to determine the internal conditions of reinforced concrete. This research aims to determine the time interval dominance concrete surface temperature changes due to changes in object distance to the heat source as the excitation source of heat. Tests carried out in the room, so that the concrete surface temperature changes due to the effects of wind are considered small. Measurement of the temperature of the concrete surface due to the heating and cooling process using thermocouples and thermography methods. Halogen lamps are used as a source of heat excitation placed at various distances (dobj), namely 20 cm; 30 cm and 40 cm. The distance between the halogen lamp axles in this study was 30 cm. The dimensions of the test object were used 10 cm x 10 cm x 15 cm with a concrete quality of 20 MPa. The frequency percentage is analyzed according to the amount of data with the same time interval for the change in surface temperature at each distance of the specimen from the heat source. The results showed that the change in the distance of the specimen to the heat source up to 40 cm had a quite small difference, but the increase in the distance between the test object and the heat source tended to decrease the dominance of changes in the temperature of the concrete surface. The average dominance of changes in the temperature of the concrete surface is almost above 75% of the temperature change occurs at the smallest interval of the measuring instrument used, namely 1 second using a thermocouple and 0,133 seconds using the thermography method. The highest percentage shows that changes in surface temperature often occur in the range of time intervals. So based on this analysis without reviewing aspects of the distribution pattern of the data, can be concluded that the surface temperature testing of concrete by using active thermography in the room had to use measuring devices that can record temperature changes every interval of 0.133 seconds. This shows that the change in the temperature of the concrete surface during active thermography testing, the setting of the test instrument for measuring temperature changes is used in that time interval.
KAJIAN KARBONASI PADA BETON MUTU TINGGI MEMADAT MANDIRI DENGAN VARIASI KOMPOSISI METAKAOLIN Wibowo Wibowo; Endah Safitri; Delista Putri Deni
Jurnal Riset Rekayasa Sipil Vol 4, No 1 (2020): September 2020
Publisher : Prodi Teknik Sipil FT Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (513.041 KB) | DOI: 10.20961/jrrs.v4i1.44632

Abstract

The construction industry is an important thing to support the development of a country. In concrete construction, quality, strength, and durability of concrete are the main requirements of all. In urban tropical countries, carbonation is one of the essential factors that affect the durability of concrete, and it may cause corrosion of reinforced steel in concrete. Therefore, high strength self-compacting concrete may be expected as the solution, improved by pozzolanic additions, metakaolin with substitution dosage at 10%; 12,5%; 15%; 17,5%; and 20%. This study purposed to determine the effect of metakaolin and its optimum dosage to improve high strength self-compacting concrete quality on its carbonation rates. This study was done by using experimental methods. It needs a plain cylindrical concrete with 75 mm diameter and 150 mm height, and testing by SNI 03-6468-2000, EFNARC 2002, and SEM-PUPR 25-2015. The carbonation test is done using accelerated laboratory carbonation in Structures and Materials Laboratory, Faculty of Engineering, Universitas Sebelas Maret by soaking the specimens in a 4% carbonate solution for 15 days, 37 days, and 51 days, proceeded by splitting using CTM, and spray it using a 1% phenolphthalein indicator to determine its carbonation depth. Based on the results, metakaolin might improve concrete quality by reducing its carbonation rates by 15% substitution dosage of cement content, with a nominal atmospheric carbonation coefficient 3,71 mm/year½, reduced 44,41% from HSSCC without metakaolin substitution. Metakaolin addition might reduce fresh concrete's workability and fulfill self-compacting concrete requirements specified by EFNARC 2002.
PRELIMINARY STUDY ON PLASTICINE AS A SUBSTITUTE COHESIVE MATERIAL FOR GEOTECHNICAL PHYSICAL SOIL MODELING Yusep Muslih Purwana; Bambang Setiawan; Raden Harya Danajaya; Brilliant Bagaskara
Jurnal Riset Rekayasa Sipil Vol 4, No 2 (2021): Maret 2021
Publisher : Prodi Teknik Sipil FT Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (796.315 KB) | DOI: 10.20961/jrrs.v4i2.49197

Abstract

Plasticine is an artificial material made from solids such as gypsum, lime, mixed with petroleum jelly or micro wax and acid fat. The properties of plasticine are likely similar to natural clay and is influenced by oil content. The information about mechanical properties of plasticine is still very rare, and as such the study on it is riquired and must be conducted intensively. The preliminary laboratory study has been conducted to understand the behaviour of plasticines. Microwax and petroleum jelly based plasticines were utilised with the variation of oil content, whereas kaolin clay with the variation of water content is utilised as a reference material. The study is focusing on the stress-strain behaviour for both microwax and petroleum jelly based plasticines compared to the stress-strain behaviour of kaolin clay. This paper reports the result of preliminary investigation regarding the use of plasticine as an alternative artificial material for substitution of clay in soil modeling. Some engineering properties from unconfined compression strength (UCS) test and hand penetrometer are shown. The result indicates that the stress-strain behaviour of plasticine resembles the stress-strain behaviour of kaolin clay. The plasticine is suitable as a substitute cohesive material and it has a potential to be utilised for geotechnical material modelling in the future.

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