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All Journal JOURNAL OF CIVIL ENGINEERING, BUILDING AND TRANSPORTATION Jurnal SImetri Rekayasa Educational Building: Jurnal Pendidikan Teknik Bangunan dan Sipil Buletin Utama Teknik
Kartika Indah Sari
Program Studi Teknik Sipil Universitas Harapan Medan
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation Other

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PEMETAAN DAERAH RAWAN BENCANA KECAMATAN BELAWAN DENGAN APLIKASI SISTEM INFORMASI GEOGRAFIS Kartika Indah Sari; Darlina Tanjung
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol 6, No 1 (2022): JCEBT MARET
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v6i1.6819

Abstract

District Medan Belawan often subjected to tidal flooding. This is due to because the region is located on the coast of the beach and the surface of the ground is lower than the surface of the ocean. Some of the factors that cause the occurrence of tidal flooding are global warming, high rainfall, deforestation of mangroves, the utilization of ground water for excessive, and green open space in Medan city is only available to 10% of the total area. One disaster mitigation efforts required Mapping of disaster risk as a benchmark in preparing the program and activity. Furthermore, mapping the risk of flood disaster can provide input to the government of the municipality of the field in an effort to cope with the flood disaster that occurred in district Medan Belawan. Mapping disaster-prone areas district belawan with the application of information systems geographical conducted to classify the flood zone is located in district of Medan Belawan base the physical conditions that affect the risk of flood disaster. In addition, for identifying the number of roads, the population and buildings affected by the floods done by using the results of the mapping flood prone areas based on spatial, so we knew which roads affected by flooding as much as 160 roads with a length of road 38.595 meters and the building affected by the flood reached 10.939 units spread over six districts.
Studi Perbandingan Uji Pemadatan Standar Dan Uji Pemadatan Modified Terhadap Tanah Dari Jalan Pertahanan – Patumbak Yang Dicampur Kapur Kartika Indah Sari; Lungguk Tambunan
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol 4, No 1 (2020): JCEBT Maret
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v4i1.3568

Abstract

Pemadatan dilaboratorium menghasilkan berat volume kering maksimum yang dicapai pada kadar air tertentu, pemadatan sangat bergantung pada jenis tanah, kadar air dan usaha yang diberikan pada saat pemadatan. Usaha yang diberikan (energi pemadatan) sangat bergantung pada jumlah tumbukan perlapisan, jumlah lapisan, berat penumbuk, tinggi jatuh penumbuk dan volume cetakan. Penelitian ini bertujuan untuk mendapatkan hasil perbandingan Nilai kepadatan kering maksimum dan nilai Kadar air optimum dengan menggunakan metode Standar Proctor dan Modified Proctor terhadap tanah dari Jalan Pertahanan – Patumbak yang dicampur dengan Kapur. Hasil Analisa percobaan yang didapatkan dari tanah Jalan Pertahanan – Patumbak dengan lolos saringan No.#200 40,06 %, Liquid Limit (LL) 31,60 %, Plastis Limit (PL)16,87 %, Plastis Index (PI) 14,73 %. Menurut Unified Soil Classification (USCS) tanah ini masuk kedalam simbol CL –anorgaic dengan plastisitas rendah sampai sedang, Sedangkan menurut Association of State Highway and Tranportation Officials (AASHTO) termasuk kedalam golongan A -6 digunakan sebagai tanah timbunan. Hasil yang didapat dengan pengujian Standart Proctor ASTM D-698  AASHTO  T-maksimum  kepadatan  kering  1,931  gr/cm3,  Kadar  air  optimum  11,90%, pengujian Modified Proctor ASTM D-1557 AASHTO T-180 maksimum kepadatan kering 1,946 gr/cm3, Kadar air optimum 12,1 %. Pemakaian metode Modified Proctor ASTM D-1557 AASHTO T-180 lebih tinggi hasilnya dibandingkan dengan metode Standart Proctor ASTM D-698 AASHTO T-99. 
Pengaruh Serbuk Abu Cangkang Kerang Sebagai Bahan Pengganti Filler Pada Campuran Aspal Kartika Indah Sari
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol 5, No 2 (2021): JCEBT SEPTEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v5i2.5847

Abstract

Asphalt is the main ingredient in road pavement. The specification of the Asphalt Concrete Wearing Course (AC-WC) mixture refers to the Specifications of the Ministry of Public Works, Directorate General of Highways 2010 revision 1 (BM 2010). Marshall test includes: stability, flow, Marshall Quotient, Voids In Mixture (VIM), Voids in Mineral Aggregate (VMA), and Voids Filled by Asphalt (VFA). In the AC-WC mixture that uses fine aggregate, namely clam shell filler. The shells used are from the Tanjung Balai area. From the results of the study, the effect of partial replacement of oyster shell filler was 15% and 25% which showed a change in the stability value for 15% mixture of 1192 kg and 25% of 1245 kg while the Specifications of the Ministry of Public Works of the Directorate General of Highways 2010 revision 1 of 800 kg had met specification requirements.
KAJIAN PENGARUH TINGKAT KEKASARAN BAHAN STRUKTUR PONDASI TIANG TERHADAP PENINGKATAN KAPASITAS DUKUNG TANAH Kartika Indah Sari; Nurmaidah Nurmaidah
Educational Building: Jurnal Pendidikan Teknik Bangunan dan Sipil Vol 8, No 2 DES (2022): EDUCATIONAL BUILDING
Publisher : Jurusan Pendidikan Teknik Bangunan Fakultas Teknik Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ebjptbs.v8i2 DES.41866

Abstract

Tanah lunak seperti tanah lempung merupakan tanah dengan kadar air tinggi dan daya dukung rendah. Tiang merupakan perkuatan yang dipakai dalam menambah daya dukung tanah untuk memikul beban konstruksi yang akan dibangun di atas tanah. Perkuatan tiang yang digunakan adalah tiang beton, tiang baja dan tiang kayu untuk mengetahui seberapa besar peningkatan kapasitas dukung. Metode perkuatan tanah lunak yang digunakan dalam penelitian adalah metode uji beban untuk mengetahui kapasitas dukung tiang tunggal pada tiang kayu, tiang baja dan tiang beton. Tinggi tiang yang digunakan 35 cm dan diameter 2,5 cm dengan jumlah tiang 4 dimasing-masing tiang. Hasil uji beban membuktikan bahwa kapasitas dukung tiang kekasaran lebih tinggi kapasitas dukungnya dari pada tiang polos. Kekasaran tiang dapat berpengaruh terhadap kapasitas dukung tiang. Perbedaan kekasaran permukaan tiang mempengaruhi tingkat interaksi antar partikel butiran tanah dan tiang, ini berarti lebih besar peningkatan kapasitas tiang kasar atau tiang kekasaran variasi. Kata Kunci: Lempung, Perkuatan, Tiang ABSTRACT Soft soils such as clay are soils with high water content and low bearing capacity. Piles are reinforcement used to increase the carrying capacity of the soil to carry the load of the construction to be built on the ground. Reinforcement of the poles used are concrete poles, steel poles and wooden poles to determine how much the increase in bearing capacity is. The soft soil reinforcement method used in this study is the load test method to determine the bearing capacity of single piles on wooden piles, steel piles and concrete piles. The height of the poles used is 35 cm and the diameter is 2.5 cm with 4 poles in each pole. The load test results prove that the bearing capacity of the rough pile is higher than that of the plain pile. Pile roughness can affect the pile bearing capacity. Differences in pile surface roughness affect the level of interaction between soil particles and piles, this means a greater increase in pile capacity or pile roughness variation. Keywords: Clay, Pile, Reinforcement
Pengaruh Lentur Balok Sloof Beton Bertulang Pada Struktur Kolam Renang Pada Apartement Mansyur Residence Kartika Indah Sari; Yusrizal lubis; Juli Ratna Sari
Jurnal Simetri Rekayasa Vol 3 No 2 (2021): Edisi Oktober 2021
Publisher : Universitas Harapan Medan

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Abstract

Reinforced concrete is a combination of concrete and steel reinforcement, which work together for the given load. Steel reinforcement will provide a strong tensile that is not owned by concrete. In the design of reinforced structures, the most important thing when doing the design is the loan that occurs due to the load that the structure is holding. Flexible concrete structures should be designed to have sufficient rigidity to limit borrowing that might weaken the strength or serviceability of the structure under working loads. The first step is analyzing reinforced concrete beams by calculating the external forces (Ultimate Moment) using the SAP2000 application with known materials from the data and working drawings, then comparing the results of the calculation of internal forces with the moment of resistance on materials with MuMn requirements. The calculation of the moment of resistance (Mn) is based on (SNI 2847: 2013). After calculating the Momentum and nominal limits, Mu = 9.0304 kN.m < Mn = 66,832 KN.m, so as to secure the construction of the concrete sloof against the loan.
Kajian Pondasi Sumuran pada Jembatan Bo'u Lahomi Kabupaten Nias Barat. Rizky Franchitika; Kartika Indah Sari; Yustinus Y.P Gulo
Jurnal Simetri Rekayasa Vol 4 No 1 (2022): Edisi April 2022
Publisher : Universitas Harapan Medan

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Abstract

The Bo'u Lahomi-West Nias Bridge is a bridge that spans 11.80 m. The sub-structure of the bridge consists of abutments and foundations. This evaluation was conducted to determine the bearing capacity of the well foundation and the safety factor against the working load along with an evaluation of the analysis of the amount of foundation reinforcement and pile cap. The safety factor for the bearing capacity of the well foundation is determined based on the comparison of the bearing capacity value of the well foundation > with the maximum load value that works on the foundation, while the safe factor for pile cap reinforcement and the well foundation is determined based on the strength value of the column > with the maximum load value received. In addition to field data, this analysis requires testing of soil parameters in the laboratory. The meters tested were specific gravity (Gs), filter analysis of moisture content, density, direct shear strength of the soil in the field. Based on the results of the analysis of the bearing capacity of the well foundation, it was found that the value of the bearing capacity of the pile foundation group was 2510,78 tons and the maximum load acting on the foundation was 1550,40 tons. 15 13, and shear reinforcement in the direction of X 10 – 140 and Y 10 – 100 and analysis of reinforcement on the well foundation obtained 35 D 19-250 principal reinforcement and spiral reinforcement 12 – 50 with a column strength of 7654.153 Ton > Pu = 1550.40 Tons, thus the bearing capacity of the well foundation on the bo'u bridge meets the requirements and is safe against the load received and the column cross-sectional design meets the requirements so that the size of the piles and reinforcement can be used.
Teoritikal Bentuk Bore Tsunami Menggunakan Metode Dambreak Dan Wavemaker Dengan Sistem DualSPHysics Kartika Indah Sari; Yusrizal Lubis; Ditya Andrean Supit
Jurnal Simetri Rekayasa Vol 4 No 1 (2022): Edisi April 2022
Publisher : Universitas Harapan Medan

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Abstract

A tsunami is a large water wave with the impact of damage and destruction on facilities and infrastructure when it spreads to the mainland. In general, a tsunami approaching the coast forms a bore wave when a single uniform (solitary) wave in a tsunami breaks when it enters the coast. This research was conducted to determine the transition process of tsunami waves to form a bore, as well as to determine the characteristics of the tsunami bore shape. The bore tsunami research was carried out using the dambreak and wavemaker methods using the DualSPHysics simulation computational program, the dimensions of the open channel at the dambreak were 20.7 m x 1.43 m x 1.5 m. The beach modeling on the dambreak has dimensions of 12.7 m x 0.64 m with a slope of 1:20. The channel dimensions on the wavemaker are 135 m x 2 m x 5 m. The wavemaker beach model has dimensions of 60 m x 3 m with a slope of 1:20. The total number of particles in the dambreak simulation is 24,638,764. The simulation results provide information that the bore wave is the result of the transition of a solitary wave breaking as it approaches the shoreline. The wave height that was formed at the beginning of the formation will continue to increase in height until it approaches the shoreline
PENGGUNAAN OLI BEKAS SEBAGAI BAHAN TAMBAH TERHADAP KARAKTERISTIK MARSHALL PADA DAUR ULANG OLI BEKAS Yusrizal Lubis; Kartika Indah Sari
Jurnal Simetri Rekayasa Vol 1 No 2 (2019): Edisi November
Publisher : Universitas Harapan Medan

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Abstract

Recycling methods can be used to reduce road construction costs. One of the recycling methods is mixing asphalt with used oil (lubricating oil), this method has been used by several AMP (Asphalt Mixing Plate) companies for asphalt mixtures. However, there is no reference / reference for the percentage of the oil mixture that is commonly used as an asphalt mixture. It is feared that an inappropriate oil mixture will cause damage or make the asphalt mixture not according to the specified specifications such as the stability and flow value of the asphalt mixture. The method used is an experiment, where 15 test objects are made using asphalt pen 60/70 to determine the KAO, after the KAO value is obtained, then used oil is mixed with variations of 1%, 2%, and 3%. From this research, the value of Stability and Flow in used oil mixtures with a variation of 1% Used oil obtained a stability value of 1033,936 kg and a flow of 3,21 mm, with the addition of 2% used oil, a stability value of 1037,246 kg and a flow of 3,25 were obtained. mm, the addition of 3% used oil obtained a stability value of 1040,142 kg and a flow of 3,30 mm. As the variation of the mixture of Stability and Flow values ​​increases, the percentage of addition of used oil mixture at 1%, 2%, 3%, Stability and flow values ​​meet the 2010 general specifications (revision 3), where the stability value has a minimum of 800 and the flow value a minimum of 2 and a maximum of 4. From the results of the marshall test of used oil mixtures, which start from a variation of 1% to 3% seen from the marshall parameters and data processing, the variation that is used as the optimum asphalt content in used oil added ingredients is the used oil variation of 3%.
KAJIAN JARINGAN IRIGASI SALURAN PRIMER PADA KAWASAN KARANG ANYER KABUPATEN SIMALUNGUN Yusrizal Lubis; Diana Suita; Kartika Indah Sari
Jurnal Simetri Rekayasa Vol 3 No 1 (2021): Edisi April 2021
Publisher : Universitas Harapan Medan

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Abstract

The Kerasaan irrigation area is an irrigation area located in Pematang Bandar District, Simalungun Regency, North Sumatra Province. With a functional area of ​​5000 (Ha) and a primary irrigation channel area of ​​31.02 (km). In optimizing irrigation performance in the Kerasaan irrigation area, maintenance of the irrigation network infrastructure must be carried out, one of which is by evaluating the irrigation channels in the area. This evaluation aims to identify and analyze the condition and function of irrigation assets in the Kerasaan irrigation area, so as to optimize the function of the irrigation canal to irrigate the lands in the irrigation area. The method used in evaluating the irrigation canal is the observation of method by tracing the irrigation network using a tool (GPS) to find out the coordinates of the channel point and documenting asset damage with a camera/mobile phone. Based on the results of the analysis, the total length of damage to the channel structure of the pair is 10 m from a combination of several segments in 2 canals in the primary channel with a total damage index of 0.70%. In the Kerasaan primary channel from the survey results as far as (± 1500 m) in the field, there are 1 unit of side spillway building, 2 units for tapping, and 2 units of mud bag building. The results of the analysis can be used for planning the construction of irrigation buildings by planning structures, sluice gates and measuring buildings.
PENGARUH TINGKAT KEKASARAN TIANG PANCANG TERHADAP PENINGKATAN KAPASITAS DUKUNG DI KECAMATAN DELITUA Kartika Indah Sari; Priaji Yudha Astomo
Buletin Utama Teknik Vol 18, No 2 (2023): Edisi Januari
Publisher : Universitas Islam Sumatera Utara

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Abstract

Tanah lunak seperti tanah lempung merupakan tanah dengan kadar air tinggi dan daya dukung rendah. Tiang merupakan perkuatan yang dipakai dalam menambah daya dukung tanah untuk memikul beban konstruksi yang akan dibangun di atas tanah. Perkuatan tiang yang digunakan adalah tiang beton, tiang baja dan tiang kayu untuk mengetahui seberapa besar peningkatan kapasitas dukung. Metode perkuatan tanah lunak yang digunakan dalam penelitian adalah metode uji beban untuk mengetahui kapasitas dukung tiang tunggal pada tiang kayu, tiang baja dan tiang beton. Tinggi tiang yang digunakan 35 cm dan diameter 2,5 cm dengan jumlah tiang 4 dimasing-masing tiang. Hasil uji beban membuktikan bahwa kapasitas dukung tiang kekasaran lebih tinggi kapasitas dukungnya dari pada tiang polos. Kekasaran tiang dapat berpengaruh terhadap kapasitas dukung tiang. Perbedaan kekasaran permukaan tiang mempengaruhi tingkat interaksi antar partikel butiran tanah dan tiang, ini berarti lebih besar peningkatan kapasitas tiang kasar atau tiang kekasaran variasi.
Co-Authors Darlina Tanjung Darlina Tanjung Diana Suita Ditya Andrean Supit Juli Ratna Sari Leonardo Anugerah Halawa Lungguk Tambunan nurmaidah nurmaidah Priaji Yudha Astomo Rizky Franchitika Yusrizal Lubis Yustinus Y.P Gulo