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ANALISIS PERBANDINGAN PASIR JAMBI DAN PASIR PONTIANAK TERHADAP KUAT TEKAN BETON Sahat Martua Sihombing; Parlindungan Panjaitan; Achmad Pahrul Rodji
Jurnal Sipil Krisna Vol 8 No 1 (2022): JURNAL SIPILKRISNA
Publisher : Fakultas Teknik Universitas Krisnadwipayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61488/sipilkrisna.v8i1.153

This study aims to analyze the comparison of Jambi sand and Pontianak sand to the compressive strength ofconcrete. Concrete is a mixture obtained by mixing Portland cement, water and aggregate, which is an additivethat varies greatly from chemical additives. For the construction of roads, bridges, buildings, etc. which are in theconcrete mix. Aggregate is the largest part in the formation of concrete, while cement and water will form a pastethat will bind the aggregate. Concrete is a function of its constituent materials consisting of cement, hydraulic,fine aggregate, water and admixture additives. In this study, there are two types of fine aggregate used, namelyJambi Sand and Pontianak Sand. The quality results of Jambi Sand met the organic standard and test by achievinga result of 3, while the quality of Pontianak Sand on the organic test reached 5, and in terms of specific gravity,Pontianak Sand was better than Jambi Sand. The results of the compressive strength of concrete with Jambi Sandand Pontianak Sand were found to be stronger with Pontianak Sand with an average of 63.60

ANALISIS TEBAL PERKERASAN LENTUR PADA JALAN TOL AKSES MENUJU BANDARA INTERNATIONAL KERTAJATI Reynaldi Fransiscus; Sahat Martua Sihombing; Yonas Prima
Jurnal Sipil Krisna Vol 8 No 1 (2022): JURNAL SIPILKRISNA
Publisher : Fakultas Teknik Universitas Krisnadwipayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61488/sipilkrisna.v8i1.155

Access road to toll road access to Kertajati International Airport, Majalengka Regency, West Java, ispart of the transportation system as a means of service infrastructure for the impact of population growth. Inorder to meet these needs, a new pavement design is needed to serve the traffic needs in the future. The concept offlexible pavement planning is planned for the axle load configuration which results in the greatest stress on theslab. Likewise in the portlan cement association method, the calculations obtained are almost the same as the2017 road pavement design manual (MDP). each obtained for surface AC/WC AC/BC 10.16 cm, Asphalt Base14.85 cm and with a manual design 2017. The resulting AC/WC AC/BC surface layer is 100 cm thick andAsphalt Base is 145 cm thick. So that the total thickness of the flexible pavement is 24.5 cm, from the results ofboth the AC/WC AC/BC surface figures 100 cm Asphalt Base 150 cm, the difference is larger and smaller thanthe calculation. This is due to the basic concept of each method

ANALISIS PENINGKATAN TEBAL PERKERASAN RUNWAY DI LANUD RADEN SADJAD RANAI KABUPATEN NATUNA Budi Setiawan; Sahat Martua Sihombing; Lydia Darmiyanti
Jurnal Sipil Krisna Vol 8 No 1 (2022): JURNAL SIPILKRISNA
Publisher : Fakultas Teknik Universitas Krisnadwipayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61488/sipilkrisna.v8i1.156

The Riau Islands Province is currently one of the provinces in Indonesia which is experiencing significantdevelopment, especially in the tourism sector. This condition affects the number of use of commercial aviationservices that will enter and leave our area both now and in the future. Raden Sadjad Ranai Lanud, Natuna Regency isthe gateway to Natuna Island and is the main airport which currently serves international standard domestic flights.The airport uses a single runway which is the simplest configuration. Analysis of the flexible pavement thickness ofthe runway at Raden Sadjad Ranai Air Force Base in Natuna Regency aims to determine the thickness of the flexiblepavement layer of the runway at the airport. The planning method used is the FAA (Federal Aviation Administration)method. The first step that needs to be considered is the CBR (California Bearing Ratio) value of the subgrade, thedetermination of the modulus of subgrade value, the selection of the plan plane, the MTOW of the aircraft, the loadof one aircraft wheel (W2), corrected departure (R2), the load of one wheel of the aircraft plan (W1 ) and theequivalent annual deparature of the planned aircraft (R1). This pavement thickness analysis uses the plan C-130Hercules and Boeing 737-500 aircraft. Based on the data obtained, then the plan aircraft MTOW value, thesubgrade classification value according to the FAA is plotted on the FAA flexible pavement thickness evaluationcurve so that the pavement thickness is obtained, the results of this study indicate that for plan aircraft C-130Hercules and Boeing 737-500 required surface coarse thickness 21.59 cm by 41.91 cm coarse subbase layer. Theresults with this comparison COMFAA application required a surface coarse pavement thickness of 20 cm with 30cm of base coarse layer and 12.24 cm of subbase layer

PERENCANAAN GEOMETRIK JALAN TOL CIBITUNG – CILINCING INTERCHANGE TAMBELANG KABUPATEN BEKASI Achmad Pahrul Rodji; Sahat Martua Sihombing; Qawi Ayadillah Hariyanto
Jurnal Sipil Krisna Vol 8 No 1 (2022): JURNAL SIPILKRISNA
Publisher : Fakultas Teknik Universitas Krisnadwipayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61488/sipilkrisna.v8i1.158

The regencies of Bekasi, Karawang, and Purwakarta are experiencing rapid economic growth,because they are the center of the largest industrial area in West Java. This condition causes an increase intraffic on the Jakarta-Cikampek toll road to Jakarta or vice versa so that congestion often occurs. To overcomethese problems, it is necessary to build a toll road that can break down congestion on inner city toll roads, theCibitung - Cilincing toll road is made to reduce congestion on inner city toll roads because freight cars can godirectly to the port without having to go through the inner city toll road. . The purpose of this study is to planthe geometry of the toll road, especially in the access ramp section to and from the toll road. Geometricinterchange planning methodology by following the 2001 AASHTO standard, Procedures for GeometricPlanning for Inter-City Roads no. 038/TBM/1997, Geometric Planning Standards for Urban Roads 1992. Fromthese geometric plans selected 1 ramp located at the Tambelang interchange, the geometric planning analysisincludes vertical alignment, horizontal alignment the bend types used in the design include FC, SCS bends, andfor vertical alignments are concave and convex.

ANALISIS TEBAL PERKERASAN RUNWAY PADA BANDARA INTERNASIONAL OE-CUSSE, TIMOR LESTE Sahat Martua Sihombing; Achmad Pahrul Rodji; Al Muzamil
Jurnal Sipil Krisna Vol 8 No 1 (2022): JURNAL SIPILKRISNA
Publisher : Fakultas Teknik Universitas Krisnadwipayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61488/sipilkrisna.v8i1.159

Oecusse-Ambeno is one of the districts in Timor Leste which is being developed by the government. Oneof the developments is through the implementation of an airport project called the "New Development of OecusseInternational Airport Project" which aims to increase access to Timor Leste and as an exclusive economicdevelopment zone for Timor Leste. Over time, the level of runway pavement can decrease. Therefore, the qualityof the pavement structure must be considered so that it is able to serve the planned traffic over the coming period.The author uses the standard rules of the Federation Aviation Administration (FAA) as the basis for planning theair side of the airport. This air side planning, adjusts to passenger growth for the next 20 years. Airside geometricrequirements are runway length 2200 m with a width of 45 m. In this analysis using the auxiliary program, namelythe manual method and FAARFIELD. Based on the results of calculations using FAARFIELD software andgraphics, the type of aircraft planned for the A330-330 within the next 20 years development period is the totalpavement thickness with FAARFIELD software is 658 mm, which consists of 120 mm surface course, 343 mmBase Course, and 195 mm Subbase Course while the graphical method obtained a total pavement thickness of730 mm, consisting of 102 mm Surface Course, 480 cm Base Course, and 152 mm Subbase Course. The differencein the calculation of the FAARFIELD software by graphical method is 10% or the difference is about 72 mm, sothe results of the calculation of the graphical method are thicker than FAARFIELD.

ANALISIS PENINGKATAN DERMAGA PADA PT BERLIAN MANYAR SEJAHTERA SURABAYA Ahmad Supriyatna; Sahat Martua Sihombing; Achmad Pahrul Rodji
Jurnal Sipil Krisna Vol 8 No 1 (2022): JURNAL SIPILKRISNA
Publisher : Fakultas Teknik Universitas Krisnadwipayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61488/sipilkrisna.v8i1.160

The fender functions as a cushion that is placed in front of the pier, so that the fender can withstand the pierstructure from impact when the ship is maneuvering to lean on the pier. Ships docked at the pier still have speedeither driven by their own engines or pulled by tugboats. To avoid damage to ships and docks due to collisions, abearing or fender is installed in front of the dock which functions to absorb the impact energy. The amount ofimpact energy caused by the ship docking to the dock can be obtained by determining the block coefficient on theship, the ship mass coefficient, the ship's eccentricity coefficient to the dock, and the ship's docking speed in aperpendicular direction. The force transmitted to the pier depends on the type of fender and the allowabledeflection of the fender. When the ship hits the fender, the fender will deflect and transmit the impact force to thepier structure. Fender planning is determined based on the energy absorbed due to ship collision. The purpose ofthis study is to find out how to calculate the size of the pier required for one ship loading and unloading at thePort of PT. Berlian Manyar Sejahtear; knowing the size and strength of the required number of fenders at thePort of PT. Berlian Manyar Sejahtera; find out the number of fenders that will be used in upgrading the PT.Berlian Manyar Sejahtera. The research stages or steps of the research methodology begin with conducting a preliminary study or literature which includes literature study and data identification. The existing length of thepier is 200 meters, it will be increased by 50 meters so that the total length of the pier is 250 meters. The resultsof the analysis using 2 examples of ships docked at the PT. Berlian Manyar Sejahtera The length of the pier neededto serve the ships that dock is 226.8 meters. In the planning of PT. Berlian Manyar Sejahtera uses 1200 SCH or1200 SPC cone type fenders with an impact energy of 0.62 tm. The results of the analysis used a 1300 SPC conetype fender with an impact energy of 0.68 tm. Cone type fenders have a "Pad" which is a protector against thefender rubber itself, so in the event of a ship collision that is stronger than planned, the protector will protect thefender rubber and the dock structure. The results of the analysis using a ship weighing 56.545 tons can be usedwith a cell fender type with dimensions OD x ID = 380 x 190 which has an absorption energy of 1.20 tm. Theforce absorbed by the fender is 16.72 tons. For type V fenders, the KVF 200 HCA type is used which has anabsorbed energy value of 1.0 tm and a forward force of 15.35 tm with a deflection of 45%. The number of fendersused for ships weighing 33,193 tons is 19.3 units and for ships weighing 56,545 tons is 20.6 units, so for a totalpier length of 250 meters, the number of fenders used is 22.7 units rounded up to 23 units.

ANALISIS KUAT TEKAN BETON MENGGUNAKAN LIMBAH BOTOL KACA SEBAGAI PENGGANTI SENAGIAN AGREGAT HALUS DAN GULA MERAH SEBAGAI BAHAN TAMBAH / ADITIF BETON Achmad Pahrul Rodji; Sahat Martua Sihombing; Novrihan Tanjung
Jurnal Sipil Krisna Vol 8 No 2 (2022): JURNAL SIPILKRISNA
Publisher : Fakultas Teknik Universitas Krisnadwipayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61488/sipilkrisna.v8i2.162

Various studies in the field of concrete were carried out in an effort to improve the quality of concrete, thetechnology of the research and experiment materials intended to answer the increasingly high demands on the useof concrete.One way to reduce excessive mining of natural materials is by utilizing waste glass bottles and brown sugar,especially glass bottles which area lot of waste and accumulate in the environment around the house.This study aims to analyze the compressive strength of concrete using wasteglass bottles and brown sugar as a substitute for fine aggregate and water. Mix Design in glass bottles and brownsugar as a substitute for fine aggregate and water. Mix Design in This study uses the SNI 2000 method. Thecomposition of glass bottle waste is 5% and 10% to fine aggregate while brown sugar is 0.25% and 0.50% againstwater. The specimens were cylindrical in shape with a diameter of 15 cm and a height of 30 cm as many as 24specimens aged 7, 14 and 28 days. The results of the average compressive strength using glass bottle waste and brown sugar with a composition of 5% and 10% for fine aggregate and 0.25% and 0.50% for water, namely for variation 1 of 8.98Mpa, 11.74 Mpa , 16.06 Mpa while for variation 2 it is 7.45 Mpa, 9.87 Mpa, 14.99 Mpa. then the percentagereduction of concrete variations 1 and 2 against normal concrete is 4.02%, 5.86%, 3.94% and 5.55%, 7.73%,5.01%.

ANALISIS STRUKTUR BANGUNAN TERHADAP ELEMEN HORIZONTAL PADA GEDUNG PENYIMPANAN KPK JAKARTA Sahat Martua Sihombing; Gita Puspa Artiani; Lydia Darmiyanti
Jurnal Sipil Krisna Vol 8 No 2 (2022): JURNAL SIPILKRISNA
Publisher : Fakultas Teknik Universitas Krisnadwipayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61488/sipilkrisna.v8i2.163

A storage building is a structure that has specified requirements for usage as a container or location anda high load value. As a result, it is crucial to check or examine the building's structure. There are two separateparts to the building structure, one of which is horizontal. Elements that bear loads working transversely andtransfer the load to a supporting column are known as horizontal elements, sometimes known as bending elements.It is crucial to assess the safety of horizontal elements like beams and slabs since they serve as the floor's bondingand reinforcing frames in superstructures. This final project attempts to assess the shear forces and momentsapplied to the floor slabs and beams, the reinforcement ratio applied to the beams, and the beam deflections thatresult. The presentation in this study makes use of ETABS v.17.0.1 software and secondary data. The 3rd floorhas the largest shear force in the X direction with a value of 59.3292 kN and the largest moment in the X directionwith a value of 128.9298 kN-m, while the 3rd floor has the largest shear force in the Y direction with a value of47.1916 kN and the largest moment in the Y direction with a value of 92.7026 kN-m. According to the result ofETABS v.17.0.1, the beam reinforcement ratio is 0.82 percent, and the maximum deflection permit limit formulauses SNI 2847:2019 to get the permitted deflection value of 25 mm.

ANALISIS PENGARUH HAMBATAN SAMPING TERHADAP KINERJA KAPASITAS LALU LINTAS PADA JALAN IR. H. JUANDA BEKASI TIMUR Sukadi; Sahat Martua Sihombing; Lydia Darmiyanti
Jurnal Sipil Krisna Vol 8 No 2 (2022): JURNAL SIPILKRISNA
Publisher : Fakultas Teknik Universitas Krisnadwipayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61488/sipilkrisna.v8i2.166

Road is a land transportation infrastructure that plays an important role in the land transportation sector, withvery rapid economic growth, there is a surge in road traffic users, while the capacity and performance of roadsthat accommodate the flow of vehicles is not comparable to the surge. The growth of small businesses along theroad makes traffic performance decrease, road side constraints have a very large role on road performance andcapacity. Pedestrians, people crossing, entering and exiting vehicles, vehicles slowing down and also vehiclesstop on the side of the road. Jalan Ir. H. Juanda Bekasi has become the research location, because this road sideactivity is relatively high, causing delays in vehicle speed or traffic jams. The number of access roads in and outof housing is also one factor other than those mentioned above. This research was conducted for 7 (seven days),starting on Monday, November 26, 2018 until December 2, 2018. Retrieval of data through direct observation onthe research object, for traffic volume, vehicle speed and side obstacle data are divided per 15 minutes . Dataanalysis was then performed namely traffic volume, speed, density and road capacity using the Indonesian roadcapacity manual (MKJI) 1997. From the results of the study, obtained a value of capacity without side obstaclesof 1520 Smp/hour, and with side obstacles of 1458 smp/hours, then obviously the service capacity of the road hasdecreased, (DS) by 1.39 from the highest daily yield, and calculated (DS) for the next five years by 2.19 Thisshows that the road side barriers on Ir. H. Juanda Bekasi is very high and very influential on the performance oftraffic capacity.

PERENCANAAN SUMUR RESAPAN UNTUK PENGENDALIAN BANJIR DI WILAYAH KECAMATAN PASAR REBO, JAKARTA TIMUR Gita Puspa Artiani; Achmad Pahrul Rodji; Sahat Martua Sihombing; Yonas Prima Arga; Gali Pribadi
Abdimas Galuh Vol 5, No 2 (2023): September 2023
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/ag.v5i2.10195

Kecamatan Pasar Rebo merupakan salah satu kecamatan di Kota Administrasi Jakarta Timur yang terletak antara 106049’35” Bujur Timur dan 06010’37” Lintang Selatan, Luas wilayah kecamatan ini seluas 12,98 km2 (6,88 persen dari luas wilayah Kota Jakarta Timur) yang terbagi dalam 5 (lima) kelurahan meliputi: Kelurahan Baru, Kelurahan Cijantung, Kelurahan Gedong, Kelurahan Kalisari, dan Kelurahan Pekayon. Kecamatan Pasar Rebo termasuk kedalam kawasan rawan pergesaran tanah berdasarkan data Badan Penanggulangan Bencana Daerah (BPBD) DKI Jakarta. Pada tanggal 10 Oktober 2020, banjir akibat hujan deras berada di jalan Lewa RT 14 RW 08 Kelurahan Pekayon setinggi 50 sentimeter, jalan Swadaya dan jalan Karya Bakti RT 10 RW 11 Kelurahan Cijantung setinggi 1,2 meter, dan jalan Cakrabuawana dan Manunggal Kelurahan Kalisari 1 meter. Permasalahan ini tidak terlepas terhadap belum terintegrasi sistem drainase dengan baik, perilaku masyarakat membuang sampah, pendangkalan saluran, kepadatan bangunan menyebabkan tidak terdapat resapan air, dataran rendah. Sumur resapan adalah salah satu konsep sederhana yang efektif untuk mengurangi aliran permukaan yang dapat menyebabkan banjir dan merupakan kegiatan konservasi sipil teknis sederhana berupa sumuran yang berfungsi untuk menampung, menahan dan meresapkan air permukaan (run-off) ke dalam tanah (akuifer) untuk meningkatkan jumlah dan posisi muka air tanah. Adapun hasil dari pengabdian kepada masyarakat ini berupa kegiatan FGD yang kemudian menjadi bahan pertimbangan untuk finalisasi pembuatan rekomendasi konsep dalam pembuatan desain saluran drainase selanjutnya untuk mendorong pihak-pihak terkait sesuai bidangnya (OPD Pemda), untuk mewujudkan sumur resapan sebagai usulan program kegiatan.

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