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ANALISIS PENGARUH PENGGUNAAN ABU BATU APUNG SEBAGAI PENGGANTI FILLER UNTUK CAMPURAN ASPAL Kumalawati, A.; Sir, Tri M. W.; Mastaram, Yovinianus
Jurnal Teknik Sipil Vol 2, No 2 (2013): Jurnal Teknik Sipil
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East Nusa Tenggara province is a region abundant with pumice content. Pumice is a frothy lava composed of compacted glass pyroclastic with very mikrovesikular wall extrusive igneous volcanoes bubbling, very thin and translucent and that is a common product of volcanic eruption and the general shape of the zones of the upper silicate lava They uses of pumice, among others: metal , raw material, lightweight brick, paint, plaster material, ceramics, sand paper raw materials and much more, pumice stone contain silica so that it can be used as a subtitude filler in asphalt mixture. This research was conducted to determine the effect of using pumice stone ash as a substitute filler in asphalt mixture. It will be seen from the value of stability and flow by using Marshall. There are several steps in Marshall’s method need to be done include: testing gravity, aggregate gradation planning, aggregate composition plane, aggregate bulk density calculation, the maximum mixture specific test and the calculations of the parameter values in Marshall’s method. The results of these research are finding higher levels of filler in asphalt mixture, the higher value of the stability while the value of flow decreases with increasing value of filler content in the asphalt mixture. Based on test results, the value of the variation of filler that meets spesifications Marshall’s is 1% and 2%, as only two variations of these filler levels that meet all of parameter value Marshall.

ANALISIS PERBANDINGAN GAYA GESER TINGKAT, GAYA GESER DASAR, PERPINDAHAN TINGKAT DAN SIMPANGAN ANTAR TINGKAT AKIBAT BEBAN GEMPA BERDASARKAN Cornelis, Remigildus; Bunganaen, Wilhelmus; Tay, Bonaventura Haryanto Umbu
Jurnal Teknik Sipil Vol 3, No 2 (2014): Jurnal Teknik Sipil
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Objek pada penelitian ini adalah model struktur delapan belas tingkat yang diletakkan pada enam lokasi yang memiliki karakteristik situs yang berbeda-beda berdasarkan SNI 1726-2012 dan berada pada wilayah gempa 5 berdasarkan SNI 1726-2002 dengan kondisi tanah keras, tanah sedang dan tanah lunak. Struktur dimodelkan menggunakan program ETABS versi 9.0 dan dilakukan perhitungan dengan metode analisis dinamis respon spektrum 3D berdasarkan SNI 1726-2002 dan SNI 1726-2012 untuk memperoleh gaya geser, perpindahan tingkat dan simpangan antar tingkat. Hasil analisis menunjukkan bahwa dari enam lokasi yang ditinjau, pada kondisi tanah keras, nilai gaya geser, perpindahan tingkat dan simpangan antar tingkat untuk Bandar Lampung, Biak, Jayapura, Manado dan Padang berdasarkan SNI 1726-2002 lebih kecil dari SNI 1726-2012 sedangkan untuk Kupang nilai gaya geser, perpindahan tingkat dan simpangan antar tingkat berdasarkan SNI 1726-2002 lebih besar dari SNI 1726-2012. Pada kondisi tanah sedang, nilai gaya geser, perpindahan tingkat dan simpangan antar tingkat untuk Biak, Jayapura, Manado dan Padang berdasarkan SNI 1726-2002 lebih kecil dari SNI 1726-2012 sedangkan untuk Bandar Lampung dan Kupang nilai gaya geser, perpindahan tingkat dan simpangan antar tingkat berdasarkan SNI 1726-2002 lebih besar dari SNI 1726-2012. Kemudian pada kondisi tanah lunak, nilai gaya geser, perpindahan tingkat dan simpangan antar tingkat untuk Biak, Jayapura dan Padang berdasarkan SNI 1726-2002 lebih kecil dari SNI 1726-2012 sedangkan untuk Bandar Lampung, Kupang dan Manado nilai gaya geser, perpindahan tingkat dan simpangan antar tingkat berdasarkan SNI 1726-2002 lebih besar dari SNI 1726-2012.

PENGUJIAN KUAT TEKAN DAN KUAT LENTUR MATERIAL PENGGANTI KAYU DENGAN CAMPURAN SERAT NILON Hunggurami, Elia; Sir, Tri M. W.; Lau, Maria I. K. K.
Jurnal Teknik Sipil Vol 4, No 2 (2015)
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Kayu dimanfaatkan untuk memenuhi berbagai kebutuhan manusia sebagai bahan konstruksi. Pemanfaatan ini berdampak pada penebangan hutan dan menimbulkan kerusakan lingkungan. Untuk itu, diperlukan alternatif lain bahan konstruksi sebagai pengganti kayu. Penelitian ini bertujuan untuk mengetahui kuat tekan dan kuat lentur dari material pengganti kayu dengan variasi campuran serat nilon. Penelitian ini dilakukan dengan metode eksperimen dengan 4 variasi campuran serat nilon yaitu: campuran 5%, 10%, 15%, dan 20% dari berat semen dengan perbandingan campuran 1 semen : 0.25 bubuk kertas : 1.25 air. Untuk uji tekan dibuat 12 benda uji dengan ukuran 200 mm x 50 mm x 50 mm. Benda uji yang digunakan pada pengujian kuat lentur adalah 12 benda uji dengan ukuran 600 mm x 50 mm x 50 mm. Dari hasil penelitian dan analisis data diperoleh nilai kuat tekan dan kuat lentur dari ke empat campuran tersebut adalah sebagai berikut: untuk hasil pengujian kuat tekan dari material pengganti kayu untuk variasi campuran serat nilon 5%, 10%, 15%, dan 20% berturut-turut adalah 4,58 MPa, 5,33 MPa, 6,90 MPa, 7,07 MPa. Sedangkan untuk Hasil pengujian kuat lentur material pengganti kayu dengan campuran serat nilon dengan variasi 5%, 10%,15% dan 20% campuran serat nilon dari berat semen berturut-turut adalah 3,45 Mpa 7,45 MPa, 9,25 MPa dan 10,65 MPa. Dengan demikian, hasil pengujian menunjukan peningkatan kekuatan, baik itu kuat tekan maupun kuat lentur ketika terjadi penambahan presentasi jumlah campuran serat nilon hingga 20% terhadap berat semen. Wood are used for meet human needs as a construction material. The utilization of wood impact to deforestation and environmental damage. Therefore, it needed another alternative construction materials instead of wood. This research aims to know the compressive strength and bending strength of the alternate materials of wood with variations mixture of nylon fibers. This research was conducted by an experimental method that used 4 mixtures of variation, namely: mixtures of nylon fiber 5%, 10%, 15% and 20% with the ratio mixture is: 1 cement : 0.25 pulp 1.25 water. Compressive strength testing was made 12 sampels with size 200 mm x 50 mm x mm. The sampels used in the bending test are 12 sampels with a size 200 mm x 50 mm x mm. From the research and analysis of data obtained by the compressive strength and bending strength testing of the mixture into four is as follows: for the compressive strength test results of the alternate material of with with mixture of nylon fiber 5%, 10%, 15% and 20% was 4.58 MPa, 5.33 MPa, 6.90 MPa and 7.07 MPa. As for the bending test results for a mixture of nylon fiber 5%,10%, 15% and 20% was 3,45 Mpa 7.45 MPa, 9.25 MPa 10.65 MPa. Thus, the test results showed an increase in both of compressive strength and bending strength, when an adition of a mixture of nylon fibers presentation amount to 20% of the weight of cement for the alternate material of wood.

PENGARUH SUBSTITUSI PARSIAL SEMEN DENGAN ABU TERBANG TERHADAP KARAKTERISTIK TEKNIS BETON Simatupang, Partogi H.; Sir, Tri M. W.; Kurniaty, Anna S.
Jurnal Teknik Sipil Vol 5, No 2 (2016): JURNAL TEKNIK SIPIL
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Partly or totally substitution of cement with another environmentally products in making concrete become the alternative. In this research the composition of the fly ash used as a partial replacement of cement in concrete as much as 40% out of total mass of cement (High Volume Fly Ash Concrete) and then will be compared with normal concrete about the technical characteristics of the two types of concrete. The purpose of this research was to determine the effect of partial replacement of cement with fly ash in concrete on technical characteristics of concrete which are specific gravity of concrete, compressive strength of concrete and concrete abrasion. The results obtained by the technical characteristics of concrete at the concrete age of 56 days for normal concrete has an average of specific gravity is 2434.39 kg/m³ with an average of compressive strength is 22.72 MPa and concrete abrasion percentage is 19.74%, for HVFA concrete has an average of specific gravity is 2407.22 kg/m³ with an average of compressive strength of 22.51 MPa and concrete abrasion percentage is 20.12%. The result of this research shows that the effect of the partial replacement of cement with fly ash in concrete produce the technical characteristics of concrete which are specific gravity of concrete, compressive strength of concrete and concrete abrasion are similliar with the technical characteristics of normal concrete.

PENGGUNAAN PASIR WEOL SEBAGAI BAHAN CAMPURAN MORTAR DAN BETON STRUKTURAL Kadimas, Irenius O.R; Pah, Jusuf J.S.; Bella, Rosmiyati A.
Jurnal Teknik Sipil Vol 6, No 1 (2017)
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Concrete is formed from a mixture of water, cement, sand and coarse aggregate. The quality of sand affects the quality of the concrete. Weol sand is aggregate in the subdistrict Ruteng, Manggarai district, which is used by people for mortar and non-structural concrete. This is because the location of which is closer than the other sand. This study aims to determine the compressive strength of mortar and concrete using Weol sand.The method of implementation refers to the SNI 03-2834-2000 (BSN 2000) about Manufacturing Process Plan Mixture for Normal Concrete and SNI 03-6825-2002 (BSN 2002b) about The Test Method of Compressive Strength Portland Cement Mortar. The mortar cube has size 5x5x5 with composition 1PC: 2Psr, 1PC: 4Psr, 1PC: 6Psr and 1PC: 8Psr. The diameter and high of cylindrical concrete is 15 cms and 30 cms. Mortar compressive strength testing performed at 3 days, 7 days, 14 days and 28 days while the concrete at 7 days, 14 days and 28 days.The test results show that the compressive strength of mortar using Weol sand for each composition and the compressive strength of concrete using Weol sand for each quality plan is larger than mortar and concrete using Takari sand.

EVALUASI KERAPATAN JARINGAN STASIUN HUJAN TERHADAP KETELITIAN PERKIRAAN HUJAN RANCANGAN PADA SWS NOELMINA DI PULAU TIMOR Krisnayanti, Denik Sri
Jurnal Teknik Sipil Vol 1, No 2 (2011)
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ABSTRACTRaining is the main component of hydrology process. The quality and quantity ofthe raining data determine the degree of precision on the planning and preservation ofwater resources. To get the accurate data, there are many things will be focused such asthe condition of raining station data, density and scattered station and the accuraterecording itself. In this research, the pattern of the net of raining recording station thatwill be used is the Kagan Net Method and the triangles of Kagan will be drawned byusing AutoCAD 2007.Timor island has two catchment area according to the river such as Benanain’scatchment area and Noelmina’s catchment area which have so many raining recordingstations scattering around it. This research will focus on Noelmina river flow area(2.036,544 km2) which has six raining recording stations.Based on analytical results, the coefficient of correlation on daily raining is0,389 and monthly raining is 0,555. These values are the mean values of all rainingrecording station on Noelmina river flow area. Based on WMO (World MeteorologicalOrganisation) for tropical zone such as Indonesia, the density of the nets should be 250-1000 km2/station, so that the density of the nets now has enough the standard that is339,424 km2/station, but the amount of existing station is less than the amount of stationrequired by Kagan method and it’s necessary to get more raining stations. For eacherror of minimum values 5% and 10% for daily raining are needed 39 stations with thedensity 52,219 km2/station and 11 stations with the density 185,140 km2/station.Meanwhile for each error minimum values 5% and 10% for monthly raining are needed37 stations with the density 55,042 km2/station and 10 stations with the density 203,654km2/station. The amount of stations is not the only one factor that effecting the precisionof raining forecasting, but also there would be the pattern of scattering of rainingrecording stations.ABSTRAKSIKomponen masukan utama dalam proses hidrologi adalah hujan. Kualitas dankuantitas data hujan menentukan kualitas ketepatan perencanaan dan pengelolaansumber daya air sehingga untuk memperoleh data yang akurat perlu diperhatikankondisi stasiun hujan, jumlah stasiun hujan, kerapatan dan pola penyebaran sertaketelitian pencatatannya. Pada penelitian ini metode pola jaringan yang digunakan yaitumetode jaringan Kagan dan penggambaran simpul-simpul segitiga Kagan menggunakanAutoCAD 2007.Pulau Timor memiliki dua wilayah sungai yakni Wilayah Sungai (WS) Benanaindan Wilayah Sungai (WS) Noelmina dengan jumlah pos stasiun hujan yang cukupbanyak dan menyebar. Penelitian dikhususkan pada DAS Noelmina yang mempunyaienam pos stasiun hujan dengan luas areal 2.036,544 km2.Berdasar dari hasil analisis, didapatkan koefisien korelasi untuk hujan harian 0,389 danhujan bulanan 0,555. Nilai koefisien korelasi ini adalah nilai rata-rata pada semuastasiun hujan pada DAS Noelmina. Berdasar pedoman yang dikeluarkan WMO (WorldMeteorological Organisation) untuk daerah tropik seperti Indonesia, dalam keadaanyang sulit dianjurkan kerapatan sebesar 250-1000 km2/stasiun sehingga kerapatanstasiun hujan untuk kondisi DAS Noelmina sekarang cukup memenuhi syarat yakni339,424 km2/stasiun, namun jumlah stasiun yang ada masih lebih kecil dibandingkandengan jumlah stasiun yang dituntut dengan cara Kagan sehingga diperlukanpenambahan jumlah stasiun. Untuk masing-masing kesalahan perataan minimum 5%dan 10% pada hujan harian, dibutuhkan 39 stasiun hujan dengan kerapatan 52,219km2/stasiun dan 11 stasiun hujan dengan kerapatan 185,140 km2/stasiun. Sedangkan,untuk masing-masing kesalahan perataan minimum 5% dan 10% pada hujan bulanandibutuhkan 37 buah stasiun hujan dengan kerapatan 55,042 km2/stasiun dan 10 buahstasiun hujan dengan kerapatan 203,654 km2/stasiun.

STUDI PARAMETRIK BETON BERTULANG DUA ARAH Atok, Dominikus K. I.; Ramang, Ruslan; Simatupang, Partogi H.
Jurnal Teknik Sipil Vol 7, No 1 (2018): Jurnal Teknik Sipil
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Struktur pelat memiliki peranan yang begitu penting menjadi alasan dilakukannya penelitian ini, Penelitian ini betujuan mengetahui ukuran maksimum yang dapat dicapai pelat beton bertulang dua arah dan peruntukan pelat berukuran maksimum jika dikaitkan dengan fungsi bangunan. Penelitian menggunakan bantuan program komputer SAFEv.12untuk menganalisa seluruh data penelitian yakni variasi geometri pelat, variasi ketebalan dan mutu beton pelat, beban mati serta beban hidup guna memperoleh output berupa lendutan. Ukuran maksimum yang dapat dicapai pelat beton bertulang dua arah dengan rasio panjang bentang sama dengan satu (ly/lx=1) ialah pelat 8,0 m x 8,0 m setebal 25 cm dengan mutu beton K-300 (fc’=24,900 MPa). Beban hidup terbesar yang dapat diterima oleh pelat maksimum 8,0 m x 8,0 m ialah 3,83 kN/m2, untuk beban hidup yang lebih besar intensitasnya dipastikan lendutan pada permukaan pelat maksimum 8,0 m x 8,0 m akan melebihi lendutan aman. Sedangkan ukuran maksimum yang dapat dicapai pelat beton bertulang dua arah dengan rasio panjang bentang sama dengan dua (ly/lx=2) ialah pelat 4,0 m x 8,0 m setebal 25 cm dengan mutu beton K-300 (fc’=24,900 MPa). Beban hidup terbesar yang dapat diterima oleh pelat maksimum 4,0 m x 8,0 m ialah 11,97 kN/m2.The plate or slab structure has such an important role, that’s the reason for do this study, researchers want to know the maximum size a two-way bone-reinforced concrete plate can achieve, and to know are the maximum plate or slab can be used for all building function according to SNI-1727-2013. The study used SAFEv.12 computer program to analyze all the research data like variation of plate geometry, variation of thickness and quality of concrete plate, dead load and live load to obtain output of deflection. The maximum size that a two-way bone-reinforced concrete plates can achieve with the ratio of the length of the span is equal to one (ly / lx = 1) is 8.0 mx 8.0 m thickness 25 cm with the quality of K-300 (fc '= 24,900 MPa) . The largest acceptable live load by the maximum 8.0 m x 8.0 m plates is 3.83 kN / m2, for larger live loads the intensity is ensured that the deflection at the maximum plate surface of 8.0 m x 8.0 m will exceed the safe deflection . While the maximum size that a two-way bone-reinforced concrete plates can achieve with a ratio of length of span is equal to two (ly / lx = 2) is a 4.0 m x 8.0 m thickness of 25 cm with a K-300 (fc '= 24,900 MPa ). The largest acceptable live load by the maximum plate of 4.0 m x 8.0 m is 11.97 kN / m.2

PERENCANAAN LAPIS TAMBAHAN PERKERASAN JALAN DENGAN METODE HRODI (RUAS JALAN MELOLO – WAIJELU) Kumalawati, Andi
Jurnal Teknik Sipil Vol 1, No 3 (2012)
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ABSTRACTThe condition of street damage at route of Melolo – waijelu (Km 53+130, Km68+133) shown about: soft crake, surging counter, and decline surface. All of thoseare resistance factor for user trafic road that can becaused the negative impact ondevelopment region aroud. This paper is aimed to explain the design thickness layerof overlay. The design process is using Hot Rolled Overlay Design for Indonesia(HRODI) method and outline of design activity consist on: collecting data, and dataanalyze. The results that found were shown about overlay thickness layers arevarying, started from 3 cm, 7 cm, until 9 cm are composite on HRS (Hot RolledSheet) type and ATBL (Asphalt Treated Base Leveling).ABSTRAKKondisi jalan yang rusak pada ruas jalan Melolo – Waijelu (Km 53+130, Km 68+133)yang nampak : patahan halus, kepingan bergelombang dan turunnya permukaan jalan.Semua hal tersebut diakibatkan faktor perlawanan dari pengguna jalan yang dapatmengakibatkan dampak negatif pada pengembangan daerah sekitar. Tulisan inimenjelaskan tentang perencanaan ketebalan lapis permukaan jalan. Prosesperencanaan ini menggunakan metode Hot Rolled Overlay Design for Indonesia(HRODI), dimana metode dan garis besar aktivitas perencanaan terdiri dari :pengumpulan data dan analisis data. Hasilnya memperlihatkan bahwa ketebalan lapispermukaan (lapis tambahan) jalan diperoleh hasil yang bervariasi, dimulai dari 3 cm,7 cm sampai 9 cm adalah campuran HRS (Hot Rolled Sheet) dan ATBL (AsphaltTreated Base Leveling).

ANALISIS ATAS JARINGAN PERPIPAAN KELURAHAN KOLHUA KOTA KUPANG Bunganaen, Wilhelmus; Krisnayanti, Denik S.; Laleb, Fenny L.
Jurnal Teknik Sipil Vol 7, No 2 (2018): Jurnal Teknik Sipil
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Sumber mata air Kolhua saat ini dikelola oleh PDAM Kabupaten Kupang, namun dalam teknisnya sumber air bersih disalurkan ke wilayah tertentu saja yang sudah memiliki jaringan perpipaan, dalam hal ini perumahan BTN Kolhua; sedangkan area perumahan warga lainnya tidak tersuplai. Elevasi sumber mata air yang lebih rendah dari daerah Kolhua menjadikendala utama dalam pendistribusian air bersih di Kelurahan Kolhua.Pengaliran gabungan merupakan solusi yang harus ditempuh agar air bersih dapat terdistribusi merata ke seluruh masyarakat di Kelurahan Kolhua. Perhitungan proyeksi jumlah penduduk menggunakan Metode Aritmatik, menghitung pertambahan jumlah fasilitas, serta perhitungan proyeksi kebutuhan air. Hasil proyeksi jumlah penduduk zona K1 = 199 orang, zona K2 = 157 orang, zona K3 = 3.332 orang, zona K4 = 512 orang, zona K5 = 2.780 orang, zona K6 = 1.217 orang. Besar kebutuhan air pada tahun rencana zona K1 = 0,3108 ltr/dtk, zona K2 = 0,2452ltr/dtk, zona K3 = 5,8083 ltr/dtk, zona K4 = 0,7997 ltr/dtk, zona K5 = 4,3422ltr/dtk dan zona K6 = 2,4302ltr/dtk.Kolhua spring is currently managed by PDAM Kupang regency, but in technical sources of clean water channeled to certain areas that already have a pipeline network, in this housing BTN Kolhua; while other residential areas are not supplied. Elevation of lower springs from the Kolhua region and the drainage system that relies on gravity is a major obstacle in the distribution of clean water.Combined drainage is a solution that must be taken so that clean water can be distributed evenly to all community in Kolhua village. Calculation of population projection using Arithmetic Method,calculate the increase of the facilities, and calculate of projected water needs. The projected population of zone K1 = 199 people, zone K2 = 155 people, zone K3 = 3.309 people, zone K4 = 507 people, zone K5 = 2.799 people, zone K6 = 1.211 people. The water requirement in the year plan of zone K1 = 0,3108 ltr / sec, zone K2 = 0,2421 ltr / sec, zone K3 = 6,5472 ltr / sec, zone K4 = 0,7919 ltr / sec, zone K5 = 4,3719 ltr / sec and zone K6 = 2,1443 ltr / sec

PENGGUNAAN GYPSUM BLOCK UNTUK MENGUKUR KADAR AIR PADA TANAH LEMPUNG Sir, Tri M.W.; Bolla, Margareth E.; Nesnay, Danial
Jurnal Teknik Sipil Vol 1, No 4 (2012)
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The test of soil moisture content that most often method applied is gravimetric. By the development of sciences, nowdays a sensor device test on soil moisture content that is called gypsum block. Such devices could be directed inplanted in the place where the moisture content would be measured. This research aimed at getting the calibration equation and correlation coefficient of gypsum block and to determine whethergypsum block could be used as a test of moisture content of clay. The kind of sample was taken from Oebelo village, Central Kupang Subdistrict, East Nusa Tenggara and variations of water used were 15%, 20%, 30.7% and 40%, and total samples were 20. The results of the research revealed that calibration equation of gypsum block to the measurements for 7 days (constant resistantion) was Y=1.323x-0.54 by r = 0.835. The results of field testing and compared with gravimetric method obtained difference moisture content value in the range of 0.26%-2.56%. From the results it could be concluded that the gypsum block could be used as a device to measure the moisture content of clay.

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