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ENERGY DISSIPATION OF ECCENTRICALLY-BRACED-FRAME (EBF) WITH DIFFERENT LEVEL OF ECCENTRICITY Pah, Jusuf J. S.; Oematan, Yanes E.
Jurnal Teknik Sipil Vol 1, No 3 (2012)
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ABSTRACTThis research aimed at eliciting the form of relation that exists between level ofeccentricity (e/L) and energy dissipation (Ed) of an Eccentrically Braced Frame (EBF).It continued a previous research that studied relative stiffness of an EBF. Three sets ofEBF specimen were analysed by the merit of SAP2000 v9.0.1 computer-software toobtain range of inelastic drifts and its corresponding range of lateral loads. Specimensvary in level of eccentricity (e/L) and bay to height ration (h/L). Prior to it, a formulathat calculates energy dissipation of a lateral resistant structure as product of lateralloads and the corresponding drifts was developed and used throughout the research forthe purpose of quantifying Ed. Each specimen was alternatively loaded in directionconfronting and concurring the bracing component. It was found that there was nosignificant difference in the form of relation between e/L and Ed, when lateral loadapplied confronting bracing component from when the same load applied concurringbracing component. Forms of each graph that relates e/L to Ed was presented andshown to consists of two parts, divided at e/L = 0.2; suggesting that e/L = 0.2 might bethe point where level of eccentricity and relative stiffness of an EBF reach optimum.Mathematical equations for the relation between e/L and Ed of an EBF were thendeveloped. In spite of this, an inconsistency with the prevalent theory was observed,hence the relations between e/L and Ed concluded so far were contested until furtherresearches be made for clarification.

OPTIMALISASI RUTE PENGANGKUTAN SAMPAH BERBASIS SISTEM INFORMASI GEOGRAFIS DI KUPANG Pratama, Albiyan P.; Frans, John H.; Utomo, Sudiyo
Jurnal Teknik Sipil Vol 8, No 1 (2019): Jurnal Teknik Sipil
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Permasalahan lingkungan yang umumnya sering terjadi adalah pengelolaan sampah yang kurang baik.Perlu dilakukan penanganan yang serius dalam pengelolaan sampah terutama penentuan rute dalam pengangkutan sampah.Penelitian ini dilakukan dengan menganalisa proses alur pergerakan sampah dari masyarakat hingga berakhir di TPA agar dapat diketahui masalah yang terdapat dalam proses pengelolaan sampah di Kota Kupang. Kemudian dilakukan perhitungan jumlah produksi sampah berdasarkan jumlah penduduk kota Kupang pada tahun 2016 diperoleh jumlah produksi sampah sebesar 585,447 m3/haridan memprediksi jumlah produksi sampah dalam kurun waktu 5 tahun kedepan dengan perbandingan 3 metode dimana metode yang paling kritis adalah metode eksponensial dengan jumlah penduduk sebanyak 455.035 orang dan jumlah produksi sampah sebesar 473,010 m3/hari, selanjutnya dilakukan perhitungan kebutuhan jumlah TPS berdasarkan jumlah produksi sampah dan diketahui bahwa jumlah TPS masih dapat menampung jumlah produksi sampah untuk seluruh penduduk kota Kupang tetapi dalam hal persebarannya masih belum merata khususnya pada kecamatan Alak, Kelapa Lima, dan Kota Raja. Rute angkutan persampahan diperoleh berdasarkan hasil analisis saving Solver Add-Ins. Setelah diperoleh koordinat TPS dan rute angkutan persampahan divisualisasikan kedalam WEBGIS.Common environmental problems that often occur are poor waste management. A serious handling of waste management is needed, especially in determining the route in transporting wast. This research was conducted by analyzing the process of the movement of garbage from the community to end in TPA in order to know the problems contained in the process of waste management in Kupang City. Then the amount of waste production based on the total population of Kupang city in 2016 obtained the amount of waste production of 585.447 m3 / day and predicted the amount of waste production in the next 5 years with a comparison of 3 methods where the most critical method is the exponential method with a population of 455,035 people and the amount of waste production of 473,010 m3 / day, then calculated the needs of the number of TPS based on the amount of waste production and it is known that the number of TPS can still accommodate the amount of waste production for the entire population of Kupang city but in terms of its distribution is still uneven, especially in Alak, Kelapa Lima, and Kota Raja. The route of garbage transportation can be obtained based on saving Solver Add-Ins analysis. After the TPS coordinates are obtained and the trash routes are visualized into the WEBGIS.

KAJIAN PERSEPSI PELAKU JASA KONSTRUKSI TENTANG KEGIATAN PENGADAAN JASA KONSTRUKSI Messah, Yunita A.; Asmat, Maria Y.Y.; Rizal, H. A.
Jurnal Teknik Sipil Vol 2, No 1 (2013): Jurnal Teknik Sipil
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The The implementation of e-procurement has been used since 2010 in NTT expecially in Kupang and believed could bring up effectively, fairly, efficiently , transparently andakuntability so it is expected to could minimalize the deceitful happened. Therefore it is needed to known if there was the deceitful of construction service conventionally and wich steps in procurement of construction service wich giving chance for deceitful to be happened and could e-procurement could minimalize the deceitful happened on that steps. This research was conducted on service users in Department of public work NTT province and Department of public work in Kupang City and service provider wich has central office and branch office in Kupang city. The technique of data processing and analysis was used Likert Scale. From the result of research could be known that respondent agree there was deceitful on the construction service conventionally with the percentage of the user service is about 77,33%, the contractor is about 81,84% and the consultant is about 78,96%. From the deceitful of conventionall system, it have five step on the construction service conventionall wich often happened is the auction announcement. The input of proposal document the provement of qualification, clarification and negotiation, and winner announcement. From those five steps, three of those were the steps those of auction announcement the input of proposal document and winner announcement could be minimalized the deceitful by e-procurement. While on the step of the provement of qualification, clarification and negotiation it could not minimalized by the e-procurement because there is still happening of the direct meeting in this steps.

ANALISIS PARAMETER ALFA HIDROGRAF SATUAN SINTETIK NAKAYASU PADA DAS DI PULAU FLORES Krisnayanti, Denik S.; Frans, John H.; Halema, Emanuel U. M.
Jurnal Teknik Sipil Vol 8, No 2 (2019): Jurnal Teknik Sipil
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Pulau Flores termasuk wilayah sungai strategis nasional sehingga perlu dikaji data karakteristik DAS sebagai dasar perhitungan debit banjir metode Hidrograf Satuan Sintetik (HSS) Nakayasu. Metode ini sederhana karena parameter inputnya sedikit. Namun penerapan HSS Nakayasu dijumpai kesulitan dalam penentuan parameter ? (alfa) yang bersifat perkiraan. Penelitian ini bertujuan mengetahui pengaruh bentuk DAS di pulau Flores terhadap nilai alfa menggunakan Sistem Informasi Geografis (SIG), mengetahui persamaan parameter alfa sesuai karakteristik DAS di pulau Flores, dan mengetahui besar koefisien determinasi dan standar error persamaan alfa yang diperoleh. Hasil penelitian menunjukkan pengaruh bentuk DAS berdasarkan SIG yaitu DAS memanjang dan kompleks menghasilkan kisaran nilai alfa 1,5 - 2. Adapun bentuk DAS radial dan paralel berkisar antara 2 - 3. Nilai alfa rata-rata DAS kompleks sebesar 1,783, DAS memanjang sebesar 1,928, DAS paralel sebesar 2,076, dan DAS radial sebesar 2,131. Persamaan parameter ? (alfa) hasil regresi non linear diperoleh ? = 0,47.A0,036. L0,597 / Tg. Koefisien determinasi sebesar 0,989. Standar error hasil estimasi sebesar 2%.Flores Island is included in the national strategic river area, so data on watershed characteristics need to be assessed as the basis for calculating the Synthetic Unit Hydrograph (SUH) Nakayasu method. This method is simple because the input parameters are few. However, the application of SUH Nakayasu was found to be difficult in determining the parameter ? (alpha) which is approximate. The study aims to determine the effect of Flores island watershed shape against alpha value using Geographic Information System (GIS), modeling the parameter equation alpha according to watershed characteristics on the island of Flores, and knowing the magnitude of the coefficient of determination and standard error of alpha equations obtained. The results showed the effect of the watershed shape based on GIS namely longitudinal and complex watershed produced a range of alpha values of 1.5 - 2. The the shape of radial and parallel watersheds ranged between 2 - 3. The average alpha value of complex watershed was 1,783, longitudinal watershed was 1,928, parallel watershed is 2,076, and radial watershed is 2,131. The equation ? (alpha) results of non linear regression are obtained ? = 0.47.A0.036. L0,597 / Tg. The determination coefficient is 0.989. Standard estimated error is 2%.

PENDEKATAN BERORIENTASI OBJEK UNTUK PEMODELAN RESPONS SUATU HAMPARAN WIALAYAH PERKOTAAN TERHADAP HUJAN Pah, Jusuf J. S.; Freitas, Lucelina F. De A.; Hunggurami, Elia
Jurnal Teknik Sipil Vol 3, No 1 (2014): JURNAL TEKNIK SIPIL
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This work prepared a framework for an object-oriented urban terrain hydrological response model, and was meant to work in conjunction with the preparatory module for urban terrain data capturing, prepared in previous work. This framework engages five classes of object namely terrain cell, clock, precipitation, neighbor identifier and terrain platform. Based on the framework, an object-oriented prototypical model was constructed in MS-Excel environment to demonstrate the workability of the framework. Applying the model on an exemplar case shows that the module mimics well the hydrological response of the terrain and ca accurately replicate the surface run-off response of the terrain. The degree of accuracy was shown to be 95,15% just for a 9 cells modeling. Engaging terrain cells in greater number can yield more accurate results.

EVALUASI KENERJA JARINGAN IRIGASI BENDUNGAN TILONG KECAMATAN KUPANG TENGAH KABUPATEN KUPANG Ludiana, _; Bunganaen, Wilhelmus; Sir, Tri M. W.
Jurnal Teknik Sipil Vol 4, No 1 (2015): Jurnal Teknik Sipil
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Pembangunan Bendungan Tilong untuk memenuhi air baku dan air irigasi. Daerah Irigasi Tilong memiliki luas wilayah layanan irigasi sebesar 1.484 Ha diantaranya luas layanan 233 Ha untuk mengaliri daerah Fatukanutu. Dalam pengoperasiannya, jaringan irigasi mengalami beberapa kerusakan seperti rusaknya tubuh saluran akibat erosi tebing, tanaman liar dan sebagainya, sehingga peneliti ingin mengevaluasi kinerja jaringan irigasi Fatukanutu ditinjau dari aspek fisik, aspek pemanfaatan dan aspek operasional dan pemeliharaan (O & P). Metode yang dilakukan yaitu pengukuran debit inflow-outflow, dan analisis deskriptif jawaban kuesioner yang diuraikan dengan memberi nilai tertentu (skala likert) terhadap setiap variable aspek yang ditinjau. Jaringan Irigasi Fatukanutu di lihat dari aspek fisik memperoleh nilai rata-rata sebesar 2.93, Cukup Baik. Jaringan Irigasi Fatukanutu di lihat dari aspek pemanfaatan memproleh nilai rata-rata sebesar 1.98, Kurang Baik dan efektifitas pengelolaan lahan 45.55 Ha dari luas lahan rencana 233 Ha sebesar 19.55 % yaitu terdapat tiga sub ruas bagian yang difungsikan dan dimanfaatkan dalam pengelolahan lahan yaitu BT1, BFK3 dan BFK4, sedangkan 5 sub bagian lainnya tidak dimanfaatkan untuk pengelolaan lahan yaitu Sub Bagian BFK1, BFK2, BFK 5, BFK6, BFK7. Jaringan Irigasi Fatukanutu di lihat dari aspek O & P memproleh nilai rata-rata sebesar 1.65, Kurang Baik. Kinerja Jaringan Irigasi Fatukanutu secara keseluruhan berdasarkan ketiga aspek tersebut memperoleh nilai sebesar 2.19 Kurang Baik. Tilong dam of development is to fillup main water and irrigation water. Tilong Irrigation has an area of 1,484 ha irrigation services including extensive service area of 233 hectares to flow through Fatukanutu. thelrrigation Network in Fatukanutu has been operated since 2003 to drain the land in Hamlet Fatukanutu. In operation, the irrigation network suffered some damage as a result of damage to the channel bank erosion, weeds and etc, therefore the researchers wanted to evaluate the performance of irrigation networks in Fatukanutu. The performance evaluation is reviewed based on physical aspects, aspects of utilization and operational aspects and maintenance (O & M). The method performed is conducted by inflow-outflow discharge measurements, and descriptive analysis questionnaire described by giving a specific value (scale likert) for each variable aspect reviewed. Fatukanutu irrigation network in full view from the physical aspect has get an average value of 2.93, it was Very Good. Fatukanutu irrigation network in view of the aspects of utilization obtainan average value of 1.98, Less Good and effectiveness of land managemen thas a percentage of 19.55 % or 45.55 hectares of land area of 233 hectares plan where there are three sub-sections and sections that function is used in land management BT1, BFK3 and BFK4, while the other 5 sub-section is not used for land management namely sub-section BFK1, BFK2, BFK5, BFK6, BFK7. Fatukanutu Irrigation network from the aspects of O & M to obtainan average value of 1.65, Less Good. Irrigation Network Performance Fatukanutu overall based on three aspects to obtained a value of 2.19 Less Good.

ANALISA KELAYAKAN TARIF ANGKUTAN UMUM DALAM KOTA KUPANG Bolla, Margareth E.; Sir, Tri M. W.; Kase, Nene O. C.
Jurnal Teknik Sipil Vol 4, No 2 (2015)
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Penentuan besaran tarif angkutan membutuhkan penanganan dan kebijakan yang arif karena dapat menjembatani kepentingan penumpang selaku konsumen dan pengusaha selaku operator angkutan umum. Penelitian ini bertujuan untuk mengetahui Biaya Operasi Kendaraan (BOK) dan tarif yang layak diberlakukan untuk trayek angkutan umum Kota Kupang dengan jarak terpendek dan jarak terpanjang. Trayek Terminal Kupang-Penfui adalah trayek angkutan Kota Kupang dengan jarak terpanjang (28,30 km) yang melayani kawasan pertokoan, pendidikan dan kawasan perumahan, sedangkan trayek Terminal Kupang-Perumnas merupakan trayek angkutan kota dengan jarak terpendek (7,68 km) yang melayani kawasan pendidikan dan perumahan. Kedua trayek ini memiliki penentuan tarif angkutan yang sama yaitu Rp 2000,- untuk pelajar dan Rp 3000,- untuk masyarakat umum. Analisa BOK dan kelayakan tarif dilakukan dengan metode perhitungan berdasarkan Keputusan Direktur Jenderal Perhubungan Darat Nomor: SK.687/AJ.206 /DRJD/2002 tentang Pedoman Teknis Penyelenggaraan Angkutan Penumpang Umum di Wilayah Perkotaan Dalam Trayek Tetap dan Teratur. Hasil analisa BOK untuk trayek Terminal Kupang-Penfui sebesar Rp 2.165,42/penumpang dan tarif yang layak diberlakukan sebesar Rp 2.381,96/penumpang, sedangkan BOK untuk trayek Terminal Kupang-Perumnas sebesar Rp 1.956,31/penumpang dan tarif yang layak diberlakukan sebesar Rp 2.151,94/penumpang. Determining the amount of transport fares require wise policy for it can bridge the interests of passengers as consumers and businessman as public transport operators. This study aims to determine the Vehicle Operating Cost (VOC) and the decent fares applied in Kupang City for the shortest and the longest route. The route of Terminal Kupang-Penfui is the longest ones that has a distance of 28.30 km, that serves the shopping area and the educational and residential areas; while the route of Terminal Kupang-Perumnas is the shortest route (7.68 km) which serves educational and residential area. Nowadays these two routes have the same transport fares is Rp. 2000, - for students and Rp 3,000, - for public in general. VOC and feasibility fare analysis conducted by the method of the Directorate General of Land Transportation No. SK.687/AJ.206/DrJD/2002. The VOC analysis results for Terminal Kupang-Penfui route is Rp. 2165.42 / passenger and the decent fare imposed is Rp. 2381.96 / passenger; while the VOC for Terminal Kupang-Perumnas is Rp 1956.31 / passenger and the decent fare imposed is Rp. 2151.94 / passenger.

KAJIAN TARIF ANGKUTAN UMUM BERDASARKAN BIAYA OPERASIONAL KENDARAAN (BOK), ABILITY TO PAY (ATP) DAN WILLINGNESS TO PAY (WTP) DI KABUPATEN TTS Frans, John H.; Messah, Yunita A.; Issu, Nicky T.
Jurnal Teknik Sipil Vol 5, No 2 (2016): JURNAL TEKNIK SIPIL
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Public transport is being part of human prime need, and also a community transport system, but if we don?t manage it well, it makes problem for the supplier and public transport assessors. This research is to get to know the rate based on the VOC (Vehicle Operational Cost), the Ability To Pay (ATP), and Willingness To Pay (WTP) for the service of public transport in the town of Soe. The observed tract for this public transport is in the Haumeny Terminal to Pasar Inpress Kota Soe, and the New Terminal to Pasar Inpress Kota Soe. The VOC analysis will adapting two kinds of methods, those are from the public work department raisd in year 2005 (Pd.T-15-2005-B) and the method from Directorate General for land transportation number SK.687/AJ.206/DRJD/2002. And for the analysis of ATP and WTP are using the cross tabulation method and travel budget. Trough this research, is known that the real rate is bigger than the counting rate outcome. The real rate is Rp. 3000,00 while the counting rate based on the VOC from the directorate general for land transport is Rp.2205,27 and Rp.1962,14, and for the public work department is Rp. 2621,89 and Rp. 2059,73. The rate for ATP is Rp.2.752,05 and the rate for WTP is Rp. 1.995,50.

PERPINDAHAN MODA ANGKUTAN UMUM KE ANGKUTAN PRIBADI DI KOTA KUPANG Frans, John H.; Pah, Jusuf J. S.; Ikun, Maria G. A.
Jurnal Teknik Sipil Vol 6, No 2 (2017): Jurnal Teknik Sipil
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Jumlah angkutan pribadi di Kota Kupang saat ini terus meningkat, sedangkan jumlah angkutan umum di beberapa trayek menurun. Hal ini terjadi karena saat ini banyak masyarakat telah berpindah moda dari angkutan umum ke angkutan pribadi. Beberapa faktor yang mempengaruhi masyarakat berpindah yaitu kinerja angkutan umum, kenyamanan, jarak, waktu dan faktor lainnya. Penelitian ini bertujuan untuk mengetahui kinerja angkutan umum dan dan penyebab masyarakat berpindah moda dari angkutan umum ke angkutan pribadi. Pengukuran kinerja angkutan dilakukan berdasarkan Standar Pelayanan Angkutan Umum Departemen Perhubungan dan pengukuran pendapat masyarakat menggunakan metode Importance Performance Analysis dan Analisis Mean. Berdasarkan hasil penelitian, diketahui beberapa faktor dominan yang menjadi penyebab masyarakat berpindah moda yaitu kurangnya jumlah angkutan umum, faktor waktu seperti kurangnya waktu pelayanan dan waktu menunggu angkutan yang lama, rute pelayanan seperti rute angkutan umum yang terbatas dan angkutan umum tidak melayani hingga ke tujuan, faktor jarak seperti jarak berjalan kaki menuju tempat menunggu angkutan umum yang jauh dan faktor kenyaman penumpang seperti kurang ramahnya pengemudi dan kondektur serta suhu di dalam angkutan umum yang kurang baik. The number of private transports in Kupang City is currently increasing, while the number of public transport in some routes decreases. This happens because today many people have moved from public transport mode to private transportation. Several factors that influence public transportation are public transport performance, comfort, distance, time and other factors. This study aims to determine the performance of public transport and and the cause of the community move from public transport mode to private transportation. Measurement of transportation performance is done based on Transportation Service General Standard of Department of Transportation and measurement of public opinion using Importance Performance Analysis method and Mean Analysis. Based on the results of the research, it is known that some dominant factors are the cause of the shifting society, namely the lack of public transportation, time factor such as lack of service time and long waiting time, service routes such as limited public transport routes and public transport does not serve up to destination, distance factors such as walking distance to awaiting distant public transport and convenience factors such as the passengers lack of friendliness and conductor and the temperature in public transport is less good.

PENGARUH PENGGANTIAN SEBAGIAN AGREGAT HALUS DENGAN KERTAS KORAN BEKAS PADA CAMPURAN BATAKO SEMEN PORTLAND TERHADAP KUAT TEKAN DAN SERAPAN AIR Sina, Dantje A. T.; Hunggurami, Elia; Menezes, Amorin
Jurnal Teknik Sipil Vol 1, No 2 (2011)
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ABSTRAKKetersedian material alam untuk konstruksi sangatlah terbatas, di lain pihak permintaan akanmaterial tersebut terus meningkat, sehingga perlu dicoba untuk menggunakan materialalternatif seperti memanfaatkan barang bekas yang sering menjadi sampah sebagai materialkonstruksi. Salah satu alternatif yang dicoba adalah kertas koran bekas sebagai materialtambahan dalam campuran batako semen portland untuk menggantikan sebagian pasir,sehingga dapat mengurangi pemakaian pasir dan diharapkan dapat mengurangi sampah sertadiperoleh batako semen portland yang memiliki bobot lebih ringan. Penelitian dilakukandengan membuat batako semen portland berlubang (hollow block) berdimensi 40 x 20 x 10cm yang terdiri dari batako semen portland normal (tanpa penggantian pasir dengan kertaskoran) dan batako semen portland dengan penggantian pasir dengan kertas koran masingmasingsebanyak 15%, 20%, 25% dan 30% volume pasir. Hasil penelitian menunjukanbahwa penambahan kertas koran bekas dalam campuran batako semen portland untukmenggantikan sebagian pasir mengakibatkan penurunan nilai kuat tekan dan peningkatannilai penyerapan air (absorpsi). Kuat tekan batako semen portland normal pada umur 28 hariadalah sebesar 6,71 MPa, nilai ini menurun menjadi berturut-turut sebesar 6,51 MPa, 5,90MPa, 5,08 MPa dan 4,51 MPa pada penambahan kertas koran sebesar 15%, 20%, 25% dan30% volume pasir sedangkan absorpsinya masing masing 8,43%, 8,72%, 9,18% dan 10,36%pada penambahan kertas koran berturut-turut sebesar 15%, 20%, 25% dan 30% volume pasir,lebih tinggi dari batako tanpa penambahan kertas yaitu 6.53 %

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