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All Journal Jurnal Teknik Sipil Teodolita: Media Komunikasi Ilmiah di Bidang teknik Civil Engineering Journal JUTEKS - Jurnal Teknik Sipil Jurnal Teknik Sipil Jurnal Forum Teknik Sipil
Jusuf J. S. Pah
Dosen Pada Jurusan Teknik Sipil, FST Undana
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Environmental Science Materials Science & Nanotechnology Transportation Other

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PREPARATORY MODULE FOR THE OBJECT-ORIENTED MODELING OF URBAN TERRAIN HYDROLOGICAL RESPONSE Pah, Jusuf J. S.
Jurnal Teknik Sipil Vol 2, No 2 (2013): Jurnal Teknik Sipil
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Abstract

This research aimed at preparing an object-oriented module to use in conjunction with an object-oriented urban terrain hydrological response model. The module serves to capture terrain data and prepare them and make them fit as input to the core part of the urban terrain model. This research had constructed the module. It engages five classes of object, which give it capability to faithfully capturing terrain hydrological features and other relevant data, and arrange them in such a way as to serve as fit input to the core part of the urban terrain model. The module represents an urban terrain by meshing it unto a network of rectangle object elements. In order to overcome edge problems associated with the meshing, utilizing smaller size of elements (hence higher number of elements) and weighted average in terms of ‘within a cell contained terrain-sheds areas’ were advised. It also strongly encouraged the invention of a more automate ways of terrain data capturing, to replace the manual data entry procedure still utilized in this module.
OBJECT-ORIENTED APPROACH FOR THE ASSESSMENT OF MOMENTCURVATURE RELATIONSHIP OF A VARYING-WIDHT AND MULTI-MATERIAL BEAM CROSS SECTION Pah, Jusuf J. S.
Jurnal Teknik Sipil Vol 1, No 2 (2011)
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Abstract

This research developed the rational approach to shear design in 1984 Canadian Code Provision into a new approach which is object-oriented in fashion, and presented it for the purpose of assessing moment-curvature-relationship of a varying-width and multimaterial beam cross section. Unlike the traditional method that views a cross section as a single entity, this new approach views a section as a composition of autonomous objects. In this approach, a cross section is recognized as a system which is made up of objects, of which each can be predicated uniquely; behave autonomously in responding to loading, and capable of communication between each other. Being in such a fashion, the approach was shown to be capable to faithfully represent a section which varies in width, and is made up of materials with different mechanical characteristics, in whatever possible arrangement. To compensate for the painstaking computation that may be involved in the approach, and maintain its object-oriented fashion, an-objectoriented computer-software that uses an object-oriented user interface platform was recommended to be provided as an auxiliary to the approach.
KOMPONEN STRUKTUR BETON DENGAN PERKUATAN EKSTERNAL Nge, Fredi L.; Pah, Jusuf J. S.; Sir, Tri M. W.
Jurnal Teknik Sipil Vol 5, No 1 (2016): JURNAL TEKNIK SIPIL
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Abstract

Struktur beton seperti balok bila memikul beban yang berlebihan atau tidak sesuai dengan perencanaan awal akan menyebabkan struktur beton tersebut mengalami penurunan daya dukung. Hal ini bisa disebabkan apabila suatu bangunan/struktur tersebut mengalami perubahan/alih fungsi dari yang direncanakan sebelumnya. Penelitian ini dilakukan dengan membuat tata cara perencanaan dari perkuatan eksternal kemudian dibuat benda uji di laboratorium yang digunakan untuk memverifikasi hasil desain dari tata cara perencanaan. Hasil desain dengan menggunakan tata cara perencanaan pada balok beton tulangan tunggal dengan perkuatan eksternal, kapasitas balok dalam memikul momen sebesar 4905467,88Nmm. Hasil pengujian lentur balok di laboratorium diperoleh kekuatan rata-rata dari 3 balok uji dalam memikul momen yaitu sebesar 4843750,00 Nmm. Hasil uji statistik Student T Test dengan tingkat kepercayaan 95% tidak terdapat perbedaan yang signifikan antara hasil desain dan hasil pengujian di laboratorium. Dengan menggunakan tata cara perencanaan, maka hasil desain balok beton tulangan rangkap dengan perkuatan eksternal diperoleh kapasitas balok sebesar 6068337,70Nmm. Hasil pengujian lentur dari 3 balok uji memperoleh kekuatan rata-rata balok dalam memikul momen sebesar 6052083,33 Nmm. Hasil uji statistik Student T Test dengan tingkat kepercayaan 95% menghasilkan perbedaan yang tidak signifikan antara hasil desain dan hasil pengujian di laboratorium.
PENGARUH PENGGANTIAN SEMEN OLEH ABU SABUT BUAH SABOAK TERHADAP KEKUATAN MORTAR Karya, Muhamad Y.; Hangge, Elsy E.; Pah, Jusuf J. S.
Jurnal Teknik Sipil Vol 7, No 2 (2018): Jurnal Teknik Sipil
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Abstract

Pohon saboak banyak tumbuh di Pulau Timor tetapi masyarakat belum bisa mengolah dengan baik limbah dari buah saboak tersebut. Abu sabut buah saboak diperoleh dari hasil pembakaran sabut buah saboak, dimana memiliki kandungan silikat dan berpotensi untuk dijadikan alternatif sebagai bahan pengganti campuran pembuatan mortar. Tujuan penelitian ini adalah mengetahui sejauh mana pengaruh penggantian semen dengan abu sabut buah saboak terhadap kuat tekan mortar. Penelitian dilakukan dengan membuat benda uji kubus ukuran 5 cm x 5 cm x 5 cm dengan perbandingan penggantian abu sabut buah saboak 0%, 2,5%, 5%, 7,5%, 10% pada campuran mortar. Setiap persentase campuran menggunakan 5 buah benda uji, yang ditinjau pada umur 7 hari, 14 hari, 21 haridan 28 hari. Hasil pengujian kuat tekan beton menunjukkan bahwa nilai kuat tekan optimum terjadi pada komposisi penggantian abu sabut buah saboak 2,5% dengan peningkatan maksimum kuat tekan sebesar 12,72 MPa pada umur mortar 28 hari. Nilai kuat tekan dibandingkan terhadap mortar  normal, mortar dengan tambahan abu sabut saboak 2,5% dapat meningkat sebesar 5,66%. Berdasarkan SNI 03-6882-2002(DPU, 2002) mortar pada penelitian ini tergolong mortar tipe S dengan kuat tekan minimumnya 12,5 MPa, cocok digunakan sebagai bahan pembuat bataringan, batako dan plesteran tembok bagian dalam maupun luar.Saboak trees are grown on Timor Island but the community can not properly cultivate the waste from the saboak fruit saboak. Fibers of saboak husk are obtained from the burning of saboak saber, which has silicate content and has the potential to be used as a substitute for mortar mixture. The purpose of this research is to know how far the influence of cement replacement with saboak husk ash to mortar compressive strength. This research is done by making the cube specimen size 5 cm x 5 cm x 5 cm by using the comparison of saboak saboak root replacement 0%, 2 , 5%, 5%, 7.5%, 10% on the mortar mixture. At each percentage of mixture using 5 test specimens, reviewed at 7 days, 14 days, 21 days and 28 days of mortar age. The result of concrete compressive strength test showed that the optimum compressive strength value occurred in the composition of 2.5% saboak saboak ash substitution with a maximum increase of compressive strength of 12.72 MPa at 28 days of mortar age. The compressive strength value was compared to normal mortar, mortar with 2.5% saboak ash ash can be increased by 5.66%. Based on SNI 03-6882-2002(DPU, 2002) mortar in this research classified mortar type S with minimum compressive strength 12,5 MPa, suitable to be used as material of light brick, brick and plastering of inner and outer wall.
EFISIENSI PEMANFAATAN AIR DENGAN SARANA PENAMPUNGAN AIR HUJAN PADA RUMAH WARGA KOTA KUPANG Krisnayanti, Denik S.; Yosafath, Yoshua T.; Pah, Jusuf J. S.
Jurnal Teknik Sipil Vol 8, No 2 (2019): Jurnal Teknik Sipil
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Abstract

Kota Kupang memiliki musim hujan yang cukup singkat (3-4 bulan), namun tingkat curah hujan harian tergolong tinggi yakni berkisar antara 79 mm ? 203 mm. Limpasan air hujan yang tinggi dapat dimanfaatkan untuk menunjang kebutuhan air rumah tangga dengan pembuatan sarana PAH. Tujuan dari penelitian ini adalah mengetahui efisiensi pemanfaatan air pada rumah warga dengan memanfaatkan sarana PAH. Metode yang digunakan dalam perencanaan bangunan PAH adalah metode neraca air. Metode ini membandingkan tingkat kebutuhan air (demand) terhadap volume air yang dapat ditampung atau ketersediaan air (supply). Dalam penelitian ini, digunakan 30 sampel untuk mewakili 6 kecamatan di Kota Kupang. Interval kapasitas media penyimpan minimum sarana PAH adalah 26.592? 44.097 liter atau sebesar 26,59-44,10  m3. Berdasarkan hasil perhitungan, dengan memanfaatkan sarana PAH setiap sampel yang dijadikan objek penelitian dapat melakukan penghematan air dengan efisiensi rata-rata sebesar 30,57%. Berdasarkan angka ini, maka dengan adanya bangunan PAH cukup membantu penghematan pengeluaran rumah tangga untuk kebutuhan air bersih.Kupang City have short time of rainy season (3-4 months), butthe value of daily rainwater at Kupang city is classified high drops, that ranges between 79 mm-203 mm. The high amount of rainwater runoff can be utilize to support water domestic needs by build the rooftop rainwater harvesting system. The purpose of this research is to know the efficient of water utilization in citizen?s house by utilize the rooftop rainwater harvesting system. The used method in the rooftop rainwater harvesting system planning is water balance method. This method compares the water demand level to water volume that can be supplied. In this research, 30 samples are used to represent 6 sub-districts in Kupang City. The interval of rooftop rainwater harvesting minimum median capacity is 26.592? 44.097 litre or 26,59-44,10 m3. Based on the calculation result, by utilize the rooftop rainwater harvesting facility on each sample that made as research object can be done by water saving with the average efficiency is 30,57%. Based on this number, then with the exist rooftop rainwater harvesting can help to saving the domestic output for clean water needs too.
HUBUNGAN ANTARA KELANGSINGAN KOLOM BAJA DAN KAPASITAS AKSIAL PENAMPANG-NYA MENGGUNAKAN DAM PADA SAP 2000 DAN SNI 1729:2015 Simatupang, Partogi H.; Laiskodat, Patrik A. A.; Pah, Jusuf J. S.
Jurnal Teknik Sipil Vol 8, No 1 (2019): Jurnal Teknik Sipil
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Abstract

Teknologi semakin hari semakin berkembang diikuti dengan penggunaannya dalam berbagai bidang meningkat termasuk dalam perencanaan konstruksi struktur baja. Salah satu metode perencanaan konstruksi struktur baja yang memanfaatkan teknologi adalah Direct Analysis Method (DAM) atau metode analisis langsung. Banyak program komputer termasuk SAP 2000 yang telah menerapkan metode ini dalam proses analisisnya. Dalam peraturan konstruksi struktur baja Standar Nasional Indonesia terbaru (SNI 1729:2015) dikonfirmasi bahwa DAM dimasukan sebagai salah satu metode perencanaan untuk struktur baja. Tujuan penelitian ini adalah untuk mengetahui kapasiatas aksial penampang kolom baja dengan menggunakan DAM pada SAP 2000 dan berdasarkan Peraturan SNI 1729:2015. Struktur kolom yang dimodelkan memiliki tinggi 8,5 m dengan perletakan ujung bawah berupa sendi dan di ujung atas berupa sendi dimana d.o.f arah vertikal bebas. Penampang kolom menggunakan profil Wide Flange dan pipa masing-masing terdiri atas 5 variasi ukuran dengan mutu baja (fy) yang dipakai adalah 240 MPa dan 410 MPa. Sesuai hasil analisis tekuk elastis, perhitungan kapasitas aksial penampang kolom baja berdasarkan SNI 1729:2015 menunjukan nilai yang lebih kecil daripada analisis menggunakan program SAP 2000. Perbandingan hasil SAP 2000 terhadap SNI 1729:2015 pada profil WF adalah sekitar 126,316% - 126,858%. Sedangkan perbandingan untuk profil pipa pada kondisi kelangsingan besar adalah sekitar 126,412% ? 126,828%.Technology keep developing each day followed by its implementation in every sector including in steel structure construction design. One of steel structure construction design that use technology is Direct Analysis Method (DAM). There are many computer programs, including SAP 2000 that applied this method on its analysis. According to latest Indonesia National Standard (SNI 1729:2015) regulation about steel structur construction, confirmed that DAM inserted as one of steel structure design. This research aim to find out compressive strength of steel column section using DAM on SAP 2000 and SNI 1729:2015 Regulation. The column strcuture that modeled is 8,5 m in weight with the bottom end placement of the joint and at the top end of the joint where the free vertical direction d.o.f. Column section using Wide Flange profile and  pipes, each consist of 5 size varieties using quality steel (fy) are 240 MPa and 410 MPa. In accordance with elastic buckling analysis result, axial capacity of steel column section based on SNI 1729:2015 showed smalled number compared to analysis using SAP 2000. Comparison SAP 2000 to SNI 1729:2015  in WF profile is around 126,316% - 126,858%. Whereas comparions fro pipe profile on slenders condition is around 126,412% - 126,828%.
ANALISA NILAI SISA KAPASITAS BANGUNAN ATAS JEMBATAN BAHANAPU DENGAN MENGGUNAKAN METODE RATING FACTOR Shintike, Yosephine L.; Pah, Jusuf J.S.; Bunganaen, Wilhelmus
Jurnal Teknik Sipil Vol 4, No 1 (2015): Jurnal Teknik Sipil
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Abstract

Jembatan dapat mengalami kegagalan secara tiba-tiba karena akibat pengaruh dari keadaan eksternal jembatan, maka dari itu penelitian ini bertujuan untuk mengetahui nilai sisa kapasitas bangunan atas jembatan dengan menggunakan metode rating factor. Perhitungan analisis rating factor berpedoman pada draf Pedoman Penentuan Nilai Kapasitas Jembatan dari Dirjen Bina Marga dengan melakukan analisis terhadap kondisi harian (inventory) dan kondisi khusus (operating). Dari hasil analisis diperoleh nilai rating factor terhadap komponen-komponen jembatan. Untuk komponen pelat lantai kendaraan posisi Dial Gauge 2, nilai rating factor terbesar dan terkecil adalah 4.53 dan 0.75, sedangkan pada komponen pelat lantai kendaraan posisi Dial Gauge 3 memiliki nilai rating factor terbesar dan terkecil sebesar 4.35 dan 0.58. Pada komponen gelagar utama jembatan posisi Dial Gauge 1 menurut tinjauan operating rating factor memiliki nilai terbesar dan terkecil sebesar 1.01 dan 0.51, sedangkan menurut tinajuan inventory rating factor adalah sebesar 0.60 dan 0.31. Pada komponen gelagar utama jembatan posisi Dial Gauge 4 menurut tinjauan operating rating factor memiliki nilai terbesar dan terkecil sebesar 1.83 dan 0.71, sedangkan menurut tinjauan inventory rating factor adalah sebesar 1.09 dan 0.42. Dari nilai rating factor ini dapat disimpulkan bahwa secara keseluruhan jembatan memiliki nilai rating factor < 1, sehingga diperoleh hasil evaluasi bangunan atas Jembatan Bahanapu harus diberlakukan pembatasan beban lalu lintas dan juga perbaikan jembatan secara keseluruhan. The bridge can fail suddenly because due to the influence of external circumstances bridge, therefore this study aims to determine the residual value of the building capacity on the bridge by using the method of rating factor. The rating factor analysis calculation based on the draft Guidelines for Determination of Capacity Value Bridges of DGH by analyzing the daily conditions (inventory) and special conditions (operating). From the results obtained by analysis of rating factor value of the components of a bridge. To position the vehicle floor plate component Dial Gauge 2, the value of the largest and smallest factor rating is 4:53 and 0.75, whereas the components of the vehicle floor plate Dial Gauge position 3 has a value rating of the largest and smallest factor of 4:35 and 0:58. In the main girder bridge component position Dial Gauge 1 rating factor according to a review of operating the largest and smallest values of 1:01 and 0:51, while according to rating factor tinajuan inventory amounted to 0.60 and 0:31. In the main girder bridge component Dial Gauge position 4 according to a review of operating rating factor has the largest and smallest values of 1.83 and 0.71, while according to inventory review rating factor is equal to 1:09 and 0:42. The rating factor of the value of this can be concluded that the overall bridge rating factor has a value of
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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Abstract

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.
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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Abstract

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.
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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Abstract

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.
Co-Authors Aditya Yohanes Ninggeding Andre R. Saudale Bei, Angelina F.D. Carysa R. Ratu Edo, Carysa R. Dantje A. T. Sina Decaprio, Alex Deddy I. Matarohi Denik S. Krisnayanti Denik Sri Krisnayanti Desyandri Desyandri Elia Hunggurami Hangge, Elsy E. Herat, Maria F. P. I. Herat, Maria F. P. I. Ikun, Maria G. A. Ikun, Maria G. A. John Hendrik Frans Kadimas, Irenius O.R Kadimas, Irenius O.R Karels, Dolly W. Karels, Dolly W. Karya, Muhamad Y. Karya, Muhamad Y. Klau, Ralno R. Krisantus M. Lahamukang Laiskodat, Patrik A. A. Lapudooh, Tommy Lucelina F. De A. Freitas Nge, Fredi L. Nge, Fredi L. Partogi H. Simatupang, Partogi H. Ratu, Ariansyah G. Ratu, Ariansyah G. Ria A. Putri, Ria A. Ridwan Rinaldo Loe Robertus H. Jati Rosmiyati A Bella SATRIYAS ILYAS Sehandi, Krisogonus Siallagan, Gisella D. Siallagan, Gisella D. Sinlae, Astryana M. Syamsumarlin, . Taseseb, Nedelina Theodorus Widodo Tosari, Dessy S. Tosari, Dessy S. TRI M SIR Tri M. W. Sir Tri Mardiyati Wahyuningsih Uly, Patrisia S. B. M. Wilhelmus Bunganaen Yanes E. Oematan Yosafath, Yoshua T. Yosephine L. Shintike, Yosephine L. Yunita A. Messah