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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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PENGARUH WAKTU DAN TEMPAT PENYIMPANAN TERHADAP SIFAT FISIK DAN MEKANIS TANAH PASIR Bella, Rosmiyati A.; Jati, Robertus H.; Pah, Jusuf J. S.
Jurnal Teknik Sipil Vol 3, No 2 (2014): Jurnal Teknik Sipil
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Abstract

Hasil analisis sifat teknis tanah berupa sifat fisik dan mekanisdi laboratorium merupakan gambaran keadaan sesungguhnya di lapangan. Pada kenyataannya penetapan parameter sifat fisik dan mekanis tanah sering tidak mewakili keadaan sesungguhnya.Tujuannya adalah untuk mengetahui pengaruh waktu dan tempat penyimpanan terhadap sifat fisik dan mekanis. Analisa data dilakukan dengan membuat perhitungan berdasarkan hasil pengujian kadar air dan kuat geser. Pendekatan regresi linear digunakan pada analisis kadar air untuk mengetahui pola penurunan kadar air. Akibat lama waktu penyimpanan terhadap sifat fisik adalah terdapat dua pola penurunan kadar air. Pola 1 adalah penurunan kadar air secara signifikan pada range hari ke-0 sampai hari ke-6 dan pola 2 adalah penurunan kadar air secara landai pada hari ke-6 sampai hari ke-27. Penurunan kadar air yang terbesar terjadi pada sampel yang disimpan pada ruang bebas,yakni 6.03% pada sampel Tarus dan 9.29% pada sampel Namosain, sedangkan yang terkecil adalah sampel yang disimpan pada box sampel yakni 3.39% pada sampel Tarus dan 3.88% pada sampel Namosain. Persentase perubahan kekuatan geser yang terbesar dari hari ke-0 hingga hari ke-27 adalah 4.79% pada sampel Tarus dan 0.89% pada sampel Namosain.
ANALISA PERBANDINGAN DINDING GESER YANG SIMETRIS DAN TIDAK SIMETRIS Widodo, Theodorus; Pah, Jusuf J.S.; Ninggeding, Aditya Yohanes
Jurnal Teknik Sipil Vol 2, No 1 (2013): Jurnal Teknik Sipil
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Abstract

Earthquake make a lateral force on the building. Lateral forces in tall building that exerted in the column is big enough, so need a rigid elements structure such as shear walls to reduce the lateral force. In designing of shear wall, it’s location must be considered carefully, because the placement of shear wall effected on the shear wall symmetry and would lead to eccentricity. The purpose of this study was to compare the symmetrical shear walls and asymmetrical. The method used is thre equivalent static analysis. Using dead load, live load and earthqueke load for loading parameters. This study, using 3 asymmetric shear wall specimens (0.1 b, 0.2 b, and 0.3b) and 1 symmetric shear wall. From the analysis of 3 asymmetric shear wall compared to symmetric shear walls, it is found that the most savely asymmetric shear wall is the shear wall having 0.1 b eccentricity.
ANALISA FAKTOR PENYEBAB KERUSAKAN JALAN (STUDI KASUS RUAS JALAN W.J. LALAMENTIK DAN RUAS JALAN GOR FLOBAMORA) Udiana, I Made; Saudale, Andre R.; Pah, Jusuf J. S.
Jurnal Teknik Sipil Vol 3, No 1 (2014): JURNAL TEKNIK SIPIL
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Abstract

The roads is the most important land transportation in running all the economic activities with the other social activities, in case of road damages may gummed up the works of economic activities with the others social activity also may cause the road accident for the other road users. This research was aimed to find out the types of damage, the causal factor and the solution to prevent the road corruptness in W. J. Lalamentik street and in GOR Flobamora street. The kind of method used was field research by make use primary data of the road damage survey result in W. J. Lalamentik street dan GOR Flobamora street. The result survey of road damage in W. J. Lalamentik street dan the road in GOR Flobamora street were longitudinal cracks, transverse cracks, alligator cracks, edge cracking, meandering cracks, block cracks, corrugation, bleeding, delamination, potholes, patching. Generally causal factors of road damage are the increasing of traffic load volume, unwell drainage, unwell materials construction, climate ustable land condition, very thin ossification layer planning, the processing work that inappropriate with the specification. Based on the analysis result on the road damage happened in the field then the reparation action can be done with the per segment reparation action.
PERBANDINGAN PERSENTASE PENAMBAHAN FLYASH TERHADAP KUAT TEKAN BATA RINGAN JENIS CLC Bella, Rosmiyati A.; Pah, Jusuf J. S.; Ratu, Ariansyah G.
Jurnal Teknik Sipil Vol 6, No 2 (2017): Jurnal Teknik Sipil
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Abstract

Penelitian ini bertujuan untuk mengetahui densitas, kuat tekan dan serapan pada bata ringan dengan menggunakan fly ash sebagai pengganti semen. Metode yang digunakan dalam penelitian ini adalah metode eksperimen dengan menggantikan semen dengan fly ash dengan variasi penambahannya sebesar 10% hingga 90% dari berat semen dengan kenaikan 10%. Pengujian kuat tekan dan densitas dilakukan pada masa perawatan bata ringan berumur 7, 21, dan 28 hari sedangkan pengujian serapan air dilakukan pada umur 28 hari. Kuat tekan maksimum berada pada variasi fly ash 10%, selama masa perawatan berturut-turut sebesar 0,633 MPa, 0,781 MPa, 0,819 Mpa dengan densitas selama masa perawatan berturut-turut sebesar 750,741 kg/m3, 664,444 kg/m3, 588,519 kg/m3 serta serapan air sebesar 26,256%. Untuk kuat tekan minimum bata ringan dihasilkan pada variasi fly ash 40% berturut-turut sebesar 0,485 MPa, 0,633 MPa, 0,670 MPa, dengan densitas selama masa perawatan berturut-turut sebesar 585,556 kg/m3, 566,296 kg/m3, 549,259 kg/m3 serta serapan air sebesar 38,184%. Variasi fly ash pengganti semen dengan kadar 50% ke atas mengalami gagal/pecah. Berdasarkan penelitian tersebut variasi fly ash sebesar 40% merupakan batas maksimum penambahan fly ash pada bata ringan CLC dikarenakan penambahan fly ash dapat berpengaruh terhadap kekuatan bata ringan itu sendiri akibat tidak adanya ikatan antar agregat. The objective of this research was to find out the density, compressive strength and absorption of lightweight brick by using fly ash as the substitute of cement. The method used in this research was experimental method by substituting cement with fly ash. The variations were 10% to 90% of cement weight with 10% increment. The compressive strength test was conducted when the lightweight brick was 7,21 and 28 days for the water absorption. The maximum compressive strength was achieved in the 10% of fly ash variation, during the treatment of 0,633 MPa, 0,781 MPa, 0,819 MPa with the density of 750,741 kg/m3, 664,444 kg/m3, 588,519 kg/m3 and 38,184% of water absorption. Whereas, the variation of 50% fly ash as the substitution of cement was failed or cracked. This research indicated that the 40% variation of fly ash was the maximum limit to be added to the CLC lightweight brick for the reason that the addition of fly ash could affect the strength of the brick as the consequence of the non-existent aggregate bonds.
CAUSES AND SOLUTIONS TO THE LACK OF WATER SUPPLY IN INDONESIAN URBAN Pah, Jusuf J. S.
Jurnal Teknik Sipil Vol 1, No 1 (2011)
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Abstract

ABSTRACTThis study aimed at finding key factors which cause lack of water supply in Indonesianurban and develop the key factors which solve it. Relevant literatures bearing on theissue of urban water supply were studied. The city of Jakarta was taken asrepresentative of Indonesian urban. For the purpose of finding the causes anddeveloping the related solutions, relevant data bearing to the city’s water supply systemwere analysed. It was found that the lack of water supply in urban areas manifests in theexceeding of water demand over supply, low piped-water coverage, and intermittencyof water supply; whereas poor governance and low water tariff are the root factor whichcause them. Consequently good governance and higher water tariff were proposed asthe solutions to the problem. It also showed that the perception that urban poor cannotafford to pay water at full price, is but mythical.
KEHEMATAN BIAYA MATERIAL AKIBAT PENGGUNAAN BATA RINGAN CLC UNTUK PEKERJAAN PASANGAN DINDING DAN PEKERJAAN BETON BALOK STRUKTURAL Pah, Jusuf J. S.; Karels, Dolly W.; Herat, Maria F. P. I.
Jurnal Teknik Sipil Vol 7, No 1 (2018): Jurnal Teknik Sipil
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Abstract

Tujuan penelitian ini adalah mencaritahu kehematan biaya material yang diperoleh dari penggunaan bata ringan CLC pada pekerjaan pasangan dinding dan pekerjaan beton balok struktural. Total biaya untuk 1m2pasangan dinding bata ringan tebal 7,5cm sebesar Rp 107.339,09 lebih hemat 30,56 % dibandingkan harga 1m2 apabila menggunakan bata merah tebal 6cm sebesar Rp 154.558,57. Namun jika dibandingkan dengan batako sebesar Rp 91.892,73 lebih murah 16,81% dan pasangan dinding yang menggunakan bata merah tebal 8cm sebesar Rp 102.692,73 per m2 lebih murah 4,52%. Total biaya untuk 1m2pasangan dinding bata ringan tebal 10cm sebesar Rp 130.010,94 lebih hemat 16,91% dibandingkan harga 1m2 apabila menggunakan bata merah tebal 6cm sebesar Rp 154.558,57. Namun jika dibandingkan dengan batako sebesar Rp 91.892,73 lebih murah 39,78% dan pasangan dinding yang menggunakan bata merah tebal 8cm sebesar Rp 102.692,73 per m2 lebih murah 25,08%. Hasil analisis persentase pekerjaan balok diperoleh kehematan maksimum pada bentang 6m sebesar 42,45% terhadap ketiga material pembanding sedangkan kehematan minimum untuk pekerjaan balok diperoleh sebesar 7,96% pada bentang 7m.This study aimed at finding out the saving of material cost in masonry works using CLC bricks and in the works of its reinforced concrete supporting beam. Total cost for 1m2 pair of heavy brick wall 7.5cm thick of Rp 107,339,09 more efficient 30.56% compared to the price of 1m2 when using a 6cm thick red brick of Rp 154,558,57. However, when compared with the brick as much as Rp 91,892,73 cheaper 16,81% and wall pair using red brick 8cm thick equal to Rp 102.692,73 per m2 cheaper 4,52%. Total cost for 1m2 pair of 10cm thick light brick wall Rp 130.010,94 16,91% cheaper than 1m2 price when using 6cm thick red brick of Rp 154,558,57. However, if compared with the brick as much as Rp 91.892,73 39.78% cheaper and the wall pair using red brick 8cm thick as Rp 102.692,73 per m2 cheaper 25,08%. The result of beam work percentage analysis obtained maximum savings at 6m span of 42.45% against the three comparable materials while the minimum saving for beam work was obtained at 7.96% in span of 7m.
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
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.
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.
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