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Teknisia
Published by Universitas Islam Indonesia
ISSN : 08538557     EISSN : 27460185     DOI : 10.20885/teknisia
Core Subject : Engineering,
Engineering
Jurnal Teknisia terbit pertama kali pada bulan April 1996. Pada awal berdirinya, Jurnal Teknisia merupakan jurnal ilmiah berkala yang diterbitkan tiga kali setahun oleh Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia, Daerah Istimewa Yogyakarta yang berisi artikel-artikel bidang teknik sipil, teknik lingkungan, dan arsitektur.
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Articles 6 Documents
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Search results for , issue "Vol. XXI, No. 1, Mei 2016" : 6 Documents clear
EVALUASI PERILAKU LALU LINTAS PADA SIMPANG DAN KOORDINASI ANTAR SIMPANG Miftahul Fauziah; Raafi Widyaputra Yulianyahya; Rizki Budi Utomo
TEKNISIA Vol. XXI, No. 1, Mei 2016
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Stasiun Brambanan and Taman Wisata Candi intersection are two short separate intersections around Prambanan Temple. The distance of these intersections is only 436 m, while the traffic volume is too high and because of no signal coordination between these intersections, they lead to traffic congestion during peak hour. Therefore, the need for improvement by using traffic signal coordination between them is significant. The   traffic   micro   simulation   software   of VISSIM was used to simulate the existing delay and to design traffic signal coordination. To obtain existing traffic volume during peak hour and off peak hour period, and to design a new cycle time for signal coordination, primary data were compiled according to direct observation.Result showed that the existing traffic route generates travel time of 57.24 seconds and average traveling speed of 27.42 kilometer/hour with the service level of “E” in peak hour period. The best alternative of cycle time for peak hours was 117 seconds, with average delay of17.65 seconds, travel time between intersection was 50.99 seconds, average travel speed of30.78 kilometer/hour and the service level of “E”. Travel time from East leg at 1st intersection onto  East  leg  at  2nd   intersection  (Yogya-Solo  Routes)  was  31.73  seconds,  delay  of  15.57seconds, average travel speed of 49.47 kilometer/hour with the service level of “E”. On off peak hour period, the existing average delay was 19.59 seconds, average travel time of 39,6 seconds and average speed of 39.64 kilometer/hour with the service level of “E”. The best alternative ofnew cycle time was 98 seconds, average delay of 16.42 seconds, travel time of 30.77 seconds, average travel speed 51.01 kilometer/hour, and the service level of “D”. Travel time from East leg at 1st intersection onto 2nd intersection was 27.25 seconds, delay of 14.83 seconds, average travel speed of 57.60 kilometer/hour with the service level of “D”. In general it can be said that the traffic coordination slightly increase traffic performance during peak hour at the same service level range, while on off peak hours it significantly improves their level of service.
STUDI KOMPARASI METODE EOQ DAN POQ DALAM EFISIENSI BIAYA PERSEDIAAN MATERIAL PAVING BLOCK Adityawan Sigit
TEKNISIA Vol. XXI, No. 1, Mei 2016
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Construction materials project is one of the businesses in the construction project to provide building materials in setting up a building. Rapid increasing development causing many businesses engaged in the field of construction materials. In its activities, the company is in dire need of accurate, relevant and efficient information. Information is not only needed for decision-making, but also for planning and controlling. One of the most important information is inventory information. Inventory information will determine the survival of the company due to lack of inventory. Therefore, the company needs inventory control calculation, or excess inventory will have direct impact on the survival of the company. This paper has objective of sand material analysis for paving block production. Inventory control and material measures that will be used to analyze are Economic Order Quantity (EOQ) and Period Order Quantity (POQ). The case study in this research is in the company of the paving block Merapi Volcanic Materials Innovation Centre - Islamic University of Indonesia (PIMVM - UII). Object of this research is on the sand material inventory. The data to be processed is the data of volume requirements, the cost of ordering, purchasing and storing of sand material. The data will be processed using the method Inventory Control EOQ and POQ. The result of this research showed the cost of EOQ is Rp. 22.505.098,-, and the cost of POQ is Rp. 44,577,478,-. From the results of these two methods, the difference in the price of sand on the EOQ is 49.5% less expensive than the POQ. It is because the cost of storage on the POQ greater than EOQ so the costs for materials become more expensive. Thus, the optimal inventory control methods in the production of paving blocks PIMVM-UII is EOQ.
PENGARUH KONDISI EKSTRIM TERHADAP STABILITAS INTERNAL DINDING PENAHAN TANAH ( STUDI KASUS PADA JALAN NASIONAL III YOGYAKARTA-WONOSARI KM 17, STA 00+060) Muhammad Rifqi Abdurrozak; Novi Agung Wibowo
TEKNISIA Vol. XXI, No. 1, Mei 2016
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Ruas jalan Yogyakarta-Wonosari tepatnya di daerah perbukitan telah terjadi penunurunan subgrade jalan sekitar 7-9 cm, penurunan tersebut dapat dilihat dari perbedaan tinggi dengan badan jalan disebelahnya. Jenis tanah padaada lokasi penelitian adalah berupa lempung, lanau dan pada tanah keras berupa batuan cadas sehingga mengakibatkan tanah tersebut labil dan tidak terlalu kuat untuk menahan air hujan.Pada kondisi jenis tanah diatas maka apabila kemasukan air, tanah menjadi labil dan terjadi perlemahan, sehingga dengan adanya beban dinamis diatas lapisan tersebut akan mengakibatkan terjadi konsolidasi yang mengakibatkan terjadinya penurunan muka jalan.Penelitian ini bertujuan untuk menganalisis pengaruh kondisi ekstrim (muka air makimum dan beban gempa) terhadap stabilitas lereng secara keseluruhan maupun stabilitas internal dinding penahan tanah menggunakan plaxis 8.2, dengan memodelkan lereng dengan beban-beban normal maupun ekstrim. Hal ini untuk mengetahui tegangan yang terjadi pada dinding penahan tanah ketika menerima beban dan pada kondisi ekstrim lereng, sehingga dengan adanya penelitian ini diharapkan akan diperoleh gambaran kondisi stabilitas.Hasil analisis menggunakan program Plaxis menunjukkan bahwa lereng berada pada kondisi yang kurang, baik pada kondisi muka air normal maupun pada muka air ekstrim maksimum. Pada kondisi muka air normal, faktor aman lereng secara keseluruhan yakni sebesar 1,153 (tanpa beban gempa) dan 1,145 (dengan beban gempa). Pada kondisi muka air maksimum, faktor aman lereng secara keseluruhan yakni sebesar 1,105 (tanpa beban gempa) dan 1,101 (dengan beban gempa). Hasil analisis stabilitas internal dinding penahan tanah menunjukkan kondisi dinding penahan tanah masih dalam kriteria aman. Pada potongan A-A’, pada kondisi muka air normal menunjukkan pengaruh gempa akan menambah tegangan desak secara keseluruhan, yang juga mengakibatkan tegangan tarik yang terjadi sebelumnya menjadi tereduksi hingga beralih menjadi tegangan desak, sedangkan pada kondisi muka air maksimum beban gempa memberikan pengaruh pada potongan tersebut yakni mengurangi tegangan desak yang terjadi. Hasil tersebut menunjukkan bahwa beban gempa memberikan pengaruh yang bisa dikatakan tidak teratur pada tegangan internal dinding penahan tanah. Hal tersebut juga dapat dilihat pada pengaruhnya pada potongan-potongan yang lain (B-B’ dan C-C’), baik pada tegangan-tegangan normal maupun tegangan-tegangan geser. Begitu juga pengaruh muka air tanah terhadap tegangan yang terjadi menunjukkan perilaku yang tidak teratur. Hasil-hasil tersebut menunjukkan bahwa dari segi stabilitas internal pada area-area yang ditinjau (Potongan A-A hingga Potongan C–C’), baik pada kondisi normal maupun dalam kondisi ekstrim, dinding penahan tanah masih berada pada kondisi yang stabil, ditunjukkan dengan besarnya tegangan yang terjadi di setiap potongan masih berada dibawah tegangan maksimum yang diijinkan 
HUBUNGAN KENAIKAN NILAI UPAH MINIMUM REGIONAL (UMR) DENGAN NILAI UPAH PEKERJAAN BORONG DALAM KEGIATAN KONSTRUKSI BANGUNAN GEDUNG Andi Purnomo
TEKNISIA Vol. XXI, No. 1, Mei 2016
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Nowadays, the dynamic progresses of industry often collides with its own labors because of many issues, one of them is the monthly salary. Actually Government has released a rule that regulate the minimum increasing of regional allowance annually,called UMR. The rule also applies to the building construction that is usually paid based on the volume of workload or unit price that increases periodically. Building construction project is usually well planned, including its labor payment. However at the same period, both the government regulation and project planning is being held, and this has raised curiosities in terms of its relevance, therefore the objective of this study is to determine the relevance of the annual increasing of the minimum regional sallary (UMR) with the increasing of the unit price. Then, in the budget project planning (RAB), a designer could use the government regulation of minimum allowances to calculate the increasing of labor cost. Actually, the government released another regulation consist of procedures for calculation of unit price of land for buildings and housing standard (SNI) to calculate the cost by volume of works, but its still need the daily workers payment that’s very varied in every group of workers.The research method was collecting annual regulation released by the government and interviewing with a few foreman about their unit price that was stated on the working contract (SPK). The result of this study indicate that there is no relevance between the increasing of minimum regional sallary of it and the increasing of the unit price. Therefore, designers should make item by item volume cost to create budget project planning perfectly or use government standard to state maximum unit price in each volume of works.
PENGARUH VARIASI LEBAR CFRP PADA BAGIAN TARIK TERHADAP DAKTILITAS BALOK BETON BERTULANG PASKA PERBAIKAN Atika Ulfah Jamal; Novi Rahmayanti; Helmy Akbar Bale; Iqbal Haqiqi
TEKNISIA Vol. XXI, No. 1, Mei 2016
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Retrofitting should be done on reinforced concrete beams were damaged the structure, it is to restore or improve the strength and ductility. One of the innovations of materials that can be used for retrofitting is Carbon Fiber Reinforced Polymer (CFRP). The width of the CFRP used for retrofitting an effect on load and deflection occurs in the beam, it will also affect the ductility of the beam. In this study examined the influence of the width of CFRP for retrofitting to the ductility of reinforced concrete beams with dimensions of 15x20x120 cm3. The beam is loaded until cracking occurred. Retrofitting performed on beams that have been fractured by adding CFRP on the tensile reinforcement of reinforced concrete beams. The wide variationCFRP is used to repair the beam, which is 5 cm, 10 cm, and 15 cm. The results showed that the width of CFRP placed on the tensile reinforcement in reinforced concrete beam elements repair after damage affects the curvature ductility. The wider the CFRP used for the retrofit of reinforced concrete beams lead to the greater percentage decrease in ductility curvature.
EVALUASI STRUKTUR PASCA KEBAKARAN ASRAMA SANTRI PONDOK PESANTREN DARUL QUR’AN, WONOSARI, GUNUNGKIDUL, YOGYAKARTA Agus Susanto
TEKNISIA Vol. XXI, No. 1, Mei 2016
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Student dormitory building of Darul Qur’an Islamic Center was burned on Wednesday, January 6th, 2016 at around 00:15 am to 02.15 am. Building damaged by fire, often directly considered as no longer useable and sometimes being destroyed. This resulted in inefficiency and bad for the environment, either in the form of building waste, and the extraction of natural resources for building materials. Evaluation on post-fire structure is very important for reference in decision making on further action on the building so that the action is optimal and can be scientifically responsible.This research was conducted in two stages: data collection and data processing. Data collection was done by direct survey to location, collecting building design documents, doing interview with the witnesses and dormitory caretaker, visual observation, testing the existing concrete structure strength using Schmidt Hammer Test, and measuring the structural displacements using Theodolite. Then, these field test result were being processed to produce the compressive concrete strength (fc’) and beam deflection. This calculated fc’ were used as input for structural analysis of the existing structure using ETABS software.The study concluded that the existing structure is no longer able to withstand the requisite load corresponding to building function as dormitoryaccording to regulation (SNI 2847: 2013). Fire have caused some of structural reinforcement steel melted which caused the beam deflections exceed the limit allowed by building code, and the structural serviceability decreased.The quality of construction was poor and not uniform, resulting in some trouble since beginning, problems alsooccurred in building utilities. The study suggested that structural retrofitting was required on parts of the structure that had been damaged, but even if we don’t repair the structure, the building still can be used, but with decreased usage load. The structure needs to be evaluated periodically.

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