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INDONESIA
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 137 Documents
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PENGARUH PENGGUNAAN CETAKAN SPASI TERHADAP KEBUTUHAN BAHAN PADA PEKERJAAN PASANGAN BATA Albani Musyafa
TEKNISIA Vol. XX, No. 2, November 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

For construction of million houses needed by Indonesians, material efficiency should be prioritized. This is because so many wasted materials in the process. For example, much mortar is wested on a masonry work. To minimize the waste, a mortar mold should be used. The objective of this study was to determine the efficiency that could be got by using a mortar mold in a masonry work. The reseach method was experiments. The result was determined by comparing the mortar needs between the two ways, i.e. with and without the masonry mold tool. Twenty-one experiments have been conducted for each way. The results of this study indicate that using of the tool could save about 23% of mortar or 23% of the material cost.
ANALISIS DAN DESAIN STRUKTUR BETON BERTINGKAT BANYAK BERDASARKAN PERBANDINGAN ANALISIS RESPONS SPEKTRUM DAN DINAMIK RIWAYAT WAKTU Galuh Ayu Pratiwi; Widodo Widodo
TEKNISIA Vol. XXII, No. 1, Mei 2017
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Indonesia is a country that has vulnerability to an earthquake. During the earthquake, the building has vertical and horizontal motion. Horizontal earthquake forces attack the weak points on structure that not strong enough and caused collapse building. To reduce the losses and casualities caused by the collapse of building especially multistory building, many seismic analyzes of structures are developed. This research explained the comparison of structural response between response spectrum and dynamic time history analysis to an irregular 9-story building. The building located in Yogyakarta with medium soil type and used as a hotel. The earthquake record that used for dynamic time history is El Centro 1979 earthquake (high frequency), El Centro 1940 earthquake (medium frequency), and Duzce earthquake (low frequency). Furthermore, the maximum result of structural response between them will be used for design purposes. The analysis in this research was done by ETABS version 9.6. The result showed that the maximum value of structural response such as displacement, story drift, momen force, shear force, and axial force caused by El Centro 1940 earthquake load. The next value caused by response spectrum load, Duzce earthquake load, and the smallest value caused by El Centro 1979 earthquake. The design calculation was done by using the result from dynamic time history analysis that caused by El Centro 1940 earthquake load because the load has the maximum response value.
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.
PENERAPAN KONSEP ECO-SETTLEMENT PADA SARANA PRASARANA INFRASTRUKTUR PENDUKUNG PERMUKIMAN HUNTAP (STUDI KASUS : HUNTAP PAGERJURANG DAN HUNTAP KARANGKENDAL KECAMATAN CANGKRINGAN) Hanindya Kusuma Artati; Albani Musyafa
TEKNISIA Vol. XX, No. 2, November 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Eco-settlement infrastructure planning is a concept that puts the balance of the ecosystem at a settlement. This concept is urged to apply to residential areas, especially in the area of the catchment. Huntap as a settlement area also need to apply the concept of eco-settlement. After the eruption of Merapi, Huntap development is mostly done in the area of Cangkringan which is the catchment area that supplies water in the city of Jogjakarta. The purpose of this study was to report the results of the application of eco-settlement planning on huntap in Cangkringan area. The method used in this research are: 1) Identification of the condition of settlement infrastructure that had been built 2) comparative analysis of results of this identification with the concept of eco-settlement, 3) to formulate the results of the analysis. From the analysis, we can conclude that the development of infrastructure in the dwelling in accordance with the concept of eco-settlement.
PENGARUH KADAR LIMBAH KACA SEBAGAI SUBSTITUSI AGREGAT HALUS TERHADAP KARAKTERISTIK CAMPURAN ASPAL PORUS Miftahul Fauziah; Fitri Sari Wijayati
TEKNISIA Vol. XXI, No. 2, November 2016
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Porous asphalt allows water to be more easily drained from the road surface into asphalt concrete pavement. It absorbs rainwater through the coarse aggregate, this may be a solution of flooding at most cities in Indonesia which is caused by continuous rain. Glass is one of waste that had not been much recycled and need to be considered, By using glass as a material substitution is expected to be longlife and has a strength equals or even better on asphalt mixtures. This research was conducted in order to find the effect of substitution levels of glass on Marshall characteristics, durability, value of indirect tensile strength, abrasion resistance and permeability according to specifications of Australia Asphalt Pavement Asociation (AAPA) 2004. The research was carried out by using variant levels of substituion glass on fine aggregate No.8 in mixture that are 0%, 10%, 20%, 30%, and 40%. The results show that the glass waste on fine aggregate No.8 can be used in porous asphalt mixture only to 30% of proportion. From the Marshall test the results showed that the mixture ability to withstand a load is increasing up to optimum limit and declined thereafter at stability value then the flow level, MQ, VITM, VMA which is increasing up to optimum limit also declined after that as for VFWA level and density is declining until certain level then rising thereafter. The ability toward impact with Cantabro test result is increased up to optimum limit. The mixture homogeneous is increased, it shows from value of Asphalt Flow Down that decreased continously with the increasing of glass waste proportion.
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.
EVALUASI KINERJA POLA OPERASI WADUK (POW) WONOGIRI 2014 Dinia Anggraheni; Rachmad Jayadi; Istiarto Istiarto
TEKNISIA Vol. XXII, No. 1, Mei 2017
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Wonogiri Reservoir is one of the reservoirs in Central Java which is a multifunctional reservoir. The reservoir serves many functions as flood control, irrigation and raw water supply, and hydropower (PLTA). For managing the fulfillment of these functions, Wonogiri Reservoir has a Reservoir Operating Rule to adjust the elevation and release discharge every mid-month. However, There was for the condition of Wonogiri Reservoir in October 2014. The water level of October 30, 2014, was at+126,66 m, while in Reservoir Operating Rule, the water level was supposed to be at +127,63 m. Therefore, the operating rule performance needs to evaluate, especially in 2014. The evaluation step began by conducting a water balance study with the demand for irrigation water and raw water, actual release, and inflow into the reservoir. The next step was optimizing the operating rule of the reservoir by the objective function of maximizing the comparison between release and demand for the fulfillment of irrigation water with 10 years data. The final step was evaluating the Wonogiri Reservoir Operating Rule in 2014 using a new operating rule generated from the optimization process. Based on the results of the study can be concluded that the inflow that occurred in 2014 can fulfill the needs of irrigation water and maintain elevation in accordance with the operating rule in 2014.
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 
PENYEDERHANAAN RUMUS DEBIT ALIRAN LEWAT LUBANG BESAR Munadhir Munadhir
TEKNISIA Vol. XX, No. 2, November 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Theory of flow discharge through large orifice on wall is obtained by integration of small orifice equation dQ on flow column dA. The flow equation obtained from integration process contains fractional exponent number, moreover the obtained equation is not simple for practical purpose. The application of the obtained equation can raise an error. This research presents practical discharge concept as a result of multiplication of orifice broad (A) and flow velocity (V) at the centre of orifice. Application of practical discharge equation on rectange orifice, triangle orifice, trapezoidal orifice, and circle orifice show maximum error presentation less than 5% toward theoretical discharge.
PENGENDALIAN WAKTU DENGAN METODE EARNED VALUE PADA PROYEK PEMBANGUNAN HOTEL FAVE KOTABARU YOGYAKARTA Vendie Abma
TEKNISIA Vol. XXI, No. 2, November 2016
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

All construction project require of cost and time control. Controlling of time the most important in the construction implementation so that the project can be in accordance with the time schedule. Controlling of time can be done byconsidering the project implementation performance. Project implementation can be late, faster, or even on time in accordance with time schedule. One of the time controlling that are used in this research is earned value method to know the project performance in terms of time. Object of this research is Building Construction Project of Fave Kotabaru Hotel, Yogyakarta. The data in this research are time schedule, RAB, and weekly progress report to get the value of BCWP and BCWS. Controlling analysis by earned value method obtained the value of Schedule Variance (SV), Schedule Performance Index (SPI), predict the value of estimation to completeand estimation at comlpete (ETC and EAC). Analysis result base on time of Building Construction Project of Fave Kotabaru Hotel was predicted to become late. All value of Schedule Variance (SV) from week 25 until 28 is negative (-) and the average value of Schedule Performance Index (SPI) at 7th month from week 25-28 is 0,63 (<1). The results mean that the time performance of the construction project is slower than the time schedule. Based on the performance at the 7th month observation, obtainedthe value of estimation to complete (ETC) the project is 20 weeks, then estimation at completion (EAC) is 48 weeks, 8 weeks slower than time schedule. The final result shows that the project was too late, so that it need to be re-schedule.

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