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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 107 Documents
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ANALISIS TRANSPOR SEDIMEN SUNGAI OPAK DENGAN MENGGUNAKAN PROGRAM HEC-RAS 4.1.0 Pradipta Nandi Wardhana
TEKNISIA Vol. XX, No. 1, Mei 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Opak river flows in Daerah Istimewa Yogyakarta, Indonesia. The river flow contains sediment material because Opak River’s upstream is at Mount Merapi. The sediment material can settle at river cross section. Deposit of sediment material can reduce cross section discharge capacity. HEC RAS 4.1.0 is developed by U.S Army Corps of Engineering Hydraulics Engineering Centre (USACE). The program have capability to simulate one dimensional flow such as steady flow, unsteady flow, sediment transports, and water quality in natural or artificial network. Based on transport sediment simulation as long as 365 days, sediment material deposition at upstream reach of Opak River is 515,519 tons, middle reach of Opak River is 79,282 tons, and downstream reach of Opak River is 47,300 tons. Meanwhile, there is sediment material deficit at Winongo River as much as 36,231 tons and sediment material deficit at Oyo river as much as 29,437 tons. At the most downstream cross section of Opak River, the cross section change is not significant.
KEMAUAN MEMBAYAR (WILLINGNESS TO PAY) CALON PENUMPANG TERHADAP RENCANA PELAYANAN TRANSJOGJA RUTE YOGYAKARTA-KALIURANG Aditya Mahatidanar Hidayat; Berlian Kushari
TEKNISIA Vol. XX, No. 1, Mei 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

TransJogja is a public bus system that serves Yogyakarta city and its vicinity using mid-sized air conditioned buses. The system, that was introduced in February 2008, currently runs daily from 05.30 to 21.30 on it 4 trunk routes. Recently, a plan of opening some feeder routes has been considered to expand its service coverage so as to include potential trip generator regions, including areas along Yogyakarta – Kaliurang road. The purpose of this study was twofold, i.e. to investigate prospective passengers’ willingness to pay (WTP) TransJogja service planned to run Yogyakarta – Kaliurang route and to study which factors that likely determine the formation of passengers’ WTP. Stated preference technique was used to collect prospective passengers’ opinion on the price that they would pay provided certain service characteristics. In a view that one’s WTP may also be influenced by his/her own socioeconomic background in addition to the service features offered, respondents’ socioeconomic information such as age, gender, income level, etc. were also collected and used to study their influence to the stated price to pay. Based on 655 observations, a majority of 26,1% respondents stated 3.000 rupiahs as the price they would pay for Yogyakarta-Kaliurang TransJogja services, while another 23,97% stated 2.000 rupiahs. These prices correspond to various combinations of service features, including varied seating capacity, inclusion or exclusion of air conditioning system (AC), bus stops, varied peak and off-peak headway, varied service hours, and application of special rates for students. Further study using multiple linear regression method indicated that respondents’ socioeconomic features that include one’s gender, age, place of stay (along Kaliurang Rd or otherwise), and monthly transportation-related expenditure had a greater share in determining his/her WTP, rather than service features that include seating capacity, AC, and student’s special rate. Therefore, it was recommended that the concerned office should take consumers’ socioeconomic factors into consideration in their future decision on passenger tariff should the Yogyakarta-Kaliurang route of TransJogja services is to open.
ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI KEHANDALAN SISTEM PROTEKSI KEBAKARAN PADA BANGUNAN GEDUNG NEGARA DI KOTA MATARAM B. Hurul Ismi Roziana; Suryawan Murtiadi; Akmaluddin Akmaluddin
TEKNISIA Vol. XX, No. 1, Mei 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

State Buildings are the state assets that have strategic value as a place to process the state administration and serve the public service activities, health and education. Fire in the buildings can cause problems and threats due to a variety of unintended consequences such as loss of life, destruction of buildings, loss of data and other assets that are stored in the buildings. Therefore, the aim of this research is to investigate the relationship between material usage, building designs, detection and fire alarm system, fire extinguishers, fire hydrants and sprinklers, and the reliability of fire protection system of the state buildings in Mataram. A descriptive research method was used in this study. Sixty building sample consisted of 30 simple buildings and 30 non-simple buildings, built from 2009 to 2014, were considered. Samples data obtained were processed using SPSS 18.0 software. The results showed that 91.1% of the fire protection reliability on the state buildings affected by 6 independent variables, namely usage of materials (X1), building design (X2), detection and fire alarm system (X3), fire extinguishers (X4), fire hydrant (X5) and sprinklers (X6). The six independent variables have a significant effect simultaneously showed by F value of 90.339 higher than F table of 2.3966 with a significance value less than 0.05. From the six independent variables only 4 variables have partially significant influence on the fire protection reliability of the state buildings in Mataram that was X1, X2, X3 and X4. This showed by the value of the variables t test were higher than t table of 2.0066 with the significance less than 0.05. Thus, X5 and X6 did not have any partially significant effect on the fire protection reliability of the state buildings in Mataram.
PENGARUH TIPE GRADASI AGREGAT TERHADAP SIFAT BETON ASPAL DENGAN BAHAN PENGIKAT ASPAL PERTAMINA PEN 60/70 DAN ASPAL STARBIT E-55 CAMPURAN AC-WC Subarkah Subarkah; Wisnu Romadhona
TEKNISIA Vol. XX, No. 1, Mei 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Pavement earlier damage in Indonesia was generally due to overloading, repetition of traffic loading, and climatic change. To overcome these main factors, the quality of asphaltic concrete need to be improved properly. This research was to know the effect of difference aggregate gradation types on pavement performance using modification bitumen of Starbit E-55 and bitumen Penetration 60/70. Research was conducted in four stages: 1) to determine optimum bitumen content of four mixture types, 2) Marshall standard and immersion tests at each bitumen content of the mixtures, 3) indirect tensile strength test, and 4) analyzing and comparing the results. The research result shows that bitumen starbit E-55 can be used as an alternative binder for asphaltic concrete. The optimum bitumen content of bitumen Starbit E-55 in AC-WC was 5.75% for dense graded and 6.2 % for gap graded. The mixture with bitumen Starbit E-55 was weaker than that of bitumen penetration 60/70 for both dense and gap graded. Immersion test result shows that the index of retained strength of specimen using bitumen Starbit E-55 was more sensitive than that of using bitumen Pen 60/70. Whereas, in term of indirect tensile strength, specimens using bitumen Penetration 60/70 was more sensitive than that of specimens using Starbit E-55.
IDENTIFIKASI KEBUTUHAN PENANGANAN JALAN NASIONAL 2015-2019 DI PROVINSI SUMATERA SELATAN Rizky Ardhiarini; Agus Taufik Mulyono
TEKNISIA Vol. XX, No. 1, Mei 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Multi-criteria analysis combines road condition assessment score (IRI, SDI, road width, V/C ratio, traffic volume, vehicle speed, travel time) with importance level of the development of the area. The analysis resultedthe need of maintenance of national road in South Sumatera (2015-2019) more optimally, efficiently and effectively. The result are as follows : (1) in 2015, 95,86% of the  roads require routine maintenance and 4,14% require capacity improvement by widening the road to 7,0 meter; (2) among 2016 to 2019, 100,0% of the roads require routine maintenance without widening. The implementation of the maintenance does notaffect much to reduce travel time, although 100,0% of road has a width of more than 7,0 meter and about 90,37% of road has IRI less than 4,0 m/km. The condition is caused by there are no maintenance requirements concerning the improvement of the substandard geometric.
COVER, SUSUNAN DEWAN REDAKSI, DAFTAR ISI, DAN PETUNJUK PENULISAN Dewan Redaksi
TEKNISIA Vol. XX, No. 1, Mei 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

COVER, SUSUNAN DEWAN REDAKSI, DAFTAR ISI, DAN PETUNJUK PENULISAN
IDENTIFIKASI KOMPETENSI TENAGA AHLI PELAKSANA KONSTRUKSI PERUMAHAN DI YOGYAKARTA Albani Musyafa
TEKNISIA Vol. XX, No. 1, Mei 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Indonesian society is currently experiencing a huge backlog in livable house. The backlog tends to grow in line with the conditions of insufficient supply and growing demand. In accordance with the government's program increasing the production of livable housing, human resources in the field of housing industry should be prepared well. One of the important human resources is the expert in the execution of housing constructions. The experts should have competences needed so that the construction can be executed efficiently and effectively. The objective of this study was to determine the sequence of critical competencies that should be mastered by the expert in execution of housing construction. This result is useful for improving the quality of education and training of human resources in the field of housing construction to overcome the backlog of livable house in Indonesia. The research method involves two main steps: the data collection and data processing methods. The competences and the important level were collected from the housing developers through interviews and questionnaires. The interview is intended to determine the types of competencies while questionnaire intended to determine the level of importance. The importance was validated with Kendal-W (Kendall's Coefficient of Concordance). The result shows two groups of competencies that should be mastered by the experts in execution of housing construction: 1. pre-construction phase, and 2. construction phase. In the pre-construction phase, the expert should master in: shop drawing, site plan for construction, budgeting/scheduling, workforce planning, mapping, health and safety issues, and the contract. While at the construction phase, the expert should master in methods of: scaffolding/formwork, reinforcement, roof framing, concreting, time/quality control, electrical/plumbing work, and material/equipment management.
ANALISIS PENINGKATAN JALAN AKIBAT KERUSAKAN STRUKTUR PERKERASAN DI ATAS TANAH EKSPANSIF Faizul Chasanah
TEKNISIA Vol. XX, No. 1, Mei 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Performance of pavement structure related to the material and subgrade conditions. This research was conducted to evaluate the damage to the flexible pavement, to analyze the influence of potential and expansive pressure of subgrade, and to analyze pavement thickness of flexible pavement and rigid pavement that has been done by the government in 2012.The location for this research is the road from Purwodadi to Geyer and from km 66+650 to km 87+180. The analysis done with evaluate of the road damage was based on secondary data from Bina Marga department and observation in the field. The early research with taking some soil sample and then testing in laboratory to determine the swelling potentials and swelling pressure by Seed (1962) method. While, the analysis of pavement thickness was designed using the AASHTO (1993) and Bina Marga method. The result of research show the existing condition have ten locations with severely damaged and one location with moderately damaged. Based on the laboratory tests results, the soil condition has a critical expansive degree and high expansive pressure. The average value of expansive degree to all sample show > 10 % and > 300 kPa for expansive pressure. The analysis using AASTHO (1993) method generated additional pavement thickness of 18.5 cm which was required on flexible pavement while the analysis by Bina Marga method produced the required pavement thickness of 23 cm on rigid pavement. Therefore, it can be concluded that overlay in the Purwodadi - Geyer road was not able to serve the traffic based on service life of ten years.
PENGURANGAN RISIKO BENCANA ALAM GEMPA BUMI SEBAGAI UPAYA UNTUK MELAKSANAKAN RISK-BASED EARLY WARNING Widodo Pawirodikromo
TEKNISIA Vol. XX, No. 1, Mei 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

The occurrence of natural hazards and disasters in general can not be avoided, and accordingly, the best way to overcome is to carry out an effective disaster management. The disaster management cycle has been defined and understood clearly.One of the main problem especially in the earthquake occurrence is the method of early warning. Semi quantitative investigation on the earthquake occurrences particularly at Yogyakarta province has been conducted. The relationship between earthquake occurrence and an effective early warning became the main discussion. The data of earthquake occurrence at Yogyakarta provinve in general is still relatively limited. The only available data was started at 1960’s and therefore for the purpose of earthquake forecasting and prediction, the numbers/completeness of the data should be improved. Result of the investigation showed that the concept of early warning system will be more comprehensive if it be conducted by using the principle of Risk-Based Early Warning. Reducing the disaster fatalities can be done not only by carrying out an  early warning immediately before hazard but also can be extended inclusively in the disaster risk reduction program. Based on preliminary investigation and experiences, the structural damage at Yogukarata province would be occur if the shallow earthquake magnitude M is greater than  5.3 with the epicenter distance approximately less than 40 km. There are several earthquake prediction methods that have been developed by researchers, and one of them is strange animal behavior before earthquake. The strange animal behaviors were occurred before the Yogyakarta 27 May 2006 earthquake. This method can be used for the earthquake early warning in the future when it has been verified successfully.
Cover, Susunan Dewan Redaksi, daftar Isi, dan Petunjuk Penulisan Dewan Redaksi
TEKNISIA Vol. XX, No. 2, November 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Cover, Susunan Dewan Redaksi, daftar Isi, dan Petunjuk Penulisan

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