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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 6 Documents
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Search results for , issue "Vol. XXI, No. 2, November 2016" : 6 Documents clear
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.
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.
PENGEMBANGAN MODEL UNTUK MEMPREDIKSI BIAYA PEMBANGUNAN RUMAH LAYAK HUNI BERDASARKAN HARGA BAHAN Albani Musyafa
TEKNISIA Vol. XXI, No. 2, November 2016
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Cost estimate is very important for all parties involved in a construction, such as owners, contractors, consultants, investors. A method for calculation of cost estimate is Budget Plan (RAB). However, the calculation requires some competencies and time. The objective of this study is to develop a easier method to calculate the cost estimation, i.e. by developing formulations of RAB based on the price of some materials. This research was carried out on simple house projects, which was built in 2014 in regions of Magelang, Bantul, Sleman and Yogyakarta. The data were collected by observation and interviews in the fields. The interviews were conducted to collect information of material prices and labor costs used as the independent variables. While, the observation aimed to calculate the value of RAB used as the dependent variable. Analysis of data used the correlation and regression techniques. Based on the analysis, the variables with strong correlation with RAB is prices of the brick (0.907), while the correlation between employee wage and RAB is quite low. The regression analysis resulted that the cost of house construction can be predicted by equations: RAB = 66,823 X1 - 1.277.771 or RAB = 53,244 X1+ 26,423 X2 -1.826.152, with X1 is the price of standard brick per hundred pieces expressed in rupiah and X2 is a prices of floor covering material per square meter  stated in rupiah. Based on the validation, the accuracy of the formulations is over 97%. Estimasi biaya memiliki fungsi yang sangat penting dalam dunia konstruksi bagi semua pihak yang terlibat di dalam konstruksi seperti owner dan investor. Salah satu cara membuat estimasi harga tersebut adalah dengan menggunakan Rencana Anggaran Biaya (RAB).   Bagaimanapun, cara perhitungan tersebut memerlukan kompetensi, ketelitian dan membutuhkan waktu yang cukup lama. Penelitian ini bertujuan mencari cara yang lebih mudah dan cepat untuk menghitung estimasi biaya, yaitu dengan mencari formulasi yang bisa digunakan untuk menghitung nilai RAB dengan variabel bebas harga bahan dan upah tenaga kerja. Penelitian ini dilakukan pada proyek-proyek rumah sederhana tipe 45, yang dibangun pada tahun 2014 di komplek perumahan yang ada di Kabupaten Magelang, Kabupaten Bantul, Kabupaten Sleman dan kota Yogyakarta. Pengumpulan data dilakukan dengan cara observasi dan wawancara langsung di lapangan. Wawancara dilakukan untuk mendapatkkan informasi harga bahan dan upah tenaga kerja yang digunakan sebagai variabel bebas. Sedangkan observasi dilakukan untuk menghitung nilai RAB yang digunakan sebagai variabel terikat. Analisis data penelitian menggunakan teknik korelasi dan regresi. Dari hasil analisis korelasi dan regresi, variabel yang memiliki hubungan paling tinggi dengan nilai rencana anggaran biaya bata merah dengan nilai koefisien korelasi 0,907 yang berarti variabel bebas tersebut memiliki korelasi yang sangat kuat terhadap variabel terikat. Sementara itu korelasi upah tenaga kerja dan RAB cukup rendah. Dari hasil analisis regresi untuk semua variabel bebas didapat persamaan yang dapat digunakan untuk menghitung nilai RAB yaitu, RAB = 66,823 X1 - 1.277.771 atau RAB = 53,244 X1+ 26,423 X2 -1.826.152, dengan X1  adalah harga batu bata ukuran 22 x 11 x 5,5 per seratus buah yang dinyatakan dalam rupiah dan X2 adalah harga material penutup lantai per meter persegi yang dinyatakan dalam rupiah. Formulasi tersebut memberikan tingkat akurasi yang cukup baik, yaitu diatas 97 %.
KAJIAN ANALISIS RISIKO BENCANA TANAH LONGSOR DI DESA TERONG KECAMATAN DLINGO KABUPATEN BANTUL Sri Aminatun; Yunalia Muntafi
TEKNISIA Vol. XXI, No. 2, November 2016
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Bantul Regency has 16 landslides-prone villages located on the ridge morphology of the hills in the eastern region and a small part of the western region of Bantul regency. Based on the landslide map from BPBD in 2011, Terong village is one of the villages in Bantul regency which experienced high intensity of landslide, so the risk analysis of landslide in detail is needed as one of the disaster mitigation efforts in that region. This study aims to identify residents who are in the landslide threat zone, both in a high threat zone and medium threat zone. The method used in this research is descriptive method with qualitative approach used to give a clear picture about the number of citizens in each zonation. Sources of data used are primary and secondary data sources through interviews and documentation. The results of the study indicate that 1) the number of household in the high risk red zone is 1 household, in the yellow risk zone is 22 household, and in the green risk zone is 1 household; 2) Terong village has a high threat, medium vulnerability, and high capacity, which is means that it has a medium risk value.
APLIKASI ORTHOTROPIC STEEL DECK (OSD) DENGAN RIBS PENAMPANG V PADA JEMBATAN RANGKA TIPE CALENDAR HAMILTON (CH) Astriana Hardawati
TEKNISIA Vol. XXI, No. 2, November 2016
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Jembatan rangka baja tipe Calendar Hamilton (CH) dengan pelat lantai beton mempunyai berat sendiri lantai yang cukup dominan daripada lantai dengan struktur baja. Pada penelitian ini diaplikasikan sistem Orthotropic Steel Deck (OSD) sebagai pengganti lantai beton untuk perbaikan jembatan. Sebagai studi kasus adalah jembatan CH dengan bentang 104 m di Keduwang, Imogiri. Tujuan penelitian ini adalah melakukan desain OSD dengan ribs penampang V dengan mempertimbangkan kekuatan fatigue dan menghitung nilai Rating Factor (RF) rangka utama sebelum dan sesudah redecking untuk mendapatkan nilai kapasitas sisa jembatan. Metode yang digunakan yaitu memodelkan pelat OSD dengan menggunakan software ABAQUS untuk mendapatkan dimensi ribs dan pelat yang optimal dari segi berat, dengan batasan strength stress fatigue limit sesuai AASHTO. Selanjutnya, pemodelan jembatan secara keseluruhan dilakukan dengan menggunakan software SAP2000 untuk mengetahui gaya-gaya dalam pada jembatan dan menghitung rating factor (RF). Dari hasil pemodelan ABAQUS didapat 10 variasi pelat OSD yang optimal untuk 3 variasi LHR yaitu 1000, 2000, dan 3000 dan 5 variasi umur rencana yaitu 10 tahun, 20 tahun, 30 tahun, 40 tahun, dan 50 tahun. Dari hasil pemodelan SAP2000 dan analisis diketahui bahwa jembatan dengan pelat OSD memiliki nilai rating factor lebih besar daripada jembatan dengan pelat beton. Nilai rating factor terkecil didapat dari elemen stringer untuk semua variasi jembatan dan nilainya dibawah 1,0.
EVALUASI DAN PERBAIKAN GEOMETRI JALAN PADA RUAS JALAN MAGELANG – YOGYAKARTA KM 22 –22,6 Prima Romadhona
TEKNISIA Vol. XXI, No. 2, November 2016
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Transportation is an activity or process to moving people or goods from one place to another. Nowadays, with the modern of transportation makes human activity will be more dynamic. Magelang – Yogyakarta street km 22 – km 22,6 is a national road that connect Yogyakarta province with Central Java. The location is a combination of two curves in different opposite direction. The purpose of the research was to evaluate the geometric condition compared from Bina Marga standard. The research method was using direct measurement of actual geometric condition, include horizontal and vertical curve, lane and roadside width using theodolith measuring instrument. Further analysis done by Bina Marga standard. The result that did not met the standard need to be repair geometrically. Analysis result showed that some lane and roadside width section did not met standard of radius by Minister Regulation of Public Works No. 19. Furthermore, all of vertical horizontal did not met standard of minimal length required by National Standardizations Agency. Thus, it needed to repair the horizontal curve by combining previous two curves of B and C based on standard requirement from National Standardizations Agency, that is 120 meter for speed plan 70 km/hours.

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