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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 137 Documents
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ANALISIS HAZARD GEMPA DKI JAKARTA METODE PROBABILISTIK DENGAN PEMODELAN SUMBER GEMPA 3 DIMENSI Yunalia Muntafi; Widodo Pawirodikromo; Lalu Makrup
TEKNISIA Vol. XX, No. 2, November 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

History records that Jakarta as the capital of Indonesia ever rocked by a devastating earthquake in 1699, 1780, 1883 and 1903, resulting in loss of physical, mental and material. The existence of several active faults around Jakarta potentially be the source of the earthquake that shook Jakarta. Therefore, the analysis of seismic hazard for Jakarta area is needed. The study was conducted by the method of Probabilistic Seismic Hazard Analysis (PSHA) with 3D modeling of seismic source and latest attenuation equations (Next Generation Attenuation) in accordance with the method used in the manufacture of the latest earthquake map (Earthquake Hazard Map of Indonesia 2010). The aims of this research are to (1) conduct hazard analysis seismic probabilistic as a reference value of the intensity of the hazard seismicity, (2) analyze deagragasi as early determinant of modification recording time history seismic acceleration corresponding to Jakarta bedrock and (3) analyze the spectral matching which then carried the ground motion design for Jakarta. The results of seismic hazard analysis shows that maximum acceleration at bedrock (PGA) for the Jakarta area with 500-year return period amounted to 0.236 g still in the range of PGA Jakarta by Indonesian Earthquake Hazard Map of latest ISO 1726-2012 (0.20g-0.25g). This value is close to the value of the Hutapea’s research results (2009), amounting to 0.239g. However, it is higher than the proposed PGA of Irsyam et al (2008) which amounted to 0.20g, and lower than the value of PGA on Indonesian earthquake map published by the USGS in which Jakarta was in the range of 0.245g - 0.326g. Based on the deagregation analysis, obtained two sets of real-time earthquake data, namely time history of Kocaeli earthquake in 1999 and Landers earthquake in 1992 to present megathrust and shallow crustal earthquake source, then by spectral matching analysis, obtained two synthetic ground motions for each seismic source mechanisms in the period of 0.2 sec and 1.0 sec for Jakarta.
STUDI PERBANDINGAN PENGGUNAAN PCU GIRDER DAN PCI GIRDER PADA STRUKTUR ATAS JEMBATAN JURANG GEMPAL, WONOGIRI Bastya Pratama Putra; Yunalia Muntafi; Suharyatmo Suharyatmo
TEKNISIA Vol. XXII, No. 1, Mei 2017
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

The Bridge is one of the infrastructure buildings that support social, economic and industrial growth of a region. Jurang Gempal Bridge in Wonogiri is the main highway access that connects the Solo-Wonogiri Road. The main material of that bridge is steel which has corrosive prone nature so that need a routine maintenance. In contrast to steel, concrete material is easier to maintain and better to reduce shocks. Therefore, this research will be use concrete material that is PCU Girder and PCI Girder on the upper structure of the bridge.The research aims to compare the results of the design related to required total Girder area, number of tendons and reinforcement of the bridge designed with PCU Girder and PCI Girder from the Binamarga Office of Central Java. Research begins by surveying the location of the bridge, collecting the data, then designing and comparing the bridge upper structure design with both the PCU Girder and PCI Girder. The research shows that the design of PCU Girder bridge requires less girder than the PCI Girder, but the total area of the Girder is 36% greater than PCI Girder. Likewise, the need of tendons, moment, and shear reinforcement of PCU Girder bridge is more than the PCI Girder bridge.
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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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.
PERBANDINGAN PERANCANGAN SUMUR RESAPAN AIR HUJAN MENGGUNAKAN METODE SUNJOTO DAN SNI 03-2453-2002 PADA BANGUNAN KOMERSIAL DI JALAN KALIURANG KM 12 SLEMAN JOGJAKARTA Rifky Adhi Prasojo; Sri Amini Yuni Astuti
TEKNISIA Vol. XX, No. 2, November 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Imbalance between suction and recharging of groundwater in Kampus Terpadu UII Yogyakarta triggers declined of free water level. The phenomenon can interfere ecosystem balance. Recharging wells are needed to maintain groundwater balance in the surrounding area of Kampus Terpadu UII.Infiltration data as primary data was obtained by using infiltrometer ring. Rainfall data as long as 10 years from narrow rainfall station was used to calculate 5-year return period of rainfall intensity. Both data was used to design recharging wall by using equation presented by Sunjoto method and SNI 03-2453-2002 method.The research results showed that the constant infiltration rate was 0,000017-0,000127 m/second. Circle recharging wells were selected for comparison of both methods effectiveness to collect rainfall run off. Diameter of recharging wall was 1 m, and well depth was 2,5 m. Analyses results showed that number of recharging well designed by using SNI 03-2453-2002 method was more than recharging well designed by using Sunjoto method. Utilization of recharging well can be used to maintain groundwater level. The recharging well can collect rainfall run off more than 98%.
PERBANDINGAN KINERJA CAMPURAN HOT ROLLED ASPHALT (HRA) DENGAN BAHAN IKAT ASPAL PEN 60/70 DAN ASPAL RETONA BLEND 55 DENGAN VARIASI DURASI RENDAMAN AIR LAUT Bayu Aditya Pratama; Miftahul Fauziah, S.T., M.T., Ph.D.
TEKNISIA Vol. XXII, No. 1, Mei 2017
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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One aspect that is important in highway design is to protect from water. The damage caused by water on the asphalt, such as hole, peel and cracking. If the influence of water in a highway construction is not controlled, it will decrease the value of durability, consequently it will shortening serviceability of highway. The purpose of this research is to determine the performance of Hot Rolled Asphalt mixture with Pen 60/70 and Retona Blend 55 as binder due to variations of the duration of sea water immersion, with observing to the characteristics of Marshall, Indirect Tensile Strength, Index of Retained Strength and their Permeability. Testing of material specifications in this study refers to the specifications. The sea water immersion time are 0 hours; 48 hours; 96 hours; and 192 hours. HRA with asphalt Retona as binder has a value smaller than asphalt Pen 60/70. HRA with Retona are more impermeable than asphalt Pen60/70. The stability HRS with Retona lost of has a percentage of 18, 09 %, is smaller than the loss with asphalt Pen 60/70 the 20, 12 % on the duration of the immersing time 192 hours. The IRS with asphalt Retona be obtained better results in each the length of immersion the sea water than the asphalt Pen60/70. However, the percentage of the decline in the duration of the end of the immersing of the sea water, which is 192 hours, a mixture of HRA with the connective Retona, with a value of 11, 35 % compared with asphalt Pen 60/70 to come down to just 8, 66 %. While the testing of ITS in the duration of immersing time 192 hours with asphalt Retona has a value of 10, 83 %, larger than asphalt Pen 60/70 to the decline in only 6,45 %.
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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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.
PENYUSUNAN STRATEGI DISASTER MANAGEMENT SEBAGAI MITIGASI RISIKO BENDUNGAN DALAM PENGELOLAAN WADUK DAN BENDUNGAN CIRATA Mochammad Agustian; Danizy Frentakoza
TEKNISIA Vol. XXII, No. 2, November 2017
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Cirata Dam was built in 1983 and has a capacity of 2 volumes billion cubic meters of water. With such capacity, the Cirata dam has a potential hazard and high risk in the event of dam failure. Therefore, disaster management is needed to minimize the impact that may occur. PT PJB BPWC as the dam manager has preventive and compiled plan for emergency response to disaster management in accordance with PUPR Ministerial Regulation No. 27 of 2017 which regulates the three pillars of dam security conception. Monitoring instruments installed on the body of the dam on a regular basis can inform condition of the dam body structure. Besides that, the readiness of infrastructure, facilities and infrastructure needed when handling disaster emergencies to affected areas and communities, such as evacuation routes, assembly points and early warning systems that are important supports in disaster risk mitigation. Stages in the implementation of emergency response are also prepared in the form of document on the contingency of failure of the Cirata dam. All of these programs are planning in the implementation of emergency response so as to minimize losses and casualties that may occur.
POLA PENANGANAN GENANGAN AIR HUJAN DENGAN PENDEKATAN KONSEP BLUE GREEN CITIES DI KAWASAN KAMPUS UGM Moh. Dahri Lumuan; Joko Sujono; Intan Supraba
TEKNISIA Vol. XXII, No. 2, November 2017
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Land use changes due to the expansion of the construction of educational infrastructure facilities at the Gadjah Mada University (UGM) Campus Area continue to develop. As a result, the open space is decreasing. This condition causes the ability of the land to absorbing rainwater decreases so that runoff of surface water increases, and cause inundation. This is evidenced by the presence of puddles at 15 points monitoring during rain events. The purpose of this study is to reduce rainwater nundation by absorbing water into the ground based on the Blue Green Cities (BGC)concept. The method used is the green infrastructure method by building a absorbingpark/bearing park and roof garden. From the potential for the construction of absorbing park/bearing park covering an area of 517,740 m², only 9,006 m2 have bearing. While the potential of the roof garden is as large as 9,881 m², has not been used optimally. There is only one existing building has a garden roof, namely the Sanitary Engineering Laboratory in Kuningan. The calculation result of the capacity of the catchment garden in the rainy season period September 2016 to March 2017, the volume of rainwater that overflows was 8.14%. It is highly recommended that all existing parks be modified to be a garden with a beard, besides to maintain a green area can also reduce inundation points.
STABILISASI TANAH LEMPUNG DENGAN BAHAN TAMBAH ABU SEKAM PADI DAN KAPUR PADA SUBGRADE PERKERASAN JALAN Muhammad Rifqi Abdurrozak
TEKNISIA Vol. XXII, No. 2, November 2017
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Clay is a soft soil type that has fine grained soil characteristics and clay soil is very easy to inflate and shrink (expansive) by changes in water content. This shrinkage factor can cause the pavement layer above to be cracked and wavy. Because the nature makes clay soil as a less stable soil. This study aims to determine the influence of California Bearing Ratio (CBR) with the addition of rice husk ash and lime to soil improvement. Clay is from Kebonharjo village, Samigaluh sub-district, Kulon Progo district. This research used CBR testing method in laboratory using 28 samples. Sample samples conducted CBR testing without immersion and immersion CBR. The sample consisted of native soil with stabilized soil with additional 3%, 5% and 7% rice husk ash and 4% lime to be variable. The result of this research can be concluded that the CBR of original unsoaked soil shows the value of 9.46% and the original soaked soil is 1.16%. Addition of 3% rice husk and Lime 4% gives a significant increase of CBR up to 212% from original soil conditions. The curing process is proven to provide an increase in the CBR value, and at curing for 7 days shows that CBR value will have a constant value. The addition of rice husk ash up to 7% proved to increase the CBR value compared to the value of CBR of original soil. From swelling test shows the higher percentage of rice husk ash material gives the smaller swelling potential from the original soil by 4.8% to 0.032% on addition of rice husk ash (7%) and lime (4%).
PERHITUNGAN LUAS PENULANGAN METODE BISECTION PADA KOLOM BIAXIAL MENGGUNAKAN DELPHI DENGAN RUMUS BRESLER Kamaludin Kamaludin
TEKNISIA Vol. XXII, No. 2, November 2017
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

One of the roles of technology in the field of engineering is in the field of structural engineering in designing an element in a concrete structure. Effective area of reinforcement on elements column is one that must be considered in planning a concrete structure. The stage of designing reinforcement often requires a fairly long process complicated and repetitive to get the balance requirements. There are several cases in designing reinforcement in concrete structures that are difficult to design if done manually because it requires a long and repetitive process. Seeing this situation requires a way to implement software technology on biaxial column reinforcement design. Software creation usually uses a numeric methods to facilitate implementation into programming languages. Problems what arises is how to apply numerical methods to solve problems the design problem of this biaxial column reinforcement, then one or several methods are needed numerical will be applied to the completion of the reinforcement design on the biaxial column element this is by utilizing software engineering technology. Case studies that will done in this study is the reinforcement design needed to withstand the load outside which is quite effective and efficient. The results of this study include the first, determining reinforcement area is faster and more accurate. Second, the error results obtained in determine this concrete reinforcement can be arranged as small as possible from the given tolerance value. Third, the area of reinforcement obtained in general is only a few iterations. Fourth, The application of the method for two (bisection) can be used in determining the area of reinforcement in a biaxial column because this method always converges to the actual value of the reinforcement.

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