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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 7 Documents
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Search results for , issue "Vol. XXII, No. 2, November 2017" : 7 Documents clear
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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Abstract

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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Abstract

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.
ANALISIS KESTABILAN CABLE STAYED BRIDGE AKIBAT PENGARUH RASIO LEBAR TERHADAP BENTANG JEMBATAN Sumaiyah Ohorella; Harsoyo Harsoyo
TEKNISIA Vol. XXII, No. 2, November 2017
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Cable stayed is one of the long spans bridge structure that can minimize the use of pillars so that access under the bridge can be utilized optimally. The main structure of the cable stayed bridge is a cable connected from the bridge deck to the pylon. Problems in long spans bridge structure is wind can provide significant changes in the structure of the bridge. Based on previous experience and research, shows that the influence of wind can cause security and service problems. It can even cause instability in the entire bridge structure due to the flexible nature of its structure. This study aims to analyze the stability of the cable stayed bridge due to the influence of the span ratio to the width of the bridge. The width of the bridge is varied from 14 m to 24 m every 1 m addition modeled using the SAP2000 v.14 program. The object of research using Jembatan Merah Putih, Ambon. The structural response is observed as the natural vibration frequency, internal force and deformation of the structure. The larger the ratio of bridge width to the main span of the bridge, the greater the weight itself and the load of the service work on the bridge structure. So the values of the inner forces that are generated on the main structure include the tower and the bridge deck will be greater for each additional width of the bridge. For the bridge width ratio to bridge span of 0.093 to 0.133, the width of the bridge 14 m to 22 m remains stable against the aerodynamic effect due to wind according to Leondhart, B ≥ L / 30 and still qualifies the maximum deflection according to AASHTO (dmax= 𝐿𝑡𝑜𝑡𝑎𝑙/800) and AISC (dmaks= 𝐿/150).
SIMULASI ALIRAN BANJIR LAHAR PASCA ERUPSI GUNUNG MERAPI 2010 TERHADAP KEBERADAAN SABO DAM DI SUNGAI GENDOL Muchamad Abdul Kholiq
TEKNISIA Vol. XXII, No. 2, November 2017
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Eruption of Mount Merapi in 2010 was the biggest eruption since 1872. On eruption in 2010, the mountain spewed out 140 million cubic meters of lava. While the direction of the lahar slide is mostly south. Therefore, several rivers south of Mount Merapi experience lava buildup which can become lava floods if exposed to heavy rain, one of which occurs on the Gendol River. Qualitative methods are used in this thesis. Qualitative data are obtained through a variety of data collection techniques, namely analysis of simulations, documents, and observations. This study took place around the banks of Sungai Gendol. This phenomenon of lava flood often causes many losses both materially and non-materially. There are various ways to mitigate lava floods, one of which is to simulate lava floods by using numerical modeling to estimate the movement of lava flood flows and their coverage area. In this research, the simulation of lava flood uses numerical modeling using the Dimlar V.1.0.2011 application. This Simlar application produces a simulation of the flow of base lava flood geographic information system that can be processed to retrieve data on the direction of lava flood propagation, the volume of lava flood flow and the area of lava flood coverage. And also can be given the existence of SABO building, so that it can compare the time taken by the flood to glide on the river given the SABO building or not given the SABO building.
KAJIAN ANALISIS RISIKO BENCANA TANAH LONGSOR SEBAGAI DASAR DALAM PEMBANGUNAN INFRASTRUKTUR DI DESA SRIHARJO KECAMATAN IMOGIRI KABUPATEN BANTUL Sri Aminatun
TEKNISIA Vol. XXII, No. 2, November 2017
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Sriharjo Village Imogiri District Bantul Regency is one of the villages that are vulnerable to landslides located on the morphology of the ridge to the hills in the eastern region of Bantul Regency. In each rainy season some areas in the village of Sriharjo landslides occurred. Basedon the map of landslide incident from the Regional Disaster Management Agency in 2011, Sriharjo village is one of the villages in Bantul Regency that experienced high intensity of landslide events, one of the ways to mitigate the landslide disaster is to assess and analyze the risk of landslide disaster in detail. This study aims to identify the homes of residents who are in landslide threat zone, be it a high threat zone or medium threat zone. The method used in this research is descriptive method with qualitative approach combined with quantitative method used to give a clear picture about the number of houses in each zonation. Sources of data used are primary and secondary data sources through interviews and documentation. The results of this study indicate that 1) the number of households in the high risk zone is 119 houses, in the yellow risk zone is 136 houses. 2) The village of Sriharjo has a high threat, medium to high vulnerability, and medium capacity, which means having a medium to high risk. 3) Recommended infrastructure development for disaster mitigation.

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