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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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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%).
ANALISIS VARIABILITAS SPASIAL DAN TEMPORAL CURAH HUJAN DI WILAYAH GUNUNG MERAPI Dewi Ayu Sofia; Joko Sujono; Djoko Legono
TEKNISIA Vol. XXIII, No. 1, Mei 2018
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Rainfall intensity is one of the main trigger factors of cold lava flow on the active volcano slope, such as Mount Merapi. In the event of cold lava flood, where the rainfall as the trigger, there is a process of transformation of rainfall into the flow. Therefore, it is necessary to analyze the characteristics of rainfall, such as variability in terms of space (spatial) and time (temporal). This is important because of Indonesia is passed by the equator, so the rainfall variability is very high. This paper will analyze the spatial and temporal variability of rainfall in the area of Mount Merapi. Rainfall spatial variability was mapped based on the results of interpolation of the maximum rainfall data by Inverse Distance Weight (IDW) method, while the temporal variability was analyzed based on the average rainfall data distribution or maximum annual rainfall of each duration by unisolated event method. The results showed that the average rainfall or maximum rainfall for duration of 1 hour - 8 hours mostly occurred in the daylight until afternoon, between the hours of 13:00 to 17:00 with the incidence of heavy rain occurred in a short duration that is on the duration of 1 hour, 2 hours , 3 hours and 4 hours. Spatial mapping results show similar pattern of distribution where the maximum rainfall position is located in the west side of Mount Merapi.
STUDI GERUSAN DI HILIR BENDUNG KOLAM OLAK TIPE VLUGHTER DENGAN PERLINDUNGAN GROUNDSILL Adi Daning Pangestu; Sri Amini Yuni Astuti
TEKNISIA Vol. XXIII, No. 1, Mei 2018
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Weir is a river building designed to meet the needs of irrigation. River containment will result in considerable elevation differences between upstream and downstream weirs and result in hydraulic jumps. Hydraulic jumps that occur downstream of the weir will cause scouring downstream of the dam to damage the stability of the weir. So that in the planning of weir there is energy damper of stilling basin. Given the complexity and importance of the problems occurring downstream, the study of scouring downstream from weirs due to the influence of flow to river discharge needs to be given special attention, so that later it can be seen the scouring pattern and the scour depth that occurs. A study on scouring downstream of weirs was conducted in a laboratory with a weir model using a stilling basin vlughter type pond that flowed with three variations of discharge, testing each variation of the flow for 60 minutes. Then tested by giving  protection at downstream weir using groundsill with distance Lmax and ½ Lmax. The experimental results show the greater the flow discharge the greater the scour depth and the flow characteristic values such as the Froude and Reynold numbers. The sediment transport balance was obtained during observation of scour depth at 50 minutes. With the protection of groundsill provide reduction of scour depth by 13.1579% at the groundsill of Lmax distance and 9.2105% at groundill distance of  ½ Lmax.
KINERJA SEISMIK STRUKTUR PADA TIPE GEDUNG DENGAN KETIDAKTERATURAN KETINGGIAN DAN DENAH Eka Faisal Nurhidayatullah; Mochamad Teguh
TEKNISIA Vol. XXIII, No. 1, Mei 2018
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Makalah ini membahas kinerja seismic struktur pada bangunan gedung, yang memiliki vertical and horizontal irregularrities ditunjukkan dengan elevasi bangunan A lebih tinggi dan lebih panjang dari pada bangunan. Bangunan tersebut mempunyai beberapa keunikan desain, antara lain memiliki dua massa gedung (blok A dan B) yang dibangun di atas tanah berkontur. Untuk menyatukan dua massa bangunan tersebut dihubungkan oleh struktur tangga dengan elevasi yang berbeda. Massa bangunan A terdapat dilatasi terbatas atau tidak menerus. Pemeriksaan kinerja seismik dilakukan guna menentukan implikasi yang ditimbulkan dari keunikan desain bangunan tersebut ketika dilanda gempa dan bagaimana solusi atau metode yang tepat untuk mengatasinya.Pemerikasaan kinerja seismik dilakukan dalam tiga tahapan berdasarkan FEMA 310 (1998), yaitu evaluasi tahap 1 (screening) dengan Rapid Visual Screening (RVS) sesuai FEMA 154 (2002), evaluasi tahap 2 (analisis linier) menggunakan analasis beban gempa statik ekuivalen dan analisis dinamik respon spektrum untuk menentukan nilai Demand Capacity Ratio (DCR), dan evaluasi tahap 3 (analisis nonlinier) menggunakan analisis pushover dengan program SAP2000 v.14. Titik kinerja (performance point) ditentukan dengan Metode Spektrum Kapasitas berdasarkan ATC-40 (1996). Level kinerja struktur gedung ditentukan berdasarkan kriteria drift ratio yang disyaratkan oleh ATC-40 (1996). Kondisi sendi plastis struktur gedung ditentukan dengan FEMA 356 (2000).Dari hasil penelitian tahap 1 didapatkan hasil RVS menurut FEMA 154 (2002)adalah not good atau terdapat bagian struktur dan non struktur yang tidak memenuhi persyaratan . Nilai DCR pada analisis tahap 2 untuk beberapa elemen balok sudah lebih dari 2 atau sudah dalam kondisi nonlinear in-elastik, sehingga diperlukan evaluasi lebih detail pada evaluasi tahap 3. Pada evaluasi tahap 3, diperoleh level kinerja struktur gedung damage control.
ANALISIS LAIK FUNGSI BANGUNAN HUNIAN VERTIKAL (Studi Kasus: Gedung Rusunawa Kabupaten Sleman, Yogyakarta) Yufiansyah Akhyar Rasyid
TEKNISIA Vol. XXIII, No. 2, November 2018
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Bangunan hunian vertikal seperti bangunan gedung Rusunawa merupakan bangunan hunian vertikal yang dibangun untuk masyarakat berpenghasilan rendah (MBR). Rusunawa sebagai bangunan publik harus andal dan laik, sehingga kepuasan pengguna atau penghuni bangunan dapat tercapai. Sesuai Undang-Undang Nomor 28 tahun 2002 tentang Bangunan Gedung dan Peraturan Pemerintah (PP) nomor 36 tahun 2005 yaitu bangunan gedung harus memenuhi persyaratan secara administrasi dan teknis sehingga gedung laik fungsi. Laik fungsi bangunan dapat diukur dengan menilai keandalan disetiap masing-masing komponen bangunan gedung rusun. Selain itu kelaikan bangunan dapat menjadi faktor yang berhubungan dengan kepuasan penghuni bangunan.Penelitian ini bertujuan untuk mengetahui aspek komponen bangunan yang dominan dalam tingkat kelaikan bangunan hunian vertikal dan mengetahui hubungan tingkat kepuasan penghuni bangunan dengan tingkat kelaikan bangunan hunian vertikal. Metode penelitian yang digunakan adalah metode analisis deskriptif korelasi. Teknik pengumpulan data untuk penilaian kelaikan bangunan gedung menggunakan form daftar simak SLF dengan. Sedangkan pengumpulan data tingkat kepuasan penghuni bangunan menggunakan form kuisioner dengan melakukan wawancara.Hasil penelitian menunjukkan bahwa komponen bangunan yang dominan dalam mempengaruhi kelaikan bangunan hunian vertikal yaitu komponen Mekanikal. Adapun indikator-indikator masing-masing komponen bangunan yang dominan mempengaruhi kelaikan bangunan dalam komponen Arsitektural adalah dinding dalam dan dinding luar, dalam komponen Mekanikal adalah urinoir, dalam komponen Elektrikal adalah tata suara, dalam Tata Ruang Luar adalah penerangan luar, sedangkan dalam komponen struktural tidak mempengaruhi kelaikan bangunan karena sudah sangat baik dalam kelaikan bangunan hunian vertikal. Sedangkan tingkat kelaikan bangunan hunian vertikal berhubungan erat dengan tingkat kepuasan penghuni bangunan.Kata Kunci: kelaikan bangunan, kepuasan penghuni, bangunan hunian vertikal
PEMETAAN RISIKO SEBAGAI DASAR UNTUK MITIGASI BENCANA TANAH LONGSOR DI DESA MUNTUK KABUPATEN BANTUL Sri Aminatun
TEKNISIA Vol. XXIII, No. 2, November 2018
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Muntuk Village Dlingo District Bantul Regency is one of the villages that are vulnerable to landslides located on the topography of the ridge to the hills in the eastern region of Bantul Regency. In each rainy season some areas in the village of Muntuk landslides occurred. Based on the map of Landslides Prone Area from the Regional Disaster Management Agency, Muntuk Village is one of the villages in Bantul Regency that has steep slopes, so it has high potential for landslides, 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 116 houses, in the hight hazard zone is 160 houses. 2) The village of Muntuk 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.
PERBANDINGAN METODE ANALISIS KAPASITAS LENTUR DAN FAKTOR REDUKSI PELAT COMBIDECK TERHADAP UJI LABORATORIUM hariadi yuliantoo
TEKNISIA Vol. XXIII, No. 2, November 2018
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Combideck slab was a floor slab that used a steeldeck as positive reinforcement and as formwork that hold the flooring concrete cast. While combined with wiremesh as negative reinforcement, the combideck system even more efficient than half slab casting method for concrete flooring system (Siregar, 2010). However, there is no standard method in Indonesia to analyze the flexure capacity of combideck. This study compared 3-analysis method (ultimate, working stress and SDI-ANSI) to laboratory test result that already done by Kadir&Sudarmadi (2008). Based on the published data, this study analyzed the combideck section properties to determine the theoretical flexure capacity, than it compared to the test result for validation. Besides that, this study also evaluated the reduction factor from the all 3 method to laboratory test result. This study validated that the working stress and SDI-ANSI method were accurate to analyze the slip flexure capacity, but the ultimate method was accurate for maximum flexure capacity. Because of the theoretical capacity form all 3 method was slightly greater than the test result (SDI-ANSI= 5.79%, working stress= 4.83%, ultimate method = 5.72%), the reduction factor from this study resulted as =0.76.
PEMANFAATAN LIMBAH KORAN DAN ABU TERBANG SEBAGAI BAHAN CAMPURAN DINDING PANEL DENGAN PERKUATAN WIRE MESH Mochammad Nur Huda; Mochamad Teguh
TEKNISIA Vol. XXIII, No. 2, November 2018
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

In general, Construction used a bricks, concrete bricks, or hebel as one of the wall materials.  One another alternative is the panel wall. The panel wall is a unit of severals concrete blocks and it arranged in such a way that it becomes a wall. The purpose of this study was to determine the strength of the wall panels made of papercrete. The wall panel of the papercrete can be obtained by mixing pulp, fly ash, and sand with cement paste as an adhesive material and then manually printed on a formwork with a sample in the form of cubes with a size (555) cm3 for concrete paper testing. Whereas in the wall sample, in the form of beam size (50505) cm3 for the test of compressive strength, size (100505) cm3 for flexural test, and size (1201205) cm3 for diagonal shear test. The composition used (Portland Cement : Sand : Paper : Fly ash) is (1:3:0,25:0), (1:3:0,25:0,2), (1:3 0,5:0,2), (1:3:0 ,5:0,4). Each wall sample was given reinforcement in the form of wire mesh with 2 types of placement, namely a single wire located in the middle of the span and two wires installed between the layer of the papercrete span. From the test results obtained an average volume weight ranged from 1,965 to 2,068 grams / cm3, with the highest papercrete compressive strength in the sample (1:3:0,25:0,2) of 15,619 MPa. In wall testing, the highest compressive strength was found in samples with single wire mesh reinforcement with an average of 12,31 MPa. The highest flexural strength in the sample with double wire mesh reinforcement of 3,573 MPa. In the diagonal shear strength test the highest results were obtained in the sample with a double wire mesh reinforcement of 2,587 MPa.
Analisis Alternatif Pemilihan Biaya Siklus Hidup pada Masa Pemeliharaan Ruas Jalan Janti – Prambanan Km 7+759-8+750 Rayendra Rayendra
TEKNISIA Vol. XXIV, No. 1, Mei 2019
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol24.iss1.art3

Abstract

The highway is one of the land transportation infrastructure that serves to connect one area to another for public activities such as economics and social activities. Safe, comfortable, and efficient roads are not avoided by the availability of a flat road and no significant road damage.This research to calculate the life cycle cost analysis of the road with the calculation of pavement thickness that has been done by Ramadhani (2017). The method used in this research is by study case method, by collecting data about Janti-Prambanan Road section KM 7 + 750-8 + 750 and analyzing life cycle cost by estimating road maintenance that will be done during the life of the plan.Based on the analysis that has been done, the cost of construction or initial cost that must be issued based on the thickness of pavement set by Ramadhani (2017) with the total thickness of paved layer 50 cm is Rp. 14,089,007,000. The cost of maintenance at Alternative1 is Rp. 2.565.778.485,91 and at Alternative2 is Rp. 2,555,861,411.86. The total cost of the road life cycle in Alternative 1 is Rp. 16.654.785.485,91 while at Alternative 2 of Rp. 16,644,868,411.86. Analysis of the lifecycle cost of the two alternatives found EUAC for Alternative 1 is Rp. 65,649.89, while for Alternative 2 is Rp. 65,610.80. So that can be said by advancing the rehabilitation at least save on maintenance costs.
DAMPAK PETUGAS PENGATUR LALU LINTAS TERHADAP KINERJA SIMPANG 4 TAK BERSINYAL LEMBAH UGM, YOGYAKARTA Verawanti Verawanti; Prima Juanita Romadhona
TEKNISIA Vol. XXIV, No. 1, Mei 2019
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol24.iss1.art5

Abstract

The arrangement of peak traffic flow in unsignalized intersections usually carried out by illegal traffic wardens (PTR) and legal traffic wardens (PR).Additionally, traffic management implemented by PTR and PR only during peak hours. This research was executed in4 unsignalized Intersection at Agro street – Bougenville street (Lembah UGM), Sleman. The high traffic volume without the arrangement at the intersection caused traffic jam, so the performance level decreased. This study aimed to determine the impact of PTR and PR and find out alternative solutions at the intersection. The methods for obtaining primary data were by surveying traffic volume data, vehicle speed data, queue length data, driving behaviours andgeometry in the field. The data analysis in this study used VISSIM 9.0.The intersection condition without traffic management of wardenshad delay as much as 21,93 seconds with level of service (LOS) C. Intersections management with PTR produced a value of intersection delay was 30,02 seconds with level of service (LOS) D. Intersections management with PR produced a value of intersection delay was 29,20 seconds with level of service (LOS) D. This result showed that the performance of the intersections in all conditions were worse conditions. The alternative solution in this research was traffic signal with average delay value was 30,31 seconds with level of service (LOS) D. Hopefully, management intersections with traffic signals could reduce accidents risk at intersections.

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