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INDONESIA
Eco Rekayasa
Published by Universitas Muhammadiyah Surakarta
ISSN : 19074026     EISSN : -     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Eco Rekayasa: Jurnal Teknik Sipil fokus di bidang Teknik Sipil dan Lingkungan, antara lain: Struktur, Hidro, Transportasi, Geoteknik, Manajemen Konstruksi, dan Lingkungan.
Arjuna Subject : -
Articles 40 Documents
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REHABILITASI SALURAN TARUM BARAT TERKAIT TATA RUANG WILAYAH JABODETABEK Sumiarsih, Made; Legono, Djoko; Kodoatie, Robert
Eco Rekayasa Vol. 11. No.1, Maret 2015
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

West Tarum Canal (WTC) is a canal to convey water for irrigation to the surroundings area  and for distributing raw water to Jakarta area. The total length of WTC is 69.8 miles, starting from the Curug weir to the Ciliwung River. WTC has been operated for 40 years. Recently, there has been a decline in function of this canal up to 70%. For that reason, this canal is required rehabilitation to restore it function. This paper highlights the planning and implementation of the rehabilitation work related to spatial planning of Jabodetabekpunjur.
PEMAHAMAN SISWA SMA TENTANG ARTI MARKA JALAN DAN PERATURAN LALU LINTAS Jatiputro, Achmad Hercahyo; Setiyaningsih, Ika; Mulyono, Gotot Slamet
Eco Rekayasa Vol. 11. No.1, Maret 2015
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

The rapid development of Surakarta closely impact on people mobility and transportation in the city. It can be seen from traffic volume increasing on some major roads in Surakarta. At peak hour, traffic in Surakarta is dominated by motorcycle. According to Police Traffic Unit of Surakarta data, the highest ranked accident by the type of mode of transportation is a mo-torcycle and the highest accident victims in the productive age which is 16-30 years. By education level, the highest number of traffic violations conducted by the level of high school education. Based on this condition it is necessary to do research on the characteristics of high school students who use motorcycles. The focus of this research is to determine high school student understanding of the road markings meaning and traffic regulations. This study uses a questionnaire tools that have previously been tested for validity and reliability. Research sample is high school student of Batik 2 Surakarta with a total sample of 140 respondents.The results showed that the level understanding to road markings obtained 78 respondents are very understand, 51 respondents including category of understand and as many as 11 respondents do not understand. The results showed that the level understanding to road markings obtained 78 respondents are very understand, 51 respondents including category of understand and as many as 11 respondents do not understand. While the results of the discussion on the understanding of traffic regulations showed the respondents level of understanding with the three classifications which is very understand there were 121 respondents, 19 respondents are understand classification and classification do not understand as much as 0 respondents.
HAZARD INDEX and BUILDING VULNERABILITY ASSESEMENT IN PURBAYAN, KOTAGEDE, YOGYAKARTA Muntafi, Yunalia
Eco Rekayasa: Jurnal Teknik Sipil Vol. 12. No. 2, September 2016
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

There are so many natural disasters ever happened on many regions of Indonesia. The destructive impact of it has brought into focus the need for proper risk assessment. The great earthquake of May 26 2006 in Yogyakarta was responsible for the deaths of more than 5,000 people. The flood of 3 April 2008 in the same general area caused some devastation. The landslide of 22 March 2010 destroyed the Kaligesing-Yogya highway. Purbayan is one of villages in Kotagede district which is quite frequently hit by various kinds of disasters. Disasters such as these occurred in Purbayan need proper risk assessment studies to minimize the death toll and destruction. This study determined to get the hazard index of each kind of disaster that ever happened in Purbayan, Kotagede to find the biggest disaster risk of it. Analysis is performed by giving score to each kind of hazard, namely earthquake, flooding, landslide, strong wind, and fire uses risk assessment. This study was begunby observing and interviewing chief of neighborhood, some community leaders and local residents, then analyze it uses hazard identification analysis. Result in this study indicate that the hazard risk index of earthquake risk is 3,0, flooding is 2,46, fire is 1,58, and both landslide and strong wind is 1,0. This study shows that earthquake is the biggest disaster risk in Purbayan, Kotagede. The number of residential buildings that are vulnerable due to the earthquake as much as 36%, which is dominated by the building of type C, E, and F, which is the home using a combination of masonry wood frame, masonry without reinforcement, and a frame/wall of bamboo.Key words : disaster, earthquake, vulnerability assessment, hazard index
ANALISIS PENGARUH GENANGAN AIR LINGKUNGAN PADA PELAKSANAAN PROYEK HOTEL HARRIS & POP! SOLO TERHADAP BIAYA sahid, nur; Abdurosid, Jadi; asroni, Ali; Darwanto, Dedi
Eco Rekayasa: Jurnal Teknik Sipil Vol. 12. No. 2, September 2016
Publisher : Universitas Muhammadiyah Surakarta

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Dengan semakin banyaknya bangunan hotel yang ada di kota Solo menyebabkan sedikitnya lahan yang tersedia untuk tempat parkir hotel. Oleh karena itu diperlukan sebuah tempat yang memadai dan berfungsi untuk lahan parkir pada bangunan hotel yang ada. Basement atau biasa disebut ruang bawah tanah adalah salah satu alternatif yang bisa berfungsi sebagai lahan parkir. Dalam pembuatan sebuah basement diperlukan proses penggalian tanah dengan elevasi tertentu di bawah muka tanah asli. Umumnya masalah yang timbul dalam pelaksanaan penggalian dalam pembuatan basement adalah keberadaan genangan air tanah yang terdapat di area galian. Salah satu cara untuk menjaga area galian tetap dalam keadaan kering adalah dengan menggunakan sistem groundwater control atau dewatering. Metode dewatering  yang digunakan adalah metode predrainage dan metode open pumping. Metode predrainage bekerja dengan menggunakan pompa permukaan yang memompa volume air sebesar 1035,2 liter sedangkan metode open pumping bekerja menggunakan pompa rendam yang memompa debit air rencana sebesar 1684,80 liter/menit. Total analisis biaya pelaksanaan dewatering adalah Rp 454.896.604,00 sedangkan perhitungan total biaya dari pihak kontraktor adalah Rp 483.400.000,00.
PENAMBAHAN SATU LANTAI TINGKAT PADA PORTAL GEDUNG BETON BERTULANG TIGA LANTAI Asroni, Ali
Eco Rekayasa: Jurnal Teknik Sipil Vol. 11. No.1, Maret 2015
Publisher : Universitas Muhammadiyah Surakarta

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The aim of this research was to compare three and four floors of reinforce concrete portal design, and the  possibility of the addition of one floor above the three floors building based on building safety. Research was carried out by taking the example of two office building portals constructed in the earthquake zone-one. Both portals were made from the same sketch plan and designed in the full elastic system. The load combinations (dead load, live load, and earthquake load) were subjected to both portals. The loads complied with the Indonesian Code (Tatacara Perhitungan Struktur Beton Untuk Bangunan Gedung, SNI 03-2847-2002). The dimension of portal structures (beam, column, sloof, and foundations) and their reinforcements were properly designed to carry the loads. Based on the dimension of portal and their reinforcement obtained, a comparison could be made up of total reinforcing and spacing of begel on both portals, and the possibility of the addition of one floor above the three floors building. The results showed that the dimensions of the structure (column, sloof, and foundation) of four floors portal were bigger than three floors, had greater number of total longitudinal reinforcement (include of beam), and the begel space of edge beam was more tightly. Moreover, the addition of one floor above the three floors would be dangerous for building safety  and users.
PENGARUH KOLOM PASIR TERHADAP KONSOLIDASI TANAH LEMPUNG LUNAK Listyawan, Anto Budi; Wiqoyah, Qunik; Ningsih, Rena; Widhi Satriyana, Marten Widhi Satriyana Ramadlan
Eco Rekayasa: Jurnal Teknik Sipil Vol. 11. No.1, Maret 2015
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

The  road weaving near Sragen city Central Java has been daily problem  in  last decade. The  existing of high expansive  clay soil in subgrade below the road foundation has been identified as the major cause of this problem. Sand Column become one solution to improve the subgrade since it can ab-sorb the water  from the void of clay soil and drain into the channel. The re-search develops a model of Sand column in laboratorium. The box of 1.0 m x 0.4 m x 0.4 m has been created. 15 cm diameter of sand column then installed at the toe and samples for consolidation test are taken from various distances from the centre of column (i.e. 16.67 cm; 33.33 cm; and 50 cm). The result shows that the Sand Column can improve the soft clay soil in terms of consolidation. The coefficient of consolidation increases as the compression index drops. Consequently, the consolidation settlement can be re-duced significantly.
KAJIAN KETERSEDIAAN LAHAN DITINJAU DARI RENCANA STRATEGIS PENGEMBANGAN KAMPUS BERKELANJUTAN (Studi Kasus di Beberapa Lokasi Kampus FKIP UNS) Sukatiman, Sukatiman
Eco Rekayasa: Jurnal Teknik Sipil Vol. 11. No.1, Maret 2015
Publisher : Universitas Muhammadiyah Surakarta

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The research purposed was  mapping campuses situations toward to sustainable strategic plan.  Kind of research is qualitative descriptive focused on specific targets. Its comprises of exsisting condition in 3 location campuses,  those were PTK Pabelan campus,  PGSD campus, and FKIP UNS Kentingan campus. The research showed that : 1) environment condition of three (3) location campuses had sustainable infrastructure, available of reforestasion, and  cozy environment. 2) PTK Pabelan and PGSD Laweyan campuses had available open space suitable with regulation of Public Works. 3) FKIP Kentingan campus was over land used.
KINERJA KA SANCAKA KELAS EKSEKUTIF DAN KELAS BISNIS DITINJAU DARI KEPUASAN PENGGUNANYA Setiyaningsih, Ika
Eco Rekayasa: Jurnal Teknik Sipil Vol. 11. No.2, September 2015
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

KA Sancaka that serve Yogyakarta-Surabaya route has a very important role for the movement of people and goods between the two cities. Competition among modes of land transport and air modes also requires the ope-rator to be able to provide good performance for users KA Sancaka. For that is necessary to study how users KA Sancaka assess the performance of both the executive class or business-class. Data retrieval is based on the results of questionnaire respondents Sancaka KA users. The total number of samples of 558 respondents bottom-right on the population data of passenger volume in the first week (dated August 2 to 8, 2010) as many as 1287 passengers in business class and 687 executive class passengers. Analysis of data using IPA (Importance Performance Analysis).Results indicate that the performance variable performance Sancaka KA executive class and business class today is pretty good. Variables placed quadrant 1 need attention from PT. KAI From each of the 24 variables, 7 variables in executive class and 13 in business class variable has been in line with expectations applications of nanya. Variables in quadrant 3 can be maintained in accordance with what has been done in the current conditions. Variables in quadrant 4 although considered important by the user can still be tailored to the user's wishes.
ANALISA KELAYAKAN TARIF AIR BERDASARKAN PENGEMBALIAN BIAYA PENUH DAN SENSITIVITAS NPV Sandhyavitri, Ari; Herlina, Dewi
Eco Rekayasa: Jurnal Teknik Sipil Vol. 11. No.1, Maret 2015
Publisher : Universitas Muhammadiyah Surakarta

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The objectives of this research study were to : (i) investigate how much water tariffs should be paid by consumer in order to serve the project investement and operation based on the full cost recovery schemes, and (ii) investigate sensitivity factors affeted to project NPV.  This study fokus on the Dumai,water development project, Riau Province. The project investment was approximatelly Rp. 82,34 billion  (Alternative 1 for water treatment facility of 80 l/sec) and Rp. 134,308 million (Alter-native 2 for watar treatment facility of 160 l/sec) for 25 years. Based on the  economic analysis, it was revealed that; the Net Present Value (NPV) of  the alternative 1 project was Rp. 4.4 billion (with water tariffs of Rp. 7.000,-/m3 for a household and Rp 9.000,-/m3 for an industrial sector), BCR =  1,135, and IRR = 16,829 %.  This IRR value is higher then bank interst rate (12%). Alternative 2 will yield NPV of 40 billion (with tariff of Rp. 5.700,-/m3 for Household and Rp . 8.000, -/m3 for an industrial sector), BCR= 1,122 and IRR = 16,433 % . Based on these economic analysis, this project was considered feasible to proceed. The factors that are relatively sensitive for the NPV of project were; chemicals, electricity and fuel, staff salaries, and interest rates.
ANALISIS PERBANDINGAN RENCANA ANGGARAN BIAYA STRUKTUR PELAT LANTAI KONVENSIONAL DENGAN SISTEM FLOOR DECK Sahid, Muh Nur; Priyanto, Budi; Winardi, Winardi
Eco Rekayasa: Jurnal Teknik Sipil Vol. 11. No.1, Maret 2015
Publisher : Universitas Muhammadiyah Surakarta

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This study is intended for comparison of the structure of a conventional floor slab and floor deck system. The aim of research looking for an easy job execution, performance and productivity of labor and equip-ment are high, the effectiveness of a faster time and low cost of the two methods. Object of research on Building Project National Craft Council and Scout (DESPRA) Central Java, Semarang. This comparative study covers the analysis of the implementation of the work, the analysis of the performance and produc-tivity of labor and equipment, timing analysis, the cost of implementation with field observation method. Implementation of research results slab floor deck system more effective and efficient both from the level of difficulty and time required compared to conventional floor plate. Labor productivity and higher tool structure floor deck slab system compared to conventional floor plate structure. While the performance of slab floor deck system is better than the conventional floor plate. The timing of the slab floor deck system faster than conventional floor plate difference of 6.92 days. Costs on the work floor deck slab system less than a conventional floor plates by a margin of 8.105%

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