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AGREGAT
ISSN : 25412884     EISSN : 25410318     DOI : -
Core Subject : Engineering,
AGREGAT is a journal of Department of Civil Engineering, University of Muhammadiyah Surabaya. The journal will be published in every May and November yearly. The journal consists of result of research, literature review, and case reports created as realization of Tridharma college.
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Articles 204 Documents
Studi Komparatif Daya Dukung Pondasi Tiang Dengan Teori Meyerhoff Terhadap Teori L’Decourt Berdasar Hasil Uji N-SPT Di Surabaya Timur Isnaniati .; Defi L
AGREGAT Vol 2, No 2 (2017)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (934.345 KB) | DOI: 10.30651/ag.v2i2.1197

Abstract

AbstractThe condition of the land near the shore caused the land on this project site to be a soil of silt sand. With these conditions it is necessary to evaluate the bearing capacity because the bearing capacity is an absolute requirement that must be considered in the planning of a secure foundation. By knowing the bearing capacity we can plan the load that is given so that the ultimate bearing capacity is not exceeded because if the load that works beyond the ultimate supporting capacity will result in structural failure. The number of power support theorists forced planners to be able to compare the theory where the optimal bearing capacity is used for foundation planning.Calculation of bearing capacity of pile  is done by using two theories of Mayerhoof and L 'Decourt theory. Two data points of drill NSPT were used on the land of At-tauhid UM-Surabaya building located in East Surabaya. By providing variations the pole depth (20, 22 and 24 m) and selected square sectional shape (s = 0.5m) with safety factor 3 it can be calculated the bearing capacity of the end (Qp), the bearing capacity of the blanket (Qs), the bearing capacity utimate (Qult) as well as the bearing capacity of the permit (Qall) in order to compare the bearing capacity of the most effective of both theories. From the research results obtained the value of the average bearing capacity based on the value of comparison between L'Decourt to Mayerhof in DB-1 is Qp = 0.96, Qs = 2, Qult = 1.28, Qall = 1.28 and at DB-2 is Qp = 0.96, Qs = 1.99, Qult = 1.21, Qall = 1.21.                                                                                                                                              Keywords: Bearing capacity, N-SPT, Mayerhoof, L 'Decourt.  AbstrakKondisi tanah  dekat pantai menyebabkan tanah dilokasi proyek ini merupakan  tanah lanau kepasiran. Dengan kondisi tersebut  perlu dilakukan  evaluasi terhadap daya dukungnya karena  daya dukung merupakan syarat mutlak yang harus diperhatikan dalam perencanaan pondasi  yang aman. Dengan mengetahui daya dukung kita dapat merencanakan beban yang di berikan agar daya dukung ultimate  yang ada tidak dilampaui karena apabila beban yang bekerja melampaui daya dukung ultimatenya akan berakibat kegagalan struktur. Banyaknya teori daya dukung memaksa perencana untuk bisa membandingkan teori daya dukung mana yang optimal digunakan utuk perencanaan pondasi. Perhitungan daya dukung tiang dilakukan dengan menggunakan dua teori yaitu  teori Mayerhoof dan L’ Decourt . Digunakan 2 data titik bor  NSPT pada  tanah gedung At-tauhid UM-Surabaya yang berlokasi di Surabaya Timur . Dengan memberikan variasi kedalaman tiang (20, 22 dan 24 m) dan dipilih  bentuk penampang tiang persegi (s = 0.5m) dengan faktor keamanan 3 maka dapat  dihitung besarnya daya dukung ujung (Qp) , daya dukung selimut (Qs), daya dukung utimate  (Qult) maupun daya dukung ijin (Qall) agar dapat dibandingkan daya dukung mana yang paling efektif dari kedua teori tersebut.   Dari hasil penelitian diperoleh nilai daya dukung rata-rata berdasarkan nilai perbandingan antara L’Decourt terhadap Mayerhof pada DB-1 adalah Qp=  0.96 , Qs= 2, Qult= 1.28 , Qall= 1.28 dan pada DB-2 adalah Qp=  0.96 ,Qs= 1.99 , Qult= 1.21, Qall= 1.21. Kata kunci : Daya dukung, N-SPT, Mayerhoof,  L’ Decourt.
PERFOMA BIOCONC DALAM PENINGKATAN KUALITAS BETON Maknoe Basoeki
AGREGAT Vol 1, No 2 (2016)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (799.161 KB) | DOI: 10.30651/ag.v1i2.340

Abstract

ABSTRACTHigh strengh concrete is a concrete that has high compression strengh that used cement replacement materials to increased compression strengh. Cement replacement materials that usually used is silica fume and fly ash. In this paper, we observed the perfomance of high strengh concrete with OPC cement based material and silica fume as cement replacement (insertion), compared with Bioconc as micro-filler insertion, and also compared with paralel perfomance of both silica fume and Bioconc together in a concrete mix.  The variation of silica fume that used is 0%, 5%, 7,5% and 10%. Beside that, the variation of silica fume will be make as two variation, such as concrete with Bioconc and concrete without Bioconc to find out the influence of Bioconc. The w/c used is 0,25% from weight of binder, whereas to make a good workability then used superplasticizer. The variation of superplasticizer is find out by trial in the laboratory. The testing conducted at the age 1, 3, 7, 14, 21, 28 is compression strengh of paste, compression strengh of mortar, and compression strengh of concrete beside that at concrete specimen will be split and porosity test. From the result of research, the highest compression strengh at 28 days (B7,5M) is 69,71 Mpa, whereas the silica fume optimum is at 7,5%. Addition of Bioconc has no effect at concrete density but has an effect at compressive strengh. With Bioconc addition the compressive strengh increased ± 30%. Bioconc more effective in stand alone micro filler use. Mix use between Bicoconc-another filler may reduce its perfomance.Keywords : High Strengh Concrete, Compressive strengh, Bioconc, Silica fume ABSTRAKSIDalam penelitian ini akan dibuat beton mutu tinggi dengan menggunakan material dasar semen OPC dan silica fume sebagai pengganti semen. Kadar silica fume yang digunakan adalah 0%, 5%, 7,5% dan 10%. Selain itu dari kadar silica fume tersebut akan dibuat dua variasi yaitu beton dengan Bioconc dan beton tanpa Bioconc untuk mencari tahu pengaruh dari Bioconc tersebut. Faktor air semen yang dipakai adalah 0,25% dari berat binder, sedangkan untuk membuat workabilitynya bagus maka digunakan superplasticizer. Kadar superplasticizer yang digunakan dicari lewat trial pengujian di laboratorium. Pengujian yang dilakukan pada umur 1, 3, 7, 14, 21, 28 adalah uji tekan pasta, uji tekan mortar dan uji tekan beton, selain itu pada benda uji beton umur 28 hari akan dilakukan uji split beton dan uji porositas.           Dari hasil penelitian didapatkan kuat tekan beton tertinggi pada umur 28 hari (B7,5M) adalah 69,71 MPa, sedangkan variasi silica fume yang paling optimum ada pada kadar 7,5%. Penambahan Bioconc tidak berpengaruh pada berat volume beton tetapi berpengaruh pada kuat tekan beton tersebut. Dengan penambahan Bioconc maka kuat tekan beton meningkat sebesar ± 30%Kata Kunci :  Beton Mutu Tinggi, Kuat Tekan, Bioconc,  Silica fume
PENGARUH RENCANA PEMBANGUNAN TRANSPORTASI MASSAL TERHADAP EMISI GAS BUANG KARBON MONOKSIDA DI SURABAYA Mochammad Choirul Rizal
AGREGAT Vol 2, No 1 (2017)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (654.394 KB) | DOI: 10.30651/ag.v2i1.609

Abstract

The higher growth of vehicles, causing congestion on some roads and may worsen air quality in the city of Surabaya. Surabaya City Government plans to build Mass Transport System as an of efforts to decrease the high growth in the number of private vehicles. It is expected that with mass transportation, carbon monoxide (CO) emissions from transportation sector can decrease and air quality in Surabaya is improving. To know the change of carbon monoxide emission (CO) emission from motor vehicle source due to tram construction plan in Surabaya, it is necessary to do research on the topic. The location of this research is at Jalan Urip Sumoharjo and Jalan Basuki Rahmat.The research methodologi is calculating the amount of CO emissions of the existing condition, in the plan condition when mass transit transport (tram) is not in operation and the plan condition if the trams in operation. CO emission rate calculation is based on an analysis of vehicle speed for each condition.The results show for Urip Sumoharjo Road, estimated CO emission for planned condition if tram operates higher than before before tram operates. Compared with the existing condition, CO emissions at Urip Sumoharjo increased by 20.71% in pre-tram plan conditions, and increased by 36.25% at the time of the plan if the tram operated. As for the Basuki Rahmat Road segment, an approximate amount of CO emissions for the planned conditions if the tram operates lower than at the time before the tram operates. Compared with the existing condition, CO emission levels on Jalan Basuki Rahmat increased by 32.49% under planned conditions before the tram operated, and decreased by 2.98% at the time of the plan if the tram operated. This is thought to be the case because the percentage of private transporters using a tram of 25.43% is not significant compared to the reduction of road capacity for tram lines
Studi Dampak Pengembangan Pemukiman di Wilayah Pesisir Surabaya Timur Anna Rosytha
AGREGAT Vol 1, No 2 (2016)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1015.899 KB) | DOI: 10.30651/ag.v1i2.336

Abstract

ABSTRACTThe rapid development of Surabaya is a pull factor for people from outside the city of Surabaya to urbanization and sedentary, Added number of people will continue to demand an increase in the availability of the number of settlements (real estate), apartments, hotels , mall, both in the area of West Surabaya and East Surabaya, in addition to industrial and warehousing.Surabaya has undertaken various development to meet the needs of the growing number of population, one in the coastal areas of East Surabaya which is largely ponds and mangrove forests. Surabaya East region is an area with land use change occurs rapidly from several years. The phenomenon of land-use changes cover a wide area can be observed and analyzed, one with remote sensing technology. The results obtained from this study indicate a change in land use from 2003 to 2013 the most comprehensive, namely in the sectors of housing, mostly occurred in District Rungkut, Gunung Anyar and Sukolilo with a concordance rate of land use with RDTRK is low primarily concerned with preservation of mangrove forest area that current conditions for about 70% of the area controlled by the private sector, this will require more attention to the future because of the reduced catchment area potentially increasing the risk of flooding in the region. Keywords : remote sensing, land use, mangrove, flood ABSTRAKPesatnya perkembangan Kota Surabaya merupakan faktor penarik bagi penduduk dari luar kota Surabaya untuk urbanisasi dan menetap, Pertambahan jumlah penduduk tersebut akan terus menuntut peningkatan ketersediaan jumlah permukiman (real estate), apartemen, hotel, pusat-pusatperdagangan (mall) baik di daerah Surabaya Barat maupun di daerah Surabaya Timur, disamping industri dan pergudangan.Surabaya telah melakukan berbagai pembangunan dan pengembangan untuk memenuhi kebutuhan masyarakat seiring dengan meningkatnya jumlah populasi penduduk, salah satunya di wilayah pesisir Surabaya Timur yang sebagian besar merupakan areal tambak dan hutan mangrove. Wilayah Surabaya Timur merupakan daerah dengan perubahan lahan yang terjadi dengan cepat dari tahun ke tahun. Fenomena perubahan tata guna lahan mencakup wilayah yang luas dapat diamati dan dianalisa, salah satunya dengan teknologi penginderaan jauh. Hasil yang diperoleh dari penelitian ini menunjukkan adanya perubahan tata guna lahan dari tahun 2003 sampai 2013 yang paling luas, yaitu pada sektor permukiman yang sebagian besar terjadi di Kecamatan Rungkut, Gunung Anyar dan Sukolilo dengan tingkat kesesuaian tata guna lahan dengan RDTRK tergolong rendah terutama berkaitan dengan kelestarian kawasan hutan mangrove yang kondisi saat ini sekitar 70% dari area tersebut dikuasai oleh swasta, hal ini menuntut perhatian yang lebih untuk kedepannya karena berkurangnya areal resapan yang berpotensi meningkatnya resiko banjir di kawasan tersebut. Kata Kunci : Penginderaan Jauh, Tata Guna Lahan, Mangrove, Banjir 
Dampak Pembangunan Rusunawa Gununganyar Terhadap Kinerja Simpang Rungkut Madya-Gununganyar Sawah Kota Surabaya Dwi Muryanto
AGREGAT Vol 2, No 2 (2017)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1010.278 KB) | DOI: 10.30651/ag.v2i2.1196

Abstract

AbstractRusunawa Gununganyar is one of the residential area which is estimated to be the center of new activities in 2019 that impacts the trip attraction and trip generation of traffic around it so it needs to be analyzed traffic performance before and after operation. This study aims to determine the traffic performance of the intersection of Rungkut Madya-Gununganyar Sawah which is one of the main access to the location of Rusunawa Gununganyar on the existing condition in 2017, in 2019 after the rusunawa completed and not operational and in 2024 (5 years after the rusunawa operate). This research was analyzed by using Indonesian Highway Manual Capacity (IHCM). Primary data in this study are daily peak hour traffic and geometric conditions intersection surveys, while secondary data is road network and motor vehicle growth rate. Traffic performance analysis begins by calculating traffic volume at peak hour, intersection capacity, and degree of saturation. The result of traffic performance analysis of intersection shows that the degree saturation (DS) value at the existing condition in 2017 is 0,535, forecast in 2019 is 0,849, while forecast in 2024 at condition five year after Rusunawa Gununganyar operate is 0,861 Keywords: degree of saturation, forecasting, intersection, trip attraction, trip generation   AbstrakRusunawa Gununganyar merupakan salah satu kawasan hunian yang diperkirakan menjadi pusat kegiatan baru di tahun 2019 yang berdampak pada tarikan dan bangkitan lalu lintas disekitarnya sehingga perlu dianalisis kinerja lalu lintas sebelum dan sesudah beroperasi. Penelitian ini bertujuan untuk mengetahui kinerja lalu lintas simpang Rungkut Madya-Gununganyar Sawah yang merupakan salah satu akses utama menuju lokasi Rusunawa Gununganyar pada kondisi eksisting tahun 2017, tahun 2019 setelah rusunawa selesai dibangun dan belum beroperasi, tahun 2024 (5 tahun setelah rusunawa beroperasi). Penelitian ini dianalisis menggunakan Manual Kapasitas Jalan Indonesia (MKJI) 1997. Data primer dalam penelitian ini adalah arus lalu lintas jam puncak dan kondisi geometrik simpang, sedangkan data sekunder adalah jaringan jalan dan tingkat pertumbuhan kendaraan bermotor. Analisis kinerja lalu lintas dimulai dengan menghitung volume lalu lintas pada jam puncak, kapasitas simpang, dan derajat kejenuhan. Hasil analisis kinerja lalu lintas simpang menunjukkan bahwa derajat kejenuhan (DS) pada kondisi eksisting pada tahun 2017 adalah 0,535, perkiraan pada tahun 2019 adalah 0,849, sedangkan perkiraan pada tahun 2024 pada kondisi lima tahun setelah Rusunawa Gununganyar beroperasi adalah 0,861 Kata Kunci: bangkitan perjalanan, derajat kejenuhan, prediksi, simpang, tarikan perjalanan
Pengaruh Bioconc Expired Dalam Kuat Tekan Beton Arifien Nursandah; Faizah Rizki Jannah
AGREGAT Vol 2, No 1 (2017)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (835.31 KB) | DOI: 10.30651/ag.v2i1.616

Abstract

The method used in this research is the method of the Department of Environment (DOE) which is usually referred to the design of the English manner stipulated in SNI 03-2834-2000 namely "Procedure for Making Plans Mixed Concrete Normal". Making concrete mix Bioconc in this study as many as 36 pieces with aged care 7, 14, 21 and 28 days and testing materials in the form slinder 30 x 15 cm with a variation of normal concrete without mix and concrete with the addition of additives Bioconc ie 20% and 30% of the sheer number of cement. Quality of the concrete is planned fc '30 MPa. The results of the study with normal concrete compressive strength of the resulting 24.94 MPa, using additives Bioconc 20% of the compressive strength of the resulting 24.63 MPa, using a 30% Bioconc compressive strength of 19.94 MPa produced using additives as an additive in mixed concrete gives concrete strength decreased from normal concrete mix. It is advisable to pay attention to several factors such as the mix design especially for the concrete mix additives, Cement Water Factor (FAS), material testing, concrete casting and solidification.
VALIDASI GRAFIK DESAIN PROBABILITAS KESTABILAN LERENG MENGGUNAKAN SLIDE 6.0 Dio Alif Hutama
AGREGAT Vol 2, No 1 (2017)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1168.115 KB) | DOI: 10.30651/ag.v2i1.604

Abstract

Slope stability design charts are commonly used to estimate the factor of safety of slope with simple geometry, isotropic, and homogeneous soil properties. However, most of the design charts proposed by previous researchers are only focus on determination of factor of safety that the appreciation of the probability offailure of the slope cannot be made. The paper by Javankhoshdel and Bathurst (2014) is the first that introduced a series of probabilistic slope stability design charts for cohesive-frictional (c-φ) soils. In this paper, the results of probabilistic slope stability analysis using those design charts are compared and validated with theresults obtained from Monte Carlo simulation using Slide 6.0. At the first stage, 42 slope models withvariation of slope angle(α) and mean friction angle(μφ) are built. Then, probabilistic slope stability analysis is conducted using both methods. Two statistical parameters including R-square (R2 ) and standard error (SE) are used to assess the correlation of the results obtained from both methods. Based on the statistical analysis, the following data are obtained:R 2 of mean factor of safety, probability of failure with COVc=COVφ=0.1, and probability of failure with COVc=0.5, COVφ=0.2are 0.9902; 0.9934; 0.9942, respectively. Moreover, SE of mean factor of safety, probability of failure with COVc=COVφ=0,1, and probability of failurewith COVc=0.5, COVφ=0.2are 0.060; 3.789; 3.112, respectively.The results of statistical analysis indicate that the results of probabilistic slope stability analysis using design chart and Slide 6.0 have strong correlation. It also confirms that the probabilistic slope stability design charts proposed by Javankhoshdel and Bathurst (2014) are valid.
MINIMALISASI JUMLAH TIANG DALAM GROUP PILE MELALUI PEMILIHAN BENTUK DASAR PENAMPANG PONDASI TIANG PADA TANAH LEMPUNG Isnaniati Isnaniati
AGREGAT Vol 1, No 2 (2016)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (818.864 KB) | DOI: 10.30651/ag.v1i2.326

Abstract

ABSTRACTHaving very small coefficient of seepage, wide clog, ,soil bearing capacity is very low., create the complexity of clay. The pole foundation is what frequently used in clay. Mostly the hard layer of clay soil is far lying under ground along with the rare use of hexagonal foundation which had widely been circular and rectangular. Minimizing the pole in pile group is one of the alternatives to reduce the construction budget.By comparing the basic shape cross-section of the pole is a circle, square, and hexagon with dimensional variations (0.3; 0.35; 0.4m) and soil data (BH1, BH2, BH3) do research on the number of poles in a pile group based on data from the N-SPT.  Vertical bearing capacity is calculated based on the theory Decourt Luciano (1982)  and the number of poles were studied based on the number nhitung.The results were obtained, with the same dimensions, the number of poles (nhitung) in the group pile, from the least to the most row is the first order form of square cross-section, the second order is a circular shape, and the third is a hexagon.With % nhitung square shape of the circle is 79% and %  nhitung square shape of  the  hexagon  is  93%.Keywords : Coefficient of seepage , soil bearing capacity , SPT , nhitung ABSTRAKTanah lempung merupakan tanah yang sangat bermasalah  karena mempunyai koefisien rembesan yang sangat kecil, kemampumampatannya   besar, dan daya dukung tanah yang sangat rendah. Pondasi tiang merupakan pondasi yang biasanya  digunakan dilapangan dengan  kondisi tanah lempung. Tanah yang dominan lempung   umumnya letak tanah kerasnya berada jauh  dibawah  permukaan tanah, serta langkanya penggunaan bentuk dasar penampang tiang  segienam dilapangan yang selama ini hanya bentuk lingkaran dan persegi  yang banyak digunakan . Meminimalkan jumlah tiang dalam group pile merupakan salah satu alternatif untuk menurunkan anggaran biaya konstruksi bangunan.Dengan cara membandingkan bentuk dasar penampang tiang yaitu lingkaran , persegi , dan segi enam  dengan  variasi dimensi (0,3 ; 0,35; 0,4 m)dan data tanah (BH1, BH2, BH3) dilakukan penelitian  terhadap  jumlah tiang dalam group pile berdasarkan data N-SPT . Daya dukung tanah vertikal dihitung berdasar teori  Luciano Decourt(1982) dan  jumlah tiang yang diteliti berdasar jumlah nhitung.Dari hasil penelitian diperoleh dengan dimensi yang sama maka  jumlah tiang  (nhitung) dalam grup pile dari yang paling sedikit  sampai dengan yang paling banyak  berturut-turut adalah urutan pertama bentuk penampang persegi, urutan kedua adalah bentuk lingkaran, dan urutan ketiga adalah segi enam.  Dengan %  nhitungbentuk persegi terhadap lingkaran adalah 79% dan % nhitung bentuk persegi terhadap segi enam  adalah  93%.Kata kunci : Koefisien rembesan,  daya dukung tanah, SPT, nhitung
Pengaruh Biaya Pekerjaan Dan Waktu Terhadap Struktur Konstruksi Dan Kinerja Proyek Pembetonan Jalan Di Kota Makassar Ahmad AC
AGREGAT Vol 2, No 2 (2017)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (771.375 KB) | DOI: 10.30651/ag.v2i2.1195

Abstract

Abstract    The existing of the road conditions in Makassar City show that some road conditions have been on the asphalt often experience damage, soil pressure decreases, uneven road surface, and no buffer drainage of groundwater absorption. This condition becomes a consideration of the need to do the road concretion. Entrusting the concrete work done so far shows that contractors doing the road repair work have low project performance. This study aims to determine the direct effects of the cost of work and time on construction structures and the performance of the road concreting projects, the direct impact of construction structures and the performance of road concreting projects, also the indirect effect of the cost of work and time through the construction structures on the performance of road concreting projects.The study was conducted in Makassar. Types of data are quantitative and qualitative data. Sources of data in this study consist by primary and secondary data. The population in this research is all road construction worker for Makassar area. The sample was determined by purposive sampling by assigning 321 respondents. Data analysis technique used in this research is descriptive statistical analysis technique and Structural Equation Modeling (SEM) analysis.The result of this study found that the cost of work directly has a positive and significant effect on the construction structure of road concretions. The time directly affects positively and significantly to the construction structure of road concretions. Employment costs directly have a positive and significant impact on the performance of the road concreting project. The time directly affects negatively and insignificantly on the performance of the road concreting project. The structure of the construction directly effects positively and significantly to the performance of the road concreting project. The employment cost indirectly through the construction structure has a positive and significant impact on the performance of the road concreting project. The time indirectly through the structure of the construction has a positive and insignificant effect on the performance of the road concreting project. Keywords: Employment Cost, Time, Construction Structure and Project Performance  AbstrakKondisi jalan yang ada di Kota Makassar dewasa ini memperlihatkan ada beberapa kondisi jalan yang sudah di aspal sering mengalami kerusakan, tekanan tanah yang menurun, permukaan jalan yang tidak merata, dan tidak memiliki drainase penyangga penyerapan air tanah. Kondisi inilah menjadi pertimbangan perlunya melakukan pembetonan jalan. Mempercayakan pekerjaan pembetonan yang dilakukan selama ini memperlihatkan bahwa para kontraktor yang melakukan pekerjaan perbaikan jalan memiliki kinerja proyek yang rendah. Penelitian ini bertujuan untuk mengetahui pengaruh secara langsung biaya pekerjaan dan waktu terhadap struktur konstruksi dan kinerja proyek pembentonan jalan, pengaruh secara langsung struktur konstruksi dan kinerja proyek pembetonan jalan, serta pengaruh tidak langsung biaya pekerjaan dan waktu melalui struktur konstruksi terhadap kinerja proyek pembetonan jalan.Penelitian dilaksanakan di Kota Makassar. Jenis data yaitu kuantitatif dan data kualitatif. Sumber data dalam penelitian ini terdiri dari data primer dan sekunder. Populasi dalam penelitian ini adalah seluruh pekerja pembetonan jalan untuk wilayah Makassar. Penentuan sampel dilakukan secara purposive sampling dengan menetapkan 321 responden. Teknik analisis data yang digunakan dalam penelitian ini adalah teknik analisis statistik deskriptif dan analisis Structural Equation Modeling (SEM).Hasil penelitian menemukan biaya pekerjaan secara langsung berpengaruh positif dan signifikan terhadap struktur konstruksi pembetonan jalan. Waktu secara langsung berpengaruh positif dan signifikan terhadap struktur konstruksi pembetonan jalan. Biaya pekerjaan secara langsung berpengaruh positif dan signifikan terhadap kinerja proyek pembetonan jalan. Waktu secara langsung berpengaruh negatif dan tidak signifikan terhadap kinerja proyek pembetonan jalan. Struktur konstruksi secara langsung berpengaruh positif dan signifikan terhadap kinerja proyek pembetonan jalan. Biaya pekerjaan secara tidak langsung melalui struktur konstruksi berpengaruh positif dan signifikan terhadap kinerja proyek pembetonan jalan. Waktu secara tidak langsung melalui struktur konstruksi berpengaruh positif dan tidak signifikan terhadap kinerja proyek pembetonan jalan.  Kata Kunci: Biaya Pekerjaan, Waktu, Struktur Konstruksi dan Kinerja Proyek
Studi Teknis Kebutuhan Angkutan Antar Jemput Dalam Propinsi Kalimantan Selatan Zainal Abidin
AGREGAT Vol 2, No 1 (2017)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (555.641 KB) | DOI: 10.30651/ag.v2i1.614

Abstract

This study aims to assess the needs of intercity passenger travel demandbetweenSyamsudin Noor Internationl Airport and districts cities in South Kalimantan Privince. Passenger transport in Syamsudin Noor Airport is currently served by Airport CityTaxi, Intercity Taxi and Motor. In general, transport services from and to the airport is still not satisfactory, so that the necessary alternative modes that can fulfill the Syamsudin Noor Airport user expectations.This study using stste preference method results the intercities passenger transport demand thatis possible to organize from Banjarmasin, Banjarbaru and Martapura ranks highest demand number. Other cities such as Pelaihari, Batulicin, Kotabaru and Amuntai occupies the next position. Whilethe other cities despite the relatively smaller amounts of demand but average is still more than 150 people per day. This study results the tariff forBEP rates in accordance with the closest distance to the farthest distance Rp. 20,000, - to Rp. 135.000, -. While passenger survey results forWTP is Rp. 50,000, - to Rp. 150.000, -. So that commercial rates can be considered in accordance with the public willingness to pay.

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