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PERAN PIHAK PROYEKTIF PADA PENGENDALIAN KUALITAS (STRUKTUR BETON) DAN PENCAPAIAN KINERJA PROYEK Edy Gardjito
U Karst Vol 2, No 1 (2018): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (353.228 KB) | DOI: 10.30737/ukarst.v2i1.140

Abstract

For the data processing process the researcher use help the method ofStepwise Regression Test and Hypothesis Test.The result of this research is very positive influence of concrete quality control factors and the role of project related party influence to the achievement of construction project performance, that is proved by stepwise regression test and hypothesis test where Quality performance (Fi = 21,758> Ft = 2,060), Time performance (Fi = 14,950> Ft = 4,496), Cost performance (Fi = 15,379> Ft = 4,496).For Quality performance is shown: coefficient of determination or R square = 0,876, influencing variable is implementation aspect (x1), and aspects of human resources (x2), with Y1 = 0,285 + 0,148.x1 + 0,071.x2. Related to Time performance: coefficient of determination or R square = 0.537, the variable that influences is monitoring times chedule (x1), with Y2 = 2,166 + 0,415.x1. Related to Cost performance: coefficient of determination or R square = 0.481, the influencing variable is the acceleration of implementation (x1), with Y3 = -0.741 + 0.958.x1. So If the project organizers feel that these variables have been ful filled,then the performance of the resulting construction project will be better too. Keywords: Concrete Quality Control, Quality Performance, Time Performance, Cost Performance, Construction Project Performance. Untuk proses pengolahan data peneliti menggunakan bantuan metode Uji Regresi Bertahap dan Uji Hipotesis. Hasil penelitian ini sangat berpengaruh positif terhadap faktor kontrol kualitas beton dan peran pihak terkait proyek terhadap pencapaian kinerja proyek konstruksi, yaitu dibuktikan dengan uji regresi bertahap dan uji hipotesis di mana Kinerja kualitas (Fi = 21.758> Ft = 2.060), Kinerja waktu (Fi = 14.950> Ft = 4.496), Kinerja biaya (Fi = 15.379> Ft = 4.496) .Untuk kinerja yang berkualitas ditampilkan : koefisien determinasi atau R square = 0,876, variabel yang berpengaruh adalah aspek implementasi (x1), dan aspek sumber daya manusia (x2), dengan Y1 = 0,285 + 0,148.x1 + 0,071.x2. Terkait dengan kinerja waktu: koefisien determinasi atau R square = 0,537, variabel yang mempengaruhi adalah waktu pemantauan chedule (x1), dengan Y2 = 2,166 + 0,415.x1. Terkait dengan kinerja Biaya: koefisien determinasi atau R square = 0,481, variabel yang mempengaruhi adalah percepatan implementasi (x1), dengan Y3 = -0,741 + 0,958.x1. Jadi, jika penyelenggara proyek merasa bahwa variabel-variabel ini telah dipenuhi, maka kinerja proyek konstruksi yang dihasilkan akan lebih baik juga. Kata Kunci: Kontrol Kualitas Beton, Kinerja Kualitas, Kinerja Waktu, Kinerja Biaya, Kinerja Proyek Konstruksi.
PENGARUH PENAMBAHAN BATU KARANG SEBAGAI SUBSTITUSI AGREGAT HALUS DALAMPEMBUATAN PAVING BLOCK Edy Gardjito; Agata Iwan Candra; Yosef Cahyo
U Karst Vol 2, No 1 (2018): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.89 KB) | DOI: 10.30737/ukarst.v2i1.374

Abstract

                                                             Material exploitation, especially the use of sand as the main component of concrete, needs  to  be  reduced. The  purpose  of  this  research  is to find  out  the  value of  compressive strength   from   the addition of rocks to achieve compressive strength according to the standard mix  design  of  paving  blocks. This  research  was  conducted  at  the University's Civil Engineering Laboratory. Attending a trial and error method, the samples tested were cube with a size of 15 x 15 x 15 cm with 3 pieces with the quality of paving planned and K-225 or 18.675  MPa. The  method  of  making specimens  includes  semi-mechanics  using  a concrete mixer. Fractional waste The rock is crushed into small pieces and then put in messin abrassion to get smaller pieces of rock and become grains of sand. Test result obtained a percentage of 25% indicating a compressive strength of 22.1 MPa, 20.3 MPa, 19.9MPa, and has an average value   of 21.8   MPa. Then   the   results from the   substitution experience i increase   against compressive strength. Keywords: Coral, Fine Aggregate, Compressive Strength.  Eksploitasi material, terutama penggunaan pasir sebagai komponen utama beton, perlu dikurangi. Tujuan dari penelitian ini adalah untuk mengetahui nilai kekuatan tekan dari penambahan batuan untuk mencapai kekuatan tekan sesuai dengan desain campuran standar balok paving. Penelitian ini dilakukan di Laboratorium Teknik Sipil Universitas. Menghadiri metode coba-coba, sampel yang diuji adalah kubus dengan ukuran 15 x 15 x 15 cm dengan 3 buah dengan kualitas paving yang direncanakan dan K-225 atau 18,675 MPa. Metode pembuatan spesimen termasuk semi-mekanika menggunakan mixer beton. Limbah pecahan Batuan dihancurkan menjadi potongan-potongan kecil dan kemudian dimasukkan ke dalam abrasi untuk mendapatkan potongan batu yang lebih kecil dan menjadi butiran pasir. Hasil pengujian diperoleh persentase 25% yang menunjukkan kekuatan tekan 22,1 MPa, 20,3 MPa, 19,9MPa, dan memiliki nilai rata-rata 21,8 MPa. Kemudian hasil dari pengalaman substitusi saya meningkat terhadap kekuatan tekan Kata Kunci
PENGENDALIAN MUTU BETON DENGAN METODE CONTROL CHART (SPC) DAN PROCESS CAPABILITY (SIX-SIGMA) PADA PEKERJAAN KONSTRUKSI Edy Gardjito
U Karst Vol 1, No 2 (2017): NOVEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (448.174 KB) | DOI: 10.30737/u karst.v1i2.77

Abstract

Hasil penelitian terhadap pengendalian mutu beton K 250 : (a) dengan grafik kendali (control chart), grafik Individual (): batas atas UCL = 289 kg/cm2 , batas tengah  = 263 kg/cm2 , batas bawah LCL = 238 kg/cm2, mendeteksi 1 sampel diluar kendali dibawah batas LCL yaitu sampel nomor test 142, grafik Xbar-R dan Xbar-S chart : mendeteksi 2 sampel diatas garis UCL yaitu sampel nomor test 26; 118, grafik I-MR chart : mendeteksi 3 sampel diatas garis UCL yaitu sampel nomor test 26; 118; 235. (b) dengan grafik kapabilitas proses,nilai Cp= 0,93, Cpk= 0,81, dan Cpm= 0,81,(Cp, Cpk, Cpm<1) maka proses produksi memiliki kapabilitas kurang cukup mampu menghasilkan mutu yang diharapkan, nilai PPM > < 1) maka proses produksi memiliki kapabilitias kurang cukup mampu menghasilkan mutu yang diharapkan, nilai PPM < LSL terdapat 876,78 (10,21%) sampel kurang dari standard mutu yang diharapkan (USL–LSL) =55kg/cm2 proses memiliki kapabilitas hampir tidak cukup. Nilai-Z (transformasi Z) terdapat 90,65% berada >250 kg/cm2 . Probability of defect 0,83%= 0,0083 < 0,05 atau 5%, memenuhi standart kinerja mutu yang diharapkan meskipun proses produksi memiliki kapabilitas hampir tidak cukup.
Meningkatkan Daya Dukung Tiang Pondasi Minipile Persegi Pada Gedung Kantor Ngasem Kabupaten Kediri Menggunakan Metode Mayerhoff Erwin Dwi Laksana; Edy Gardjito; Suwarno Suwarno; Faiz Muhammad Azhari; Imam Mustofa
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 2 (2021): OCTOBER
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2414.399 KB) | DOI: 10.30737/jurmateks.v4i2.1999

Abstract

The foundation is one part under the building that has a very important role. The choice of the type of foundation is something that needs to be considered. One type of foundation that is widely used is the minipile foundation. Minipile foundation itself is a type of foundation that is used if the load received from the superstructure is not too heavy and the hard soil type is at a depth of between 5-10m. The purpose of this study was to plan the bearing capacity of the minipile foundation pile in the PT. BPJE in Ngasem, Kediri Regency. The building is planned to be used as an office building. The planned sub-building includes foundation planning with a mini-square building with a cross-sectional dimension of 20x20. The calculations carried out include the calculation of the bearing capacity of the foundation using the Mayerhoff method, the calculation of the flexural factor and the calculation of reinforcement. The calculation results (sigma Vertical Ultimate) Vu = 114.78 tons. With bending factor tk = 286.95 kg /. The reinforcement in the pile cap for the x direction of tensile reinforcement = D16–170 and compression reinforcement = D16–250 while for tensile reinforcement in the y direction = D16 - 170 and compressive reinforcement = D10 - 250. Thus, the results of the planning can be used as a reference for the implementation of building construction. office of PT. BPJE in Ngasem, Kediri Regency.
Meningkatkan Daya Dukung Tanah dengan Pondasi Mini Pile Pada Gedung PT. Maju Jaya Kecamatan Ngasem, Kab Kediri Enggar Triatma Pamungkas; Edy Gardjito; Sigit Winarto; Faiz Muhammad Azhari
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 1 (2021): JUNE
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2786.219 KB) | DOI: 10.30737/jurmateks.v4i1.1643

Abstract

Foundation is a lower structure that serves to withstand the load of the upper structure. One type of foundation inside is mini pile foundation. Mini pile foundation is widely used in construction with light to heavy loads. This study aims to plan the foundation of mini pile with carrying capacity and dimensions of the stake that is safe for the PT building's lower structure. MAJU JAYA, which will be used as an office. Based on the data of sondir test results obtained from the field on the building project's construction, the stake's foundation will be planned using the mayerhoff method. This plan obtained the results of axial load (sigma Vertical Ultimate) Ʃvu of 145.56, the carrying capacity of a single pole of 31.17 tons, and the group's carrying capacity pole of 173.84 tons. This result will be planned the foundation of mini pile with dimensions of 20x20 with a depth of 8 meters a number of 8 poles.
Menentukan Desain Struktur Atas Gedung Fajar Biru Trenggalek Berdasarkan SNI (Standart Nasional Indonesia) Alfin Dino Saputra; Edy Gardjito; Sigit Winarto; Muhammad Heri Nastotok; Faiz Muhammad Azhari
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 2 (2021): OCTOBER
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2295.483 KB) | DOI: 10.30737/jurmateks.v4i2.2002

Abstract

A multi-storey reinforced concrete building is very prone to collapse. Therefore, proper structural planning is needed in order to qualify the strength and security of the structure. Fajar Biru Building is a building that will be built in Karangsuko village of Trenggalek Regency, East Java. The building functioned as a cost with a building area of 340 m2, and has a total of 4 floors. The method used is the SRPMM (Medium Moment Musician Frame System) method which refers to SNI 1726:2012, and SNI 2847:2013. Planning includes the calculation of beams, floor plates, and columns. From the results of the calculations that have been done. on the floor plate structure with a plate thickness of 120 mm, Ø12 tree bones are used with a distance of 100 mm for pedestals and 150 mm for field areas. On the looping of B1 beams with dimensions of 300x350 mm used 6-D16 tree bones for focus and 4-D16 for field areas with Ø10-70 mm for focus and Ø10-140 mm for field areas. For the repeating of Column K1 with dimensions of 300x600 mm used 10-D16 principal bones with a Ø10-70 mm dimension. So that from these results can be used as a reference in the implementation of the construction of the blue dawn building.
Meningkatkan Kapasitas Daya Tampung Drainase dengan Penggunaan Beton U-ditch pada Daerah Banjir Sidokare Dan Kawasan Kumuh Lemahputro Kota Sidoarjo Renggar Ma&#039;aris; Edy Gardjito; Yosef Cahyo Setianto Poernomo; Ashabul Yamin; Fitry Rahmawaty
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 1 (2021): JUNE
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2638.199 KB) | DOI: 10.30737/jurmateks.v4i1.1743

Abstract

The slums in Sidoarjo city are caused by people who ignore the cleanliness of the environment. The number of people who dispose of waste, household waste, or production waste in the channel causes the reduced function of drainage channels. This study aims to determine the capacity of existing channels in the flood area of Sidokare and Lemahputro slum, Sidoarjo. The method used uses a quantitative descriptive method—hydrological data obtained from rainfall recording stations for ten years. The data was then analyzed using rational methods to calculate the discharge of flood plans when resetting the 10-yearly. The hydrology and hydraulic analysis calculation results obtained plan discharge (Qr) of 0.092 m3/s and existing discharge (Qs) of 0.032 m3/s. These results showed the existing channel condition could not accommodate the discharge of rainwater runoff, so there needs to be redimence of the channel. From the analysis of the dimensions of drainage channels conducted, obtained a new channel in the form of Box U-Ditch with a channel depth (h) 0.50 width under the channel (b) 0.40 m, with channel discharge plan that 0.128 m3/s can accommodate.
Meningkatkan Kuat Tekan Beton Fc’ 16,60 Mpa menggunakan Fly Ash dan Arang Batok Kelapa Yusril Iza Mahendra; Edy Gardjito; Ahmad Ridwan; Haris Wicaksono
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 1 (2021): JUNE
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2694.719 KB) | DOI: 10.30737/jurmateks.v4i1.1641

Abstract

The science of concrete in the present era has developed. Research on efforts to improve the properties and performance of concrete has been carried out a lot. One of them is modifying a concrete mixture with fly ash as a substitute for some cement and coconut shell charcoal as a substitute for some sand. The chemical properties contained in fly ash are 80% in the form of silica and alumina. The purpose of this study was to determine the slump value and the compressive strength value of the test object added with fly ash with variations of 3%, 6%, 9% of the weight of cement, and 3% baroque coconut charcoal by weight of sand. This research method is experimental, which refers to the Indonesian National Standard with a test object cylinder size 15x30 cm totaling 12 samples tested at the age of 28 days with a quality plan fc'16.60 Mpa. The results showed that the highest slump value was obtained in the test object variation 3, namely 7 cm, while the average compressive strength of each variation has exceeded the quality of the plan with the highest value obtained in variation 2 with a compressive strength value of Fc'24.9 Mpa. 
Desain Struktur Atas Gedung Rawat Inap 3 Lantai RSUD Nganjuk Menggunakan Standart Nasional Indonesia (SNI) Ines Indria Wati; Edy Gardjito; Sigit Winarto; Muhammad Heri Nastotok; Imam Mustofa
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 2 (2021): OCTOBER
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2678.361 KB) | DOI: 10.30737/jurmateks.v4i2.2067

Abstract

The hospital building is one of the building facilities that is developed continuously. The building was built as an effort to fulfill health facilities. In its construction, the hospital building must be properly planned so that it is safe to use. Planning includes the design and calculation of structural details. Several hospitals in the Nganjuk area added building units to meet the needs of the community, one of which was the Nganjuk Hospital which added a building to support services. Planning a multi-storey building is a solution because it will be able to accommodate many patients. This plan aims to plan the structure of the Nganjuk Regional General Hospital Building. The planning carried out includes the calculation of structural dimensions, calculation of loading, and calculation of reinforcement which were analyzed using SAP2000 software. The calculation results show that the dimensions of the columns used are 40/40 and 15/15 for practical columns, the dimensions of the beams are 35/50 and 30/40 and 25/35. Reinforcement on beams obtained diameters of 16 and 10 mm, reinforcement on columns obtained diameters of 19 and 10 mm, while on plates obtained diameters of 10 mm. Thus, these results can be used as a reference in the implementation of the construction of the Nganjuk Regional General Hospital Building.
Meningkatkan Kemampuan Struktur Jembatan dengan Sistem Girder Pelat Baja pada Jembatan Golo, Tumpakoyot Blitar Muhammad Yusuf Ansori; Edy Gardjito; Sigit Winarto; Fajar Romadhon; Haris Wicaksono
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 1 (2021): JUNE
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2538.143 KB) | DOI: 10.30737/jurmateks.v4i1.1693

Abstract

The bridge becomes a vital building in living today, which is connecting two areas that separated land. The Golo Bridge also connects the two regions, Blitar and Tulungagung. The Golo Bridge in Tumpakoyot Blitar is part of a national project to build alternative and fast routes in the Southern Java alternative route. The existing Golo bridge is a bridge with a PC-I Girder structure 40 m long and 11 m wide. This research aims tore-plan or modify it to become a bridge with a steel plate girder structure by dividing it into 2 spans, collecting the existing data to be processed in the analysis calculation. It's started with determining the dimensions of the initial structure, giving loads, controlling the structure's ability, also for the abutment & pier. The calculation shows that the dimensions of the steel plate girder have a profile of 2500. 700. 14. 40 mm. Meanwhile, the abutment has a total height of 5.70 m, a width of 4.50 m, and 9.50 m. The bridge pillars have a total height of 6.20 m, a width of 6.20 m and a length of 9.50 m. These results show that the structures is able to support the working loads.