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All Journal Prokons: Jurnal Teknik Sipil JPLED Journal of Civil Engineering and Vocational Education Jurnal Online Skripsi Manajemen Rekayasa Konstruksi (JOS-MRK)
Rahardianto, Trias
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Transportation Other

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The Use Of Gis In Estimating Rain Fall Erosivity Factor Of Onkaparinga Watershed- South Australia Trias Rahardianto
Prokons: Jurnal Teknik Sipil Vol. 7 No. 1 February 2013
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v7i1.40

Abstract

The study is aimed at the examination of spatial distribution of rainfall to produce rainfall erosivity map in Onkaparinga watershed, utilising Geographic Information System (GIS). Rainfall data was obtained from rainfall stations in and around the watershed as monthly precipitation data. Ordinary least square (OLS) method implemented to observe the relationship between rainfall erosivity as dependent variable, and both of rainfall and elevation as the explanatory variable. To create the continous surface of the site specific monthly and annual average precipitation data, the universal kriging interpolattion was implemented. The regression model shows that 96% of the predicted R factor value matches the observed R factor value. The result of this study is characterised the rainfall on the watershed as high temporal variability.Keywords: GIS, DEM, Universal kriging, OLS, Rainfall erosivity 
INVESTIGASI KERUNTUHAN SEBAGIAN STRUKTUR BETON LANTAI 2 PADA PROYEK PEMBANGUNAN DAN REHABILITASI PASAR X Trias Rahardianto, Suhariyanto
Prokons: Jurnal Teknik Sipil Vol. 8 No. 1 February 2014
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v8i1.56

Abstract

Partial collapse of Concrete Structure at 2nd Floor of the Development and Rehabilitation Project Market X, occurred during heavy rain and strong winds conditions. Reconstructively, the collapse of second floor area confined by D, G, 5 and 9 lines, are indicated as the result of domino effect of the collapse preceded by the collapse of the beam midspan along the line of F7-F8. Some factors suspected as the cause of the collapse; the weakness of the composite action of concrete and its reinforcement, and the lack of reinforcement detailing implemented at most structural elements. Action plan that needed be done is temporer retrofitting, demolitioning and cleaning up the wastes. reworking on collapsed structure,  repairing and reinforcing some poor structural elements. In addition, the adequacy of concrete cover depth is also need attention, due to the location of the X market which is in the corrosive environment, therefore a guarantee of preventing steel reinforcement from corrosion is required  for it will greatly affect to the strength of concrete structures.Keywords: concrete structure, Reconstructive, domino effect, composite action, detailing
Integrasi Building Information Modeling (BIM) terhadap Kesiapan Lulusan Teknik Sipil Menghadapi Transformasi Digital di Industri Konstruksi Setiyono; Rahardianto, Trias
Journal of Practice Learning and Educational Development Vol. 4 No. 4 (2024): Journal of Practice Learning and Educational Development (JPLED)
Publisher : Global Action and Education for Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58737/jpled.v4i4.36

Abstract

The development of digital technology has transformed the landscape of the construction industry, and one of the most important innovations in recent years is the implementation of Building Information Modeling (BIM). BIM provides solutions to enhance efficiency in the design, construction, and management of construction projects. This research explores the impact of integrating BIM into the civil engineering curriculum on students' readiness to face the challenges of an increasingly digitized construction industry. Through a quantitative and qualitative approach, this research uses pre-test and post-test to measure changes in students' competencies in using BIM after participating in the training. Three groups of civil engineering students were tested to measure their level of understanding before and after the BIM training. The research results show a significantincrease in post-test scores compared to pre-test scores in all three groups, with an average improvement of 24.7%. These results indicate that the integration of BIM in education can be effective in enhancing students' professional readiness and bridgingthe gap between academic theory and the practical demands of the modern construction industry. This study suggests that BIM should be more widely integrated into the civil engineering curriculum to prepare graduates who are ready to compete in the era of construction industry digitalization.
ANALISA KUAT TEKAN DAN ABSORPSI BETON DENGAN ZEOLIT SEBAGAI BAHAN TAMBAH Rahmadiani, Alfina; Qomariah, Qomariah; Rahardianto, Trias
Jurnal Online Skripsi Manajemen Rekayasa Konstruksi (JOS-MRK) Vol. 5 No. 4 (2024): EDISI DESEMBER
Publisher : Jurusan Teknik Sipil Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jos-mrk.v5i4.5757

Abstract

Beton telah menjadi bahan utama yang digunakan dalam konstruksi bangunan. Beton dikenal dengan kekuatan dan daya tahannya namun, ada beberapa kekurangan yang perlu diatasi.Banyak pelaku konstruksi mencari inovasi baru yang dapat meminimalisir kekurangan beton dan mampu meningkatkan kualitas beton.Salah satu cara untuk meningkatkan kualitas beton adalah dengan menggunakan mineral aditif yang dapat meningkatkan kualitasnya secara keseluruhan.Zeolit merupakan bahan tambahan yang menjanjikan dan memiliki potensi besar untuk meningkatkan kualitas beton. Penelitian ini bertujuan untuk mengetahui peningkatan kuat tekan beton melalui penambahan serbuk zeolit. Penelitian ini menggunakan metode eksperimental yang melibatkan benda uji berbentuk silinder dengan diameter dan tinggi 15 cm dan 30 cm. Zeolit digunakan sebagai bahan tambah serbuk zeolit 0% sebagai beton kontrol dan beton dengan penambahan serbuk zeolit 6%, 12%, 18%, dari berat semen.Benda uji tersebut akan di uji pada umur 7 hari, 14 hari, dna 28 hari serta menggunakan 6 benda uji pada masing-masing umur untuk mendapatkan hasil kuat tekan beton. Absorpsi akan di uji pada benda uji umur 7 hari dan 28 hari dengan menggunakan 3 benda uji padamasing-masing umur. Hasil penelitian menunjukkan bahwa bubuk zeolit dapat meningkatkan kekuatan tekan beton. Penambahan 12% zeolit pada umur 28 hari mencapai kekuatan 36,76 Mpa. Sebagai perbandingan, beton normal mencapai kekuatan 32,02 Mpa, sedangkan variasi 6% zeolit mencapai 35,37 Mpa. Namun, pada zeolit dengan kandungan 18% mengalami penurunan menjadi 28,78 Mpa. Dari hasil pengujian kuat tekan dan serapan, dapat disimpulkan bahwa tingkat kuat tekan beton yang optimum dengan zeolit sebagai bahan tambah adalah pada variasi beton zeolit 12%. Sedangkan pada absorpsi atau daya serap, pada penambahan zeolit variasi 18% mengalami penyerapan paling rendah yaitu sebesar 2,19%, sedangkan untuk variasi 0% sebesar 3,58%, untuk variasi 6% mencapai 2,43% lalu untuk variasi 12% mencapai 3,30%.
ANALISIS STABILITAS LERENG MENGGUNAKAN GEOTEXTILE DAN DINDING PENAHAN TANAH KANTILEVER PADA JEMBATAN CIPULARANG KM 71 Salwa, Shabila Nula; Anggraini, Novita; Rahardianto, Trias
Jurnal Online Skripsi Manajemen Rekayasa Konstruksi (JOS-MRK) Vol. 5 No. 4 (2024): EDISI DESEMBER
Publisher : Jurusan Teknik Sipil Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jos-mrk.v5i4.5795

Abstract

Proyek Jembatan di Tol Cipularang KM 71 di Kabupaten Purwakarta terletak di area perbukitan curam dengan tanah ekspansif yang rentan terhadap perubahan volume signifikan saat terkena air, membuat wilayah tersebut rawan longsor. Untuk mengatasi masalah ini, diperlukan solusi alternatif perkuatan lereng diantaranya penggunaan geotextile dan dinding penahan tanah kantilever. metode Fellenius diimplementasikan untuk menganalisis stabilitas pada kondisi lereng eksisting, dengan perkuatan geotextile dan dinding penahan tanah kantilever. Perhitungan menggunakan metode manual maupun dengan Software Geoslope. Analisis stabilitas lereng dengan perkuatan geotextile mencakup analisis stabilitas internal (putus dan cabut) dan eksternal (geser, guling, dan daya dukung), sedangkan, pada dinding penahan tanah kantilever, meliputi analisis stabilitas terhadap geser, guling, dan daya dukung. Hasil analisis stabilitas lereng kondisi eksisting menggunakan metode perhitungan manual memberikan nilai faktor keamanan tanpa beban gempa dan dengan beban gempa berturut-turut sebesar 1,389 dan 0,568, sedangkan pada penggunaan Software Geoslope berturut-turut sebesar 1,322 dan 0,607. Perhitungan perkuatan lereng dengan geotextile dengan metode perhitungan manual nilai faktor keamanan kondisi tanpa dan dengan beban gempa berturut-turut sebesar 2,447 dan 1,627, dan dengan implementasi Software Geoslope diperoleh berturut-turut sebesar 3,672 dan 1,689. Pada perkuatan lereng menggunakan dinding penahan tanah, metode perhitungan manual nilai faktor keamanan kondisi tanpa dan dengan beban gempa berturut-turut sebesar 2,870 dan 1,612 , sedangkan dari software Geoslope berturut-turut dihasilkan nilai faktor keamanan sebesar 3,283 dan 1,579.
ANALISIS DESAIN FONDASI BORED PILE PADA PROYEK JALAN TOL PROBOLINGGO-BANYUWANGI PAKET 1 Maulidiyah, Yunia; Sholeh, Moch.; Rahardianto, Trias
Jurnal Online Skripsi Manajemen Rekayasa Konstruksi (JOS-MRK) Vol. 5 No. 4 (2024): EDISI DESEMBER
Publisher : Jurusan Teknik Sipil Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jos-mrk.v5i4.5868

Abstract

Overpass SS Kraksaan pada Proyek Pembangunan Jalan tol Probolinggo – Banyuwangi Paket 1 di Kecamatan Kraksaan Kabupaten Probolinggo ada dalam kategori proyek strategis nasional. Bagian abutment overpass SS Kraksaan memiliki panjang bentang 20,60 m menggunakan struktur fondasi tiang bor berdiameter 0,8 m dengan kedalaman 28 m. Berbagai literatur telah membahas tentang penggunaan tiang bor pada abutment, namun pembahasan tentang pemilihan diameter optimal fondasi tiang bor yang spesifik untuk kondisi dan karakteristik geoteknik di lokasi pembangunan overpass SS Kraksaan ini belum dijumpai. Penelitian ini menganalisis alternatif penggunaan bored pile pada abutment overpass SS Kraksaan dengan variasi diameter 0,6 m, 0,8 m, dan 1 m pada kedalaman 25 m dan 28 m. Perhitungan pembebanan struktur atas bangunan mengacu pada SNI 1725- 2016 dan dianalisa menggunakan software STAAD.Pro CONNECT Edition V22, dengan memperhitungkan beban gempa yang mengacu pada SNI 2833-2016. Perhitungan daya dukung fondasi menggunakan data pengujian SPT (Standard Penetration Test). Perhitungan rencana anggaran biaya menggunakan analisa harga satuan pekerjaan Kota Probolinggo 2023. Hasil analisa menunjukkan bahwa fondasi dengan diameter 0,8 m dan kedalaman 28 m lebih efisien dan efektif dibandingkan alternatif diameter dan kedalaman lain yang ditinjau. Nilai daya dukung kelompok tiang fondasi tersebut adalah 109.318,91 kN dengan jumlah 14 buah tiang dan nilai penurunan kelompok tiang 0,047 cm. Tulangan utama fondasi menggunakan 19D25 dan tulangan geser Ø13-200 mm. Rencana anggaran biaya untuk fondasi tiang bored pile dan pile cap sebesar Rp 3.397.087.761,14.
ALTERNATIVE SHEAR WALL DESIGN ON POLINEMA AC BUILDING STRUCTURE Rohman, Ikbarur; Rahardianto, Trias; Lestari, Agustin Dita Lestari
Jurnal Online Skripsi Manajemen Rekayasa Konstruksi (JOS-MRK) Vol. 6 No. 1 (2025): EDISI MARET
Publisher : Jurusan Teknik Sipil Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jos-mrk.v6i1.5891

Abstract

Shear walls in high-rise buildings enhance resistance against lateral loads. This study compares the performance of four differentshear wall configurations in an eight-stories building designed with a dual structural system using the Response Spectrummethod, including structural period, shear force, story drift, and cost. Four shear wall configurations are planned: (1) ExistingCondition with Core Wall shear walls on the right and left sides (SW0); (2) Frame Wall in an L shape around the lift and stairs(SW1); (3) Two L shapes around the lift and stairs and two I shapes on the facade (SW2); and (4) I shapes around the lift, stairs,and facade (SW3). Simulations were conducted using ETABS, considering dead loads, live loads, and earthquake loads. Costestimate for shear walls of each alternative. Based on Structural Performance analysis Shear wall alternatives 2 (SW2) performsbest compared to others models. Based on the Cost Comparison SW0 is the cheapest among other configurations, however,from the structural performance perspective, SW2 & SW3 perform much better than those in SW0.
ANALYSIS OF STRAIN AND DEFLECTION IN CONCRETE WITH ZEOLITE AS CEMENT SUBSTITUTION USING DIC METHOD sofi, Sofiyah; Rahardianto, Trias; Raharjo, Bobby Asukmajaya
Jurnal Online Skripsi Manajemen Rekayasa Konstruksi (JOS-MRK) Vol. 6 No. 1 (2025): EDISI MARET
Publisher : Jurusan Teknik Sipil Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jos-mrk.v6i1.6040

Abstract

Concrete is one of the most chosen materials in the construction world due to its exceptional properties, such as high compressive strength, fire resistance, and weather resistance. One natural material that can be used as an additive or substitute in concrete to improve, maintain, or even enhance the existing strength of concrete mixtures is zeolite. Adding zeolite to the mixture is expected to minimize strain and deflection compared to the normal concrete. The examination of the mechanical properties of concrete material is crucial to ensure that the material can be used. Several existing concrete material testing methods and equipments require relatively high investment costs. The application of the Digital Image Correlation (DIC) method offers a comprehensive alternative that can replace the expensive traditional strain gauge. This method uses a digital camera and Zeiss Inspect Correlate software. This study aims to determine the effect of zeolite application in concrete as a cement substitute on concrete strain and deflection implementing the DIC method. The results showed that concrete with zeolite substitution has a compressive strength of 25.02 MPa and a flexural strength of 4.13 MPa, which are lower than the compressive and flexural strengths of concrete without zeolite substitution, which are 29.10 MPa and 6.88 MPa, respectively. Additionally, the strain and deflection values obtained from concrete with zeolite substitution are 0.0042 and 1.690 mm, respectively, which are higher than the strain and deflection of concrete without substitution, which are 0.0033 and 1.253 mm, respectively. Therefore, it can be concluded that the addition of zeolite as a cement substitute cannot minimize strain and deflection in concrete and the results of the analysis using the DIC method show a high level of accuracy, proven to be significantly correlated with the measurement results of the instruments.
ANALISIS DAYA DUKUNG PONDASI TIANG PANCANG MENGGUNAKAN PLAXIS 2D (Studi Kasus: Pembangunan Flyover JPL 79 KM 43+376) Putri, Maulidiya Meisya; Novianto, Dandung; Rahardianto, Trias
Jurnal Online Skripsi Manajemen Rekayasa Konstruksi (JOS-MRK) Vol. 6 No. 1 (2025): EDISI MARET
Publisher : Jurusan Teknik Sipil Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jos-mrk.v6i1.6124

Abstract

Penelitian ini berfokus pada analisis daya dukung pondasi tiang pancang beton pracetak dalam pembangunan Flyover JPL 79 KM 43+376. Pondasi merupakan elemen struktural penting yang bertanggung jawab untuk mentransfer beban dari struktur atas ke tanah. Proyek ini menggunakan tiang pancang beton pracetak yang cocok untuk tanah berpasir dengan daya dukung rendah. Simulasi menggunakan perangkat lunak SAP2000 untuk flyover dengan panjang bentang 30,16 meter dan lebar 13 meter menunjukkan beban vertikal sebesar 3.920,70 ton. Daya dukung dihitung berdasarkan data N-SPT pada titik DB.05. Konfigurasi pondasi yang optimal terdiri dari kelompok 8 tiang pancang dengan diameter 0,6 meter dan panjang masing-masing 24 meter. Menurut metode Meyerhoff, kapasitas tiang yang dihitung mencapai 3.936,17 ton, melebihi beban aksial yang diterima ( ≥ ). Penurunan kelompok tiang, yang dihitung menggunakan metode Vesic, adalah sebesar 0,037 meter, sementara analisis Plaxis 2D menunjukkan penurunan sebesar 0,0328 meter. Baik perhitungan manual maupun analisis Plaxis 2D menunjukkan bahwa penurunan ini tidak melebihi batas yang diizinkan yaitu 0,06 meter ( ≤ ). Pekerjaan pondasi dilakukan menggunakan excavator, dump truck, truk trailer, crane servis, mesin pancang hydraulick jack-in, dan alat pemotong tiang. Rencana Anggaran Biaya (RAB) untuk pekerjaan pondasi tiang pancang berdiameter 0,6 meter ini, berdasarkan Analisis Harga Satuan Pekerjaan (AHSP) Kabupaten Sidoarjo tahun 2022, mencapai total Rp 94.927.363.
Assessing the Correlation between Camera Angle and the Accuracy of Elevation Measurements Derived from UAV-Photogrammetry: - Susilo, Helik; Novianto, Dandung; Rahardianto, Trias; Cupasindi, Dyah Ayu Rahmawati; Subkhan, Muhamad Fajar; Supiyono; Asema, Fuji
CIVED Vol. 12 No. 1 (2025): March 2025
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v12i1.750

Abstract

Elevation measurement is essential for various applications, including construction engineering, monitoring land subsidence, maintaining infrastructure, etc. A conventional method for elevation measurement involves terrestrial surveying using a Total Station instrument. However, this method can be time-consuming and requires a considerable number of personnel. Unmanned Aerial Vehicle (UAV) photogrammetry method offers a more efficient solution for determining elevation. This method utilizes UAVs equipped with camera sensors to capture aerial photos. In this research, aerial photos were taken using three different camera angle configurations: nadir (90°), oblique (65°), and oblique (45°). The elevation points derived from the UAV photogrammetry data were compared with the elevation measured by the Total Station. The analysis showed that the nadir (90°) camera angle configuration had the lowest Root Mean Square Error (RMSE) at 0.0471 meters, followed by the oblique (65°) configuration with RMSE of 0.0508 meters, and the obliqu (45°) configuration with RMSE of 0.1399 meters. According to the t-test, the elevations derived using the UAV photogrammetry method were not significantly different from the elevations measured with the Total Station.
Co-Authors Asema, Fuji Cupasindi, Dyah Ayu Rahmawati Dandung Novianto Helik Susilo Lestari, Agustin Dita Lestari Maulidiyah, Yunia Moch. Sholeh, Moch. Novita Anggraini Putri, Maulidiya Meisya Qomariah Qomariah Raharjo, Bobby Asukmajaya Rahmadiani, Alfina Rohman, Ikbarur Salwa, Shabila Nula setiyono sofi, Sofiyah SUBKHAN, MUHAMAD FAJAR Supiyono .