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Yohanes L.D. Adianto

Jurusan Teknik Sipil Fakultas Teknik Universitas Katolik Parahyangan Bandung

Author-ID : 219509

Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Engineering Materials Science & Nanotechnology Transportation

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Analisis Biaya dan Waktu Optimal pada Proyek Ruko Paskal Hypersquare dengan Least Cost Scheduling Adianto, Yohanes L.D.; Maliki, Ali; Prasetyo, Wisnu
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 14, Nomor 1, Edisi XXXIV, PEBRUARI 2006
Publisher : Department of Civil Engineering, Diponegoro University

So many construction projects had been done without optimal project cost and optimal project time completion. Time needed for project completion actually can be shortened with using more economical resources. This paper will try to analyze how to get an optimal project cost and optimal project time completion. This is a case study of Paskal Hypersquare Ruko project which is located at Pasir Kaliki Street, Bandung. Analysis will be done on structural works and wall fixing, both activities will be accelerated using overtime work schedule on critical works. All will be done in accordance with worker's coefficient standard which is set by Dinas Tata Ruang dan Permukiman Jawa Barat for year 2004, and also in accordance with worker's pay standard issued by Jurnal Bahan Bangunan Jawa Barat year 2004 edition. From 21 acceleration alternatives which were analyzed, finally found the most optimal project alternative. With this alternative, the project can be completed in 158 days with a total project cost Rp 31.658.654.555,00. As conclusion, this optimal alternative will save cost as much as Rp 14.831.515,00 and shortened the completion time 7 days earlier. Keywords: least cost scheduling, time, cost, optimal project cost, project accelerationPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3931[How to cite: Adianto, Y.L.D., Maliki, A. dan Prasetyo, W., 2006, Analisis Biaya dan Waktu Optimal pada Proyek Ruko Paskal Hypersquare dengan Least Cost Scheduling, Jurnal Media Komunikasi Teknik Sipil, Volume 14, Nomor 1, pp. 21-29]

Pengaruh Penambahan Serat Nylon terhadap Kinerja Beton Adianto, Yohanes L.D.; Basuki, Tri
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 12, Nomor 2, Edisi XXIX, JULI 2004
Publisher : Department of Civil Engineering, Diponegoro University

Concrete is composite material composed by aggregate and covered by portland cement matrix filled the spaces among particles, which makes a solid material. One of the important properties of concrete is ductility. Low ductility of concrete is presented by stress-strain curve, which has fast decrease of compressive strength in post peak load area, so collapse happen in relatively immediate. Nylon fiber has lower modulus of elasticity than concrete. The using of fiber is expected able to produce concrete more ductile. The objective of this research is to explore the effect of one kind polymeric fiber, nylon, in normal concrete (fcâ€™= 30 MPa). The result shows that there is no significance difference in compressive and flexural strength in concrete with varied nylon fiber content, but there is significance difference in compressive strength among varied age of concrete. There is significance difference in modulus of elasticity of concrete. The modulus of elasticity will increase in line with the decrease of nylon fiber content.Â This research show that higher fibre content added to the concrete, the concrete will show higher strength in cyclic loading.Key words: nylon, fibre, normal concrete, compressive strength, flexural strength, modulus of elasticity.

Identification of Irrigation Performance Indicator using Remote Sensing Roy, Andreas F.V.; Zicco, Zicco; Setiawan, Theresita Herni; Djaja, Jonathan; Eddy, Liyanto; Adianto, Yohanes L.D.
Rekayasa Sipil Vol 12, No 2 (2023)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jrs.2023.v12.i2.02

Irrigation system is one of the important physical infrastructures for achieving the objectives of the Sustainable Development Goals program in 2030. Good performance of the irrigation system will positively contribute to the agricultural sector and improve the farmer welfare. Indonesia has a modern irrigation management unit which is responsible for the operation and maintenance of irrigation in an irrigation area with participatory, needs-based, effective, efficient and sustainable principles that guarantee a better level of service for water-using farmers. Remote sensing technology has the potential to assist in the new assessment process on existing irrigation systems to improve agricultural quality. Therefore this paper aimed to identify irrigation performance indicators that can be measured using remote sensing to help the development and the operation & maintenance of modern irrigation systems in Indonesia become more effective, efficient, and sustainable. The method used the Simplified Surface Energy Balance (SSEBop) model to calculate the actual evapo-transpiration value. The study case was on Balai Besar Wilayah Sungai Cimanuk-Cisanggarung West Java irrigation area produces actual evapo-transpiration values that were described spatially of 1.59 to 5.99 mm per day. Low levels of actual evapo-transpiration indicated that plants lack of water or deficit irrigation. Therefore, the actual evapo-transpiration values can be used to improve service level performance on modern irrigation systems in Indonesia such as water loss, water supply, irrigation water allocation, and water allocation interval.

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