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Kab. sleman,
Daerah istimewa yogyakarta
INDONESIA
Inersia : Jurnal Teknik Sipil dan Arsitektur
ISSN : 0216762X     EISSN : 2528388X     DOI : -
Core Subject : Engineering,
INERSIA is stand for INformasi dan Ekspose hasil Riset Teknik SIpil dan Arsitektur. This scientific journal is managed by the Department of Civil Engineering and Planning Education, Faculty of Engineering, Yogyakarta State University, in cooperation with the Persatuan Insinyur Indonesia (PII). It publishes and disseminates research results from lecturers and post graduate students from various universities in Indonesia, which has contributed to the development of science and technology, especially in the field of Civil Engineering and Architecture. INERSIA is published twice a year, in May and December.
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Articles 312 Documents
Cost and Time Performance Evaluation of a Sports Hall Construction Project Using the Earned Value Method: A Case Study at Gunung Kidul Campus, Universitas Negeri Yogyakarta Pratiwi, Anik Nurul; Prihadi, Wisnu Rachmad; Al-Pashya, Muhammad Donny Reval
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 21 No. 1 (2025): May
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v21i1.84089

Abstract

The main objectives in managing construction work involve controlling costs, ensuring quality, and meeting project deadlines. Construction projects are regarded as successful when they deliver outputs that satisfy predefined quality standards, are finished on time, and stay within the agreed budget. The Earned Value Method (EVM) is a valuable technique in project management for assessing both cost efficiency and schedule adherence throughout the project’s duration. Important indicators for this analysis include BCWP (Budgeted Cost of Work Performed), BCWS (Budgeted Cost of Work Scheduled), ACWP (Actual Cost of Work Performed), Schedule Variance (SV), Cost Variance (CV), Schedule Performance Index (SPI), Cost Performance Index (CPI), Estimated At Schedule (EAS), and Estimated Temporary Schedule (ETS). This research focuses on evaluating the performance of the Sports Hall Building construction project at Gunung Kidul Campus by applying the earned value method. The assessment emphasizes time scheduling and cost management to gauge how well the project progresses relative to its planned schedule and budget. The study’s findings reveal the current condition of both cost and schedule aspects of the Sports Hall Building project at Gunungkidul Campus, Universitas Negeri Yogyakarta. The data showed a positive cost variance, indicating that the project’s actual expenditures were less than originally planned.
Assessment Probability of Soil Liquefaction Potential Based on SPT Data with NovoLIQ Application Oktafiani, Pradyta Galuh; Sasmayaputra, Nur Alfian
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 21 No. 1 (2025): May
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v21i1.78664

Abstract

Liquefaction is a geological phenomenon that occurs when soil loses its strength due to a shock, such as an earthquake, and becomes semi-liquid. Liquefaction usually occurs in water-saturated sandy soils that are subjected to seismic stress. During an earthquake, the pore water pressure in the soil increases, causing the soil grains to lose contact with each other and resulting in the soil becoming unstable and behaving like a liquid. This process can have serious impacts on building structures and the infrastructure above them, such as foundation shifts, building tilting, and structural collapse. The Kulonprogo area is one of the areas that has a variety of soil types ranging from silt to sandy with a shallow groundwater table and is one of areas that according to BMKG, the Kulonprogo area is included in the area that has the potential to be affected by megathrust. Seeing from this, the Kulonprogo area has a high liquefaction potential. Based on this, this research will calculate the liquefaction potential in the Kulonprogo area using soil Cone Penetration Test data. Cone Penetration Test testing is carried out to a depth of 30 meters to evaluate the characteristics of soil layers and obtain N-SPT values that reflect the density and strength of the soil in each layer. The results of SPT testing at depths of up to 30 meters show a variety of soil types ranging from low plasticity silt in the upper layers to sand. The results obtained obtained the CRR value on average at each depth is 0.4 with SF between 1.04-1.68 which has a Liquefaction potential according to Youd and Nobel's theory of 80.2% and according to Centin's theory of 100%. This makes the Kulonprogo area have a high potential for Liquefaction, especially if a megathrust earthquake occurs.