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Causality Analysis of Construction Failure Using The Event Tree Analysis Method and Fault Tree Analysis Ambartiyas, Puspita; Bhaskara, Adwitya
Rekayasa Sipil Vol. 19 No. 1 (2025): Rekayasa Sipil Vol. 19 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2025.019.01.3

Abstract

A Hotel Apartment project had to be halted, leaving the existing building abandoned for several years. The adverse impacts of abandoned buildings can be structural, physical, environmental, aesthetic, health, economic, reputational, and ecological. Abandoned buildings with unknown structural strength are very vulnerable to disasters and can be dangerous if they collapse. This research was conducted to analyze the causality of construction failure in an Apartment Hotel that has been abandoned for the past 6 years using the Event Tree Analysis (ETA) and Fault Tree Analysis (FTA) methods. The study aimed to determine the probability and causes of construction failures and identify the associated risks. Visually, the building experienced some damage to some of the structural components that had been built. The results of the Rapid Visual Screening analysis show that the building has damage to the components of the existing structural elements with a percentage of 43.67% and is included in the Moderate Damage damage level category. Based on the RVS results, an evaluation is carried out using Event Tree Analysis and Fault Tree Analysis to determine the causal flow of construction failure scenarios and the causes of construction failure.
The Use of Source Validation Protocol Approach to Delay Investigation Analysis of Construction Project Realization Gea, Via Dolorosa; Bhaskara, Adwitya; Ambartiyas, Puspita
Rekayasa Sipil Vol. 18 No. 2 (2024): Rekayasa Sipil Vol. 18 No. 2
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2024.018.02.13

Abstract

Delays in construction projects are common and persistent. Frequent disputes also make work time inefficient and result in significant cost increases. Therefore, it is necessary to study or investigate events that are useful as a solution to delay claims and have the potential to be used in litigation. This research has been conducted to maximize reliable data sources. The Source Validation Protocol guides the process for ensuring the validity of the source data based on the Forensic Schedule Analysis methodology. According to the Critical Path Method (CPM) schedule analysis, the construction time of the Rusunawa Building (Rent Simple Flat) of the Health Polytechnic of the Ministry of Health Yogyakarta is 73.2 weeks or 511 calendar days. The 2 data source validation protocols, including Validation of Baseline Schedule Selection, Validation and Rectification, and Validation of As-Built Schedule Sources, Reconstruction, and Validation, greatly influenced the project delays.
IoT-Enabled Smart Building Safety: Bibliometric Mapping and Validation of Research Readiness in Indonesia Bhaskara, Adwitya; Nugraheni, Fitri; Kusumadewi, Sri
JACEE (Journal of Advanced Civil and Environmental Engineering) Vol 8, No 2 (2025): October
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jacee.8.2.32-44

Abstract

Building safety based on the Internet of Things (IoT) has become an increasingly important topic alongside the growing demand for smart building systems in Indonesia. This study aims to explore the direction of research development in this field and to assess the readiness of experts and practitioners for its implementation. The methods include a bibliometric analysis of international publications and a field survey using a questionnaire tested for validity and reliability. The validity test showed that 20 out of 23 items were valid, with an average correlation value of 0.56, while the reliability test obtained a Cronbach’s Alpha of 0.884, indicating a high level of internal consistency. The bibliometric and VOSviewer mapping results reveal that studies on IoT, smart buildings, and safety systems remain weakly interconnected, forming separate clusters with limited thematic overlap. In contrast, most respondents demonstrated a good level of understanding and readiness to adopt IoT-based safety technologies, although practical implementation is still limited to specific projects. Cost, policy, and human resource constraints remain the main barriers. Overall, the findings indicate that conceptual and professional readiness for IoT-based building safety is strong; however, its integration into practice remains insufficient, underscoring the need for closer collaboration among researchers, policymakers, and industry to accelerate the effective implementation of intelligent safety systems in Indonesia.