Development of of a safety performance index assessment tool by using a fuzzy structural equation model for construction sites

2018-01-01
Gunduz, Murat
Birgönül, Mustafa Talat
Ozdemir, Mustafa
The main goal of this study is to propose a safety performance index assessment tool to improve the construction safety. Formulation of the safety performance index of construction sites is achieved upon a validated multidimensional safety performance model. The contribution of this study could be summarized as incorporation of fuzzy set theory into structural equation modeling to develop a safety performance index assessment software tool. Case studies were conducted at 11 international construction sites and the results of their site safety performance indices were benchmarked. A short (simple) safety performance model was developed as an alternative to the full model (proposed model) to assess safety performance of construction sites. Results showed that short model predicts the safety performance with an acceptable accuracy and requires less time to complete. Finally, a safety performance index assessment software tool for construction sites was proposed by developing a site safety performance (SSP) application for mobile devices based on the validated multidimensional safety performance model. The paper attempts to numerically validate the influencing factors of construction safety with the help of a mobile device application. The paper also develops a mobile application tool to measure safety performance at any construction site.
AUTOMATION IN CONSTRUCTION

Suggestions

Development of Fragility Curves for Single-Column RC Italian Bridges Using Nonlinear Static Analysis
Perdomo, Camilo; Monteiro, Ricardo; Sucuoğlu, Haluk (Informa UK Limited, 2020-05-07)
The main objective of this study is to assess the accuracy and suitability of Nonlinear Static Procedures (NSPs) in the development of analytical damage fragility curves for seismic risk assessment of large portfolios of Reinforced Concrete (RC) bridges. Seven NSP approaches, from widely used single-mode conventional pushover-based approaches to the more rigorous multi-mode conventional or adaptive pushover-based procedures are implemented. By systematically comparing fragility curve estimations in terms of...
Fuzzy Structural Equation Model to Assess Construction Site Safety Performance
Gunduz, Murat; Birgönül, Mustafa Talat; Ozdemir, Mustafa (American Society of Civil Engineers (ASCE), 2017-04-01)
The main goal of this study is to examine the relationships between determinants of safety performance of construction sites. To achieve this goal, 168 observable variables and 16 latent dimensions that affect safety performance of construction sites were collected through extensive literature reviews, expert opinions, and face-to-face interviews. A questionnaire form was developed and administered to construction professionals as a data-collection tool about the observable variables and latent dimensions. ...
Rating and reliability of existing bridges in a network
Akgül, Ferhat (American Society of Civil Engineers (ASCE), 2003-11-01)
Currently, the load rating is the method used by State DOTs for evaluating the safety and serviceability of existing bridges in the United States. In general, load rating of a bridge is evaluated when a maintenance, improvement work, change in strength of members, or addition of dead load alters the condition or capacity of the structure. The AASHTO LRFD specifications provide code provisions for prescribing an acceptable and uniform safety level for the design of bridge components. Once a bridge is designe...
Importance of Degrading Behavior for Seismic Performance Evaluation of Simple Structural Systems
Erberik, Murat Altuğ (Informa UK Limited, 2011-01-01)
This study focuses on effect of degradation characteristics on seismic performance of simple structural systems. Equivalent single degree of freedom systems are used for which the structural characteristics are taken from existing reinforced concrete (RC) frame buildings. Simulation of degrading behavior is achieved by considering actual experimental data. To obtain the seismic response of degrading structural systems, two different approaches are used: inelastic spectral analysis and fragility analysis. Ac...
A knowledge-based risk mapping tool for cost estimation of international construction projects
Yildiz, Acelya Ecem; Dikmen Toker, İrem; Birgönül, Mustafa Talat; Ercoskun, Kerem; Alten, Selcuk (Elsevier BV, 2014-07-01)
Effective risk assessment and management is critical for success in international construction projects. This paper proposes a knowledge-based risk mapping tool for systematically assessing risk-related variables that may lead to cost overrun in international markets. The tool uses an ontology that relates risk and vulnerability to cost overrun [1] and a novel risk-vulnerability assessment methodology [2] to estimate potential risk paths that may emerge in international construction projects. The tool has b...
Citation Formats
M. Gunduz, M. T. Birgönül, and M. Ozdemir, “Development of of a safety performance index assessment tool by using a fuzzy structural equation model for construction sites,” AUTOMATION IN CONSTRUCTION, pp. 124–134, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34566.