Identification of hazards and analysis of the root causes of construction accidents using the Bow-tie_FMEA Compound Technique (Case Study: Tehran Technical Building Company)

Subject Areas : Environmental Risk Analysis

Alireza Moradi ¹ , Fatemeh Razavian ² , Behnaz Moradi Ghiyasabadi ³

1 - Graduated from Islamic Azad University, Tehran West Branch
2 - Department of Environment, Parand Branch, Islamic Azad University, Parand, Iran.
3 - Department of environment, Damavand Branch, Islamic Azad University, Damavand, Iran

Received: 2019-01-20 Accepted : 2020-01-01 Published : 2023-10-23

Keywords: Critical risk, Hazards idntification, Controlling and corrective actions, Risk Assessment, Pseudo-events,

Abstract :

Background and Objective: Construction industry is known as one of most dangerous industries which incidents occurrence rate is high because of work nature complexity and also unsafe workplaces. Therefor construction jobs are categorized in most dangerous and most full of incident jobs in world. Material and Methodology: In this article technical buildings company of Tehran construction projects known as Khaneh-Shahr and Helal existing hazards have been recognized using checklist and then evaluated and assessed using FMEA risk assessment method. Additionally, critical points technique in order to identify and determine construction projects critical risks has been used and also modeled in the form of bowtie using Bowtie Pro 3.3 software in last phase. Findings: Results have shown that Khaneh-Shahr construction project has 7 critical risks from totally 14 assessed risks and also Helal construction project have 8 critical risks from totally 15 assessed risks which have been modeled separately. Furthur mobile crane reversal risk in Khaneh-Shahr construction project and metal-concrete structures crash with equipment, workers and high voltage electricity cables in Helal construction project with RPNs of 420 and 490 respectively, considered as most significant critical risks. Discussion and Conclusion: It could be concluded there is posiibility to use risk assessment and incident modeling techniques in combined and analizing incident root causes and probable consequences in construction industries using Bowtie analysis method besides.

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