Cao, D and Cheng, L (2025) Risk accumulation assessment method for building construction based on complex network. Engineering, Construction and Architectural Management, 32(3), pp. 1522-1545. ISSN 0969-9988
Abstract
Purpose: In the evolution process of building construction accidents, there are key nodes of risk change. This paper aims to quickly identify the key nodes and quantitatively assess the node risk. Furthermore, it is essential to propose risk accumulation assessment method of building construction. Design/methodology/approach: Authors analyzed 419 accidents investigation reports on building construction. In total, 39 risk factors were identified by accidents analysis. These risk factors were combined with 245 risk evolution chains. Based on those, Gephi software was used to draw the risk evolution network model for building construction. Topological parameters were applied to interpret the risk evolution network characteristic. Findings: Combining complex network with risk matrix, the standard of quantitative classification of node risk level is formulated. After quantitative analysis of node risk, 7 items of medium-risk node, 3 items of high-risk node and 2 items of higher-risk nodes are determined. The application results show that the system risk of the project is 44.67%, which is the high risk level. It can reflect the actual safety conditions of the project in a more comprehensive way. Research limitations/implications: This paper determined the level of node risk only using the node degree and risk matrix. In future research, more node topological parameters that could be applied to node risk, such as clustering coefficients, mesoscopic numbers, centrality, PageRank, etc. Practical implications: This article can quantitatively assess the risk accumulation of building construction. It would help safety managers could clarify the system risk status. Moreover, it also contributes to reveal the correspondence between risk accumulation and accident evolution. Originality/value: This study comprehensively considers the likelihood, consequences and correlation to assess node risk. Based on this, single-node risk and system risk assessment methods of building construction systems were proposed. It provided a promising method and idea for the risk accumulation assessment method of building construction. Moreover, evolution process of node risk is explained from the perspective of risk accumulation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | building construction; complex network; risk accumulation; risk evolution; risk factor |
| Index terms: | building construction, manager, quantitative analysis, gephi, methodology, evolution, clustering, risk assessment, risk factor, investigation |
| Subjects: | data collection methods, data analysis and analytics, data science, practitioner, environmental science, research methods, financial risk, building construction, environmental hazards |
| Topics: | Digital Applications, Roles and Professions, Construction Technology, Cost Management, Research Practice, Sustainability |
| Descriptive scope: | 4 PCTA |
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