Abstract
Falling is the most common one during bridge construction. Current safety management on site mainly relies on checklist assessment. Yet the assessment result is often influenced by the ability and experience of the evaluator, thus is not impossible to achieve consistent and systematic assessment objective. Moreover, most critical factors that can prevent occurrence of accidents cannot be found from existing safety management and assessment method. This paper built a Bayesian Network (BN) model by converting Fault Tree to assess the fall risk of bridge construction projects. We analyse falling factors and their relationships in Bayesian Network, and collect prior probability event and calculate the probability for the entire model. Using the model to analyse and validate with the current bridge projects under construction, the results from Bayesian Network is consistent with that from conventional labour safety performance assessment. Therefore, the ability to manage site safety of the model is proven to be useful.
Highlights
Construction industry plays an important role in major national projects
In the comparison between Eqns (3) and (4), we found that the top event probability of Fault Tree Analysis (FTA) and Bayesian Network (BN) are the same
This paper establishes an effective process to build a falling risk assessment model based on Bayesian Network in bridge construction projects that use advanced shoring method
Summary
Construction industry plays an important role in major national projects. Site safety of construction industry and national development are closely correlated. Transportation, which is highly related to civic life, living environment and quality, plays an important role and is one of the major indexes of national development. A complete transportation network enhances social benefits, saves time and promotes convenience. Whether it is high speed rail or highway system, all transportation system relies heavily on the application of bridges. Various new bridge construction methods are developed. The new constructed bridges are splendid in appearance and shape but complicated in structure and construction. If the design is not appropriate or is poor in quality, extra cost and even site casualty might be induced
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