Research On Efficiency Evaluation Of Large Construction Projects Safety Risk Management

All along, the construction industry has a pivotal position in our country’s national economy, with the rapid development of the construction industry, the construction industry has created a wealth of construction products, but has a variety of construction accidents occur frequently, the risk of large construction projects where security issues concern, it not only affects the fundamental interests of workers, but also affect corporate reputation and image, but also closely related to the stability and development of society. In recent years, with the inputs of security risk management of large construction projects increasing, management outputs also achieved fruitful results, but the security risk problem is still very serious, security risk management, insufficient output. Therefore, researching how to assess the security risk management efficiency of large-scale construction projects, has important practical significance. It should based on cost - effectiveness angle to evaluate the safety risk management efficiency, it is difficult to find problems in the management process and can not solve these problems to improve these deficiencies. Based on the perspective of security risk management process, extract the security risk management efficiency indicators Evaluation Model and apply it to real cases among the last major construction project safety risk management Efficiency paths discussed.First, large-scale construction projects related to security risk management efficiency concept combing, including management efficiency theory, large-scale construction project safety risk management theory, and finally on the basis of defining the meaning of large construction projects security risk management efficiency.Secondly, through literature research, from risk identification, analysis, control three dimensions, based on security risk management process screened out large-scale construction project safety risk management input, output indicators, and then use the Delphi method to optimize the index, so index can more accurately reflect the full input and output large construction projects security risk management.Then, for the extraction of secondary indicators, questionnaire design, data collection, exploratory factor analysis were extracted input, output indicators common factor, internal factor structure formed large-scale construction project risk management efficiency preliminary evaluation model. Finally combined with the formation mechanism of security risk management efficiency of large construction projects to build a complete security risk management model of efficiency, and to a large construction project as an example for empirical study.Finally, the use of structural equation modeling analysis of large construction projects security risk management inputs and outputs affect the path, including the use of a questionnaire to collect data through the model initial assumptions, parameter estimation, model fitting test data, model updating and other sectors, the formation of large-scale construction project security risk management input and output impact model, based on the path coefficient analysis affect the relationship between safety risk management between inputs and outputs, and large-scale construction projects and security risk management efficiency path given a reasonable proposal.