Resear On Application Of BIM Technology On Construction Site Safety Supervision

With the promotion and application of BIM technology in the construction industry,it gradually evolves into management platform from a single technical method and changes the traditional engineering management model in field of construction.Construction safety has always been a key issue in the healthy development of the construction industry,and safety supervision on construction site plays an important role in engineering management.Applying BIM technology to the safety supervision on construction site systematically provides a novel direction and advanced technical means to solve the construction site safety supervision;BIM provides the manager humanized technology platform to enhance level of informatization,intelligentization and modernization of the safety supervision on construction site and improve the efficiency of the safety supervision on construction site.To achieve intelligent and efficient construction safety supervision by means of BIM technology is the purpose of the research.Firstly,the fit points between safety supervision on construction site and BIM technology are found.Secondly,Building Information Modeling for safety on construction site is established,which was used to assist in safety supervision,safety information integration and safety evaluation on construction site.Finally,the research puts forward the three modules of the model:modeling module,integrated module,analysis module.This paper mainly studies the application of BIM technology on construction site safety supervision from four aspects:The information requirement standard of BIM and modeling for safety supervision on construction site are studied.By studying the content and related theory of safety supervision on the construction site,this paper divides the safety information into the modeling information and the document information which assists the safety supervision on the construction site.This part summarizes the hierarchical management of the safety information which is more conducive to the expression of the construction geometric model and inquiry of safety information and establishes expression of safety information in BIM Technology.Requirements of Building Information Modeling for safety in every stage of the construction site and the BIM modeling standards which meet the functional requirements of safety supervision are achieved.The research of this part is the prerequisite for the information exchange of Building Information Modeling for safety.The modeling module and integrated module of BIM safety model are studied,which solves the problem of integration of model safety parameter information and external link information.In the modeling module,the original component family is re-designed for safety function,and the security attribute is added on the original attribute to realize the effective call of the security parameter.The family of safety device is designed to realize the visualization of the accident subject that includes scaffolding family,security protection family,construction equipment family.In the BIM information integration module,the platform of BIM-based safety documents management is developed for the external link information(security supervision documents)for safety supervision on the site.The establishment of lightweight safety platform to integrate modeling and documents effectively solves the inconsistency of safety information on construction site between external link information and model information and greatly improves the practicality of BIM technology to ensure that BIM safety supervision work effectively is implemented on construction site.This part of the study is specific technical means to create Building Information Modeling for safety.The analysis module of Building Information Modeling for safety is studied,which makes effective use of the safety parameters information of the site feedback to carry on the dynamic evaluation of the safety status of the construction site.In the evaluation method,the BP neural network optimized by genetic algorithm is used to evaluate the safety level of the construction site.The evaluation model of the GA-BP network is trainned by matlab to realize automatic evaluation in computer.The results of the analysis and evaluation obtained at each construction stage are fed back to the safety management to realize the safety control with the progress on construction site.Taking the public rental housing project of Nanjing Jiangning Development Zone as an example,this paper studies the engineering application of BIM technology on construction site safety supervision.Building a visual BIM construction site solves problems of road planning and site layout;By the auxiliary safety design function,achieves the design and disclosure of the cantilevered scaffolding to its safety;By the role of process control of Building Information Modeling for safety on construction site,ensures effective feedback and interaction of safety information on construction site;By the safety analysis of Building Information Modeling for safety of the construction site,predicts the possibility of the accident and the damage degree to assist in site safety supervision.Finally,the research work in paper is summarized and analyzed,and the main conclusions and further study of the problem are raised.