A Study On BIM-based Fire Protection Design Review Technology

In recent years,BIM model has played a core role in the construction industry and gradually become an integral part of the design,construction and operation stages.BIM is an accessible digital model integrating all building data,which can support building code or design rule evaluation model.The integrity of BIM model data is of great significance to improve the automation degree of a series of applications,such as fire drawing inspection,energy consumption analysis,collision inspection,etc.As an important part of building fire prevention,fire drawing review is the key application point of BIM.However,there are some problems in the combination of BIM Technology and fire drawing review:(1)fire drawing review is still in the traditional manual mode.Due to the lack of rule-based knowledge system in the current fire code,the understanding of the code is not uniform,which leads to the quality and efficiency of drawing review does not meet the current needs.(2)In practical application,BIM model often has some problems in the process of data exchange,such as information loss,insufficient,error and so on,which leads to incomplete data of pending model.In view of the above problems,the main work of this paper is as follows: first,aiming at the problem of lack of rule-based knowledge system of fire protection specification,this paper analyzes the characteristic structure of fire protection specification,uses ontology building and information extraction and other related technologies to automatically extract the specification knowledge,generate and store the knowledge map of fire protection design specification,so as to lay a good foundation for the establishment of standard fire protection knowledge system.Secondly,aiming at the problem that the lack of BIM model information leads to the difficulty of room recognition,a room function type recognition method based on simulated annealing and SVM is proposed.This method has high accuracy and strong stability.This work can be used to preprocess BIM model to supplement the information of BIM model.Thirdly,the information of different components in BIM model is extracted,and the data of different components are matched by the inspection rules extracted from knowledge map,so as to realize the automation of fire fighting drawing review.Fourth,combined with the above theoretical research,the system designs the automatic plug-in system of fire drawing review,and verifies the feasibility and practicability of the system in the actual BIM project.The system proposed in this paper has the characteristics of complete detection,accurate drawing review and high efficiency,which is helpful to improve the level of fire automation to a certain extent.