Fine Management Application Of BIM Technology In The Existing Buildings' Retrofitting

Since the reform and opening up,China's economic development have achieved a qualitative leap,the construction industry in China as one of the three pillar industries,has also developed rapidly.China's existing building area has reached about 50 billion square meters,including a large number of existing buildings due to the influence of the prevailing level of technology,the influence on the economic level and the policies and regulations that shows the level of resource consumption became high,comfort became poor,the use of functions didn't satisfy the current situation demand.The amount of China's existing buildings need to be transform is huge,but there are many conditionality in the process of existing buildings renovation,such as the transformation of spatial,resources and cost is limited,the information of existing building was serious insufficient,changes throughout the entire construction period,highly uncertainty in control of time,quality and cost,ext.Facing such choke point,it will be the important method to seek new technology method and the management idea.This paper combines the concept of fine management,taking the existing construction renovation period as a fine management objective,and applys it to the BIM technology popular in current construction industry.Through the BIM core technology and application features of related softwares,this paper explores the conjunction point between transformation of existing buildings and BIM technology in order to establish a fine management mode based on BIM technology in the reconstruction of existing buildings.Through the application research of BIM technology in the management of existing building renovation construction period,the paper has proved that the BIM technology is refined,standardized and streamlined scientific management mode in the existing construction renovation construction period,which improves effectively renovation management status of existing buildings,reduces the cost of the existing construction renovation,upgrades the quality,schedule and safety of existing construction renovation projects and achieves the objective of transformation of the existing building efficiency.Based on the study of the background and present situation of the existing buildings,this paper firstly summarizes the problems existing in the existing construction renovation and the gaps in the study,and then determines the research direction of this topic.Optimization,simulation,visibility and other unique features of the application of BIM technology make up for the inadequacies of the existing construction renovation.Then this paper discusses the BIM technology and the retrofitting of the existing construction,and puts forward that the existing construction renovation is introduced into the BIM technology so as to achieve the urgency of finemanagement.At last,the paper mainly elaborates the application process of the fine management of BIM technology in all phases of the reconstruction of the existing building,and solves the management problems in the renovation,and gives some advices on the existing buildings combining the practical cases,confirmed the fine management on the BIM technology in both the necessity and feasibility of the existing buildings,hoping to help the retrofitting management work of existing constructions.