Research And Application Of Construction Management And Control Platform Of Super Large Suspension Bridge Based On BIM

Chongqing Cuntan Yangtze River bridge was taken as background in this paper,there were many problems in construction of this bridge, such as poor communication of information, interface management conflict and high precision of data acquisition. In order to solve these problems, an idea of constructing a control platform of the super large suspension bridge information construction based on BIM was proposed. In the platform, management objectives like advance control, quality control, resources allocation were unified. Through the combination of BIM technology and database construction, network communication and industrial control technology, the purpose of the dynamic management and information communication were achieved, so as to reach the goal of assistanting management and decision. The major research results are as below:First of all, the solution of information management based on BIM technology was explored through the analysis of information communication barriers which the current construction project information management faced, and combined with the advantages of BIM technology in information transmission and work coordination. Combining with the characteristics and difficulties of Cuntan Yangtze river bridge construction, analysis of the information platform based on BIM respectively from the technical level and application level was made, and the construction level and the conceptual model of the platform was expounded.Second, Navisworks, Revit and other BIM software were chosen to expand the development on the basis of establishing the Sever SQL relational database, a graphic editing platform with visual design capability, ability of dynamic simulation, and ability of data analyzing and processing was built, using the C/S network structure relying on the management objective of the construction determines the overall module, and further to clarify the link between the model component information and site information.Third, the progress module was studied according to the schedule function of data storage, virtual simulation and schedule optimization schedule and real-time tracking,and describes the framework and working principle of schedule management based on BIM.The sub modules of BIM platform were set up in detail, and the progress of the complete workflow module was clarified, then the advantages of the model wereverified in the aspects of model establishment, plan optimization and schedule control.Forth, according to the quality control framework based on BIM, the overall application value and work flow of the quality module in BIM platform were studied;Quality control points of virtual construction, positioning system, quality tracking and engineering quantity were proposed based on the engineering background of the CunTan Yangtze river Bridge, and then the quality sub module was set up in detail.The fifth, aiming at the temperature control problem in Cuntan Yangtze river Bridge North anchorage’s mass concrete construction, a temperature control system was built by using computer control, temperature data acquisition equipment, automatic control valve of circulating water pump, wireless communication network and bridging equipment etc. The automatic control of concrete temperature is completed, through the temperature warning mechanism and the Modbus control protocol, and the concrete temperature change in the position of the corresponding temperature measurement point was reflected by the three dimensional form;The workflow of the control module was analyzed, and were carried out in the North anchorage of large volume concrete construction, which demonstrated the advantages of the temperature control module in improving the work efficiency and the precision of temperature data.