The Computer System Of Bridge's Maintainence And Consolidation

Bridge, as a crucial conjunction and controlling place of road, is influenced complicatedly by many factors, for example, design normal, fixed number of year in use, material, environment, quality of maintainence, traffic, load and accident, etc. So, the construction of bridge will be changed and its capacity of bearing the weight will drop down gradually. In addition, bridge's erosion, aging, and damage, all these factors bring about hidden troubles for bridge's use.The computer system of bridge's maintainence and consolidation, which is discussed in this thesis, is set up to resolve the question that the managing department of bridge usually make the decision of bridge's maintainence and consolidation by qualitative knowing about the bridge's state and the experiences of engineer without scientific and systemic methods of examination and valuation. The system establishes a consummate bridge's database and reasonable program of valuation, and collects many typical damages of bridge and its reasons. And, the system obtains the knowledges of specialists in special field to simulate the behavior of expert by these knowledges, and proffer advisable scheme of maintainence and consolidation.The thesis includes seven chapters:The first chapter is the introduction. In this chapter, the basic concept of the system is summarized according to the main experience of the bridge's managing system in mainland and foreign, and the developmental history and present state of the bridge's managing system is reviewed;The second chapter is the data managing subsystem. This subsystem is the base in the whole computer system. These data, that of bridge's design, record in the period of constructing, datum in experiment and that of datum by regular check and the check in important place, are all collected in this system;The third chapter is the evaluated subsystem. Three individual norms andcompositive norm in the use of evaluating the technical state of bridge are proffered in the subsystem, and these normal are established;The fourth chapter is the decision-making subsystem. The subsystem consists of analyzing the formative reasons of bridge's damages and making decision in how to maintaining and consolidating. In it, the decision-making tree model and the representative knowledge repository of the methods of maintainence and consolidation are built;The fifth chapter is the application of the system. The main steps in use and the way of dealing data are expressly presented in cite of the application of tow bridges;The sixth chapter is the systemic analyses in software and the design in its framework, including the course of design, basic framework and its function;The seventh chapter is the conclusion. The main achievements and failings in this thesis are pointed; meanwhile, it points the direction of father research.