Simulation And Detection Of Cable-Stayed Bridge

With the development of traffic and the advancement of technology, the detection of bridge is considered to be more and more important. Its main signification expresses in the applications as follows: assess of actual carrying capacity of today's bridges, foundation of technical information of bridges, and developments of the assess theories of old bridges and design theories of new bridges. Since 1940s, finite element method (FEM) gradually holds the important roles in scientific research and engineering analysis. At present, it is the main stream of the domain of numerical calculation. An unknown expert says that the integration of analysis and detection technique will be the hotspot of bridge's detection in the future. That's to say, the numerical analysis techniques based-on FEM will be banded together with field examines, and they will check and reinforce each other.In details, this paper discusses the principle, method and content of structural detection of cable-stayed bridge. At the same time, the author takes one cable-stayed bridge as the example, and exposes its factual results of detection.Recently, the structural simulation technique for bridge is used more and more, and it has been one notable symbol of the progress of technique of bridge engineering. The simulation of cable-stayed bridge is based on entire FEM model, which can completely and exactly reflects the actual state and behavior. This paper studies the structural characters and mechanic specialties of cable-stayed bridge, detailed discusses the total thought and work process, and takes one engineering example. Compared the results of simulation with the results of field examination, we can find there is consistency. Therefore, the results of simulation and calculation can instead of some easy detection work, which will abate the burden of the future's detection task.This paper aims the exposition of the methods of detection of cable-stayed bridge, and aims the integration of simulation calculation and detection technique in order to check their consistency. It has five chapters. In chapter one, the author summarizes the detection of bridge and the structural characters and development of cable-stayed bridge. In chapter two, the methods of detection and evaluation of cable-stayed bridge is discussed in details. In chapter three, we can study theprinciple, methods and practical processes of simulation model of cable-stayed bridge. In chapter four, the author compares the results of the detection of one cable-stayed bridge and the results of simulation calculation. The last chapter summarizes the whole paper and puts forward several prospects.