A Study On Intelligent Simulation Method Of Structure State

The application of computer in civil engineering has a history of more than 40 years. Computer simulation is to take advantage of computer to give a relatively vivid imitation of physical process, systematic structure, social economy, etc. This technology has many applications in civil engineering, such as simulation of structural component destruction and rock and soil instability, etc. This paper is based on the National Key Laboratory Projects "Intelligent Simulation of Anti-seismic Structure" and "Intelligent Health Monitoring System for Large-Scale Roof Lattice Structure of Shenzhen Civil Center", researches intelligent simulation method of structure state including dynamic simulation technology combining physical model, numerical technique with visualization technology, as well as intelligent information processing technology.At present, engineering structure has a developing trend to large-scale and huge-scale, materials diversity, and structure complexity. According to traditional analytical methods, high-speed and large-scale computer will output a great amount of data, which are difficult to handle and make use of. Former civil engineering information processing methods cannot satisfy the consumers' diversified requirements of accuracy, directness, speediness, interaction and diversity. Because we need to continuously acquire and analyze data, and rapidly process such information and data to give timely feedbacks, which will be used in structure optimization design, project construction management and structure health monitoring, etc, the demand for data and information digitization, quantification and intelligent processing is increasingly improved. As a result, the application of intelligent simulation method of structure state, permeated by advanced computer science technology, has given a great impetus to the in-depth research on civil engineering theory and rapid development of civil engineering technology.This paper provides a set of intelligent simulation method of structure state, which mainly combines intelligent technique of information processing, scientific visualization technique, and computer dynamic simulation and emulative technique. Based on XML visualized interface technique, soft component technique and engineering database, etc, this method fully integrates advanced computer science technology with structure analysis and optimization in the field of civil engineering,not only reflecting problems effectively and directly, and assisting structure analysis and optimization, but only resolving the difficulties in traditional methods because of data insufficiency or disturbance, to provide an advanced technological method for dynamic analysis of structure stress and health monitoring of system. The research contents of this paper mainly includes:(1) Research several representative structure analysis models and response simulation method of structure power. Collect and collate the result data of finite element analysis about the representative structures of the large-scale roof network structure in Shenzhen Civil Center and the underground passages of Chongqing aquarium and provide analysis models for visualization of structure analysis results.(2) Research the result data characteristics of structure analysis and the three-dimensional visualization technology of finite element analysis result, and draw a comparison between the post-processing visualization of universal finite element software and the realized visualization according to direct programming method.(3) Research visualization interface technology based on XML. Analyze several kinds of structure modeling software and finite element analysis software, such as AutoCAD, 3DMAX, Algor and ANSYS, and use the identifying language XML of structure data description to realize the uniform interface among several software result data documents and engineering database, to provide effective support for post-processing visualization. Establish the visualization interface of structure analysis result data that bears extended fu...