Study Of Key Structure Safety Monitoring Technolo Of Mountain Roads

Mountain roads for the current domestic ubiquitous key structural cracking damage, disease-prone, early-onset, severe impact on work performance and durability of the structure of reality. In this paper, a key structure as the mountain road research object, based on the structure of the vehicle random excitation power crack damage identification method. At home and abroad on the basis of existing research results, based on dynamics, wave mechanics, and information science and other related theories propose the use of structural vibration modal identification, voiceprint identification and other technical means to establish a "long-span bridges crack damage vehicle dynamic random excitation recognition system,"and conducted a preliminary experimental and theoretical exploration.On this basis, the reference method based on the principle of pressure, the establishment of key structural mountain road long-term monitoring system, focusing on the structure of mountain road position of deflection measurements, establishment of a comprehensive monitoring and analysis system on deflection.At the same time, combined with the existing monitoring information. By analyzing the structures arranged in the camera to obtain the structure of real-time operating process video information. Established key access and key video analysis technology system based on deflection of the structure real time information that it response triggered.Finally, through the practice of engineering. Used Hei chong gou Bridge. This structure in real-time safety monitoring. Prove critical structures mountain road safety monitoring technical feasibility and practicality.This paper presents the key structural mountain road safety monitoring technology. Can be resolved. Mountain roads with complex geological conditions, environment and climate changing many restrictions. This method has broad market prospects and value. It will have a huge economic and social benefits.