Operation Safety Monitoring Of Roof System Of Bao’an Stadium

In recent years, with the development of economy and society, more and more large-spanspatial structures have been put into application. According to carry out reliable operationsafety monitoring on large-span spatial structures, people can detect and eliminate securityrisks and alert early warning information in advance and ensure the structure is always incontrol, which has great significance for the safety of people’s life and property.Based on the background of roof system of Bao’an stadium, this paper focuses on themonitoring system design, exploitation and construction. Furthermore, this paper puts outmonitoring data processing, and practical reliable testing of the monitoring system. At thesame time, this paper studies to find a warning method，which is based on the measureddisplacement data. The specific works are as follows:（1）This paper summarizes the recent development of health monitoring at home andabroad, introduces the significance, conception, contents, composition and the research ofhealth monitoring. This paper also introduces the cable membrane structural characteristicsand the composition and the structural characteristics of roof system of Bao’an stadium.（2）According to the characteristics of roof system of Bao’an stadium, this paper buildsthe operation safety monitoring system of roof system, which contains sensor system，dataacquisition and transmission system，data processing and control system，periodic monitoringsystem and inspection and maintenance system.（3）This paper mainly does some work of structural response data pretreatment. Forexample, this paper uses some method to eliminate error of real-time and online monitoringdata and smooth the data, which keeps original data successfully. Then, this paper usesrelational analysis to distinguish abnormal value of the measured displacement data. Also, thispaper, this paper uses Pp method to picks up structure’s natural frequency.(4) This paper demonstrates the feasibility and practicability of the operation safetymonitoring system of roof system and analyzes the operations of monitoring system undertyphoon condition.(5)This paper studies a grey GM(1,1) warning method which is based on the measureddisplacement data. Also, this paper sets up an early-warning threshold according to thedisplacement velocity under the most unfavorable conditions.