Yong Xia

TL;DR: In this paper, a numerical simulation method of temperature induced structural static responses for long-span suspension bridge is investigated, and the results are compared with the field measurements to verify the validity and efficiency of this method.

Abstract: As an important part of railway operation safety, the quality of railway turnout and its conversion equipment will directly affect the railway operation safety. Therefore, the early warning and alarm of turnout condition, pre fault prevention and diagnosis are particularly important. At present, the railway has no effective turnout monitoring means, and the intellectualization of turnout monitoring still needs to be improved. The establishment of turnout monitoring system with intelligent monitoring means has become the focus of current research. In this paper, the turnout monitoring terminal is designed, combined with the field turnout sensor integration module and the field turnout monitoring and processing unit for joint experimental debugging. In order to realize asynchronous communication and ensure the reliability and flexibility of communication, the combination of remote procedure call and message middleware is used to realize the communication between the foreground monitoring terminal system and the background database. The test results show that the turnout monitoring terminal system has well completed the communication process with the on-site turnout sensor integration module and the on-site turnout monitoring and processing unit, basically completed the requirements for the turnout monitoring terminal system, and the test effect is good, which has a certain reference significance for the intelligent monitoring and research of turnout.

TL;DR: Spatial interpolation method is feasible to predicate the meteorological parameters of bridge site, which provides a higher efficiency and less cost approach to obtaining the on-site meteorological data for the bridge temperature effects analysis and assessment.