Seismic Vulnerability Of Critical Facilities In Mobile Communication System Based On Shaking Table Tests

In the past 10 years,the rapid development of mobile communication system has greatly changed the mode of business operation worldwide,which has an important impact on people’s daily life.The results of earthquake disaster assessment of mobile communication system can serve the design of earthquake insurance scheme before earthquake and the assessment of emergency loss after earthquake,so it is of great significance.However,there are few related studies at home and abroad.Mobile communication system is a complex network system.Its damage and loss assessment after earthquake are based on the study of seismic vulnerability of key nodes in the system.The convergent node computer room and base station computer room are the key nodes in the mobile communication system.The seismic vulnerability of the key equipment in the convergent node computer room has become one of the basic problems in the seismic disaster assessment of the whole mobile communication system.In this paper,two kinds of storage batteries commonly used in convergent node computer room and communication base station computer room,and two kinds of integrated equipment cabinets commonly used in communication base station computer room are taken as research objects.The seismic performance and seismic damage characteristics of these two kinds of equipment are studied through shaking table test.Based on the statistics of shaking table test data,the seismic vulnerability curves of the two types of equipment are obtained.The main work of this thesis is as follows:1.Through field investigation,the main research objects of this paper are storage batteries commonly used in node rooms and base stations and cabinets of general equipment commonly used in base stations.Typical representatives of these two types of equipment are selected for shaking table test.2.Taking two kinds of integrated equipment cabinets commonly used in communication base station computer room as the research object,four seismic simulation shaking table tests of integrated equipment cabinets were carried out,and the key equipment response parameters causing characteristic damage of equipment cabinets were summarized.3.Based on the characteristic phenomena and seismic response data of equipments in shaking table test,the definition of damage index and damage level of storage batteries and equipment cabinets are given,and the seismic vulnerability curve of storage batteries and equipment cabinets are calculated.