| 落地通信基站机房地震易损性及震后功能失效概率评估 |
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| 引用本文： | 毛晨曦,李诗尧,张亮泉.落地通信基站机房地震易损性及震后功能失效概率评估[J].世界地震工程,2018,34(2):055-64. |
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| 作者姓名： | 毛晨曦 李诗尧 张亮泉 |
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| 作者单位： | 1. 中国地震局工程力学研究所 中国地震局地震工程与工程振动重点实验室, 黑龙江 哈尔滨 150080;2. 东北林业大学 土木工程学院, 黑龙江 哈尔滨 150080 |
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| 摘 要： | 机房是移动通信基站的重要组成部分，其地震易损性将决定基站在震后的功能状态，即基站所辖范围内的移动通信服务在震后是否可以正常使用。在对我国北方某市典型落地通信基站机房进行实地考察的基础上，确定了影响机房地震后使用功能的重要设施（即基站板房、内部走线架、通信机柜和蓄电池组）；随后采用有限元软件ABAQUS分别建立了这些设施的数值模型，通过Pushover分析确定了每种设施的损伤模式、损伤水平评价指标及其数值；通过IDA分析得到了每种设施的抗震性能，并通过对IDA分析结果的统计得到了这些重要设施的地震易损性曲线；最后，给出了基于故障树模型的典型通信基站机房震后功能评估的方法。该工作将作为基本环节用于城市及地区移动通信系统的地震后功能状态评估与预测。
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| 关 键 词： | 通信基站机房 静力推覆分析 增量动力分析 地震易损性 震后功能状态评估 |
Seismic fragility and functional failure probability assessment of machine room of typical base transceiver stations that located on the ground |
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| MAO Chenxi,LI Shiyao,ZHANG Liangquan.Seismic fragility and functional failure probability assessment of machine room of typical base transceiver stations that located on the ground[J].World Information On Earthquake Engineering,2018,34(2):055-64. |
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| Authors: | MAO Chenxi LI Shiyao ZHANG Liangquan |
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| Institution: | 1. Key Laboratory of Earthquake Engineering and Engineering Vibration of CEA, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China;2. School of Civil Engineering, Northeast Forestry University, Harbin 150080, China |
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| Abstract: | Machine rooms are important part in Base Transceiver Stations (BTS) of mobile communication system. Their seismic fragility will determine the functional status of BTS, that is, whether the mobile communication service within the scope of the BTS can be used normally after an earthquake. Based on the field-study on a typical BTS in a northern city of China, the important facilities (including steel panel room, cable tray, equipment cabinet and storage battery) affecting the functional status of BTS after earthquakes were determined.Then, the numerical models of these facilities weree stablished by using the finite element software ABAQUS. The damage modes, damage indexes and their values of each facility were determined by Pushover analysis.The seismic performance of each facility was obtained by IDA analysis, and the seismic fragility curves of these important facilities were obtained by statistical analysis of IDA results.Finally, based on fault tree model, the method evaluating functional status of BTS after earthquakes was given. The work of this paper will be used as the basic work for the evaluation and prediction of the functional status of mobile communication system of an area after earthquakes. |
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| Keywords: | machine room of BTS pushover analysis incremental dynamic analysis seismic vulnerability functional status assessment after earthquake |
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