...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Constructional Steel Research >Probabilistic seismic demand model and fragility analysis of transmission tower subjected to near-field ground motions
【24h】

Probabilistic seismic demand model and fragility analysis of transmission tower subjected to near-field ground motions

机译：近场地震动下输电塔的概率地震需求模型与脆性分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Electricity transmission system is well recognized as a lifeline system in the modern society, and its failures in past major earthquakes have aroused the concern about its seismic vulnerability. In the present study, fragility curves are developed to assess the vulnerability of a typical transmission tower subjected to near-field ground motions. A probabilistic seismic demand model (PSDM) is constructed for the transmission tower in terms of the maximum inter-segment drift ratio (ISDR) and the spectral acceleration (S-a) at the fundamental period of the structure. Pushover analysis is performed to define the capacity limit states for the transmission tower, which are serviceability, damage control and collapse prevention in this research. The data for the PSDM are acquired by using incremental dynamic analyses (IDAs) of a suite of seismic records. Additionally, the influence of the seismic incident angles and the coupling effect between the transmission tower and lines on the structural fragility are further investigated. The results quantify the seismic vulnerability of the transmission tower and demonstrate the influence of the seismic incident angles and the dynamic coupling effect between the transmission tower and lines. (C) 2019 Elsevier Ltd. All rights reserved.
机译：输电系统是现代社会公认的生命线系统，其在过去的大地震中的失灵引起了人们对其地震脆弱性的关注。在本研究中，脆弱性曲线被开发出来以评估典型输电塔在近场地面运动下的脆弱性。针对输电塔，根据结构基本周期的最大段间漂移比（ISDR）和频谱加速度（S-a），建立了概率地震需求模型（PSDM）。进行推覆分析来定义输电塔的容量极限状态，即本研究中的可维修性，损坏控制和防止倒塌。通过使用一组地震记录的增量动态分析（IDA）来获取PSDM的数据。此外，进一步研究了地震入射角和输电塔与线路之间的耦合效应对结构脆性的影响。结果量化了输电塔的地震脆弱性，并证明了地震入射角的影响以及输电塔与线路之间的动力耦合效应。 （C）2019 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Journal of Constructional Steel Research》 |2019年第5期|266-275|共10页
  • 作者

    Tian Li; Pan Haiyang; Ma Ruisheng;

  • 作者单位

    Shandong Univ, Sch Civil Engn, Jinan 250061, Shandong, Peoples R China;

    Shandong Univ, Sch Civil Engn, Jinan 250061, Shandong, Peoples R China;

    Shandong Univ, Sch Civil Engn, Jinan 250061, Shandong, Peoples R China|Curtin Univ, Sch Civil & Mech Engn, Ctr Infrastruct Monitoring & Protect, Kent St, Bentley, WA 6102, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Transmission tower; Fragility curves; PSDM; Pushover analysis; IDA;

    机译：输电塔脆性曲线PSDM推力分析IDA;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号