首页> 外文学位 >Performance-based seismic vulnerability evaluation of existing buildings in old sectors of Quebec.
【24h】

Performance-based seismic vulnerability evaluation of existing buildings in old sectors of Quebec.

机译:基于性能的魁北克旧城区现有建筑物的地震脆弱性评估。

获取原文
获取原文并翻译 | 示例

摘要

To perform a seismic vulnerability evaluation for the existing buildings in old sectors of Quebec, two major tools at two different levels are missing: first, in the context of the seismic vulnerability assessment of a group of buildings, an updated rapid visual screening method which complies with the Uniform Hazard Spectra presented in the 2005 version of the National Building Code of Canada (NBCC) does not exist; and second, in the context of loss estimation studies, capacity and fragility curves which are developed based on the specific building typologies present in those sectors are required. In this research work, in the first place, a building classification for the existing buildings in old sectors of Quebec considering the masonry as the main construction material is proposed. Later, an updated rapid visual screening method---in the form of vulnerability indices for different typologies and cities in Quebec---which is adapted to the Uniform Hazard Spectra in NBCC 2005 is proposed. The structural vulnerability indices (SVI) are calculated through the application of the improved nonlinear static analysis procedure in FEMA 440 Improvement of nonlinear static seismic analysis procedures for three levels of seismic hazard. A set of index modifiers are also presented for the building height, irregularities, and the design and construction year. To deal with the second problem, on the other hand, a performance-based seismic vulnerability evaluation method is applied to examine the structural performance of two buildings---a 6-storey industrial masonry building and a 5-storey concrete frame with masonry infill walls, as two of the building classes constructed vastly in old sectors in Quebec---at multiple seismic demand levels. The results of such an assessment are used to develop dynamic capacity and fragility curves for the target buildings. The Applied Element Method is used here as an alternative to FE-based methods to conduct a thorough 4-step performance-based seismic vulnerability evaluation. To this end, the Incremental Dynamic Analyses (IDA) for the buildings are carried out using various sets of synthetic and real ground motions representing three M and R categories. Consequently, the fragility curves are developed for the three structural performance levels---Immediate Occupancy, Life Safety, and Collapse Prevention. Finally, the mean annual frequencies of exceeding those performance levels are calculated by combining the data from the calculated fragility curves and those from the region's hazard curves. The proposed method is shown to be useful to conduct seismic vulnerability evaluations in regions for which little observed damage data exists.;Keywords: Applied Element Method, Masonry, Incremental Dynamic Analysis, Rapid Visual Screening, Performance-Based Seismic Evaluation
机译:为了对魁北克旧城区的现有建筑物进行地震易损性评估,缺少了两个不同级别的两个主要工具:首先,在对一组建筑物进行地震易损性评估的背景下,一种更新的快速视觉筛查方法符合不存在2005年版的《加拿大国家建筑规范》(NBCC)中提出的《统一危险光谱》;第二,在损失估算研究的背景下,需要根据这些部门中存在的特定建筑物类型开发的容量和脆弱性曲线。在这项研究工作中,首先,提出了以砖石为主要建筑材料的魁北克旧城区现有建筑物的建筑物分类。后来,提出了一种更新的快速视觉筛查方法-以魁北克不同类型和城市的脆弱性指数形式-适应了NBCC 2005中的统一危害光谱。通过在FEMA 440中应用改进的非线性静态分析程序来计算结构脆弱性指数(SVI),该方法针对三个级别的地震灾害改进了非线性静态地震分析程序。还提供了一组针对建筑物高度,不规则以及设计和施工年份的指数修改器。另一方面,为解决第二个问题,采用基于性能的地震易损性评估方法来检验两栋建筑物的结构性能:一栋六层工业砌体建筑和一栋五层混凝土砌体填充体墙,作为魁北克老城区大量建造的两个建筑类别-在多个地震需求水平下。评估的结果用于开发目标建筑物的动态容量和脆弱性曲线。在这里,“应用元素方法”被用作基于有限元方法的替代方法,以进行全面的基于4步性能的地震易损性评估。为此,使用代表三个M和R类别的各种合成和真实地面运动进行建筑物的增量动态分析(IDA)。因此,针对三个结构性能水平(即时占用,生命安全和防塌)开发了脆性曲线。最后,通过结合计算出的脆弱性曲线和区域危害曲线中的数据,计算出超过这些性能水平的年平均频率。所提出的方法对在几乎没有观测到破坏数据的地区进行地震易损性评估是有用的。关键词:应用元素法,砌体,增量动力分析,快速目视筛查,基于性能的地震评估

著录项

  • 作者

    Karbassi, Amin.;

  • 作者单位

    Ecole de Technologie Superieure (Canada).;

  • 授予单位 Ecole de Technologie Superieure (Canada).;
  • 学科 Engineering Architectural.;Engineering Civil.
  • 学位 Ph.D.
  • 年度 2010
  • 页码 157 p.
  • 总页数 157
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-17 11:37:25

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