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Influence of higher modes of vibration on the behaviour of reinforced concrete shear walls structures.

机译：较高振动模式对钢筋混凝土剪力墙结构性能的影响。

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摘要

A parametric analytical study was carried out to examine the inelastic seismic response of reinforced concrete shear walls designed according to the provisions of the 2005 National Building Code of Canada (NBCC) and the CSA-A23.3-04 Standard. The studied walls were assumed to be part of 5-, 10-, 15-, 20-, and 25-storey office buildings located in Montreal, QC, and Vancouver, BC. Moderately ductile shear walls qualifying for a ductility-related force modification factor, Rd, of 2.0 were considered for the Montreal site whereas the walls in Vancouver were of the Ductile shear wall category (Rd = 3.5).; Nonlinear time history analyses of the walls were performed under site-specific ground motion ensembles using the Ruaumoko computer program. Two different wall models were used: frame elements with concentrated plastic hinges at their ends and wall elements with fiber discretization of the cross-section.; For both models, the results indicate that the deformation demand of all walls remain below the limits specified in the 2005 NBCC for buildings of the normal importance category. The shear force demand in all structures was found to exceed the values predicted by the capacity design procedures implemented in the CSA-A23.3 Standard. Correction factors are proposed to adequately predict the maximum shear forces in walls for both sites.; A reduced-scale model specimen to study the inelastic seismic response of shear walls by shaking table test in Structural Laboratory at Ecole Polytechnique of Montreal was proposed, designed and verified, as well a modified scaling similitude procedure.
机译：进行了参数分析研究，以检查根据2005年加拿大国家建筑规范（NBCC）和CSA-A23.3-04标准的规定设计的钢筋混凝土剪力墙的非弹性地震响应。假定研究的墙壁是位于QC蒙特利尔和BC省温哥华的5层，10层，15层，20层和25层办公楼的一部分。蒙特利尔地区考虑了适合延性相关力修正系数Rd为2.0的中度延性剪力墙，而温哥华的墙壁属于延性剪力墙类别（Rd = 3.5）。使用Ruaumoko计算机程序，在特定地点的地面运动合奏下对墙进行非线性时程分析。使用了两种不同的壁模型：在端部具有集中式塑料铰链的框架元件和在横截面上具有纤维离散的壁元件。对于这两种模型，结果表明，所有墙体的变形需求均保持在2005年NBCC中指定的正常重要类别建筑物的限制以下。发现所有结构的剪切力需求都超过了CSA-A23.3标准中实施的能力设计程序所预测的值。建议使用校正因子来充分预测两个位置的墙体中的最大剪切力。提出，设计和验证了一种简化的模型标本，该模型标本是通过蒙特利尔Ecole Polytechnique的结构实验室中的振动台试验研究剪力墙的非弹性地震响应的方法，并提出了改进的标度相似程序。

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  • 作者

    Velev, Nikolay Nikolov.;

  • 作者单位

    Ecole Polytechnique, Montreal (Canada).;

  • 授予单位 Ecole Polytechnique, Montreal (Canada).;
  • 学科 Engineering Civil.; Engineering Mechanical.
  • 学位 M.Sc.A.
  • 年度 2007
  • 页码 241 p.
  • 总页数 241
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;机械、仪表工业;
  • 关键词

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