...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Bulletin of earthquake engineering >Forming new steel-framed openings in load-bearing masonry walls: design methods and nonlinear finite element simulations
【24h】

Forming new steel-framed openings in load-bearing masonry walls: design methods and nonlinear finite element simulations

机译：在承载砌体墙壁中形成新的钢框开口：设计方法和非线性有限元模拟

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

Forming new openings in load-bearing masonry panels is a frequent activity in engineering practice, often accomplished through very simplified design methods despite the complexity of the mechanical behaviour of the masonry and its interaction with the frame. Scientific literature and building codes provide little information. The Italian building code and the local regulation of Tuscany give some dimensional prescriptions and basic guidelines. Different simplified design methods in the literature lead to wide-ranging results. Here, the problem is approached through nonlinear finite-element analyses. The masonry is modelled through a rotating crack constitutive model, and the interaction between steel-frame and masonry, through cohesive-frictional interface elements. Sensitivity analyses are carried out by varying geometrical and mechanical parameters and the responses are compared in terms of capacity curves. The influence of the steel-profile cross-section, the position of the opening within the wall, and the degree of connection between the steel uprights and the masonry are evaluated. The study is extended to three-dimensional structures to determine the impact of the local operation of the opening formation on global behaviour. Based on the results obtained, some indications and guidelines are proposed.
机译：在承重的砌体板中形成新的开口是工程实践中的频繁活动，通常通过非常简化的设计方法完成，尽管砌体的机械行为及其与框架的相互作用的复杂性。科学文学和建筑规范提供很少的信息。意大利建筑规范和托斯卡纳的当地监管提供了一些维度处方和基本指南。文献中的不同简化的设计方法导致了宽范围的结果。这里，通过非线性有限元分析来接近问题。砌体通过旋转裂缝本构模型进行建模，以及钢架和砌体之间的相互作用，通过粘性摩擦界面元件。灵敏度分析通过不同的几何和机械参数进行，并在容量曲线方面进行比较响应。评估钢型横截面，墙壁内开口的位置的影响，以及钢立柱与砌体之间的连接程度。该研究扩展到三维结构，以确定开口形成对全局行为的局部运行的影响。基于所获得的结果，提出了一些指示和指导方针。

著录项

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