首页> 外文学位 >Seismic behavior of steel building structures with composite slabs.
【24h】

Seismic behavior of steel building structures with composite slabs.

机译:带有复合板的钢结构建筑的抗震性能。

获取原文
获取原文并翻译 | 示例

摘要

As part of the activities of the steel structure phase of the U.S.-Japan Cooperative Earthquake Research Program Utilizing Large-Scale Facilities, experimental and analytical studies of full-scale composite beam-to-column joints and of a 0.305 scale model of the six-story prototype steel building structure have been carried out. The objectives are (i) to investigate the effect of composite slabs on the seismic characteristics of the composite beam-to-column joints and their structural elements as well as the interaction between the elements, (ii) to search for mathematical models of composite beams and composite beam-to-column joint panel zones for the purpose of the inelastic analysis of steel building structures with composite slabs, and (iii) to study the lateral load-deformation response of a dual lateral force-resisting bracing system consisting of a concentrically braced frame and two moment-resisting frames and the feasibility of a quasi-static test method in study of structural response to earthquake ground excitations.; Three types of composite beam-to-column joints, one interior and two exterior, have been tested with displacement-controlled cyclic loading. A two-step analysis approach using finite element methods is proposed to analyze the load-deformation behavior and the results are compared with the tests. Mathematical models of composite beams and composite beam-to-column joint panel zones have been developed by parametric studies.; The major findings are summarized as follows: (1) Increase in the stiffness and strength of composite beams due to composite slab is substantial. (2) Composite beam-to-column joint panel zones showed excellent seismic behavior with high reserve strength beyond yielding. (3) Essentially two types of joint behavior have been found. The joint with substantial shear yielding of the panel zone showed good ductility. On the other hand, the full beam strength did develop in the joint with a relatively stiff and strong panel zone, but its ductility was impaired by flange local buckling or fracture. (4) The proposed analytical (hysteretical) models for the two structural elements adequately take into account the effect of composite slab on cyclic behavior. (5) The strength of a dual lateral force-resisting bracing system is limited by the strength of the braces. (6) The hysteresis loops of the joints assemblages and of the overall structure were stable and repetitive. (Abstract shortened with permission of author.)
机译:作为利用大型设施的美日合作地震研究计划的钢结构阶段活动的一部分,对全尺寸梁到柱复合节点以及0.305比例模型(六层)进行了实验和分析研究故事原型钢结构建筑已经进行。目的是(i)研究复合板对复合梁-柱节点的抗震特性及其结构要素以及各要素之间的相互作用的影响;(ii)搜索复合梁的数学模型和组合梁-柱组合面板区域,用于具有复合板的钢结构结构的非弹性分析,以及(iii)研究由同心圆组成的双侧向抗力支撑系统的侧向荷载-变形响应支撑框架和两个抗弯框架,以及准静态试验方法在研究地震激励结构响应中的可行性。在位移控制的循环载荷下测试了三种类型的梁-柱组合节点,一种是内部的,两种是外部。提出了一种使用有限元方法的两步分析方法来分析载荷-变形行为,并将结果与​​试验进行比较。通过参数研究已经开发了复合梁和复合梁至柱的联合面板区域的数学模型。主要研究结果归纳如下:(1)由于复合板引起的复合梁刚度和强度的增加是可观的。 (2)组合梁对柱连接面板区域表现出优异的抗震性能,具有超出屈服的高储备强度。 (3)基本上发现了两种类型的关节行为。面板区域具有明显的剪切屈服的接头表现出良好的延展性。另一方面,在具有相对刚度和强壮的面板区域的接缝中确实出现了全梁强度,但是其延展性由于法兰局部屈曲或断裂而受到损害。 (4)所提出的两个结构单元的分析(滞后)模型充分考虑了复合板对循环行为的影响。 (5)双向抗力支撑系统的强度受到支撑强度的限制。 (6)接头组件和整体结构的磁滞回线是稳定且重复的。 (摘要经作者许可缩短。)

著录项

  • 作者

    Lee, Seung Joon.;

  • 作者单位

    Lehigh University.;

  • 授予单位 Lehigh University.;
  • 学科 Engineering Civil.
  • 学位 Ph.D.
  • 年度 1987
  • 页码 300 p.
  • 总页数 300
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;
  • 关键词

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