• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advances in civil engineering >Seismic Performance of Full-Scale Joints Composed by Concrete-Filled Steel Tube Column and Reinforced Concrete Beam with Steel Plate-Stud Connections
【24h】

Seismic Performance of Full-Scale Joints Composed by Concrete-Filled Steel Tube Column and Reinforced Concrete Beam with Steel Plate-Stud Connections

机译：用钢板螺柱连接混凝土钢管柱和钢筋混凝土梁组成的全鳞状接头的地震性能

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A concrete-filled steel tube (CFST) column has the advantages of high bearing capacity, high stiffness, and good ductility, while reinforced concrete (RC) structure systems are familiar to engineers. The combinational usage of CFST and RC components is playing an important role in contemporary projects. However, existing CFST column-RC beam joints are either too complex or have insufficient stiffness at the interface, so their practical engineering application has been limited. In this study, the results of a practical engineering project were used to develop two kinds of CFST column-RC beam joints that are connected by vertical or U-shaped steel plates and studs. The seismic performance of full-scale column-beam joints with a shear span ratio of 4 was examined when they were subjected to a low-cyclic reversed loading test. The results showed a plump load-displacement curve for the CFST column-RC beam joint connected by steel plates and studs, and the connection performance satisfied the building code. The beam showed a bending failure mode similar to that of traditional RC joints. The failure area was mainly concentrated outside the steel plate, and the plastic hinge moved outward from the ends of the beam. When the calculated cross section was set at the ends of the beam, the bending capacity of joints with the vertical or U-shaped steel plates and studs increased compared to the RC joint. However, when the calculated cross section was set to the failure area, the capacity was similar to that of the RC joint. The proposed joints showed increases in the energy dissipation, average energy dissipation coefficient, and ductility coefficient compared to the RC joint.
机译：混凝土钢管（CFST）柱具有高承载能力，高刚度和良好的延展性的优点，而钢筋混凝土（RC）结构系统对工程师熟悉。 CFST和RC组件的组合使用在当代项目中发挥着重要作用。然而，现有的CFST列-RC光束接头在界面上过于复杂或者刚度不足，因此它们的实际工程应用受到限制。在这项研究中，使用实际工程项目的结果用于开发两种CFST列-RC光束接头，该钢板和U形钢板和螺柱连接。当对它们进行低环状反转的负载试验时，检查具有剪切跨度比的全尺寸柱束接头的地震性能。结果表明，由钢板和螺柱连接的CFST列-RC光束接头的丰满负载 - 位移曲线，并且连接性能满足了建筑码。该光束显示出类似于传统RC关节的弯曲失效模式。故障区域主要集中在钢板外部，塑料铰链从梁的端部向外移动。当计算出的横截面被设置在光束的末端时，与垂直或U形钢板和螺柱的接头的弯曲能力与RC接头相比增加。然而，当计算出的横截面被设置为故障区域时，容量类似于RC关节的容量。与RC关节相比，所提出的关节显示能量耗散，平均能量耗散系数和延展性系数增加。

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