• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Conference on Connections Between Steel and Concrete Vol.2 Sep 10-12, 2001 Stuttgart, Germany >HEADED STUD ANCHOR - CYCLIC LOADING AND CREEP-CRACKING INTERACTION OF CONCRETE
【24h】

HEADED STUD ANCHOR - CYCLIC LOADING AND CREEP-CRACKING INTERACTION OF CONCRETE

机译：带头螺栓锚固-混凝土的循环荷载与蠕变开裂相互作用

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

It is well known that the ultimate resistance of a concrete member under sustained load compared to the resistance of the same member loaded by instantaneous load can be considerably smaller. One of the reasons for this is creep-cracking interaction which for a sustained load causes an increase of damage zone and reduction of ultimate capacity. This effect is stronger if the structure was previously loaded by cyclic loading. In the present paper is demonstrated that the microplane model for concrete which is coupled in series with the linear creep model (Maxwell chain model) is able to account for the above phenomena. The three-dimensional finite element analysis of concrete specimen loaded in uniaxial compression and the analysis of a headed stud anchor loaded by monotonic and cyclic shear load was carried out. It is shown that the shear resistance of the anchor under sustained load reduces by 15%. Moreover, the reduction of the load-capacity increases if the anchor has previously been loaded by cyclic load.
机译：众所周知，与承受瞬时载荷的相同构件的电阻相比，混凝土构件在持续载荷下的极限电阻可以小得多。造成这种情况的原因之一是蠕变-裂纹相互作用，这种相互作用在持续的载荷下会导致损坏区域的增加和极限承载力的降低。如果结构是先前通过循环加载加载的，则此效果会更强。本文证明，与线性蠕变模型（麦克斯韦链模型）串联的混凝土微平面模型能够解决上述现象。进行了单轴受压混凝土试件的三维有限元分析，以及单调和循环剪切载荷下的双头锚固分析。结果表明，锚在持续载荷下的抗剪强度降低了15％。此外，如果锚固先前已经被循环载荷加载，则载荷容量的减小增加。

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