• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)论文集 >Influence Analysis of Large Pulse Strain Rate Effect on Moment-Curvature Relationship for Reinforced Concrete Structure Section
【24h】

Influence Analysis of Large Pulse Strain Rate Effect on Moment-Curvature Relationship for Reinforced Concrete Structure Section

机译：大脉冲应变率效应对钢筋混凝土结构截面弯矩-弯矩关系的影响分析

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

摘要

Near-fault earthquake ground motions, which are characterized by large amplitude velocity pulse and have resulted in the significant damage of reinforced concrete (RC) structures located in near-fault zone, cause large strain rate effect to the structures. At the same time, the quasi-statically tests are normal used to study the seismic response oftbe RC structures. The large pulse type loading of near-fault earthquake motions can cause the structure to behave very differently than predicted in laboratory tests. For the aim of the influence of strain rate effect on the section moment-curvature relationship, the proposed calculation equation considered large strain rate effect is constructed by using of the strip method to analyze the influence level for RC structures. And then, the important parameters such as the elastic modulus of concrete, compressive strength of concrete, yielding strength and ultimate strength reinforcing steel bar considered large strain rate effect are analyzed and used to predict the moment-curvature curve. The results show that the yielding strength and the ultimate strength of section became large, and the bending capacity of RC structure has a remarkable improvement. Finally, through comparing with existing experimental results, the theoretic calculated results are fit to existing testing data.
机译：近断层地震地震动的特征在于大幅度的速度脉动，并导致位于断层附近区域的钢筋混凝土结构的显着损坏，从而对结构产生较大的应变率效应。同时，准静态试验是正常的，用来研究钢筋混凝土结构的地震反应。断层附近地震运动的大脉冲型加载会导致结构的行为与实验室测试中所预测的完全不同。为了影响应变率效应对截面弯矩-曲率关系的影响，提出了考虑条形法对RC结构的影响程度的计算公式，提出了考虑大应变率效应的计算方程。然后，分析了考虑大应变速率效应的混凝土的弹性模量，混凝土的抗压强度，屈服强度和极限强度钢筋等重要参数，并用于预测弯矩-曲率曲线。结果表明，截面的屈服强度和极限强度变大，RC结构的抗弯能力有了明显的提高。最后，通过与现有实验结果进行比较，将理论计算结果与现有测试数据进行拟合。

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