低周反复荷载下二层再生混凝土框架抗震性能试验研究

胡波; 柳炳康; 王成刚; 余超

doi:10.13204/j.gyjz201309010

低周反复荷载下二层再生混凝土框架抗震性能试验研究

doi: 10.13204/j.gyjz201309010

1.
合肥工业大学土木与水利工程学院,合肥230009

基金项目:

建设部科技资助项目(2007-K2-29);安徽省自然科学基金资助项目(090414163)

详细信息

作者简介:
第一作者:胡波，男，1984 年出生，博士。email：hubojoint@126.com

中图分类号: TU375.4;TU352.11
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- 文章访问数: 88
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- 被引次数: 0
出版历程
- 收稿日期: 2012-09-21
- 刊出日期: 2013-09-20

EXPERIMENTAL STUDY ON SEISMIC PERFORMANCES OF A TWO-STOREY REINFORCED RECYCLED AGGREGATES CONCRETE FRAME UNDER LOW-CYCLE REPEATED LOAD

1.
School of Civil and Water Conservancy Engineering,Hefei University of Technology,Hefei 230009,China

摘要

摘要: 通过对1榀单跨二层再生混凝土框架进行低周反复试验，研究其结构的破坏特征、滞回性能、骨架曲线、强度和刚度退化和耗能能力等。同时，利用预先设置在钢筋上的应变片研究和分析再生混凝土框架梁柱中纵筋、箍筋关键点应变在低周反复荷载下的变化规律。试验结果表明，再生混凝土框架梁端、柱脚荷载-曲率滞回曲线较丰满，有良好耗能能力。结构变形为屈服时的3.5倍时，其承载力无明显降低。再生混凝土框架具有良好的抗震性能，应用于工程实际是可行的。
- 再生混凝土 /
- 框架 /
- 梁端曲率 /
- 钢筋应变 /
- 低周反复荷载
Abstract: A two-story reinforced recycled aggregates concrete (ＲAC) frame was tested under low-cycle repeatedload． The failure characteristics，hysteretic behavior，skeleton curve，strength degradation，stiffness degradation andenergy dissipation capacity etc． were evaluated． Meanwhile，the change law of the strains on the reinforcement barslocated in columns and beams was also analyzed using the embedded strain gages． The experimental results show thathysteretic curves obtained from the tested ＲAC frame have plump shapes，indicating the ＲAC frame has good energydissipation capacity． No significant decrease was found in bearing capacity when the deformation reached 3. 5 timesthe yield deformation． The seismic performances of ＲAC frame are quite good and the application of ＲAC frame isfeasible for civil engineering structures．
- recycled aggregate concrete /
- frame /
- curvature of beam end /
- rebar strain /
- low reverse loading

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参考文献(7)

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