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绕丝加固预损钢筋混凝土柱的抗震性能试验研究
Experimental research on seismic behavior of seismic-damaged reinforced concrete columns repaired with steel wire ropes
投稿时间: 2017-01-13  最后修改时间: 2017-04-18
DOI:
中文关键词:  钢筋混凝土柱  绕丝加固  低周反复荷载  预损伤  抗震性能
英文关键词:RC columns  Steel wire Ropes  low cyclic reversed loading  pre-damaged  seismic behavior
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
作者单位E-mail
司建辉 西安理工大学土木建筑工程学院 sjhfr@163.com 
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中文摘要:
      对4根钢筋混凝土柱进行了模拟地震的预损伤、预损伤后绕丝加固和加固后的低周往复荷载破坏试验, 研究了绕丝加固地震损伤钢筋混凝土柱的抗震性能,在试验数据的基础上对比分析了试件的承载力、延性性能及耗能能力。试验结果表明:经过绕丝加固修复后的预损伤试件其延性性能和极限位移得到了明显提高;钢筋混凝土柱的预损伤程度对预损伤后的加固效果有重要影响,在轻度损伤程度情况下,绕丝加固柱恢复并超过受损前的抗震性能,预损伤越大的柱经绕丝加固后其延性、耗能能力、刚度和承载力越小。
英文摘要:
      The test consisted of pre-damaged loading,rehabilitation with steel wire ropes and destruction tests under lateral cyclic loading,investigating the seismic behavior of seismic-damaged reinforced concrete columns repaired with steel wire ropes.Based on the test data,the ductility,bearing capacity,energy dissipation and stiffness degradation for different columns were compared systematically.Test results show that the ductility and ultimate displacement were improved obviously;The effect of columns repaired with steel wire ropes related to their pre-damage degree,the rehabilitated columns can reach or even exceed the level of their original seismic performances before seismic damage in a mild extent of damage level,more serious injured column shows lower ductility,dissipative ability,stiffness and bearing capacity.
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