【摘要】 通过对两个缩尺比为1/4的两层单跨钢筋混凝土框架结构模型的加固、未加固及其震坏后再加固的3次振动台对比试验,探讨了其动力特性、地震反应和损伤破坏情况.同时运用有限元程序建模进行了计算,分析了不同试验模型的损伤机理,对比了根据不同损伤机理进行抗震加固的效果.试验研究及计算分析表明:根据损伤机理的不同,用碳纤维布(CFRP)有针对地加固钢筋混凝土框架结构能够提高其抗震能力,并满足抗震规范要求.更多还原

【Abstract】 Based on the shaking table test of 1/4 scale two-bay RC frame modes strengthened with and without CFRP(Carbon fiber-reinforced plastic),damaged and destroyed model strengthened with CFRP,the vibration properties and seismic response and destroying position of RC frame model with CFRP are analyzed.According to damage mechanism analysis,finite element models are developed to simulate the dynamic experiments,and the anti-seismic effect of model strengthened with CFRP is studied and contrasted.The results of the experiments and finite element analysis indicated that the seismic capability of the RC frame structures strengthened with CFRP can be remarkably improved,and the seismic code is satisfied.更多还原