碳纤维布加固砌体墙的抗震特性对比研究

随着加固领域的不断发展,纤维增强复合材料加固技术应用在砌体结构领域具有重要的理论研究意义和应用价值.在碳纤维布加固砌体结构的实际工程及试验的基础上,利用有限元软件ANSYS建立模型,对“X”型和“#”型两种加固方式进行模拟分析,计算结果与试验结果相符.根据碳纤维布加固砌体墙的力学模型,选取了正八字、倒八字及菱形三种不同加固方案进行抗震特性对比分析.分析结果表明,正八字加固对提高砌体墙刚性效果最好,菱形加固是刚性与延性结合较好的一种加固方式.

Comparative study on seismic characteristics of masonry walls strengthened by CFRP

With the continuous development of reinforcement field,the use of fiber reinforced polymer in masonry structures has important theoretical significance and applied value.On the basis of the engineering and experiment for masonry walls strengthened with CFRP（Carbon Fiber Reinforced Polymer）,＂X＂ and ＂#＂ strengthening type are analyzed with ANSYS.The analysis results are consistent with the experiment results.Then,according to the mechanics model of reinforced masonry wall with CFRP,three different reinforcement ways are selected and the seismic characteristics are studied.The analysis results show that the positive eight characters reinforcement can improve the rigid of masonry walls,the diamond reinforcement is better in combination of rigidity and ductility.