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复合材料碳纤维布加固含裂纹钢梁实验研究
引用本文:童谷生,张予,林春阳. 复合材料碳纤维布加固含裂纹钢梁实验研究[J]. 华东交通大学学报, 2007, 24(4): 1-4
作者姓名:童谷生  张予  林春阳
作者单位:华东交通大学,土木建筑学院,江西,南昌,330013;华东交通大学,土木建筑学院,江西,南昌,330013;华东交通大学,土木建筑学院,江西,南昌,330013
基金项目:华东交通大学校科研和教改项目
摘    要:采用15根模型钢梁的试验研究,结果表明:利用不同长度,不同厚度补片加固后的梁静强度的变化是不一样的;全长补片短补片长度加固效果好,随补片厚度的增加其静强度也有所增加,与未加固对比梁相比较最大静承载力提高55%;梁加固前后的刚度变化不太明显;加固后梁的延性有所降低.

关 键 词:碳纤维布  加固  裂纹钢梁  静强度
文章编号:1005-0523(2007)04-0001-04
收稿时间:2007-04-18
修稿时间:2007-04-18

The Experimental Study of Strengthening Damaged Steel Beam with Carbon Fiber-Reinforced Polymer Sheets
TONG Gu-sheng,ZHANG Yu,LIN Chun-yang. The Experimental Study of Strengthening Damaged Steel Beam with Carbon Fiber-Reinforced Polymer Sheets[J]. Journal of East China Jiaotong University, 2007, 24(4): 1-4
Authors:TONG Gu-sheng  ZHANG Yu  LIN Chun-yang
Affiliation:School of Civil Eng. And Are. ,East China Jiaotong Uiv. ,Nanchang 330013 ,China
Abstract:Fifteen pre-cracked steel beams are tested through three point bending experiment.The difference between the repaired steel beams with carbon fiber polymer sheets and control beams is studied in details.The experiments shows improvement of pre-cracked steel beams strengthened with CFRPs have an average raise more than 37% in strength,maximums is 55%.Whereas the flexural stiffness is no more than control beam's.
Keywords:pre-cracked  beam  rRP strengthen  strength  repair.
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