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从梁理论浅析碳纤维布提高梁抗弯承载力的力学原理
引用本文:曾丁,张劲泉,魏洪昌,王国亮,王来永.从梁理论浅析碳纤维布提高梁抗弯承载力的力学原理[J].公路交通科技,2004,21(4):56-58,62.
作者姓名:曾丁  张劲泉  魏洪昌  王国亮  王来永
作者单位:交通部公路科学研究所,北京,100088
摘    要:本文依据材料力学和钢筋混凝土结构设计原理中的梁理论,分析了碳纤维布提高梁抗弯承载力的力学原理,指出在碳纤维布(CFRP)满足强度要求的前提下,碳纤维布与混凝土之间的剪切强度是控制梁提高抗弯承载能力的因素,提出了碳纤维布粘贴长度的计算方法。

关 键 词:碳纤维布  钢筋混凝土梁  抗弯承载力  剪应力
文章编号:1002-0268(2004)04-0056-03

Beam Theory Based Analysis Study on Mechanics Principle of Enhancing Flexural Strength of Beam with CFRPs
ZENG Ding,ZHANG Jin quan,WEI Hong chang,WANG Guo liang,WANG Lai yong.Beam Theory Based Analysis Study on Mechanics Principle of Enhancing Flexural Strength of Beam with CFRPs[J].Journal of Highway and Transportation Research and Development,2004,21(4):56-58,62.
Authors:ZENG Ding  ZHANG Jin quan  WEI Hong chang  WANG Guo liang  WANG Lai yong
Abstract:According to the beam theory in materials mechanics and structural design principle of RC,the mechanical principle of enhancing flexural strength of beam with carbon fiber reinforced plastics sheet (CFRPs) is analyzed.Under the precondition of enough tension intensity for CFRPs,the flexural strength of beam is controlled by the shearing intensity on the interface of CFRPs and RC.The method calculating the length of bonded CFRPs is provided.
Keywords:Carbon  fiber  reinforced  plastics  sheet  (CFRPs)  Reinforced  concrete  beam(RC)  Flexural  strengthening  Shearing  stress
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