钢筋混凝土梁的碳纤维布加固法的研究-桥梁工程专业论文.docxVIP

Y；7696《摘 Y；7696《 摘 要 —＼心酰有桥粱和结构的维修与加I札娃tH=界各国都普遍关注的重火科研课题，而采州 绵j}2』睃粘剂粘贴碳纤维布加l卉j桥梁，是目前混凝十．结构加嘲技术方面国际上卜分活 跃的研究内容。碳纤维布加l州泄凝十粱以其重域轻、耐腐蚀、强度高、施I方便、 同顺和总结前人的理论分析和试验成果的基础上，针对粘贴碳纤维布加捌混凝十梁 的具体特点，对以卜儿个问题进行了初步的探索和研究： l、人苗的试验研究表明， 采川合理的粘贴I：艺和锚同措施是实现川粘贴碳 纤维布方法加㈨混凝十梁的关键环’1，。本文对刚碳纤维布加吲混凝十梁的 粘贴I：艺和锚同措施进行了探讨。 !、对坼粘结破坏的被加㈣梁进行了力学分析，推导山与补{虽加砩粱有天的截 面计算公式。 3、影响铍加竹I梁的极限弯矩的因素很多，本文在考虑材料竹线性的基础上， 探讨了混凝十强度、钢筋配筋率和碳纤维布的强度雨I截面白分比等对被加㈨粱 的极限弯矩的影响。 4、川解析的方法对被加I州梁进行了分析，得到了碳纤维布和混凝十粱之间的 粘结面上的剪麻力硐f法向应力的解析解，并刚有限元软什进行了模拟分析，井 对两种进行了对比。讨论了各种参数对粘结剪麻力和法向戍力的影响。 I 5、蛀厉任总结全文的基础上，对粘贴碳纤维布加I州混凝j：梁有待进步f究 的问题进仃r阐述，井对有关旧题提山了作者的一些看法。 【关键涮】复合材料碳纤维布补强加I古I粘贴钢筋溉凝十粱 ABSTRACTThe ABSTRACT The repair and reinforcement of existing bridges and structures is a significant technology research problem followed with interest worldwide and at present the reinforcement technology of concrete beams strengthened with epoxy—bended FRP plates is popular ipternationally．There are severaI merits of this strengthen method．It iS of lightweight，corrosion resistance and high strength；It is economical and Can be rapidly applied in the construction with little el‘no disturbance to bridge operation；It does not change the configuration of the structure：It does not reduce the headroom：The dead load caused by the reinforcement materials could be omitted．Therefore the method iS more and more rapidly applied by the departments of design， construction and the consumer．The thesis，on the basis of reviewing and summarizing the predecessors research result oftheoretical analysis and experimental investigation，studies initially the following problems in accordance with the specific characteristic of concrete beams strengthened with CFRP plates： l、A lot of experiments and research suggest that adopting reasonable a礤xing technics and anchoring measure are the ke3’of realizing the reinforcement technology of concrete beams strengthened with CFRP plates．The thesis makes a discuss on the affixing technics and anchoring measu陀of this strengthening method． 2、The