文档介绍：河北工业大学
硕士学位论文
混凝土异形柱抗震加固试验研究
姓名:段勇
申请学位级别:硕士
专业:结构工程
指导教师:田稳苓
20061201
河北工业大学硕士学位论文
混凝土异形柱抗震加固试验研究
摘要
钢筋混凝土异形柱框架结构体系是近年迅速发展起来的一种新型的结构体系,但目前
对于异形柱的加固方法和计算理论尚未成熟。为此本文进行了四根混凝土异形柱试件抗震
加固试验研究,比较外包钢加固柱和复合加固柱加固效果,研究其抗弯和抗剪破坏规律,
提出了本试验加固方法抗弯和抗剪承载力计算方法。
首先本文总结了我国混凝土异形柱发展与研究现状,综述了已经较成熟外包钢及碳纤
维布加固技术在国内外的研究与应用进展,并介绍外包钢与碳纤维复合加固法研究现状;
然后具体介绍了混凝土异形柱抗震加固试验研究的设计方案、试验过程及试验现象,详细
分析了试验现象,通过试验数据以及试验现象分析了外包钢加固和复合加固对构件抗弯、
抗剪能力及抗震性能。结果表明,与加固破坏柱相比,碳纤维布与角钢复合加固柱的极限
承载力及延性均有大幅度提高。
在确定钢材、CFRP 和核心混凝土在往复荷载作用下的应力一应变关系模型的基础上,
在此基础上并结合本次试验的结果提出了加固柱的抗弯和抗剪承载力的设计公式,试验结
果与理论值对比,吻合较好,可供工程实践参考。
关键词外包钢,碳纤维布,复合加固,混凝土异形柱,抗弯承载力,抗剪承载力,
桁架-拱模型
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混凝土异形柱抗震加固试验研究
EXPERIMENT AND RESEARCH OF SEISMIC
REINFORCEMENT TO SPECIAL-SHAPED
CONCRETE COLUMN
ABSTRACT
As a new type structural system,the special-shaped concrete column construction developed
quickly in recent years. However, until now the methods and the theories for strengthening
special-shaped columns were not mature. Based on this purpose, the four special-shaped
concrete columns on research of seismic reinforcement,which have been conducted to
investigate the sheer behaviors,mened a reasonable shear capacity design formula of
combination rehabilitation.
At first this passage summarized the prospect of The special-haped concrete column,and
introduced mon rehabilitation methods, and introduced the research statusin Reinforce-
ment with CFRP and bonded steel angles,and introduced the prospect bination of bonded
steel angles (BSA) and carbon fiber reinforced polymersheet(CFRP);Then Manufacture of the
specimen,the whole experiment process and especially concerning phenomena are expounded.
Compared with unstrengthened columns, there is a remarkable improvement in sheer capacity
andthe load-carrying capacity of pressive concrete columns strengthened with
combination of bondeds teel angles andCFRP.
Based on confirmation of stress-strain relationship mode