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劉小蘭1，張獻(xiàn)民1,2

（1 中國民航大學(xué)， 天津 300300； 2 南京航空航天大學(xué)， 南京 210016）

［摘要］對(duì)FRP加固混凝土矩形柱承載力的研究少、模型繁瑣，不利于加固工程的實(shí)際應(yīng)用。本文修正得到FRP加固素混凝土強(qiáng)度計(jì)算公式；又結(jié)合Mander模型，利用箍筋與FRP約束混凝土作用相似理論，得到FRP加固鋼筋混凝土強(qiáng)度模型；按規(guī)范BS8110短柱極限軸壓承載力設(shè)計(jì)公式，得FRP加固鋼筋混凝土矩形柱的承載力公式；并將該公式計(jì)算結(jié)果與國外矩形柱試驗(yàn)結(jié)果對(duì)比，最終驗(yàn)證該公式可滿足FRP加固混凝土矩形柱的計(jì)算要求。

［關(guān)鍵詞］FRP加固； 鋼筋混凝土矩形柱； 承載力

中圖分類號(hào)： TU375.3    文獻(xiàn)標(biāo)識(shí)碼： A    文章編號(hào)： 1002-848X(2015)S2-0412-03

Study on the bearing capacity of FRP reinforced concrete rectangular columns

Liu Xiaolan1， Zhang Xianmin1,2

(1 Civil Aviation University of China, Tianjin 300300, China;

 2 Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)

Abstract： The research of FRP reinforced concrete rectangular columns is fewand, the model of FRP reinforced concrete rectangular columns is various and is no help for the practical application of the reinforcement engineering.The strength formula of FRP reinforced concrete plain was corrected,the strength models of FRP reinforced concrete were got combined with the Mander model and the similarity theory between stirrups and FRP confined concrete. According to limit design formulas of short columns under axial compression in BS8110, the capacity formula of FRP reinforced concrete was got.Compared the results of the strength models and the test results of rectangular column, the formula can meet the computing requirements of FRP reinforced concrete rectangular columns.

Keywords： FRP reinforced; reinforced concrete rectangular column; capacity

作者簡介：劉小蘭，碩士研究生， Email：d1066323835@126.com。