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項劍鋒,陳 微
(浙江劍鋒加固工程有限公司,杭州311112)[摘要]《混凝土結(jié)構(gòu)加固設(shè)計規(guī)范》(GB50367-2006)正在修編中。為了配合規(guī)范修編工作,就規(guī)范中存在的3個比較主要的問題:高強碳纖維片材能否充分利用強度題、體外預應(yīng)力加崮法用低強鋼筋補強拉桿的合理性和采用體外預應(yīng)力加固法加固鋼筋混凝土大梁時對原構(gòu)件混凝土強度最低要求的問題,通過理論分析和結(jié)合工程實踐提出看法。
[關(guān)鍵詞] 規(guī)范修編;高強碳纖維片材;體外預應(yīng)力加固法;低強補強拉桿;最低混凝土強度Discussion on some problems in the existing Design code for strengthening concrete structure(GB50367-2006)
Xiang Jianfeng, Chen Wei
(Zhejiang jianfeng reinforcement engineering Co., Ltd., Hangzhou, Zhejiang 3 11112, China)Abstract: At present the Design code for strengthening concrete structure (GB50367-2006) was amending, in order to coordinate the revision of design code, the view according to the existing design code through the theoretical analysis and engineering practice from three major problems were put forward: whether high-strength carbon fiber sheet can make full use of the strength in reinforceing the concrete structure, the rationality of using low-strengthen reinforcing rods in externally prestressed reinforcement and the minimum requirements of concrete strength of the reinforced concrete beam by using externally prestressed reinforcement.
Keywords: revision of design code; high-strength carbon fiber sheet; externally prestressed reinforcement; low-strengthen reinforcing rods; minimum concrete strength