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（1 同濟(jì)大學(xué)預(yù)應(yīng)力研究所， 上海 200092； 2 中國(guó)建筑西南設(shè)計(jì)研究院有限公司， 成都 610041；  3 同濟(jì)大學(xué)先進(jìn)土木工程材料教育部重點(diǎn)實(shí)驗(yàn)室， 上海 200092； 4 華東建筑設(shè)計(jì)研究院有限公司， 上海 200002）

［摘要］基于前期研究及《預(yù)應(yīng)力混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)程》（DGJ 08-69—2015）的修訂工作，闡述了有粘結(jié)與無(wú)粘結(jié)混合配置預(yù)應(yīng)力筋混凝土梁開(kāi)裂階段、正常使用階段、承載能力極限狀態(tài)下的計(jì)算公式，公式的形式與現(xiàn)行規(guī)范中有粘結(jié)預(yù)應(yīng)力混凝土梁的計(jì)算公式統(tǒng)一，通過(guò)調(diào)整公式中相關(guān)參數(shù)的取值以考慮有粘結(jié)與無(wú)粘結(jié)預(yù)應(yīng)力筋混合配置的影響。

［關(guān)鍵詞］預(yù)應(yīng)力混凝土； 有粘結(jié)； 無(wú)粘結(jié)； 混合配置

中圖分類號(hào)：TU378-2文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2018)08-0021-03

Design of hybrid reinforcement concrete beams with bonded and unbonded prestressed tendons

Zhang Sen1,2, Xiong Xueyu1，3，  Bao Lianjin4

(1 Institute of Prestressed Structures, Tongji University, Shanghai 200092, China; 2 China Southwest Architectural Design and Research Institute Co.,  Ltd., Chengdu 610041, China； 3 Key Laboratory of Advanced Civil Engineering Materials(Tongji University), Ministry of Education, Shanghai 200092, China；4 Ｅａｓｔ Ｃｈｉｎａ Ａｒｃｈｉｔｅｃｔｕｒａｌ Ｄｅｓｉｇｎ＆Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ Ｃｏ．， Ｌｔｄ．， Ｓｈａｎｇｈａｉ ２００００２， Ｃｈｉｎａ)

Abstract:According to previous research and the preparation of revise of the Design Code for Prestressed Concrete Structures (DGJ 08-69—2015), computational formulas of hybrid reinforcement  concrete beams with bonded and unbonded prestressed tendons were presented for crack stage, service stage and bearing capacity ultimate stage. The form of the formulas was consistent with the formulas of bonded prestressed concrete beams in the existing codes, and the influence of the hybrid reinforcement with bonded and unbonded prestressed tendons was taken into account by adjusting the values of the relevant parameters in the formulas

Keywords:prestressed concrete; bonded; unbonded; hybrid reinforcement

*國(guó)家自然科學(xué)基金資助項(xiàng)目（５１１７８３２８，５１５７８４００）

通訊作者：熊學(xué)玉，博士，教授，博士生導(dǎo)師， Email：xueyu@#edu.cn。