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（1 同濟(jì)大學(xué)預(yù)應(yīng)力研究所， 上海 200092； 2 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; 3 上海市城市建設(shè)設(shè)計(jì)研究總院(集團(tuán))， 上海 200125; 4 中鐵二十四局集團(tuán)有限公司， 上海 200071;）

［摘要］為降低對(duì)城市地面道路、管線、建(構(gòu))筑物的影響，管幕工藝逐漸成為在復(fù)雜環(huán)境下修筑地下結(jié)構(gòu)的首選，通過(guò)40余年的工程實(shí)踐，形成了不同的施工方法。其中的預(yù)應(yīng)力管幕（PCR）工法通過(guò)對(duì)管幕縱向及環(huán)向施加預(yù)應(yīng)力，達(dá)到減小構(gòu)件尺寸、提高整體剛度、方便施工等效果。就PCR工法的主要結(jié)構(gòu)形式、適用范圍、特點(diǎn)、施工方式、未來(lái)發(fā)展等方面做簡(jiǎn)單綜述。

［關(guān)鍵詞］預(yù)應(yīng)力； 預(yù)應(yīng)力管幕(PCR)； 施工方法； 設(shè)計(jì)方法

中圖分類號(hào)：TU378-8文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2018)08-0091-07

Study on technology and design method of prestressed concrete roof

Xiong Xueyu1,2, Gao Xinyu1, Wang Shousheng3,  Xu Jun4, Du Wei4

(1 Institute of Prestressed Structures, Tongji University, Shanghai 200092, China;  2 Key Laboratory of  Advanced Civil Engineering Materials (Tongji University), Ministry of Education, Shanghai 200092, China; 3 Shanghai Urban Construction Design ＆ Ｒesearch Institute(Group) Co．, Ltd．， Shanghai 200125， China;4 China Railway Twenty\|four Bureau Group Co., Ltd.， Shanghai 200071， China）

Abstract:In order to reduce the influence on the roads, pipelines and buildings, the tubular roof method has gradually become the first choice of the construction of underground structure in complex environment nowadays. After more than 40 years practice in engineering, there are various construction methods. The prestressed tubular roof(PCR) method exerts prestress to the tubular roof  in the longitudinal and annular directions to minimize component size, improve overall stiffness and create convenient construction. A brief review was conducted  for PCR method on the main structural form, scope of application, characteristic, construction method and the future development.

Keywords:prestress; prestressed concrete roof(PCR); construction method; design method

*上海市科學(xué)技術(shù)委員會(huì)科研計(jì)劃項(xiàng)目 (16DZ1201600)。

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