884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

【提要】  介紹了上海市《預(yù)應(yīng)力混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)程》修訂的主要內(nèi)容。除依據(jù)現(xiàn)行國家規(guī)范調(diào)整《規(guī)程》部分條文外，主要改進(jìn)之處包括材料及錨具系統(tǒng)、考慮次內(nèi)力影響的結(jié)構(gòu)設(shè)計(jì)方法、結(jié)構(gòu)使用性能設(shè)計(jì)規(guī)定、超長結(jié)構(gòu)的預(yù)應(yīng)力設(shè)計(jì)、體外預(yù)應(yīng)力混凝土結(jié)構(gòu)的設(shè)計(jì)與構(gòu)造等?！兑?guī)程》繼承原規(guī)程的特點(diǎn)，對(duì)橋梁和特種結(jié)構(gòu)的設(shè)計(jì)均有所涉及。
【關(guān)鍵詞】  預(yù)應(yīng)力混凝土結(jié)構(gòu)  設(shè)計(jì)規(guī)程  修訂
Introduction to the Revision of Design Code for Prestressed Concrete Structures/
Xiong Xueyu1,2，Gu Wei1，Cai Yue1，Sheng Tufu3，Zheng Yimin4（1 Prestressed Institute，Tongji University，Shanghai 200092，China；2 Key Laboratory of Advanced Civil Engineering Materials(Tongji University)，Ministry of Education，Shanghai 200092，China；3 Tongji Prestressing Engineering Co., Ltd.，Shanghai 200092，China；4 The Architectural Design Research Institute, Tongji University，Shanghai 200092, China）Abstract:The newly revised provisions of Design Code for Prestressed Concrete Structure are briefly introduced, including the improvement on materials and anchorage systems, structural design method considering the secondary forces, serviceability design specifications, the prestressing design for the extralong concrete structures, as well as design and detailing of external prestressing, and so on. Meanwhile, inheriting the native characteristic, design specifications for PC bridges and special structures are also involved in this revision.
Keywords:prestressed concrete structure；design code；revision
1)同濟(jì)大學(xué)預(yù)應(yīng)力研究所，上海，200092；2)先進(jìn)土木工程材料教育部重點(diǎn)實(shí)驗(yàn)室（同濟(jì)大學(xué)），上海，200092；3)上海同吉預(yù)應(yīng)力工程有限公司，上海，200092；4)同濟(jì)大學(xué)建筑設(shè)計(jì)研究院，上海，200092。
*上海市《預(yù)應(yīng)力混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)程》（修訂）研究項(xiàng)目，上海市建設(shè)技術(shù)發(fā)展基金（B05043）資助。