- 摘 要
-
(1 濟南大學土木建筑學院, 濟南 250022; 2 同濟大學預應(yīng)力研究所,上海 200092; 3 同濟大學先進土木工程材料教育部重點實驗室,上海 200092; 4 山東省交通規(guī)劃設(shè)計院, 濟南 250031)
[摘要]基于前期研究及《預應(yīng)力混凝土結(jié)構(gòu)設(shè)計規(guī)范》(JGJ 369—2016)的編制,主要介紹了后張有粘結(jié)預應(yīng)力型鋼混凝土框架梁的抗彎承載力、剛度、裂縫計算方法、規(guī)范中計算公式的來源以及基于延性控制的豎向抗震設(shè)計方法。在塑性及延性性能基礎(chǔ)上給出了型鋼、預應(yīng)力筋及受力筋配置量的參考值,對于該結(jié)構(gòu)基于性能的優(yōu)化設(shè)計具有參考作用。最后對該結(jié)構(gòu)形式的不足與發(fā)展提出建議,以期對其推廣起到積極作用。
[關(guān)鍵詞]預應(yīng)力型鋼混凝土; 框架梁; 承載性能; 延性設(shè)計; 豎向抗震性能
中圖分類號:TU398-7文獻標識碼:A文章編號:1002-848X(2018)08-0016-05
Structural design of bonded post-tensioned prestressed steel reinforced concrete frame beams with large span
Gao Feng1, Xiong Xueyu2,3, Yuan Hui4, Zhang Jinxiang4, Guo Jinxin4
(1 School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China; 2 Institute of Prestressed Structures,Tongji University, Shanghai 200092, China; 3 Key Laboratory of Advanced Civil Engineering Materials(Tongji University), Ministry of Education, Shanghai 200092, China; 4 Shandong Provincial Communications Planning and Design Institute, Jinan 250031, China)
Abstract:Based on previous studies and the preparation of the Code for design of prestressed concrete(JGJ 369—2016),the follows of bonded post-tehsioned prestressed steel reinforced concrete(PSRC)frame beam were introduced including the calculation method of flexural capacity, stiffness and crack, the calculation formula adopted in the code,and the vertical seismic design method based on ductility control. On the basis of ductility and ductility performance,the configuration reference values of steel, prestressed tendons and ordinary reinforcement were given,which may provide a reference on optimization design based on performance for PSRC frame beam. Finally, some suggestions were mentioned on the shortcomings and the development of PSRC structure,which can play a positive role in promotion.
Keywords:prestressed steel reinforced concrete structure; frame beam; bearing performance; ductility design; vertical seismic performance
*山東省交通運輸科技計劃項目(2015B30),山東省住房城鄉(xiāng)建設(shè)科學技術(shù)計劃項目(2015KY027),國家自然科學基金資助項目(51178328)。
通訊作者:熊學玉,博士,教授,博士生導師,Email:xueyu@#edu.cn。