次内力对预应力混凝土及型钢混凝土结构性能影响的研究进展  

THE STATE AND THE ART OF STUDY ON THE EFFECTS OF SECONDARY INTERNAL FORCE ON THE BEHAVIOR OF PRESTRESSED CONCRETE AND STEEL CONCRETE STRUCTURES

作　　者：熊学玉[1] 王美华 李媛[1] 吕品[1] 

机构地区：[1]同济大学建筑工程系,上海200092 [2]上海建工集团股份有限公司,上海200080

出　　处：《工业建筑》2011年第12期1-7,共7页Industrial Construction

基　　金：国家工程建设行业标准<预应力混凝土结构设计规范>研究项目;上海市科委科技支撑计划(09231201102);国家自然科学基金(E080501);教育部高等学校博士学科点专项科研基金(20090072110051);铁道部重点课题(2010G009-K);科技部创新项目(10C26213100691)

摘　　要：对次内力对预应力混凝土及型钢混凝土结构使用阶段及承载极限阶段影响的现状做了全面综述。由于带有复杂冗余约束的预应力混凝土超静定结构与连续梁结构具有不同的受力特点,已有的一些计算理论和方法具有局限性,进而对今后拟开展的研究提出建议。A comprehensive review is given to the effects of existing secondary forces on prestressed concrete and steel concrete structures at the use stage and the stage of the limit load.Due to the fact that the mechanical characteristics of a statically indeterminate prestressed concrete structure with redundant constraints are different from those of a continuous beam structure,there are a number of limitations in the theories and methods of computation and recommendations are also proposed for future researches.

关 键 词：预应力混凝土及型钢混凝土结构 次内力 正常使用 极限承载力 

分 类 号：TU378[建筑科学—结构工程] TU398.9