预应力型钢混凝土框架梁正截面承载力试验及计算  

EXPERIMENT AND CALCULATION OF NORMAL SECTION BENDING CAPACITY OF PRESTRESSED STEEL REINFORCED CONCRETE FRAME BEAMS

作　　者：熊学玉[1,2] 高峰[1] 李亚明[3] 

机构地区：[1]同济大学建筑工程系,上海200092 [2]同济大学先进土木工程材料教育部重点实验室,上海200092 [3]上海建筑设计研究院有限公司,上海200041

出　　处：《工业建筑》2011年第12期24-29,共6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：在两榀预应力型钢混凝土框架竖向静力试验的基础上,提出两种考虑侧向约束影响的预应力型钢混凝土框架梁正截面受弯承载力的计算方法:基于塑性理论下限定理的改进"一般叠加法"和基于《混凝土结构设计规范》基本假定的正截面承载力计算方法。两种方法计算结果与试验误差基本在10%以内,吻合较好,说明所建议方法的理论依据是可靠的,可用于工程设计,为《预应力混凝土设计规范》的编制提供参考。Based on the vertical static test of two prestressed steel reinforced concrete frames,two bending capacity calculated methods are put forward,which consider the impact of lateral restraint on prestressed steel reinforced concrete frame beams.One is the improved ＂general superposition method＂ based on the lower limit theorem of plastic theory calculated results and the other is the method based on the basic assumptions of Code for Design of Concrete Structure.The error between the calculated results by the two methods and those of the test is less than 10%,whose degree of agreement is good,the methods can be used in engineering design and have a certain value of reference for the compilation of Prestressed Concrete Design Code.

关 键 词：预应力型钢混凝土 框架梁 侧向约束 抗弯承载力 

分 类 号：TU398.9[建筑科学—结构工程]