摘要
通过对5根相同断面,相同配筋率,翼缘采用再生粗骨料取代率依次为0%、30%、50%、70%及100%的再生混凝土,腹板采用普通混凝土制备的T形截面叠合梁的弯曲试验,研究了各梁的受弯性能、变形特征及极限破坏形态等。结果表明:再生混凝土T形截面叠合梁的受弯性能和极限破坏形态与普通混凝土T形截面叠合梁类似;梁正截面的平截面假定依然适用;现行GB 50010—2010《混凝土结构设计规范》依然适用于再生混凝土T形截面叠合梁极限承载力的计算。
The flexural behaviors of four recycled concrete T-shaped cross-section superposed beams and one natural aggregate concrete T-shaped cross-section superposed beam were contrasted by full-scale test.The experimental results showed the features of the flexural mechanism of these recycled aggregate concrete superposed beams were similar to those of the natural aggregate concrete superposed beams; the plane section assumption of normal section was still applicable for the recycled concrete superposed beams .The current “Code for Design of Concrete Structures”（GB 50010-2010） was still suitable for calculating the ultimate bearing capacity of the recycled aggregate concrete T-shaped cross-section superposed beams .
出处
《工业建筑》
CSCD
北大核心
2014年第5期47-50,84,共5页
Industrial Construction
基金
广西自然科学基金项目(2012GXNSFBA053151)
广西科技攻关项目(桂科攻0992001-2)
广西研究生教育创新计划资助项目(2010105960814M01)
广西建筑新能源与节能重点实验室开放基金项目(11-03-21-3)
关键词
再生混凝土
T形截面
叠合梁
受弯性能
recycled concrete
T-shaped cross-section
superposed beams
flexural performance
