考虑配筋影响的混凝土构件早期收缩量计算方法  

SUGGESTIVE METHOD ON EARLY SHRINKAGE CALCULATION OF CONCRETE MEMBER INFLUENCED BY REINFORCEMENT

作　　者：于德湖[1] 韩传峰[2] 吕天启[3] 付长春 张同波 

机构地区：[1]青岛理工大学土木学院,山东青岛266033 [2]同济大学经济与管理学院,上海200092 [3]北京市建筑工程研究院,北京100039 [4]青建集团股份公司,山东青岛266071

出　　处：《建筑技术》2010年第3期251-253,共3页Architecture Technology

基　　金：青岛市科技攻关项目(IK05-4);青岛市重点技术创新项目(20072062)

摘　　要：为获得普通/预应力混凝土构件收缩量的简化计算方法,在素混凝土收缩量的基础上,考虑钢筋及预应力筋的影响,推导出普通/预应力钢筋混凝土构件收缩值的计算公式。对比分析表明,所建议公式的计算结果合理。为便于工程应用,给出了素混凝土早期收缩的建议值。For acquiring the simplified computational method of the normal/prestressed concrete structural shrinkage quantity, in the present paper,computational formula of the common/prestressed concrete structural shrinkage are derived on the base of the plain concrete shrinkage theory and the consideration of steel bar and prestressed bar influences. Comparative analyze indicates that the result of the formula proposed in this paper is reasonable. For the sake of convenient application, the paper offers recommended value of the plain concrete shrinkage at early-age.

关 键 词：混凝土 收缩计算 简化方法 

分 类 号：TU375[建筑科学—结构工程]