CALCULATE LONG-TERM DEFLECTIONS ON EQUIVALENT FLEXURAL PRINCIPLE
In addition to deflections that occur immediately, reinforced concrete (RC) members are subject to added deflections that occur gradually over long periods, which is mainly due to creep and shrinkage. In this paper, the increase of cross sectional curvature creep- and shrinkage-induced of concrete is studied based on the immediate deflections and equivalent flexural principle (EFP). A formula is proposed to calculate the long-term deflections. Compared with ACI-318 and GB50010, the calculation value calculate by method of this paper is more reliable. Moreover, comparing calculation values to test data shows that the formula can predict long-term deflections well.
RC beam long-term deflection creep shrinkage
Guo-Xue Zhang Zhi-Hao Zhang Zhou Ding
Foshan University,Foshan 528000,P.R. China Foshan University,Foshan 528000,P.R. China Guangdong University of Technology,Guangzhou 510006,P.R. South China University of Technology,Guangzhou 510641,P.R. China
国际会议
长沙
英文
683-689
2009-10-26（万方平台首次上网日期，不代表论文的发表时间）