The creep impact on the performance of super-long reinforced concrete structures
In order to study the deformation of super-long structures under the influence of creep,take fully advantage of orthogonal design to make nine series reinforced concrete beams of shrinkage-compensating to deeply analyze the function performanced by creep of the reinforced concrete structure and obtain that the time-deflection curves of volume deformation and creep deformation of shrinkage-compensating reinforced concrete beams.The results show that the creep of beams develops rapidly early and the slow development of the late.The greater the expansion stress is in the early,the greater the shrinkage strain in the late,the greater the deformation of volume.So,the appropriate mixing ratio of expansive agent is given by the experiment.It provides a scientific basis for seamless design of super-long structures.
reinforced concrete beams creep experiments shrinkage-compensating creep deformation
WANG Haichao XU Zhentian LIU Wenting
School of Civil and Architectural Engineering,Shandong University of Science and Technology,Qingdao China Architecture Design and Research Institute,Beijing 100044,China
国际会议
西安
英文
592-595
2013-07-27（万方平台首次上网日期，不代表论文的发表时间）