The Study on Cracking Strength of AIJs to Release the Early-Age Stress of Mass Concrete
作者： Xiaogang Zhang , Chengqiang Wang , Shuping Wang , Feng Xing , Ronghua Zhu
DOI: 10.1155/2015/623215
关键词:
摘要: This paper aims to theoretically and numerically assess the effect of setting artificial-induced joints (AIJs) during construction period amass concrete structure release early-stage thermal stress. With respect coupling influences various factors such as size boundary AIJs, an analytical model for its cracking strength on section mass is proposed based double-parameter fracture theory. A kind hyper-finite element analysis (FEA) many array AIJs in simplified plane pate also presented by using bilinear cohesive force distribution. The results from present numerical simulation were compared those experimental data prove efficiency accuracy FEA. this study provides a simple useful tool accurately evaluate how early stress reduced. theoretical solution FEA could be significantly contributed find "just" "perfect" temperature improve design level structure.
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