From the Angle of concrete construction, this article analyzed the cause, prevention of non-structural crack in concrete construction, and treatment method with epoxy grout for the harmful cracks.

本文简述了混凝土结构裂缝现状，分析了其产生原因，提出了混凝土结构裂缝的预防以及控制策略。

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Based on the structural non load effect, the causes of common concrete structural crack in tall buildings are analysed. The control method of crack development is discussed.

从结构的非荷载效应着眼，通过对目前高层建筑砼结构中常见的裂逢成因分析，提出控制裂缝扩展的相应对策。

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The main causes of bottom flat crack are analyzed, mainly including radial force generated by closure strands stretching in middle span , non-structural elements and construction effects , etc.

分析了导致底板崩裂的主要原因，主要包括跨中合龙束张拉时产生的径向力作用、非预应力钢筋构造因素及施工影响等；

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