Abstract

For the convenience of construction and prevention of cracking, in the period of construction, the massive concrete structures generally are divided into many blocks by contraction joints which are grouted after cooling of the structure. Before grouting of joints, the thermal stresses in the structure are actually the thermal stresses in the concrete blocks. After grouting of joints, the concrete blocks are combined into a monolithic structure. Thus, the thermal stresses in the period of operation are the stresses of the global structure.

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