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一、问题的提出混凝土结构物的裂缝问题是带有普遍性的工程问题。然而混凝土结构物裂缝产生的原因又是极其复杂的。在土建工程中,一般现浇的连续墙式结构物、地下构筑物及设备基础等,无论在施工过程中或投产使用期间,由于温度应力和收缩应力的共同作用,往往使钢筋混凝土结构产生裂缝,给工程带来危害。因此,如何控制这类结构物的温度变形裂缝,是土建工程界的一项重大课题。
First, the issue of cracks in concrete structures is a universal engineering problem. However, the cause of cracks in concrete structures is extremely complex. In civil engineering, generally in-situ wall-mounted continuous-wall structures, underground structures, and equipment foundations often cause cracks in reinforced concrete structures due to the combined effects of temperature stress and shrinkage stress during construction or during operation. Harm to the project. Therefore, how to control the temperature deformation cracks of such structures is a major issue in the civil engineering community.