现浇混凝土的裂缝问题是建筑施工中长期存在的质量通病,主要可划分为因混凝土构件受荷载作用、承载力不足而产生的裂缝(以下简称“荷载裂缝”)和因混凝土变形效应而产生的裂缝(以下简称“变形效应裂缝”)两大类。前者会直接导致结构的破坏甚至倒塌,是不允许出现的;后者则不一定会直接影响混凝土的承载力,因此施工技术人员往往对此类裂缝重视程度不够。由于人们对建筑知识的不了解,无论是荷载裂缝还是变形效应裂缝,都会给居住者带来恐惧感。笔者通过近年来的施工实践和研究,认为变形效应裂缝应引起施 The problem of cracks in cast-in-place concrete is a long-standing problem of common quality in construction. It can be mainly divided into cracks (hereinafter referred to as “load cracks”) due to load and insufficient bearing capacity of concrete members and deformation caused by concrete deformation The resulting cracks (hereinafter referred to as “deformation effect crack ”) two categories. The former will directly lead to structural damage or collapse, is not allowed to appear; the latter does not necessarily have a direct impact on the bearing capacity of concrete, so construction technicians often pay insufficient attention to such cracks. Because people do not understand the building knowledge, whether it is load cracks or deformation effect cracks, will give residents fear. In recent years, the author through the construction practice and research, that the deformation effect cracks should cause Shi