采用木模制作的构件很容易出现掉角现象,一般发生在阳角部分,而且大多是沿着构件主筋外面的角部,从主筋处发生裂缝或剥离。为什么会发生掉角现象呢?这是因为在钢筋混凝土梁柱刚浇灌完后不久,混凝土强度还很低的时候,在混凝土构件的角部,必然受到了向外作用的力,使构件沿主筋外面的最薄弱断面发生裂缝,如 The components made of wood molds are prone to falling angle phenomenon, which usually occurs in the corners of the sun, and most of them are along the outside corners of the main members of the components. Cracks or peeling occur from the main ribs. Why is there a phenomenon of falling angle? This is because when the strength of the concrete is very low shortly after the reinforced concrete beam has been poured, at the corners of the concrete structure, it will inevitably be subjected to an outward acting force, making the member along the outside of the main tendon. Cracks occur in the weakest sections, such as