传统的变形缝(伸缩缝、沉降缝、防震缝)在外墙外侧一般是用26号镀锌铁皮覆盖,铁皮的两边伸入外墙抹灰层中,伸入抹灰层的长度为50～100mm不等。外墙抹灰层厚度一般为18～20mm。抹灰层覆盖铁皮并延伸至变形缝两边缘处断槎。这种形式的优点是:封闭较严,只外露变形缝宽度处铁皮。但 The traditional deformation joints (expansion joints, settlement joints, shock seams) outside the outer wall is generally used on the 26th galvanized iron cover, both sides of the metal skin into the plaster layer, extending into the plaster layer length of 50 ~ 100mm Wait. Exterior plaster layer thickness is generally 18 ~ 20mm. The plaster layer covers the metal skin and extends to both edges of the deformation seam. The advantages of this form are: closed more strict, only the width of exposed deforming seam metal. but