为有利于施工,现浇混凝土墙体多采用大模板施工。用于连接两片夫模板并保持内、外模板间距的模板拉杆,有圆杆式、螺母式和板条式3种。多数施工单位采用圆杆式拉杆,因为这种拉杆比另外两种方便,实用,简单。见图1。但在使用中也存在一定的问题,我们经反复探索和改进,使改进后的拉杆比传统 To facilitate the construction, cast-in-place concrete walls mostly use large formwork construction. Two kinds of template rods are used to connect two pieces of template and maintain the spacing between the inner and outer templates. There are three kinds of template rods: round rod type, nut type and slat type. Most construction units use round rods because they are more convenient, practical and simple than the other two. see picture 1. However, there are also certain problems in use. We have repeatedly explored and improved the improved rods