为了增添节日欢庆的气氛,建设单位往往要求施工单位在新建楼房的女儿墙压顶中预留插管,以供安装彩旗使用。由于该做法没有专门的设计,常用的方法就是在浇筑女儿墙压顶混凝土时,将钢管一端封堵好,按照一定间距直接埋设在压顶里(图1),需要时将穿好彩旗的竹竿插入钢管内即可。这种做法其实存在许多弊病,比如穿彩旗的竹竿泡水易腐烂,断在钢管内的旗杆部分不易取出,钢管内的雨水无法流出等。针对上述情况做出如下改进(图2)。(1)浇筑女儿墙压顶混凝土时,在压顶内侧按彩旗 In order to enhance the festive atmosphere, the construction unit often requires the construction unit to reserve the intubation in the top of the wall of the daughter of the newly-built building for the purpose of installing colorful flags. Due to the lack of special design, the commonly used method is to seal the steel pipe at one end of the pipe when it is poured, and then directly lay the pipe at a certain distance (Figure 1). If necessary, insert the colored bamboo rod into the steel pipe Can be within. In fact, there are many shortcomings of this approach, such as wearing colorful flagpole soaked perishable, broken in the steel part of the flagpole is not easy to remove the pipe can not flow out of the rain. In view of the above situation to make the following improvements (Figure 2). (1) Pouring the daughter of the wall pressure concrete, pressing the inner flag press