房屋建筑中,采用预制踏步板安装的楼梯,往往会因施工方法不当或因对质量控制不严,造成同一梯段内的步高或步距不均匀的质量问题,有的会出现“半步头”而影响楼梯的使用功能,见图1。现将改进后的施工方法介绍如下。安装两端简支的踏步板时,先找一块20毫米厚的木板或塑料板,根据施工图所确定的本梯段的步高和步距,制成规矩板,见图2。然后 In a house building, a staircase installed with a prefabricated tread board often causes quality problems with step height or step unevenness in the same stair section due to improper construction methods or due to poor quality control, and some will appear as “half”. Steps “” affect the use of the stairs, see Figure 1. The improved construction method is described below. When installing the simply-supported tread boards, first find a 20-mm-thick wood board or plastic board. According to the step height and stride length determined by the construction drawing, make a rule board, as shown in Figure 2. then