在独立的柱顶上安装屋架系高空作业,困难多,又很危险。为此,过去常用木材或楠竹绑扎一个临时脚手,但颇为费工、费料。钳工秦公和、李克静,结合屋架安装时的具体条件,提出利用吊车梁先在柱端安装轻便脚手台的建议(图5)。这项建议已经普遍 Installing a roof truss on a separate column top is a high-altitude operation that is difficult and dangerous. For this reason, in the past, the use of wood or bamboo to bind a temporary footer was rather laborious and time-consuming. The fitters Qin Gonghe and Li Kejing, in light of the specific conditions during the installation of the truss, proposed the use of crane beams to install the lightweight scaffolding at the column end first (Figure 5). This proposal is already common