步架 meaning in English
horizontal spacing between purlins
Examples
- On the scaffolding operation platform stairs , safety way , entrance has overspread by wooden board , should set up handrail
3操作层各步架上、安全通道、入口走道均满铺脚手板，设置安全扶手 - Operation platform : all the frames on construction layer and shuttering layer below without backout will be put with scaffolding plank as construction work platform
3操作平台：施工层及下面相邻未拆模板层每步架上均满铺脚手板做为施工操作平台。