一个烟囱爬梯的翻译? include design of complete support and access steel. Vendor shall provide fabrication drawings for all structural steel supports and accesses. Estimated weights of heavy structural, light structural, and access steel (handrails, platforms, stairs) must be included. Access to all ports, lights, etc. must be provided. Access from grade is to be by stairs, no ladders are allowed. Metric equivalent of the following to be used: Grating and stair treads must be welded bar type, 1-1/4” x 3/16” bearing bar. Handrail must be 1” diameter top and mid-rail with 2-1/2” x 1/2” bar posts on 5’-0” maximum centers. Toe plate must be 4” x 1/4”. Structural and miscellaneous steel shall be cleaned to SSPC-SP1, 2 and 3 or 6 and painted with one coat of zinc chromate primer and one coat of grey enamel with a dry film thickness of 3 mils minimum. Grating and stair treads shall receive Vendor’s standard black dip coat or galvanized. Access platforms, stairs, ladders and etc. shall be complaint with all local safety requirements. 主要是加粗一句,翻不通啊。求助各位大侠 查看更多2个回答 . 4人已关注