Core contents of the standard: First, design requirements, clarifying the design principles, load requirements, structural forms and other design requirements of steel structure engineering of elevator installation; Second, construction requirements, stipulating the construction requirements such as steel structure processing, transportation, installation and welding; Third, detailed acceptance items, specifying in detail the acceptance items, methods and judgment standards of steel structure engineering, including raw material inspection, welding quality inspection, dimensional deviation inspection, etc.; Fourth, safety requirements, clarifying the safety protection requirements and seismic requirements of steel structure engineering; Fifth, standardized acceptance documents, unifying the content and format requirements of steel structure engineering acceptance documents.