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Bridge steels are specified by strength, toughness at the design temperature and, where relevant, through-thickness properties or weathering resistance. Material certificates (for example inspection certificates of type 3.1 under EN 10204) provide traceability from the mill to the finished member.
The grades and certificate types required for a project are set by its specification.
本内容为一般性技术信息，不能替代针对具体项目的结构设计。结构设计必须由合格工程师依据适用规范和主管部门的要求完成或批准。