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一、概述截面或构件的设计,应使所设计的结构构件在使用期内,力求在经济合理前提下满足以下四项功能要求: (1)能承受在施工和使用期内可能出现的各种作用[作用是指荷载与变形(外加变形或约束变形)的总称]; (2)在正常使用期内具有良好的工作性能; (3)具有足够的耐久性; (4)在偶然事件出现时及发生后。能保持必要的整体稳定性。这四项功能要求中,(1)、(4)两项关系到人身安全,要用结构的安全性来描述;第(2)
First, an overview of the cross-section or component design should make the design of structural components within the service life, and strive to meet the following four functional requirements under the premise of economic rationality: (1) can withstand the construction and use of the various possible Role [action refers to the general term for load and deformation (plus deformation or restraint deformation)]; (2) has good working performance during normal use; (3) has sufficient durability; (4) in the event of an accident And after it happened. Can maintain the necessary overall stability. The four functional requirements, (1), (4) two related to personal safety, to use the structure of security to describe; (2)