V2EX serviceability limit state

Serviceability Limit State

释义 Definition

使用性极限状态(SLS):结构在正常使用条件下,为保证功能、舒适与外观而设定的性能限值。常控制的现象包括挠度过大、裂缝过宽、振动过强、渗漏或影响正常使用的变形等。(区别于承载力/安全相关的“极限承载状态”)

发音 Pronunciation (IPA)

/srvsblti lmt stet/

例句 Examples

The beam was designed to satisfy the serviceability limit state.
这根梁的设计满足使用性极限状态要求。

To control cracking and deflection under frequent load combinations, the engineer checked the serviceability limit state according to the code.
为在频遇荷载组合下控制裂缝与挠度,工程师按规范验算了使用性极限状态。

词源 Etymology

该术语由三部分构成:serviceability(可使用性、适用性,源自 service “使用/服务” + -able “能够……” + -ity 名词后缀)+ limit(界限)+ state(状态)在结构工程“极限状态设计(limit state design)”体系中,用来与 ultimate limit state(承载力/破坏相关)相对,强调“能否好用、用得舒服、功能是否受影响”。

相关词 Related Words

文献与著作中的用例 Literary / Notable Works

  • EN 1990 Eurocode: Basis of Structural Design(《欧码 EN 1990:结构设计基础》)
  • EN 1992-1-1 Eurocode 2: Design of concrete structures(《欧码2:混凝土结构设计》)
  • AASHTO LRFD Bridge Design Specifications(《AASHTO LRFD 桥梁设计规范》)
  • fib Model Code for Concrete Structures 2010(《fib 2010 混凝土结构模型规范》)
  • ISO 2394: General principles on reliability for structures(《ISO 2394:结构可靠性通则》)
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