V2EX limit state design

Limit State Design

释义 Definition

极限状态设计(法):一种结构设计方法,通过分别校核结构在不同“极限状态”下是否满足要求,通常包括承载能力极限状态(防止破坏、倒塌)和正常使用极限状态(控制挠度、裂缝、振动等),并常配合分项系数/荷载与抗力折减系数来保证安全与可靠性。该术语在土木/结构工程规范中非常常见。

发音 Pronunciation (IPA)

/lmt stet dzan/

例句 Examples

The bridge was designed using limit state design.
这座桥采用极限状态设计方法进行设计。

Using limit state design, the engineer checked both ultimate strength and serviceability under factored load combinations to meet the code’s reliability targets.
采用极限状态设计,工程师在分项后的荷载组合下同时验算了承载能力与正常使用性能,以满足规范的可靠性目标。

词源 Etymology

limit”源自拉丁语 limes(边界、界限),“state”来自古英语 stāt(状态),“design”与拉丁语 designare(标示、规划)有关。“Limit state design”作为工程术语在20世纪结构工程发展中逐渐固定,用来表达“以达到或不超过某些极限状态”为核心的设计思想,并与可靠度设计理念密切相关。

相关词 Related Words

文献与著作 Literary / Notable Works

  • EN 1990: Eurocode Basis of Structural Design(《欧码:结构设计基础》):系统阐述极限状态设计框架与可靠度要求。
  • **ACI 318 (Building Code Requirements for Structural Concrete)**:以强度设计/极限状态思路进行混凝土结构设计规定。
  • **AS 5100 (Bridge Design)AS/NZS 1170 (Structural design actions)**:在桥梁与作用效应取值中广泛采用极限状态设计体系。
  • Mosley, Bungey & Hulse, Reinforced Concrete Design:教材中以极限状态法讲解钢筋混凝土构件设计。
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