Fundamental Study on Failure Probability and Design Values of Load and Resistance of Steel Structures

钢结构破坏概率及荷载和抗力设计值的基础研究

• 批准号: 06805041
• 负责人: KITADA Toshiyuki
• 金额: $ 0.77万
• 依托单位: Osaka City University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06805041/
• 关键词: Limit state design method; Steel Structure; Failure probability; Load; Resistance; Initial imperfection; Accident; Human error; ヒューマン・エラー; 設計値

1.Fundamental theories have been developed to some extent in three papers.2.The following research results have been obtained :(1) Design methods based on reliability theory are not proper in structures with less failure probability.(2) It is important that the ultimate strength and various limit states up to the ultimate limit states of structures are also investigated prior to the calculation of their failure probability.(3) Collapses of structures are mainly caused by unknown behaviors, extremely expected or unexpected hazards, and human errors.(4) It is necessary to develop a method to evaluate quantitatively the influence of the unknown behaviors, extremely expected or unexpected hazards, and human errors upon the failure probability.(5) The influence of the variation of yield stress on the ultimate strength is predominant compared with the variation of initial imperfection and residual stress.(6) As for yield limit state, the variation of residual stress can not be neglected.(7) A limit states design method for evaluating safety on the strength limit of existing structures has been proposed.

1.三篇论文在一定程度上发展了基础理论。 2.取得了以下研究成果：（1）基于可靠性理论的设计方法不适用于破坏概率较小的结构。（2）在计算其破坏概率之前，还必须研究结构的极限强度和直至极限状态的各种极限状态。（3）结构的倒塌主要是由未知行为、极其预期或意外的危险引起的， (4) 有必要开发一种方法来定量评估未知行为、极端预期或意外危险以及人为错误对失效概率的影响。(5) 与初始缺陷和残余应力的变化相比，屈服应力的变化对极限强度的影响占主导地位。(6) 对于屈服极限状态，残余应力的变化不能忽视。(7) 极限状态设计方法 提出了对现有结构的强度极限进行安全评估。

项目成果

江口慎介・北田俊行・中井博: "ニールセンロ-ゼ橋、および鋼製ラーメン橋脚の終局限界状態に関する基礎的研究" 土木学会年次学術講演会講演概要集. 50,1(A). 54-56 (1995)

Shinsuke Eguchi、Toshiyuki Kitada、Hiroshi Nakai：“Nielsen-Rose 大桥和钢刚架桥墩极限状态的基础研究”日本土木工程学会年度学术会议摘要 50,1(A)。 54-56（1995）

北田 俊行・中井 博・江口慎介: "鋼橋の限界状態設計法確率に関する基礎的研究" 土木学会関西支部年次学術講演会概要集. (発表予定). (1995)

Toshiyuki Kitada、Hiroshi Nakai、Shinsuke Eguchi：《钢桥极限状态设计方法的概率基础研究》日本土木工程学会关西分会年度学术讲座摘要集（待发表）。 (1995)

T.KITADA,H.NAKAI and S.EGUCHI: "Fundamental Study on Ultimate Limit State of Nielsen-Lohse Bridge and Steel Rigid Frame" Proceedings of Annual Conference of Civil Engineers, JSCE. Vol.50, No.1 (A). 54-55 (1995)

T.KITADA、H.NAKAI 和 S.EGUCHI：“Nielsen-Lohse 桥梁和钢刚架极限状态的基础研究”日本土木工程师年会论文集，JSCE。

T.KITADA,R.OMINAMI,M.DOUGAKI,K.SUGIURA and M.KUBO: "Definition of Limit States and Criteria for Them in New and Existing Steel Structures" Proceedings of Japan Conference on Structural Safety and Reliability (JCOSSAR). Vol.3. 283-290 (1995)

T.KITADA、R.OMINAMI、M.DOUGAKI、K.SUGIURA 和 M.KUBO：“新钢结构和现有钢结构中极限状态及其标准的定义”日本结构安全与可靠性会议 (JCOSSAR) 会议记录。

T.KITADA,K.SEKI,K.NISHIOKA,Y.OTOGURO,K.IWASAKI and S.YANO: "Evaluation of Load Carrying Capacity of Existing Steel Bridges Based on Limit States Design Method" Journal of Structural Engineering, JSCE. Vol.42A (to be published). (1996)

T.KITADA、K.SEKI、K.NISHIOKA、Y.OTOGURO、K.IWASAKI 和 S.YANO：“基于极限状态设计方法的现有钢桥承载能力评估”结构工程学报，JSCE。