许家婧,叶浩天,殷浩天,曹 慧,张邵峰
许家婧,叶浩天,殷浩天,等.钢筋混凝土构件疲劳设计研究[J].混凝土与水泥制品,2022(7):50-54.
XU J J,YE H T,YIN H T,et al.Study on Fatigue Design Methods of Reinforced Concrete Components[J].China Concrete and Cement Products,2022(7):50-54.
钢筋混凝土构件疲劳设计研究
许家婧,叶浩天,殷浩天,曹 慧,张邵峰
许家婧,叶浩天,殷浩天,等.钢筋混凝土构件疲劳设计研究[J].混凝土与水泥制品,2022(7):50-54.
XU J J,YE H T,YIN H T,et al.Study on Fatigue Design Methods of Reinforced Concrete Components[J].China Concrete and Cement Products,2022(7):50-54.
摘 要:对比分析了国内外混凝土结构设计规范中关于疲劳设计的规定后发现:美国混凝土协会ACI 215R—74《疲劳荷载下混凝土结构设计规定》、日本土木工程学会JSCE 2007《混凝土结构设计规范》、我国GB 50010—2010《混凝土结构设计规范(2015年版)》均采用容许应力法进行钢筋混凝土构件疲劳设计;美国公路运输协会AASHTO LRFDUS—2017《高速公路桥梁设计规范》和欧洲CEB-FIP(2010)《混凝土结构规范》则采用疲劳极限状态设计方法,考虑荷载和抗力系数,以结构使用寿命不超过失效寿命为原则进行钢筋混凝土构件疲劳设计。在总结各国规范基础上,提出了钢筋混凝土构件的疲劳设计基本步骤,并进行了算例分析。
Abstract: Fatigue design codes of concrete structures from different countries were summarized and compared. It is found that the fatigue design methods are different. The American Concrete Institute standard ACI 215R—74 Considerations for Design of Concrete Structures Subjected to Fatigue Loading, Japan Society of Civil Engineers standard JSCE 2007Standard Specification for Concrete Structures and Chinese standard GB 50010—2010 Code for Design of Concrete Structures are based on allowable stress method. American Association of State Highway and Transportation Officials standard AASHTO LRFDUS—2017 Bridge Design Specifications and European Concrete Commission and International Prestressed Concrete Association standard CEB-FIP(2010) Model Code for Concrete Structures are based on fatigue limit state method, and the load and resistance coefficient are considered, and the fatigue design of reinforced concrete components is carried out on the principle that the service life of the structure does not exceed the failure life. In addition, the fatigue design procedures and the calculation example are provided.
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