[1]郭琦,贺拴海..基于全寿命理念的公路桥梁钢结构抗疲劳设计[J].郑州大学学报(工学版),2007,28(03):33-36.[doi:10.3969/j.issn.1671-6833.2007.03.009]
　GUO Qi,He Jihai.Anti-fatigue design of highway bridge steel structure based on the concept of full life[J].Journal of Zhengzhou University (Engineering Science),2007,28(03):33-36.[doi:10.3969/j.issn.1671-6833.2007.03.009]

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基于全寿命理念的公路桥梁钢结构抗疲劳设计()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

28卷

期数:

2007年03期

页码:

33-36

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Anti-fatigue design of highway bridge steel structure based on the concept of full life

作者:

郭琦; 贺拴海.

长安大学,桥梁与隧道陕西省重点实验室,陕西,西安,710064, 长安大学,桥梁与隧道陕西省重点实验室,陕西,西安,710064

Author(s):

GUO Qi; He Jihai

关键词:

钢结构;  钢混叠合梁;  疲劳抗力;  全寿命设计

Keywords:

Steel structure;  Steel mixed laminated beam;  fatigue resistance;  Full-life design

DOI:

10.3969/j.issn.1671-6833.2007.03.009

文献标志码:

A

摘要:

针对公路桥梁中周期性可变荷载的特点,依据现行《公路桥涵设计通用规范》(JTG D62-2004)给出公路桥梁钢结构疲劳应力幅的计算方法.按构造重要性和可替换性的差异,根据全寿命设计思想,在铁道部科学研究院长期大量试验的基础上,提出将容许应力幅的保证率作为变量的疲劳抗力方程,达到设计时综合考虑施工及桥梁服役整个寿命期的目的.以一座公路悬索桥钢混叠合加劲梁疲劳计算作为算例,通过与其它规范方法的比较,证明本方法的可靠性.

Abstract:

According to the characteristics of periodic variable load in highway bridges, the calculation method of fatigue stress amplitude of steel structure of highway bridge is given according to the current "General Code for Highway Bridge and Culvert Design" (JTG D62-2004). According to the difference in structural importance and replaceability, according to the whole life design idea, on the basis of long-term and extensive tests of the Research Institute of Science and Technology of the Ministry of Railways, a fatigue resistance equation with the guaranteed rate of allowable stress amplitude as a variable is proposed, so as to achieve the purpose of comprehensively considering the entire life of construction and bridge service during the design. Taking the fatigue calculation of a steel mixed stiffener beam of a highway suspension bridge as an example, the reliability of the proposed method is proved by comparison with other normative methods.

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