[1]姚继涛,王枭雄,杨 成.基于设计值法的结构可靠性设计实用性研究[J].西安建筑科技大学学报(自然科学版),2024,56(04):475-482.[doi:10.15986/j.1006-7930.2024.04.001]
　YAO Jitao,WANG Xiaoxiong,YANG Cheng.Practical study of structural reliability design based on design value method[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2024,56(04):475-482.[doi:10.15986/j.1006-7930.2024.04.001]
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基于设计值法的结构可靠性设计实用性研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
56
期数:
2024年04期
页码:
475-482
栏目:
出版日期:
2024-08-28

文章信息/Info

Title:
Practical study of structural reliability design based on design value method
文章编号:
1006-7930(2024)04-0475-08
作者:
姚继涛1; 2; 王枭雄1; 2; 杨 成1; 2
(1.西安建筑科技大学 土木工程学院,陕西 西安 710055; 2.西安建筑科技大学 结构工程与抗震教育部重点实验室,陕西 西安 710055)
Author(s):
YAO Jitao1; 2; WANG Xiaoxiong1; 2; YANG Cheng1; 2
(1.School of Civil Engineering, Xi'an Univ. of Arch. & Tech., Xi'an 710055, China; 2.Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education(XAUAT), Xi'an 710055, China)
关键词:
分项系数法;  设计值法;  灵敏度系数;  实用设计表达式
Keywords:
partial factors method;  design value method;  sensitivity factor;  practical design expressions
分类号:
TU318
DOI:
10.15986/j.1006-7930.2024.04.001
文献标志码:
A
摘要:
目前,结构设计主要采用基于概率的分项系数法,而随着材料强度、施工工艺、设备性能的改善以及荷载作用的变化,该法在使用过程中因分项系数的取值固定而缺乏灵活性、通用性、并且可靠度控制精度不足.为此,国际上提出了设计值法.该法可从根本上解决目前设计方法的缺陷,但仍缺乏足够的工程实用性,尚未全面推广.鉴于此,根据工程设计习惯,以结构可靠度理论和设计值法为基础,建立基于设计值法的实用设计表达式,并结合工程实际给新的设计表达式选取最优的灵敏度系数,从而建立新的实用性设计值法的应用研究理论.结果表明,新的实用设计值法在工程应用中提高了可靠度控制精度和实用性.
Abstract:
At present, the design of structures mainly adopts the probability based partial coefficient method. However, with the improvement of material strength, construction technology, equipment performance, and changes in load effects, this method lacks flexibility, universality, and reliability control accuracy due to the fixed values of partial coefficients in the application process. For this reason, the design value method is proposed internationally. The method can fundamentally solve the defects of the current design method, but it still lacks sufficient engineering practicability and has not been fully promoted. In view of this, according to the current engineering design habits, a practical design expression based on the design value method is established on the basis of the structure reliability theory and the current design value method, and the optimal sensitivity coefficients are selected for the new design expressions in combination with engineering practice, so as to establish the application research theory of the new practical design value method. The results show that the new practical design value method improves the reliability control accuracy and practicality in engineering applications.

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相似文献/References:

[1]姚继涛,罗张飞,程凯凯,等.既有结构可靠性评定的设计值法[J].西安建筑科技大学学报(自然科学版),2016,48(01):18.[doi:10.15986/j.1006-7930.2016.01.003]
　YAO Jitao,LUO Zhangfei,CHENG Kaikai,et al.Design value method of assessing the existing structural reliability[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2016,48(04):18.[doi:10.15986/j.1006-7930.2016.01.003]

备注/Memo

备注/Memo:
收稿日期:2023-05-31修回日期:2024-05-27
基金项目:国家自然科学基金(51278401)
第一作者:姚继涛(1965—),男,博士,教授,博导,主要研究方向为工程结构可靠性.E-mail:yaojitao1224@163.com
通信作者:王枭雄(1999—),男,硕士生,主要从事工程结构可靠性设计方面研究.E-mail:1931853680@qq.com
更新日期/Last Update: 2024-08-28