欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了降低大跨桥梁抖振响应计算中由传统简单指数函数形式的脉动风相干函数引起的联合接受函数计算误差,提出了一种脉动风相干函数的理论计算方法,并基于该方法,通过引入几个额外的参数对传统相干函数模型进行修正,从而克服了由脉动风相关性引起的结构响应计算误差。为了便于工程应用,在满足精度要求的条件下,对改进模型进行了适当简化,并基于改进相干函数模型,对大跨度桥梁抖振分析中的联合接受函数进行计算。结果表明：与传统计算方法相比,基于改进相干函数的联合接受函数的计算误差可降低约35%。
英文摘要：
In order to modify the uncertainty of joint acceptance function in buffeting response estimation induced by the traditional coherence model of wind fluctuation, represented in simple exponential form, an improved coherence model for theoretical method was proposed through the introduction of some extra parameters. The proposed coherence model successfully remedied the limitations of the traditional exponential coherence model. For engineering application, a simplified version with satisfactory accuracy was also obtained. Based on the improved coherence model, the joint acceptance functions in buffeting analysis of long span bridge were studied. The results show that the error margin of joint acceptance function based on improved coherence model decreases by 35 %, compared with traditional exponential coherence model.
同期刊论文项目
同项目期刊论文
期刊信息
位置：