Nonlinear Optimization of Orthotropic Steel Deck System Based on Response Surface Methodology
作者机构：Intelligent Transportation System Research CenterSoutheast UniversityNanjing 210096China CCCC Highway Consultants Co.Ltd.Beijing 100084China Department of Civil EngineeringTsinghua UniversityBeijing 100084China
出 版 物：《Research》 (研究（英文）)
年 卷 期：2020年第2020卷第1期
页 面：28-49页
核心收录：
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
摘 要：The steel bridge deck system,directly subjected to the vehicle load,is an important component to be considered in the optimization design of the *** to its complex structure,the design parameters are coupled with each other,and many fatigue details in the system result in time-consuming calculation during structure *** view of this,a nonlinear optimization method based on the response surface methodology(RSM)is proposed in this study to simplify the design process and to reduce the amount of calculations during *** optimization design of the steel bridge deck system with two-layer pavement on the top of the steel deck plate is taken as an example,the influence of eight structural parameters is *** Box-Behnken design is used to construct a sample space in which the eight structural parameters can be distributed evenly to reduce the calculation *** finite element method is used to model the mechanical responses of the steel bridge deck *** the regression analysis by the RSM,the explicit relationships between the fatigue details and the design parameters can be obtained,based on which the nonlinear optimization design of the bridge deck system is *** influence of constraint functions,objective functions,and optimization algorithms is also *** method proposed in this study is capable of considering the influence of different structural parameters and different optimization objectives according to the actual needs,which will effectively simplify the optimization design of the steel bridge deck system.
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