Source abstract
Abstract
To solve the problem that finite element analysis and calculation need to be repeated during model updates, which leads to tedious and inefficient correction work, ABAQUS (a powerful finite element software for engineering simulation) is used to develop a user-friendly graphical user interface platform for automatic completion of this update for cable-stayed bridges. In this paper, a method for establishing the benchmark finite element model of cable-stayed bridges based on ABAQUS and influence matrix (IM)-hunter prey optimization (HPO) is proposed. The method is based on the secondary development of ABAQUS to realize the modules of sensitivity analysis, influence matrix, and optimization. According to the sensitivity analysis module, the influence of the change in the finite element model parameters on the static response of a cable-stayed bridge is studied, and the cable area is used as the parameter to be corrected. The influence matrix module is used to obtain the IM of the cable area to girder displacement and cable force under a static load. The objective function is constructed by combining the measured displacement and cable force data using the optimization module, and the global optimal solution of the parameters to be corrected in the objective function is found by HPO. Finally, the solution is sent to the finite element model for correction, and the corrected displacement and cable force data are compared with the measured data. The results show that the modified calculation results obtained by this method are in good agreement with the measured results. The modified finite element model can be used as presented.
Source: crossref · Quality: baseline
Affiliations
State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University 1 , Shijiazhuang 050043, China
Hebei Key Laboratory of Diagnosis, Reconstruction and Anti-disaster of Civil Engineering 2 , Zhangjiakou 075000, China
School of Civil Engineering, Shijiazhuang Tiedao University 4 , Shijiazhuang 050043, China
Innovation Center for Wind Engineering and Wind Energy Technology of Hebei Province 3 , Shijiazhuang 050043, China
Hebei Innovation Center of Transportation Infrastructure in Cold Region 5 , Zhangjiakou 075000, China
School of Traffic and Transportation, Shijiazhuang Tiedao University 6 , Shijiazhuang 050043, China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Hebei Province · High end Talent Project of Hebei Province · Key R&D Program of Hebei Province
References (16)
Show source-provided references
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