Safety control method for reusing steel mixed arrangement frame structure workshop
There exist significant disparities between the idealized finite element model created from design drawings and the actual conditions during the renovation of the reinforced concrete shelving structure plant.Relying on this for construction safety simulations poses substantial risks in guiding on-site construction.In the event of a collapse due to structural instability,the resulting losses can be immeasurable.To guarantee structural safety during the reconstruction of the reinforced concrete shelving plant,this paper introduces a simulation method for construction safety based on a multi-objective optimization algorithm.This method is proposed after a thorough comparison and analysis of various finite element model modification techniques.Initially,the parameters requiring correction are identified through sensitivity analysis.A multi-objective function relationship is then established by integrating static force,frequency,and structural mode.The improved NSGA-Ⅲ algorithm is employed for multi-objective optimization of the objective function to obtain optimized corrections for structural parameters.Subsequently,a benchmark finite element model is created using MIDAS/Gen.Subsequently,a construction process preview is conducted based on the benchmark model,guiding on-site construction safety measures.Finally,through comparing and analyzing the degree of conformity between simulated and measured values,we can assess the impact of enhancing the accuracy of construction safety analysis before and after model modification.This verification process ensures the reliability of the modified model and guarantees structural safety throughout the construction process.The research findings highlight that this approach represents a cohesive integration of sensitivity analysis,static and dynamic testing methods,and multi-objective optimization algorithms.The model's reliability has been confirmed through practical engineering cases.It effectively captures the essential path and logical connections in correcting finite element models.Additionally,it introduces innovative perspectives for exploring finite element model corrections and enhancing construction safety protocols for recycled construction structures.
safety engineeringregeneration and utilizationmulti-objective optimizationmodel correctionsafety control
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