基于灰色关联法的绿色节能地铁上盖建筑参数优化研究

Superstructure Parameter Optimization of Green and Energy-saving Subway based on Grey Correlation Method

由于城市土地资源越来越紧张,其中地铁建设用地面积较大,地铁上盖建筑能够有效地提高城市用地效率,然而,地铁运行频繁会引发地铁上盖建筑结构产生振动,降低建筑结构的稳定性。针对这一问题,提出了基于灰色关联法的绿色节能地铁上盖建筑参数优化研究。首先,在地铁上盖建筑中布设监测点位,采用振动测试仪监测振源变化;其次,采用灰色关联法建立绿色节能地铁上盖建筑模型,获取建筑参数的关联度;再次,计算上盖建筑参数的权重值,得出参数的客观权重与风险特征;最后,设置隔振支座,优化上盖建筑参数。实验证明,经过参数优化的地铁上盖建筑框架刚度与侧向刚度较好,整体结构具有较高的抗侧力性能。

As urban land resources are becoming more and more tense,the subway construction area is relatively large,and the superstructure of the subway can effectively improve the efficiency of urban land use.However,the frequent operation of the subway will cause vibration of the superstructure of the subway and reduce the stability of the building structure.Aiming at this problem,this paper proposes a study on parameter optimization of green and energy-saving subway superstructure based on grey relational method.First,monitoring points in the subway superstructure are set up,and a vibration tester are used to monitor the change of vibration source.The grey correlation method is introduced to establish a green and energy-saving subway superstructure model to obtain the correlation degree of building parameters.The weight value of the superstructure parameters is calculated,and the objective weight and risk characteristics of the parameters are obtained.Finally,the vibration isolation bearing is set to optimize the parameters of the superstructure.Experiments show that the frame stiffness and lateral stiffness of the subway superstructure optimized by parameters are better performed,and the overall structure has higher lateral force resistance performance.