郭珺, 唐贞云, 李易, 李振宝. 基于子结构试验的土-结相互作用实现研究[J]. 工程力学, 2017, 34(增刊): 214-219. DOI: 10.6052/j.issn.1000-4750.2016.04.S045
引用本文: 郭珺, 唐贞云, 李易, 李振宝. 基于子结构试验的土-结相互作用实现研究[J]. 工程力学, 2017, 34(增刊): 214-219. DOI: 10.6052/j.issn.1000-4750.2016.04.S045
GUO Jun, TANG Zhen-yun, LI Yi, LI Zhen-bao. THE SIMULATION OF SOIL STRUCTURE INTERACTION BACED ON SUBSTRUCTURING TESTING[J]. Engineering Mechanics, 2017, 34(增刊): 214-219. DOI: 10.6052/j.issn.1000-4750.2016.04.S045
Citation: GUO Jun, TANG Zhen-yun, LI Yi, LI Zhen-bao. THE SIMULATION OF SOIL STRUCTURE INTERACTION BACED ON SUBSTRUCTURING TESTING[J]. Engineering Mechanics, 2017, 34(增刊): 214-219. DOI: 10.6052/j.issn.1000-4750.2016.04.S045

基于子结构试验的土-结相互作用实现研究

THE SIMULATION OF SOIL STRUCTURE INTERACTION BACED ON SUBSTRUCTURING TESTING

  • 摘要: 传统的土-结相互作用试验由于加载系统的出力和尺寸限制,目前只能进行大比例缩尺试验,且对于大跨空间结构、桥梁等长大型结构考虑土-结相互作用的地震作用性能,目前的试验设备也存在局限。而实时动力子结构试验方法将试验对象不可建模部分在实验室进行物理试验,剩余部分作为数值模型进行建模,二者保证同步可对整体试验对象性能进行模拟,克服了传统土-结相互作用试验研究的不足。该文应用动力子结构试验方法,对 土-结相互作用问题进行了研究,建立了整体试验模型及混合动力子结构试验模型,并通过试验进行了验证。利用该文发展的子结构试验技术,分别对多跨连续刚构桥梁和钢筋混凝土高墩大跨度刚构桥梁考虑土-结相互作用抗震性能进行了试验研究,试验结果表明该方法存在一定应用价值。

     

    Abstract: Due to the limitation of output and size of loading systems, traditional soil structure interaction testing can only be used in the reduced scale models. Experimental facilities are limited for testing the seismic behavior of soil structure interactions for large and long structures such as long-span spatial structures and bridges. In Real-time Dynamic Substructure (RTDS) testing, the part which cannot be modeled is tested physically and the rest part is simulated numerically. The two parts work together so that it can simulate the whole structure. In this paper, the soil structure interaction was simulated through RTDS. A whole structure model and a hybrid dynamic substructure model were established and verified experimentally and numerically. The seismic behavior of continuous rigid frame bridges and long-span continuous rigid frame high pier bridges with consideration of the soil structure interaction was discussed respectively, using the substructuring testing methods developed by this paper. The results demonstrate the value of the method.

     

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