论文部分内容阅读
玻璃钢夹砂管在土木水利工程领域得到了愈来愈广泛的应用,但现有的埋地管道地震响应分析模型大多不考虑管-土动力相互作用,且多针对均质材料管道,无法应用于具有明显层状复合材料结构特征的玻璃钢夹砂管。基于玻璃钢夹砂管的层状复合材料结构特征,建立了完整的埋地玻璃钢夹砂管地震响应分析模型,在数值分析模型中,考虑了管-土间复杂的动力相互作用,以及地震散射波从有限域向无限域的传播。算例分析表明,所建立的埋地玻璃钢夹砂管地震响应分析模型可合理地分析埋地玻璃钢夹砂管在地震荷载作用下的动力响应。
FRP pipe has been more and more widely used in civil engineering, but most of the existing buried pipe seismic response analysis models do not consider the pipe-soil dynamic interaction, and more for the homogeneous material pipe, can not be applied to Fiberglass Reinforced Sand Pipe with Structural Characteristics of Laminated Composite Materials. Based on the structural characteristics of FRP sandwich composite materials, a complete seismic response analysis model of CFRP pipe was established. In the numerical analysis model, the complex dynamic interaction between pipe and soil and the scattering of seismic waves Propagation from finite field to infinite field. The case study shows that the seismic response analysis model of buried FRP pipe can reasonably analyze the dynamic response of FRP pipe under earthquake load.