玻璃钢/复合材料 ›› 2016, Vol. 0 ›› Issue (12): 70-74.

• 应用研究 • 上一篇    下一篇

动荷载作用下玻璃钢夹砂管力学响应分析

陈兆南1,魏连雨1*,郑彦军2,石华旺1   

  1. 1.河北工业大学土木与交通学院,天津300401;
    2.承德市交通运输局,承德067400
  • 收稿日期:2016-07-11 出版日期:2016-12-31 发布日期:2016-12-31
  • 通讯作者: 魏连雨(1957-),男,教授,主要从事道路与交通方面的研究,wly57@126.com。
  • 作者简介:陈兆南(1991-),男,硕士研究生,主要从事交通运输工程与材料方面的研究。
  • 基金资助:
    河北省高等学校科学技术研究项目(ZD2014099)

MECHANICAL RESPONSE ANALYSIS OF GLASS FIBER REINFORCED PLASTIC MORTAR PIPE UNDER DYNAMIC LOAD

CHEN Zhao-nan 1, WEI Lian-yu 1*, ZHENG Yan-jun2, SHI Hua-wang1   

  1. 1.School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China;
    2.Chengde City Transport Department, Chengde 067400, China
  • Received:2016-07-11 Online:2016-12-31 Published:2016-12-31

摘要: 为分析不同动荷载作用下埋地玻璃钢夹砂管的力学响应情况,选取22 t振动压路机,39.4 t和60.4 t重型工程运料车,测试施工期浅埋玻璃钢夹砂管的振动速度时间曲线,并采用快速傅里叶变换方法确定玻璃钢夹砂管振动主要频率和幅值。研究表明,22 t振动压路机强震最大振动速度和幅值大于重型工程运料车的振动响应值,与实际压路机用大振动力强震吻合,而三种动荷载对埋地管涵的力学响应均较小,说明管涵刚度高,故施工阶段管顶浅埋土压实完后允许重型工程运料车通行,从而为玻璃钢夹砂管的施工和推广应用提供理论依据。

Abstract: In order to analyze the mechanical response of the buried FRPM pipe under different dynamic loads, we selected a 22 t vibration roller and 39.4 t and 60.4 t heavy engineering trucks to test the vibration velocity time curves of shallow buried FRPM pipe during construction, and applied the FFT method to determine vibration frequency and amplitude of the FRPM pipe. The results show that when 22 t vibration roller is strong earthquake, the maximum vibration velocity and amplitude are greater than the vibration response value of the heavy engineering trucks, which agrees with the actual roller with the large pressure. But the three dynamic loads have low influence on culvert mechanics response of buried pipe. The result explains the high stiffness of the pipe, and provides theoretical basis for the construction and application of the FRPM pipe.

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