复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (3): 5-10.

• 基础研究 •    下一篇

CFRP-OFBG板嵌入式加固钢筋混凝土梁荷载效应计算分析

邓朗妮, 谢宏*, 刘阳, 马晋超   

  1. 广西科技大学土木建筑工程学院,柳州545006
  • 收稿日期:2019-09-26 出版日期:2020-03-28 发布日期:2020-03-28
  • 通讯作者: 谢宏(1993-),男,硕士研究生,研究方向为结构健康监测及加固修复,xhong911@foxmail.com。
  • 作者简介:邓朗妮(1977-),女,博士,教授,研究方向为结构健康监测及加固修复。
    本文作者还有秦美玲。
  • 基金资助:
    国家自然科学基金项目(51568008);广西科技大学研究生教育创新计划项目(GKYC201712);广西大学生创新创业训练计划项目 (201810594219)

LOAD EFFECT CALCULATION AND ANALYSIS OF CFRP-OFBG PLATE EMBEDDED REINFORCED CONCRETE BEAM

DENG Lang-ni, XIE Hong*, LIU Yang, MA Jin-chao   

  1. School of Civil Engineering and Architecture, Guangxi University of Science and Technology,Liuzhou 545006, China
  • Received:2019-09-26 Online:2020-03-28 Published:2020-03-28

摘要: CFRP-OFBG板具备良好的监测性能,其监测数据可用于计算分析加固结构的荷载效应。利用平截面假定及材料应力应变本构关系进行计算推导,提出一种基于CFRP-OFBG板监测应变的加固梁荷载计算方法。采用4根CFRP-OFBG板嵌入式加固钢筋混凝土梁的抗弯承载力试验对该计算方法进行验证,结果表明:计算值与试验值较为吻合,此法用于分析加固梁的实时荷载效应是可行的。

关键词: CFRP-OFBG板, 钢筋混凝土梁, 嵌入式加固, 荷载效应

Abstract: CFRP-OFBG slab has good monitoring performance, and the monitoring data can be used to calculate and analyze the load effect of reinforced structures. Based on the plane cross-section assumption and the constitutive relation of stress and strain, a load calculation method for strengthened beams based on CFRP-OFBG slab strain monitoring is presented. The flexural capacity test of 4 CFRP-OFBG slabs embedded reinforced concrete beams was carried out to verify the proposed method. The results show that the calculated value is in good agreement with the test value, and the method is feasible to analyze the real-time load effect of reinforced beams.

Key words: CFRP-OFBG slab, reinforced concrete beam, embedded reinforcement, load effect

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