蔡路军,陈少杰,吴立过,许凯

• 1:武汉科技大学理学院
• 2:湖北省智能爆破工程技术研究中心
• 3:中铁广州工程局武科大爆破技术研究中心
• 4:武汉科技大学城市建设学院

摘要(Abstract)：

针对普通钢筋混凝土板和碳纤维布加固混凝土板(CFRP)进行爆破试验,比较了不同TNT炸药当量下CFRP加固板的破坏机理和动态响应。实验采用嵌入式压电智能骨料监测混凝土板的内部损伤状况,利用小波包能量分析理论计算损伤指数,并通过加速度和应变片监测混凝土板在爆炸荷载作用下的动态响应。实验结果表明:在药量较小(10 g、20 g、40 g)时,经过CFRP加固的混凝土板在相同爆破荷载作用下损伤指数相比于普通板分别降低了29.05%、27.44%、15.85%,表明粘贴于结构背部的CFRP材料分摊了拉伸波所携带的部分能量,延缓了混凝土的开裂,提高了混凝土的抗爆性能;但当药量较大(80g、160 g)时,CFRP加固板损伤指数相比于普通板降低了仅为8.69%、0.35%,CFRP材料对提高混凝土板抗爆性能不明显。

关键词(KeyWords)： 爆炸荷载;损伤监测;智能骨料(SA);CFRP加固混凝土板

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51574184);; 湖北省教育厅科学研究计划重点项目(D20151105)

作者(Author): 蔡路军,陈少杰,吴立过,许凯

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