碳纤维布加固砌体填充墙抗近距离小当量炸药爆炸实验研究

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英文篇名：BLAST RESPONSE OF CFRP-REINFORCED CONCRETE MASONRY WALL AGAINST SMALL STAND-OFF DISTANCE EXPLOSIVE CHARGE 作者：万军 英文作者：WAN Jun;College of Military Education,National University of Defense Technology; 关键词：固体力学 ; 墙体加固 ; 爆炸实验 ; 碳纤维布 ; 近距离爆炸 英文关键词：solid mechanics;;reinforced concrete masonry unit wall;;field blasting;;carbon fiber reinforced polymer;;small stand-off distance explosive charge 中文刊名：GCLX 英文刊名：Engineering Mechanics 机构：国防科技大学军事基础教育学院; 出版日期：2019-06-20 出版单位：工程力学 年：2019 期：v.36 基金：国防科技大学预先研究项目:高强度纤维织物加固砌体填充墙的抗爆机理及具优化研究(JC10-09-01) 语种：中文; 页：GCLX2019S1048 页数：5 CN：S1 ISSN：11-2595/O3 分类号：297-301

摘要

该文实验研究了无加固、单层碳纤维布加固和多层碳纤维布加固的单向砌体填充墙在近距离小当量炸药爆炸作用下的破坏形式和失效机理。研究表明,近距离小当量炸药爆炸条件下,墙体通常受到局部破坏和整体破坏作用。采用墙体背部粘贴锚固纤维布的加固措施,可以有效减小炸药爆炸对墙体的局部破坏和整体破坏作用。为了使墙体能够抵抗近距离小当量炸药的爆炸,在爆炸近区和爆炸远区需要根据墙体结构形式和纤维布的具体形式分别选用合适的纤维布铺层方式和层数。
        The experimental results of one-way concrete masonry unit(CMU) walls reinforced with carbon fiber reinforced polymer(CFRP) against small stand-off distance explosive charges are presented. And the failure mechanisms of CMU walls as well as the CFRP were also investigated. Three CMU walls without CFRP reinforcement and two CMU walls reinforced with CFRP reinforcement were tested by field blasting. These experimental results indicated that localized damage and integral damage occurred at the same time when the CMU wall subjected to small stand-off distance explosive charge. And the CFRP reinforcement could reduce both localized and integral damage to CMU wall effectively. The reasonable pattern and amount of CFRP laminates were also required to effectively reduce both localized and integral damage to CMU wall.

引文

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