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建筑玻璃板在爆炸荷载下的破碎性能(Ⅱ)——试验验证
  • ISSN号:1000-131X
  • 期刊名称:《土木工程学报》
  • 时间:0
  • 分类:O347.3[理学—固体力学;理学—力学] TU524[建筑科学—建筑技术科学]
  • 作者机构:[1]同济大学土木工程学院,上海200092, [2]同济大学土木工程防灾国家重点实验室,上海200092, [3]中建八局技术中心,上海200120
  • 相关基金:国家自然科学基金(51278365)
中文摘要:

与本文相关的另一篇系列论文对建筑玻璃板在爆炸荷载下的玻璃碎片飞溅进行了理论推导,最终得到了用于评估玻璃碎片危害范围的简化模型。为了验证该理论模型的准确性,进行8mm厚普通平板玻璃的静力材性试验及其在600g、800g、1200g和1600gTNT炸药下的现场野外爆炸试验。通过压力传感器采集爆炸冲击波的压力时程;利用高速相机对玻璃碎片的破碎与飞溅过程进行抓拍,得到不同炸药当量下玻璃碎片的抛射速度;对各个荷载工况下玻璃板破碎后散落在房间内的玻璃碎片进行人工收集,得到玻璃碎片的距离分布。通过试验数据与理论模型的对比分析,得到理论模型中的调整系数,最后通过试验中玻璃碎片最大飞溅距离与理论模型得到的飞溅距离的对比,验证了用于玻璃碎片危害范围评估的理论模型的准确性。

英文摘要:

In the companion paper, the theoretical formulas of projection velocity of splashing glass fragments were derived, and simplified analysis model the hazard range assessment of glass fragments was obtained, In order to verify the accuracy of the theoretical model, static material laboratory tests and of architectural 8mm-thick glass panel with and of 600g, 800g, 1200g and 1600g TNT in-situ explosive tests were carried out respectively, The time history curves of explosion shock wave were collected by pressure sensor. The crushing process of glass panel and the projection velocities of glass fragments were also recorded by high-speed camera, and the relationship of the amount of explosives and fragments splashing speed was established. The glass fragments scattered in the room were collected, and the flight distance and distribution of fragments were measured. By the comparative analysis between the test data and theoretical model, adjustment factor used in the theoretical model is obtained. Finally, the accuracy of theoretical model for assessing the hazard range of glass fragments is verified by comparing the test results with the theoretical ones.

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期刊信息
  • 《土木工程学报》
  • 北大核心期刊(2011版)
  • 主管单位:这么住房和城乡建设部
  • 主办单位:中国土木工程学会
  • 主编:袁驷
  • 地址:北京三里河路9号建设部内
  • 邮编:100835
  • 邮箱:tumuxuebao@263.net
  • 电话:010-58934211 58933912
  • 国际标准刊号:ISSN:1000-131X
  • 国内统一刊号:ISSN:11-2120/TU
  • 邮发代号:2-582
  • 获奖情况:
  • 国内外数据库收录:
  • 荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:40506