Page 90 - 《爆炸与冲击》2023年第2期

第 43 卷 第 2 期 爆 炸 与 冲 击 Vol. 43, No. 2
2023 年 2 月 EXPLOSION AND SHOCK WAVES Feb., 2023

DOI：10.11883/bzycj-2022-0435

高聚物牺牲包层对钢筋混凝土板的

爆炸毁伤缓解效应 *

刘志东 ，赵小华 ，方宏远 ，王高辉 ，石明生 1
1,2
1
3
1
（1. 郑州大学黄河实验室，河南 郑州 450001；
2. 江汉大学爆破工程湖北省重点实验室，湖北 武汉 430056；
3. 武汉大学水资源与水电工程科学国家重点实验室，湖北 武汉 430072）

摘要： 为研究高聚物牺牲包层对钢筋混凝土结构的爆炸毁伤缓解效应，开展了带高聚物牺牲包层钢筋混凝土板
的接触爆炸试验，同时设置了普通钢筋混凝土板作为对照组，对比分析了高聚物牺牲包层对钢筋混凝土板毁伤特征的
影响。此外，运用 AUTODYN 软件建立了现场爆炸试验的 SPH-FEM 耦合模型，通过与试验结果的对比，验证了所建耦
合模型的可靠性。在此基础上，通过参数敏感性分析，探究了炸药量和高聚物牺牲包层密度、厚度对带高聚物牺牲包
层钢筋混凝土板毁伤特性以及吸能特性的影响。结果表明：接触爆炸下，高聚物牺牲包层能够有效地分散爆炸荷载，
缓解爆炸荷载对钢筋混凝土板的冲击作用，具有良好的防护性能；药量在一定范围内增大时，高聚物牺牲包层依然能
维持较高的吸能水平，增大包层密度和厚度有利于增强高聚物牺牲包层的吸能特性，包层厚度的变化会造成被保护钢
筋混凝土板毁伤模式的改变。
关键词： 高聚物；牺牲包层；钢筋混凝土板；接触爆炸；毁伤特征
中图分类号： O383 国标学科代码： 13035 文献标志码： A

Damage mitigation effect of polymer sacrificial cladding
on reinforced concrete slabs under blast loading

3
1,2
1
1
LIU Zhidong , ZHAO Xiaohua , FANG Hongyuan , WANG Gaohui , SHI Mingsheng 1
(1. Yellow River Laboratory, Zhengzhou University, Zhengzhou 450001, Henan, China;
2. Hubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan 430056, Hubei, China;
3. State Key Laboratory of Water Resources and Hydropower Engineering Science,
Wuhan University, Wuhan 430072, Hubei, China)

Abstract: The blast resistance of sacrificial cladding has been extensively studied in the field of blast protection. As a polymer
material with a cellular structure, non-water reactive foaming polyurethane also has the potential to act as a sacrificial cladding
due to its good mechanical properties. In order to study the blast damage mitigation effect of polymer sacrificial cladding on
reinforced concrete structures, a contact explosion test on the reinforced concrete slab with polymer sacrificial cladding was
carried out, while an ordinary reinforced concrete slab was set as the control group, and the effect of polymer sacrificial
cladding on the damage characteristics of the reinforced concrete slab was compared and analyzed. In addition, the SPH-FEM
(coupled smooth particle hydrodynamics and finite element method) coupling model of the field explosion test was established
by using AUTODYN software, and the reliability of the coupling model was verified by comparing with the test results. On
this basis, the effects of explosive charge, the density, and the thickness of polymer sacrificial cladding on the damage features

* 收稿日期： 2022-10-11；修回日期： 2022-11-04
基金项目： 国家自然科学基金（52009126, 51939008）；爆破工程湖北省重点实验室开放基金（BL2021-04）
第一作者： 刘志东（1997－ ），男，硕士研究生，lzd18268@163.com
通信作者： 赵小华（1991－ ），男，博士，副教授，zhaoxh2014@126.com

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