POZD涂层钢筋混凝土板抗震塌性能

doi:10.3969/j.issn.1000-1093.2021.01.015

摘要/Abstract

摘要： 为研究POZD涂层钢筋混凝土板在接触爆炸作用下的抗震塌性能，对3种试验模型开展不同梯恩梯（TNT）当量的接触爆炸试验。通过对试验模型的毁伤状态观察及数据统计，研究分析了POZD涂层的破坏模式和抗震塌机理。结果表明：POZD涂层钢筋混凝土板具备较为优越的抗震塌性能，随着涂层厚度的增加，抗震塌能力逐渐增强，且震塌系数呈线性减小趋势；钢筋混凝土板喷涂8 mm厚POZD涂层后，抗震塌能力远优于内衬3 mm厚Q235b钢板；在集团装药接触爆炸（球面波）作用下，POZD涂层的毁伤模式为圆锥状鼓起，该鼓起为混凝土碎块和冲击波的复合冲击作用下出现较大塑性变形所致；当冲击荷载超过POZD材料的极限抗拉强度时，除在锥尖处出现较小的圆孔状剪切破坏外，涂层仍能保持整体完好并持续有效约束混凝土碎片，不致产生大面积震塌破坏；在高应变率、强动载作用下，POZD涂层仍然能够保持大变形、高塑性特性，通过自身大变形吸收冲击波能量，约束混凝土碎片，起到较好的抗震塌效果。

关键词: 钢筋混凝土板, POZD涂层材料, 抗震塌, 爆炸荷载, 毁伤模式

Abstract: Different TNT equivalent tests of three test models were made to study the anti-collapsing behavior of POZD coated reinforced concrete slab. The failure mode and anti-collapsing mechanism of POZD coating were studied and analyzed by observing the damage states and data statistics of the test models. The results show that POZD coated reinforced concrete slab has superior anti-collapsing performance, and with the increase in coating thickness, the anti-collapsing capacity increases gradually, and K_z decreases linearly. After spraying 8 mm-thick POZD coating on reinforced concrete slab, its anti-collapsing capacity is much better than that of 3 mm-thick Q235b steel plate. The damage model of POZD coating is conically bulged under the contact explosion of group charge, which is caused by large plastic deformation under the combined action of concrete fragment and shock wave. When the shock wave load exceeds the ultimate tensile strength of POZD material, the coating can remain intact and effectively restrain the concrete fragments except for the small circular hole shear failure at the tip of the cone. Under the action of high strain and strong dynamic load, POZD coating can still maintain the characteristics of large deformation and high plasticity. Through the large deformation of POZD coating, it absorbs the energy of shock wave, constrains the concrete debris, and plays a good anti-collapsing effect.

Key words: reinforcedconcreteslab, POZDcoatingmaterial, anti-collapsing, explosionload, damagemodel

中图分类号:

O383

杨建超，汪剑辉，陈力，孔德锋，赵洪祥. POZD涂层钢筋混凝土板抗震塌性能[J]. 兵工学报, 2021, 42(1): 133-140.

YANG Jianchao， WANG Jianhui， CHEN Li， KONG Defeng， ZHAO Hongxiang. Anti-collapsing Performance of POZD Coated Reinforced Concrete Slab[J]. Acta Armamentarii, 2021, 42(1): 133-140.

参考文献

［1］焦楚杰，孙伟，高培正. 钢纤维高强混凝土抗爆炸研究［J］.工程力学，2008，25(3)：158-166.
JIAO C J，SUN W，GAO P Z. Study on sheel fiber reinforced high strength concrete subject to blast loading ［J］. Engineering Mechanics，2008，25(3)：158-166. (in Chinese)
［2］ COUGHLIN M A， MUSSELMAN E S， SCHOKKER A J，et al. Behavior of portable fiber reinforced concrete vehicle barriers subject to blasts from contact charges ［J］. International Journal of Impact Engineering，2009, 37(5)：521-529.
［3］王明洋，张胜民，国胜兵. 接触爆炸作用下钢板-钢纤维混凝土遮弹层设计方法(Ι)［J］．爆炸与冲击，2002，22(1)：40-45.
WANG M Y，ZHANG S M，GUO S B．Design method of steel fiber concrete shelter plate under contact detonation（Ι）［J］．Explosion and Shock Waves，2002，22(1)：40-45. (in Chinese)
［4］王明洋，钱七虎，赵跃堂. 接触爆炸作用下钢板-钢纤维混凝土遮弹层设计方法(Ⅱ)［J］．爆炸与冲击，2002，22(2)：163-168.
WANG M Y, QIAN Q H, ZHAO Y T. Design method of steel fiber concrete shelter plate under contact detonation (Ⅱ) ［J］．Explosion and Shock Waves，2002，22(2)：163-168．(in Chinese)
［5］柳景春，方秦. 爆炸荷载作用下内衬钢板的混凝土组合结构防震塌的工程计算方法［J］.防护工程，2008，30(4)：31-34.
LIU J C, FANG Q. The engineering calculation method of steel-backed concrete composite structures for anti-scabbing under blast loading［J］. Protective Engineering，2008，30(4)：31-34. (in Chinese)
［6］柳景春，方秦，张亚栋, 等. 爆炸荷载作用下内衬钢板的混凝土组合结构的局部效应分析［J］.兵工学报，2004，25(6)：773-776.
LIU J C，FANG Q，ZHANG Y D，et al. Analysis of local effects on steel-backed concrete composite structures under blast loading［J］.Acta Armamentarii，2004，25(6)：773-776. (in Chinese)
［7］ HULTON F G, GOUGH M S. The development of steel-plate/reinforced concrete composite panels to resist explosive attack［C］∥Proceedings of the 9th International Symposium of Interaction of the Effects on Munitions with Structures. Berlin,Germany:ISIEMS, 1999.
［8］李志成，艾德武，严少华. 碳纤维布加固混凝土试块抗侵彻试验研究［J］.防护工程，2002, 24(1):42-49.
LI Z C, AI D W, YAN S H. Experimental study on penetration resistance of concrete block strengthened with CFRP ［J］. Protective Engineering，2002, 24(1)：42-49.(in Chinese)
［9］韩国建，程国亮，杨进勇, 等. 双向余弦三维波纹钢板-混凝土复合结构抗震塌性能研究［J］.防护工程，2013，35(6)：13-17.
HAN G J，CHENG G L，YANG J Y，et al. Research on anti-collapse ability of bidirectional cosine three-dimensional corrugated steel place-reinforced concrete composite structure［J］. Protective Engineering，2013, 35(6)：13-17.(in Chinese)
［10］袁建虎，唐建，吕振坚, 等. 钢丝网高强混凝土抗爆性能试验研究［J］. 兵工学报，2012，33(3)：373-378.
YUAN J H, TANG J, L Z J, et al. Experimental investigation on anti-explosion performance of steel-wire-net reinforced concretes［J］. Acta Armamentarii, 2012, 33(3): 373-378.（in Chinese）
［11］黄微波，赵洪祥，胡晓, 等. 聚异氰氨酸酯噁唑烷/聚氨酯/环氧材料及制备方法：ZL201510037147.2［P］. 2015-01-26.
HUANG W B，ZHAO H X，HU X，et al. Polyisocyanate oxazolidinone/polyurethane/epoxy material and preparation method thereof：ZL201510037147.2［P］. 2015-01-26.（in Chinese）
［12］张鹏，赵鹏铎，王志军, 等. 高硬度聚脲涂层抗侵彻性能与断裂机制研究［J］. 爆炸与冲击，2019, 39(1)：015101.
ZHANG P，ZHAO P D，WANG Z J，et al. Penetration resistance and fracture mechanism of high-hardness polyuria coating［J］. Explosion and Shock Waves，2019，39(1)：015101.（in Chinese）
［13］张想柏，杨秀敏，陈肇元. 接触爆炸钢筋混凝土板的震塌效应［J］. 清华大学学报（自然科学版），2006，46(6)：765-768.
ZHANG X B, YANG X M, CHEN Z Y. Explosion spalling of reinforced concrete slabs with contact detonations ［J］. Journal of Tsinghua University（Science and Technology），2006，46(6)：765-768. (in Chinese)
［14］张正宇. 中国爆破新技术［M］.北京：冶金工业出版社，2004：37-41.
ZHANG Z Y. New blasting technology in China［M］. Beijing：Metallurgical Industry Press，2004:37-41. (in Chinese)
［15］胡金生，杨科之，董军，等. 钢筋混凝土结构震塌计算中的材料影响系数研究［J］.防护工程，2016, 38(3)：35-38.
HU J S，YANG K Z，DONG J，et al. Study on the material affecting coefficient in the blast spalling calculation for RC structure［J］. Protective Engineering，2016, 38(3)：35-38.（in Chinese）
［16］郑全平，钱七虎，周早生，等. 钢筋混凝土震塌厚度计算公式对比研究［J］. 工程力学, 2003, 20(3)：47-53.
ZHENG Q P，QIAN Q H，ZHOU Z S，et al. Comparative analysis of scabbing thickness estimation of reinforced concrete structures［J］.Engineering Mechanics,2003, 20(3)：47-53.（in Chinese）
［17］王礼立. 应力波基础［M］.北京：国防工业出版社，2005.
WANG L L.Foundation of stress waves［M］. Beijing：National Defense Industry Press，2005. (in Chinese)

[1]	徐干成，袁伟泽，陈林恒，李成学，颉旭虎，聂梦琪. NFB700高强钢板抗震塌性能[J]. 兵工学报, 2022, 43(2): 391-400.
[2]	耿少波，葛培杰，李洪，徐鹏. 爆炸荷载结构等效静载动力系数研究[J]. 兵工学报, 2019, 40(10): 2088-2095.
[3]	汪维, 刘瑞朝, 吴飚, 李林, 黄家蓉, 王幸. 爆炸荷载作用下钢筋混凝土梁毁伤判据研究[J]. 兵工学报, 2016, 37(8): 1421-1429.
[4]	杨亚东，李向东，王晓鸣. 长方体密闭结构内爆炸冲击波传播与叠加分析模型[J]. 兵工学报, 2016, 37(8): 1449-1455.
[5]	陈万祥₁，郭志昆，叶均华₂. 爆炸荷载作用下柔性边界钢筋混凝土梁的动力响应与破坏模式分析[J]. 兵工学报, 2011, 32(10): 1271-1277.
[6]	宋春明，王明洋，王德荣. 爆炸荷载作用下柔性动边界拱的动力响应分析[J]. 兵工学报, 2008, 29(7): 813-818.
[7]	王明洋，宋春明，王德荣,潘越峰. 钢筋混凝土板在低速冲击下的计算方法[J]. 兵工学报, 2004, 25(6): 672-678.
[8]	柳錦春，方秦，张亚栋,赵晓兵. 爆炸荷载作用下由衬钢板的混凝土组合结构故局部效应分析[J]. 兵工学报, 2004, 25(6): 773-776.