车致爆炸作用下装配式桥墩损伤模式及安全防护距离

doi:10.12068/j.issn.1005-3026.2023.09.015

东北大学学报（自然科学版） ›› 2023, Vol. 44 ›› Issue (9): 1337-1348.DOI: 10.12068/j.issn.1005-3026.2023.09.015

车致爆炸作用下装配式桥墩损伤模式及安全防护距离

朱钊¹，李源^1,2，韩逸涛¹

(1. 长安大学公路学院，陕西西安710064； 2. 长安大学旧桥检测与加固技术交通行业重点实验室，陕西西安710064)

发布日期:2023-09-28
通讯作者: 朱钊
作者简介:朱钊(1992-)，男，陕西西安人，长安大学博士研究生.
基金资助:
国家自然科学基金资助项目(51978062)；中央高校基本科研业务费专项资金—长安大学优秀博士学位论文培育资助项目(300203211218).

Damage Mode and Safety Distances of Precast Columns Under Vehicle Induced Explosions

ZHU Zhao¹， LI Yuan^1,2， HAN Yi-tao¹

1. School of Highway， Chang’an University， Xi’an 710064， China； 2. Key Laboratory for Old Bridge Detection and Reinforcement Technology of Ministry of Transportation， Chang’an University， Xi’an 710064， China.

Published:2023-09-28
Contact: LI Yuan
About author:-
Supported by:
-

摘要/Abstract

摘要： 为评价在役装配式桥墩的抗爆性能并建立其安全防护距离，结合已有现浇桥墩及装配式桥墩爆炸试验结果，进行了材料损伤本构、空气和炸药状态方程及接缝分析参数的验证.在分析参数验证的基础上，采用Autodyn冲击分析软件，进行了三种连接方式下装配式桥墩的车致爆炸性能分析.分析结果表明，当爆炸距离小于2m时，三种装配式桥墩均表现出墩底区域冲剪破坏.爆炸距离大于3m时，无粘结预应力装配式桥墩及灌浆波纹管装配式桥墩在爆炸冲击波作用下，表现出墩底接缝的有限滑移，部分装配式桥墩表现出典型的弯剪破坏模式.结合桥墩损伤分布、墩底加速度时程、钢筋应力分析结果表明:以不倒塌理念进行三种装配式桥墩抗爆防护时，其安全防护距离均为3m.

关键词: 桥梁工程；装配式桥墩；车致爆炸；损伤模式；动态响应；安全防护距离

Abstract: The objective of this study is to estimate the blasting performance and define the safety distances for precast segmental bridge columns(PSBC). The constitutive model of concrete and steel bars， the state equation of air and TNT， and the parameters of joints are validated firstly through the explosion tests of cast-in-place(CIP)column and precast columns. Based on the verified parameters， the blast response of PSBC with different connections was analyzed using Autodyn. The analytical results showed that similar punching shear failure at column base occurs when the distance is less than 2m. When the blasting distance exceeds 3m， limited slippage occurs in PSBC connected by unbonded tendons and grouted corrugated ducts. On the contrary， typical bending-shear failure is discovered and negligible slippage is observed in partial precast columns. Combined with damage distribution， acceleration history， and stress of steel bars， the collapse can be avoided when explosive distances exceed 3m.

Key words: bridge engineering; precast column; vehicle induced explosion; damage mode; dynamic response; safety distance

中图分类号:

U441

朱钊，李源，韩逸涛. 车致爆炸作用下装配式桥墩损伤模式及安全防护距离[J]. 东北大学学报（自然科学版）, 2023, 44(9): 1337-1348.

ZHU Zhao， LI Yuan， HAN Yi-tao. Damage Mode and Safety Distances of Precast Columns Under Vehicle Induced Explosions[J]. Journal of Northeastern University(Natural Science), 2023, 44(9): 1337-1348.

参考文献

[1]张宇，李国强，陈可鹏，等.桥梁结构抗爆安全评估研究进展［J］.爆炸与冲击，2016，36(1):136-144.(Zhang Yu，Li Guo-qiang，Chen Ke-peng，et al.Research advances of safety assessment of bridges under blast load ［J］.Explosion and Shock Waves，2016，36(1):136-144.)
[2]Pan Y X，Ventura C E，Cheung M M S.Performance of highway bridges subjected to blast loads ［J］.Engineering Structures，2017，151:788-801.
[3]Zhu Z，Li Y，Ma C.Damage analysis of small box girder bridges under car explosion ［J］.Engineering Failure Analysis，2021，120:105104.
[4]Wang P，Chen H L，Zhou J N，et al.Failure mechanism of CFRP-wrapped protective concrete arches under static and blast loadings:experimental research ［J］.Composite Structures，2018，198(8):1-10.
[5]张勤彬，程贵海，徐中慧，等.贾木那大桥水压定向爆破及其数值模拟［J］.爆炸与冲击，2019，39(6):136-143.(Zhang Qin-bin，Cheng Gui-hai，Xu Zhong-hui，et al.Directional water pressure of Jamuna bridge and its numerical simulation ［J］.Explosion and Shock Waves，2019，39(6):136-143.)
[6]Zhu Z，Li Y，He S H，et al.Analysis of the failure mechanism of multi-beam steel-concrete composite bridge under car explosion ［J］.Advances in Structural Engineering，2019，23(3):538-548.
[7]宗周红，唐彪，高超，等.钢筋混凝土墩柱抗爆性能试验［J］.中国公路学报，2017，30(9):52-60.(Zong Zhou-hong，Tang Biao，Gao Chao，et al.Experiment on blast-resistance performance of reinforced concrete piers ［J］.China Journal of Highway and Transportations，2017，30(9):52-60.)
[8]Williamson E B，Bayrak O，Davis C，et al.Performance of bridge column subjected to blast loads.I:Experimental program ［J］.Journal of Bridge Engineering，2011，16(6):693-702.
[9]Williamson E B，Bayrak O，Davis C，et al.Performance of bridge column subjected to blast loads.Ⅱ:Results and recommendations［J］.Journal of Bridge Engineering，2011，16(6):703-710.
[10]Williams G D，Williamson P E.Procedure for predicting blast loads acting on bridge columns ［J］.Journal of Bridge Engineering，2012，17(3):490-499.
[11]Fujikake K，Aemlaor P.Damage of reinforced concrete columns under demolition blasting ［J］.Engineering Structures，2013，55:116-125.
[12]Yuan S J，Hao H，Zong Z H，et al.A study of RC bridge columns under contact explosion ［J］.International Journal of Impact Engineering，2017，109:378-390.
[13]Bao X L，Li B.Residual strength of blast damaged reinforced concrete columns［J］.International Journal of Impact Engineering，2010，37:295-308.
[14]Li J，Wu C Q，Hao H，et al.Post-blast capacity of ultra-high performance concrete columns ［J］.Engineering Structures，2017，134:289-302.
[15]Fujikura S，Bruneau M.Experimental investigation of seismically resistant bridge piers under blast loading［J］.Journal of Bridge Engineering，2011，16(1):63-71.
[16]Thomas R J，Steel K，Sorensen A D.Reliability analysis of circular reinforced concrete columns subjected to sequential vehicular impact and blast loading ［J］.Engineering Structures，2018，168:838-851.
[17]Zhang Q，Alam M S.State-of-the-art review of seismic-resistant precast bridge columns［J］.Journal of Bridge Engineering，2020，25(10):03120001.
[18]Li J，Hao H，Wu C Q.Numerical study of precast segmental column under blast loads［J］.Engineering Structures，2017，134:125-137.
[19]杨旭，张于晔，张宁.爆炸冲击作用下预制节段拼装桥墩的动态响应与损伤分析［J］.爆炸与冲击，2019，39(3):144-151.(Yang Xu，Zhang Yu-ye，Zhang Ning.Dynamic response and damage analysis of precast segmental piers under blast impact ［J］.Explosion and Shock Waves，2019，39(3):144-151.)
[20]Liu L，Zong Z H，Ma J Z G，et al.Experimental study on behavior and failure mode of PSRC bridge pier under close-in blast loading ［J］.Journal of Bridge Engineering，2021，26(2):04020124.
[21]Liu L，Ma J Z G，Zong Z H，et al.Blast response and damage mechanism of prefabricated segmental RC bridge piers ［J］.Journal of Bridge Engineering，2021，26(4):04021012.
[22]Riedel W，Thoma K，Hiermaier S，et al.Penetration of reinforced concrete by BETA-B-500—numerical analysis using a new macroscopic concrete model for hydrocodes［C］//Proceeding of the 9th International Symposium on Interaction of the Effects of Munitions with Structures.Berlin，1999:315-322.
[23]李忠献，刘泽锋.混凝土动态本构模型综述［J］.天津大学学报(自然科学与工程技术版)，2015，48(10):854-863.(Li Zhong-xian，Liu Ze-feng.Review of concrete dynamic constitutive model ［J］.Journal of Tianjin University(Science and Technology)，2015，48(10):854-863.)
[24]张若棋，丁育清，汤文辉，等.混凝土HJC、RHT本构模型的失效强度参数［J］.高压物理学报，2011，25(1):16-22.(Zhang Ruo-qi，Ding Yu-qing，Tang Wen-hui，et al.The failure strength parameters of HJC and RHT concrete constitutive models ［J］.Chinese Journal of High Pressure Physics，2011，25(1):16-22.)
[25]Forni D，Chiaia B，Cadoni E.Blast effects on steel columns under fire conditions ［J］.Journal of Constructional Steel Research，2017，136:1-10.
[26]Ma L，Wu H，Fang Q.Damage mode and dynamic response of RC girder bridge under explosions ［J］.Engineering Structures，2021，243:112676.
[27]Ou Y C，Oktavianus Y，Tsai M S.An emulative precast segmental concrete bridge column for seismic regions ［J］.Earthquake Spectra，2013，29(4):1441-1457.

车致爆炸作用下装配式桥墩损伤模式及安全防护距离

Damage Mode and Safety Distances of Precast Columns Under Vehicle Induced Explosions

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