Journal of Jilin University(Engineering and Technology Edition) ›› 2023, Vol. 53 ›› Issue (2): 496-504.doi: 10.13229/j.cnki.jdxbgxb20210687

Previous Articles     Next Articles

Experimental on crushing of concrete beams by high⁃voltage pulse discharge

Xiao-dong WANG(),Ning-jing LI,Qiang LI   

  1. School of Architectural and Civil Engineering，Harbin University of Science and Technology，Harbin 150080，China
  • Received:2021-07-18 Online:2023-02-01 Published:2023-02-28

RICH HTML

 2   

PDF (PC)

90

Abstract:

The crushing tests of 15 reinforced concrete beams were carried out by high-voltage pulse discharge（HVPD） in liquid. Based on the comparative analysis of the electrohydraulic effect and the copper wire explosion in liquid on the crushing test of concrete beams， the latter is determined as the optimal scheme. The parameters in the test include strength of concrete， borehole aperture， hole spacing， HVPD voltage and number of copper wires. The results show that the breaking effect of concrete beam increases obviously with the increase of discharge voltage and the number of copper wires， and slightly with the decrease of concrete strength. In the case of all the other parameters being equal， the concrete beam with a hole diameter of 40 mm is better than the concrete beam with a hole diameter of 50 mm. And the concrete beam with drilling spacing of 300 mm has a better crushing effect than the concrete beam with drilling spacing of 400 mm. According to the test results， a mathematical expression was established between the failure degree of concrete beam （i.e.， the crack width of concrete at beam side） and the output voltage， the number of copper wires discharged， the strength of concrete and other key parameters.

Key words: structural engineering, high-voltage pulse, copper wire explosion, concrete beam, crush, crack

CLC Number: 

  • TU375

Table 1

Physical and mechanical properties of concrete"

混凝土

强度等级

μfcu/

（N·mm-2）

μfc/

（N·mm-2）

μft/

（N·mm-2）

μEc/ （104N·mm-2）
C2025.619.51.92.83
C3034.626.12.53.14
C4044.330.92.73.20

Table 2

Physical and mechanical properties of reinforcement"

钢筋种类μfy/ （N·mm-2）μfu/ （N·mm-2）μEs/ （105N·mm-2）
?6336.7523.32.18
?8331.9510.62.23
?12376.4563.12.12
?14412.1564.32.22

Fig.1

Drilling arrangement and numbering of concrete beams"

Fig.2

Diagram of electrode in beam"

Fig.3

Hydroelectric effect crushing effect"

Fig.4

Broken effect of copper wire explosion"

Fig.5

Variation of concrete crack width with discharge times"

Table 3

Concrete beam copper wire explosion test parameters"

孔编号L1L2L3L4L5L6L7
峰值电压V/kV铜丝根数n峰值电压V/kV铜丝根数n峰值电压V/kV铜丝根数n峰值电压V/kV铜丝根数n峰值电压V/kV铜丝根数n峰值电压V/kV铜丝根数n峰值电压V/kV铜丝根数n
110060100501005010060100601005010060
28050806080509060804080607040
34060606050408060805060604040
46050506060406050605050608050
55050706050304040505070605030
64050906040309050405090504030
77040705070506040
89040706090609060

Fig.6

High-voltage pulse crushing effect of concrete beam"

Fig.7

Relationship between crack width and discharge voltage under aperture 40 mm"

Fig.8

Relationship between crack width and number of copper wire roots under aperture 40 mm"

Fig.9

Relationship between crack width and borehole aperture"

Fig.10

Crushing effect of concrete beam after preliminary treatment"

Fig.11

Fitting surface of concrete crack width with copper wire number and discharge voltage （Single hole，the diameter is 40 mm， the spacing is 300~400 mm， and the end distance is 150 mm）"

1 金声琅, 王莹, 殷涌光. 高压脉冲电场对淀粉和肌原纤维蛋白混合凝胶强度的影响[J]. 吉林大学学报: 工学版, 2014, 44(2): 573-578.
Jin Sheng-lang, Wang Ying, Yin Yong-guang. Effect of high intensity pulsed electric field pretreatment on elasticity of starch-myofibril protein mixed gelatin[J]. Journal of Jilin University(Engineering and Technology Edition), 2014, 44(2): 573-578.
2 闫发志. 基于电破碎效应的脉冲致裂煤体增渗实验研究[D]. 徐州: 中国矿业大学安全工程学院, 2017.
Yan Fa-zhi. Experimental study on permeability enhancement of coal by pulse cracking based on electric crushing effect[D]. Xuzhou: School of Safety Engineering, China University of Mining and Technology, 2017.
3 Huang Bing-xiang, Li Peng-feng, Ma Jian, et al. Experimental investigation on the basic law of hydraulic fracturing after water pressure control blasting[J]. Rock Mechanics and Rock Engineering, 2014, 47(4): 1321-1334.
4 张倩. 基于城市视角的绿色建筑发展影响因素研究[D]. 重庆: 重庆大学建设管理与房地产学院,2017.
Zhang Qian. Research on the influencing factors of green building development based on the urban perspective[D]. Chongqing: School of Construction Management and Real Estate, Chongqing University, 2017.
5 刘月飞, 樊学平. 钢筋混凝土框架结构体系地震易损性的D-Vine Copula分析[J]. 吉林大学学报: 工学版, 2022, 52(5): 1071-1078.
Liu Yue-fei, Fan Xue-ping. D⁃Vine copula analysis for seismic vulnerability of RC frame structural system[J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(5): 1071-1078.
6 Uenishi K, Yamachi H, Yamagami K, et al. Dynamic fragmentation of concrete using electric discharge impulses[J]. Construction and Building Materials, 2014, 67(Part B): 170-179.
7 黄国良. 高压脉冲放电碎岩的研究[D]. 武汉: 华中科技大学电气工程学院, 2013.
Huang Guo-liang. Research on rock broken by high voltage pulse discharge[D]. Wuhan: School of Electrical Engineering, Huazhong University of Science and Technology, 2013.
8 张校熔,庄故章,罗德强,等.SelFrag高压脉冲矿石破碎技术研究进展[J].金属矿山, 2017(3): 97-101.
Zhang Xiao-rong, Zhuang Gu-zhang, Luo De-qiang, et al. Research progress of Selfrag high pressure pulsed ore crushing technology[J]. Metal Mine, 2017(3): 97-101.
9 李宏达,李欣,孟宪江,等.高压脉冲对岩混材料击穿效应的仿真研究[J].南京理工大学学报:自然科学版, 2015, 39(1): 15-19.
Li Hong-da, Li Xin, Meng Xian-jiang, et al. Simulation on effect of high voltage pulse on rock mixed materials breakdown [J]. Journal of Nanjing University of Science and Technology, 2015, 39(1): 15-19.
10 Cho S H, Cheong S S, Yokota M, et al. The dynamic fracture process in rocks under high-voltage pulse fragmentation[J]. Rock Mechanics and Rock Engineering, 2016, 49(10): 3841-3853.
[1] Ya-chuan KUANG,Li-bin CHEN,Chao-ju LI,Yu-hao HE. Analysis of mechanical properties of stud shear connectors [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(2): 538-546.
[2] Yun-peng CHU,Xin-hui SUN,Ming LI,Yong YAO,Han-jie HUANG. Wind pressures on a circular hyperbolic⁃paraboloid roof subjected to a simulated downburst [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(8): 1826-1833.
[3] Qing-lin GUO,Qiang LIU,Chun-li WU,Li-li LI,Yi-ming LI,Fu-chun LIU. Local temperature field and healing level of crack in conductive asphalt and mixture [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(6): 1386-1393.
[4] Quan-ping XIA,Jiang-ping GAO,Hao-yuan LUO,Qi-gong ZHANG,Zhi-jie LI,Fei YANG. Low⁃temperature performance of composite modified hard asphalt used in high modulus asphalt concrete [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(3): 541-549.
[5] Yong YAO,Liu-feng SU,Ming LI,Yun-peng CHU,Han-jie HUANG. Wind load characteristics of double⁃sided spherical shell roof under downburst [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(3): 615-625.
[6] Ya-chuan KUANG,Zhe-xuan SONG,Yin-hu LIU,Xiao-fei MO,Liang-ming FU,Shi-quan LUO. Experiment on mechanical properties of new type assembled double-cabin utility tunnel [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(3): 596-603.
[7] Zhi-yuan YUANZHOU,Bo-hai JI,Jun-yuan XIA,Tong SUN. Pneumatic impact test on rib⁃to⁃diaphragm fatigue crack of steel box girder [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(12): 2883-2891.
[8] Yi-hong WANG,Qiao-luo TIAN,Guan-qi LAN,Sheng-fa YAO,Jian-xiong ZHANG,Xi LIU. Experimental research on the mechanical properties of concrete column reinforced with 630 MPa high⁃strength steel under large eccentric loading [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(11): 2626-2635.
[9] Xiao-he YU,Rong LUO,Zi-yao LIU,Ting-ting HUANG,Yu SHU. Numerical simulation of humidity field of typical cracks in asphalt pavement [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(10): 2343-2351.
[10] Yong-zhi GONG,Jin-hua KUANG,Fu-long KE,Quan ZHOU,Xiao-yong LUO. Experiment on seismic behavior of assembled shear wall joints connected by ultra high performance concrete [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(10): 2367-2375.
[11] Xue-ping FAN,Guang-hong YANG,Zhi-peng SHANG,Xiao-xiong ZHAO,Qing-kai XIAO,Yue-fei LIU. Dynamic reliability fusion prediction of long-span bridge girder considering structural serviceability [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(1): 144-153.
[12] Fu-shou LIU,Qi WEI,Wen-ting XU,Guo-jin TAN. Damage detection of truss structures based on elastic wave propagation and spectral element method [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(6): 2087-2095.
[13] Ying-xin HUI,Xiao-rong SUN,Hong-yu WANG,Chen GAO. Effect of hydration heat temperature and cracking mechanism of beam end in early stage of T⁃beam [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(5): 1734-1741.
[14] Xue-ping FAN,Guang-hong YANG,Qing-kai XIAO,Yue-fei LIU. Optimal R-vine copula information fusion for failure probability analysis of long-span bridge girder [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(4): 1296-1305.
[15] Jiang YU,Zhi-hao ZHAO,Yong-jun QIN. Damage of reinforced concrete shear beams based on acoustic emission and fractal [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(2): 620-630.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] LI Shoutao, LI Yuanchun. Autonomous Mobile Robot Control Algorithm Based on Hierarchical Fuzzy Behaviors in Unknown Environments[J]. 吉林大学学报(工学版), 2005, 35(04): 391 -397 .
[2] Liu Qing-min，Wang Long-shan，Chen Xiang-wei，Li Guo-fa. Ball nut detection by machine vision[J]. 吉林大学学报(工学版), 2006, 36(04): 534 -538 .
[3] Li Yue-ying，Liu Yong-bing，Chen Hua . Surface hardening and tribological properties of a cam materials[J]. 吉林大学学报(工学版), 2007, 37(05): 1064 -1068 .
[4] Nie Jian-jun，Du Fa-rong，Gao Feng . Finite time thermodynamics of real combined power cycle operating
between internal combustion engine and Stirling engine with heat leak[J]. 吉林大学学报(工学版), 2007, 37(03): 518 -0523 .
[5] Yang Shu-kai, Song Chuan-xue, An Xiao-juan, Cai Zhang-lin . Analyzing effects of suspension bushing elasticity
on vehicle yaw response character with virtual prototype method[J]. 吉林大学学报(工学版), 2007, 37(05): 994 -0999 .
[6] . [J]. 吉林大学学报(工学版), 2007, 37(06): 1284 -1287 .
[7] Che Xiang-jiu，Liu Da-you，Wang Zheng-xuan . Construction of joining surface with G1 continuity for two NURBS surfaces[J]. 吉林大学学报(工学版), 2007, 37(04): 838 -841 .
[8] Liu Han-bing, Jiao Yu-ling, Liang Chun-yu,Qin Wei-jun . Effect of shape function on computing precision in meshless methods[J]. 吉林大学学报(工学版), 2007, 37(03): 715 -0720 .
[9] Tang Xin-xing，Zhao Ding-xuan，Huang Hai-dong，Ai Xue-zhong,Feng Shi-zhu . Modified stereo vision calibration method for construction robot
[J]. 吉林大学学报(工学版), 2007, 37(02): 391 -0395 .
[10] Li Xue-xia, Feng Jiu-chao . Non-coherent detection scheme for chaotic digital communications based on inverse iteration[J]. 吉林大学学报(工学版), 2007, 37(01): 202 -205 .
Copyright © Journal of Jilin University(Engineering and Technology Edition), All Rights Reserved.
Tel: +86-431-85095297　Fax: +86-431-85094074　E-mail: xbgxb@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd