Variational analysis in safety assessment for slab-shaped reinforced concrete structure's load plate in gas explosion

XU Cimin; YAO Wenjuan; FANG Tingchen

doi:10.11883/bzycj-2016-0231

Volume 38 Issue 2

Jan. 2018

Turn off MathJax

Article Contents

Abstract

References

Article Navigation > Explosion And Shock Waves > 2018 > 38(2): 339-344

WANG Xiaofeng, TAO Gang, REN Baoxiang, PANG Chunqiao, FAN Qiang, LIU Long. Mechanical parameters of the overwhelm process of fluted liner for 30 mm rifled gun based on SPH method[J]. Explosion And Shock Waves, 2019, 39(1): 012201. doi: 10.11883/bzycj-2017-0291

Citation:

XU Cimin, YAO Wenjuan, FANG Tingchen. Variational analysis in safety assessment for slab-shaped reinforced concrete structure's load plate in gas explosion[J]. Explosion And Shock Waves, 2018, 38(2): 339-344. doi: 10.11883/bzycj-2016-0231

Citation:

PDF( 2730 KB)

Variational analysis in safety assessment for slab-shaped reinforced concrete structure's load plate in gas explosion

doi: 10.11883/bzycj-2016-0231

XU Cimin^{1, 2},
YAO Wenjuan¹,
FANG Tingchen^{3
,
,}

1.
Department of Civil Engineering, Shanghai University, Shanghai 200444, China
2.
Shanghai Baoye Engineering Technology Corp. Ltd., Shanghai 200941, China
3.
Shanghai Construction Group Co. Ltd., Shanghai 200080, China

Received Date: 2016-08-16
Rev Recd Date: 2017-02-24
Publish Date: 2018-03-25

Abstract

Abstract

It is necessary to determine the greatest possible load that a civil building can bear in a gas explosion in a quick safety assessment of the building. In this paper, according to the principle of virtual displacements, we derived the function relationships between the slab's surface load and its bending stiffness, maximum deflection, flexural stiffness and geometric boundary conditions, at the time of gas explosion, using the Galerkin variational method, and reversely we derived the slab's pseudo static load and maximum deflection by combining them with the slab's maximum deflection collected in the actual in-situ explosion test. The result shows that the pressure curve range of the sidewall falls within the numerical simulation results of the gas explosion, with an error of only 2% between the method and the finite element method. The static analysis of the structure in combination with the pseudo static load can provide a reference for the rapid assessment of structural safety. Also, following the site check of the building after the explosion, we proposed constructing measures for preventing continuous collapse that might result from gas explosion in a civil building.
- reverse bang size,
- safety assessment,
- Galerkin method,
- blast-resistant measures

FullText(HTML)

References(9)

References

[1]	胡海昌.广义变分原理在近似解中的合理应用[J].力学学报, 1982, 14(1):1-7. http://www.oalib.com/paper/4289730 HU Haichang. Generalized variational principle in reasonable application of approximate solutions[J]. Journal of Mechanics, 1982(1):1-17. http://www.oalib.com/paper/4289730
[2]	欧斐君.变分法及其应用[M].北京:高等教育出版社, 2013:132-135.
[3]	中华人民共和国住房和城乡建设部. 混凝土结构设计规范: GB50010-2010[S]. 北京: 中国建筑工业出版社, 2010.
[4]	毕继红, 王晖.工程弹塑性力学[M].天津:天津大学出版社, 2003:165-185.
[5]	段怡敏. 西安市春晓新苑1号楼施工图[Z]. 西安: 中国建筑西北设计研究院, 2007.
[6]	高永红, 范俊奇, 楼梦麟.新Ⅲ级钢筋动力性能及在抗爆结构中应用实验[J].同济大学学报(自然科学版), 2012, 40(12):1778-1782. doi: 10.3969/j.issn.0253-374x.2012.12.006 GAO Yonghong, FAN Junqi, LOU Menglin. New level Ⅲ dynamic performance of steel and its application in blast-resistant structures[J]. Journal of Tongji University (Natural Science Edition), 2012, 40(12):1778-1782. doi: 10.3969/j.issn.0253-374x.2012.12.006
[7]	中国工程建设标准化协会. 建筑结构荷载规范: GB5009-2012[S]. 北京: 中国建筑工业出版社, 2012.
[8]	徐赐敏. 西安市春晓新苑1号楼爆炸后检测报告[R]. 上海: 上海宝冶工程技术有限公司, 2012.
[9]	宁建国, 王成, 马天宝, 等.爆炸与冲击动力学[M].北京:国防工业出版社, 2010:364-366.

Relative Articles

[1]	LYU Jinxian, WU Hao, LU Yonggang, CHEN De. High-efficiency assessment method of damage for building structures under explosions[J]. Explosion And Shock Waves, 2025, 45(1): 015101. doi: 10.11883/bzycj-2024-0053
[2]	LI Heng, MA Guorui, LIU Yudi, ZHANG Haiming. A remote sensing imagery-based model for assessment of building damage induced by large-equivalent explosions[J]. Explosion And Shock Waves, 2024, 44(3): 031407. doi: 10.11883/bzycj-2023-0331
[3]	WEI Xiao, CHENG Yangfan, ZHU Rongkang, SUN Renhao, WANG Quan. Explosion characteristics and thermal safety of low detonation velocity emulsion explosives containing coal-based solid waste fly ash microspheres[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0117
[4]	YANG Shigang, CAI Jiongwei, YANG Ya, SUN Wensheng, MEN Jingmin. Disaster effects of combustible gas explosion in an urban shallow-buried pipe trench (Ⅱ): influencing factor analysis and consequence evaluation[J]. Explosion And Shock Waves, 2023, 43(1): 015401. doi: 10.11883/bzycj-2021-0503
[5]	SU Qiong, CHENG Yuehua, WU Hao. Flexural damage assessment for UHPC panels under blast loadings[J]. Explosion And Shock Waves, 2023, 43(12): 125103. doi: 10.11883/bzycj-2023-0160
[6]	ZHANG Yuqi, JIANG Nan, ZHOU Chuanbo, YAO Yingkang, LI Haibo, CAI Zhongwei, HU Zongyao. Dynamic failure mechanism of HDPE pipelines with a gasketed bell and spigot joint subjected to blasting seismic load[J]. Explosion And Shock Waves, 2022, 42(12): 125101. doi: 10.11883/bzycj-2021-0492
[7]	ZENG Fan, XIAO Guizhong, FENG Xiaowei, HUANG Chao, TIAN Rong. A damage assessment method for masonry structures subjected to long duration blast loading[J]. Explosion And Shock Waves, 2021, 41(10): 105101. doi: 10.11883/bzycj-2020-0399
[8]	LI Dian, HOU Hailiang, ZHU Xi, CHEN Changhai, LI Mao. A theoretical model for the evaluation of protective capability of a sandwich bulkhead structure in the close range of warhead explosion[J]. Explosion And Shock Waves, 2019, 39(2): 022201. doi: 10.11883/bzycj-2017-0351
[9]	HUANG Yong, XIE Lifeng, ZHANG Hongwei, LU Changbo, AN Gaojun, XIONG Chunhua, CHEN Qun. Experimental study of dispersal and cloud explosion of a new micro-emulsified diesel fuel and its explosion suppression performance assessment[J]. Explosion And Shock Waves, 2019, 39(3): 035401. doi: 10.11883/bzycj-2017-0457
[10]	Li Yueqiang, Yi Na, Xi Feng. Assessment on single degree of freedom modelin steel column analysis of anti-detonation[J]. Explosion And Shock Waves, 2017, 37(5): 957-963. doi: 10.11883/1001-1455(2017)05-0957-07
[11]	Zhang Yu, Li Guoqiang, Chen Kepeng, Chen Airong. Research advances of safety assessment of bridges under blast load[J]. Explosion And Shock Waves, 2016, 36(1): 135-144. doi: 10.11883/1001-1455(2016)01-0135-10
[12]	Wang Rui-li, Liu Quan, Wen Wan-zhi. Non-intrusive polynomial chaos methods and its application in the parameters assessment of explosion product JWL[J]. Explosion And Shock Waves, 2015, 35(1): 9-15. doi: 10.11883/1001-1455(2015)01-0009-07
[13]	LiuYu, HanFeng, DongNan, LuXi-cheng, LeiMing. Confidenceintervalestimationofsecurityprobabilityofcylindricalexplosionvesse[J]. Explosion And Shock Waves, 2013, 33(2): 200-206. doi: 10.11883/1001-1455(2013)02-0200-07
[14]	ZHAI Xi-mei, WANG Yong-hui. Dynamicresponseandexplosionreliefof reticulatedshellunderblastloading[J]. Explosion And Shock Waves, 2012, 32(4): 404-410. doi: 10.11883/1001-1455(2012)04-0404-07
[15]	ZHONG Guo-sheng, FANG Ying-guang, GU Ren-guo, ZHAO Kui. Safety assessment of structures by blasting vibration based on wavelet analysis[J]. Explosion And Shock Waves, 2009, 29(1): 35-40. doi: 10.11883/1001-1455(2009)01-0035-06

Supplements(0)

Cited By

Cited by

Periodical cited type(1)

Shengjie Sun，Jianwei Jiang，Shuyou Wang，Jianbing Men，Mei Li. Structural design of the fluted shaped charge liner using multi-section optimization method. Defence Technology. 2023(07): 249-262 .