Dynamic Response and Influence Factor Analysis of Steel Columns under Blast Loading

张秀华; 张宇; 段忠东; 李玉顺

doi:10.13409/j.cnki.jdpme.2014.01.011

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Dynamic Response and Influence Factor Analysis of Steel Columns under Blast Loading

更新时间：2025-12-11

- Dynamic Response and Influence Factor Analysis of Steel Columns under Blast Loading
- Vol. 34, Issue 1, Pages: 73-77+84(2014)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2014.01.011
  CLC： U312.1;TU391
- Published：2014
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[1]张秀华,张宇,段忠东,李玉顺.爆炸荷载作用下钢柱的动力响应与影响因素分析[J].防灾减灾工程学报,2014,34(01):73-77+84.

张秀华, 张宇, 段忠东, et al. Dynamic Response and Influence Factor Analysis of Steel Columns under Blast Loading[J]. 2014, 34(1): 73-77+84.
[1]张秀华,张宇,段忠东,李玉顺.爆炸荷载作用下钢柱的动力响应与影响因素分析[J].防灾减灾工程学报,2014,34(01):73-77+84. DOI： 10.13409/j.cnki.jdpme.2014.01.011.

张秀华, 张宇, 段忠东, et al. Dynamic Response and Influence Factor Analysis of Steel Columns under Blast Loading[J]. 2014, 34(1): 73-77+84. DOI： 10.13409/j.cnki.jdpme.2014.01.011.

摘要

采用有限元软件ANSYS/LS-DYNA

建立钢柱有限元模型

模拟爆炸荷载作用下钢柱的动力响应

并对影响钢柱动力响应的主要因素进行数值分析。考虑了不同爆炸荷载、材料失效应变、单元网格密度、柱高、柱截面尺寸和柱承担的轴向压力等参数的影响。通过对钢柱动力响应时程曲线进行分析

研究爆炸荷载作用下钢柱响应特性及其破坏机理;通过分析

得到各参数对其动力响应的影响规律。分析结果表明:增大柱的截面尺寸

能够降低柱跨中水平位移;增大柱截面高度

能有效地提高钢框架柱的抗爆承载力;在钢柱抗爆设计中

应控制其所承受的轴向压力大小

轴压比值不宜超过0.3。

Abstract

The finite element models of steel column were built by using finite element software ANSYS/LS-DYNA

and the dynamic responses of the steel column and its main influence factors were numerically analyzed.The influences of the different blast load

material failure strain

element mesh density

height and section size of steel column

and axial pressure of the steel columne were considered.The dynamic response time history curves of steel column were analyzed and response characteristics and damage mechanism of steel colum under blast loading were studied.Through analysis the law of each parameter′s influence on the response of the column was obtained.The results show that the horizontal displacement of the mid-span at the steel column can be reduce with the increase of the section size of column

and the blast resistance capacity of steel column can be effectively improved especially with increase of height of column section. In the design of anti-explosion of steel column

axial pressure of steel column should be controlled as the axial compression ratio should not be more than 0.3.

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references

爆炸荷载作用下钢框架柱冲击响应与破坏模式的数值模拟 [J]. 张秀华,张春巍,段忠东. 沈阳建筑大学学报(自然科学版) . 2009(04)

船用加筋板架爆炸载荷下动态响应数值分析 [J]. 梅志远,朱锡,刘润泉. 爆炸与冲击 . 2004(01)

Numerical modelling of square tubular steel beams subjected to transverse blast loads [J] . H.H. Jama,M.R. Bambach,G.N. Nurick,R.H. Grzebieta,X.-L. Zhao. Thin-Walled Structures . 2009 (12)

Deformation of mild steel plates subjected to large-scale explosions [J] . S. Chung Kim Yuen,G.N. Nurick,W. Verster,N. Jacob,A.R. Vara,V.H. Balden,D. Bwalya,R.A. Govender,M. Pittermann. International Journal of Impact Engineering . 2008 (8)

Deformation and fracture behaviour of plate specimens subjected to underwater explosion—a review [J] . R. Rajendran,K. Narasimhan. International Journal of Impact Engineering . 2005 (12)

Finite element analysis of steel beam to column connections subjected to blast loads [J] . Tapan Sabuwala,Daniel Linzell,Theodor Krauthammer. International Journal of Impact Engineering . 2004 (7)

Shear failure of a steel member due to a blast [J] . T Nonaka. International Journal of Impact Engineering . 2000 (3)

The deformation and tearing of thin square plates subjected to impulsive loads—An experimental study [J] . G.N. Nurick,G.C. Shave. International Journal of Impact Engineering . 1995 (1)

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