Numerical Simulation of Square Steel Tube Beam Filled with Steel-Reinforced High-Strength Concrete Dynamic Response under Impact Load

Article Preview

Abstract:

Using ANSYS / LS-DYNA to study the dynamic response of square steel tube beam filled with steel-reinforced high-strength concrete under impact loading at different speeds. The numerical simulation results show that: At different conditions of speed, the concrete failure modes are different. The combined action of Steel tube and steel flange makes the stress wave propagation extremely complex in the beam, when the speed increased to a certain value, it made damage to the internal steel flange and flange lateral concrete under impact load, while the concrete between the top of steel flange and steel tube was protected by the combined action.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

2084-2087

Citation:

Online since:

September 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Zeng Ming-gen. Studies on mechanics behavior and experiment of anchorage zone in cable-pylon and cable-girder of Shanghai Yangtze River bridge[R].Shanghai: Tongji University,2007. ( In Chinese)

Google Scholar

[2] Wang Qing-xiang,Zhao Da-zhou,Guan Ping. Experimental study on the strength and ductility of steel tubular columns filled with steel-reinforced concrete[J].Engineering Structures,2004,26(7):907―915.

DOI: 10.1016/j.engstruct.2004.02.009

Google Scholar

[3] Li Yi,Li Jun-ping. Control of welding deformation and geometrical precision for the steel tower segments of the third Nanjing Yangtze River bridge[J].SteelConstruction1,2006,21(3):89-91( In Chinese)

Google Scholar

[4] Zeng Ming-gen. Studies on mechanics behavior of anchorage zone in cable-pylon of Sutong bridge[R].Shanghai: Tongji University,2003. ( In Chinese)

Google Scholar

[5] Zhu Meichun. Research on the mechanical properties of steel tubular columns filled with steel-reinforced concrete [D].Dalian:Dalian University of Technology,2005( In Chinese)

Google Scholar

[6] Zhao Tongfeng,Wang Lianguang,Zhao Shuang. Analysis of axially-loaded short columns of square steel tube filled with steel-reinforced high-strength concrete[J].Journal of Northeastern University,2008,29(10):1502-1504( In Chinese)

Google Scholar

[7] Hallquist J O. LS-DYNA keyword user's manual [M]. California: Livermore Software Technology Corporation, 2001:200-201

Google Scholar

[8] Holmquist T J, Johnson G R, Cook W H. AComputational constitutive model for concrete subjected to large strains, high strain rates and high pressures [C].14th International Symposium on Ballistics, 1995,591-600.

DOI: 10.1115/1.4004326

Google Scholar