Impact of Energy Dampers in Improvement of Impulsive Response of Double Layer Grids Space Structures

Subject Areas : Mechanical Engineering

H. Zarrintala ¹ , A. Maleki ² , M. Darvishhashemi ³

1 - Department of civil engineering, Bonab Branch, Islamic Azad University, Bonab, Iran
2 - Department of Civil Engineering, Maragheh Branch, Islamic Azad University, Maragheh, Iran
3 - Department of civil engineering, Bonab Branch, Islamic Azad University, Bonab, Iran

Received: 2017-07-04 Accepted : 2017-09-20 Published : 2017-12-17

Keywords: Tube inversion device, Energy dampers, Force limiting device, Double layer grids (DLGS),

Abstract :

The main purpose of the study is to evaluate the effectiveness of these dead-points mono laterally in controlling the space location of the structures against the explosion loading in this regard. For the reason, nonlinear dynamical analyses on three kinds of structures under two layers’ space location with two dead-points of FLD (Force Limiting Device) and TID (Tube Inversion Device) and without dead-point for explosion loading have been carried out and the related results were compared together in this case. For the related analysis, ABAQUS/Explicit software has been applied efficiently. This study shows that the destructor of inversed energy of the TID has an influential impact on the reduction of the displacement in this case.

References:

[1]    Sheidaiee, M. R., “The Study of Double Layer Grids Behavior Against Progressive Bending”, Ph.D. thesis, Civil Engineering Faculty, Tabriz Univ., Tabriz, 2001.

[2]    Nariman Jahan, A., “The Impact of Energy Dead Points in Recovering Double Layer Structures Strike Response”, M. A. thesis, Islamic Azad Univ., Maragheh Branch, Maragheh, 2009.

[3]    Tahooni, Sh., “Planning Steel Structures”, 10th printing, Elmo Adab Publication, Iran, 2006.

[4]    El-Sheikh, A., “Effect of force limiting devices on behavior of space trusses”, Structural Engineering, Vol. 21, 1999, pp. 34-44.

[5]    Monir, H. S., “The Enhancement of Earthquake Resistance of a MRF by Using Tube Inversion Devices”, structures under shock and impact VIII, Greece, 2004, pp. 365-374.