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Volume 03 Issue 02
   Volume & Issue: Volume 03 Issue 02



Evaluation of Friction Damper Device Effect on Structural Response under Blast Loads

  Volume 03,Issue 02

 

Author :

Ghasem Dehghani Ashkezari, Mojtaba Naeej

 

Abstract :

The increase in the number of terrorist attacks especially in the last few years has shown that the effect of blast loads on structures is a serious matter that should be considered in the important structure design process. Decreasing the damages that can be caused by the explosion is the main purpose of many researches. This paper evaluates the structural response under blast loads. Three moment frames with 3, 6 and 8 stories equipped with the mentioned damper are investigated under blast load and dynamic behaviors of them have been evaluated. The effect of strain rate for steel material also considered. The response of frames with and without dampers is compared in terms of inter-story drifts, maximum floor displacements and base shear. It is found that response of the structures can be reduced dramatically using friction dampers. Moreover, the reduction percentage of roof displacement of frames will be decreased by increasing the number of stories.

 

Keywords :

Blast loads, Friction damper, Time history analysis, Maximum displacement, Inter-story drifts.

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