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Effect of shear wall in the dynamic response of structure under blast loading- an analytical approach

Tejaswi B.G. and R. Shanthi Vengadeshwari

Paper No.: 537

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Vol.: 54

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No.: 2-4

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December, 2017

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pp. 57-67

Abstract

 

The consequences of lateral load are devastating in nature compared to gravity loads. In the present scenario the effect of blast load on structures is gaining importance and needs attention. During explosion impulsive load is developed which is highly nonlinear and lasts for milliseconds resulting in catastrophic events. Shear wall has high in plane stiffness and strength which can be used to simultaneously withstand large horizontal loads and support gravity loads. Provision of shear wall allows dissipation of energy in controlled manner in the near field explosion. This research paper concentrates on the effectiveness of shear wall in the dynamic response of the structure while resisting the high intensity blast load acting in the proximity of the structure. Lateral displacement and story drift are the primary parameters considered. The blast load is applied as a function of time in the form of triangular load on finite element model using commercially available software SAP2000.
Keywords: Blast Load, Time-history Analysis, Shear Wall, Peak Reflected Pressure

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