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Suspended Polycarbonate Shield to Defeat Terrorist Threats

by W. A. Keenan, US Naval Civil Engineering Lab, Port, Hueneme, CA, USA,
G. E. Meyers, US Naval Civil Engineering Lab, Port, Hueneme, CA, USA,



Document Type: Proceeding Paper

Part of: Dynamics of Structures

Abstract:

The Navy Civil Engineering Laboratory is conducting research on a window concept that offers great potential for overcoming the disadvantages of blast resistant windows. The concept is a polycarbonate shield mounted in a steel frame and suspended from two steel cables immediately behind the window opening. The steel cables are connected to the ceiling above. For maximum effectiveness, the glass in the window is covered with plastic security film. The paper describes the conceptual design of the shield, dynamic response characteristics of the shield to projectiles and blast loads, and preliminary design methods for the polycarbonate, frame, and cables needed to protect interior spaces against effects from bombs exceeding several thousand pounds of high explosive.

Subject Headings: Cables | Suspended structures | Windows | Load and resistance factor design | Dynamic structural analysis | Building design | Blasting effects

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