Physical Security Design Manual: Chapter 7 to 11

This chapter provides requirements for blast resistant structures and includes requirements for the prevention of progressive collapse and the hardening of critical columns. All building components requiring blast resistance must be designed using established methods and approaches for determining dynamic loads, structural detailing, and dynamic structural response. Alternative analysis and mitigation methods are permitted, provided that the performance level is attained.

While structural hardening makes the structure resistant to a specific threat, design to resist progressive collapse increases the robustness of the structure to an undefined event. This threat independent approach provides redundant load paths, ductility, and continuity. Designers may apply static and/or dynamic methods of analysis to demonstrate compliance with this requirement.

These requirements are in addition to the requirements for conventional structural design, including the provisions for hurricane, earthquake, and any other extreme loading condition required by code. The magnitude of GP1, GP2, W1, and W2 are defined in the Physical Security Design Standards Data Definitions that shall be stored separate from this document. The minimum physical requirements for the construction of active and passive vehicle barriers are also included in this chapter.

Connecting corridor concourse and bridges and freestanding greenhouses shall be exempt from the requirements of Chapters 6 and 7. Physical security requirements for temporary buildings shall be determined on a case by case basis by the security staff having cognizance.