top of page

STRUCTURAL DEPTH

By changing the usage of the lower portion of the building to a government office that section of the building will now be designed for blast loading.  This will be done two ways, first with a blast resistant design based on a blast load from a small sized device such that would get through screening at the front of the building such as a briefcase or backpack.  Secondly the building will be designed for progressive collapse in the event that a device larger than what could get through screening is detonated on the exterior of the building causing a supporting column to be eliminated.  In addition to the structural components nonstructural components namely the façade will need to be redesigned.  This is due to the possibility of the façade breaking away from the building and causing increased risk to human life.  At the completion of this depth the building we be able to maintain structural stability in the event of an attack.

 

MECHANICAL SECURITY BREADTH

When designing for a blast scenario the mechanical system must also be considered.  Air intake vents that are in areas were blasts could be set off will need to be moved so that the mechanical system can stay operational in the event of an attack.  This may lead to resizing of ductwork and possibly the resizing of mechanical equipment.  With the possibility of the glazing changing due to blast resistant design the solar heat gain of the building will also need to be checked.  A significant change in the solar heat gain could result in a need to resize the mechanical equipment.  In addition to and attack the security of the system during severe weather must also be addressed due to the fact that a large portion of mechanical equipment is located in the basement.  The basement and first floor will be designed for flood protection to provide a operational mechanical system during severe weather.

 

STRUCTURAL PROPOSAL

CONSTRUCTION BREADTH

With many systems changing in the structural depth and mechanical breath the construction of the building will also be effected.  An analysis of the critical path for construction will need to be done to determine if additional time is needed in the construction process.  A cost analysis will also be needed to see the financial impact of changing the use of the building and designing for blast.

 

MAE REQUIRMENTS

This proposal will incorporate many components of graduate coursework.  Including AE 530 Computer Modeling of Building Structures which will aid in the development of 3D and 2D models needed to analyze the redesign of the structure.  Additionally AE 534 Analysis and Design of Steel Connections will be helpful in the event that under the new loading the connections of steel members will need to be redesigned.

 

bottom of page