1919 M St.

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Darren BruceMechanical Option
Feasibility of Ice Storage 1919 M St. Washington
D.C.
Darren Bruce Penn State University Architectural
Engineering Mechanical Option
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Darren BruceMechanical Option
Presentation Outline

• Introduction Background
• Existing Conditions
• Mechanical Redesign
• Electrical Redesign
• Structural Analysis
• Cost Analysis
• Conclusions

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Introduction Background
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Location
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Darren BruceMechanical Option
Project Team
Owner The Charles E. Smith Companies
Architect Weihle Design Group
Structural Engineer Robert Theobald Associates
MEP Engineer Girard Engineering
Abatement Consultant Consolidated Engineering Services
General Contractor Clark Construction Group
Mechanical Contractor PBM Mechanical, Inc
Electrical Contractor T.A. Beach
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Building History
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Darren BruceMechanical Option
Building History

• 265,000 sq.ft. of tenant space

• 82,000 sq.ft. of garage levels

• Originally built in 1964 for the Federal
  Commerce Commissions Headquarters

• 20,000,000 renovation took place in 1999

• The building was demolished down to the
  structural system and completely redesigned.

• Construction started in July of 1999 and was
  occupied by October of 2000

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Building Occupants

• Conservational International (300 Employees)
• McKee Nelson, LLP (130 Employees)
• Grace Digital Media (51 Employees)
• Plus several smaller firms (200 Employees)
• For a total of approximately 680 Employees

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Mechanical Redesign
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Existing Conditions
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Existing Conditions Air Side - 2 AHUs per
floor (14 total) - 196,000 CFM of SA provided to
the entire building - Fan Powered VAV boxes
along perimeter spaces - Shut Off VAV boxes in
the interior spaces
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Existing Conditions Water Side
- (2) 320 Ton Centrifugal Chillers - 44o
CHWT - 2400 gpm Cooling Tower
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Proposed Changes
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Design Goals
1. Lower Utility Costs 2. Decrease Equipment Size
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Ice Storage
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Structural Redesign
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Existing Conditions
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Existing Conditions Roof - 5000 psi concrete
- 8, Two-Way Concrete slab - 24 Concrete
columns _at_ 19 O.C. - Maximum Factored Load of
250 psf - Live Load of 30 psf
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Electrical Redesign
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Cost Analysis
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Conclusions
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Thanks!

• Penn State Faculty
• Dr. Bahnfleth
• Dr. Mumma

• Consolidated Engineering
• My Friends and Family
• My fellow AEs

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Questions??