This is a student-generated Capstone Project e-Portfolio (CPEP) produced in conjunction with the AE Senior Thesis e-Studio.


Building Statistics

* General Building Statistics: 

·        Location and site:         2300 Dulles Station Blvd. 
                                       Herndon, VA
·        Building Occupant Name:  people working at offices

Owner:                     Tramell Crow Company, http://www.trammellcrow.com
Architect:                 Cooper Carry, Inc., www.coopercarry.com
 MEP:                       R.G. Vanderweil Engineers, Inc. www.vanderweil.com
 Structural:               Haynes Whaley Associates, Inc., www.hayneswhaley.com
 Landscape:             EDAW, www.edaw.com 

·        Timeline:      Start: 10/1/2005 & Finish: 3/2007
·        Cost:             Total cost of the project is $20 million

 

* Building system Information:

 Architecture:

The Dulles station building is few feet from the Virginia State Highway 267 and it less than two miles |
from the Washington Dulles International Airport. The six story office building looks as if it has two
volumes, one opaque the other transparent. Almost each floor is identical. The central part of floor consists
of the mechanical, electrical room, elevators and stairs. The facade of Dulles Station is composed of precast
concrete and curtain wall system. An eight story parking structure will be shared by several buildings including
 the Dulles Station. This parking structure will provide 1,297 standard parking spaces including 32
handicapped spaces. Also, five spaces are provided for loading.                                                   
 

Building Envelope:

The two primarily components of the exterior wall systems are precast concrete and curtain walls. The architectural 
precast concrete panel has 6.5” thickness. Most of the glass used in the building is blue-green glass with 1”
 insulated heat strengthened. Dulles station has two canopies on the south. One is at the entry has a length of 
70 ft and width of 3’-11”. The other canopy is to the southeast has a length of 69’-4” and width of 5’-2”. 
 
Structural:

The primarily structural system for Dulles station is cast in place concrete with post-tensioned slabs & slabs/beams.  
The floors are 7” two-way post-tensioned slabs. The Building has two bay sizes: 43’ x 30’ & 24’ x 30’. There are some
 beams that reach 72”x18” in size. Most of the columns have a size of 24”x24”. The building rests on caissons that 
have a depth of 50 ft. These caissons range  from 30” to 66” in diameter. The slab on grade is 4 inches thick with one 
layer 6” x 6” w1.4 x w1.4 welded wire fabric over a 10 mil polyethylene sheets. The lateral load resistance is distributed 
through the wide and shallow slab-beams that act as moment frames in the north/south direction. The building aspect ratio 
equals to 2.15, which is high enough to assume that the north/south direction will control the lateral design.  In the east/west
direction the columns and slabs of 7 inch thick will provide the needed lateral resistance.
 
 
 Vertical Transportation:
 
The Dulles Station has five elevators located at the center of the building. They serve all of the six floors of the 
building. The model for these elevators is CabForms Series 3000B. They have narrower vertical panels. 
The building also has two interior stairs that serve all the floors as well.
 
 
 Fire Protection:

The Dulles Station is fully sprinkled.  Smoke detectors are connected to the fire alarm system. Some of 
structures elements that have 2 HR fire resistance: floor/ceiling, column, beams & shafts. A fire pump, 
which located on the 1st floor, is used to pressurize water to upper floor.
 
Mechanical:
 
The Dulles Station has one cooling tower, 642 tons, located on the roof. The building provides eight electric 
heaters where four of them placed on the roof. Each floor has an air condition unit that has total of 30,000 CF. 
Also, 16 condensing unit fans located on the roof are used as air handling units. 
 
Electrical:
 
The Dulles Station has 120/208V – 3 phase – 4 wire panel system. Another system within the building is 
277/480 Volt- 3 phase- 4 wire panel.
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This Page was last updated on April 6, 2006 , By Mohammed and is hosted by the AE Department ©2005