SLIDE 5 5
Breadth Study
Construction Management
˘ Existing bracing connections
Given:
˘ Bolted/welded shear end−plate connections ˘ Fillet welds
Determined:
˘ 3/16˜ weld ˘ 2 rows of bolts ˘ $55 each
Breadth Study
Construction Management
˘ Moment connections
Determined:
˘ Single−plate web connection:
» 3/8˜ x 12˜ » 5 7/8˜ Ø bolts » 2 5/16˜ fillet welds
˘ Tension flange−plate:
» 1˜ x 10−1/4˜ » 5/16˜ fillet welds (6˜ along each side, 10−1/4˜ along end)
˘ Compression flange−plate:
» 13/16˜ x 12.5˜ » 5/16˜ fillet weld (6˜ along each side)
˘ No doublers or stiffeners required ˘ $250 each
Breadth Study
Construction Management
$19,000 Alternative #2 $28,000 Alternative #1 $20,000 Existing System
Total Cost of Connections (material, fabrication, & installation):
Breadth Study
Construction Management
˘ Alternative #2, with modified windows + $11,096.71 total − $127,989.76 glass + $86,686.21 stone + $52,400.26 brick
Building Envelope Costs (as compared to existing design):
Breadth Study
Construction Management
$112,780 Alternative #2 (with modified windows) $101,681 Alternative #2 (with bracing exposed) $142,359 Alternative #1 $162,361 Existing System
Total Costs:
Breadth Study
Mechanical
˘ Carrier’s ˆHourly Analysis Program 4.2˜ (HAP)
Mechanical system components
˘ 10 packaged water−cooled air conditioning units ˘ 2 cooling towers (1 for each unit) ˘ 3 hydronic unit heaters ˘ 2 hydronic cabinet unit heaters ˘ 1 electric unit heater ˘ 4 hot water boilers
Current utility rates
˘ Department of Energy’s website
