Pittsburgh, PA
Adam Kaczmarek | Structural Option
Dr. Linda Hanagan
@ CONSOL Energy Center
Pittsburgh, PA
Cambria Suites Hotel
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
Cambria Suites Hotel
I.
Project Background
II. Scope of Work
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
III. Structural Depth Study
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
Adam Kaczmarek | Structural Option
Dr. Linda Hanagan
@ CONSOL Energy Center
Pittsburgh, PA
Pittsburgh, PA
Cambria Suites Hotel
Cambria Suites Hotel
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
Location:
•
1320 Centre Avenue, Pittsburgh, PA
Building Statistics:
•
•
•
120,000 SF
7 stories above grade
Overall height of 102’-2”
V. Construction Management Breadth
Project Statistics:
VI. Summary of Conclusions
•
•
•
VII. Acknowledgments
$25 Million
Design-Bid-Build delivery method
Nov. 2009 – Dec. 2010
@ CONSOL Energy Center
Pittsburgh, PA
I.
Project Background
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
Existing Structural System
Foundation:
•
4” slab on grade
•
Cast in Place Concrete Caissons
iii. Impact on Foundation
•
30”, 36”, & 42” diameters
IV. Architectural/Façade Breadth
•
Spaced 15’-0” to 30’-0” apart
V. Construction Management Breadth
•
4000 PSI concrete
VI. Summary of Conclusions
•
End bearing capacity of 15 ton/SF
VII. Acknowledgments
•
Grade Beams:
•
30”-48” in width
•
36”-48” in depth
•
3000 PSI concrete
@ CONSOL Energy Center
Pittsburgh, PA
I.
Project Background
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
Existing Structural System
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
Gravity System:
•
10” precast hollow-core concrete plank
ii. Lateral Force Resisting System
•
Exterior CMU load bearing walls
iii. Impact on Foundation
•
Interior steel frame
IV. Architectural/Façade Breadth
V. Construction Management Breadth
Lateral Force Resisting System:
VI. Summary of Conclusions
•
VII. Acknowledgments
Reinforced concrete masonry shear walls
•
Typically 8” or 12” thick CMU walls
@ CONSOL Energy Center
Pittsburgh, PA
I.
Project Background
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
Problem Statement:
•
Existing structural system currently the
most efficient and economical
•
Design equally effective and efficient
building system
•
High overall building weight
Problem Solution:
•
Design lighter structural system
•
Girder-Slab Composite Steel and
Precast System
•
Specially designed D-Beams
•
Concentrically Braced Frames
@ CONSOL Energy Center
Pittsburgh, PA
I.
Scope of Work
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
Project Goals
Structural Depth Study:
•
•
•
Reduce overall building weight
Optimize gravity and lateral systems
Impact on foundation
Architectural/Façade Breadth Study:
•
•
Research façade options for building redesign
Address thermal effects of exterior facades
VI. Summary of Conclusions
VII. Acknowledgments
Construction Management Breadth Study:
•
Impact on construction schedule and cost
@ CONSOL Energy Center
Pittsburgh, PA
I.
Scope of Work
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
Girder-Slab System
II. Scope of Work
III. Structural Depth Study
•
Composite Steel and Precast System
•
Mid to High-Rise Residential Structures
•
Light Weight
•
Offers Rapid Construction
IV. Architectural/Façade Breadth
•
Reduces Building Height
V. Construction Management Breadth
•
Requires Minimum Fireproofing
VI. Summary of Conclusions
•
Meets Required Sound (STC) Ratings
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
VII. Acknowledgments
www.girder-slab.com
@ CONSOL Energy Center
Pittsburgh, PA
I.
Structural Depth Study
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
Framing Plan
•
•
•
•
•
D-Beams limited in availability
Typical bay is 18’-0” x 27’-6”
Columns aligned with room partition walls
Precast planks span East/West
D-Beams span North/South
@ CONSOL Energy Center
Pittsburgh, PA
I.
Structural Depth Study
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
@ CONSOL Energy Center
Pittsburgh, PA
I.
Structural Depth Study
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
DB 9x46 Properties
Steel Section:
• Is = 195 in4
• St = 33.7 in3
• Sb = 50.8 in3
• Mall = 84 ft-k
• tw = 0.375 in.
Transformed Section:
• It = 356 in4
• St = 68.6 in3
• Sb = 80.6 in3
• B = 5.75 in.
D-Beam Design
• Initial Load – Precomposite
• MDL = 62.37 k-ft. < 84 ft-k = Mall
• Total Load – Composite
• Mtot = 151.5 ft-k
• Sreq = 60.6 in3 < 68.6 in3 = St
• ΔSUP = 0.5 in. < 0.6 in. = ΔLL
• Check Compressive Stress on Concrete
• Fc = 2.25 ksi > 2.16 ksi = fc
• Check Bottom Flange Tension Stress
• Fb = 45 ksi > 28 ksi = fb
• Check Shear
• Fv = 20 ksi > 15.6 ksi = fv
@ CONSOL Energy Center
Pittsburgh, PA
I.
Structural Depth Study
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
Column Design
ii. Lateral Force Resisting System
• Comply with LRFD methods and AISC
Steel Construction Manual
iii. Impact on Foundation
• Optimal members designed by RAM
IV. Architectural/Façade Breadth
• Resist gravity loads only
V. Construction Management Breadth
• Spliced above 2nd and 5th floor levels
VI. Summary of Conclusions
• Sizes range from W10x33 to W12x87
VII. Acknowledgments
@ CONSOL Energy Center
Pittsburgh, PA
I.
Structural Depth Study
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
Lateral Force Resisting System
General Assumptions and Considerations:
• Only lateral members were modeled
• Floor diaphragms modeled as rigid area elements
• Gravity loads applied as additional area masses
• Accidental and inherent torsion considered
Braced Frame Assumptions and Considerations:
• Columns pinned at base
• Columns in braced frames were fixed
• Beams and braces pinned
• P-Delta effects taken into account
@ CONSOL Energy Center
Pittsburgh, PA
I.
Structural Depth Study
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
Design Wind and Seismic Loads
•
Design wind and seismic load cases were
calculated
•
Loads manually applied to ETABS model
Controlling Load Combinations (ASCE 7-05)
•
•
•
Design Wind Load Cases: Controlling Base Shears and Overturning Moments
Story
Summartion
Summartion
Summartion
Summartion
Summartion
Summartion
Summartion
Summartion
Point
0,0,Base
0,0,Base
0,0,Base
0,0,Base
0,0,Base
0,0,Base
0,0,Base
0,0,Base
Load
Case 1X
Case 1Y
Case 2X
Case 2Y
Case 3
Case 4
Case EX
Case EY
FX
-139.20
0.00
-104.39
0.00
-104.39
-78.36
-225.89
0.00
FY
0.00
-479.50
0.00
-359.62
-359.62
-269.97
0.00
-225.89
FZ
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
MX
0.00
25364.80
0.00
19023.74
19023.74
14281.11
0.00
14408.67
MY
-7377.10
0.00
-5532.30
0.00
-5532.30
-4153.11
-14408.67
0.00
Wind - North/South direction
MZ
7034.70
-52504.20
3726.84
-51228.20
-34102.52
-35659.47
11764.63
-25392.93
1.2D + 1.6 WY + 1.0L + 0.5Lr
Seismic – East/West direction
•
0.9D + 1.0EX
@ CONSOL Energy Center
Pittsburgh, PA
I.
Structural Depth Study
Cambria Suites Hotel
PRESENTATION OUTLINE
Structural Depth Study
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
Frame 2
@ CONSOL Energy Center
Pittsburgh, PA
I.
Cambria Suites Hotel
PRESENTATION OUTLINE
Relative Story Stiffness
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Relative Story Stiffness, Ri
Riy = Kiy /Kiy,total
Gravity System
O
ii. Lateral Force Resisting System
iii. Impact on Foundation
8
C
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
2
M
M.2
Frame C Frame M Frame M.2 Frame O
0.507
0.034
0.044
0.415
0.506
0.035
0.045
0.414
0.504
0.036
0.047
0.413
0.501
0.038
0.050
0.411
0.498
0.040
0.053
0.409
0.492
0.043
0.058
0.406
0.481
0.048
0.067
0.404
0.452
0.066
0.088
0.394
Frame C: 49.25%
Frame O: 40.8%
Frame M & M.2: 9.95%
Relative Story
Stiffness, Ri
Rix = Kix/Kix,total
Frame 2 Frame 8
0.605
0.395
0.602
0.398
0.598
0.402
0.593
0.407
0.588
0.412
0.581
0.419
0.573
0.427
0.553
0.447
Frame 2: 58.7%
Frame 8: 41.3%
@ CONSOL Energy Center
Pittsburgh, PA
I.
Structural Depth Study
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
Drift and Displacement
II. Scope of Work
Wind
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
Controlling Wind Drift (X-Direction)
Level
Roof
7
6
5
4
3
2
Plaza
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
Seismic
Controlling Seismic Drift (X-Direction)
Height Above Allowable Drift Total Drift
Adequate?
Ground, h (ft) Δallowable = h/400 (ETABS)
86.833
76.833
66.833
56.833
46.833
36.833
26.833
14.833
2.60
2.30
2.00
1.70
1.40
1.10
0.80
0.44
1.37
1.17
0.99
0.82
0.64
0.47
0.32
0.14
OK
OK
OK
OK
OK
OK
OK
OK
Level
Roof
7
6
5
4
3
2
Plaza
Level
Roof
7
6
5
4
3
2
Plaza
10
10
10
10
10
10
12
14.83
0.20
0.20
0.20
0.20
0.20
0.20
0.24
0.30
0.005
0.005
0.004
0.004
0.004
0.003
0.002
0.001
OK
OK
OK
OK
OK
OK
OK
OK
Controlling Seismic Drift (Y-Direction)
Controlling Wind Drift (Y-Direction)
Height Above Allowable Drift Total Drift
Adequate?
Ground, h (ft) Δallowable = h/400 (ETABS)
86.833
2.60
1.91
OK
76.833
2.30
1.56
OK
66.833
2.00
1.36
OK
56.833
1.70
1.1
OK
46.833
1.40
0.86
OK
36.833
1.10
0.62
OK
26.833
0.80
0.48
OK
14.833
0.44
0.06
OK
Height of
Allowable Story Drift Total Drift
Adequate?
Story, hsx (ft)
Δallowable = 0.02hsx
(ETABS)
Level
Roof
7
6
5
4
3
2
Plaza
Height of
Allowable Story Drift Total Drift
Adequate?
Story, hsx (ft)
Δallowable = 0.02hsx
(ETABS)
10
0.20
0.015
OK
10
0.20
0.014
OK
10
0.20
0.013
OK
10
0.20
0.012
OK
10
0.20
0.01
OK
10
0.20
0.007
OK
12
0.24
0.007
OK
14.83
0.30
0.002
OK
@ CONSOL Energy Center
Pittsburgh, PA
I.
Structural Depth Study
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
Impact of Lateral Loads
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
Building Weight
Base Shear
Total Moment
Existing Building Design
20,223 kips
508.03 kips
29,463 ft-k
New Building Design
14,260 kips
228.16 kips
13,468 ft-k
@ CONSOL Energy Center
Pittsburgh, PA
I.
Structural Depth Study
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
Impact on Foundation
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
Stress Due to E/W Seismic Loads
•
1.6% of the Dead Load
Stress Due to N/S Lateral Loads
•
Concrete Caissons
•
Lighter building weight
•
Reduced loads to foundation
•
Foundation expected to reduce amount of
concrete and reinforcement
1.5% of Dead Load
Number of Caissons
Structural System
No. of Caissons
Existing CMU System
74
Redesigned Steel
System
76
@ CONSOL Energy Center
Pittsburgh, PA
I.
Structural Depth Study
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
•
Analyze thermal effects of alternative facades
III. Structural Depth Study
•
Compare construction cost and time
•
ASHRAE Fundamentals Handbook
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
•
R-values
iii. Impact on Foundation
•
Tx = Toutdoor + (Tindoor – Toutdoor)(ΣRo-x/ Σ Ro-i)
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
•
Façade alterations on North façade only
@ CONSOL Energy Center
Pittsburgh, PA
I.
Architectural/Façade Breadth
Cambria Suites Hotel
PRESENTATION OUTLINE
Brick Vaneer System
Project Background
Thermal Gradients
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
Existing CMU/Masonry System
Between
Material
0-1
1-2
2-3
3-4
4-5
5-6
6-i
Total
ΣRo-x
Temperature
(°F)
(°F-ft -h/BTU)
0.17
2
0.81
5.75
1.79
10.3
12.06
57.9
13.09
62.7
13.55
64.9
14.01
66.98
14.66
70
2
U-Value = 0.0682 (BTU/°F-ft2-h)
Between
Material
ΣRo-x
Temperature
(°F)
(°F-ft2-h/BTU)
0-1
0.17
2
1-2
0.81
5.62
2-3
1.79
10
3-4
1.91
10.54
4-5
14.1
65.08
5-i
14.56
67.14
Total
15.2
70
U-Value = 0.0658 (BTU/°F-ft2-h)
Curtain Wall System
Between
Material
ΣRo-x
2
Temperature
(°F)
(°F-ft -h/BTU)
0-1
0.17
2
1-2
2.045
27.62
2-3
0.98
38.95
3-i
2.045
62.6
Total
0.64
70
U-Value = 0.17 (BTU/°F-ft2-h)
@ CONSOL Energy Center
Pittsburgh, PA
I.
Architectural/Façade Breadth
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
Cost/Time Comparison
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
Façade of Existing System
Daily Output
Construction
Time
$578,096
159
120 days
Labor Cost
Total Cost
Daily Output
Construction
Time
$33.50
$7.05
$771,099
205
93 days
$6.95
$15.55
$427,860
230
83 days
S.F.
CMU/Brick System
19,016
IV. Architectural/Façade Breadth
Wall System
S.F.
Crew Size
Material Cost
V. Construction Management Breadth
Curtain Wall
System
19,016
2 Glaziers, 2
Structural
Steel Workers
Brick Veneer
System/Metal
Stud Backup
19,016
3 Bricklayers,
2 Bricklayer
Helpers
ii. Lateral Force Resisting System
iii. Impact on Foundation
VI. Summary of Conclusions
VII. Acknowledgments
Crew Size
Total Cost
Wall System
Material Cost/SF
Labor Cost/SF
3 Bricklayers,
3 Bricklayer
$9.40
$21.00
Helpers
Façade Systems for Redesigned System
@ CONSOL Energy Center
Pittsburgh, PA
I.
Architectural/Façade Breadth
Cambria Suites Hotel
PRESENTATION OUTLINE
Existing Construction Schedule
Project Background
Construction Schedule
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
Existing Structural System
•
Start Date – January 6, 2010
Finish Date – August 10, 2010
•
•
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
•
Redesigned Structural System
•
•
Start Date – January 6, 2010
Finish Date – May 31, 2010
Redesigned Construction Schedule
@ CONSOL Energy Center
Pittsburgh, PA
I.
Construction Management Breadth
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
Cost Estimate of Existing System
Material
Cost/Unit
2.62
3.65
Material
Cost/Unit
84
46
68
1.31
Labor
Cost/Unit
4.03
6.25
Labor
Cost/Unit
2.7
0
3.45
0.29
Equipment
Cost/Unit
0
0
Equipment
Cost/Unit
1.65
0
1.56
0.04
Total
Cost/Unit
6.65
9.9
Total
Cost/Unit
88.35
46
73.01
1.64
Total Cost w/
O&P
9.35
14
Total Cost w/
O&P
99
0
83
1.95
Unit
Material
Cost/Unit
Labor
Cost/Unit
Equipment
Cost/Unit
Total
Cost/Unit
Total Cost w/
O&P
Total Cost
SF
7.5
0.95
0.53
8.98
10.55
1266000.00
Shearwalls
Amount
Unit
8" CMU, reinforced
12" CMU, reinforced
59904
12339
SF
SF
Steel
Amount
Unit
Columns
Baseplates
Beams
Fireproofing
1224
52.2
2888
27180
LF
SF
LF
SF
Concrete
Amount
10" P.C. Plank
120000
Total Cost of Existing System:
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
560102.40
172746.00
Total Cost
121176.00
2401.20
239704.00
53001.00
Material
Cost/Unit
84
46
62
47.14
1.31
Labor
Cost/Unit
2.7
0
3.99
3.79
0.29
Equipment
Total
Total Cost
Cost/Unit Cost/Unit w/ O&P
1.65
88.35
99
0
46
0
1.8
55.29
63.5
2.32
53.25
n/a
0.04
1.64
1.95
Unit
Material
Cost/Unit
Labor
Cost/Unit
Equipment
Total
Total Cost
Cost/Unit Cost/Unit w/ O&P
SF
7.2
1.07
Amount
Unit
Columns
Baseplates
Beams
Braces
Fireproofing
4986
119.2
9435
2368
95400
LF
SF
LF
LF
SF
Concrete
Amount
8" P.C. Plank
120000
0.6
8.87
10.45
Total Cost of Redesigned System:
•
Costs unaccounted for:
•
•
Foundation
Steel Connections
Cost Comparison
2415130.60
Cost Estimate of Redesigned System
Steel
Cost of Structural Systems
Total Cost
Total Cost
493614.00
5483.20
599122.50
126096.00
186030.00
Total Cost
1254000.00
2664345.70
Component
Existing System
Redesigned System
Additional Cost
CMU Walls
Steel Bracing
Steel Framing
Pre-Cast Plank
Total
$732,848.40
$0.00
$416,282.20
$1,266,000
$2,415,130.60
$0.00
$126,096.00
$1,284,249.70
$1,254,000
$2,664,345.70
-$732,848.4
$126,096
$994,063.5
-$12,000
$249,215.1
@ CONSOL Energy Center
Pittsburgh, PA
I.
Construction Management Breadth
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
•
Girder-Slab Composite Steel and Precast System
•
Sufficiently designed for strength and serviceability
requirements
ii. Lateral Force Resisting System
•
Reduced overall building weight
iii. Impact on Foundation
•
Framing plan conformed easily to existing floor layout
•
Maintained floor-to-ceiling height
i.
Adam Kaczmarek
Gravity System Redesign
Gravity System
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
Lateral Force Resisting System Redesign
•
•
Concentrically Braced Frames
• Lighter weight
• Fast construction
• Economical
Limit drift and displacement
Impact on Foundation
•
•
•
Reduced overturning moment
Reduced base shear
Reduce size of foundation
Architectural/Façade Breadth
•
Brick veneer system is most efficient
Construction Management Breadth
• Reduced schedule
•
Minimal increase in cost
If a minimal cost increase and minor architectural layout
changes were not a concern, the redesigned structural
system could be implemented as an alternative design.
@ CONSOL Energy Center
Pittsburgh, PA
I.
Summary of Conclusions
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
Atlantic Engineering Services
•
•
•
Chris Kim
Andy Verrengia
Tim Jones
The Pennsylvania State University
•
•
•
•
Dr. Linda Hanagan
Prof. Robert Holland
Prof. Kevin Parfitt
The entire AE faculty and staff
Horizon Properties Group, LLC
•
J.P. Morgan
DLA + Architecture & Interior Design
•
Joe Sepcic
Snavely Development Company
•
Greg Osborne
All my friends, family, and classmates for their
unconditional support and encouragement
@ CONSOL Energy Center
Pittsburgh, PA
I.
Acknowledgements
Cambria Suites Hotel
PRESENTATION OUTLINE
Project Background
II. Scope of Work
III. Structural Depth Study
Structural Option
Spring 2011, Hanagan
Adam Kaczmarek
i.
Gravity System
ii. Lateral Force Resisting System
iii. Impact on Foundation
IV. Architectural/Façade Breadth
V. Construction Management Breadth
VI. Summary of Conclusions
VII. Acknowledgments
Questions & Comments
@ CONSOL Energy Center
Pittsburgh, PA
I.
Cambria Suites Hotel
Cambria Suites Hotel
PRESENTATION OUTLINE