T HE HE D UNCAN UNCAN C ENTER ENTER D OVER OVER , D ELAWARE ELAWARE R ACHEL ACHEL G INGERICH, INGERICH, S TRUCTURAL TRUCTURAL O PTION , PTION S ENIOR ENIOR T HESIS HESIS P RESENTATION RESENTATION A PRIL PRIL 15, 2008 15, 2008
P RESENTATION RESENTATION O UTLINE UTLINE A. Building Introduction B. Existing Steel Structural System C. Proposal Introduction D D D. Depth/Proposed Concrete Structural System th/P d C t St t l S t E. Construction Management Breadth g F. Acoustics Breadth G. Proposal Recommendation R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
B UILDING UILDING S TATISTICS TATISTICS Location: Dover, Delaware Area: 76, 557 SF Height: 93’-0” Stories: 6 total ~ Floor to floor height of 14’-0” ~ 5 floors and a penthouse on the top floor p Personal Photo: Taken August 16, 2007 ~ Balconies on 4 th and 5 th floors R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
B UILDING UILDING S TATISTICS TATISTICS Floor Occupancies ~ 1st-4th Floor: Open Flex Office Spaces ~ 5 th Floor: “The Outlook Center” Ballroom ~ 6 th Floor: Management Offices g Personal Photo: Taken August 16, 2007 Mechanical Rooms ~ Basement: se e : Mechanical Room Electrical Room Electrical Room R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
B UILDING UILDING C ONSTRUCTION ONSTRUCTION Overall Project Cost: $10.7 million Additional Tenant Fit-Out Cost: $46,000 Construction Start Date: June 2003 Construction End Date: June 2004 Photo by Jackson Architects: Taken July 23, 2003 Project Delivery Method: Project Delivery Method: Design-Build R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
E XISTING XISTING F RAMING RAMING S YSTEM YSTEM ~ 5” concrete on 2” composite metal deck ~ 24’x27’ typical bays of composite beams and girders R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
E XISTING XISTING L ATERAL ATERAL S YSTEM YSTEM ~ Steel Moment Frames ~ Flange welded/web bolted connections Personal Photo: Taken August 16, 2007 P l Ph T k A 16 2007 R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
E XISTING XISTING L ATERAL ATERAL S YSTEM YSTEM North-South Direction Line 4 R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
E XISTING XISTING R OOF OOF F RAMING RAMING P LAN LAN ~ Cold formed roof trusses spaced @ 24” o.c. ~ 1-1/2” metal roof deck R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
E XISTING XISTING F OUNDATION OUNDATION P LAN LAN ~ 16” dia. augercast piles with pile caps; 85 ton compressive capacity ~ 24”x24” concrete piers R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
R EASONS FOR EASONS FOR P ROPOSAL ROPOSAL ~ Two-way flat plate slab found to be comparative to existing in Technical Assignment #2 ~ Eliminate moment connections ~ Eliminate fireproofing ~ Increase mechanical cavity space ~ Reduce cost ~ Reduce Schedule ~ Improve acoustics for ballroom ~ Improve acoustics for floors adjacent to the ballroom ~ Improve acoustics for floors adjacent to the ballroom R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
R EASONS FOR EASONS FOR P ROPOSAL ROPOSAL ~ Two-way flat plate slab found to be comparative to existing in Technical Assignment #2 Change Structural System to Concrete ~ Eliminate moment connections ~ Eliminate fireproofing ~ Increase mechanical cavity space ~ Reduce cost ~ Reduce Schedule ~ Improve acoustics for ballroom ~ Improve acoustics for floors adjacent to the ballroom ~ Improve acoustics for floors adjacent to the ballroom R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
R EASONS FOR EASONS FOR P ROPOSAL ROPOSAL ~ Two-way flat plate slab found to be comparative to existing in Technical Assignment #2 Change Structural System to Concrete ~ Eliminate moment connections ~ Eliminate fireproofing ~ Increase mechanical cavity space Compare Cost & Schedule of Existing vs. ~ Reduce cost Proposed ~ Reduce Schedule ~ Improve acoustics for ballroom ~ Improve acoustics for floors adjacent to the ballroom ~ Improve acoustics for floors adjacent to the ballroom R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
R EASONS FOR EASONS FOR P ROPOSAL ROPOSAL ~ Two-way flat plate slab found to be comparative to existing in Technical Assignment #2 Change Structural System to Concrete ~ Eliminate moment connections ~ Eliminate fireproofing ~ Increase mechanical cavity space Compare Cost & Schedule of Existing vs. ~ Reduce cost Proposed ~ Reduce Schedule Compare Acoustic Performance of Existing vs. ~ Improve acoustics for ballroom Proposed Proposed ~ Improve acoustics for floors adjacent to the ballroom ~ Improve acoustics for floors adjacent to the ballroom R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
P ROPOSED ROPOSED F RAMING RAMING S YSTEM YSTEM ~ 1 st -4 th Floors: 12” two-way flat slab; #5 spaced @ 12” o.c. each way ~ 5 th Floor: 14” two-way flat slab, #5 spaced @ 10” o.c. each way R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
P ROPOSED ROPOSED F RAMING RAMING S YSTEM YSTEM ~ 6 th Floor: 12” one-way slab with beams, #5 spaced @ 9” o.c. each way R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
P ROPOSED ROPOSED L ATERAL ATERAL S YSTEM YSTEM ~ Shear walls replace existing North and South masonry stair towers ~ 8” thick shear walls with #4 spaced @ 12” o.c. vertical & #4 spaced @ 10” o.c. horizontal Personal Photo: Taken August 16, 2007 P l Ph T k A 16 2007 R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
P ROPOSED ROPOSED L ATERAL ATERAL S YSTEM YSTEM East-West Direction Line A R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
P ROPOSED ROPOSED L ATERAL ATERAL S YSTEM YSTEM East-West Direction Line A7 R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
P ROPOSED ROPOSED L ATERAL ATERAL S YSTEM YSTEM North-South Direction Line 4 R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
P ROPOSED ROPOSED R OOF OOF F RAMING RAMING S YSTEM YSTEM ~ Light steel framing with open web steel joists ~ 1-1/2” metal roof deck R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
P ROPOSED ROPOSED F OUNDATION OUNDATION S YSTEM YSTEM ~ Pile cap configurations controlled by geometry R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
P ROPOSED ROPOSED F OUNDATION OUNDATION S YSTEM YSTEM ~ 18” dia. augercast piles with pile caps; 105 ton compressive capacity ~ Columns connect directly to pile caps R ACHEL ACHEL G INGERICH INGERICH S TRUCTURAL TRUCTURAL O PTION PTION A PRIL 15, 2008 PRIL 15, 2008 T HE HE D UNCAN UNCAN C C ENTER ENTER D OVER, OVER, D ELAWARE ELAWARE
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