Safe

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Safe!

• The Renovation of a
• Century-old Warehouse into a Californian Ballpark

Project done by Kieran Neary and Ricky Coombs
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Introduction
An explanation of the steps taken to renovate an
old Western Metal Supply Company building into a
state of the art baseball stadium.
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Architects Working on this Project
-HOK Sport Venue Event (Kansas City, Kansas
Missouri) -Heritage Architecture
Planning (San Diego, California) -Antoine Predock
Architect (Albuquerque, New Mexico)
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Background
San Diego Padres decided to build a new ballpark.
They wanted a site downtown near Gaslamp Quarter
and the San Diego Convention Center.
One site seemed perfect (in terms of
location) Big problem a historic masonry
warehouse occupied site (designed by Sand Diego
architect, Henry Lord Gay in the early 20th
century)
Building possessed industrial architecture that
distinguished that section of San Diego so
renovation of ballpark would have to
preserve/reuse structure and its architecture.
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Process
The process to renovate the original structure a
Western Metal Warehouse, consisted of four
critical steps.
-Assessing the existing condition of the
presented building
-Determining its gravity load capacity
-Altering structure so that it could perform new
functions
-Seismically strengthening the building
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Framing Features
Gravity Framing System -determined to be
acceptable for project (would be able to support
additions)
Additions to Flooring -First Level filler beams
-Upper Two Levels timber beams added between
existing beams (supported by sliding onto
blocking into place above girders) best looking
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-Structural Decking -4 concrete topping poured
over plastic sheeting protecting original wood
(4 solid planks covered by 7/8 sheathing
planks)
Preservation Requirements -Preservation of Old
Beams w/ modified additions mimicking old
beams -Preservations of Roof gradually
lowered/flattened, new roof built above original-
old roof hangs from new framing
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Specialty Framing Features
Subtractions Occurred where major new openings
were required for ballpark functionality -floor
openings for escalators (vertical steel tubes
brace masonry piers against lateral loads tied
back to floors to carry lateral loads
horizontally across openings) -openings in walls
for views of ballpark from planned
suites (lintels added to ensure masonry was
supported at all times)
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Additions -ramps and landings (permit
circulation between old and new
flooring) -cantilevered balconies at each suite
placed on two steel girders balanced on steel
brackets connected to internal concrete posts.
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Requirements for Building
(Seismic Design)
-Renovation required to be designed in accordance
to California Historical Building Code (1998)
seismic design must be based on forces equal to
75 of values established by 1995 Cal. Building
Code
Selected Design-3 sided box- (3 walls with
reinforced concrete liner) leaves western wall
exposed wall openings on east, south, and north
for max. amount of brick left showing
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-New concrete and steel posts added to meet
requirements in 1994 Uniform Code for Building
Conservation for URM walls
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-Cantilevers made stronger/stiffer by truss
work to avoid potential of and uncomfortable
sensation of bouncing/instability (1997 Uniform
Building Code seismic activity or value R
requirement)
Bridges connecting grandstand and garden
buildings -designed as cantilevers to grandstand
in order to move freely at garden building side
in earthquake
Other features effected by requirements -precast
stepped seating -pedestrian ramps
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Special PETCO Features
-viewing spaces along fences -standing-room
zones in grandstand -41,000 seats -60
suites -family-friendly venue including field for
play and area designated for batting practice
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Seating Bowl Seven Units -(1) left field under
scoreboard -(2) suites -(3-5) grandstand
seats -(6) right outfield bleachers -(7)
centerfield bleachers
Garden Buildings (behind home plate) -main
concourse level -consist of lounges, kitchens,
offices, and more
Resulting gap forms boulevard
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Overall Design Motif Goal -to capture ambiance
of ballpark from the past
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In The Making
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The Finished Product
http//padres.mlb.com/sd/components/sdballpark/sea
tviews/index.html
Home Run!
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Works Cited
Information from - Scarangello, Thomas Z., P.E.,
M.ASCE, Joseph, Leonard M., P.E., M.ASCE,
Kadakia, Anjana, P.E. Safe!.
Pictures from -http//www.pbase.com/jwalk/petcopa
rkpageall -http//suttonsolves.com/petco-park-
2-29-04.html