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Urban Modular ConstructionBuilding the Davenport Grand Hotel
Presented By:Blake Johnson, P.E.
Sales Engineer
Rob Holland, P.E.Engineering Manager
Introduction:
• Oldcastle Precast – Spokane
• In operation for 50+ years in the Inland NW
• Products:
– Building systems
– Bridge systems
– Utility vaults
• Oldcastle:
– North America’s largest manufacturer of building products and materials.
Oldcastle Precast Spokane:• 60+ Employees
• In-house engineering and drafting teams
• Supports architects, engineers & owners
• On-site batch plant to produce
• 20 casting beds available
• 12 acres of laydown-storage
• On-site quality control
Oldcastle Precast Spokane:
The Grand Hotel:
• Latest project in Davenport collection
– 716 Rooms
– 900 Car parking garage
– 62,500 sq. ft of meeting and exhibit space
– 4,500+ pieces of precast concrete
– 1.5 Million tons of concrete used
– Completed in 2 years
History With Owner
• Ecova building
• Rock Pointe
• RiverView
– 5 Week install
• Davenport Series:
– Hall of Doges
– Tower
– Grand
Owner’s Goals• Large open area spaces
• High efficiency:
– Sound reduction between rooms
– Thermal envelope
• Reduced project schedule
• Reduced overall project cost
Accelerated Building Construction• Trusted partner with local support
• Repeatable prefabricated components
• Schedule driven project
• Weather/Temperature controlled environment
• Quality control
• Just in time shipping
Who Else Uses This Approach?
• Bridge builders
• Ship builders
• Airplane manufacturers
Project Approach:• Cast in place:
– Footings
– Shear walls
– Topping slabs
• Modular precast construction:
– Custom column and girder design for base floors
– Elevator and stair towers
– Hollow core decking
– Solid panel demising walls
– Insulated CarbonCast® wall panels
Cast in Place Footings• Transfer structural loads to the earth
• Anchored to rock for increased capacity
Cast in Place Shear Walls
• Transfer building lateral loads to footings
• Size dictates cast in place vs. precast
Precast Columns
• Structural columns to transfer loads from main floor to footings
• All columns cast and installed as single piece multistory members
• No splices required between pieces
Precast Floor Beams and Hollowcore Decking
• Prestressed flooring
• Large open spans
• Reduced weight/ft2
vs solid slabs
Precast Wall & Spandrel
• Rebar reinforced
• Prestressed wall panel
Precast Double-T Beams
• High capacity design – support HVAC and backup generator
• Allowed for open areas in ballroom (>100ft clear span) and kitchen (>60ft clear span)
Precast 3rd Floor Transfer Beams
• Transfer building vertical loads from hotel floors above to columns allowing large open areas in lower 2 floors.
• Utilized standard forms normally used for highway bridges.
3rd Floor Hollowcore and Topping
• Precast & prestressed deck
• Cast in place topping provides “composite” strength.
• Served as diaphragm to transfer lateral loads to shear walls for building stability.
3rd Floor Hollowcore and Topping
Precast Insulated Stair Tower Panels• Fire resistant, thermally
efficient stair well.
• Also used to provide lateral resistance for the structure.
Insulated Stair Wall Panels
• High thermal efficiency
• Carbon cast provides high strength composite design
Precast Demising Walls• Provided high level of sound dampening
between rooms and structural support of room levels
• Accommodated HVAC ductwork
• Doweled together for floor to floor continuity
Precast Demising Walls
Precast Exterior Wall Panels
• Pre-glazed
• Pre-painted
Precast Exterior Wall Panels
Precast Floor Slabs• (3) panels required to cover (2) rooms +
hallway
• Sized to reduce vibrations from walking (tested in the plant)
• Included shower pans and plumbing holes
• Welded to demising walls to provide instant diaphragm reducing bracing and increasing installation safety
Precast Floor Slabs
What to Watch For:
• Standardize panels to maximum extent
• Ensure detailed engineering is complete prior to production
• Solid communication between erector and production
• Plan for MEP upfront to allow for plant installed block outs and sleeves
Questions?
Let us know how we may support you.
Blake Johnson, P.E
(509) 536-3319
Rob Holland, P.E.
(509) 536-3349
Oldcastle Precast
922 N. Carnahan Rd.
Spokane Valley, WA 99212
