the cortek core construction system
DESCRIPTION
The CorTek Core Construction System is revolutionizing the way stair and elevator cores are being built.TRANSCRIPT
Core Construction Core Construction SystemSystemPresented By:Presented By:
Aaron RutledgeAaron RutledgeCorTek, Inc.CorTek, Inc.999 Van Buren Ave.999 Van Buren Ave.Loveland, CO 80537Loveland, CO 80537Phone: 970-663-2222Phone: 970-663-2222Fax: 970-663-9969Fax: 970-663-9969
[email protected]@corteksystems.comwww.corteksystems.comwww.corteksystems.com
Product OverviewProduct Overview
► Stay-in-place modular form Stay-in-place modular form system for concrete core system for concrete core structuresstructures
► Factory built modules stack Factory built modules stack like building blocks.like building blocks.
► Custom-built to the specific Custom-built to the specific requirements of each requirements of each project.project.
Features:Features:► Unequalled speed of Unequalled speed of
constructionconstruction
►High tolerance, all-High tolerance, all-steel construction.steel construction.
►Minimal field work.Minimal field work.
►Modules are load-Modules are load-bearing before bearing before concrete.concrete.
► Cost Competitive.Cost Competitive.
Difficult/slow/error-prone Difficult/slow/error-prone field work brought into a field work brought into a controlled factory controlled factory environment set up for environment set up for efficiency and quality.efficiency and quality.
Computer aided Computer aided parametric design used parametric design used for rapid parametric for rapid parametric structural and structural and architectural design.architectural design.
Decreased site Decreased site congestion increases congestion increases project flow.project flow.
Freeing site schedule Freeing site schedule from concrete core from concrete core schedule increases schedule increases “battle plan” options.“battle plan” options.
An Advanced An Advanced Building SystemBuilding System
Benefits:Benefits:► Immediate presence of stairs allows trades early Immediate presence of stairs allows trades early
and safe access to structureand safe access to structure
► Elimination of many dangerous field operationsElimination of many dangerous field operations
► Can eliminate the need for scaffoldingCan eliminate the need for scaffolding
► Reduction of poor fit-up and coordination problems Reduction of poor fit-up and coordination problems among tradesamong trades
► Cores generally part of the critical path—the CorTek Cores generally part of the critical path—the CorTek system cannot be beat for speed--reducing overall system cannot be beat for speed--reducing overall schedule by weeks or months on most projects.schedule by weeks or months on most projects.
Target ProjectsTarget Projects
MULTI-STORY BUILDINGS OF ALL TYPES . . . . . .MULTI-STORY BUILDINGS OF ALL TYPES . . . . . . • Structural steel framed buildings. Structural steel framed buildings. • Wood framed buildings.Wood framed buildings.• Concrete framed buildings.Concrete framed buildings.• Industrial Structures.Industrial Structures.• Current production equipment tooled Current production equipment tooled
for 8” - 12” thick walls to target 3-12 for 8” - 12” thick walls to target 3-12 story buildings.story buildings.
CompetitionCompetitionPrice for a typical stair core story Price for a typical stair core story
with 2 flights of stairs, 6 with 2 flights of stairs, 6 embeds and ledger angle at embeds and ledger angle at floor perimeter. Price includes floor perimeter. Price includes placed concrete and all placed concrete and all installation costsinstallation costs
► Conventional MethodsConventional Methods Cast-In-Place: $33,192/Story*Cast-In-Place: $33,192/Story* Pre-Cast: $44,529/Story*Pre-Cast: $44,529/Story* Masonry: $30,754*Masonry: $30,754*
► CorTek: $33,514 @ CorTek: $33,514 @ $14,380/Mod$14,380/Mod
*Based on independent estimate provided by Will Hopkins *Based on independent estimate provided by Will Hopkins of the Icon Groupof the Icon Group
Optional wall thicknessOptional wall thicknessEffective thickness:
8”
10”
12”
Actual thickness:
10”
12”
14”Because of the much higher tolerances of the CorTek System, the resulting finished wall assembly can be thinner than conventional methods for many applications.
Pre-installed stairsPre-installed stairs
Railings shipped ready to Railings shipped ready to bolt onbolt on
Optional Stair & Railing Optional Stair & Railing DesignsDesigns
Pan treads
Checkered plate treads
Grating treads
Parallel tube rails
Picket rails
Wire mesh rails
Parallel Tube RailingParallel Tube Railing
Mesh RailingMesh Railing
Picket RailingPicket Railing
Elevator CoreElevator Core
Safety—A Job Site’s Most Safety—A Job Site’s Most Important ConsiderationImportant Consideration
Moving formwork to a controlled factory environment eliminates many dangerous field operations
Where’s the rest of the Where’s the rest of the structure?structure?
Framing does not wait for formwork—saving weeks to months on project schedule
Concurrent FramingConcurrent Framing
CompetitionCompetitionPrice for a typical stair core story Price for a typical stair core story
with 2 flights of stairs, 8 with 2 flights of stairs, 8 embeds and ledger angle at embeds and ledger angle at floor perimeter. Price includes floor perimeter. Price includes placed concrete and all placed concrete and all installation costsinstallation costs
► Conventional MethodsConventional Methods Cast-In-Place: $38,574/Story*Cast-In-Place: $38,574/Story* Pre-Cast: $49,219/Story*Pre-Cast: $49,219/Story* Masonry: $34,346/Story*Masonry: $34,346/Story*
► CorTek: $36,786CorTek: $36,786**Based on independent estimate provided by the Icon Based on independent estimate provided by the Icon
Group September 2008Group September 2008
A Load Bearing FormA Load Bearing Form
► Vertical and horizontal Vertical and horizontal structural elements support structural elements support construction loads and allow construction loads and allow form to be modularized. form to be modularized.
► Structural skeleton allows for Structural skeleton allows for support of stairs, landings, support of stairs, landings, structural framing, scaffolding, structural framing, scaffolding, personnel, and other personnel, and other construction loadsconstruction loads
► Form does not require Form does not require strippingstripping
► Finished wall structurally Finished wall structurally equal to a conventional 8”-12” equal to a conventional 8”-12” CIP concrete wallCIP concrete wall
DesignDesign
► Direct Replacement for Conventional Cast-In-PlaceDirect Replacement for Conventional Cast-In-Place—no extra work required for Architect or Structural —no extra work required for Architect or Structural Engineer.Engineer.
► Conventional concrete rebar configurations.Conventional concrete rebar configurations.
► No proprietary design methods or material No proprietary design methods or material strengths.strengths.
► No requirement for special code approvals.No requirement for special code approvals.
Complete Detailed Complete Detailed Shop DrawingsShop Drawings
► Stair and Railing LayoutsStair and Railing Layouts
► Rebar detailsRebar details
► Framing and Floor ConnectionsFraming and Floor Connections
► 3D Revit model available for each project.3D Revit model available for each project.
QualityQuality► Parametric modeling essentially eliminates Parametric modeling essentially eliminates
detailing mistakes.detailing mistakes.
► Controlled manufacturing environment.Controlled manufacturing environment.
►Multiple failsafing operations.Multiple failsafing operations.
► Rigid Quality Assurance ProgramRigid Quality Assurance Program
► Jigs, Fixtures and Design provide Jigs, Fixtures and Design provide extraordinarily tight tolerancesextraordinarily tight tolerances
Job Site EfficiencyJob Site Efficiency>Enabling Lean Construction>Enabling Lean Construction
► Drastic reduction of field labor. Drastic reduction of field labor.
► Just In Time Delivery minimizes site congestion.Just In Time Delivery minimizes site congestion.
► Core construction can be concurrent with frame Core construction can be concurrent with frame construction.construction.
► Re-work from misplaced embeds, doors, bulging Re-work from misplaced embeds, doors, bulging concrete and leaning or twisted towers eliminatedconcrete and leaning or twisted towers eliminated
► Several cores can be constructed simultaneouslySeveral cores can be constructed simultaneously
Installation Sequence and Installation Sequence and DetailsDetails
Foundation EmbedsFoundation Embeds
Base ModuleBase Module
Core Leveling DetailCore Leveling Detail
Install Vertical ReinforcementInstall Vertical Reinforcement
Vertical Reinforcement In Vertical Reinforcement In PlacePlace
Base Connection WeldBase Connection Weld
Going VerticalGoing Vertical
Module Alignment DetailModule Alignment Detail
Non-contact Vertical Rebar Non-contact Vertical Rebar SplicesSplices
Vertical steel attached to Vertical steel attached to each moduleeach module
Vertical Bar Alignment Vertical Bar Alignment GuidesGuides
Beam Attachments and Ledger Beam Attachments and Ledger Angle Pre-installedAngle Pre-installed
Contractor drops in steel Contractor drops in steel beam and bolts it together.beam and bolts it together.
Interior and Exterior finishesInterior and Exterior finishes
►ExteriorExterior
► Exposed MetalExposed Metal►DrywallDrywall►MasonryMasonry► StuccoStucco► Thin set brick Thin set brick
►Interior Interior
► Exposed MetalExposed Metal►DrywallDrywall►Hardboard PanelHardboard Panel► Tile Tile
Optional pre-installed hat channel Optional pre-installed hat channel accommodates exceptionally thin accommodates exceptionally thin
finish facefinish face
Hat-channel can be field shot directly Hat-channel can be field shot directly on to walls and finished conventionallyon to walls and finished conventionally
Optional pre-installed masonry tie Optional pre-installed masonry tie backs accelerate masonry field workbacks accelerate masonry field work
Exposed metal interior is an Exposed metal interior is an aesthetic alternate to aesthetic alternate to
concreteconcrete
Green BenefitsGreen Benefits
►No wood forms and No wood forms and resulting site wasteresulting site waste
►No form oilNo form oil
►Greatly minimizes Greatly minimizes site labor site labor installationinstallation
► Recycled and Recycled and recyclable steel recyclable steel used in used in construction.construction.
► Perfect delivery Perfect delivery method for high method for high volume fly ash volume fly ash concreteconcrete
ConclusionConclusion
► Eliminates the need for Eliminates the need for scaffolding and forms scaffolding and forms
► Reduces Critical Path Reduces Critical Path construction time construction time associated with associated with building coresbuilding cores
► Pre-installed stairsPre-installed stairs► Pre-installed floor and Pre-installed floor and
beam connectionsbeam connections►Modules do not require Modules do not require
stripping.stripping.
► CorTek cores are CorTek cores are individually designed individually designed for each job in a for each job in a controlled controlled environmentenvironment
► Simultaneous Simultaneous construction with floor construction with floor framingframing
► Structurally equivalent Structurally equivalent to 8”-12” CIP concrete to 8”-12” CIP concrete shear wall.shear wall.
► Cost effective Cost effective
Questions & CommentsQuestions & Comments
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