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Better Partners. Better Products. Better Outcomes.
STANDARD DETAILS
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CorTek™ is a stay-in-place modular form system, engineered to simplify and accelerate the construction of reinforced concrete stair and elevator core structures.
Features:• Factory-built, high tolerance, all-steel construction• Rapid, simplified erection procedure• Reinforcement steel is pre-installed at the factory• Stairs are pre-installed at the factory, providing early trade access to the building floors• The form system can support limited construction loads prior to placement of concrete• Connections for floor and roof framing are pre-installed• Compatible with steel, concrete and wood framing• Structurally equivalent to 8” - 12” CIP concrete wall• CorTek modules go up with floor framing• CorTek modules do not require stripping• Corrugated steel surface can be left exposed, painted, or covered with almost any architectural surface material
Free up site schedule and resources by modularizing core off site in a specialized factory set up for quality and efficiency:
• Stay-in-place modular form system for concrete core structures• Factory built modules stack like building blocks• Custom-built to the specific requirements of each project
Faster, Safer, Higher Quality and Cost Competitive:• Framing does not wait for cores• Immediate presence of stairs allows trades early and safe access to structure• Elimination of many dangerous field operations• Reduction of poor fit-up and coordination programs among trades• Cost comparable to conventional cast concrete
Please contact the CorTek Team for more information at [email protected].
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CorTek™ Stay-in-Place Access Core Forming System
Design Team Quick ReferenceThe following is a quick list of items that need to be decided by the design team and given to CorTek sub-contractor to begin shop drawings.
The Architect and Structural Engineer are responsible for producing drawings and specifications which define the requirements for the core walls and stairs in the final constructed form.
The Structural drawings should include:•Elevation views of all core walls, dimensioned for all geometry and annotated with reinforcement requirements (vertical and horizontal sizing and spacing). Vertical bars will be spaced at 8” or 16” increments. Horizontal bars should be spaced similarly or at some interval of 4”.
•Nominal thickness of the core walls. This is the design thickness required by the EOR for the shear wall design. Typical thicknesses would be 8”, 10”, and 12” nominally. The overall thicknesses of these walls would be 10”, 12”, and 14” respectively.
•Core elevations will also define opening sizes and locations off of grid.
•Define the top of foundation walls supporting the core walls. Typically a minimum of 6” below the top of floor level slab so that the connection between the core wall and foundation wall is hidden below the top of slab.
•Define the preferred connection between the core walls and the foundation walls. Typically there are embed plates or rebar form-savers in the top of the foundation.
•Define details of all connections as they relate to the core walls. This includes the gravity and lateral load path. Final embed design will be performed by the CorTek™ consultant (provided by Vulcraft).
•Define any construction loads to be supported by the CorTek™ form modules.
•Provide factored reactions of beams framing into concrete core.
The Architectural drawings should include:•Any geometry of the stair cores not defined by the structural drawings
•Stair layouts, including rise, run and plan dimensions. See the “CorTek™ Reference Details” document for guidance on how to layout clear dimensions.
•Stair construction requirements, including railing type
•Performance specification for the stair design
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Table of ContentsDynamic Plan Block............................................Wall Reinforcement Zones...................................Rebar Details........................................................Rebar Section HH................................................Rebar Sections....................................................Rebar Schedule Example......................................Rebar Type BA.....................................................Rebar Type BB.....................................................Rebar Type BC.....................................................Rebar Type CJ.....................................................Plain Bars.............................................................Rebar Type VH....................................................Rebar Type WB...................................................Weldable Plain Bars............................................Rebar Type WP...................................................Foundation Connection.......................................Foundation Connection Section AA....................Wall Termination...................................................Corner Connection Section CC...........................Corner Connection Section CC Alt.....................Lattice Column Section DD................................Vertical Reinforcing Section EE...........................Header Details.....................................................Header Detail Sections........................................Header Rebar Mat Details..................................Standard Joist Connection.................................Slab Connection with HAS..................................Slab Connection with Rebar Coupler..................Standard Beam Connection................................Stair Clearance....................................................
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CAD blocks are available for all details click on the .dwg file name on each page to download the corresponding block.
DATE: 10/17/2017 DYNAMIC PLAN BLOCK
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CORTEK DYNAMIC BLOCK.DWG
LENGTH
WIDTH
8”,10”, OR 12” WALL 3 OR 4 WALL CONFIGURATION
This block is designed to be used to represent CorTek cores in plan drawings. The rebar and deck flute locations are for representation only. The block can be adjusted for different wall thickness and number of walls via drop down menus. The size can be adjusted with the length and width grips.
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DATE: 10/17/2017
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WALL REINFORCEMENT ZONES.DWG
WALL REINFORCEMENT ZONES
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DATE: 10/17/2017
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REBAR DETAILS.DWG
REBAR DETAILS
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DATE: 10/17/2017
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REBAR SCHEDULE EXAMPLE
REBAR SCHEDULE.DWG
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DATE: 10/17/2017 WALL TERMINATION
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WALL TERMINATION.DWG
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DATE: 10/17/2017 SECTION C-C
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SECTION CC.DWG
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DATE: 10/17/2017 SECTION C-C ALT
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SECTION CC ALT.DWG
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DATE: 10/17/2017 SECTION D-D
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SECTION DD.DWG
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DATE: 10/17/2017 SECTION E-E
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SECTION EE.DWG
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DATE: 10/17/2017
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STANDARD JOIST CONNECTION.DWG
STANDARD JOIST CONNECTION
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DATE: 10/17/2017
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SLAB CONNECTION WITH HAS
SLAB CONNECTION HAS.DWG
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DATE: 10/17/2017 SLAB CONNECTION WITH REBAR COUPLER
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SLAB CONNECTION COUPLER.DWG
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DATE: 10/17/2017 STANDARD BEAM CONNECTION
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STANDARD BEAM CONNECTION.DWG
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