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Engineering OverviewPresenter’s Name
00. 00. 2014
Introduction× Engineering Background
× Services Provided
× Racking Design
× Two Horizontal Rack (2HR)
× Portrait Utility
× Module Fastening Methods
× Tilt Brackets
× Ballast Foundations
Engineering Team Consists of…× Three Licensed Professional
Engineers (2) Structural Discipline(1) Mechanical Discipline
× Civil Engineers× Mechanical Engineers× Process Engineers× Research and Development
Engineers× Onsite Field Technicians× Professional Geologist
Engineering Staff
Engineering Services
“Value Engineer” racking structure for specific site conditions× Work directly with customer throughout quoting process and
project× Understanding customer’s wants and needs× Full rack design at the quoting stage× Provide an economical solution while maintaining structural
stability
Design Foundations × On site pull tests – Provided by SFR× Geotech Report – Provided by customer
Racking Design
× Racks are designed using local environmental loads (wind, snow, and seismic) per the International Building Code (IBC) and/or local building codes
× Finite Element Modeling (FEM)
× Designs are based on 3rd party testing such as Wind tunnel, Structural connections testing, and ground bond testing
× Multiple full scale load tests have been conducted to confirm theoretical calculations
× Design Considerations- Structural Integrity, Preassembly, and Installation Simplicity
Racking Design
Risa 3D × Ability to model entire rack× Apply various loading conditions× Analyze multiple load combinations× Perform code checks × Analyze deflections× Generate Structural reports
Racking Design
Racking Design
CFS - RSG Software
× Specializes in cold form steel design
× Ability to perform code checks on various cold form shapes
× Analyze complex cold-form shapes
Racking DesignStructural Connection Testing
× Per Chapter F - Cold Form Design Manual
2HR Landscape Rack
2HR Feature and Benefits× Maintains SFR’s trademark pre-assembled rack design.
× Integrated direct bolt and smart clip bonding solution. (ETL/UL approved)
× Can accommodate any project loads and tilt angle
× Adaptable to any pile solution; SFR Smart Post, Wide Flange, and Round Post
× Lift beam installation reduces field rigging and installation time
× The introduction of the Horizontal Rail Bracket creates safe and easy installation practices
Cold Form C-Shapes Horizontal Rails
C-shape maximizes shipping density, reducing shipping cost
Vary in size depending on project loads; × 6” to 10” deep members, 16 gauge – 14
gauge - Optimizes steel use and cost
Top C-Shape allows for wire management along the length of the rack
× Pre punched access holes allow for zip ties to restrain cables
Rib Stiffeners result in lighter gage material and more cost effective design
2HR Rack Components
Cold Form C-Shapes Vertical Rails
C-shape maximizes shipping density, reducing shipping cost
Vary in size depending on project loads; 2.5” to 4” deep members - Optimizes steel use and cost
Clip or Direct Bolt Panel Mounting× Clips use proprietary thread extruding screw for
bonding while minimizing corrosion exposure × Access holes in bottom flange allow direct bolt
panel mounting
Pre-punch lift holes for use with lift beam for installation
2HR Rack Components
Diagonal Bracing
× Diagonal bracing minimizes lateral deflection & squares rack
× Minimizes “sagging” and maintains even panel spacing
× Takes lateral forces from torsion braces back to tilt bracket
× Braces Weak Axis of Horizontals
Torsion Braces
× Works in conjunction with diagonal bracing and vertical rails to effectively brace the horizontal from torsion.
2HR Rack Components
The use of bracing ultimately results in a lighter, stiffer, and more cost efficient rack
Benefits Of Bracing
Competitor’s Rack-No Bracing
Solar Flexrack
2HR Rack Components Horizontal Rail Brackets
× Enables the horizontal rail to connect to the top chord of the tilt at the same elevation; eliminating “roll-over” and preventing twist of the horizontal rail
× Seat allows the rack to be set in place on tilt brackets without the need to install bolts while rack is suspended
× Allows the rack to be easily adjusted in E-W direction
Portrait Utility Rack
Portrait Utility Feature and Benefits× Maintains SFR’s trademark pre-assembled rack design
× Reduces loose rack components during installation
× Integrated direct bolt bonding solution. (ETL/UL approved)
× Can accommodate any project loads and tilt angle
× Adaptable to any pile solution; SFR Smart Post, Wide Flange, and Round Post
× Integrated wire management
× The use of bracing allows for lighter, stiffer, and more cost effective racks
Cold Form Z-Shapes Horizontal Rails
Allows for racks to be nested tightly together to maximize shipping density, reducing shipping cost
Vary in size depending on project loads; × 5” deep members, 14 gauge – 12 gauge
o Optimizes steel use and cost
Wire management along the length of the rack
Z-shapes can be spliced together for longer cost effective racks
Portrait UT Components
Portrait UT Components Horizontal Bracing
× Minimizes lateral deflection & squares rack
× Minimizes “sagging” and maintains even panel spacing
× Braces weak axis of horizontals
Connecting Channel
× Connects horizontals purlins together
× Pre-assembled
× Works in conjunction with horizontal bracing to effectively brace the horizontal rail
Kicker Brace
× Effectively braces compression flange of tilt bracket
Smart Bonding Clips× 2HR Rack
Direct Bolt× Portrait UT Rack× 2HR Rack
Module Fastening Methods
Tilt Brackets
“Two Member” Tilt Bracket
Reduces number of components
Top Chord size varies × Optimizes steel use and cost
Adaptable to SFR Smart Post, Wide Flange and Round Posts
Allows tilt bracket to be pre-assembled × Eases tilt bracket installation
Tilt BracketsTilt Bracket Assembly
× Allows plate to be attached & leveled to post easily
× Followed by tilt bracket assembly. (Pre-assembly is available)
Ballast Foundations× Eliminates post weldments
× Anchor bolt & leveling nuts allow for ballast to be installed on sloping terrain
× Reduces block height requirements
× Adaptable for any ground clearance
× Reduces installation time
ON BEHALF OF EVERYONE AT SOLAR FLEXRACK
THANK YOU VERY MUCH
Have additional questions? Drop us a line at: 888.380.8138
or visit: solarflexrack.com