Transcript Tilt Bracket - Solar FlexRack
Engineering Overview
Presenter’s Name 00. 00. 2014
× Engineering Background × Services Provided × Racking Design × Two Horizontal Rack (2HR) × Portrait Utility × Module Fastening Methods × Tilt Brackets × Ballast Foundations
Introduction
Engineering Staff
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 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 Design
Structural 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
2HR Rack Components
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.
The use of bracing ultimately results in a lighter, stiffer, and more cost efficient rack
Solar Flexrack
Benefits Of Bracing
Competitor’s Rack -No Bracing
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
Portrait UT Components
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
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
Module Fastening Methods
Smart Bonding Clips
× 2HR Rack
Direct Bolt
× Portrait UT Rack × 2HR Rack
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 Brackets
Tilt 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