Glazing Assembly Design Review Engineering Analysis of Absolute TRFM Railing System

Transcription

1 Glazing Assembly Design Review Engineering Analysis of Absolute TRFM Railing System 1870 Dufferin Crescent Nanaimo, BC Prepared for: Prepared for: Rob Turgeon J.R.E. Hardware Inc Dufferin Crescent Nanaimo, BC V9S 0A9 Prepared by: Read Jones Christoffersen Ltd. 155 Skinner Street, Suite 301 Nanaimo BC V9R 5E8

2 Glazing Assembly Design Review Engineering Analysis of Absolute TRFM Railing System 1870 Dufferin Crescent Table of Contents 1.0 GENERAL INFORMATION Overview Codes SPECIFIED LOADS Live Load Wind Load COMPONENT INFORMATION Glass Infill Rail Elements Fascia Mount Components Connectors RESULTS LIMIT OF COMMISSION CONCLUSION 4 APPENDICES APPENDIX A: POST SPACING APPENDIX B: LIST OF COMPONENTS APPENDIX C: GLASS HOLE GUIDELINES

3 Glazing Assembly Design Review Engineering Analysis of Absolute TRFM Railing System 1870 Dufferin Crescent page GENERAL INFORMATION 1.1 Overview The J.R.E. Type 1 Railing Assembly is an engineered infill railing panel system, and is intended to act as a guard or barrier to protect the public from a fall as defined in the NBC. The objective was to complete a structural review of the structural components based on Limit States Design, in accordance with applicable material standards and Part 4 and Part 9 (excluding grandstands, stadia, etc.) of the National Building Code of Canada as named in the following section. When constructed in accordance with J.R.E. installation guidelines, and the attached components list, the guardrail will safely support the loading conditions noted in the following sections. The diagram below shows the assembly that was reviewed. A complete list of all components, including nonstructural components, for the system is included in Appendix C. 1.2 Codes The railing meets applicable requirements of the following codes: NBC 2010 BCBC 2012 Refer to Appendix A for system limitations.

4 Glazing Assembly Design Review Engineering Analysis of Absolute TRFM Railing System 1870 Dufferin Crescent page SPECIFIED LOADS 2.1 Live Load The following live loads were considered non-concurrently: Concentrated lateral load of 1 kn (applied to the Railing System at top of guard) Uniformly distributed lateral load of 0.75 kn/m (applied at top of guard) Uniformly distributed vertical load of 1.5 kn/m applied at top of guard Concentrated infill load of 0.5 kn (anywhere within the guard) Concentrated live load of 0.1kN applied in opposite directions on two individual infill elements within a guard shall result in an opening size no greater than 100mm 2.2 Wind Load Wind loads were calculated in accordance with National Building Code of Canada 2010 Volume 2 and British Columbia Building Code This section is applicable for free standing building guardrails, wind walls and balcony railings that return to building walls. Actual wind loads must be determined by a qualified individual for each specific installation. 3.0 COMPONENT INFORMATION 3.1 Glass Infill Type 1 Railing Assemblies have been analyzed using monolithic, tempered glass only Glass panels were analyzed with having pinned (simply-supported) ends at each post Allowable deflection was limited to preventing fall-out of the glass from the frame All glass edges assumed to be polished 3.2 Rail Elements General rail elements include the guardrail and posts. Fastener resistance was completed in accordance with CAN/CSA S16-14 Design of Steel Structures Posts were analyzed as cantilevers, fixed at the base. The results from our analysis show the maximum span that can be achieved, as calculated from the material and fastener resistances. Both the top grab rail and glass panel loads transfer to cantilever posts.

5 Glazing Assembly Design Review Engineering Analysis of Absolute TRFM Railing System 1870 Dufferin Crescent page Fascia Mount Components Fascia Plate thickness shall be verified for exterior applications according to wind loading applied. 3.4 Connectors The following connections were reviewed: Bolts Clips Welds To meet the following criteria: CAN/CSA S16-14 Design of Steel Structures Fittings for clamps shall allow the holes to meet manufacturing guidelines per ASTM C1048 (see Appendix C) Set screws shall penetrate a minimum of 2 threads past the insert post Although connections to the base structure and the effect on the substrate were not reviewed, by inspection, it is RJC s opinion that component 8077 Intermediate may require 4 bolts into substrate, depending on substrate, rather than the 2 currently present, in order to fully develop strength. Connection to be checked on a per-case basis. 4.0 RESULTS A set of calculations and results is presented in RJC #NAN Structural Engineering Basis Report, and it is available upon request. Included are calculations for structural capacity of components listed in 1.0 Overview. 5.0 LIMIT OF COMMISSION RJC prepared this report for the use of J.R.E. Hardware Inc. The material in it reflects RJC s judgement in light of information available to RJC at the time of preparation. Any use that a third party makes of this report, or any reliance or decisions to be based on it, is the responsibility of such third parties. RJC accepts no responsibility for damages, if any, suffered by any third party as a result of decisions made or actions based on this report. This report was prepared for J.R.E. Hardware Inc. It is not for the use or benefit of, nor may it be relied upon, by any other person or entity, without written permission of Read Jones Christoffersen Ltd.

6

7 Appendix A: Absolute TRFM Railing System Limitations

8 Glazing Assembly Design Review Engineering Analysis of Absolute TRFM Railing System Appendix A Absolute TRFM Railing System Limitations page 1 Exterior Assembly to be Confirmed by Engineer for Each Site Specific Case q=0.5 kpa (Nanaimo) Post Spacing Minimum Height Above Finished Terrain Storey 6mm Glass Floor Vertical Insert Post Thickness (Post Dim. 40mm x 40mm) (Post Insert Dim mm x 36.5mm) Fascia Plate Thickness Interior N/A 48" (1219mm) 900 mm 2.00mm 3/8 (9.5mm) Exterior (Open Terrain) Floor 3 36" (914mm) * 1070 mm * 3.50mm 1/2 (12mm) *Post spacing values are meant to serve as a guideline for exterior conditions in order for J.R.E. to be able to provide their customers with approximate post spacing. This can vary greatly depending upon actual site conditions, storey height, geographic location, etc. Each exterior application shall have actual wind load verified by an engineer and shall confirm with the component strengths provided in RJC s Calculation Package (available upon request) that the assembly is acceptable.

9 Appendix B: List of Components

10 Glazing Assembly Design Review Engineering Analysis of Absolute TRFM Railing System Appendix B List of Components page 1 PRODUCT ID# DESCRIPTION NOTES 40 X 40 X 1.25mm Standard Square Tube Post/Handrail 36.5 X 36.5 X 2.00mm Interior Vertical Post Insert 36.5 X 36.5 X 3.50mm Exterior Vertical Post Insert Top Guardrail Corner Guardrail End Cap Top Guardrail Connector 1. Cap on bottom of vertical post to have ¼ weld all around Standard Square Tube Post to ensure Post Insert does not slide out 1. Splice location to be no greater than 300mm from vertical post Post to Top Guardrail Intermediate Connector Post to Top Guardrail Corner Connector 058-A1 Glass Clamps 8077 OUTER Outer Corner Fascia Mount Bracket 8077 INNER Inner Corner Fascia Mount Bracket 8077 Intermediate Fascia Mount Bracket 1. Thickness shall be checked for exterior applications 1. Thickness shall be checked for exterior applications 1. Thickness shall be checked for exterior applications 2. May require 4 bolts to substrate rather than 2 depending on anchorage/substrate condition not checked in this report STANDARD SQUARE INTERIOR VERTICAL EXTERIOR VERTICAL TUBE POST/HANDRAIL POST INSERT POST INSERT (3 STORIES, NANAIMO)

11 Glazing Assembly Design Review Engineering Analysis of Absolute TRFM Railing System Appendix B List of Components page 2 *By inspection, 4 anchors into substrate may be required for 8077 Intermediate Fascia Mount Bracket depending on substrate/anchorage condition. Note: anchorage to substrate was not analyzed in this report

12 Appendix C: ASTM C : Glass Hole Guidelines

13 Glazing Assembly Design Review Engineering Analysis of Absolute TRFM Railing System Appendix C ASTM C : Glass Hole Guidelines page 1

14 Glazing Assembly Design Review Engineering Analysis of Absolute TRFM Railing System Appendix C ASTM C : Glass Hole Guidelines page 2