C HERCULES GLASS by ClearView GLASS RAILINGS 300 LB IMPACT TESTING C HERCULES GLASS by ClearView GLASS RAILINGS
CONSULTANTS · ENVIRONMENTAL · GEOTECHNICAL · MATERIALS · FORENSICS October 15, 2020 Mr. John Ruprecht Clear View Glass Railings 737 Quentin Avenue South Lakeland, MN 55043 Re: Field test of Clear View Glass Railings “Hercules Glass” guardrail panel AET Project #: 05-20608 Dear Mr. Ruprecht, This letter reports tests performed on Clear View’s Hercules Glass panel on April 21, 2020 by Clear View and your agents at 1141 120th Street in Roberts, Wisconsin.
C HERCULES GLASS by 300 LB IMPACT TEST ClearView GLASS RAILINGS This is an impact test of 60” x 39.37” x .53” thick CVGR Hercules tempered laminated glass panel mounted in two 316 solid core stainless steel spigots. Spigots are centered on glass 36” apart, 12” from end of glass. Plastic bags are weighted with 300 lbs of media, pulled back 36” from CVGR glass panel and then released to free fall to impact the top center of the CVGR panel.
CVGR HERCULES GLASS 300 LB IMPACT TEST VIDEO STILLS CLEARVIEW GLASS RAILINGS • 737 Quentin Avenue South • Lakeland, MN 55043 • ClearViewGlassRailings.
C HERCULES GLASS by ClearView GLASS RAILINGS LOAD TESTING C HERCULES GLASS by ClearView GLASS RAILINGS
CONSULTANTS · ENVIRONMENTAL · GEOTECHNICAL · MATERIALS · FORENSICS November 13, 2020 Mr. John Ruprecht Clear View Glass Railings 737 Quentin Avenue South Lakeland, MN 55043 Re: Code Requirements & Static Test of Clear View Glass Railings “Hercules Glass” guardrail panel AET Project #: 05-20608 Dear Mr. Ruprecht, This letter reports building code requirements for guardrails; it also reports test methods and results for static tests performed on Clear View’s Hercules Glass panel.
Mr. John Ruprecht – Clear View Glass Railings AET Project No. 05-20608 October 13, 2020 Page 2 of 4 using criteria specific to Clear View’s panels and support configuration. Hercules Glass Testing Testing was performed on the Hercules Glass panel by Clear View’s glass supplier, to simulate the forces created by 800# horizontal and vertical point loads on the panel (loads are not required to be simultaneous). The vertical load test is fairly straightforward and is shown in photo 1.
Mr. John Ruprecht – Clear View Glass Railings AET Project No.
Mr. John Ruprecht – Clear View Glass Railings AET Project No. 05-20608 October 13, 2020 Page 4 of 4 Due to the laminate construction of the panels (similar to a vehicle windshield), the panel broke into small pieces that were retained within the panel, preventing dangerous flying glass debris. See photo 3. Photo 3: Panel after failure, showing all glass intact within laminate structure.
C HERCULES GLASS by ClearView GLASS RAILINGS CALIFORNIA PROFESSIONAL ENGINEERSCTESTING APPROVAL HERCULES GLASS by ClearView GLASS RAILINGS
C HERCULES GLASS by ClearView GLASS RAILINGS FLORIDA HURRICANE CTESTING HERCULES GLASS by ClearView GLASS RAILINGS
CONSULTANTS · ENVIRONMENTAL · GEOTECHNICAL · MATERIALS · FORENSICS November 17, 2020 Mr. John Ruprecht Clear View Glass Railings 737 Quentin Avenue South Lakeland, MN 55043 Re: Florida Wind Load Requirements for Wind-Borne Debris Regions, and Considerations for “Hercules” Glass Guardrail Panel AET Project #: 05-20608 Dear Mr. Ruprecht, This letter reports the findings of our review of the Florida Building Code (FBC) wind requirements for Wind-Borne Regions, as defined by the FBC.
Mr. John Ruprecht – Clear View Glass Railings AET Project No. 05-20608 November 17, 2020 Page 2 of 3 The glass used in the panels has a published capacity of 10,000 psi tensile strength. Using the FEM, the pressure was increased until the capacity was reached, which was 100 psf. Plugging this into the ASCE 7-10 equations yields a service wind speed of 155 mph, or 250 mph factored wind speed. This is higher than the FBC’s 180 mph factored wind speed requirement.
Mr. John Ruprecht – Clear View Glass Railings AET Project No. 05-20608 November 17, 2020 Page 3 of 3 Daniel J. Larson, PE Principal Engineer Florida License #70286 Phone: 651-659-1337 dlarson@amengtest.com Attachment: FBC Section 1609.
C HERCULES GLASS by ClearView GLASS RAILINGS STRUCTURAL ASSESSMENT FOR C NORTH CAROLINA CODE OFFICIALS HERCULES GLASS by ClearView GLASS RAILINGS
CLEARVIEW GLASS RAILINGS – STRUCTURAL ASSESSMENT FOR NORTH CAROLINA CODE OFFICIALS CONSULTANTS • ENVIRONMENTAL • GEOTECHNICAL • MATERIALS • FORENSICS AET Project No. 05-20608 STRUCTURAL TESTING, FINITE ELEMENT ANALYSIS AND CODE EVALUATION MARCH 3, 2021 PREPARED FOR: MR. JOHN RUPRECHT CLEAR VIEW GLASS RAILINGS 737 QUENTIN AVENUE SOUTH LAKELAND, MN 55043 St.
CONSULTANTS · ENVIRONMENTAL · GEOTECHNICAL · MATERIALS · FORENSICS March 2, 2021 Mr. John Ruprecht Clear View Glass Railings 737 Quentin Avenue South Lakeland, MN 55043 Re: Wind Load Requirements for Wind-Borne Debris Regions, and Considerations for “Hercules” Glass Guardrail Panel AET Project #: 05-20608 Dear Mr. Ruprecht, This letter reports the findings of our review of the North Carolina wind requirements for Wind-Borne Debris Regions, as described by North Carolina Building Code Section 1609.
Mr. John Ruprecht – Clear View Glass Railings AET Project No. 05-20608 March 2, 2021 Page 2 of 3 high strength cement is required between the glass and the spigot, to increase the friction coefficient and the spigot “gripping” strength of the panel. The code-mandated wind and live load forces create an overturning force through the panels and spigots that is resisted by the supporting structure. Using the diagram provided by ClearView Glass Railings, showing 3.
Mr. John Ruprecht – Clear View Glass Railings AET Project No. 05-20608 March 2, 2021 Page 3 of 3 borne debris would not penetrate the enclosure and its structural elements. Therefore, this test is not required for the panels used as a guardrail system. Summary Based on our understanding of the NCBC requirements, our conclusions follow: 1. Each panel is constructed of fully tempered, laminated glass. 2. Each panel is secured to the structure with three supports. 3.
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001212323 Attachment 1 11 6 1 ! 1" # $1% 1 &1% & 230'1 %1043567 043567ÿ9 ÿ ÿ ÿ 217
001212323 043567ÿ9 ÿ ÿ ÿ Attachment 1 11 6 1 ! 1" # $1% 1 &1% & 230'1 %1043567 717
Attachment 2: Wind Loading Calculation IBC Wind Load Calculations Project: CVG Railings - North Carolina High Wind Region Project #: 05-20608 11/5/2020 Code: North Carolina Building Code Source Document: ASCE 7-10, Chapter 29 Other Structures (Section 6.5.13) Coefficient Risk Category V (mph): Exposure: direction factor, Kd: topography fact , Kzt gust factor, G Larger dimension of sign, M (ft) Smaller dimension of sign, N (ft) Net force coefficients, Cf Average height above ground, (ft) velocity pres.
Attachment 3: Finite Element Modelling A finite-element-model (FEM) was created to model the Hercules Glass Panel. The model measures 60” x 39” x 13mm (0.51”) thick, and includes 960 elements sized approximately 1.5” square x 13mm (0.51”) thick. The model is supported at three points, at the panel “spigots. The spigots are approximately 4” tall x 3” wide. See Figure 1 below. Figure 1: Panel Configuration The highest stresses caused by a lateral wind load are experienced at the elements around the spigots.
Attachment 3: Finite Element Modelling Figure 2: Element numbering – full panel and close-up of elements surrounding three spigots Two load cases were run to estimate the stresses surrounding the spigot: 1. An 81 psf wind load that is equivalent to a 139 mph unfactored load (180 psf factored load). Figure 3; 2. The loading-to-failure test: 820# loaded at 42” above the spigots (see attachment 4 for an explanation of this). Figure 4.
Attachment 3: Finite Element Modelling Figure 3: Stresses due to 81 psf (180 mph factored winds)
Attachment 3: Finite Element Modelling Figure 4: Stresses due to failure load (820 psf @ 28”)
Attachment 4: Physical Testing July 13, 2020 Building Code Requirements The International Building Code (IBC) and International Residential Code (IRC) are “model codes” created by the International Code Council, intended to be used by states and municipalities as they publish their own building codes. Section 1607.8 of the IBC requires that “handrails and guards shall be designed to resist a linear load of 50 plf.
Attachment 4: Physical Testing dangerous flying glass debris. See photo 3. This test shows that the panel meets the intent to create a strong and safe barrier that can withstand reasonable loading (factor of safety of 2.5), and does not explode with dangerous glass shards during excessive loading. Photo 1: Panel loaded vertically with 2,520 pounds.
Attachment 4: Physical Testing Diagram 1: Test rig lying on its side, looking from above, showing panel supported at 28” and at bottom of panel Photo 3: Panel after failure, showing all glass intact within laminate structure.
C HERCULES GLASS by ClearView GLASS RAILINGS FLORIDA AND MIAMI DADE COUNTY C NOA DATA HERCULES GLASS by ClearView GLASS RAILINGS
C G ClearView GLASS RAILINGS C HERCULES GLASS by ClearView GLASS RAILINGS January 28, 2021 Mr. Chris Frederick Product Control Section Department of Regulatory and Economic Resources Miami-Dade County 11805 S. W. 26 Street, Room 208 Miami, Florida, 33175-2474 Re: ClearView Glass Railings – Request for Notice of Acceptance (NOA) for Hercules Glass Panels Dear Mr. Frederick, This letter is written to request a Notice of Acceptance (NOA) for our Hercules Glass Panels product.
CONSULTANTS · ENVIRONMENTAL · GEOTECHNICAL · MATERIALS · FORENSICS Attachment 4 February 1, 2021 Mr. Chris Frederick Product Control Section Department of Regulatory and Economic Resources Miami-Dade County 11805 Southwest 26th St. Miami, FL 33175 Re: ClearView Glass Railings – Florida Code Review AET Project #: 05-20608 Dear Mr.
CONSULTANTS · ENVIRONMENTAL · GEOTECHNICAL · MATERIALS · FORENSICS Attachment 5 February 1, 2021 Department of Regulatory and Economic Resources – Product Control Section Miami-Dade County Stephen P. Clark Center 111 NW 1st St.
Attachment 6 CLEARVIEW GLASS RAILINGS – STRUCTURAL ASSESSMENT FOR MIAMI-DADE COUNTY NOTICE OF ACCEPTANCE (NOA) CONSULTANTS • ENVIRONMENTAL • GEOTECHNICAL • MATERIALS • FORENSICS AET Project No. 05-20608 STRUCTURAL TESTING, FINITE ELEMENT ANALYSIS AND CODE EVALUATION JANUARY 28, 2021 PREPARED FOR: MR. JOHN RUPRECHT CLEAR VIEW GLASS RAILINGS 737 QUENTIN AVENUE SOUTH LAKELAND, MN 55043 St.
CONSULTANTS · ENVIRONMENTAL · GEOTECHNICAL · MATERIALS · FORENSICS Attachment 6 February 1, 2021 Mr. John Ruprecht Clear View Glass Railings 737 Quentin Avenue South Lakeville, MN 55043 Re: Florida Wind Load Requirements for Wind-Borne Debris Regions, and Considerations for “Hercules” Glass Guardrail Panel AET Project #: 05-20608 Dear Mr. Ruprecht, This letter reports the findings of our review of the Florida Building Code (FBC) wind requirements for Wind-Borne Regions, as defined by the FBC.
Mr. John Ruprecht – Clear View Glass Railings AET Project No. 05-20608 February 1, 2021 Page 2 of 3 Wind Loading vs. Panel Capacity The FBC follows the International Building Code (IBC) requirements for wind loads, with ultimate (factored) wind speeds up to 180 mph; Table 1609.3.1 converts this to 139 psf for unfactored loading, which was used in the analysis. See Attachment 1 for nominal ground wind speed reference maps from the Florida Building Code.
Mr. John Ruprecht – Clear View Glass Railings AET Project No. 05-20608 February 1, 2021 Page 3 of 3 Please call or e-mail us to discuss this analysis or any portion of the project to evaluate your panels. Sincerely, American Engineering Testing, Inc. Chris Hartnett, PE* Principal Engineer *MN, WI, AL, MD, MO, NC, ND, OH, PA, TN VA Phone: 651-647-2750 chartnett@amengtest.com Daniel J. Larson, PE Principal Engineer Florida License #70286 Phone: 651-659-1337 dlarson@amengtest.
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Attachment 2 IBC Wind Load Calculations Project: CVG Railings - Florida High Wind Region Project #: 05-20608 11/5/2020 Code: Florida Building Code Source Document: ASCE 7-10, Chapter 29 Other Structures (Section 6.5.13) Coefficient Risk Category V (mph): Exposure: direction factor, Kd: topography fact , Kzt gust factor, G Larger dimension of sign, M (ft) Smaller dimension of sign, N (ft) Net force coefficients, Cf Average height above ground, (ft) velocity pres.
Attachment 3: Finite Element Modelling A finite-element-model (FEM) was created to model the Hercules Glass Panel. The model measures 60” x 39” x 13mm (0.51”) thick, and includes 960 elements sized approximately 1.5” square x 13mm (0.51”) thick. The model is supported at three points, at the panel “spigots. The spigots are approximately 4” tall x 3” wide. See Figure 1 below. Figure 1: Panel Configuration The highest stresses caused by a lateral wind load are experienced at the elements around the spigots.
Attachment 3: Finite Element Modelling Figure 2: Element numbering – full panel and close-up of elements surrounding three spigots Two load cases were run to estimate the stresses surrounding the spigot: 1. An 81 psf wind load that is equivalent to a 139 mph unfactored load (180 psf factored load). Figure 3; 2. The loading-to-failure test: 820# loaded at 42” above the spigots (see attachment 4 for an explanation of this). Figure 4.
Attachment 3: Finite Element Modelling Figure 3: Stresses due to 81 psf (180 mph factored winds)
Attachment 3: Finite Element Modelling Figure 4: Stresses due to failure load (820 psf @ 28”)
Attachment 4: Physical Testing July 13, 2020 Building Code Requirements The International Building Code (IBC) and International Residential Code (IRC) are “model codes” created by the International Code Council, intended to be used by states and municipalities as they publish their own building codes. Section 1607.8 of the IBC requires that “handrails and guards shall be designed to resist a linear load of 50 plf.
Attachment 4: Physical Testing dangerous flying glass debris. See photo 3. This test shows that the panel meets the intent to create a strong and safe barrier that can withstand reasonable loading (factor of safety of 2.5), and does not explode with dangerous glass shards during excessive loading. Photo 1: Panel loaded vertically with 2,520 pounds.
Attachment 4: Physical Testing Diagram 1: Test rig lying on its side, looking from above, showing panel supported at 28” and at bottom of panel Photo 3: Panel after failure, showing all glass intact within laminate structure.
C G ClearView GLASS RAILINGS INSTALLATION WITH THREE SPIGOTS Part Number CVGR 316 SSOD48-180 Satin Finish Product Name Round Deck Mount Spigot Spigot Size 1.9” diameter x 7.1” tall Spigot Weight 5.5 lbs. Glass Thickness/ 13mm/ 60” width x 39.37” Dimensions/Weight height/98.5 lbs. (per panel) Accessories Included Base Cover, Rubber Gasket Wood Deck Installation The hold down force for each spigot is 2,500 lbs. We suggest using 3/8” diameter x 3.
Attachment 7 ClearView 4.330” Ø .413” Ø 1.869” 3.149” Ø 3.897” .984” .315” .708” Ø 4.015” Ø 4.110” .984” Ø 1.869” 6.771” 7.086” 1.968” 1.181” 4.330” 7.086” M .393”*.629” 1.968” 1.181” SPIGOT SPECS GLASS RAILINGS Ø 1.929” Ø 4.110” CLEARVIEW GLASS RAILINGS • 737 Quentin Avenue South • Lakeland, MN 55043 • ClearViewGlassRailings.
