Laboratory Testing of Architectural Exterior Wall Fins
Ice and snow accumulation sliding from the exterior wall fins installed on the New Meadowlands Stadium in New Jersey, future home field for the New York Jets and New York Giants football teams, was recognized as a potential hazard to pedestrians. The objective of this test program was first to deter...
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ftdtic:ADA536509 2023-05-15T16:37:25+02:00 Laboratory Testing of Architectural Exterior Wall Fins Zabilansky, Leonard Burch, William Hall, Tommie COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH 2009-01 text/html http://www.dtic.mil/docs/citations/ADA536509 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA536509 en eng http://www.dtic.mil/docs/citations/ADA536509 Approved for public release; distribution is unlimited. DTIC Snow Ice and Permafrost Safety Engineering Structural Engineering and Building Technology *FINS *LABORATORY TESTS *ARCHITECTURE *ICE *HAZARDS ACCUMULATION EXTERNAL WALLS PHOTOGRAPHS DRAINAGE SAFETY *IRD(ICE RETENTION DEVICES) STADIUMS PEDESTRIANS SHEDDING CONTINUOUS IRD DISCRETE IRD FALLING ICE ICE CONTROL ICE RETENTION STRUCTURES WUK42889 Text 2009 ftdtic 2016-02-23T05:48:51Z Ice and snow accumulation sliding from the exterior wall fins installed on the New Meadowlands Stadium in New Jersey, future home field for the New York Jets and New York Giants football teams, was recognized as a potential hazard to pedestrians. The objective of this test program was first to determine if the hazard existed with the standard fin and secondly to evaluate the performance of four ice retention devices (IRDs). A mock-up was assembled using four fins in a vertical stack with different angles. Four IRDs were tested: three were continuous strips and the fourth was a truncated cone attached to the fin at 12 inches on centers. The IRDs were mounted along the lower edge of the fin. To provide water drainage, all the IRDs were spaced off the fin using 3/16-inch plastic spacers. To assess the effectiveness of the IRDs under similar conditions, IRDs were only installed on the fins on the left side of the mock-up while the right side, or standard fin, was used as a control. Testing confirmed that IRDs are needed to reduce the potential hazard of large sheets of snow and ice sliding off the fin. The continuous barriers are problematic because the drainage paths freeze and water travels to the end of the fin to form large ice columns or because water travels over the top of the barrier to form icicles with limited anchoring. The fourth option, the truncated cone, provides discrete anchoring for the accumulation and allows it to melt in place. The potential for large icicles to form still exists; when they present a hazard to pedestrians they should be physically removed. The original document contains color images. Text Ice permafrost Defense Technical Information Center: DTIC Technical Reports database |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost Safety Engineering Structural Engineering and Building Technology *FINS *LABORATORY TESTS *ARCHITECTURE *ICE *HAZARDS ACCUMULATION EXTERNAL WALLS PHOTOGRAPHS DRAINAGE SAFETY *IRD(ICE RETENTION DEVICES) STADIUMS PEDESTRIANS SHEDDING CONTINUOUS IRD DISCRETE IRD FALLING ICE ICE CONTROL ICE RETENTION STRUCTURES WUK42889 |
spellingShingle |
Snow Ice and Permafrost Safety Engineering Structural Engineering and Building Technology *FINS *LABORATORY TESTS *ARCHITECTURE *ICE *HAZARDS ACCUMULATION EXTERNAL WALLS PHOTOGRAPHS DRAINAGE SAFETY *IRD(ICE RETENTION DEVICES) STADIUMS PEDESTRIANS SHEDDING CONTINUOUS IRD DISCRETE IRD FALLING ICE ICE CONTROL ICE RETENTION STRUCTURES WUK42889 Zabilansky, Leonard Burch, William Hall, Tommie Laboratory Testing of Architectural Exterior Wall Fins |
topic_facet |
Snow Ice and Permafrost Safety Engineering Structural Engineering and Building Technology *FINS *LABORATORY TESTS *ARCHITECTURE *ICE *HAZARDS ACCUMULATION EXTERNAL WALLS PHOTOGRAPHS DRAINAGE SAFETY *IRD(ICE RETENTION DEVICES) STADIUMS PEDESTRIANS SHEDDING CONTINUOUS IRD DISCRETE IRD FALLING ICE ICE CONTROL ICE RETENTION STRUCTURES WUK42889 |
description |
Ice and snow accumulation sliding from the exterior wall fins installed on the New Meadowlands Stadium in New Jersey, future home field for the New York Jets and New York Giants football teams, was recognized as a potential hazard to pedestrians. The objective of this test program was first to determine if the hazard existed with the standard fin and secondly to evaluate the performance of four ice retention devices (IRDs). A mock-up was assembled using four fins in a vertical stack with different angles. Four IRDs were tested: three were continuous strips and the fourth was a truncated cone attached to the fin at 12 inches on centers. The IRDs were mounted along the lower edge of the fin. To provide water drainage, all the IRDs were spaced off the fin using 3/16-inch plastic spacers. To assess the effectiveness of the IRDs under similar conditions, IRDs were only installed on the fins on the left side of the mock-up while the right side, or standard fin, was used as a control. Testing confirmed that IRDs are needed to reduce the potential hazard of large sheets of snow and ice sliding off the fin. The continuous barriers are problematic because the drainage paths freeze and water travels to the end of the fin to form large ice columns or because water travels over the top of the barrier to form icicles with limited anchoring. The fourth option, the truncated cone, provides discrete anchoring for the accumulation and allows it to melt in place. The potential for large icicles to form still exists; when they present a hazard to pedestrians they should be physically removed. The original document contains color images. |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH |
format |
Text |
author |
Zabilansky, Leonard Burch, William Hall, Tommie |
author_facet |
Zabilansky, Leonard Burch, William Hall, Tommie |
author_sort |
Zabilansky, Leonard |
title |
Laboratory Testing of Architectural Exterior Wall Fins |
title_short |
Laboratory Testing of Architectural Exterior Wall Fins |
title_full |
Laboratory Testing of Architectural Exterior Wall Fins |
title_fullStr |
Laboratory Testing of Architectural Exterior Wall Fins |
title_full_unstemmed |
Laboratory Testing of Architectural Exterior Wall Fins |
title_sort |
laboratory testing of architectural exterior wall fins |
publishDate |
2009 |
url |
http://www.dtic.mil/docs/citations/ADA536509 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA536509 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA536509 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766027716030627840 |