CLADDING AND FIXING CONFERENCE Luxembourg, 3 & 4 of September 2014 Shelter Fixings for Flexible Fabrics 2/2 – Fixings TO FRAMEWORK
Javier Vila Ferrero, IFRC-SRU 1
Shelter (non structural) fixings for flexible fabrics
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True?
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Fixings to framework tested
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Test methodology
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Test methodology DOUBLE SPOT TEST SET-UP
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PULLING SPOT TEST SET-UP
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Analyzed data
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Analyzed data
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Fixings to framework COMPARATIVE Double spot & pulling test / Simple edge / Fabric: PE IFRC
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Best fixings
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1 3 9
Best fixings
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2
3
3
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End shape variants
❼ I-SHAPE
L-SHAPE
U-SHAPE
@-SHAPE
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End shape variants
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U-SHAPE is 2,5 times stronger
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Edge types tested
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Edge types tested
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Double hem is almost 2 times stronger
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Edge types tested
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Reinforcing the edge with a bar increases 50% the resistance
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Nail position comparative
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An inclined nail does not increase the resistance
Bendind the back of the nail (when possible) provides 3 times more resistance in the pulling test
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Recomended fixings
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Try allways to nail the edge in U-SHAPE position
PHOTO: DANIEL LEDESMA
Whenever possible use a stripe of wood over the fabric when nailing it
If there is no strips of wood available, the BIGHEAD NAIL is a good and balanced option If only SIMPLE NAILS are available use a metallic (no plastic) bottle cap as washer 17
Plastic sheeting revision
True?
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Woven fabric asymmetric resistance
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Pulling position of the 0° Test
Pulling position of the 0° Test
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Woven fabric asymmetric resistance
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Pulling position of the 90° Test
Pulling position of the 90° Test 20
Woven fabric asymmetric resistance
0째 position pulling test of the wowen PE IFRC is 30% stronger than 90째 position
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Best fixings
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Cecilia Braedt, Coordinator / cecilia.braedt@croix-rouge.lu T.: +352.27.55.89.02 Vincent Virgo, Research Officer / vincent.virgo@croix-rouge.lu Daniel Ledesma, Research Officer / daniel.ledesma@croix-rouge.lu Javier Vila Ferrero, Research Officer / javiervf@gmail.com T.: +352.27.55.89.03 IFRC-SRU, 10 CitĂŠ Henri Dunant, L-8095 Bertrange, Luxembourg 23