|
Nominal thickness of the board mm |
Connection type |
Declared load bearing of the connection N |
|---|---|---|
|
12 |
Insulation fibreboard connection with building wood by stapled connection* |
448 |
|
25 |
Insulation fibreboard connection with building wood by stapled connection* |
468 |
|
12 |
Insulation fibreboard connection with building wood by nailed connection** |
432 |
|
25 |
Insulation fibreboard connection with building wood by nailed connection** |
336 |
* Staples 1,7x25x58, wooden frame 45 mm
** Grooved nail 3,5x90, wooden frame 27 mm
Test report
Determination connection of stapled and nailed strengths of the insulation fibreboards. Fibreboards with different thicknesses and connections by clipper and nail (see figures 1 and 2). The test defined 4 jointing versions and each presents 6 test pieces.
|
Description |
Test piece thickness mm |
Test piece nr |
Fu kN |
Ful N |
Test time | |
|---|---|---|---|---|---|---|
|
Stapled connection |
Insulation fibreboard |
12 |
1 |
1,00 |
500 |
203 |
|
Staples 1,7x25x58 |
Wooden frame |
45 |
2 |
1,00 |
500 |
221 |
|
3 |
1,10 |
550 |
214 | |||
|
4 |
0,98 |
490 |
208 | |||
|
5 |
1,00 |
500 |
190 | |||
|
6 |
1,20 |
600 |
222 | |||
|
Fkesk |
1,05 |
523 | ||||
|
Standarddeviation s |
0,09 |
43 |
|
Description |
Test piece thickness mm |
Test piece nr |
Fu kN |
Ful N |
Test time | |
|---|---|---|---|---|---|---|
|
Stapled connection |
Insulation fibreboard |
25 |
1 |
1,17 |
585 |
196 |
|
Staples 1,7x25x58 |
Wooden frame |
45 |
2 |
1,04 |
520 |
220 |
|
3 |
1,20 |
600 |
194 | |||
|
4 |
1,28 |
640 |
206 | |||
|
5 |
1,14 |
570 |
184 | |||
|
6 |
0,96 |
480 |
197 | |||
|
Fkesk |
1,13 |
566 | ||||
|
Standarddeviation s |
0,11 |
57 |
Fu - load (carrying per fastener)
Ful - load (carrying capacity per shear plane per fastener)
Fk -5% value load (carrying capacity per shear plane per fastener)
Fkesk - mean value
|
Description |
Test piece thickness mm |
Test piece nr |
Fu kN |
Ful N |
Test time | |
|---|---|---|---|---|---|---|
|
Nail connection |
Insulation fibreboard |
12 |
1 |
0,87 |
435 |
150 |
|
Grooved nail 3,5x90 |
Wooden frame |
27 |
2 |
0,7 |
350 |
100 |
|
3 |
0,78 |
390 |
119 | |||
|
4 |
0,86 |
430 |
146 | |||
|
5 |
0,78 |
390 |
139 | |||
|
6 |
0,72 |
360 |
115 | |||
|
Fkesk |
0,79 |
393 | ||||
|
Standarddeviation s |
0,07 |
35 |
|
Description |
Test piece thickness mm |
Test piece nr |
Fu kN |
Ful N |
Test time | |
|---|---|---|---|---|---|---|
|
Nail connection |
Insulation fibreboard |
25 |
1 |
1,02 |
510 |
191 |
|
Grooved nail 3,5x90 |
Wooden frame |
27 |
2 |
1,05 |
525 |
197 |
|
3 |
1,00 |
500 |
216 | |||
|
4 |
0,98 |
490 |
202 | |||
|
5 |
1,00 |
500 |
210 | |||
|
6 |
1,00 |
500 |
180 | |||
|
Fkesk |
1,01 |
504 | ||||
|
Standarddeviation s |
0,02 |
12 |
Fu - load (carrying per fastener)
Ful - load (carrying capacity per shear plane per fastener)
Fk -5% value load (carrying capacity per shear plane per fastener)
Fkesk - mean value
The load bearing 5 % value for one connection type and for a one shear surface was calculated on the bases of test results and according to the formula (follow the standard EVS-EN 14080:2005 annex A analogy):
Fk= k1·Fkesk
where k1 = exp(-2,645+1/SQRT(n))·v(x)+O,15)
