|
TABLE
INDICATING THE LOADING CAPACITY OF THE STORAGE FLOOR MADE IN
STANDARD BULGED STAVES FOR EXTERNAL USE SMOOTH STAVES. (HOLDED
STAVES - 15%)
|
DISTANCE
BETWEEN TWO SUBSEQUENT SUPPORT
|
LOADING
CAPACITY IN Kg/m² WITH UNIPHORM DISTRIBUTION OF THE WEIGHT
|
RISEmm
|
RATIO
BETWEEN RISE AND DISTANCE
|
SUGGESTIONS
FOR THE SELECTION OF THE DIFFERENT LOADING CAPACITY
|
|
THICKNESS
OF THE STAVES
|
|
10
/ 10
|
12
/ 10
|
15
/ 10
|
20
/ 10
|
|
800
|
*
1.400
|
*
2.200
|
*
2.875
|
4.000
|
1,6
|
1
/ 500
|
.
|
|
1.000
|
*
1.200
|
*
1.680
|
2.092
|
2.930
|
3,1
|
1
/ 322
|
Max.
load. cap. allowed
|
|
*
960
|
1.352
|
1.684
|
2.359
|
2,5
|
1
/ 400
|
Adwiswed loading capacity |
|
1.250
|
*
800
|
1.120
|
1.400
|
2.000
|
5,0
|
1
/ 250
|
Max.
load. cap. allowed |
|
*
660
|
933
|
1.167
|
1.667
|
4,2
|
1
/ 300
|
. |
|
*
500
|
700
|
875
|
1.250
|
3,1
|
1
/ 400
|
Adwiswed
loading capacity |
|
1.500
|
530
|
820
|
1.043
|
1.411
|
7,0
|
1
/ 214
|
Max.
load. cap. allowed |
|
378
|
585
|
744
|
1.006
|
5,0
|
1
/ 300
|
. |
|
283
|
439
|
558
|
755
|
3,7
|
1
/ 400
|
Adwiswed
loading capacity |
|
1.750
|
389
|
571
|
743
|
1.029
|
8,7
|
1
/ 200
|
Max.
load. cap. allowed |
|
259
|
381
|
495
|
686
|
5,8
|
1
/ 300
|
. |
|
194
|
285
|
371
|
514
|
4,4
|
1
/ 400
|
Portata
consigliata |
|
2.000
|
294
|
435
|
542
|
784
|
10,7
|
1
/ 187
|
Max.
load. cap. allowed |
|
183
|
271
|
338
|
489
|
6,7
|
1
/ 300
|
.. |
|
137
|
203
|
252
|
367
|
5,0
|
1
/ 400
|
Adwiswed
loading capacity |
|
2.500
|
189
|
260
|
360
|
500
|
15,0
|
1
/ 167
|
Max.
load. cap. allowed |
|
105
|
145
|
200
|
278
|
8,3
|
1
/ 300
|
. |
|
79
|
109
|
150
|
209
|
6,3
|
1
/ 400
|
Adwiswed
loading capacity |
| peso
in kg/m² |
12,8
|
15,4
|
19,2
|
25,6
|
.
|
.
|
|
| *
the junction bolt between the staves, for these values, must be
under the support not in the middle od the span. |
|
|
|
HOW
TO READ THE TABLE
The
table refers to bulged staves, bulged staves for external use and smooth
staves. For the holed staves, the loading capacity is 15% less. The
datas have been obtained operating on staves rested on the two extreme
sides and joined together by means of a screw M8 positioned on the middle
of the span. The weight on them was uniformly distributed.
For each distance between two subsequent supports, we give different
value of loading capacity: the first line correspond to the maximun
loading capacity, the subsequent lines show the loading capacity relating
to the most used rises.
In all the tests we always reached the collapse point of the staves:
this happen when the test load is three times more than the maximum
allowed one.
HOW
TO USE THE TABLE: we want a walking surface capable to support a
weight of 550 kg/m² with a distance between two subsequent supports
of mm 1.500: looking at the table, with such distance , we find
that we can use staves 12/10 with a rise 1/300 and a loading capacity
585 kg/m² or staves with thickness 15/10, rise 1/400 and loading
capacity 558 kg/m².
When the rises requested are different from those indicated in the table,
modify proportionally the load.
EX.: with bulged staves 15/10 on a distance of mm 1.500, the
maximum loading capacity is 1.043 kg. with rise of mm 7 equal to a ratio
rise/distance of 1/214 as indicated in the table.
If we want to modify the ratio rise/distance from 1/214 to 1/350 we
will obtain a loading capacity: (1.043 x 214) : 350 = 638 Kg/m²
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SRL
