9.1.1 Details of
the deck loading resulting from the proposed stowage or operation
of vehicles are to be supplied by the designer and shown on the submitted
plans. These details are to include axle and wheel spacing, the wheel
load, type of tyre and tyre print dimensions for the vehicles. The
vehicle types and wheel loads for which the vehicle decks have been
approved are to be included in the ACV’s documentation and also
clearly displayed on the deck.
9.1.2 Details of
the deck loading resulting from the proposed stowage of cargo are
to be supplied by the designer and shown on the submitted plans. The
loads for which the cargo decks have been approved are to be included
in the ACV’s documentation and also clearly displayed on the
deck.
9.1.3 The total
deck load for each vehicle is distributed through the tyre footprints
and is to be taken as:
|
w
VDP
|
= |
W
VD (1 + a
x,i)
kN
|
where
W
VD is
the weight of the vehicle specified by the designer, in kN
ax,i is given in Ch 3, 2.2 Acceleration due to wave impact 2.2.3
The cargo deck pressure is to be taken as:
|
P
CDP
|
= |
P
CD (1 + a
x,i)
kN/m2
|
where
P
CD is
the pressure exerted by the cargo on deck specified by the designer
ax,i is given in Ch 3, 2.2 Acceleration due to wave impact 2.2.3
9.1.4 Supporting
members which are subjected to local compressive and/or shear loads
are to have adequate buckling strength.
9.1.5 Details of
the vehicle and cargo tie-down arrangements are to be provided. The
Safe Working Load (SWL) of the vehicle and cargo tie-downs are to
be used to determine the strength of the tie-down attachment to the
deck and the supporting structure. When considering the loads, all
expected directions of operation are to be taken into account.
9.1.6 For concentrated
loads, local reinforcement to distribute the load is to be fitted
as necessary.