Crane Schedule - Specifications
(Revised: 02/04/2015)
The Crane Specifications tab defines the
weight, additional parameters, and clearances of the crane.
Most
of the data on this tab can be derived from the reference table by clicking on
the “Apply Crane Data” button in the Crane Information tab.
Options:
Bridge Weight
In
this edit box, enter the Bridge Weight.
Trolley and Hoist Weight
In
this edit box, enter the Trolley and Hoist Weight.
Wheel Spacing
In this edit box, enter the Wheel Spacing.
If the End Truck has two (2)
wheels, input the centerline distance between the wheels as shown.
If the end truck has four (4)
wheels, the Auxiliary Wheel Spacing field will become active, as shown in the
graphic above. Please refer to the “Auxiliary
Wheel Spacing” description below for a definition of this entry field.
When entering data for Monorail
cranes and when only 1 wheel is selected, the Wheel Spacing field will be
grayed out.
Maximum Wheel Load
In this edit box, enter the Maximum Wheel
Load. The entered value is applied
to each wheel location and should NOT include impact. The required Impact factor will be added
as required by the system when loads are applied to the brackets and frames.
If the end truck has four (4)
wheels, using the maximum wheel load can be conservative as often times the
wheel loads are not equal. If
possible, get specific crane information that includes the Wheel Spacing and
each of the Wheel Loads.
Number of End Truck Wheels
From
this drop list, select the Number of End Truck Wheels. The available options are one (1), two
(2) or four (4). The dropdown list
will show either one (1) or two (2) End Truck Wheels as an option when
inputting a Monorail crane.
Auxiliary Wheel Spacing
When
the Number of End Truck Wheels is set to four (4) this field will become active
and allow data to be entered by the user.
The Auxiliary Wheel Spacing and Wheel Space distances are shown below
for the four (4) End Truck Wheel option.
A
side-by-side comparison of 2 Wheel and 4 Wheel End Trucks is shown below:
Minimum Horizontal Clearance
In
this edit box, enter the Minimum Horizontal Clearance from the crane beam or
rail centerline to the building column flange.
Minimum Vertical Clearance
In
this edit box, enter the Minimum Vertical Clearance from the top of rail or
bottom of Underhung/Monorail beam to the rafter bottom flange.
Headroom Clearance
In
this edit box, enter the Headroom Clearance from the rafter bottom flange to
the bottom of the hoist hook (when in the fully lifted condition).
Wheel Centerline to Bumper
In this edit box, enter the outermost Wheel
Centerline to Bumper.
This is used when you have two cranes in the
same aisle and this value is half of the distance that the two cranes can come
together as measured between the two cranes closest wheels.
Example:
Two cranes can be no closer than 2’-4” (centerline of each
cranes outermost wheel) so the Wheel Centerline to Bumper value entered should
be 1/2/0.
Standard
Controls:
See also:
§ Crane Schedule - Information