GLOSSARY
ABBREVIATIONS, DEFINITIONS, ACRONYMS, AND BREVITY CODES
A --
- Indicates edge of gap, far bank.
A' --
- Indicates edge of gap, near bank.
AA -- Anchor assembly.
AA(L) -- Long link of anchor assembly.
AA(S) -- Short link of anchor assembly.
AF -- Antiflutter tackle.
AR --
- Angle of repose which is marked on site with A (far bank) and A' (near bank) pegs.
AR Gap --
- The distance from the edge of firm ground (A') on the near bank to the edge of firm ground (A) on the far bank.
BES -- Bridge erection set.
Boom Marker --
- Carrying bar (painted orange) which marks the position of the next booming or launching point.
BP -- Building pedestal (SS only), baseplate (SS and DS)
brg -- bridge
BSB -- Bankseat beam.
C --
- Distance of water below line joining FRB and F at distance W from FRB (negative). Fine for up to 2E + 12 bays. For 2E + 13 through 2E + 22 bays DS bridges, a CRB is required.
CG Marker --
- Carrying bar (painted blue) which marks the center of gravity of the bridge during construction.
cm -- centimeter
cntr -- counter
conf -- configuration
const -- construction
CRB --
-
- Capsill roller beam. This type of roller beam must be used for 2E + 13 through 2E + 22 bays DS bridges with or without LRS.
|
|
-- Centerline. |
D --
- Deflection of bridge during launch in relation to line joining FRB and F pegs.
del -- delaunch
dist -- distance
DS -- Double-story bridge construction.
DU -- Deck unit.
E -- End of bridge.
elev -- elevation
F --
- Final position of the far end of bridge as marked with the F peg.
F' --
- Final position of the near end of bridge as marked with the F' peg.
FB -- Far bank
FRB -- Front roller beam.
G --
- Distance between O peg and baseline.
gal -- gallon
H --
- Far bank height at F peg, relative to the baseline.
Ht -- Height.
kg -- kilogram
L -- Length of bridge.
LAU -- Launch.
lb -- pound
lgth -- length
LLN -- Light launching nose.
LNCG -- Launching nose cross girder.
LNH -- Launching nose heavy.
LR --
- Landing roller. Used by itself for 4 through 8 bays of SS. Used in LRP for all other bridge lengths.
LRD --
- Long ramp and deck pallet. This is last pallet to be off-loaded on a bridge site. Should be loaded onto push vehicle to maintain a proper counterweight.
LRP --
- Landing roller pedestal (MK I for 2E + 1 through 2E + 12 bays DS, MK II for 2E + 13 through 2E + 22 bays DS with or without LRS).
LRS -- Link reinforcement set.
LT -- Light tackle.
LZ -- Landing zone.
m -- meter
max -- maximum
MGB -- medium girder bridge
min -- minimum
MLC -- Military load class.
mps -- meters per second
N --
- Nose tip height above baseline.
N1 --
- Launching nose heavy, one story high.
N2 --
- Launching nose heavy, two stories high.
NB -- Near bank
NCO -- noncommissioned officer
NSN -- national stock number
O --
- Distance R from RB (single-story), FRB (double-story), and CRB (double-story with or without LRS) as marked with the O peg.
PT -- Post-tensioning assembly.
R --
- Maximum distance to the rear of the bridge during construction (excluding push bar and vehicle).
RB -- Roller beam.
rcvr -- recover
rem -- remove
RRB -- Rear roller beam.
spec -- special
SS -- Single-story bridge construction.
T --
- Height of near bank end of bridge in relation to baseline.
thru -- through
TM -- technical manual
V --
- For delaunching purposes, the maximum allowable distance between the FRB or CRB to the LRP for bridges requiring a launching nose.
W --
- Distance of end taper panel from FRB for maximum deflection.
WL -- Waterline.
wt -- weight
1LL -- One long reinforcing link.
1SL -- One short reinforcing link.
6N1, 7N1, and 8N1 --
- Types of single-story nose construction. The first number shows the number of heavy nose sections used. The N1 means single-story nose.
6N1 + 3N2 --
- Type of double-story nose construction. The 6N1 is explained above. The 3N2 means that three heavy nose sections are used in second story. The N2 means double-story nose.
2 + 3 + or 8 through 10 --
- Describes number of bays to be added or removed. The 2 + 3 + means add second and third bays, or remove third and second bays if numbers reversed, 3 + 2 +. Similarly, the 8 through 10 means add bays 8 through 10, or remove bays 10 through 8, if reversed.
Boom to --
- Movement of bridge until panel point given is over RB (for SS) or RRB (for DS).
Launch to --
- Movement of bridge until panel point given is over RB, FRB, or CRB.
3D, 8D, 20D, 27D + 6C, and 37D + 6C --
- Counterweight codes giving the number of deck units and curbs used.
(4p0), (2p4), and (Bp3) --
- Examples of the way that the center of gravity (CG) is shown.
|
NEWSLETTER
|
| Join the GlobalSecurity.org mailing list |
|
|
|
