GBT554-2008 Marine Bollard Type B
Introduction:
GBT554-2008 is a Chinese standard for marine bollards, which are used to secure ships or boats to a pier, wharf, or quay.
Type B marine bollards are designed for use with medium-sized ships or boats, and they typically have a cylindrical shape with a base plate that is bolted to the ground. The bollard is typically made of cast iron or cast steel, and it has a smooth surface to prevent damage to the mooring lines.
The standard specifies the dimensions, material, and load capacity requirements for Type B marine bollards. The load capacity varies depending on the size and configuration of the bollard, but it is typically in the range of 20 to 200 metric tons.
Type B marine bollards are commonly used in ports, marinas, and other marine facilities to provide a secure point of attachment for vessels. They are designed to withstand the forces of wind, waves, and currents, as well as the weight and movement of the vessel being moored.
Drawings of GBT554-2008 Marine Bollard Type B:
Parameters of GBT554-2008 Marine Bollard Type B:
Nominal
Dia.
(mm)
Max.
Breaking
Load
(KN)
A
D
D1
h
≧t
≧t1
t2
H
Deck
Without
Plywood
Deck
With
Plywood
160
49
400
168
210
8
10
6
9
250
310
200
78
500
219
270
8
10
8
9
300
360
250
118
630
273
335
8
11
10
9
380
440
315
196
800
325
390
10
15
12
9
480
540
355
255
890
351
420
10
17
13
12
530
590
400
314
1000
402
480
10
18
14
12
600
660
450
382
1130
450
545
10
19
16
12
680
740
500
451
1250
500
600
12
20
18
12
750
810
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