GBT554-1996 Marine Double Bollard Type B

GBT554-1996 Marine Double Bollard Type B

Description:

The double bollard type B is designed to have two horns or protrusions, one on each side of the central cylinder, which helps in securing the mooring ropes or cables. The bollard is typically made of cast iron or cast steel and is designed to withstand the high stresses and loads that are exerted on it during mooring operations.

The standard defines the dimensions, materials, and manufacturing process for the double bollard type B. It also specifies the load-bearing capacity, durability, and corrosion resistance of the bollard. The standard also provides guidelines for the installation and maintenance of the bollard.

Drawing of GBT554-1996 Marine Bollard Type B:

Parameters of GBT554-1996 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

Model Type: Marine Double Bollard;

Material: Steel Plate;

Certificates: CCS, ABS, BV, LR, NK, RINA, etc.;

Standard: GBT554-1996.

Technical Details:

1. The base height h of the A-type bollards listed in the table is the minimum value, which is only applicable to steel decks. When installed on steel decks with wooden decks, the upper surface of the bases should be 15mm higher than the wooden decks;

2. The piles of type A and B with bollards can be covered with stainless steel plates as required, and the stainless steel grade is 1Cr18Ni9Ti;

3. For A and B-type bollards with a nominal diameter less than or equal to 500mm, they can be directly made of seamless steel pipes or welded with steel plates;

4. For A and B-type bollards with a nominal diameter greater than or equal to 250mm, baffles can be installed as required.

Marine Mooring Bollard in Factory: