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MARINE BOLLARD

ISO 13795-2012 Marine Double Bollard

Introduction:

ISO 13795:2012 is a standard that specifies the requirements and dimensions of marine double bollards. A bollard is a type of post or pole that is commonly used to secure ships or boats to a dock or other mooring location.

The double bollard is a specific type of bollard that is designed to provide greater strength and stability compared to a single bollard. It consists of two vertical posts that are connected by a horizontal crossbar, forming a "T" shape.

The standard covers the materials, construction, and performance requirements of the double bollard. It specifies the dimensions of the bollard, such as the height and width of the posts, the diameter of the crossbar, and the distance between the posts. The standard also outlines the testing procedures that the bollards must undergo to ensure that they meet the specified performance requirements.

Parameters s of ISO 13795-2012 Marine Double Bollard Type A:

Nominal Size Dn	D1	D2	D3	D4	H1	H2	H3	H4	b	L	E	t	t1	t2	R
150	165.2	185	-	80	330	90	70	60	155	400	-	8.0	6	6	40
200	216.3	240	-	130	395	115	70	60	205	500	-	8.0	6	6	50
250A	267.4	290	-	160	505	135	90	75	250	630	-	12.0	9	8	60
250B	267.4	290	-	160	505	135	90	75	250	630	-	10.0	8	7	60
300A	318.5	340	150	185	600	150	110	85	290	800	300	21.5	16	9	70
300B	318.5	340	150	185	600	150	110	85	290	800	300	12.0	9	9	70
350A	355.6	380	170	200	685	175	130	105	340	890	350	26.0	19	11	80
350B	355.6	380	170	220	685	175	130	105	340	890	350	14.0	10	9	80
400A	406.4	430	190	230	730	185	145	115	380	1000	380	28.0	20	13	85
400B	406.4	430	190	250	730	185	145	115	380	1000	380	15.0	11	11	85
450A	457.2	480	210	265	770	195	160	120	425	1100	410	29.0	21	14	90
450B	457.2	480	210	285	770	195	160	120	425	1100	410	14.5	11	11	90
500A	508.0	530	235	295	830	230	200	150	480	1250	460	32.0	23	16	100
500B	508.0	530	235	320	830	230	200	150	480	1250	460	14.5	11	11	100
550A	558.8	580	255	330	900	270	200	180	520	1380	540	31.0	22	16	110
550B	558.8	580	255	350	900	270	200	180	520	1380	540	21.0	16	11	110
600	609.4	630	280	365	950	300	200	200	560	1550	600	33.0	23	16	120

SWL of ISO 13795-2012 Marine Double Bollard Type A:

Nominal Size	Welding leg length		SWL						Calculated weight
Nominal Size	Welding leg length		For mooring purposes (Figure-of-eight belay)				For towing purposes (eye splice)		Calculated weight
Dn	z1	z2	One-rope use		Two-rope use				(kg)
Dn	z1	z2	(kN)	(t)	(kN)	(t)	(kN)	(t)	(kg)
150	3.5	3.5	54	5.5	49	5.0	383	10	29
200	3.5	3.5	82	8.4	65	6.7	579	13	46
250A	5.5	4	156	16	134	14	1315	27	107
250B	5.5	4	127	13	108	11	215	22	91
300A	10.5	4	332	34	306	31	3365	62	281
300B	10.5	4	186	19	161	16	352	36	166
350A	12.5	5	443	45	418	43	5062	85	431
350B	7	4	244	25	216	22	2855	50	241
400A	12.5	6	594	61	521	53	6632	106	570
400B	8	5	326	33	269	27	3816	67	322
450A	12	7	753	77	612	62	8201	124	712
450B	8	7	382	39	292	30	4483	78	379
500A	12.5	8	992	101	757	77	10928	154	960
500B	8	5	457	47	326	33	5474	93	465
550A	11.5	8	1131	115	812	83	12635	165	1123
550B	11.5	5	781	80	541	55	9280	159	787
600	11.5	8	1401	143	948	97	15539	193	1391

Parameters of ISO 13795-2012 Marine Double Bollard Type B:

Nominal Size Dn	D1	D2	H1	H2	h1	h2	b	L	L1	E	t	t1	t2	R
150	165.2	185	320	80	62	70	225	400	670	145	8.0	8	6	40
200	216.3	240	365	85	67	70	290	500	860	160	8.0	8	6	50
250A	267.4	290	470	100	79	90	360	630	1065	215	12.0	11	8	60
250B	267.4	290	470	100	79	90	360	630	1065	215	10.0	8	7	60
300A	318.5	340	575	125	95	110	430	800	1300	325	21.5	20	9	70
300B	318.5	340	575	125	95	110	430	800	1300	325	12.0	9	9	70
350A	355.6	380	655	145	108	130	480	890	1475	360	26.0	23.5	11	80
350B	355.6	380	655	145	119	130	480	890	1475	360	14.0	13	9	80
400A	406.4	430	705	160	121	145	550	1000	1630	400	28.0	26	13	85
400B	406.4	430	705	160	133	145	550	1000	1630	400	15.0	13.5	11	85
450A	457.2	480	745	170	131	160	620	1100	1810	430	29.0	26	14	90
450B	457.2	480	745	170	144	160	620	1100	1810	430	14.5	13	11	90
500A	508.0	530	790	190	146	200	690	1250	2040	500	32.0	29	16	100
500B	508.0	530	790	190	162	200	690	1250	2040	500	14.5	13	11	100
550A	558.8	580	840	210	167	200	750	1380	2240	560	31.0	28	16	110
550B	558.8	580	840	210	176	200	750	1380	2240	560	21.0	19	11	110
600	609.4	630	875	225	182	200	820	1550	2490	660	33.0	28	16	120

SWL of ISO 13795-2012 Marine Double Bollard Type B:

Nominal Size	Welding leg length				SWL						Calculated weight
Nominal Size	Welding leg length				For mooring purposes (Figure-of-eight belay)				For towing purposes (eye splice)		Calculated weight
Dn	z1	z2	z3	z4	One-rope use		Two-rope use
Dn	z1	z2	z3	z4	(kN)	(t)	(kN)	(t)	(kN)	(t)	(kg)
150	3	3	6	4	54	5.5	49	5.0	540	10	45
200	3	3	6	4	82	8.4	65	6.7	795	13	68
250A	4	4.5	8	6	156	16	134	14	1736	27	150
250B	3	3.5	6	4	127	13	108	11	216	22	119
300A	4	8	12	10	332	34	306	31	4365	62	383
300B	4	5	8	6	186	19	161	16	353	36	203
350A	5	10	14	12	443	45	418	43	6543	85	582
350B	4	5.5	8	16	244	25	216	22	3757	50	333
400A	6	11	16	13	594	61	521	53	8819	106	793
400B	5	5.5	8	7	326	33	269	27	4983	67	441
450A	7	11	16	13	753	77	612	62	10820	124	979
450B	7	5.5	8	7	382	39	292	30	5837	78	517
500A	8	12	17	15	992	101	757	77	14470	154	1321
500B	5	5.5	8	7	457	47	326	33	7102	93	631
550A	8	11	17	14	1131	115	812	83	16628	165	1530
550B	5	8	12	10	781	80	541	55	11949	159	1059
600	8	11	17	14	1401	143	948	97	20042	193	1850