Parallel Steel Wire Suspender System of Arch Bridge

The parallel wire suspender is a new type of arch bridge hanger system with multiple anti-corrosion, new waterproof devices and steerable spherical support devices. It solves the problems of short-term cracking of the HDPE sheath of the cable body, water ingress at the lower end and deformation of the short hanger, thereby improving the safety and durability of the hanger.

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ADVANTAGES

Selection of Parallel Steel Wire Suspenders:

1. In order to adapt to the influence of temperature changes and reduce the additional stress caused by the longitudinal displacement of the bridge deck with short suspenders, if necessary, 1 to 3 pairs of suspenders can be used as type III or IV suspenders according to different structures.

2. In order to ensure the safety of the structure, it is recommended that the safety factor of the suspender n ≥ 2.5 ~ 3. If the safety factor is too large, it will cause the cable body to not be straightened, the force is not large enough, and the nut is easy to loosen.

3. When designing the structure, the position of the shortest suspender should be reasonably arranged, and the free length of the shortest suspender (the length from the lower end of the arch rib to the upper end of the beam) should not be less than 2 meters.

4. To ensure the waterproofness of the lower end, the embedded pipe at the beam end must be extended 100 ~ 150mm from the bridge deck structure.

5. In order to facilitate the replacement of cables, it is recommended to use a double suspender structure if the structure allows.

USE

Arch bridges have long been the main form of large-span bridges, characterized by their beautiful appearance, large span capacity, aesthetics, economy, and minimal interference with traffic during construction.

Suspension rods and tie bars are one of the most critical load-bearing components of arch bridges, and their reliability, durability, and adaptability are related to the safety and normal use of bridge structures.

SPECIFICATIONS

Ⅰ. The Structure of the Boom:

Parallel steel wire hangers are divided into six types according to structural applications: Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and Ⅵ.

Among them: cold cast anchor parallel steel wire hangers can be applied to: types Ⅰ to Ⅳ; hot cast anchor parallel steel wire hangers can be applied to: types Ⅴ to Ⅵ.

Parallel Steel Wire Suspender System of Arch Bridge

Type I boom technical parameters (supporting diameter Φ5, σb=1670MPa steel wire cold cast anchor) (unit：mm)

Boom specification	Breaking force（KN）	Designed cable force K=3(KN)	Designed cable force K=2.5(KN)	Embedded pipe D1 X t1	Anchor base plate E1 X E1 X t3	Stainless steel casing d x t	Tension end protective cover B1 x h1	Fixed end protective cover B2 x h2
YLZM5-19	623	208	249	Φ140 x 6	260 x 260 x 30	Φ42(45) x 0.5	Φ196 x 240	Φ196 x 240
YLZM5-37	1213	404	485	Φ159 x 7	280 x 280 x 30	Φ52(56) x 0.5	Φ216 x 290	Φ216 x 255
YLZM5-55	1803	601	721	Φ168 x 6	290 x 290 x 30	Φ58(62) x 0.5	Φ226 x 305	Φ226 x 265
YLZM5-61	2000	667	800	Φ168 x 6	290 x 290 x 30	Φ62(67) x 0.5	Φ226 x 305	Φ226 x 265
YLZM5-73	2394	798	957	Φ194 x 9	305 x 305 x 30	Φ66(70) x 0.5	Φ246 x 335	Φ246 x 275
YLZM5-85	2787	929	1115	Φ194 x 5	320 x 320 x 30	Φ68(73) x 0.5	Φ256 x 365	Φ256 x 305
YLZM5-91	2984	995	1194	Φ194 x 5	320 x 320 x 30	Φ72(78) x 0.5	Φ256 x 365	Φ256 x 305
YLZM5-109	3574	1191	1430	Φ194 x 5	320 x 320 x 30	Φ75(81) x 0.5	Φ266 x 350	Φ266 x 310
YLZM5-121	3968	1323	1587	Φ219 x 10	330 x 330 x 30	Φ78(84) x 0.5	Φ276 x 370	Φ276 x 330
YLZM5-127	4164	1388	1666	Φ219 x 10	330 x 330 x 30	Φ82(91) x 0.5	Φ276 x 370	Φ276 x 330
YLZM5-139	4558	1519	1823	Φ219 x 6	360 x 360 x 35	Φ85(91) x 0.5	Φ306 x 410	Φ306 x 370
YLZM5-151	4951	1650	1981	Φ219 x 6	360 x 360 x 35	Φ86(93) x 0.5	Φ306 x 410	Φ306 x 370

Parallel Steel Wire Suspender System of Arch Bridge

Type I ~IV boom technical parameters (supporting diameter Φ7, σb=1670MPa steel wire cold cast anchor) (unit：mm)

Boom specification	Breaking force（KN）	Designed cable force K=3(KN)	Designed cable force K=2.5(KN)	Arch end embedded pipe D1 X t1	Beam end embedded pipe D2 X t2	Anchor base plate E1 X E1 X t3	Stainless steel casing d x t
YLZM7-37	2378	793	951	Φ180 x 8	Φ152 x 6	300 x 300 x 30	Φ68(69) x 0.5
YLZM7-55	3535	1178	1414	Φ194 x 5	Φ159 x 4.5	320 x 320 x 30	Φ75(78) x 0.5
YLZM7-61	3920	1307	1568	Φ203 x 6	Φ180 x 9	330 x 330 x 30	Φ80(84) x 0.5
YLZM7-73	4692	1564	1877	Φ219 x 7.5	Φ180 x 7	360 x 360 x 35	Φ85(91) x 0.5
YLZM7-85	5463	1821	2185	Φ219 x 7.5	Φ194 x 7	370 x 370 x 40	Φ90(94) x 0.5
YLZM7-91	5848	1949	2339	Φ273 x 12	Φ194 x 7	390 x 390 x 40	Φ96(100) x 0.5
YLZM7-109	7005	2335	2802	Φ273 x 15	Φ225 x 12	420 x 420 x 40	Φ100(107) x 0.5
YLZM7-121	7777	2592	3111	Φ273 x 12	Φ225 x 10	440 x 440 x 40	Φ106(111) x 0.5
YLZM7-127	8162	2721	3265	Φ273 x 9	Φ225 x 10	460 x 460 x 40	Φ112(119) x 0.5
YLZM7-139	8933	2978	3573	Φ273 x 9	Φ245 x 10	480 x 480 x 40	Φ114(120) x 0.5
YLZM7-151	9705	3235	3882	Φ299 x 15	Φ245 x 10	500 x 500 x 45	Φ116(123) x 0.5
YLZM7-163	10476	3492	4190	Φ299 x 12	Φ273 x 12	520 x 520 x 45	Φ121(124) x 0.5
YLZM7-187	12018	4006	4807	Φ299 x 7.5	Φ273 x 6.5	550 x 550 x 50	Φ128(134) x 0.5
YLZM7-199	12790	4263	5116	Φ325 x 12	Φ299 x 9	570 x 570 x 50	Φ131(137) x 0.5
YLZM7-211	13561	4520	5424	Φ320 x 10	Φ299 x 9	590 x 590 x 50	Φ136(142) x 0.5

Type I ~IV boom technical parameters (unit：mm)

Boom specification	Tension end protective cover B1 x h1	Fixed end protective cover B2 x h2		Pull rod D3	Nut outer diameter D4	Transition plate E2	Pin diameter D5(min)
Boom specification	Tension end protective cover B1 x h1	Ⅰtype	Ⅱ type，Ⅲ type	Pull rod D3	Nut outer diameter D4	Transition plate E2	Pin diameter D5(min)
YLZM7-37	Φ246 X 290	Φ246 x 250	Φ250 x 260	M90 x 6	Φ190	Φ230	Φ85
YLZM7-55	Φ266 X 350	Φ266 x 310	Φ270 x 280	M110 x 6	Φ210	Φ250	Φ100
YLZM7-61	Φ276 X 370	Φ276 x 330	Φ280 x 300	M115 x 8	Φ220	Φ260	Φ105
YLZM7-73	Φ306 X 410	Φ306 x 370	Φ290 x 300	M125 x 8	Φ230	Φ270	Φ115
YLZM7-85	Φ316 X 410	Φ316 x 370	Φ310 x 320	M135 x 8	Φ240	Φ280	Φ125
YLZM7-91	Φ316 X 430	Φ316 x 380	Φ320 x 320	M140 x 8	Φ240	Φ280	Φ130
YLZM7-109	Φ336 X 490	Φ336 x 400	Φ340 x 320	M155 x 10	Φ260	Φ305	Φ140
YLZM7-121	Φ346 X 490	Φ346 x 410	Φ350 x 320	M165 x 10	Φ270	Φ315	Φ150
YLZM7-127	Φ350 X 470	Φ350 x 390	Φ350 x 350	M170 x 10	Φ270	Φ315	Φ155
YLZM7-139	Φ350 X 500	Φ350 x 420	Φ370 x 400	M175 x 10	Φ275	Φ320	Φ160
YLZM7-151	Φ360 X 510	Φ360 x 430	Φ380 x 450	M180 x 10	Φ300	Φ360	Φ170
YLZM7-163	Φ370 X 510	Φ370 x 430	Φ410 x 460	M190 x 10	Φ325	Φ390	Φ175
YLZM7-187	Φ380 X 550	Φ380 x 470	Φ420 x 480	M200 x 10	Φ335	Φ400	Φ185
YLZM7-199	Φ400 X 580	Φ400 x 480	Φ450 x 500	M210 x 10	Φ360	Φ430	Φ190
YLZM7-211	Φ410 X 590	Φ410 x 500	Φ450 x 530	M215 x 10	Φ360	Φ430	Φ200

Parallel Steel Wire Suspender System of Arch Bridge

Type Ⅴ~Ⅵ boom technical parameters (supporting diameter Φ5, σb=1670Mpa steel wire hot cast anchor) (unit：mm)

Specifications model	B	C	F(min)	G	L2	Designed cable force K=2.5(KN)	Designed cable force K=3(KN)	Breaking force（KN）
YRM5-19	33	40	50	130	105	249	208	623
YRM5-37	40	65	70	160	120	485	404	1213
YRM5-55	48	80	85	190	135	721	601	1803
YRM5-61	50	90	90	200	140	800	667	2000
YRM5-73	53	100	100	215	185	957	798	2393
YRM5-85	58	115	105	235	195	1115	929	2787
YRM5-91	60	120	110	245	200	1194	995	2983
YRM5-109	63	135	120	255	215	1430	1191	3574
YRM5-121	65	150	130	265	230	1587	1323	3967
YRM5-127	68	155	130	280	265	1666	1388	4164
YRM5-139	70	165	135	290	275	1823	1519	4557
YRm5151	73	160	145	300	285	1981	1650	4951

Type Ⅴ~Ⅵ boom technical parameters (supporting diameter Φ5, σb=1670Mpa steel wire hot cast anchor) (unit：mm)

Specification model	B	C	F(min)	G	L2	Designed cable force K=2.5(KN)	Designed cable force K=3(KN)	Breaking force（KN）
YLZM7-37	40	100	85	180	180	951	793	2378
YLZM7-55	50	115	100	210	220	1414	1178	3535
YLZM7-61	50	125	105	225	225	1568	1307	3920
YLZM7-73	55	140	115	250	225	1877	1564	4692
YLZM7-85	60	150	125	270	280	2185	1821	5463
YLZM7-91	60	155	130	280	295	2339	1949	5848
YLZM7-109	65	170	140	305	315	2802	2335	7005
YLZM7-121	70	180	150	325	340	3111	2592	7777
YLZM7-127	70	185	155	335	340	3264	2720	8162
YLZM7-139	75	190	160	345	365	3573	2977	8933
YLZM7-151	75	205	170	370	365	3881	3234	9704
YLZM7-163	80	210	175	375	390	4190	3491	10475
YLZM7-187	85	225	185	405	420	4807	4006	12018
YLZM7-199	90	230	190	410	445	5115	4263	12789
YLZM7-211	90	240	200	435	445	5424	4520	13560

Note:

1. The optional accessories in type I to IV hangers are hanger anchor accessories, which can be selected according to the bridge structure and technical requirements.

2. In Figures V and VI, the dimensions of A and E are determined according to the structure of the connected parts. The dimensions of L1 and L3 are determined according to the required hanger adjustment amount.

3. The shape and parameters of the anchor and accessories can be appropriately adjusted according to the different requirements of the project, and the final shape and parameters shall be subject to the contract.

Ⅱ. Suspension Cold Cast Anchor Structure:

Note:

a. The opening in the middle of the anchor plate is the same as the inner diameter of the embedded pipe;

b. When calculating the anchor length of the cable, the fixed end nut is placed in the middle of the fixed end anchor cup L2;

c. When calculating the anchor length of the cable, the tension end nut is placed at a distance of (L1-H1)/2 from the inner end face.

Ⅲ. Suspension Hot Cast Anchor Structure:

RM hot-cast anchors are divided into six types: Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and Ⅵ according to different structures.

PACKAGE

Packaging：

1) All the products are packed with seaworthy packing.
2) Customer's special requirement for packing can be satisfied.
3) Air freight, sea freight and truck freight are all available.

TAGS: Parallel Steel Wire Suspender System of Arch Bridg, Suspender Arch Bridge System, Arch Bridge Cable System, Suspender Arch Bridge Cable System, Arch Bridge Cable Tie Rod System