Suspender System of Suspension Bridge

The cables for the suspension bridge suspender system can be selected from parallel steel wires, steel wire ropes, and steel strands. The technical indicators of suspension bridge suspenders shall comply with the provisions of the current version of JT/T 1199 Technical Standards for Highway Suspension Bridge Suspenders.

Our company provides two types of suspender systems: extruded tension-type suspenders and parallel steel wire suspenders. The specific structure and technical parameters of the extruded tension-type suspender system are detailed in G-type Extruded Compression Steel Strand Suspender System.

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ADVANTAGES

The parallel steel wire suspender adopts PES (FD) low stress anti-corrosion structure, new waterproof device, and rotatable spherical support device to solve the problems of short-term cracking of the HDPE sheath, water ingress at the lower end, and deformation of the short suspender as a whole, thereby improving the safety and durability of the suspender.

The most common connection forms between the suspension cable and the stiffening beam are pin connection and anchor head pressure bearing. The pin connection is the most widely used in various types of suspension bridges.

USE

SPECIFICATIONS

The most common connection forms between the suspension cable and the stiffening beam are pin connection and anchor head pressure bearing.

The pin connection is the most widely used in various types of suspension bridges.

Suspender System of Suspension Bridge

Note:

Dimensions A and E in the drawing are determined by the structure of the connected parts.
Dimension L1 is determined by the required adjustment range of the suspender.

Technical Parameter Table of Suspender Cable Structure

(Matched with Cold-Cast Anchors for Steel Wires with Diameter Φ5 and Tensile Strength σb=1670MPa)

Specification of Suspender Anchorages	Breaking Forc（KN）	Design Cable Force K=3（KN）	B	C（min）	F（min）	G（min）	L2
LZM5-37	1213	404	40	65	65	160	120
LZM5-55	1803	601	48	80	75	190	135
LZM5-61	2000	667	50	90	80	200	140
LZM5-73	2394	798	53	100	85	215	185
LZM5-85	2787	929	58	115	90	235	195
LZM5-91	2984	995	60	120	95	245	200
LZM5-109	3574	1191	63	135	100	255	215
LZM5-121	3968	1323	65	150	105	265	230
LZM5-127	4164	1388	68	155	110	280	265
LZM5-139	4558	1519	70	165	115	290	275
LZM5-151	4951	1650	73	180	120	300	285

Technical Parameter Table of Suspender Cable Structure

(Matched with Cold-Cast Anchors and Hot-Cast Anchors for Steel Wires with Diameter Φ7 and Tensile Strength σb=1670MPa)

Specification of Suspender Anchorages	Breaking Force （KN）	Design Cable Force K=3（KN）	B	C（min）	F（min）	G（min）	L2
LZM7-37	2378	793	35	100	85	180	140
LZM7-55	3535	1178	40	115	100	210	150
LZM7-61	3920	1307	42.5	120	105	220	150
LZM7-73	4692	1564	45	130	115	240	190
LZM7-85	5463	1821	50	140	125	260	195
LZM7-91	5848	1949	50	145	125	265	195
LZM7-109	7005	2335	55	160	140	295	230

Suspender System of Suspension Bridge

Main Technical Parameter Table of Lower End of Bearing-Type Suspender for Anchor Head

(Matched with cold-cast anchors for steel wires with diameter Φ5 and σb=1670MPa)

Suspender Anchor Specification	Breaking Force（KN）	Design Cable Force K=3（KN）	Embedded Pipe D1xt1	Anchor Plate E1xE1xt3	Protective Cover B1xh1
LZM5-37	1213	404	Φ159x7	260x260x30	Φ216x290
LZM5-55	1803	601	Φ168x6	270x270x30	Φ226x305
LZM5-61	2000	667	Φ168x6	270x270x30	Φ226x305
LZM5-73	2394	798	Φ194x9	290x290x30	Φ246x335
LZM5-85	2787	929	Φ194x5	305x305x30	Φ256x365
LZM5-91	2984	995	Φ194x5	305x305x30	Φ256x365
LZM5-109	3574	1191	Φ194x5	315x315x30	Φ260x385
LZM5-121	3968	1323	Φ219x10	325x325x30	Φ270x400
LZM5-127	4164	1388	Φ219x10	325x325x30	Φ270x410
LZM5-139	4558	1519	Φ219x6	350x350x35	Φ285x410
LZM5-151	1951	1650	Φ219x6	355x355x35	Φ290x425

Main Technical Parameter Table of Lower End of Bearing-Type Suspender for Anchor Head

(Matched with cold-cast anchors for steel wires with diameter Φ7 and σb=1670MPa)

Suspender Anchor Specification	Breaking Force（KN）	Design Cable Force K=3（KN）	Embedded Pipe D1xt1	Anchor Plate E1xE1xt3	Protective Cover B1xh1
LZM7-37	2378	793	Φ180x8	290x290x30	Φ246x290
LZM7-55	3535	1178	Φ194x5	320x320x30	Φ266x350
LZM7-61	3920	1307	Φ203x6	330x330x30	Φ276x370
LZM7-73	4692	1564	Φ219x7.5	360x360x35	Φ306x410
LZM7-85	5463	1821	Φ219x7.5	370x370x40	Φ316x410
LZM7-91	5848	1949	Φ245x12	390x390x40	Φ316x430
LZM7-109	7005	2335	Φ273x15	420x420x40	Φ336x460

Note:

1. Dimensions A and E in the drawing are determined by the structure of the connected parts.

2. Dimension L2 is determined by the required adjustment range of the suspender.

Structure Drawing of LZM Cold-Cast Anchor

Suspender System of Suspension Bridge

Note:

1. The hole in the center of the anchor plate shall have the same inner diameter as the embedded pipe.

2. When calculating the anchorage length of the suspender, take the center line of the upper fork lug pin shaft as the reference.

3. When calculating the anchorage length of the cable, take the nut at a position of (L1-H2)/2 from the inner end face as the reference.

Main Parameter Table of LZM Cold-Cast Anchor (Matched with Steel Wire Diameter Φ5)

Anchor Type	T1	T2	D	L1	H1	H2	H3
LZM5-37	Tr130x6	Tr90x6	Φ180	245	60	65	110
LZM5-55	Tr140x6	Tr110x6	Φ190	260	80	70	130
LZM5-61	Tr140x6	Tr110x6	Φ190	260	80	70	130
LZM5-73	Tr160x8	Tr120x8	Φ210	290	100	90	150
LZM5-85	Tr170x8	Tr120x8	Φ220	305	100	90	150
LZM5-91	Tr170x8	Tr130x8	Φ220	320	100	90	150
LZM5-109	Tr175x8	Tr135x8	Φ225	340	100	80	150
LZM5-121	Tr185x8	Tr140x8	Φ235	355	110	90	160
LZM5-127	Tr185x8	Tr140x8	Φ235	365	110	100	160
LZM5-139	Tr195x8	Tr145x8	Φ250	365	110	100	170
LZM5-151	Tr200x8	Tr150x8	Φ255	380	110	100	170

Main Parameter Table of LZM Cold-Cast Anchor (Matched with Steel Wire Diameter Φ7)

Anchor Type	T1	T2	D	L1	H1	H2	H3
LZM7-37	Tr150x6	Tr120x6	Φ210	265	90	75	140
LZM7-55	Tr170x6	Tr110x6	Φ230	315	90	70	140
LZM7-61	Tr180x8	Tr140x6	Φ240	330	90	85	140
LZM7-73	Tr190x8	Tr155x8	Φ260	370	110	78	160
LZM7-85	Tr190x8	Tr155x8	Φ270	380	110	88	170
LZM7-91	Tr200x8	Tr165x8	Φ270	395	110	90	170
LZM7-109	Tr220x8	Tr180x6	Φ290	425	130	99	190

PACKAGE

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: Suspender System of Suspension Bridge, Suspension Bridge System, prestressed suspension bridges, prestressed suspension cable, Suspension Bridge Cable body, Suspension Bridge Cable suspender