80-400mm Movement Steel Finger/ Comb Type Expansion Joint for Bridge

• Customization: Available
• After-sales Service: Online Technical Guidance
• Warranty: 1-3 Years
• Model NO.: SZSC80-400mm
• Certification: GB
• Function: Sound Insulation, Drainage, Protect, Support
• Position: Upper Structure
• Type: Expansion Device
• Main Material: Steel
• Rubber Seal: Cr
• Application: Steel Bridge, Reinforced Concrete Bridge
• Shape: Finger Type, Comb Type
• Transport Package: in Loose or as Required
• Specification: 80-400mm or As Customized
• Trademark: SZ
• Origin: China
• HS Code: 7308900000
• Production Capacity: 50000 Length/ Year

Product Description

Product Description

Finger expansion joints are designed to handle movements of 80 mm to 1,200 mm are composed by steel finger plates, CR sheet, anchor bolts and other components. The rubber sheet is placed on the retractable steel, and anchor bolts help to fix the whole structure. The orientation of the fingers is in the direction of vehicle travel, which can reduce noise and improve driver's comfort. There is a drainage channel which allows rainwater to enter the bridge's drainage system, hanging beneath the joint.


Features

• Simple structure & low height.
• Minimize noise and vibration.
• Maximize vehicle's driving smoothness.
• Anti-skidding.
• Be highly water-resistant (Equipped with waterproof device).
• Low cost & high cost effectiveness.
• Widespread used.
• Easy to install.
• 

  

  

                                                                                Specification of Finger Expansion Joints

Type	Movements (mm)	Thickness (mm)	Anchor bolt	Width (mm)	Height (mm)	Height of set layer (mm)
80	80	28	M18 × 180	750	33	≥ 120
100	100	28	M18 × 180	790	33	≥ 120
120	120	30	M18 × 180	830	35	≥ 120
140	140	30	M18 × 180	870	35	≥ 120
160	160	30	M20 × 200	940	35	≥ 130
180	180	32	M20 × 200	980	37	≥ 130
200	200	32	M20 × 200	1020	37	≥ 130
220	220	32	M20 × 200	1040	37	≥ 130
240	240	34	M20 × 200	1060	39	≥ 150
260	260	34	M20 × 200	1120	39	≥ 150
280	280	34	M20 × 200	1170	39	≥ 150
300	300	34	M20 × 200	1270	39	≥ 150
320	320	36	M24 × 240	1290	41	≥ 150
340	340	36	M24 × 240	1350	41	≥ 150
360	360	36	M24 × 240	1410	41	≥ 150
400	400	36	M24 × 240	1470	41	≥ 150

Application

Finger expansion joints are suitable for both new bridges and existing bridges. They are also good choices for the large-span bridges and do well in replacing the old ones. Finger expansion joints are widely used among steel box girders, among concrete beams, and between steel box girders and concrete beams. Finger expansion joints also can be used in expressway.

Please send your drawings and requirements to customize.