Steel Plate Finger Joint Bridge Expansion Device for Large-Span Bridge Construction Project

• Customization: Available
• After-sales Service: Installation Guide
• Warranty: 2years
• Model NO.: JT05
• Certification: CE/ISO
• Position: Upper Structure
• Type: Telescopic Device
• Special Service: Custom Service Offered
• Movement: 80-400mm or Customized
• Surface Treatment: Galvanized
• Standard: GB
• Forming: Cold Drawn Steel
• Connection Form: Welded Connection
• Member: Steeltruss
• Type of Steel for Building Structure: Fire-Resistent Steel
• Application: Steel Workshop, Steel Structure Platform
• Residential Wall Structure: Briger
• Carbon Structural Steel: Q355
• Transport Package: Pallet
• Specification: Size: Various
• Trademark: HengJingGong
• Origin: China
• HS Code: 7308900000
• Production Capacity: 5000meter/Month
• Package Size: 100.00cm * 50.00cm * 5.00cm
• Package Gross Weight: 20.000kg

Product Description

Product Description

Finger plate expansion joint is a classic yet efficient bridge expansion device that achieves bridge expansion function through the unique structure of interlocking finger-shaped steel plate modules. This ingeniously designed expansion joint device uses cantilevered steel finger strips as the main load-bearing and force-transfer components, with precise gaps maintained between each finger to accommodate longitudinal displacement of the bridge structure. 

The overall structure of the finger plate expansion joint is firmly connected to the bridge girder and abutment through a high-strength anchoring system, effectively transferring vehicle loads to the main bridge structure while ensuring geometric stability of the expansion joint itself during repeated expansion movements. The finger-shaped structure not only endows the finger plate expansion joint with large expansion travel capacity but also ensures smooth transition of vehicle tires when passing, virtually eliminating the common vehicle jolting phenomenon associated with traditional expansion joints.

Features
    *The finger-shaped structure of finger plate expansion joint forms a continuous supporting surface, enabling smooth and comfortable vehicle passage with significantly better driving comfort than other expansion joint types.
    *Finger plate expansion joint features large expansion range, with a single joint capable of meeting bridge expansion needs caused by seasonal temperature differences, reducing multiple joint installations.
    *Finger plate expansion joint adopts all-steel structure with excellent compression, shear, and fatigue resistance, featuring long service life and outstanding durability.
    *The drainage system of finger plate expansion joint is scientifically designed with drainage channels between finger strips, capable of quickly removing water to prevent freezing and corrosion.
    *The anchoring system of finger plate expansion joint adopts dual insurance of bolt connection and welding, firmly bonded with concrete and demonstrating strong pullout resistance.

Specification

Model	Movement (mm)	Module length (mm)	Module depth (mm)	Weight (kg/m)
30	± 15	2000	33	18
50	± 25	2000	43	25
80	± 40	2000	46	34
100	± 50	2000	54	45
160	± 80	2000	84	88
200	± 100	2000	71	135
330	± 165	1000	100	280

Detailed picture

Packaging & Shipping

Company Profile

    Hengshui Jingtong Rubber Co., Ltd., located in Hebei Province's Hengshui City, is a professional manufacturer of engineering rubber products. Our product range includes bridge bearings, expansion joints, water stop strips, water stop belts, inflatable cores, building deformation joint device and water plugs, which are widely used in bridge, tunnel, water conservancy, and power engineering projects.  The company boasts advanced technology and mature processes to ensure reliable product quality.

    We have a professional technical team and a comprehensive after-sales service system to ensure customers receive high-cost-performance products and attentive service. Hengshui Jingtong Rubber Co., Ltd. is committed to continuous innovation to meet market demands and looks forward to esta  blishing long-term cooperative relationships with customers from both domestic and international markets.