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Finger Expansion Joints for Movements of 80 mm to 1200 mm
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.
The finger expansion joint is on the platform.
FEJ-1: Finger expansion joints
This is the drainage pipe of finger expansion joints.
FEJ-2: The rainwater can flow away through drainage pipe of finger expansion joint
Type
This is a finger expansion joint with sharp fingers.
FEJ-3: Finger expansion joint with sharp fingers
This is a finger expansion joints panel with rectangular fingers.
FEJ-4: Finger expansion joint with rectangular fingers
Note: Other types also can be customized.
Specification:
Table 1: 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
Note: Other specifications also can be customized.
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 use.
Easy to install.
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.
A worker is setting the finger expansion joint in the connection of bridges.
FEJ-5: The bridge is being built with finger expansion joints
A car is passing through the bridge that is connected with finger expansion joints.
FEJ-6: A bridge that has been built with finger expansion joints
The expressway is being built with finger expansion joints.
FEJ-7: Expressway is being built with finger expansion joints
A bicycle is passing through the expressway that is built with finger expansion joints.
FEJ-8: The expressway that has been built with finger expansion joints
A worker is setting the finger expansion joints in the end of bridge.
FEJ-9: Finger expansion joints are used in end of bridge
This is a bridge that is connected with finger expansion joints.
FEJ-10: Finger expansion joints are installed in connection of bridges
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