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Expansion Joints For Bridge

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Expansion Joints For Bridge Specification

Material Grade
ASTM A36/A572 Steel, Premium Grade Rubber

Thickness
50mm - 150mm

Machines Type
Installation Machine Compatible

Application
Bridge Decks

Load Capacity
Designed for heavy vehicular load (up to 5000 kN)

Form
Pre-fabricated Modular Strip

Color
Black/Grey (Standard)

Installation Type
Precast/Fitted Onsite

Usage
Bridge Gap Closure and Expansion Movement

Features
Fatigue Resistant, High Flexibility, Low Maintenance

Purity
99% Pure Rubber Compound

Product Type
Expansion Joint For Bridge

Main Material
High Strength Steel and Elastomeric Rubber

Surface Treatment
Galvanized/Anti-Corrosive Coating

Size
Custom as per Bridge Design (generally 500mm to 2000mm length)

Weight
Varies as per size (approx. 50-300 kg per unit)

Feature
Waterproof, Flexible, Durable, Weather Resistant

Shape
Rectangular with Slotted or Modular Profile

End Treatment
Beveled for seamless integration

Joint Type
Finger, Modular or Strip Seal available

Minimum Expansion
From 10mm

Waterproofing Level
IP68 equivalent on joint seal

Movement Range
Up to ±80mm depending on model

Packaging Type
Wooden/Palletized as per requirement

Fire Resistance
Meets EN 13501-1 for fire classification

Temperature Resistance
-30°C to +70°C

Noise Control
Inbuilt noise dampening feature

Maintenance Method
Accessible for visual inspection and routine cleaning

Maximum Expansion
Up to 100mm

Installation Accessories
Includes anchor bolts, joint sealer

Durability
Rated over 25 years service life

UV Resistance
Excellent (UV stabilized rubber and coating)

Impact Strength
High, engineered for dynamic vehicular impact

About Expansion Joints For Bridge

Product Features

We are producing various type of Expansion Joint for bridges and they are installing on RC bridge, PC bridge, Steel bridge, and Standard straight bridge, Curved bridge, Skew bridge, and for Carriage way, Sidewalks, Median, Boundary, Protection wall, etc. as below.

1. Steel type Expansion Joint
1) M/C Steel Joint : Vulcanized type for Small span bridge, Transverse type
Model No. : M/C #35, 50, 80, 100
2) New Ultra Mocell Joint(T) : Assembly type for small span bridge, Transverse type
Model No. : NUM #35T, 50T, 80T, 100T
3) New Ultra Mocell Joint(L) : Assembly type for Expansion bridge, Longitudinal type
Model No. : NUM #30L, 50L, 80L
4) New Wave Finger Joint : Vulcanized type for Medium and Long Span bridge, Transverse type

Model No. : NWJ #50A, 80A, 120A, 160A

5) New Ultra Finger Joint : Assembly type for Medium and Long Span bridge, Transverse type

Model No. : NUF #50, 80, 100, 120, 160
6) New Wave Finger Joint : Assembly type for Long Span bridge, Transverse type

Model No. : NWJ #200CF, 250CF~1050CF
7) BWP Joint : Assembly type for Boundary, Walkway, and Protection Wall
Model No : BWP #30~100, 120~160, 200

2. Rubber type Expansion Joint
: TF Joint, Monocell Joint, NB Joint, GaiTop Joint

Product Use

1. Using for absorbing and buffering the expansion & contraction, displacement, etc. of bridges due to temperature changes, dry shrinkage, concrete creep, dead loads, live loads, wind loads, etc.
2. It is installed in the grooves between Superstructures on the bridges.

Our Company

MP Tech Corporation

"Quality First and Customer Satisfaction" are our top priorities.

MP Tech Corp. was firstly established in 1970 which has developed and produced industrial special rubber products, and with long experiences, skillfulness of know-how, and technologies, secondly established in 2000 and has gradually added products of Bridge items, Road items, Building items, River and Marine items, like Expansion Joints for bridges, Bridge Support Bearings, Balustrades on bridges, Post-tension anchorage system, Suicide prevention barrier on bridge, Noise Barrier, Solar LED Road Safety products and Solar Street light, Security CCTV system, Marine Rubber Fender, Eco-friendly PE Fiber Stone Gabion Mesh Bag, and New Renewable Energy system and Plant, etc.

And we have acquired ISO9001, KS Certificate, Certificate of Reliability, CE Certificate, Various technologies of 125 patents, etc., and have been approved as a company-affiliated technology research institute, G-Pass Certified company, certificates of origin certified exporter, UN procurement registrar, and US SAM registrar and Construction licenses, etc.

With long experience and accumulated technical know-how, we will improve technology more higher in bridge structures, building structures, roads, and river and ocean civil engineering, etc.

We will do our best to develop new technologies and methods as well as develop effective products.

Remark

The price differs depending on the size or model, so please inquire for more detailed prices.

Advanced Movement Accommodation

These bridge expansion joints are crafted to offer a movement range of up to 80mm (with certain models reaching 100mm maximum expansion). Their adaptable design ensures seamless integration into various bridge structures and allows effective management of thermal fluctuations, structural shifts, and dynamic traffic loads.

Superior Durability and Resistance

With over 25 years of rated service life, each joint is engineered using ASTM A36/A572 steel and premium-grade rubber. The inbuilt features provide high impact strength, outstanding waterproofing (IP68 on seals), excellent fire resistance, and enduring UV stability-all vital for challenging bridge environments.

Efficient Installation and Easy Maintenance

Supplied with compatible anchor bolts and joint sealers, installation of these expansion joints can be completed onsite or with precast methods. Routine maintenance is straightforward, including visual inspections and regular cleaning, ensuring optimal long-term performance even under heavy vehicular loads.

FAQ's of Expansion Joints For Bridge:

Q: How are these expansion joints installed on bridge decks?

A: These joints can be installed either by precast methods or fitted onsite using the provided anchor bolts and joint sealers. Their rectangular, modular design supports compatibility with installation machines, making the process efficient and minimizing bridge downtime.

Q: What movement range do the expansion joints accommodate?

A: Depending on the model, the expansion joints manage movement between 10mm and 100mm, with standard capabilities up to 80mm. This flexibility ensures that both minor and significant bridge expansions are effectively covered.

Q: When is routine maintenance required for these joints?

A: Routine maintenance, such as visual inspections and cleaning, is typically performed at scheduled intervals, based on traffic volume and environmental conditions. The joints are designed for easy access, enabling swift assessments and upkeep to maximize service life.

Q: Where are these expansion joints most commonly used?

A: They are predominantly utilized in bridge decks to close structural gaps and accommodate expansion/contraction due to thermal, dynamic, or settlement movements. Their robust features make them suitable for diverse bridge environments across Korea South and international markets.

Q: What benefits does the waterproofing feature provide for bridges?

A: The IP68-equivalent waterproof joint seal offers exceptional resistance against water ingress, preventing corrosion and minimizing maintenance. This protection ensures long-term durability and the structural integrity of the bridge under various weather conditions.

Q: How does inbuilt noise control improve bridge performance?

A: Integrated noise dampening materials reduce the sound generated as vehicles traverse the joints. This feature contributes to a quieter bridge environment and enhances user comfort, especially in urban and residential locations.

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