D160 Expansion Joint Price 160 Type Bridge Expansion Joint Product + Installation Contact Me

160 Type Expansion Joint Introduction and Installation Guide

160 Type Expansion Joint is a commonly used expansion device in highway and bridge engineering, primarily designed to accommodate longitudinal displacement (maximum expansion capacity up to 160mm) caused by temperature changes, concrete shrinkage and creep, vehicle loads, etc., in bridges or road surfaces.

1. Overview of 160 Type Expansion Joint

• Model Meaning : The number "160" indicates that the maximum expansion capacity of this expansion joint is ±80mm (total expansion capacity 160mm) .
• Applicable Displacement Range : Typically 0~160mm , suitable for small to medium-sized bridges or high-grade highways.
• Structural Type : Common types include modular expansion joints or finger plate expansion joints .
• Main Materials :
  • Steel Section (Q345B or higher strength steel)
  • Rubber Sealing Strip (aging-resistant, high and low temperature resistant)
  • Anchor Reinforcement (HRB400 grade)
  • High-Strength Concrete (C50 and above)

2. Main Features of 160 Type Expansion Joint

? Excellent Expansion Performance : Adapts to thermal expansion and contraction of bridges, D160 Expansion Joint Price 160 Type Bridge Expansion Joint Product + Installation Contact Meconcrete shrinkage and creep, and other deformations.

? High Durability : Uses high-quality steel and rubber, resistant to fatigue and corrosion.
? Smooth Driving : Flat surface reduces vehicle impact noise.
? Water and Dust Proof : Rubber strip effectively prevents rainwater and debris from entering the beam end gap.

3. Installation Steps for 160 Type Expansion Joint

(1) Pre-Construction Preparation

• Check Beam End Gap : Ensure the reserved slot width meets design requirements (typically ≥160mm).
• Clean the Slot : Remove loose concrete, eliminate rebar corrosion, and ensure good bonding between new and old concrete.
• Measure and Position : Mark the centerline and installation height of the expansion joint according to the design drawings.

(2) Placement and Adjustment of Expansion Joint

• Place the expansion joint device into the reserved slot, adjust elevation, centerline, and flatness , D160 Expansion Joint Price 160 Type Bridge Expansion Joint Product + Installation Contact Meensuring a smooth transition with the road surface.
• Use temporary supports for fixation to prevent displacement during concrete pouring.

(3) Welding Anchor Reinforcement

• Weld the anchor reinforcement of the expansion joint to the embedded rebar (using double-sided welding, weld length ≥5d ).
• Inspect welding quality to ensure no false welding or missed welding.

(4) Pouring Concrete

• Use C50 steel fiber concrete or epoxy resin concrete to improve impact resistance.
• Compact thoroughly to ensure no voids, and level the surface.

(5) Installing Rubber Sealing Strip

• After the concrete strength reaches 80% or more , install the rubber waterstop to ensure sealing.

(6) Curing and Opening to Traffic

• Wet curing for ≥7 days (or use curing agents).
• **Traffic can be opened only after concrete strength reaches 100%** (typically requiring 14 days).

4. Installation Precautions

? Strictly Control Installation Temperature : It is recommended to construct at 10~25℃ , D160 Expansion Joint Price 160 Type Bridge Expansion Joint Product + Installation Contact Meto avoid affecting the performance of the expansion joint due to temperature.

? Ensure Smooth Transition Between Expansion Joint and Bridge Deck : Height difference ≤2mm to prevent vehicle bouncing.
? Check the Sealing of Rubber Strip : Prevent water seepage leading to beam end corrosion.
? Prohibit Vehicles from Driving on Unset Concrete : Avoid structural damage.

5. Common Issues and Handling