High Damping Hdr Construction Seismic Isolation Bridge Bearing Elastomeric Rubber Bearing Pads Base Isolation Bearing for Earthquake Seismic System

• Customization: Available
• After-sales Service: 24 Hours-7 Days-Available
• Warranty: 10years
• Model NO.: JT-SIBP-01
• Certification: DIN, GB, BS, ASTM, CE, ISO
• Usage: Beam Bridge, Highway Bridge, Railroad Bridge, Building Base Structure
• Structure: Laminated Rubber Bearing
• Material: Rubber and Steel
• Activity: Fixed Bearing
• Name: Base Isolation Bearing for Earthquake Seimisic
• Leading Time: 15days
• Top Plate Shape: Square/Circle
• Print Stanard: ISO Print Standard
• Steel Plate Thickness: 22-25mm
• Customized: Customized
• The 1st Shape Factor: Designable
• Transport Package: Palllet by PE Film
• Specification: LRB 400/450/500/550/600/650/700750/800/900/1000
• Trademark: HengJingGong
• Origin: China
• HS Code: 40169990
• Production Capacity: 10000 PCS Per Year
• Package Size: 35.00cm * 35.00cm * 15.00cm
• Package Gross Weight: 60.000kg

Product Description

Product Description

    The Seismic Isolation Rubber Bearing is an advanced structural component widely used in buildings and bridges to mitigate the destructive effects of earthquakes, strong winds, and other dynamic loads on structures. This product is manufactured by alternately laminating thin steel plates and rubber layers, bonded together through high-temperature and high-pressure vulcanization. Its core principle is to effectively dissipate seismic energy by extending the structure's natural vibration period and increasing damping, thereby significantly reducing the seismic force transferred to the upper structure (isolating approximately 80% of the seismic force). This greatly enhances the structural seismic performance, protecting buildings and ensuring human safety.

Feature

*Excellent horizontal displacement. absorb shock energy effecively.
*Excellent reset structure. there is no residual displacement.
*High damping material. 10% to 18% damping capacity for shock absorption.
*Wide range structure for different environments and displacement requirements.
*Economical and high performance for lower total construction budget.
*Easy installation and replacement for lower maintenance cost.

*High Damping Performance: HDR and LRB bearings can achieve an equivalent damping ratio of 10% to 20% or higher, offering remarkable energy dissipation.

Function

*Effective Seismic Isolation: Extends the structural period to avoid the predominant seismic period, significantly reducing the seismic response of the upper structure.
*Energy Absorption: Efficiently dissipates seismic energy through hysteretic deformation (plastic deformation of the lead core or internal friction of high-damping rubber).
*Load Support: Provides high vertical load-bearing capacity and stiffness to stably support the weight of the upper structure.
*Displacement Adaptation: Allows significant horizontal shear deformation to accommodate movements caused by temperature changes, shrinkage, and other factors.

Process
    *Rubber Mixing: Specific rubber formulations are mixed in an internal mixer to create compounded rubber.
    *Steel Plate Treatment: Thin steel plates undergo surface treatment (e.g., phosphating, sandblasting) and are coated with specialized adhesives.
    *Lamination and Vulcanization: Rubber sheets and treated steel plates are alternately layered and vulcanized under high temperature and pressure to ensure strong interlayer bonding. For LRB bearings, this process includes the insertion of the lead core.

HDR (Ⅰ) rubber bearing.

HDR (Ⅱ) rubber bearing.

Advantages

    *Exceptional Seismic Safety: Improves the seismic performance of buildings by 8 to 10 times compared to traditional structures, ensuring the safety of lives and property.
    *Cost-Effectiveness: Reduces the construction cost of the upper structure and features a maintenance-free or low-maintenance design, resulting in lower lifecycle costs.
    *Proven Reliability: The effectiveness and reliability of seismic isolation rubber bearings have been demonstrated in actual earthquakes worldwide.
    *Relatively Easy Installation: The mature product design facilitates straightforward on-site installation and construction.
    *Eco-Friendly Options: HDR bearings, which are lead-free, align with green building and sustainable development requirements.

Specification

Parameter Name	Unit	Specification Range
Damping Ratio	%	≥12
Load Capacity	kN	As per design requirement
Vertical Stiffness	kN/m	As per design requirement
Horizontal Stiffness	kN/m	As per design requirement
Vertical Compression Deformation	mm	≤10
Horizontal Deformation	mm	≤30
Durability	-	Fatigue life over 20 million cycles
Temperature Range	℃	-40 to +70

Installation

Type

Product Details

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.

FAQ

1.When can I get the quotation?
A:We usually quote within 24 hours after we get your inquiry.

2.How long can I expect to get the sample?
A:The samples will be ready for delivery in 5-10days. The samples will be sent to you via express and arrive in 5-7days.

3.How long is the delivery time
A:Usually 10-15 days, depending on the quantity purchased.

4.How can I get a sample to check your quality?
A:After negotiating the price, we will provide you with samples for testing.

5.what can you buy from us?
Bridge Bearing Pad,Seismic isolation bearing,Expansion Joint,Rubber Inflatable Airbag,Waterstop Belt/Strip,Steel Expansion Joint,Butyl Tape

6.What's payment term?
A:T/T, L/C at sight, Western Union

7. Do we have quality guarantee?
Of Course!.
--from raw material to manufacturing, we have rigid quality control.
--before delivery, we have strict quality inspection.
--Third party inspection is also available at your request.
--We also have ISO, CE certificates.