Laboratory test system for displacement capacity and durability of bridge expansion joints, with fixed/movable beams and actuator control.
Overview
The bridge expansion joint testing apparatus is a laboratory test system for evaluating the displacement capacity, durability and mechanical performance of bridge expansion joints. It applies controlled longitudinal movement to the joint specimen to simulate the expansion and contraction of the bridge deck caused by temperature changes and traffic loads, and records force and displacement throughout the test.
Applications
• Bridge load testing and acceptance inspection
• Long-term structural health monitoring of highway and railway bridges
• Bridge safety assessment after natural disasters or overloading
• Research and educational laboratories
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specifications |
| Maximum Vertical Test Force | 2×300 kN |
| Maximum Longitudinal Tension-compression Test Force | 2×100 kN |
| Test Force Accuracy | ±1% |
| Vertical Displacement Test Stroke | 0–250 mm |
| Longitudinal Displacement Test Stroke | 0–250 mm |
| Lateral Displacement Test Stroke | 0–250 mm |
| Displacement Measurement Accuracy | ±0.5% |
| Displacement Mode | Unidirectional |
| Max Length of Telescopic Device | 6,500 mm |
| Max Telescopic Stroke of Telescopic Device | 1,000 mm |
| Support Spacing of Telescopic Device | Electrically adjustable 800–1,800 mm |
| Main Motor Power | 6 kW |
| Rated Working Pressure of Hydraulic System | 20 MPa |
| Overall Dimension (L×W×H) | 6,200 × 5,500 × 2,200 mm |
Standards
GB/T 13978, JTG/T J21, ASTM E4
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the Bridge Expansion Joint Testing Apparatus comply with?
A1: The Bridge Expansion Joint Testing Apparatus is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the Bridge Expansion Joint Testing Apparatus be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
Overview
The bridge expansion joint testing apparatus is a laboratory test system for evaluating the displacement capacity, durability and mechanical performance of bridge expansion joints. It applies controlled longitudinal movement to the joint specimen to simulate the expansion and contraction of the bridge deck caused by temperature changes and traffic loads, and records force and displacement throughout the test.
Applications
• Bridge load testing and acceptance inspection
• Long-term structural health monitoring of highway and railway bridges
• Bridge safety assessment after natural disasters or overloading
• Research and educational laboratories
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specifications |
| Maximum Vertical Test Force | 2×300 kN |
| Maximum Longitudinal Tension-compression Test Force | 2×100 kN |
| Test Force Accuracy | ±1% |
| Vertical Displacement Test Stroke | 0–250 mm |
| Longitudinal Displacement Test Stroke | 0–250 mm |
| Lateral Displacement Test Stroke | 0–250 mm |
| Displacement Measurement Accuracy | ±0.5% |
| Displacement Mode | Unidirectional |
| Max Length of Telescopic Device | 6,500 mm |
| Max Telescopic Stroke of Telescopic Device | 1,000 mm |
| Support Spacing of Telescopic Device | Electrically adjustable 800–1,800 mm |
| Main Motor Power | 6 kW |
| Rated Working Pressure of Hydraulic System | 20 MPa |
| Overall Dimension (L×W×H) | 6,200 × 5,500 × 2,200 mm |
Standards
GB/T 13978, JTG/T J21, ASTM E4
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the Bridge Expansion Joint Testing Apparatus comply with?
A1: The Bridge Expansion Joint Testing Apparatus is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the Bridge Expansion Joint Testing Apparatus be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
