With the rapid development of large-span bridges, high-speed railways, and urban elevated roads in China, bridge bearings, as the core components connecting bridge piers and beams, directly determine the seismic resistance and service life of the entire bridge based on their mechanical properties. Faced with the testing needs of ultra large tonnage bowl bearings, spherical bearings, and building isolation rubber bearings, traditional testing equipment faces severe challenges in terms of loading stability and data collaboration. Jinan Xinguang Testing Machine Manufacturing Co., Ltd. microcomputer controlled electro-hydraulic servo compression shear testing machine provides strong data guarantee for bridge engineering safety.
1. Ultra large tonnage, ultimate bearing capacity verification
The equipment comprehensively covers the testing requirements for ultimate compressive strength and vertical bearing capacity of plate bearings for highways and railway bridges, as well as ultra large bowl bearings and spherical bearings. The host adopts a four column frame structure, and the crossbeam and base are made of integral cast steel technology, ensuring high frame rigidity and stability even under a load of 20000 tons.
2. Multi channel collaboration, fully closed-loop intelligent control
The machine adopts a multi-channel fully digital coordinated loading control system, supporting multiple control methods such as constant stress and constant displacement, and the control methods can be smoothly switched during the test process. Whether it is vertical compression test, horizontal shear test or corner test, the system can achieve precise collaborative loading, ensuring that the test data truly reflects the mechanical response of the support under complex stress states.
3.100% data automation to eliminate manual errors
The equipment is equipped with high-precision load sensors and multi-channel displacement sensors, and all deformation data is automatically collected without the need for manual readings. The entire process from loading and holding to data recording and curve drawing is automatically completed by the computer. During the experimental process, real-time dynamic display of load, displacement, deformation and other data allows a single operator to easily complete the complex detection process of large supports, greatly reducing human reading errors and labor intensity.
4. High precision load holding to meet long-term stability testing requirements
In response to the testing requirements for bearing friction coefficient and creep performance, this machine has the ability to hold the load for up to 8 hours, with a smooth and vibration free loading process. The speed can be infinitely adjusted within a certain range, making it particularly suitable for scientific research and type testing that require long-term observation of deformation trends.
5. Flexible space adaptation to meet the testing needs of oversized components
The size of the upper and lower pressure plates reaches 1200 × 1200mm, with a vertical spacing of 1800mm (customizable), which can easily accommodate large supports and various structural components. Whether conducting shear aging tests on plate supports or radial deformation testing on pot supports, there is no need to worry about insufficient clamping space.
Applicable standards and typical applications
The Xin Guang compression shear testing machine is designed strictly according to multiple national and industry standards, fully complying with the requirements of JB/T11582 "Compression Shear Testing Machine", GB/T2611 "General Technical Requirements for Testing Machines", JT/T4 "Plate Rubber Bearings for Highway Bridges", JT/T391 "Pot type Bearings for Highway Bridges", GB/T17955 "Technical Conditions for Spherical Bearings", as well as relevant standards for railway bridge bearings (TB/T1893, TB/T2331, TB/T3320).
The equipment is specifically designed to test the mechanical properties of the following products:
-Plate rubber bearings: compressive/shear elastic modulus, shear adhesion performance, shear aging resistance, friction coefficient, allowable turning angle, ultimate compressive strength;
-Basin type rubber bearings: vertical bearing capacity, friction coefficient, rotation test;
-Spherical steel bearings: determination of vertical bearing capacity, friction coefficient, and rotational torque;
-Building isolation rubber bearings: ultimate deformation and damping performance testing.
This equipment is widely used in the central laboratories of national engineering quality inspection centers, large bridge component production enterprises, research institutes, and high-speed railway construction units, and is the preferred testing platform to ensure the safety of major engineering structures.
About Xinguang:
Jinan Xinguang Testing Machine Manufacturing Co., Ltd. was established in 2002 and is a national high-tech enterprise specializing in the research and development, manufacturing, and sales of mechanical testing instruments. The registered capital is 100 million yuan, the company has more than 120 employees, a building area of about 16000 square meters, and 151 sets of various large-scale CNC machining centers and specialized machine tools, with a processing and production capacity ranking among the top in the industry.
The company's main products cover a full range of categories, including electronic universal testing machines, hydraulic universal testing machines, electro-hydraulic servo fatigue testing machines, electromagnetic high-frequency fatigue testing machines, compression shear testing machines, static load anchoring testing machines, steel strand testing machines, relaxation testing machines, manhole cover testing machines, steel bar bending testing machines, horizontal tensile testing machines, torsion testing machines, ring stiffness testing machines, etc., and are exported to international markets such as North America, Europe, the Middle East, Southeast Asia, and South Korea.
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