In the forefront exploration of civil engineering, hydraulic engineering, and structural mechanics, theoretical calculations alone are far from sufficient to cope with complex real-world conditions. The ultimate bearing capacity and deformation characteristics of large concrete test blocks, small beam column structures, and various node specimens must be verified through high-precision physical experiments.
The multifunctional reaction force loading system is designed specifically for structural mechanics testing, providing accurate and stable reaction force loading for various components. It simulates complex load conditions in practical engineering such as earthquakes, strong winds, and heavy loads, comprehensively detects the bearing capacity, deformation characteristics, and failure modes of components, and provides real and reliable data support for scientific research and teaching.
Application Scenario:
1. Concrete mechanical performance testing: Conduct axial compressive and splitting tensile tests on standard cubic and prismatic test blocks to determine ultimate strength.
2. Small beam/column structure test: Conduct bending and shear performance tests on simply supported beams, cantilever beams, and short columns, and study their crack propagation and failure modes.
3. Node specimen research: Test the hysteresis performance and energy dissipation capacity of beam column joints in steel or concrete structures under low cycle reciprocating loads.
4. Pseudo static and pseudo dynamic tests: Equipped with actuators and control systems, simulate the stress process of the structure under earthquake action.
Technical advantages:
1. High stiffness reaction platform ensures safe extreme testing
The equipment adopts a high stiffness self reflection structure design, which does not require complex anchoring connections with the laboratory floor, making it easy to install and flexible to move. The overall rack has been optimized through finite element analysis, with minimal deformation when subjected to ultimate loads, ensuring the accuracy of test data and effectively safeguarding the safety of laboratory and operators.
2. Fully digital closed-loop control, leading in loading accuracy
Equipped with a fully digital multi-channel closed-loop measurement and control system independently developed by Xinguang, it supports three modes: load control, displacement control, and deformation control, and can achieve smooth and impact free switching. It can achieve various test waveforms such as constant velocity loading, constant displacement, and constant load holding, with loading rate control accuracy better than ± 1%.
3. Multi functional attachment loading, one machine with multiple uses
By quickly replacing different loading fixtures and accessories, a single system can complete various mechanical tests such as compression, shear, bending, and local compression, greatly improving equipment utilization efficiency and saving laboratory space and procurement costs.
4. Intelligent security monitoring system
Configure multiple safety protection mechanisms: test force overload protection, travel limit protection, hydraulic system overpressure/overheating protection, emergency stop button, etc. Real time dynamic display of load, displacement, deformation and other data during the experimental process ensures the controllability and traceability of the scientific research experimental process.
Applicable standards:
The equipment design and calibration fully comply with the following national standards:
-GB/T50081 "Test Methods for Physical and Mechanical Properties of Concrete"
-GB/T2611 General Technical Requirements for Testing Machines
-JJG139 "Verification Regulations for Tensile, Pressure and Universal Testing Machines"
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