Testing device for detecting connection node of vertical web member and upper chord member of truss

By designing a test device for connecting nodes between the vertical abdominal rod and the upper chord rod of the truss, the performance of the truss under different stresses is simulated, the problem of incomplete detection results in the prior art is solved, and a more comprehensive detection effect is achieved.

CN120253520AActive Publication Date: 2025-07-04CHINA RAILWAY CONSTR GROUP CO LTD
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Patent Information

Application Number
CN202510733664.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-04
Publication Date
2025-07-04
Estimated Expiration
2045-06-04

AI Technical Summary

Technical Problem

The prior art cannot simulate different stress conditions for the chord and abdominal rod of truss, resulting in insufficient comprehensive detection results.

Method used

A test device for connecting nodes between the vertical truss truss chord rod and the upper chord rod is designed. Through components such as positioning seats, circumferential positioning members and force pedestal seats, it can simulate the torsion, synchronous pressure and separate force of the upper chord rod and the vertical chord rod, and use adjustable slide rails and hydraulic cylinders to achieve multi-directional force simulation.

Benefits of technology

Improve the comprehensiveness of the detection results and enable more accurate evaluation of the performance of the truss connecting nodes under different stress conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of building detection, and discloses a test device for detecting a connection node of a vertical web member and an upper chord of a truss, the test device comprises a positioning seat, the side of the positioning seat is provided with a pair of circumferential positioning pieces, and the circumferential positioning pieces can apply rotating force to the upper chord and the vertical web member; stress seats are arranged outside the two circumferential positioning pieces, a force applying seat is arranged between the stress seats, adjustable sliding rails are installed on the side edges of the stress seats, sliding seats are installed in the adjustable sliding rails in a sliding mode, and pressure applying assemblies are arranged on the adjustable sliding rails in the length direction of the adjustable sliding rails. According to the device, the circumferential positioning piece can apply rotating force in the circumferential direction to the upper chord and the vertical web member so as to simulate the stress conditions of the upper chord and the vertical web member in the torsion state, the force application seat can apply pressure to the upper chord and the vertical web member at the same time so as to simulate the stress conditions of the upper chord and the vertical web member under synchronous pressure, and the comprehensiveness of the detection result is improved.
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Citation Information

Patent Citations

  • Detachable novel truss node testing device

    CN102706682A

  • Experiment loading device and method considering stress amplitude of web member joint and applied to truss arch bridge

    CN105203398A

  • High-efficiency truss node strength detection device and detection method thereof

    CN115014968A

  • Metal additive topological space cable node model experiment device and evaluation method

    CN116663084A

  • Large-span steel structure beam-column joint test device

    CN209841551U