Bridge static load test bench

Abstract

The invention discloses a bridge static load test bench. The bridge static load test bench comprises a reaction frame, an end crossbeam, a bridge support, a lever beam, a lifting jack, a lifting jackcross beam and a vertical pull rod, wherein in test, a bridge is installed on the lever beam through a bridge support, the lever beam is put on the ground, the end crossbeam is connected with the reaction frame, the lever beam is connected with the reaction frame through the vertical pull rod, the lifting jack is fixedly connected below the reaction frame, and the lifting jack is put between the bridge and the lifting jack cross beam, so that the system comprising the test bench and the bridge have balance inner force. The reaction frame comprises an upper layer reaction frame and a lower layer reaction frame, which are detachably connected. The test bench can be suitable for conventional static load test and high load destruction test by regulating the number of layers of the reaction frame, and a central line of the test bench support and a central line of a bridge web are aligned through reasonable structure design.

Description

technical field [0001] The invention relates to the technical field of bridge static load test, in particular to a bridge static load test bench. Background technique [0002] In the bridge construction project, it is necessary to select a certain number of manufactured bridges for static load tests to ensure that the quality of the manufactured bridges meets the relevant technical requirements. The static load test bench is a device that provides test loads for bridge static load tests. Most of the currently used static load test benches are ordinary steel structure test benches designed with the principle of internal force self-balancing, and their main disadvantages are: [0003] (1) During the box girder test, it is necessary to open holes on the wing plate of the bridge to pass through the vertical tie rods, which caused unnecessary damage to the bridge; [0004] (2) Part of the non-opening static load test bench designed with the principle of leverage and self-balanc...

AI Technical Summary

Problems solved by technology

[0003] (1) During the box girder test, it is necessary to open holes on the wing plate of the bridge to pass through the vertical tie rods, which caused unnecessary damage to the bridge;

[0004] (2) Part of the non-opening static load test bench designed with the principle of leverage and self-balancing is only suitable for conventional static load tests. Reusable static load test bench;

[0005] (3) At present, the static load test bench of ordinary steel structure without holes can not solve the problem that the center line of the support of the test bench is not aligned with the center line of the web, which affects the accuracy of the test results

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