Circular pull-out test supporting device

Abstract

The invention provides a circular pull-out test supporting device, and relates to an auxiliary device in a pull-out test.The circular pull-out test supporting device comprises a support ring and a wedge-shaped cushion block, the support ring comprises a bottom plate, a top plate and support ribs, the bottom plate and the top plate are each a circular steel plate, the bottom plate is larger than the top plate, the support ribs are connected between the bottom plate and the top plate in an inclined mode, the bottom end of each support rib is connected to the upper surface of the bottom plate, and the top end of each support rib is connected to the lower surface of the top plate; a penetrating through hole is formed in the middle of the wedge-shaped cushion block, the bottom face of the wedge-shaped cushion block is a plane perpendicular to the axis of the through hole, and the top face of the wedge-shaped cushion block is an inclined plane which is not perpendicular to the axis of the through hole.When the circular pull-out test supporting device is adopted for conducting an anchor bolt pull-out test, the circular pull-out test supporting device effectively supports a jack, destruction of a concrete wall surface is avoided, whether an anchor bolt is perpendicular to the concrete wall surface or not, it can be effectively guaranteed that the center line of an oil cylinder of the jack is basically overlapped with the axis of the anchor bolt, the jack is prevented from being subjected to eccentric force, and the detection precision is improved.

Description

technical field [0001] The invention relates to an auxiliary device used in a pull-out test, in particular to a support device for an anchor rod pull-out test. Background technique [0002] When carrying out the anchor pullout test, it is necessary to clamp the anchor with a jack to detect the anchor force of the anchor in the concrete, and the jack is directly pressed against the concrete wall for detection, which is easy to damage the concrete wall; In the actual detection process, because many anchor rods are not vertical to the wall, it is difficult to ensure that the center line of the cylinder of the jack coincides with the axis of the anchor rod when the jack is used to clamp the anchor rod, which may easily cause eccentric tension and affect the detection accuracy. Contents of the invention [0003] The object of the present invention is to provide a support device for a circular pullout test, which can effectively support the jack to avoid damage to the concrete w...

AI Technical Summary

Problems solved by technology

[0002] When carrying out the anchor pullout test, it is necessary to clamp the anchor with a jack to detect the anchor force of the anchor in the concrete, and the jack is directly pressed against the concrete wall for detection, which is easy to damage the concrete wall; In the actual detection process, because many anchor rods are not vertical to the wall, it is difficult to ensure that the center line of the cylinder of the jack coincides with the axis of the anchor rod when the jack is used to clamp the anchor rod, which may easily cause eccentric tension and affect the detection accuracy.

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