Damping device for concrete drilling and method of use

Abstract

The invention discloses a damping device for drilling of concrete and a using method. The device comprises a flexible plate, a bearing structure, a honeycomb-shaped damping structure layer and a support, wherein the flexible plate is arranged on a drill bit piercing face of a concrete component to be drilled; the bearing structure is arranged below the flexible plate and used for supporting the flexible plate, and the top of the bearing structure is in an arc shape so that reactive force of the concrete component can be transferred; the honeycomb-shaped damping structure layer is arranged between the flexible plate and the bearing structure; and the support is fixed to the position below the bearing structure through supporting connection rods. The damping device has the beneficial effects that the damping device can provide vertical supporting during drilling and absorb energy generated by impact vibration, so that a lower concrete protection layer is prevented from falling off in a large area under the impact vibration; the damping device provided by the invention is hardly restrained by spaces and can also be applied to unsmooth concrete bottom faces, the design is reasonable, the structure is simple, and field construction operation is facilitated; and through the design of the spherical support, the adjustment of the supporting angle of the whole damping device is facilitated, and supporting is more stable.

Description

technical field [0001] The invention relates to a shock absorbing device, in particular to a shock absorbing device for concrete drilling and a using method. Background technique [0002] When the concrete structure is reinforced and transformed by planting reinforcement technology, such as in the cable-stayed reinforcement model test of a long-span bridge and short tower, the concrete components need to be drilled according to the technological process. When drilling with a percussion drill, the drill bit will inevitably damage or even destroy the concrete member. Especially when opening the reinforcement holes along the thickness direction of the bottom plate of the concrete box girder, the impact force of the drill bit can easily destroy the protective layer of the concrete. The large-scale shedding of the structure not only affects the normal use of the structure, but also affects the bearing capacity of the structure. Therefore, it is a technical problem to be solved ...

AI Technical Summary

Problems solved by technology

When drilling a hole with a percussion drill, the drill bit will inevitably cause damage to the concrete component, or even destroy it.

Especially when opening the reinforcement holes along the thickness direction of the bottom plate of the concrete box girder, the impact force of the drill bit can easily destroy the protective layer of the concrete. The large area of ​​falling off not only affects the normal use of the structure, but also affects the bearing capacity of the structure

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