CN206828951U - Support with adjustable pinner and bridge for meizoseismal area - Google Patents

Abstract

The utility model provides a kind of support with adjustable pinner and bridge for meizoseismal area.Wherein, support with adjustable pinner includes：At least two layers of pinner and connector.Wherein, every layer of pinner is prefabricated concrete pad, also, every layer of concrete pad is reserved with the perforating through the cushion block；Each layer concrete pad is stacked successively, and the connector by being arranged in each perforating successively is detachably connected；The upper surface of the top layer concrete pad and the lower surface of the bottom concrete cushion block are additionally provided with built-in fitting.In the utility model, when causing the flatness of bridge pier generation vertical displacement and then influence road surface due to earthquake, pinner can be disassembled from bridge pier, the flatness on road surface is adjusted by the pinner for changing damage and the number of plies for adjusting pinner.

Description

Adjustable bearing pads and bridges used in strong earthquake areas

technical field

The utility model relates to the technical field of bridge construction, in particular to an adjustable bearing pad stone and a bridge used in a strong earthquake area.

Background technique

Pad stones are an important part of bridges, and are generally placed between bridge piers and seismic isolation supports. The main girder is erected on the seismic isolation support, and the road surface is laid on the main girder. At present, pad stones are generally concrete structures cast integrally with bridge piers. For bridges spanning faults, they are not only affected by the more destructive near-fault seismic acceleration, but also by the non-uniform displacement field caused by fault sliding. (i.e. cross-fault effect), resulting in the relative vertical displacement of the bridge piers on both sides of the fault after the earthquake, and then the longitudinal alignment of the bridge deck laid on the piers on both sides of the fault needs to be readjusted to meet the traffic demand. But at present, because the pad stone and the bridge piers are generally poured in one piece, if the flatness of the bridge deck on the bridge piers on both sides of the fault is adjusted, the bridge piers on both sides of the fault can only be rebuilt, which will greatly increase the construction cost. It will affect the commissioning time of the bridge and affect the normal operation of the bridge.

Utility model content

In view of this, the utility model proposes an adjustable bearing pad stone and bridge used in the strong earthquake area, aiming to solve the problem that the bridge piers need to be rebuilt due to the vertical displacement of the bridge piers on both sides of the fault after the earthquake, and then cause Increase the construction cost and affect the normal operation of the bridge.

In one aspect, the utility model provides an adjustable support pad stone used in a strong earthquake area, comprising: at least two layers of pad stones and connecting pieces. Wherein, the pad stones of each layer are prefabricated concrete pads, and the concrete pads of each layer are reserved with piercing holes through the pads; the concrete pads of each layer are stacked in sequence, And it is detachably connected through connecting pieces sequentially pierced in each piercing hole; the upper surface of the concrete pad placed on the top layer and the lower surface of the concrete pad placed on the bottom layer are also provided with embedded parts.

Further, the above-mentioned adjustable support pad used in the strong earthquake area further includes: a metal pipe; wherein, the metal pipes are sleeved in the piercing holes of the concrete pads of each layer.

Further, in the above-mentioned adjustable support pad used in strong earthquake areas, the metal pipe is a steel pipe.

Further, in the above-mentioned adjustable support pad used in strong earthquake areas, the connecting parts are bolts.

Further, in the above-mentioned adjustable bearing pad used in strong earthquake areas, the side surfaces of the concrete pads of each layer are also coated with an anti-corrosion layer.

Further, in the above-mentioned adjustable bearing pad used in strong earthquake areas, the upper and lower surfaces of the concrete pads of each layer are coated with anti-slip layers.

In the utility model, since the pad stone on the top floor and the shock-isolation bearing, the pad stone on the bottom layer and the bridge pier, and the pad stones of each layer are all detachably connected, when the vertical displacement of the pier occurs due to an earthquake, Then when the flatness of the road surface is affected, the pad stone can be disassembled from the bridge pier, and the flatness of the road surface can be adjusted by replacing the damaged pad stone and adjusting the number of layers of the pad stone. Furthermore, compared with the method of rebuilding the pier, the method of replacing the plinth stone in this embodiment greatly reduces the repair cost and shortens the maintenance period.

On the other hand, the utility model also proposes a bridge, which includes: bridge piers, seismic isolation bearings, main girders, road surfaces, and any of the above-mentioned adjustable bearing pads used in strong earthquake areas; wherein, the The concrete block on the top floor of the adjustable support pad stone is connected to the seismic isolation support through embedded parts; the concrete pad block on the bottom layer of the adjustable support pad stone is connected to the bridge pier through embedded parts connect.

Further, in the above-mentioned bridge, the concrete pad on the top floor is connected to the shock-isolation support by bolts.

Further, in the above-mentioned bridge, the concrete pad of the bottom layer is connected to the bridge pier by bolts.

Since the adjustable bearing pad stone has the above effects, the bridge with the adjustable bearing pad stone also has corresponding technical effects.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating preferred embodiments, and are not considered to limit the present invention. Also throughout the drawings, the same reference numerals are used to designate the same parts. In the attached picture:

Fig. 1 is a schematic diagram of the structure of the adjustable support pad stone provided in the embodiment of the present invention installed on the bridge pier;

Fig. 2 is the front view of the pad stone in the pad stone of the adjustable bearing provided in the embodiment of the utility model;

Fig. 3 is a side view of the pad stone of the adjustable support pad provided in the embodiment of the present invention.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

Referring to FIG. 1 to FIG. 3 , the preferred structures of the adjustable bearing cushion stones used in the strong earthquake area provided by this embodiment are shown in the figures. As shown in the figure, the device includes: at least two layers of stepping stones 1 and connectors (not shown in the figure). Wherein, each layer of pad stones 1 is a prefabricated concrete pad, and the concrete pads of each layer may be square, and of course, may also be in other shapes, which are not limited in this embodiment. Each layer of concrete pads is reserved with piercing holes 11 through the pads, and the concrete pads of each layer are stacked in sequence, and are detachably connected by connectors sequentially pierced in each piercing hole. During specific implementation, the connecting piece may be a bolt or the like.

The upper surface of the concrete pad placed on the top floor and the lower surface of the concrete pad placed on the bottom layer are also provided with embedded parts, and the upper surface of the concrete pad placed on the top floor passes through the embedded parts and the shock-isolation bearing (in the figure not shown), the lower surface of the bottom concrete pad is connected with the embedded part on the pier 2 through the embedded part. During specific implementation, the embedded part may be a steel anchor, and the end of the steel anchor is processed with threads to realize bolt connection.

It should be noted that the strong earthquake in this embodiment refers to an earthquake of magnitude five or above.

It should be noted that the number and thickness of the pad stones 1 can be determined according to the actual situation, which is not limited in this embodiment.

It should be noted that the up and down in this embodiment are relative to the state shown in FIG. 1 .

After the vertical displacement of the bridge under the action of the earthquake, the height of the bridge deck on both sides of the fault can be adjusted by adjusting the pad stones in this embodiment. The specific process is: first remove the pad stones 1 between each layer and place The connection between the pad stone 1 on the bottom layer and the pier 2 and the pad stone 1 placed on the top floor and the seismic isolation bearing, and then the bridge deck and the main girder are hoisted, and then according to the change of the longitudinal line shape of the bridge and the position of the pad stone In the case of damage, replace or increase the pad stones 1 in the piers on both sides of the fault, so that the pad stones 1 on the piers on both sides of the fault are placed at the same height, and then place the pad stones 1 between each layer and the bottom stone 1 Detachable connections are made between the pier 2 and between the top pad stone 1 and the seismic isolation support, and finally the main girder is hoisted and the road surface is paved.

It can be seen that in this embodiment, since the pad stone 1 on the top layer and the shock-isolation bearing, between the pad stone 1 on the bottom layer and the pier, and between the pad stones 1 of each layer are all detachable connections, when due to When the earthquake causes the vertical displacement of the pier and thus affects the flatness of the road surface, the pad stone can be removed from the pier, and the flatness of the road surface can be adjusted by replacing the damaged pad stone and adjusting the number of layers of the pad stone, which is different from the existing technology. Compared with the method of integrally pouring the plinth stone and the pier and then rebuilding the pier, the method of replacing the plinth stone in this embodiment greatly reduces the repair cost and shortens the maintenance period.

In the above-mentioned embodiment, metal pipes (not shown in the figure) can also be sleeved in the piercing holes 11 of each layer of concrete pads, and the connectors are pierced in the metal pipes to reduce the impact of the connectors on the piercing holes. 11 wear. During specific implementation, the metal pipe may be a steel pipe or the like.

In the above embodiments, the sides of the concrete pads of each layer can be coated with an anti-corrosion layer to prevent the external environment from corroding the concrete pads.

In the above embodiments, the upper and lower surfaces of the concrete pads of each layer are coated with anti-slip layers. Specifically, an inorganic zinc-rich anti-slip coating can be applied to avoid relative slippage between concrete pads of various layers.

To sum up, in this embodiment, since the padding stones of each layer are detachably connected, when the vertical displacement of the bridge pier due to the earthquake affects the smoothness of the road surface, the padding stones can be disassembled from the pier , to adjust the flatness of the road surface by replacing damaged pad stones and adjusting the number of layers of pad stones.

Bridge example:

The utility model also provides a bridge, comprising: a bridge pier, a seismic isolation support, a main girder, a road surface and any one of the above-mentioned adjustable support pad stones. Wherein, the concrete block on the top layer of the pad stone of the adjustable support is connected with the shock-isolation support through the embedded parts, and the concrete pad block on the bottom layer of the pad stone of the adjustable support is connected to the bridge pier through the embedded parts. During specific implementation, the concrete pads on the top floor can be connected to the seismic isolation bearings through bolts, and the concrete pads on the bottom layer can be connected to the bridge piers through bolts. The specific implementation process of the adjustable support pad can be referred to the above description, and will not be repeated in this embodiment.

Since the adjustable bearing pad stone has the above effects, the bridge with the adjustable bearing pad stone also has corresponding technical effects.

Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and equivalent technologies thereof, the utility model is also intended to include these modifications and variations.

Claims (9)

1. An adjustable support base stone for strong earthquake areas, comprising: at least two layers of cushion stones (1) and connecting pieces; wherein,

each layer of the cushion stone (1) is a prefabricated concrete cushion block, and a through hole (11) penetrating through the cushion block is reserved in each layer of the concrete cushion block;

the concrete cushion blocks of each layer are sequentially stacked and detachably connected through connecting pieces sequentially penetrating through the penetrating holes (11);

the upper surface of the concrete cushion block arranged on the top layer and the lower surface of the concrete cushion block arranged on the bottom layer are also provided with embedded parts.

2. The adjustable support bolster for severe seismic zones of claim 1, further comprising: a metal tube; and metal pipes are sleeved in the through holes of the concrete cushion blocks of each layer.

3. The adjustable support base cushion stone for the severe earthquake area as claimed in claim 2, wherein the metal pipe is a steel pipe.

4. The adjustable bolster for areas of intense earthquake as claimed in claim 1, wherein said connectors are bolts.

5. The adjustable support cushion stone for the strong earthquake area as claimed in any one of claims 1 to 4, wherein the side surface of each layer of the concrete cushion block is further coated with an anticorrosive coating.

6. The adjustable support cushion stone for the strong earthquake area as claimed in any one of claims 1 to 4, wherein the upper surface and the lower surface of each layer of the concrete cushion block are coated with anti-slip layers.

7. A bridge, comprising: the bridge comprises piers, shock-insulation supports, girders and a pavement, and is characterized by further comprising adjustable support cushion stones for strong earthquake areas according to any one of claims 1 to 6; wherein,

the concrete cushion block on the top layer in the adjustable support cushion stone is connected with the shock insulation support through an embedded part;

and the concrete cushion block of the middle bottom layer of the adjustable support base stone is connected with the bridge pier through an embedded part.

8. The bridge of claim 7, wherein the concrete pads of the top deck are connected to the seismically isolated mounts by bolts.

9. The bridge of claim 7, wherein the underlying concrete pad is connected to the pier by a bolt.