Cast-in-place bridge high pier grout stopping structure

Abstract

The utility model discloses a grout stopping structure for a high pier of a rigid frame bridge, which is characterized in that a vertical drainage hole channel is arranged at a section and channel steel is additionally arranged at the rear end of the vertical drainage hole channel to form a water dripping groove, so that maintenance water, grout and the like flowing to the high pier after passing through the vertical drainage hole channel are stopped, and the appearance quality of the high pier after top sealing is guaranteed. Therefore, according to the high pier grout stopping structure of the rigid frame bridge provided by the utility model, two water retaining strips which are gradually close to the high pier column are arranged at the top of the high pier column and the bottom of an inner box of a cast-in-place box girder section connected with the high pier column, and a vertical drainage hole channel is formed in the convergence position of the two water retaining strips on the inner box; the vertical drainage hole channel penetrates through the cast-in-place box girder section, and at least one V-shaped water dripping groove is formed in the position, located between the high-pier pier column and the vertical drainage hole channel, of the bottom of the cast-in-place box girder section.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge construction technical field especially relates to a cast-in-place bridge high pier stop grouting structure. BACKGROUND

[0002] When the Nanming River super-large bridge is in the box girder segment construction, the vertical drainage hole is usually arranged at the segment root (close to the pier column), the curing water, the concrete floating slurry, the pump washing water, the cleaning equipment water after the completion of the grouting, and the grouting slurry enter the inner box through the pre-buried hole of the top plate, flow to the high pier column through the drainage hole, pollute the concrete of the pier column, and affect the appearance of the pier column. In addition, when the pier column is constructed by the mold, the foam rubber attached to the bottom of the mold does not effectively play a role, resulting in the grouting leakage of the concrete, and further polluting the appearance quality of the pier column. The pier column is capped or modified after the completion of the bridge. SUMMARY

[0003] The main purpose of the utility model is to provide a cast-in-place bridge high pier stop grouting structure, which is arranged at the segment and is provided with a vertical drainage hole at the back end of the segment and a channel steel to form a drip channel, so as to block the curing water and slurry flowing to the high pier through the vertical drainage hole, and to ensure the appearance quality of the high pier after capping.

[0004] Therefore, the cast-in-place bridge high pier stop grouting structure provided by the utility model is arranged at the top of the high pier column and the inner box bottom of the cast-in-place box girder segment connected to the high pier column, and two water blocking strips are arranged to gradually approach the high pier column. A vertical drainage hole is arranged at the convergence of the two water blocking strips on the inner box, the vertical drainage hole penetrates the cast-in-place box girder segment, and at least one V-shaped drip channel is arranged between the high pier column and the vertical drainage hole at the bottom of the cast-in-place box girder segment.

[0005] Specifically, one end of the two water blocking strips away from the high pier column extends to the position of the two side walls of the inner box.

[0006] Specifically, the vertical drainage hole is 0.3m-0.4m away from the high pier column.

[0007] Specifically, the channel steel is arranged around the bottom of the high pier mold, the opening surface of the channel steel faces the high pier column, and the grouting stop strip in close contact with the high pier column is matched and fixed in the channel steel.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] 1. Two water retaining strips are arranged at the inner box bottom of the cast-in-place box girder section directly connected with the high pier column, sewage and slurry are collected and discharged to the outside of the inner box through the vertical drainage hole, the V-shaped drip groove is formed by installing the channel steel at the rear end of the vertical drainage hole, the maintenance water and slurry flowing to the high pier through the vertical drainage pipe are blocked, and the appearance quality of the high pier after capping is ensured.

[0010] 2. The channel steel + slurry stopping strip is installed at the formwork bottom opening during the high pier construction to stop the slurry, the slurry leakage is prevented, the already poured and formed pier column is prevented from being polluted, and the appearance quality of the high pier after capping is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0012] Figure 1 is a cast-in-place box girder section connected with a high pier column provided by the embodiments of the present application;

[0013] Figure 2 is a water retaining strip distribution schematic diagram provided by the embodiments of the present application;

[0014] Figure 3 is a high pier column channel steel + slurry stopping strip schematic diagram provided by the embodiments of the present application;

[0015] Wherein: 1, high pier column; 2, cast-in-place box girder section; 3, inner box; 4, water retaining strip; 5, vertical drainage hole; 6, V-shaped drip groove; 7, channel steel; 8, slurry stopping strip; 9, high pier formwork. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0017] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0018] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0019] Referring to Figure 1 A cast-in-place bridge high pier stop grouting structure, two water retaining strips 4 gradually closing towards the high pier pier column 1 are arranged at the bottom of the inner box 3 of the cast-in-place box girder section 2 directly connected with the high pier pier column 1, and a vertical drainage hole 5 is arranged at the convergence of the two water retaining strips 4 on the inner box 3, the vertical drainage hole 5 penetrates the cast-in-place box girder section 2, and the slurry collected by the water retaining strips 4 is discharged to the outside of the box girder by using the vertical drainage hole 5, and at least one V-shaped water dripping groove 6 is arranged at the bottom of the cast-in-place box girder section 2 between the high pier pier column 1 and the vertical drainage hole 5.

[0020] In the embodiment, two water retaining strips 4 are arranged at the bottom of the inner box 3 of the cast-in-place box girder section 2 directly connected with the high pier pier column 1, the sewage and slurry are collected and discharged to the outside of the inner box 3 by using the vertical drainage hole 5, the V-shaped water dripping groove 6 is formed by adding the channel steel 7 at the rear end of the vertical drainage hole 5, the maintenance water, slurry and the like flowing to the high pier through the vertical drainage pipe are blocked, and the appearance quality of the high pier after capping is ensured.

[0021] Referring to Figure 2 Specifically, in actual arrangement, the vertical drainage hole 5 is 0.3m-0.4m away from the high pier pier column, and the V-shaped water dripping groove 6 is directly formed by adding the channel steel 7. The ends of the two water retaining strips 4 away from the high pier pier column 1 extend to the positions of the two side walls of the inner box 3 respectively, so that as much slurry as possible can be collected.

[0022] Referring to Figure 3In some other embodiments, a channel steel 7 is arranged around the bottom opening of the high pier formwork 9, the opening of the channel steel 7 faces the high pier pier 1, a stop grout strip 8 in close contact with the high pier pier 1 is fixedly arranged in the channel steel 7, and the stop grout strip 8 can be made of high-elastic rubber material. In this embodiment, the channel steel 7 + stop grout strip 8 is installed at the bottom opening of the formwork during high pier construction to stop grout, prevent grout leakage, and pollute the already poured and formed pier, thereby ensuring the appearance quality of the high pier after capping.

[0023] Any of the above technical solutions of the utility model discloses, if it discloses numerical range except another declaration, then the numerical range disclosed is preferred numerical range, and any person skilled in the art should understand that: preferred numerical range is only the numerical value that technical effect is more obvious or representative in many implementable numerical values. Because there are many values, it is impossible to enumerate, therefore, the utility model discloses part of numerical value to illustrate the technical scheme of the application, and the above enumerated numerical value should not constitute the limitation to the protection scope of the present application.

[0024] Meanwhile, the above utility model discloses or involves mutually fixed connection parts or structural members, and except another declaration, fixed connection can be understood as: detachable fixed connection (for example, bolt or screw connection), and also can be understood as: non-detachable fixed connection (for example, riveting, welding), of course, mutual fixed connection can also be replaced by integral structure (for example, integrally formed by casting process) (obviously, except for the integral forming process).

[0025] In addition, the above utility model discloses any technical solution in the application of the term for indicating position relationship or shape except another declaration, and the meaning includes approximate, similar or close state or shape. Any component provided by the utility model can be assembled by a plurality of individual components, or can be a single component manufactured by integral forming process.

[0026] The above embodiments are only examples for clearly illustrating the utility model, and are not limited to the embodiments. For ordinary skilled in the art, other different forms of changes or changes can be made on the basis of the above description. Here, all the embodiments need not be exhausted, and the obvious changes derived therefrom are still within the protection scope of the utility model.

Claims

1. A grout-stopping structure for high piers of cast-in-place bridges, characterized in that: Two water retaining strips (4) gradually approaching the high pier column (1) are arranged at the bottom of the inner box (3) of the cast-in-situ box girder section (2) connected with the top of the high pier column (1), and a vertical drainage channel (5) is arranged at the approaching and converging position of the two water retaining strips (4) on the inner box (3), the vertical drainage channel (5) penetrates through the cast-in-situ box girder section (2), and at least one V-shaped water dripping groove (6) is arranged between the high pier column (1) and the vertical drainage channel (5) at the bottom of the cast-in-situ box girder section (2).

2. The cast-in-situ bridge high pier construction of claim 1, wherein: The ends of the two water retaining strips (4) away from the high pier column (1) respectively extend to the positions of the two side walls of the inner box (3).

3. The cast-in-situ bridge high pier construction of claim 1, wherein: The vertical drainage channel (5) is 0.3-0.4 m away from the high pier column (1).

4. The cast-in-situ bridge high pier construction of any one of claims 1-3, characterized in that: Steel channels (7) are arranged around the bottom opening of the high pier formwork, the opening faces of the steel channels (7) are arranged to face the high pier column (1), and the steel channels (7) are matched and fixed with the stop water strips (8) in close contact with the high pier column (1).

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