CN221029645U - Thin-wall high pier column diaphragm plate dismantling-free support - Google Patents

Abstract

The utility model relates to a thin-wall high pier column diaphragm plate dismantling-free support, which belongs to the field of highway bridge construction, and comprises a framework, wherein the framework is embedded in pier body concrete along the short side direction of the diaphragm plate and is fixed with a vertical pier body main rib; the long-side steel bars are arranged on the rectangular steel bars along the long-side direction and form a net rack with the framework; and a laminate is paved outside the long-side steel bars and is used as a diaphragm plate bottom die. The utility model can improve the construction efficiency, quicken the construction progress, reduce the operation safety risk, omit the bottom die bracket dismantling procedure and reduce the cost investment while guaranteeing the construction quality.

Description

Thin-wall high pier column diaphragm plate dismantling-free support

Technical Field

The utility model belongs to the field of highway bridge construction, and particularly relates to a dismantling-free support for a diaphragm plate of a thin-wall high pier column.

Background

In the construction of highway bridges, the number of thin-wall hollow piers is generally increased when the pier height is more than 40 meters and less than 80 meters, the number of thin-wall high piers is increased, one middle diaphragm plate is arranged about 8 meters, 5 to 8 passages of diaphragm plates are arranged in each pier body, workers work in a narrow space and in hot weather areas, the workers swing sweat as rain, the bracket dismantling operation has a certain dangerous coefficient, the operations of hot and high temperature and risk are performed, the operation is complicated, in the construction of the traditional pier column diaphragm plates, the construction efficiency of the method is low, the progress is slow, the advance of the next pier body working procedure is restricted, the investment of cost is increased, the influence on construction period is large, and the corresponding workload is difficult to finish in the node; therefore, the problem is solved, and the method for supporting the diaphragm plates and the solid sections of the high pier column is improved, so that the time for transferring to the next section is shortened, and the diaphragm plates and the solid sections are more efficient and safer in supporting operation.

Disclosure of utility model

In order to solve the problems, the utility model provides the thin-wall high pier stud diaphragm plate dismantling-free support, which ensures the construction quality, improves the construction efficiency, accelerates the construction progress, reduces the operation safety risk, omits the bottom die support dismantling procedure and reduces the cost investment.

The technical scheme of the utility model is as follows:

The thin-wall high pier column diaphragm plate dismantling-free support comprises a framework, is embedded in pier body concrete along the short side direction of the diaphragm plate and is fixed with a vertical pier body main rib;

The long-side steel bars are arranged on the framework along the long-side direction and form a net rack with the framework;

And a laminate is paved outside the long-side steel bars and is used as a diaphragm plate bottom die.

Further, the skeleton is shaped like a Chinese character 'ji'.

Further, the skeleton comprises a plurality of steel bars with the length of 2.9 meters and the diameter of 28 mm.

Further, the transverse partition plates are embedded in pier body concrete for 30cm along the short side direction, and are fixed with the vertical pier body main ribs, and the distance is not more than 30cm.

Further, for the solid section of the column top, the rectangular steel bars are 32mm, the spacing is 150mm, and 22mm diagonal bracing steel bars are arranged for reinforcement.

The utility model can improve the construction efficiency, quicken the construction progress, reduce the operation safety risk, omit the bottom die bracket dismantling procedure and reduce the cost investment while guaranteeing the construction quality. The utility model is suitable for supporting the thin-wall high pier diaphragm plate and the solid section bearing template of the highway bridge, and the template is not removed, so that the construction of the diaphragm plate is completed.

Drawings

FIG. 1 is a view of the installation of a middle diaphragm reinforcement arch and a bottom mold;

FIG. 2 is a cross-sectional view of a septum reinforcement arch; the size is marked as mm;

FIG. 3 is a block top solid section support bar arch and bottom block installation view;

Fig. 4 is a cross-sectional view of a pier top solid segment support bar arch; the dimensions are noted mm.

Detailed Description

The following description of the embodiments will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. Based on the embodiments, all other embodiments that may be obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present application.

Unless otherwise defined, technical or scientific terms used in the embodiments of the present application should be given the ordinary meaning as understood by one of ordinary skill in the art. The terms "first," "second," and the like, as used in this embodiment, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. "upper", "lower", "left", "right", "transverse", and "vertical", etc. are used only with respect to the orientation of the components in the drawings, these directional terms are relative terms, which are used for descriptive and clarity with respect thereto and which may vary accordingly with respect to the orientation in which the components are disposed in the drawings.

As shown in fig. 1 and 2, the thin-wall high pier stud diaphragm plate dismantling-free support of the embodiment comprises a framework 1, wherein the framework is embedded in pier body concrete for 30cm along the short side direction of the diaphragm plate, and is fixed with a vertical pier body main rib, and the distance is not more than 30cm; the long-side steel bars 2 are distributed on the framework 1 along the long-side direction and form a net rack with the framework; and a laminate 3 is paved outside the long-side steel bars 2, and the laminate 3 is used as a diaphragm plate bottom die.

As a preferred form, the skeleton 1 is shaped like a Chinese character 'ji'. The skeleton 1 comprises a plurality of steel bars with the length of 3 meters and the diameter of 28 mm.

As shown in fig. 3 and 4, as another embodiment, for the solid section of the column top, the rectangular steel bars 4 are 32mm, the distance is 150mm, the second long-side steel bars 5 are distributed on the rectangular steel bars 4 along the long-side direction, and 22mm diagonal bracing steel bars 6 are arranged for reinforcement. And a second laminate 7 is paved outside the second long-side steel bars 5.

Based on the above structure, the dismantling-free bracket manufacturing and installing steps of the embodiment are as follows:

And (1) selecting a steel bar with the length of 3 meters and the diameter of 28mm as a framework 1, chamfering according to a diaphragm plate, bending the steel bar on a forming table, and processing the steel bar into a shape of a Chinese character 'ji'. The length of the reinforcing steel bars with the diameters of 12mm are matched with the long side direction of the diaphragm plate.

And (2) the thicknesses of the diaphragm plates in the step (2) are all 0.4m, the sizes of the diaphragm plates are calculated according to the variable cross sections of the high piers, and the pier body diaphragm plates and the pier body adopt an asynchronous construction method. When the chamfer template is installed, the top height is controlled by a stay wire, a reinforcement arch is embedded in the inner side of the pier body, a reinforcement processed into a shape like a Chinese character 'ji' is used as a framework 1, the reinforcement is embedded in the pier body concrete for 30cm along the short side direction of the diaphragm plate, and the reinforcement is fixed with a main reinforcement of the vertical pier body by spot welding, and the distance is not more than 30cm.

And (3) installing long-side steel bars 2 with the length of 12mm along the long-side direction, placing the long-side steel bars on the framework 1 as distribution bars, forming a net rack, and fixing the crossing points by spot welding to form the bracket.

And (4) paving a 15mm laminate 3 outside the reinforced bar arch frame, wherein the reinforced bar arch frame and the bottom die are disposable and are not dismounted as diaphragm bottom dies.

And (5) after the diaphragm plate bottom die is installed, checking the size, installing reinforcing steel bars of various numbers of the diaphragm plate, reserving a manual access opening of 40X 60cm, and pouring diaphragm plate concrete.

And (3) after the strength of the diaphragm plate concrete is greater than 2.5MPa, the lower section pier body operation can be performed, and the diaphragm plate bottom die and the bracket are not removed.

The solid section of the column top in the step (7) also adopts the method, the diameter of the rectangular steel bars 4 is increased to 32mm, the distance is 150mm, the second long-side steel bars 5 are distributed on the rectangular steel bars 4 along the long-side direction, and 22mm diagonal bracing steel bars 6 are arranged for reinforcement, so that the bottom die and the support are not removed.

And the diaphragm construction process comprises the following steps: preparation of construction, manufacturing of a plurality of square steel bars, manufacturing of distribution bars, on-site assembly of a bracket, mounting of a bottom die laminate, mounting of diaphragm steel bars, pouring of diaphragm concrete, maintenance of diaphragm concrete, and transfer to the next section of pier body.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (5)

1. The utility model provides a thin wall height pier stud diaphragm exempts from to demolish support which characterized in that: the transverse partition plate comprises a framework, wherein the framework is embedded in pier body concrete along the short side direction of the transverse partition plate and is fixed with a vertical pier body main rib;

The long-side steel bars are arranged on the framework along the long-side direction and form a net rack with the framework;

And a laminate is paved outside the long-side steel bars and is used as a diaphragm plate bottom die.

2. The thin-walled high pier stud diaphragm dismantling-free bracket of claim 1, wherein: the framework is shaped like a Chinese character 'ji'.

3. The thin-walled high pier stud diaphragm dismantling-free bracket of claim 2, wherein: the skeleton includes a plurality of length 3 meters, and the diameter is 28 mm's reinforcing bar.

4. The thin-walled high pier stud diaphragm dismantling-free bracket of claim 1, wherein: the transverse partition boards are embedded in pier body concrete for 30cm along the short side direction, and are fixed with the main ribs of the vertical pier body, and the distance is not more than 30cm.

5. The thin-walled high pier stud diaphragm dismantling-free bracket of claim 1, wherein: for the solid section of the column top, the rectangular steel bars are 32mm, the spacing is 150mm, and 22mm diagonal bracing steel bars are arranged for reinforcement.