Prefabricated pier column installation perpendicularity adjusting structure

Abstract

The utility model discloses a prefabricated pier column installation perpendicularity adjusting structure which comprises a prefabricated pier column, a bearing platform, a center base plate, a bearing platform joint bar and an adjusting gasket, and the adjusting gasket comprises a circular ring gasket and a U-shaped gasket. The circular ring gasket is arranged on the bearing platform joint bar in a sleeving mode in advance before the prefabricated pier column is hoisted, and the U-shaped gasket is inserted into the bearing platform joint bar in a sliding mode after the prefabricated pier column is hoisted. According to the utility model, before the prefabricated pier column is hoisted, the circular ring gaskets with different thicknesses or different numbers are sleeved on the bearing platform joint bars at different positions in advance, the overall top surface height is controlled to achieve a preliminary horizontal adjustment effect, the prefabricated pier column is put down after bed mortar, the perpendicularity of the prefabricated pier column is measured, and if the perpendicularity still has small deviation, the prefabricated pier column is lifted. And the perpendicularity can be quickly adjusted only by inserting different numbers of U-shaped gaskets into the sides of the bearing platform joint bars at different positions in a sliding manner.

Description

Technical Field

[0001] The utility model relates to the technical field of component installation adjustment, in particular to a prefabricated pier column installation verticality adjustment structure. Background Art

[0002] In recent years, prefabricated bridges have developed rapidly in China. Prefabricated components require high installation precision, and prefabricated piers have many sizes and heights. Steel plates are installed in the center between the piers and the abutments to bear the weight, and high-strength mortar is laid around them to connect them. The verticality of the piers needs to be strictly controlled during installation.

[0003] In the prior art, the main method for adjusting the verticality of prefabricated pier column installation is to use high-strength bolts to fix the supporting brackets on the pier column, and then use the jack to adjust it. This adjustment method requires pre-hoisting to initially adjust the height of the jack, and then secondary hoisting after the mortar is installed. The pier column pre-bearing platform can only be removed after the strength of the joint filler meets the requirements. Not only does it require a large amount of labor costs and materials, and has poor economic benefits, but it is also cumbersome to operate, requires multiple hoisting, and has a high safety risk. Utility Model Content

[0004] The utility model provides a prefabricated pier column installation verticality adjustment structure with flexible and simple operation, low safety risk and high economic benefit, which can solve at least one of the above technical problems.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a prefabricated pier column installation verticality adjustment structure, including a prefabricated pier column, a cap, a center pad, a cap dowel and an adjustment gasket, wherein the adjustment gasket includes a circular gasket and a U-shaped gasket;

[0006] The cap has multiple dowel bars, which are pre-buried on the cap at vertical intervals and arranged in a ring shape. The center pad is centrally arranged between the multiple cap dowel bars and horizontally attached to the cap. The prefabricated pier is vertically hoisted on the cap along the multiple cap dowel bars. The annular gasket is pre-installed on the cap dowel before the prefabricated pier is hoisted. The U-shaped gasket is slidably inserted into the cap after the prefabricated pier is hoisted.

[0007] Furthermore, a through hole is provided in the center of the annular gasket, and the through hole matches with the support base dowel sleeve.

[0008] Furthermore, there are multiple circular gaskets made of steel plates with different thickness specifications. Before the prefabricated pier is hoisted, one or more circular gaskets with different thickness specifications can be pre-installed on one or more of the base reinforcement bars until the horizontal plane formed by the top surfaces of multiple circular gaskets is connected together and has the same height as the horizontal plane where the top surface of the center pad is located.

[0009] Furthermore, the U-shaped gasket is provided with an opening connected to the center, and the opening is plug-matched with the support bar.

[0010] Furthermore, there are multiple U-shaped gaskets made of steel plates with the same thickness specifications, and the thickness is equal to or less than the thickness of the circular gasket with the minimum thickness specification. After the prefabricated pier is hoisted, one or more of the U-shaped gaskets can be slid from the side and inserted into one or more of the base reinforcement bars, and can be stacked with the circular gaskets, or not stacked with the circular gaskets, until the verticality of the prefabricated pier meets the design specification requirements.

[0011] Furthermore, a plurality of the pedestal dowels are arranged on the top surface of the pedestal to form a rectangular annular frame whose cross-sectional area is not greater than that of the prefabricated pier, and the annular gasket or the U-shaped gasket is preferentially installed on the pedestal dowels located at the center of each side of the rectangular annular frame.

[0012] Furthermore, the upper layer of the center pad is set as a rubber layer, and the lower layer is set as a steel plate layer. The rubber layer is adhered to the bottom of the prefabricated pier, and the steel plate layer is adhered to the top of the pedestal. High-strength mortar is filled around the center pad between the prefabricated pier and the pedestal.

[0013] The beneficial effects of the utility model are embodied in:

[0014] In the utility model, a central pad that plays a bearing role is placed in advance on the top of the pedestal and in the middle of a plurality of pedestal dowels, and before hoisting the prefabricated pier column, annular gaskets of different thicknesses or different numbers are pre-installed on the pedestal dowels located at different positions to control the overall top surface height to achieve a preliminary horizontal adjustment effect. After the mortar is seated, the prefabricated pier column is lowered and its verticality is measured. If there is still a small deviation in the verticality, the verticality can be quickly adjusted by sliding different numbers of U-shaped gaskets through the sides of the pedestal dowels located at different positions. There is no need to lift and adjust the prefabricated pier column as a whole, nor is there any need to install supporting corbels or use jacks before each hoisting. Not only is the operation flexible and simple, the success rate of the hoisting operation is high, but also the labor cost and the investment in materials and equipment can be reduced, which has high economic benefits and also reduces the safety risks of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the installation of prefabricated piers according to an embodiment of the utility model.

[0016] Figure 2 It is a top view of the support platform of an embodiment of the utility model.

[0017] Figure 3It is a schematic diagram of the overall structure of the annular gasket of an embodiment of the utility model.

[0018] Figure 4 It is a schematic diagram of the overall structure of a U-shaped gasket in an embodiment of the utility model.

[0019] The markings of the components in the attached drawings are: 1. prefabricated pier; 2. pedestal; 3. center pad; 4. pedestal dowel; 5. annular gasket; 501. through hole; 6. U-shaped gasket; 601. opening. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. It should be noted that the meaning of "and / or" appearing in the full text includes three parallel solutions. Taking "A and / or B" as an example, it includes A solution, or B solution, or A and B meet the solution at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to achieve. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection required by the utility model.

[0021] See also Figure 1-2 The embodiment of the utility model provides a prefabricated pier column installation verticality adjustment structure, including a prefabricated pier column 1, a cap 2, a center pad 3, a cap dowel 4 and an adjustment gasket, wherein the adjustment gasket includes a circular gasket 5 and a U-shaped gasket 6;

[0022] There are multiple cap dowels 4, which are vertically embedded in the cap 2 and arranged in a ring shape. The center pad 3 is centrally arranged between the multiple cap dowels 4 and horizontally attached to the cap 2. The prefabricated pier 1 is vertically hoisted on the cap 2 along the multiple cap dowels 4. The annular gasket 5 is pre-installed on the cap dowel 4 before the prefabricated pier 1 is hoisted. The U-shaped gasket 6 is slidably inserted into the cap dowel 4 after the prefabricated pier 1 is hoisted.

[0023] In the utility model, a central pad that plays a bearing role is placed in advance on the top of the pedestal and in the middle of a plurality of pedestal dowels, and before hoisting the prefabricated pier column, annular gaskets of different thicknesses or different numbers are pre-installed on the pedestal dowels located at different positions to control the overall top surface height to achieve a preliminary horizontal adjustment effect. After the mortar is seated, the prefabricated pier column is lowered and its verticality is measured. If there is still a small deviation in the verticality, the verticality can be quickly adjusted by sliding different numbers of U-shaped gaskets through the sides of the pedestal dowels located at different positions. There is no need to lift and adjust the prefabricated pier column as a whole, nor is there any need to install supporting corbels or use jacks before each hoisting. Not only is the operation flexible and simple, the success rate of the hoisting operation is high, but also the labor cost and the investment in materials and equipment can be reduced, which has high economic benefits and also reduces the safety risks of construction.

[0024] See also Figure 3 In this embodiment, the annular gasket 5 is provided with a through hole 501 in the center, and the through hole 501 is matched with the cap dowel 4. With this design, the diameter of the through hole 501 should be greater than or equal to the diameter of the cap dowel 4. During actual construction, the size of the annular gasket 5 can be prefabricated in advance according to the diameter of the cap dowel 4.

[0025] See also Figure 1-3 In this embodiment, the circular gasket 5 has multiple rings, which are made of steel plates with different thickness specifications. Before the prefabricated pier 1 is hoisted, one or more circular gaskets 5 of different thickness specifications can be pre-installed on one or more of the cap inserts 4 until the horizontal plane formed by the top surfaces of the multiple circular gaskets 5 is connected together and the horizontal plane where the top surface of the center pad 3 is located is consistent in height. With this design, before the prefabricated pier 1 is hoisted, the top elevation of the center pad 3 is measured in advance, and one or more circular gaskets 5 are preferentially installed along the center position of each side of the rectangular ring frame surrounded by the multiple cap inserts 4. During installation, the circular gaskets 5 of different thickness specifications can be selected according to the actual top elevation of the center pad 3 until the top elevations of the two are maintained consistent, so that the verticality requirement of the prefabricated pier 1 when hoisted downward can be met with a smaller deviation range.

[0026] See also Figure 4 In this embodiment, the U-shaped gasket 6 is provided with an opening 601 connected to the center, and the opening 601 is plugged and matched with the cap dowel 4. With this design, the diameter of the opening 601 should be greater than or equal to the diameter of the cap dowel 4. During actual construction, the size of the U-shaped gasket 6 can be prefabricated in advance according to the diameter of the cap dowel 4.

[0027] See also Figure 1 , 2And 4, in this embodiment, the U-shaped gasket 6 has multiple, is made of steel plate material, has the same thickness specification, and the thickness is equal to or less than the thickness of the circular gasket 5 with the minimum thickness specification. After the prefabricated pier 1 is hoisted, one or more of the U-shaped gaskets 6 can be slid from the side and inserted into one or more of the base dowels 4, and can be stacked with the circular gasket 5, or not stacked with the circular gasket 5, until the verticality of the prefabricated pier 1 meets the design specification requirements. In this way, after the annular gasket 5 is installed and after the prefabricated pier 1 is hoisted and lowered by the seat mortar, the verticality of the prefabricated pier 1 should be measured immediately. If the verticality meets the design specification requirements, the hoisting work is completed. If the verticality still does not meet the design specification requirements, the position and number of the U-shaped gaskets 6 to be added are calculated and determined according to the inclination direction, tan angle and height difference, and the prefabricated pier 1 is hoisted upward to a certain height without completely separating from the cap dowel 4. The hoisting height is generally set to 10 cm, and the U-shaped gasket 6 is inserted from the side of the cap dowel 4 to compensate for the inclination height error until the verticality meets the design specification requirements, and the prefabricated pier 1 is lowered, and the hoisting work is completed.

[0028] It should be noted that, in the present application, the thickness of the U-shaped gasket 6 is set to a smaller value for flexible adjustment, and is generally set to 1 mm.

[0029] See also Figure 1-2 In this embodiment, a plurality of said cap inserts 4 are arranged on the top surface of said cap 2 to form a rectangular annular frame whose cross-sectional area is not greater than that of said prefabricated pier 1, and said annular gaskets 5 or said U-shaped gaskets 6 are preferably installed on said cap inserts 4 located at the center of each side of said rectangular annular frame. With such a design, in general, by firstly putting a plurality of said annular gaskets 5 on said cap inserts 4 located at the center of each side, the requirement of the same top elevation of both can be met. If it is not met, the annular gaskets 5 of different thickness specifications are replaced or superimposed. The above operation can also be repeated on said cap inserts 4 at other positions of the edge until the elevation is maintained consistent. At this time, the said prefabricated pier 1 is hoisted and lowered, and its verticality generally meets the design specification requirements, or there is a small error. If it does not meet the design specification requirements, similarly, the said U-shaped gaskets 6 are slid and inserted according to the above operation until the verticality fully meets the design specification requirements.

[0030] See also Figure 1-2In this embodiment, the upper layer of the central pad 3 is set as a rubber layer, and the lower layer is set as a steel plate layer. The rubber layer is attached to the bottom of the prefabricated pier 1, and the steel plate layer is attached to the top of the cap 2. High-strength mortar is filled around the central pad 3 between the prefabricated pier 1 and the cap 2. With this design, the high-strength mortar is generally laid with a thickness of 2 cm. Before the strength of the high-strength mortar reaches the requirement, the prefabricated pier 1 is supported by the central pad 3 and the adjusting gasket.

[0031] In summary, in the utility model, a central pad that plays a bearing role is placed in advance on the top of the pedestal and in the middle of multiple pedestal dowels, and before hoisting the prefabricated pier column, annular gaskets of different thicknesses or different numbers are pre-installed on the pedestal dowels located at different positions to control the overall top surface height to achieve a preliminary horizontal adjustment effect. After the mortar is seated, the prefabricated pier column is lowered and its verticality is measured. If there is still a small deviation in the verticality, it is only necessary to slide different numbers of U-shaped gaskets from the side of the pedestal dowels located at different positions to complete the rapid adjustment of the verticality. There is no need to lift and move the prefabricated pier column as a whole, nor is there any need to install supporting legs or use jacks before each hoisting. It is not only flexible and simple to operate, but also has a high success rate in the hoisting operation. It can also reduce labor costs and the investment in materials and equipment, has high economic benefits, and also reduces the safety risks of construction.

[0032] It should be understood that the examples and implementation modes described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on the examples and implementation modes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A prefabricated pier column installation verticality adjustment structure, characterized in that: It comprises a prefabricated pier column (1), a cap (2), a center pad (3), a cap dowel (4) and an adjusting gasket, wherein the adjusting gasket comprises a circular gasket (5) and a U-shaped gasket (6); The cap ribs (4) are provided in plurality, and are pre-buried on the cap (2) at vertical intervals and arranged in a ring shape. The center pad (3) is centrally arranged between the plurality of cap ribs (4) and horizontally attached to the cap (2). The prefabricated pier (1) is vertically hoisted on the cap (2) along the plurality of cap ribs (4). The annular gasket (5) is pre-mounted on the cap rib (4) before the prefabricated pier (1) is hoisted. The U-shaped gasket (6) is slidably inserted into the cap rib (4) after the prefabricated pier (1) is hoisted.

2. The prefabricated pier column installation verticality adjustment structure according to claim 1, characterized in that: The annular gasket (5) is provided with a through hole (501) in the center, and the through hole (501) is fitted and matched with the support rib (4).

3. The prefabricated pier installation verticality adjustment structure according to claim 1, characterized in that: There are a plurality of circular gaskets (5) made of steel plates with different thickness specifications. Before the prefabricated pier (1) is hoisted, one or more circular gaskets (5) of different thickness specifications can be pre-installed on one or more of the pedestal dowels (4) until the horizontal plane formed by the top surfaces of the plurality of circular gaskets (5) connected together is at the same height as the horizontal plane where the top surface of the center pad (3) is located.

4. The prefabricated pier column installation verticality adjustment structure according to claim 1, characterized in that: The U-shaped gasket (6) is provided with an opening (601) connected to the center, and the opening (601) is plugged and matched with the support rib (4).

5. The prefabricated pier installation verticality adjustment structure according to claim 1, characterized in that: The U-shaped gaskets (6) are provided in plurality and are made of steel plates with the same thickness specifications, and the thickness is equal to or less than the thickness of the circular gasket (5) with the minimum thickness specification. After the prefabricated pier (1) is hoisted, one or more of the U-shaped gaskets (6) can be slid from the side and inserted into one or more of the pedestal dowels (4), and can be stacked with the circular gaskets (5), or not stacked with the circular gaskets (5), until the verticality of the prefabricated pier (1) meets the design specification requirements.

6. The prefabricated pier installation verticality adjustment structure according to claim 1, characterized in that: A plurality of the pedestal dowel bars (4) are arranged on the top surface of the pedestal (2) to form a rectangular annular frame whose cross-sectional area is not greater than that of the prefabricated pier (1); the annular gasket (5) or the U-shaped gasket (6) is preferably installed on the pedestal dowel bars (4) located at the center of each side of the rectangular annular frame.

7. The prefabricated pier installation verticality adjustment structure according to claim 1, characterized in that: The upper layer of the central pad (3) is set as a rubber layer, and the lower layer is set as a steel plate layer. The rubber layer is adhered to the bottom of the prefabricated pier (1), and the steel plate layer is adhered to the top of the base (2). High-strength mortar is filled around the central pad (3) between the prefabricated pier (1) and the base (2).

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