A construction device for rotating the top of a double-column pier large cantilever cap beam.

Abstract

This utility model belongs to the field of bridge rotation construction technology, and particularly relates to a construction device for rotating the top of a double-column pier large cantilever cap beam. It includes a central support component, located at the top of the pier cap and between the two piers, with its top end hinged to the bottom end of the cap beam; a rotating component, located at the top of the pier cap and outside the central support component; several supporting lifting components, symmetrically arranged on both sides of the cap beam, with their bottom ends slidingly contacting the top ends of the rotating components; and a driving component, mounted on the supporting lifting components and connected to the rotating components, used to drive the cap beam to rotate around the central support component. This utility model enables cap beam construction to be completed without affecting the existing railway line, while also allowing for the reuse of the temporary rotation structure. After rotation, the rotating support legs can lift the cap beam, adjusting its height and angle.

Description

Technical Field

[0001] This utility model belongs to the field of bridge rotation construction technology, and in particular relates to a construction device for rotating the top of a double-column pier large cantilever cap beam. Background Technology

[0002] In the field of transportation infrastructure, bridges serve as crucial connecting links, bearing a large volume of vehicle and pedestrian traffic. Currently, the demand for urban elevated bridges is constantly increasing, and conventional construction methods, such as cap beam construction and scaffolding erection, can impact existing routes. The traditional continuous beam pier-top rotation construction process involves placing a rotating ball joint at the center of the pier top, using a traction reaction seat to rotate the bridge; after rotation, jacks are used to lift the cap beam, the rotating ball joint is removed, and permanent supports are installed. However, the central ball joint used in this method cannot be reused, and the support legs are fixed after rotation, hindering the further promotion of pier-top rotation technology.

[0003] Therefore, it is necessary to design a double-column pier large cantilever cap beam column top rotation construction device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a construction device for rotating the top of a double-column pier large cantilever cap beam, which enables the cap beam construction to be completed without affecting the existing line. At the same time, the temporary rotating structure can be reused, and the rotating support can lift the cap beam after the rotation is completed, adjusting the height and angle of the cap beam.

[0005] To achieve the above objectives, this utility model provides the following solution: a construction device for rotating the top of a double-column pier large cantilever cap beam, comprising...

[0006] A central support assembly is installed at the top of the pier cap and located between two pier columns, with the top of the central support assembly hinged to the bottom of the cap beam.

[0007] A rotating component is disposed on the top of the support platform, and the rotating component is located outside the central support component;

[0008] Several supporting lifting components are symmetrically arranged on both sides of the cover beam, and the bottom end of the supporting lifting component slides in contact with the top end of the rotating component;

[0009] A drive assembly is disposed on the support lifting assembly. The drive assembly is connected to the rotating assembly for transmission. The drive assembly is used to drive the cover beam to rotate around the central support assembly.

[0010] A construction device for rotating the top of a double-column pier cantilevered cap beam based on this utility model includes a central support component comprising a central column, which is vertically arranged and its bottom end is detachably connected to the top end of the pier cap. The central column is located between the two pier columns, and a hinged part is provided at the top end of the central column, which is hinged to the bottom end of the cap beam.

[0011] A construction device for rotating the top of a double-column pier cantilevered cap beam based on this utility model includes a central ball joint, the bottom end of which is detachably connected to the top end of the central column, and the top end of which is hinged to the bottom end of the cap beam.

[0012] A construction device for rotating the top of a double-column pier large cantilever cap beam based on this utility model includes a rotating component comprising several columns, which are vertically arranged and whose bottom ends are detachably connected to the top of the pier cap. The columns are circumferentially arranged at equal intervals on the outside of the central support component, and the top ends of the columns are detachably connected to a slide rail. The support lifting component slides in contact with the top end of the slide rail.

[0013] A construction device for rotating the top of a double-column pier cantilevered cap beam based on this utility model includes a support lifting component comprising a support foot, the bottom end of which slides in contact with the top end of the slide rail, and a detachable stable bracket connected to the top end of the support foot, the top end of which abuts against the side wall of the cap beam.

[0014] A construction device for rotating the top of a double-column pier large cantilever cap beam based on this utility model includes a support foot comprising a movable walkway, the movable walkway being slidably disposed at the top of the slide rail, a jack being detachably connected to the top of the movable walkway, and a stabilizing bracket being detachably connected to the piston end of the jack.

[0015] This invention relates to a construction device for rotating the top of a double-column pier large cantilever cap beam, wherein the stabilizing support is a triangular stabilizing support.

[0016] A construction device for rotating the top of a double-column pier large cantilever cap beam based on this utility model, wherein the driving component includes a hydraulic motor, and the hydraulic motor is connected to a chain drive mounted on the rotating component.

[0017] Compared with the prior art, the present invention has the following advantages and technical effects:

[0018] The central support component, rotating component, support lifting component, and drive component of this utility model are all reusable, which greatly reduces costs. During the rotation process, the central support component acts as both a ball joint and a positioning pin. The support foot under the stable bracket is a movable support foot, which can be used as a support foot during rotation. After the rotation is completed, it can lift the cover beam and adjust the height and tilt angle of the cover beam. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0021] Figure 2 This is a side view of the present invention;

[0022] Figure 3 This is a cross-sectional view of the present invention.

[0023] Among them, 1. Pier column; 2. Central column; 3. Vertical column; 4. Slide rail; 5. Central ball joint; 6. Support leg; 7. Stabilizing support; 8. Pier cap; 9. Cap beam. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Reference Figures 1 to 3 As shown, this utility model provides a construction device for rotating the top of a double-column pier large cantilever cap beam, including...

[0027] The central support component is set at the top of the pier cap 8 and located between the two pier columns 1. The top of the central support component is hinged to the bottom of the cap beam 9.

[0028] A rotating component is installed at the top of the pier 8, and the rotating component is located outside the central support component;

[0029] Several supporting lifting components are symmetrically arranged on both sides of the cover beam 9, with the bottom of the supporting lifting components sliding in contact with the top of the rotating components;

[0030] The drive assembly is mounted on the support lifting assembly and is connected to the rotating assembly. The drive assembly is used to drive the cover beam 9 to rotate around the central support assembly.

[0031] Furthermore, the central support assembly includes a central column 2, which is vertically arranged and its bottom end is detachably connected to the top end of the pier 8. The central column 2 is located between two pier columns 1, and a hinged part is provided at the top end of the central column 2, which is hinged to the bottom end of the cap beam 9.

[0032] Central column 2 is a steel pipe central column.

[0033] Furthermore, the hinged part includes a central ball hinge 5, the bottom end of which is detachably connected to the top end of the central column 2, and the top end of the central ball hinge 5 is hinged to the bottom end of the cap beam 9.

[0034] Furthermore, the rotating component includes several columns 3, which are vertically arranged and whose bottom ends are detachably connected to the top end of the support platform 8. The several columns 3 are circumferentially arranged at equal intervals on the outside of the central support component, and the top ends of the several columns 3 are detachably connected to a slide rail 4, which supports the lifting component and slides in contact with the top end of the slide rail 4.

[0035] Slide 4 is a ring-shaped steel box girder slide.

[0036] Furthermore, the supporting lifting assembly includes a support leg 6, the bottom end of which slides in contact with the top end of the slide rail 4, and a detachable stabilizing bracket 7 connected to the top end of the support leg 6, the top end of which abuts against the side wall of the cover beam 9.

[0037] Furthermore, the support foot 6 includes a movable walkway, which is slidably mounted at the top of the slide rail 4. A jack is detachably connected to the top of the movable walkway, and the stabilizing bracket 7 is detachably connected to the piston end of the jack.

[0038] Furthermore, the stabilizing bracket 7 is a triangular stabilizing bracket.

[0039] Furthermore, the drive assembly includes a hydraulic motor, which is connected to a chain drive mounted on the rotating assembly.

[0040] This utility model also provides a construction method for a double-column pier large cantilever cap beam column top rotation construction device, including the following steps:

[0041] Before erecting the scaffolding and formwork along the centerline, install the central column 2 and central ball hinge 5, install the upright column 3 and slide rail 4, and reserve a pivot positioning hole at the position of the central ball hinge 5. Reserve a connection channel or connecting plate for the precision-rolled threaded steel at the position of the stabilizing support 7, and then pour the cap beam concrete. After prestressing tensioning, install the stabilizing support 7 and support legs 6, install the rotation traction power equipment, conduct trial rotation and monitoring, and then conduct formal rotation and monitoring. After the rotation is in place, lift the cap beam 9 using the support legs 6, remove the central ball hinge 5, and lower the beam to the designed position.

[0042] Weld the locking plate, then connect the pier reinforcement, and pour the concrete for the joint section pier column 1; after the concrete strength reaches the design requirements, cut off the welded locking plate, and remove the stabilizing support 7 and slide 4, etc.

[0043] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements to the technical solutions of the present utility model made by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope of the present utility model.

Claims

1. A construction device for rotating the top of a double-column pier large cantilever cap beam, characterized in that, include A central support assembly is set at the top of the pier (8) and located between two piers (1), and the top of the central support assembly is hinged to the bottom of the cap beam (9); A rotating assembly is disposed at the top of the support platform (8), and the rotating assembly is located outside the central support assembly; Several supporting lifting components are symmetrically arranged on both sides of the cover beam (9), and the bottom end of the supporting lifting component slides in contact with the top end of the rotating component; A drive assembly is disposed on the support lifting assembly. The drive assembly is connected to the rotating assembly in a transmission manner. The drive assembly is used to drive the cover beam (9) to rotate around the central support assembly.

2. The double-column pier large cantilever cap beam column top rotation construction device according to claim 1, characterized in that, The central support assembly includes a central column (2), which is vertically arranged and its bottom end is detachably connected to the top end of the pier (8). The central column (2) is located between two piers (1), and the top end of the central column (2) is provided with a hinged part, which is hinged to the bottom end of the cap beam (9).

3. The double-column pier large cantilever cap beam column top rotation construction device according to claim 2, characterized in that, The hinged part includes a central ball joint (5), the bottom end of which is detachably connected to the top end of the central column (2), and the top end of which is hinged to the bottom end of the cap beam (9).

4. The double-column pier large cantilever cap beam column top rotation construction device according to claim 1, characterized in that, The rotating assembly includes several columns (3), which are vertically arranged and whose bottom ends are detachably connected to the top end of the support platform (8). The columns (3) are circumferentially arranged at equal intervals on the outside of the central support assembly. The top ends of the columns (3) are detachably connected to a slide rail (4), and the support lifting assembly slides in contact with the top end of the slide rail (4).

5. The double-column pier large cantilever cap beam column top rotation construction device according to claim 4, characterized in that, The supporting lifting assembly includes a support leg (6), the bottom end of which slides in contact with the top end of the slide rail (4), and a detachable support bracket (7) is connected to the top end of the support leg (6), the top end of which abuts against the side wall of the cover beam (9).

6. The double-column pier large cantilever cap beam column top rotation construction device according to claim 5, characterized in that, The support foot (6) includes a movable walkway, which is slidably disposed at the top of the slide rail (4). A jack is detachably connected to the top of the movable walkway, and the stabilizing bracket (7) is detachably connected to the piston end of the jack.

7. The double-column pier large cantilever cap beam column top rotation construction device according to claim 6, characterized in that, The stabilizing bracket (7) is a triangular stabilizing bracket.

8. The double-column pier large cantilever cap beam column top rotation construction device according to claim 1, characterized in that, The drive assembly includes a hydraulic motor, which is connected to a chain drive mounted on the rotating assembly.

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