CN221798159U - Accurate adjusting device of bridge spherical steel support pretilt - Google Patents

Abstract

The utility model belongs to the technical field of installation and construction of urban rail transit viaduct bearings, and relates to a precise pre-bias adjustment device for bridge spherical steel bearings, including a base, longitudinal adjustment steel, longitudinal limit steel, transverse limit steel, longitudinal limit steel plate, pre-bias transmission angle steel and pre-bias transmission angle steel. The base is arranged on the left and right sides of the device, and the base is divided into a bearing part and a connecting part. The base limit steel plate is connected to the middle section of the base connecting part, the longitudinal adjustment steel is connected to the upper section of the base connecting part, the longitudinal limit steel is connected to the transverse limit steel plate, the transverse limit steel is connected to the longitudinal adjustment steel plate, the pre-bias transmission angle steel is installed at the head end of the longitudinal adjustment steel, and the pre-bias limit angle steel is installed at the tail end of the longitudinal adjustment steel. In actual use, the utility model solves the problems of large deviation between the actual pre-bias amount and the theoretical pre-bias amount during the adjustment of the pre-bias of the bridge spherical steel bearing, large error between the actual pre-bias direction and the theoretical pre-bias direction, and the non-levelness of the steel plate on the actual bearing after the offset is completed.

Description

A bridge spherical steel support pre-biased precision adjustment device

Technical Field

The utility model belongs to the technical field of installation and construction of urban rail transit viaduct supports, and in particular relates to a precise pre-biased adjustment device for a bridge spherical steel support.

Background Art

The preset offset of the movable bearing of the bridge is to offset the longitudinal horizontal displacement generated by the movable bearings of each pier during the construction phase. The conventional practice is to cut off the steel belt connecting the upper and lower steel plates of the bearing, and use external force to push the steel plate on the bearing according to the calculated pre-bias. During the pushing process, the existing operating tools are backward, which may lead to the bearing offset direction, offset displacement and the horizontality of the steel plate on the bearing after the offset failing to meet the theoretical requirements, resulting in errors. This may easily lead to the prestressed concrete beam bearing being unable to return to the theoretical stress state after the prestressing is completed, thereby affecting the use function of the bearing.

Patent number CN217810487U is a composite bridge movable support. The upper end of the accommodating groove plate is higher than the lower end of the upper structure vertical plate. When the upper structure cover plate slides relative to the lower structure base, the accommodating groove plate and the upper structure vertical plate form a limit. The limit distance is not accurate enough to ensure that the pre-bias is kept horizontal. Therefore, it is urgent for technical personnel to solve this problem.

Utility Model Content

In view of the above existing problems and defects, the utility model designs a bridge spherical steel pre-bias precision adjustment device.

In order to solve the above technical problems, the utility model relates to a bridge spherical steel support pre-biased precision adjustment device, including a base, a longitudinal adjustment steel, a longitudinal limit steel, a transverse limit steel, a longitudinal limit steel plate, a pre-biased transmission angle steel and a pre-biased transmission angle steel. The base is arranged on the left and right sides of the device, and the base is divided into a bearing part and a connecting part. The base limit steel plate is connected to the middle section of the base connecting part, the longitudinal adjustment steel is connected to the upper section of the base connecting part, the longitudinal limit steel is connected to the transverse limit steel plate, the transverse limit steel is connected to the longitudinal adjustment steel plate, the pre-biased transmission angle steel is installed at the head end of the longitudinal adjustment steel, and the pre-biased limit angle steel is installed at the tail end of the longitudinal adjustment steel.

Furthermore, the base includes a connecting portion and a bearing portion, and the connecting portion of the base is further provided with a connecting plate.

The setting of the connecting plate can increase the strength and stability of the base. By connecting with other structures or equipment, the connecting plate disperses and bears the load, enhances the overall rigidity and stability of the base, and reduces the risk of deformation and loosening.

Furthermore, the connecting plate is horizontally arranged in the middle section of the base connecting portion and has the same specifications as the bearing portion at the bottom of the base.

The connection plate is set in the middle section to increase the overall rigidity of the foundation, especially when the connection part bears loads over a large span. Consistent specifications can ensure that the connection plate and the load-bearing part have similar strength and stability in key aspects, provide additional support, and reduce the risk of deformation and loosening.

Furthermore, the longitudinally adjustable steel is a "T"-shaped piece, and the bottom of the longitudinally adjustable steel is connected to the top of the base connecting part by bolts.

Bolt connection makes the installation and adjustment process of longitudinal adjustable steel sections simpler and more convenient. By loosening or tightening the bolts, the position of the longitudinal adjustable steel sections can be quickly adjusted to make necessary adjustments and alignments. This saves time and workload and improves construction efficiency.

Furthermore, the transverse limiting steel is a sheet metal bending part, including a flat installation surface, a transition surface, an intermediate surface and a connecting surface. The flat installation surface is connected to the longitudinal adjustment steel through bolts, and the connecting surface is connected to the longitudinal limiting steel through bolts.

The connection surface can be detachably connected to the longitudinal limit steel by bolt connection. This allows the connection surface to be easily connected to other components or equipment, and is also convenient for adjustment and replacement. This provides flexibility and adaptability, making the connection system easier to maintain and change.

Furthermore, the pre-biased transmission angle steel is an "L"-shaped workpiece, which is divided into a pre-biased transmission angle steel connecting surface and a pre-biased transmission angle steel limiting surface. The pre-biased transmission angle steel connecting surface is connected to the head end of the longitudinal adjustment steel by bolts, and the pre-biased transmission angle steel limiting surface is also provided with screw holes; the pre-biased limiting angle steel "L"-shaped workpiece is divided into a pre-biased limiting angle steel connecting surface and a pre-biased limiting angle steel limiting surface. The pre-biased limiting angle steel connecting surface is connected to the end of the longitudinal adjustment steel by bolts.

The limit surface of the pre-biased transmission angle steel is provided with screw holes, and the position of the limit can be changed by adjusting the position of the bolts. This allows the range of the limit angle steel to be fine-tuned as needed to meet specific limit requirements. The pre-biased limit angle steel is fixed to the longitudinal adjustment steel by bolts, which can provide a good limit effect.

The beneficial effects of the utility model are:

(1) The bearing is installed on the longitudinal adjustment steel and cooperates with the longitudinal limit steel to prevent the bearing from shaking. At the same time, since the pre-bias transmission steel can adjust the pre-bias degree of the bearing by adjusting the bolts on the limit surface of the pre-bias transmission steel, the pre-bias limit steel can be used to fix the bearing after the pre-bias is adjusted well without displacement deviation, which can accurately and quickly solve the problem of large deviation between the actual pre-bias amount and the theoretical pre-bias amount, and large error between the actual pre-bias direction and the theoretical pre-bias direction of the bridge spherical steel bearing during the pre-bias adjustment process;

(2) The entire device is connected by bolts, which is convenient for disassembly and assembly, greatly improving construction efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

Fig. 1 is a perspective view of the utility model.

FIG. 2 is a schematic structural diagram of an embodiment of the utility model.

FIG3 is a front view of the utility model.

FIG. 4 is a schematic diagram of the structure of the pre-biased transmission angle steel in this embodiment.

FIG. 5 is a schematic structural diagram of the pre-biased limiting angle steel in this embodiment.

In the figure, 1-base; 11-connecting plate; 12-bearing part; 13-connecting part; 2-longitudinal adjusting steel; 3-longitudinal limit steel; 31-longitudinal base limit steel plate; 4-transverse limit steel; 41-transverse base limit steel plate; 5-pre-biased transmission angle steel; 51-pre-biased transmission angle steel connecting surface; 52-pre-biased transmission angle steel limit surface; 53-pre-biased transmission bolt; 6-pre-biased limit angle steel; 61-pre-biased limit angle steel connecting surface; 62-pre-biased limit angle steel limit surface; 7-support.

DETAILED DESCRIPTION

The following is a further detailed description of the contents of the utility model in conjunction with the accompanying drawings in the specification. Referring to Figure 1, it can be seen that a bridge spherical steel support pre-biased precise adjustment device disclosed by the utility model mainly includes a base 1 located at the bottom of the device, the base 1 is composed of a bearing part 12 and a connecting part 13, the connecting part 13 of the base 1 is welded in the middle position in the width direction of the bearing part 12 of the base 1, and the connecting plate 11 is welded in the middle position in the height direction of the connecting part 13 of the base 1, the top section of the connecting part 13 of the base 1 is provided with screw holes to connect the longitudinal adjustment steel 2, the connecting plate 11 is also provided with screw holes to connect the transverse base limiting steel plate 41 and the longitudinal base limiting steel plate 31, the transverse limiting steel 4 is connected to the longitudinal adjustment steel 2 by bolts, the pre-biased transmission angle steel 5 is installed at the head end of the longitudinal adjustment steel 2 through the pre-biased transmission angle steel connecting surface, the pre-biased transmission bolt 53 is installed on the pre-biased transmission angle steel limiting surface 52, and the pre-biased limiting angle steel 6 is installed at the tail end of the longitudinal adjustment steel 2 through the pre-biased limiting angle steel connecting surface 61.

Referring to Figures 2, 3, 4 and 5, it can be seen that when in use, the base 1 is placed on both sides of the support 7 along the support offset direction. The longitudinal adjustment steel 2 is adjusted and tightened by adjusting the bolts to make it close to the upper steel plate of the support 7, and the top surface of the longitudinal adjustment steel 2 is horizontal and reaches the relative elevation. The base limit steel plates 14 on both sides are connected to the bases 1 on both sides by bolts, and the inner side of the transverse base limit steel plate 41 is close to the bolt legs of the support 7. The longitudinal base limit steel plate 31 is connected to the transverse base limit steel plate 4 by bolts and is close to the bolt legs of the support 7. The longitudinal limit steel 3 is installed to the top plate of the longitudinal adjustment steel 2 by bolts, and the inner side of the longitudinal limit steel 3 is attached to the upper panel edge of the support 7 to ensure that the upper steel plate of the support 7 is offset along the pre-biased direction of the center line of the support 7. The longitudinal limit steel 3 is connected to the transverse limit steel 4 by bolts. After the longitudinal limit steel 3 presses the top surface of the upper panel of the support 7, the support 7 is unlocked to prevent the upper panel from floating horizontally. On the longitudinal adjustment steel 2, install the pre-bias transmission angle steel 5 by bolts at one end in the opposite direction of the pre-bias of the support 7. Before installation, unscrew the pre-bias transmission bolt 53, and make the pre-bias transmission angle steel limit surface 52 close to the side of the steel plate on the support 7. On the longitudinal adjustment steel 2, install the pre-bias limit angle steel 6 at one end in the pre-bias direction of the support 7, measure the pre-bias position by measuring tools, and fix the pre-bias limit angle steel limit surface 62 of the pre-bias limit angle steel 6 by bolts so that it is in the same section as the pre-bias position. Push the steel plate on the support 7 to the pre-bias limit angle steel limit surface 62 by twisting the pre-bias power bolt 53, and accurately adjust the pre-bias of the spherical steel support 7. After the adjustment is completed, connect and fix the upper and lower steel plates in time.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined in the present invention may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed in the present invention.

Claims (6)

1. The utility model provides a spherical steel support of bridge is accurate adjusting device of off tracking in advance, includes base, vertical regulation shaped steel, vertical spacing shaped steel, horizontal spacing shaped steel, vertical spacing steel sheet, the transmission angle steel of off tracking in advance and the transmission angle steel of off tracking in advance, its characterized in that: the base sets up in the device left and right sides, and the base divide into loading part and connecting portion, and the spacing steel sheet of base is connected base connecting portion interlude, and vertical regulation shaped steel is connected base connecting portion superordinate section, and horizontal spacing steel sheet is connected to vertical spacing shaped steel, and vertical regulation steel sheet is connected to horizontal spacing shaped steel, and the transmission angle steel of unbiasing is installed at vertical regulation shaped steel head end, and the spacing angle steel of unbiasing is installed at vertical regulation shaped steel tail end in advance.

2. The bridge spherical steel support pre-deflection accurate adjusting device according to claim 1, wherein: the base comprises a connecting part and a bearing part, and the connecting part of the base is also provided with a connecting plate.

3. The bridge spherical steel support pre-deflection accurate adjusting device according to claim 2, wherein: the connecting plate is horizontally arranged at the middle section of the base connecting part and is consistent with the specification of the bearing part at the bottom of the base.

4. The bridge spherical steel support pre-deflection accurate adjusting device according to claim 1, wherein: the longitudinal adjustment section steel is a T-shaped piece, and the bottom of the longitudinal adjustment section steel is connected with the top end of the base connecting part through a bolt.

5. The bridge spherical steel support pre-deflection accurate adjusting device according to claim 1, wherein: the transverse limiting section steel is a sheet metal bending piece and comprises a horizontally arranged mounting surface, a transition surface, a middle surface and a connecting surface; the horizontal mounting surface is connected with the longitudinal adjusting section steel through bolts, and the connecting surface is connected with the longitudinal limiting section steel through bolts.

6. The bridge spherical steel support pre-deflection accurate adjusting device according to claim 1, wherein: the pre-deflection transmission angle steel is an L-shaped workpiece and is divided into a pre-deflection transmission angle steel connecting surface and a pre-deflection transmission angle steel limiting surface, the pre-deflection transmission angle steel connecting surface is connected to the head end of the longitudinal adjustment section steel through a bolt, and the pre-deflection transmission angle steel limiting surface is also provided with a screw hole; the L-shaped workpiece of the pre-deflection limiting angle steel is divided into a pre-deflection limiting angle steel connecting surface and a pre-deflection limiting angle steel limiting surface, and the pre-deflection limiting angle steel connecting surface is connected to the position end of the longitudinal adjustment section steel through a bolt.