Spherical steel support with lateral elastic function

Abstract

The utility model discloses a spherical steel support with a lateral bouncing function. The spherical steel support comprises an upper support plate assembly, a spherical crown assembly, a plane sliding plate, a spherical sliding plate, a lateral bouncing assembly, a lateral sliding plate and a lower support plate assembly. The side elastic assembly comprises a fixing block, a fixing bolt, a plate spring and a limiting shaft. One end of the plate spring is fixedly installed between the two fixing blocks, and the other end is inserted into the upper seat plate guide rail opening. When the upper seat plate slides, the plate spring is driven to be deformed and stressed, so that the plate spring has certain rigidity in the sliding direction. When the plate spring deforms by a certain value, the elastic force is enough to overcome the friction resistance of the same bridge relative supports, so that the adjacent pier supports are driven to slide, the beam body freely and symmetrically stretches and deforms from the midspan to the two sides, and the device has the advantages of simple structure, easiness in processing and maintenance and the like. Relates to the technical field of bridge construction, and solves the problems that the manufacturing and laying process of a steel rail telescopic regulator and a curve is complicated, and the geometric shape and position of a track are difficult to maintain in operation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge construction technical field relates to bridge support technology, concretely is a kind of side elastic function's ball type steel support. BACKGROUND

[0002] Bridge support is the key component of bridge structure stress, not only bear the transmission upper load to pier, adapt to live load, temperature change, concrete shrinkage and creep and other factors, while also ensure that the actual stress condition of upper and lower structure meets the design requirements.Three-span continuous beam support conventional arrangement is in a main pier except setting fixed and transverse support, another main pier sets longitudinal and multidirectional support, outer side pier sets longitudinal and multidirectional support, it can lead to the temperature span of one side beam joint larger, expansion amount larger.In order to adapt to the deformation coordination of bridge and track, generally, the temperature span of high-speed railway concrete beam is greater than 200m, the temperature span of steel beam is greater than 100m, according to the stress requirement of track, steel rail expansion adjuster needs to be set.High-speed railway requires that track structure has high smoothness and high stability, since steel rail expansion adjuster has inherent structural unevenness, if it is added with curve login, manufacturing and laying process will be more complex, and track geometry in operation is also difficult to maintain. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in prior art is solved.For this purpose, the utility model provides a kind of side elastic function's ball type steel support, which solves the problems of the prior art, such as the inherent structural unevenness of steel rail expansion adjuster, the complexity of manufacturing and laying process of curve login, and the difficulty of maintaining track geometry in operation.

[0004] To achieve the above object, according to the first aspect of the utility model embodiment, a kind of side elastic function's ball type steel support is provided, including upper seat plate assembly, spherical crown assembly, plane slide plate, spherical surface slide plate, side elastic component, lateral slide plate and lower seat plate assembly.The plane slide plate is located between the upper seat plate assembly and the spherical crown assembly, and the spherical surface slide plate is located between the spherical crown assembly and the lower seat plate assembly;The upper seat plate assembly is slidably connected with the plane slide plate, and the plane slide plate is fixedly connected with the spherical crown assembly;The spherical crown assembly is fixedly connected with the spherical surface slide plate, and the spherical surface slide plate is slidably connected with the lower seat plate assembly;Several guide rails are opened in the side edge of the upper seat plate assembly, and the side surface of the guide rail is fixedly connected with a side stainless steel plate;The lateral slide plate is fixedly installed on the side surface of the lower seat plate assembly;

[0005] The side elastic assembly comprises a fixed block, a fixed bolt, a leaf spring and a limiting shaft; the fixed block is fixedly connected with the lower seat plate assembly through the fixed bolt, one end of the leaf spring is fixedly installed between the two fixed blocks, and the other end is inserted into a guide rail formed on the side of the upper seat plate assembly.

[0006] Preferably, the width of the leaf spring matches the width of the guide rail, so that the leaf spring and the guide rail can be clamped.

[0007] Preferably, the side stainless steel plate is attached to the lateral sliding plate.

[0008] Preferably, the limiting shaft transversely penetrates the leaf spring and the fixed block.

[0009] Preferably, the upper seat plate assembly and the lower seat plate assembly are both fixedly connected with a plurality of anchoring assemblies; the anchoring assemblies are fixedly connected with steel beams.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] The side elastic assembly comprises a fixed block, a fixed bolt, a leaf spring and a limiting shaft. The leaf spring is fixedly limited by the limiting shaft, one end of the leaf spring is fixedly installed between the two fixed blocks, and the other end is inserted into an opening of an upper seat plate guide rail. When the upper seat plate slides, the leaf spring is deformed and stressed, so that the sliding direction has a certain rigidity.

[0012] Under the action of static load, the structural system remains stable, and the static friction of the whole connecting support is sufficient to overcome the braking force of the train on the bridge, so that the support has no displacement. The displacement of the sliding surface is at the bottom and remains horizontal, and the slope requirement of the beam body is met.

[0013] Under the action of temperature, the beam body freely expands and deforms, and under the constraint action of the elastic supports on both sides of the main pier, the beam body freely and symmetrically expands and deforms from the midspan to both sides, the temperature expansion zero point is locked at the midspan of the midspan, and the expansion and deformation of the temperature span and the beam end are reduced.

[0014] The longitudinal fixed supports are not arranged on the whole bridge, the longitudinal elastic supports are arranged on the main piers to form a constraint system, the beam body is symmetrically contracted, the temperature span is reduced, the purpose of not arranging the track expansion adjuster is achieved, and the engineering cost and the later maintenance cost are saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a sectional view of the utility model;

[0016] Figure 2 It is a sectional view of the utility model;

[0017] Figure 3 It is an enlarged schematic view of A of the utility model. Figure 2 It is an enlarged schematic view of A of the utility model.

[0018] In the diagram: 1. Upper seat plate assembly; 2. Flat sliding plate; 3. Spherical crown assembly; 4. Spherical sliding plate; 5. Lower seat plate assembly; 6. Fixing block; 7. Fixing bolt; 8. Leaf spring; 9. Limiting shaft; 10. Side stainless steel plate; 11. Lateral sliding plate; 12. Anchoring assembly. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] like Figures 1-3 As shown, a spherical steel support with a side-spring function includes an upper seat plate assembly 1, a spherical crown assembly 3, a flat sliding plate 2, a spherical sliding plate 4, a side-spring assembly, a lateral sliding plate 11, and a lower seat plate assembly 5. The flat sliding plate 2 is located between the upper seat plate assembly 1 and the spherical crown assembly 3, and the spherical sliding plate 4 is located between the spherical crown assembly 3 and the lower seat plate assembly 5. The upper seat plate assembly 1 is slidably connected to the flat sliding plate 2, and the flat sliding plate 2 is fixedly connected to the spherical crown assembly 3. The spherical crown assembly 3 is fixedly connected to the spherical sliding plate 4, and the spherical sliding plate 4 is slidably connected to the lower seat plate assembly 5. Several guide rails are opened on the side of the upper seat plate assembly 1, and a side stainless steel plate 10 is fixedly connected to the side of the guide rails. The lateral sliding plate 11 is fixedly installed on the side of the lower seat plate assembly 5. The side stainless steel plate 10 and the lateral sliding plate 11 form a guiding sliding friction pair, which plays a limiting and guiding role.

[0021] The side elastic assembly is installed at both ends of the lower seat plate assembly 5 in pairs and symmetrically throughout the device, and comprises a fixing block 6, a fixing bolt 7, a leaf spring 8 and a limiting shaft 9; the fixing block 6, the fixing bolt 7 and the leaf spring 8 are consistent in number with the guide rails; the fixing block 6 is fixedly connected with the lower seat plate assembly 5 through the fixing bolt 7, one end of the leaf spring 8 is fixedly installed between the two fixing blocks 6, and the other end is inserted into the guide rail opened at the side edge of the upper seat plate assembly 1; the width of the leaf spring 8 matches the width of the guide rail, so that the leaf spring 8 and the guide rail can be clamped; the limiting shaft 9 transversely penetrates through the leaf spring 8 and the fixing block 6, and plays a limiting and fixing role. The above settings jointly form a constraint system, so that the beam body is symmetrically contracted, the structural system remains stable under the action of static load, the static friction of the whole connection support is sufficient to overcome the braking force of the train on the bridge, and the support remains without displacement. The slope requirement of the beam body is met. Under the action of temperature, the beam body freely and symmetrically deforms from the mid-span of the mid-span to the two sides under the constraint of the elastic support on the two sides of the main pier, the temperature expansion zero point is locked at the mid-span of the mid-span, and the expansion deformation of the temperature span and the beam end is reduced. The upper seat plate assembly 1 and the lower seat plate assembly 5 are fixedly connected with a plurality of anchoring assemblies 12 on the surfaces; the anchoring assemblies 12 are fixedly connected with a steel beam, and the anchoring assemblies 12 are arranged to enable the upper seat plate assembly 1, the lower seat plate assembly 5 and the steel beam to work together to bear various stresses.

[0022] The working principle of the utility model is as follows:

[0023] The fixing bolt 7 fixes the fixing block 6 on the lower seat plate, one end of the leaf spring 8 is fixedly connected between the two fixing blocks 6, and the other end is inserted into the opening of the upper seat plate guide rail and clamped with the upper seat plate assembly 1; when the upper seat plate assembly 1 slides, the leaf spring 8 will be deformed under stress, so that it has a certain rigidity in the sliding direction. When the leaf spring 8 is deformed by a certain value, the elastic force is sufficient to overcome the frictional resistance of the relative support of the bridge, so as to drive the adjacent pier support to slide, realize the free and symmetric expansion deformation of the beam body from the mid-span of the mid-span to the two sides, lock the temperature expansion zero point at the mid-span of the mid-span, and reduce the expansion deformation of the temperature span and the beam end.

[0024] The above embodiments are only used to illustrate the technical method of the utility model and not to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A spherical steel support having a side spring function, characterized by, The utility model provides a seat, including upper seat plate component (1), spherical crown component (3), plane slide plate (2), spherical surface slide plate (4), side spring component, lateral slide plate (11) and lower seat plate component (5), the plane slide plate (2) is located between the upper seat plate component (1) and the spherical crown component (3), the spherical surface slide plate (4) is located between the spherical crown component (3) and the lower seat plate component (5), the upper seat plate component (1) is connected with the plane slide plate (2) slidingly, the plane slide plate (2) is fixedly connected with the spherical crown component (3), the spherical crown component (3) is fixedly connected with the spherical surface slide plate (4), the spherical surface slide plate (4) is connected with the lower seat plate component (5) slidingly, the upper seat plate component (1) side edge has a plurality of guide rails, the guide rail side surface is fixedly connected with side stainless steel plate (10), the lower seat plate component (5) side surface is fixedly installed with lateral slide plate (11), The side spring component includes fixed block (6), fixed bolt (7), leaf spring (8) and limiting shaft (9), the fixed block (6) is fixedly connected with the lower seat plate component (5) through the fixed bolt (7), one end of the leaf spring (8) is fixedly installed between two fixed blocks (6), and the other end is inserted into the guide rail of the upper seat plate component (1) side edge.

2. The spherical steel support with side-spring function according to claim 1, characterized in that, The width of the leaf spring (8) matches the width of the guide rail.

3. The spherical steel support with side spring function according to claim 1, characterized in that, The side stainless steel plate (10) is attached to the lateral slide plate (11).

4. The spherical steel support with side spring function according to claim 1, characterized in that, The limiting shaft (9) transversely passes through the leaf spring (8) and the fixed block (6).

5. The spherical steel support with side spring function according to claim 1, characterized in that, The upper seat plate component (1) and the lower seat plate component (5) are fixedly connected with a plurality of anchoring components (12) on surfaces, and the anchoring components (12) are fixedly connected with steel beams.

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