CN219342885U - Bridge pier top swivel device erected on capping beam - Google Patents

Abstract

The utility model relates to the technical field of bridges, and provides a bridge pier top swivel device erected on a capping beam, which comprises: the spherical hinge mechanism is arranged on the cover beam, and the steel truss beam of the bridge is erected on the spherical hinge mechanism; the circular slideway steel beam is arranged on the cover beam around the spherical hinge mechanism; the detachable support is erected below the circular slideway steel beam and is used for supporting the circular slideway steel beam and the cover beam; the auxiliary rotating structure is arranged on the circular slideway steel beam and used for moving along the circular slideway steel beam, the auxiliary rotating structure is provided with a limiting protruding part, the limiting protruding part extends towards the outer side of the circular slideway steel beam, and the steel truss girder is erected on the auxiliary rotating structure and detachably connected with the auxiliary rotating structure; and the horizontal counterforce seat is arranged on the bent cap and is used for pushing and pulling the limiting protruding part.

Description

Bridge pier top swivel device erected on capping beam

Technical Field

The utility model relates to the technical field of bridges, in particular to a bridge pier top swivel device erected on a bent cap.

Background

In the prior art, the steel truss girder bridge is a structural form of a solid steel plate girder bridge according to a certain rule and a hollow mode, and the structure is a girder stress mode as a whole so as to bear bending moment and shearing force. Comprises a bridge deck, a support, a bridge pier and the like.

In addition, with the continuous acceleration of social development, higher requirements are put on the construction of the steel truss bridge, wherein most prominently, new steel truss bridges are often erected at important traffic nodes, and the construction process of the steel truss bridge is required to have little influence on the important traffic nodes. At this time, the steel truss bridge is combined with the swivel bridge to realize the conversion of the operation above the obstacle into the operation on the shore or near the ground, thereby ensuring the steel truss bridge to be built as early as possible.

However, as steel girder bridges generally adopt capping beams as bridge body supports; accordingly, the bridge body needs to be constructed on the bent cap in a turning way, the bent cap is limited in size, the steel truss is large in size, and the supporting stability of the steel truss in the turning process is poor.

Disclosure of Invention

The utility model aims to solve the technical problem that the support stability of the steel truss girder is poor easily in the process of erecting the existing steel truss girder bridge on a bent cap for rotating.

In order to solve the above problems, the present utility model provides a bridge pier top swivel device erected on a capping beam, comprising:

the spherical hinge mechanism is arranged on the cover beam, and the steel truss beam of the bridge is erected on the spherical hinge mechanism;

the circular slideway steel beam is arranged on the cover beam around the spherical hinge mechanism;

the detachable support is erected below the circular slideway steel beam and is used for supporting the circular slideway steel beam and the cover beam;

the auxiliary rotating structure is arranged on the circular slideway steel beam and used for moving along the circular slideway steel beam, the auxiliary rotating structure is provided with a limiting protruding part, the limiting protruding part extends towards the outer side of the circular slideway steel beam, and the steel truss girder is erected on the auxiliary rotating structure and detachably connected with the auxiliary rotating structure; and

the horizontal counterforce seat is arranged on the bent cap and is used for pushing and pulling the limiting protruding portion so as to drive the auxiliary rotating structure to move along the circular slideway steel beam.

Optionally, the detachable support is a cylindrical support, and the spherical hinge mechanism is arranged on the central axis of the detachable support.

Optionally, the detachable support includes:

the steel pipe stand columns are detachably arranged around the spherical hinge mechanism;

the distribution beams are detachably arranged at the tops of the steel pipe upright posts in a one-to-one correspondence manner, and the circular ring slideway steel beams are padded on the distribution beams; and

the cross brace connecting system is detachably connected with the steel pipe stand columns respectively.

Optionally, the horizontal counter-force seat is a jack counter-force seat, the flexible end level of horizontal counter-force seat sets up, the flexible end of horizontal counter-force seat is used for the push-and-pull spacing bellying.

Optionally, the auxiliary rotating structure is a box structure spliced by steel plates.

Optionally, the auxiliary rotating structure includes:

the box body is strip-shaped and extends along an arc line of the circular slideway steel beam;

the support feet are arranged at the bottom of the box body, are arranged on the circular slideway steel beam and are used for moving along the circular slideway steel beam; and

the rib plate is arranged at the concave arc of the box body and connected with the side wall of the box body, and the rib plate extends from one end of the box body to the other end of the box body.

The bridge pier top swivel device of claim, wherein the box is detachably connected to the bottom surface of the steel truss girder by high-strength bolts.

Optionally, the steel truss is hollow structure's square body support, a plurality of straight flange of steel truss bottom surface set up respectively ring slide girder steel top, supplementary revolution mechanic is a plurality of, a plurality of straight flanges of steel truss bottom surface with be provided with correspondingly between the ring slide girder steel supplementary revolution mechanic, horizontal counter-force seat is a plurality of and one-to-one with corresponding supplementary revolution mechanic spacing bellying corresponds the setting.

Optionally, the spherical hinge mechanism is two and is the interval setting along the length direction of bent cap, ring slide girder steel detachable support, auxiliary rotating structure with horizontal counter-force seat is two sets of and respectively with corresponding spherical hinge mechanism one-to-one sets up.

Optionally, the bridge pier top swivel device further includes a plurality of pier top beam falling preventing stop blocks, the plurality of pier top beam falling preventing stop blocks are arranged on the capping beam and around the spherical hinge mechanism, the surface of each pier top beam falling preventing stop block facing the spherical hinge mechanism is an arc surface, and the pier top beam falling preventing stop blocks and the spherical hinge mechanism are arranged at intervals;

the spherical hinge mechanism comprises an upper spherical hinge and a lower spherical hinge, the upper spherical hinge is connected with the steel truss, the lower spherical hinge is arranged on the capping beam, and the upper spherical hinge is suitable for rotating relative to the lower spherical hinge.

Compared with the prior art, the utility model has the following technical effects:

before the steel truss beam is turned, the detachable support is erected below the circular slideway steel beam, particularly the bent cap is arranged at the center of the detachable support, and then the circular slideway steel beam is erected on the detachable support and the bent cap. Thereby guaranteeing the overall stability of the circular slideway steel beam and the spherical hinge mechanism. On this basis, with supplementary revolution mechanic setting on ring slide girder steel to make spacing bellying stretch out towards ring slide girder steel outside, set up horizontal counter-force seat on the bent cap, thereby make horizontal counter-force seat can push and pull spacing bellying, realize the rotation drive and the control to the steel truss girder. Meanwhile, the auxiliary rotating structure is detachably connected with the steel truss frame, so that preparation is made for subsequent rotation. And the areas of the detachable support and the circular slideway steel beam can be correspondingly increased or reduced along with the requirements of the steel truss, thereby meeting the requirement of effectively supporting the steel truss in the turning process.

Then the steel truss girder of the bridge is rotated, the whole bridge can be rotated in the process, the bridge can be rotated by taking the steel truss girder as a section of bridge, and the supporting area of the circular slideway steel girder in the rotating process is increased by utilizing the detachable support and the auxiliary rotating structure in the process.

Thus, the effective supporting area of the bent cap below the steel truss bridge is increased; the original bent cap is changed from a rectangular supporting area with a limited area into a rotary supporting space which can correspondingly increase the circular slideway steel beam and the auxiliary rotary structure according to the volume requirement of the steel truss, thereby ensuring the supporting stability of the steel truss in the rotary process. After the swivel is completed, the auxiliary rotating structure is detached from the steel truss girder, then the part of the circular slideway steel girder extending out of the capping girder is cut and removed, and the spherical hinge mechanism is fixed to prevent the steel truss girder from rotating relative to the capping girder; and then the detachable support is dismantled, so that only the support of the capping beam on the steel truss beam is reserved, and the bridge pier top swivel device is prevented from occupying too large space. Therefore, the technical problem that the support stability of the steel truss is poor easily occurs in the rotating process of the traditional steel truss bridge erected on the bent cap is effectively solved.

Drawings

FIG. 1 is a schematic side view of a bridge pier top swivel arrangement of the present utility model;

fig. 2 is a schematic top view of the bridge pier top swivel device of the present utility model.

Reference numerals illustrate: 100. a spherical hinge mechanism; 200. circular slideway steel beam; 300. a capping beam; 400. steel truss girder; 500. a horizontal counterforce seat; 610. a steel pipe column; 620. a distribution beam; 630. a cross brace connection system; 710. a case; 720. supporting feet; 730. rib plates; 740. a limit protruding part; 810. pier top beam falling prevention stop block.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, the descriptions of the terms "embodiment," "one embodiment," and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or illustrated embodiment of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same examples or implementations. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or implementations.

In the drawings of the specification, the Z axis represents the vertical direction, that is, the up-down direction, and the positive direction of the Z axis (that is, the arrow of the Z axis points) represents the negative direction of the Z axis (that is, the direction opposite to the positive direction of the Z axis); the Y-axis in the drawings represents the direction along the length of the capping beam; the X axis in the drawing shows the length direction perpendicular to the capping beam; it should also be noted that the foregoing Z-axis, Y-axis, and X-axis are meant to be illustrative only and not indicative or implying that the apparatus or component in question must be oriented, configured or operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Referring to fig. 1 and 2, to solve the above technical problems, this embodiment provides a bridge pier top rotator device erected on a capping beam 300, including:

the spherical hinge mechanism 100 is arranged on the cover beam 300, and the steel truss 400 of the bridge is erected on the spherical hinge mechanism 100;

the circular slideway steel beam 200 is arranged on the cover beam 300 around the spherical hinge mechanism 100;

the detachable support is erected below the circular slide rail steel beam 200 and is used for supporting the circular slide rail steel beam 200 and the cover beam 300;

the auxiliary rotating structure is arranged on the circular slideway steel beam 200 and is used for moving along the circular slideway steel beam 200, the auxiliary rotating structure is provided with a limiting protruding part 740, the limiting protruding part 740 extends towards the outer side of the circular slideway steel beam 200, and the steel truss 400 is erected on the auxiliary rotating structure and is detachably connected; and

the horizontal counterforce seat 500 is arranged on the capping beam 300, and the horizontal counterforce seat 500 is used for pushing and pulling the limiting protruding portion 740 so as to drive the auxiliary rotating structure to move along the circular slideway steel beam 200.

The spherical hinge mechanism 100 herein includes an upper spherical hinge connected with the steel truss 400, and a lower spherical hinge provided on the capping beam 300, the upper spherical hinge being adapted to rotate relative to the lower spherical hinge.

In addition, it should be noted that, in the present embodiment, the spherical hinge mechanism 100 may be two or more, because the capping beam 300 has a longer length, a plurality of steel truss beams 400 are often erected on one capping beam 300, and accordingly, a plurality of steel truss beams 400 are required to be synchronously rotated.

Before the steel truss 400 is turned, a detachable bracket is erected under the circular slide steel girder 200, particularly, the bent cap 300 is disposed at the center of the detachable bracket, and then the circular slide steel girder 200 is erected on the detachable bracket and the bent cap 300. Thereby ensuring the overall stability of the circular slide steel beam 200 and the spherical hinge mechanism 100. On this basis, the auxiliary rotating structure is arranged on the circular slide steel girder 200, the limiting protruding portion 740 extends towards the outer side of the circular slide steel girder 200, and the horizontal counter-force seat 500 is arranged on the bent cap 300, so that the horizontal counter-force seat 500 can push and pull the limiting protruding portion 740, and the rotation driving and control of the steel truss 400 are realized. Meanwhile, the auxiliary rotating structure is detachably connected with the steel truss 400 frame, so that preparation is made for subsequent rotation. And, the area of the detachable support and the circular slideway steel beam 200 can be correspondingly increased or reduced along with the requirement of the steel truss 400, thereby meeting the effective support of the steel truss 400 in the rotating process.

Then, the steel truss 400 of the bridge is rotated, which can be the rotation of the whole bridge in the process, or the rotation of a section of bridge taking the steel truss 400 as the center, and in the process, the support area of the circular slideway steel girder 200 in the rotation process is increased by utilizing the detachable support, namely, the diameter of the circular slideway steel girder 200 can be adjusted along with the size of the steel truss 400.

Thus, the effective support area under the steel truss 400 is increased; the original rectangular supporting area with a limited area only adopting the bent cap 300 is changed into a rotating body supporting space which can correspondingly increase the circular slideway steel girder 200 and the auxiliary rotating structure according to the volume requirement of the steel truss 400, thereby ensuring the supporting stability of the steel truss 400 in the rotating body process. After the swivel is completed, the auxiliary rotating structure is detached from the steel truss 400 frame, then the part of the circular ring slideway steel beam 200 extending out of the bent cap 300 is cut and removed, the spherical hinge mechanism 100 is fixed, the steel truss 400 is prevented from rotating relative to the bent cap 300, and then the detachable support is removed, so that only the support of the bent cap 300 to the steel truss 400 is reserved, and the bridge pier top swivel device in the embodiment is prevented from occupying too large space. Thereby effectively solving the technical problems that the support stability of the steel truss 400 is poor easily in the process of erecting the bridge of the existing steel truss 400 on the bent cap 300 for rotating.

Referring to fig. 1 and 2, further, the detachable support is a cylindrical detachable support, and the capping beam 300 is disposed at the center of the detachable support.

The detachable support of the cylinder is uniformly stressed and can form effective support for the circular slideway steel beam 200.

Referring to fig. 1 and 2, further, the detachable bracket includes:

a plurality of steel pipe columns 610 detachably arranged around the spherical hinge mechanism 100;

the plurality of distribution beams 620 are detachably arranged at the top of the steel pipe upright column 610 in a one-to-one correspondence manner, and the circular slideway steel beams 200 are padded on the distribution beams 620; and

the cross brace connection system 630 is detachably connected to the plurality of steel pipe columns 610.

The detachable support is simple in structure and only consists of a plurality of steel pipe upright posts 610, a plurality of distribution beams 620 and a cross brace connecting system 630, and the whole detachable support is convenient to detach and mount on the premise of ensuring effective support of the circular slideway steel beam 200.

Referring to fig. 1 and 2, further, the horizontal reaction seat 500 is a jack reaction seat, the telescopic end of the horizontal reaction seat 500 is horizontally disposed, and the telescopic end of the horizontal reaction seat 500 is used for pushing and pulling the limiting boss 740.

The stability of rotation control of the steel truss 400 in the rotation process is ensured by utilizing the characteristic of strong push-pull stability of the telescopic end of the jack counter-force seat.

Referring to fig. 1 and 2, further, the auxiliary rotating structure is a box structure formed by splicing steel plates.

The characteristics of strong supporting capability of the box body structure spliced by the steel plates are utilized, effective supporting of the steel truss 400 is guaranteed, and meanwhile, the characteristics of rapid splicing of the steel plates on site are utilized, so that the auxiliary rotating structure can be rapidly prepared on the construction site according to requirements, and the manufacturing efficiency of the auxiliary rotating structure is improved.

Referring to fig. 1 and 2, further, the auxiliary rotating structure includes:

the box 710 is long and extends along the arc of the circular slideway steel beam 200;

the supporting feet 720 are arranged at the bottom of the box body 710, the supporting feet 720 are arranged on the circular slideway steel beam 200, and the supporting feet 720 are used for moving along the circular slideway steel beam 200; and

the rib plate 730 is disposed at the concave arc of the case 710, the rib plate 730 is connected to the sidewall of the case 710, and the rib plate 730 extends from one end of the case 710 to the other end thereof.

The rib plates 730 are arranged at the concave arc of the box 710 and connected with the side wall of the box 710, and extend from one end of the box 710 to the other end thereof, so that the structural strength of the box 710 is improved, meanwhile, the box 710 is long-strip-shaped and extends along the arc of the circular slideway steel beam 200, and a plurality of supporting feet 720 are arranged at the bottom of the box 710; the whole auxiliary rotating structure provides stable support for the steel truss 400 in the rotating process.

Referring to fig. 1 and 2, further, the box 710 is detachably coupled to the bottom surface of the steel girder 400 by high-strength bolts. Ensuring that the box 710 is reliably connected to the bottom surface of the steel truss 400.

Referring to fig. 1 and 2, further, the steel truss 400 is a square bracket with a hollow structure, a plurality of straight edges on the bottom surface of the steel truss 400 are respectively arranged above the circular slideway steel beam 200, a plurality of auxiliary rotating structures are arranged, corresponding auxiliary rotating structures are arranged between the plurality of straight edges of the steel truss 400 and the circular slideway steel beam 200, and the horizontal counter-force seats 500 are arranged in a plurality of limit protruding parts 740 corresponding to the corresponding auxiliary rotating structures in a one-to-one correspondence manner.

Four bottom corners of the steel truss 400 are respectively arranged above the circular slideway steel beam 200, a plurality of auxiliary rotating structures are arranged, corresponding auxiliary rotating structures are arranged between the bottom corners of the steel truss 400 and the circular slideway steel beam 200, and the force transmission reliability of the supporting feet 720 during rotation of the truss type hollow structure is improved.

Referring to fig. 1 and 2, further, the spherical hinge mechanisms 100 are two and are arranged at intervals along the length direction of the cover beam 300, and the circular slide steel beam 200, the detachable support, the auxiliary rotating structure and the horizontal counter-force seat 500 are two and are arranged in one-to-one correspondence with the corresponding spherical hinge mechanisms 100.

As shown in fig. 2, for the case that two steel trusses 400 rotate synchronously, two spherical hinge mechanisms 100 are used together, and two circular slide steel beams 200, two detachable brackets, two auxiliary rotating structures and two horizontal reaction seats 500 are arranged in one-to-one correspondence with the corresponding spherical hinge mechanisms 100. Thereby ensuring that the two steel trusses 400 rotate synchronously and stably. It should be noted that fig. 1 shows a schematic side view structure of a spherical hinge mechanism 100, a circular slide steel beam 200, a detachable bracket, an auxiliary rotating structure, and a horizontal reaction seat 500 for a turning motion of a steel truss 400. Fig. 2 is a schematic top view of the spherical hinge mechanism 100, the circular slide steel beam 200, the detachable bracket, the auxiliary rotating structure and the horizontal reaction seat 500 for the swivel motion of the two steel trusses 400.

Referring to fig. 1 and 2, further, the bridge pier top swivel device further includes a plurality of pier top beam falling preventing stoppers 810, the plurality of pier top beam falling preventing stoppers 810 are disposed on the capping beam and around the spherical hinge mechanism 100, a surface of each pier top beam falling preventing stopper 810 facing the spherical hinge mechanism 100 is an arc surface, and the pier top beam falling preventing stoppers 810 are disposed at intervals from the spherical hinge mechanism 100.

The plurality of pier top beam falling prevention stoppers 810 are utilized to prevent the upper spherical hinge from deviating relative to the lower spherical hinge in the rotation process, thereby playing a role in guiding the upper spherical hinge and the lower spherical hinge.

Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. A bridge pier top swivel device erected on a capping beam, comprising:

the spherical hinge mechanism (100) is arranged on the capping beam (300), and a steel truss beam (400) of the bridge is erected on the spherical hinge mechanism (100);

the circular slideway steel beam (200) is arranged on the cover beam (300) around the spherical hinge mechanism (100);

the detachable support is erected below the circular slideway steel beam (200) and is used for supporting the circular slideway steel beam (200) and the cover beam (300);

the auxiliary rotating structure is arranged on the circular slideway steel beam (200) and used for moving along the circular slideway steel beam (200), the auxiliary rotating structure is provided with a limiting protruding portion (740), the limiting protruding portion (740) protrudes towards the outer side of the circular slideway steel beam (200), and the steel truss (400) is erected on the auxiliary rotating structure and detachably connected with the auxiliary rotating structure; and

the horizontal counter-force seat (500) is arranged on the bent cap (300), and the horizontal counter-force seat (500) is used for pushing and pulling the limiting protruding portion (740) so as to drive the auxiliary rotating structure to move along the circular slideway steel beam (200).

2. The bridge pier top swivel device according to claim 1, wherein the detachable support is a cylindrical support, and the spherical hinge mechanism (100) is disposed on a central axis of the detachable support.

3. The bridge pier top swivel device of claim 2, wherein the detachable bracket comprises:

a plurality of steel pipe columns (610) detachably arranged around the spherical hinge mechanism (100);

the distribution beams (620) are detachably arranged at the top of the steel pipe upright post (610) in a one-to-one correspondence manner, and the circular slideway steel beams (200) are padded on the distribution beams (620); and

and a cross brace connection system (630) detachably connected with the plurality of steel pipe columns (610) respectively.

4. The bridge pier top swivel device according to claim 1, wherein the horizontal reaction seat (500) is a jack reaction seat, the telescopic end of the horizontal reaction seat (500) is horizontally arranged, and the telescopic end of the horizontal reaction seat (500) is used for pushing and pulling the limiting boss (740).

5. The bridge pier top swivel device of claim 1, wherein the auxiliary rotating structure is a steel plate spliced box structure.

6. The bridge pier top swivel device of claim 1, wherein the auxiliary rotating structure comprises:

the box body (710) is long and extends along an arc of the circular slideway steel beam (200);

the supporting feet (720) are arranged at the bottom of the box body (710), the supporting feet (720) are arranged on the circular slideway steel beam (200), and the supporting feet (720) are used for moving along the circular slideway steel beam (200); and

the rib plate (730) is arranged at the concave arc of the box body (710), the rib plate (730) is connected with the side wall of the box body (710), and the rib plate (730) extends from one end of the box body (710) to the other end of the box body.

7. The bridge pier top swivel device according to claim 6, wherein the box (710) is detachably connected to the bottom surface of the steel girder (400) by means of high-strength bolts.

8. The bridge pier top swivel device according to claim 6, wherein the steel truss beam (400) is a square bracket with a hollow structure, a plurality of straight edges of the bottom surface of the steel truss beam (400) are respectively arranged above the circular slideway steel beam (200), a plurality of auxiliary rotating structures are provided, a corresponding auxiliary rotating structure is arranged between the plurality of straight edges of the bottom surface of the steel truss beam (400) and the circular slideway steel beam (200), and the horizontal counter-force seats (500) are provided in a plurality of and one-to-one correspondence manner with the limiting protruding portions (740) of the corresponding auxiliary rotating structure.

9. The bridge pier top swivel device according to any one of claims 1 to 8, wherein the spherical hinge mechanisms (100) are two and are arranged at intervals along the length direction of the capping beam (300), and the annular slide steel beam (200), the detachable support, the auxiliary rotating structure and the horizontal counter-force seat (500) are two groups and are respectively arranged in one-to-one correspondence with the corresponding spherical hinge mechanisms (100).

10. The bridge pier top swivel device according to any one of claims 1-8, further comprising a plurality of pier top anti-drop beam stoppers (810), wherein a plurality of pier top anti-drop beam stoppers (810) are arranged on the capping beam (300) and around the spherical hinge mechanism (100), the surface of each pier top anti-drop beam stopper (810) facing the spherical hinge mechanism (100) is an arc surface, and the pier top anti-drop beam stoppers (810) are arranged at intervals from the spherical hinge mechanism (100);

the spherical hinge mechanism (100) comprises an upper spherical hinge and a lower spherical hinge, the upper spherical hinge is connected with the steel truss beam (400), the lower spherical hinge is arranged on the cover beam (300), and the upper spherical hinge is suitable for rotating relative to the lower spherical hinge.

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