Pushing locking device of bridge

Abstract

The utility model provides a pushing and locking device of a bridge. The pushing and locking device comprises two pushing assemblies and a locking assembly. The two pushing assemblies are oppositely arranged on the outer surfaces of the ends of the two to-be-closed beam bodies correspondingly. Each pushing assembly comprises an anchor box and two steel channels. The anchor box is fixed on the outer surface of the beam body, a bearing plate is arranged at the outer end part of the anchor box, and an anchor backing plate is arranged on the bearing plate; the two steel channels are located on the two sides of the anchor bearing plate correspondingly, and the first end of each steel channel is fixed to the bearing plate. A jack is arranged between the two anchor bearing plates in the two pushing assemblies, and the second ends of the steel channels in the two pushing assemblies are fixedly connected through a locking assembly. According to the utility model, the pushing and temporary locking functions of the midspan section of a bridge (such as a steel box girder) can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of bridge engineering, and in particular to a jacking and locking device for a bridge. Background Art

[0002] In recent years, hybrid beam rigid frame bridges, hybrid beam low tower cable-stayed bridges and other bridge types have been continuously used in highway and railway construction. During the construction process, rigid frame bridges need to be temporarily locked before the middle span is closed, and some bridges also need to be pushed to both sides to improve the stress on the piers. For example, steel box girders are usually used in the middle section of the middle span of a hybrid bridge to reduce the weight of the middle span main beam and increase the ultimate span of the bridge structure. The pushing and locking device of the mid-span section of the bridge needs to be reasonably and reliably designed to ensure the realization of the pushing and locking functions, and to ensure the safety of the stress on the bridge itself (such as the steel box girder). Utility Model Content

[0003] In view of this, the utility model provides a bridge pushing and locking device, thereby realizing the pushing and temporary locking functions of the mid-span section of the bridge (such as a steel box girder).

[0004] The technical solution of the utility model is specifically achieved as follows:

[0005] A bridge pushing and locking device comprises: two groups of pushing components and one group of locking components;

[0006] Two groups of pushing assemblies are respectively arranged opposite to each other on the outer surfaces of the ends of the two sections of beam bodies to be joined;

[0007] Each group of jacking components includes: an anchor box and two channel steels; the anchor box is fixed on the outer surface of the beam body, a pressure plate is arranged at the outer end of the anchor box, and an anchor pad is arranged on the pressure plate; the two channel steels are respectively located on both sides of the anchor pad, and the first end of each channel steel is fixed on the pressure plate;

[0008] A jack is arranged between two anchor pads in the two groups of jacking assemblies, and the second ends of the channel steels in the two groups of jacking assemblies are fixedly connected by a locking assembly.

[0009] Preferably, the anchor box comprises: at least two vertical support plates, at least one transverse reinforcement plate and a plurality of stiffening ribs;

[0010] The vertical support plates are arranged at intervals, and the bottom end of each vertical support plate is fixedly connected to the outer surface of the beam body, and the side end thereof is fixedly connected to the pressure plate;

[0011] The transverse reinforcing plate is connected between the vertical supporting plates, and one end thereof is fixedly connected to the pressure bearing plate;

[0012] The plurality of stiffening ribs are respectively connected to the outer surface of the vertical support plate, and one end thereof is fixedly connected to the pressure plate.

[0013] Preferably, the two channel steels are symmetrically arranged on both sides of the anchor plate, and the first end of the channel steel is fixed on the outer side surface of the pressure plate.

[0014] Preferably, a gusset plate is provided at a preset position on the channel steel.

[0015] Preferably, the locking assembly comprises: four groups of transverse connecting plates, two groups of vertical connecting plates and a plurality of bolts;

[0016] The four groups of transverse connecting plates are respectively arranged on the top plates and bottom plates of the two channel steels; the two groups of vertical connecting plates are respectively arranged on the side plates of the two channel steels;

[0017] Each group of transverse connecting plates and each group of vertical connecting plates includes two connecting plates, the front end portion and the rear end portion of the two connecting plates are respectively connected to the second end of the channel steels in the two groups of pushing assemblies, and the top plate, bottom plate or side plate of the channel steel is located between the two connecting plates and fixedly connected by multiple bolts.

[0018] Preferably, a plurality of bolt holes are pre-arranged on the connecting plate and the channel steel.

[0019] Preferably, stiffening ribs are provided inside the beam body at positions where the push-locking devices are provided on the beam body.

[0020] Preferably, each channel steel comprises a plurality of channel steel sections, and the plurality of channel steel sections are fixedly connected by two sets of transverse connecting plates.

[0021] Preferably, an opening or a slot is provided at one end of the anchor box away from the channel steel.

[0022] Preferably, a gusset plate is connected to the top surface and the bottom surface of the two channel steels respectively.

[0023] As can be seen from the above, in the pushing and locking device of the bridge in the utility model, by setting two groups of pushing components, the two anchor boxes in the two groups of pushing components are respectively set on the two sections of the beam body, and a jack is set between the two anchor boxes, and the two anchor boxes are pushed by the jack, and the reaction force is transmitted through the anchor boxes, so that the pushing function of the middle span section of the bridge (such as a steel box girder) can be realized; the cantilever end of the channel steel fixed on the anchor box is fixedly connected by using the locking assembly, so that the temporary locking function of the middle span section of the bridge (such as a steel box girder) can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a layout diagram of the push-locking device in the embodiment of the utility model.

[0025] Figure 2 for Figure 1 Left view of .

[0026] Figure 3 It is a front view of the push-locking device in the embodiment of the utility model.

[0027] Figure 4 It is a top view of the push-locking device in the embodiment of the utility model.

[0028] Figure 5 for Figure 3 Cross-section at AA in the middle.

[0029] Figure 6 for Figure 3 Cross-sectional view at BB in the middle.

[0030] Figure 7 for Figure 3 Cross-sectional view at CC.

[0031] Figure 8 for Figure 3 Cross-sectional view at DD in the middle. DETAILED DESCRIPTION

[0032] In order to make the technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] like Figures 1 to 8 As shown, the utility model provides a bridge pushing and locking device, comprising: two groups of pushing components 1 and one group of locking components 2;

[0034] Two groups of pushing assemblies 1 are respectively arranged opposite to each other on the outer surfaces of the ends of two sections of beam bodies 100 to be joined;

[0035] Each group of jacking assembly 1 includes: an anchor box 11 and two channel steels 12; the anchor box 11 is fixed on the outer surface of the beam body 100, and a pressure plate 115 is provided at the outer end of the anchor box 11, and an anchor pad 116 is provided on the pressure plate 115; the two channel steels 12 are respectively located on both sides of the anchor pad 116, and the first end of each channel steel 12 is fixed on the pressure plate 115;

[0036] A jack 117 is provided between the two anchor plates 116 in the two groups of jacking assemblies 1 , and the second ends of the channel steels 12 in the two groups of jacking assemblies 1 are fixedly connected by a locking assembly 2 .

[0037] In the technical solution of the utility model, multiple bridge pushing and locking devices can be provided on the outer surfaces of the ends of the two sections of the beam body 100 to be joined (for example, multiple bridge pushing and locking devices can be provided on the top surface and the side surface of the beam body 100, respectively, such as Figure 1 and Figure 2As shown in Figure 1, multiple bridge jacking and locking devices can work together to achieve temporary jacking and locking functions in the middle span of a bridge (such as a steel box girder). Figure 3 and Figure 4 , one anchor box 11 in the two groups of jacking assemblies 1 of a jacking locking device is fixed on the top plate 101 of the first section of the beam body, and the other anchor box 11 is fixed on the top plate 102 of the second section of the beam body. At this time, the channel steels 12 in the two groups of jacking assemblies 1 are in a cantilever state. In order to improve the force on the bridge pier, the jacking of the beam body is first achieved by using the jack 117 set between the two anchor boxes, so that the two ends of the beam body are separated from each other and reach the preset position; after the beam body is pushed into place, the locking assembly is used to fix the suspended ends of the relative channel steels 12 (i.e., the second ends of the channel steels) in the two groups of jacking assemblies to each other, thereby realizing the temporary locking of the rigid frame system bridge before the mid-span joint is closed. After the locking is completed, the jack is removed, and after the construction of the joint section is completed, the locking assembly is released, the jacking locking device is removed, and then subsequent construction is carried out.

[0038] In the technical solution of the present utility model, a variety of implementation methods can be used to implement the above-mentioned bridge push locking device. The following will take one of the implementation methods as an example to introduce the technical solution of the present utility model in detail.

[0039] For example, preferably, in a specific embodiment of the present invention, Figure 5 As shown, the anchor box 11 may include: at least two vertical support plates 112, at least one transverse reinforcement plate 113 and a plurality of stiffening ribs 114;

[0040] The vertical support plates 112 are arranged at intervals, and the bottom end of each vertical support plate is fixedly connected to the outer surface of the beam body, and the side end thereof is fixedly connected to the pressure plate 115;

[0041] The transverse reinforcing plate 113 is connected between the vertical supporting plates 112, and one end thereof is fixedly connected to the pressure bearing plate;

[0042] The plurality of stiffening ribs 114 are respectively connected to the outer surface of the vertical support plate 112 , and one end thereof is fixedly connected to the pressure plate 115 .

[0043] In the technical solution of the utility model, by providing a vertical support plate, the stability of the anchor box can be improved and the connection between the anchor box and the beam body can be strengthened. By providing a transverse reinforcement plate and stiffening ribs, the strength of the anchor box can be further improved, and the reliability of the connection between the pressure plate 115 and the anchor box 11 can be improved.

[0044] For another example, preferably, in a specific embodiment of the present utility model, Figure 6 As shown, the two channel steels 12 can be symmetrically arranged on both sides of the anchor plate 116 , and the first end of the channel steel 12 is fixed to the outer surface of the pressure plate 115 .

[0045] In addition, in a preferred embodiment of the present invention, Figure 7 As shown, when the length of the channel steel is long, a gusset plate 121 can be set at a preset position on the channel steel to enhance the stability of the channel steel. For example, as an example, a gusset plate 121 is connected to the top surface and the bottom surface of the two channel steels 12 respectively.

[0046] In addition, as an example, in a preferred specific embodiment of the present utility model, as Figure 3 and Figure 8 As shown, the locking assembly 2 may include: four groups of transverse connecting plates 21, two groups of vertical connecting plates 22 and a plurality of bolts;

[0047] The four groups of transverse connecting plates 21 are respectively arranged on the top plates and bottom plates of the two channel steels 12; the two groups of vertical connecting plates 22 are respectively arranged on the side plates of the two channel steels 12;

[0048] Each group of transverse connecting plates 21 and each group of vertical connecting plates 22 include two connecting plates, the front end portion and the rear end portion of the two connecting plates are respectively connected to the second end of the channel steels in the two groups of pushing assemblies, and the top plate, bottom plate or side plate of the channel steel 12 is located between the two connecting plates and fixedly connected by multiple bolts.

[0049] Preferably, as an example, a plurality of bolt holes are pre-arranged on the connecting plate and the channel steel.

[0050] In the technical solution of the utility model, after the beam body is pushed into place, a transverse connecting plate and a vertical connecting plate are installed on the second ends of the channel steels in the two groups of pushing assemblies, and the second ends of the channel steels in the two groups of pushing assemblies are fixedly connected to the connecting plates by bolts, thereby making the second ends of the channel steels in the two groups of pushing assemblies fixedly connected, realizing the temporary locking of the rigid frame system bridge before the mid-span is closed.

[0051] In addition, as an example, in a preferred specific embodiment of the present invention, Figure 1 As shown, at the position where the push locking device is provided on the beam body, a stiffening rib 105 can be provided inside the corresponding beam body to strengthen the rigidity of the beam body and the anchor box and solve the problem of local force on the web of the beam body in the anchor box type anchoring.

[0052] In addition, as an example, in a preferred specific embodiment of the present invention, according to actual needs, when the channel steel is longer, each channel steel can include multiple channel steel sections, and the multiple channel steel sections can be fixedly connected by two groups of transverse connecting plates 21.

[0053] In addition, as an example, in a preferred specific embodiment of the present invention, Figure 4As shown, an opening or a slot can be provided at one end of the anchor box 11 away from the channel steel 12, so as to reduce the use of materials, save costs and improve economy while ensuring effectiveness.

[0054] To summarize, in the technical solution of the utility model, two groups of pushing assemblies are provided, and the two anchor boxes in the two groups of pushing assemblies are respectively provided on the two sections of the beam body, and a jack is provided between the two anchor boxes. The two anchor boxes are pushed by the jack, and the reaction force is transmitted through the anchor boxes, thereby realizing the pushing function of the middle span section of the bridge (such as a steel box girder); the cantilever end of the channel steel fixed on the anchor box is fixedly connected by using a locking assembly, thereby realizing the temporary locking function of the middle span section of the bridge (such as a steel box girder).

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A bridge push locking device, characterized in that: include: Two sets of push assemblies and one set of locking assembly; Two groups of pushing assemblies are respectively arranged opposite to each other on the outer surfaces of the ends of the two sections of beam bodies to be joined; Each group of jacking components includes: an anchor box and two channel steels; the anchor box is fixed on the outer surface of the beam body, a pressure plate is arranged at the outer end of the anchor box, and an anchor pad is arranged on the pressure plate; the two channel steels are respectively located on both sides of the anchor pad, and the first end of each channel steel is fixed on the pressure plate; A jack is arranged between two anchor pads in the two groups of jacking assemblies, and the second ends of the channel steels in the two groups of jacking assemblies are fixedly connected by a locking assembly.

2. The bridge pushing and locking device according to claim 1, characterized in that: The anchor box comprises: at least two vertical support plates, at least one transverse reinforcement plate and a plurality of stiffening ribs; The vertical support plates are arranged at intervals, and the bottom end of each vertical support plate is fixedly connected to the outer surface of the beam body, and the side end thereof is fixedly connected to the pressure plate; The transverse reinforcing plate is connected between the vertical supporting plates, and one end thereof is fixedly connected to the pressure bearing plate; The plurality of stiffening ribs are respectively connected to the outer surface of the vertical support plate, and one end thereof is fixedly connected to the pressure plate.

3. The bridge pushing and locking device according to claim 2, characterized in that: The two channel steels are symmetrically arranged on both sides of the anchor plate, and the first ends of the channel steels are fixed on the outer side surface of the pressure plate.

4. The bridge pushing and locking device according to claim 1, characterized in that: A gusset plate is provided at a preset position on the channel steel.

5. The bridge pushing and locking device according to claim 1, characterized in that: The locking assembly includes: four groups of transverse connecting plates, two groups of vertical connecting plates and a plurality of bolts; The four groups of transverse connecting plates are respectively arranged on the top plates and bottom plates of the two channel steels; the two groups of vertical connecting plates are respectively arranged on the side plates of the two channel steels; Each group of transverse connecting plates and each group of vertical connecting plates includes two connecting plates, the front end portion and the rear end portion of the two connecting plates are respectively connected to the second end of the channel steels in the two groups of pushing assemblies, and the top plate, bottom plate or side plate of the channel steel is located between the two connecting plates and fixedly connected by multiple bolts.

6. The bridge pushing and locking device according to claim 5, characterized in that: A plurality of bolt holes are pre-arranged on the connecting plate and the channel steel.

7. The bridge pushing and locking device according to claim 1, characterized in that: At the position where the push-locking device is arranged on the beam body, a stiffening rib is arranged inside the corresponding beam body.

8. The bridge pushing and locking device according to claim 1, characterized in that: Each channel steel comprises a plurality of channel steel sections, and the plurality of channel steel sections are fixedly connected by two sets of transverse connecting plates.

9. The bridge pushing and locking device according to claim 1, characterized in that: An end of the anchor box away from the channel steel is provided with an opening or a slot.

10. The bridge pushing and locking device according to claim 4, characterized in that: A gusset plate is connected to the top surface and the bottom surface of the two channel steels respectively.

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