Grouting formwork for bridge support

Abstract

The utility model discloses a grouting formwork for a bridge support. The grouting formwork comprises four formworks and four connecting pieces. A first protruding block part is arranged at one end of each formwork in the length direction, a limiting opening is formed in the other end of each formwork in the length direction, in every two adjacent formworks, the first protruding block part of one formwork is embedded into the limiting opening of the other formwork, a first connecting hole is formed in the first protruding block part, a second connecting hole communicated with the limiting opening is formed in the formwork, and a second connecting hole communicated with the limiting opening is formed in the other formwork. And the first connecting hole of one is communicated with the second connecting hole of the other one. And each connecting piece penetrates through the first connecting hole and the second connecting hole which are communicated between the two adjacent templates so as to connect the adjacent templates. According to the bridge support grouting formwork, only formworks of one structure need to be produced, the mold opening types for manufacturing the formworks are reduced, and the material cost of production is saved. And the concave-convex splicing structure among the four formworks is simple, the connecting pieces are used for fixing, the assembling structure is simple, and mounting and dismounting are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction structures, and more specifically to a bridge support grouting formwork. Background Art

[0002] The bridge bearing is an important structural component that connects the bridge superstructure and substructure. The bridge superstructure includes the beam body, and the bridge substructure includes the piers and the pad stone. The pad stone is connected to the top of the pier. The bridge bearing is located between the beam body and the pad stone and is an important force transmission device of the bridge.

[0003] The bridge bearing in the prior art is a pot-type rubber bearing, which includes an upper steel plate, a middle chassis, a lower steel plate and a lower anchor rod. The upper steel plate and the lower steel plate are respectively connected to the upper and lower sides of the middle chassis in the height direction. The upper steel plate has an upper connecting plate, and the lower steel plate has a lower connecting plate. The upper connecting plate and the lower connecting plate are fixed by anchor bolts, thereby connecting and fixing the upper steel plate, the middle chassis and the lower steel plate. The lower anchor rod is connected to the side of the lower steel plate away from the upper steel plate. The installation of the pot-type rubber bearing can be divided into two methods: cast-in-place beam pot-type bearing installation and prefabricated beam pot-type bearing installation. Among them, during the installation of the prefabricated beam basin-type support, the upper steel plate is first embedded in the beam body according to the designed position, and the surface of the cushion stone at the support position is roughened on site. The cushion stone has reserved anchor holes, and the debris and accumulated water in the anchor holes are cleared. Before the prefabricated beam body is hoisted at the construction site, the upper connecting plate and the lower connecting plate are first fixed with bolts, so that the middle chassis and the lower steel plate are fixed to the embedded upper steel plate, so that the lower anchor rod of the support is aligned with the anchor hole, and the beam is slowly lowered to the temporary support. The temporary support can be a temporary sand box supported between the upper structure and the lower structure. At this time, there is a gap between the cushion stone, the lower steel plate, the lower anchor rod and the anchor bolt hole. At this time, the bearing grouting template is installed on the cushion stone at the periphery of one peripheral edge of the lower steel plate. The grouting template is enclosed to form a casting cavity, and the casting cavity is grouted. The grouting adopts gravity grouting, and the slurry flows into the gap, so that the bearing is cast and fixed on the cushion stone. Among them, the grouting must be continuous and uninterrupted. After the grouting is finally set, the grouting template is removed to check whether there is leakage, and the leakage is promptly filled with grout, and the upper and lower connecting plates and bolts of the bearing are removed.

[0004] The grouting template in the prior art usually includes two first straight plates and two U-shaped plates. The U-shaped plate includes a second straight plate and an extension arm vertically connected to both ends of the second straight plate. During the installation of the grouting template, the two first straight plates are arranged in parallel and at intervals on the outside of the edge of the lower steel plate. The two U-shaped plates are located between the two straight plates. The first straight plate is perpendicular to the second straight plate. The extension plates are respectively attached to the first straight plates, and then the extension plates and the first straight plates are fixed with bolts. In this way, the grouting template is installed, and then the grouting operation can be carried out in the casting cavity. However, the grouting template in the prior art requires templates of two structures, and templates of two structures need to be produced. There are many types of molds required for making the templates, which increases the material cost of production. In addition, the four templates need to be fixedly connected with bolts. To install the bolts, studs need to be installed between the adjacent first straight plates and the extension plates, and then nuts need to be used to fix them. The operation is difficult and inconvenient.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The utility model provides a bridge support grouting formwork.

[0007] This application provides the following technical solutions:

[0008] A bridge bearing grouting formwork, comprising:

[0009] Four templates, one end of the template along the length direction is provided with a first convex block portion, the other end of the template along the length direction is provided with a limited opening, the four templates are arranged in sequence, the four templates enclose a casting cavity, two adjacent templates are perpendicular, the first convex block portion of one of the two adjacent templates is embedded in the limited opening of the other, the first convex block portion is provided with a first connecting hole, the template is provided with a second connecting hole connected to the limited opening, and the first connecting hole of one of the two adjacent templates is connected to the second connecting hole of the other;

[0010] Four connecting pieces, each of which is passed through a first connecting hole and a second connecting hole connected between two adjacent templates to connect the adjacent templates.

[0011] Optionally, the limiting opening is a notch provided on the width edge of the template;

[0012] Alternatively, the limiting opening is a through opening provided on the template, and the through opening has a closed peripheral side surface.

[0013] Optionally, fitting end surfaces are respectively provided on both sides of the first protruding block portion on the thickness end surface on one side of the width side of the template;

[0014] Of the two adjacent templates, the two mating end surfaces at the end of one are respectively mated to the main end surface of the other in the direction perpendicular to the thickness, and the first protruding block portion of one blocks the limiting opening of the other.

[0015] Optionally, the first convex block portion is a cube or a cuboid;

[0016] One end of the template has two second protrusions arranged at intervals, the two second protrusions are both cubes or cuboids, the limiting opening is formed between the two second protrusions, the second connecting hole is provided on the second protrusion, and the limiting opening has a flat bottom surface connecting the two second protrusions;

[0017] In two adjacent templates, the first protrusion portion of one is located between the two second protrusion portions of the other, and the first protrusion portion is respectively fitted with the surfaces of the two second protrusion portions, and the flat bottom surface is fitted with a side surface of the first protrusion portion.

[0018] Optionally, the connecting member includes a rod body and a limiting body connected to one end of the rod body;

[0019] The rod body is inserted into each of the first connecting holes and the second connecting holes that are connected, and the limiting body is limited on the surface of the template.

[0020] Optionally, the limiting body includes a pull ring.

[0021] Optionally, the limiting body is formed by bending or curving one end of the rod body.

[0022] Optionally, an external thread is provided on the rod body;

[0023] The first connecting hole and / or the second connecting hole are provided with internal threads;

[0024] The rod body is threadedly connected to the first connecting hole and / or the second connecting hole.

[0025] Optionally, only one of the second connecting holes on the second protruding block portion is provided with an internal thread;

[0026] An end of the rod body away from the limiting body is provided with an external thread.

[0027] By adopting the above technical solution, the utility model has the following beneficial effects:

[0028] The bridge support grouting formwork of the present application only needs to produce a template of one structure, which reduces the types of molds for making the template and saves the material cost of production. In addition, the concave and convex splicing structure between the four templates is simple, and the connectors are used for fixing, the assembly structure is simple, and installation and disassembly are convenient.

[0029] The specific implementation modes of the present utility model are further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0031] Figure 1 An exploded view of four templates of the bridge bearing grouting formwork provided in an embodiment of the present application;

[0032] Figure 2 A schematic structural diagram of a bridge bearing grouting formwork template provided in an embodiment of the present application, in which the limiting opening is a through opening;

[0033] Figure 3 A schematic structural diagram of four templates of a bridge bearing grouting formwork provided in an embodiment of the present application in an assembled state;

[0034] Figure 4 A cross-sectional view of a partial structure of a template for a bridge bearing grouting formwork provided in an embodiment of the present application;

[0035] Figure 5 A state diagram of the bridge bearing grouting formwork provided in an embodiment of the present application when applied to the installation of a prefabricated beam basin type bearing.

[0036] In the figure, the template 1, the first protrusion portion 11, the first connecting hole 111, the second protrusion portion 12, the second connecting hole 121, the internal thread 1211, the flat bottom surface 13, the limit opening 14, the fitting end surface 15, the connecting part 2, the rod body 22, the limit body 21, the basin-type rubber bearing 3, the upper steel plate 31, the middle chassis 32, the lower steel plate 33, the beam body 4, and the pad stone 5.

[0037] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] See also Figures 1 to 5 As shown, the embodiment of the present application provides a bridge bearing grouting formwork, comprising: four templates 1 and four connectors 2. A first convex block portion 11 is provided at one end of the template 1 along the length direction, and a limited opening 14 is provided at the other end of the template 1 along the length direction. The four templates 1 are arranged in sequence, and the four templates 1 enclose a casting cavity. Two adjacent templates 1 are perpendicular to each other. Among the two adjacent templates 1, the first convex block portion 11 of one is embedded in the limited opening 14 of the other. A first connecting hole 111 is provided on the first convex block portion 11, and a second connecting hole 121 connected to the limited opening 14 is provided on the template 1. Among the two adjacent templates 1, the first connecting hole 111 of one is connected to the second connecting hole 121 of the other. Each of the connectors 2 is penetrated through the first connecting hole 111 and the second connecting hole 121 connected between the two adjacent templates 1 to connect the adjacent templates 1. The bridge bearing grouting formwork of the present application only needs to produce a template 1 of one structure, which reduces the types of molds for making the template 1 and saves the material cost of production. The concave-convex joint structure between the four templates 1 is simple, and the connector 2 is used for fixing, so the assembly structure is simple and the installation and disassembly are convenient.

[0042] In one possible embodiment, Figure 1 As shown, the limit opening 14 may be a notch provided on the width side of the template 1. Alternatively, Figure 2 As shown, the limiting opening 14 can be a through opening provided on the template 1, and the through opening has a closed peripheral side surface. In two adjacent templates 1, the first protruding block portion 11 of one is inserted into the through opening of the other.

[0043] like Figure 1As shown, the thickness end surface on one side of the width side of the template 1 is provided with fitting end surfaces 15 on both sides of the first protruding block portion 11. Of the two adjacent templates 1, the two fitting end surfaces 15 at the end of one are respectively fitted to the main end surface of the other in the perpendicular thickness direction, and the first protruding block portion 11 of one blocks the limiting opening 14 of the other, so as to close the splicing gap between the two adjacent templates 1 and prevent slurry leakage at the splicing.

[0044] In one possible embodiment, Figure 1 As shown, the first protrusion part 11 is a cube or a cuboid. One end of the template 1 has two second protrusion parts 12 arranged at intervals, and the two second protrusion parts 12 are both cubes or cuboids. The limiting opening 14 is formed between the two second protrusion parts 12, and the limiting opening 14 can be a notch. The second protrusion part 12 is provided with the second connecting hole 121, and the first connecting hole and the second connecting hole both extend along the width direction (or height direction) of the template 1, and the limiting opening 14 has a flat bottom surface 13 connecting the two second protrusion parts 12. In two adjacent templates 1, the first protrusion part 11 of one is limited between the two second protrusion parts 12 of the other, and the first protrusion part 11 is respectively in contact with the surfaces of the two second protrusion parts 12, and the flat bottom surface 13 is in contact with one side surface of the first protrusion part 11. The side surface of the first protrusion 11 along the thickness direction is fitted to the flat bottom surface 13, so that there is no large gap between two adjacent templates 1, and there is only a very small joint seam. The joint seam is tightly matched and the slurry is not easy to leak.

[0045] In one possible embodiment, Figure 3 As shown, the connector 2 includes a rod body 22 and a limiting body 21 connected to one end of the rod body 22. The rod body 22 is inserted into each of the first connecting holes 111 and the second connecting holes 121 that are connected, and the limiting body 21 is limited to the surface of the template 1 or there is a gap between the limiting body and the template 1. The limiting body 21 can be an annular, T-shaped or L-shaped structure, which is convenient for people to grasp and apply force.

[0046] like Figure 3 As shown, the limiting body 21 includes a pull ring. The pull ring is more convenient for people to grasp and apply force.

[0047] The limiting body 21 can be formed by bending or curving one end of the rod body 22. The rod body 22 can be a metal member, and one end of the rod body 22 can be bent into a ring or an L shape, so that the rod body 22 is integrally formed, the structural strength is high, and the limiting body 21 is not easy to be broken or damaged.

[0048] In a possible implementation, the rod body 22 is provided with an external thread, the first connecting hole 111 and / or the second connecting hole 121 is provided with an internal thread 1211 , and the rod body 22 is threadedly connected to the first connecting hole 111 and / or the second connecting hole 121 . During the grouting operation, a small amount of slurry may enter the gap between two adjacent templates 1, and the slurry may partially enter the first connecting hole 111 and / or the second connecting hole 121. After the grouting is completed and the slurry solidifies, the rod body 22 is rotated, and the external thread rotates upward at the internal thread 1211 to push out the solidified slurry inside the connecting hole, so that the rod body 22 can be easily taken out, making the disassembly of the bridge bearing grouting formwork of the present application very convenient. The template 1 can be made of one of wood materials, plastic materials or metal materials, wherein, due to the structural characteristics of wood materials, it is not easy to set the internal thread 1211, and metal materials are more expensive and bulky and difficult to transport and disassemble. Preferably, plastic materials are used, which is not only convenient for setting the internal thread 1211, but also light in material, convenient for transportation and disassembly.

[0049] like Figure 4 As shown, only the second connection hole 121 on one of the second protrusions 12 is provided with an internal thread 1211, and the end of the rod body 22 away from the limiting body 21 is provided with an external thread. If the second connection holes 121 on the two second protrusions 12 are provided with internal threads 1211, the external thread of the rod body 22 needs to be rotated for a long time to pass through the second connection hole 121 on the upper second protrusion, and then rotated again to pass through the first connection hole 111, and finally the rod body 22 needs to be rotated to be threadedly connected to the second connection hole 121 on the other second protrusion. Similarly, when disassembling the rod body 22, it also needs to be rotated for a long time to rotate the rod body 22 out of the second connection holes 121 in the two second protrusions. Such a structure makes the structure complicated, and installation and disassembly are very troublesome, and time-consuming and labor-intensive. Only one of the second connection holes 121 on the second protrusion 12 is provided with an internal thread 1211. When fixing two adjacent templates 1, the end of the rod body 22 with an external thread first penetrates the second connection hole 121 on the second protrusion located at the upper part (there is no internal thread in the second connection hole 121), and then penetrates the first connection hole 111 (without internal thread). Then the rod body 22 is rotated so that the external thread is threadedly connected to the internal thread 1211 on the second connection hole 121 on the second protrusion located at the lower part. The connection structure is very stable. Similarly, when disassembling the rod body 22, it is only necessary to slightly rotate the rod body 22, and the rod body 22 can move upward and easily disengage from the internal thread 1211. After that, the connector 2 can be directly pulled out of the other second connection hole 121, so that the bridge bearing grouting formwork of the present application can be disassembled quickly and conveniently.

[0050] like Figure 5As shown, the bridge bearing grouting formwork of the present application can be used for the installation of the prefabricated beam pot-type bearing, and the pot-type rubber bearing 3 includes an upper steel plate 31, a middle chassis 32, a lower steel plate 33 and a lower anchor rod. The upper steel plate 31 and the lower steel plate 33 are respectively connected to the upper and lower sides of the middle chassis 32 in the height direction, the upper steel plate 31 has an upper connecting plate, and the lower steel plate 33 has a lower connecting plate. The upper connecting plate and the lower connecting plate are fixed by anchor bolts, so as to connect and fix the upper steel plate 31, the middle chassis 32 and the lower steel plate 33. The lower anchor rod is connected to the side of the lower steel plate 33 away from the upper steel plate 31. During the installation of the prefabricated beam basin support, the upper steel plate 31 is first embedded in the beam body 4 according to the design position, and the surface of the cushion stone 5 at the support position is roughened on site. The cushion stone 5 has a reserved anchor hole, and the debris and water in the anchor hole are removed. Before the beam body 4 of the prefabricated beam is hoisted at the construction site, the upper connecting plate and the lower connecting plate are first fixed by bolts, so that the middle chassis 32 and the lower steel plate 33 are fixed on the embedded upper steel plate 31, so that the lower anchor rod of the support is aligned with the anchor hole, and the beam is slowly lowered to the temporary support. The temporary support can be a temporary sand box supported between the upper structure and the lower structure. At this time, there is a gap between the cushion stone 5, the lower steel plate 33, the lower anchor rod and the anchor hole. At this time, the bridge support grouting membrane frame of this application is installed on the cushion stone 5 at the periphery of one peripheral edge of the lower steel plate 33.

[0051] First, the four templates 1 of the bridge bearing grouting membrane frame of the present application are enclosed on the cushion stone 5 and located on the peripheral side of the lower steel plate 33, so that the first protrusion 11 of the adjacent template 1 is embedded in the limiting opening 14 of the other, and then four connecting members 2 are respectively inserted into the first connecting holes 111 and the second connecting holes 121 that are connected between two adjacent templates 1 to connect the adjacent templates 1. The four templates 1 are enclosed to form a casting cavity, and the casting cavity is grouting by gravity. After the slurry is finally set, the connecting member 2 is rotated and pulled out, and the two adjacent templates 1 are knocked slightly to make the first protrusion 11 disengage from the limiting opening 14, so that the bridge bearing grouting membrane frame of the present application can be easily removed.

[0052] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A bridge bearing grouting formwork, characterized in that: include: Four templates, one end of the template along the length direction is provided with a first convex block portion, the other end of the template along the length direction is provided with a limited opening, the four templates are arranged in sequence, the four templates enclose a casting cavity, two adjacent templates are perpendicular, the first convex block portion of one of the two adjacent templates is embedded in the limited opening of the other, the first convex block portion is provided with a first connecting hole, the template is provided with a second connecting hole connected to the limited opening, and the first connecting hole of one of the two adjacent templates is connected to the second connecting hole of the other; Four connecting pieces, each of which is passed through a first connecting hole and a second connecting hole connected between two adjacent templates to connect the adjacent templates.

2. The bridge bearing grouting formwork according to claim 1, characterized in that: The limiting opening is a notch arranged on the width side of the template; Alternatively, the limiting opening is a through opening provided on the template, and the through opening has a closed peripheral side surface.

3. The bridge bearing grouting formwork according to claim 1, characterized in that: The thickness end surface on one side of the width side of the template is provided with fitting end surfaces on both sides of the first protruding block portion; Of the two adjacent templates, the two mating end surfaces at the end of one are respectively mated to the main end surface of the other in the direction perpendicular to the thickness, and the first protruding block portion of one blocks the limiting opening of the other.

4. The bridge bearing grouting formwork according to claim 3, characterized in that: The first convex block portion is a cube or a cuboid; One end of the template has two second protrusions arranged at intervals, the two second protrusions are both cubes or cuboids, the limiting opening is formed between the two second protrusions, the second connecting hole is provided on the second protrusion, and the limiting opening has a flat bottom surface connecting the two second protrusions; In two adjacent templates, the first protrusion portion of one is located between the two second protrusion portions of the other, and the first protrusion portion is respectively fitted with the surfaces of the two second protrusion portions, and the flat bottom surface is fitted with a side surface of the first protrusion portion.

5. The bridge bearing grouting formwork according to claim 4, characterized in that: The connecting member includes a rod body and a limiting body connected to one end of the rod body; The rod body is inserted into each of the first connecting holes and the second connecting holes that are connected, and the limiting body is limited on the surface of the template.

6. The bridge bearing grouting formwork according to claim 5, characterized in that: The limiting body includes a pull ring.

7. The bridge bearing grouting formwork according to claim 5, characterized in that: The limiting body is formed by bending or curving one end of the rod body.

8. The bridge bearing grouting formwork according to claim 5, characterized in that: The rod body is provided with an external thread; The first connecting hole and / or the second connecting hole are provided with internal threads; The rod body is threadedly connected to the first connecting hole and / or the second connecting hole.

9. The bridge bearing grouting formwork according to any one of claims 5 to 8, characterized in that: Only one second connection hole on the second protrusion portion is provided with an internal thread; An end of the rod body away from the limiting body is provided with an external thread.

Images