A wet joint construction template structure for overpass engineering

Abstract

The present invention discloses a wet joint construction template structure for an overpass project, comprising a bottom template located at the bottom of poured concrete and a suspension portion for limiting the bottom template, the suspension portion comprising a support tube, a V-shaped movable splint, an adjustment rod, a side support shaft, and a middle partition, the two ends of the support tube being hingedly connected to the tip of each V-shaped movable splint, the open end of the V-shaped movable splint being connected via an adjustment rod, the adjustment rod being used to adjust the opening size of the V-shaped movable splint, a socket being separable from the side support shaft being provided on one side of each diagonal rod on the V-shaped movable splint, a support rod being fixedly provided on the diagonal rod and parallel to the support tube, the support rod being located between the free end of the diagonal rod and the socket. The present invention has the advantages of making it easier to position and connect the bottom template with the bridge, easier to disassemble the suspension portion that fixes the bottom template, and improved sealing of the end faces of the bottom template and the bridge.

Description

Technical Field

[0001] The invention relates to the technical field of wet joints of bridge butt joints, and in particular to a wet joint construction template structure for an overpass engineering project. Background Art

[0002] With the rapid development of social economy and the continuous progress of transportation construction, highway bridge construction has also flourished. Many road and bridge construction technologies will have a certain impact on the construction quality of highway bridges. However, after the bridge is erected, concrete needs to be poured at the wet joints between adjacent beams. At this time, wet joint construction templates will be used.

[0003] At present, the formwork structure used for wet joints mainly includes a bottom formwork and a hanging component, wherein the bottom formwork is usually located at the bottom of the joint, and the hanging component fixes the bottom formwork at the joint of the bridge. In order to improve the strength of the formwork support, a large number of hanging components are usually arranged between the formwork and the bridge. The hanging components are mostly screw structures and are scattered in position. Therefore, this formwork structure still has some shortcomings: 1. There are many hanging components involved, and most of them are installed by manual screw connection, which has the disadvantage of low efficiency in bottom formwork installation and positioning; 2. After the wet joint is poured, the hanging component is fixed by concrete and difficult to disassemble. The hanging component that is not disassembled will reduce the performance of the poured concrete; 3. Different wet joints have different widths. The existing bottom formwork is of fixed specifications and has poor applicability. Poor applicability makes it easy for the gap between the bottom formwork and the joint to be too large, that is, it is easy for pouring to leak.

[0004] To this end, the present invention provides a wet joint construction template structure for an overpass engineering project. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the prior art of low efficiency in docking the bottom formwork and the wet joint, inconvenient disassembly of the suspension assembly for fixing the bottom formwork, and poor sealing between the bottom formwork and the docking joint, and to propose a wet joint construction formwork structure for an overpass project.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The cam is secured to the bottom of the V-shaped support plate and has a V-shaped bottom support plate which is secured to the bottom of the V-shaped support plate.

[0008] As a further description of the above technical solution:

[0009] The adjusting rod includes a screw and a threaded sleeve at both ends of the screw. The outer peripheral wall of the threaded sleeve is fixedly provided with a connecting sleeve with one end rotatably connected to the free end of the inclined rod. The threads in the threaded sleeves at both ends of the screw rotate in opposite directions.

[0010] As a further description of the above technical solution:

[0011] A butt-jointing pipe is vertically distributed on the hosting tube, and a limiting shaft which is plugged into and matched with the butt-jointing pipe is fixedly provided on the bottom of the middle partition.

[0012] As a further description of the above technical solution:

[0013] The butt joint and the tube are elastically slidably connected up and down, and the two sides of the middle partition are fixedly provided with straps located at the bottom. The number of the sockets on a single inclined rod is at least two, and at least two of the sockets are arranged along the length direction of the inclined rod.

[0014] As a further description of the above technical solution:

[0015] There are at least two butt joints and a connecting beam is fixedly connected to the bottom. A limiting ring located above the trustee is fixedly provided on the outer peripheral wall of the butt joint. A reset spring is sleeved on the butt joint and located between the limiting ring and the trustee.

[0016] As a further description of the above technical solution:

[0017] A reinforcement rod is welded to the upper end surface of the bottom template, and a reinforcement hole close to the top is opened on one side of the middle partition.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] 1. In the present invention, a support tube and V-shaped movable splints at both ends of the support tube are provided. The V-shaped movable splint suspends the support tube below the middle of the butt joint, wherein the V-shaped movable splint can be directly placed on the non-butt joint position of the strong beam, wherein side support shafts are provided on the V-shaped movable splint and are abutted against both sides of the butt joint, and a middle partition is provided on the support tube. The middle partition and the side support shafts are used to support the bottom formwork. That is to say, when two V-shaped movable splints are directly overlapped on one side of the butt joint area on the bridge, the bottom formwork can be positioned. This has the advantage of greatly improving the efficiency of bottom formwork positioning.

[0020] 2. In the present invention, a support rod overlapped with the side wall of the bridge is provided on the V-shaped movable splint, and an adjustment rod for adjusting the opening angle is provided on the V-shaped movable splint, wherein the side support shaft and the oblique rod on the V-shaped movable splint are plugged into each other, and the middle partition and the support rod are detachably connected. When the concrete hardens, by controlling the angle of the V-shaped movable splint to decrease, and then controlling the dislocation movement of the support rod, all other components except the bottom formwork and the middle partition can be removed as a whole, which makes disassembly more convenient.

[0021] 3. In the present invention, by setting the middle partition to be elastically slidably connected to the bracket up and down, when the width of the butt joint is too large, the middle partition will be pushed downward by the bottom formwork, so that the gap between the bottom formwork and the middle partition and the butt end face of the bridge is greatly reduced, which has the advantage of preventing concrete leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a wet joint construction template structure for an overpass project proposed by the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the structure viewed from above;

[0024] Figure 3 This is a schematic diagram of the structure of the wet joint construction template structure for an overpass project proposed by the present invention after the middle partition and the tube are explosively deployed;

[0025] Figure 4 This is a structural schematic diagram of the application of a wet joint construction template structure for an overpass project proposed by the present invention.

[0026] Legend:

[0027] 1. Pour concrete; 2. Bottom formwork; 3. Suspension part; 31. Supporting tube; 311. Butt pipe; 3111. Connecting beam; 3112. Limiting ring; 32. V-shaped movable splint; 321. Diagonal rod; 3211. Socket; 3212. Support rod; 33. Adjusting rod; 331. Screw; 332. Threaded sleeve; 3321. Connecting sleeve; 34. Side support shaft; 35. Middle partition; 351. Limiting shaft; 352. Strap; 353. Reinforcement hole; 4. Return spring; 5. Reinforcement rod. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention. Example

[0029] See also Figure 1-4 A wet joint construction template structure for an overpass project includes a bottom template 2 located at the bottom of the poured concrete 1 and a hanging part 3 for limiting the bottom template 2. The poured concrete 1 is located at the butt joint of the bridge body, and the bottom template 2 is located at the bottom of the butt joint. The hanging part 3 serves to suspend the bottom template 2.

[0030] The hanging part 3 includes a support tube 31, a V-shaped movable splint 32, an adjusting rod 33, a side support shaft 34 and a middle partition 35. The two ends of the support tube 31 are respectively hingedly connected to the tip of a V-shaped movable splint 32. The support tube 31 and the V-shaped movable splint 32 are in a vertical state. The support tube 31 is located at the bottom of the joint when in use.

[0031] The open end of the V-shaped movable splint 32 is connected by an adjusting rod 33, and the adjusting rod 33 is used to adjust the opening size of the V-shaped movable splint 32, that is, the angle between the two oblique rods 321 on the V-shaped movable splint 32 can be adjusted. A socket 3211 that is separable from the side support shaft 34 is provided on one side of each oblique rod 321 on the V-shaped movable splint 32. When in use, the side support shaft 34 will be against the lower side of the bridge docking end face.

[0032] A supporting rod 3212 parallel to the supporting tube 31 is fixedly provided on the diagonal rod 321. The supporting rod 3212 is located between the free end of the diagonal rod 321 and the socket 3211. The length of the supporting tube 31 is greater than the width of the bridge. When in use, the supporting rod 3212 is placed on the upper end face of the bridge near both sides. When the supporting rod 3212 and the side supporting shaft 34 are in contact with the bridge, the entire V-shaped movable splint 32 is placed, and at the same time, the position of the supporting tube 31 is fixed and located near the bottom of the joint.

[0033] The middle partition 35 is arranged on the top of the hosting 31 and the two are detachably connected. Specifically, a docking tube 311 is vertically distributed on the hosting 31, and a limiting shaft 351 that is plugged into the docking tube 311 is fixedly provided at the bottom of the middle partition 35. Bottom templates 2 are placed on both sides of the middle partition 35. The bottom templates 2 located on both sides of the middle partition 35 form a V-shaped structure with the opening facing downward, wherein one end of the bottom template 2 is placed on the side support shaft 34, and the other end of the bottom template 2 is against one side of the middle partition 35. This arrangement ensures the stability of the bottom template 2.

[0034] Among them, the adjusting rod 33 includes a screw 331 and a threaded sleeve 332 located at both ends of the screw 331. The outer peripheral wall of the threaded sleeve 332 is fixedly provided with a connecting sleeve 3321 at one end which is rotatably connected to the free end of the inclined rod 321. The threads in the threaded sleeve 332 at both ends of the screw 331 have opposite rotation directions. By controlling the rotation of the screw 331, the angle between the two inclined rods 321 can be controlled through the two threaded sleeves 332, and the adjustment operation is convenient. Example

[0035] See also Figure 2 and Figure 3 , the difference from Example 1 is that the butt joint 311 and the hosting tube 31 are elastically slidably connected up and down, and a strap 352 at the bottom is fixedly provided on both sides of the middle partition 35. This strap 352 is used to support the other end of the bottom template 2. The number of sockets 3211 on a single diagonal rod 321 is at least two, and at least two sockets 3211 are arranged along the length direction of the diagonal rod 321. When the width of the butt joint is large, the side support shaft 34 can be replaced and connected with different sockets 3211. The middle partition 35 will drop under the gravity of the bottom template 2, and the inclination angle of the bottom template 2 relative to the horizontal plane will be reduced. At this time, the bottom template 2 and the bridge butt joint end face and the side wall of the middle partition 35 are in a state of abutment, which is not only suitable for butt joints of different widths, but also can improve the sealing of the butt joint.

[0036] Among them, the number of the butt joint tubes 311 is at least two and a connecting beam 3111 is fixedly connected to the bottom. The outer peripheral wall of the butt joint tube 311 is fixedly provided with a limiting ring 3112 located above the trustee 31, and the butt joint tube 311 is provided with a reset spring 4 located between the limiting ring 3112 and the trustee 31. Example

[0037] See also Figure 1 The difference from Example 1 is that a reinforcement rod 5 is welded to the upper end surface of the bottom formwork 2. After the pouring of the concrete 1 is completed, the reinforcement rod 5 is located in the poured concrete 1. At this time, the bottom formwork 2 and the concrete form an integral whole. The strength of the concrete after molding is improved. A reinforcement hole 353 is opened on one side of the middle partition 35 near the top. The sub-reinforcement hole 353 is convenient for concrete filling. After pouring, the middle partition 35 remains in the poured concrete 1, further improving the strength of the poured concrete 1 after molding.

[0038] Working principle: When in use, two V-shaped movable splints 32 are connected by a sling with the help of a lifting tool, and then lifted to the top of the bridge joint and lifted downward.

[0039] When the support rod 3212 is placed on the bridge, the screw 331 is controlled to rotate to adjust the angle of the opening of the V-shaped movable splint 32, thereby controlling the side support shaft 34 and the end face of the bridge joint to abut against each other, and then one end of the two bottom formworks 2 is placed on the side support shaft 34, and the other end is placed on the side wall of the middle partition 35. At this time, the bottom formwork 2 is installed, and the space above the bottom formwork 2 is the casting space.

[0040] Among them, the common side formwork can be used to block the two ends of the joint. Since the height of the two ends of the joint is small, it is convenient to place the side formwork. The specific installation structure of this side formwork will not be described in detail. The small-area side formwork and the large-area bottom formwork 2 constitute a casting cavity, and this casting space is used to fill and cast concrete 1.

[0041] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A wet joint construction template structure for an overpass engineering project, comprising a bottom template (2) located at the bottom of the poured concrete (1) and a hanging portion (3) for limiting the position of the bottom template (2), characterized in that: The hanging part (3) includes a hosting (31), a V-shaped movable splint (32), an adjusting rod (33), a side support shaft (34) and a middle partition (35). The two ends of the hosting (31) are respectively hingedly connected to the tip of a V-shaped movable splint (32). The open end of the V-shaped movable splint (32) is connected through an adjusting rod (33). The adjusting rod (33) is used to adjust the opening size of the V-shaped movable splint (32). A socket (3211) that is detachable from the side support shaft (34) is provided on one side of each oblique rod (321) on the V-shaped movable splint (32). A supporting rod (3212) parallel to the supporting rod (31) is fixedly provided on (321), and the supporting rod (3212) is located between the free end of the inclined rod (321) and the socket (3211). The middle partition (35) is arranged on the top of the supporting rod (31) and the two are detachably connected. The bottom templates (2) are placed on both sides of the middle partition (35). The bottom templates (2) located on both sides of the middle partition (35) form a V-shaped structure with an opening facing downward, wherein one end of the bottom template (2) is placed on the side supporting shaft (34), and the other end of the bottom template (2) is against one side of the middle partition (35).

2. The wet joint construction template structure for an overpass project according to claim 1 is characterized in that: The adjusting rod (33) comprises a lead screw (331) and thread sleeves (332) located at both ends of the lead screw (331). A connecting sleeve (3321) having one end rotatably connected to the free end of the inclined rod (321) is fixedly provided on the outer peripheral wall of the thread sleeve (332). The threads in the thread sleeves (332) located at both ends of the lead screw (331) rotate in opposite directions.

3. The wet joint construction template structure for an overpass project according to claim 1 is characterized in that: A butt-jointing tube (311) is vertically distributed on the hosting tube (31), and a limiting shaft (351) that is plugged into and fits with the butt-jointing tube (311) is fixedly provided at the bottom of the middle partition (35).

4. The wet joint construction template structure for an overpass project according to claim 3 is characterized in that: The butt-joint pipe (311) and the tube (31) are elastically slidably connected up and down, and a strap (352) located at the bottom is fixedly provided on both sides of the middle partition (35), and the number of the sockets (3211) on a single inclined rod (321) is at least two, and at least two of the sockets (3211) are arranged along the length direction of the inclined rod (321).

5. The wet joint construction template structure for overpass engineering according to claim 4 is characterized in that: The number of the butt joint tubes (311) is at least two and a connecting beam (3111) is fixedly connected to the bottom. A limiting ring (3112) located above the trustee tube (31) is fixedly provided on the outer peripheral wall of the butt joint tube (311). A return spring (4) located between the limiting ring (3112) and the trustee tube (31) is sleeved on the butt joint tube (311).

6. The wet joint construction template structure for an overpass project according to claim 1, characterized in that: A reinforcement rod (5) is welded to the upper end surface of the bottom template (2), and a reinforcement hole (353) close to the top is opened on one side of the middle partition plate (35).

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