A connecting structure of steel reinforced UHPC

Abstract

The application discloses a reinforced UHPC connecting structure and relates to the technical field of reinforced connecting. The reinforced UHPC connecting structure comprises a connecting base plate, an adjusting mechanism arranged in the connecting base plate, a first motor arranged in the connecting base plate, a first bevel gear arranged at the output end of the first motor, a second bevel gear meshed with the first bevel gear, a threaded rod fixedly connected to the second bevel gear, a support plate drivingly connected to the threaded rod, a limiting plate symmetrically and slidingly connected to the support plate, and a UHPC plate arranged outside the limiting plate. The UHPC plate can provide stable support when being fixed on the steel bars that need to be reinforced, and the support range can be quickly adjusted according to the actual reinforcement range, so that the connecting mechanism always maintains stability. The UHPC plate and the cast-in-place reinforced concrete can be watered and maintained at different positions, and the problem of dry cracking in the construction process caused by the large self-shrinkage of the UHPC can be prevented.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of steel reinforcement connection, in particular to a steel reinforcement UHPC (ultra-high performance concrete) connection structure. BACKGROUND

[0002] UHPC, which stands for Ultra-High Performance Concrete, is a new type of building material with extremely high mechanical properties and durability. UHPC improves the material's compactness and strength to a great extent by optimizing particle size distribution, removing coarse aggregate, and using high-efficiency admixtures and active mineral admixtures such as silica fume. The steel reinforcement UHPC connection structure can be achieved in various ways to enhance the connection strength between UHPC and other materials (such as ordinary concrete, steel structure, etc.) and the stability of the overall structure. This connection structure mainly uses steel reinforcement as a reinforcing element to firmly connect UHPC and other structural materials together through specific arrangement and connection methods. This structure can be applied to precast concrete frame structures, steel-UHPC composite structures, and other scenarios. Steel reinforcement UHPC connection structures have a wide range of applications in bridge engineering, high-rise buildings, tunnel engineering, etc. For example, in bridge engineering, steel reinforcement UHPC beam structures can withstand greater bending moments and shear forces, improving the load-carrying capacity and durability of bridges. In high-rise buildings, steel reinforcement UHPC column and wall structures can provide better seismic performance and stability.

[0003] After searching, the patent CN220184347U discloses a steel reinforcement UHPC connection structure. The technical solution includes: a UHPC plate with internal preset reinforcing steel bars, a fixed connecting piece, and a movable connecting piece. The fixed connecting piece extends into the UHPC plate and is fixed to the internal reinforcing steel bars. The movable connecting piece is hinged to the fixed connecting piece on the outside of the UHPC plate. The fixed connecting piece and the movable connecting piece are connected by a movable sleeve, and a fixed assembly is arranged between them. The movable connecting piece is provided with a connecting bolt. The fixed part of the entire connection structure extends into the UHPC plate and is fixed to the internal preset reinforcing steel bars, ensuring the stable fixation between the connection structure and the UHPC plate, and solving the problem of inconvenience caused by excessive protrusion of the connecting piece.

[0004] But the above device in the actual use process, the connecting mechanism in the UHPC plate fixed on the need to strengthen the steel bar cannot provide stable support, cannot adjust the support range according to the actual need to reinforce the size, lead to the connecting mechanism in the fixed connection is easy to appear unstable situation, and the self shrinkage of UHPC is larger, if not in time during construction process, easy to appear cracking and other problems, therefore, put forward a kind of steel reinforced UHPC connecting structure. SUMMARY

[0005] The purpose of the present application is to solve the prior art in the connecting mechanism in the UHPC plate fixed on the need to strengthen the steel bar cannot provide stable support, cannot adjust the support range according to the actual need to reinforce the size, lead to the connecting mechanism in the fixed connection is easy to appear unstable situation, and the self shrinkage of UHPC is larger, if not in time during construction process, easy to appear cracking and other problems The shortcomings of the proposed steel reinforced UHPC connecting structure.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0007] A kind of steel reinforced UHPC connecting structure, including connecting base plate, the adjusting mechanism is arranged in the connecting base plate, the adjusting mechanism includes the first motor arranged in the connecting base plate, the output of the first motor is provided with first bevel gear, the second bevel gear is engaged with outside the first bevel gear, the threaded rod is fixedly connected with outside the second bevel gear, the support plate is drivingly connected with outside the threaded rod, the limit plate is symmetrically slidably connected in the support plate, the UHPC plate is arranged outside the limit plate, the adjusting mechanism operates so that multiple limit plates change from static state to moving state and provide support for UHPC plate;

[0008] The machine box is fixedly connected with outside the connecting base plate, the curing mechanism is arranged in the machine box, the curing mechanism includes the second motor arranged in the machine box, the output of the second motor is provided with transmission rod, the gear is fixedly connected on the side away from the second motor of the transmission rod, the rack belt is engaged with outside the gear, the nozzle is drivingly connected with outside the rack belt, the curing mechanism operates so that two nozzles start to operate at different positions;

[0009] Among them, the steel reinforced UHPC connecting structure is mainly composed of UHPC matrix and steel bar. Steel is embedded in UHPC matrix, and is tightly combined with UHPC through specific connecting mode (such as sleeve grouting connection, welding connection, etc.).

[0010] The above technical scheme further comprises:

[0011] The connecting base plate is internally provided with a square groove, the first motor is fixedly installed in the square groove, the first bevel gear is meshed with a third bevel gear on the side away from the second bevel gear, and the third bevel gear can move the other two groups of limiting plates.

[0012] The threaded rod is rotatably connected between the square groove, the threaded rod is externally threadedly connected with a threaded cylinder, the threaded cylinder is slidably connected with the square groove, the threaded cylinder is externally fixedly connected with a connecting rod, and the connecting rod is fixedly connected with the supporting plate.

[0013] The connecting base plate is internally provided with a sliding groove, the sliding groove is slidably connected with a sliding block, the sliding block is externally fixedly connected with a supporting rod, and the supporting rod is fixedly connected with the supporting plate.

[0014] The second motor is fixedly connected with the cabinet, and the rack is externally fixedly connected with a moving plate.

[0015] The moving plate is slidably connected with a communication plate, and the communication plate is fixedly connected with the nozzle.

[0016] The rack is meshedly connected with a rack rod in the interior, and the rack rod is rotatably connected with the cabinet.

[0017] The UHPC plate is fixedly connected with a fixing piece in the interior, and the fixing piece can connect the UHPC plate with the steel bar.

[0018] The application has the following beneficial effects:

[0019] 1、In the application, the first motor controls the rotation of the first bevel gear and the second bevel gear, the first bevel gear controls the rotation of the threaded rod, the threaded rod moves the threaded cylinder, the threaded cylinder drives the connecting rod to move, the connecting rod drives the supporting plate to move, the supporting plate drives the plurality of limiting plates to move, stable support can be provided when the UHPC plate is fixed on the steel bar that needs to be reinforced, the support range can be adjusted according to the actual reinforcement range, the instability of the connecting mechanism during the fixing connection is effectively prevented, and the stability of the connecting mechanism is maintained.

[0020] 2、In the application, the second motor controls the rotation of the transmission rod, the transmission rod drives the gear to rotate, the gear drives the rack to rotate, the rack drives the moving plate to move, the moving plate moves the two communication plates, and the communication plate drives the nozzle to perform water spraying operation at different positions, the UHPC plate and the cast-in-place reinforced concrete can be watered and maintained at different positions, dry cracking and other problems in the construction process caused by the large self-shrinkage of the UHPC can be prevented, the maintenance operation in the construction process can be timely and accurately and effectively performed, the reinforcement of the connecting mechanism is ensured, and the working efficiency of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A structural schematic diagram of a reinforced UHPC connecting structure according to the present application;

[0022] Figure 2 A first perspective structural schematic diagram according to the present application;

[0023] Figure 3 A second perspective structural schematic diagram according to the present application;

[0024] Figure 4 A Figure 2 An enlarged structural schematic diagram of position A in the present application;

[0025] Figure 5 A Figure 2 An enlarged structural schematic diagram of position B in the present application;

[0026] Figure 6 A Figure 3 An enlarged structural schematic diagram of position C in the present application.

[0027] In the figure: 1, connecting base plate; 2, square groove; 3, first motor; 4, first bevel gear; 5, second bevel gear; 6, third bevel gear; 7, threaded rod; 8, threaded cylinder; 9, connecting rod; 10, support plate; 11, limiting plate; 12, sliding groove; 13, sliding block; 14, support rod; 15, UHPC plate; 16, case; 17, second motor; 18, transmission rod; 19, gear; 20, rack belt; 21, rack rod; 22, moving plate; 23, communication plate; 24, spray head; 25, fixing piece. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0029] Embodiment one

[0030] As Figures 1-6As shown, the present invention proposes a connection structure for a steel-reinforced UHPC, including a connecting base plate 1. An adjustment mechanism is provided inside the connecting base plate 1. The adjustment mechanism includes a first motor 3 provided inside the connecting base plate 1. A first bevel gear 4 is provided at the output end of the first motor 3. A second bevel gear 5 is externally meshed with the first bevel gear 4. A threaded rod 7 is fixedly connected to the second bevel gear 5. A support plate 10 is externally driven to the threaded rod 7. A limit plate 11 is symmetrically slidably connected inside the support plate 10. A UHPC plate 15 is provided outside the limit plate 11. The operation of the adjustment mechanism causes multiple sets of limit plates 11 to change from a static state to a moving state and provide support for the UHPC plate 15.

[0031] A chassis 16 is fixedly connected to the outside of the connecting base plate 1. The chassis 16 is equipped with a maintenance mechanism. The maintenance mechanism includes a second motor 17 installed inside the chassis 16. A transmission rod 18 is installed at the output end of the second motor 17. A gear 19 is fixedly connected to the side of the transmission rod 18 away from the second motor 17. A rack belt 20 is meshed with the gear 19. A nozzle 24 is externally connected to the rack belt 20. The operation of the maintenance mechanism causes the two sets of nozzles 24 to start operating in different positions.

[0032] A square groove 2 is provided inside the connecting base plate 1. The first motor 3 is fixedly installed inside the square groove 2. The first bevel gear 4 is meshed with the third bevel gear 6 on the side away from the second bevel gear 5. The third bevel gear 6 can make the other two sets of limiting plates 11 move.

[0033] The threaded rod 7 is rotatably connected to the square groove 2. The threaded rod 7 is externally threaded to a threaded cylinder 8. The threaded cylinder 8 is slidably connected to the square groove 2. The threaded cylinder 8 is externally fixedly connected to a connecting rod 9. The connecting rod 9 is fixedly connected to the support plate 10.

[0034] The second motor 17 is fixedly connected to the housing 16, and a movable plate 22 is fixedly connected to the outside of the rack belt 20;

[0035] The movable plate 22 has a sliding connection to a connecting plate 23, and the connecting plate 23 is fixedly connected to the nozzle 24.

[0036] In this embodiment, the starting adjustment mechanism is arranged inside the connecting base plate 1, the first motor 3 in the adjustment mechanism starts to run, the first motor 3 is fixedly installed inside the square groove 2 opened inside the connecting base plate 1, the first motor 3 starts to control the first bevel gear 4 arranged at the output end to rotate when it operates, the first bevel gear 4 is externally meshed with the second bevel gear 5, the first bevel gear 4 drives the second bevel gear 5 to start to rotate when it rotates, the second bevel gear 5 drives the threaded rod 7 fixedly connected with the outside thereof to start to rotate when it rotates, the other side of the threaded rod 7 rotates inside the square groove 2, the threaded rod 7 is externally threadedly connected with the threaded cylinder 8, the threaded rod 7 generates spiral power when rotating inside the threaded cylinder 8, the threaded cylinder 8 is slidably connected between the outside thereof and the inside of the square groove 2, so that the threaded cylinder 8 starts to slide inside the square groove 2 and cannot rotate, the threaded cylinder 8 drives the connecting rod 9 fixedly connected with the outside thereof to move when it moves, the other side of the connecting rod 9 is fixedly connected with the supporting plate 10, the connecting rod 9 drives the supporting plate 10 to start to move when it moves, the two sides of the supporting plate 10 are slidably connected with the limiting plates 11, the supporting plate 10 drives the two sets of limiting plates 11 to start to move when it moves, the limiting plates 11 can be adjusted in width according to the actual width of the UHPC plate 15, the first bevel gear 4 drives the third bevel gear 6 meshed and connected with the outside thereof to start to rotate when it rotates, the third bevel gear 6 drives the other set of supporting plate 10 and limiting plate 11 to start to move, completing the adjustment of the support range of the UHPC plate 15;

[0037] The machine case 16 is fixedly connected outside the connecting base plate 1, the starting maintenance mechanism arranged inside the machine case 16, the second motor 17 in the maintenance mechanism starts to run, the second motor 17 is fixedly installed inside the machine case 16, the second motor 17 starts to control the transmission rod 18 arranged at the output end to rotate when it operates, the other side of the transmission rod 18 is fixedly connected with the gear 19, the transmission rod 18 drives the gear 19 to start to rotate when it rotates, the gear 19 is externally meshed with the rack belt 20, the gear 19 drives the rack belt 20 to start to rotate when it rotates, the moving plate 22 is fixedly connected outside the rack belt 20, the rack belt 20 drives the moving plate 22 to start to move when it moves, the two sets of communication plates 23 are slidably connected inside the two sides of the moving plate 22, the two sets of communication plates 23 can be adjusted in distance according to the width of the UHPC plate 15, the moving plate 22 drives the two sets of communication plates 23 to start to move when it moves, the other side of the communication plate 23 is fixedly installed with the nozzle 24, the two sets of communication plates 23 drive the two sets of nozzles 24 to start to move when they move, so that the two sets of nozzles 24 can perform water spraying operation on the UHPC plate 15 and the reinforced concrete connected therewith at different positions, so that the connection process between the UHPC plate 15 and the steel bar maintains appropriate humidity, preventing the UHPC plate 15 and the reinforced concrete from drying out.

[0038] Example two

[0039] As Figures 1-6 shown, based on the basis of example one, the connecting base plate 1 is internally provided with a sliding groove 12, the sliding groove 12 is internally slidably connected with a sliding block 13, the sliding block 13 is externally fixedly connected with a support rod 14, the support rod 14 is fixedly connected between the support plate 10;

[0040] The rack strip 20 is internally meshingly connected with a rack rod 21, the rack rod 21 is rotatably connected with the case 16;

[0041] The UHPC plate 15 is internally fixedly connected with a fixing piece 25, the fixing piece 25 can connect the UHPC plate 15 and the steel bar.

[0042] In the embodiment, when the support plate 10 moves, the support plate 10 will drive the support rod 14 fixedly connected with the outside of the support plate 10 to start moving, the other side of the support rod 14 is fixedly connected with the sliding block 13, the support rod 14 drives the sliding block 13 to start moving when the support rod 14 moves, the sliding groove 12 is internally provided in the connecting base plate 1, the sliding block 13 starts to slide in the sliding groove 12, the sliding groove 12, the sliding block 13 and the support rod 14 are provided with multiple groups, so that the two groups of support plates 10 and the multiple groups of limiting plates 11 always maintain high stability during movement, and the support of the UHPC plate 15 is not affected. The rack strip 20 is internally meshingly connected with the rack rod 21, the rack strip 20 drives the rack rod 21 to start rotating when the rack strip 20 rotates, the other side of the rack rod 21 is rotatably connected with the inside of the case 16, so that the other side of the rack rod 21 rotates in the inside of the case 16, providing stable support for the rotation of the rack strip 20. The UHPC plate 15 is internally provided with the fixing piece 25, the fixing piece 25 is used for the fixed connection between the UHPC plate 15 and the steel bar, facilitating the subsequent pouring connection operation.

[0043] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connecting structure of steel-reinforced UHPC, comprising a connecting base plate (1), characterized in that, The connecting base plate (1) is internally provided with an adjusting mechanism, the adjusting mechanism comprises a first motor (3) provided inside the connecting base plate (1), a first bevel gear (4) is arranged at the output end of the first motor (3), a second bevel gear (5) is engagedly connected outside the first bevel gear (4), a threaded rod (7) is fixedly connected outside the second bevel gear (5), a supporting plate (10) is drivingly connected outside the threaded rod (7), a limiting plate (11) is symmetrically and slidingly connected inside the supporting plate (10), a UHPC plate (15) is arranged outside the limiting plate (11), the operation of the adjusting mechanism makes a plurality of limiting plates (11) change from a static state to a moving state and provides support for the UHPC plate (15), a square groove (2) is arranged inside the connecting base plate (1), the first motor (3) is fixedly installed inside the square groove (2), a third bevel gear (6) is engagedly connected to the side, away from the second bevel gear (5), of the first bevel gear (4), the third bevel gear (6) can make another two limiting plates (11) move, the threaded rod (7) is rotatably connected with the square groove (2), a threaded cylinder (8) is threadedly connected outside the threaded rod (7), the threaded cylinder (8) is slidingly connected with the square groove (2), a connecting rod (9) is fixedly connected outside the threaded cylinder (8), and the connecting rod (9) is fixedly connected with the supporting plate (10). A machine box (16) is fixedly connected outside the connecting base plate (1), the machine box (16) is provided with a maintenance mechanism, the maintenance mechanism comprises a second motor (17) arranged inside the machine box (16), a transmission rod (18) is arranged at the output end of the second motor (17), a gear (19) is fixedly connected to the side, away from the second motor (17), of the transmission rod (18), a rack belt (20) is engagedly connected outside the gear (19), a spray head (24) is drivingly connected outside the rack belt (20), the operation of the maintenance mechanism makes two spray heads (24) start to operate at different positions, the second motor (17) is fixedly connected with the machine box (16), a moving plate (22) is fixedly connected outside the rack belt (20), a communication plate (23) is slidingly connected inside the moving plate (22), and the communication plate (23) is fixedly connected with the spray head (24).

2. The connection structure of steel reinforced UHPC according to claim 1, characterized in that, A sliding groove (12) is arranged inside the connecting base plate (1), a sliding block (13) is slidingly connected inside the sliding groove (12), a supporting rod (14) is fixedly connected outside the sliding block (13), and the supporting rod (14) is fixedly connected with the supporting plate (10).

3. The connection structure of steel reinforced UHPC according to claim 1, characterized in that, A rack rod (21) is engagedly connected inside the rack belt (20), and the rack rod (21) is rotatably connected with the machine box (16).

4. The connection structure of steel reinforced UHPC according to claim 1, characterized in that, A fixing piece (25) is fixedly connected inside the UHPC plate (15), and the fixing piece (25) can connect the UHPC plate (15) and the steel bar.

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