UHPC prefabricated assembly joint structure

Abstract

The utility model discloses a UHPC prefabricated assembly joint structure, and relates to the field of offshore photovoltaic engineering, the UHPC prefabricated assembly joint structure comprises at least two bearing devices, the upper end face of one end of each bearing device is provided with a grouting groove used for pouring UHPC, the other end of each bearing device is used for being connected with a PHC pipe pile prefabricated joint of a PHC pipe pile, and the inner wall of each grouting groove is circumferentially provided with a guide groove communicating with the corresponding grouting groove; the connecting device is used for being connected with the bearing device and comprises a connecting main body and a plurality of guiding pieces which are arranged on the periphery of the connecting main body and matched with the guiding grooves, each guiding piece corresponds to one guiding groove, and a reinforcing steel bar which is used for penetrating through the guiding pieces and extending to the grouting groove is arranged in the connecting main body. The connector structure is simplified on the basis of the anchoring performance of the UHPC, the bearing device of the prefabricated assembly connector structure is connected with the connecting device, so that a tightly-surrounding UHPC pouring formwork is formed, system conversion of the two temporary connecting devices is achieved through post-pouring of the UHPC, the connecting device and the bearing device are connected into a common stress overall structure, and rapid assembly of prefabricated parts is achieved.

Description

Technical Field

[0001] This utility model relates to the field of marine photovoltaic engineering, specifically to a UHPC prefabricated assembly joint structure. Background Technology

[0002] Offshore photovoltaic (PV) power generation projects are still in the initial exploratory stage. Based on the design theory and construction experience of pile foundations in the civil engineering field, a preliminary "PHC pipe pile + steel / concrete truss" scheme has been developed. This scheme utilizes the advantages of precast PHC pipe piles, such as stable pile quality, high strength, and high efficiency in offshore construction, and rapidly drives the piles through static pressure and vibration methods. A steel / concrete truss is used to connect the PHC pipe piles into sections, further improving the overall lateral torsional stiffness of the pile group. This scheme has a simple structure and reliable performance, and has already enabled the large-scale construction of offshore PV power stations in coastal mudflats and intertidal zones.

[0003] The aforementioned construction schemes still have shortcomings in terms of offshore construction and maintenance, especially considering the complex marine environment. Firstly, the marine construction environment presents limitations, with variable marine climates and irregular construction windows. The construction process relies on marine transportation and hoisting equipment, and the connection between PHC pipe piles and steel / concrete trusses is complex. The curing period for concrete further prolongs the construction cycle, leading to higher construction costs. Secondly, the marine environment is a relatively complex corrosive environment. Seawater itself is a highly corrosive medium, and waves, tides, and currents generate low-frequency reciprocating stresses and impacts on components, directly or indirectly accelerating the corrosion process. This results in substantial anti-corrosion and subsequent maintenance costs for offshore photovoltaic projects. Therefore, a highly corrosion-resistant concrete structure suitable for rapid construction is urgently needed. Utility Model Content

[0004] This application provides a UHPC prefabricated assembly joint structure, which can solve the technical problems of complex connection and high maintenance cost between PHC pipe piles in the prior art.

[0005] This application provides a UHPC prefabricated assembly joint structure for connecting PHC pipe piles, comprising: at least two receiving devices, one end of which has a grouting groove for casting UHPC, and the other end of which is a PHC pipe pile prefabricated joint for connecting the PHC pipe piles; the inner wall of the grouting groove is provided with a guide groove communicating with the grouting groove; and a connecting device for connecting the receiving devices, the connecting device comprising a connecting body and a plurality of guide members disposed around the connecting body and adapted to the guide groove, each guide member corresponding to a guide groove, and the connecting body having reinforcing bars for passing through the guide members and extending into the grouting groove.

[0006] In one embodiment, the device further includes: a fixing block disposed between the connecting body and the guide member, wherein a reinforcing bar in the connecting body passes through the fixing block and the guide member and extends toward the grouting groove; and a pressure-bearing assembly disposed within the receiving device, wherein the pressure-bearing assembly abuts against at least a portion of the bottom surface of the fixing block.

[0007] In one embodiment, the pressure-bearing component is a pressure-bearing block, the top surface of the pressure-bearing block abuts against at least a portion of the bottom surface of the fixing block, one side of the pressure-bearing block abuts against the side of the connecting body facing the grouting groove, and the opposite side of the pressure-bearing block abuts against a side plate forming the grouting groove.

[0008] In one embodiment, the pressure block and the receiving device are integrally formed.

[0009] In one embodiment, the side of the connecting body facing the receiving device is sealed to the opening of the grouting groove facing the connecting body.

[0010] In one embodiment, the guide is a guide plate, which divides the grouting groove into a first groove and a second groove, and the guide plate has a first through hole connecting the first groove and the second groove.

[0011] In one embodiment, the grouting groove is formed by a side plate, a bottom plate, and the side of the connecting body facing the receiving device, all disposed within the receiving device, wherein the bottom plate is inclined downward along the direction from the first groove toward the second groove.

[0012] In one embodiment, one of the side plates, away from the connecting body, is inclined along the first groove toward the second groove.

[0013] In one embodiment, the device further includes: a splicing tooth block, the splicing tooth block being disposed within the receiving device, one end of the splicing tooth block being fixedly connected to the side of the receiving device away from the connecting device, and the other end of the splicing tooth block overlapping the outer side of the side plate forming the grouting groove.

[0014] In one embodiment, the grouting groove includes: a connecting portion and at least two overlapping portions, wherein the reinforcing bars in the same longitudinal direction pass through the fixing block, the guide and the connecting portion and extend toward the overlapping portions, the overlapping portions are spaced apart, and the splicing tooth blocks overlap the space between the overlapping portions and the outer side surface of the side plate forming the overlapping portion, with one splicing tooth block inserted in each space.

[0015] The beneficial effects of the technical solutions provided in this application include:

[0016] This application employs a prefabricated UHPC joint structure, connecting the prefabricated assembly joint structure to the prefabricated joints of the PHC pipe piles before pouring the UHPC. This forms a tightly packed formwork surrounding the UHPC, allowing for system conversion between the two temporary connection devices through post-pouring of the UHPC, thus connecting the connection device and the receiving device into a unified load-bearing structure. This solves the technical problems of complex connections between PHC pipe piles and high maintenance costs during service in related technologies. Based on the excellent mechanical and durability properties of UHPC material, the application utilizes the tenon and mortise structure of prefabricated concrete in the UHPC prefabricated assembly joint structure to temporarily assemble the connection device and the receiving device, simplifying the UHPC prefabricated assembly joint structure and construction process. This enables rapid assembly of offshore concrete structures, solves the problem of complex connections between PHC pipe piles in related technologies, shortens the overall construction time of pile foundations, and effectively controls subsequent maintenance costs while reducing construction costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the UHPC prefabricated assembly joint structure provided in one embodiment of this application;

[0019] Figure 2 This is a top view of a UHPC prefabricated assembly joint structure provided in an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the UHPC prefabricated assembly joint structure provided in another embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the structure of a receiving device provided in an embodiment of this application;

[0022] Figure 5 This is a partial structural schematic diagram of a connecting device provided in an embodiment of this application;

[0023] Figure 6 This is a schematic diagram of the structure of a guide member provided in one embodiment of this application;

[0024] Figure 7 This is a structural schematic diagram of a UHPC prefabricated assembly joint structure provided in another embodiment of this application;

[0025] Figure 8This is a top view of a UHPC prefabricated assembly joint structure provided in another embodiment of this application.

[0026] In the diagram: 1. Receiving device; 12. Grouting groove; 121. First groove; 122. Second groove; 13. Guide groove; 2. Connecting device; 21. Connecting body; 22. Guide component; 221. First through hole; 222. Second through hole; 23. Reinforcing bar; 3. Fixing block; 4. Pressure-bearing component; 5. Splicing tooth block; 6. Overlapping part; 7. Connecting part; 8. PHC pipe pile prefabricated joint. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0028] This application provides a UHPC (Ultra-High Performance Concrete) joint structure, which can improve the durability of concrete joints and solve the technical problems of complex connection and high maintenance cost between PHC (Pre-stressed High-strength Concrete) pipe piles in the prior art, thereby realizing rapid construction of precast concrete structures at sea.

[0029] Figure 1 This is a schematic diagram of a UHPC prefabricated assembly joint structure provided in an embodiment of this application. Figure 2 This is a top view of a UHPC prefabricated assembly joint structure provided in one embodiment of this application. (Referring to the reference...) Figure 1 and Figure 2 This application provides a UHPC prefabricated assembly joint structure for connecting PHC pipe piles, comprising: at least two receiving devices 1, one end of which has a grouting groove 12 for casting UHPC, and the other end of which is a PHC pipe pile prefabricated joint 8 for connecting the PHC pipe piles; a guide groove 13 communicating with the grouting groove 12 is provided on the outer circumference of the grouting groove 12; and a connecting device 2 for connecting the receiving devices 1, the connecting device 2 comprising a connecting body 21 and a plurality of guide members 22 provided on the periphery of the connecting body 21 and adapted to the guide groove 13, wherein each guide member 22 corresponds to a guide groove 13, and the connecting body 21 is provided with a steel bar 23 for passing through the guide member 22 and extending into the grouting groove 12.

[0030] UHPC is fabricated using the closest packing principle. Due to its dense internal structure and the strong bridging effect of steel fibers, it possesses excellent strength, toughness, impermeability, and durability, offering significant advantages in harsh marine service environments such as high salt corrosion, alternating wet and dry conditions, and alternating stress. In this embodiment, the anchoring performance of UHPC simplifies the UHPC prefabricated assembly joint structure. Specifically, the receiving device 1 and the connecting device 2 are connected to form a tightly surrounding UHPC casting template. The system conversion of the two temporary connecting devices is achieved through post-casting of UHPC, connecting the connecting device 2 and the receiving device 1 into a unified load-bearing structure, enabling rapid assembly of prefabricated components. Simultaneously, due to the high chloride ion penetration resistance of UHPC, the UHPC prefabricated assembly joint structure exhibits higher structural durability, reducing the maintenance costs of offshore structures.

[0031] In this embodiment of the application, the connecting device 2 and the receiving device 1 may be made of concrete. In other embodiments of the application, the connecting device 2 and the receiving device 1 may also be made of UHPC, which is not limited here.

[0032] In one embodiment of this application, the side of the connecting body 21 facing the receiving device 1 is sealed to the opening of the grouting groove 12 facing the connecting body 21. The two ends of the receiving device 1 are a fixed end and a free end, respectively. The fixed end of the receiving device 1 is fixedly connected to the prefabricated PHC pipe pile joint 8. Specifically, the prefabricated PHC pipe pile joint 8 can be hoisted and connected to the PHC pipe pile through anchoring measures such as upper and lower flanges and grouting anchor sleeves. The main reinforcing steel of the receiving device 1 is connected to the longitudinal reinforcing steel of the prefabricated PHC pipe pile joint 8. After the receiving device 1 is connected to the PHC pipe pile, it remains horizontal. The connecting device 2 is hoisted onto the receiving device 1, and the guide 22 is inserted into the guide groove 13 to realize the assembly and fixation of the connecting device 2 and the receiving device 1. After the connecting device 2 and the receiving device 1 are assembled, a grouting groove 12 with a horizontal upper surface and a tight surrounding area is formed.

[0033] The end of the receiving device 1 consists of a bottom plate and a web plate with a certain reinforcement ratio. According to the requirements of the lap length of the stressed steel bars in the prefabricated assembly joint structure, several longitudinal splicing teeth with stressed steel bars can be prefabricated in the receiving device 1. There is at least one irregular narrow groove between the web plates. The inner wall of the receiving device 1 is roughened.

[0034] In some other embodiments of this application, the guide groove 13 may also be configured as a transverse tenon groove or other structure, depending on actual needs.

[0035] The connecting body 21 is a concrete component with a certain reinforcement ratio. The connecting body 21 can be set as a structure with dense solid ends and hollow interior. In some other embodiments of this application, the connecting body 21 can be provided with multiple ends according to the design and layout requirements of PHC pipe piles. This allows one connecting device 2 to be connected to multiple receiving devices 1, thereby realizing the connection between multiple PHC pipe piles. This is not limited here.

[0036] Figure 5 This is a partial structural schematic diagram of a connecting device 2 provided in an embodiment of this application. (Refer to reference...) Figure 1 and Figure 5 In one embodiment of this application, it further includes: a fixing block 3 disposed between the connecting body 21 and the guide member 22, wherein the reinforcing bar 23 in the connecting body 21 passes through the fixing block 3 and the guide member 22 and extends toward the grouting groove 12; and a pressure-bearing component 4, which is disposed in the receiving device 1 and abuts against at least a portion of the bottom surface of the fixing block 3.

[0037] Specifically, the steel bars 23 in the connecting body 21 pass through the fixing block 3 and the guide 22 in sequence and extend into the grouting groove 12. The fixing block 3 can fix the steel bars 23 and the guide 22 in the connecting body 21, making the structure of the connecting device 2 more stable. At the same time, the fixing block 3 can also cooperate with the pressure-bearing component 4. The pressure-bearing component 4 can withstand the pressure of the connecting device 2 by resisting the fixing block 3, thereby making the structure of the connecting device 2 and the receiving device 1 more stable after assembly.

[0038] In one embodiment of this application, the pressure-bearing component 4 is a pressure-bearing block. The top surface of the pressure-bearing block abuts against at least a portion of the bottom surface of the fixing block 3. One side of the pressure-bearing block abuts against the side of the connecting body 21 facing the grouting groove 12, and the other side of the pressure-bearing block abuts against the side plate forming the grouting groove 12.

[0039] Specifically, the pressure block is rectangular, and the top and sides of the pressure block can be smooth surfaces. Thus, when the connecting device 2 is spliced ​​to the receiving device 1, a grouting groove 12 is formed that is tightly surrounded on all sides.

[0040] In one embodiment of this application, the pressure-bearing block and the receiving device 1 are integrally formed. Specifically, the end of the receiving device 1 facing the fixing block 3 extends upward to abut against the fixing block 3.

[0041] The top surface of the pressure-bearing block abuts against at least part of the bottom surface of the fixing block 3 to bear the pressure of the connecting device 2. The guide 22 is inserted into the guide groove 13, thereby limiting the displacement of the connecting device 2 and improving the structural stability of the prefabricated assembly joint temporary structure.

[0042] Figure 6This is a schematic diagram of the structure of a guide member 22 provided in one embodiment of this application. (Referring to the reference...) Figure 1 , Figure 2 and Figure 6 In one embodiment of this application, the guide member 22 is a guide plate, which divides the grouting groove 12 into a first groove 121 and a second groove 122. A first through hole 221 is provided on the guide plate to connect the first groove 121 and the second groove 122.

[0043] Specifically, when the connecting device 2 is spliced ​​to the receiving device 1, both the fixing block 3 and the reinforcing bar 23 are placed in the grouting groove 12, and the upper surface of the fixing block 3 and the upper surface of the grouting groove 12 are on the same horizontal plane, while there is a gap between the lower surface of the fixing block 3 and the bottom plate forming the grouting groove 12. The first through hole 221 is an overflow hole, and the orthographic projection of the first through hole 221 on the connecting body 21 does not overlap with the orthographic projection of the fixing block 3 on the connecting body 21.

[0044] In this embodiment, the guide member 22 is also provided with a second through hole 222 for the reinforcing bar 23 to pass through, and the number of the second through holes 222 matches the number of reinforcing bars 23.

[0045] Figure 3 A schematic diagram of the UHPC prefabricated assembly joint structure provided in another embodiment of this application. Figure 4 This is a schematic diagram of the receiving device 1 provided in an embodiment of this application. (Referring to the reference...) Figure 3 and Figure 4 In one embodiment of this application, the grouting groove 12 is formed by a side plate, a bottom plate and a connecting body 21 arranged in the receiving device 1 facing the receiving device 1, wherein the bottom plate is inclined downward along the direction of the first groove 121 toward the second groove 122.

[0046] In this embodiment, the height of the first through hole 221 exposed above the guide groove 13 is at least 3 cm, so as to allow the UHPC to flow out through the first through hole 221.

[0047] Specifically, during the pouring of UHPC, the prepared UHPC is hoisted above the first groove 121, and the UHPC is poured into the first groove 121. Under the influence of gravity, the UHPC slides tangentially along the bottom plate, expelling the air in the grouting groove 12, and the UHPC flows into the second groove 122 through the first through hole 221. This allows for the fixed-point pouring of UHPC. The prefabricated assembly joint structure provided in this application embodiment can simplify the construction process and reduce construction costs.

[0048] The UHPC liquid level is continuously raised during the pouring process, thereby continuously expelling air from the second tank 122. After the basic pouring is completed, the UHPC in the first tank 121 and the second tank 122 is vibrated separately. Based on the principle of communicating vessels, the UHPC liquid levels in the first tank 121 and the second tank 122 are horizontal and basically maintain the same height. Furthermore, due to the high viscosity of UHPC, the UHPC in the second tank 122 will not overflow excessively due to surface tension. This ensures that the liquid levels in the first tank 121 and the second tank 122 are level and flush, realizing the formwork-free UHPC pouring of the prefabricated assembly joint structure.

[0049] Figure 7 This is a schematic diagram of a UHPC prefabricated assembly joint structure provided in another embodiment of this application. (Reference) Figure 7 In one embodiment of this application, the side plate away from the connecting body 21 is inclined along the first groove 121 toward the second groove 122.

[0050] Specifically, the side plate that forms the grouting groove 12 and is away from the connecting body 21 is set as an inclined side plate, which can further guide the UHPC from the first groove 121 to the second groove 122 during UHPC pouring.

[0051] Figure 8 This is a top view of a UHPC prefabricated assembly joint structure provided in another embodiment of this application. (See reference) Figure 8 In one embodiment of this application, it further includes: splicing tooth block 5, which is placed in the receiving device 1. One end of the splicing tooth block 5 is fixedly connected to the side of the receiving device 1 away from the connecting device 2, and the other end of the splicing tooth block 5 overlaps the outer side of the side plate forming the grouting groove 12.

[0052] Specifically, the main reinforcing steel bars of the receiving device 1 are prefabricated inside the splicing tooth block 5.

[0053] The grouting groove 12 includes at least two overlapping portions 6 and a connecting portion 7. A steel bar 23 in the same longitudinal direction passes through the fixing block 3, the guide 22 and the connecting portion 7 and extends to the overlapping portion 6. There is a gap between the overlapping portions 6. The splicing tooth block 5 overlaps the gap between the overlapping portions 6 and the outer side of the side plate forming the overlapping portion 6. One splicing tooth block 5 is inserted in each gap.

[0054] Specifically, the grouting groove 12 is formed by the side plate, the bottom plate and the side of the connecting body 21 facing the receiving device 1, which are placed in the receiving device 1. The bottom plate corresponding to the overlapping part 6 is set as a rough bottom plate with a variable slope. The bottom plate is inclined downward along the direction of the first groove 121 toward the second groove 122. At the same time, the side plate corresponding to the overlapping part 6 is inclined along the direction of the first groove 121 toward the second groove 122.

[0055] The prepared UHPC is hoisted above the overlap 6. The UHPC is poured into the first groove 121. Under the influence of gravity, the UHPC flows along the bottom plate, filling the uneven grooves in the roughened interface of the bottom plate surface, pushing out air bubbles between the UHPC and the roughened interface, improving the bonding quality of the interface, and the UHPC flows into the second groove 122 through the first through hole 221. This allows for the point-to-point casting of UHPC. The UHPC prefabricated assembly joint structure provided in this application embodiment can simplify the construction process and reduce construction costs.

[0056] This application utilizes a prefabricated UHPC prefabricated assembly joint structure to connect the UHPC prefabricated assembly joint structure with the prefabricated joints of PHC pipe piles, thereby forming a tightly enclosed UHPC casting template. The system conversion of the two temporary connection devices is achieved through post-cast UHPC, connecting the connection device and the receiving device into a unified load-bearing structure, enabling rapid assembly of prefabricated components. This solves the technical problems of complex connections between PHC pipe piles and high maintenance costs during service in related technologies. Based on the excellent mechanical and durability properties of UHPC material, the application employs the tenon and mortise structure of prefabricated concrete in the UHPC prefabricated assembly joint structure to temporarily assemble the connection device and the receiving device, simplifying the UHPC prefabricated assembly joint structure and construction process. This enables rapid assembly of offshore concrete structures, solves the problem of complex connections between PHC pipe piles in related technologies, shortens the overall construction time of pile foundations, and effectively controls subsequent maintenance costs while reducing construction costs.

[0057] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0058] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0059] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A UHPC prefabricated assembly joint structure for connecting PHC pipe piles, characterized in that, include: At least two receiving devices (1), one end of which has a grouting groove (12) for casting UHPC, and the other end is used to connect a PHC pipe pile prefabricated joint. The inner wall of the grouting groove (12) is provided with a guide groove (13) communicating with the grouting groove (12). A connecting device (2) for connecting the receiving devices (1), the connecting device (2) includes a connecting body (21) and a plurality of guide members (22) provided around the connecting body (21) and adapted to the guide groove (13). Each guide member (22) corresponds to a guide groove (13). The connecting body (21) is provided with a steel bar (23) for passing through the guide member (22) and extending into the grouting groove (12).

2. The UHPC prefabricated assembly joint structure according to claim 1, characterized in that, Also includes: A fixing block (3) is provided between the connecting body (21) and the guide (22), and the steel bar (23) in the connecting body (21) passes through the fixing block (3) and the guide (22) and extends into the grouting groove (12); A pressure-bearing component (4) is placed inside the receiving device (1) and abuts against at least a portion of the bottom surface of the fixing block (3).

3. The UHPC prefabricated assembly joint structure according to claim 2, characterized in that, The pressure-bearing component (4) is a pressure-bearing block. The top surface of the pressure-bearing block abuts against at least part of the bottom surface of the fixing block (3). One side of the pressure-bearing block abuts against the side of the connecting body (21) facing the grouting groove (12). The other side of the pressure-bearing block abuts against the side plate forming the grouting groove (12).

4. The UHPC prefabricated assembly joint structure according to claim 3, characterized in that, The pressure-bearing block and the receiving device (1) are integrally formed.

5. The UHPC prefabricated assembly joint structure according to claim 1, characterized in that, The side of the connecting body (21) facing the receiving device (1) is sealed to the opening of the grouting groove (12) facing the connecting body (21).

6. The UHPC prefabricated assembly joint structure according to claim 1, characterized in that, The guide member (22) is a guide plate, which divides the grouting groove (12) into a first groove (121) and a second groove (122). The guide plate has a first through hole (221) that connects the first groove (121) and the second groove (122).

7. The UHPC prefabricated assembly joint structure according to claim 6, characterized in that, The grouting groove (12) is formed by a side plate, a bottom plate and the side of the connecting body (21) facing the receiving device (1) and placed in the receiving device (1), wherein the bottom plate is inclined downward along the direction of the first groove (121) towards the second groove (122).

8. The UHPC prefabricated assembly joint structure according to claim 7, characterized in that, The side plate away from the connecting body (21) is inclined along the first groove (121) toward the second groove (122).

9. The UHPC prefabricated assembly joint structure according to claim 1, characterized in that, Also includes: The splicing tooth block (5) is placed inside the receiving device (1). One end of the splicing tooth block (5) is fixedly connected to the side of the receiving device (1) away from the connecting device (2), and the other end of the splicing tooth block (5) overlaps the outer side of the side plate forming the grouting groove (12).

10. The UHPC prefabricated assembly joint structure according to claim 9, characterized in that, The grouting groove (12) includes: At least two lap joints (6) and connecting parts (7), the steel bars (23) in the same longitudinal direction pass through the fixing block (3), the guide (22) and the connecting parts (7) and extend toward the lap joints (6), the lap joints (6) are spaced apart, the splicing teeth (5) overlap the space between the lap joints (6) and the outer side of the side plate forming the lap joints (6), and one splicing tooth (5) is inserted in each space.

Images