Prefabricated UHPC cavity module concrete shear wall and construction method thereof

Abstract

The invention discloses a prefabricated UHPC cavity module concrete shear wall and a construction method thereof.The prefabricated UHPC cavity module concrete shear wall comprises linear building blocks, L-shaped building blocks and T-shaped building blocks, and partition plates used for partitioning concrete are arranged in the linear building blocks, the L-shaped building blocks and the T-shaped building blocks; the linear building blocks, the L-shaped building blocks and the T-shaped building blocks are connected through clamping groove plates in the horizontal direction. According to the prefabricated shear wall, the cavities are spliced in a staggered mode through the hollow holes, so that cast-in-place concrete and prefabricated concrete can be tightly combined without dislocation, and the complexity of the working procedure is greatly reduced; and meanwhile, the integrality of the structure and the reliability of a connecting area are remarkably enhanced through the combination mode of prefabrication and cast-in-place.

Description

Technical Field

[0001] The present application relates to the field of building technology, and in particular to a prefabricated UHPC cavity module concrete shear wall and a construction method thereof. Background Art

[0002] The traditional composite steel plate shear wall structure is filled with concrete in its entire cross section, which has the problems of high consumption of building materials, poor seismic performance, ductility and low strength. At the same time, since the spacing between shear walls cannot be too large, this limits the flexibility of its plane layout and cannot meet the large space use requirements of all public buildings.

[0003] Partially prefabricated cavity masonry concrete shear walls can be flexibly assembled on site, reducing the difficulty of construction and making up for the shortcomings of the traditional plan layout that is not flexible enough. Summary of the invention

[0004] In order to improve the problem that the traditional plane layout is not flexible enough, the present application provides a prefabricated UHPC cavity module concrete shear wall and a construction method thereof.

[0005] The prefabricated UHPC cavity module concrete shear wall provided in this application adopts the following technical solution: A prefabricated UHPC cavity module concrete shear wall comprises a straight-line block, an L-shaped block and a T-shaped block, wherein the straight-line block, the L-shaped block and the T-shaped block are each provided with a partition plate for separating concrete, and the straight-line block, the L-shaped block and the T-shaped block are connected to each other in a horizontal direction through a slot plate.

[0006] Optionally, the I-shaped building blocks, L-shaped building blocks and T-shaped building blocks are each provided with a U-shaped slot on the top and a key slot matching the slot on the bottom, and the slot and the key slot are both the same length as the corresponding I-shaped building blocks, L-shaped building blocks or T-shaped building blocks.

[0007] The construction method of a prefabricated UHPC cavity module concrete shear wall provided in this application adopts the following technical solution: A prefabricated UHPC cavity module concrete shear wall and a construction method thereof, comprising the following steps: S1. Prefabricate molds in the factory, make straight-shaped, L-shaped and T-shaped molds respectively, use ultra-high performance concrete UHPC for pouring, cover the surface with a protective film and spray water regularly to keep the concrete surface moist, and demould after reaching a certain strength; S2, transporting prefabricated concrete blocks to the construction site; S3. Open semicircular slots on the front panel of the concrete block and arrange them symmetrically up and down, left and right. The upper slot opens upward and the lower slot opens downward. When the upper and lower blocks are spliced ​​together, a circle is formed to place the steel bars. S4. During construction, the first batch of masonry needs to be mortared on the ground, and the "matching holes and staggered seams" splicing method is adopted, that is, when splicing, the upper and lower skins are aligned with the holes, and the U-shaped card slot is aligned with the protruding key slot below for splicing. If it does not meet the requirements, it can be cut and adjusted on site; S5. Pass the transverse steel bars through the circular steel bar holes, seal the gaps with mortar, insert steel bars above the cavities, tie and overlap them, and form a steel bar skeleton; S5, when reinforcing the shear wall, you can put the blocks on one side of the old shear wall, connect the blocks and the old shear wall with bolts, and finally pour concrete into the cavity in layers; S6. During the construction process, the expansion of the upper and lower blocks needs to be monitored in real time. If there is a position shift between adjacent blocks, the upper and lower adjacent I-shaped blocks, L-shaped blocks or T-shaped blocks need to be pulled in time.

[0008] Optionally, in S6, a detection mechanism is used to detect the positional relationship between the upper and lower building blocks, and the detection mechanism includes two brackets, an adsorption component, and an identification component for identifying whether the upper and lower building blocks are positionally offset, and the adsorption component is used to achieve adsorption and fixation of the two brackets to the corresponding building blocks.

[0009] Optionally, the identification component includes an identification rope, a tension sensor, a winding portion for winding the identification rope, and a judgment portion for judging whether the identification rope is parallel to a corresponding building block. The two ends of the identification rope are respectively connected by the two winding portions, that is, the identification rope is in a vertical state in an initial state. The tension sensor is used to connect the identification rope located between the two winding portions, and the tension sensor is electrically connected to a buzzer.

[0010] Optionally, the judging unit includes a whiteboard slidably disposed on any one of the brackets, a plurality of marking lines are displayed on the whiteboard, and if the marking rope coincides with one of the marking lines, the marking rope is in a vertical state.

[0011] Optionally, the adsorption assembly includes two vacuum suction cups, a viewing portion for determining whether the corresponding building blocks of the vacuum suction cups are adsorbed and fixed, and an adjustment portion for adjusting the position of one end of the identification rope, and the two brackets are fixedly connected to the two vacuum suction cups respectively.

[0012] Optionally, the winding part includes a winding frame movably arranged on the bracket, a winding roller rotatably arranged on the winding frame, and a winding motor; the adjusting part includes a screw rod slidably arranged on the bracket, a threaded sleeve rotatably connected to the bracket, and a limiting block; the threaded rod has a peripheral wall provided with a limiting groove for sliding of the limiting block, both ends of the limiting groove are closed, the limiting block is slidably arranged in the limiting groove, the bracket is provided with a sliding hole for sliding of the screw rod, the limiting block is fixed in the sliding hole, and the end is fixedly connected to the winding frame.

[0013] Optionally, the viewing part includes a viewing motor, a viewing block fixedly connected to the output end of the viewing motor, a push rod elastically arranged on the viewing block, an electromagnet, a curing group and a softening group, the viewing block is provided with a through hole for the identification rope to pass through, the bottom wall of the through hole is provided with a curing hole, the push rod ejects the identification rope into the curing hole, the curing group injects glue into the curing hole, and the softening group injects a softener for softening the glue into the curing hole. After the viewing block is firmly connected to the identification rope, the viewing motor is controlled to wind the identification rope to detect whether the vacuum suction cup is firmly fixed to the building block.

[0014] Optionally, the viewing portion also includes a viewing frame adsorbed on the building block, a pin elastically arranged on the viewing frame, a ring, a pull rope and a sound piece fixedly connected to the tail end of the pin, the tip of the pin abuts against the side wall of the vacuum suction cup, the pull rope is fixed on the bracket and passes through the ring, the sound piece is fixedly connected to the tail end of the pull rope, and the sound piece is used to indicate whether the vacuum suction cup is separated from the corresponding building block.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. The prefabricated shear wall cavity adopts staggered joints of empty holes, so that the cast-in-place and prefabricated concrete can be closely combined without displacement, and the cumbersomeness of the process is greatly reduced; at the same time, this combination of prefabrication and cast-in-place significantly enhances the integrity of the structure and the reliability of the connection area; 2. In the initial state, the tension sensor sets a fixed value, that is, the tension between the two blocks is a constant value. As long as the position of the I-shaped block or the L-shaped block is offset, the tension of the marking rope caused by the I-shaped block and the L-shaped block changes. As long as the tension on the tension sensor is less than or greater than the set value, the buzzer will be triggered to sound an alarm, thereby alerting the construction personnel that the I-shaped block and the L-shaped block are offset and need to be reinstalled. Of course, in this embodiment, if the tension of the tension sensor changes due to a slight shake between the blocks, it is within the allowable error range and will not trigger the buzzer to sound. 3. When the vacuum suction cup is tested to see if it is firmly fixed, the electromagnet is powered off. Under the action of the spring, the ejection rod ejects the identification rope into the curing hole, and the glue in the curing tank is sprayed into the curing hole. The glue bonds the ejection rod and the identification rope to the curing hole, thereby achieving the fixing effect of the inspection block and the identification rope. The inspection motor is controlled to rotate the inspection block. The inspection block continuously applies pressure to the identification rope during rotation. At this time, the tension of the tension sensor continues to increase until it reaches the tension value applied to the identification rope after the adjacent blocks are separated. Before this, if the vacuum suction cup is separated from the corresponding block, the ejector pin is pushed by the elastic part to start working, and the pull rope drives the sound part to make a sound, alerting the construction personnel that the vacuum suction cup is not firmly fixed and needs to be re-adsorbed or replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present application; Figure 2 It is a schematic diagram of the overall structure of the second embodiment of the present application; Figure 3 yes Figure 2 A magnified schematic diagram of part A; Figure 4 is a schematic diagram of a whiteboard and a marking rope according to Embodiment 2 of the present application; Figure 5 It is a schematic diagram of the viewing portion of the second embodiment of the present application.

[0017] 1. I-shaped building block; 2. L-shaped building block; 3. T-shaped building block; 4. partition plate; 5. slot plate; 6. slot; 7. key slot; 8. bracket; 9. identification rope; 10. tension sensor; 11. buzzer; 12. whiteboard; 13. vacuum suction cup; 14. winding rack; 15. winding roller; 16. winding motor; 17. screw; 18. threaded sleeve; 19. limiting block; 20. limiting groove; 21. sliding hole; 22. inspection motor; 23. inspection block; 24. ejector rod; 25. electromagnet; 26. curing group; 27. softening group; 28. curing hole; 29. ​​inspection rack; 30. ejector pin; 31. moving block; 32. moving groove; 33. handle; 34. spring; 35. ring; 36. pull rope; 37. sound part. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-5 This application is described in further detail.

[0019] Embodiment 1 The present application embodiment discloses a prefabricated UHPC cavity module concrete shear wall. Figure 1A prefabricated UHPC cavity module concrete shear wall includes a straight-line block 1, an L-shaped block 2 and a T-shaped block 3. The straight-line block 1, the L-shaped block 2 and the T-shaped block 3 are all provided with a partition plate 4 for separating concrete. The straight-line block 1, the L-shaped block 2 and the T-shaped block 3 are connected to each other in the horizontal direction through a slot 6 plate 5; the L-shaped block 2 has three independent cavities on the long side and one independent cavity on the short side, which are separated by the partition plate 4 respectively; the straight-line block 1 is cast by ultra-high performance concrete, and has a hollow rectangular cross-section. It is composed of three blocks spliced ​​left and right, and then a plurality of blocks are assembled into a wall formwork with staggered holes to ensure the integrity of the wall; the T-shaped block 3 has three independent cavities on the long side and two independent cavities on the short side, which are separated by the partition plate 4 respectively; grooves are opened at the short side and the partition plate of each block, and the left and right symmetrical arrangements are made, namely, the steel bar slot 6.

[0020] A U-shaped slot 6 is provided on the top of the I-shaped building block 1, the L-shaped building block 2 and the T-shaped building block 3, and a key slot 7 adapted to the slot 6 is provided on the bottom. The slot 6 and the key slot 7 are the same as the length of the corresponding I-shaped building block 1, the L-shaped building block 2 or the T-shaped building block 3. This embodiment uses the I-shaped building block 1 and the L-shaped building block 2 as examples. If the I-shaped building block 1 is installed on the top of the L-shaped building block 2, the slot 6 is provided at the bottom of the I-shaped building block 1, and the key slot 7 is provided at the top of the L-shaped building block 2. When the I-shaped building block 1 is installed on the top of the L-shaped building block 2, the installation of the I-shaped building block 1 and the L-shaped building block 2 can be completed under the mutual cooperation of the slot 6 and the key slot 7; in addition, the slot 6 plate 5 is provided with two concave and convex parts. Similarly, if the I-shaped building block 1 and the L-shaped building block 2 need to be installed in the horizontal direction, they are installed through the concave and convex parts of the slot 6 plate 5.

[0021] The embodiments of the present application have the following effects: 1. Fast construction speed It combines partial prefabrication and assembly technology, and adopts a production method that combines partial prefabrication and partial cast-in-place. Compared with the fully cast-in-place steel concrete shear wall structure, it greatly reduces the workload of the formwork process and masonry, and only needs to fill the cavity with cast-in-place concrete, which greatly simplifies the construction process and greatly shortens the construction period.

[0022] 2. Good structural integrity The prefabricated shear wall cavity is spliced ​​with staggered holes, which allows the cast-in-place and precast concrete to be tightly combined without shifting, and greatly reduces the complexity of the process; at the same time, this combination of prefabrication and cast-in-place significantly enhances the integrity of the structure and the reliability of the connection area.

[0023] 3. Cost savings Due to the significant reduction in wet work, the cavity part can be directly used as the formwork for the cast-in-place part, thereby saving a lot of formwork and support costs. The steel bars can be directly inserted into the corresponding slots 6, avoiding the drilling step, and significantly improving cost-effectiveness.

[0024] 4. Wide applicability Three shear wall shapes are used to meet different needs, including: building location, structure, earthquake resistance requirements, spatial layout and other factors. During the construction process, the appropriate wall form can be selected according to the actual situation to meet the needs of the building.

[0025] Embodiment 2 The present application embodiment discloses a construction method of a prefabricated UHPC cavity module concrete shear wall. Figure 2-Figure 4 A construction method of a prefabricated UHPC cavity module concrete shear wall comprises the following steps: S1. Prefabricate molds in the factory, make straight-shaped, L-shaped and T-shaped molds respectively, use ultra-high performance concrete UHPC for pouring, cover the surface with a protective film and spray water regularly to keep the concrete surface moist, and demould after reaching a certain strength; S2, transporting prefabricated concrete blocks to the construction site; S3, semicircular slots 6 are opened on the front panel of the concrete block and arranged symmetrically up and down and left and right. The upper slot 6 opens upward and the lower slot opens downward. When the upper and lower blocks are spliced, a circular shape is formed to place the steel bars. S4. During construction, the first batch of masonry needs to be slurried on the ground, and the "matching holes and staggered seams" splicing method is adopted, that is, the upper and lower skins are aligned with the holes during splicing, and the U-shaped card slot 6 is aligned with the protruding key slot 7 below for splicing. If it does not meet the requirements, it can be cut and adjusted on site; S5. Pass the transverse steel bars through the circular steel bar holes, seal the gaps with mortar, insert steel bars above the cavities, tie and overlap them, and form a steel bar skeleton; S5, when reinforcing the shear wall, you can put the blocks on one side of the old shear wall, connect the blocks and the old shear wall with bolts, and finally pour concrete into the cavity in layers; S6. During the construction process, the expansion of the upper and lower blocks needs to be monitored in real time. If there is a position shift between adjacent blocks, the upper and lower adjacent I-shaped blocks 1, L-shaped blocks 2 or T-shaped blocks 3 need to be pulled in time.

[0026] In S6, a detection mechanism is used to detect the positional relationship between the upper and lower building blocks. The detection mechanism includes two brackets 8, an adsorption component, and an identification component for identifying whether the upper and lower building blocks are offset in position. The adsorption component is used to achieve the adsorption and fixation of the two brackets 8 to the corresponding building blocks. In this embodiment, the I-shaped building block 1 and the L-shaped building block 2 are still used as examples for illustration. The two brackets 8 correspond to the I-shaped building block 1 and the L-shaped building block 2 respectively. The adsorption component is used to fix the two brackets 8 to the I-shaped building block 1 and the L-shaped building block 2 respectively. If the I-shaped building block 1 and the L-shaped building block 2 are offset in position due to improper operation or instability during installation during the pouring process, they are all identified by the identification component, thereby achieving the effect of real-time monitoring of the I-shaped building block 1 and the L-shaped building block 2 during the pouring of concrete.

[0027] The marking assembly includes a marking rope 9, a tension sensor 10, a winding portion for winding the marking rope 9, and a judgment portion for judging whether the marking rope 9 is parallel to the corresponding building block. The two ends of the marking rope 9 are respectively connected by the two winding portions, that is, the marking rope 9 is in a vertical state in the initial state. The tension sensor 10 is used to connect the marking rope 9 located between the two winding portions. The tension sensor 10 is electrically connected to a buzzer 11. The tension sensor 10 and the buzzer 11 are controlled and connected by a PLC controller. In the initial state, the tension sensor 10 sets a fixed value, that is, the force between the two building blocks. The tension is a constant value. As long as the position of the I-shaped building block 1 or the L-shaped building block 2 is shifted, the tension of the marking rope 9 received by the I-shaped building block 1 and the L-shaped building block 2 changes. As long as the tension on the tension sensor 10 is less than or greater than the set value, the buzzer 11 will be triggered to sound an alarm, thereby warning the construction personnel that the I-shaped building block 1 and the L-shaped building block 2 are shifted and need to be reinstalled. Of course, in this embodiment, if the tension of the tension sensor 10 changes due to a slight shaking between the blocks, it is within the allowable error range and will not trigger the buzzer 11 to sound.

[0028] The judging part includes a whiteboard 12 slidably arranged on any one of the brackets 8, and a plurality of marking lines are displayed on the whiteboard 12. If the marking rope 9 coincides with one of the marking lines, it is in a vertical state. If the marking rope 9 is not flush with the vertical plane where the I-shaped building block 1 and the L-shaped building block 2 are located in the initial state, it is easy to cause problems in the subsequent monitoring of the tension, because the angle of the marking rope 9 changes, which will also cause the tension of the marking rope 9 to change. In this embodiment, the movement of the whiteboard 12 can be pushed by a manual or electric push rod, and the whiteboard 12 is always in a vertical state. State, that is, it is in a parallel state with the surface where the I-shaped building block 1 and the L-shaped building block 2 are located, and multiple identification lines can be marked on the whiteboard 12, and the fineness of the identification line is smaller than the fineness of the identification rope 9, ensuring the accuracy between the identification rope 9 and the identification line; when the identification rope 9 is installed, by moving the whiteboard 12 to a position abutting the identification rope 9, the length of the identification line on the whiteboard 12 is smaller than the length of the identification rope 9. By comparing the identification line with the identification rope 9, it can be obtained whether the identification rope 9 is parallel to the plane where the I-shaped building block 1 and the L-shaped building block 2 are located.

[0029] The adsorption assembly includes two vacuum suction cups 13, a viewing portion for judging whether the corresponding building blocks of the vacuum suction cups 13 are adsorbed and fixed, and an adjustment portion for adjusting the position of one end of the identification rope 9. The two brackets 8 are fixedly connected to the two vacuum suction cups 13 respectively. The winding portion includes a winding frame 14 movably arranged on the bracket 8, a winding roller 15 rotatably arranged on the winding frame 14, and a winding motor 16. The two vacuum suction cups 13 are respectively adsorbed and fixed on the I-shaped building block 1 and the L-shaped building block 2. At this time, the winding motor 16 can be controlled to work, and the two winding rollers 15 begin to wind the indicating rope until the identification rope 9 is in a straight state. During the installation process, the centers of the two winding rollers 15 are on the same plane, and the identification rope 9 is wound at the middle position of the winding roller 15. Since the identification rope 9 will not be wound on the winding roller 15 for multiple turns, it is ensured that the identification rope 9 will only have a position deviation on the plane where the middle position of the winding roller 15 is located, and the identification rope 9 will not deviate from the plane where the middle position of the winding roller 15 is located.

[0030] The adjusting part includes a screw 17 slidably arranged on the bracket 8, a threaded sleeve 18 rotatably connected to the bracket 8, and a limiting block 19. The threaded rod peripheral wall is provided with a limiting groove 20 for sliding the limiting block 19. Both ends of the limiting groove 20 are closed. The limiting block 19 is slidably arranged in the limiting groove 20. The bracket 8 is provided with a sliding hole 21 for sliding the screw 17. The limiting block 19 is fixed in the sliding hole 21. In this embodiment, the two ends of the identification rope 9 will only be offset in the direction along the length direction of the screw 17. Therefore, by comparing the whiteboard 12, by rotating the threaded sleeve 18, after the threaded sleeve 18 and the screw 17 are spirally matched, under the limiting action of the limiting block 19 and the limiting groove 20, the screw 17 cannot rotate and can only move along the length direction of the sliding hole 21. The screw 17 is fixedly connected to the winding frame 14. The screw 17 controls the winding frame 14 to move until the identification rope 9 coincides with the identification line on the whiteboard 12. At this time, the identification rope 9 continues to be wound until the tension sensor 10 reaches the set value.

[0031] The inspection part is used to observe whether the vacuum suction cup 13 is adsorbed and firmly fixed to the straight-line building block 1 and the L-shaped building block 2. The inspection part includes an inspection motor 22, an inspection block 23 fixedly connected to the output end of the inspection motor 22, a push rod 24 elastically arranged on the inspection block 23, an electromagnet 25, a curing group 26 and a softening group 27. The inspection part is arranged on any building block. Of course, the parts corresponding to the inspection block 23 can be fixed to the building block by bolts. The inspection block 23 is provided with a through hole for the identification rope 9 to pass through, and the bottom wall of the through hole is provided with a curing hole 28. The push rod 24 ejects the identification rope 9 into the curing hole 28, the curing group 26 injects glue into the curing hole 28, and the softening group 27 injects glue into the curing hole 28. A softener for softening the glue is injected into the curing hole 28. After the inspection block 23 is firmly connected to the identification rope 9, the inspection motor 22 is controlled to wind the identification rope 9 to detect whether the vacuum suction cup 13 is firmly fixed to the block. A push-in hole is provided on the side of the through hole away from the curing hole 28. The end of the push-in rod 24 away from the through hole is fixedly connected with a handle 33. A spring 34 is provided on the outer sleeve of the push-in rod 24. The two ends of the spring 34 are respectively fixedly connected to the handle 33 and the corresponding outer wall of the inspection block 23. The electromagnet 25 is used to adsorb the handle 33. When the electromagnet 25 adsorbs the handle 33, the spring 34 is stretched and deformed, the push-in rod 24 is away from the through hole, and the end of the push-in rod 24 is located in the push-in hole.

[0032] The curing group 26 includes a curing tank and a first nozzle, and the softening group 27 includes a softening tank and a second nozzle. The first nozzle and the second nozzle both pass through the inspection block 23 and extend into the curing hole 28. The curing tank is filled with glue, and the softening tank is filled with a softener, which in this embodiment can be vinegar or alcohol that can be softened by adding water.

[0033] The inspection portion also includes a viewing frame 29 adsorbed on the building block, a pin 30 elastically arranged on the viewing frame 29, a ring 35, a pull rope 36 and a sound piece 37 fixedly connected to the tail end of the pin 30, the tip of the pin 30 abuts against the side wall of the vacuum suction cup 13, the pull rope 36 is fixed on the bracket 8 and passes through the ring 35, the sound piece 37 is fixedly connected to the tail end of the pull rope 36, the sound piece 37 is used to indicate whether the vacuum suction cup 13 is separated from the corresponding building block, the viewing frame 29 is provided with an elastic hole, the pin 30 passes through the elastic hole, the side wall of the pin 30 is fixedly connected with a moving block 31, the side wall of the elastic hole is provided with a moving groove 32, the corresponding side wall of the moving block 31 and the corresponding end inner wall of the moving groove 32 are fixedly connected with an elastic piece, and the sound piece 37 in this embodiment is set as a bell or other parts that can be shaken to make a sound.

[0034] When the vacuum suction cup 13 is detected to be firmly adsorbed and fixed, the electromagnet 25 is powered off. Under the action of the spring 34, the push rod 24 ejects the identification rope 9 into the curing hole 28, and the glue in the curing tank is sprayed into the curing hole 28. The glue adheres the push rod 24 and the identification rope 9 to the curing hole 28, thereby achieving the fixing effect of the inspection block 23 and the identification rope 9. The inspection motor 22 is controlled to rotate the inspection block 23. The inspection block 23 continuously applies pressure to the identification rope 9 during the rotation process. At this time, the tension of the tension sensor 10 continues to increase until it reaches the tension value applied to the identification rope 9 after the adjacent blocks are separated. Before this, if the vacuum suction cup 13 is separated from the corresponding block, the ejector pin 30 is pushed by the elastic member to start working, and the pull rope 36 drives the sound member 37 to make a sound, warning the construction personnel that the vacuum suction cup 13 is not firmly fixed and needs to be re-adsorbed and fixed or the vacuum suction cup 13 needs to be replaced; if the sound member 37 does not make a sound, it proves that the vacuum suction cup 13 is firmly adsorbed.

[0035] The implementation principle of the construction method of a prefabricated UHPC cavity module concrete shear wall in the embodiment of the present application is as follows: after comparing the whiteboard 12, by rotating the threaded sleeve 18, after the threaded sleeve 18 and the screw 17 are spirally matched, under the limiting action of the limiting block 19 and the limiting groove 20, the screw 17 cannot rotate and can only move along the length direction of the sliding hole 21, and the screw 17 is fixedly connected to the winding frame 14. The screw 17 controls the movement of the winding frame 14 until the identification rope 9 coincides with the identification line on the whiteboard 12, and then continues to wind the identification rope 9 until the tension sensor 10 reaches the set value; when the identification rope 9 is installed, at this time, by moving the whiteboard 12 to a position abutting the identification rope 9, the length dimension of the identification line on the whiteboard 12 is smaller than the length dimension of the identification rope 9, and by comparing the identification line with the identification rope 9, it can be obtained whether the identification rope 9 is parallel to the plane where the I-shaped building block 1 and the L-shaped building block 2 are located.

[0036] In the initial state, the tension sensor 10 sets a fixed value, that is, the tension between the two blocks is a constant value. As long as the I-shaped block 1 or the L-shaped block 2 is shifted in position, the marking rope 9 is subjected to a change in the tension of the I-shaped block 1 and the L-shaped block 2. As long as the tension on the tension sensor 10 is less than or greater than the set value, the buzzer 11 will be triggered to sound an alarm, thereby alerting the construction personnel that the I-shaped block 1 and the L-shaped block 2 are shifted in position and need to be reinstalled. Of course, in this embodiment, if the tension of the tension sensor 10 changes due to a slight shake between the blocks, it is within the allowable error range and will not trigger the buzzer 11 to sound.

[0037] When the vacuum suction cup 13 is detected to be firmly adsorbed and fixed, the electromagnet 25 is powered off. Under the action of the spring 34, the push rod 24 ejects the identification rope 9 into the curing hole 28, and the glue in the curing tank is sprayed into the curing hole 28. The glue bonds the push rod 24 and the identification rope 9 into the curing hole 28, thereby achieving the fixing effect of the inspection block 23 and the identification rope 9. The inspection motor 22 is controlled to rotate the inspection block 23. The inspection block 23 continuously applies pressure to the identification rope 9 during the rotation process. At this time, the tension of the tension sensor 10 continues to increase until it reaches the tension value applied to the identification rope 9 after the adjacent blocks are separated. Before this, if the vacuum suction cup 13 is separated from the corresponding block, the ejector pin 30 is pushed by the elastic member to start working, and the pull rope 36 drives the sound member 37 to make a sound, warning the construction personnel that the vacuum suction cup 13 is not firmly fixed and needs to be re-adsorbed and fixed or the vacuum suction cup 13 needs to be replaced.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A prefabricated UHPC cavity module concrete shear wall, characterized in that: The invention comprises a straight-line building block (1), an L-shaped building block (2) and a T-shaped building block (3), wherein each of the straight-line building block (1), the L-shaped building block (2) and the T-shaped building block (3) is provided with a partition plate (4) for partitioning concrete, and the straight-line building block (1), the L-shaped building block (2) and the T-shaped building block (3) are connected to each other in the horizontal direction via a slot plate (6) (5).

2. The prefabricated UHPC cavity module concrete shear wall according to claim 1, characterized in that: The I-shaped building block (1), the L-shaped building block (2) and the T-shaped building block (3) are all provided with a U-shaped slot (6) on the top and a key slot (7) adapted to the slot (6) on the bottom. The slot (6) and the key slot (7) are both the same in length as the corresponding I-shaped building block (1), the L-shaped building block (2) or the T-shaped building block (3).

3. A construction method of a prefabricated UHPC cavity module concrete shear wall, based on the prefabricated UHPC cavity module concrete shear wall according to any one of claims 1 to 2, characterized in that: The steps include: S1. Prefabricate molds in the factory, make straight-shaped, L-shaped and T-shaped molds respectively, use ultra-high performance concrete UHPC for pouring, cover the surface with a protective film and spray water regularly to keep the concrete surface moist, and demould after reaching a certain strength; S2, transporting prefabricated concrete blocks to the construction site; S3, semicircular slots (6) are opened on the front panel of the concrete block and arranged symmetrically in the upper and lower and left and right directions. The upper slot (6) opens upward and the lower slot opens downward. When the upper and lower blocks are spliced, a circular shape is formed to place the steel bars. S4. During construction, the first batch of masonry needs to be slurried on the ground, and the "matching holes and staggered seams" splicing method is adopted, that is, when splicing, the upper and lower skins are aligned with the holes, and the U-shaped card slot (6) is aligned with the protruding key slot (7) below for splicing. If it does not meet the requirements, it can be cut and adjusted on site; S5. Pass the transverse steel bars through the circular steel bar holes, seal the gaps with mortar, insert steel bars above the cavities, tie and overlap them, and form a steel bar skeleton; S5, when reinforcing the shear wall, you can put the blocks on one side of the old shear wall, connect the blocks and the old shear wall with bolts, and finally pour concrete into the cavity in layers; S6. During the construction process, the expansion of the upper and lower blocks needs to be monitored in real time. If positional displacement occurs between adjacent blocks, the upper and lower adjacent I-shaped blocks (1), L-shaped blocks (2) or T-shaped blocks (3) need to be pulled in time.

4. The construction method of a prefabricated UHPC cavity module concrete shear wall according to claim 3, characterized in that: In S6, a detection mechanism is used to detect the positional relationship between the upper and lower building blocks. The detection mechanism comprises two brackets (8), an adsorption component, and an identification component for identifying whether the upper and lower building blocks are offset from each other. The adsorption component is used to achieve adsorption and fixation of the two brackets (8) to the corresponding building blocks.

5. The construction method of a prefabricated UHPC cavity module concrete shear wall according to claim 4, characterized in that: The identification component comprises an identification rope (9), a tension sensor (10), a winding portion for winding the identification rope (9), and a judgment portion for judging whether the identification rope (9) is parallel to a corresponding building block. The two ends of the identification rope (9) are respectively connected by the two winding portions, that is, the identification rope (9) is in a vertical state in an initial state. The tension sensor (10) is used to connect the identification rope (9) located between the two winding portions. The tension sensor (10) is electrically connected to a buzzer (11).

6. The construction method of a prefabricated UHPC cavity module concrete shear wall according to claim 5, characterized in that: The judging unit comprises a whiteboard (12) slidably arranged on any one of the brackets (8), a plurality of marking lines are displayed on the whiteboard (12), and the marking rope (9) is in a vertical state if it coincides with one of the marking lines.

7. The construction method of a prefabricated UHPC cavity module concrete shear wall according to claim 5, characterized in that: The adsorption assembly comprises two vacuum suction cups (13), a viewing portion for judging whether the corresponding building blocks of the vacuum suction cups (13) are adsorbed and fixed, and an adjustment portion for adjusting the position of one end of the identification rope (9), and the two brackets (8) are respectively fixedly connected to the two vacuum suction cups (13).

8. The construction method of a prefabricated UHPC cavity module concrete shear wall according to claim 7, characterized in that: The winding part comprises a winding frame (14) movably arranged on the bracket (8), a winding roller (15) rotatably arranged on the winding frame (14) and a winding motor (16); the adjusting part comprises a screw rod (17) slidably arranged on the bracket (8), a threaded sleeve (18) rotatably connected to the bracket (8) and a limiting block (19); a peripheral wall of the threaded rod is provided with a limiting groove (20) for sliding of the limiting block (19); both ends of the limiting groove (20) are closed; the limiting block (19) is slidably arranged in the limiting groove (20); the bracket (8) is provided with a sliding hole (21) for sliding of the screw rod (17); the limiting block (19) is fixed in the sliding hole (21), and the end is fixedly connected to the winding frame (14).

9. The construction method of a prefabricated UHPC cavity module concrete shear wall according to claim 8, characterized in that: The inspection part comprises an inspection motor (22), an inspection block (23) fixedly connected to the output end of the inspection motor (22), an ejection rod (24) elastically arranged on the inspection block (23), an electromagnet (25), a curing group (26) and a softening group (27); the inspection block (23) is provided with a through hole for the identification rope (9) to pass through, the bottom wall of the through hole is provided with a curing hole (28), the ejection rod (24) ejects the identification rope (9) into the curing hole (28), the curing group (26) injects glue into the curing hole (28), and the softening group (27) injects a softener for softening the glue into the curing hole (28); after the inspection block (23) is firmly connected to the identification rope (9), the inspection motor (22) is controlled to wind the identification rope (9) so as to detect whether the vacuum suction cup (13) is firmly fixed to the building block.

10. The construction method of a prefabricated UHPC cavity module concrete shear wall according to claim 9, characterized in that: The inspection portion further comprises an inspection frame (29) adsorbed on the building block, a pin (30) elastically arranged on the inspection frame (29), a ring (35) fixedly connected to the tail end of the pin (30), a pull rope (36) and a sound piece (37), wherein the tip of the pin (30) abuts against the side wall of the vacuum suction cup (13), the pull rope (36) is fixed on the bracket (8) and passes through the ring (35), the sound piece (37) is fixedly connected to the tail end of the pull rope (36), and the sound piece (37) is used to indicate whether the vacuum suction cup (13) is separated from the corresponding building block.

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