Frame type building prefabricated wall and mounting method

Abstract

The invention discloses a frame-type building prefabricated wall and an installation method, and relates to the technical field of building walls.The frame-type building prefabricated wall comprises a prefabricated wall body, the prefabricated wall body is a wall body formed by solidifying concrete pouring steel bar keels, and the bottom wall of the prefabricated wall body is an installation face and internally provided with a grouting sleeve of a grouting channel; an exhaust pipe and a grouting pipe which transversely penetrate out of the side wall of the prefabricated wall are arranged at the upper end and the lower end of the outer wall side of the grouting sleeve correspondingly, the bottom end of the grouting sleeve penetrates out of the inner top wall of the grouting base bin and extends downwards, and the butt joint sleeve is slidably arranged at the bottom end of the grouting sleeve in a sleeving mode and extends out of the mounting face to form a reference inserting end. The reference inserting end is connected with a floor reserved steel bar in an inserting mode, and a grout outlet channel is formed in the circumferential side wall of the butt joint sleeve. The butt-joint sleeve is influenced by the self-weight factor, slides down along the inner wall of the grouting sleeve, extends out of the reference insertion end and then is exposed in the visual field of a worker, whether the reserved reinforcing steel bar is distributed over against the extending reference insertion end up and down or not can be intuitively judged, and a visual mirror does not need to be adopted as a judgment basis.

Description

Technical Field

[0001] The invention relates to the technical field of building walls, in particular to a frame-type building prefabricated wall and an installation method thereof. Background Art

[0002] Prefabricated walls of frame-type buildings are used in reinforced concrete frame structures, lifting slab structures, and beamless floor systems. Existing frame-type buildings have multiple installation holes and multiple vertically arranged steel bars on their walls. The two adjacent walls are connected by connecting the steel bars with the installation holes. In actual construction, a crane is used to lift the wall, and then the reserved installation holes of the prefabricated wall are aligned with the reserved steel bars. The crane lowers the prefabricated wall, and the reserved installation holes of the prefabricated wall are plugged with the reserved steel bars. Then the prefabricated wall is fixed, and the prefabricated wall is fixed to the steel skeleton with expansion bolts or other fixing equipment to ensure the stability and safety of the wall before grouting. Then, the grouting method is used to seal the warehouse, and the matching grouting material is injected from the grouting port. When the vent hole overflows, the vent hole and the grouting hole are blocked. After the grouting material reaches a certain strength, the longitudinal steel bars are connected as a whole.

[0003] During the installation of the prefabricated wall, it is necessary to lift the prefabricated wall to at least 1 meter higher than the installation height, then lower it and make fine adjustments to ensure that the reserved installation holes of the prefabricated wall are plugged in with the reserved steel bars. Therefore, during the descent and fine-tuning process, the crane lowers the prefabricated wall to a height of about 0.5m from the floor installation position, and fine-tunes according to the pre-positioned guide frame and control line. Two operators guide the descent by hand on both sides of the prefabricated wall. When it descends to about 100mm, a worker is required to squat and use a special eyepiece to observe whether the reserved steel bars at the floor installation position and the reserved installation holes of the prefabricated wall are aligned up and down. The special eyepiece uses the principle of mirror reflection to present the reserved installation holes at the bottom of the prefabricated wall on the mirror surface, and the worker then compares the installation hole position reflected by the mirror with the reserved steel bar position. In this process, there is no strict implementation standard for the worker to observe the position with the eyepiece, and the worker relies on the worker's operating experience to judge. Therefore, the angle of the worker holding the eyepiece is deviated, which leads to a deviation in the comparison, affecting the accuracy of the worker's judgment, thereby affecting the efficiency of quickly lowering the prefabricated wall to insert the reserved steel bars into the reserved installation holes. Summary of the invention

[0004] The object of the present invention is to provide a frame-type prefabricated wall and an installation method thereof to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a frame-type prefabricated building wall, comprising:

[0006] Precast wall: a wall formed by pouring concrete and solidifying reinforced keels;

[0007] The bottom wall of the prefabricated wall is a mounting surface, and a grouting seat is recessed in the mounting surface;

[0008] A grouting sleeve with a grouting passage is fixed to the top wall of the grouting seat chamber, and an exhaust pipe and a grouting pipe are respectively provided at the upper end and the lower end of the outer wall side of the grouting sleeve, which pass through the side wall of the prefabricated wall laterally. The bottom end of the grouting sleeve passes through the top wall of the grouting seat chamber and extends downward, and a grouting liquid circulation gap is reserved between the bottom wall of the grouting sleeve and the installation surface;

[0009] The docking sleeve is slidably sleeved on the bottom end of the grouting sleeve. The bottom end of the docking sleeve extends out of the installation surface to form a reference plug-in end. The reference plug-in end is plugged into the reserved steel bars of the floor. After the prefabricated wall is lifted into the air by the hoisting equipment, the docking sleeve is affected by the deadweight factor and slides down along the inner wall of the grouting sleeve. The reference plug-in end of the docking sleeve will protrude from the bottom wall of the installation surface of the prefabricated wall. The reference plug-in end does not contact the end of the reserved steel bar. When the on-site construction workers squat down to check, the end of the reference plug-in end can be completely exposed to the workers' field of vision, so that the workers can intuitively judge whether the reserved steel bars are directly distributed up and down with the extended reference plug-in end, without the need for workers to use eyeglasses for reference. The circumferential side wall of the docking sleeve is provided with a slurry outlet channel.

[0010] In a further embodiment, the diameter of the upper end of the grouting sleeve is reduced to form a threaded docking portion, and the threaded docking portion is internally threaded with reinforcing steel bars, which extend longitudinally inside the prefabricated wall to the upper end surface of the prefabricated wall.

[0011] In a further embodiment, a plurality of transverse shear steel plates are disposed outside the reinforcing steel bars, the transverse shear steel plates and the reinforcing steel bars are thickened in the longitudinal direction, the transverse shear steel plates are provided with mounting holes, longitudinal steel bars are inserted into the mounting holes, and the transverse shear steel plates and the longitudinal steel bars form a reinforcement frame on the sides of the reinforcing steel bars.

[0012] In a further embodiment, a sliding block is provided at the bottom end of the inner circumferential side wall of the grouting passage, and a guiding hole for slidingly engaging with the sliding block is provided on the circumferential side wall of the docking sleeve.

[0013] In a further embodiment, a limit piece is fixed to the side wall at the intersection of the grouting sleeve and the threaded joint portion, and the limit piece contacts the end of the reinforcing steel bar that is rotated and screwed in, preventing the reinforcing steel bar from being screwed into the grouting passage without restriction.

[0014] In a further embodiment, the limiting member is a transverse plate, and both ends of the transverse plate are fixedly connected to the inner circumferential side wall of the grouting passage.

[0015] In a further embodiment, the limiting member is a reinforcement block, which is fixed to the upper end of the inner wall of the grouting passage, and the side wall of the reinforcement block is provided with a guide slope, the upper end width of the guide slope is greater than the lower end width, and a clamping gap is reserved between the upper end of the guide slope and the inner wall of the grouting passage.

[0016] In a further embodiment, a guide sleeve is fixed to the inner wall of the grouting sleeve, the bottom opening of the guide sleeve is the same as the inner diameter of the grouting passage, and the upper opening of the guide sleeve is reduced to a reduction opening, and the inner diameter of the reduction opening is larger than the outer diameter of the reserved steel bars.

[0017] In a further embodiment, a truncated cone-shaped expansion portion with a hollow structure extends from the bottom end of the docking sleeve.

[0018] Preferably, the installation method of the prefabricated wall of a frame-type building based on the above-mentioned method comprises the following steps:

[0019] A1. After the prefabricated wall is lifted into the air by the hoisting equipment, the butt joint sleeve slides down along the inner wall of the grouting sleeve due to its own weight, and the reference plug-in end of the butt joint sleeve protrudes from the bottom wall of the installation surface of the prefabricated wall, and the end of the reference plug-in end can be completely exposed to the workers' field of vision;

[0020] A2. A vertical gap is left between the reference splice end and the end of the reserved steel bar, so that workers can visually judge whether the reserved steel bar is aligned with the extended reference splice end, and can also make fine adjustments to the position of the prefabricated wall or the bent part of the reserved steel bar;

[0021] A3. Lower the prefabricated wall, and the reference plug-in end is accurately placed outside the reserved steel bars. The reference plug-in end contacts the floor installation position before the installation surface of the prefabricated wall. Continue to lower the prefabricated wall, and the height of the reference plug-in end does not change. The docking sleeve slides relative to the inner wall of the grouting passage, and the upper part of the docking sleeve gradually slides into the grouting passage until the installation surface of the prefabricated wall fits the floor installation position, and the bottom wall of the reference plug-in end of the docking sleeve is flush with the installation surface of the prefabricated wall.

[0022] A4. After the quick-hardening non-shrinkage grouting material is injected into the grouting pipe, it will be injected into the grouting seat from the slurry outlet channel until the entire grouting passage is finally filled. The grouting pipe and the exhaust pipe are plugged with rubber plugs, and the quick-hardening non-shrinkage grouting material in the grouting passage is waited for to solidify to form an integral wall.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] After the present invention utilizes the lifting equipment to lift the prefabricated wall into the air, the docking sleeve is affected by the deadweight factor and slides down along the inner wall of the grouting sleeve. The reference plug-in end of the docking sleeve protrudes from the bottom wall of the installation surface of the prefabricated wall, that is, after the reference plug-in end is extended, it is exposed to the workers' field of vision, and it can be intuitively judged whether the reserved steel bars are vertically aligned with the extended reference plug-in end. The workers perform horizontal correction of the position of the prefabricated wall, or correct the bent reserved steel bars, to ensure that when the prefabricated wall is finally lowered, the reference plug-in end can be accurately put on the outside of the reserved steel bars, without the need for workers to use eyeglasses for reflection for reference, thereby improving the installation efficiency of the prefabricated wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 It is a partial cross-sectional view of the side structure of the prefabricated wall of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the grouting sleeve of the present invention;

[0028] Figure 4 It is a schematic diagram of the docking sleeve structure of the present invention;

[0029] Figure 5 It is a cross-sectional view of the grouting sleeve structure of the present invention;

[0030] Figure 6 It is a structural cross-sectional view of a second embodiment of a grouting sleeve of the present invention;

[0031] Figure 7 It is a structural cross-sectional view of a third embodiment of a grouting sleeve of the present invention;

[0032] Figure 8 It is a schematic diagram of a further improved structure of the grouting sleeve and the docking sleeve of the present invention;

[0033] Fig. 9 It is a schematic diagram of the split connection between the butt sleeve and the reserved steel bar of the present invention.

[0034] In the figure: 1. prefabricated wall; 11. grouting seat; 12. positioning groove 1; 13. positioning groove 2; 2. grouting sleeve; 21. exhaust pipe; 22. grouting pipe; 23. docking sleeve; 24. threaded docking part; 25. grouting channel; 26. slider; 27. grouting passage; 28. cross plate; 29. ​​reinforcement block; 210. truncated cone-shaped expansion part; 211. guide sleeve; 3. reinforcement steel bar; 31. transverse shear steel plate; 32. longitudinal steel bar. DETAILED DESCRIPTION

[0035] The following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment, this embodiment provides a frame type building prefabricated wall 1, such as Figure 1 As shown, including:

[0037] Precast wall 1, precast wall 1 is a wall formed by pouring concrete and solidifying steel keels. The material strength of precast wall 1 here is: concrete strength (such as C30, ft=1.43N / mm², fc=14.3N / mm²), precast wall 1 steel keel strength (such as HRB400, fyv=360N / mm², fy=360N / mm²); steel keel arrangement: such as the spacing of horizontal distribution bars s=200mm, area Ash=100mm², used for frame building. Figure 1 As shown, a plurality of positioning grooves 12 and a plurality of positioning grooves 13 are respectively provided on the upper and lower side walls of the prefabricated wall 1. The positioning grooves 12 and the positioning grooves 13 are both used to connect the triangular support frame to keep the prefabricated wall 1 in a vertical and stable state after installation to prevent it from tipping over.

[0038] The bottom wall of the prefabricated wall 1 is a mounting surface, and a grouting seat 11 is recessed on the mounting surface. Figure 1 As shown, the installation surface is used to connect with the floor installation position. In order to enhance the connection strength between the prefabricated wall 1 and the floor installation position, quick-hardening non-shrinkage grouting material is poured into the grouting seat bin 11. The quick-hardening non-shrinkage grouting material solidifies to seamlessly connect the prefabricated wall 1 with the floor installation position.

[0039] The grouting sleeve 2 with a grouting passage 27 is fixed to the top wall of the grouting chamber 11. The upper and lower ends of the outer wall of the grouting sleeve 2 are respectively provided with an exhaust pipe 21 and a grouting pipe 22 that pass through the side wall of the prefabricated wall 1 horizontally. The bottom end of the grouting sleeve 2 passes through the top wall of the grouting chamber 11 and extends downward. Figure 1 , Figure 2 and Figure 3As shown, the height of the grouting pipe 22 is lower than the height of the exhaust pipe 21, and the grouting pipe 22 is connected to the slurry delivery pump pipeline. The quick-hardening non-shrinkage grouting material is introduced into the grouting passage 27 from the grouting pipe 22, and the quick-hardening non-shrinkage grouting material gradually increases the slurry filling height from the bottom end of the grouting passage 27. This is to use the gravity of the quick-hardening non-shrinkage grouting material to gradually compact the quick-hardening non-shrinkage grouting material from the bottom end of the grouting passage 27 upward as the slurry liquid level gradually rises, so as to avoid the generation of bubbles. At the same time, as the slurry liquid level gradually rises, the air in the grouting passage 27 will be discharged from the exhaust pipe 21, and the pressure difference between the space inside the grouting passage 27 and the external space is the same, ensuring smooth and unobstructed grouting.

[0040] like Figure 2 As shown, the diameter of the upper end of the grouting sleeve 2 is reduced to form a threaded joint portion 24, and the threaded joint portion 24 is threadedly connected with a reinforcing steel bar 3, which extends longitudinally inside the prefabricated wall 1 to the upper end surface of the prefabricated wall 1. A plurality of transverse shear steel plates 31 are arranged on the outer surface of the reinforcing steel bar 3, and the transverse shear steel plates 31 and the reinforcing steel bar 3 are arranged at a position thickened in the longitudinal direction. The transverse shear steel plates 31 are provided with mounting holes, and longitudinal steel bars 32 are inserted into the mounting holes. The transverse shear steel plates 31 and the longitudinal steel bars 32 form a reinforcement frame on the side of the reinforcing steel bar 3.

[0041] A gap for slurry flow is reserved between the bottom wall of the grouting sleeve 2 and the installation surface, and there is a height difference between the bottom end of the grouting sleeve 2 and the installation surface. The purpose is to form a closed space between the internal space of the grouting seat 11 and the floor installation position when the prefabricated wall 1 is lowered and seated at the floor installation position, and the bottom wall of the grouting sleeve 2 does not contact the floor surface, so as to avoid the bottom end opening of the grouting passage 27 being blocked and the fast-hardening non-shrinkage grouting material cannot be transported into the grouting seat 11. As the fast-hardening non-shrinkage grouting material in the grouting passage 27 is continuously poured, when the slurry filling height reaches the horizontal height of the exhaust pipe 21, the fast-hardening non-shrinkage grouting material is discharged from the exhaust pipe 21, and the exhaust pipe 21 is sealed with a rubber plug, and then the slurry delivery pump pipeline and the grouting pipe 22 are separated, and the grouting pipe 22 is sealed with a rubber plug.

[0042] It also includes a docking sleeve 23, which is slidably sleeved on the bottom end of the grouting sleeve 2. A slider 26 is provided at the bottom end of the inner circumferential side wall of the grouting passage 27. A guide hole is provided on the circumferential side wall of the docking sleeve 23 for sliding engagement with the slider 26. The docking sleeve 23 slides relative to the slider 26 using the guide hole. The bottom end of the docking sleeve 23 extends out of the mounting surface to form a reference plug-in end, which is plugged into the reserved steel bars of the floor. Figure 2 , Figure 3 and Figure 4 As shown, after the prefabricated wall 1 is lifted into the air by the hoisting equipment, the docking sleeve 23 slides down along the inner wall of the grouting sleeve 2 due to the deadweight factor, and the reference plug end of the docking sleeve 23 protrudes from the bottom wall of the installation surface of the prefabricated wall 1. The length of the reference plug end is as shown in FIG. Figure 2 As shown in S, the length of S is 5-10cm. The prefabricated wall 1 is hoisted by hoisting equipment to the position 30cm above the floor installation position. Normally, the length of the reserved steel bars at the floor installation position is 10-20cm. The reference plug-in end can approach the floor installation position from above the reserved steel bars. To ensure that the reference plug-in end does not contact the end of the reserved steel bars, at least 5cm vertical gap should be retained. In this way, when the on-site construction workers squat to check, the end of the reference plug-in end can be completely exposed to the workers' field of vision. The reference plug-in end and the reserved steel bar diameter are within the vertical height range of 5cm, which is convenient for workers to intuitively judge whether the reserved steel bars are directly opposite to the extended reference plug-in end, without the need for workers to use eyeglasses for reflection for reference.

[0043] After determining whether the reference plug-in end and the reserved steel bars are aligned with each other up and down, it is necessary to continue to lower the prefabricated wall 1, and the reference plug-in end is accurately put on the outside of the reserved steel bars, and at the same time, the prefabricated wall 1 is placed on the floor installation position. During the lowering process, as the height of the prefabricated wall 1 is continuously lowered, the height of the bottom wall of the reference plug-in end is also gradually lowered, but the reference plug-in end will definitely contact the floor installation position before the installation surface of the prefabricated wall 1. Therefore, when the bottom wall of the reference plug-in end contacts the floor installation position, the prefabricated wall 1 is continued to be lowered, and the height of the reference plug-in end no longer changes. At this time, the outer wall of the docking sleeve 23 and the inner wall of the grouting passage 27 of the grouting sleeve 2 slide relative to each other, that is, the docking sleeve The upper part of the tube 23 will gradually slide into the grouting passage 27 until the installation surface of the prefabricated wall 1 is aligned with the floor installation position. At this time, the bottom wall of the reference plug-in end of the docking sleeve 23 is flush with the installation surface of the prefabricated wall 1, and the docking sleeve 23 will not be completely retracted into the grouting sleeve 2. The reference plug-in end of the docking sleeve 23 will be partially located in the grouting seat 11, so a grouting channel 25 is opened on the circumferential side wall of the docking sleeve 23. In this way, the grouting channel 25 will establish a grouting passage with the grouting seat 11. After the fast-hardening non-shrinkage grouting material is injected from the grouting pipe 22, the fast-hardening non-shrinkage grouting material will be injected into the grouting seat 11 from the grouting channel 25. After the upper part of the docking sleeve 23 is retracted into the grouting passage 27, the wall thickness of the bottom end of the grouting sleeve 2 is thickened, which is conducive to enhancing the shear strength of the grouting sleeve 2.

[0044] In summary, the specific installation method of the prefabricated wall 1 is as follows: at least two lifting hooks are cast in advance on the upper end of the prefabricated wall 1, and the prefabricated wall 1 is lifted by cooperating with the lifting hooks and the rope hooks of the lifting equipment; the ground should be flat, and the foundation flatness error should not exceed 3mm, and the debris and dust on the surface of the foundation should be cleared; the exposed reserved steel bars also need to be corrected: the verticality, positioning and height of the steel bars are checked using homemade steel bar clamps, and the steel bars that do not meet the requirements are corrected. Then the prefabricated wall 1 is lifted, and when the wall is lowered to a vertical height of about 50 cm from the floor installation position, two operators are selected to guide the descent by hand according to the pre-positioned guide frame and control line fine-tuning, and when it descends to a vertical height of 20 cm, the reference plug-in end of the docking sleeve 23 will protrude from the bottom wall of the installation surface of the prefabricated wall 1, and the reference plug-in end will not contact the end of the reserved steel bar, and the vertical gap is 5 cm. When the on-site construction workers squat down to check, the end of the reference plug-in end can be fully exposed to the workers' field of vision, and they can intuitively judge whether the reserved steel bar is directly opposite to the extended reference plug-in end. Once it is directly opposite, the prefabricated wall 1 continues to be lowered, and the height no longer changes after the bottom wall of the reference plug-in end contacts the floor installation position. At this time, the outer wall of the docking sleeve 23 slides relative to the inner wall of the grouting passage 27 of the grouting sleeve 2, that is, the upper part of the docking sleeve 23 will gradually slide into the grouting passage 27 until the installation surface of the prefabricated wall 1 fits the floor installation position.

[0045] Subsequently, after the prefabricated wall 1 is lowered and seated at the floor installation position, a closed space is formed between the internal space of the grouting seat bin 11 and the floor installation position, and a plurality of reserved holes for reinforcement members 1 are provided at a quarter of the distance from the upper end of the side wall of the prefabricated wall 1, and a plurality of reserved holes for reinforcement members 2 are provided at a quarter of the distance from the bottom end of the side wall of the prefabricated wall 1. The reserved holes for reinforcement members are used for oblique supports, one end of the oblique support is connected to the reserved holes for reinforcement members, and the other end is connected to the floor. At the same time, according to the vertical angle of the prefabricated wall 1 relative to the floor, the verticality of the prefabricated wall 1 is corrected by adjusting the upper and lower oblique supports to ensure that the error is within 3° to ensure the verticality of the installation of the prefabricated wall 1. At this time, the grouting operation is carried out, the grouting pipe 22 is connected to the slurry delivery pump pipeline, the quick-hardening non-shrinkage grouting material is introduced into the grouting passage 27 from the grouting pipe 22, and the quick-hardening non-shrinkage grouting material will be injected into the grouting seat chamber 11 from the slurry outlet channel 25. When the grouting seat chamber 11 is full, the quick-hardening non-shrinkage grouting material gradually increases the slurry filling height from the bottom end of the grouting passage 27. As the quick-hardening non-shrinkage grouting material in the grouting passage 27 is continuously poured into, when the slurry filling height reaches the horizontal height of the exhaust pipe 21, the quick-hardening non-shrinkage grouting material is discharged from the exhaust pipe 21, and the exhaust pipe 21 is sealed with a rubber plug. Subsequently, the slurry delivery pump pipeline and the grouting pipe 22 are separated, and the grouting pipe 22 is sealed with a rubber plug. After waiting for 1-2 days, the quick-hardening non-shrinkage grouting material in the grouting passage 27 is solidified.

[0046] During the entire installation process, workers do not need to use a sight glass for reference, thereby improving the installation efficiency of the prefabricated wall 1 .

[0047] During the above process, if the reference plug-in end and the reserved steel bars are misaligned up and down, there must be at least two construction workers on site, who should be located at the two narrow side walls of the prefabricated wall 1, and slightly push the prefabricated wall 1 laterally to perform lateral correction operations on the prefabricated wall 1. When the reference plug-in end and the reserved steel bars are aligned up and down, the prefabricated wall 1 is lowered by a lifting equipment, and the reference plug-in end is accurately put on the outside of the reserved steel bars until the prefabricated wall 1 is located at the floor installation position.

[0048] If the reference plug-in end and the reserved steel bars are distributed vertically opposite each other, but the end of the reserved steel bars is bent during the construction process, resulting in the end of the reserved steel bars being unable to maintain a vertical upward distribution state, then during the lowering process of the reference plug-in end, it cannot be smoothly and unobstructedly put on the outside of the reserved steel bars, the on-site workers can use a hand-held hammer to knock in the opposite direction of the bent part of the bent reserved steel bars to correct the bending position to ensure that when the prefabricated wall 1 is finally lowered, the reference plug-in end is accurately put on the outside of the reserved steel bars.

[0049] In this embodiment, if Figure 2 and Figure 5 As shown, a limiter is fixed on the side wall where the grouting sleeve 2 intersects with the threaded joint 24, and the limiter contacts the end of the reinforcing steel bar 3 that is rotated and screwed in, preventing the reinforcing steel bar 3 from being screwed into the grouting passage 27 without restriction. The limiter is a horizontal plate 28, and both ends of the horizontal plate 28 are fixedly connected to the inner circumferential side wall of the grouting passage 27, and the upper side wall of the limiter horizontal plate 28 prevents the reinforcing steel bar 3 from being rotated and screwed into the grouting passage 27 without restriction. Here, the limiter horizontal plate 28 serves as a limit reference, and when the reinforcing steel bar 3 cannot be rotated, the worker can know that the end of the reinforcing steel bar 3 has been attached to the upper side wall of the limiter horizontal plate 28, indicating that the installation of the reinforcing steel bar 3 has reached the preset position.

[0050] In addition, Figure 7 As shown, the limiter can also be set as a reinforcing block 29, which is fixed to the upper end of the inner wall of the grouting passage 27. The side wall of the reinforcing block 29 is provided with a guiding slope, the upper end width of the guiding slope is greater than the lower end width, and a clamping gap is reserved between the upper end of the guiding slope and the inner wall of the grouting passage 27. Here, the upper end surface of the reinforcing block 29 is used as a limit reference. When the reinforcing steel bar 3 cannot be rotated, the worker can know that the end of the reinforcing steel bar 3 is already in contact with the upper end surface of the reinforcing block 29, indicating that the installation of the reinforcing steel bar 3 has reached the preset position.

[0051] Another function of the reinforcement block 29 is to thicken the inner wall of the grouting sleeve 2 to enhance the shear resistance of the grouting sleeve 2. The reserved steel bars of the floor are inserted into the grouting passage 27. As the prefabricated wall 1 is continuously lowered, after the end of the reserved steel bars touches the guide slope, the guide slope slides down relative to the reserved steel bars by relying on the overall weight of the entire prefabricated wall 1. At the same time, the end of the reserved steel bars is bent. The direction of the reserved steel bars before touching the guide slope is as follows: Figure 7 The direction indicated by Q2 is the same as the height of the docking sleeve 23, and the upper part of the docking sleeve 23 is not affected by the retraction of the upper part of the docking sleeve 23 into the grouting sleeve 2. Figure 7 The direction indicated by Q3 is as follows. When it is specifically stated here, the lateral distance between the upper end surface of the reinforcing block 29 and the inner wall of the grouting sleeve 2 is as follows: Figure 7 As shown in Q4, the width of Q4 is equal to the diameter of the reserved steel bars, that is, after the reserved steel bars are bent relative to the guide slope, they will eventually be stuck in the width indicated by Q4, and the depth of the grouting sleeve 2 and the reserved steel bars will be maximized, that is, the reinforcement block 29 and the reserved steel bars are staggered and connected, and the reserved steel bars cooperate with the reinforcement block 29 to enhance the overall shear strength of the grouting sleeve 2.

[0052] In addition, if Figure 1 As shown, a plurality of U-shaped steel hoops are inserted into the two narrow side walls and the upper end surface of the precast wall 1, and a sleeve space is formed between the inner space of the U-shaped steel hoops and the narrow side walls of the precast wall 1. The sleeve space is inserted into the reserved steel bars of the floor to form a side support skeleton, and the side support skeleton is poured with concrete to form a reinforced beam.

[0053] In this embodiment, in addition to setting the reinforcement block 29 in the grouting passage 27, a guide sleeve 211 may be fixed to the inner wall of the grouting sleeve 2, and the guide sleeve 211 is used to replace the reinforcement block 29 to enhance the overall shear strength of the grouting sleeve 2. Figure 6 As shown, the bottom opening of the guide sleeve 211 is the same as the inner diameter of the grouting passage 27, and the upper opening of the guide sleeve 211 is reduced to a reduced opening, and the inner diameter of the reduced opening is larger than the outer diameter of the reserved steel bar. The grouting operation adopts the method of pouring from bottom to top, which is to avoid bubbles in the poured slurry, resulting in the overall structural strength after solidification failing to meet the preset requirements. Therefore, by adding a guide sleeve 211 with a small upper opening and a large lower opening, the flow rate of the slurry flowing from bottom to top is reduced to achieve the purpose of compression during the flow process and avoid the generation of gas in the slurry.

[0054] According to the process of quick-hardening non-shrinkage grouting material entering a smaller opening from a larger opening, the main thing to be measured is the flow rate and pressure changes of the quick-hardening non-shrinkage grouting material. When the method of entering a smaller opening from a larger opening is adopted, the relationship between the flow rate and the cross-sectional area is calculated as follows: Q=vA, where the flow rate (Q) is the volume of fluid passing through a certain cross section per unit time, (v) is the flow velocity, and (A) is the cross-sectional area. Figure 6 As shown, the inner diameter of the reduced port is X1, the diameter of the reserved steel bar is X2, and the gap between the reserved steel bar and the reduced port is X1-X2, which is the actual caliber of the slurry flowing out. The inner diameter of the bottom opening of the guide sleeve 211 is X3, and the gap between the reserved steel bar and the bottom opening of the guide sleeve 211 is X3-X2, which is the actual caliber of the slurry flowing in. When the delivery pressure of the delivery pump to deliver the fast-hardening non-shrinkage grouting material remains unchanged, the flow rate (v) remains unchanged. When the cross-sectional area decreases (i.e., discharged from a small port) (i.e., X1-X2 is less than the value of X3-X2), the flow rate (Q) will decrease. It can be seen from this that the amount of fast-hardening non-shrinkage grouting material discharged from the reduced port becomes less. Then, when the delivery pressure remains unchanged, the fast-hardening non-shrinkage grouting material will be compressed before the slurry is discharged, thereby discharging gas.

[0055] In addition, the reference plug-in end of the docking sleeve 23 is further optimized and improved, such as Figure 8 and Fig. 9 As shown, a truncated cone-shaped expansion portion 210 with a hollow structure extends from the bottom end of the docking sleeve 23. By adding the truncated cone-shaped expansion portion 210, the opening between the reference plug-in end of the docking sleeve 23 and the reserved steel bars can be enlarged. This reduces the frequency of workers correcting the orientation of the prefabricated wall 1 or the reserved steel bars on site. As long as the reserved steel bars are located within the coverage of the truncated cone-shaped expansion portion 210, there is no need to correct the position and the prefabricated wall 1 can be directly lowered.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated wall of a frame building, characterized in that: include: Prefabricated wall (1), the prefabricated wall (1) is a wall formed by pouring concrete and solidifying reinforced keels; The bottom wall of the prefabricated wall (1) is a mounting surface, and a grouting seat (11) is recessed in the mounting surface; A grouting sleeve (2) having a grouting passage (27) therein is fixed to the inner top wall of the grouting seat chamber (11); an exhaust pipe (21) and a grouting pipe (22) are respectively provided at the upper end and the lower end of the outer wall side of the grouting sleeve (2) and pass through the side wall of the prefabricated wall (1) in a transverse direction; the bottom end of the grouting sleeve (2) passes through the inner top wall of the grouting seat chamber (11) and extends downward, and a grouting liquid circulation gap is reserved between the bottom wall of the grouting sleeve (2) and the mounting surface; The docking sleeve (23) is slidably sleeved on the bottom end of the grouting sleeve (2), the bottom end of the docking sleeve (23) protrudes from the installation surface to form a reference plug-in end, the reference plug-in end is plugged into the reserved steel bars of the floor, and a grouting channel (25) is provided on the circumferential side wall of the docking sleeve (23).

2. The frame-type prefabricated building wall according to claim 1 is characterized in that: The diameter of the upper end of the grouting sleeve (2) is reduced to form a threaded butt joint portion (24), the threaded butt joint portion (24) is internally threadedly connected with a reinforcing steel bar (3), and the reinforcing steel bar (3) extends longitudinally inside the prefabricated wall (1) to the upper end surface of the prefabricated wall (1).

3. The frame-type prefabricated building wall according to claim 2 is characterized in that: The reinforcing steel bars (3) are covered with a plurality of transverse shear steel plates (31); the transverse shear steel plates (31) and the reinforcing steel bars (3) are thickened in the longitudinal direction at the locations where they are covered; the transverse shear steel plates (31) are provided with mounting holes, and longitudinal steel bars (32) are inserted into the mounting holes; the transverse shear steel plates (31) and the longitudinal steel bars (32) form a reinforcement frame on the sides of the reinforcing steel bars (3).

4. The frame-type prefabricated building wall according to claim 1, characterized in that: A sliding block (26) is provided at the bottom end of the inner circumferential side wall of the grouting passage (27), and a guide hole for slidingly engaging with the sliding block (26) is provided on the circumferential side wall of the docking sleeve (23).

5. The frame type building prefabricated wall according to claim 2, characterized in that: A limiting member is fixed to the side wall of the intersection of the grouting sleeve (2) and the threaded joint portion (24), and the limiting member contacts the end of the reinforcing steel bar (3) that is rotated and screwed in, preventing the reinforcing steel bar (3) from being screwed into the grouting passage (27) without restriction.

6. The frame type building prefabricated wall according to claim 5, characterized in that: The limiting member is a transverse plate (28), and both ends of the transverse plate (28) are fixedly connected to the inner circumferential side wall of the grouting passage (27).

7. The frame-type prefabricated building wall according to claim 5, characterized in that: The limiting member is a reinforcing block (29), the reinforcing block (29) being fixed to the upper end of the inner wall of the grouting passage (27), the side wall of the reinforcing block (29) being provided with a guiding inclined surface, the upper end width of the guiding inclined surface being greater than the lower end width, and a clamping gap being reserved between the upper end of the guiding inclined surface and the inner wall of the grouting passage (27).

8. The frame type building prefabricated wall according to claim 1, characterized in that: A guide sleeve (211) is fixed to the inner wall of the grouting sleeve (2); the bottom opening of the guide sleeve (211) has the same inner diameter as the grouting passage (27); the upper opening of the guide sleeve (211) is reduced to form a reduced opening; the inner diameter of the reduced opening is greater than the outer diameter of the reserved steel bar.

9. The frame-type prefabricated building wall according to claim 1, characterized in that: A truncated cone-shaped enlarged portion (210) with a hollow structure extends from the bottom end of the docking sleeve (23).

10. A method for installing a prefabricated wall of a frame type building, using the prefabricated wall of a frame type building according to any one of claims 1 to 9, characterized in that: The steps include: A1. After the prefabricated wall (1) is lifted into the air by means of a lifting device, the butt joint sleeve (23) slides down along the inner wall of the grouting sleeve (2) due to its own weight, and the reference plug-in end of the butt joint sleeve (23) protrudes from the bottom wall of the installation surface of the prefabricated wall (1), and the end of the reference plug-in end can be completely exposed to the workers' field of vision; A2. A vertical gap is left between the reference plug-in end and the end of the reserved steel bar, so that workers can visually judge whether the reserved steel bar is aligned with the extended reference plug-in end, and can also make fine adjustments to the position of the prefabricated wall (1) or the bent part of the reserved steel bar. A3. Lower the prefabricated wall (1), and the reference plug-in end is accurately placed outside the reserved steel bar. The reference plug-in end contacts the floor installation position before the installation surface of the prefabricated wall (1). Continue to lower the prefabricated wall (1). The height of the reference plug-in end does not change. The docking sleeve (23) and the inner wall of the grouting passage (27) slide relative to each other. The upper part of the docking sleeve (23) gradually slides into the grouting passage (27) until the installation surface of the prefabricated wall (1) fits the floor installation position, and the bottom wall of the reference plug-in end of the docking sleeve (23) is flush with the installation surface of the prefabricated wall (1). A4. After the quick-hardening non-shrinkage grouting material is injected into the grouting pipe (22), the quick-hardening non-shrinkage grouting material is injected into the grouting seat (11) from the grouting channel (25) until the entire grouting passage (27) is finally filled. The grouting pipe (22) and the exhaust pipe (21) are plugged with a rubber plug, and the quick-hardening non-shrinkage grouting material in the grouting passage (27) is waited to solidify to form an integral wall.

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