Butt joint of building components with tolerance and construction method

Abstract

The present invention relates to the technical field of building connectors, and in particular to a butt joint of building components with tolerance and a construction method, which includes a first joint, a second joint and a snap plate for connecting building components, wherein the first joint includes a first connecting plate and a first shear rib arranged on the outer surface of the end of the first connecting plate, the second joint includes a second connecting plate and a second shear rib arranged on the outer surface of the end of the second connecting plate, the lower end surface of the first connecting plate abuts against the upper end surface of the second connecting plate, at least one of the upper edge of the first shear rib and the lower edge of the second shear rib is provided with a slope surface, a snap groove is provided in the snap plate, the upper side wall of the snap groove contacts the upper edge of the first shear rib, and the lower side wall contacts the lower edge of the second shear rib, and the snap plate is connected to the first joint and the second joint through a fastener. The present invention has the function of reducing and suppressing the displacement generated when the butt joint of building components is subjected to force, and can eliminate errors during processing and installation.

Description

Technical Field

[0001] The present application relates to the technical field of building connectors, and in particular to a butt joint of building components with tolerance and prestress and a construction method. Background Art

[0002] like Figure 1 As shown, a butt joint structure for connecting building prefabricated components is disclosed, which includes a hoop body 1 and a clamping strip 2. The hoop body 1 is used to connect to the end of the column. A clamping plate 3 is formed on the end of the hoop body 1. A clamping groove 4 for accommodating the clamping plate 3 is provided on the clamping strip 2, wherein the width of the clamping groove 4 is sufficient to accommodate the thickness of two clamping plates 3. By docking two hoop bodies 1, and then connecting the clamping strip 2 with the clamping plate 3, so that the two clamping plates 3 are accommodated in the clamping groove 4, and then connecting the clamping strip 2 with the hoop body 1 or the clamping plate 3 through a bolt 5, the two docking structures can be connected, and finally the two columns are fixedly connected together. Of course, the joint can also be used for connecting building walls, for example.

[0003] With regard to the above-mentioned related technologies, the inventor believes that due to the existence of processing errors, in order to ensure that the slot of the card strip can be inserted into the card plate in practice, the width of the slot needs to be slightly larger than the thickness of the two card plates. When the column connected by the butt joint is subjected to tension, the processing reserved gap between the two will produce a "stress-free displacement section". For low-rise buildings, such as buildings with only two floors in the upper structure, the total displacement after superposition is small due to the small number of joints. However, for the superposition of more than ten to dozens of building floors in the upper structure, the total deformation after the displacement superposition of dozens of connection nodes is not allowed by the building structure design. Summary of the invention

[0004] In order to reduce and suppress the displacement of the nodes of the butt joints of building components when they are under tension, and to ensure that the connection joints have a certain ability to accommodate processing and installation errors, the present application provides a butt joint of building components with tolerance and a construction method.

[0005] The first technical purpose of the present application is to provide a building component butt joint with tolerance, which adopts the following technical solution for connecting building components, including a first joint, a second joint and a plurality of snap plates,

[0006] The first joint includes a first connecting plate and a first anti-shear rib arranged on the outer surface of an end portion of the first connecting plate,

[0007] The second joint includes a second connecting plate and a second anti-shear rib arranged on the outer surface of the end of the second connecting plate,

[0008] The lower end surface of the first connecting plate abuts against the upper end surface of the second connecting plate, and at least one of the upper edge of the first anti-shear rib and the lower edge of the second anti-shear rib is provided with a slope surface, and a snap groove is provided in the snap plate, and the upper side wall of the snap groove contacts the upper edge of the first anti-shear rib, and the lower side wall contacts the lower edge of the second anti-shear rib, and the snap plate is connected to the first joint and the second joint through fasteners.

[0009] There is a gap between the lower edge of the first anti-shear rib and the upper edge of the second anti-shear rib, and there is a gap between the snap plate and the first joint and the second joint. During the process of tightening the fastener, the first joint and the second joint tend to approach each other.

[0010] By adopting the above technical solution, due to the existence of the slope surface, during the process of tightening the fastener, the snap plate will move toward the inside of the first joint and the second joint, and the snap plate will squeeze the first shear rib and the second shear rib, so that the first joint and the second joint have a tendency to approach each other, thereby forming an axial pre-stress at the connection node. The greater the fastener locking force, the greater the pre-stress generated in the connection node. Compared with the prior art, this connection structure can eliminate the dimensional error of the connection during processing, such as the processing error of the distance between the upper side wall and the lower side wall of the snap plate snap groove, the processing error of the distance between the first and second shear rib slope surfaces, etc., so that the butt joint has a certain tolerance capacity.

[0011] Optionally: a downward guide slope is provided on the outer edge of the upper end of the second anti-shear rib.

[0012] Optionally, the fastener includes a plurality of first locking bolts, and the first locking bolts pass through the snap plate at the slot and are screwed to the first anti-shear rib and the second anti-shear rib.

[0013] Optionally: a long hole is provided on the upper portion of the snap plate, and the first locking bolt passes through the long hole.

[0014] By adopting the above technical solution, during the construction process, the snap plate can be pre-connected to the first joint, and the first building component with the snap plate can be hoisted and aligned with the lower column and then gradually dropped. When the lower end of the snap plate contacts the downward guide slope provided on the outer edge of the upper end of the second shear rib, the snap plate can freely rotate and turn outward.

[0015] Optionally: the fastener includes a second locking bolt, which passes through both ends of the snap plate and is screwed to the first connecting plate and the second connecting plate.

[0016] Optionally: reinforcing plates are extended from both ends of the snap plate, and the reinforcing plates are connected to the first connecting plate and the second connecting hoop connecting plate through a third locking bolt, and the reinforcing plate and the snap plate are an integral connecting component.

[0017] Optionally: a long hole along the axial direction of the column is provided on the reinforcing plate, and the third locking bolt passes through the long hole.

[0018] By adopting the above technical solution, when the connecting plate of the butt joint is subjected to a large tensile force, the bending resistance of the snap plate can be enhanced by setting a second locking bolt, a third locking bolt, a reinforcing plate and stiffening ribs, thereby ultimately improving the connection bearing capacity of the butt joint.

[0019] Optionally: an eaves plate is provided on the upper end surface of the second anti-shear rib close to the outer side.

[0020] By adopting the above technical solution, when the butt joint is installed at the end of a precast concrete rectangular column or circular column, a closed rectangular or circular closed hoop can be formed along the circumference of the cross section by welding between the eaves plates, and the closed hoop forms a horizontal constraint on the first connecting plate of the first joint, so that the column has a certain effect of resisting horizontal forces; when the butt joint is installed at the end of a precast concrete wall, the long strip of eaves plate forms a blocking constraint on the long strip of the first connecting plate, so that the concrete wall has a certain effect of resisting horizontal forces and displacements outside the wall plane.

[0021] Optionally: the first joint includes a first connector composed of a plurality of first connecting plates, and the second joint includes a second connector composed of a plurality of second connecting plates.

[0022] Optionally: an upper sealing plate is provided at the end of the first connector, and a lower sealing plate is provided at the end of the second connector, and the upper sealing plate and the lower sealing plate are in contact with each other.

[0023] By adopting the above technical solution, under the action of the pre-compression stress applied by the snap plate to the first connector and the second connector, an anti-slip friction force is formed between the upper and lower sealing plates, thereby forming a shear bearing capacity between the two prefabricated components connected by the connecting joint.

[0024] Optionally: an upper sealing plate is provided at the end of the first connector, a lower sealing plate is provided at the end of the second connector, a grouting space is reserved between the upper sealing plate and the lower sealing plate, a slurry layer is filled in the grouting space, and a grouting pipe and a grouting hole connecting the outside and the grouting space are provided inside the first joint or the second joint;

[0025] By adopting the above technical solution, slurry is injected into the grouting space, and when the slurry layer reaches the designed strength, the shear bearing capacity between the two prefabricated components connected by the connecting joint is formed.

[0026] The second technical purpose of the present application is to provide a construction method for building components using the following technical solution: comprising the following construction steps:

[0027] S1, using a first locking bolt to pass through the long hole on the upper end of the snap plate and initially screw it to the first anti-shear rib, so that the lower end of the snap plate can rotate outward around the upper end;

[0028] S2. hoisting the building component connected to the first joint;

[0029] S3, controlling the building component connected to the first joint to descend, and during the descending process, the lower end of the buckle plate can be rotated outward so that the second shear rib can enter the enclosure of the buckle plate;

[0030] S4, after the lower end surface of the first connecting plate abuts against the step surface of the second connecting plate, tighten the first locking bolt that was initially screwed in S1;

[0031] S5, pass the remaining locking bolts through the two ends of the buckle plate and screw them to the first connecting plate and the second connecting plate. By adopting the above technical solution, the first building component and the second building component can be quickly connected by using the first joint, the second joint, the buckle plate and the bolt.

[0032] The third technical purpose of the present application is to provide a construction method for building components using the following technical solution: comprising the following construction steps:

[0033] S1. Use the third locking bolt to pass through the long hole on the upper end of the reinforcing plate and initially screw it to the first connecting plate, so that the lower end of the buckle plate can rotate outward around the upper end;

[0034] S2. hoisting the building component connected to the first joint;

[0035] S3, controlling the building component connected to the first joint to descend, and during the descending process, the lower end of the buckle plate can be rotated outward so that the second shear rib can enter the enclosure of the buckle plate;

[0036] S4, after the lower end surface of the first connecting plate abuts against the step surface of the second connecting plate, tighten the third locking bolt that was initially screwed in S1;

[0037] S5. Pass the remaining locking bolts through both ends of the buckle plate and screw them to the first connecting plate and the second connecting plate;

[0038] S6. Inject slurry into the grouting space through the grouting pipe until the slurry overflows from the overflow port.

[0039] This application has at least the following beneficial effects:

[0040] (1) After the butt joint is installed and locked, it has the ability to eliminate the gap formed by the processing and installation errors of the joint plates, achieving "stress-free deformation" when under tension;

[0041] (2) After the butt joint is connected and locked by the snap plate, the connection node has pre-compression stress, and the butt joint does not come off and there is no gap when it is pulled;

[0042] (3) Having shear bearing capacity to resist horizontal forces;

[0043] (4) The long hole on the snap plate allows the snap plate to rotate freely and turn outward when the building components are connected. After the first joint and the second joint are aligned in place, the snap plate connected to the first joint automatically clamps the lower connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic diagram of the background technology structure of this application.

[0045] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this application.

[0046] Figure 3 This is a schematic diagram of the partial decomposition structure of this application.

[0047] Figure 4 This is a schematic diagram of the structure of the butt joint of the present application applied to a column.

[0048] Figure 5 This is a schematic diagram of the structure of the reinforcement plate and the upper and lower sealing plates when they are in contact with each other.

[0049] Figure 6 This is a schematic diagram of the structure of the slurry layer of the present application.

[0050] Figure 7 This is a structural schematic diagram of the butt joint of the present application applied to a cantilever plate.

[0051] Figure 8 This is a structural schematic diagram of the butt joint of the present application applied to a wall.

[0052] Fig. 9 This is a schematic diagram of the outward-turning structure of the snap plate during installation when grouting is not required in this application.

[0053] Fig.10 This is a schematic diagram of the outward-turning structure of the snap plate during installation when grouting and reinforcement plates are required in this application.

[0054] Description of reference numerals:

[0055] 1. Hoop body; 2. Clip strip; 3. Clip plate; 4. Clip groove; 5. Bolt; 6. First joint; 7. Second joint; 8. Clip plate; 9. First connecting plate; 10. First shear rib; 11. Second connecting plate; 12. Second shear rib; 121. Eaves plate; 13. Insertion cavity; 14. Clip groove; 15. First connector; 16. Second connector; 17. First locking bolt; 18. Long hole; 19. Guide slope; 20. Second locking bolt; 21. Reinforcement plate; 22. Third locking bolt; 23. Reinforcing rib; 24. Upper sealing plate; 25. Lower sealing plate; 26. Grouting space; 27. Grouting pipe; 28. Overflow port; 29. ​​First precast board; 30. Second precast board; 31. First precast wall; 32. Second precast wall. DETAILED DESCRIPTION

[0056] The following is combined with Figure 2-10 This application is described in further detail.

[0057] like Figure 2-10 As shown, the building component butt joint with tolerance disclosed in the present application can be used to connect building components such as columns, walls, and plates, and includes a first joint 6, a second joint 7, and a plurality of snap plates 8. By connecting the first joint 6 to the first building component, connecting the second joint 7 to the second building component, and then butting the first joint 6 with the second joint 7, and then connecting the first joint 6 and the second joint 7 with the snap plates 8, the first building component and the second building component can be quickly connected.

[0058] like Figure 2 , 3 As shown, the first joint 6 includes at least one first connecting plate 9 and a first anti-shear rib 10 . The first anti-shear rib 10 is arranged at the lower end of the first connecting plate 9 close to the end surface, that is, the end of the first connecting plate 9 exceeds the first anti-shear rib 10 .

[0059] The second joint 7 includes at least one second connection plate 11 group and a second anti-shear rib 12 . The second anti-shear rib 12 is arranged at the end of the second connection plate 11 , and an eaves plate 121 is arranged on the upper end surface of the second anti-shear rib 12 close to the outer side.

[0060] The first connecting plate 9 and the second connecting plate 11 can be flat plates or arc-shaped plates, and the first anti-shear ribs 10 and the second anti-shear ribs 12 are adaptively arranged as long as they can fit the first connecting plate 9 and the second connecting plate 11 .

[0061] When the first joint 6 is connected to the second joint 7 , the lower end surface of the first connecting plate 9 and the upper end surface of the second connecting plate 11 abut against each other.

[0062] A slope i is provided at one of the upper edge of the first anti-shear rib 10 and the lower edge of the second anti-shear rib 12. In this embodiment, the end surface of the first anti-shear rib 10 away from the second anti-shear rib 12 and the end surface of the second anti-shear rib 12 away from the first anti-shear rib 10 are provided with the same slope i. However, in some other embodiments, the slope may be provided only on the first anti-shear rib 10 or the second anti-shear rib 12. A snap groove 14 is provided in the snap plate 8. One side wall in the snap groove 14 is provided with the same slope i as the first anti-shear rib 10, and the other side wall in the snap groove 14 has the same slope i as the lower edge of the second anti-shear rib 12. This is provided so that the snap groove 14 has a larger opening size, so that the first anti-shear rib 10 and the second anti-shear rib 12 can easily enter the snap groove 14.

[0063] like Figure 2 , 3 As shown, in one embodiment, when the first joint 6 and the second joint 7 are used to connect the upper and lower prefabricated building components, such as a square column, the second joint 7 includes four second connecting plates 11 connected in sequence to form a hoop-shaped second connecting body 16, so that an insertion cavity 13 is formed on the inner side of the second anti-shear rib 12. The first joint 6 includes four first connecting plates 9 connected in sequence to form a hoop-shaped first connecting body 15. When the first joint 6 and the second joint 7 are connected, the lower end of the first connecting body 15 is inserted into the insertion cavity 13, and the lower end surface of the first connecting plate 9 abuts against the upper end surface of the second connecting plate 11.

[0064] When the snap plate 8 is squeezed toward the inside of the first joint 6 and the second joint 7, the first shear rib 10 and the second shear rib 12 can be squeezed by the side wall of the snap groove 14 and approach each other, thereby allowing the end of the first connector 15 and the end of the second connector 16 to be squeezed against each other to form a pre-compression stress at the node.

[0065] There is a gap between the lower edge of the first anti-shear rib 10 and the upper edge of the second anti-shear rib 12, and there is a gap between the snap plate 8 and the first joint 6 and the second joint 7. The above gaps are set to avoid obstruction when the snap plate 8, the first anti-shear rib 10, and the second anti-shear rib 12 move.

[0066] The snap plate 8 is connected to the first joint 6 and the second joint 7 through the first locking bolts 17. The first locking bolts 17 are arranged in at least two rows in the middle of the snap plate 8, and are arranged through the snap plate 8 at the upper and lower parts of the snap groove 14. The upper part of the snap plate 8 is provided with a long hole 18 along the axial direction of the column. The first locking bolts 17 at the upper part pass through the snap plate 8 from the long hole 18 and are screwed to the first anti-shear rib 10. The position where the first locking bolts 17 at the lower part pass through does not necessarily have to be provided with a long hole 18, and only a through hole for the first locking bolts 17 to pass through can be provided. The first locking bolts 17 at the lower part pass through the snap plate 8 and are screwed to the second anti-shear rib 12.

[0067] Due to the existence of the slope i, during the locking process of the first locking bolt 17, the snap plate 8 will move toward the first joint 6 and the second joint 7, and the upper and lower inner walls of the snap plate 8 squeeze the upper slope of the first shear rib 10 and the lower slope of the second shear rib 12, so that the first shear rib 10 and the second shear rib 12 are squeezed toward each other, so that the first joint 6 and the second joint 7 have a tendency to approach each other, and the end faces of the first joint 6 and the second joint 7 are pressed against each other, thereby forming an axial pre-stress of the connection node. The greater the locking force of the first locking bolt 17, the greater the pre-stress generated in the connection node. Compared with the prior art, this connection structure can eliminate the dimensional error of the connection during processing, such as the processing error of the distance between the upper side wall and the lower side wall of the snap plate snap groove, the processing error of the distance between the first and second shear rib slope surfaces, etc., so that the butt joint has a certain tolerance capacity. In addition, a downward guide slope 19 is provided on the outer edge of the upper end of the second anti-shear rib 12 for use in conjunction with the long hole 18. By so providing, during the construction process, the snap plate 8 can be pre-connected to the first joint 6, and the first building component with the snap plate 8 is hoisted and aligned with the second building component and then gradually falls down. When the lower end of the snap plate 8 contacts the guide slope 19 provided on the outer edge of the upper end of the second anti-shear rib 12, the snap plate 8 can freely rotate and turn outward.

[0068] like Figure 4 As shown, the snap plate 8 is also provided with a second locking bolt 20, which passes through the two ends of the snap plate 8 and is screwed to the first connecting plate 9 and the second connecting plate 11. When the butt joint is subjected to a large axial force, the snap plate 8 tends to bend and deform under the action of the eccentric tension. This deformation will cause the upper and lower inner walls of the snap groove 14 to separate from the upper and lower slope surfaces of the first shear rib 10 and the second shear rib 12. By providing the second locking bolt 20, the bending resistance of the snap plate 8 is enhanced, and finally the connection bearing capacity of the butt joint is improved. During the hoisting process, the snap plate 8 can also be flexibly connected to the first joint 6 by the second locking bolt 20. During the descent process, the lower end of the snap plate takes the second locking bolt as the rotation center. At this time, the bolt hole through which the second locking bolt 20 passes is set as a long hole 18.

[0069] like Figure 5As shown, in one embodiment, reinforcing plates 21 are extended from both ends of the snap plate 8, and the reinforcing plates 21 are connected to the snap plate 8 as a whole. The reinforcing plates 21 are connected to the first connecting plate 9 and the second connecting plate 11 through the third locking bolts 22. The reinforcing plates 21 are provided with stiffening ribs 23 to further improve the bending rigidity of the reinforcing plates 21, thereby further enhancing the strength of the connection between the snap plate 8 and the first joint 6 and the second joint 7. In this embodiment, a long hole 18 along the axial direction of the column is provided on the reinforcing plate 21, and the third locking bolt 22 passes through the long hole 18, and the long hole 18 does not have to be provided on the snap plate 8. In this arrangement, when the third locking bolt 22 is not tightened, the lower end of the snap plate 8 can freely rotate around the upper end and turn outward.

[0070] like Figure 4 As shown, in one embodiment, an upper sealing plate 24 is fixed to the end of a hoop-shaped first connector 15 formed by the first connecting plate 9, and a lower sealing plate 25 is fixed to the end of a hoop-shaped second connector 16 formed by the second connecting plate 11, and the upper sealing plate 24 and the lower sealing plate 25 abut against each other.

[0071] The prestress applied by the snap plate 8 to the first joint 6 and the extrusion force generated by the building gravity is N. The extrusion force N multiplied by the friction coefficient μ of the upper and lower cover plate steels can provide the first horizontal shear bearing capacity Rv (Rv=μN) for the butt joint;

[0072] like Figure 6 As shown, in one embodiment, an upper sealing plate 24 is fixed to the end of the hoop-shaped first connector 15 composed of the first connecting plate 9, and a lower sealing plate 25 is fixed to the end of the hoop-shaped second connector 16 composed of the second connecting plate 11, and a grouting space 26 is formed between the upper sealing plate 24 and the lower sealing plate 25. A grouting pipe 27 is also provided inside the second joint 7, one end of the grouting pipe 27 is connected to the grouting space 26 at the lower sealing plate 25, and the other end is connected to the outside at the side wall of the second connector 16. An overflow port 28 is provided on the side wall of the first connector 15, and the outlet of the overflow port 28 is higher than the upper sealing plate 24, and a hole for the slurry to flow out is provided on the upper sealing plate 24. By injecting slurry into the grouting pipe 27, a filling layer is formed in the grouting space 26. When the slurry overflows from the overflow port 28, the slurry fills the grouting space 26. The slurry may specifically be mortar, fine stone concrete, etc. When the grouting material reaches the design strength, the second horizontal shear bearing capacity of the connector is formed.

[0073] Of course, in one embodiment, the grouting pipe 27 can be arranged in the first joint 6 above the upper sealing plate 24 (not shown in the figure), and one end of the grouting pipe 27 is connected to the grouting space 26 at the upper sealing plate 24, and the other end is connected to the outside at the side wall of the first connector 15.

[0074] In one embodiment, the overflow port 28 may be disposed below the upper hoop sealing plate.

[0075] In one embodiment, the eaves plate 121 above the second shear rib 12 forms a closed rectangle or ring. When the first joint 6 is subjected to horizontal shear force, the first connector 15 is restrained by the eaves plate 121 to form a third horizontal shear force bearing capacity.

[0076] In summary, the first horizontal shear bearing capacity, the second horizontal shear bearing capacity, and the third horizontal shear bearing capacity can be set separately or in combination.

[0077] like Figure 7 As shown, in one embodiment, when the first joint 6 and the second joint 7 are used to connect two horizontally arranged building prefabricated panels, such as cantilever panels, the first joint 6 has only one first connecting plate 9, and the second joint 7 has only one second connecting plate 11. In this case, the building prefabricated panel includes a first prefabricated panel 29 and a second prefabricated panel 30, one end of the first prefabricated panel 29 is a support end, and the other end is connected to the second prefabricated panel 30. The first connecting plate 9 and the second connecting plate 11 are arranged horizontally, and the second connecting plate 11 is fixed to the upper side of the first prefabricated panel 29 away from the support end, and the first connecting plate 9 is fixed to the upper side of the second prefabricated panel 30 close to one end of the first prefabricated panel 29.

[0078] The first shear rib 10 and the second shear rib 12 are both located on the upper side of the first precast plate 29 and the second precast plate 30. At this time, the upper part of the connection node of the first precast plate 29 and the second precast plate 30 is subjected to tensile stress, and the tensile stress is borne by the tensile bearing capacity of the butt joint. The lower part of the connection node of the first precast plate 29 and the second precast plate 30 is subjected to compressive stress, and the butt joint may not be provided at the lower part.

[0079] like Figure 8 As shown, in one embodiment, the first joint 6 and the second joint 7 are used for two vertically adjacent walls, which include a first prefabricated wall 31 and a second prefabricated wall 32. The first joint 6 is fixed on both sides of the first prefabricated wall 31, and the second joint 7 is fixed on both sides of the second prefabricated wall 32. The first prefabricated wall 31 and the second prefabricated wall 32 can be connected by connecting the first joint 6 and the second joint 7 through the snap plate 8.

[0080] like Fig. 9 As shown, a construction method of a building component disclosed in the present application is provided for a construction prefabricated component arranged up and down, and under the condition that the butt joint includes a first connector 15 and a second connector 16, the construction method includes the following construction steps:

[0081] S1, using the first locking bolt 17 to pass through the long hole 18 at the upper end of the snap plate 8 and initially screw-connect with the first anti-shear rib 10, so that the lower end of the snap plate 8 can rotate outward around the upper end;

[0082] S2, hoisting the building component connected to the first joint 6;

[0083] S3, controlling the building component connected to the first joint 6 to descend, during which the lower end of the snap plate 8 contacts the guide slope 19 at the upper end of the second anti-shear rib 12, and the lower end of the snap plate 8 freely turns outward so that the second anti-shear rib 12 can enter the enclosure of the snap plate 8;

[0084] S4, the lower end of the first connector 15 is inserted into the insertion cavity 13 and locked to the first anti-shear rib 10, and then the first locking bolt 17 is used to lock the buckle plate 8 and the second anti-shear rib 12;

[0085] S5. Use the second locking bolts 20 to pass through both ends of the buckle plate 8 and screw them to the first connecting plate 9 and the second connecting plate 11.

[0086] like Fig.10 As shown, a construction method of a building component disclosed in the present application includes the following construction steps for the upper and lower prefabricated building components, the butt joint includes a first connector 15, a second connector 16, and a reinforcing plate 21:

[0087] S1. Use the third locking bolt 22 to pass through the long hole 18 at the upper end of the reinforcing plate 21 and initially screw it to the first connecting plate 9, so that the lower end of the buckle plate 8 can rotate outward around the upper end;

[0088] S2, hoisting the building component connected to the first joint 6;

[0089] S3, controlling the building component connected to the first joint 6 to descend, so that the lower end of the snap plate 88 contacts the guide slope 19 at the upper end of the second anti-shear rib 12, and the lower end of the snap plate 8 freely turns outward so that the second anti-shear rib 12 can enter the enclosure of the snap plate 8;

[0090] S4, after the lower end of the first connecting plate 9 is inserted into the plug-in cavity 13, the first locking bolt 17 connected to the first anti-shear rib 10 is locked, and then the first locking bolt 17 is used to lock the buckle plate 8 and the second anti-shear rib 12;

[0091] S5, using the second locking bolts 20 to pass through both ends of the buckle plate 8 and screw them to the first connecting plate 9 and the second connecting plate 11;

[0092] S6. Inject slurry into the grouting cavity through the grouting pipe 27 until the slurry overflows from the overflow port 28.

[0093] In summary, the present invention has at least the following beneficial effects:

[0094] (1) After the butt joint is installed and locked, it has the ability to eliminate the gap formed by the processing and installation errors of the joint plates, achieving "stress-free deformation" when under tension;

[0095] (2) After the butt joint is connected and locked by the snap plate 8, the connection node has pre-compression stress, and the butt joint does not come off and there is no gap when it is pulled;

[0096] (3) It has the shear bearing capacity to resist horizontal forces.

[0097] (4) The long hole 18 on the snap plate 8 allows the snap plate 8 to rotate freely and turn outward when the building components are connected. After the first joint 6 and the second joint 7 are aligned in place, the snap plate 8 connected to the first joint 6 automatically clamps the lower connecting piece.

[0098] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A butt joint of building components with tolerance, characterized in that: Used for connecting building components, comprising a first joint (6), a second joint (7) and a snap plate (8), The first joint (6) comprises a first connecting plate (9) and a first anti-shear rib (10) arranged on the outer surface of the end of the first connecting plate (9). The second joint (7) comprises a second connecting plate (11) and a second anti-shear rib (12) arranged on the outer surface of the end of the second connecting plate (11). The lower end surface of the first connecting plate (9) is in contact with the upper end surface of the second connecting plate (11); at least one of the upper edge of the first anti-shear rib (10) and the lower edge of the second anti-shear rib (12) is provided with a slope surface; a snap groove (14) is provided in the snap plate (8); the upper side wall of the snap groove (14) is provided with a slope surface matching the upper edge of the first anti-shear rib (10); the lower side wall is provided with a slope surface matching the lower edge of the second anti-shear rib (12); the snap plate (8) is connected to the first joint (6) and the second joint (7) via a fastener; There is a gap between the lower edge of the first anti-shear rib (10) and the upper edge of the second anti-shear rib (12), and there is a gap between the snap plate (8) and the first joint (6) and the second joint (7). During the process of tightening the fastener, the first joint (6) and the second joint (7) tend to approach each other.

2. The building component butt joint with tolerance according to claim 1, characterized in that: A downward guiding slope (19) is provided on the outer edge of the upper end of the second anti-shear rib (12).

3. The building component butt joint with tolerance according to claim 1, characterized in that: The fastener comprises a plurality of first locking bolts (17), wherein the first locking bolts (17) pass through the snap plate (8) at the snap groove (14) and are screwed to the first anti-shear rib (10) and the second anti-shear rib (12).

4. The building component butt joint with tolerance according to claim 3, characterized in that: The upper part of the buckle plate (8) is provided with a long hole (18) along the axial direction of the connecting body, and the first locking bolt (17) passes through the long hole (18).

5. The building component butt joint with tolerance according to claim 1, characterized in that: The fastener comprises a second locking bolt (20), which passes through both ends of the snap plate (8) and is screwed to the first connecting plate (9) and the second connecting plate (11).

6. The building component butt joint with tolerance according to claim 5, characterized in that: The upper part of the buckle plate (8) is provided with a long hole (18) along the axial direction of the connecting body, and the second locking bolt (20) passes through the long hole (18).

7. The building component butt joint with tolerance according to claim 1, characterized in that: Reinforcement plates (21) are extended from both ends of the snap plate (8); the reinforcement plates (21) are connected to the first connection plate (9) and the second connection plate (11) via third locking bolts (22); the reinforcement plates (21) and the snap plate (8) are an integral connection component.

8. The building component butt joint with tolerance according to claim 7, characterized in that: The reinforcing plate (21) is provided with a reinforcing rib (23).

9. The building component butt joint with tolerance according to claim 7, characterized in that: The reinforcing plate (21) is provided with a long hole (18), and the third locking bolt (22) passes through the long hole (18).

10. The building component butt joint with tolerance according to claim 1, characterized in that: An eaves plate (121) is provided on the upper end surface of the second anti-shear rib (12) close to the outer side.

11. The building component butt joint with tolerance according to claim 1, characterized in that: The first joint (6) comprises a first connecting body (15) composed of a plurality of first connecting plates (9), and the second joint (7) comprises a second connecting body (16) composed of a plurality of second connecting plates (11).

12. The building component butt joint with tolerance according to claim 11, characterized in that: An upper sealing plate (24) is provided at the end of the first connecting body (15), and a lower sealing plate (25) is provided at the end of the second connecting body (16), and the upper sealing plate (24) and the lower sealing plate (25) are in contact with each other.

13. The building component butt joint with tolerance according to claim 11, characterized in that: An upper sealing plate (24) is arranged at the end of the first connector (15), and a lower sealing plate (25) is arranged at the end of the second connector (16). A grouting space (26) is provided between the upper sealing plate (24) and the lower sealing plate (25), and a grouting space (26) is filled with a slurry layer. A grouting pipe (27) connecting the outside and the grouting cavity is arranged inside the first joint (6) or the second joint (7); and an overflow port (28) is also arranged at the top of the grouting cavity.

14. A method for constructing a building component with a tolerable butt joint of a building component according to any one of claims 3 to 6 and 10 to 13, characterized in that: The construction steps include the following: S1. Use the first locking bolt (17) or the second locking bolt (20) to pass through the long hole (18) at the upper end of the snap plate (8) and initially screw-connect with the first anti-shear rib (10), so that the lower end of the snap plate (8) can rotate outward around the upper end; S2, hoisting the building component connected to the first joint (6); S3, controlling the building component connected to the first joint (6) to descend, and during the descending process, the lower end of the snap plate (8) can be rotated outward so that the second anti-shear rib (12) can enter the enclosure of the snap plate (8); S4, after the lower end surface of the first connecting plate (9) abuts against the upper end surface of the second connecting plate (11), tighten the first locking bolt (17) initially screwed in S1; S5. Then, the remaining first locking bolts (17) and second locking bolts (20) are passed through the two ends of the buckle plate (8) and screwed to the first connecting plate (9) and the second connecting plate (11).

15. A method for constructing a building component with a tolerable butt joint of a building component according to any one of claims 7 to 13, characterized in that: S1. Use the third locking bolt (22) to pass through the long hole (18) at the upper end of the reinforcing plate (21) and initially screw it to the first connecting plate (9), so that the lower end of the buckle plate (8) can rotate outward around the upper end; S2, hoisting the building component connected to the first joint (6); S3, controlling the building component connected to the first joint (6) to descend, and during the descending process, the lower end of the snap plate (8) can be rotated outward so that the second anti-shear rib (12) can enter the enclosure of the snap plate (8); S4, after the lower end surface of the first connecting plate (9) abuts against the step surface of the second connecting plate (11), the third locking bolt (22) preliminarily screwed in S1 is locked; S5, passing the remaining third locking bolt (22), the first locking bolt (17), and the second locking bolt (20) through both ends of the buckle plate (8) and screwing them to the first connecting plate (9) and the second connecting plate (11); S6. Inject slurry into the grouting space (26) through the grouting pipe (27) until the slurry overflows from the overflow port (28).

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