CN110016980A - Crack resistence prefabricated T-shaped corner-pillar - Google Patents

Abstract

The invention discloses an anti-cracking prefabricated T-shaped corner column, which comprises a T-shaped corner body with a T-shaped structure formed by three corner bodies; it is characterized in that the outer side surfaces of the three corners are provided with vertical prefabricated through-holes along the height direction. The slurry storage tank is provided with joint grooves on both sides of the outer ends of the three corners. The T-shaped corner column involved in the invention is densely filled with mortar in a prefabricated slurry storage channel formed by splicing with adjacent inner partition wall slats to form a secondary connection body with an inner bolt function for fixing, thereby solving the problem of existing The problem of cracking at the splicing of the T-shaped corner board and the adjacent interior wall partitions; Laying net and plastering in the joint groove at the edge of the joint for leveling connection, which also eliminates the need to do a large area of the whole wall in the later stage. Layer plaster leveling. It is beneficial to the construction of the decorative surface layer in the later stage, and at the same time avoids the phenomenon of hollowing and falling off due to the cracking of the decorative surface layer.

Description

Anti-cracking prefabricated T-shaped corner column

technical field

The invention belongs to the field of non-load-bearing partition wall engineering, in particular to an anti-cracking prefabricated T-shaped corner column.

Background technique

Lightweight partition wall panels for construction refer to the prefabricated strips used for non-load-bearing interior partition walls in buildings specified in GB/T23452-3009 "Lightweight Partition Wall Strips for Buildings". Lightweight partition wall panels include glass fiber reinforced cement. Strips, glass fiber reinforced gypsum hollow strips, steel wire (steel mesh) reinforced cement strips, light concrete strips, composite sandwich lightweight strips, etc. The full name is lightweight partition wall slats for construction, which is used as the main material for non-load-bearing inner partition walls of general industrial buildings, residential buildings and public buildings. The non-load-bearing internal partition wall projects using light-weight partition wall slats as general industrial buildings, residential buildings, and public building projects belong to non-load-bearing partition wall projects. Lightweight partition slats have the advantages of moisture resistance, earthquake resistance and sound insulation, fire protection and heat preservation, small footprint, good strength, and convenient construction.

In the existing partition wall design, according to the position of the space, it is inevitable to need a corner design. For the corner position, it is necessary to configure a corner plate for corner transition. In the field of partition walls, a T-shaped corner column is disclosed, and the sides of the corner plate are opposite to each other. With male and female grooves.

This structure is installed by plastering at the butt joint, and the thickness of the slurry attached to the mating surface of the male and female grooves is relatively thin. Generally, the gap between the mating surfaces of the male and female grooves on one side is 1-2mm, and the slurry filled in this gap is If it is too thin, the adhesive force of the secondary connector formed after the slurry is solidified is very low, so the adhesive force of the formed secondary connector is not enough, and the secondary connector will be separated from the contact surface due to the stress change of the wall, and then Cracks appear at the joints; therefore, after the partition panels with the male-female groove structure are spliced, there is still a problem of cracking at the joints; due to the limitation of the male-female groove structure, in the actual construction and transportation process, the male-female groove There will be some deformation, which will lead to uneven fitting clearance of the male and female grooves during assembly, which will limit the adjustment of two adjacent strips. In actual assembly, the fitting clearance on one side of the male and female grooves will be smaller than the theoretical value. In some cases, one side is almost close to each other, so the slurry cannot be filled densely. Even if the cracking problem is compensated by anti-crack mortar on the outside of the joint, it cannot be cracked; the reason is that the joint of the partition board is not formed. A good connector connects two adjacent partition panels into a whole. When the inner wall is subjected to stress deformation, shrinkage and vibration, the strength of the connector at the splicing point cannot resist the stress, and cracking will occur. Once a crack occurs, the entire interior wall is basically unable to achieve sound insulation, and the sound will be transmitted along the crack.

Therefore, the present invention provides an anti-cracking prefabricated T-shaped corner column. The T-shaped corner column completely solves the problem of cracking at the joint between the inner wall slats and the T-shaped corner column, thereby ensuring that the lightweight partition wall has the expected performance. sound insulation, thermal insulation and other advantages.

SUMMARY OF THE INVENTION

In view of the problems existing in the prior art, the present invention provides a crack-proof prefabricated T-shaped corner post that solves the cracking at the joint of the existing T-shaped corner plate and the adjacent inner wall partition plate and improves the working efficiency.

The T-shaped corner column does not need to be plastered and leveled as a whole after the splicing and forming of the wall body, and there is no cracking at the joint; it is beneficial to the construction of the decorative surface layer in the later stage, and at the same time, it avoids the cracking of the joint joint due to insufficient flatness of the inner wall. Due to the reason, the phenomenon of bulging and falling off occurs.

The present invention is realized in this way, an anti-cracking prefabricated T-shaped corner column includes three corner bodies, and is characterized in that vertical prefabricated slurry storage tanks are arranged on the outer side surfaces of the three corners along the height direction, and outside the three corners The edges of the ends are provided with seam slots.

The invention solves the problem of cracks occurring at the joints at the T-shaped corners of the existing inner walls, and the T-shaped corner columns adopting the above structure can be spliced with the partition board by the grouting process, thereby improving the operation efficiency, reducing labor intensity and improving The construction efficiency is high, and it is easy to assemble each other in actual construction, easy to level, and the assembled inner wall has good integrity.

In the above structure, preferably, a plurality of partitions are integrally prefabricated in the vertical prefabricated slurry storage tank, and the height of the partitions is smaller than the depth of the vertical prefabricated slurry storage tank. The design of the partition increases the resistance of the mortar backflow, and reduces the problem of the empty section at the upper end of the slurry storage channel caused by the self-weight of the mortar in a short period of time. It can reduce the large empty section at the top of the slurry storage channel caused by the shrinkage and sinking of the mortar during the solidification process; after the mortar in the slurry storage tank is solidified, the partition is equivalent to inserting the inner reinforcement into the secondary connection body, which improves the T The firmness of the connection between the corner column and the adjacent inner partition wall slats. At the same time, the partition also plays a role in strengthening the slurry storage tank. In the above structure, preferably, the upper and/or lower end surfaces of the three corner bodies are provided with a horizontal prefabricated slurry storage tank that communicates with the vertical prefabricated slurry storage tank. In this way, the entire T-shaped corner column is slotted on three or four sides. During the actual construction process, it can be grouted with the lightweight partition wall strips, bottom or top surfaces on both sides at the same time. After grouting, the T-shaped corner column is grouted through the secondary connector. It forms an enclosure to further ensure the stability and firmness of the partition wall slats and T-shaped corner columns.

In the above technical solution, preferably, the upper and lower sides of the partition are provided with a draft angle toward the center. Adopting this structure is beneficial to demoulding the product after molding, improving the production efficiency, and also facilitating the cleaning of the mold, reducing the adhesion of the mortar during the mold drafting, and improving the quality of the product.

In the above technical solution, preferably; the width of the slot of the horizontal and vertical prefabricated slurry storage tank is greater than the width of the bottom of the tank. Adopting this structure is beneficial to demoulding the product after molding, improving the production efficiency, and also facilitating the cleaning of the mold, reducing the adhesion of the mortar during the mold drafting, and improving the quality of the product.

In the above technical solution, preferably, a grouting reserved port is provided at the lower part of the joint groove on one side of the T-shaped corner body at a distance of 50-100 mm from the lower surface, and the grouting reserved port is communicated with the vertical prefabricated slurry storage tank. The use of prefabricated grouting reserved openings is conducive to improving construction efficiency, eliminating the need for drilling rigs to drill grouting openings during actual assembly, improving production efficiency, and avoiding damage to the T-shaped corner body due to drilling construction.

In the above technical solution, according to different application scenarios and the national standard regulations on light-weight slats for interior walls, the length of the T-shaped corner body of the present invention is 2000mm-3300mm, the thickness is 90-200mm, and the width of the three corner bodies is at least 2000mm-3300mm. 100mm.

The three corners are pre-embedded with steel insert sleeves. The rebar sleeve is inserted into the steel bar to cooperate with the steel bar under the structural beam or the floor slab to improve the firmness of the T-shaped corner column, which is equivalent to building a structural column at the corner position, thereby improving the stability of the wall.

Steel bars extending from the upper surface and/or the lower surface of the T-shaped corner column body are pre-embedded in the three corner bodies. In actual assembly, it can be directly welded with beams or prefabricated steel bars on the ground to form planting bars, thereby improving the stability of the wall.

One of the three corner bodies is provided with a notch; the inner surface of the notch is provided with a prefabricated slurry storage tank, and the edge of the notch is provided with a joint groove. This design facilitates the placement of door headers when installing door openings near corners.

To sum up, the T-shaped corner column formed by the above technical solution solves the problem of cracking at the joint between the existing T-shaped corner plate and the adjacent inner partition wall slats, and it is easy to assemble each other during actual construction, which improves the construction efficiency. Efficiency and labor intensity reduction; factory prefabrication reduces dust and noise pollution in traditional on-site cutting construction, improves the working environment, and responds to the green building action plan advocated.

Description of drawings

1 is a schematic structural diagram of Embodiment 1 of the present invention;

Fig. 2 is the perspective view of embodiment 1;

3 is a schematic structural diagram of the assembled state of Embodiment 1;

4 is a schematic diagram of the structure of the secondary connector formed after the assembly of Example 1;

Fig. 5 is the structural representation of embodiment 2;

Fig. 6 is the structural representation of embodiment 3;

7 is a schematic diagram of the assembled structure of Embodiment 3;

Fig. 8 is the structural representation of embodiment 4;

Fig. 9 is the three-dimensional structure schematic diagram of embodiment 4;

Fig. 10 is the structural representation of embodiment 5;

11 is a schematic structural diagram of Embodiment 6;

Fig. 12 is the structural representation of embodiment 7;

13 is a schematic structural diagram of Embodiment 8;

Figure 14 is a schematic structural diagram of a prefabricated door header;

Fig. 15 is the installation and use state diagram of embodiment 8;

Figure 16 is a schematic diagram of a structure with a joint groove around;

Fig. 17 is a schematic diagram of a prefabricated steel mesh structure in a T-shaped corner body.

In the figure, 100, T-shaped corner body; 110, vertical prefabricated slurry storage tank; 111, vertical prefabricated slurry storage tank; 120, partition; 130, joint groove; 140, anti-cracking mortar layer; 141, alkali resistance Fiberglass mesh; 150, reserved port for grouting; 160, steel bar; 170, notches; 171, prefabricated slurry storage tank; 172, joint groove; 200, secondary connector; 300, partition wall slats; 400, resistance Split connector; 500, L-shaped steel clip; 600, steel bar insert; 700, prefabricated door header; 701, prefabricated slurry tank; 800, door frame column.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

In order to solve the problem of cracking at the splicing of the existing T-shaped corner plates, the present invention provides a crack-proof prefabricated T-shaped corner column suitable for the grouting process, which will be described in detail below in conjunction with the relevant drawings:

Embodiment 1, please refer to FIG. 1 to FIG. 2, an anti-cracking prefabricated T-shaped corner column, including a T-shaped corner body with a T-shaped structure formed by three corner bodies 100; The vertical prefabricated pulp storage tank 110 is provided with joint grooves 130 on the two side edges of the outer ends of the three corners.

In the actual construction process, please refer to Figure 3 to Figure 4, the T-shaped corner body of the above structure is spliced with the adjacent partition wall slat 300 with a vertical prefabricated slurry tank, and the side surface of the T-shaped structural column body The prefabricated slurry storage tanks of the adjacent wall panels are enclosed to form a slurry storage channel, and then grouting is poured into the slurry storage channel from the bottom until the slurry storage channel is densely filled; The inner partition wall slats are bonded and connected, and the secondary connection body 200 formed after the mortar is solidified is thick and has strong cohesive force, and the secondary connection body formed at the same time is equivalent to an inner bolt, which has strong resistance. , effectively prevent the relative displacement and deformation between the T-shaped corner column and the adjacent inner partition wall slats caused by external force. Then, the joint groove of the T-shaped corner column and the corresponding joint groove of the adjacent inner partition wall slats are assembled and spliced to form a crack-resistant edge-sealing groove, and mesh cloth and crack-resistant edge-sealing groove are laid in the anti-cracking edge-sealing groove. The mortar forms the crack resistant joint 400 . The above-mentioned anti-crack connector and secondary connector firmly connect the T-shaped corner column and the adjacent inner partition wall slats from the inside to the outside, which completely solves the problem of the splicing of the T-shaped corner column and the inner partition wall slats. The problem of cracking; in addition, the above-mentioned anti-crack edge sealing groove also has the function of leveling the joints, and there is no need to make another layer of mesh cloth and anti-crack mortar on the large-scale integral wall in the later stage, which reduces the construction cost. , improve the construction efficiency. There is no need to plaster and level the inner wall surface, and the decoration layer can be directly constructed on the outer surface of the wall; it solves the problem of splicing the T-shaped corner plate with the male-female groove structure and the inner partition wall strip in the prior art. After the cracking problem occurred at the joint, the wall body completed by splicing the T-shaped corner column and the inner partition wall slats of the present invention was subjected to vibration, impact resistance, and imitation impact tests on its periphery after a 28-day curing period. , there is no cracking at the joint.

The invention solves the problem of cracks occurring at the joints at the T-shaped corners of the existing inner walls, and the T-shaped corner columns adopting the above structure can be spliced with the partition board by the grouting process, thereby improving the operation efficiency, reducing labor intensity and improving The construction efficiency is high, and it is easy to assemble each other in actual construction, easy to level, and the assembled inner wall has good integrity.

In the above technical solution, preferably; the plane where the center line of the bottom of the vertical prefabricated slurry storage tank 110 is located coincides with the plane where the center line of the T-shaped corner body in the thickness direction is located; and, the vertical prefabricated slurry storage tank The two sides of the 110 are in a mirror-symmetrical structure relative to the plane where the center line of the groove bottom is located. The consistency of the product of the present invention is ensured, and the problems of flipping the assembled type and finding mating surfaces due to differences are avoided, thereby improving the operation efficiency and the labor intensity of the construction personnel.

The width of the slot of the vertical prefabricated slurry storage tank 110 is larger than the width of the bottom of the tank. Adopting this structure is beneficial to demoulding the product after molding, improving the production efficiency, and also facilitating the cleaning of the mold, reducing the adhesion of the mortar during the mold drafting, and improving the quality of the product.

According to different application scenarios and the requirements of the national standard for lightweight slats for interior walls, the length of the T-shaped corner body of the present invention is 2000mm-3300mm, the thickness is 90-200mm, and the length of the three vertical sides is at least 100mm.

Example 2, please refer to FIG. 5; the vertical prefabricated slurry storage tank 110 is integrally prefabricated with several partitions 120, the height of the partitions 120 is smaller than the depth of the vertical prefabricated slurry storage tank 110, and the design of the partitions increases The resistance of the mortar backflow can reduce the problem of the empty section at the upper end of the slurry storage channel caused by the self-weight of the mortar flowing down the slurry storage channel in a short time; During the solidification process, it shrinks and sinks, resulting in a large empty section at the top of the slurry storage channel; after the mortar in the slurry storage tank is solidified, the partition is equivalent to inserting the inner reinforcement into the secondary connecting body, which improves the adjacent inner partition wall. The firmness of the board connection. At the same time, the partition also plays a strengthening role in the slurry storage tank.

Embodiment 3, please refer to FIG. 6 and FIG. 7 ; a grouting reserved port 150 is provided at the lower part of the joint groove 130 on one side of the T-shaped corner body at a distance of 50-100 mm from the lower surface, and the grouting reserved port is connected to the vertical prefabricated slurry storage. Slots are connected. The use of prefabricated grouting reserved openings is conducive to improving construction efficiency, eliminating the need for drilling rigs to drill out grouting openings during actual assembly, improving production efficiency, and avoiding damage to the T-shaped corner body due to drilling construction.

Embodiment 4, please refer to FIG. 8 and FIG. 9; in the above structure, preferably, the upper and/or lower end surfaces of the three corner bodies are provided with a horizontal prefabricated slurry storage tank that communicates with the vertical prefabricated slurry storage tank 111. In this way, three or four sides of the T-shaped corner column are prefabricated with grout storage grooves and joint grooves. During the actual construction process, it can be grouted with the inner wall strips on both sides at the same time. The inner partition wall slats form a firm bond, which ensures that the joint between the T-shaped corner column and the adjacent inner partition wall slats does not crack.

Embodiment 5, please refer to FIG. 10, the T-shaped corner column of the above structure can be fixedly connected to the beam or the ground by using the L-shaped steel clip 500 to improve the stability of the T-shaped corner column; at the same time, the following technical solutions can be used to achieve.

Embodiment 6, please refer to Figure 11; the three corners of the T-shaped corner column are pre-embedded with steel insert sleeves 600. With this structure, in the actual assembly, expansion screws are installed on the beam or on the ground, and the exposed part of the expansion screws is used. It is inserted in the rebar sleeve, and then the mortar is densely filled between the beam or the ground and the T-shaped corner column body. After the mortar is solidified, the T-shaped corner column body and the beam or the ground form an integrated structure, which improves the T-shaped corner column and the overall structure. The firmness and stability of the inner wall and the strong anti-seismic performance.

Embodiment 7, please refer to FIG. 12 ; steel bars 160 protruding from the upper surface and/or the lower surface of the T-shaped corner post are pre-embedded in the three corner bodies. With this structure, in the actual assembly, the reinforcement can be directly welded with the beam or the prefabricated steel bar on the ground, and then the mortar is densely filled in the slurry channel between the beam or the ground and the T-shaped corner column. After the mortar is cured, the T-shaped corner column and the The beam or the ground form an integrated structure, which improves the firm stability of the T-shaped corner column and the entire inner wall, and has strong seismic performance.

Example 8, please refer to FIG. 13 ; a corner body of the T-shaped corner post is provided with a notch 170 ; a prefabricated slurry storage tank 171 is arranged on the inner surface of the notch, and a joint groove 172 is arranged on the edge of the notch. The T-shaped corner column of this structure is suitable for installing door openings at the corners. When actually installing the inner partition wall slats, many door openings are arranged at a position about 20cm close to the side of the adjacent inner wall, that is, adjacent to the T-shaped corner column. This design is for the door to be parked against the wall after opening, so as to save the space used in the interior and passage. In actual assembly, the prefabricated door header plate 700 of the door opening can be directly overlapped with the door opening formed by the L-shaped corner post and the door frame column 800, avoiding on-site cutting and improving the construction efficiency; the integrally prefabricated T-shaped corner post realizes the The staggered occlusion between the prefabricated door header plates improves the connection firmness between the present invention and the prefabricated door header plates.

Please refer to Fig. 14 and Fig. 15. When actually constructing the door opening, the prefabricated slurry storage tank 171 at the notch of the T-shaped corner column and the prefabricated slurry storage tank 701 of the prefabricated door header plate are combined to form a slurry storage channel, which is in the slurry storage channel. Densely filled mortar; T-shaped corner column and prefabricated door head board are bonded and connected through the densely filled mortar in the slurry storage channel. After the mortar is solidified, a secondary connection body with internal bolt function is formed. It can effectively prevent the relative displacement and deformation between the T-shaped corner column and the prefabricated door head plate caused by external force, and improve the connection firmness of the T-shaped corner column and the prefabricated door head plate. The provided joint groove is spliced with the joint groove of the prefabricated door head board to form an anti-crack edge-sealing groove, and a mesh cloth and anti-crack mortar are laid in the anti-crack edge-sealing groove to form a crack-resistant connection body. The above-mentioned anti-crack connector and secondary connector firmly connect the T-shaped corner column and the prefabricated door header from the inside to the outside, which completely solves the problem of cracking at the splicing point of the T-shaped corner column and the prefabricated door header; , the above-mentioned anti-crack edge sealing groove also has the function of leveling the joints. In the later stage, there is no need to make another layer of mesh cloth and anti-crack mortar plastering on the large area of the whole wall, which reduces the construction cost and improves the construction efficiency. . There is no need for plastering on the surface of the inner wall, and the construction of the decorative layer can be directly carried out on the outer surface of the wall.

To sum up, the present invention solves the cracking at the joint of the existing T-shaped corner plate and the adjacent inner wall partition plate, and improves the operation efficiency; the inner partition wall spliced with the T-shaped corner column and the inner wall partition plate does not need the surface of the wall body. The overall plastering is leveled, and there is no cracking at the joint; it is beneficial to the construction of the decorative surface layer in the later stage, and at the same time, it can avoid the hollowing and falling off of the decorative surface layer due to the insufficient flatness of the inner wall and the cracking of the joint.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, such as in the two corners of the T-shaped corner post There are joint grooves on the side edges and both ends, please refer to Figure 16; it is helpful for leveling with structural beams and floor sealing; another example: in order to apply to some lightweight interior walls with higher strength requirements; the partition wall slat body There is a mesh 160 embedded in the interior, and the mesh is a steel mesh or an alkali-resistant glass fiber mesh; the mesh is used to improve the bending resistance, impact resistance and earthquake resistance of the partition wall slats, see Figure 17. All should be included within the protection scope of the present invention.

Claims (10)

1. a kind of crack resistence prefabricated T-shaped corner-pillar, including three corner bodies, which is characterized in that three corner outsides are along high Degree direction is equipped with vertical prefabricated slurry storage tank, is at least equipped with seam slot in the both sides of the edge of three external ends of corner.

2. crack resistence prefabricated T-shaped corner-pillar according to claim 1, it is characterised in that: in the vertical prefabricated slurry storage tank Integral preform has several barriers, and the height of the barrier is less than the depth of vertical prefabricated slurry storage tank.

3. crack resistence prefabricated T-shaped corner-pillar according to claim 1, it is characterised in that: the upper end of three corner bodies Face and/or lower end surface are equipped with the prefabricated slurry storage tank of level being connected to vertical prefabricated slurry storage tank.

4. crack resistence prefabricated T-shaped corner-pillar according to claim 2, it is characterised in that: two sides up and down of the barrier to Center is equipped with drafting angle.

5. crack resistence prefabricated T-shaped corner-pillar according to claim 1, it is characterised in that: horizontal, the vertical prefabricated storage slurry The width of slot notch is greater than the width of slot bottom.

6. crack resistence prefabricated T-shaped corner-pillar according to claim 1, it is characterised in that: in two side seams slot of T-type corner body Lower part is equipped with slip casting reserved opening at 50~100mm of lower surface, and slip casting reserved opening is connected to vertical prefabricated slurry storage tank.

7. crack resistence prefabricated T-shaped corner-pillar according to claim 1, it is characterised in that: a length of 2000mm of T-type corner body ~3300mm, with a thickness of 90~200mm, the length of three corner bodies is at least 100mm.

8. crack resistence prefabricated T-shaped corner-pillar according to claim 1, it is characterised in that: be embedded with steel in three corner bodies Muscle inserting set.

9. crack resistence prefabricated T-shaped corner-pillar according to claim 1, it is characterised in that: be embedded with and stretch in three corner bodies The reinforcing bar of T-type corner-pillar upper surface and/or lower surface out.

10. crack resistence prefabricated T-shaped corner-pillar according to claim 1, it is characterised in that: in three corner bodies wherein One corner body is equipped with notch；It is equipped with prefabricated slurry storage tank in the inner surface of notch, is equipped with seam slot at the edge of notch.