CN213773830U

CN213773830U - Waterproof structure for joint of prefabricated external wall panel and floor slab

Info

Publication number: CN213773830U
Application number: CN202022216964.3U
Authority: CN
Inventors: 张剑; 谭新明; 罗旺; 戴素亮; 胡政; 胡钢; 徐婷; 康亦军; 彭靖华; 李诗韬; 谢勇飞; 肖康
Original assignee: Changsha Broad Homes Industrial Group Co Ltd
Current assignee: Changsha Broad Homes Industrial Group Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-07-23
Anticipated expiration: 2030-09-30

Abstract

A waterproof structure for the joint of a prefabricated external wall panel and a floor slab comprises an upper wall panel, a cast-in-place beam and the floor slab, wherein the cast-in-place beam and the floor slab are cast in place into a whole, a first tongue-and-groove is cast in place at the top of the cast-in-place beam, a second tongue-and-groove is arranged at the bottom of the upper wall panel, the first tongue-and-groove and the second tongue-and-groove are clamped with each other, and the first tongue-and-groove is not higher than the top surface of the floor slab. The utility model discloses can reduce the damage to first tongue-and-groove when prefabricated exterior wall panel installation and cast-in-place roof beam are pour as far as possible to avoid influencing the waterproof performance of prefabricated exterior wall panel and floor junction because of the damage of first tongue-and-groove.

Description

Waterproof structure for joint of prefabricated external wall panel and floor slab

Technical Field

The utility model relates to a prefabricated assembly type structure, especially a prefabricated side fascia and floor junction waterproof construction.

Background

In a prefabricated assembly type building, a cast-in-place tongue-and-groove waterproof structure is usually arranged on the beam top of a cast-in-place beam during installation of a prefabricated external wall panel, and specifically, tongue-and-groove molding is synchronously cast on the beam top during cast-in-place beam casting. However, as shown in the chinese patent application CN110820928A, since the cast-in-place tongue and groove of the cast-in-place beam protrudes out of the laminated floor slab, the cast-in-place tongue and groove is easily damaged during the installation and casting processes. In addition, the upper wall plate of the prefabricated external wall plate is heavy, so that the requirement on the forming quality of a cast-in-place rabbet is high during installation, and the waterproof and anti-seepage effects of a building are directly influenced due to poor forming quality of the cast-in-place rabbet or damage in the construction process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that, the cast-in-place tongue-and-groove to the cast-in-place roof beam top of current prefabricated wall panel and floor junction is fragile not enough, provides one kind and can reduce the cast-in-place tongue-and-groove at cast-in-place roof beam top and damage, and satisfies waterproof requirement's prefabricated wall panel and floor junction waterproof construction.

In order to solve the technical problem, the utility model provides a prefabricated side fascia and floor junction waterproof construction, including last wallboard, cast-in-place roof beam and floor, cast-in-place roof beam with the floor is cast-in-place to become an organic whole, cast-in-place roof beam's top has first tongue-and-groove, the bottom of last wallboard is provided with the second tongue-and-groove, first tongue-and-groove with the mutual block of second tongue-and-groove, first tongue-and-groove is not higher than the top surface of floor.

The utility model discloses a set up the first tongue-and-groove at cast-in-place roof beam top into the top surface that is not higher than the floor for when prefabricated side fascia installation and cast-in-place roof beam are pour, can reduce the damage to first tongue-and-groove as far as possible, thereby avoid influencing the waterproof performance of prefabricated side fascia and floor junction because of the damage of first tongue-and-groove.

Further, the top of floor is provided with first breach, the bottom of the indoor side of top wall board is provided with the second breach, just first breach is just right the second breach sets up, be provided with L type connecting piece in first breach and the second breach to with first connecting piece will the one end and the top wall board of L type connecting piece are connected, the other end of L type connecting piece passes through the second connecting piece and is connected with the floor. Therefore, the L-shaped connecting piece not only realizes the connection and fixation of the upper wallboard and the floor slab, but also does not protrude out of the surface of the upper wallboard and is not higher than the top surface of the floor slab, thereby avoiding the influence of the L-shaped connecting piece on the inner decoration of the upper wallboard and the floor decoration of the floor slab.

Furthermore, a first connecting hole is formed in the L-shaped connecting piece, the first connecting piece comprises a first bolt and a positioning sleeve embedded in the upper wall plate, and the first bolt penetrates through the first connecting hole and is locked with the positioning sleeve.

Further, a second connecting hole is formed in the L-shaped connecting piece, the second connecting piece comprises a second bolt, and the second bolt penetrates through the second connecting hole and is connected with the floor slab.

Furthermore, the upper wallboard and the floor slab are connected and fixed through the L-shaped connecting piece and then filled with mortar to fill the first gap and the second gap, so that the first gap and the second gap are prevented from influencing the inner side decoration of the upper wallboard and the floor decoration of the floor slab.

Furthermore, the outer water retaining surface of the first rabbet is perpendicular to the horizontal plane, so that the forming of the first rabbet is simpler, and the forming quality is ensured.

Further, a first weight-reducing heat-insulating plate is arranged in the upper wall plate.

Further, the floor slab is a composite floor slab, the composite floor slab comprises a cast-in-place layer and a prefabricated layer, and the first notch is formed in the top of the cast-in-place layer.

Further, the cast-in-place beam is arranged at the top of the lower wall plate, and a second weight-reducing heat-insulating plate is arranged in the lower wall plate.

Further, a steel reinforcement cage is arranged in the cast-in-place beam, and the lower wallboard and the floor slab are connected with the steel reinforcement cage through steel reinforcements.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the first tongue-and-groove at cast-in-place roof beam top into the top surface that is not higher than the floor that is connected for when prefabricated wall panel installation and cast-in-place roof beam are pour, can reduce the damage to first tongue-and-groove as far as possible, thereby avoid influencing the waterproof performance of prefabricated wall panel and floor junction because of the damage of first tongue-and-groove.

2. The utility model discloses a surface of installation protrusion in the last wallboard of L type connecting piece, and be not higher than the top surface of floor, therefore can not influence the inboard fitment of last wallboard and the floor fitment of floor.

3. The utility model discloses an outside manger plate face perpendicular to horizontal plane setting of first tongue-and-groove, for cast-in-place roof beam tongue-and-groove's among the prior art outside manger plate face slope sets up, the utility model discloses a shaping of first tongue-and-groove is more simple, and the shaping quality is higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is the utility model discloses a prefabricated wall panel and floor junction waterproof construction's schematic structure.

In the figure:

1. a top wall panel; 2. casting a beam in situ; 3. a floor slab; 4. an L-shaped connector; 5. a first bolt; 6. a lower wallboard; 7. a reinforcement cage; 8. a positioning sleeve; 9. a second bolt; 10. a polyethylene rod; 11. a second tongue-and-groove; 12. a second notch; 13. a first weight-reducing insulation board; 21. a first tongue-and-groove; 31. a first notch; 32. a cast-in-place layer; 33. prefabricating a layer; 61. and the second weight-reduction heat-insulation plate.

Detailed Description

The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.

For convenience of description, the relative positional relationship of the components, such as: the descriptions of the upper, lower, left, right, etc. are described with reference to the layout directions of the drawings in the specification, and do not limit the structure of the present patent.

As shown in fig. 1, an embodiment of the waterproof structure of the joint between the prefabricated external wall panel and the floor slab of the utility model comprises an upper wall panel 1, a cast-in-place beam 2 and a floor slab 3, the cast-in-place beam 2 and the floor slab 3 are cast in place into a whole, a first tongue-and-groove 21 is cast in place at the top of the cast-in-place beam 2, a second tongue-and-groove 11 is arranged at the bottom of the upper wall panel 1, the first tongue-and-groove 21 is mutually clamped with the second tongue-and-groove 11, and the first tongue-and-groove 21 is not higher than the top surface of the floor slab 3.

The floor slab 3 is a laminated floor slab and comprises a cast-in-place layer 32 and a prefabricated layer 33, a first notch 31 is formed in the top of the cast-in-place layer 32, and the first notch 31 is located on the indoor side of the first rabbet 21. The bottom of the indoor side of the upper wall plate 1 is provided with a second notch 12. First breach 31 sets up under second breach 12, just be provided with L type connecting piece 4 in first breach 31 and the second breach 12, and will with first bolt 5 the one end of L type connecting piece 4 is connected fixedly with the position sleeve 8 of inlaying on upper wall panel 1, will with second bolt 9 the other end of L type connecting piece 4 is connected fixedly with floor 3.

The upper wallboard 1 and the floor slab 3 are connected and fixed through the L-shaped connecting piece 4 and then filled with mortar in the first gap 31 and the second gap 12, so that the first gap 31 and the second gap 12 are prevented from influencing the inner side decoration of the upper wallboard 1 and the floor decoration of the floor slab 3.

The cast-in-place beam 2 is arranged at the top of the lower wallboard 6, a reinforcement cage 7 is arranged in the cast-in-place beam 2, and the lower wallboard 6, the cast-in-place layer 32 and the prefabricated layer 33 of the floor slab 3 are connected with the reinforcement cage 7 in the cast-in-place beam 2 through reinforcing steel bars.

In order to simplify the molding of the first tongue-and-groove 21 and improve the molding quality of the first tongue-and-groove 21, the outer water retaining surface of the first tongue-and-groove 21 is arranged perpendicular to the horizontal plane.

In order to reduce the bearing and provide the heat preservation effect, a first weight-reduction heat preservation plate 13 is arranged in the upper wall plate 1, and a second weight-reduction heat preservation plate 61 is arranged in the lower wall plate 6.

When the utility model is implemented, firstly, the first rabbet 21 on the cast-in-situ beam 2 supporting the upper wall plate 1 is adjusted to be not higher than the top surface of the floor plate 3, the waterproof performance of the outer wall can be effectively improved through the matching of the second rabbet 11 arranged at the bottom of the upper wall plate 1 and the first rabbet 21, meanwhile, the positioning sleeve 8 is embedded into the wall body of the upper wall plate 1 and serves as a permanent connecting sleeve, the second notch 12 with the depth of 200mm multiplied by 50mm is reserved at the bottom of the indoor side of the upper wall plate 1, the first notch 31 is reserved on the floor plate 3, the L-shaped connecting piece 4 is put into the first notch 31 and the second notch 12, one end of the L-shaped connecting piece 4 is connected and fixed with the positioning sleeve 8 embedded on the upper wall plate 1 by the first bolt 5, the other end of the L-shaped connecting piece 4 is connected and fixed with the floor plate 3 by the second bolt 9, then the first notch 31 and the second notch 12 are filled with mortar after the L-shaped connecting piece 4 is connected and fixed, the inner side decoration of the upper wallboard 1 and the floor decoration of the floor slab 3 are not influenced, the sealing interface treatment is carried out between the upper wallboard 1 and the cast-in-place beam 2, the polyethylene rod 10 is filled, and finally the sealant is injected for construction after the gluing interface treatment.

The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.

Claims

1. A waterproof structure for the joint of a prefabricated external wall panel and a floor slab comprises an upper wall panel, a cast-in-place beam and the floor slab, wherein the cast-in-place beam and the floor slab are cast in place into a whole, a first rabbet is cast in the top of the cast-in-place beam, a second rabbet is arranged at the bottom of the upper wall panel, and the first rabbet and the second rabbet are clamped with each other.

2. The waterproof structure for the joint of the prefabricated external wall panel and the floor slab as claimed in claim 1, wherein a first notch is formed in the top of the floor slab, a second notch is formed in the bottom of the indoor side of the upper wall panel, the first notch is arranged opposite to the second notch, L-shaped connecting pieces are arranged in the first notch and the second notch, one end of each L-shaped connecting piece is connected with the upper wall panel through a first connecting piece, and the other end of each L-shaped connecting piece is connected with the floor slab through a second connecting piece.

3. The waterproof structure for the joint of the prefabricated external wall panel and the floor slab as claimed in claim 2, wherein the L-shaped connecting member is provided with a first connecting hole, the first connecting member comprises a first bolt and a positioning sleeve embedded in the upper wall panel, and the first bolt passes through the first connecting hole and is locked with the positioning sleeve.

4. The waterproof structure for the joint of the prefabricated external wall panel and the floor slab as claimed in claim 2, wherein the L-shaped connecting member is provided with a second connecting hole, the second connecting member comprises a second bolt, and the second bolt penetrates through the second connecting hole to be connected with the floor slab.

5. The waterproof structure for the joint of the prefabricated external wall panel and the floor slab as claimed in claim 2, wherein the first notch and the second notch are filled with mortar.

6. The waterproof structure for the joint of the prefabricated external wall panel and the floor slab as claimed in claim 2, wherein the floor slab is a composite floor slab, the composite floor slab comprises a cast-in-place layer and a prefabricated layer, and the first notch is formed in the top of the cast-in-place layer.

7. The waterproof structure for the joint of the prefabricated external wall panel and the floor slab as claimed in claim 1, wherein a first weight-reduction heat-insulation board is arranged in the upper wall panel.

8. The prefabricated external wall panel and floor slab joint waterproof structure as claimed in claim 1, wherein the outer water blocking surface of the first tongue-and-groove is disposed perpendicular to a horizontal plane.

9. The waterproof structure for the joint of the prefabricated external wall panel and the floor slab as claimed in claim 1, wherein the cast-in-place beam is arranged on the top of the lower wall panel, and a second weight-reducing heat-insulating plate is arranged in the lower wall panel.

10. The waterproof structure for the joint of the prefabricated external wall panel and the floor slab as claimed in claim 9, wherein a reinforcement cage is arranged in the cast-in-place beam, and the lower wall panel and the floor slab are connected with the reinforcement cage through a reinforcement.