CN217949369U

CN217949369U - Vertical concatenation seam drainage structures of prefabricated plate

Info

Publication number: CN217949369U
Application number: CN202221168571.2U
Authority: CN
Inventors: 黄勇; 宋千军; 叶尔扎提·哈卡尔; 周娜娜; 杨文涛
Original assignee: Sixth Construction Co Ltd of China Construction Fourth Engineering Division Co Ltd
Current assignee: Sixth Construction Co Ltd of China Construction Fourth Engineering Division Co Ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-12-02
Anticipated expiration: 2032-05-16

Abstract

The invention discloses a drainage structure of a vertical splicing seam of a prefabricated plate, wherein a water falling groove and a drainage pipe are arranged in the vertical splicing seam; the drain pipe is positioned below the drainage port of the drainage groove; the drain pipe is located outside the vertical splicing seam outside sealing structure. The invention effectively prevents water accumulation in the vertical splicing seams of the prefabricated parts in the building.

Description

Vertical concatenation seam drainage structures of prefabricated plate

Technical Field

The invention relates to the field of assembly type building construction, in particular to a prefabricated slab vertical splicing seam drainage structure.

Background

In the field of assembly type building construction, all adopted prefabricated components are connected through reinforced concrete, and PC splicing seams are reserved at splicing installation positions of the prefabricated components. The construction period is often longer, the PC component is holed at the position of the cantilever layer due to the placement of the I-steel, and the splicing seams need to be processed after an external coating unit enters the field. In the construction process, rainwater can enter the PC splicing seam through the reserved hole, accumulated water is formed in the splicing seam, and the construction quality of the later-stage sealing weather-resistant adhesive is affected. Simultaneously, after two three cold and warm periods, the weather-resistant glue cracks, so that the water seepage risk of an owner room is caused, and the outer vertical face falls off under the dangerous condition, so that the safety of pedestrians and the decorative appearance of the outer vertical face of a house are influenced.

Chinese patent application CN106894530A discloses a waterproof structure for vertical splicing of prefabricated sandwich thermal insulation wallboards and an installation method thereof. It is disclosed in its background that the current vertical seams are sealed with sealant and PE bars. There is no concern about the disposal of accumulated water in the vertical seams. Meanwhile, the patent application discloses that the left end and the right end of the outer prefabricated wall plate are fixedly provided with baffle connecting buckles through embedding; two ends of the waterproof baffle are fixedly connected with the adjacent baffle connecting buckles; baffle connection buckle is omega shape, waterproof baffle is I shape, and waterproof baffle's both ends insert joint portion in the connection buckle to the card is established among the baffle connection buckle. It is only disclosed that water is prevented from entering the vertical seams from the side of the outer wall, but it is not disclosed how water entering the vertical seams from above is prevented and treated.

Chinese patent application 2015107935391 discloses a waterproof method for joints of prefabricated exterior walls of fabricated buildings, wherein vertical joints of the prefabricated exterior walls adopt the same structure as horizontal joints, the exterior walls adopt a grouting method when being stressed walls, namely stressed lateral-force-resistant members, and the exterior walls adopt a setting slurry method when only maintaining the structure; the water-saving wall is realized by a groove and tongue, a cavity structure and outer wall sealant, and the groove and tongue adopt a method of being high inside and low outside to ensure that one direction of water flow is still outdoor even if water enters indoors. Waterproof conduits are arranged at the joints of the horizontal seams and the vertical seams of the outer wall.

Although in the patent application, the vertical seam adopts the same structure as the horizontal seam, and the joint of the horizontal seam and the vertical seam is provided with the waterproof conduit, water enters the bottom of the vertical seam from the top in the vertical seam, and can only be discharged through the waterproof conduit or the tongue-and-groove structure after the water enters the bottom of the vertical seam. Moreover, in the patent application, for waterproofing, the vertical seam structure is complicated, the processing cost of the tongue and groove is high, and the construction cost is high.

Therefore, how to simply and reliably solve the problem of water accumulation in the vertical splicing seams of the prefabricated panels is a technical problem which needs to be solved urgently.

Disclosure of Invention

The invention aims to provide a drainage structure, wherein a water falling groove and a drainage pipe are arranged in a vertical splicing seam, rainwater falling into the vertical splicing seam can be drained, and a good waterproof and drainage effect is achieved.

In order to achieve the purpose, the technical scheme provided by the invention is that the vertical splicing seam drainage structure of the prefabricated plate is characterized in that a water falling groove and a drainage pipe are arranged in the vertical splicing seam; the drain pipe is positioned below the drainage port of the water falling groove; the drain pipe is located on the outer side or the inner side of the sealing structure on the outer side of the vertical splicing seam.

Preferably, the bottom of the water falling groove is of an inclined plane structure.

Preferably, the width and the depth of the water falling groove are consistent with those of the vertical splicing seam.

Preferably, the sealing structure comprises a sealant arranged in the vertical splicing seam and close to the outer side.

Preferably, the device also comprises a transverse splicing seam, and the transverse splicing seam and the vertical splicing seam are in a cross structure; the water falling groove is located above the transverse splicing seam, and the drain pipe is located on the outer side of the sealing structure of the transverse splicing seam.

Preferably, the sealing structure in the transverse splicing seam comprises a base slurry and a grouting material which are filled in the transverse splicing seam, a PE rod is arranged at the position, close to the outer side, of the transverse splicing seam, and the drain pipe is located on the outer side of the PE rod.

The prefabricated slab vertical splicing seam drainage structure can drain rainwater in the vertical splicing seam and prevent leakage; and simple structure, the installation is convenient, low cost, has fine effect on the waterproof of structure, can bring inspiration and thinking for the specialty to engage in PC structural design designer.

Drawings

FIG. 1 is a schematic top view of a prefabricated panel vertical splice joint with a drain pipe within the splice joint, with a sealant structure.

FIG. 2 is a schematic view of drainage of the vertical splice joint of the prefabricated panels of FIG. 1.

FIG. 3 is a schematic view of a drainage structure without a sealant structure when the horizontal and vertical splice seams are in a cross structure.

Fig. 4 is a schematic view of the structure of the sink and drain.

FIG. 5 is a schematic view of the structure of the drain pipe outside the vertical splice.

Detailed Description

The above technical solutions are described in detail with reference to the drawings and preferred embodiments.

Referring to fig. 1 to 4, after the PC prefabricated panels a are installed and fixed, a vertical splicing seam 10 is left between the two PC prefabricated panels, and the seam depth of the vertical splicing seam 10 is 100mm and the seam width is 20mm. And a water falling groove 20 is arranged in the vertical splicing seam 10, and the water falling groove 20 can be fixed in the vertical splicing seam through a screw. Or a transverse support frame is arranged in the vertical splicing seam, and the water falling groove is placed on the support frame and fixed. The depth and the width of the water falling groove 20 are consistent with those of the vertical splicing seams, so that rainwater falling into the vertical splicing seams can be collected in the water falling groove. The bottom inclined plane structure of the water falling groove facilitates rainwater to be discharged from the inside to the outside of the splicing seam. For better collection of rainwater, the groove of falling into water is the wedge groove structure, and the bottom has certain slope, and the rainwater of collecting can be better assemble with the groove bottom of falling into water. A drain pipe 30 is provided under the drain port of the water falling tank, and water discharged from the water falling tank enters the drain pipe 30 and is discharged through the drain pipe 30.

And sealing glue 11 is arranged on the outer side of the vertical splicing seam 10 to seal the outer side of the vertical splicing seam.

Referring to fig. 3, a cross-shaped splice seam is also formed when the PC precast panels are installed, and the cross-shaped splice seam includes a vertical splice seam 10 and a horizontal splice seam 50. During construction, the transverse splicing seam 50 needs to be treated, the base slurry 51 and the grouting material 52 are filled in the splicing seam 50 for structural fixation, and the groove is sealed by a PE rod 53 at the outer side of the groove of the transverse splicing seam. The horizontal splicing seam is filled with the base slurry and the grouting material, and the tongue-and-groove structure can prevent moisture from entering the horizontal splicing seam, so that the water seepage problem at the horizontal splicing seam is not considered too much.

The water falling groove 20 arranged in the vertical splicing seam 10 is located above the transverse splicing seam, the drain pipe 30 is located on the outer side of the PE rod 53, and the collected rainwater in the vertical splicing seam is discharged to the rabbet on the outer side of the PE rod of the transverse splicing seam and then is discharged through the rabbet.

The purpose of the drain pipe 30 being located outside the vertical splice is to drain the water inside the splice. Because the degree of depth of vertical concatenation seam is darker, gather after vertical concatenation seam the inside when the rainwater, again sealed glue is sealed, will ponding sealed in the concatenation seam, forms the hidden danger to later stage PC component root seepage.

And after the outer coating company is parked, coating a sealing adhesive layer on the outer side of the splicing seam to completely seal the outer side seam openings of the vertical splicing seam and the transverse splicing seam, and directly sealing the drain pipe in the splicing seam. After the sealant is constructed, the PC splicing seam becomes a sealed integral state, external capillary water cannot enter the room due to the action of the sealant and the PE rod, and the hidden danger of water seepage is avoided.

In the structure, the drain pipe is positioned on the inner side of the sealant, and the drain pipe and the water falling groove are not required to be detached.

Referring to fig. 5, a drain pipe 30 may be disposed outside the vertical splice to drain the collected rainwater. And before sealing by the sealant, removing the water falling groove and the drain pipe, and then sealing. The disassembled water falling groove and the disassembled water draining pipe can be recycled. The materials can be recycled while the drainage of the splicing seams is realized.

The drainage structure for the vertical splicing seams of the prefabricated plates is simple to operate and low in cost, and can drain the vertical splicing seams of the PC prefabricated plates in advance, reduce the hidden danger of later-stage leakage and avoid the falling of the outer vertical surfaces of PC components to influence the construction quality of engineering.

Claims

1. A vertical splicing seam drainage structure of a prefabricated slab is characterized in that a water falling groove and a drainage pipe are arranged in a vertical splicing seam; the drain pipe is positioned below the drainage port of the drainage groove; the drain pipe is located on the outer side or the inner side of the sealing structure on the outer side of the vertical splicing seam.

2. The prefabricated slab vertical splicing seam drainage structure of claim 1, wherein the bottom of the water falling tank is of a slope structure.

3. The prefabricated slab vertical splicing seam drainage structure of claim 1, wherein the width and the depth of the water falling groove are consistent with those of the vertical splicing seam.

4. The prefabricated panel vertical splice joint drainage structure of claim 1, wherein said sealing structure comprises a sealant disposed in the vertical splice joint near the outside.

5. The prefabricated slab vertical splicing seam drainage structure as claimed in claim 1, further comprising a transverse splicing seam, wherein the transverse splicing seam and the vertical splicing seam are in a cross structure; the water falling groove is positioned above the transverse splicing seam, and the drain pipe is positioned outside the sealing structure of the transverse splicing seam.

6. The prefabricated slab vertical splicing seam drainage structure of claim 5, wherein the sealing structure in the transverse splicing seam comprises a seat slurry and a grouting material filled in the transverse splicing seam, a PE rod is arranged at the position, close to the outer side, of the transverse splicing seam, and the drainage pipe is positioned at the outer side of the PE rod.