CN216196849U - Waterproof construction of new and old building concrete bottom plate linking department - Google Patents

Waterproof construction of new and old building concrete bottom plate linking department Download PDF

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Publication number
CN216196849U
CN216196849U CN202122767275.6U CN202122767275U CN216196849U CN 216196849 U CN216196849 U CN 216196849U CN 202122767275 U CN202122767275 U CN 202122767275U CN 216196849 U CN216196849 U CN 216196849U
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layer
waterproof
water stop
concrete
new
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CN202122767275.6U
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肖力文
徐恒亮
张卫龙
孙玉林
王香彬
田维峰
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China Nuclear Industry Huaxing Construction Co Ltd
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China Nuclear Industry Huaxing Construction Co Ltd
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Abstract

The utility model discloses a waterproof structure of a joint of concrete bottom plates of a new building and an old building, which comprises the following components: the waterproof structure comprises a bottom plate layer, a connection region, a waterproof coiled material, an asphalt waterproof coating, a first concrete layer, a first water stop, a second water stop, an extruded sheet, a pouring belt pouring layer and a second concrete layer, wherein the connection region is positioned on the bottom plate layer, the waterproof coiled material is laid on the connection region and the bottom plate layer, the waterproof coiled material is provided with the first concrete layer, the first water stop is fixedly connected on the side wall of the waterproof coiled material, the first water stop is positioned between the first concrete layer and the waterproof coiled material, the asphalt waterproof coating is arranged on the side wall of the connection region above the waterproof coiled material, the second water stop is fixedly connected with the asphalt waterproof coating, the extruded sheet is fixedly connected on the top surface of the second water stop, the pouring belt pouring layer is arranged between one side of the extruded sheet and the connection region, and the second concrete layer is arranged above the other side of the extruded sheet and the first concrete layer. The waterproof structure has good waterproof performance and is not easy to crack.

Description

Waterproof construction of new and old building concrete bottom plate linking department
Technical Field
The utility model relates to the technical field of building waterproofing, in particular to a waterproof structure at the joint of concrete bottom plates of new and old buildings.
Background
Old buildings can be endowed with new lives through transformation, urban service functions can be effectively improved, and the heavy feeling of urban development history is enhanced; the reconstruction, expansion and reutilization of the old building can achieve the purposes of space division, extension, connection, opening and the like, thereby modeling abundant space forms and endowing the building with abundant spirit and cultural connotation.
In the old building transformation project, the research on the key technology of adding a layer and locally filling piles for transforming the existing cast-in-place structure building basement shows that cracks are easily generated at the joints of the new concrete and the old concrete at the height difference positions of the basement bottom plate, and the waterproof performance has great hidden troubles.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides the waterproof structure for the joint of the concrete bottom plates of the new building and the old building, which solves the problems of cracks at the joint of the concrete of the new building and the old building and poor waterproof performance.
In order to achieve the purpose, the utility model adopts the following technical scheme: a waterproof structure of a joint of concrete bottom plates of old and new buildings comprises: a bottom plate layer, a connection area, a waterproof coiled material, an asphalt waterproof coating, a first concrete layer, a first water stop, a second water stop, an extruded sheet, a pouring belt pouring layer and a second concrete layer, the joining area is positioned on the bottom plate layer, the waterproof coiled material is laid on the joining area and the bottom plate layer, a first concrete layer is arranged on the waterproof coiled material, the side wall of the waterproof roll is fixedly connected with a first water stop, the first water stop is positioned between the first concrete layer and the waterproof roll, the side wall of a connection area positioned above the waterproof roll is provided with an asphalt waterproof coating, the second water stop is fixedly connected with the asphalt waterproof coating, the top surface of the second water stop is fixedly connected with an extruded sheet, a pouring belt pouring layer is arranged between one side of the extruded sheet and the connecting area, and a second concrete layer is arranged above the other side of the extruded sheet and the first concrete layer.
Further, the linking area comprises a height difference section, an inverted convex section and an inclined section which are connected in sequence, and the inverted convex section is connected with the height difference section through a fillet.
Further, waterproofing membrane is located the inverted-convex section, and the casting belt pouring layer is located the inverted-inclined section.
Further, the second water stop belt is fixedly connected with the side wall of the inclined section through an expansion water stop strip.
Further, the thickness of the first waterstop is twice the thickness of the second waterstop.
Further, still include: the bottom plate layer is arranged at the top of the connection area and provided with a mounting groove, the mounting groove is fixedly connected with one end of the hydrophobic plate, and the hydrophobic plate is fixedly connected with the extruded sheet at the position close to the other end.
Further, the upper surface of the hydrophobic plate, the upper surface of the floor layer and the upper surface of the second concrete layer are located on the same horizontal plane.
Furthermore, a plurality of uniformly distributed pouring holes are formed in the center of the top of the second concrete layer, and a non-cured rubber asphalt layer is filled in each pouring hole.
Further, the first concrete layer is located on the lower side of the second water stop.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the inclined section of the joining area is arranged, so that the concrete residue accumulation of an old concrete surface on the side wall can be effectively prevented, the joining area is fully waterproof through the waterproof coiled material and the asphalt waterproof coating, the first water stop and the second water stop are matched to perform waterproof treatment on the side wall again, the top of the joining area is blocked through the hydrophobic plate, the waterproof effect on the side wall of the joining area is further improved, and the waterproof performance of the joining area of a new building and an old building is greatly improved;
2. according to the utility model, through the arrangement of the expansion water stop strip, the installation stability of the second water stop strip can be improved, and the waterproof effect between the second water stop strip and the asphalt waterproof coating can also be improved; the hydrophobic plate is located the top of extruded sheet, both can improve the installation effect to the hydrophobic plate, can pour the layer to the casting belt simultaneously and carry out better water repellent, improves the water repellent of linking district junction.
Drawings
FIG. 1 is a schematic view showing the overall structure of a waterproof structure at the junction of concrete floors of new and old buildings according to the present invention;
FIG. 2 is a partial structural view of a waterproof structure at the joint of the concrete bottom plates of the new building and the old building;
FIG. 3 is an enlarged view of area A of FIG. 2;
FIG. 4 is a schematic view of the connection of the hydrophobic plate structures according to the present invention;
in the figure: 1. a floor layer; 2. an engagement region; 21. an inverted convex section; 22. an inclined section; 23. a height difference part; 3. waterproof coiled materials; 4. an asphalt waterproof coating; 5. a first concrete layer; 7. a first water stop; 8. a second water stop; 9. extruding a plastic plate; 10. pouring a layer on the post-cast strip; 11. a second concrete layer; 12. an expansion water stop bar; 13. mounting grooves; 14. a hydrophobic plate; 15. pouring holes; 16. a non-cured rubber asphalt layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 4, the present invention provides a waterproof structure for a concrete floor joint of a new building and an old building, including: the waterproof roll is characterized by comprising a bottom plate layer 1, a connecting area 2, a waterproof roll 3, an asphalt waterproof coating 4, a first concrete layer 5, a first water stop 7, a second water stop 8, an extruded sheet 9, a pouring belt pouring layer 10 and a second concrete layer 11, wherein the connecting area 2 is positioned on the bottom plate layer 1, the waterproof roll 3 is laid on the connecting area 2 and the bottom plate layer 1, the waterproof roll 3 is provided with the first concrete layer 5, the side wall of the waterproof roll 3 is fixedly connected with the first water stop 7, the first water stop 7 is positioned between the first concrete layer 5 and the waterproof roll 3, the side wall of the connecting area 2 above the waterproof roll 3 is provided with the asphalt waterproof coating 4, the second water stop 8 is fixedly connected with the asphalt waterproof coating 4, the top surface of the second water stop 8 is fixedly connected with the extruded sheet 9, the pouring belt pouring layer 10 is arranged between one side of the extruded sheet 9 and the connecting area 2, the other side of the extruded sheet 9 and the upper side of the first concrete layer 5 are provided with the second concrete layer 1, the first concrete layer 5 is located on the underside of the second waterstop 8. The thickness of the first water stop 7 is twice that of the second water stop 8, the inner wall of the connection area 2 is fully waterproof through the waterproof coiled material 3 and the asphalt waterproof coating 4, and the first water stop and the second water stop are used for preventing water again, so that the waterproof performance of the connection area during pouring is fully improved, and the arrangement of the extruded sheet 9 and the pouring belt pouring layer 10 can effectively prevent the second concrete layer 11 from generating harmful cracks due to nonuniform self shrinkage or nonuniform settlement.
The connection area 2 comprises a height difference section 23, an inverted convex section 21 and an inclined section 22 which are sequentially connected, and the inverted convex section 21 and the inclined section 22 are arranged to prevent water from dripping on the side wall of the connection area 2, so that the waterproof effect on the bottom plate layer 1 is improved; the inclined section 22 is two-section inclined, can effectively prevent water, and the inverted convex section 21 is connected with the height difference section 23 through a fillet, so that the waterproof roll 3 is convenient to install and the asphalt waterproof coating 4 is convenient to apply paint. According to the utility model, the waterproof coiled material 3 is positioned in the inverted convex section 21, the pouring belt pouring layer 10 is positioned in the inverted inclined section 22, the second water stop 8 is fixedly connected with the side wall of the inclined section 22 through the expansion water stop strip 12, and the expansion water stop strip 12 is vertically distributed with the side wall of the inclined section 22, so that the installation stability of the second water stop 8 can be improved, and the waterproof effect between the second water stop 8 and the asphalt waterproof coating 4 can be improved.
The waterproof structure of the joint of the concrete bottom plates of the new building and the old building further comprises: the bottom plate layer 1 is provided with a mounting groove 13 at the top of the connection region 2, the mounting groove 13 is fixedly connected with one end of the hydrophobic plate 14, the hydrophobic plate 14 is fixedly connected with the extruded sheet 9 at the position close to the other end, so that the mounting effect of the hydrophobic plate 14 is improved, meanwhile, the pouring layer 10 of the pouring belt can be subjected to better waterproof treatment, and the waterproof effect of the connection part of the connection region 2 is improved; further, hydrophobic plate 14's setting carries out abundant water repellent to the linking district 2 of bottom plate layer 1, and the multiple waterproof of cooperation first waterstop 7, second waterstop 8 and waterproofing membrane 3 further improves waterproof performance. According to the utility model, the upper surface of the hydrophobic plate 14, the upper surface of the bottom plate layer 1 and the upper surface of the second concrete layer 11 are positioned on the same horizontal plane, so that the flatness of the bottom plate layer 1, the second concrete layer 11 and the hydrophobic plate 14 is improved.
In the utility model, a plurality of uniformly distributed pouring holes 15 are formed in the center of the top of the second concrete layer 11, non-cured rubber asphalt 16 is filled in each pouring hole 15, and the arrangement of the pouring holes 15 is used for ensuring the uniformity and stability of the second concrete layer 11 during pouring.
The working process of the utility model is specifically as follows: when the waterproof treatment is carried out on the concrete crack of a new building and an old building, the inclined sections 22 at the bottoms of the two sides of the joining area 2 on the bottom plate layer 1 are obliquely constructed, the bottom surface and the side surface of the joining area 2 of the bottom plate layer 1 are cleaned by a steel wire brush and a high-pressure water gun to ensure that no suspended matters and residues are left on the surface of the bottom plate layer 1 after the cleaning, then the SBS modified waterproof coiled material 3 is paved on the joining area 2 and the bottom plate layer 1, the waterproof coiled material 3 is subjected to edge lapping treatment on the joining area 2 to ensure that the SBS modified waterproof coiled material 3 on the bottom plate layer 1 is subjected to full-coverage treatment, the inclined section 22 and the inverted convex section 21 of the joining area 2 are coated with the asphalt waterproof coating 4, so that the side wall of the joining area 2 is subjected to sufficient waterproof treatment, after the paving is finished, the first concrete layer 5 is poured between the waterproof coiled materials 3 until the first concrete layer 5 is stably molded, laying a first water stop 7 on the side surface of the waterproof coiled material 3, fixing a second water stop 8 on the inclined section 22 through an expansion water stop strip 12, fixing an extruded sheet 9 above the second water stop 8, carrying out double waterproof treatment on the connection area 2, carrying out pouring forming treatment on the second concrete layer 11 through the pouring hole 15, pouring the pouring belt pouring layer 10 between the extruded sheet 9 and the inclined section 22 after the pouring forming is finished, for preventing the harmful cracks of the structure at the second concrete layer 11 that may be generated due to the self-shrinkage unevenness or the settlement unevenness, laying a hydrophobic plate 14 at the mounting groove 13 of the bottom plate layer 1, filling a pouring hole 15 with non-cured rubber asphalt 16, the waterproof treatment device is used for performing triple waterproof treatment on the concrete pouring joining area 2 of the new building and the old building, and greatly improves the waterproof performance of the joining area 2 of the new building and the old building.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (9)

1. A waterproof structure of new and old building concrete bottom plate junction, its characterized in that includes: the waterproof roll comprises a bottom plate layer (1), a joining area (2), a waterproof roll (3), an asphalt waterproof coating (4), a first concrete layer (5), a first water stop (7), a second water stop (8), an extruded sheet (9), a pouring belt pouring layer (10) and a second concrete layer (11), wherein the joining area (2) is positioned on the bottom plate layer (1), the waterproof roll (3) is laid on the joining area (2) and the bottom plate layer (1), the waterproof roll (3) is provided with the first concrete layer (5), the side wall of the waterproof roll (3) is fixedly connected with the first water stop (7), the first water stop (7) is positioned between the first concrete layer (5) and the waterproof roll (3), the side wall of the joining area (2) above the waterproof roll (3) is provided with the asphalt waterproof coating (4), and the second water stop (8) is fixedly connected with the asphalt waterproof coating (4), the top surface of the second water stop (8) is fixedly connected with an extruded sheet (9), a pouring belt pouring layer (10) is arranged between one side of the extruded sheet (9) and the connection area (2), and a second concrete layer (1) is arranged on the other side of the extruded sheet (9) and above the first concrete layer (5).
2. The waterproof structure at the junction of the new and old building concrete floors as claimed in claim 1, wherein the junction area (2) comprises a height difference section (23), an inverted convex section (21) and an inclined section (22) which are connected in sequence, and the inverted convex section (21) is connected with the height difference section (23) through a fillet.
3. The waterproofing structure of a new and old building concrete floor junction according to claim 1 wherein the waterproofing roll (3) is located in an inverted convex section (21) and the casting layer (10) is located in an inverted inclined section (22).
4. The waterproof structure at the joint of the concrete bottom plates of the new and old buildings according to claim 1, wherein the second water stop strip (8) is fixedly connected with the side wall of the inclined section (22) through an expansion water stop strip (12).
5. The waterproof structure of the junction of the concrete bottom plates of the new and old buildings according to claim 1, characterized in that the thickness of the first water stop (7) is twice the thickness of the second water stop (8).
6. The waterproof structure for joints of concrete floors of old and new buildings according to claim 1, further comprising: the floor structure comprises a hydrophobic plate (14), wherein a mounting groove (13) is formed in the top of a connection area (2) of the bottom plate layer (1), the mounting groove (13) is fixedly connected with one end of the hydrophobic plate (14), and the hydrophobic plate (14) is fixedly connected with an extruded plate (9) close to the other end.
7. The waterproof structure of the junction of the concrete floors of the old and new buildings according to claim 6, wherein the upper surface of the hydrophobic plate (14), the upper surface of the floor layer (1) and the upper surface of the second concrete layer (11) are located on the same horizontal plane.
8. The waterproof structure at the joint of the concrete bottom plates of the new and old buildings according to claim 1, wherein a plurality of evenly distributed pouring holes (15) are formed in the center of the top of the second concrete layer (11), and the interior of each pouring hole (15) is filled with a non-cured rubber asphalt layer (16).
9. The waterproof structure of the junction of the concrete bottom plates of the old and new buildings according to claim 1, characterized in that the first concrete layer (5) is located on the lower side of the second water stop (8).
CN202122767275.6U 2021-11-12 2021-11-12 Waterproof construction of new and old building concrete bottom plate linking department Active CN216196849U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122767275.6U CN216196849U (en) 2021-11-12 2021-11-12 Waterproof construction of new and old building concrete bottom plate linking department

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Application Number Priority Date Filing Date Title
CN202122767275.6U CN216196849U (en) 2021-11-12 2021-11-12 Waterproof construction of new and old building concrete bottom plate linking department

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114960978A (en) * 2022-05-01 2022-08-30 上海宝冶集团有限公司 Waterproof method for concrete abutted seam without reserved embedded structure in reconstruction and extension structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114960978A (en) * 2022-05-01 2022-08-30 上海宝冶集团有限公司 Waterproof method for concrete abutted seam without reserved embedded structure in reconstruction and extension structure

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