CN111663667B - Antiseep structure of TOD upper cover plate expansion joint - Google Patents
Antiseep structure of TOD upper cover plate expansion joint Download PDFInfo
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- CN111663667B CN111663667B CN202010624414.7A CN202010624414A CN111663667B CN 111663667 B CN111663667 B CN 111663667B CN 202010624414 A CN202010624414 A CN 202010624414A CN 111663667 B CN111663667 B CN 111663667B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6813—Compressable seals of hollow form
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Abstract
The invention relates to an anti-leakage structure of a TOD (touch on device) upper cover plate expansion joint, which comprises a U-shaped first structural plate, a Z-shaped second structural plate, a buffering and water-stopping unit filled at the joint of the second structural plate and the first structural plate, at least one water drainage unit arranged at the bottom of the first structural plate and penetrating through the first structural plate, and a water-avoiding plate arranged at the joint of the first structural plate and the second structural plate. The composite structural plate formed by the U-shaped first structural plate and the Z-shaped second structural plate forms a liquid dredging channel, so that the liquid is prevented from leaking to the expansion joint, and the problems of material failure and the like are not easy to occur; compared with the traditional plugging type anti-leakage method, the anti-leakage effect of the composite structure plate is more durable, the situation that liquid permeates into the space below the upper cover plate and the like due to failure of the anti-leakage material is not easy to occur, the replacement frequency of the anti-leakage material is reduced, the later maintenance difficulty is greatly reduced, and the maintenance cost is reduced.
Description
Technical Field
The invention relates to the technical field of TOD, in particular to an anti-seepage structure of an expansion joint of a TOD upper cover plate.
Background
In the TOD (transit-oriented development, TOD, public transportation-oriented development), the space above the subway is usually used as a planning and construction base, i.e. the space of the upper cover plate of the subway. Compared with the traditional project which takes the land and the ground as bases, the TOD project is constructed by taking the roof of a subway building as a base.
The subway building and the subway upper cover plate thereof usually adopt concrete as building materials, and most of the subway upper cover plates are concrete frame systems. Because the concrete material has thermal expansion and cold contraction caused by temperature change, in order to avoid concrete cracks, an expansion joint needs to be arranged on an upper cover plate of the subway according to the concrete structure design specification.
In order to ensure the operation safety of the subway, deformation joints and expansion joints are not allowed to be arranged in subway stations and rail traffic areas in principle according to the regulations of the design standards of the upper covers of the rail transit in Shanghai city. Because concrete material must establish the seam, but the setting of the expansion joint of subway upper cover plate often needs to combine the arrangement of the subway parking lot of lower part, and not arrange according to the most reasonable expansion joint arrangement principle. Therefore, the expansion joint of the subway upper cover plate can be more flexibly deformed than the expansion joint of the conventional building.
At present, the number of subway upper cover projects in the real sense of China and Shanghai locality is very small, and a systematic seam setting treatment method is not formed. Because the upper part of the upper cover plate usually walks, the existing project usually adopts a national standard drawing centralized parking roof deformation joint method to process the seam of the upper cover plate of the subway. Taking the national standard map set 14J936 deformation joint building construction A series parking roof deformation joint as an example, the conventional construction only considers the blocking of the materials for arranging the joint, and the structure from the surface layer to the bottom layer is generally as follows: the metal cover plate, the 2 layers of water stop belts, the heat insulation material plugging, the fire retardant belts and the drainage ditch. In the national standard map set, as shown in fig. 1, the structure really playing the role of water resistance is actually: metal cover plate, 2 layers of waterstops and a drainage ditch hung below.
The existing anti-leakage design idea adopts the design idea of material plugging. However, this design concept is greatly unstable depending on the installation quality, weather resistance, durability, and the like of the node material itself. Furthermore, this plugging method has the following disadvantages:
the connection between the upper cover plate and the surface layer is usually glue coating on two sides, because the upper part of the upper cover plate is connected with more space types, and adhesive tapes are easy to age and fall off at the joint part, the road surface of frequent carriage and other parts;
if extrusion deformation occurs, the upper cover plate is usually damaged; however, the upper space of the upper cover plate and the surface layer processing mode are different, and if the upper cover plate exposed outside is damaged, the upper cover plate is easy to find and replace; if the upper part of the upper cover plate is covered by the surface layer, the detection and the maintenance cannot be realized;
the water stop connected with the upper cover plate can be damaged along with the damage of the upper cover plate;
the two layers of water stops also have damage and leakage risks, and the water stops are difficult to avoid being damaged in the construction process due to secondary construction on the upper cover plate; in addition, because the seam is arranged too much, the hidden trouble of leakage exists;
for the lower hanging type metal drainage ditch, the problems of drainage pipe truncation or discontinuity and the like easily occur.
Therefore, a leakage structure for solving the leakage problem of the expansion joint of the upper cover plate of the subway is urgently needed, the weather resistance is improved, the water is drained quickly, and the later maintenance is facilitated.
Disclosure of Invention
The invention aims to provide an anti-leakage structure of an expansion joint of a TOD upper cover plate, aiming at the defects in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an antiseep structure of TOD upper cover plate expansion joint, includes:
first structural slab, first structural slab set up in one side at the expansion joint, first structural slab is "U" shape, first structural slab includes:
a first transverse plate;
a second end of the first vertical plate is connected with a first end of the first transverse plate;
a second end of the second vertical plate is connected with a second end of the first transverse plate, and the height of the second vertical plate is smaller than that of the first vertical plate;
the second structural slab, the second structural slab set up in the opposite side at expansion joint, the second structural slab with first structural slab forms composite structure board, the second structural slab is "Z" shape, the second structural slab includes:
a first end of the first transverse plate is positioned at the upper part of the first end of the first vertical plate;
a first end of the third vertical plate is connected with a second end of the second transverse plate;
a second end of the fourth vertical plate is connected with the first end of the second transverse plate, and the upper surface of the first end of the fourth vertical plate and the upper surface of the first end of the first vertical plate are in the same horizontal plane;
the buffering water stopping unit is filled in a buffering space between the second transverse plate and the second vertical plate;
at least one drainage unit, which is arranged at the bottom of the first structural plate and penetrates through the first transverse plate;
the water-retaining plate is at least connected with the fourth vertical plate and the second vertical plate to cover the buffer space between the second transverse plate and the second vertical plate.
In one embodiment, the method further comprises:
a waterproof layer covering an outer surface of the composite structural panel.
In one embodiment, the water-repellent plate includes:
the first water-avoiding sub-plate is arranged at the upper part of the first end of the fourth vertical plate;
the water daughter board is kept away to the second, the second keep away the first end of water daughter board with the first end of keeping away the water daughter board is connected, the second keep away the water daughter board set up in being close to of secondary riser one side of primary riser, and the closing cap the second diaphragm with buffer space between the secondary riser.
In one embodiment, the second water avoiding plate is inclined to the second vertical plate.
In one embodiment, the water-repellent plate further includes:
the first end of the third water-avoiding daughter board is connected with the second end of the second water-avoiding daughter board, and the third water-avoiding daughter board inclines to the second vertical plate.
In one embodiment, the method further comprises:
the apron, the apron set up in the upper portion of first structural slab, the terminal surface of the first end of apron at least with keeping away from of first riser the side of second riser is in same perpendicular, the terminal surface of the second end of apron at least with being close to of fourth riser the side of third riser is in same perpendicular.
In one embodiment, the longitudinal section of the cover plate is concave.
In one embodiment, the method further comprises:
and the access hole is formed in one side of the first vertical plate, which is far away from the second vertical plate, and corresponds to the drainage unit.
In one embodiment, the cross section of the buffering water stopping unit is annular.
In one embodiment, the horizontal distance between the first vertical plate and the second vertical plate is at least 200mm, and is greater than or equal to the width of the expansion joint;
the second cross-piece has a thickness of at least 200 mm.
By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:
according to the anti-leakage structure of the expansion joint of the TOD upper cover plate, the composite structure plate formed by the U-shaped first structure plate and the Z-shaped second structure plate is utilized to form the liquid dredging channel, so that the problems that liquid leaks to the expansion joint, material failure and the like are not easy to occur are solved; compared with the traditional plugging type anti-leakage method, the anti-leakage effect of the composite structure plate is more durable, the situation that liquid permeates into the space below the upper cover plate and the like due to failure of the anti-leakage material is not easy to occur, the replacement frequency of the anti-leakage material is reduced, the later maintenance difficulty is greatly reduced, and the maintenance cost is reduced.
Drawings
Fig. 1 shows an expansion joint structure in the prior art.
Fig. 2 is a schematic view of the leakage prevention structure of the present invention (without the waterproof layer and the waterproof sheet).
FIG. 3 is a schematic view of the leak prevention structure of the present invention (without a drainage cell and service port)
Fig. 4 is a schematic view in longitudinal section of the leak prevention structure of the present invention.
Fig. 5 is a schematic view of a cross-section of a leak prevention structure of the present invention.
Fig. 6 is a schematic view in longitudinal section of a first structural panel of the present invention.
Figure 7 is a schematic illustration of a longitudinal section of a second structural panel of the present invention.
Fig. 8 is a schematic view of the buffering water stop unit of the present invention.
Fig. 9 is an enlarged partial schematic view of a fourth riser of the present invention.
FIG. 10 is a partially enlarged view of the second cross plate of the present invention.
Fig. 11 is an enlarged partial schematic view of a second riser of the present invention.
Fig. 12 is an enlarged partial schematic view of a second riser of the present invention.
Fig. 13 is a schematic view of a longitudinal section of a first embodiment of the flashing of the present invention.
Figure 14 is a schematic view in longitudinal section of a second embodiment of the flashing of the present invention.
Fig. 15 is a schematic view in longitudinal section of a third embodiment of the flashing of the present invention.
Wherein the reference numerals are: the water-proof structure comprises an upper cover plate 100, an expansion joint 200, a first structural plate 300, a second structural plate 400, a buffering water-stopping unit 500, a water drainage unit 600, a water-proof layer 700, a water-proof plate 800, a cover plate 900, an access hole 1000, a soil covering layer 1100, a ground surface layer 1200 and a cushion layer 1300;
a first transverse plate 301, a first vertical plate 302 and a second vertical plate 303;
a second transverse plate 401, a third vertical plate 402 and a fourth vertical plate 403;
a first water-avoiding sub-plate 801, a second water-avoiding sub-plate 802, and a third water-avoiding sub-plate 803.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
An exemplary embodiment of the present invention, as shown in fig. 2 to 4, is an anti-leakage structure for an expansion joint of a TOD upper cover plate, including a first structural plate 300, a second structural plate 400, a buffering and water-stopping unit 500, at least one water drainage unit 600 and a water-stopping plate 800, wherein the first structural plate 300 and the second structural plate 400 are respectively fixedly connected to the upper cover plate 100 and located at two sides of the expansion joint 200, the buffering and water-stopping unit 500 is disposed at a connection position of the first structural plate 300 and the second structural plate 400, the at least one water drainage unit 600 is disposed inside the first structural plate 300, and the water-stopping plate 800 is disposed at a connection position of the first structural plate 300 and the second structural plate 400.
As shown in fig. 6, the first structural panel 300 includes a first cross panel 301, a first riser 302, and a second riser 303. The first end of the first horizontal plate 301 is fixedly connected with the second end of the first vertical plate 302, the second end of the first horizontal plate 301 is fixedly connected with the second end of the second vertical plate 303, that is, the first horizontal plate 301, the first vertical plate 302 and the second vertical plate 303 form a "U" -shaped structure, and the connection part of the first horizontal plate 301 and the first vertical plate 302 is fixedly connected with the upper cover plate 100.
Wherein, the height that highly is greater than the second riser 303 of first riser 302, and the horizontal distance between first riser 302 and the second riser 303 is 200mm at least, and more than or equal to expansion joint 200's width, forms the drainage cavity that dredges that has certain volume for under extreme condition, hold a certain amount of liquid (like the rainwater), avoid the liquid level in the drainage cavity to improve fast.
Among them, the first structural plate 300 has a thickness of 150mm to 300mm, preferably 195mm to 215mm, and more preferably 200 mm.
Generally, the first structural panel 300 is a one-piece structural panel.
As shown in fig. 7, the second structural panel 400 includes a second cross panel 401, a third riser 402, and a fourth riser 403. The first end of the second horizontal plate 401 is fixedly connected with the second end of the fourth vertical plate 403, the second end of the second horizontal plate 401 is fixedly connected with the first end of the third vertical plate 402, that is, the second horizontal plate 401, the third vertical plate 402 and the fourth vertical plate 403 are in a "Z" -shaped structure, and the second end of the third vertical plate 402 is fixedly connected with the upper cover plate 100.
The thickness (namely, the vertical distance on the longitudinal section) of the second transverse plate 401 needs to meet the structural design requirement, and the second transverse plate has certain load compression resistance and can meet the driving requirements of a fire truck and a construction vehicle. Generally, the thickness of the second horizontal plate 401 is at least 200mm to 350mm, and the preferred thickness is 300 mm.
Similarly, the width of fourth riser 403 (i.e., the horizontal distance in the longitudinal section) also needs to meet the structural design requirements, and has a certain load-bearing and pressure-resisting capability. Typically, fourth riser 403 has a thickness (width) of at least 200 mm.
Generally, the second structural panel 400 is a one-piece structural panel
As shown in fig. 2 and 4, the first end of the second horizontal plate 401 of the second structural plate 400 is located above the second vertical plate 303 of the first structural plate 300, the end surface of the first end of the second horizontal plate 401 and the end surface of the second vertical plate 303 close to the first vertical plate 302 are located on the same vertical plane, the end surface of the fourth vertical plate 403 close to the first vertical plate 302 and the end surface of the second vertical plate 303 close to the first vertical plate 302 are located on the same vertical plane, and the end surface of the first end of the fourth vertical plate 403 and the end surface of the first end of the first vertical plate 302 are located on the same horizontal plane, so that the first structural plate 300 and the second structural plate 400 form a composite structural plate, and the expansion joint 200 is protected from leakage.
The buffering water stop unit 500 is filled in the buffering space between the second horizontal plate 401 and the second vertical plate 303, and is used for preventing liquid from entering the expansion joint 200 from the buffering space.
Wherein the height of the buffer space is 40mm to 60mm, and the preferable height is 45mm to 55 mm.
In general, the composite structural panel formed by the first structural panel 300 and the second structural panel 400 has a special structure, so that liquid can only enter the drainage cavity between the first riser 302 and the second riser 303. In extreme cases, liquid rapidly accumulates in the drainage cavity, the liquid level rises continuously, and there is less possibility that the liquid level is higher than the upper end surface of the second riser 303. Due to the existence of the buffering water stop unit 500, liquid cannot enter the expansion joint 200 through the buffering space, and the expansion joint 200 is prevented from being permeated by the liquid.
As shown in fig. 8, in this embodiment, the buffering water-stop unit 500 is a ring-shaped hollow structure, such as an O-shaped hollow rubber strip, having a certain buffering deformation capability.
The axial direction of the buffering and water stopping unit 500 may be arranged along the length direction of the second vertical plate 303, or may be arranged along the width direction of the second vertical plate 303. Specifically, in the assembly process, each buffering water stopping unit 500 is flattened and then is plugged between the second transverse plate 401 and the second vertical plate 303, and then under the action of elastic force, the buffering water stopping units 500 are tightly attached to the lower surface of the second transverse plate 401 and the upper surface of the second vertical plate 303 to play a role in stopping liquid; even in an extreme case where the liquid level inside the drainage chamber is higher than the upper end surface of the first end of the second riser 303, the liquid is prevented from entering the buffer space.
The drain unit 600 is disposed at the bottom of the inside of the first structural plate 300 and penetrates the first cross plate 301. The drainage unit 600 communicates with the drainage facility under the upper cover plate 100, so that the liquid introduced into the first structural plate 300 enters the drainage facility through the drainage unit 600, and the liquid is prevented from accumulating in the first structural plate 300.
Wherein, drainage unit 600 includes drain bucket and drain pipe, and the drain bucket sets up in the inside of first diaphragm 301, perhaps sets up in the top of first diaphragm 301, and the both ends of drain pipe are connected with drain pipe, drainage facility respectively.
In addition, a plurality of drainage units 600 are arranged in the first structural plate 300 at a certain distance for increasing the drainage rate, reducing the retention time of liquid in the drainage cavity and avoiding the accumulation of liquid in the drainage cavity.
Further, in order to improve the waterproof effect, as shown in fig. 3 and 4, the anti-leakage structure further includes a waterproof layer 700, and the waterproof layer 700 covers the upper surface of the upper cover plate 100 and the outer surface of the composite structure plate.
Specifically, the waterproof layer 700 covers the upper surface of the first transverse plate 301, the upper surface of the first riser 302, the side surface of the first riser 302 away from the second riser 303, the side surface of the first riser 302 close to the second riser 303, the upper surface of the second riser 303, the side surface of the second riser 303 close to the first riser 302, the upper surface of the second transverse plate 401, the side surface of the third riser 402 away from the fourth riser 403, the upper surface of the fourth riser 403, the side surface of the fourth riser 403 close to the third riser 402, and the side surface of the fourth riser 403 away from the third riser 402.
The thickness of the waterproof layer 700 is 1mm to 5mm, and preferably 2mm to 4 mm. Typically, the waterproof layer 700 is 4 mm.
By means of the waterproof layer 700, the probability that liquid directly contacts the first structural plate 300 and the second structural plate 400 is prevented, and the liquid is further prevented from penetrating into the expansion joint 200.
As shown in fig. 9 to 12, the waterproof layer 700 and the waterproof plate 800 are disposed as follows:
as shown in fig. 9, on the end surface of the first end of the third vertical plate 403, a water-repellent plate 800, a waterproof layer 700 and the third vertical plate 403 are arranged from top to bottom;
as shown in fig. 10, the end surface of the first end of the second horizontal plate 401 is sequentially provided with the second horizontal plate 401, the waterproof layer 700 and the water-avoiding plate 800 from left to right;
as shown in fig. 11, the waterproof layer 700 and the second vertical plate 303 are sequentially arranged on the end surface of the first end of the second vertical plate 303 from top to bottom, and the second vertical plate 303, the waterproof layer 700 and the water-avoiding plate 800 are sequentially arranged from left to right;
as shown in fig. 12, on the side surface of the second riser 303 close to the first riser 302, there are a second riser 303, a waterproof layer 700 and a waterproof layer 800 in the order from left to right.
As shown in fig. 13, the water-repellent plate 800 includes a first water-repellent plate 801 and a second water-repellent plate 802, the first water-repellent plate 801 is disposed on the upper portion (i.e., the top portion) of the first end of the second vertical plate 303, the first end of the second water-repellent plate 802 is fixedly connected to the first end of the first water-repellent plate 801, and the second water-repellent plate 802 is disposed on the side of the second vertical plate 303 close to the first vertical plate 301. In addition, the bottom surface of the second end of the second water-repellent plate 802 and the lower surface of the buffer space are at least located at the same horizontal plane, or the bottom surface of the second end of the second water-repellent plate 802 is located below the lower surface of the buffer space.
When the liquid flows downwards from above the first structural plate 300, the liquid flows downwards along the water-avoiding plate 800, and the liquid is prevented from entering the buffer space when the liquid flows downwards from the upper part of the first end of the second vertical plate 303.
In the first embodiment of the water-repellent plate 800, the included angle α between the first water-repellent plate 801 and the second water-repellent plate 802 is a right angle, that is, the first water-repellent plate 801 is attached to the end surface of the first end of the fourth vertical plate 403, and the second water-repellent plate 802 is sequentially attached to the end surface of the fourth vertical plate 403 on the side close to the first vertical plate 302, the end surface of the first end of the second horizontal plate 401, and the end surface of the second vertical plate 303 on the side close to the first vertical plate 302.
In the second embodiment of the water-repellent plate 800, as shown in fig. 14, the included angle α between the first water-repellent plate 801 and the second water-repellent plate 802 is an acute angle, for example, 5 ° to 25 °. Specifically, first water-repellent plate 801 is attached to the end face of the first end of fourth riser 403, and second water-repellent plate 802 is disposed obliquely downward, that is, second water-repellent plate 802 bends toward second riser 303 and contacts or is attached to second riser 303.
In a third embodiment of the water-stop sheet 800, as shown in fig. 15, the water-stop sheet 800 further includes a third water-stop sheet 803, and a first end of the third water-stop sheet 803 is fixedly connected to a second end of the second water-stop sheet 802. The included angle β between the second water-repellent plate 802 and the third water-repellent plate 803 is an obtuse angle, such as 105 ° to 125 °. Specifically, the third water-repellent plate 803 is disposed obliquely downward, that is, the third water-repellent plate 803 is bent toward the second vertical plate 303 and contacts or adheres to the second vertical plate 303.
In the second and third embodiments of the water-repellent plate 800, the bent second and third water- repellent plates 802 and 803 are used to attach the water-repellent plate 800 to the second vertical plate 303 in a manner of abutting against the water-repellent plate, so as to prevent the liquid from flowing from top to bottom to the buffer space and from permeating into the buffer space from bottom to top, thereby greatly improving the anti-seepage effect.
In a heavy rain day, if the amount of instantaneous rainfall is suddenly increased, the accumulated water in the drainage cavity of the first structural plate 300 cannot be drained immediately, and the water-repellent plate 800 can be used to prevent the liquid from splashing into the buffer space between the second transverse plate 401 and the second vertical plate 303; at the same time, water-stop plate 800 also prevents liquid from flowing down from the upper end of fourth riser 403 to the buffer space.
To reduce liquid from entering the drainage cavity of the first structural panel 300 directly, the leakage prevention structure further comprises a cover panel 900.
The cover plate 900 is disposed above the first structural plate 300, and functions to allow liquid to firstly permeate into the soil cover 1100 on both sides of the first structural plate 300 and the second structural plate 400, thereby reducing the volume of liquid permeating into the drainage cavity.
Specifically, the end surface of the first end of the cover plate 900 is at least on the same vertical plane as the end surface of the first riser 302 on the side away from the second riser 303, and the end surface of the second end of the cover plate 900 is at least on the same vertical plane as the end surface of the fourth riser 403 on the side close to the third riser 402.
The longitudinal section of the cover plate 900 is "concave". Specifically, the cover plate 900 includes two vertical plates and a horizontal plate, wherein the horizontal plate may have a longitudinal section of any one of a rectangular shape, an arc shape, and an angular shape.
The cover plate 900 is a metal cover plate, and the thickness and the shape of the cover plate can be customized according to the use requirement.
The thickness of the cover plate 900 is 2mm to 5mm, and the preferable thickness is 2 mm.
In the recesses of the cover plate 900, the same facing material as the adjacent spaces, such as stone, tile, concrete, asphalt, etc., can be filled, thereby ensuring a consistent look and feel with the surrounding environment.
Further, in order to facilitate the maintenance of the drainage unit 600, the anti-leakage structure further includes a maintenance opening 1000.
The service hole 1000 is provided at one side of the drainage unit 600. Specifically, in the drainage cell 600 position, the first riser 302 protrudes in a direction away from the second riser 303, that is, in the drainage cell 600 position, the first riser 302 is in a "convex" shape in a top view.
Wherein, for the cross section of the service opening 1000, the specification (length and width) may be 400mm for accommodating the cleaning robot; it may also be 600mm to accommodate a cleaner.
Typically, the access opening 1000 is 600mm by 600 mm.
Thus, for the first structural panel 300, where the drainage cell 600 is not provided, the horizontal distance between the first riser 302 and the second riser 303 is at least 200 mm; at the position where the drainage unit 600 is disposed, that is, the position of the service opening 1000, the horizontal distance between the first riser 302 and the second riser 303 is at least 400mm for accommodating a cleaning robot (e.g., 400mm to 500mm) or a cleaning worker (at least 600 mm).
The specific application method of this example is as follows: as shown in fig. 4, in the construction process, the first structural plate 300 and the second structural plate 400 are respectively and fixedly connected (may be integrally cast) with the upper cover plate 100, so that the first structural plate 300 and the second structural plate 400 are respectively arranged at two sides of the expansion joint 200; assembling the first structural plate 300 with the second structural plate 400, i.e. the first end of the second horizontal plate 401 is located above the first end of the second vertical plate 303, to form a composite structural plate; a buffering water stopping unit 500 is placed at the lower part of the first end of the second transverse plate 401 to fill a buffering space between the second transverse plate 401 and the second vertical plate 303; installing the drainage unit 600 inside the first structural plate 300; a waterproof layer 700 is laid on the upper surface of the upper cover plate 100 and the outer surface of the composite structure plate; arranging the water-avoiding plate 800 on the second vertical plate 303 to seal the buffer space; placing a cover plate 900 on the upper portion of the first structural plate 300; the construction process can be completed by filling the soil covering layer 1100 in the gaps between the ground surface layer 1200 (or the cushion layer 1300 located below the ground surface layer 1200) and the upper cover plate 100, the first structural plate 300, and the second structural plate 200.
In the actual use process, the composite structure plate formed by the first structure plate 300 and the second structure plate 400 is used for constructing a drainage cavity on the basis of protecting the expansion joint 200, so that the probability of liquid (rainwater) penetrating into the expansion joint 200 is greatly reduced, the liquid is drained from the upper part of the upper cover plate 100 to the lower part of the upper cover plate 100 in a drainage mode, and various problems caused by the fact that the traditional anti-seepage structure can only prevent seepage in a plugging mode are solved.
In addition, compared with the traditional anti-leakage structure, the anti-leakage structure is easy to overhaul and maintain, and the water-repellent plate 800 can be replaced after the cover plate 900 is removed; after the maintainer enters the access hole 1000, the drainage unit 600 of the drainage cavity can be cleaned, or the water-stop board 800 is removed, and then the buffering water-stop unit 500 is replaced.
For practical use cases, the following are respectively:
in rainy days, under the action of the cover plate 900, rainwater permeates the soil covering layer 1100 above the expansion joint 200 downwards to the two sides of the cover plate 900, and a small amount of rainwater can permeate the lower part of the cover plate 900; under the action of the water-repellent plate 800, rainwater enters the drainage cavity of the first structural plate 300 and is drained to the drainage facility below the upper cover plate 100 through the drainage unit 600;
in some extreme cases, more rainwater permeates into the drainage cavity of the first structural plate 300, the rainwater splashes or drips in the drainage cavity, and the splashed rainwater is prevented from entering between the second vertical plate 303 and the second transverse plate 401 by the water-repellent plate 800;
in some extreme cases, the rainwater permeating into the drainage cavity of the first structural plate 300 is too much, and the liquid level in the drainage cavity is higher than the upper end surface of the first end of the second vertical plate 303, at this time, the water-avoiding plate 800 blocks the rainwater from entering the buffer space, and the buffer water-stopping unit 500 blocks the rainwater from entering the buffer space.
For the maintenance and repair situation:
under the condition that the building material expands due to heating, extrusion deformation occurs, and the degree of the extrusion deformation can be judged according to the extrusion deformation condition of the cover plate 900 and the ground surface layer 1200; under the condition of overlarge extrusion deformation, the cover plate 900 is arched, and the water-repellent plate 800 needs to be overhauled or replaced at the moment; when the water-avoiding plate 800 is replaced, whether the buffering water-stopping unit 500 is separated from the drainage cavity or not needs to be checked; if the degree of the extrusion deformation exceeds 1/2 of the calculated value of the width of the expansion joint or exceeds the perimeter of the buffering water stopping unit 500, the buffering water stopping unit 500 may move to the drainage cavity and the buffering water stopping unit 500 is plugged back;
under the condition that the building material is cooled and shrunk, tensile deformation occurs, and the degree of the tensile deformation can be judged through a gap between the cover plate 900 and the ground surface layer 1200; when the stretching deformation is too large, and the width of the gap between the cover plate 900 and the ground surface layer 1200 is at least twice larger than the width of the reserved gap, the water-repellent plate 800 needs to be repaired or replaced at this time; when the water-stop plate 800 is replaced, it is necessary to check whether the buffering water-stop unit 500 is separated from the expansion joint 200; if extrusion deformation degree surpasss 1/2 of expansion joint width calculated value or surpasss buffering stagnant water unit 500's week length, no matter detect buffering stagnant water unit 500 and exist, all should fill in a new buffering stagnant water unit 500 between second riser 303 and the second diaphragm to for prevent that the partial not closely knit condition of shutoff from taking place.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (3)
1. The utility model provides a antiseep structure of TOD upper cover plate expansion joint which characterized in that includes:
first structural slab, first structural slab sets up in one side at the expansion joint, first structural slab formula structural slab as an organic whole, first structural slab pours with upper cover plate an organic whole, first structural slab is "U" shape, first structural slab includes:
a first transverse plate;
the second end of the first vertical plate is connected with the first end of the first transverse plate and is respectively contacted with the soil covering layer and the cushion layer;
a second end of the second vertical plate is connected with a second end of the first transverse plate, and the height of the second vertical plate is smaller than that of the first vertical plate;
the second structural slab, the second structural slab set up in the opposite side at expansion joint, second structural slab formula structural slab as an organic whole, second structural slab pours with upper cover plate an organic whole, the second structural slab with first structural slab forms composite structure board, the second structural slab is "Z" shape, the second structural slab includes:
the first end of the second transverse plate is positioned at the upper part of the first end of the second vertical plate, and the end surface of the first end of the second transverse plate and the end surface of the second vertical plate close to the first vertical plate are positioned on the same vertical plane;
a first end of the third vertical plate is connected with a second end of the second transverse plate;
a second end of the fourth vertical plate is connected with the first end of the second transverse plate, and the upper surface of the first end of the fourth vertical plate and the upper surface of the first end of the first vertical plate are positioned on the same horizontal plane and are respectively contacted with the soil covering layer and the cushion layer;
the buffering water stopping unit is filled in a buffering space between the second transverse plate and the second vertical plate, the height of the buffering space is 40-60 mm, and the buffering water stopping unit is of an annular hollow structure;
at least one drainage unit, which is arranged at the bottom of the first structural plate and penetrates through the first transverse plate;
a waterproof layer covering an upper surface of the first cross plate, an upper surface of the first riser, a side surface of the first riser away from the second riser, a side surface of the first riser near the second riser, an upper surface of the second riser, a side surface of the second riser near the first riser, an upper surface of the second cross plate, a side surface of the third riser away from the fourth riser, an upper surface of the fourth riser, a side surface of the fourth riser near the third riser, and a side surface of the fourth riser away from the third riser;
the water-retaining plate, the water-retaining plate at least with fourth riser, second riser are connected to the closing cap the second diaphragm with buffer space between the second riser, the water-retaining plate includes:
the first water-avoiding sub-plate is arranged at the upper part of the first end of the fourth vertical plate;
the first end of the second water-avoiding daughter board is connected with the first end of the first water-avoiding daughter board, the second water-avoiding daughter board is arranged on one side, close to the first vertical plate, of the second vertical plate and covers a buffer space between the second transverse plate and the second vertical plate, and the second water-avoiding daughter board inclines towards the second vertical plate; or
The water-repellent plate includes:
the first water-avoiding sub-plate is arranged at the upper part of the first end of the fourth vertical plate;
the first end of the second water-avoiding sub-plate is connected with the first end of the first water-avoiding sub-plate, the second water-avoiding sub-plate is arranged on one side, close to the first vertical plate, of the second vertical plate, and covers a buffer space between the second horizontal plate and the second vertical plate;
a first end of the third water-avoiding sub-plate is connected with a second end of the second water-avoiding sub-plate, and the third water-avoiding sub-plate is inclined towards the second vertical plate;
the apron, the apron set up in the upper portion of first structural slab, the terminal surface of the first end of apron at least with keeping away from of first riser the side of second riser is in same perpendicular, the terminal surface of the second end of apron at least with being close to of fourth riser the side of third riser is in same perpendicular, the apron is metal covering plate, the longitudinal section of apron is "concave" shape.
2. The anti-seepage structure for expansion joints of TOD upper cover plate as claimed in claim 1, further comprising:
and the access hole is formed in one side of the first vertical plate, which is far away from the second vertical plate, and corresponds to the drainage unit.
3. The anti-leakage structure for expansion joint of TOD upper cover plate according to claim 1, wherein the horizontal distance between the first vertical plate and the second vertical plate is at least 200mm and is greater than or equal to the width of the expansion joint;
the second cross-piece has a thickness of at least 200 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010624414.7A CN111663667B (en) | 2020-07-01 | 2020-07-01 | Antiseep structure of TOD upper cover plate expansion joint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010624414.7A CN111663667B (en) | 2020-07-01 | 2020-07-01 | Antiseep structure of TOD upper cover plate expansion joint |
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| CN111663667B true CN111663667B (en) | 2021-06-18 |
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| DE2413340A1 (en) * | 1974-03-20 | 1975-10-30 | Juergen Jora | Bridging joint gap between building components - with waterproof adhesive layers joined by expansible filler layer |
| JP2006283307A (en) * | 2005-03-31 | 2006-10-19 | Lonseal Corp | Metal drain |
| CN108678303A (en) * | 2018-05-31 | 2018-10-19 | 中国冶集团有限公司 | The waterproof construction and construction method that anti-row combines at planted roof expansion joint |
| CN209509199U (en) * | 2018-12-20 | 2019-10-18 | 常州市市政工程设计研究院有限公司 | A kind of up concave type deformation joint of roof |
| CN209837338U (en) * | 2019-04-30 | 2019-12-24 | 重庆渝高科技产业(集团)股份有限公司 | Waterproof structure for expansion joint of earth-covered roof |
| CN210152084U (en) * | 2019-06-11 | 2020-03-17 | 佛山市顺德建筑设计院股份有限公司 | Deformation joint structure of roof slab for building |
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2020
- 2020-07-01 CN CN202010624414.7A patent/CN111663667B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2413340A1 (en) * | 1974-03-20 | 1975-10-30 | Juergen Jora | Bridging joint gap between building components - with waterproof adhesive layers joined by expansible filler layer |
| JP2006283307A (en) * | 2005-03-31 | 2006-10-19 | Lonseal Corp | Metal drain |
| CN108678303A (en) * | 2018-05-31 | 2018-10-19 | 中国冶集团有限公司 | The waterproof construction and construction method that anti-row combines at planted roof expansion joint |
| CN209509199U (en) * | 2018-12-20 | 2019-10-18 | 常州市市政工程设计研究院有限公司 | A kind of up concave type deformation joint of roof |
| CN209837338U (en) * | 2019-04-30 | 2019-12-24 | 重庆渝高科技产业(集团)股份有限公司 | Waterproof structure for expansion joint of earth-covered roof |
| CN210152084U (en) * | 2019-06-11 | 2020-03-17 | 佛山市顺德建筑设计院股份有限公司 | Deformation joint structure of roof slab for building |
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| CN111663667A (en) | 2020-09-15 |
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