CN113653242A

CN113653242A - Stepped deformation joint engagement structure for high-low roof

Info

Publication number: CN113653242A
Application number: CN202110775331.2A
Authority: CN
Inventors: 易芹; 温文浩; 黄子翀; 林旋沃; 覃嘉宝
Original assignee: Architectural Design and Research Institute of Guangdong Province
Current assignee: Architectural Design and Research Institute of Guangdong Province
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2021-11-16
Anticipated expiration: 2041-07-08
Also published as: CN113653242B

Abstract

The invention provides a high-low roof stepped deformation joint occlusal structure. By arranging staggered cantilevered reinforced concrete slab cover plates at the height and low position of the roof stepped deformation joint and overhanging the high and low-order anti-sills respectively, and A vertical plate is arranged on the surface of the deformation joint at the drop, the bottom of the vertical plate is connected with the top surface of the lower horizontal cover plate near the deformation joint at the drop, and the side is connected with the high-order reverse sill on the same side of the raised end of the lower horizontal cover plate, connecting the A continuous stepped deformation joint is converted into a continuous three-dimensional four-direction deformation joint, which solves the problem that the roof catchment on the higher roof structural plate crosses the lower horizontal cover plate and pours back into the deformation joint at the drop. Roof structural slabs, cover slabs, vertical slabs, anti-sills and side beams are all cast with reinforced concrete, so that the main structure, waterproof sealing, thermal insulation materials and other deformed joint structures can be continuously formed, simplifying construction formwork and reducing construction costs. Difficulty, shorten the construction period.

Description

Stepped deformation joint engagement structure for high-low roof

Technical Field

The invention relates to a general building structure for joints, in particular to a stepped deformation joint meshing structure for high and low roofs.

Background

The deformation joint is a gap with proper width which is artificially set for preventing the building from generating deformation under the action of external factors (temperature change, uneven settlement of a foundation and earthquake), and causing cracking and even damage.

In the architectural design, because outward appearance, functional requirement or the structural feature of building can lead to forming like the low roofing structure shown in fig. 1, and it includes two boundary beams 1, and two roofing structural slab 2 that have the difference in height each other fix respectively two the lateral surface of boundary beam 1 all sets up the anti-bank of notch cuttype 3 above two boundary beams 1, two the notch cuttype is anti-all to leave the gap between bank 3 and between two boundary beams 1, two the gap links to each other and forms a continuous notch cuttype movement joint 4.

In the prior art, regarding the deformation joint structure form adopted by the high-low roof structure as shown in fig. 1, reference may be made to pages 16 to 17 in the national building standard design drawing set 14J936 deformation joint building structure, and fig. 2 is a perspective view of a roof deformation joint, where the reference symbol (c) is the deformation joint structure form closest to fig. 1, and belongs to intersection of a roof corner joint and an outer wall foot joint. For the deformation joint marked by the third symbol, the deformation joint structure suggested by the drawing set is shown in fig. 3, the low deformation joint 42 is covered by a flat joint cover plate 20, the drop deformation joint 43 of the outer wall vertical surface is covered by a special end cover plate 30, the interface between the flat joint cover plate 20 and the special end cover plate 30 is sealed and connected by a gap filling glue 40, and the deformation joint at the top surface of the outer wall can also be the flat joint cover plate 20.

If the deformation joint structure form in fig. 3 is applied to the high-low roofing structure in fig. 1, the following technical defects exist:

(1) the deformation joint structure is segmented and discontinuous, and the construction between the cover joint plate and the building main body, the waterproof plugging inside the deformation joint and the construction of the coiled material are difficult to continuously and uniformly treat, so that the construction difficulty and the construction period are increased;

(2) the high-low roof structure shown in fig. 1 is formed, because the reinforced concrete roof structural slab on the left side is lower than the reinforced concrete roof structural slab on the right side, if the structural form shown in fig. 3 is adopted, rainwater can flow back into the reinforced concrete roof structural slab on the right side and is difficult to drain in the condition of extremely heavy rain;

(3) because the joints among the sealing rubber and the flat joint cover plate are filled with the sealing rubber, if the sealing rubber, the flat joint cover plate and the special end cover plate are aged and pulled apart after being exposed to the environment for a long time, rainwater is directly poured into the deformation joint to cause indoor building, so that water seepage and water leakage are caused.

Disclosure of Invention

The invention aims to provide a deformation joint structure of a high-low roof structure, which has longer effective anti-seepage performance, has an anti-backflow function and can greatly reduce the construction difficulty to shorten the construction period.

In order to achieve the above object, the present invention adopts the following technical solutions.

The utility model provides a height roofing notch cuttype movement joint interlock structure, height roofing structure includes two boundary beams, and two roofing structural slab that have the difference in height each other are fixed respectively two the lateral surface of boundary beam, the top surface of two boundary beams all set up the anti-bank of notch cuttype, two the notch cuttype is anti-all left the gap between the bank and between the two boundary beams, two the gap links to each other and forms a continuous notch cuttype movement joint, the movement joint at the lower step level of the anti-bank of notch cuttype is low department movement joint, and the movement joint at higher step level is eminence movement joint, eminence movement joint with movement joint between the low department movement joint is the movement joint of drop department, and the anti-bank of the lower step level of notch cuttype is the anti-bank of low order, and the anti-bank of the higher step level of notch cuttype is the anti-bank of high order, its characterized in that, the movement joint structure includes:

the lower horizontal cover plate is used for covering the lower deformation joint, one side end of the lower horizontal cover plate is connected with a lower-order reverse ridge, and the other side end of the lower horizontal cover plate is hollowed out and is provided with a first gap with the other lower-order reverse ridge;

the high-level horizontal cover plate covers the deformation joint at the over-high position, one side end of the high-level horizontal cover plate is connected with a high-level reverse ridge, and the other side end of the high-level horizontal cover plate is raised to be empty and is provided with a second gap with the other high-level reverse ridge;

the vertical plate is located on the top surface of the low horizontal cover plate, the top end of the vertical plate and the high horizontal cover plate are provided with third gaps, one side end of the vertical plate is connected with one stepped reverse ridge, the other side end of the vertical plate and the other stepped reverse ridge are provided with fourth gaps, and the vertical plate is used for covering deformation joints at the drop height;

the first, second, third and fourth gaps jointly form a continuous three-dimensional four-way deformation joint, and a waterproof sealing structure is arranged in the three-dimensional four-way deformation joint; the hollowed side end of the lower horizontal cover plate extends to the lower roof structure plate.

The technical scheme can be further improved as follows.

One of high low roofing structure the boundary beam with one the ridge is turned over to the notch cuttype, lower roofing structure board and eminence horizontal cover plate pour for reinforced concrete integration and form, another boundary beam of high low roofing structure is turned over the ridge with another notch cuttype, higher roofing structure board, low level apron and riser and are pour for reinforced concrete integration and form.

The waterproof sealing structure comprises a U-shaped waterproof coiled material with an outward notch, and a filler filled in the notch of the U-shaped waterproof coiled material.

Compared with the prior art, the technical scheme has the following beneficial effects:

(1) through high at roofing notch cuttype movement joint, the low department sets up the wrong reinforced concrete slab apron of encorbelmenting and goes out respectively and choose in the height, the anti-bank of low order, and set up the riser on drop department movement joint surface, this riser bottom links to each other with the horizontal apron top surface of low department that is close to drop department movement joint, the side links to each other with the anti-bank of high order that the horizontal apron of low department played the end homonymy of encorbelmenting, convert a continuous notch cuttype movement joint into continuous three-dimensional four-way movement joint, roofing structural slab, the apron, the riser, anti-bank and boundary beam all adopt reinforced concrete integration to pour, make major structure, water-proof seal, deformation joint structures such as insulation material can be continuous integrated into one piece, simplify the construction formwork, the construction degree of difficulty has been reduced, the time limit for a project has been shortened.

(2) Because the high-position horizontal cover plate is cantilevered out of the vertical plate and the high-order reverse ridge, and the low-position horizontal cover plate is cantilevered out of the low-order reverse ridge, external rainwater cannot directly enter the deformation joint, so that roof catchment on the higher roof structure plate cannot flow backwards into the low-position shape joint when crossing the low-position horizontal cover plate;

(3) come to block the water through the riser, and because riser and low horizontal cover plate integrated into one piece, than using movement joint metal installation, there is better exterior finish heat insulating ability, the waterproof performance has also been promoted simultaneously, avoid in the seam insulation material destroy the material because of taking place to soak, the riser top is then one section movement joint of level orientation, its direction is adjusted to keeping away from most unfavorable waterproof point, solve the most unfavorable problem of pouring backward of low movement joint, can effectively avoid the infiltration of drop department movement joint simultaneously, leak.

Drawings

In order to more clearly explain the technical solution of the present invention, the drawings used in the embodiments will be briefly described below.

FIG. 1 is an axonometric view of the stepped deformation joint structure of the high and low roofs according to the invention;

FIG. 2 is a perspective view of a roof deformation joint on page 16 of the national building Standard design drawing, 14J936 deformation joint building construction;

FIG. 3 is a schematic view of the construction of a deformation joint formed for a high and low roofing structure of the type shown in FIG. 1 on page 17 of the national building Standard design drawing set 14J936 deformation Joint building construction;

FIG. 4 is an isometric view in one direction of the stepped deformation joint engaging structure for high and low roofs according to the present invention, without the installation of a U-shaped waterproof roll, with the addition of a deformation joint cover plate and a vertical plate;

FIG. 5 is an isometric view of the stepped deformation joint engaging structure for high and low roofs according to the invention in another direction when the U-shaped waterproof roll is not installed and a deformation joint cover plate and a vertical plate are added;

FIG. 6 is an isometric view of the stepped deformation joint engaging structure of the high and low roofs of the invention in one direction when a U-shaped waterproof roll is installed;

FIG. 7 is an isometric view of the stepped deformation joint of the high and low roofs of the invention engaged in another direction when a U-shaped waterproof roll is installed;

FIG. 8 is a front elevation deformation joint cutaway view of the deformation joint configuration of the present invention;

FIG. 9 is a front cutaway view of a lower deformation joint of the deformation joint configuration of the present invention;

FIG. 10 is a top cutaway view of a deformation joint at a drop height in the deformation joint configuration of the present invention.

To facilitate an understanding of the invention, the corresponding numbering of the components and/or features found in the drawings is provided as follows:

1. a boundary beam; 2. a roof structure panel; 3. a step-shaped reverse bank; 31. a low-order reverse bank; 32. high-order reverse bank; 4. a step-shaped deformation joint; 42. a low deformation joint; 41. a high-altitude deformation joint; 43. deformation joints at the drop positions; 51. a lower horizontal cover plate; 52. a high horizontal cover plate; 6. a vertical plate; 7. three-dimensional four-way deformation joints; 71. a first slit; 72. a second slit; 73. a third gap; 74. a fourth gap; 8. a U-shaped waterproof roll; 9. an L-shaped steel plate; 10. a polyethylene foam plastic rod; 11. waterproof ointment; 12. a fire retardant belt; 13. a thermal insulation material; 14. sealing paste; 20. flat-seamed cover plates; 30. a special end cover plate; 40. and (5) joint filling glue.

It should be understood that the drawings are not necessarily drawn to scale. It is obvious that the above-mentioned figures are only some embodiments of the invention, and that for a person skilled in the art, without inventive effort, further figures can be obtained with reference to these figures.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that if directional indications (such as … …, which is up, down, left, right, front, back, top, bottom, inner, outer, vertical, transverse, longitudinal, counterclockwise, clockwise, circumferential, radial, axial) are provided in the embodiments of the present invention, the directional indications are only used for explaining the relative position relationship, motion condition, etc. of the components at a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are changed accordingly.

As shown in fig. 4 to 7, the invention provides a stepped deformation joint engagement structure for high and low roofs.

This high low roofing notch cuttype movement joint structure includes two boundary beams 1, two roofing structural slab 2 that have the difference in height each other are fixed respectively at two boundary beams 1's lateral surface, the top surface of two boundary beams 1 all sets up the anti-bank 3 of notch cuttype, all leave the gap between the anti-bank 3 of two notch cuttype and between two boundary beams 1, two gaps link to each other and form a continuous notch cuttype movement joint 4, the movement joint at the lower ladder level of the anti-bank 3 of notch cuttype is low department movement joint 42, the movement joint at higher ladder level is eminence movement joint 41, the movement joint between eminence movement joint 41 and the low department movement joint 42 is the movement joint 43 of drop department, the anti-bank at the lower ladder level of the anti-bank 3 of notch cuttype is the anti-bank 31 of low order, the anti-bank of the higher ladder level of the anti-bank 3 of notch cuttype is high-order anti-bank 32.

The stepped deformation joint meshing structure for the high-low roof specifically comprises:

a lower horizontal cover plate 51 which covers the lower deformation joint 42, has one side end connected with one lower-order reverse threshold 31 and the other side end hollowed and is provided with a first gap 71 with the other lower-order reverse threshold 31;

a high horizontal cover plate 52 which covers the deformation joint 41 at the over-high position, has one side end connected with a high-order reverse ridge 32 and the other side end hollowed and is provided with a second gap 72 with the other high-order reverse ridge 32;

and the vertical plate 6 is positioned on the top surface of the lower horizontal cover plate 51, has a third gap 73 between the top end and the upper horizontal cover plate 52, has one side end connected with the stepped reverse threshold 3 and has the other side end and the other stepped reverse threshold 3 with a fourth gap 74, and is used for covering the deformation joint 43 at the drop height.

A boundary beam 1 of the high-low roof structure, a stepped reverse ridge 3, a lower roof structure plate 2 and a high-position horizontal cover plate 52 are integrally cast by reinforced concrete, and another boundary beam 1 of the high-low roof structure, another stepped reverse ridge 3, a higher roof structure plate 2, a lower horizontal cover plate 51 and a vertical plate 6 are integrally cast by reinforced concrete.

Come to block the water through riser 6, and because riser 6 and low department horizontal cover plate 51 integrated into one piece, compared with using movement joint metal installation, there is better exterior finish heat insulating ability, waterproof performance has also been promoted simultaneously, avoid in the seam insulation material 13 destroy the material because of taking place to soak, riser 6 top is then one section movement joint of level orientation, its direction is adjusted to keeping away from the most unfavorable waterproof point, solve the most unfavorable problem of pouring backward of low department movement joint 42, can effectively avoid the infiltration of drop department movement joint 43 to leak simultaneously.

The first gap 74, the second gap 71, the third gap 72 and the fourth gap 73 jointly form a continuous three-dimensional four-way deformation joint 7, and a waterproof sealing structure is arranged inside the three-dimensional four-way deformation joint 7; the free side ends of the lower horizontal decking 51 extend above the lower deck 2.

Through setting up riser 6 on drop department movement joint 43 surface, this riser 6 bottom links to each other with the side that low level apron 51 top surface is close to drop department movement joint 43, converts a continuous notch cuttype movement joint 4 into continuous three-dimensional four-way movement joint 7 for waterproof sealing structure can be continuous integrated into one piece, thereby makes the movement joint structure continuous and unified, the construction of being convenient for. Meanwhile, the lower horizontal cover plate 51 is cantilevered on the lower roof structure plate 2, so that rainwater cannot flow over the lower horizontal cover plate 51 and flow back to the higher roof structure plate 2.

As shown in figures 7 and 8, an L-shaped steel plate 9 is arranged at the inner turning part of the upper horizontal cover plate 52 and the lower horizontal cover plate 51 facing the deformation joint. The L-shaped steel plate 9 is used to provide structural support for the high horizontal cover plate 52 and the low horizontal cover plate 51, and also serves as a formwork during concrete casting.

As shown in fig. 5 to 9, the waterproof and sealing structure includes a U-shaped waterproof roll 8 with its notch facing outward, and a packing material packed in the notch of the U-shaped waterproof roll 8. As shown in fig. 7 to 8, the stuffing is sequentially a polyethylene foam plastic rod 10 and a waterproof ointment 11 from inside to outside, and a fire retardant belt 12, a heat insulating material 13 and a sealing ointment 14 are sequentially arranged at a deformation joint 43 at the drop height and a deformation joint 42 at the lower part from bottom to top. As shown in fig. 9, the sealing paste 14 and the heat insulating material 13 are provided in this order from the bottom to the top at the high deformation joint 41.

The present invention has been described in detail, and the principle and the embodiments of the present invention are explained in detail by using specific examples, and the descriptions of the above examples are only used to help understand the method of the present application and the core idea thereof, and the content of the present specification should not be construed as limiting the present invention.

Claims

1. A high-low roof stepped deformation joint occlusal structure, the high and low roof structure comprises two side beams (1), and two roof structure plates (2) with a height difference between each other are respectively fixed on the two side beams On the outer side of (1), the top surfaces of the beams (1) on both sides are provided with stepped reverse sills (3), and there are gaps between the two stepped reverse sills (3) and between the beams (1) on both sides, The two said slits are connected to form a continuous step-shaped deformation seam (4), the deformation seam at the lower step of the step-shaped anti-sill (3) is the lower deformation seam (42), and the deformation seam at the higher step is High deformation seam (41), the deformation seam between the high deformation seam (41) and the low deformation seam (42) is the drop deformation seam (43), and the stepped reverse sill (3) is lower The anti-sills at the steps are low-order anti-sills (31), and the anti-sills at the higher steps of the stepped anti-sills (3) are high-order anti-sills (32). It is characterized in that, the deformation joint structure includes:

Covering the lower deformation seam (42), one side end is connected to a low-order anti-sill (31), and the other side end is hollowed and a first gap (74) is left with another low-order anti-sill (31). The lower horizontal cover plate (51);

Covering the high deformation seam (41), one side end is connected with a high-order reverse sill (32), and the other side end is hollowed and a second gap (71) is left with another high-order reverse sill (32). The high level cover plate (52);

A step-type reverse sill (3) is located on the top surface of the lower horizontal cover plate (51), and a third gap (72) is left between the top end and the upper horizontal cover plate (52), and one side end is connected to a stepped reverse sill (3) And the other side end is a vertical plate (6) with a fourth gap (73) left with another stepped reverse sill (3) and used to cover the deformation seam (43) at the drop;

The first, second, third and fourth slits (74, 71, 72, 73) together form a continuous three-dimensional four-way deformation seam (7), and a waterproof seal is provided inside the three-dimensional four-way deformation seam (7). Structure; the hollow side end of the lower horizontal cover plate (51) extends to the lower roof structure plate (2).

2 . The stepped deformation joint structure for high and low roofs according to claim 1 , wherein one of the side beams ( 1 ) of the high and low roof structure and one of the stepped reverse sills ( 3 ), which are lower The roof structure plate (2) and the high-level horizontal cover plate (52) are integrally poured with reinforced concrete. , The higher roof structural plate (2), the lower horizontal cover plate (51) and the vertical plate (6) are integrally cast with reinforced concrete.

3. The stepped deformation joint occlusal structure for high and low roofs according to claim 1 or 2, characterized in that, the waterproof sealing structure comprises a U-shaped waterproof membrane (8) with a notch facing outward, and a U-shaped waterproof membrane (8) filled with The filler in the groove of the type waterproofing membrane (8).

4. The high-low roof stepped deformation joint occlusal structure according to claim 3 is characterized in that, the upper horizontal cover plate (52) and the lower horizontal cover plate (51) are provided with a L at the inner turning point facing the deformation joint Profiled steel plate (9).

5 . The stepped deformation joint occlusal structure for high and low roofs according to claim 3 , characterized in that, the stuffing is composed of polyethylene foam plastic rods ( 10 ) and waterproof ointment ( 11 ) from inside to outside. 6 .

6. The step-shaped deformation joint occlusal structure for high and low roofs according to claim 4 or 5, wherein the deformation joints (43) at the drop and the deformation joints (42) at the lower positions are sequentially arranged from bottom to top. ), insulation material (13) and sealing paste (14).

7. The occlusal structure of high and low stepped deformation joints according to claim 6, characterized in that, the high deformation joints (41) are sequentially provided with sealing paste (14) and thermal insulation materials (13) from outside to inside, and the lower part of the high deformation joints (41) is thermally insulated The end of the material (13) is provided with a firestop (12).