阅读说明：本技术 高低屋面阶梯型变形缝咬合构造 (Stepped deformation joint engagement structure for high-low roof ) 是由 易芹 温文浩 黄子翀 林旋沃 覃嘉宝 于 2021-07-08 设计创作，主要内容包括：本发明提供了一种高低屋面阶梯型变形缝咬合构造,通过在屋面阶梯型变形缝高、低处设置错向悬挑的钢筋混凝土板盖板并分别出挑于高、低阶反坎,且在落差处变形缝表面设置立板,该立板底部与靠近落差处变形缝的低处水平盖板顶面相连、侧边与低处水平盖板起挑端同侧的高阶反坎相连,将一条连续的阶梯型变形缝转换为连续的三维四向变形缝,解决了较高的屋面结构板上的屋面汇水越过低处水平盖板而倒灌至落差处变形缝的问题。屋面结构板、盖板、立板、反坎和边梁均采用钢筋混凝土一体化浇筑,使得主体结构、防水密封、保温材料等变形缝构造能连续一体地成型,简化施工支模,降低了施工难度,缩短了工期。(The invention provides a stepped deformation joint occlusion structure for high and low roofs, which is characterized in that reinforced concrete slab cover plates which are oppositely cantilevered are arranged at the high and low positions of a stepped deformation joint of a roof, and are respectively protruded from high and low-order reverse ridges, a vertical plate is arranged on the surface of the deformation joint at the drop position, the bottom of the vertical plate is connected with the top surface of a horizontal cover plate at the low position close to the drop position deformation joint, the side edge of the vertical plate is connected with a high-order reverse ridge at the same side as the rising end of the horizontal cover plate at the low position, a continuous stepped deformation joint is converted into a continuous three-dimensional four-way deformation joint, and the problem that roof catchment on a higher roof structural plate flows back to the drop position deformation joint after passing through the horizontal cover plate at the low position is solved. Roofing structural slab, apron, riser, anti-bank and boundary beam all adopt reinforced concrete integration to pour for deformation joint structures such as major structure, waterproof sealing, insulation material can be in succession integrated into one piece, simplify the construction formwork, have reduced the construction degree of difficulty, have shortened the time limit for a project.)

1. The utility model provides a height roofing notch cuttype movement joint interlock structure, height roofing structure includes two boundary beams (1), and two roofing structural slab (2) that have the difference in height each other are fixed respectively two the lateral surface of boundary beam (1), the top surface of two boundary beams (1) all set up the reverse bank of notch cuttype (3), two the gap all is left between the reverse bank of notch cuttype (3) and between two boundary beams (1), two the gap links to each other and forms a continuous notch cuttype movement joint (4), the movement joint at the lower ladder level of the reverse bank of notch cuttype (3) is low order movement joint (42), and the movement joint at the higher ladder level is eminence movement joint (41), eminence movement joint (41) with the movement joint between low ladder level movement joint (42) is drop movement joint (43), and the reverse bank of the lower ladder level of the reverse bank of notch cuttype (3) is low order reverse bank (31), anti bank at the higher ladder level of anti bank of notch cuttype (3) is the anti bank (32) of high-order, its characterized in that, the movement joint structure includes:

a low horizontal cover plate (51) which covers the low deformation joint (42), one side end of the low deformation joint is connected with a low-order reverse threshold (31), the other side end of the low deformation joint is hollowed, and a first gap (74) is reserved between the low horizontal cover plate and the other low-order reverse threshold (31);

a high horizontal cover plate (52) which covers the deformation joint (41) at the over-high position, is connected with a high-order reverse threshold (32) at one side end, is hollowed at the other side end and is provided with a second gap (71) with the other high-order reverse threshold (32);

the vertical plate (6) is located on the top surface of the low horizontal cover plate (51), the top end of the vertical plate and the high horizontal cover plate (52) are provided with a third gap (72), one side end of the vertical plate is connected with one step-shaped reverse sill (3), the other side end of the vertical plate and the other step-shaped reverse sill (3) are provided with a fourth gap (73), and the vertical plate is used for covering a deformation joint (43) at the position of the over-fall;

the first, second, third and fourth gaps (74, 71, 72, 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 side end of the lower horizontal cover plate (51) is extended to the lower roof structure plate (2).

2. The stepped deformation joint occlusion structure for high and low roofs as claimed in claim 1, wherein one of the boundary beams (1) and one of the stepped reverse ridges (3), the lower roof structure plate (2) and the high horizontal cover plate (52) of the high and low roof structures are integrally cast by reinforced concrete, and the other boundary beam (1) and the other stepped reverse ridge (3), the higher roof structure plate (2), the lower horizontal cover plate (51) and the vertical plate (6) of the high and low roof structures are integrally cast by reinforced concrete.

3. High-low roofing stepped deformation joint engagement structure according to claim 1 or 2, characterized in that the waterproof sealing structure comprises a U-shaped waterproof coiled material (8) with an outward notch, and a stuffing filled in the notch of the U-shaped waterproof coiled material (8).

4. A stepped deformation joint engaging structure for high and low roofs according to claim 3, wherein an L-shaped steel plate (9) is arranged at the turning position of the inner side of the high horizontal cover plate (52) and the low horizontal cover plate (51) facing the deformation joint.

5. The stepped deformation joint engagement structure for high and low roofs as claimed in claim 3, wherein the stuffing comprises a polyethylene foam plastic rod (10) and waterproof ointment (11) from inside to outside.

6. The stepped deformation joint engagement structure for high and low roofs as claimed in claim 4 or 5, wherein a fire retardant belt (12), a thermal insulation material (13) and a sealing paste (14) are sequentially arranged on the drop height deformation joint (43) and the low deformation joint (42) from bottom to top.

7. A high-low step type deformation joint engagement structure according to claim 6, characterized in that the high position deformation joint (41) is provided with a sealing paste (14) and an insulating material (13) from outside to inside, and the end of the lower insulating material (13) is provided with a fire retardant belt (12).

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.