CN110130507B - Device for controlling width of expansion joint of ultra-long clear water concrete wall - Google Patents
Device for controlling width of expansion joint of ultra-long clear water concrete wall Download PDFInfo
- Publication number
- CN110130507B CN110130507B CN201910285038.0A CN201910285038A CN110130507B CN 110130507 B CN110130507 B CN 110130507B CN 201910285038 A CN201910285038 A CN 201910285038A CN 110130507 B CN110130507 B CN 110130507B
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- Prior art keywords
- limit box
- expansion joint
- wall
- additional
- nut
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000013505 freshwater Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a device for controlling the width of an expansion joint of an ultra-long clear water concrete wall, which comprises an expansion joint, wall units on two sides and a screw rod, wherein a sleeve and a hard limit box are anchored in each wall unit, the middle section of the screw rod is positioned in the left sleeve and the right sleeve, two ends of the screw rod respectively extend into the inner cavities of the left limit box and the right limit box, each end of the screw rod is provided with a main nut and a main elastic gasket, and each main elastic gasket is positioned between the main nut on the same side and the inner side wall of the limit box on the same side; an additional nut is fixed at the outer end of each main nut, a first bolt is screwed on each additional nut, a first through hole is formed in the outer side wall of each limit box, the rod portion of each first bolt penetrates through the first through hole of the limit box on the same side, and the head portion of each first bolt abuts against the outer side wall of the limit box on the same side. The device can accurately control the width of the expansion joint within 15 mm.
Description
Technical Field
The invention relates to the technical field of bare concrete wall construction in civil engineering, in particular to a device for controlling the width of an expansion joint of an ultra-long bare concrete wall.
Background
The bare concrete is named because of the excellent decorative effect, belongs to one-time casting molding, does not do any external decoration, directly adopts the natural surface effect of cast-in-place concrete as a facing, is different from common concrete, has the advantages of flat and smooth surface, uniform color, distinct edges and corners, no collision damage and pollution and the like, and is more and more widely popularized and applied. Such as the ultra-long decorative exterior walls of large venues, the bare concrete walls described above may be used, with the ultra-long being shear walls exceeding 44 meters or frame structure walls exceeding 55 meters.
The construction of the ultra-long clear water concrete wall in the prior art has the following defects. Firstly, in order to avoid thermal expansion and cold contraction of the ultra-long wall, an expansion joint is reserved at intervals, the width of the expansion joint is 20-30 mm, the width range has no influence on the common ultra-long wall, but the requirements on the decoration effect of the facade of the clear water wall, especially the facing clear water concrete wall are very strict, so that the width of the expansion joint is controlled in a smaller range, such as 10-15 mm, so that the visual effect of the facade of the ultra-long clear water concrete wall can be met. Moreover, the two sections of walls at the two sides of the expansion joint are easy to be misplaced in the height direction or the width direction, and especially, when the misplaced sections are misplaced, the whole visual effect of the vertical face of the wall is greatly destroyed for the overlength facing bare concrete wall with the opposite face being a curved face. In summary, when the outer surface of the wall body is designed into an ultra-long multi-curve arc surface, the expansion joint is too large, and the settlement dislocation between the wall units is more serious to damage the visual effect.
Disclosure of Invention
The invention aims to solve the technical problem of providing the device for controlling the width of the expansion joint of the ultra-long clear water concrete wall, which can avoid dislocation of the walls at two sides of the expansion joint and accurately control the width of the expansion joint to be within 15 mm.
The invention provides a device for controlling the width of an expansion joint of an ultra-long clear water concrete wall, which comprises an expansion joint and two wall units positioned at the left side and the right side of the expansion joint, wherein a sleeve and a hard limit box are anchored in each wall unit, an opening at the inner end of each sleeve is communicated with the expansion joint, and an opening at the outer end of each sleeve is communicated with a through hole on the inner side wall of the limit box at the same side; the device also comprises a screw, the middle section of the screw is positioned in the left sleeve and the right sleeve, two ends of the screw respectively extend into the inner cavities of the left limit box and the right limit box, each end of the screw is provided with a main nut and a main elastic gasket, and each main elastic gasket is positioned between the main nut on the same side and the inner side wall of the limit box on the same side; an additional nut is fixed at the outer end of each main nut, a first bolt is screwed on each additional nut, a first through hole is formed in the outer side wall of each limit box, the rod portion of each first bolt penetrates through the first through hole of the limit box on the same side, and the head portion of each first bolt abuts against the outer side wall of the limit box on the same side.
Compared with the prior art, the device for controlling the width of the expansion joint of the ultra-long clear water concrete wall has the following advantages and beneficial effects.
For an ultra-long wall body, shrinkage deformation occurs with high probability, under the condition that wall body concrete can wrap the limit box to move outwards, namely to move away from an expansion joint, as the outer side wall of the limit box and the first bolt head are directly propped up, the position can be stressed to exert tensioning action to prevent the outward movement, two results are generated, firstly, the shrinkage deformation trend of the wall body is not large, the shrinkage trend of the outward movement is successfully prevented by the first bolt head, and once the shrinkage deformation trend is large, the positions of the first bolt head and the outer side wall of the limit box are preferentially destroyed; then continuously shrinking and moving outwards to enable the inner side wall of the limit box to be abutted against the main nut through the main elastic gasket, wherein part of shrinkage energy and trend are released and consumed due to preferential damage at the first bolt, and part of deformation energy is absorbed and converted by the main elastic gasket after being compressed, that is, the structure essentially forms double protection, and the shrinkage deformation of the wall body is blocked by the large probability constraint, so that the maximum width of an expansion joint between two wall units is controlled within 15 mm; meanwhile, the device increases the integrity and firmness of the two side wall units of the expansion joint, and avoids sedimentation and dislocation between the wall units, thereby guaranteeing the elevation effect of the ultra-long clear water concrete wall, especially the ultra-long multi-curve arc clear water concrete wall decoration surface.
Preferably, the outer side wall of each limit box is provided with a thick plate, and a gap exists between the inner surface of the thick plate and the outer end of the additional nut on the same side; the design is mainly aimed at the expansion deformation of the wall body, because in actual use, the wall body does have the expansion deformation with small probability, the wall body concrete can be wrapped up in the limit box to move towards the inner side, namely the direction close to the expansion joint, so that the inner side of the thick plate is propped against the outer end of the additional nut, the strength and the firmness of the inner side wall of the limit box are enhanced due to the existence of the thick plate, the stress position is not easy to damage, and the maximum expansion amplitude of the wall units is limited by the initial gap between the inner surface of the thick plate and the outer end of the additional nut on the same side, so that the minimum width of the expansion joint between two wall units can be controlled to be more than 10mm through the structure, and the elevation effect of the decorative surface of the ultra-long clear water concrete wall is further ensured.
As a further preferred mode, an upper additional pull plate and a lower additional pull plate are arranged on each additional nut, a counter-pull threaded hole is formed in each additional pull plate, a second bolt is screwed in each counter-pull threaded hole, an upper second through hole and a lower second through hole are formed in the outer side wall of each limit box, the rod part of each second bolt penetrates through the corresponding second through hole, the head part of each second bolt abuts against the outer side wall of the limit box on the same side through an additional elastic gasket, and the thickness of the additional elastic gasket is smaller than that of the main elastic gasket; therefore, the structure essentially forms triple protection, namely, the head of the first bolt of the first layer directly abuts against the outer side wall of the limit box for constraint, the head of the second bolt of the second layer indirectly abuts against the outer side wall of the limit box through the additional gasket, the inner side wall of the limit box of the third layer indirectly abuts against the main nut through the main elastic gasket, the first layer directly and rigidly abuts against the main nut for response, the second layer is centered through the additional gasket for response speed, and even a gap can be reserved between the main elastic gasket of the third layer and the main nut and the inner side wall of the limit box, so that the response is slowest; and the first layer is easiest to destroy, the second layer is inferior, and the elastic gasket of the third layer is thickest and least easy to destroy, that is to say, the triple defensive is responded in sequence and the constraint force is progressive layer by layer, can ensure to provide continuous effectual constraint to the shrinkage deformation of wall unit, and the accurate stable control expansion joint width further ensures the facade effect of overlength clear water concrete wall decorative face.
Drawings
FIG. 1 is a schematic top cross-sectional view of an apparatus for controlling the width of an expansion joint of an ultra-long fresh water concrete wall according to the present invention.
FIG. 2 is an enlarged schematic view of an embodiment of the apparatus for controlling the width of an expansion joint of an ultra-long bare concrete wall according to the present invention.
FIG. 3 is an enlarged schematic view of another embodiment of the apparatus for controlling the width of an expansion joint of an ultra-long fresh water concrete wall according to the present invention.
The expansion joint, 2, wall unit, 3, sleeve pipe, 4, limit box, 4.1, inside wall, 4.2, outside wall, 5, screw rod, 6, main nut, 7, main elastic gasket, 8, additional nut, 9, first bolt, 10, thick plate, 11, additional pulling plate, 12, second bolt, 13, additional elastic gasket, 14, angle steel are shown in the figure.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
As shown in fig. 1 and 2, an embodiment of the apparatus for controlling the width of an expansion joint of an ultra-long fresh water concrete wall according to the present invention includes an expansion joint 1 and two wall units 2 positioned at both left and right sides of the expansion joint 1. The concept of direction is unified first, and in this application, the direction close to the expansion joint 1 is the inside and the direction far away from the expansion joint is the outside.
Each wall unit 2 is internally anchored with a sleeve 3 and a hard limit box 4 such as steel, the inner end opening of each sleeve 3 is communicated with the expansion joint 1, the inner side wall 4.1 of each limit box 4 is provided with a through hole, and the outer end opening of each sleeve 3 is communicated with the through hole on the inner side wall 4.1 of the limit box 4 on the same side. The expansion joint 1 is filled with a flexible felt pad. Herein, the same side in the present application refers to the wall units located on the same side of the expansion joint 1, for example, all located on the left side or the right side of the expansion joint 1.
Still be equipped with two angle steel 14 on the sleeve pipe 3 that is located the left side, the device of the control crack width of this application just relies on above-mentioned angle steel 14 and wall form and steel reinforcement cage to fix in order to realize whole location.
The device for controlling the width of the expansion joint of the ultra-long clear water concrete wall further comprises a screw rod 5, the middle section of the screw rod 5 is rotatably sleeved in the left sleeve pipe 3 and the right sleeve pipe 3, and two ends of the screw rod 5 respectively extend into the inner cavities of the left limit box 4 and the right limit box 4. Each end of the screw 5 is provided with a main nut 6 and a main elastic gasket 7, each main elastic gasket 7 is located between the main nut 6 on the same side and the inner side wall 4.1 of the limit box 4 on the same side, and in this embodiment, each main elastic gasket 7 is abutted by the main nut 6 on the same side and the inner side wall 4.1 of the limit box 4. An additional nut 8 is fixedly welded at the outer end of each main nut 6, a first bolt 9 is screwed on each additional nut 8, a first through hole is formed in the outer side wall 4.2 of each limiting box 4, the rod portion of each first bolt 9 penetrates through the first through hole of the same side limiting box 4, and the head portion of each first bolt 9 abuts against the outer side wall 4.2 of the same side limiting box 4.
The inner surface of the outer side wall 4.2 of each limit box 4 is provided with a thick plate 10, and a gap exists between the inner surface of the thick plate 10 and the outer end of the additional nut 8 on the same side. Of course, the first through hole penetrates both the outer side wall 4.2 of the limit box 4 and the thickened plate 10.
As shown in fig. 3, another embodiment of the apparatus for controlling the width of an expansion joint of an ultra-long fresh water concrete wall according to the present invention is different from the previous embodiment in that: an upper additional pull plate 11 and a lower additional pull plate 11 are arranged on each additional nut 8, a counter-pull threaded hole is arranged on each additional pull plate 11, a second bolt 12 is screwed in each counter-pull threaded hole, an upper second through hole and a lower second through hole are arranged on the outer side wall 4.2 of each limit box 4, of course, the two second through holes also penetrate through the thick plate 10 at the same time, the rod part of each second bolt 12 penetrates through the corresponding second through hole, the head part of each second bolt 12 abuts against the outer side wall 4.2 of the same-side limit box 4 through an additional elastic gasket 13, and the thickness of the additional elastic gasket 13 is smaller than that of the main elastic gasket 7. In this embodiment, each main elastic pad 7 may not be abutted by the main nut 6 and the inner side wall 4.1 of the limit box 4 located on the same side any more, but a gap is left, so that the corresponding time of the third sub-protection is delayed, and the effect of gradual response is achieved.
In this application, can also make construction joint and open seam as far as possible with expansion joint 1 coincidence to realize the effect of trinket unification, further satisfy the demand that finish fair-faced concrete one shot forming, whole coherent, detail are regular.
Claims (2)
1. A device for controlling expansion joint width of overlength clear water concrete wall, its characterized in that: the expansion joint comprises an expansion joint (1) and two wall units (2) positioned at the left side and the right side of the expansion joint (1), wherein a sleeve (3) and a hard limit box (4) are anchored in each wall unit (2), an inner end opening of each sleeve (3) is communicated with the expansion joint (1), and an outer end opening of each sleeve (3) is communicated with a through hole on the inner side wall (4.1) of the limit box (4) at the same side; the device also comprises a screw rod (5), wherein the middle section of the screw rod (5) is positioned in the left sleeve pipe (3) and the right sleeve pipe (3), the two ends of the screw rod (5) respectively extend into the inner cavities of the left limit box (4) and the right limit box (4), each end of the screw rod (5) is provided with a main nut (6) and a main elastic gasket (7), and each main elastic gasket (7) is positioned between the main nut (6) on the same side and the inner side wall (4.1) of the limit box (4) on the same side; an additional nut (8) is fixed at the outer end of each main nut (6), a first bolt (9) is screwed on each additional nut (8), a first through hole is formed in the outer side wall (4.2) of each limit box (4), the rod part of each first bolt (9) penetrates through the first through hole of the limit box (4) on the same side, and the head part of each first bolt (9) is abutted against the outer side wall (4.2) of the limit box (4) on the same side;
the outer side wall (4.2) of each limit box (4) is provided with a thick plate (10), and a gap exists between the inner surface of the thick plate (10) and the outer end of the additional nut (8) on the same side.
2. The apparatus for controlling the expansion joint width of ultra-long fresh water concrete wall according to claim 1, wherein: an upper additional pull plate (11) and a lower additional pull plate (11) are arranged on each additional nut (8), a counter-pull threaded hole is formed in each additional pull plate (11), a second bolt (12) is arranged in each counter-pull threaded hole in a rotating mode, an upper second through hole and a lower second through hole are formed in the outer side wall (4.2) of each limit box (4), the rod portion of each second bolt (12) penetrates through the corresponding second through hole, the head portion of each second bolt (12) abuts against the outer side wall (4.2) of the same-side limit box (4) through an additional elastic gasket (13), and the thickness of the additional elastic gasket (13) is smaller than that of the main elastic gasket (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910285038.0A CN110130507B (en) | 2019-04-10 | 2019-04-10 | Device for controlling width of expansion joint of ultra-long clear water concrete wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910285038.0A CN110130507B (en) | 2019-04-10 | 2019-04-10 | Device for controlling width of expansion joint of ultra-long clear water concrete wall |
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| Publication Number | Publication Date |
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| CN110130507A CN110130507A (en) | 2019-08-16 |
| CN110130507B true CN110130507B (en) | 2024-03-22 |
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| CN201910285038.0A Active CN110130507B (en) | 2019-04-10 | 2019-04-10 | Device for controlling width of expansion joint of ultra-long clear water concrete wall |
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| CN207362687U (en) * | 2017-10-27 | 2018-05-15 | 江苏金腾园林建设有限公司 | A kind of bridge expanssion joint |
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2019
- 2019-04-10 CN CN201910285038.0A patent/CN110130507B/en active Active
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| CN110130507A (en) | 2019-08-16 |
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