CN101985846A - Elastoplastic device for expansion joints in buildings and road engineering - Google Patents
Elastoplastic device for expansion joints in buildings and road engineering Download PDFInfo
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- CN101985846A CN101985846A CN 201010543479 CN201010543479A CN101985846A CN 101985846 A CN101985846 A CN 101985846A CN 201010543479 CN201010543479 CN 201010543479 CN 201010543479 A CN201010543479 A CN 201010543479A CN 101985846 A CN101985846 A CN 101985846A
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Abstract
The invention discloses an elastoplastic device for expansion joints in buildings and road engineering. The elastoplastic device comprises a cast-in-place concrete layer and a bituminous concrete pavement layer arranged on the upper end of the cast-in-place concrete layer, wherein the center of the cast-in-place concrete layer is provided with an expansion joint filled with sponges or foams; the center of the bituminous concrete pavement layer is provided with a notch which is filled with expansion elastomers and broken stones and is internally provided with a cover plate; lower expansion bolts are symmetrically arranged around the upper part of the cast-in-place concrete layer; lateral expansion bolts are symmetrically arranged around the inner side of the bituminous concrete pavement layer; and steel bars are arranged between the end parts of the lateral expansion bolts and the lower expansion bolts. The device disclosed by the invention has the advantages of simple structure and reasonable design, and is convenient and rapid in construction; the performance requirements of the expansion joints can be met, special expansion members are not needed to be arranged, and the problem of short service life of other expansion devices under small stroke can be effectively solved; and the device disclosed by the invention has the characteristics of good elasticity and neat and beautiful appearance, and can bear vehicle load.
Description
Technical field
The invention belongs to building and road joint technical field, especially relate to a kind of building, highway construction shrinkage joint elastic body device.
Background technology
The shrinkage joint is one of construction work major terms, and it mainly acts on is to prevent that the house from producing the crack because of climate change.Its common way is: along building length direction reserving gaps at a certain distance, with building from the roof, ground such as body of wall or floor all disconnects with upper member, to be embedded in the underground influence of temperature change that is subjected to little because of it in the building foundation, needn't disconnect.To different structural system, the distance between the shrinkage joint is different, in the current Chinese code of practice " Code for design of concrete structures " this is had special regulation.
The shrinkage joint is to avoid building long (general more than 50 meters), because the flexible internal force that brings of length direction is bigger, expand with heat and contract with cold and damage a kind of construction gimmick of building structure body, be ideal near the intermediate point of building, but consider simultaneously to use to go up requirement, generally do from grade beam.The shrinkage joint that underground building and basement etc. are located, for waterproof requirement, the be everlasting outside of waterproof construction layer or bottom overlays glass fabric malthoid, sheet rubber, galvanized sheet iron or copper sheet, and adopt built-in type or detachable waterstop (as rubber, plastics and metal etc.), and fill out the filleting crack with asphalt mortar, bituminous mortar, pitch flax silk or impregnate with bitumen woodwool board etc.This mode often is damaged water resistance owing to the sandstone foreign material occupy the slit, and appearance is not attractive in appearance.In addition, malthoid, glass fabric, iron sheet and copper sheet etc. are ageing-resistant and intensity is all limited, and service life is shorter.
The shrinkage joint is again the important component part in the bridge structure.Under the sedimentation of temperature Change, concrete shrinkage, mobile load effect, Bridge Pier and factor affecting such as creep, bridge span structure can produce distortion, thereby makes beam-ends produce displacement.For being suitable for this displacement and keeping the ride comfort of driving vehicle on the bridge, must between the two ends of bridge floor and between beam-ends and the abutment parados transverse expansion joint be set.Bridge expanssion joint will cause jumping car, noise and leaking in case damage, and influence traffic safety and shortening bridge application life.And the quality and the quality control in the work progress of bridge construction seam have very big relation.
At present, flexible being sewed with of using always on the bridge:
1. steel plate type shrinkage joint, steel plate type is flexible to be sewed with two kinds of forms: the one, zinc-iron skin U type shrinkage joint, it is used on the sidewalk more, and cost is low, easy construction; The 2nd, overlap board-like shrinkage joint, it has certain intensity, can bear than the big wheel load, but durability, travelling and shock absorption is very poor.
2. clog the formula shrinkage joint, the stroke at this shrinkage joint is less, is about 0mm-25mm, and its employed material mostly is asphaltic felt and pitch, and this shrinkage joint construction technology is simple, and cost is low, generally is more common in and strides the old bridge in footpath for a short time.This shrinkage joint filler when heat rises can be extruded, and the filler of extruding during shrinkage can not restore, and because water proofing property can be damaged owing to the sandstone foreign material occupy the slit, can cause the plate body corrosion of steel bar simultaneously, and service life is shorter.
3. geotextiles shrinkage joint, the geotextiles shrinkage joint is the modified form at zinc-iron skin U type shrinkage joint, possesses advantages such as economy, construction simplification and road-ability, be better than the shrinkage joint of other type theoretically, but ageing properties is relatively poor.
4. board-like rubbery expansion joint, because the close easy property and the shock absorption of elastomeric material, make its water resistance and reduce the better performances of noise, but because the sealing of its installing hole is relatively poor, cause and leak, because the defective mounting at shrinkage joint makes shrinkage joint after date when using a section jump out the road surface, cause jolting of driving simultaneously.
Summary of the invention
Technical problem to be solved by this invention is at above-mentioned deficiency of the prior art, a kind of building, highway construction shrinkage joint elastic body device are provided, its simple in structure, reasonable in design and convenient and quick construction, be well positioned to meet the shrinkage joint performance requirement, need not install special telescoping member, efficiently solve shrinkage joint under the little stroke and install and use short problem of time limit, have the vehicular load of bearing simultaneously, good springiness, the characteristics that surfacing is attractive in appearance.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of building, highway construction shrinkage joint elastic body device, it is characterized in that: comprise cast-in-situ concrete layer and the asphalt concrete pavement layer that is arranged on cast-in-situ concrete layer upper end, described cast-in-situ concrete layer center offers the shrinkage joint, inside, described shrinkage joint is filled with cavernous body or foams, described asphalt concrete pavement layer center offers notch, be filled with telescopic resilience body and rubble in the described notch, described rubble is evenly distributed in the telescopic resilience body, also be provided with cover plate in the described notch, described cover plate is positioned at upper end, described shrinkage joint, and described cover plate is fixedlyed connected with cavernous body or foams; Described cast-in-situ concrete layer top is symmetrically set with down expansion bolt, described asphalt concrete pavement layer inboard is symmetrically set with the side expansion bolt, the end of described side expansion bolt and following expansion bolt all is positioned at the telescopic resilience body, be provided with reinforcing bar between the end of described side expansion bolt and following expansion bolt, described side expansion bolt is all fixedlyed connected with reinforcing bar with following expansion bolt.
Above-mentioned building, highway construction shrinkage joint elastic body device is characterized in that: described telescopic resilience body adopts rubber, plastics and pitch to make moulding.
Above-mentioned building, highway construction shrinkage joint elastic body device is characterized in that: described cover plate is fixedlyed connected with cavernous body or foams by the fixedly card that is arranged on its center.
Above-mentioned building, highway construction shrinkage joint elastic body device, it is characterized in that: the inboard of described notch and bottom all are coated with adhesive.
Above-mentioned building, highway construction shrinkage joint elastic body device is characterized in that: between described side expansion bolt and the reinforcing bar and the connected mode between reinforcing bar and the following expansion bolt be welding.
The present invention compared with prior art has the following advantages:
1, simple in structure, reasonable in design, this elastic body device comprises the cast-in-situ concrete layer and is arranged on the asphalt concrete pavement layer of cast-in-situ concrete layer upper end, cast-in-situ concrete layer center offers the shrinkage joint, inside, shrinkage joint is filled with cavernous body or foams, the asphalt concrete pavement layer center offers notch, be filled with telescopic resilience body and rubble in the notch, also be provided with cover plate in the notch, cast-in-situ concrete layer top is symmetrically set with down expansion bolt, the asphalt concrete pavement layer inboard is symmetrically set with the side expansion bolt, and the side expansion bolt is all fixedlyed connected with reinforcing bar with following expansion bolt.
2, convenient and quick construction for building, can directly be installed in the notch, forms non-individual body with road surface or bridge floor, expansion bolt and reinforcing bar etc. need be installed, and surfacing is seamless, and the seam face is attractive in appearance smooth, can not cause dirt to pile up in seam; For bridge, can make up as a stretching device with rubble, reinforcing bar and expansion bolt etc., form the intensive aspect of single unit system, satisfy the requirement of little stroke, and driving is more steady, comfortable than the bridge that seam is arranged, be convenient to safeguard cleaning.
3, be well positioned to meet the shrinkage joint performance requirement, need do not install special telescoping member, efficiently solve shrinkage joint under the little stroke and install and use short problem of time limit.
4, also has the vehicular load of bearing, good springiness, water-tight performance and acid-proof alkaline that surfacing is attractive in appearance and good.
5, can be because of construction does not influence travelling of car, and can absorb omnibearing vibration and distortion, very favourable to the vibration damping of building and bridge, particularly solved the problem of the flexible and distortion of curved sloping skew bridge.
Below by drawings and Examples, the present invention is described in further detail.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention.
Description of reference numerals:
1-telescopic resilience body; The 2-reinforcing bar; The fixing card of 3-;
The 4-cover plate; 5-side expansion bolt; The 6-asphalt concrete pavement layer;
Expansion bolt under the 7-; 8-cast-in-situ concrete layer; 9-cavernous body or foams;
The 10-rubble.
The specific embodiment
A kind of building as shown in Figure 1, highway construction shrinkage joint elastic body device, comprise cast-in-situ concrete layer 8 and the asphalt concrete pavement layer 6 that is arranged on cast-in-situ concrete layer 8 upper end, described cast-in-situ concrete layer 8 center offer the shrinkage joint, inside, described shrinkage joint is filled with cavernous body or foams 9, described asphalt concrete pavement layer 6 centers offer notch, be filled with telescopic resilience body 1 and rubble 10 in the described notch, described rubble 10 is evenly distributed in the telescopic resilience body 1, also be provided with cover plate 4 in the described notch, described cover plate 4 is positioned at upper end, described shrinkage joint, and described cover plate 4 is fixedlyed connected with cavernous body or foams 9; Described cast-in-situ concrete layer 8 top are symmetrically set with down expansion bolt 7, described asphalt concrete pavement layer 6 inboards are symmetrically set with side expansion bolt 5, the end of described side expansion bolt 5 and following expansion bolt 7 all is positioned at telescopic resilience body 1, be provided with reinforcing bar 2 between the end of described side expansion bolt 5 and following expansion bolt 7, described side expansion bolt 5 is all fixedlyed connected with reinforcing bar 2 with following expansion bolt 7.
Described telescopic resilience body 1 adopts rubber, plastics and pitch to make moulding.
As shown in Figure 1, described cover plate 4 is fixedlyed connected with cavernous body or foams 9 by the fixedly card 3 that is arranged on its center.Prevent cover plate 4 slippage from the shrinkage joint.The quantity of fixing card 3 is determined according to the length of device, is about every one of 500mm.
The inboard of described notch and bottom all are coated with adhesive.This adhesive is used to strengthen the intensity of bonding interface, makes the telescopic resilience body 1 can be securely and the side and the bottom surface bonding of notch, plays the effect of slip-off preventing, has prolonged its application life simultaneously.
Between described side expansion bolt 5 and the reinforcing bar 2 and the connected mode between reinforcing bar 2 and the following expansion bolt 7 be welding.
Among the present invention, cast-in-situ concrete layer 8 and asphalt concrete pavement layer 6 are bodies of building or road, rubble 11 is as skeleton, mainly work to bear traffic load, the shrinkage joint is the shrinkage joint of expanding with heat and contract with cold, on road and bridge, guaranteed the displacement that beam-ends produces, cover plate 4 covers in the upper end, shrinkage joint, single unit system is played preliminary sealing function, also be a kind of support framework simultaneously, cavernous body or foams 9 are installed in the shrinkage joint, can prevent the loss of telescopic resilience body 1 thick liquid when high temperature pours into effectively.
Operating principle of the present invention is: because telescopic resilience body 1 adopts rubber, plastics and pitch to make moulding, therefore it had both had elasticity (rubber), also has plasticity (plastics), better at high temperature (140～190 ℃) current downflow and anti-water, chemical resistance, can show the flowability the same with pitch; Show elasticity and plasticity down at normal temperature (25～+ 60 ℃); And under the high frequency effect (as impact, vibration) what show is high resiliency, acts on enough plasticity and the retractilities of next demonstration at low frequency (as creeping under flexible, the nature temperature action under).During installation, for building, can directly be installed in the notch, form non-individual body with road surface or bridge floor, expansion bolt and reinforcing bar etc. need be installed, surfacing is seamless, and the seam face is attractive in appearance smooth, can not cause dirt to pile up in seam; During for bridge, can make up as a stretching device, form the intensive aspect of single unit system, satisfy the requirement of little stroke, and driving be more steady, comfortable than the bridge that seam is arranged, be convenient to safeguard cleaning with rubble, reinforcing bar and expansion bolt etc.
In addition, cooling rapidly after the character of elastic body 1 has determined to mat formation owing to contract, get final product open to traffic after the cooling, but, can not influence travelling of car because of construction if meet the also half range construction of heavy traffic highway section, simultaneously can bear vehicular load, flexible again, have the function at little shrinkage joint, can absorb omnibearing vibration and distortion, vibration damping to building or bridge is very favourable, has particularly solved the problem of the flexible and distortion of curved sloping skew bridge.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, everyly any simple modification that above embodiment did, change and equivalent structure changed, all still belong in the protection domain of technical solution of the present invention according to the technology of the present invention essence.
Claims (5)
1. building, highway construction shrinkage joint elastic body device, it is characterized in that: comprise cast-in-situ concrete layer (8) and be arranged on the asphalt concrete pavement layer (6) of cast-in-situ concrete layer (8) upper end, described cast-in-situ concrete layer (8) center offers the shrinkage joint, inside, described shrinkage joint is filled with cavernous body or foams (9), described asphalt concrete pavement layer (6) center offers notch, be filled with telescopic resilience body (1) and rubble (10) in the described notch, described rubble (10) is evenly distributed in the telescopic resilience body (1), also be provided with cover plate (4) in the described notch, described cover plate (4) is positioned at upper end, described shrinkage joint, and described cover plate (4) is fixedlyed connected with cavernous body or foams (9); Described cast-in-situ concrete layer (8) top is symmetrically set with down expansion bolt (7), described asphalt concrete pavement layer (6) inboard is symmetrically set with side expansion bolt (5), the end of described side expansion bolt (5) and following expansion bolt (7) all is positioned at telescopic resilience body (1), be provided with reinforcing bar (2) between the end of described side expansion bolt (5) and following expansion bolt (7), described side expansion bolt (5) is all fixedlyed connected with reinforcing bar (2) with following expansion bolt (7).
2. according to the described building of claim 1, highway construction shrinkage joint elastic body device, it is characterized in that: described telescopic resilience body (1) adopts rubber, plastics and pitch to make moulding.
3. according to the described building of claim 1, highway construction shrinkage joint elastic body device, it is characterized in that: described cover plate (4) is fixedlyed connected with cavernous body or foams (9) by the fixedly card (3) that is arranged on its center.
4. according to the described building of claim 1, highway construction shrinkage joint elastic body device, it is characterized in that: the inboard of described notch and bottom all are coated with adhesive.
5. according to the described building of claim 1, highway construction shrinkage joint elastic body device, it is characterized in that: between described side expansion bolt (5) and the reinforcing bar (2) and the connected mode between reinforcing bar (2) and the following expansion bolt (7) be welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010543479 CN101985846A (en) | 2010-11-14 | 2010-11-14 | Elastoplastic device for expansion joints in buildings and road engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010543479 CN101985846A (en) | 2010-11-14 | 2010-11-14 | Elastoplastic device for expansion joints in buildings and road engineering |
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| CN101985846A true CN101985846A (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010543479 Pending CN101985846A (en) | 2010-11-14 | 2010-11-14 | Elastoplastic device for expansion joints in buildings and road engineering |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561146A (en) * | 2012-02-10 | 2012-07-11 | 成都市新筑路桥机械股份有限公司 | Seamless elastomer telescoping device |
| CN102926323A (en) * | 2012-11-10 | 2013-02-13 | 广东易山重工股份有限公司 | Bridge gap filling device |
| CN103556569A (en) * | 2013-11-22 | 2014-02-05 | 张志成 | Composite seamless expansion joint for bridge |
| CN103669204A (en) * | 2014-01-02 | 2014-03-26 | 南京工业大学 | Macromolecular elastomer expansion joint |
| CN104818669A (en) * | 2015-05-11 | 2015-08-05 | 苏交科集团股份有限公司 | Sliding seamless telescoping device |
| CN105926433A (en) * | 2016-05-06 | 2016-09-07 | 湖北永益金属地板有限公司 | Method capable of solving problems existing in expansion joint structure |
| CN106869020A (en) * | 2017-02-15 | 2017-06-20 | 许昌义 | Array bridge expanssion joint |
| CN108252208A (en) * | 2018-03-07 | 2018-07-06 | 佛山科学技术学院 | A kind of bridge deformation seam |
| CN108301306A (en) * | 2018-04-02 | 2018-07-20 | 广东中天市政工程设计有限公司 | Midway half-bridge structure |
| CN108487057A (en) * | 2018-05-22 | 2018-09-04 | 杭州溯真科技有限公司 | A kind of plough mouth formula liner |
| CN108487056A (en) * | 2018-05-22 | 2018-09-04 | 杭州溯真科技有限公司 | A kind of bridge expansion joint installation |
| CN108824184A (en) * | 2018-08-21 | 2018-11-16 | 长沙理工大学 | Height-adjustable UHPC bridge extension joint |
| CN110644630A (en) * | 2018-06-27 | 2020-01-03 | 青岛大方新瑞网络科技有限公司 | Sealing device for connecting joint of steel structure board house |
| CN110965426A (en) * | 2019-12-26 | 2020-04-07 | 中冶南方工程技术有限公司 | Rigid-flexible composite pavement expansion joint structure and construction method thereof |
| CN110965427A (en) * | 2019-12-26 | 2020-04-07 | 中冶南方工程技术有限公司 | Continuous reinforced concrete composite asphalt pavement expansion joint structure and construction method thereof |
| CN112177179A (en) * | 2020-10-03 | 2021-01-05 | 中交四公局建筑工程有限公司 | Large integral underground space structure shrinkage crack control device and control method |
| CN112431089A (en) * | 2020-11-11 | 2021-03-02 | 黑龙江建筑职业技术学院 | Fixing device and method for repairing road and bridge cracks |
| CN114086442A (en) * | 2021-10-15 | 2022-02-25 | 武汉工程大学 | Continuous reinforcement combined type road surface seamless expansion joint structure |
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| CN201850661U (en) * | 2010-11-14 | 2011-06-01 | 西安达盛隔震技术有限公司 | Plastic elastomer device for building or road engineering expansion joint |
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| CN1123860A (en) * | 1994-11-28 | 1996-06-05 | 黄连经 | Construction of elastic joint of bridge connection gap with elastomer and broken pebbles filled in |
| CN2408134Y (en) * | 2000-01-18 | 2000-11-29 | 衡水宝力工程橡胶有限公司 | Filling type elastic body bridge telescopic device |
| CN1384246A (en) * | 2001-05-09 | 2002-12-11 | 衡水橡胶股份有限公司 | Manufacture of buried extension joint with modified asphalt |
| CN201314083Y (en) * | 2008-08-05 | 2009-09-23 | 深圳市建筑装饰(集团)有限公司 | Novel decoration construction structure of architectural main body expansion joint |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561146A (en) * | 2012-02-10 | 2012-07-11 | 成都市新筑路桥机械股份有限公司 | Seamless elastomer telescoping device |
| CN102926323A (en) * | 2012-11-10 | 2013-02-13 | 广东易山重工股份有限公司 | Bridge gap filling device |
| CN103556569A (en) * | 2013-11-22 | 2014-02-05 | 张志成 | Composite seamless expansion joint for bridge |
| CN103556569B (en) * | 2013-11-22 | 2016-01-20 | 张志成 | A kind of bridge composite seamless shrinkage joint |
| CN103669204A (en) * | 2014-01-02 | 2014-03-26 | 南京工业大学 | Macromolecular elastomer expansion joint |
| CN104818669A (en) * | 2015-05-11 | 2015-08-05 | 苏交科集团股份有限公司 | Sliding seamless telescoping device |
| CN105926433A (en) * | 2016-05-06 | 2016-09-07 | 湖北永益金属地板有限公司 | Method capable of solving problems existing in expansion joint structure |
| CN106869020B (en) * | 2017-02-15 | 2019-09-24 | 绍兴市慧融臻合新能源科技有限公司 | Array bridge expanssion joint |
| CN106869020A (en) * | 2017-02-15 | 2017-06-20 | 许昌义 | Array bridge expanssion joint |
| CN108252208A (en) * | 2018-03-07 | 2018-07-06 | 佛山科学技术学院 | A kind of bridge deformation seam |
| CN108301306A (en) * | 2018-04-02 | 2018-07-20 | 广东中天市政工程设计有限公司 | Midway half-bridge structure |
| CN108301306B (en) * | 2018-04-02 | 2024-02-27 | 广东中天市政工程设计有限公司 | Half-way half-bridge structure |
| CN108487057A (en) * | 2018-05-22 | 2018-09-04 | 杭州溯真科技有限公司 | A kind of plough mouth formula liner |
| CN108487056A (en) * | 2018-05-22 | 2018-09-04 | 杭州溯真科技有限公司 | A kind of bridge expansion joint installation |
| CN108487057B (en) * | 2018-05-22 | 2024-05-14 | 杭州溯真科技有限公司 | Plough nozzle type gasket |
| CN108487056B (en) * | 2018-05-22 | 2024-05-14 | 杭州溯真科技有限公司 | Bridge expansion joint device |
| CN110644630A (en) * | 2018-06-27 | 2020-01-03 | 青岛大方新瑞网络科技有限公司 | Sealing device for connecting joint of steel structure board house |
| CN108824184A (en) * | 2018-08-21 | 2018-11-16 | 长沙理工大学 | Height-adjustable UHPC bridge extension joint |
| CN110965426A (en) * | 2019-12-26 | 2020-04-07 | 中冶南方工程技术有限公司 | Rigid-flexible composite pavement expansion joint structure and construction method thereof |
| CN110965427A (en) * | 2019-12-26 | 2020-04-07 | 中冶南方工程技术有限公司 | Continuous reinforced concrete composite asphalt pavement expansion joint structure and construction method thereof |
| CN112177179A (en) * | 2020-10-03 | 2021-01-05 | 中交四公局建筑工程有限公司 | Large integral underground space structure shrinkage crack control device and control method |
| CN112431089A (en) * | 2020-11-11 | 2021-03-02 | 黑龙江建筑职业技术学院 | Fixing device and method for repairing road and bridge cracks |
| CN114086442A (en) * | 2021-10-15 | 2022-02-25 | 武汉工程大学 | Continuous reinforcement combined type road surface seamless expansion joint structure |
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Open date: 20110316 |