CN105780940A - Building expansion joint anti-seeping structure - Google Patents
Building expansion joint anti-seeping structure Download PDFInfo
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- CN105780940A CN105780940A CN201610284781.0A CN201610284781A CN105780940A CN 105780940 A CN105780940 A CN 105780940A CN 201610284781 A CN201610284781 A CN 201610284781A CN 105780940 A CN105780940 A CN 105780940A
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- expansion joint
- concrete
- steel bar
- framework
- steel reinforcement
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6806—Waterstops
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
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- Architecture (AREA)
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- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a building expansion joint anti-seeping structure, which comprises a sealing material, an upstream face filling material, a middle embedded waterstop belt, a downstream face filling material and left and right steel bar frameworks, wherein the left and right steel bar frameworks are symmetrically arranged at the two sides of the original structure telescopic seams; waterstop strips which expand when meeting water are arranged between the left and right steel bar frameworks and old concrete; left and right steel bar frameworks are respectively arranged in positions, near the original structure expansion joint, of the left and right steel bar frameworks; a left installing cavity is formed between the two left steel bar frameworks; a right installing cavity is formed between the two right steel bar frameworks; the left and right parts of the middle embedded waterstop belt are arranged in the left and right installing cavities; left and right new concrete is cast by using the left and right steel bar frameworks as the foundation; the downstream face filling material jacks a position between the sealing material and the middle embedded waterstop belt. The building expansion joint anti-seeping structure has the advantages that the connection with the concrete is firm and reliable; the leakage blocking effect is good; the service life is long; the deformation capability is high; the concrete expansion joint seepage problem is solved.
Description
Technical field:
The present invention relates to the structure of building, particularly relate to the joint seal structure of a kind of field fabrication.
Background technology:
Expansion joint refers to, for preventing building or structures from changing (flatulence of heat type, shrinkage) due to climate temperature, makes structure produce crack or destruction and a build joint arranging along the suitable position of building or structures length direction.The Seepage that concrete extension joint causes because the factors such as sedimentation, deformation cause expansion joint water-stopping system to damage often occurs in engineering practice, traces it to its cause, and this mostly is middle buried water stop (in bury water band) and damages caused seepage.
At present, prior art mainly adopts following three kinds of processing methods for above-mentioned seepage: 1, directly adopt chemical grouting method to coordinate additional waterproof, clean out by the implant of buried water stop in expansion joint (in bury water band) upstream face, flax silk in filling, flax silk top adopts contraction-free grouting concrete closure, and several injected holes are set at plugged zone, reach after intensity until plugged zone, chemical slip casting material is injected on flax silk, flax silk and chemical slip casting material is made to be linked to be entirety, expansion joint seals and sets up additional waterproofing layer again, forms sealing system；2, filling water expandable waterstop or water-swellable water-stop glue is adopted to coordinate additional waterproof, clean out by the implant of buried water stop in expansion joint (in bury water band) upstream face, water expandable waterstop or water-swellable water-stop glue in filling, set up additional waterproofing layer after expansion joint is sealed again；3, arrange at the upstream face at expansion joint and between external labeling type or detachable waterstop, external labeling type or detachable waterstop with both sides, expansion joint concrete, adopt bonding or crimping.
After adopting the first disposal methods, though serving certain plugging action, but its adaptive deformation ability is excessively poor, the concrete quality of connection of grouting material and injecting paste material and both sides, expansion joint is directly connected to waterproof effect, and in actual application, the concrete quality of connection of grouting material and injecting paste material and both sides, expansion joint is unsatisfactory, time slightly length will produce gap, thus causing seepage, therefore, this method may be only available for settlement stability, deforms little, life cycle is short expansion joint leak stopping；The adaptive deformation ability of the second processing method is also excessively poor, cross section, old expansion joint deviation especially width is required height, and whether water expandable waterstop or water-swellable water-stop glue are connected with the concrete of both sides, expansion joint is tightly the key of regulation effect, but in actual application, this connection is not highly desirable, time slightly length will produce gap, cause seepage, additionally water expandable waterstop or water-swellable water-stop glue water-swellable are slow, the effect of sealing is not had in short time, therefore, it is little that this kind of method also may be only available for expansion joint width depth offset, settlement stability, deform little, the expansion joint leak stopping that life cycle is short；In addition, waterproof material (such as grouting material, injecting paste material, water expandable waterstop, water-swellable water-stop glue etc.) in first two method is often naked to be exposed on the external, contact with outside air or water for a long time, very easily aging, service life is shorter, and the temperature deformation of the material temperature deformation of first two method employing and concrete self differs greatly, life-time service needs repeatedly to process.Although the third processing method has certain deformation adaptive capacity, but waterstop exposes easily aging for a long time, and the concrete flatness requirement in both sides, expansion joint is higher, and additionally waterstop infiltration hidden danger easily occurs with the junction of concrete surface.
Summary of the invention:
The technical problem to be solved in the present invention is, one is provided to be connected with concrete firm, plugging effect is good, long service life, and deform adaptable building expansion joint anti-leakage structure, thus solve the leakage problems that concrete extension joint causes because the factors such as sedimentation, deformation cause expansion joint water-stopping system to damage.
nullFor solving above-mentioned technical problem，The present invention provides a kind of building expansion joint anti-leakage structure，Including be arranged in both sides, original structure expansion joint old concrete and be contained in old concrete sealing material and in bury water band，Wherein，Also include encapsulant、Upstream face packing material、Middle buried water stop、Back side packing material and by the left framework of steel reinforcement of some reinforcing bar bindings and right framework of steel reinforcement，Left、Right framework of steel reinforcement is symmetricly set on the left and right sides at original structure expansion joint，And all fixing with old concrete be connected，Left、Water expandable waterstop is all had between right framework of steel reinforcement and old concrete，Water expandable waterstop is arranged along original structure expansion joint length direction，Left framework of steel reinforcement is provided with two concordant and that cross section is all rectangular left steel bar frameworks before and after side, original structure expansion joint，Left installation cavity is formed between two left steel bar frameworks，Right framework of steel reinforcement is provided with two concordant and that cross section is all rectangular right steel bar frameworks before and after side, original structure expansion joint，Right installation cavity is formed between two right steel bar frameworks，Two left steel bar frameworks and two right steel bar frameworks are symmetrical，The left part of middle buried water stop and right part are attached separately in left installation cavity and right installation cavity，Middle buried water stop with in bury water band and align，Respectively with a left side、Left novel concrete and right novel concrete is built based on right framework of steel reinforcement，Back side packing material withstands between middle buried water stop and sealing material，Encapsulant is positioned at a left side、Between right novel concrete and three's outer surface flush，Upstream face packing material withstands between encapsulant and middle buried water stop.
Building expansion joint of the present invention anti-leakage structure, wherein, left and right framework of steel reinforcement is all extended with some lengths of rebar, and the method that each lengths of rebar anchors after all adopting bar planting is fixedly connected on old concrete.
Building expansion joint of the present invention anti-leakage structure, wherein, the intensity of left and right novel concrete is not less than the intensity of old concrete, and the thickness of left and right novel concrete is 200mm all at least, and width is 500mm all at least.
Building expansion joint of the present invention anti-leakage structure, wherein, middle buried water stop is steel plate water stopper or rubber fastening band.
Building expansion joint of the present invention anti-leakage structure, wherein, water expandable waterstop is pasted on old concrete surface by adhesive or is fixed by screws on old concrete surface.
Building expansion joint of the present invention anti-leakage structure, wherein, water expandable waterstop is rubber water-proof bar.
nullAfter adopting said structure，Compared with prior art，Building expansion joint of the present invention anti-leakage structure has the advantage that with prior art after leakage problems occurs in expansion joint，Usual way be adopt by bury the water implant complete liquidation with upstream face clean，Then irrigate、Filling or other waterproof material bonding are different，The present invention still keep original in bury the water implant with upstream face constant，The old concrete surface, both sides, expansion joint that seepage occurs is respectively provided with left framework of steel reinforcement、Right framework of steel reinforcement and water expandable waterstop，And based on this left framework of steel reinforcement and right reinforcing bar, build left novel concrete and right novel concrete，Thus left part and the right part of middle buried water stop are embedded in two newly-laid concretes in advance，In addition，Also encapsulant is set between left novel concrete and right novel concrete、Upstream face packing material and back side packing material，Therefore，When building deforms because of climate temperature change，Middle buried water stop can produce deformation under the pulling function of two blocks of newly-laid concretes，Thus coordinating the old concrete at two ends, original structure expansion joint to shrink or expansion，Preset in the middle part of middle buried water stop under the effect at deformation position，The deformation adaptive capacity of the present invention is very strong，Left framework of steel reinforcement and right framework of steel reinforcement make the present invention very firm with the connection of old concrete with the fixing connected mode of old concrete.Owing to middle buried water stop is all embedded in newly-laid concrete at all the other positions except deformation position, middle part, in addition the sealing function of encapsulant, upstream face packing material, back side packing material and water expandable waterstop, be equivalent to buried water stop in handle and be enclosed in inside, therefore, the present invention plays the middle buried water stop of main seal effect and will not contact with outside air or water, also being just not susceptible to aging or corrosion accordingly, service life is very long.The present invention seal except middle buried water stop, also have encapsulant, upstream face packing material, back side packing material, water expandable waterstop, therefore, the plugging effect of the present invention is very good.In addition, this anti-leakage structure of the present invention makes the present invention that cross section, the expansion joint deviation of generation seepage and the flatness requirement of both sides, expansion joint old concrete is not high, as long as can be fixedly attached on old concrete by left framework of steel reinforcement and right framework of steel reinforcement can realize follow-up leak stopping.
Two left steel bar frameworks of rectangular in cross-section and two right steel bar frameworks, in can ensureing, the two ends of buried water stop are reliably connected with left framework of steel reinforcement and right framework of steel reinforcement respectively, and after building new concrete, moreover it is possible to guarantee the two ends of middle buried water stop and the bonding strength of two blocks of newly-laid concretes.
Left and right framework of steel reinforcement adopts plant anchor to be connected each through the lengths of rebar each stretched out with old concrete, and this attachment structure can effectively ensure that the connection reliability of new-old concrete.
Water expandable waterstop is pasted on old concrete surface by adhesive or is fixed by screws in the connected mode on old concrete surface, effectively water expandable waterstop can be positioned, in other words, when building novel concrete based on left framework of steel reinforcement and right framework of steel reinforcement, it is possible to prevent water expandable waterstop from misplacing.
Accompanying drawing illustrates:
Fig. 1 is the section structure schematic diagram of building expansion joint of the present invention anti-leakage structure.
Detailed description of the invention:
Below in conjunction with the drawings and specific embodiments, building expansion joint of the present invention anti-leakage structure is described in further detail:
In this embodiment, the left side in Fig. 1 is left direction of the present invention, and right side is right direction of the present invention；Bottom in Fig. 1 is the external surface of buildings of the present invention, is also the front portion of building, and front and back are thickness direction of the present invention；Fig. 1 is perpendicular to the length direction that paper direction inwards is original structure expansion joint of the present invention.
nullIn conjunction with Fig. 1，Old concrete 32 that building expansion joint of the present invention anti-leakage structure includes being arranged in both sides, original structure expansion joint and the sealing material 30 being contained in old concrete 32 and in bury water band 31，Also include encapsulant 20、Upstream face packing material 21、Middle buried water stop 22、Back side packing material 23 and by the left framework of steel reinforcement of some reinforcing bar bindings and right framework of steel reinforcement，Left framework of steel reinforcement and right framework of steel reinforcement are symmetricly set on the left and right sides at original structure expansion joint，And all fixing with old concrete 32 be connected，Left、Water expandable waterstop 16 it is equipped with between right framework of steel reinforcement and old concrete 32，Water expandable waterstop 16 is arranged along original structure expansion joint length direction，Left framework of steel reinforcement is provided with two concordant and that cross section is all rectangular left steel bar frameworks 11 before and after side, original structure expansion joint，Left installation cavity 10 is formed between two left steel bar frameworks 11，Right framework of steel reinforcement is provided with two concordant and that cross section is all rectangular right steel bar frameworks 5 before and after side, original structure expansion joint，Right installation cavity 6 is formed between two right steel bar frameworks 5，Two left steel bar frameworks 11 and two right steel bar frameworks 5 are symmetrical，The left part of middle buried water stop 22 and right part are attached separately in left installation cavity 10 and right installation cavity 6，Middle buried water stop 22 with in bury water band 31 and align，Respectively with a left side、Left novel concrete 14 and right novel concrete 2 is built based on right framework of steel reinforcement，The intensity of left novel concrete 14 and right novel concrete 2 is not less than the intensity of old concrete 32，The thickness of left novel concrete 14 and right novel concrete 2 all at least 200mm，Preferred value is 300mm，Width is 500mm all at least，Preferred value is 600mm，Back side packing material 23 withstands between middle buried water stop 22 and sealing material 30，Encapsulant 20 is between left novel concrete 14 and right novel concrete 2，And left novel concrete 14、The outer surface flush of encapsulant 20 and right novel concrete 2 three，Upstream face packing material 21 withstands between encapsulant 20 and middle buried water stop 22.
Left framework of steel reinforcement described above is formed by some orthogonal first X-axis reinforcing bar the 15, first Y-axis reinforcing bars 12 and the first Z axis reinforcing bar 13 colligation, concrete row, columns or the number that first X-axis reinforcing bar the 15, first Y-axis reinforcing bar 12 and the first Z axis reinforcing bar 13 adopt can need to be calculated by formula according to intensity, and its computational methods are conventional prior；Right framework of steel reinforcement is formed by some orthogonal second X-axis reinforcing bar the 4, second Y-axis reinforcing bars 1 and the second Z axis reinforcing bar 3 colligation, concrete row, columns or the number that second X-axis reinforcing bar the 4, second Y-axis reinforcing bar 1 and the second Z axis reinforcing bar 3 adopt can need to be calculated by formula according to intensity, and its computational methods are conventional prior.When the some first Y-axis reinforcing bars 12 of colligation, make its rear portion continue framework of steel reinforcement rear portion to the left to extend, form some lengths of rebar, in like manner, during the some second Y-axis reinforcing bar 1 of colligation, also make its rear portion continue framework of steel reinforcement rear portion to the right and extend, form some lengths of rebar, the method that each lengths of rebar anchors after all adopting bar planting is fixedly connected on old concrete 32, and after bar planting, the method for attachment of anchoring is conventional prior.
In this embodiment, described middle buried water stop 22 can adopt steel plate water stopper, it would however also be possible to employ rubber fastening band.According to steel plate water stopper, then by the reinforcement welding of its left part with left installation cavity 10 antetheca or rear wall, by the reinforcement welding of its right part with right installation cavity 6 antetheca or rear wall；If employing rubber fastening band, then by its left part by iron wire colligation on the reinforcing bar of left installation cavity 10 antetheca or rear wall, by its right part by iron wire colligation right installation cavity 6 antetheca or rear wall reinforcing bar on.Described water expandable waterstop 16 can be pasted on old concrete 32 surface by adhesive, can also be fixed by screws on old concrete 32 surface, water expandable waterstop 16 is rubber water-proof bar, after left novel concrete 14 and right novel concrete 2 are built, water expandable waterstop 16 is just covered by left novel concrete 14 and right novel concrete 2 and be pressed against it, be equivalent to be positioned at newly-laid concrete, it will not with extraneous contact, therefore not easily aging or corrosion, just because water expandable waterstop 16 be press against by newly-laid concrete, therefore the sealing between new-old concrete is very good.
Left framework of steel reinforcement that the present invention configures in left novel concrete 14 and right novel concrete 2 and right framework of steel reinforcement are effectively increased bearing capacity and the cracking resistance of self of newly-laid concrete.Before building left novel concrete 14 and right novel concrete 2, need the surface of old concrete 32 is carried out dabbing cleaning, old concrete 32 after dabbing cleaning can effectively extend the infiltration route at new-old concrete interface plus water expandable waterstop 16, solve the sealing problem of new-old concrete interface construction seam, and this kind of technical scheme is relatively low to the flatness requirement of old concrete 32.The encapsulant 20 that arranges between left novel concrete 14 and right novel concrete 2, upstream face packing material 21, middle buried water stop 22, the water expandable waterstop 16 that arranges between back side packing material 23 and new-old concrete are collectively forming the sealing system at a newly-laid concrete expansion joint, solve antiseep problem.
Embodiment described above is only that the preferred embodiment of the present invention is described; not the scope of the present invention is defined; under the premise designing spirit without departing from the present invention; the various improvement that technical scheme is made by those of ordinary skill in the art, all should fall in the protection domain that claims of the present invention is determined.
Claims (6)
- null1. a building expansion joint anti-leakage structure，Including be arranged in both sides, original structure expansion joint old concrete (32) and be contained in old concrete (32) sealing material (30) and in bury water band (31)，It is characterized in that: also include encapsulant (20)、Upstream face packing material (21)、Middle buried water stop (22)、Back side packing material (23) and by the left framework of steel reinforcement of some reinforcing bar bindings and right framework of steel reinforcement，Left、Right framework of steel reinforcement is symmetricly set on the left and right sides at original structure expansion joint，And all fixing with old concrete (32) be connected，Left、Water expandable waterstop (16) is all had between right framework of steel reinforcement and old concrete (32)，Water expandable waterstop (16) is arranged along original structure expansion joint length direction，Left framework of steel reinforcement is provided with two concordant and that cross section is all rectangular left steel bar frameworks (11) before and after side, original structure expansion joint，Left installation cavity (10) is formed between two left steel bar frameworks (11)，Right framework of steel reinforcement is provided with two concordant and that cross section is all rectangular right steel bar frameworks (5) before and after side, original structure expansion joint，Right installation cavity (6) is formed between two right steel bar frameworks (5)，Two left steel bar frameworks (11) are symmetrical with two right steel bar frameworks (5)，The left part of middle buried water stop (22) and right part are attached separately in left installation cavity (10) and right installation cavity (6)，Middle buried water stop (22) with in bury water band (31) and align，Respectively with a left side、Left novel concrete (14) and right novel concrete (2) is built based on right framework of steel reinforcement，Back side packing material (23) withstands between middle buried water stop (22) and sealing material (30)，Encapsulant (20) is positioned at a left side、Between right novel concrete and three's outer surface flush，Upstream face packing material (21) withstands between encapsulant (20) and middle buried water stop (22).
- 2. building expansion joint according to claim 1 anti-leakage structure, it is characterised in that: being all extended with some lengths of rebar on described left and right framework of steel reinforcement, the method that each lengths of rebar anchors after all adopting bar planting is fixedly connected on old concrete (32).
- 3. building expansion joint according to claim 1 and 2 anti-leakage structure, it is characterized in that: the intensity of described left and right novel concrete is not less than the intensity of old concrete (32), the thickness of described left and right novel concrete all at least 200mm, width is 500mm all at least.
- 4. building expansion joint according to claim 3 anti-leakage structure, it is characterised in that: described middle buried water stop (22) is steel plate water stopper or rubber fastening band.
- 5. building expansion joint according to claim 4 anti-leakage structure, it is characterised in that: described water expandable waterstop (16) is pasted on old concrete (32) surface by adhesive or is fixed by screws on old concrete (32) surface.
- 6. building expansion joint according to claim 5 anti-leakage structure, it is characterised in that: described water expandable waterstop (16) is rubber water-proof bar.
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| CN201610284781.0A CN105780940B (en) | 2016-04-28 | 2016-04-28 | building expansion joint anti-leakage structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107859187A (en) * | 2017-10-11 | 2018-03-30 | 中铁第四勘察设计院集团有限公司 | The protection device and waterstop installation method of a kind of expansion joint water stop |
| CN114382326A (en) * | 2022-01-07 | 2022-04-22 | 四川恒高新型建材有限公司 | Comprehensive treatment system method for water leakage of hydropower station workshop |
| CN114875975A (en) * | 2022-04-18 | 2022-08-09 | 中铁第四勘察设计院集团有限公司 | Construction joint waterproof structure with reserved groove of compression sealing water stop strip and construction method thereof |
| CN115030585A (en) * | 2022-06-30 | 2022-09-09 | 成都建工第二建筑工程有限公司 | Construction structure and method for initiating seam of ultra-long water pool structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114875975A (en) * | 2022-04-18 | 2022-08-09 | 中铁第四勘察设计院集团有限公司 | Construction joint waterproof structure with reserved groove of compression sealing water stop strip and construction method thereof |
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| CN115030585A (en) * | 2022-06-30 | 2022-09-09 | 成都建工第二建筑工程有限公司 | Construction structure and method for initiating seam of ultra-long water pool structure |
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| Publication number | Publication date |
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| CN105780940B (en) | 2018-02-09 |
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