CN109024704A - A kind of staged expansion reinforcing band system and construction method - Google Patents
A kind of staged expansion reinforcing band system and construction method Download PDFInfo
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- CN109024704A CN109024704A CN201810872712.0A CN201810872712A CN109024704A CN 109024704 A CN109024704 A CN 109024704A CN 201810872712 A CN201810872712 A CN 201810872712A CN 109024704 A CN109024704 A CN 109024704A
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- reinforcing band
- expansion reinforcing
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
A kind of staged expansion reinforcing band system and construction method, including concrete bottom die, the upper end of the concrete bottom die has poured concrete substrate, top perforated rebar and lower part perforated rebar are embedded in the concrete substrate, expansion reinforcing band is equipped in the concrete substrate, expansive concrete is poured after being cast in the expansion reinforcing band, the section that the expansion reinforcing band is is that slope is ladder-like, and expansion reinforcing band two sidewalls fittings is equipped with stepped steel wire, steel wire described in two sides is fixedly connected to the vertical reinforced steel of staged, structure of the invention is simple, construction method is concise, it is easy to operate, the construction of expanded post-cast zone in most concretings can be effectively used in, solve the problems, such as overlength component cracking and the infiltration of construction joint region, construction quality is ensured, it is needed after avoiding simultaneously Rework step has saved engineering cost, accelerates construction speed.
Description
Technical field
The present invention relates to technical field of building construction, specially a kind of staged expansion reinforcing band system and construction method.
Background technique
In recent years, with the diversified development of building trade, Structural Design is more and more novel, overlength knot in city
The building of structure, large chassis multi-tower type structure or body irregular structure continues to bring out, and especially has particular/special requirement to underground waterproof
Overlarge area hypogee emergence.
Most of structure design has Construction Later Casting Zone, to solve the problems, such as the shrinkage cracking of concrete.
But percolating water easily occurs for post-cast strip position, brings hidden danger to the normal use of building.In main body construction
Indwelling time is longer, and curing water and construction rubbish are extremely serious to steel bar corrosion during this period, cleaning work before casting and at
Product protect difficulty larger.
In construction, due to the dismounting of template, the beam slab of post-cast strip two sides becomes cantilever member, disagrees with design idea
Back；Under entirely, superstructure, place of arrival meets the disconnected beam of beam, meets the disconnected plate of plate for post-cast strip, brings many inconvenience to construction,
Influence construction speed.
Before post-cast strip fills concrete, two sides concrete dabbing need to be constructed extremely difficult, and certain structures concrete
With the post-cast strip concreting time interval several months, the adhesion strength of New-old concrete it is difficult to ensure that, and due to pouring the time difference,
Cause the drying shrinkage of the concrete of these structures is most of to complete before post-cast strip fills；Therefore, the drying shrinkage of post-cast strip concrete
Easily crack is generated in the junction of New-old concrete；The original intention that Construction Later Casting Zone is arranged is the generation of crack preventing,
It then pours that tape handling is bad but artificially to cause two through cracks at every post-cast strip, causes leak.
Summary of the invention
It is an object of the invention to solve overlength component cracking mentioned above in the background art and the infiltration of construction joint region
The problem of；
To achieve the above object, the present invention provides a kind of staged expansion reinforcing band system and construction method:
A kind of staged expansion reinforcing band system, including concrete bottom die, the upper end of the concrete bottom die have poured mixed
Soil matrix body is coagulated, top perforated rebar and lower part perforated rebar is embedded in the concrete substrate, is set in the concrete substrate
There is expansion reinforcing band, expansive concrete is poured after being cast in the expansion reinforcing band, the section that the expansion reinforcing band is is oblique
Slope is ladder-like, and expansion reinforcing band two sidewalls fittings is equipped with stepped steel wire, and steel wire described in two sides is fixed
Be connected with the vertical reinforced steel of staged, the upper and lower ends of the expansion reinforcing band be respectively equipped with top additional bar and under
Portion's additional bar.
Preferably, expansion water-stop band is provided at the inner corner trim of the expansion reinforcing band.
Preferably, the top additional bar, lower part additional bar, the vertical reinforced steel of staged and steel wire mutually weld
It connects, bind.
Preferably, the vertical reinforced steel of the staged is A16@250mm reinforcing bar.
Preferably, the cross-sectional width of the expansion reinforcing band is 800mm.
Preferably, the structure of the expansion reinforcing band and steel wire is two-stage slope hierarchic structure, and wherein junior's ladder is wide
Degree is 350mm.
Preferably, the lower part additional bar and top additional bar area Ast/2.
Preferably, the steel wire is the steel wire of mesh size 5mm × 5mm.
Preferably, it is poured after described in expansive concrete added with SY-G composite fibre antimitotic agent.
A kind of construction method of staged expansion reinforcing band system, comprising the following steps:
Step 1 is laid with concrete bottom die；
Step 2, the biggish position of temperature shrinkage stress is respectively along structures vertical, horizontal every 35m in concrete substrate
Expansion reinforcing band is set, and the cross-sectional width of expansion reinforcing band is 800mm, and expansion reinforcing band contacts transversal with concrete substrate
Face is slope stepped construction；
Step 3 is respectively set the stepped steel wire in one of slope in the two sides of expansion reinforcing band position and is isolated,
It is reinforced in the steps reinforcing bar that an A16@250mm is respectively set in the position of steel wire, the upper and lower end point of expansion reinforcing band
Not She Zhi top additional bar and lower part additional bar, and by top additional bar and lower part additional bar, it is stepped vertical plus
Gu reinforcing bar, steel wire are welded to each other, bind securely, avoid being washed open in casting process by concrete, in the inner corner trim of expansion reinforcing band
Place's setting expansion water-stop band, carries out thickening processing to concrete bottom die；
Step 4, installation template, bolt and preserved pipeline；
Step 5 is poured swollen after the concrete substrate curing strength poured reaches 1.2MP after interior expansion reinforcing band pours
Swollen concrete avoids generating construction joint；
Step 6, pours expansive concrete after maintenance, water storage after timely plastic covering film conserves 14 days in water.
It is compared with prior art, the present invention having the following advantages and benefits:
1) the staged expansion reinforcing band system uses stepped construction by expansion reinforcing band and steel wire reinforcing strip,
The contact area between protocorm and rear pouring concrete can be increased, increase the bonding between their correlations, cooperated at inner corner trim
Waterstop can effectively take precautions against the seepage problem in overlength component cracking and construction joint region.
2) the staged expansion reinforcing band system pours addition SY-G composite fibre antimitotic agent in expansive concrete after,
Concrete minimum expansion rate is 0.015, mixes composite fibre toughener, expansive concrete minimum limited expansion rate is poured after making
0.025%, the contraction of concrete is compensated for, prevention and treatment distress in concrete is reached, improves the purpose of concrete performance.
3) the staged expansion reinforcing band system, is vertically reinforced by top additional bar, lower part additional bar, staged
Reinforcing bar and steel wire are welded to each other and bind, and can reinforce expansion reinforcing band, and avoid being washed open in casting process by concrete.
Structure of the invention is simple, and construction method is concise, easy to operate, can effectively be used in most concrete
The construction for pouring middle expanded post-cast zone solves the problems, such as overlength component cracking and the infiltration of construction joint region, has ensured construction matter
Amount, while the rework step needed after avoiding, have saved engineering cost, have accelerated construction speed.
Detailed description of the invention
Fig. 1 is expansion reinforcing band structural schematic diagram of the invention；
Fig. 2 is wall expansion reinforcing band structural schematic diagram of the invention；
Fig. 3 is beam expansion reinforcing band structural schematic diagram of the invention；
In figure: pouring expansive concrete, 6 behind 1 concrete substrate, 2 expansion reinforcing bands, 3 steel wires, 4 top perforated rebars, 5
Top additional bar, 7 lower part additional bars, 8 concrete bottom dies, 9 lower part perforated rebars, 10 expansion water-stop bands, 11 waterproof rolls,
12 brick molds, 13 stirrups.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
With reference to the accompanying drawing and specific embodiment is further described application principle of the invention.
Embodiment one
A kind of staged expansion reinforcing band system as shown in Figure 1, including concrete bottom die, the concrete bottom die it is upper
End has poured concrete substrate, and top perforated rebar and lower part perforated rebar, the coagulation are embedded in the concrete substrate
It is equipped with expansion reinforcing band in soil matrix body, pours expansive concrete after being cast in the expansion reinforcing band, the expansion reinforcing band is
Section be that slope is ladder-like, and expansion reinforcing band two sidewalls fitting is equipped with stepped steel wire, steel described in two sides
Silk screen is fixedly connected to the vertical reinforced steel of staged, and it is attached that the upper and lower ends of the expansion reinforcing band are respectively equipped with top
Add reinforcing bar and lower part additional bar.
Wherein, expansion water-stop band is provided at the inner corner trim of the expansion reinforcing band, the top additional bar, lower part are additional
The vertical reinforced steel of reinforcing bar, staged and steel wire are welded to each other, bind, and the vertical reinforced steel of staged is A16@
250mm reinforcing bar, the cross-sectional width of the expansion reinforcing band are 800mm, and the structure of the expansion reinforcing band and steel wire is two
Grade slope hierarchic structure, wherein junior's ladder width is 350mm, the lower part additional bar and top additional bar area
Ast/2, the steel wire are the steel wire of mesh size 5mm × 5mm, are poured in expansive concrete after described added with SY-G
Composite fibre antimitotic agent.
A kind of construction method of staged expansion reinforcing band system, comprising the following steps:
Step 1 is laid with concrete bottom die；
Step 2, the biggish position of temperature shrinkage stress is respectively along structures vertical, horizontal every 35m in concrete substrate
Expansion reinforcing band is set, and the cross-sectional width of expansion reinforcing band is 800mm, and expansion reinforcing band contacts transversal with concrete substrate
Face is slope stepped construction；
Step 3 is respectively set the stepped steel wire in one of slope in the two sides of expansion reinforcing band position and is isolated,
It is reinforced in the steps reinforcing bar that an A16@250mm is respectively set in the position of steel wire, the upper and lower end point of expansion reinforcing band
Not She Zhi top additional bar and lower part additional bar, and by top additional bar and lower part additional bar, it is stepped vertical plus
Gu reinforcing bar, steel wire are welded to each other, bind securely, avoid being washed open in casting process by concrete, in the inner corner trim of expansion reinforcing band
Place's setting expansion water-stop band, carries out thickening processing to concrete bottom die；
Step 4, installation template, bolt and preserved pipeline；
Step 5 is poured swollen after the concrete substrate curing strength poured reaches 1.2MP after interior expansion reinforcing band pours
Swollen concrete avoids generating construction joint；
Step 6, pours expansive concrete after maintenance, water storage after timely plastic covering film conserves 14 days in water.
Embodiment two
Wall expansion reinforcing band system as described in Figure 2, construction method the following steps are included:
Step 1, substrate cleaning；
Step 2, in concrete substrate 1 the biggish position of temperature shrinkage stress respectively along structures vertical, horizontal every
Expansion reinforcing band 2 is arranged in 35m, and the cross-sectional width of expansion reinforcing band 2 is 800mm, and expansion reinforcing band 2 connects with concrete substrate 1
The cross section of touching is slope stepped construction；
Step 3, the two sides of 2 position of expansion reinforcing band be respectively set the stepped steel wire 3 in one of slope carry out every
From being reinforced in the steps reinforcing bar that an A16@250mm is respectively set in the position of steel wire 3, the inside of expansion reinforcing band 2
Top additional bar 7 is set, and additional bar 7, stepped vertical reinforced steel, steel wire 3 are welded to each other, bound securely,
It avoids being washed open in casting process by concrete, expansion water-stop band 10 is set at the inner corner trim of expansion reinforcing band 2；
Step 4, installation template, bolt and preserved pipeline；
Step 5, after 1 curing strength of concrete substrate poured reaches 1.2MP, reinforcing strip position upstream face is laid with anti-
Water coiled material 11, and build brick mold 12 in the lateral wall of waterproof roll 11, brick mold 12 with a thickness of 120mm, reinforce in expansion
Band 2 pours expansive concrete 5, avoids generating construction joint；
Step 6 pours rear sprinkling maintenance expansive concrete 5, conserves 14 days.
Embodiment three
Beam expansion reinforcing band system as described in Figure 3, construction method specifically includes the following steps:
Step 1, substrate cleaning；
Step 2, in concrete substrate 1 the biggish position of temperature shrinkage stress respectively along structures vertical, horizontal every
Expansion reinforcing band 2 is arranged in 35m, and the cross-sectional width of expansion reinforcing band 2 is 800mm, and expansion reinforcing band 2 connects with concrete substrate 1
The cross section of touching is slope stepped construction；
Step 3, the two sides of 2 position of expansion reinforcing band be respectively set the stepped steel wire 3 in one of slope carry out every
From being reinforced in the steps reinforcing bar that an A16@250mm is respectively set in the position of steel wire 3, the inside of expansion reinforcing band 2
Top additional bar 7 is set, and additional bar 7, stepped vertical reinforced steel, steel wire 3 are welded to each other, bound securely,
Reinforcing strip position two sides add 4 stirrups 13, add 8 stirrups 13 altogether, and the distribution spacing of stirrup 13 is generally 50, diameter and
Strength grade is the same as other normal stirrups on beam.It avoids being washed open in casting process by concrete, be set at the inner corner trim of expansion reinforcing band 2
Set expansion water-stop band 10；
Step 4 installs bolt and preserved pipeline；
Step 5 pours expansion coagulation in expansion reinforcing band 2 after 1 curing strength of concrete substrate poured reaches 1.2MP
Soil 5 avoids generating construction joint；
Step 6 carries out film covering, sprinkling maintenance expansive concrete 5 after pouring, conserve 14 days.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including institute
State in the process, method, article or equipment of element that there is also other identical elements.
The above is made skilled artisans appreciate that or realizing this hair in specific embodiment party of the invention
It is bright.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. the upper end of a kind of staged expansion reinforcing band system, including concrete bottom die (8), the concrete bottom die (8) pours
Have concrete substrate (1), is embedded with top perforated rebar (4) and lower part perforated rebar (9), institute in the concrete substrate (1)
It states in concrete substrate (1) and is equipped with expansion reinforcing band (2), pour expansive concrete after being cast in the expansion reinforcing band (2)
(5), which is characterized in that the section that the expansion reinforcing band (2) is is that slope is ladder-like, and the expansion reinforcing band (2) two sides
Wall fitting is equipped with stepped steel wire (3), and steel wire (3) described in two sides is fixedly connected to a staged and vertically reinforces
Reinforcing bar, the upper and lower ends of the expansion reinforcing band (2) are respectively equipped with top additional bar (6) and lower part additional bar (7).
2. a kind of staged expansion reinforcing band system according to claim 1, which is characterized in that the expansion reinforcing band
(2) expansion water-stop band (10) are provided at inner corner trim.
3. a kind of staged expansion reinforcing band system according to claim 1, which is characterized in that the top additional bar
(6), lower part additional bar (7), the vertical reinforced steel of staged and steel wire (3) are welded to each other, bind.
4. a kind of staged expansion reinforcing band system according to claim 1, which is characterized in that the staged vertically adds
Gu reinforcing bar is A16@250mm reinforcing bar.
5. a kind of staged expansion reinforcing band system according to claim 1, which is characterized in that the expansion reinforcing band
(2) cross-sectional width is 800mm.
6. a kind of staged expansion reinforcing band system according to claim 1, which is characterized in that the expansion reinforcing band
(2) and the structure of steel wire (3) is two-stage slope hierarchic structure, and wherein junior's ladder width is 350mm.
7. a kind of staged expansion reinforcing band system according to claim 1, which is characterized in that the lower part additional bar
(6) and top additional bar (7) area Ast/2.
8. a kind of staged expansion reinforcing band system according to claim 1, which is characterized in that the steel wire (3)
For the steel wire of mesh size 5mm × 5mm.
9. a kind of staged expansion reinforcing band system according to claim 1, which is characterized in that pour swelled mixture after described
SY-G composite fibre antimitotic agent is added in solidifying soil (5).
10. a kind of construction method of staged expansion reinforcing band system described in any one according to claim 1~9, special
Sign is, comprising the following steps:
Step 1 is laid with concrete bottom die (8)；
Step 2, the biggish position of temperature shrinkage stress is respectively along structures vertical, horizontal every 35m in concrete substrate (1)
It is arranged expansion reinforcing band (2), the cross-sectional width of expansion reinforcing band (2) is 800mm, expansion reinforcing band (2) and concrete substrate
(1) cross section contacted is slope stepped construction；
Step 3, the two sides of expansion reinforcing band (2) position be respectively set the stepped steel wire in one of slope (3) carry out every
From, it is reinforced in the steps reinforcing bar that an A16@250mm is respectively set in the position of steel wire (3), expansion reinforcing band (2)
Top additional bar (6) and lower part additional bar (7) is respectively set in upper and lower end, and top additional bar (6) and lower part is additional
Reinforcing bar (7), stepped vertical reinforced steel, steel wire (3) are welded to each other, bind securely, avoid in casting process by concrete
It washes open, expansion water-stop band (10) is set at the inner corner trim of expansion reinforcing band (2), thickening processing is carried out to concrete bottom die (8)；
Step 4, installation template, bolt and preserved pipeline；
Step 5 is poured after interior expansion reinforcing band (2) pours after concrete substrate (1) curing strength poured reaches 1.2MP
Expansive concrete (5) avoids generating construction joint；
Step 6 is poured expansive concrete (5) after maintenance, water storage after timely plastic covering film, is conserved 14 days in water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810872712.0A CN109024704A (en) | 2018-08-02 | 2018-08-02 | A kind of staged expansion reinforcing band system and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810872712.0A CN109024704A (en) | 2018-08-02 | 2018-08-02 | A kind of staged expansion reinforcing band system and construction method |
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| CN109024704A true CN109024704A (en) | 2018-12-18 |
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| CN201810872712.0A Pending CN109024704A (en) | 2018-08-02 | 2018-08-02 | A kind of staged expansion reinforcing band system and construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110284717A (en) * | 2019-04-24 | 2019-09-27 | 中国一冶集团有限公司 | Super-long-and-Large-area is seamless concrete construction method |
| CN112160346A (en) * | 2020-09-23 | 2021-01-01 | 江苏凯伦建材股份有限公司 | Bottom plate post-cast strip structure and construction method |
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| CN102116092A (en) * | 2009-12-30 | 2011-07-06 | 中冶成工上海五冶建设有限公司 | Method for constructing reinforcing band for compensating contraction of concrete and preventing cracks |
| CN102351501A (en) * | 2011-07-04 | 2012-02-15 | 武汉理工大学 | Cement-based grouting material and preparation method thereof |
| CN203531154U (en) * | 2013-06-18 | 2014-04-09 | 浙江海天建设集团有限公司 | Intermittent reinforcing band system used for continuously pouring concrete |
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| CN102116092A (en) * | 2009-12-30 | 2011-07-06 | 中冶成工上海五冶建设有限公司 | Method for constructing reinforcing band for compensating contraction of concrete and preventing cracks |
| CN102351501A (en) * | 2011-07-04 | 2012-02-15 | 武汉理工大学 | Cement-based grouting material and preparation method thereof |
| CN203531154U (en) * | 2013-06-18 | 2014-04-09 | 浙江海天建设集团有限公司 | Intermittent reinforcing band system used for continuously pouring concrete |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284717A (en) * | 2019-04-24 | 2019-09-27 | 中国一冶集团有限公司 | Super-long-and-Large-area is seamless concrete construction method |
| CN112160346A (en) * | 2020-09-23 | 2021-01-01 | 江苏凯伦建材股份有限公司 | Bottom plate post-cast strip structure and construction method |
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Application publication date: 20181218 |