CN112709261A - Construction method based on skip method and intermittent expansion reinforcing belt - Google Patents
Construction method based on skip method and intermittent expansion reinforcing belt Download PDFInfo
- Publication number
- CN112709261A CN112709261A CN202011533402.XA CN202011533402A CN112709261A CN 112709261 A CN112709261 A CN 112709261A CN 202011533402 A CN202011533402 A CN 202011533402A CN 112709261 A CN112709261 A CN 112709261A
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- Prior art keywords
- pouring
- expansion reinforcing
- area
- intermittent expansion
- pouring area
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Classifications
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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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
Abstract
The invention provides a construction method based on a skip method and an intermittent expansion reinforcing band, which comprises the following steps: dividing a pouring area, and setting a pouring sequence of the pouring area; finishing the pouring of a first pouring area, then dividing an intermittent expansion reinforcing belt into a backward pouring area by taking the boundary of the first pouring area close to the backward pouring area as a reference, and arranging a dense-hole steel wire mesh between the intermittent expansion reinforcing belt and the backward pouring area; when the rear pouring area is poured, pouring is carried out from the side far away from the dense-hole steel wire mesh to the area close to the dense-hole steel wire mesh; after the post-pouring area is poured, immediately pouring the intermittent expansion reinforcing belt, wherein the concrete used for pouring the post-pouring area is compensation shrinkage concrete with the strength higher than the original design strength by one mark; and carrying out moisture curing on the intermittent expansion reinforcing belt. Based on the application of the cabin jumping method, a temperature post-cast strip is cancelled, and the leakage hidden danger at the construction joint is reduced.
Description
Technical Field
The invention relates to the technical field of construction, in particular to a construction method based on a skip method and an intermittent expansion reinforcing belt.
Background
Currently, the most common residential structure is generally one to two underground garages, and the main building is divided into three to four rows and distributed in the garage range. The simple structure of following, the settlement rate difference in main building and garage, for solving this kind of settlement difference, can set up the post-cast strip that subsides of round in the design around the main building. The garage between the main building and the main building still belongs to an overlong structure, and in order to solve the problem that the overlong structure of the garage cracks due to expansion and contraction, a temperature post-pouring belt is arranged according to the principle of every 30-40 meters in design, and the garage is divided into a plurality of blocks.
According to the conventional garage construction, a temperature post-cast strip is given according to the design and serves as the basis for dividing the garage construction section, a block of garage is poured orderly, and the temperature post-cast strip is closed after 2 months.
In the construction process, the post-cast strip cannot be closed for a long time, and special protection is needed, so that the arrangement, material stacking and transportation of the whole field area on the garage are influenced; if the protection is not in place, water is easy to accumulate in the post-cast strip, garbage is accumulated in the post-cast strip, and the steel bars are corroded.
The post-cast strip must be thoroughly roughened and cleaned before pouring, and the post-cast strip is extremely easy to become a leakage point and a structural potential safety hazard due to the fact that steel bars are dense and the roughening and cleaning are extremely difficult.
The post-cast strip changes the stress state of the structure, the structural slab is in a cantilever state, the formwork supports supporting the floor slab at two sides cannot be detached for a long time, normal turnover is influenced, the cost is increased, meanwhile, the stacking transportation of underground materials and the advance entering of construction are influenced, and the vertical crossing operation cannot be carried out.
Disclosure of Invention
The invention provides a construction method based on a skip method and an intermittent expansion reinforcing band, aiming at the technical problems in the prior art, and based on the application of the skip method, the reservation of a post-temperature casting band is cancelled, and the leakage hidden danger at the construction joint is reduced.
The technical scheme for solving the technical problems is as follows: a construction method based on a skip method and an intermittent expansion reinforcing band comprises the following steps:
dividing at least two pouring areas, and setting a pouring sequence of the pouring areas;
step two, according to the pouring sequence set in the step one, pouring of a first pouring area is completed, then an intermittent expansion reinforcing band is defined towards the backward pouring area by taking the boundary of the first pouring area close to the backward pouring area as a reference, a construction joint is reserved between the first pouring area and the intermittent expansion reinforcing band, a water stop band vertical to the construction joint is arranged in the middle of the construction joint, and a dense-hole steel wire mesh is arranged between the intermittent expansion reinforcing band and the backward pouring area;
step three, when the rear pouring area is poured, pouring is carried out from the side far away from the dense-hole steel wire mesh to the area close to the dense-hole steel wire mesh;
step four, after the pouring of the post-pouring area is finished, pouring the intermittent expansion reinforcing belt immediately, wherein concrete used for pouring the post-pouring area is compensation shrinkage concrete with strength higher than the original design strength by one mark;
and step five, carrying out moisture curing on the intermittent expansion reinforcing belt, wherein the curing period is not less than 14 days.
Preferably, the expansion ratio of the concrete used for the intermittent expansion reinforcing band is not less than 0.025%.
Preferably, the intermittently expandable reinforcing band has a width of 2 m.
Preferably, the water stop is a steel plate.
Preferably, the length of the water stop is greater than the width of the construction joint.
The invention has the beneficial effects that: the invention provides a construction method based on a skip method and an intermittent expansion reinforcing band. The construction quality of the concrete can be guaranteed, the good compactness of the concrete is realized, and the aim of self-waterproofing of the structure is fulfilled.
Detailed Description
The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
The embodiment discloses a construction method based on a skip method and an intermittent expansion reinforcing band, which comprises the following steps:
dividing at least two pouring areas, and setting a pouring sequence of the pouring areas; according to the pouring sequence of the cabin skipping method, early-stage pouring is carried out through the cabin skipping method, the early-stage pouring area is a previous pouring area, and the rest non-pouring area is a later pouring area.
Step two, according to the pouring sequence set in the step one, pouring of a first pouring area is completed, then an intermittent expansion reinforcing band is defined towards the backward pouring area by taking the boundary of the first pouring area close to the backward pouring area as a reference, in the embodiment, the intermittent expansion reinforcing band is set to be 2 meters, a construction joint is reserved between the first pouring area and the intermittent expansion reinforcing band, a water stop band perpendicular to the construction joint is arranged in the middle of the construction joint and used for preventing the construction joint from leaking, the water stop band can be of a steel plate structure and the like, the length of the water stop band is greater than the width of the construction joint, and the situation that the middle of the construction joint is not cut off to cause leakage is avoided; and a dense-hole steel wire mesh is arranged between the intermittent expansion reinforcing belt and the post-pouring area and used for isolating the intermittent expansion reinforcing belt from the post-pouring area, so that concrete is prevented from entering the intermittent expansion reinforcing belt when the post-pouring area is poured.
Step three, when the rear pouring area is poured, pouring is carried out from the side far away from the dense-hole steel wire mesh to the area close to the dense-hole steel wire mesh; i.e. sequential casting from the more distal to the more proximal end of the intermittently expanding reinforcing strip.
And step four, after the post-pouring area is poured, immediately pouring the intermittent expansion reinforcing belt, wherein the concrete used for pouring the post-pouring area is the compensation shrinkage concrete with the strength higher than the original design strength by one mark, and the expansion rate of the compensation shrinkage concrete is not less than 0.025%.
And step five, carrying out moisture curing on the intermittent expansion reinforcing belt, wherein the curing period is not less than 14 days.
In this embodiment, the surface of the pre-cast concrete should be cleaned of burrs and sufficiently wet. And after the shrinkage-compensating concrete is poured, carrying out moisture curing on the surface of the concrete exposed in the atmosphere in time, wherein the curing period is not less than 14 days. For the horizontal member, during normal temperature construction, the plastic film can be covered, and water can be sprayed regularly, and gunny bags can be laid wet. The bottom plate is preferably maintained by direct water storage. After the wall body is poured, the top end of the wall body can be provided with the porous water spraying pipe, and after the demolding strength is achieved, the split bolts can be loosened, so that a gap of 2-3 mm is formed between the outer side of the wall body and the template, and the water spraying pipe on the upper portion is ensured to enter the space between the template and the wall.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A construction method based on a skip method and an intermittent expansion reinforcing band is characterized by comprising the following steps:
dividing at least two pouring areas, and setting a pouring sequence of the pouring areas;
step two, according to the pouring sequence set in the step one, pouring of a first pouring area is completed, then an intermittent expansion reinforcing band is defined towards the backward pouring area by taking the boundary of the first pouring area close to the backward pouring area as a reference, a construction joint is reserved between the first pouring area and the intermittent expansion reinforcing band, a water stop band vertical to the construction joint is arranged in the middle of the construction joint, and a dense-hole steel wire mesh is arranged between the intermittent expansion reinforcing band and the backward pouring area;
step three, when the rear pouring area is poured, pouring is carried out from the side far away from the dense-hole steel wire mesh to the area close to the dense-hole steel wire mesh;
step four, after the pouring of the post-pouring area is finished, pouring the intermittent expansion reinforcing belt immediately, wherein concrete used for pouring the post-pouring area is compensation shrinkage concrete with strength higher than the original design strength by one mark;
and step five, carrying out moisture curing on the intermittent expansion reinforcing belt, wherein the curing period is not less than 14 days.
2. The construction method based on the skip warehouse method and the intermittent expansion reinforcing band according to claim 1, wherein the expansion rate of the concrete used for the intermittent expansion reinforcing band is not less than 0.025%.
3. The method of claim 1, wherein the intermittent expansion reinforcing band has a width of 2 m.
4. The method of claim 1, wherein the water stop is a steel plate.
5. The method of claim 4 wherein the length of the water stop is greater than the width of the construction joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011533402.XA CN112709261A (en) | 2020-12-22 | 2020-12-22 | Construction method based on skip method and intermittent expansion reinforcing belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011533402.XA CN112709261A (en) | 2020-12-22 | 2020-12-22 | Construction method based on skip method and intermittent expansion reinforcing belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112709261A true CN112709261A (en) | 2021-04-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011533402.XA Pending CN112709261A (en) | 2020-12-22 | 2020-12-22 | Construction method based on skip method and intermittent expansion reinforcing belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112709261A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251674A (en) * | 2011-06-05 | 2011-11-23 | 山东宁建建设集团有限公司 | Bunker-skipping type seamless construction method of ultra-long concrete structure |
| CN105569339A (en) * | 2015-12-31 | 2016-05-11 | 青建集团股份公司 | Super-long structure seamless construction method combining sequence with skip and combining intermittence with reinforcement |
| CN109306714A (en) * | 2018-08-13 | 2019-02-05 | 中国建筑第四工程局有限公司 | Jump the control distress in concrete construction method that storehouse method is combined with expansion reinforcing band |
-
2020
- 2020-12-22 CN CN202011533402.XA patent/CN112709261A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251674A (en) * | 2011-06-05 | 2011-11-23 | 山东宁建建设集团有限公司 | Bunker-skipping type seamless construction method of ultra-long concrete structure |
| CN105569339A (en) * | 2015-12-31 | 2016-05-11 | 青建集团股份公司 | Super-long structure seamless construction method combining sequence with skip and combining intermittence with reinforcement |
| CN109306714A (en) * | 2018-08-13 | 2019-02-05 | 中国建筑第四工程局有限公司 | Jump the control distress in concrete construction method that storehouse method is combined with expansion reinforcing band |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210427 |
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| RJ01 | Rejection of invention patent application after publication |