CN111851584A - Construction method of reinforced concrete frame structure column foundation enclosure beam in reverse construction method - Google Patents
Construction method of reinforced concrete frame structure column foundation enclosure beam in reverse construction method Download PDFInfo
- Publication number
- CN111851584A CN111851584A CN202010761594.3A CN202010761594A CN111851584A CN 111851584 A CN111851584 A CN 111851584A CN 202010761594 A CN202010761594 A CN 202010761594A CN 111851584 A CN111851584 A CN 111851584A
- Authority
- CN
- China
- Prior art keywords
- foundation
- reinforced concrete
- column
- construction method
- construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
- E02D29/05—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
- E02D29/055—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench further excavation of the cross-section proceeding underneath an already installed part of the structure, e.g. the roof of a tunnel
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Foundations (AREA)
Abstract
The invention discloses a construction method of a reinforced concrete frame structure column foundation enclosure beam in reverse construction, and mainly relates to the field of building construction. The construction method comprises the following steps: pouring or punching a central support column; carrying out ground cushion layer construction; roughening the surface of the support column, drilling along the radial direction of the support column, and implanting the inserted bar by a chemical bar-implanting process; processing the steel bars of the enclosure beam around the support columns, and paving the steel bars in the foundation; binding the enclosure beam and the steel bars in the foundation; and erecting a template, and pouring concrete to obtain the reinforced concrete enclosure beam. The invention has the beneficial effects that: and meanwhile, the reinforced concrete surrounding beam is additionally arranged on the periphery of the column, so that the effective connection between the foundation and the column is improved, and the effective transmission of the load from the column to the foundation is ensured.
Description
Technical Field
The invention relates to the field of building construction, in particular to a construction method of a reinforced concrete frame structure column foundation enclosing beam in reverse construction.
Background
When underground civil air defense engineering is constructed in special areas which cannot be excavated, reverse construction is generally adopted. The method comprises the steps of firstly constructing a structural frame column in a pile form, then sealing and excavating the ground for a short time, constructing a beam-slab structure of a top layer and backfilling, and recovering the current situation of the ground. After the strength of the structural concrete such as the beam-sheet pile meets the design requirement, excavating the earthwork below the board, and constructing the parts such as a foundation, a wall, a bottom board and the like. The reverse construction method can effectively shorten the construction period and reduce the influence on the surrounding environment. At present, the construction of the frame column independent foundation in the reverse construction method generally adopts the steps of manufacturing a steel plate sheath in the height area of the foundation of the column and welding the steel bar in the foundation with the steel plate sheath.
In the construction process, the gap between the rigid sheath and the column concrete is treated, so that great quality hidden danger exists; harmful gases generated by a large amount of welding operations in an underground closed area injure operators; a large number of welding operation workers are needed in a short time, the cost is high, the economic benefit is poor, the construction period is long, and the possibility of potential safety hazards is increased.
Disclosure of Invention
The invention aims to provide a reinforced concrete frame structure column foundation enclosing beam construction method in reverse construction, which is characterized in that a reinforced concrete enclosing beam is added at the periphery of a column, so that the effective connection between the foundation and the column is improved, and the effective transmission of load from the column to the foundation is ensured.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the construction method of the reinforced concrete frame structure column foundation enclosure beam in the reverse construction method comprises the following steps:
pouring or punching a central support column;
carrying out ground cushion layer construction;
roughening the surface of the support column, drilling along the radial direction of the support column, and implanting the inserted bar by a chemical bar-implanting process;
processing the steel bars of the enclosure beam around the support columns, and paving the steel bars in the foundation; (ii) a
Binding the enclosure beam and the steel bars in the foundation;
and erecting a template, and pouring concrete to obtain the reinforced concrete enclosure beam.
The support column is implanted with the dowel bars on the upper, middle and lower three interfaces, and the dowel bars implanted on each interface are 4 groups.
The reinforced concrete enclosure beam extends along the radial direction of the support column, and the inner end of the reinforced concrete enclosure beam penetrates through the outer end of the reinforced concrete enclosure beam.
Compared with the prior art, the invention has the beneficial effects that:
the connection mode of the column and the foundation is changed, a new construction method is created, steel sheaths are eliminated, part of steel bars in the foundation are rooted into the column concrete directly through a chemical bar planting process, and meanwhile, reinforced concrete surrounding beams are additionally arranged on the periphery of the column, so that the effective connection between the foundation and the column is improved, and the effective transmission of loads from the column to the foundation is guaranteed. Meanwhile, the construction cost is reduced, the construction progress is accelerated, and the air pollution condition caused by welding operation on a construction site is improved.
Drawings
Fig. 1 is a construction drawing of a reverse construction method in the background art of the present invention.
Fig. 2 is a construction drawing of reverse construction in the background art of the present invention.
Fig. 3 is a construction drawing of the reverse construction in the background art of the present invention.
FIG. 4 is a structural view of the construction of the method of the present invention.
Fig. 5 is a structural view of the reverse construction.
FIG. 6 is an interface diagram of the method of the present invention.
FIG. 7 is an interface diagram of a reverse construction.
Reference numerals shown in the drawings:
1. a central support column; 2. reinforcing steel bars in the foundation; 3. inserting ribs; 4. reinforcing steel bars of the enclosure beam; 5. the reinforced concrete encloses the roof beam.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
The instruments, reagents, materials and the like used in the following examples are conventional instruments, reagents, materials and the like in the prior art and are commercially available in a normal manner unless otherwise specified. Unless otherwise specified, the experimental methods, detection methods, and the like described in the following examples are conventional experimental methods, detection methods, and the like in the prior art.
The invention relates to a reinforced concrete frame structure column foundation enclosing beam construction method in reverse construction, which mainly comprises the following steps:
step 1, pouring or driving down a central support column 1;
and 6, erecting a template, and pouring concrete to obtain the reinforced concrete enclosure beam 5.
In the above steps, attention is also required in the construction:
1. the support column 1 is implanted with the dowels 3 on the upper, middle and lower three interfaces, and the dowels 3 implanted on each interface are 4 groups.
2. The reinforced concrete enclosure beam 5 extends along the radial direction of the support column 1, and the inner end of the reinforced concrete enclosure beam 5 penetrates through the outer end of the reinforced concrete enclosure beam.
Through the construction method, the surface of the column is chiseled, the reinforced concrete enclosure beam 5 is additionally arranged on the periphery of the column, and the upper load can be effectively transmitted to the foundation from the column. The foundation steel bars are anchored in the newly added reinforced concrete beam or anchored in the column by adopting a chemical bar planting process.
1. Improving the effectiveness of load transfer from the column to the foundation;
2. construction progress is effectively improved, and economic benefits are improved;
3. the potential safety hazard during construction is effectively reduced, the construction site environment is improved, and the social benefit is improved.
Compared with the traditional steel sleeve construction process, the two processes are compared as follows:
the structures obtained by the two construction processes can be compared respectively by combining the attached drawings 4-5 and the attached drawings 6-7.
From the above, the process of the method is greatly simplified, and the effective transmission of the load from the column to the foundation is ensured. Thereby reducing the construction cost, accelerating the construction progress and having great application value.
Claims (3)
1. The construction method of the reinforced concrete frame structure column foundation enclosure beam in the reverse construction method is characterized by comprising the following steps of:
pouring or punching a central support column;
carrying out ground cushion layer construction;
roughening the surface of the support column, drilling along the radial direction of the support column, and implanting the inserted bar by a chemical bar-implanting process;
processing the steel bars of the enclosure beam around the support columns, and paving the steel bars in the foundation;
binding the enclosure beam and the steel bars in the foundation;
and erecting a template, and pouring concrete to obtain the reinforced concrete enclosure beam.
2. The method for constructing a reinforced concrete frame structure column foundation envelope beam in reverse construction according to claim 1, wherein the support columns are embedded with the dowels at three interfaces of upper, middle and lower, and the dowels embedded at each interface are 4 groups.
3. The method for constructing a reinforced concrete frame structure column foundation envelope beam in reverse construction according to claim 2, wherein the reinforced concrete envelope beam extends in a radial direction of the support column and penetrates the obtained reinforced concrete envelope beam from an inner end to an outer end thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761594.3A CN111851584A (en) | 2020-07-31 | 2020-07-31 | Construction method of reinforced concrete frame structure column foundation enclosure beam in reverse construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761594.3A CN111851584A (en) | 2020-07-31 | 2020-07-31 | Construction method of reinforced concrete frame structure column foundation enclosure beam in reverse construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111851584A true CN111851584A (en) | 2020-10-30 |
Family
ID=72954014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010761594.3A Pending CN111851584A (en) | 2020-07-31 | 2020-07-31 | Construction method of reinforced concrete frame structure column foundation enclosure beam in reverse construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111851584A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6471942A (en) * | 1987-09-10 | 1989-03-16 | Takenaka Komuten Co | Formwork execution method in method of reverse driving construction |
| CN101775844A (en) * | 2010-02-02 | 2010-07-14 | 华东建筑设计研究院有限公司 | Connecting joint of ring beam of steel core concrete column used for topdown construction method foundation pit engineering |
| CN103669866A (en) * | 2013-12-20 | 2014-03-26 | 广东省第四建筑工程公司 | Construction method of basement reinforced concrete column joint connecting structure |
| CN203654479U (en) * | 2013-12-14 | 2014-06-18 | 上海建工二建集团有限公司 | Rigid pillar beam joint connecting structure in top-down method construction |
| CN105113715A (en) * | 2015-08-17 | 2015-12-02 | 上海建工二建集团有限公司 | Prefabricated column for reverse construction method and underground structure reverse construction method |
| CN205116398U (en) * | 2015-11-16 | 2016-03-30 | 上海浚源建筑设计有限公司 | Steel -pipe column and reinforced concrete roof beam connected node |
| CN105649217A (en) * | 2015-12-31 | 2016-06-08 | 上海建工建集团有限公司 | Profiled steel structure beam column joint for reverse construction of stiffened structure and construction method |
| CN107542108A (en) * | 2016-12-22 | 2018-01-05 | 深圳建业工程集团股份有限公司 | A kind of reverse construction method of building basement structure |
| CN108060683A (en) * | 2017-12-18 | 2018-05-22 | 烟建集团有限公司 | A kind of middle weathering geology top-down construction method |
| CN210975869U (en) * | 2019-10-11 | 2020-07-10 | 三一筑工科技有限公司 | Prefabricated post and basic overlap joint node |
-
2020
- 2020-07-31 CN CN202010761594.3A patent/CN111851584A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6471942A (en) * | 1987-09-10 | 1989-03-16 | Takenaka Komuten Co | Formwork execution method in method of reverse driving construction |
| CN101775844A (en) * | 2010-02-02 | 2010-07-14 | 华东建筑设计研究院有限公司 | Connecting joint of ring beam of steel core concrete column used for topdown construction method foundation pit engineering |
| CN203654479U (en) * | 2013-12-14 | 2014-06-18 | 上海建工二建集团有限公司 | Rigid pillar beam joint connecting structure in top-down method construction |
| CN103669866A (en) * | 2013-12-20 | 2014-03-26 | 广东省第四建筑工程公司 | Construction method of basement reinforced concrete column joint connecting structure |
| CN105113715A (en) * | 2015-08-17 | 2015-12-02 | 上海建工二建集团有限公司 | Prefabricated column for reverse construction method and underground structure reverse construction method |
| CN205116398U (en) * | 2015-11-16 | 2016-03-30 | 上海浚源建筑设计有限公司 | Steel -pipe column and reinforced concrete roof beam connected node |
| CN105649217A (en) * | 2015-12-31 | 2016-06-08 | 上海建工建集团有限公司 | Profiled steel structure beam column joint for reverse construction of stiffened structure and construction method |
| CN107542108A (en) * | 2016-12-22 | 2018-01-05 | 深圳建业工程集团股份有限公司 | A kind of reverse construction method of building basement structure |
| CN108060683A (en) * | 2017-12-18 | 2018-05-22 | 烟建集团有限公司 | A kind of middle weathering geology top-down construction method |
| CN210975869U (en) * | 2019-10-11 | 2020-07-10 | 三一筑工科技有限公司 | Prefabricated post and basic overlap joint node |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103321244B (en) | Sand foundation existing building sets up the construction method of basement | |
| KR102195504B1 (en) | Construction method for Eearth self-retaining wall using reinforcing member and CIP construction method | |
| CN107130611A (en) | A kind of design and construction method of the recyclable circular section Row Piles Supporting Structure of flexible compound antiseepage assembled | |
| CN109505298A (en) | A kind of self-balancing foundation pit enclosure method | |
| KR102195510B1 (en) | Construction method for earth self-retaining wall using reinforcing member and PHC pile | |
| CN208441117U (en) | A kind of built pile supporting construction of cement mixing method interplantation tubular pole and fashioned iron | |
| JP2007009505A (en) | Foundation reinforcing method | |
| JP2000352296A (en) | Method o constructing passage just under underground structure | |
| CN209941754U (en) | High-voltage power pipe culvert in-situ protection structure | |
| CN206220100U (en) | A kind of deep foundation pit supporting structure for closing on protection building | |
| CN111851584A (en) | Construction method of reinforced concrete frame structure column foundation enclosure beam in reverse construction method | |
| JP2868651B2 (en) | Earth retaining method above existing underground structure | |
| CN202139604U (en) | Cast-in-situ abnormal reinforced concrete pile core cement soil underground continuous wall for retaining and protection for foundation excavation | |
| CN205276289U (en) | Prestressed concrete beam formula double row pile struts system | |
| Essler | The design of jet grouting from concept to execution | |
| CN102677679A (en) | Cement-soil diaphragm wall with cast-in-situ special-shaped reinforced concrete pile cores for construction of foundation pits | |
| CN114411781A (en) | Construction method of rock geological sheet pile cofferdam | |
| CN210315499U (en) | Enclosure based on prefabricated H-shaped pile | |
| CN112942377A (en) | Novel support shear-resistant structure and construction method thereof | |
| CN113174962A (en) | Foundation pit bottom plate force transmission structure and construction method thereof | |
| CN206289633U (en) | A kind of foundation ditch flexible supporting structure | |
| CN218667649U (en) | Intelligent assembly sinking type vertical shaft system | |
| CN217734046U (en) | Supporting pile and supporting plate combined supporting structure | |
| CN108797630A (en) | A kind of muck foundation sluice foundation construction method | |
| CN213596968U (en) | A miniature stake for ground unstability regional rapid processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |