CN101550723A - Construction method for codes of reserved structural column longitudinal steel bars - Google Patents
Construction method for codes of reserved structural column longitudinal steel bars Download PDFInfo
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- CN101550723A CN101550723A CNA2008100356260A CN200810035626A CN101550723A CN 101550723 A CN101550723 A CN 101550723A CN A2008100356260 A CNA2008100356260 A CN A2008100356260A CN 200810035626 A CN200810035626 A CN 200810035626A CN 101550723 A CN101550723 A CN 101550723A
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Abstract
The invention discloses a construction method for codes of reserved structural column longitudinal steel bars, which is characterized by comprising the following steps: A. penetrating an upper structural column steel bar through a reserved hole of a steel bracket to the position within the range of a temporarily increased section of a structural beam, installing an upper steel bar connector at the lower end of the upper structural column steel bar, and arranging a protective cover outside the steel bar connector; B. chiseling off concrete at the temporarily increased part of the structural beam when pouring the concrete of an underground structural column, exposing and cleaning out the steel bar connector, and simultaneously cutting off the steel bracket, a horizontal steel tray and a vertical stiffening rib in the temporarily increased section of the structural beam; and C. connecting a lower structural column steel bar and the steel bar connector, and pouring the concrete of the structural column. The invention has the advantages of simple structure, convenient operation, construction efficiency improvement, and the like.
Description
Technical field
The present invention relates to building field, be specifically related to a kind of construction method for codes of reserved structural column longitudinal steel bars that is used for the construction work top-down method construction process.
Background technology
The reverse construction technical matters is meant that the horizontal member (beam slab) that utilizes basement or underground structure replaces the fender body horizontal support, with a kind of new construction technology that realizes that ground engineering and underground construction are constructed simultaneously.This construction technology has the shortening construction period, reduces the bracing of foundation pit body deformability, reduces the advantages such as influence to surrounding enviroment, brings very big economic results in society; It is able to extensive use in highrise building and municipal engineering project, and technology also reaches its maturity.In the reverse construction process, the space enclosing structure of constructing earlier and inner vertical braced structures, the beam slab floor structure of the ground one deck of constructing then, the vertical construction simultaneously that makes progress downwards; And in the work progress, how to guarantee that the perforation of longitudinal reinforcement is the technology of a key in the structural column.For this reason, when construction ground one deck horizontal member, need reserve the longitudinal reinforcement of structural column, with the perforation of the vertical reinforcement that guarantees the up-down structure post at the bean column node place.When ground one deck beam need be taked superposed beam (interim increasing section) owing to working load, post node place generally was provided with three～four blocks of horizontal steel corbel steel plates.In at present a large amount of engineering practices, generally take each horizontal steel plate is punched in advance, align exactly in the hole up and down, then the structural column reinforcing bar worn from the hole to the position of regulation.Such construction technology had both been slowed down speed of application, had also reduced efficiency of construction, and difficulty of construction is big.
The utility model content
The object of the present invention is to provide a kind of construction method for codes of reserved structural column longitudinal steel bars that overcomes above-mentioned defective, both can improve efficiency of construction, can guarantee construction quality again.
In order to realize this purpose, technical scheme of the present invention is as follows: a kind of construction method for codes of reserved structural column longitudinal steel bars, the steel core concrete column side is provided with steel corbel and is connected with horizontal reinforcement in the structural beams, structural beams superposed beam place is provided with interim increasing section, it is characterized in that this method may further comprise the steps: A, superstructure post reinforcing bar is passed the preformed hole of steel corbel to the scope of the interim increasing section of structural beams, install the reinforcing bar connector in superstructure post reinforcing bar lower end, outside the reinforcing bar connector, protective sleeve is set; B, when waiting to build underground structure post concrete, the interim augmenting portion concrete of structural beams is cut, expose the reinforcing bar connector, and clean out, simultaneously the steel corbel in the interim increasing section of structural beams and horizontal steel tray, vertical stiffening rib are cut off; C, substructure post reinforcing bar is connected pouring structure post concrete with the reinforcing bar connector.
The relevant regulations of Shanghai City standard " steel bar thick straight thread link technique rules " DBJ/CT007-2006, when adopting AS grade reinforcing steel connector, the joint percentage can be unrestricted.That node of the present invention has is simple in structure, easy to operate, improve advantage such as efficiency of construction.
Description of drawings
The generalized section of the node structure when Fig. 1 is construction ground one sandwich beam plate
The generalized section of node structure when Fig. 2 finally finishes for node
The specific embodiment
As shown in Figure 1 and Figure 2, joint structure of the present invention comprises superstructure post reinforcing bar 1, substructure post reinforcing bar 8, reinforcing bar connector 2, steel corbel 3, horizontal steel tray 4, vertical stiffening rib 5, peg 6, protective sleeve 7.
Described horizontal steel tray 4, vertical stiffening rib 5 are welded to connect with steel core concrete column, and peg 6 is welded to connect with the steel pipe column concrete column, and steel corbel 3 is welded to connect with steel core concrete column.
On the steel corbel 3 at structural beams middle part,, superstructure post vertical reinforcement 1 is passed hole reach in the interim increase scope 9 of structural beams 12, reinforcing bar connector 2 is installed in superstructure post reinforcing bar 1 lower end in advance according to reinforcing bar placement location reserving hole.
Described protective sleeve 7 places the outside of reinforcing bar connector 2, and reinforcing bar connector 2 is protected.
Reinforcing bar connects to be finished, and builds the concrete of superstructure.(as Fig. 1)
With the concrete chisel removal of the interim augmenting portion of structural beams, cut off horizontal steel supporting plate 4, vertical stiffening rib 5 simultaneously, and the steel corbel 3 in the structural beams increase scope 9, expose reinforcing bar connector 2, and clean out.
Substructure post reinforcing bar 8 is connected with reinforcing bar connector 2, and with the stirrup colligation, build the concrete of underground structure.(as Fig. 2)
Described reinforcing bar connector 2 is an AS grade reinforcing steel connector, is used to connect top portion structural column reinforcing bar 1 and substructure post reinforcing bar 8.Described steel corbel 3 is the connecting elements of interior horizontal reinforcement 10 of syndeton beam and steel core concrete column 11.Described horizontal steel tray 4 is for reliably transmitting the structural element of the vertical internal force in bean column node place effectively and uniformly in work progress.Vertical stiffening rib 5 is a structural element of effectively resisting bean column node place shearing in work progress.Peg 6 is a structural element of effectively resisting bean column node place shearing in normal use.The concrete that protective sleeve 7 is built for protection reinforcing bar connector stops up.
Claims (2)
1, construction method for codes of reserved structural column longitudinal steel bars, the steel core concrete column side is provided with steel corbel and is connected with horizontal reinforcement in the structural beams, structural beams superposed beam place is provided with interim increasing section, it is characterized in that this method may further comprise the steps: A, superstructure post reinforcing bar is passed the preformed hole of steel corbel to the scope of the interim increasing section of structural beams, install the reinforcing bar connector in superstructure post reinforcing bar lower end, outside the reinforcing bar connector, protective sleeve is set; B, when waiting to build underground structure post concrete, the interim augmenting portion concrete of structural beams is cut, expose the reinforcing bar connector, and clean out, simultaneously the steel corbel in the interim increasing section of structural beams and horizontal steel tray, vertical stiffening rib are cut off; C, substructure post reinforcing bar is connected pouring structure post concrete with the reinforcing bar connector.
2, construction method for codes of reserved structural column longitudinal steel bars as claimed in claim 1 is characterized in that: described reinforcing bar connector is an AS grade reinforcing steel connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100356260A CN101550723A (en) | 2008-04-03 | 2008-04-03 | Construction method for codes of reserved structural column longitudinal steel bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100356260A CN101550723A (en) | 2008-04-03 | 2008-04-03 | Construction method for codes of reserved structural column longitudinal steel bars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101550723A true CN101550723A (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100356260A Pending CN101550723A (en) | 2008-04-03 | 2008-04-03 | Construction method for codes of reserved structural column longitudinal steel bars |
Country Status (1)
| Country | Link |
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| CN (1) | CN101550723A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974942A (en) * | 2010-12-02 | 2011-02-16 | 北京建工集团有限责任公司 | Steel sleeve beam-column nodes and construction method thereof |
| CN103452133A (en) * | 2012-05-28 | 2013-12-18 | 上海市政工程设计研究总院（集团）有限公司 | Connection method for main structure and accessory structure in wholly-covered water-proof underground structure |
| CN107542220A (en) * | 2016-06-24 | 2018-01-05 | 中国二十冶集团有限公司 | Large-scale variable cross-section concrete column upper strata vertical reinforcement construction method |
| CN107938663A (en) * | 2017-09-22 | 2018-04-20 | 上海市政工程设计研究总院（集团）有限公司 | The PHC pile piles for passing through agent structure position make support system lattice column connector |
| CN111456324A (en) * | 2020-04-20 | 2020-07-28 | 上海建工二建集团有限公司 | Stepped surface early structure column, stepped interface structure column, template and method |
| CN112627187A (en) * | 2020-12-03 | 2021-04-09 | 中国建筑股份有限公司 | Vertical support assembly and construction method of foundation pit vertical support |
-
2008
- 2008-04-03 CN CNA2008100356260A patent/CN101550723A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974942A (en) * | 2010-12-02 | 2011-02-16 | 北京建工集团有限责任公司 | Steel sleeve beam-column nodes and construction method thereof |
| CN101974942B (en) * | 2010-12-02 | 2012-05-30 | 北京建工集团有限责任公司 | Construction method of steel sleeve beam column joint |
| CN103452133A (en) * | 2012-05-28 | 2013-12-18 | 上海市政工程设计研究总院（集团）有限公司 | Connection method for main structure and accessory structure in wholly-covered water-proof underground structure |
| CN103452133B (en) * | 2012-05-28 | 2016-12-14 | 上海市政工程设计研究总院（集团）有限公司 | Method of attachment between agent structure and accessory structure in full bag waterproof underground structure |
| CN107542220A (en) * | 2016-06-24 | 2018-01-05 | 中国二十冶集团有限公司 | Large-scale variable cross-section concrete column upper strata vertical reinforcement construction method |
| CN107542220B (en) * | 2016-06-24 | 2019-09-13 | 中国二十冶集团有限公司 | Large-scale variable cross-section concrete column upper layer vertical reinforcement construction method |
| CN107938663A (en) * | 2017-09-22 | 2018-04-20 | 上海市政工程设计研究总院（集团）有限公司 | The PHC pile piles for passing through agent structure position make support system lattice column connector |
| CN107938663B (en) * | 2017-09-22 | 2024-02-06 | 上海市政工程设计研究总院（集团）有限公司 | PHC pipe pile penetrating through main structure part as supporting system lattice column connector |
| CN111456324A (en) * | 2020-04-20 | 2020-07-28 | 上海建工二建集团有限公司 | Stepped surface early structure column, stepped interface structure column, template and method |
| CN112627187A (en) * | 2020-12-03 | 2021-04-09 | 中国建筑股份有限公司 | Vertical support assembly and construction method of foundation pit vertical support |
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| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091007 |