CN202899637U - Enlarged section reinforced structure for circular reinforced concrete column - Google Patents

Enlarged section reinforced structure for circular reinforced concrete column Download PDF

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Publication number
CN202899637U
CN202899637U CN 201220524494 CN201220524494U CN202899637U CN 202899637 U CN202899637 U CN 202899637U CN 201220524494 CN201220524494 CN 201220524494 CN 201220524494 U CN201220524494 U CN 201220524494U CN 202899637 U CN202899637 U CN 202899637U
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CN
China
Prior art keywords
plate
reinforced concrete
reinforced
concrete post
circular
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CN 201220524494
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Chinese (zh)
Inventor
陈孙贵
倪松林
桂智奇
陈达健
陈孙斌
童圣洁
淘慧杰
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浙江鸿安建设有限公司
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Priority to CN 201220524494 priority Critical patent/CN202899637U/en
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Publication of CN202899637U publication Critical patent/CN202899637U/en

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Abstract

An enlarged section reinforced structure for a circular reinforced concrete column is characterized in that an inner side reinforced steel plate, a splicing plate and a toothed plate embedded hole are chiseled in a reinforced area of the circular reinforced concrete column. An inner side hoop plate and an outer side hoop plate are respectively sleeved at the periphery of the reinforced area and an enlarged column body of an existing circular reinforced concrete column. The end portion of the inner side reinforced steel plate is welded in the inner side hoop plate and the slicing plate is inserted in the embedded hole of the existing circular reinforced concrete column. Outer side reinforced steel plates are inserted into two end portions of the enlarged column body in a penetrating mode and respectively welded on the inner side hoop plate and the outer side hoop plate. More than one anchoring steel plate is evenly arranged on the reinforced area of the existing circular reinforced concrete column. The enlarged section reinforced structure for the circular reinforced concrete column is high in construction speed, good in new and old concrete cooperative work and load bearing property and good in technical and economic benefits.

Description

A kind of increasing section ruggedized construction of circular reinforced concrete post
Technical field
The utility model relates to a kind of post ruggedized construction by increasing section, and particularly a kind of increasing section ruggedized construction of circular reinforced concrete post belongs to the fields such as building engineering, is applicable to the consolidation process of circular reinforced concrete post.
Background technology
Pillar is power transmission, primary structure member vertical in the building, bear vertical and level to load, its stress performance directly determines safety and the functional performance of building structure.In actual use, building uses Functional change, shockproof requirements to improve, design grade improves, built-loading increases, the reasons such as ratio of axial compressive force to axial compressive ultimate capacity of section does not meet the demands, structure overload, concrete aging, to cause the load-carrying properties of original pillar can not satisfy existing user demand, and may affect the safety of building structure, need to take the measure of matters to carry out consolidation process to former pillar.
The at present reinforcing and repairing measure for pillar mainly contains following several: (1) increasing section reinforcing method: improve its intensity by section area and the reinforcement ratio that increases member or building, rigidity, stability and crack resistance, construction technology is simple, improve larger to element bearing capacity, durability and fireproof performance are good, but exist the situ wet operation many, long construction period, original building is used the shortcomings such as impact is larger, sometimes also can cause because of the increase of dead load and must add reinforcing to the original structure basis, and not be suitable for the pillar that plain concrete member and Reinforcement reinforcement ratio are lower than the minimum steel ratio of existing national Specification.(2) add between steel column a staying: be in the post bottom or the post bottom adds the angle steel support simultaneously with top, supporting base end portion can adopt with being connected of post connecting portion post longitudinal reinforcement is dug out, vertical muscle two sides welding in additional short muscle and the post, again with junction plate and additional short muscle single-sided welding, and junction plate and the stiffened panel that supports be welded on the junction plate, steel is installed is at last supported, and use cement sand plaster.Add between steel column a staying and generally be applicable to pillar deflection, longitudinal strength, rigidity and the inadequate reinforcing of stability.The method operation is comparatively loaded down with trivial details, can't satisfy the needs of quick reparation.(3) reinforced with external steel encased: be with shaped steel at concrete four jiaos or two bread.Its advantage is that the sectional dimension of member increases seldom, and the bearing capacity of concrete column can have raising by a relatively large margin.Be applicable to not allow to enlarge markedly first sectional dimension of members, but require significantly to improve the reinforced concrete post of its supporting capacity.But steel using amount is larger, and cost is higher, and should not be in the high temperature place that is used in the unshielded situation more than 60 degree.Exterior glues the steel or sticking CFRP Sheet Strengthening Method are by construction structure glue affixing steel plate or the carbon fiber with special configuration in the concrete structure outside, to improve bending resistance, the shear behavior of structure, strengthen a kind of reinforcement means of structural safety.Generally be applicable to bear Static behavior and be in flexural member in the normal humidity environment, construction fast, the situ wet operation is few and reinforce after little to the structure appearance effects, be the wider reinforcement means of a kind of applicable surface.But consolidation effect depends on adhering process and operant level to a great extent, if there is larger potential safety hazard in the bonding insecure cracking phenomena that very easily occurs.
In sum, in engineering practice, often run into the reinforcing problem of old reinforced concrete post, overcome that existing reinforcing technique ruggedized construction globality is poor, newly placed concrete and former post concrete cooperative bearing weak effect, high in cost of production shortcoming, invent a kind of increasing section ruggedized construction of circular reinforced concrete post, have better economic technology benefit.
The utility model content
The purpose of this utility model is the applied in any combination by steel plate in steel plate in the transverse annular closure and the transverse annular closure, and the short steel plate of vertical anchor plate, shearing etc. is set, provide that a kind of speed of application is fast, the increasing section ruggedized construction of new-old concrete collaborative work and the circular reinforced concrete post that load-carrying properties are good, anti-seismic performance is good.
In order to realize above-mentioned technical purpose, the utility model by the following technical solutions:
A kind of increasing section ruggedized construction of circular reinforced concrete post is characterized in that at first digging the embedding hole of inboard strengthening steel slab, match board and tooth plate at circular reinforced concrete post reinforcing area;
Periphery at former circular reinforced concrete post reinforcing area, increase pile body is socketed respectively inboard hoop plate, outside hoop plate; Inboard strengthening steel slab end is welded in inboard hoop plate, and plate inserts the embedding hole of former circular reinforced concrete post; Outside strengthening steel slab penetratingly inserts increase pile body both ends and is welded in respectively inboard hoop plate, outside hoop plate;
Be evenly arranged more than one vertical anchor plate along former circular reinforced concrete post reinforcing area is elongated.
The increasing section ruggedized construction of aforesaid circular reinforced concrete post is characterized in that vertical anchor plate one side evenly arranges tooth plate, and tooth plate is imbedded in the embedding hole and by binder-reinforced.
The increasing section ruggedized construction of aforesaid circular reinforced concrete post is characterized in that medial and lateral strengthening steel slab central lines, and the interior extensions of center line intersect at the center of circle of post, evenly distributes more than one group in same cross section.
The structure that the utility model relates to has the following advantages and beneficial effect:
(1) the inboard evenly interval of vertical anchor plate arranges tooth plate, can avoid former steel concrete post in length and breadth to arrangement of reinforcement, tooth plate is implanted former reinforced concrete pile body, when vertical anchor plate installation and position were fixing during constructability, it was good to have improved new-old concrete collaborative work, carrying and anti-seismic performance.
(2) in outside hoop plate and the transverse annular closure the even interval of steel plate lay can avoid former steel concrete post in length and breadth to arrangement of reinforcement, simultaneously its separate type setting party construction and installing.
(3) setting of medial and lateral hoop plate, so that new-old concrete has good confined effect, the setting of collaborative inboard strengthening steel slab and outside strengthening steel slab, it is good to have improved new-old concrete collaborative work, carrying and anti-seismic performance.
Description of drawings
Fig. 1 is the increasing section ruggedized construction schematic cross-sectional view of circular reinforced concrete post;
Fig. 2 is vertical anchor plate schematic diagram.
Among the figure: the circular reinforced concrete post of 1-, the vertical anchor plate of 2-, the 3-tooth plate, the inboard hoop of 4-plate, the inboard strengthening steel slab of 5-, 6-outside strengthening steel slab, 7-increases pile body, 8-outside hoop plate, 9-match board.
Specific embodiment
Technological requirement, Plate Welding technological requirement, the requirement of concreting maintaining process, the requirement of cementing agent injection technology etc. are dug in former steel concrete post surface, are not repeated in the present embodiment, and emphasis is set forth the embodiment that the utility model relates to structure.
Fig. 1 is the increasing section ruggedized construction schematic cross-sectional view of circular reinforced concrete post, and Fig. 2 is vertical anchor plate schematic diagram; Former circular steel reinforced concrete column diameter 1000mm, concrete grade are that C25, stabilization zone length are 5000mm, and external diameter was 1300mm after pile body increased.Vertical anchor plate 2 adopts the Q235 steel, and length 5000mm, thickness 10mm, width are 125mm; Tooth plate 3 thickness 10mm, width are 125mm, highly are 100mm that interval 500mm arranges 1; Inboard hoop plate 4 adopts Q235 steel, thickness 10mm, length 300mm, external diameter 1320mm; Inboard strengthening steel slab 5 adopts the Q235 steel, and thickness 10mm, width are 120mm, highly are 100mm; Outside strengthening steel slab 6 adopts the Q235 steel, and thickness 10mm, width are 140mm, highly are 100mm; Outside hoop plate 8 adopts Q235 steel, thickness 10mm, length 300mm, external diameter 1020mm.
Shown in Fig. 1,2, a kind of increasing section ruggedized construction of circular reinforced concrete post, at first dig the embedding hole of inboard strengthening steel slab 5, match board 9 and tooth plate 3 at former circular reinforced concrete post 1 reinforcing area, former circular reinforced concrete post 1 is avoided in length and breadth to arrangement of reinforcement in embedding hole, former steel concrete post 1 is not damaged to arrangement of reinforcement in length and breadth in the cutting process.
Periphery at former circular reinforced concrete post 1 reinforcing area, increase pile body 7 evenly is socketed respectively inboard plate 4, the outside hoop plate 8 of binding round, spacing 1000mm, both weld amalgamation separately at match board 9 places, match board 9 runs through increasing section pile body 7 and inserts in the embedding hole of former pile body, and extended line is by circular reinforced concrete post 1 center of circle; Inboard strengthening steel slab 5 ends are welded in inboard hoop plate 4, and the embedding hole of inserting former circular reinforced concrete post 1; Outside strengthening steel slab 6 penetratingly inserts increase pile body 7 both ends and is welded in respectively inboard hoop plate 4, outside hoop plate 8; Inboard strengthening steel slab 5, outside strengthening steel slab 6 are evenly arranged 3 groups in same cross section, both central lines, and the interior extensions of center line intersect at the center of circle of post.
Be evenly arranged 4 vertical anchor plates 2 along former circular reinforced concrete post 1 reinforcing area is elongated, vertical anchor plate 2 one sides evenly arrange tooth plate 3; Tooth plate 3 is imbedded in the embedding hole and by binder-reinforced.

Claims (3)

1. the increasing section ruggedized construction of a circular reinforced concrete post is characterized in that digging the embedding hole of inboard strengthening steel slab, match board and tooth plate at circular reinforced concrete post reinforcing area;
Periphery at former circular reinforced concrete post reinforcing area, increase pile body is socketed respectively inboard hoop plate, outside hoop plate; Inboard strengthening steel slab end is welded in inboard hoop plate, and plate inserts the embedding hole of former circular reinforced concrete post; Outside strengthening steel slab penetratingly inserts increase pile body both ends and is welded in respectively inboard hoop plate, outside hoop plate;
Be evenly arranged more than one vertical anchor plate along former circular reinforced concrete post reinforcing area is elongated.
2. the increasing section ruggedized construction of circular reinforced concrete post according to claim 1 is characterized in that vertical anchor plate one side evenly arranges tooth plate, and tooth plate is imbedded in the embedding hole and by binder-reinforced.
3. the increasing section ruggedized construction of circular reinforced concrete post according to claim 1 is characterized in that medial and lateral strengthening steel slab central lines, and the interior extensions of center line intersect at the center of circle of post, evenly distributes more than one group in same cross section.
CN 201220524494 2012-10-12 2012-10-12 Enlarged section reinforced structure for circular reinforced concrete column CN202899637U (en)

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Application Number Priority Date Filing Date Title
CN 201220524494 CN202899637U (en) 2012-10-12 2012-10-12 Enlarged section reinforced structure for circular reinforced concrete column

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Application Number Priority Date Filing Date Title
CN 201220524494 CN202899637U (en) 2012-10-12 2012-10-12 Enlarged section reinforced structure for circular reinforced concrete column

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104389437A (en) * 2014-11-17 2015-03-04 杭州江润科技有限公司 Construction method for connecting steel pipe concrete column connection structure to reinforced concrete column
CN104631850A (en) * 2014-12-24 2015-05-20 湖南工程学院 Concrete column strengthening method of compressive pre-stress steel casing rebar planting extension cross section
CN105756366A (en) * 2016-03-22 2016-07-13 武汉大学 Method for accelerating reinforcement of reinforced corner column
CN107939061A (en) * 2016-10-12 2018-04-20 湖北建科结构加固有限责任公司 Frame column isolates method for strengthening
CN108589515A (en) * 2018-05-10 2018-09-28 长安大学 A method of shake rear abutment is reinforced using ultra-tough fiber concrete

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104389437A (en) * 2014-11-17 2015-03-04 杭州江润科技有限公司 Construction method for connecting steel pipe concrete column connection structure to reinforced concrete column
CN104389437B (en) * 2014-11-17 2016-06-08 杭州江润科技有限公司 A kind of reinforced column connects the constructional method that steel column connects structure
CN104631850A (en) * 2014-12-24 2015-05-20 湖南工程学院 Concrete column strengthening method of compressive pre-stress steel casing rebar planting extension cross section
CN105756366A (en) * 2016-03-22 2016-07-13 武汉大学 Method for accelerating reinforcement of reinforced corner column
CN107939061A (en) * 2016-10-12 2018-04-20 湖北建科结构加固有限责任公司 Frame column isolates method for strengthening
CN108589515A (en) * 2018-05-10 2018-09-28 长安大学 A method of shake rear abutment is reinforced using ultra-tough fiber concrete
CN108589515B (en) * 2018-05-10 2019-04-26 长安大学 A method of shake rear abutment is reinforced using ultra-tough fiber concrete

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