CN114809693B - High-load self-restraint reinforcing device for existing reinforced concrete column - Google Patents
High-load self-restraint reinforcing device for existing reinforced concrete column Download PDFInfo
- Publication number
- CN114809693B CN114809693B CN202210278369.3A CN202210278369A CN114809693B CN 114809693 B CN114809693 B CN 114809693B CN 202210278369 A CN202210278369 A CN 202210278369A CN 114809693 B CN114809693 B CN 114809693B
- Authority
- CN
- China
- Prior art keywords
- arc
- concrete column
- concrete
- outer shell
- shell layer
- 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.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention provides a high-load self-restraint reinforcing device of an existing reinforced concrete column, which comprises the following components: an outer shell layer disposed around the concrete column; the support structure is arranged between the shell layer and the concrete column; wherein the support structure is provided with an arc-shaped pull rod; the arc-shaped pull rods are arranged along the periphery of the concrete column, and the two ends of the arc-shaped pull rods respectively penetrate through the outer shell layer and then are connected with a fixing structure; the fixed structure is propped against the outer wall of the outer shell layer; and a poured concrete layer is arranged between the outer shell layer and the concrete column. According to the invention, the arc-shaped pull rod is arranged and concrete is poured to form the concrete layer, so that the combination length of the supporting structure and the concrete is increased, the strength of the concrete layer is increased, the outer shell layer is matched to wrap the concrete column in the middle, the strength of the whole concrete bearing column is increased, the thickness does not need to be deepened, the construction is simple, and the efficiency is high.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a high-load self-restraint reinforcing device for an existing reinforced concrete column.
Background
With the rapid development of society, more and more building structures have reached the design service life, or the building structures in important places need to be modified due to the social requirement to increase the load; the bearing columns of the building are required to be reinforced to meet the practical use requirements.
The reinforcing and reforming mode of the reinforced concrete column at present mainly comprises a cross-section increasing method, outsourcing section steel, carbon fiber cloth sticking and other technologies, in the prior art, for a building structure with larger load change after reforming, the increased cross-section area is larger, the thickness of the outsourcing steel sticking or the number of layers of the carbon fiber cloth sticking are thicker, and meanwhile, a large number of working procedures such as wet operation and structural adhesive sticking are needed on site, so that the construction cost is high, the construction period is longer, the construction efficiency is low, the reinforcing requirement is met under the condition that the construction efficiency is ensured, the construction efficiency is increased, and the cost is reduced.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the high-load self-restraint reinforcing device for the existing reinforced concrete column, so that the construction efficiency is improved, the construction cost is reduced, and the strength of the reinforced concrete column is improved.
The invention provides a high-load self-restraint reinforcing device of an existing reinforced concrete column, which comprises the following components:
an outer shell layer disposed around the concrete column;
the support structure is arranged between the shell layer and the concrete column;
wherein the support structure is provided with an arc-shaped pull rod; the arc-shaped pull rods are arranged along the periphery of the concrete column, and the two ends of the arc-shaped pull rods respectively penetrate through the outer shell layer and then are connected with a fixing structure; the fixed structure is propped against the outer wall of the outer shell layer; and a poured concrete layer is arranged between the outer shell layer and the concrete column.
Compared with the prior art, the invention has the following beneficial effects:
in the technology of the invention, the arc-shaped pull rod is arranged and concrete is poured to form the concrete layer, so that the combination length of the supporting structure and the concrete is increased, the strength of the concrete layer is increased, the outer shell layer is matched to wrap the concrete column in the middle, the strength of the whole concrete bearing column is increased, the thickness does not need to be deepened, the construction is simple, and the efficiency is high.
Preferably, a plurality of tension blocks are arranged on the arc-shaped pull rod along the length direction.
Preferably, a plurality of pegs are also included that are attached to the inner wall of the outer shell layer.
Preferably, a plurality of arc-shaped pull rods are arranged; the plurality of arc pull rods are arranged in a staggered manner by taking the concrete column as the center in a sequential rotation mode from bottom to top.
Preferably, the housing layer comprises a half-circular housing comprising two interconnections.
Preferably, the support structure comprises:
the upper spliced circular ring is detachable, and a plurality of threaded holes are formed in the lower end face of the upper spliced circular ring;
the lower spliced circular ring is detachable, and the upper end surface of the lower spliced circular ring is provided with a plurality of threaded holes;
the two ends of the support rods are respectively in threaded connection with corresponding threaded holes on the upper splicing circular ring and the lower splicing circular ring;
wherein, all be connected with a plurality of supporting pieces along length direction on every bracing piece.
Preferably, the upper end face of the supporting block is provided with an open arc-shaped channel; the arc-shaped channel is used for supporting the arc-shaped pull rod.
Preferably, the fixing structure includes:
the fixed block is provided with a yielding hole, and one surface of the fixed block is attached to the outer wall of the shell layer;
the fixed nut is attached to one surface of the fixed block;
the end part of the arc-shaped pull rod penetrates through the abdication hole and is in threaded connection with the fixing nut.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic structural view of a high load self-restraining reinforcement device for an existing reinforced concrete column (top view, arcuate tie rod opposite arrangement) in accordance with an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the AA side of a high load self-restraining reinforcement of the prior art reinforced concrete column of FIG. 1;
FIG. 3 is a top view (with studs) of a high load self-restraining reinforcement of the prior art reinforced concrete column of FIG. 1;
fig. 4 is a schematic view of the connection of the semicircular shells of the high-load self-restraining reinforcement device of the existing reinforced concrete column of fig. 1.
Reference numerals:
1. an outer shell layer; 11. a peg; 12. a semicircular housing;
2. a support structure; 21. an arc-shaped pull rod; 22. a tension block; 23. a spliced circular ring is arranged on the upper part; 24. a lower spliced circular ring; 25. a support rod; 26. a support block; 261. an arcuate channel;
3. a concrete column;
4. a concrete layer;
5. a fixed structure; 51. a fixed block; 52. and (5) fixing a nut.
Detailed Description
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Referring to fig. 1 to 4, a high load self-restraining reinforcement device for an existing reinforced concrete column 3, comprising: an outer shell layer 1 arranged around the concrete column 3; a support structure 2 mounted between the outer shell layer 1 and the concrete column 3; wherein the support structure 2 is provided with an arc-shaped pull rod 21; the arc-shaped pull rods 21 are arranged along the outer circumference of the concrete column 3, and the two ends of the arc-shaped pull rods respectively penetrate through the outer shell layer 1 and are connected with a fixing structure 5; the fixed structure 5 is propped against the outer wall of the outer shell layer 1; between the outer shell layer 1 and the concrete column 3 is a poured concrete layer 4.
The middle section of the arc-shaped pull rod 21 is arc-shaped, and the arc-shaped section of the pull rod is concentric with the cross section of the concrete column 3. The outer shell layer 1 is cylindrical when surrounding the concrete column 3, roughening treatment is carried out on the concrete column 3, and the roughening depth is 10-30mm; pouring concrete in the outer shell layer 1 to form a concrete layer 4, and wrapping the support structure 2 in the concrete layer 4; naturally, the arc-shaped pull rod 21 is wrapped, and the arc-shaped pull rod 21 is connected with the fixing structure 5 through the two ends to apply inward pulling force to the outer wall of the outer shell layer 1. The concrete column 3 receives a load from above, and its middle portion tends to expand outward. The curved tie rods 21 exert a pulling force such that the outer shell layer 1 clamps the concrete layer 4 inwardly against the expansion of the concrete column 3.
In addition, it should be noted that the internal support structure 2 of the reinforced concrete building is usually made of steel bars, the metal frames made of the steel bars are various cuboid frames, and the arc-shaped pull rods 21 are arranged through the arc-shaped sections of the metal frames, so that more steel bars are placed in the concrete (the length of the bent steel bars is obviously longer than that of the linear steel bars in the same unit length of concrete), and the combination of the steel bars and more concrete can be realized by increasing the length of the steel bars in the unit concrete; thereby enhancing the strength of the concrete in the unit.
The upper part of the concrete column 3 is stressed and the middle part of the concrete column expands, the force of the arc-shaped pull rod 21 in the concrete layer 4 is in different directions, namely, the arc-shaped pull rod 21 is tensioned, the arc-shaped section of the arc-shaped pull rod 21 has more length combined with concrete than a linear steel bar, namely, the stressed expansion of the concrete can be uniformly distributed on each part of concrete combined with the arc-shaped pull rod 21, the expansion of the concrete column 3 is started from the destruction of local expansion (stress concentration), and the stress concentration can be reduced by the arrangement of the arc-shaped pull rod 21. The whole device increases the strength of the concrete layer 4 and has better protection effect on the concrete column 3.
Further, a plurality of tension blocks 22 are provided on the arc-shaped tie rod 21 in the length direction.
When the arc-shaped pull rod 21 is wrapped by the poured concrete, the tensile blocks 22 arranged on the arc-shaped pull rod 21 are also wrapped in the concrete, and when the arc-shaped pull rod 21 has a swelling tendency due to the load born by the concrete column 3, the structural degree of the arc-shaped pull rod 21 and the concrete layer 4 is enhanced by the existence of the tensile blocks 22, namely, the swelling force of the concrete can be completely born by the arc-shaped pull rod 21 and is restrained by the arc-shaped pull rod 21. It can be appreciated that the arc pull rod 21 of this device diagram is the U type, and the actual type also can be C type, and the tip of the arc section of arc pull rod 21 can be located the diameter of concrete column 3, then passes shell layer 1 and be connected with fixed knot structure 5, can intuitively understand like this that the both ends of arc pull rod 21 are outwards pushed when the concrete column 3 is expanded, and arc pull rod 21 length restriction can't lengthen, so concrete column 3 is restricted.
Further, a plurality of pegs 11 are attached to the inner wall of the outer shell 1.
The pegs 11 are T-shaped, in order to resist the local forced outward expansion of the concrete column 3 and the concrete layer 4, the T-shaped pegs 11 are wrapped by the concrete layer 4, when the local outer shell layer 1 is jacked up by the expansion of the concrete, the rest parts of the outer shell layer 1 are driven to move outwards, and the pegs 11 in different places are pulled, so that the force brought by the local expansion of the concrete can be effectively dispersed by the arrangement of a plurality of pegs 11, namely the whole outer shell layer 1 is assembled to resist the local expansion, and the strength is increased.
Further, a plurality of arc-shaped pull rods 21 are arranged; the plurality of arc-shaped pull rods 21 are sequentially rotated and staggered from bottom to top by taking the concrete column 3 as a center.
The plurality of arc-shaped pull rods 21 are arranged to rotate 30 degrees or 40 degrees or 50 degrees from bottom to top. The smaller the angle of rotation, the higher the strength. Further, the higher the density of the arc-shaped tie rods 21 arranged up and down, the higher the strength. A plurality of arcuate ties 21 each surround the concrete column 3.
Further, the housing layer 1 comprises a half-circular housing 12 comprising two interconnections.
The cross section of the two semicircular shells 12 is an arc-shaped strip, and the cross section of the outer shell is a circular ring. The two ends of the two semicircular shells 12 are spliced together and are connected through bolts. The bolts are numerous and vertically arranged. The outer shell formed by splicing the semicircular shells 12 restrains the concrete in the outer shell, and the outer shell is matched with the arc-shaped pull rod 21 to resist expansion, and the arc-shaped pull rod 21 resists expansion by stretching after being combined with the concrete.
Further, the support structure 2 further comprises: the upper splicing circular ring 23 is detachable, and the lower end surface of the upper splicing circular ring is provided with a plurality of threaded holes; the lower splice ring 24 is detachable, and a plurality of threaded holes are formed in the upper end face of the lower splice ring. The two ends of the support rods 25 are respectively in threaded connection with corresponding threaded holes on the upper splicing circular ring 23 and the lower splicing circular ring 24; each support bar 25 is connected with a plurality of support blocks 26 along the length direction.
The supporting blocks 26 positioned at the same height on the plurality of supporting rods 25 jointly form a supporting group to support one arc-shaped pull rod 21; the number of the supporting blocks 26 on each supporting rod 25 determines the number of the supportable arc-shaped pull rods 21, so that the strength of the concrete layer 4 after the subsequent reinforcement is affected. More importantly, the installation of the whole device has certain difficulty, the main structure of the device is a shell layer 1, an arc-shaped pull rod 21 and a concrete layer 4 poured at the position of the arc-shaped pull rod 21, however, after the shell layer 1 is built, the arc-shaped pull rod 21 is inconvenient to put in, especially when the shell layer 1 is high enough; therefore, the device firstly builds the supporting rod 25, firstly breaks the upper spliced circular ring 23 and the lower spliced circular ring 24, then respectively connects the half upper spliced circular ring 23 and the half lower spliced circular ring 24 with the supporting rod 25, then splices the upper spliced circular ring 23 and the lower spliced circular ring 24 around the concrete column 3, connects the upper spliced circular ring and the lower spliced circular ring into a whole spliced ring through bolts, then places the arc-shaped pull rods 21 at different heights, then opens holes on the semicircular shells 12 on two sides, and folds the semicircular shells together, and the ends of the arc-shaped pull rods 21 penetrate through the semicircular shells 12 and are fixedly connected with the semicircular shells; the device is convenient and quick to build.
Further, an open arc-shaped channel 261 is formed on the upper end surface of the supporting block 26; the arcuate channel 261 is used to support the arcuate pull rod 21.
The arcuate pull rod 21 is positioned within the arcuate channel 261. When the arc-shaped pull rod 21 is pulled due to expansion of the concrete after the concrete is poured at the position of the supporting structure 2, the supporting blocks 26 form reaction force on the arc-shaped pull rod 21, so that the arc-shaped pull rod 21 is helped to resist deformation, and the strength is further improved; furthermore, the vertical support bar 25 pulls on the support block 26, which means that the vertical support bar 25 also helps the arc-shaped tie rod 21 resist deformation. The two sides of each supporting block 26 are bonded by the tensile blocks 22; that is, when the arc-shaped tie rods 21 are placed on the support blocks 26, the tension blocks 22 clamp the support blocks 26 on both sides of each support block 26. The supporting blocks 26 are used for supporting the arc-shaped pull rods 21, and the structural degree of the supporting rods 25 and the concrete is increased like the tensile blocks 22; the strength is improved.
Further, the fixing structure 5 includes:
a fixing block 51, on which a relief hole is formed, one surface of which is attached to the outer wall of the outer shell layer 1;
a fixing nut 52 attached to one surface of the fixing block 51;
wherein, the end of the arc-shaped pull rod 21 passes through the abdication hole and is in threaded connection with the fixed nut 52.
The fixing block 51 is attached to the outer shell layer 1, so that the area of the arc-shaped pull rod 21 for applying external force to the outer shell layer 1 is increased, the outer shell layer 1 is uniformly stressed and is balanced with the expansion force of concrete; avoiding local stress damage to the outer shell layer 1.
In the description of the present invention, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (7)
1. The utility model provides a high load self-restraint reinforcing apparatus of existing reinforced concrete column which characterized in that includes:
an outer shell layer disposed around the concrete column;
the support structure is arranged between the shell layer and the concrete column;
wherein the support structure is provided with an arc-shaped pull rod; the arc-shaped pull rods are arranged along the periphery of the concrete column, and the two ends of the arc-shaped pull rods respectively penetrate through the outer shell layer and then are connected with a fixing structure; the fixed structure is propped against the outer wall of the outer shell layer; a poured concrete layer is arranged between the outer shell layer and the concrete column;
the support structure further comprises:
the upper spliced circular ring is detachable, and a plurality of threaded holes are formed in the lower end face of the upper spliced circular ring;
the lower spliced circular ring is detachable, and the upper end surface of the lower spliced circular ring is provided with a plurality of threaded holes;
the two ends of the support rods are respectively in threaded connection with corresponding threaded holes on the upper splicing circular ring and the lower splicing circular ring;
wherein, all be connected with a plurality of supporting pieces along length direction on every bracing piece.
2. A high load self-restraining reinforcement for an existing reinforced concrete column according to claim 1, wherein a plurality of tension blocks are provided on the arc-shaped tie rod in the length direction.
3. A high load self-restraining reinforcement for an existing reinforced concrete column according to claim 2, further comprising a plurality of studs attached to the inner wall of the outer shell.
4. A high load self-restraining reinforcement for an existing reinforced concrete column according to claim 3, wherein a plurality of arc-shaped tie rods are provided; the plurality of arc pull rods are arranged in a staggered and rotating way from bottom to top by taking the concrete column as the center.
5. A high load self-restraining reinforcement for an existing reinforced concrete column according to any one of claims 1 to 4, wherein the outer shell comprises two semi-circular shells connected to each other.
6. The high load self-restraining reinforcement device for existing reinforced concrete columns according to claim 5, wherein the upper end surface of the supporting block is provided with an open arc-shaped channel; the arc-shaped channel is used for supporting the arc-shaped pull rod.
7. A high load self-restraining reinforcement for an existing reinforced concrete column according to claim 6, wherein the fixing structure comprises:
the fixed block is provided with a yielding hole, and one surface of the fixed block is attached to the outer wall of the shell layer;
the fixed nut is attached to one surface of the fixed block;
the end part of the arc-shaped pull rod penetrates through the abdication hole and is in threaded connection with the fixing nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210278369.3A CN114809693B (en) | 2022-03-21 | 2022-03-21 | High-load self-restraint reinforcing device for existing reinforced concrete column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210278369.3A CN114809693B (en) | 2022-03-21 | 2022-03-21 | High-load self-restraint reinforcing device for existing reinforced concrete column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114809693A CN114809693A (en) | 2022-07-29 |
| CN114809693B true CN114809693B (en) | 2023-05-02 |
Family
ID=82530728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210278369.3A Active CN114809693B (en) | 2022-03-21 | 2022-03-21 | High-load self-restraint reinforcing device for existing reinforced concrete column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114809693B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748901A (en) * | 2009-12-29 | 2010-06-23 | 江苏省电力试验研究院有限公司 | Annular concrete pole reinforcing method for in-service substation |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2422783A1 (en) * | 1978-04-14 | 1979-11-09 | Freyssinet Int Stup | Anchorage for concrete prestressing cable - has segmental demountable transmission ring between anchor dome and bearing ring |
| JP2004027714A (en) * | 2002-06-27 | 2004-01-29 | Tokyo Tekko Co Ltd | Reinforcement structure of existing reinforced concrete structure |
| JP3993506B2 (en) * | 2002-11-15 | 2007-10-17 | 西日本旅客鉄道株式会社 | Helical steel wire holding device |
| US20090120025A1 (en) * | 2004-10-05 | 2009-05-14 | Halil Sezen | Prefabricated concrete reinforcement system |
| CN100480482C (en) * | 2007-03-09 | 2009-04-22 | 华南理工大学 | External transverse prestressed steel reinforced concrete beam |
| JP4895221B2 (en) * | 2008-03-06 | 2012-03-14 | 千代田化工建設株式会社 | Partial renewal construction method for trunk plates of tower tanks |
| JP2016188514A (en) * | 2015-03-30 | 2016-11-04 | 株式会社大成Ｃｉ | Member and construction method for reinforcing erected pipe body |
| CN206233626U (en) * | 2016-04-27 | 2017-06-09 | 河南理工大学 | Perforation rib pull bar constraint rectangular steel pipe outsourcing self-compacting concrete reinforced column |
| CN107268459B (en) * | 2017-06-19 | 2023-08-11 | 桂林理工大学 | Construction method for prestressed fiber cloth reinforced concrete pier column |
| KR102157205B1 (en) * | 2017-11-27 | 2020-09-17 | 왕도현 | Pillar reinforcement method of parking lot structure for residential use |
| CN108103965B (en) * | 2018-01-12 | 2019-04-09 | 长沙理工大学 | Prestressed Bailey beam for reinforcement and construction method thereof |
| CN211714015U (en) * | 2019-12-25 | 2020-10-20 | 河北建信工程项目管理有限公司 | House building structure built in underground space |
| CN112482862B (en) * | 2020-11-30 | 2022-03-08 | 国网福建省电力有限公司经济技术研究院 | Compressive reinforcement device for power transmission tower member based on single arc plate steel pipe and manufacturing method thereof |
| CN215671285U (en) * | 2021-09-03 | 2022-01-28 | 任丽 | Concrete column cylinder surface subsides prosthetic devices for building engineering |
-
2022
- 2022-03-21 CN CN202210278369.3A patent/CN114809693B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748901A (en) * | 2009-12-29 | 2010-06-23 | 江苏省电力试验研究院有限公司 | Annular concrete pole reinforcing method for in-service substation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114809693A (en) | 2022-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8782966B2 (en) | Base support for wind-driven power generators | |
| CN106677591A (en) | Anti-buckling reinforcing device for angle steel of power transmission tower | |
| CN104831818A (en) | Connection node of precast reinforced concrete beam and laminated column | |
| CN114809693B (en) | High-load self-restraint reinforcing device for existing reinforced concrete column | |
| KR101012013B1 (en) | Temporary Reinforcing Apparatus for Increasing Cast Height of Concrete in Concrete Filled Tube Column | |
| NO119916B (en) | ||
| KR101012012B1 (en) | Temporary Reinforcing Apparatus for Casting Concrete in Concrete Filled Tube Column | |
| JP3842581B2 (en) | Construction method of cylindrical PC container | |
| CN209798509U (en) | Steel bar anchorage device for prefabricating bridge plate | |
| CN209469534U (en) | Concrete tower | |
| CN213297135U (en) | A stretch-draw strutting arrangement for building carrier plate is pour | |
| CN214090973U (en) | Bottom formwork supporting steel frame for pouring reinforced concrete cylindrical bin top concrete | |
| CN206737264U (en) | A kind of spliced pre-stressed carbon fiber plate load-bearing pillar | |
| JP3375585B2 (en) | Method of introducing prestress into cylindrical body of cylindrical concrete structure | |
| JP3551816B2 (en) | Seismic isolation method for existing buildings | |
| CN217538113U (en) | Overhead pipeline device | |
| CN215907489U (en) | A reinforced structure for space rack bucking member | |
| CN221143683U (en) | Reinforcing structure of hole beam | |
| CN218040679U (en) | Pre-buried threading pipe structure | |
| CN220377313U (en) | Secant pile guide wall template structure | |
| KR102235693B1 (en) | Steel lattice girder for supporting tunnel excavation surface that minimizes the occurrence of shotcrete voids and tunnel construction method using the same | |
| CN220301317U (en) | Zxfoom zxfoom zxfoom zxfoom occlusion device pile guide wall template | |
| CN116575753B (en) | Method for dismantling underground structure by combining pile anchor support and main body structure | |
| CN212175801U (en) | Steel pipe inner supporting structure of foundation pit steel upright support | |
| CN107268893B (en) | Spliced prestress carbon fiber plate bearing column |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |