CN112392145A - Reverse construction method double-column underpinning steel reinforced concrete frame column deviation correction connection structure - Google Patents

Reverse construction method double-column underpinning steel reinforced concrete frame column deviation correction connection structure Download PDF

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Publication number
CN112392145A
CN112392145A CN202011243720.2A CN202011243720A CN112392145A CN 112392145 A CN112392145 A CN 112392145A CN 202011243720 A CN202011243720 A CN 202011243720A CN 112392145 A CN112392145 A CN 112392145A
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CN
China
Prior art keywords
steel plate
steel
column
circular
circular steel
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CN202011243720.2A
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Chinese (zh)
Inventor
刘坚
业绪盼
鲍仕涛
刘志豪
刘畅
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Shanghai Construction No 1 Group Co Ltd
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Shanghai Construction No 1 Group Co Ltd
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Priority to CN202011243720.2A priority Critical patent/CN112392145A/en
Publication of CN112392145A publication Critical patent/CN112392145A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E04B1/21Connections specially adapted therefor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/30Columns; Pillars; Struts
    • E04C3/34Columns; 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

Abstract

The invention provides a deviation correction connecting structure of a reverse construction method double-column underpinning steel reinforced concrete frame column, which comprises a deviation correction device, wherein the deviation correction device comprises a bottom deviation correction circular steel plate, and a circular steel pipe is fixed on the bottom deviation correction circular steel plate; inserting a cross steel plate into the round steel pipe; stiffening ribs are arranged on the outer side of the round steel pipe; the top deviation correction circular steel plate is arranged on the circular steel pipe, the vertical projection area of the bottom deviation correction circular steel plate covers the vertical projection area of the corresponding concrete filled steel tubular column and the vertical projection area of the corresponding connecting steel column, and the axis of the circular steel pipe is coaxial with the axis of the corresponding connecting steel column, so that the force transmission direction is more definite; the post-cast strip space is reserved or chiseled in the steel pipes of the two steel pipe concrete columns respectively, and concrete is poured in the space inside the circular steel pipe of the deviation correcting device and the post-cast strip space of the corresponding steel pipe concrete column, so that the connection stability of the two steel pipe concrete columns is improved.

Description

Reverse construction method double-column underpinning steel reinforced concrete frame column deviation correction connection structure
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to an offset correction connecting structure for a reverse construction method double-column underpinning steel reinforced concrete frame column.
Background
At present, when a concrete filled steel tube column of a reverse basement is constructed towards an upper structure, the concrete filled steel tube column is generally required to be converted into a steel reinforced concrete frame column, namely a double-spliced cross conversion steel column. If the upper load is large, two steel pipe concrete columns may need to be adopted to bear the load of a single steel reinforced concrete frame column at the upper part together, but the steel pipe concrete columns often cannot be accurately butted with the steel reinforced concrete frame column due to the fact that the steel pipe concrete columns are deviated during construction.
Therefore, how to provide a reverse-construction double-column underpinning steel reinforced concrete frame column deviation correction connection structure capable of finishing the deviation stable butt joint of the double steel pipe concrete columns to the steel reinforced concrete frame column becomes a technical problem of further improvement and optimization in the building construction field.
Disclosure of Invention
The invention aims to provide an offset correction connecting structure for underpinning a steel reinforced concrete frame column by using a reverse construction method and solves the problems of poor offset butt joint stability, low safety and undefined force transmission from a double-column steel tube concrete column to the steel reinforced concrete frame column.
In order to solve the technical problems, the invention provides the following technical scheme:
a reverse-construction-method double-column underpinning reinforced concrete frame column deviation correction connecting structure is used for installing the reinforced concrete frame column on two steel tube concrete columns, the lower part of the reinforced concrete frame column is provided with two connecting steel columns which are respectively in butt joint with the two steel tube concrete columns, the deviation correction connecting structure comprises a deviation correction device, and the deviation correction device comprises: the steel column comprises a bottom deviation correction circular steel plate, a top deviation correction circular steel plate, circular steel pipes, a cross steel plate, a plurality of stiffening ribs and a plurality of studs, wherein the bottom deviation correction circular steel plate and the top deviation correction circular steel plate are consistent in shape and size, the vertical projection area of the bottom deviation correction circular steel plate covers the vertical projection area of the corresponding concrete-filled steel tubular column and the vertical projection area of the corresponding connecting steel column, concrete pouring air holes and circular steel plate holes are reserved in the bottom deviation correction circular steel plate and the top deviation correction circular steel plate, the circular steel pipes are fixed on the bottom deviation correction circular steel plate, and the axes of the circular steel pipes are coaxial with the axes of the corresponding connecting steel columns; inserting a cross steel plate into the round steel pipe, wherein the cross steel plate is fixedly connected with the round steel pipe and the bottom deviation correction round steel plate respectively; the outer side of the round steel pipe is provided with a stiffening rib, the stiffening rib is respectively fixed with the round steel pipe and the bottom deviation correction round steel plate, and the outer side end of the stiffening rib is consistently extended to the outer periphery of the top deviation correction round steel plate; arranging a top deviation correction circular steel plate on the circular steel pipe, so that the top deviation correction circular steel plate and the bottom deviation correction circular steel plate vertically correspond to each other; the outer peripheral surface of the round steel pipe is fixedly provided with a plurality of studs, post-cast strip spaces with the thickness of at least 10 cm are reserved or chiseled in the steel pipes of the two steel pipe concrete columns respectively, and concrete is poured in the space inside the round steel pipe of the deviation correcting device and the post-cast strip spaces of the corresponding steel pipe concrete columns through the round steel plate holes reserved on the top deviation correcting round steel plate and the round steel plate holes reserved on the bottom deviation correcting round steel plate.
Preferably, in the above-described apparatus for correcting offset of a double-column underpinned steel reinforced concrete frame column by reverse construction, the top offset correction circular steel plate is welded to the stiffening rib, the circular steel pipe, and the cross steel plate, respectively.
Preferably, in the above-described apparatus for correcting an offset of a double-column underpinning steel reinforced concrete frame column by a reverse construction method, the number of the concrete pouring vent holes is two or more.
Preferably, in the above-described apparatus for correcting misalignment of a double-column underpinned steel reinforced concrete frame column by reverse construction, the circular steel plate hole and the circular steel tube are concentrically arranged.
Preferably, in the above-described deviation correcting and connecting device for a double-column underpinning steel reinforced concrete frame column by a reverse construction method, the concrete pouring ventilation holes are uniformly arranged around the circular steel plate holes.
Preferably, in the above-described apparatus for correcting misalignment of a double-column underpinned steel reinforced concrete frame column by reverse construction, the concrete outside the circular steel tube is integrally cast with the concrete outside the connecting steel column.
Preferably, in the above-described misalignment correction coupling apparatus for underpinning a steel reinforced concrete frame column by a reverse method, the verticality of the steel reinforced concrete frame column is adjusted by controlling the position of the top misalignment correction circular steel plate of the misalignment correction apparatus.
Preferably, in the above-described apparatus for correcting misalignment of a double-column underpinned steel reinforced concrete frame column by reverse construction, the cross steel plate is welded and fixed to the circular steel pipe and the bottom misalignment correction circular steel plate, respectively.
Preferably, in the above-described apparatus for correcting misalignment of a double-column underpinned steel reinforced concrete frame column by reverse construction, the circular steel pipe is fixed to the bottom misalignment correcting circular steel plate by welding.
According to the technical scheme disclosed above, compared with the prior art, the invention has the following beneficial effects:
the utility model provides a connection structure is rectified to off normal of reverse construction method twin columns underpinning reinforcing bar concrete frame post for install reinforcing bar concrete frame post on two steel core concrete columns, the lower part of reinforcing bar concrete frame post has two connection steel columns that dock with two steel core concrete columns respectively, the off normal is rectified connection structure and is included an off normal correcting unit, off normal correcting unit includes: the steel pipe comprises a bottom deviation correcting circular steel plate, a top deviation correcting circular steel plate, a circular steel pipe, a cross-shaped steel plate, a plurality of stiffening ribs and a plurality of studs, wherein the circular steel pipe is fixed on the bottom deviation correcting circular steel plate; inserting a cross steel plate into the round steel pipe; stiffening ribs are arranged on the outer side of the round steel pipe; the method comprises the following steps that a top deviation correction circular steel plate is arranged on a circular steel pipe, so that the top deviation correction circular steel plate corresponds to a bottom deviation correction circular steel plate up and down, a vertical projection area of the bottom deviation correction circular steel plate covers a vertical projection area of a corresponding concrete-filled steel pipe column and a vertical projection area of a corresponding connecting steel column, and the axis of the circular steel pipe is coaxial with the axis of the corresponding connecting steel column, so that the force transmission direction is more definite; the outer side ends of the stiffening ribs are extended to the outer periphery of the top deviation correcting circular steel plate in a consistent manner, so that the overall strength of the deviation correcting device is improved, and the problem of local strength reduction caused by deviation of the circular steel pipe relative to the top deviation correcting circular steel plate and the bottom deviation correcting circular steel plate is solved; the post-cast strip spaces with the thickness of at least 10 cm are reserved or chiseled in the steel pipes of the two steel pipe concrete columns respectively, and the circular steel plate holes reserved on the top deviation correction circular steel plates and the circular steel plate holes reserved on the bottom deviation correction circular steel plates are utilized to pour concrete to the space inside the circular steel pipes of the deviation correction device and the post-cast strip spaces of the corresponding steel pipe concrete columns, so that the deviation correction connection device can be connected with the steel pipe concrete columns below more stably and reliably.
Drawings
Fig. 1 is a schematic view showing a state of use of an offset correction connection structure for a reverse double-column underpinning steel reinforced concrete frame column according to the present invention.
FIG. 2 is a schematic structural diagram of the misalignment correction connecting device of the present invention.
Fig. 3 is a schematic sectional view a-a of fig. 2.
Fig. 4 is a schematic sectional view B-B of fig. 2.
In the figure: the steel reinforced concrete column comprises 1-a steel reinforced concrete frame column, 1.1-a connecting steel column, 2-a steel tube concrete column, 3-an offset correction device, 4-a bottom offset correction circular steel plate, 5-a circular steel tube, 6-a cross steel plate, 7-a stiffening rib, 8-a stud, 9-a top offset correction circular steel plate, 10-a post-cast strip space, 11-a circular steel plate hole, 12-a concrete pouring vent hole and 13-concrete.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. The technical contents and features of the present invention will be described in detail below with reference to the embodiments illustrated in the accompanying drawings. It is further noted that the drawings are in greatly simplified form and are not to precise scale, merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this is not a limitation of the technical solution of the present invention.
Referring to fig. 1 to 4, the embodiment discloses an offset correction connection structure for a reverse double-column underpinning reinforced concrete frame column, which is used for installing a reinforced concrete frame column 1 on two steel pipe concrete columns 2, the lower portion of the reinforced concrete frame column 1 is provided with two connection steel columns 1.1 respectively butted with the two steel pipe concrete columns 2, the offset correction connection structure includes an offset correction device 3, and the offset correction device 3 includes: the steel column structure comprises a bottom deviation correcting circular steel plate 4, a circular steel pipe 5, a cross-shaped steel plate 6, a plurality of stiffening ribs 7, a plurality of studs 8 and a top deviation correcting circular steel plate 9, wherein the bottom deviation correcting circular steel plate 4 and the top deviation correcting circular steel plate 9 are consistent in shape and size, the vertical projection area of the bottom deviation correcting circular steel plate 4 covers the vertical projection area of the corresponding steel pipe concrete column 2 and the vertical projection area of the corresponding connecting steel column 1.1, concrete pouring air holes 12 and circular steel plate holes 11 are reserved in the bottom deviation correcting circular steel plate 4 and the top deviation correcting circular steel plate 9, the circular steel pipe 5 is fixed on the bottom deviation correcting circular steel plate 4, and the axis of the circular steel pipe 5 is coaxial with the axis of the corresponding connecting steel column 1.1; a cross steel plate 6 is inserted into the round steel pipe 5, and the cross steel plate 6 is respectively and fixedly connected with the round steel pipe 5 and the bottom deviation correction round steel plate 4; a stiffening rib 7 is arranged on the outer side of the round steel pipe 5, the stiffening rib 7 is respectively fixed with the round steel pipe 5 and the bottom deviation correction round steel plate 4, and the outer side end of the stiffening rib 7 is extended to the outer periphery of the top deviation correction round steel plate 9; a top deviation correction round steel plate 9 is arranged on the round steel pipe 5, so that the top deviation correction round steel plate 9 corresponds to the bottom deviation correction round steel plate 4 up and down; the outer peripheral surface of the round steel tube 5 is fixedly provided with a plurality of studs 8, post-cast strip spaces 10 with the thickness of at least 10 cm are reserved or chiseled in the steel tubes of the two steel tube concrete columns 2 respectively, and concrete 13 is poured in the space inside the round steel tube 5 of the deviation correcting device 3 and the post-cast strip spaces 10 of the corresponding steel tube concrete columns 2 through the round steel plate holes 11 reserved on the top deviation correcting round steel plate 9 and the round steel plate holes 11 reserved on the bottom deviation correcting round steel plate 4.
The utility model provides a connection structure is rectified to off normal of reverse construction method double column underpinning reinforced concrete frame post for install reinforced concrete frame post 1 on two steel core concrete columns 2, the lower part of reinforced concrete frame post 1 has two connection steel columns 1.1 with two steel core concrete columns 2 butt joints respectively, and off normal correction connection structure includes an off normal correcting unit 3, off normal correcting unit 3 includes: the steel pipe comprises a bottom deviation correcting circular steel plate 4, a circular steel pipe 5, a cross-shaped steel plate 6, a plurality of stiffening ribs 7, a plurality of studs 8 and a top deviation correcting circular steel plate 9, wherein the circular steel pipe 5 is fixed on the bottom deviation correcting circular steel plate 4; inserting a cross steel plate 6 into the round steel pipe 5; a stiffening rib 7 is arranged on the outer side of the round steel pipe 5; a top deviation correction circular steel plate 9 is arranged on a circular steel pipe 5, so that the top deviation correction circular steel plate 9 corresponds to a bottom deviation correction circular steel plate 4 up and down, a vertical projection area of the bottom deviation correction circular steel plate 4 covers a vertical projection area of a corresponding concrete-filled steel pipe column 2 and a vertical projection area of a corresponding connecting steel column 1.1, and the axis of the circular steel pipe 5 is coaxial with the axis of the corresponding connecting steel column 1.1, so that the force transmission direction is more definite; the outer side ends of the stiffening ribs 7 are extended to the outer periphery of the top deviation correction round steel plate 9 in a consistent manner, so that the overall strength of the deviation correction device 3 is improved, and the problem of local strength reduction caused by deviation of the round steel pipe 5 relative to the top deviation correction round steel plate 9 and the bottom deviation correction round steel plate 4 is solved; through reserving or chiseling the post-cast strip space 10 with the thickness of at least 10 cm in the steel pipes of the two steel pipe concrete columns 2 respectively, the circular steel plate hole 11 reserved on the top deviation correction circular steel plate 9 and the circular steel plate hole 11 reserved on the bottom deviation correction circular steel plate 4 are utilized to pour concrete for the space inside the circular steel pipe 5 of the deviation correction device 3 and the post-cast strip space 10 of the corresponding steel pipe concrete column 2, and therefore the deviation correction connection device can be connected with the steel pipe concrete column 2 below more stably and reliably.
In order to improve the connection reliability among the internal components of the misalignment correction device 3, i.e., the circular steel tube 5, the cross steel plate 6, the stiffening ribs 7, the bottom misalignment correction circular steel plate 4, and the top misalignment correction circular steel plate 9, and thereby improve the overall strength of the entire misalignment correction device 3, it is preferable that in the misalignment correction connection structure for the double-column underpinning reinforced concrete frame column according to the above-described reverse method, the cross steel plate 6 is flush with the circular steel tube 5, the stiffening ribs 7 are flush with the circular steel tube 5, and the top misalignment correction circular steel plate 9 is fixedly connected to the stiffening ribs 7, the circular steel tube 5, and the cross steel plate 6, respectively. Specifically, the top deviation correction circular steel plate 9 is respectively connected with the stiffening rib 7, the circular steel pipe 5 and the cross steel plate 6 in a welding mode.
Preferably, in the above-mentioned offset correction connection structure for the double-column underpinning steel reinforced concrete frame column by the reverse construction method, the circular steel plate holes 11 and the circular steel tubes 5 are concentrically arranged, so that the concrete 13 can more uniformly and rapidly flow to each region of the internal space of the circular steel tubes 5 and the post-cast strip space 10, and the concrete pouring quality is improved.
Preferably, in the deviation correcting connection structure for the double-column underpinning steel reinforced concrete frame column by the reverse construction method, the number of the concrete pouring air holes 12 is more than two, and the concrete pouring air holes 12 are uniformly arranged around the circular steel plate hole 11 so as to meet the exhaust requirement when the concrete 13 in the internal space of the circular steel pipe 5 and the post-cast strip space 10 is poured and ensure the pouring quality.
Preferably, in the above-mentioned offset-correcting connection structure for a double-column underpinning steel reinforced concrete frame column by a reverse construction method, the cross steel plate 6 is welded and fixed to the circular steel tube 5 and the bottom offset-correcting circular steel plate 4, respectively, so as to improve the connection stability between the cross steel plate 6 and the circular steel tube 5 and the bottom offset-correcting circular steel plate 4, respectively.
Preferably, in the offset-correcting connection structure of the reverse-construction double-column underpinning steel reinforced concrete frame column, the circular steel tube 5 is fixed on the bottom offset-correcting circular steel plate 4 by welding, so as to improve the connection stability between the circular steel tube 5 and the bottom offset-correcting circular steel plate 4.
Preferably, in the above-mentioned structure for correcting and connecting the offset of the double-column underpinned steel reinforced concrete frame column by the reverse method, the concrete outside the circular steel tube 5 and the concrete outside the connecting steel column 1.1 are integrally cast, so that the stability and reliability of the connection between the offset correcting device 3 and the connecting steel column 1.1 of the steel reinforced concrete frame column 1 above can be improved.
Preferably, in the deviation correcting connection structure for the reverse-construction double-column underpinning steel reinforced concrete frame column, the verticality of the steel reinforced concrete frame column 1 is adjusted by controlling the position of the top deviation correcting circular steel plate 9 of the deviation correcting device 3, and the binding of steel bars and the pouring of concrete during the integral forming pouring of the concrete outside the circular steel tube 5 and the concrete outside the connecting steel column 1.1 are not affected, so that the quality is ensured.
In summary, the invention mainly uses the deviation correction device 3 to complete the conversion butt joint from two steel pipe concrete columns 2 to a steel reinforced concrete frame column 1, namely a double-spliced cross conversion steel column; the deviation correcting device 3 is composed of a bottom deviation correcting circular steel plate 4, a circular steel pipe 5, a cross-shaped steel plate 6, a plurality of stiffening ribs 7, a plurality of studs 8 and a top deviation correcting circular steel plate 9, and the sizes of the bottom deviation correcting circular steel plate 4 and the top deviation correcting circular steel plate 9 are adjusted according to the deviation condition of the concrete-filled steel tubular column 2. Through actual engineering inspection, the method not only successfully completes the conversion butt joint of the double steel pipe concrete columns 2 to the steel reinforced concrete frame column 1, but also can complete the correction of the verticality of the steel reinforced concrete frame column 1 through the deviation correcting device 3, and the verticality of the steel reinforced concrete frame column 1 is adjusted by controlling the position of the top deviation correcting circular steel plate 9 of the deviation correcting device 3, so that the binding of steel bars and the concrete pouring are not influenced, and the quality is ensured.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.

Claims (10)

1. The utility model provides a reverse construction method double column underpins steel reinforced concrete frame post's off normal correction connection structure for install steel reinforced concrete frame post on two steel core concrete columns, the lower part of steel reinforced concrete frame post has two respectively with the connection steel column of two steel core concrete column docks, its characterized in that, off normal correction connection structure includes an off normal correcting unit, off normal correcting unit includes: the steel column comprises a bottom deviation correction circular steel plate, a top deviation correction circular steel plate, circular steel pipes, a cross steel plate, a plurality of stiffening ribs and a plurality of studs, wherein the bottom deviation correction circular steel plate and the top deviation correction circular steel plate are consistent in shape and size, the vertical projection area of the bottom deviation correction circular steel plate covers the vertical projection area of the corresponding concrete-filled steel tubular column and the vertical projection area of the corresponding connecting steel column, concrete pouring air holes and circular steel plate holes are reserved in the bottom deviation correction circular steel plate and the top deviation correction circular steel plate, the circular steel pipes are fixed on the bottom deviation correction circular steel plate, and the axes of the circular steel pipes are coaxial with the axes of the corresponding connecting steel columns; inserting a cross steel plate into the round steel pipe, wherein the cross steel plate is fixedly connected with the round steel pipe and the bottom deviation correction round steel plate respectively; the outer side of the round steel pipe is provided with a stiffening rib, the stiffening rib is respectively fixed with the round steel pipe and the bottom deviation correction round steel plate, and the outer side end of the stiffening rib is consistently extended to the outer periphery of the top deviation correction round steel plate; arranging a top deviation correction circular steel plate on the circular steel pipe, so that the top deviation correction circular steel plate and the bottom deviation correction circular steel plate vertically correspond to each other; the outer peripheral surface of the round steel pipe is fixedly provided with a plurality of studs, post-cast strip spaces with the thickness of at least 10 cm are reserved or chiseled in the steel pipes of the two steel pipe concrete columns respectively, and concrete is poured in the space inside the round steel pipe of the deviation correcting device and the post-cast strip spaces of the corresponding steel pipe concrete columns through the round steel plate holes reserved on the top deviation correcting round steel plate and the round steel plate holes reserved on the bottom deviation correcting round steel plate.
2. The apparatus of claim 1, wherein the cross steel plate is flush with the round steel pipe, the reinforcing ribs are flush with the round steel pipe, and the top deviation correcting round steel plate is fixedly connected to the reinforcing ribs, the round steel pipe, and the cross steel plate.
3. The apparatus according to claim 2, wherein the top deviation correcting circular steel plate is welded to the stiffening ribs, the circular steel pipes and the cross steel plate.
4. The apparatus of claim 1, wherein the number of the concrete pouring holes is two or more.
5. The apparatus according to claim 4, wherein the circular steel plate holes and the circular steel tubes are concentrically arranged.
6. The reverse-construction double-column underpinning steel reinforced concrete frame column deviation correcting connection device as claimed in claim 5, wherein said concrete pouring vent holes are uniformly arranged around said circular steel plate holes.
7. The apparatus of claim 1, wherein the concrete outside the circular steel tube is integrally cast with the concrete outside the connecting steel column.
8. The reverse-construction double-column underpinning steel reinforced concrete frame column deviation correcting connection device as claimed in claim 1, wherein the steel reinforced concrete frame column verticality is adjusted by controlling the position of the top deviation correcting circular steel plate of the deviation correcting device.
9. The apparatus of claim 1, wherein the cross steel plate is welded to the circular steel pipe and the bottom deviation correcting circular steel plate.
10. The apparatus of claim 1, wherein the circular steel tube is fixed to the bottom offset-correcting circular steel plate by welding.
CN202011243720.2A 2020-11-10 2020-11-10 Reverse construction method double-column underpinning steel reinforced concrete frame column deviation correction connection structure Pending CN112392145A (en)

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CN202011243720.2A CN112392145A (en) 2020-11-10 2020-11-10 Reverse construction method double-column underpinning steel reinforced concrete frame column deviation correction connection structure

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Application Number Priority Date Filing Date Title
CN202011243720.2A CN112392145A (en) 2020-11-10 2020-11-10 Reverse construction method double-column underpinning steel reinforced concrete frame column deviation correction connection structure

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CN112392145A true CN112392145A (en) 2021-02-23

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Citations (4)

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Publication number Priority date Publication date Assignee Title
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Publication number Priority date Publication date Assignee Title
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CN206144030U (en) * 2016-10-14 2017-05-03 中建八局第三建设有限公司 A variable cross section steel construction for reinforcing bar concrete
CN111691554A (en) * 2019-03-15 2020-09-22 中建五洲工程装备有限公司 Underground box type concrete pouring steel column deviation conversion structure and manufacturing method thereof

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