CN113882704B - Method for additionally arranging supporting point column under beam - Google Patents
Method for additionally arranging supporting point column under beam Download PDFInfo
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- CN113882704B CN113882704B CN202111104945.4A CN202111104945A CN113882704B CN 113882704 B CN113882704 B CN 113882704B CN 202111104945 A CN202111104945 A CN 202111104945A CN 113882704 B CN113882704 B CN 113882704B
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- beam section
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- supporting assembly
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- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5806—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile
- E04B1/5812—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile of substantially I - or H - form
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
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- 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
-
- 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
- E04G23/0266—Enlarging
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/0452—H- or I-shaped
Abstract
The invention discloses a method for additionally arranging a fulcrum column under a beam, which comprises the following steps: pre-planting reinforcing steel bars at positions of the reinforced beams, which are additionally provided with the fulcrum columns; arranging a first supporting assembly, a second supporting assembly and a splicing top supporting beam below the reinforced beam, wherein the splicing top supporting beam comprises a first beam section, a second beam section and a third beam section, transversely placing the splicing top supporting beam on the first supporting assembly and the second supporting assembly, and vertically penetrating a pre-planted steel bar through a steel bar pre-perforation; jacking the spliced top-supported cross beam through jacking equipment arranged on the first supporting assembly and the second supporting assembly, wherein a second beam section of the spliced top-supported cross beam exerts pre-stress on the reinforced beam; pouring the added branch point column, and pouring the second beam section in the branch point column during pouring; and dismantling the first support assembly, the second support assembly, the first beam section and the third beam section. The invention can be used for adding the permanent reinforced concrete column supporting point which can work cooperatively to the existing structure, and reduces the difficulty of reforming and reinforcing engineering.
Description
Technical Field
The invention is used in the field of municipal engineering, and particularly relates to a method for additionally arranging a fulcrum column below a beam.
Background
With social development, scenes of adding floors, expanding construction, changing purposes and prolonging service life through reinforcing and modifying existing buildings are more and more, but the difficulty of modifying and modifying reinforcing engineering is high, the requirement is high, and effective and reliable reinforcing and modifying combination and method need to be continuously researched and developed.
Disclosure of Invention
The invention aims to solve at least one of the technical problems in the prior art, and provides a method for additionally arranging a fulcrum column under a beam, which can be used for additionally arranging a permanent reinforced concrete column fulcrum capable of working cooperatively on the existing structure, reducing the difficulty of reconstruction and reinforcement engineering, ensuring the safety in the reinforcement engineering and increasing the reliability and durability of the reinforcement engineering.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a method for additionally arranging a supporting point column under a beam comprises the following steps:
pre-planting reinforcing steel bars at positions of the reinforced beam additionally provided with the fulcrum columns;
arranging a first supporting assembly, a second supporting assembly and a splicing top supporting cross beam below the reinforced beam, wherein the splicing top supporting cross beam comprises a first beam section, a second beam section and a third beam section, the second beam section is connected between the first beam section and the third beam section to form the splicing top supporting cross beam, one end of the second beam section is detachably connected with the first beam section, the other end of the second beam section is detachably connected with the third beam section, the second beam section is provided with a steel bar pre-perforation hole, the splicing top supporting cross beam is transversely placed on the first supporting assembly and the second supporting assembly, the first supporting assembly is supported at the bottom of the first beam section, the second supporting assembly is supported at the bottom of the third beam section, and the pre-planted steel bars vertically penetrate through the steel bar pre-perforation hole;
jacking the spliced top-supported cross beam through jacking equipment arranged on the first support assembly and the second support assembly, wherein a second beam section of the spliced top-supported cross beam exerts pre-stress on the reinforced beam, so that the reinforced beam generates an upward inverted arch;
pouring an additional fulcrum column, wherein a second beam section of the spliced top-supported beam is poured into the fulcrum column during pouring;
and dismantling the first support component, the second support component and the first beam section and the third beam section of the splicing top support beam.
In some embodiments, the first beam section, the second beam section and the third beam section are all made of i-steel, and the first beam section, the second beam section and the third beam section are all provided with reinforcing ribs.
In some embodiments, the second beam section is provided with a top support for jacking the reinforced beam.
In some embodiments, the first beam section is provided with a first end plate at one end connected with the second beam section, the second beam section is provided with a second end plate at one end connected with the first beam section, and the first end plate and the second end plate are in fit butt joint and are fastened through a plurality of bolts.
In some embodiments, the second beam section is provided with a third end plate at an end connected with the third beam section, the third beam section is provided with a fourth end plate at an end connected with the second beam section, and the third end plate and the fourth end plate are butted and fastened through a plurality of bolts.
In some embodiments, the first support assembly comprises a first temporary steel support, a first jack is arranged at the top of the first temporary steel support, and the first jack is supported at the bottom of the first beam section.
In some embodiments, the second support assembly comprises a second temporary steel support, the top of which is provided with a second jack, the second jack being supported at the bottom of the third beam section.
In some embodiments, the first jack and the second jack synchronously jack the splicing top beam.
In some embodiments, before the additional branch point column is poured, the steel bars of the branch point column and the steel bars pre-planted by the reinforced beam are connected and bound.
In some embodiments, after removing the first beam section and the third beam section of the spliced top-supported beam, the part of the second beam section exposed out of the supporting point column is cut off, and the outer surface of the added supporting point column is processed.
One of the above technical solutions has at least one of the following advantages or beneficial effects: the splicing top-supported beam can be assembled, disassembled and reused, can reserve a reinforcing steel bar to pass through a binding position, can stay in the additionally-arranged fulcrum column and does not influence the construction of the reinforced concrete column, and the existing structure is additionally provided with the cooperative fulcrum, so that a new reinforcing method is provided for the reinforcing and modifying project. The method is simple and convenient in site construction, has little influence on the original structure, has little workload of transformation, low cost, safety, reliability, good durability, strong cooperative work effect and flexible use, ensures the safety in the reinforcement project, increases the reliability and the durability of the reinforcement project, and can be widely used in the reinforcement and transformation project.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a spliced top supported beam structure according to one embodiment of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view taken at A-A in FIG. 1;
FIG. 3 is a schematic view of the embodiment shown in FIG. 1, wherein reinforcing bars are pre-planted at positions of the added fulcrum columns of the reinforced beam, and a first support assembly and a second support assembly are arranged below the reinforced beam;
FIG. 4 is a schematic view of the embodiment of FIG. 1 with a spliced top support beam positioned laterally to the first and second support assemblies and with pre-stressing of the reinforced beam;
FIG. 5 is a schematic view of an embodiment of the additional anchor post of FIG. 1;
FIG. 6 is a schematic illustration of the embodiment of FIG. 1 with the first support assembly, the second support assembly, and the first and third beam sections of the spliced top beam removed;
FIG. 7 is a schematic view of the embodiment of FIG. 1 after completion of the construction of the anchor post.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, preferred embodiments of which are illustrated in the accompanying drawings, wherein the drawings are provided for the purpose of visually supplementing the description in the specification and so forth, and which are not intended to limit the scope of the invention.
In the present invention, if directions (up, down, left, right, front, and rear) are described, it is only for convenience of describing the technical solution of the present invention, and it is not intended or implied that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, it is not construed as limiting the present invention.
In the invention, the meaning of "a plurality of" is one or more, the meaning of "a plurality of" is more than two, and the meaning of "more than", "less than", "more than" and the like is understood to not include the number; "above", "below", "within" and the like are understood to include the present numbers. In the description of the present invention, if there are descriptions of "first" and "second" for the purpose of distinguishing technical features only, they are not interpreted as indicating or implying relative importance or implicitly indicating the number of the technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the present invention, unless otherwise specifically limited, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can be detachably connected and can be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The technical field can reasonably determine the specific meaning of the words in the invention by combining the specific contents of the technical scheme.
Fig. 3 to 5 show a reference direction coordinate system of the embodiment of the present invention, and the embodiment of the present invention will be described below with reference to the directions shown in fig. 3 to 5.
The embodiment of the invention provides a method for additionally arranging a supporting point column below a beam, which is mainly completed by using a splicing top-support beam, and referring to fig. 1 and 2, the splicing top-support beam comprises a first beam section 1, a second beam section 2 and a third beam section 3, the second beam section 2 is connected between the first beam section 1 and the third beam section 3 to form the splicing top-support beam, one end of the second beam section 2 is detachably connected with the first beam section 1, and the other end of the second beam section 2 is detachably connected with the third beam section 3, so that the first beam section 1 and the third beam section 3 can be separated from the second beam section 2 to realize turnover and recycling after the construction of the supporting point column is completed. Second beam segment 2 accomplishes the construction back at the fulcrum post, and second beam segment 2 is pour inside the fulcrum post, and second beam segment 2 is equipped with the reinforcing bar that supplies the fulcrum post and follows the vertical reinforcing bar of passing and perforates 5 in advance.
With reference to fig. 3 to 6, the method for adding a supporting point column under the beam includes the following steps:
pre-planting reinforcing steel bars 18 at the positions of the reinforced beam 16 where the supporting point columns are additionally arranged;
arranging a first supporting assembly 14, a second supporting assembly 15 and a splicing top supporting beam below a reinforced beam 16, transversely placing the splicing top supporting beam on the first supporting assembly 14 and the second supporting assembly 15, supporting the first supporting assembly 14 at the bottom of a first beam section 1, supporting the second supporting assembly 15 at the bottom of a third beam section 3, and vertically penetrating a pre-planted steel bar 18 through a steel bar pre-perforation 5;
jacking the spliced top-supported cross beam through jacking equipment arranged on the first support assembly 14 and the second support assembly 15, wherein the second beam section 2 of the spliced top-supported cross beam exerts pre-stress on the reinforced beam 16, so that the reinforced beam 16 generates an upward inverted arch;
pouring the additionally arranged fulcrum column 17, wherein the second beam section 2 of the spliced top-supported beam is poured into the fulcrum column 17 during pouring, and the first beam section 1 and the third beam section 3 are left outside the contour of the fulcrum column 17;
the first support assembly 14, the second support assembly 15 and the first beam section 1 and the third beam section 3 of the spliced top support beam are removed.
The embodiment of the invention provides a new reinforcing method for the existing structure by adding the cooperative working fulcrum to the existing structure by adopting the splicing top-supported beam which can be assembled, disassembled and reused, can reserve the reinforcing steel bar to pass through the binding position, can be left in the additionally-arranged fulcrum column and does not influence the construction of the reinforced concrete column. The method is simple and convenient in site construction, has little influence on the original structure, has little workload of transformation, low cost, safety, reliability, good durability, strong cooperative work effect and flexible use, ensures the safety in the reinforcement project, increases the reliability and durability of the reinforcement project, and can be widely used in the reinforcement and transformation project.
In some embodiments, the first beam section 1, the second beam section 2 and the third beam section 3 may be steel beams or composite beams, for example, referring to fig. 1 and 2, the first beam section 1, the second beam section 2 and the third beam section 3 are all made of i-shaped steel, and the i-shaped steel has high bearing capacity and can meet the requirement of applying and maintaining prestress on the spliced top-supported cross beam.
Further, in order to further improve the bearing capacity of the i-shaped steel, referring to fig. 1 and 2, the first beam section 1, the second beam section 2 and the third beam section 3 are provided with reinforcing ribs 6.
In order to facilitate the application of a pre-stressing force to the reinforced beam, the reinforced beam may be inverted upwards by providing a boss at the bottom of the reinforced beam or a boss at the top of the spliced top-supported beam, for example, in some embodiments as shown in fig. 1 and 2, the top of the second beam section 2 is provided with a top support 4 for jacking the reinforced beam 16, the top support 4 is welded to the top of the second beam section 2, and the top support 4 serves as a pivot point of the spliced top-supported beam towards the reinforced beam for better applying a pre-stressing force to the reinforced beam. The top support 4 and the second beam section 2 form a whole, and after the fulcrum column 17 is poured, the top support and the second beam section 2 are retained inside the fulcrum column 17.
Can adopt modes such as bolt, joint, cup joint, buckle to realize dismantling between first roof beam section 1 and the second roof beam section 2 and connect, for example in some embodiments, see fig. 1, fig. 2, first roof beam section 1 is equipped with first end plate 7 in the one end of being connected with second roof beam section 2, second roof beam section 2 is equipped with second end plate 8 in the one end of being connected with first roof beam section 1, first end plate 7 and second end plate 8 are equipped with the bolt hole in corresponding the position, first end plate 7 and the laminating butt joint of second end plate 8 are fastened through a plurality of bolts 9. First roof beam section 1 passes through the end plate with second roof beam section 2 and forms the flange, the length direction of first end plate 7 and second end plate 8 perpendicular to crossbeam, and first end plate 7 and second end plate 8 have smooth butt joint face, and the transmission of first roof beam section 1 to 2 powers of second roof beam section of realization that can be better both guarantees the convenience of dismantling, guarantees the structural strength of whole crossbeam again.
The second beam section 2 and the third beam section 3 can be detachably connected by bolts 9, clamping, sleeving, fastening, etc., for example, in some embodiments, referring to fig. 1 and 2, the second beam section 2 is provided with a third end plate 10 at one end connected to the third beam section 3, the third beam section 3 is provided with a fourth end plate 11 at one end connected to the second beam section 2, and the third end plate 10 and the fourth end plate 11 are butted and fastened by a plurality of bolts 9. The transmission of second roof beam section 2 to 3 power of third roof beam section is realized, both guaranteed the convenience of dismantling, guarantee the structural strength of whole crossbeam again.
In some embodiments, in order to ensure that the second beam section 2 is located at the middle position of the whole splicing top-supported beam and to facilitate the placement and positioning of the splicing top-supported beam on the supporting assembly, the first beam section 1 and the third beam section 3 have the same length.
Wherein, first supporting component 14 includes first interim steel shotcrete, and first interim steel shotcrete top sets up first jack 12, and first jack 12 is as the jacking equipment of first supporting component side, and first jack 12 supports in the bottom of first roof beam section 1. The second supporting assembly 15 comprises a second temporary steel support, the second jack 13 serves as jacking equipment on the side of the second supporting assembly, the second jack 13 is arranged on the top of the second temporary steel support, and the second jack 13 is supported at the bottom of the third beam section 3.
In order to ensure that the splicing top beam exerts stable jacking force on the reinforced beam and ensure the stability of the splicing top beam in the jacking process, the first jack 12 and the second jack 13 synchronously jack the splicing top beam, and the two ends of the splicing top beam are kept at the same height as much as possible in the jacking process.
Referring to fig. 5, in some embodiments, the supporting point column 17 is made of reinforced concrete, and a space and a position are reserved for facilitating the later reinforcing bar planting process, before the additional supporting point column is poured, the reinforcing bars of the supporting point column 17 and the reinforcing bars pre-planted in the reinforced beam are connected and bound, and then concrete pouring is performed, so that the connection strength between the reinforced beam 16 and the supporting point column 17 is fully ensured. In view of the fact that the reinforced beam 16 is mainly of a reinforced concrete structure, the embodiment tries to keep the consistency of the front and rear reinforcing structural forms and practices to be more beneficial to the reinforcing effect.
In some embodiments, referring to fig. 7, after removing the first beam section 1 and the third beam section 3 of the spliced top-supported beam, the portion of the second beam section 2 exposed out of the supporting point column 17 is cut off, and the outer surface of the additional supporting point column 17 is treated to ensure the quality of the outer surface of the supporting point column 17.
In the description herein, references to "an example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope of the claims of the present application.
Claims (9)
1. A method for additionally arranging a supporting point column under a beam is characterized by comprising the following steps:
pre-planting reinforcing steel bars at positions of the reinforced beam additionally provided with the fulcrum columns;
arranging a first supporting assembly, a second supporting assembly and a splicing top supporting cross beam below the reinforced beam, wherein the splicing top supporting cross beam comprises a first beam section, a second beam section and a third beam section, the second beam section is connected between the first beam section and the third beam section to form the splicing top supporting cross beam, one end of the second beam section is detachably connected with the first beam section, the other end of the second beam section is detachably connected with the third beam section, the second beam section is provided with a steel bar pre-perforation hole, the splicing top supporting cross beam is transversely placed on the first supporting assembly and the second supporting assembly, the first supporting assembly is supported at the bottom of the first beam section, the second supporting assembly is supported at the bottom of the third beam section, and the pre-planted steel bars vertically penetrate through the steel bar pre-perforation hole;
synchronously jacking the splicing top-supported cross beam through jacking equipment arranged on the first supporting assembly and the second supporting assembly, wherein a second beam section of the splicing top-supported cross beam exerts pre-stress on the reinforced beam, and a top support for jacking the reinforced beam is arranged at the top of the second beam section, so that the reinforced beam generates an upward inverted arch;
pouring the added branch point column, and pouring the second beam section of the spliced top branch beam into the branch point column during pouring;
and dismantling the first support component, the second support component and the first beam section and the third beam section of the splicing top support beam.
2. The method for additionally arranging the fulcrum column below the beam according to claim 1, wherein the first beam section, the second beam section and the third beam section are all made of I-steel, and the first beam section, the second beam section and the third beam section are all provided with reinforcing ribs.
3. The method for adding a supporting point column under a beam as claimed in claim 1, wherein the first beam section is provided with a first end plate at one end connected with the second beam section, the second beam section is provided with a second end plate at one end connected with the first beam section, and the first end plate and the second end plate are butted in a fitting manner and fastened through a plurality of bolts.
4. The method for adding a fulcrum column under a beam according to claim 1, wherein the second beam section is provided with a third end plate at one end connected with the third beam section, the third beam section is provided with a fourth end plate at one end connected with the second beam section, and the third end plate and the fourth end plate are butted and fastened by a plurality of bolts.
5. The method for adding a supporting point column under a beam according to claim 1, wherein the first supporting component comprises a first temporary steel support, a first jack is arranged at the top of the first temporary steel support, and the first jack is supported at the bottom of the first beam section.
6. The method for additionally arranging the fulcrum column under the beam as claimed in claim 5, wherein the second supporting assembly comprises a second temporary steel support, a second jack is arranged on the top of the second temporary steel support, and the second jack is supported on the bottom of the third beam section.
7. The method for additionally arranging a supporting point column under a beam as claimed in claim 6, wherein the first jack and the second jack synchronously lift the spliced jacking cross beam.
8. The method for adding the branch point column under the beam according to claim 1, wherein before the added branch point column is poured, the steel bars of the branch point column and the steel bars pre-planted by the reinforced beam are connected and bound.
9. The method for additionally arranging a supporting post under a beam according to claim 1, wherein after the first beam section and the third beam section of the spliced top beam are removed, the part of the second beam section exposed out of the supporting post is cut off, and the outer surface of the additionally arranged supporting post is treated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111104945.4A CN113882704B (en) | 2021-09-22 | 2021-09-22 | Method for additionally arranging supporting point column under beam |
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| CN202111104945.4A CN113882704B (en) | 2021-09-22 | 2021-09-22 | Method for additionally arranging supporting point column under beam |
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| CN113882704B true CN113882704B (en) | 2023-01-24 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888275A (en) * | 2015-01-04 | 2016-08-24 | 陈力 | Beam repairing system for reinforcement after prestress generated by pressurization of jack |
| CN105926963A (en) * | 2016-05-04 | 2016-09-07 | 浙江省建筑设计研究院 | Vertical supporting method of underground top-down storey addition of existing high-rise building |
| CN106894523A (en) * | 2017-05-03 | 2017-06-27 | 河南科技大学 | A kind of connecting node of rectangular steel-tube concrete column and girder with rolled steel section en cased in concrete |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3832581B2 (en) * | 2002-11-22 | 2006-10-11 | 克彦 今井 | RC braceless seismic reinforcement method for RC construction |
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2021
- 2021-09-22 CN CN202111104945.4A patent/CN113882704B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888275A (en) * | 2015-01-04 | 2016-08-24 | 陈力 | Beam repairing system for reinforcement after prestress generated by pressurization of jack |
| CN105926963A (en) * | 2016-05-04 | 2016-09-07 | 浙江省建筑设计研究院 | Vertical supporting method of underground top-down storey addition of existing high-rise building |
| CN106894523A (en) * | 2017-05-03 | 2017-06-27 | 河南科技大学 | A kind of connecting node of rectangular steel-tube concrete column and girder with rolled steel section en cased in concrete |
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| CN113882704A (en) | 2022-01-04 |
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