CN107143148B - Structure for reinforcing original frame by embedded prestress assembly type frame - Google Patents
Structure for reinforcing original frame by embedded prestress assembly type frame Download PDFInfo
- Publication number
- CN107143148B CN107143148B CN201710332159.7A CN201710332159A CN107143148B CN 107143148 B CN107143148 B CN 107143148B CN 201710332159 A CN201710332159 A CN 201710332159A CN 107143148 B CN107143148 B CN 107143148B
- Authority
- CN
- China
- Prior art keywords
- embedded
- frame
- original
- column
- embedded frame
- 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
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/027—Preventive constructional measures against earthquake damage in existing buildings
Abstract
The invention discloses a structure for reinforcing an original frame by an embedded prestress assembly type frame, wherein the embedded frame structure is positioned in the plane of the original frame structure, embedded precast beams are positioned at the upper side and the lower side of the original frame beam, embedded precast columns are positioned at the left side and the right side of the original frame column, and a prestress rib penetrates through the embedded frame beam and the embedded frame column; the embedded frame beam and the embedded frame column are respectively connected with the original frame through studs, and grouting materials are filled in the connected gaps; locally weakening the end parts of the embedded frame beam and the embedded frame column, and placing a rubber pad at the weakened position; the elastic modulus of the rubber pad is lower than that of the embedded frame component, the ductility of the rubber pad is higher than that of concrete, and the rubber pad is fixedly connected with the embedded frame structure through structural adhesive. The additional integral embedded frame structure not only contributes to the shock resistance of the reinforced integral structure by the shock resistance bearing capacity and the energy consumption capacity of the additional integral embedded frame structure, but also can improve the stress state and the deformation mode of the original frame structure, so that the shock resistance of the original structure is more fully utilized.
Description
Technical Field
The invention relates to the field of civil engineering seismic reinforcement, in particular to a structure for reinforcing an original frame by an embedded prestress assembly type frame.
Background
The additional integral substructure reinforcement utilizes the cooperative work of the additional integral substructure and the original structure, so that the integral stress state of the structure can be effectively improved, the anti-seismic performance of the structure is improved, the normal use of the building structure can be uninterrupted as far as possible during the reinforcement construction, rich building effects can be created by combining the specific conditions of the building, and the additional integral substructure reinforcement structure is an economic, reasonable and efficient structure system reinforcement structure.
At present, most of additional substructure reinforcement needs cast-in-place operation of substructure, pollution and noise are generated, and the construction period is complicated and long. In addition, additional substructure reinforcement is mostly modes such as outer subsides, because not coplanar with original structure, can have connection and collaborative work scheduling problem, and outer additional substructure has influenced the structure aesthetic measure to a certain extent.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a structure for reinforcing an original frame by an embedded prestress assembly type frame.
The technical scheme is as follows: in order to solve the technical problems, the structure for reinforcing the original frame by the embedded prestress assembly type frame comprises an original frame structure to be reinforced and an embedded frame structure, wherein the original frame structure comprises an original frame beam and an original frame column; the embedded frame beam and the embedded frame column are respectively connected with the original frame through studs, and grouting materials are filled in the connected gaps; locally weakening the end parts of the embedded frame beams and the embedded frame columns, and placing rubber pads at the weakened positions; the elastic modulus of the rubber pad is lower than that of the embedded frame component, the ductility of the rubber pad is higher than that of concrete, and the rubber pad is fixedly connected with the embedded frame structure through structural adhesive.
Wherein, the height of the embedded frame column is the net height between the original frame structure layers; the embedded frame beam is positioned between the embedded frame columns on the two sides, and the length of the embedded frame beam is equal to the sum of the net distance between the original frame columns and the height of the section of the embedded frame column which is two times less than the net distance between the original frame columns.
Corrugated pipes are embedded in the embedded frame beams and the embedded frame columns so as to stretch prestressed tendons; the embedded frame beam and the embedded frame column are reserved with connecting holes when being prefabricated, holes are formed in the corresponding positions of the original frame structure, and the connecting surfaces of the upper surface and the lower surface of the original frame beam, the left surface and the right surface of the original frame column, the embedded frame beam and the embedded frame column are all subjected to scabbling treatment so as to enhance the connecting performance of the original frame structure and the embedded frame structure.
Wherein, embedded frame roof beam, embedded frame post hoist and mount take one's place, the connecting hole counterpoint after, annotate the structural adhesive, implant connecting bolt, screw up the nut, leave 10 mm's grout seam between former frame construction and the embedded frame construction.
The embedded frame column is provided with a corrugated pipe, wherein the corrugated pipe is arranged in the embedded frame column, and the corrugated pipe is arranged at the other side of the embedded frame column; through holes are formed in the embedded frame column and the original frame column corresponding to the corrugated pipe of the embedded frame beam, and the prestressed tendons penetrate through the through holes, penetrate through the corrugated pipe of the embedded frame beam and penetrate out of the through holes on the other side; the prestressed tendons in the embedded frame beam pass through the embedded frame column, and the positions of the prestressed tendons in the beam and the column are mutually avoided.
The prestressed tendons are tensioned and anchored in the original frame component, and the installation connection of the embedded precast beams and the embedded precast columns on the other side is not influenced; the prestressed tendons can realize self-resetting of the structure.
Wherein, embedded frame roof beam, embedded frame post hookup location set up the angle steel, and the wholeness of embedded frame has been strengthened to the angle steel, and the deformation of angle steel consumes seismic energy simultaneously, controls the damage position, and easily change after the earthquake.
Has the advantages that: the structure for reinforcing the original frame by the embedded prestress assembly type frame has the following beneficial effects:
1. the additional integral embedded frame structure not only contributes to the shock resistance of the reinforced integral structure by the shock resistance bearing capacity and the energy consumption capacity of the additional integral embedded frame structure, but also can improve the stress state and the deformation mode of the original frame structure, so that the structure forms a more reasonable damage yield mechanism, and the shock resistance of the original structure is more fully utilized.
2. The prefabricated embedded frame structure is connected with the original structure in the plane and works cooperatively; the bidirectional prestressed tendons embedded into the frame structure realize self-resetting of the structure, the rubber pads reduce local damage of the corners of the components, and the angle steel realizes energy consumption of the structure; the reinforced structure has small influence on indoor activities and building lighting, less field wet operation, centralized damage positions of components, easy replacement and certain application prospect.
Drawings
FIG. 1 is a schematic view of an embedded frame beam and an embedded frame column according to the present invention;
FIG. 2 is a schematic view of the attachment of the iframe of the present invention;
FIG. 3 is a detail view of the attachment of the drop frame of the present invention;
FIG. 4 is a front view of an interior frame attachment of the present invention;
FIG. 5 is a schematic view showing the completion of the connection of the inner frame according to the present invention;
FIG. 6 is a detail view of the attachment completion of the iframe in the present invention;
FIG. 7 is a completed front view of the attachment of the iframe of the present invention;
FIG. 8 is a detailed view of the construction of the embedded frame node of the present invention, in which the original frame and bolts are hidden;
FIG. 9 is an overview of the reinforcement of the iframe of the present invention;
FIG. 10 is an overall effect diagram of the embedded frame of the present invention, in which rubber pads, angle steels and bolts are hidden;
FIG. 11 is a front view of the entire interior frame of the present invention, with rubber pads, angles, and bolts hidden;
FIG. 12 is a schematic diagram of the original frame of the present invention;
FIG. 13 is a schematic view showing the completion of reinforcement of the original frame according to the present invention;
FIG. 14 is a finished front view of the original frame reinforcement of the present invention;
in the figure: 1-original frame structure, 2-embedded frame structure, 3-embedded precast beam, 4-embedded precast column, 5-original frame beam, 6-original frame column, 7-rubber pad, 8-angle steel, 9-embedded precast beam weakening surface, 10-embedded precast column weakening surface, 11-prestressed tendon in embedded precast beam, 12-prestressed tendon in embedded precast column, 13-connecting bolt, 14-nut, 15-grouting material, 16-structural adhesive, 17-corrugated pipe, 18-connecting hole and 19-through hole.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The invention discloses a structure for reinforcing an original frame by an embedded prestress assembly type frame, which has the following inventive thought: the embedded precast beam 3 and the embedded precast column 4 are connected with the original frame structure 1 in the plane and work cooperatively, the prestressed ribs 11 in the embedded precast beam and the prestressed ribs 12 in the embedded precast column realize the self-resetting of the structure, the rubber pads 7 reduce the local damage of the corner parts of the components, and the angle steel 8 realizes the energy consumption of the structure;
as shown in fig. 1-8, the present invention includes an original frame structure 1 to be reinforced, an embedded frame structure 2, and a connecting bolt 13 therebetween. The embedded frame structure 2 is located in the plane of the original frame structure 1, the embedded frame beams 3 are located on the upper side and the lower side of the original frame beams 5, the embedded frame columns 4 are located on the left side and the right side of the original frame columns 6, and the prestressed ribs 11 and 12 in the embedded precast beams penetrate through the embedded frame beams 3 and the embedded frame columns 4. The embedded frame structure 2 is connected with the original frame 1 through the studs 13, and the gap is filled with grouting material 15. The height of the embedded frame column 4 is the net height between the layers of the original frame structure 1; the embedded frame beam 3 is positioned between the embedded frame columns 4 on the two sides, and the length of the embedded frame beam is equal to the sum of the net distance of the original frame column 6 and the section height of the embedded frame column 4 subtracted by two times.
The end parts of the embedded frame beam 3 and the embedded frame column 4 are locally weakened, and a rubber pad 7 is placed on a prefabricated beam weakening surface 9 and an embedded prefabricated column weakening surface 10; the elastic modulus of the rubber pad 7 is lower than that of the embedded frame structure 2 component, the ductility is higher than that of concrete, and the rubber pad is fixedly connected with the embedded frame structure 2 through structural adhesive 16. When the embedded frame structure 2 member is prefabricated, reinforcing bars are arranged according to the requirements of concrete structure design specifications (GB 50010-2010) according to the structure; the corrugated pipe 17 is embedded in the embedded frame structure 2 component, so that the prestressed tendons 11 in the embedded precast beam and the prestressed tendons 12 in the embedded precast column can be tensioned.
The embedded frame structure 2 is prefabricated with a reserved connecting hole 18, the connecting hole 18 is drilled at the corresponding position of the original frame 1, and the connecting hole 18 is positioned to avoid longitudinal bars, stirrups and structural bars inside the original frame structure 1 and the embedded frame structure 2. The upper and lower surfaces of the original frame beam 5, the left and right surfaces of the original frame column 6 and the connection surface of the embedded frame structure 2 are properly roughened so as to enhance the connection performance of the original frame 1 and the embedded frame structure 2. After the embedded frame beam 3 and the embedded frame column 4 are hoisted in place and the connecting holes 18 are aligned, structural adhesive 16 is injected, the connecting bolt 13 is implanted, the nut 14 is screwed, and a 10mm grouting joint is reserved between the original frame 1 and the embedded frame structure 2.
A through hole 19 is formed in the original frame beam 5 corresponding to the corrugated pipe 17 of the embedded frame column 4, and the prestressed tendon 12 in the embedded prefabricated column penetrates through the through hole 19, penetrates through the corrugated pipe 17 of the embedded frame column 4 and penetrates out of the through hole 19 on the other side; through holes 19 are formed in the embedded frame column 4 and the original frame column 6 corresponding to the corrugated pipe 17 of the embedded frame beam 3, and the prestressed tendons 11 in the embedded precast beam penetrate through the through holes 19, penetrate through the corrugated pipe 17 of the embedded frame beam 3 and penetrate out of the through holes 19 on the other side; the prestressed tendon 11 in the embedded frame beam 3 passes through the embedded frame column 4, and the positions of the prestressed tendon 11 in the embedded precast beam and the prestressed tendon 12 in the embedded precast column are mutually avoided. Tensioning the prestressed tendons 11 in the embedded precast beam and the prestressed tendons 12 in the embedded precast column, properly processing the positions of the through holes 19 on the surface of the original frame 1, and embedding the anchoring ends of the prestressed tendons 11 in the embedded precast beam and the prestressed tendons 12 in the embedded precast column into the components of the original frame structure 1; the prestressed tendons 11 in the embedded precast beam and the prestressed tendons 12 in the embedded precast column can realize self-resetting of the structure.
And after the connecting bolts 13 are connected with the prestressed tendons 11 in the embedded precast beams and the prestressed tendons 12 in the embedded precast columns, sealing the joints by adopting cement mortar and pouring the mixed grouting material 15 into the grouting joints. The grouting material 15 has strong fluidity and excellent self-compaction performance, so that all gaps can be filled without stirring after the grouting material 15 is grouted.
The angle steel 8 is placed at embedded frame beam 3, embedded frame post 4 hookup location, and embedded frame structure 2's wholeness has been strengthened to angle steel 8, and 8 deformation of angle steel consume seismic energy simultaneously, control damage position, and easily change after the earthquake.
As shown in fig. 9-13, the embedded prefabricated frame 2 is connected with the original frame structure 1 in the plane, and the structures cooperate after being reinforced; the self-resetting of the structure is realized by the prestressed tendons 11 in the embedded precast beams and the prestressed tendons 12 in the embedded precast columns in the embedded frame structure 2, the local damage of the corner parts of the components is reduced by the rubber pads 7, and the energy consumption of the structure is realized by the angle steel 8; the reinforcing method has small influence on indoor activities and building lighting, less field wet operation, centralized damage positions of components and easy replacement.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (7)
1. The utility model provides a structure of former frame of embedded prestressing force assembled frame reinforcement, includes the former frame construction, the embedded frame construction of treating reinforced (rfd), its characterized in that: the original frame structure comprises an original frame beam and an original frame column, the embedded frame structure comprises an embedded precast beam and embedded precast columns, the embedded frame structure is located in the plane of the original frame structure, the embedded precast beams are located on the upper side and the lower side of the original frame beam, the embedded precast columns are located on the left side and the right side of the original frame column, and the prestressed tendons penetrate through the embedded frame beam and the embedded frame column; the embedded frame beam and the embedded frame column are respectively connected with the original frame through studs, and grouting materials are filled in the connected gaps; locally weakening the end parts of the embedded frame beam and the embedded frame column, and placing a rubber pad at the weakened position; the elastic modulus of the rubber pad is lower than that of the embedded frame component, the ductility of the rubber pad is higher than that of concrete, and the rubber pad is fixedly connected with the embedded frame structure through structural adhesive.
2. The structure of the embedded prestressed fabricated frame reinforced original frame according to claim 1, wherein: the height of the embedded frame column is the net height between the original frame structure layers; the embedded frame beam is positioned between the embedded frame columns on the two sides, and the length of the embedded frame beam is equal to the sum of the net distance between the original frame columns and the height of the section of the embedded frame column which is two times less than the net distance between the original frame columns.
3. The structure of the embedded prestressed fabricated frame reinforced original frame according to claim 1, wherein: corrugated pipes are embedded in the embedded frame beams and the embedded frame columns so as to stretch prestressed tendons; and reserving connecting holes when the embedded frame beam and the embedded frame column are prefabricated, punching holes at corresponding positions of the original frame structure, and roughening the upper surface and the lower surface of the original frame beam, the left surface and the right surface of the original frame column, the connecting surfaces of the embedded frame beam and the embedded frame column.
4. The structure of the embedded prestressed fabricated frame reinforced original frame according to claim 1, wherein: and after the embedded frame beam and the embedded frame column are hoisted in place and the connecting holes are aligned, structural glue is injected, connecting bolts are implanted, nuts are screwed down, and a 10mm grouting joint is reserved between the original frame structure and the embedded frame structure.
5. The structure of the embedded prestressed fabricated frame reinforced original frame according to claim 3, wherein: a through hole is formed in the original frame beam corresponding to the corrugated pipe in the embedded frame column, and the prestressed tendon penetrates through the through hole, penetrates through the corrugated pipe of the embedded frame column and penetrates out of the through hole on the other side; through holes are formed in the embedded frame column and the original frame column corresponding to the corrugated pipe of the embedded frame beam, and the prestressed tendons penetrate through the through holes, penetrate through the corrugated pipe of the embedded frame beam and penetrate out of the through holes on the other side; the prestressed tendons in the embedded frame beam pass through the embedded frame column, and the positions of the prestressed tendons in the beam and the column are mutually avoided.
6. The structure of the embedded prestressed fabricated frame reinforced original frame as claimed in claim 5, wherein: the prestressed tendons are tensioned and anchored in the original frame component, and the installation connection of the embedded precast beam and the embedded precast column on the other side is not influenced; the prestressed tendons can realize self-resetting of the structure.
7. The structure of the embedded prestressed fabricated frame reinforced original frame according to claim 1, wherein: and the connecting positions of the embedded frame beams and the embedded frame columns are provided with angle steels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710332159.7A CN107143148B (en) | 2017-05-12 | 2017-05-12 | Structure for reinforcing original frame by embedded prestress assembly type frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710332159.7A CN107143148B (en) | 2017-05-12 | 2017-05-12 | Structure for reinforcing original frame by embedded prestress assembly type frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107143148A CN107143148A (en) | 2017-09-08 |
| CN107143148B true CN107143148B (en) | 2022-07-29 |
Family
ID=59777979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710332159.7A Active CN107143148B (en) | 2017-05-12 | 2017-05-12 | Structure for reinforcing original frame by embedded prestress assembly type frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107143148B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3992401B2 (en) * | 1999-05-11 | 2007-10-17 | 株式会社竹中工務店 | Seismic reinforcement method for existing buildings with RC seismic walls |
| CN101839073B (en) * | 2010-04-15 | 2011-12-07 | 北京交通大学 | Anti-seismic reinforcing method for multi-ribbed composite wall |
| CN101864846B (en) * | 2010-06-18 | 2011-07-27 | 北京工业大学 | Embedded shock-absorption steel frame for seismic hardening |
| CN103711330B (en) * | 2013-12-30 | 2016-01-20 | 北京工业大学 | A kind of prestressing force assembling precast reinforced concrete frame reinforces the method for existing structure |
| CN204456942U (en) * | 2015-03-11 | 2015-07-08 | 济南大学 | The strenthening member of branched some prestressing without bondn CFRP plate |
| CN206942186U (en) * | 2017-05-12 | 2018-01-30 | 东南大学 | Embedded prestressing force assembling frame reinforces the structure of former framework |
-
2017
- 2017-05-12 CN CN201710332159.7A patent/CN107143148B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107143148A (en) | 2017-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104032840B (en) | The prestressing force assembling frame node connecting structure of additional angle steel | |
| CN109469202A (en) | Prestressed assembly integral concrete frame structure system and construction method thereof | |
| CN107152097B (en) | External prestress assembly type energy dissipation frame reinforcing structure with cantilever plate frame | |
| CN107165272A (en) | Prestressing force assembly concrete frame joint attachment structure and its construction method | |
| CN203213282U (en) | Fabricated reinforced concrete frame structure system | |
| CN103195170A (en) | Prefabricated reinforced concrete frame structure system | |
| CN204645273U (en) | A kind of prestressing force Self-resetting concrete space frame node | |
| CN107119799B (en) | Beam-end friction energy-consumption prestress assembly type node structure and construction method thereof | |
| CN103397705A (en) | Connection structure of building composite floor slab and steel bar truss shear wall | |
| CN103711330B (en) | A kind of prestressing force assembling precast reinforced concrete frame reinforces the method for existing structure | |
| CN103741958A (en) | Method for reinforcing existing building by peripheral assembled substructure | |
| CN110258789A (en) | A kind of beam-column connection and its construction method that energy consumption rod iron is replaceable | |
| CN103711329A (en) | Method for reinforcing structure by means of method of externally attaching steel-reinforced concrete framework | |
| CN203924364U (en) | The prestressing force assembling frame structure node syndeton of additional angle steel | |
| CN106930436B (en) | Reinforced concrete shear wall with built-in prestressed steel diagonal bracing | |
| CN207003673U (en) | A kind of connecting node of beam and wallboard | |
| CN110067401A (en) | A kind of existing masonry structure is reinforced using prefabricated board wall and its construction method | |
| CN206941799U (en) | The prestressing force assembling type node construction of beam-ends friction energy-dissipating | |
| CN111719693A (en) | Prestress assembly type steel-concrete sleeved beam-column joint | |
| CN111749364A (en) | Assembly type composite wall based on C-shaped steel and construction method thereof | |
| CN105040855B (en) | Prefabricated shear wall welded end plate and horizontal section steel combined connection apparatus | |
| CN107143148B (en) | Structure for reinforcing original frame by embedded prestress assembly type frame | |
| WO2020098452A1 (en) | Anti-seismic and energy-consuming fabricated beam-column joint structure located in plastic zone | |
| CN111335467A (en) | Self-resetting node connecting structure and assembling method for beam column of assembled concrete frame | |
| CN203603523U (en) | Structure for transforming inner portion of old factory building in floor adding mode |
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 |