CN109972852A - It is a kind of that building-block structure and its construction method are reinforced using vertical through holes merging prestressed anchor pressure grouting - Google Patents
It is a kind of that building-block structure and its construction method are reinforced using vertical through holes merging prestressed anchor pressure grouting Download PDFInfo
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- CN109972852A CN109972852A CN201910231003.9A CN201910231003A CN109972852A CN 109972852 A CN109972852 A CN 109972852A CN 201910231003 A CN201910231003 A CN 201910231003A CN 109972852 A CN109972852 A CN 109972852A
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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
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- 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
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- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
Building-block structure and its construction method are reinforced using vertical through holes merging prestressed anchor pressure grouting the present invention relates to a kind of, belong to existing building technical field of anti-seismic reinforcement.Including wall, prestressed anchor, basis；The wall is Concrete Hollow Block Masonry Structures, and the basis is strip footing under wall, and the prestressed anchor is vertically uniformly inserted in wall；The upper end of the prestressed anchor is anchored using strap bolt anchorage, and the anchoring lower ends of prestressed anchor are in basis；It is arranged with thin-wall steel tube or plastic tube on prestressed anchor, is perfused with mortar between thin-wall steel tube or plastic tube and the concrete hollow block of wall.The present invention can effectively improve wall cracking resistance, shear behavior, inhibit wall crazing, inhibit crack progressing, improve the anti-seismic performance of masonry structure, especially can effectively improve Seismic Bearing Capacity to existing masonry building seismic hardening.
Description
Technical field
The present invention relates to it is a kind of using vertical through holes merging prestressed anchor pressure grouting reinforce building-block structure and its
Construction method belongs to existing building technical field of anti-seismic reinforcement.
Background technique
It is a kind of completely new antidetonation using the technology that vertical through holes merging prestressed anchor pressure grouting carries out seismic hardening
Reinforce thinking.It is traditional carried out outside wall using prestressing technique Shockproof reinforcing method to the appearance of original structure, structure and
It can all be produced bigger effect in construction technology.The technology is by being placed in prestressing force in small hollow concrete block masonry wall
Anchor pole simultaneously carries out pressure grouting, then tension reinforcing steel bar is anchored, and forms prestressing force grouting rock bolt to small hollow concrete block
Masonry structure carries out seismic hardening, and the method to carry out seismic hardening to masonry structure creates wide application conditions, and opens up
The prospect of practical application is showed.
Summary of the invention
The present invention is in view of the above-mentioned problems, propose a kind of empty using vertical through holes merging prestressed anchor pressure grouting reinforcing
Heart block structure and its construction method, i.e., using vertical through holes merging prestressed anchor pressure grouting to the small-sized block of concrete hollow
The method that block masonry structure carries out seismic hardening, mainly by being placed in prestressed anchor in concrete hollow block wall
Bar, and pressure grouting is carried out, then tension reinforcing steel bar is anchored, prestressing force grouting rock bolt is formed to concrete hollow block knot
Structure carries out seismic hardening, and wherein prestressed anchor utilizes small hollow concrete block using the form being vertically evenly arranged
Vertical through holes arrangement prestress anchor pole, can be convenient construction, eliminates bore operation.
To achieve the goals above, this invention takes following technical solutions:
It is a kind of that building-block structure and its construction method, packet are reinforced using vertical through holes merging prestressed anchor pressure grouting
Include wall, prestressed anchor, basis；The wall is Concrete Hollow Block Masonry Structures, and the basis is bar shaped base under wall
Plinth, the prestressed anchor are vertically uniformly inserted in wall；The upper end of the prestressed anchor is anchored using strap bolt anchorage,
The anchoring lower ends of prestressed anchor are in basis；Thin-wall steel tube or plastic tube, thin-wall steel tube or modeling are arranged on prestressed anchor
Mortar is perfused between expects pipe and the concrete hollow block of wall.
Further, horizontal reinforcement mesh sheet is set every 5~6 building blocks in the wall.
Further, the horizontal reinforcement mesh sheet is formed using 8 reinforcement welding of φ.
Further, the prestressed anchor uses 18~φ of φ, 20 prestressed anchor.
Further, the spacing that is vertically arranged of the prestressed anchor is 400mm~600mm.
Further, bright ditch is excavated on the outside of basis under wall, " L " type hole is opened under the vertical projection direction of hole, it is described
" L " type hole cross section be rectangle, sectional dimension be 600mm × 400mm.
Above-mentioned is a kind of using vertical through holes merging prestressed anchor pressure grouting reinforcing building-block structure and its construction
Method, using following steps:
Step 1: to the wall progress unwrapping wire that grouting rock bolt need to be used to reinforce and vertical along vertical wall direction according to design drawing
It is evenly arranged hole；
Step 2: excavating bright ditch under wall on the outside of basis, " L " type hole is opened under the vertical projection direction of hole；
Step 3: it by thin-wall steel tube or plastic tube in prestressed anchor oiling rear enclosure, is inserted into above-mentioned hole, will answer in advance
Power anchor pole is arranged in wall；
Step 4: adjustment prestressed anchor pole length makes its lower end go deep into above-mentioned " L " type hole, anchorage length is not less than
700mm, and tamped above-mentioned hole with C35 concrete, make lower end and the foundation anchor of prestressed anchor；
Step 5: slip casting machine is promoted to carry out slip casing by pressure using pneumatic, by concrete hollow block and thin-wall steel tube or modeling
Gap between expects pipe fills real with mortar；
Step 6: after mortar strength reaches design strength, with torque wrench tighten the bolt of prestressed anchor upper end come
Apply prestressed stretch-draw, and is anchored using strap bolt anchorage.
The utility model has the advantages that
The present invention can effectively improve wall cracking resistance, shear behavior, inhibit wall crazing, inhibit crack progressing, improve and build
The anti-seismic performance of body structure especially can effectively improve Seismic Bearing Capacity to existing masonry building seismic hardening.
Detailed description of the invention
Fig. 1 is that vertical through holes are placed in prestressed anchor pressure grouting reinforcing building-block structural plan layout drawing；
Fig. 2 is the A-A sectional view of Fig. 1.
In figure, 1 wall；2 prestressed anchors；3 bases；4 thin-wall steel tubes or plastic tube；5 horizontal reinforcement mesh sheet；6 anchorages.
Specific embodiment
It is a kind of that building-block structure and its construction method are reinforced using vertical through holes merging prestressed anchor pressure grouting, such as
Shown in Fig. 1~2, including wall 1, prestressed anchor 2, basis 3；The wall 1 is Concrete Hollow Block Masonry Structures, described
Basis 3 is strip footing under wall；The prestressed anchor 2 is vertically uniformly inserted in wall 1；The prestressed anchor 2 it is upper
End is anchored using strap bolt anchorage 6, and the anchoring lower ends of prestressed anchor 2 are in basis 1；Thin-walled is arranged on prestressed anchor 2
Steel pipe or plastic tube 4, are perfused with mortar between thin-wall steel tube or plastic tube 4 and the concrete hollow block of wall 1.
Further, horizontal reinforcement mesh sheet 5 is set every 5~6 building blocks in the wall 1.
Further, the horizontal reinforcement mesh sheet 5 is formed using 8 reinforcement welding of φ.
Further, the anchor pole uses 18~φ of φ, 20 prestressed anchor 2.
Further, the spacing that is vertically arranged of the prestressed anchor 2 is 400mm~600mm.
Further, bright ditch is excavated in 3 outside of basis under wall, and " L " type hole is opened under the vertical projection direction of hole, described
" L " type hole cross section be rectangle, sectional dimension be 600mm × 400mm.
Above-mentioned is a kind of using vertical through holes merging prestressed anchor pressure grouting reinforcing building-block structure and its construction
Method, using following steps:
Step 1: unwrapping wire is carried out to the wall 1 that grouting rock bolt need to be used to reinforce according to design drawing and is erected along vertical wall direction
To being evenly arranged hole；
Step 2: bright ditch is excavated in 3 outside of basis under wall, and " L " type hole is opened under the vertical projection direction of hole；
Step 3: thin-wall steel tube or plastic tube 4 in 2 oiling rear enclosure of prestressed anchor are inserted into above-mentioned hole, will be pre-
Stress anchor pole 2 is arranged in wall 1；
Step 4: adjustment 2 length of prestressed anchor makes its lower end go deep into above-mentioned " L " type hole, anchorage length is not less than
700mm, and tamped above-mentioned hole with C35 concrete, anchor the lower end of prestressed anchor 2 and basis 3；
Step 5: slip casting machine is promoted to carry out slip casing by pressure using pneumatic, by concrete hollow block and thin-wall steel tube or modeling
Gap between expects pipe 4 fills real with mortar；
Step 6: after mortar strength reaches design strength, with torque wrench tighten the bolt of 2 upper end of prestressed anchor come
Apply prestressed stretch-draw, and is anchored using strap bolt anchorage 6.
It is an exemplary embodiments of the invention above, implementation of the invention is without being limited thereto.
Claims (6)
1. a kind of reinforce building-block structure and its construction method using vertical through holes merging prestressed anchor pressure grouting, including
Wall 1, prestressed anchor (2), basic (3)；It is characterized by: the wall (1) is Concrete Hollow Block Masonry Structures, institute
Stating basic (3) is strip footing under wall；The prestressed anchor (2) is vertically uniformly inserted in wall (1)；The prestressed anchor
The upper end of bar (2) is anchored using strap bolt anchorage (6), and the anchoring lower ends of prestressed anchor (2) are in basic (1)；Prestressed anchor
Thin-wall steel tube or plastic tube (4), the concrete hollow block of thin-wall steel tube or plastic tube (4) and wall (1) are arranged on bar (2)
Between be perfused with mortar.
2. according to claim 1 a kind of using vertical through holes merging prestressed anchor pressure grouting reinforcing hollow building agllutination
Structure and its construction method, it is characterised in that: horizontal reinforcement mesh sheet (5) are set every 5~6 building blocks in the wall (1).
3. horizontal reinforcement mesh sheet (5) according to claim 2, it is characterised in that: the horizontal reinforcement mesh sheet (5) uses
8 reinforcement welding of φ forms.
4. according to claim 1 a kind of using vertical through holes merging prestressed anchor pressure grouting reinforcing hollow building agllutination
Structure and its construction method, it is characterised in that: the anchor pole uses 18~φ of φ, 20 prestressed anchor (2), the prestressing force
The spacing that is vertically arranged of anchor pole (2) is 400mm~600mm.
5. according to claim 1 a kind of using vertical through holes merging prestressed anchor pressure grouting reinforcing hollow building agllutination
Structure and its construction method, it is characterised in that: excavate bright ditch on the outside of basis under wall, open " L " under the vertical projection direction of hole
Type hole, the cross section at " L " the type hole are rectangle, and sectional dimension is 600mm × 400mm.
6. a kind of described in -5 according to claim 1 reinforce building-block using vertical through holes merging prestressed anchor pressure grouting
Structure and its construction method, it is characterised in that: comprise the following specific steps that:
Step 1: to wall (1) the progress unwrapping wire that grouting rock bolt need to be used to reinforce and vertical along vertical wall direction according to design drawing
It is evenly arranged hole；
Step 2: bright ditch is excavated on the outside of basic (3) under wall, " L " type hole is opened under the vertical projection direction of hole；
Step 3: thin-wall steel tube or plastic tube (4) in prestressed anchor (2) oiling rear enclosure are inserted into above-mentioned hole, will be pre-
Stress anchor pole (2) is arranged in wall (1)；
Step 4: adjustment prestressed anchor (2) length makes its lower end go deep into above-mentioned " L " type hole, anchorage length is not less than
700mm, and tamped above-mentioned hole with C35 concrete, anchor the lower end of prestressed anchor (2) and basic (3)；
Step 5: slip casting machine is promoted to carry out slip casing by pressure using pneumatic, by concrete hollow block and thin-wall steel tube or plastic tube
(4) gap between fills real with mortar；
Step 6: after mortar strength reaches design strength, the bolt of prestressed anchor (2) upper end is tightened with torque wrench to apply
Prestressing tensioning, and anchored using strap bolt anchorage (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910231003.9A CN109972852A (en) | 2019-03-25 | 2019-03-25 | It is a kind of that building-block structure and its construction method are reinforced using vertical through holes merging prestressed anchor pressure grouting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910231003.9A CN109972852A (en) | 2019-03-25 | 2019-03-25 | It is a kind of that building-block structure and its construction method are reinforced using vertical through holes merging prestressed anchor pressure grouting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109972852A true CN109972852A (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910231003.9A Withdrawn CN109972852A (en) | 2019-03-25 | 2019-03-25 | It is a kind of that building-block structure and its construction method are reinforced using vertical through holes merging prestressed anchor pressure grouting |
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| CN (1) | CN109972852A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900910A (en) * | 2021-01-21 | 2021-06-04 | 东南大学 | Three-dimensional frame reinforcing structure in large-volume brick-stone masonry column body and construction method |
| CN113863539A (en) * | 2021-08-25 | 2021-12-31 | 东南大学 | Low-intervention brick masonry wall anti-seismic reinforcing device and construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001132240A (en) * | 1999-11-10 | 2001-05-15 | Nippon Fuasutemu Kk | Press-in structure for grout in mortar filling type aseismatic reinforcing construction method |
| US20020157344A1 (en) * | 1999-09-16 | 2002-10-31 | Christopher J. Dean | Method for reinforcing hollow concrete block walls |
| CN103352582A (en) * | 2013-07-09 | 2013-10-16 | 北京筑福国际工程技术有限责任公司 | Method for reinforcing concrete hollow block masonry structure through interior prestressed reinforcement anchor rods |
| CN203394092U (en) * | 2013-07-09 | 2014-01-15 | 北京筑福国际工程技术有限责任公司 | Concrete hollow block masonry structure reinforced by adopting internal prestressing force |
-
2019
- 2019-03-25 CN CN201910231003.9A patent/CN109972852A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020157344A1 (en) * | 1999-09-16 | 2002-10-31 | Christopher J. Dean | Method for reinforcing hollow concrete block walls |
| JP2001132240A (en) * | 1999-11-10 | 2001-05-15 | Nippon Fuasutemu Kk | Press-in structure for grout in mortar filling type aseismatic reinforcing construction method |
| CN103352582A (en) * | 2013-07-09 | 2013-10-16 | 北京筑福国际工程技术有限责任公司 | Method for reinforcing concrete hollow block masonry structure through interior prestressed reinforcement anchor rods |
| CN203394092U (en) * | 2013-07-09 | 2014-01-15 | 北京筑福国际工程技术有限责任公司 | Concrete hollow block masonry structure reinforced by adopting internal prestressing force |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900910A (en) * | 2021-01-21 | 2021-06-04 | 东南大学 | Three-dimensional frame reinforcing structure in large-volume brick-stone masonry column body and construction method |
| CN112900910B (en) * | 2021-01-21 | 2022-04-12 | 东南大学 | Three-dimensional frame reinforcing structure in large-volume brick-stone masonry column body and construction method |
| CN113863539A (en) * | 2021-08-25 | 2021-12-31 | 东南大学 | Low-intervention brick masonry wall anti-seismic reinforcing device and construction method |
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| PB01 | Publication | ||
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Application publication date: 20190705 |