CN113279599B - Damaged wood column flat-head pier connection reinforcing method based on FRP (fiber reinforced Plastic) ribs - Google Patents
Damaged wood column flat-head pier connection reinforcing method based on FRP (fiber reinforced Plastic) ribs Download PDFInfo
- Publication number
- CN113279599B CN113279599B CN202110566867.3A CN202110566867A CN113279599B CN 113279599 B CN113279599 B CN 113279599B CN 202110566867 A CN202110566867 A CN 202110566867A CN 113279599 B CN113279599 B CN 113279599B
- Authority
- CN
- China
- Prior art keywords
- wood column
- column
- damaged
- self
- sensing
- 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
- 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
- E04G23/0225—Increasing or restoring the load-bearing capacity of building construction elements of circular building elements, e.g. by circular bracing
-
- 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
- E04G2023/0248—Increasing or restoring the load-bearing capacity of building construction elements of elements made of wood
-
- 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
- E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention relates to a damaged wood column flat-head pier connection reinforcing method based on FRP ribs, which comprises the following steps: preparing a new wood column with the same diameter as the damaged wood column; processing the mutually connected end parts of the new wood column and the damaged wood column into planes, and then, performing pier connection on the new wood column and the damaged wood column through flat heads to form a column body; an even number of axially arranged open grooves are uniformly distributed on the circumference of the pier joint of the outer surface of the column body, one half of the open grooves are arranged on the new wood column, and the other half of the open grooves are arranged on the damaged wood column; arranging a self-sensing FRP rib in each slot, and filling an adhesive between the self-sensing FRP rib and the slot; installing old battens at the outer ends of the slots to seal the slots; bind the soft steel band at the mound end of new post and damaged post, soft steel band is located fluting tip inboard, and this reinforced structure construction convenience when original post historical information is kept down to the at utmost, can also realize the reinforcement to the post, even from monitoring.
Description
Technical Field
The invention relates to a method for flat-headed pier connection and reinforcement of damaged wood columns based on FRP ribs.
Background
Along with the proposal of a series of policy measures such as beautiful country construction, country memory engineering, country happy strategy and the like under the novel urbanization background; the protection of buildings mainly made of wood structures, such as ancient buildings and ancient residences, is more and more emphasized. Common damage types of wooden structures include node damage, column foot decay, excessive deformation of bent members and the like, wherein the most common types of wooden structures are the wooden column foot decay caused by dry-wet circulation, worm decay and the like, and the repair difficulty is often larger. In many cases, the columns are often directly replaced, which is very unfavorable for the repair and protection of the traditional buildings, does not meet the repair and reinforcement principle of the traditional buildings, and has great influence on the appearance; in addition, the common pier connection reinforcing methods such as palm tenons and hand tenons are limited by parameters such as pier connection length, the intact part of the original wood column is reinforced only by cutting a large part, the loss of the material of the log column is large, the historical information of the log column cannot be kept to the maximum extent, the construction is complex, and the completion can be completed only by ensuring that the size of the log is matched with the size of the new wood pier connection.
Disclosure of Invention
The invention aims to overcome the defects and provides a method for reinforcing the flat-headed pier of the damaged wood column based on the FRP rib.
The invention solves the technical problem by adopting a scheme that a damaged wood column flat-headed pier connection reinforcing method based on FRP ribs comprises the following steps:
the method comprises the following steps: preparing a new wood column with the same diameter as the damaged wood column;
step two: processing the mutually connected end parts of the new wood column and the damaged wood column into planes, and then, performing pier connection on the new wood column and the damaged wood column through flat heads to form a column body;
step three: an even number of axially arranged open grooves are uniformly distributed on the circumference of the pier joint of the outer surface of the column body, one half of the open grooves are arranged on the new wood column, and the other half of the open grooves are arranged on the damaged wood column;
step four: arranging a self-sensing FRP rib in each slot, filling an adhesive between the self-sensing FRP rib and the slot, and forming a bonding layer between the self-sensing FRP rib and the slot so as to bond and fix the self-sensing FRP rib, the new wood column and the damaged wood column;
step five: installing old battens at the outer ends of the slots to seal the slots;
step six: and binding soft steel belts at the pier connecting ends of the new wood column and the damaged wood column, wherein the soft steel belts are positioned at the inner sides of the slotted end parts.
Furthermore, the adhesive is a modified epoxy resin structural adhesive or a resorcinol resin adhesive.
Furthermore, wood chips are mixed in the bonding layer.
Furthermore, sensing optical fibers and distributed grating sensors connected with the sensing optical fibers are arranged inside the self-sensing FRP ribs, and optical fiber connecting wires connected with the sensing optical fibers are arranged at the end parts of the self-sensing FRP ribs.
Furthermore, the surface of the self-sensing FRP rib is provided with a rib, and the end part of the rib is provided with a reinforcing sheath.
Furthermore, the reinforced sheath comprises a steel hoop connected with the end part of the self-sensing FRP rib and a rubber sleeve sleeved outside the steel hoop, and a notch for the optical fiber connecting line to pass through is formed in the reinforced sheath.
Further, the length of the groove is 1.5-2.0 times of the diameter of the damaged wood column.
Furthermore, a buckle is installed at one end of the soft steel strip, and a plurality of clamping grooves matched with the buckle are formed in the other end of the soft steel strip at intervals.
Compared with the prior art, the invention has the following beneficial effects: simple structure, reasonable in design, construction convenience when original post historical information under the at utmost remains, can also realize the reinforcement to the post, even from the monitoring.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic view of the present reinforcing structure.
Fig. 2 is a disassembled schematic view of the present reinforcing structure.
Fig. 3 is a schematic view of the structure of the soft steel strip.
FIG. 4 is a schematic diagram of a self-sensing FRP rib.
Fig. 5 is a schematic view of the structure of the reinforcement sheath.
Fig. 6 is a schematic view of a structure when reinforcement is not performed using a soft steel belt.
Fig. 7 is a schematic view of a reinforcing structure of a wooden pillar without monitoring.
In the figure: 1-new wood columns; 2-damaged wood columns; 3-slotting; 4-self-sensing FRP ribs; 401-optical fiber connection line; 5-an adhesive; 6-reinforcing the sheath; 601-a steel hoop; 602-a rubber sleeve; 7-old wood strips; 8-a soft steel belt; 801-buckling; 802-card slot; 9-FRP cloth.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1-5, a damaged wood column flat-head pier connection reinforcing method based on FRP ribs includes the following steps:
the method comprises the following steps: preparing a new wood column 1 with the same diameter as the damaged wood column 2;
step two: processing the mutually connected end parts of the new wood column and the damaged wood column into planes, and then, performing pier connection on the new wood column and the damaged wood column through flat heads to form a column body;
step three: an even number of axially arranged open grooves 3 are uniformly distributed on the circumference of the pier joint of the outer surface of the column body, one half of the open grooves are arranged on the new wood column, and the other half of the open grooves are arranged on the damaged wood column;
step four: arranging a self-sensing FRP rib 4 in each slot, filling an adhesive 5 between the self-sensing FRP rib and the slot, and forming a bonding layer between the self-sensing FRP rib and the slot, so that the self-sensing FRP rib, the new wood column and the damaged wood column are bonded and fixed, the effective transmission of force is ensured, and the new wood column and the damaged wood column mainly transmit force through the self-sensing FRP rib;
step five: installing an old batten 7 at the outer end of the slot to plug the slot so as to maintain the original shape to the maximum extent, wherein the size of the old batten is ensured to be approximately consistent with that of the slot, and a gap is required to be reserved between the self-sensing FRP rib and the old batten so as to ensure that an optical fiber connecting wire connected with an optical fiber has a storage space;
step six: and binding a soft steel belt 8 at the pier connecting end of the new wood column and the damaged wood column, wherein the soft steel belt is positioned at the inner side of the end part of the open groove.
In this embodiment, old stuff can be directly fixed by inlaying, also can be fixed through the mild steel band of adjustable elasticity.
In this embodiment, as shown in fig. 6, for the pier-connected wooden column that does not need to be monitored, the wooden bar is directly adhered to the pier-connected wooden column by using epoxy resin without using a soft steel strip for fixing. As shown in fig. 7, for the wood column which can be used as a paint surface and does not need to be monitored, a layer of FRP cloth 9 can be sequentially pasted and fixed along the longitudinal direction and the transverse direction, and even the bearing capacity of the wood column is strengthened to a certain extent.
In the embodiment, the slots are symmetrically arranged and are preferably uniformly distributed, 4 slots are arranged for the traditional residential wooden column (the diameter is about 180-380 mm), and the spacing angle is 90 degrees; for the column with larger column diameter, 6 columns can be arranged, and the interval angle is 60 degrees.
In this embodiment, the adhesive is a modified epoxy resin structural adhesive or a resorcinol resin adhesive.
In this embodiment, wood chips are mixed in the adhesive layer.
In this embodiment, the sensing optical fiber and the distributed grating sensor connected to the sensing optical fiber are disposed inside the self-sensing FRP rib, and the optical fiber connection line 401 connected to the sensing optical fiber is disposed at the end of the self-sensing FRP rib.
In this embodiment, the surface of the self-sensing FRP rib is ribbed, and the end of the rib is provided with a reinforcing sheath 6, so as to ensure that the stress concentration phenomenon of the part contacting with the FRP rib is relieved when the rib is pressed and the fiber of the FRP rib at the end is not loosened.
In this embodiment, the reinforced sheath includes a steel hoop 601 connected to the end of the self-sensing FRP rib and a rubber sleeve 602 sleeved outside the steel hoop, the steel hoop is bonded to the rubber sleeve, and the reinforced sheath is provided with a notch for the optical fiber connection line to pass through.
In this embodiment, the length of the groove is 1.5-2.0 times the diameter, width and depth of the damaged wood column, which depends on the size of the log column, and the wood column is not weakened excessively.
In this embodiment, a buckle 801 is installed at one end of the soft steel strip, and a plurality of slots 802 matched with the buckle are formed at the other end of the soft steel strip at intervals.
This reinforced structure is little to original structure disturbance, under the condition of not changing the post and not too much weakening the cross-section, can play the effect that improves bearing capacity, rigidity, not only is applicable to eaves post, gold post, also can be applicable to the post in the wall body, and it is more direct to pass power, has more and consolidates the advantage, jointly uses with self-sensing FRP muscle, can also play and consolidate monitoring effect, masters the state of consolidating the back post in real time, makes and consolidates the effect and also has ensured.
If this patent discloses or refers to parts or structures that are fixedly connected to each other, the fixedly connected may be understood as: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In the description of this patent, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
The above-mentioned preferred embodiments, object, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned preferred embodiments are only illustrative of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A damaged wood column flat-head pier connection reinforcing method based on FRP ribs is characterized by comprising the following steps:
the method comprises the following steps: preparing a new wood column with the same diameter as the damaged wood column;
step two: processing the mutually connected end parts of the new wood column and the damaged wood column into planes, and then, performing pier connection on the new wood column and the damaged wood column through flat heads to form a column body;
step three: an even number of axially arranged open grooves are uniformly distributed on the circumference of the pier joint of the outer surface of the column body, one half of the open grooves are arranged on the new wood column, and the other half of the open grooves are arranged on the damaged wood column;
step four: arranging a self-sensing FRP rib in each slot, filling an adhesive between the self-sensing FRP rib and the slot, and forming a bonding layer between the self-sensing FRP rib and the slot so as to bond and fix the self-sensing FRP rib, the new wood column and the damaged wood column;
step five: installing old battens at the outer ends of the slots to seal the slots;
step six: binding soft steel belts at the pier connection ends of the new wood column and the damaged wood column, wherein the soft steel belts are positioned at the inner sides of the slotted end parts;
wood dust is mixed in the bonding layer;
the surface of the self-sensing FRP rib is provided with a rib, and the end part of the self-sensing FRP rib is provided with a reinforcing sheath;
the length of the slot is 1.5-2.0 times of the diameter of the damaged wood column;
the reinforced sheath comprises a steel hoop connected with the end part of the self-sensing FRP rib and a rubber sleeve sleeved outside the steel hoop, and a notch for the optical fiber connecting wire to pass through is formed in the reinforced sheath;
the buckle is installed to mild steel strip one end, and a plurality of draw-in grooves with buckle matched with are seted up at the other end interval.
2. The FRP rib-based damaged wood column flat-head pier connection and reinforcement method as claimed in claim 1, wherein: the adhesive is a modified epoxy resin structural adhesive or a resorcinol resin adhesive.
3. The FRP rib-based damaged wood column flat-head pier connection and reinforcement method as claimed in claim 1, wherein the method comprises the following steps: the self-sensing FRP rib is internally provided with sensing optical fibers and distributed grating sensors connected with the sensing optical fibers, and the end part of the self-sensing FRP rib is provided with an optical fiber connecting wire connected with the sensing optical fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110566867.3A CN113279599B (en) | 2021-05-24 | 2021-05-24 | Damaged wood column flat-head pier connection reinforcing method based on FRP (fiber reinforced Plastic) ribs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110566867.3A CN113279599B (en) | 2021-05-24 | 2021-05-24 | Damaged wood column flat-head pier connection reinforcing method based on FRP (fiber reinforced Plastic) ribs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113279599A CN113279599A (en) | 2021-08-20 |
| CN113279599B true CN113279599B (en) | 2022-05-03 |
Family
ID=77281098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110566867.3A Active CN113279599B (en) | 2021-05-24 | 2021-05-24 | Damaged wood column flat-head pier connection reinforcing method based on FRP (fiber reinforced Plastic) ribs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113279599B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392288B (en) * | 2020-12-07 | 2024-06-04 | 福州大学 | Device and method for reinforcing wood beam by combining prestress FRP (fiber reinforced Plastic) and high-strength steel wire rope |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469139A (en) * | 2019-08-09 | 2019-11-19 | 上海市园林工程有限公司 | A kind of construction method that ancient architecture pin pier connects |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5553438A (en) * | 1994-07-18 | 1996-09-10 | Forintek Canada Corp. | Methods of extending wood pole service life |
| WO2010130009A1 (en) * | 2009-05-15 | 2010-11-18 | Norman Ross Watt | Pile assembly and method of forming same |
| CN102900200B (en) * | 2012-10-09 | 2015-02-04 | 东南大学 | Intelligent FRP (Fiber Reinforce Plastic)-concrete composite structure and manufacturing method thereof |
| US20150059926A1 (en) * | 2013-09-04 | 2015-03-05 | Mohammad R. Ehsani | Wood column repair, reinforcement, and extension |
| CN105332338B (en) * | 2015-11-25 | 2016-09-14 | 苏州大学 | Utilize reinforced (rfd) concrete column of self-sensing FRP muscle |
-
2021
- 2021-05-24 CN CN202110566867.3A patent/CN113279599B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469139A (en) * | 2019-08-09 | 2019-11-19 | 上海市园林工程有限公司 | A kind of construction method that ancient architecture pin pier connects |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113279599A (en) | 2021-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106593002B (en) | A kind of historic building structure post and lintel system house composite reinforcing method | |
| CN101560816B (en) | FRP rib fibre cloth winding coaxial connection method | |
| CN101672110B (en) | Method and structure for enhancing brickwork structure and improving earthquake resistant performance of structure by using carbon fiber | |
| CN113279599B (en) | Damaged wood column flat-head pier connection reinforcing method based on FRP (fiber reinforced Plastic) ribs | |
| CN107386445B (en) | A kind of enhanced timber structure Tenon node of tenon shallow-layer bar planting | |
| US4084818A (en) | Hockey stick with reinforcement filament winding | |
| CN214942720U (en) | Damaged wooden column flat-head pier connection reinforcing structure based on FRP intelligent sensing | |
| CN206418790U (en) | A kind of fiber cloth reinforced reinforced beam structural member | |
| CN106400956B (en) | A kind of beam-column joint of reinforced concrete frame ruggedized construction and its construction method | |
| CN105735666B (en) | A kind of method of rapid reinforcement concrete column | |
| CN107024305A (en) | The method of bridge structure intelligence reinforcement assembly and fiber-optic grating sensor compoiste adhering | |
| CN109162479B (en) | Method for reinforcing and repairing ancient building oblique-lap-type rafter and purlin joint | |
| CN216422888U (en) | Regenerated composite batten | |
| CN204001810U (en) | A kind of Covered with Angles encloses cover and reinforces section steel concrete column-steel girder node device after fire | |
| CN206128679U (en) | Reinforcing structure for frame columns at deformation joint | |
| JP3626747B2 (en) | Joining structure for building components and method for joining building components | |
| CN206844647U (en) | Flexible system of consolidating of frame post template | |
| CN213063039U (en) | Ancient building timber pillar palm tenon mound connects reinforced structure | |
| CN208534089U (en) | A kind of ancient building pin pier connects reinforcing and repairs structure | |
| CN214302985U (en) | Energy consumption plate device for reinforcing wood structure node | |
| CN215253995U (en) | Reinforcing bar protective layer thickness control cushion | |
| CN212271676U (en) | Reinforcing material capable of reinforcing structural member bidirectionally | |
| CN203305581U (en) | Pultruded wood core composite sandwich plate | |
| CN110469022A (en) | The production method of wooden peg welding laminated timber floor assembly | |
| CN205531428U (en) | Big gallows timber tenon fourth of twelve earthly branches node of reinforced (rfd) ancient building of low yield point trompil steel band |
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 |