CN206337511U - A kind of concrete pier based on aluminium alloy/post bracing means - Google Patents
A kind of concrete pier based on aluminium alloy/post bracing means Download PDFInfo
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- CN206337511U CN206337511U CN201621118021.4U CN201621118021U CN206337511U CN 206337511 U CN206337511 U CN 206337511U CN 201621118021 U CN201621118021 U CN 201621118021U CN 206337511 U CN206337511 U CN 206337511U
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- aluminium alloy
- bracing means
- concrete
- concrete pier
- post
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Abstract
The utility model discloses a kind of concrete pier based on aluminium alloy/post bracing means, the bracing means surrounds a rectangular configuration for four pieces of hollow aluminium alloy plates of abnormity, it is enclosed within outside the concrete pier/post, welding or bolt connection between the hollow aluminium alloy plate of adjacent two pieces of abnormity；Reperfusion structure glue between rectangular configuration inwall and the concrete pier/column outer wall, rectangular configuration is fastened by bolts with the concrete pier/post.Bracing means structure type variation of the present utility model, with good corrosion resistance and durability, high-strength light is lightweight, is easy to make, process, transport and install, and construction is simple, low cost.
Description
Technical field
The utility model belongs to bridge structure technical field, and more particularly to a kind of concrete pier/post based on aluminium alloy adds
It is fixedly mounted with and puts.
Background technology
The advantages of concrete is with its superior pressure-bearing, fire prevention, abundant material source and economic cost performance, which turns into, to be worked as
Modern most widely used construction material, but in Practical Project, usually because designing, inconsiderate, construction quality is poor, job site pipe
Reason such as is not good at the reason, and causing reinforcing bar mix, knoll/columns bearing capacity is not enough, and the reason for causing Lack of support also has fire to make reinforcing bar mixed
Concrete and the reinforced steel bar strength reduction of solidifying earth pillar, or make load increase that post bears etc. due to changing the use function of structure
Deng.When this occurs, reinforced column need to be reinforced.The reinforcing mode of reinforced concrete knoll/post has a lot,
And conventional traditional reinforcing mode has external wrapping concrete method for strengthening and outside steel pipe method for strengthening.
External wrapping concrete method for strengthening, pours certain thickness concrete around pier, post, and pier, post are wrapped up, and is formed
Overall stress, there are problems that shortcoming or：Bearing capacity to pier, post improves limited；The resistance to compression that concrete can not be given full play to is excellent
Gesture；There are endurance issues, especially coastal area in external wrapping concrete；The connection of new-old concrete is difficult to ensure that；After reinforcing, no
Facilitate pier, the secondary maintenance in the post service life cycle.
Outside steel pipe method for strengthening, pours certain thickness concrete, and the Covered with Angles outside concrete around pier, post
Pipe, formed it is overall carry out stress, there are problems that shortcoming or：There are endurance issues in outside steel pipe, the later stage needs more expense
Carry out Corrosion Maintenance, especially coastal area；After reinforcing, it has not been convenient to pier, the secondary maintenance in the post service life cycle；Structure shape
Formula is single, and bearing power increase is limited.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of structure type variation, with good corrosion resistance
And durability, high-strength light is lightweight, is easy to make, process, transport and install, and construction is simple, low cost based on aluminium alloy
Concrete pier/post bracing means.
The utility model solves above-mentioned technical problem using following technical scheme：
A kind of concrete pier based on aluminium alloy/post bracing means, the bracing means is four blocks of hollow aluminium alloys of abnormity
Plate surrounds a rectangular configuration, is enclosed within outside the concrete pier/post, welding or spiral shell between the hollow aluminium alloy plate of adjacent two pieces of abnormity
Tether and connect；Reperfusion structure glue between rectangular configuration inwall and the concrete pier/column outer wall, rectangular configuration and the concrete
Pier/post is fastened by bolts.
The special-shaped hollow aluminium alloy plate, its cross sectional shape is special-shaped, and concrete is filled in special-shaped hollow aluminium alloy plate.
The beneficial effects of the utility model are：
(1) the utility model constitutes the bracing means of concrete pier/post using special-shaped hollow aluminium alloy plate, makes concrete
Pier/column section various shapes, can realize different consolidation effects；
(2) the utility model bracing means uses aluminium alloy plate, with good corrosion resistance and durability, is especially suitable for
Concrete pier, post of coastal area etc., can save substantial amounts of later stage Corrosion Maintenance expense；
(3) the utility model is constituted using special-shaped hollow aluminium alloy plate fills in the bracing means of concrete pier/post, aluminium alloy
Concrete is filled out, the two be combined with each other, can each play the advantage of oneself, realized and have complementary advantages；
(4) the utility model bracing means uses aluminium alloy plate, and density is the 1/3 of steel density, high-strength light, weight
Gently, it is easy to make, process, transport and install.
Brief description of the drawings
Fig. 1 to Fig. 5 is that the section that is installed on concrete pier of bracing means of the utility model different cross section shape shows
It is intended to,
In figure, 1：Bracing means；2nd, bolt；3：Concrete pier；4：Concrete.
Embodiment
Embodiment of the present utility model is elaborated below in conjunction with the drawings and specific embodiments, but not constituted
To this reality
With the limitation of new claims.
Embodiment 1：
As shown in figure 1, a kind of concrete pier bracing means based on aluminium alloy, is that four pieces of hollow aluminium alloy plates of abnormity enclose
Into a rectangular configuration, it is enclosed within outside the concrete pier 3, welding or bolt connect between the hollow aluminium alloy plate of adjacent two pieces of abnormity
Connect；Reperfusion structure glue between rectangular configuration inwall and the outer wall of the concrete pier 3, rectangular configuration passes through with the concrete pier 3
Bolt 2 is fastened.
As shown in Figures 1 to 5, the cross sectional shape of special-shaped hollow aluminium alloy plate is different abnormity, to realize different add
Gu the structure type of concrete pier, obtains different consolidation effects.
Construction method is as follows：
1. concrete surface is handled
Position full-page proof is reinforced needing the surface of reinforced concrete bridge pier to release, stabilization zone 2~5mm of concrete surface is cut thick
Top layer mortar, make exposed concrete, and formed at smooth mat surface, uneven surface and flattened using diamond bit soft peening.Steel is used again
Silk wheel removes surface laitance, rejects top layer loose matter, finally blows off surface dust with compressed air, and with toluene or industrial acetone
Wipe stabilization zone surface.To the layer inferior of larger area, repair smooth with polymer cement mortar after rejecting, acetone is used before reinforcing
Scrub.
2. drill
Prepare：Check whether concrete pier surface is intact, visit instrument detection with reinforcing bar and find out that reinforcing bar is distributed, verification mark anchor
Spigot position；
Drilling：The data requirement according to the diameter of bolt according to technical parameter table, according to diameter correspondence depth in concrete
Punched on bridge pier, check that aperture and hole depth meet design requirement；
Borehole cleaning：Using compressed air borehole cleaning, with hairbrush brush three times, blow three times, it is ensured that hole wall is dustless.It can use if necessary clean
Cotton is stained with a small amount of acetone or wipes of alcohol clear opening wall.
Confirm that anchoring bag, without anomalies such as damaged, the medicament solidifications of outward appearance, puts it into hole and is pushed into bottom hole.
Using electric hammer or electric drill and special installs fixture, bolt strength is rotatably inserted into until bottom hole, glass is smashed to reach
The purpose of glass pipe and strength mixing anchoring medicament.The rotating speed of electric hammer or electric drill should be adjusted to shelves at a slow speed, and should not use impact mode.
When being threaded to mark position on bottom hole or bolt, stop the rotation, removed after installs fixture, gel to completely solid at once
Disturbance is avoided before change.Time-out rotation will cause glue to be lost in, and influence anchor force.
Whether visual examination solidification is normal.The bolt of significant points need to carry out live pullout tests, examine its anchor force to be
It is no to meet design requirement, it is qualified after can carry out the construction of next process.
3. bracing means is installed
Actual setting-out according to on-site concrete bridge pier carry out the bracing means special-shaped hollow aluminium alloy plate blanking and
Processing, and the bolt buried according to scene plant, supporting punching is carried out to the special-shaped hollow aluminium alloy plate, then by the abnormity
The sticking veneer of empty aluminium alloy plate with polishing abrasive machine or steel wire brush grinding machine carries out rust cleaning and coarse processing, polish roughness it is more big more
Good, polishing lines should be vertical with bracing means Impact direction.Acetone is stained with absorbent cotton bracing means surface wipes are clean.By four
The hollow aluminium alloy plate of block abnormity, which is respectively fixed to step and 2. planted, wrap concrete pier on the bolt buried, and four pieces of abnormity are hollow
To be welded between aluminium alloy plate, it is ensured that the sticking veneer of special-shaped hollow aluminium alloy plate and the gap of concrete pier outer surface be 1~
3mm, to ensure the thickness for irrigating glue-line.
4. edge sealing
Hole for injecting glue is bored on bracing means；Injecting socket is bonded on the hole for injecting glue hole of bracing means, in bracing means
Aluminium alloy plate apical margin inserts blast pipe, and exhaust outlet should be higher than that the bracing means position of perfusion section；Smeared on bolt head
Close glue and cover upper teabowl with a cover, then with the aluminium alloy plate edge of edge sealing adhesive closed reinforcement device, complete edge sealing.
5. structure glue is prepared
Structure glue is prepared on request, and structure glue low-speed agitator stirs, is finished within working life.Structure glue
It should be completed in edge sealing, and bracing means edge sealing adhesive reaches to be fully cured after enough intensity and is prepared and used again.
6. irrigate
Hole for injecting glue of the structure glue for 5. being prepared step with pump from step 4. is filled into the viscous of special-shaped hollow aluminium alloy plate
In the gap of veneer and concrete pier outer surface, until all blast pipes have glue outflow.In filling process, rubber is used
It is closely knit to be confirmed whether perfusion that hammer beats special-shaped hollow aluminium alloy plate.It is required that pressure testing of first being ventilated before grouting, with 0.2~0.4MPa
Pressure by structure glue from injecting socket be pressed into, after there are slurries in blast pipe stop pressurization, with edge sealing adhesive plug-hole, then with compared with low pressure
Power is maintained more than 10 minutes, until slurries flow out from the top hole for injecting glue or blast pipe.
7. concrete perfusion
As shown in Figures 3 to 5, to needing the bracing means concrete perfusion of concrete perfusion, the perfusion of concrete is used
Method from below to up, it is ensured that tight, no cavity.
Consolidation effect：
1st, force analysis is carried out to bracing means as shown in Figure 4, reinforced using the high small examples of diplopore Thin-Wall Piers of 10m
Recruitment evaluation, structural finite element model is set up using ANSYS finite element softwares.
(1) material property
Former bridge pier structure concrete uses C30, density 2500kg/m3, Poisson's ratio 0.3, elastic modelling quantity 30GPa；
Concrete perfusion uses C50, density 2500kg/m in aluminium alloy3, Poisson's ratio 0.3, elastic modelling quantity 34.5GPa；
Aluminium alloy is 6061-T6, and thickness is 1cm, density 2710kg/m3, Poisson's ratio 0.3, elastic modelling quantity 72GPa.
(2) the way of restraint
Row constraint is entered in bridge pier bottom in the form of fixing end.
(3) load
Dead load, acceleration of gravity 9.8m/s2；
Vertical load suffered by bridge pier is 1000KN.
(4) model cross sectional shape：As shown in Figure 4.
2 result of calculations
Self-vibration characteristic comparing result is shown in Table 2-1 before and after reinforcing, and the natural frequency of vibration of T beams is obtained after being reinforced it can be seen from table 2-1
The rigidity for having arrived different degrees of raising, i.e. pier stud is improved.
Self-vibration characteristic result of calculation is contrasted before and after table 2-1 is reinforced
Amount of deflection contrast before and after reinforcing：
Because the main function of pier stud is subject to vertical load, in gravity load and 1000KN vertical load collective effects
Under, static analysis is carried out, 2-2 is the results are shown in Table.
Amount of deflection calculates Comparative result before and after table 2-2 is reinforced
Stress contrast before and after reinforcing：
Because the main function of pier stud is subject to vertical load, in gravity load and 1000KN vertical load collective effects
Under, static analysis is carried out, 2-3 is the results are shown in Table.
Stress calculating results are contrasted before and after table 2-3 is reinforced
Claims (2)
1. a kind of concrete pier based on aluminium alloy/post bracing means, it is characterised in that：The bracing means is in four pieces of abnormity
Empty aluminium alloy plate surrounds a rectangular configuration, is enclosed within outside the concrete pier/post, between the hollow aluminium alloy plate of adjacent two pieces of abnormity
Welding or bolt connection；Reperfusion structure glue between rectangular configuration inwall and the concrete pier/column outer wall, rectangular configuration with it is described
Concrete pier/post is fastened by bolts.
2. a kind of concrete pier based on aluminium alloy/post bracing means as claimed in claim 1, it is characterised in that：It is described different
Concrete is filled in the hollow aluminium alloy plate of shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118021.4U CN206337511U (en) | 2016-10-12 | 2016-10-12 | A kind of concrete pier based on aluminium alloy/post bracing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118021.4U CN206337511U (en) | 2016-10-12 | 2016-10-12 | A kind of concrete pier based on aluminium alloy/post bracing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206337511U true CN206337511U (en) | 2017-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621118021.4U Expired - Fee Related CN206337511U (en) | 2016-10-12 | 2016-10-12 | A kind of concrete pier based on aluminium alloy/post bracing means |
Country Status (1)
| Country | Link |
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| CN (1) | CN206337511U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436588A (en) * | 2016-10-12 | 2017-02-22 | 广西大学 | Concrete pier/column reinforcing device based on aluminum alloy and construction method thereof |
| CN108824225A (en) * | 2018-08-09 | 2018-11-16 | 长安大学 | A kind of hardened system and reinforcement means of reinforced column |
-
2016
- 2016-10-12 CN CN201621118021.4U patent/CN206337511U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436588A (en) * | 2016-10-12 | 2017-02-22 | 广西大学 | Concrete pier/column reinforcing device based on aluminum alloy and construction method thereof |
| CN106436588B (en) * | 2016-10-12 | 2019-03-26 | 广西大学 | A kind of concrete pier based on aluminium alloy/column bracing means and its construction method |
| CN108824225A (en) * | 2018-08-09 | 2018-11-16 | 长安大学 | A kind of hardened system and reinforcement means of reinforced column |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170718 Termination date: 20191012 |