CN109914589A - A kind of prestressed reinforced concrete prefabricated post vertical connection structure and its construction method - Google Patents
A kind of prestressed reinforced concrete prefabricated post vertical connection structure and its construction method Download PDFInfo
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 84
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 239000004567 concrete Substances 0.000 claims abstract description 57
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 56
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000011148 porous material Substances 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 4
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 4
- 210000003205 muscle Anatomy 0.000 claims description 4
- 238000004873 anchoring Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 239000011440 grout Substances 0.000 description 5
- 239000011178 precast concrete Substances 0.000 description 4
- 230000011218 segmentation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
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Abstract
A kind of prestressed reinforced concrete prefabricated post vertical connection structure and its construction method, including top bars concrete prefabricated column, lower layer's reinforced concrete prefabricated column, reinforcing bar connector, level locator and sealing grouting material, top bars concrete prefabricated column bottom inner portion, which is provided with, anchors into space for what reinforcing bar connector accommodated, lower floor's post presstressed reinforcing steel does not contact in reinforcing bar connector with upper strata post presstressed reinforcing steel, the top end face of lower layer's reinforced concrete prefabricated column is equipped with leveling locator, the bottom face of top bars concrete prefabricated column is held out against on locator, just gap is formed between top bars concrete prefabricated column, just sealing grouting material is filled in gap.The present invention utilizes the prestressing force principle of deformed bar, cooperates naughty locator to realize that pillar is stood and positioned by the initial tensioning of deformed bar；Then being reliably connected for pillar, the lateral resistance and Self-resetting performance of structure entirety are guaranteed by complete tensioning again.
Description
Technical field
The invention belongs to the vertical connection area of prefabricated post, the connection structure of especially a kind of prestressing force prefabricated post and its apply
Work method.
Background technique
The connection type of vertical prefabricated components steel bar stress at present, it is general general using being obtained in the U.S. and Japan and other countries
All over the reinforced bar sleeve grouting interconnection technique of application.But since worker's construction technology level is irregular, grout sleeve node connects
It is unreliable to connect quality, be easy to appear at sleeve grouting grouting it is not firm, reinforcing bar in sleeve for segmentation connection, prefabricated components junction
Later period generates crack, leads to component failure once geological process occurs and is easy to disconnect at node.Grout sleeve shows simultaneously
Field is great in constructing amount, and concreting is difficult, and the duration is longer.
Summary of the invention
The object of the present invention is to provide a kind of prestressed reinforced concrete prefabricated post vertical connection structure and its construction method,
It is not firm using grout sleeve grouting to solve existing vertical prefabricated components, reinforcing bar is segmentation connection in sleeve, and prefabricated components connect
Place later period generation crack is connect, geological process is easy to disconnect the technical issues of leading to component failure at node, also to solve to fill
The site operation amount for starching sleeve is big, and concreting is difficult, duration longer technical problem.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of prestressed reinforced concrete prefabricated post vertical connection structure, including top bars concrete prefabricated column and lower layer's reinforcing bar
Under being located at the connecting node of concrete prefabricated column, lower layer's reinforced concrete prefabricated column and top bars concrete prefabricated column
The top of the connecting node of layer reinforced concrete prefabricated column and Vierendeel girder,
It is equipped with one group of elongated vertical prestressing force opening in lower layer's reinforced concrete prefabricated column, in each prestressed pore passage
It is installed with a lower floor's post presstressed reinforcing steel, the top end part of lower layer's reinforced concrete prefabricated column is embedded with prestressed anchor, the lower floor's post
Presstressed reinforcing steel stretches out the top end face of lower layer's reinforced concrete prefabricated column upwards, and prestressed anchor covers on lower floor's post presstressed reinforcing steel simultaneously
And its top side face is concordant with the top end face of lower layer reinforced concrete prefabricated column,
It is corresponding elongated with above and below lower layer's reinforced concrete prefabricated column equipped with one group in the top bars concrete prefabricated column
Vertical prestressing force opening, is installed with a upper strata post presstressed reinforcing steel in each prestressed pore passage, the upper strata post presstressed reinforcing steel to
The lower bottom face for stretching out top bars concrete prefabricated column, bottom end surrounding of the prestressed pore passage in upper strata post presstressed reinforcing steel
Widen to be formed and anchor into space for what reinforcing bar connector accommodated,
The vertical connection structure further includes reinforcing bar connector, levels locator and sealing grouting material,
The bottom face of the reinforcing bar connector withstands on the top end face of lower layer's reinforced concrete prefabricated column, on prestressed anchor, lower layer
Column presstressed reinforcing steel top end part anchors into the bottom of reinforcing bar connector and mechanical connection, and the bottom end of upper strata post presstressed reinforcing steel anchors into
The top of reinforcing bar connector and mechanical connection, reinforcing bar connector, which protrudes into, anchors into space, the lower floor's post presstressed reinforcing steel with it is upper
Layer column presstressed reinforcing steel is contactless in reinforcing bar connector,
The top end face of lower layer's reinforced concrete prefabricated column is equipped with leveling locator, the top bars concrete prefabricated column
Bottom face holds out against and forms just gap between top bars concrete prefabricated column on leveling locator, the just gap
Sealing grouting material is inside filled, the prestressed reinforced concrete prefabricated post vertical connection structure forms vertical prestressing structure.
The reinforcing bar connector is tapped sleeve, and the top end part of the lower floor's post presstressed reinforcing steel and upper strata post are answered in advance
The bottom end of power muscle is provided with corresponding external screw thread.
The leveling locator is located at the edge of the top end face of lower layer's reinforced concrete prefabricated column,
When the top bars concrete prefabricated column and lower layer's reinforced concrete prefabricated column are cylinder, locator is leveled along reinforcing bar
The outside spacers of connector are equipped with one week；
When the top bars concrete prefabricated column and lower layer's reinforced concrete prefabricated column are polygon column, locator edge is leveled
The every side midpoint in the outside of reinforcing bar connector is equipped with one.
The leveling locator is steel cushion block or steel plate washer.
The sealing grouting material is fiber grouting material.
Integral preform has bracket, the Vierendeel girder overlap joint at the bean column node position of lower layer's reinforced concrete prefabricated column
It is fixed on bracket.
The construction method of this prestressed reinforced concrete prefabricated post vertical connection structure, construction procedure are as follows:
Step 1 unified prefabricated reinforced concrete prefabricated post and Vierendeel girder and is transported to scene in factory, wherein prestressed pore passage
Bottom end is reserved to anchor into space；
Step 2, penetrates lower floor's post presstressed reinforcing steel in the prestressed pore passage of lower layer's reinforced concrete prefabricated column, and lower floor's post is answered in advance
Power muscle is fixed after carrying out prestressed stretch-draw by prestressed anchor；
Step 3 covers reinforcing bar connector in the top end part of lower floor's post presstressed reinforcing steel, then in top bars concrete prefabricated column
Prestressed pore passage in penetrate upper strata post presstressed reinforcing steel, lift top bars concrete prefabricated column, upper layer and lower layer armored concrete
The prestressed pore passage of prefabricated post is aligned；
The bottom end of upper strata post presstressed reinforcing steel is anchored into reinforcing bar connector and is attached in place, realizes top bars by step 4
The standing of concrete prefabricated column；
Step 5, then the installation leveling locator on the top end face of lower layer's reinforced concrete prefabricated column, then proceedes to down put
Layer reinforced concrete prefabricated column makes the bottom face of top bars concrete prefabricated column compress leveling locator, adjustment leveling positioning
Device makes the installation site of top bars concrete prefabricated column in place；Reinforcing bar connector is completely into anchoring into space, lower layer's steel at this time
Just gap is formed between reinforced concrete prefabricated post and top bars concrete prefabricated column；
Step 6 carries out the initial tensioning of first stage to upper strata post presstressed reinforcing steel upwards, and top bars concrete prefabricated column is pre-
Continue to hold out against leveling locator under stress, realizes the positioning of top bars concrete prefabricated column；
Step 7 erects template in the outside in just gap, then fills sealing grouting material in just gap；
Step 8 after grouting material to be sealed reaches design strength, carries out opening completely for second stage to upper strata post presstressed reinforcing steel
It draws, realizes the prestressing force connection of top bars concrete prefabricated column；Construction terminates.
In the step 6, the stretching force of first stage deformed bar is to design prestressed 10%-20%.
In the step 8, the stretching force of second stage deformed bar is to design prestressed 101%-105%.
In the step 7, sealing grouting material is the high-intensity fiber grouting material for mixing volume ratio 0.1%.
Compared with prior art the invention has the characteristics that and the utility model has the advantages that
Vertical connection structure of the invention mainly includes upper and lower precast concrete column, and upper and lower precast concrete column is the main of structure
The component that primary structure member and the construction method need to connect, connection section are located at bean column node or more；Prestressing force connects reinforcing bar
It is the steel bar stress of precast concrete column and the safeguard measure of structural integrity；Reinforcing bar connector is segmentation deformed bar
Attachment device, using mechanical dry type connector such as screw steel bar connector etc.；Naughty locator is used for pillar
Vertical leveling when in place, while bearing the reinforcing bar pulling force just opened；High-intensity fiber grouting material is poured afterwards is intended only as smooth contact
Face is poured after reinforcing bar initial tensioning, is reached design strength and is needed to bear the prestressed, reinforced of complete tensioning later, guarantees
Pillar contact surface is smooth, uniform force.The present invention by deformed bar realize prefabricated frame trestle dry type connect, structure it is whole
What body relied on is entirety " constraint " effect of deformed bar, rather than is segmented the connection of reinforcing bar and concrete, is to be suitable for
Novel Precast Concrete Frame system.
What construction method of the invention mainly utilized is the prestressing force principle of deformed bar, passes through the first of deformed bar
Tensioning cooperates naughty locator to realize that pillar is stood and positioned；Then being reliably connected for pillar is guaranteed by complete tensioning again, tied
The lateral resistance and Self-resetting performance of structure entirety.
The invention has the characteristics that:
One, so that vertical structure is formed as vertical prestressing structure as main steel bar stress using deformed bar, have fine
Self-resetting performance, guarantee the safety built after shake.
Two, node is connected as dry type connection, does not have concrete connecting structure, after pour high-intensity fiber grouting material and be intended only as putting down
Whole contact surface, is fully solved in the prior art that grout sleeve is since worker's construction technology level is irregular, grout sleeve section
Point quality of connection is unreliable, and not firm disadvantage of being in the milk is easy to appear at sleeve grouting.
Three, dry type connection substantially reduces the wet construction amount at scene, improves construction efficiency；Pillar can also be reduced to construct
The usage amount of template and support in journey reduces construction cost.
Detailed description of the invention
The present invention will be further described in detail with reference to the accompanying drawing.
Fig. 1 is the end schematic diagram of structural schematic diagram and construction method step eight of the invention.
Fig. 2 is the end schematic diagram of construction method step four of the present invention.
Fig. 3 is the end schematic diagram of construction method step five of the present invention.
Fig. 4 is the end schematic diagram of construction method step six of the present invention.
Fig. 5 is the end schematic diagram of construction method step seven of the present invention.
Appended drawing reference: 1- top bars concrete prefabricated column, 2- lower layer reinforced concrete prefabricated column, 3- lower floor's post are pre-
Stress rib, 4- upper strata post presstressed reinforcing steel, 5- Vierendeel girder, 6- reinforcing bar connector, 7- level locator, 8- seals grouting material,
9- anchors into space, 10- just gap, 11- prestressed pore passage, 12- prestressed anchor, 13- template, 14- bracket.
Specific embodiment
Embodiment is referring to shown in Fig. 1-5, a kind of prestressed reinforced concrete prefabricated post vertical connection structure, including upper layer steel
Reinforced concrete prefabricated post 1 and lower layer's reinforced concrete prefabricated column 2, lower layer's reinforced concrete prefabricated column 2 and top bars are mixed
It is located at the top of the connecting node of lower layer's reinforced concrete prefabricated column 2 and Vierendeel girder 5 at the connecting node of solidifying soil prefabricated post 1.
One group of elongated vertical prestressing force opening, each prestressed pore passage are equipped in lower layer's reinforced concrete prefabricated column
It is inside installed with a lower floor's post presstressed reinforcing steel 3, the top end part of lower layer's reinforced concrete prefabricated column 2 is embedded with prestressed anchor 12, institute
The top end face that lower floor's post presstressed reinforcing steel 3 stretches out lower layer's reinforced concrete prefabricated column 2 upwards is stated, 12 sets of prestressed anchor in lower floor's post
On presstressed reinforcing steel 3 and its top side face is concordant with the top end face of lower layer reinforced concrete prefabricated column 2.
It is corresponding with above and below lower layer's reinforced concrete prefabricated column logical equipped with one group in the top bars concrete prefabricated column
Long vertical prestressing force opening is installed with a upper strata post presstressed reinforcing steel 4, the upper strata post prestressing force in each prestressed pore passage
Muscle 4 extends downwardly the bottom face of top bars concrete prefabricated column 1, and the prestressed pore passage is at the bottom of upper strata post presstressed reinforcing steel 4
End surrounding, which widens to be formed, anchors into space 9 for what reinforcing bar connector 6 accommodated.
The vertical connection structure further includes reinforcing bar connector 6, leveling locator 7 and sealing grouting material 8.
The bottom face of the reinforcing bar connector 6 withstands on the top end face of lower layer's reinforced concrete prefabricated column 2, prestressed anchor 12
On, 3 top end part of lower floor's post presstressed reinforcing steel anchors into the bottom of reinforcing bar connector 6 and mechanical connection, upper strata post presstressed reinforcing steel 4
Bottom end anchors into the top of reinforcing bar connector 6 and mechanical connection, and reinforcing bar connector 6, which protrudes into, anchors into space 9, the lower floor's post
Presstressed reinforcing steel 3 is contactless in reinforcing bar connector 6 with upper strata post presstressed reinforcing steel 4.
Reinforcing bar connector 6 described in the present embodiment is tapped sleeve, the top end part of the lower floor's post presstressed reinforcing steel 3
Corresponding external screw thread is provided with the bottom end of upper strata post presstressed reinforcing steel 4.
The top end face of lower layer's reinforced concrete prefabricated column 2 is equipped with leveling locator 7, and the top bars concrete is pre-
The bottom face of column 1 processed is held out against forms just gap 10, institute on leveling locator 7 between top bars concrete prefabricated column 1
It states and fills sealing grouting material 8 in just gap 10, the prestressed reinforced concrete prefabricated post vertical connection structure is formed vertically
Prestressed structure.The sealing grouting material 8 is fiber grouting material, specially mixes the high-intensity fiber grouting material of volume ratio 0.1%.
The leveling locator 7 is located at the edge of the top end face of lower layer's reinforced concrete prefabricated column 2, and the top bars are mixed
When solidifying soil prefabricated post 1 and lower layer's reinforced concrete prefabricated column 2 are cylinder, locator 7 is leveled between the outside of reinforcing bar connector 6
Every equipped with one week；When the top bars concrete prefabricated column 1 and lower layer's reinforced concrete prefabricated column 2 are polygon column, adjust
Flat locator 7 is equipped with one along the every side midpoint in the outside of reinforcing bar connector 6.In the present embodiment, the top bars concrete is pre-
Column 1 and lower layer's reinforced concrete prefabricated column 2 processed are four side rectangular columns, level locator 7 along the every side in the outside of reinforcing bar connector 6
Midpoint is equipped with one.The leveling locator 7 is steel cushion block or steel plate washer.
Integral preform has bracket 14, the Vierendeel girder at the bean column node position of lower layer's reinforced concrete prefabricated column 2
Overlap joint is fixed on bracket 14.
The construction method of this prestressed reinforced concrete prefabricated post vertical connection structure, construction procedure are as follows:
Step 1 unified prefabricated reinforced concrete prefabricated post and Vierendeel girder 5 and is transported to scene in factory, wherein prestressed pore passage 11
Bottom end reserved anchor into space 9.
Step 2 penetrates lower floor's post presstressed reinforcing steel 3 in the prestressed pore passage 11 of lower layer's reinforced concrete prefabricated column 2, under
Layer column presstressed reinforcing steel 3 is fixed after carrying out prestressed stretch-draw by prestressed anchor 12.
Step 3, by 6 sets of the reinforcing bar connector top end parts in lower floor's post presstressed reinforcing steel 3, then in top bars concrete
Upper strata post presstressed reinforcing steel 4 is penetrated in the prestressed pore passage 11 of prefabricated post 1, lifts top bars concrete prefabricated column 1, upper layer and lower layer
The prestressed pore passage of reinforced concrete prefabricated column is aligned.
The bottom end of upper strata post presstressed reinforcing steel 4 is anchored into reinforcing bar connector 6 and is attached in place, in realization by step 4
The standing of layer reinforced concrete prefabricated column 1.
Step 5, then the installation leveling locator 7 on the top end face of lower layer's reinforced concrete prefabricated column 2, then proceedes to
Top bars concrete prefabricated column 1 is transferred, the bottom face of top bars concrete prefabricated column 1 is made to compress leveling locator 7, adjustment
Leveling locator makes the installation site of top bars concrete prefabricated column in place；Reinforcing bar connector 6 is completely into anchoring into sky at this time
Between 9, just gap 10 is formed between lower layer's reinforced concrete prefabricated column 2 and top bars concrete prefabricated column 1.
Step 6 carries out the initial tensioning of first stage to upper strata post presstressed reinforcing steel 4 upwards, first stage deformed bar
Stretching force is to design prestressed 10%-20%.It is 10% in the present embodiment.Top bars concrete prefabricated column 1 is in prestressing force effect
Under continue to hold out against leveling locator 7, realize the positioning of top bars concrete prefabricated column 1.
Step 7 erects template 13 in the outside in just gap 10, then fills sealing grouting material in just gap 10
8。
Step 8 after grouting material 8 to be sealed reaches design strength, carries out second stage to upper strata post presstressed reinforcing steel 4
Complete tensioning, the stretching force of second stage deformed bar are to design prestressed 101%-105%.It is 103% in the present embodiment.
Realize the prestressing force connection of top bars concrete prefabricated column 1；Construction terminates.
Claims (10)
1. a kind of prestressed reinforced concrete prefabricated post vertical connection structure, including top bars concrete prefabricated column (1) and under
Layer reinforced concrete prefabricated column (2), it is characterised in that: lower layer's reinforced concrete prefabricated column (2) and top bars concrete
It is located at the top of the connecting node of lower layer's reinforced concrete prefabricated column (2) and Vierendeel girder (5) at the connecting node of prefabricated post (1),
It is equipped with one group of elongated vertical prestressing force opening in lower layer's reinforced concrete prefabricated column, in each prestressed pore passage
It is installed with a lower floor's post presstressed reinforcing steel (3), the top end part of lower layer's reinforced concrete prefabricated column (2) is embedded with prestressed anchor (12),
The lower floor's post presstressed reinforcing steel (3) stretches out the top end face of lower layer's reinforced concrete prefabricated column (2), prestressed anchor (12) set upwards
On lower floor's post presstressed reinforcing steel (3) and its top side face is concordant with the top end face of lower layer's reinforced concrete prefabricated column (2),
It is corresponding elongated with above and below lower layer's reinforced concrete prefabricated column equipped with one group in the top bars concrete prefabricated column
Vertical prestressing force opening is installed with a upper strata post presstressed reinforcing steel (4), the upper strata post presstressed reinforcing steel in each prestressed pore passage
(4) bottom face of top bars concrete prefabricated column (1) is extended downwardly, the prestressed pore passage is in upper strata post presstressed reinforcing steel (4)
Bottom end surrounding widen to be formed for reinforcing bar connector (6) accommodate anchor into space (9),
The vertical connection structure further includes reinforcing bar connector (6), leveling locator (7) and seals grouting material (8),
The bottom face of the reinforcing bar connector (6) withstands on the top end face of lower layer's reinforced concrete prefabricated column (2), prestressed anchor
(12) on, lower floor's post presstressed reinforcing steel (3) top end part anchors into the bottom of reinforcing bar connector (6) and mechanical connection, and upper strata post is pre-
The bottom end of stress rib (4) anchors into the top of reinforcing bar connector (6) and mechanical connection, and reinforcing bar connector (6), which protrudes into, to be anchored into
Space (9), the lower floor's post presstressed reinforcing steel (3) and upper strata post presstressed reinforcing steel (4) are contactless in reinforcing bar connector (6),
Leveling locator (7), the top bars coagulation are equipped on the upside of the top end face of lower layer's reinforced concrete prefabricated column (2)
The bottom face of native prefabricated post (1) is held out against to be formed just between top bars concrete prefabricated column (1) in leveling locator (7)
It opens gap (10), fills sealing grouting material (8) in just gap (10), the prestressed reinforced concrete prefabricated post is vertical
Connection structure forms vertical prestressing structure.
2. prestressed reinforced concrete prefabricated post vertical connection structure according to claim 1, it is characterised in that: the steel
Muscle connector (6) is tapped sleeve, the top end part of the lower floor's post presstressed reinforcing steel (3) and upper strata post presstressed reinforcing steel (4)
Bottom end be provided with corresponding external screw thread.
3. prestressed reinforced concrete prefabricated post vertical connection structure according to claim 1, it is characterised in that: the tune
Flat locator (7) is located at the edge of the top end face of lower layer's reinforced concrete prefabricated column (2),
When the top bars concrete prefabricated column (1) and lower layer's reinforced concrete prefabricated column (2) are cylinder, locator is leveled
(7) it is equipped with one week along the outside spacers of reinforcing bar connector (6)；
When the top bars concrete prefabricated column (1) and lower layer's reinforced concrete prefabricated column (2) are polygon column, leveling is fixed
Position device (7) is equipped with one along the every side midpoint in the outside of reinforcing bar connector (6).
4. prestressed reinforced concrete prefabricated post vertical connection structure according to claim 3, it is characterised in that: the tune
Flat locator (7) is steel cushion block or steel plate washer.
5. prestressed reinforced concrete prefabricated post vertical connection structure according to claim 1, it is characterised in that: described close
Sealing grouting material (8) is fiber grouting material.
6. prestressed reinforced concrete prefabricated post vertical connection structure according to claim 1, it is characterised in that: under described
There is bracket (14) integral preform at the bean column node position of layer reinforced concrete prefabricated column (2), the Vierendeel girder overlap joint is fixed on
On bracket (14).
7. a kind of prestressed reinforced concrete prefabricated post vertical connection structure according to claim 2-6 any one is applied
Work method, which is characterized in that construction procedure is as follows:
Step 1 unified prefabricated reinforced concrete prefabricated post and Vierendeel girder (5) and is transported to scene in factory, wherein prestressed pore passage
(11) bottom end is reserved to anchor into space (9)；
Step 2 penetrates lower floor's post presstressed reinforcing steel (3) in the prestressed pore passage (11) of lower layer's reinforced concrete prefabricated column (2),
Lower floor's post presstressed reinforcing steel (3) is fixed after carrying out prestressed stretch-draw by prestressed anchor (12)；
Step 3 covers reinforcing bar connector (6) in the top end part of lower floor's post presstressed reinforcing steel (3), then in top bars concrete
It penetrates upper strata post presstressed reinforcing steel (4), lifts top bars concrete prefabricated column (1) in the prestressed pore passage (11) of prefabricated post (1),
The prestressed pore passage of upper layer and lower layer reinforced concrete prefabricated column is aligned；
The bottom end of upper strata post presstressed reinforcing steel (4) is anchored into reinforcing bar connector (6) and is attached in place, in realization by step 4
The standing of layer reinforced concrete prefabricated column (1)；
Step 5, then installation leveling locator (7) on the top end face of lower layer's reinforced concrete prefabricated column (2), then proceedes to
It transfers top bars concrete prefabricated column (1), the bottom face of top bars concrete prefabricated column (1) is made to compress leveling locator
(7), adjustment leveling locator makes the installation site of top bars concrete prefabricated column in place；Reinforcing bar connector (6) is complete at this time
Into anchoring into space (9), is formed between lower layer's reinforced concrete prefabricated column (2) and top bars concrete prefabricated column (1) and just opened
Gap (10)；
Step 6 carries out the initial tensioning of first stage, top bars concrete prefabricated column to upper strata post presstressed reinforcing steel (4) upwards
(1) continue to hold out against leveling locator (7) under prestressing force effect, realize the positioning of top bars concrete prefabricated column (1)；
Step 7 erects template (13) in the outside of just gap (10), sealing grouting is then filled in just gap (10)
Expect (8)；
Step 8 after grouting material (8) to be sealed reaches design strength, carries out second stage to upper strata post presstressed reinforcing steel (4)
The prestressing force connection of top bars concrete prefabricated column (1) is realized in complete tensioning；Construction terminates.
8. the construction method of prestressed reinforced concrete prefabricated post vertical connection structure according to claim 7, feature
Be: in the step 6, the stretching force of first stage deformed bar is to design prestressed 10%-20%.
9. the construction method of prestressed reinforced concrete prefabricated post vertical connection structure according to claim 8, feature
Be: in the step 8, the stretching force of second stage deformed bar is to design prestressed 101%-105%.
10. the construction method of prestressed reinforced concrete prefabricated post vertical connection structure according to claim 7, feature
Be: in the step 7, sealing grouting material is the high-intensity fiber grouting material for mixing volume ratio 0.1%.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593486A (en) * | 2019-09-25 | 2019-12-20 | 中国电力工程顾问集团中南电力设计院有限公司 | Assembled concrete column node connection structure |
| CN112575896A (en) * | 2020-12-29 | 2021-03-30 | 中铁三局集团建筑安装工程有限公司 | Complex steel reinforced concrete composite structure and construction method |
| CN112796954A (en) * | 2021-02-02 | 2021-05-14 | 上海市机电设计研究院有限公司 | Method for adjusting gap between concrete tower barrel and steel tower barrel of wind turbine generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005042491A (en) * | 2003-07-25 | 2005-02-17 | Oriental Construction Co Ltd | Prestressed concrete structure |
| US20180127966A1 (en) * | 2016-11-04 | 2018-05-10 | Kurosawa Construction Co., Ltd. | Method for jointing concrete column and iron beam |
| CN108661171A (en) * | 2018-07-03 | 2018-10-16 | 江苏南通二建集团有限公司 | A kind of prefabricated assembled concrete frame joint connection structure |
| CN209874048U (en) * | 2019-03-27 | 2019-12-31 | 中国建筑标准设计研究院有限公司 | Vertical connection structure of prestressed reinforced concrete prefabricated column |
-
2019
- 2019-03-27 CN CN201910237107.0A patent/CN109914589B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005042491A (en) * | 2003-07-25 | 2005-02-17 | Oriental Construction Co Ltd | Prestressed concrete structure |
| US20180127966A1 (en) * | 2016-11-04 | 2018-05-10 | Kurosawa Construction Co., Ltd. | Method for jointing concrete column and iron beam |
| CN108661171A (en) * | 2018-07-03 | 2018-10-16 | 江苏南通二建集团有限公司 | A kind of prefabricated assembled concrete frame joint connection structure |
| CN209874048U (en) * | 2019-03-27 | 2019-12-31 | 中国建筑标准设计研究院有限公司 | Vertical connection structure of prestressed reinforced concrete prefabricated column |
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| CN110593486A (en) * | 2019-09-25 | 2019-12-20 | 中国电力工程顾问集团中南电力设计院有限公司 | Assembled concrete column node connection structure |
| CN112575896A (en) * | 2020-12-29 | 2021-03-30 | 中铁三局集团建筑安装工程有限公司 | Complex steel reinforced concrete composite structure and construction method |
| CN112575896B (en) * | 2020-12-29 | 2022-03-29 | 中铁三局集团建筑安装工程有限公司 | Complex steel reinforced concrete composite structure and construction method |
| CN112796954A (en) * | 2021-02-02 | 2021-05-14 | 上海市机电设计研究院有限公司 | Method for adjusting gap between concrete tower barrel and steel tower barrel of wind turbine generator |
| CN112796954B (en) * | 2021-02-02 | 2021-10-22 | 上海市机电设计研究院有限公司 | Method for adjusting gap between concrete tower barrel and steel tower barrel of wind turbine generator |
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