CN109881826A - Sandwich thermal insulation board precast facade Cast-in-Situ Segment formwork reinforcement method - Google Patents
Sandwich thermal insulation board precast facade Cast-in-Situ Segment formwork reinforcement method Download PDFInfo
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- CN109881826A CN109881826A CN201910216253.5A CN201910216253A CN109881826A CN 109881826 A CN109881826 A CN 109881826A CN 201910216253 A CN201910216253 A CN 201910216253A CN 109881826 A CN109881826 A CN 109881826A
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Abstract
The present invention provides a kind of sandwich thermal insulation board precast facade Cast-in-Situ Segment formwork reinforcement method: step 1: according to different installation sites when wall is prefabricated built-in connection one, connection two or reinforcing bar pull hook；Second step, exterior wall is in place, then installation wall, corner and aileron position carry out Cast-in-Situ Segment reinforcement construction；Third step, harness cord screw rod is welded in the end of connector one, connector two, when template is installed, screw rod passes through pattern hole, the welding section of connector one is outer on the inside of template, and two welding section of connector passes through pattern hole, corner and aileron position Cast-in-Situ Segment, before template installation, first embedded bar pull hook and template or reinforcing bar are tensed with No. 12 iron wires；4th step installs wall Cast-in-Situ Segment inner side template；5th step after form removable, directly cuts off harness cord screw rod, screw rod end brushing antirust paint along wall, remaining screw rod is cleaned out, continued to use to lower layer.The present invention reduces exterior wall holes blocking process, avoids infiltration hidden danger；Operating platform, less investment are not needed.
Description
Technical field
The invention belongs to precast wall body technical field of construction, and in particular to a kind of sandwich thermal insulation board precast facade Cast-in-Situ Segment mould
Plate reinforcement means.
Background technique
As country widelys popularize assembled architecture, assembly of shear wall structure system is used widely.For this knot
The connecting portion of structure system, prefabricated components and Cast-in-Situ Segment becomes Construction control emphasis, prefabricated outer in particular by sandwich thermal insulation board
Wall Cast-in-Situ Segment template construction, even more control stress point.It is the reserving hole on prefabricated panel, prefabricated panel by usual construction method
It installs, after Cast-in-Situ Segment reinforcement construction is complete, carries on the back flitch on the outside of impeller outside dry wall, using side form in split bolt and wall
Plate connection, the method one side wall outer side flitch and split bolt construction, need to set up operating platform；On the other hand it needs
There is infiltration hidden danger in the reserving hole on sandwich thermal insulation board precast wall body, holes blocking.
It is typically employed in reserving hole on prefabricated outer wall panel, after prefabricated panel installation, using reserving hole, on the outside of wallboard
Outrigger or tool-type protective frame are installed, operator constructs at station on outrigger.Reinforcement construction is complete, in prefabricated panel siphonal lobe
The outer side back flitch of plate, wears prepared screw-bolt hole on prefabricated panel using split bolt, sockets with wallboard inner side template, carry out wallboard
Template is fixed.The method needs the reserving hole on prefabricated outer wall panel, as the mounting hole of outrigger, after outrigger is removed, then to pre-
Hole of boxing out block and water-proofing treatment, increases process and cost, while because exterior wall is sandwich thermal insulated precast wall body, hole envelope
It is stifled to there is infiltration hidden danger.
Summary of the invention
It needs to cause construction later period wall to have infiltration hidden danger in exterior wall reserving hole to solve formwork reinforcement in the prior art
The problem of.
Solution provided by the invention is:
A kind of sandwich thermal insulation board precast facade Cast-in-Situ Segment formwork reinforcement method, construction procedure are as follows:
Step 1: when prefabricated sandwich heat preserving wall wall is prefabricated simultaneously pre-buried corresponding ruggedized construction:
The construction of precast facade Cast-in-Situ Segment formwork reinforcement built-in fitting:
1, a) prefabricated panel Cast-in-Situ Segment when, on the outer impeller at the cast-in-place position of wall, built-in connection one, connector one
It is made of reinforcing bar, its one end is made into bent anchor, catches on siphonal lobe plate steel mesh, binds with steel mesh；The other end is on the inside of wall
Side extends, and extension elongation is equal to cast-in-situ wall thickness, end brush antirust paint；B) when prefabricated panel, in interior impeller away from avris
The position 100mm, built-in connection two, connector two are made of a reinforcing bar, and two one end of connector is protruded into precast wall body
Leaf, end are converted into crotch；The other end stretches out precast wall body；
2, according to different Cast-in-Situ Segment joint forms, each connector is determined under the premise of guaranteeing that outer impeller piece is strict
One horizontal space and away from siphonal lobe edges of boards distance, while determining that each connector one and connector two are vertically arranged rule along wall；
3, connector one and when pre-buried connector two, will avoid impeller reserved steel bar position in wall；
The construction of rotation angle position Cast-in-Situ Segment formwork reinforcement built-in fitting:
When rotation angle position exterior wall is prefabricated, in exterior wall corner away from the position impeller 100mm outside Cast-in-Situ Segment, embedded bar pull hook should
Reinforcing bar pull hook one end is made into bent anchor, catches on siphonal lobe plate steel mesh, and the other end stretches out outer impeller, and end extends to cast-in-place segment limit
It is interior and be converted into back bending hook；
The construction of aileron position Cast-in-Situ Segment formwork reinforcement built-in fitting:
When aileron position exterior wall is prefabricated, the position impeller 100mm outside away from exterior wall Cast-in-Situ Segment, the pre-buried reinforcing bar pull hook；
Second step, exterior wall is in place, then installation wall, corner and aileron position carry out Cast-in-Situ Segment reinforcement construction；
Third step, wall Cast-in-Situ Segment reinforcement construction is complete, and template installation is carried out on the basis of above-mentioned precast construction:
Specifically: harness cord screw rod a) is welded in connector one, two end of connector respectively using spot welding, connector one welds
Section is located in Cast-in-Situ Segment wall, and screw rod wears pattern hole when template is installed；Two welding section of connector is located at outside Cast-in-Situ Segment wall, mould
Welding section passes through pattern hole when plate is installed；B) corner and aileron position Cast-in-Situ Segment first will be pre- with No. 12 iron wires before template installation
It buries reinforcing bar pull hook and template or reinforcing bar tenses；
4th step installs wall Cast-in-Situ Segment inner side template；
5th step after form removable, directly cuts off harness cord screw rod along wall, screw rod end brushing antirust paint, and remaining screw rod is clear
Reason is clean, continues to use to lower layer.
Formwork reinforcement method provided by the invention reduces exterior wall holes blocking process, avoids infiltration hidden danger；Wall is saved again
External side operating platform peace tears expense open；It using detachable split bolt, is used in turn, reduces cost；Outer porthole is eliminated simultaneously
Hole blocks process, accelerates construction progress.
Preferably, the one bent anchor length of connector, which is greater than, waits 5d.
Preferably, it is from upper to upper by 200mm+500mm+600mm+600mm+ that embedded bar, which is vertically arranged spacing along wall,
The progressive setting of 600mm.
Preferably, the vertical spacing of reinforcing bar pull hook presses the progressive setting of 200mm+500mm+1200mm+600mm.
Detailed description of the invention:
Fig. 1 Side fascia Cast-in-Situ Segment template mounting structure；
Fig. 2 Side fascia Cast-in-Situ Segment template mounting structure elevation；
Fig. 3 rotation angle position Cast-in-Situ Segment template installation diagram；
Fig. 4 rotation angle position Cast-in-Situ Segment template mounting structure elevation；
Fig. 5 is aileron Cast-in-Situ Segment template installation diagram.
Specific embodiment
Below by example the present invention is described in detail scheme: in conjunction with attached drawing 1-5, wherein precast facade basic structure includes outer
Impeller 1, insulation board 2, interior impeller 3, template 4, Cast-in-Situ Segment 5 for Cast-in-Situ Segment supporting, the invention also includes connector 1, even
Fitting 27, screw rod 8, reinforcing bar pull hook 9.
The sandwich thermal insulation board precast facade Cast-in-Situ Segment formwork reinforcement method that the present invention uses, certain detailed construction procedure
It is:
Step 1: the pre-buried corresponding ruggedized construction first on prefabricated sandwich heat preserving wall: being pressed in this explanation when wall is prefabricated
Different structure classification respectively illustrates the pre-buried structure on different structure:
1, specifically: 1) in prefabricated panel Cast-in-Situ Segment, on the outer impeller 1 at the cast-in-place position of wall, built-in connection one
6, connector 1 uses diameter 12mm round bar, and reinforcing bar one end is made into bent anchor, and length is not less than 5d, catches on outer 1 reinforcing bar of impeller
Net is bound with steel mesh, and the other end extends to wall inner side edge, and extension elongation is equal to 5 thickness of wall body of Cast-in-Situ Segment, in this example,
Connector 1 stretches out the outer 200mm of siphonal lobe insulation board 2, end brush antirust paint.Connector 1 is also capable as wall top die roller.
2) according to different 5 joint forms of Cast-in-Situ Segment, determine that each connector 1 is horizontal under the premise of guaranteeing that outer 1 piece of impeller is strict
Spacing and away from siphonal lobe edges of boards distance, there are also each connector 1 and is vertically arranged rule along wall.In this practical example, connector one
6 to be vertically arranged spacing along wall be from upper to upper by the progressive setting of 200mm, 500mm, 600mm, 600mm, 600mm, i.e., under the
Layer connector 1 is arranged on away from wall bottom edge 200mm height, and the second layer compares the second layer away from first layer 500mm high, third layer
High 600mm again, the 4th layer, the 5th 600mm higher than preceding layer.3) it is reserved that impeller in wall is avoided when connector one is pre-buried
Reinforcement location.As shown in Figs. 1-2.
2, when Side fascia is prefabricated, in interior impeller 3 away from the position avris 100mm, built-in connection 27, connector 27 is also
It is made of a 12mm round bar.Precast wall body internal lobe is protruded into 27 one end of connector, and the other end stretches out precast wall body.Connector
27 entire lengths are not less than 200mm, and it is 50mm that it, which stretches out wall part Design of length, it is embedded in the part in interior impeller 3
Length is not less than 150mm, and pre-buried portions end is made into 50mm hook.The setting of the vertical spacing of connector 27 and connector one
6 identical rules.Referring to Fig. 1-2.
3, when rotation angle position exterior wall is prefabricated, in exterior wall corner away from the position impeller 100mm outside Cast-in-Situ Segment, pre-buried diameter 10mm
Reinforcing bar pull hook 9 made of reinforcing bar, bending is made into bent anchor at 9 one end 50mm length of reinforcing bar pull hook, catches on outer 1 reinforcing bar of impeller
Net, the other end stretch out outer impeller 50mm, extend in 5 range of Cast-in-Situ Segment and are converted into back bending.The vertical spacing of reinforcing bar pull hook 9 is pressed
The progressive setting of 200mm+500mm+1200mm+600mm, i.e. lowest level reinforcing bar pull hook are arranged away from wall bottom edge 200mm height
On, the second layer is 500mm higher than first layer, and third layer is higher than the second layer by 1200, and the 4th layer is higher by 600mm than third layer again.With reference to
Shown in Fig. 3-4.
4, when aileron position exterior wall is prefabricated, the position impeller 100mm embedded bar pull hook 9, the steel outside away from exterior wall Cast-in-Situ Segment
Muscle pull hook 9 is also to be made of the reinforcing bar of diameter 10mm, and shape and setting position are identical as on rotation angle position exterior wall, is erected
It is arranged to spacing also identical with rotation angle position exterior wall embedded bar pull hook.Such as Fig. 5.
Second step, exterior wall is in place, then installation wall, corner and aileron position carry out Cast-in-Situ Segment reinforcement construction.
Third step, wall Cast-in-Situ Segment reinforcement construction is complete, and template installation is carried out on the basis of above-mentioned precast construction:
Specifically: screw rod 8 a) is welded in connector 1,27 end of connector respectively using spot welding, screw rod 8 is using straight
The harness cord screw rod of diameter 14mm, the 50mm Chong Die with connector one or connector two of screw rod 8 when welding, this 50mm overlap length weld
Connect section.Screw rod 8 wears pattern hole when template 4 is installed, and one 6 welding section of connector is in 4 inside Cast-in-Situ Segment 5 of template；Template installation
When 27 welding section of connector pass through pattern hole, other than external 5 wall range of Cast-in-Situ Segment.B) corner and aileron position Cast-in-Situ Segment mould
Before plate installation, first embedded bar pull hook and template 4 or reinforcing bar are tensed with No. 12 iron wires.
4th step installs wall Cast-in-Situ Segment inner side template.
5th step after form removable, directly cuts off harness cord screw rod along wall, 4 end brushing antirust paint of screw rod, and remaining screw rod is clear
Reason is clean, continues to use to lower layer.
This construction method is easy to operate, and it is fast that peace tears speed open, reduces exterior wall plugging construction process, avoids external wall seepage hidden danger,
Cancel external scaffolding construction；It is used in turn using hinged bolt, i.e. guarantee concrete metope presentation quality, and reduces construction cost.
Beneficial effects of the present invention: 1. exterior walls are not boxed out hole, and external wall seepage hidden danger is avoided.2. it is flat not need to set up wall outer side operation
Platform reduces outrigger expense.3. reducing exterior wall closure and water-proofing treatment process, shortens the construction period, reduce cost.4. template connecting piece
Pre-buried with component in precast plant, site operation is convenient, environmentally protective.5. built-in connection uses reinforcing bar clout, cost is reduced.
Claims (4)
1. a kind of sandwich thermal insulation board precast facade Cast-in-Situ Segment formwork reinforcement method, construction procedure are as follows:
Step 1: when prefabricated sandwich heat preserving wall wall is prefabricated simultaneously pre-buried corresponding ruggedized construction:
The construction of precast facade Cast-in-Situ Segment formwork reinforcement built-in fitting:
1, a) prefabricated panel Cast-in-Situ Segment when, on the outer impeller at the cast-in-place position of wall, built-in connection one, connector one use steel
Muscle is made, its one end is made into bent anchor, catches on siphonal lobe plate steel mesh, binds with steel mesh；The other end extends to wall inner side edge,
Extension elongation is equal to cast-in-situ wall thickness, end brush antirust paint；B) when prefabricated panel, in interior impeller away from the position avris 100mm, in advance
Connector two is buried, connector two is made of a reinforcing bar, and precast wall body internal lobe is protruded into two one end of connector, and end is converted into curved
Hook；The other end stretches out precast wall body；
2, according to different Cast-in-Situ Segment joint forms, determine that each connector one is horizontal under the premise of guaranteeing that outer impeller piece is strict
Spacing and away from siphonal lobe edges of boards distance, while determining that each connector one and connector two are vertically arranged rule along wall；
3, connector one and when pre-buried connector two, will avoid impeller reserved steel bar position in wall；
The construction of rotation angle position Cast-in-Situ Segment formwork reinforcement built-in fitting:
When rotation angle position exterior wall is prefabricated, in exterior wall corner away from the position impeller 100mm outside Cast-in-Situ Segment, embedded bar pull hook, the reinforcing bar
Pull hook one end is made into bent anchor, catches on siphonal lobe plate steel mesh, and the other end stretches out outer impeller, and end extends in cast-in-place segment limit and rolls over
At back bending hook；
The construction of aileron position Cast-in-Situ Segment formwork reinforcement built-in fitting:
When aileron position exterior wall is prefabricated, the position impeller 100mm outside away from exterior wall Cast-in-Situ Segment, the pre-buried reinforcing bar pull hook；
Second step, exterior wall is in place, then installation wall, corner and aileron position carry out Cast-in-Situ Segment reinforcement construction；
Third step, wall Cast-in-Situ Segment reinforcement construction is complete, and template installation is carried out on the basis of above-mentioned precast construction:
Specifically: harness cord screw rod a) is welded in connector one, two end of connector respectively using spot welding, one welding section of connector is set
In Cast-in-Situ Segment wall, screw rod wears pattern hole when template is installed；Two welding section of connector is located at outside Cast-in-Situ Segment wall, template installation
When welding section pass through pattern hole；B) corner and aileron position Cast-in-Situ Segment are first drawn embedded bar with No. 12 iron wires before template installation
It hooks and is tensed with template or reinforcing bar；
4th step installs wall Cast-in-Situ Segment inner side template；
5th step after form removable, directly cuts off harness cord screw rod, screw rod end brushing antirust paint along wall, remaining screw rod cleaning is done
Only, it is continued to use to lower layer.
2. sandwich thermal insulation board precast facade Cast-in-Situ Segment formwork reinforcement method according to claim 1, it is characterized in that: the connection
One bent anchor length of part, which is greater than, waits 5d.
3. sandwich thermal insulation board precast facade Cast-in-Situ Segment formwork reinforcement method according to claim 1, it is characterized in that: embedded bar
Being vertically arranged spacing along wall is from upper to upper by the progressive setting of 200mm+500mm+600mm+600mm+600mm.
4. sandwich thermal insulation board precast facade Cast-in-Situ Segment formwork reinforcement method according to claim 1, it is characterized in that: reinforcing bar pull hook
Vertical spacing presses the progressive setting of 200mm+500mm+1200mm+600mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216253.5A CN109881826A (en) | 2019-03-21 | 2019-03-21 | Sandwich thermal insulation board precast facade Cast-in-Situ Segment formwork reinforcement method |
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|---|---|---|---|
| CN201910216253.5A CN109881826A (en) | 2019-03-21 | 2019-03-21 | Sandwich thermal insulation board precast facade Cast-in-Situ Segment formwork reinforcement method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241955A (en) * | 2019-06-19 | 2019-09-17 | 中国二十二冶集团有限公司 | Assembling structure sandwich thermal insulation board precast facade Cast-in-Situ Segment single side formwork construction method |
| CN111997221A (en) * | 2020-08-12 | 2020-11-27 | 北京崇建工程有限公司 | Construction method for L-shaped node joint of assembled outer wall |
| CN113530230A (en) * | 2021-08-16 | 2021-10-22 | 王鹏 | Disposable concrete formwork connecting system based on split screw |
| CN113733309A (en) * | 2021-07-27 | 2021-12-03 | 新城控股集团实业发展有限公司 | Laminated slab reinforcing steel bar hole plugging structure and construction method thereof |
| CN113944318A (en) * | 2021-11-03 | 2022-01-18 | 上海建工五建集团有限公司 | Steel template reinforcing device, arc-shaped combined shaping steel template and using method thereof |
| CN115182482A (en) * | 2022-08-25 | 2022-10-14 | 中国建筑第七工程局有限公司 | Construction method of cavity prefabricated wall body matched with external frame free |
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| CN107700841A (en) * | 2017-09-30 | 2018-02-16 | 中国二十二冶集团有限公司 | Prefabricated exterior wall Cast-in-Situ Segment internal lobe Formwork Installation Method |
| CN109138413A (en) * | 2018-08-31 | 2019-01-04 | 上海二十冶建设有限公司 | A kind of formwork erection method at precast shear wall and cast-in-place corner wall node |
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| CN101285326A (en) * | 2008-06-02 | 2008-10-15 | 南通华新建工集团有限公司 | Handling method for external wall root node in process cast-in-situ integral construction |
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| CN107700841A (en) * | 2017-09-30 | 2018-02-16 | 中国二十二冶集团有限公司 | Prefabricated exterior wall Cast-in-Situ Segment internal lobe Formwork Installation Method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241955A (en) * | 2019-06-19 | 2019-09-17 | 中国二十二冶集团有限公司 | Assembling structure sandwich thermal insulation board precast facade Cast-in-Situ Segment single side formwork construction method |
| CN111997221A (en) * | 2020-08-12 | 2020-11-27 | 北京崇建工程有限公司 | Construction method for L-shaped node joint of assembled outer wall |
| CN113733309A (en) * | 2021-07-27 | 2021-12-03 | 新城控股集团实业发展有限公司 | Laminated slab reinforcing steel bar hole plugging structure and construction method thereof |
| CN113530230A (en) * | 2021-08-16 | 2021-10-22 | 王鹏 | Disposable concrete formwork connecting system based on split screw |
| CN113944318A (en) * | 2021-11-03 | 2022-01-18 | 上海建工五建集团有限公司 | Steel template reinforcing device, arc-shaped combined shaping steel template and using method thereof |
| CN115182482A (en) * | 2022-08-25 | 2022-10-14 | 中国建筑第七工程局有限公司 | Construction method of cavity prefabricated wall body matched with external frame free |
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