CN206457784U - Large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices - Google Patents
Large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices Download PDFInfo
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- CN206457784U CN206457784U CN201720140462.2U CN201720140462U CN206457784U CN 206457784 U CN206457784 U CN 206457784U CN 201720140462 U CN201720140462 U CN 201720140462U CN 206457784 U CN206457784 U CN 206457784U
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Abstract
The utility model provides a kind of large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices, and door frame is fixedly connected with external mold, and the crossbeam of door frame is fixedly connected by multiple internal model pull bars with internal model, and bottom bracket is provided with the bottom of external mold；Multiple built-in type tie rod screw rods are provided between external mold and internal model；The top of internal model is provided with the kink bent inwards；The bottom of internal model pull bar is provided with crotch, and crotch catches on the horizontal waling on the inside of internal model, and is fixedly connected with horizontal waling, and internal model pull bar passes through the kink of internal model, and internal model pull bar is fixedly connected after also extending through crossbeam and cushion block with nut.Construction method comprises the following steps：Mould plate supporting device is processed in factory；After position to the design size for adjusting internal model and external mold, column, crossbeam are installed；Internal model pull bar is installed, groove body pours, what the utility model realized many rib Prefabricated aqueducts of large span pours accurate size, without deformation.Overcome deformation of many rib Prefabricated aqueducts in casting process in the prior art.
Description
Technical field
The utility model is related to large span aqueduct construction technical field, particularly a kind of to can be used for water conservancy, water power, bridges and culverts etc.
Large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices of construction.
Background technology
In the construction of the domain engineerings such as highway bridge, water conservancy aqueduct, pregroove marks body component is lifted after concentration pre-casting inside
It has been a kind of technology and technique reached its maturity to put into engineering and use.The prefabricating technique of hydraulic engineering aqueduct compared with bridge, its
Distinguishing feature was aqueduct water-bound thing, antiseepage requires high, therefore the dimension precision requirement of prefabricated components is strict, carry out it is many
When rib Prefabricated aqueduct structure is prefabricated, it is necessary to carry out the installation accuracy of template and fixed support, can not occur template when aqueduct is poured
The problems such as deformation or floating, select rational formwork support structure and anti-deformation method particularly important.
Such as certain hydraulic engineering employs groove body prefabricating technique, single groove cross dimension：Internal periphery 6.5m × 5.0m（Clear span
× clear height）, outline 8.7m × 7.1~6.6m, bottom plate thickness 0.4m, sidewall thickness is 0.5m, dead slot weight about 1200t.Groove
Body is horizontal, longitudinal, vertically apply prestressing force.Longitudinally, laterally prestressing force is vertical pre- using fptk=1860kPa grades of steel strand wires
Stress uses PSB1080 diameter PS32 finish rolling screw thread deformed bars.Groove height 30m.Because of analysis on aqueduct structure, to employ many ribs thin
Wall construction, therefore interior external mold employs combination set shaped steel formwork, single form length is 1.92m, using shaped steel and locking bolt
Fixed, shuttering supporting and anti-deformation require high.
The U of Chinese patent literature CN 202192682 disclose a kind of inner form support system for aqueduct die, comprising：
Crossbeam, the crossbeam is fixed between the side template of internal model vis-a-vis；Included in some groups of telescopic arm groups, every group of telescopic arm group
At least one pair of telescopic arm, the pair of telescopic arm is symmetricly set on the side template of internal model vis-a-vis, wherein one end of telescopic arm
It is fixed on internal model side template, the other end is fixed on crossbeam；Lift-on/Lift-off System, is arranged on outside aqueduct die, passes through suspension arrangement
Longitudinal bearer.Change what traditional prefabricated case beam mould internal model deadweight was carried by bed die using the inner form support system of said structure
Mode, is effectively guaranteed the casting quality of aqueduct inner chamber concrete.But in the structure, it is higher to the rigidity requirement of crossbeam,
Which increase the size of crossbeam, the weight of whole template is also increased, the telescopic boom device structure of setting is complex, adds
Construction cost.And position relationship and deformation of the dimensional accuracy that pours of aqueduct except internal model, in addition it is also necessary to consider the deformation of external mold
Relative position relation between position relationship, and inside and outside mould, and in casting process internal model by buoyancy influenceed,
And it also requires the weight of whole template is reduced, to reduce the influence that template is conducted oneself with dignity to deflection.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of large-scale many rib Prefabricated aqueduct template Anti-deformation supports
Device, can overcome deformation of many rib Prefabricated aqueducts in casting process, and be easy to be rapidly assembled and disassembled, energy in the prior art
The template that Prefabricated aqueduct is enough effectively ensured is indeformable, non-rising, prevents lateral displacement, and the physical dimension after pouring, which meets, to be set
Meter is required, improves engineering construction quality.
In order to solve the above technical problems, the technical scheme that the utility model is used is：A kind of large-scale many rib Prefabricated aqueducts
Template deformation-preventing supporting device, including multiple door frames arranged along external mold, door frame are fixedly connected with external mold, and the crossbeam of door frame passes through
Multiple internal model pull bars are fixedly connected with internal model, and bottom bracket is provided with the bottom of external mold；
Multiple built-in type tie rod screw rods are provided between external mold and internal model；
The top of internal model is provided with the kink bent inwards；
In described internal model pull bar, the bottom of internal model pull bar is provided with crotch, and crotch catches on the horizontal waling on the inside of internal model, and
Be fixedly connected with horizontal waling, internal model pull bar pass through internal model kink, internal model pull bar also extend through after crossbeam and cushion block with nut
It is fixedly connected.
It is preferred that scheme in, in described door frame, the two ends of column are installed with flanged plate, and the bottom of column passes through flanged plate
It is fixedly connected with base, the top of column is fixedly connected by flanged plate with crossbeam；
Described crossbeam is at least two shaped steel fixed back-to-back, is provided with and is passed through for internal model pull bar between two shaped steel
Gap.
It is preferred that scheme in, the column is fixedly connected by many struts with external mold；
Described strut is the scaffolding steel pipe that adjusting screw or bowl fastening type are connected；
Multiple oblique pull holes for being connected with oblique pull steel wire rope are additionally provided with external mold.
It is preferred that scheme in, the top of bottom bracket is provided with the adjustable seats for being used for adjusting height, and adjustable seats are provided with
Many rack beams, rack beam is contacted provided with many support longerons, support longeron with the bottom of external mold.
It is preferred that scheme in, in described adjustable seats, screw sleeve in the support standpipe of bottom bracket, support standpipe
The top mouth of pipe is provided with adjusting nut, and adjusting nut is connected with screw flight, and the rotating seat on the top and deck bottom of screw rod is fixed
Connection, being formed between the top of screw rod and deck to relatively rotate, the attachment structure not being axially movable, and it is horizontal that deck is stuck in support
Liang Shang.
It is preferred that scheme in, in described built-in type tie rod screw rod, the second screw rod be located between internal model and external mold, the second spiral shell
Bar is provided with handle, and the termination of the second screw rod is provided with attaching nut's sleeve,
One end of first screw rod is through internal model and attaching nut's sleeve connection, and the other end passes through horizontal waling and self-locking nut
Connection；
One end of 3rd screw rod is through external mold and attaching nut's sleeve connection, and the other end passes through horizontal waling and self-locking nut
Connection.
A kind of construction method using above-mentioned large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices, including following step
Suddenly：
First, mould plate supporting device is processed in factory；
2nd, after external mold is assembled in place, the best position of support meanss is determined, in prefabricated Ground mounting seat；
3rd, after position to the design size for adjusting internal model and external mold, column is installed；
The 4th, crossbeam is installed；
The 5th, internal model pull bar is installed, the horizontal waling on the inside of internal model is caught in internal model pull bar bottom, and fixes company with horizontal waling
Connect, the top of internal model pull bar is tentatively fixed with crossbeam with nut；
6th, internal model pull bar is installed in place section by section, then precisely adjusts each internal model pull bar to connect tightness with crossbeam consistent；
The 7th, strut connection column and external mold are installed；
8th, column is fixedly connected with the pedestal of ground pre-plugged with steel wire rope；
9th, start groove body to pour, each nut is checked at regular intervals, is fastened in time when there is loosening；
Accurate size is poured by what above step realized many rib Prefabricated aqueducts of large span, without deformation.
It is preferred that scheme in, in step 3, external mold is supported on the top of bottom bracket, adjusts adjustable seats, makes external mold bottom
Portion's secure support.
It is preferred that scheme in, be additionally provided with multiple foundation piers, external mold two bottom sides are supported on foundation pier.
It is preferred that scheme in, in step 9, inspection once each attaching nut per 2-3 hour.
A kind of large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices that the utility model is provided, by using above-mentioned
Structures and methods, can overcome deformation of many rib Prefabricated aqueducts in casting process in the prior art.Can be in work progress
Fast Installation and taking-up Prefabricated aqueduct, also allow for being rapidly assembled and disassembled for template.It can effectively ensure that the template of Prefabricated aqueduct
It is indeformable, it is non-rising, lateral displacement is prevented, the physical dimension after pouring meets design requirement, improve engineering construction matter
Amount.Relative to scheme of the prior art, the utility model simplifies the supporting construction of correlation, also reduces construction cost.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples：
Fig. 1 is the integrally-built cross-sectional view of the utility model.
Fig. 2 is the structural representation of internal model pull bar in the utility model.
Fig. 3 is the facade structures schematic diagram of external mold.
Fig. 4 is the schematic side view of the utility model central post and crossbeam.
Fig. 5 is the A-A schematic cross-sectional views in Fig. 1.
Fig. 6 is the B-B schematic cross-sectional views in Fig. 1.
Fig. 7 is the close-up schematic view at C in Fig. 1.
Fig. 8 is the close-up schematic view at D in Fig. 1.
In figure：Column 1, oblique pull hole 101, strut 102, crossbeam 2, internal model pull bar 3, crotch 31, cushion block 32, nut 33 is interior
Mould 4, external mold 5, built-in type tie rod screw rod 6, self-locking nut 61, the first screw rod 62, attaching nut's sleeve 63, the second screw rod 64, hand
Handle 65, the 3rd screw rod 66, horizontal waling 7, bottom bracket 8, adjustable seats 9, deck 91, rotating seat 92, screw rod 93, adjusting nut
94, support standpipe 95, rack beam 10, base 11, support longeron 12, foundation pier 13.
Embodiment
Embodiment 1：
As in Fig. 1 ~ 6, a kind of large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices, including multiple arranged along external mold 5
Door frame, door frame is fixedly connected with external mold 5, and the crossbeam 2 of door frame is fixedly connected by multiple internal model pull bars 3 with internal model 4, in external mold
5 bottom is provided with bottom bracket 8；
Multiple built-in type tie rod screw rods 6 are provided between external mold 5 and internal model 4；
The top of internal model 4 is provided with the kink bent inwards；
In described internal model pull bar 3, the bottom of internal model pull bar 3 is provided with crotch 31, and crotch 31 catches on the transverse direction of the inner side of internal model 4
Waling 7, and be fixedly connected with horizontal waling 7, internal model pull bar 3 passes through the kink of internal model 4, and internal model pull bar 3 also extends through the He of crossbeam 2
It is fixedly connected after cushion block 32 with nut 33.Thus structure, is to realize the reliable fixation of external mold and internal model 4 with lighter weight,
And ensure that the relative position between external mold and internal model 4, external mold and internal model 4 obtain secure support, smaller external mold and internal model 4
Deflection.
It is preferred that scheme in such as Fig. 1 ~ 4, in described door frame, the two ends of column 1 are installed with the flanged plate in strap bolt hole, stand
The bottom of post 1 is fixedly connected by the flanged plate in strap bolt hole with base 11, the flanged plate that the top of column 1 passes through strap bolt hole
It is fixedly connected with crossbeam 2；The bolt of connection is using bolt of putting more energy into.Base 11 is is embedded in underground, and the bolt reliably anchored connects
Joint chair plate.
Described crossbeam 2 is at least two shaped steel fixed back-to-back, and band is welded with the position being attached with column 1
The flanged plate of bolt hole, is provided with the gap passed through for internal model pull bar 3 between two shaped steel.
As in Fig. 4, many root posts 1 are also interconnected by many longerons, three-dimensional frame structure are constituted, at framework two ends
Position, be additionally provided with the diagonal brace for ruggedized construction.
It is preferred that scheme such as Fig. 1 in, the column 1 is fixedly connected by many struts 102 with external mold 5；
Described strut 102 is the scaffolding steel pipe that adjusting screw or bowl fastening type are connected；In order to adjust and installing/dismounting.
Multiple oblique pull holes 101 for being connected with oblique pull steel wire rope are additionally provided with external mold 5.Thus structure, is easy to and oblique pull
Steel wire rope is fixedly connected, to avoid whole support meanss and template from lateral displacement occur.
It is preferred that scheme such as Fig. 1,7 in, the top of bottom bracket 8 is provided with the adjustable seats 9 for being used for adjusting height, adjustable supporting
Seat 9 is provided with many rack beams 10, and rack beam 10 is provided with many support longerons 12, the bottom of support longeron 12 and external mold 5
Portion is contacted.Thus structure, is easy to provide secure support to external mold 5, makes uniform force, also allow for the bottom leveling of external mold 5.
It is preferred that scheme such as Fig. 7 in, in described adjustable seats 9, screw rod 93 is enclosed on the support standpipe 95 of bottom bracket 8
Interior, the top mouth of pipe of support standpipe 95 is provided with adjusting nut 94.It is further preferred that also being set between the mouth of pipe and adjusting nut 94
There is thrust bearing, to reduce frictional force.Adjusting nut 94 is threadedly coupled with screw rod 93, top and the bottom of deck 91 of screw rod 93
Rotating seat 92 is fixedly connected, and being formed between the top of screw rod 93 and deck 91 to relatively rotate, the connection knot not being axially movable
Structure, deck 91 is stuck on rack beam 10.Handle is provided with adjusting nut 94, thus structure, workmen adjusts by rotating
Nut 94 is saved, you can the cope level of adjusting bracket longeron 12, so as to adjust the support height for external mold 5.
It is preferred that scheme such as Fig. 1,8 in, in described built-in type tie rod screw rod 6, the second screw rod 64 be located at internal model 4 and external mold
Between 5, the second screw rod 64 is provided with handle 65, and the termination of the second screw rod 64 is provided with attaching nut's sleeve 63,
One end of first screw rod 62 is connected through internal model 4 with attaching nut's sleeve 63, and the other end is through horizontal waling 7 and certainly
Split nut 61 is connected；
One end of 3rd screw rod 66 is connected through external mold 5 with attaching nut's sleeve 63, and the other end is through horizontal waling 7 and certainly
Split nut 61 is connected.Thus structure, is easy to position the relative position between internal model 4 and external mold 5, and after the completion of construction, energy
It is enough easily to remove the first screw rod 62 and the 3rd screw rod 66, pit is filled up with cement mortar, without entering to screw rod surrounding concrete
Row burrows, without being cut to screw rod.
Embodiment 2：
On the basis of embodiment 1, a kind of above-mentioned large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices of use
Construction method, comprises the following steps：
First, Structure Calculation, and design template support knot are carried out to template stress according to analysis on aqueduct structure and formwork structure feature
Structure；
For example, certain hydraulic engineering is intended using groove body prefabricating technique, single groove cross dimension：Internal periphery 6.5m × 5.0m clear span
× clear height, outline 8.7m × 7.1~6.6m, bottom plate thickness 0.4m, sidewall thickness is 0.5m, dead slot weight about 1200t.Groove body
Laterally, longitudinal direction and vertically apply prestressing force.Longitudinally, laterally prestressing force is vertical pre- using fptk=1860kPa grades of steel strand wires
Stress uses PSB1080 diameter PS32 finish rolling screw thread deformed bars.Groove height 30m.Because of analysis on aqueduct structure, to employ many ribs thin
Wall construction, therefore interior external mold need to be using combination set shaped steel formwork, single form length is 1.92m, using shaped steel and locking bolt
It is fixed.Support arrangement is designed on the basis of this structure, after being checked according to template deadweight and suffered concrete buoyancy, then is set
Count out the supporting construction for meeting engine request and processing.
According to design drawing, mould plate supporting device is processed in factory, and tries assembled in factory；
2nd, after external mold 5 is assembled in place, the best position of support meanss is determined, in prefabricated Ground mounting seat 11；
Before groove body internal model 4 and external mold 5 are installed, burying for firm fastener device and fixed pedestal is set in precasting yard in advance
Part, for fixing oblique pull steel wire rope；
3rd, after position to the design size for adjusting internal model 4 and external mold 5, column 1 is installed；With locking device by column and bottom
The locking of seat 11 is firm；Locking device is using bolt of putting more energy into.
It is preferred that scheme in, external mold 5 is supported on the top of bottom bracket 8, adjusts adjustable seats 9, makes the bottom of external mold 5 reliable
Support.
It is preferred that scheme in, be additionally provided with multiple foundation piers 13, the two bottom sides of external mold 5 are supported on foundation pier 13.
Groove body model sheetinstallat to substantially in place when, template size and the position of internal model 4 and external mold 5 need to be checked, it is ensured that correct
Bottom base 11 and column 1 are installed after errorless.
The 4th, crossbeam 2 is installed；With putting more energy into, crossbeam 2 is fixedly secured by screw rod with column 1.
The 5th, internal model pull bar 3 be installed, the horizontal waling 7 of the inner side of internal model 4 is caught in the bottom of internal model pull bar 3, and with horizontal waling 7
It is fixedly connected, the top of internal model pull bar 3 and crossbeam 2 are tentatively fixed with nut 33；
6th, internal model pull bar 3 is installed in place section by section, then precisely adjusts each internal model pull bar 3 and crossbeam to connect tightness consistent,
Cooperative bearing；Ensure that each internal model 4 and external mold 5 are conducted oneself with dignity and buoyancy is uniformly transferred to deformation-preventing supporting device during concreting；
The 7th, the connection column 1 of strut 102 and external mold 5 are installed；Described strut 102 is that adjusting screw or bowl fastening type are connected
Scaffolding steel pipe；For i.e. possible tension power, it is also possible to used scaffolding steel pipe by the position of thrust, be primarily subjected to pulling force
The position of position, such as oblique pull uses adjusting screw.External mold 5 is connected as an entirety with deformation-preventing supporting device, forms rigidity
Connection, it is ensured that concrete buoyancy reaches ground by anti-deformation device suffered by external mold when pouring, it is ensured that physical dimension is correct；
8th, column 1 is fixedly connected with the pedestal of ground pre-plugged with steel wire rope；With anti-deformation fastener device fix tightly
Lean on, prevent that lateral displacement occurs after structure stress.
9th, start groove body to pour, each nut is checked at regular intervals, is fastened in time when there is loosening；It is preferred that side
In case, once each attaching nut was checked per 2-3 hours.
Accurate size is poured by what above step realized many rib Prefabricated aqueducts of large span, without deformation.
Claims (6)
1. a kind of large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices, including it is multiple along external mold（5）The door frame of arrangement, it is special
Levying is：Door frame and external mold（5）It is fixedly connected, the crossbeam of door frame（2）Pass through multiple internal model pull bars（3）With internal model（4）It is fixedly connected,
In external mold（5）Bottom be provided with bottom bracket（8）；
External mold（5）With internal model（4）Between be provided with multiple built-in type tie rod screw rods（6）；
Internal model（4）Top be provided with the kink that bends inwards；
Described internal model pull bar（3）In, internal model pull bar（3）Bottom be provided with crotch（31）, crotch（31）Catch on internal model（4）Inner side
Horizontal waling（7）, and with horizontal waling（7）It is fixedly connected, internal model pull bar（3）Through internal model（4）Kink, internal model pull bar
（3）Also extend through crossbeam（2）And cushion block（32）Afterwards with nut（33）It is fixedly connected.
2. the large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices of one kind according to claim 1, it is characterized in that：It is described
Door frame in, column（1）Two ends be installed with flanged plate, column（1）Bottom pass through flanged plate and base（11）It is fixedly connected,
Column（1）Top pass through flanged plate and crossbeam（2）It is fixedly connected；
Described crossbeam（2）It is at least two shaped steel fixed back-to-back, is provided between two shaped steel and supplies internal model pull bar（3）Wear
The gap crossed.
3. the large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices of one kind according to claim 2, it is characterized in that：It is described
Column（1）Pass through many struts（102）With external mold（5）It is fixedly connected；
Described strut（102）The scaffolding steel pipe connected for adjusting screw or bowl fastening type；
External mold（5）On be additionally provided with multiple oblique pull holes for being connected with oblique pull steel wire rope（101）.
4. the large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices of one kind according to claim 1, it is characterized in that：Bottom
Support（8）Top be provided with and be used to adjust the adjustable seats of height（9）, adjustable seats（9）Provided with many rack beams（10）,
Rack beam（10）Provided with many support longerons（12）, support longeron（12）With external mold（5）Bottom contact.
5. the large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices of one kind according to claim 4, it is characterized in that：It is described
Adjustable seats（9）In, screw rod（93）It is enclosed on bottom bracket（8）Support standpipe（95）It is interior, support standpipe（95）Head tube
Mouth is provided with adjusting nut（94）, adjusting nut（94）With screw rod（93）Threaded connection, screw rod（93）Top and deck（91）Bottom
The rotating seat in portion（92）It is fixedly connected, screw rod（93）Top and deck（91）Between formed and can relatively rotated, can not axially move
Dynamic attachment structure, deck（91）It is stuck in rack beam（10）On.
6. the large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices of one kind according to claim 1, it is characterized in that：It is described
Built-in type tie rod screw rod（6）In, the second screw rod（64）Positioned at internal model（4）With external mold（5）Between, the second screw rod（64）It is provided with
Handle（65）, the second screw rod（64）Termination be provided with attaching nut's sleeve（63）,
First screw rod（62）One end pass through internal model（4）With attaching nut's sleeve（63）Connection, the other end passes through horizontal waling（7）
With self-locking nut（61）Connection；
3rd screw rod（66）One end pass through external mold（5）With attaching nut's sleeve（63）Connection, the other end passes through horizontal waling（7）
With self-locking nut（61）Connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720140462.2U CN206457784U (en) | 2017-02-16 | 2017-02-16 | Large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720140462.2U CN206457784U (en) | 2017-02-16 | 2017-02-16 | Large-scale many rib Prefabricated aqueduct template deformation-preventing supporting devices |
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| Publication Number | Publication Date |
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| CN206457784U true CN206457784U (en) | 2017-09-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677133A (en) * | 2017-02-16 | 2017-05-17 | 中国葛洲坝集团第工程有限公司 | Large-sized multi-rib precast aqueduct formwork anti-deformation supporting device and construction method |
-
2017
- 2017-02-16 CN CN201720140462.2U patent/CN206457784U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677133A (en) * | 2017-02-16 | 2017-05-17 | 中国葛洲坝集团第工程有限公司 | Large-sized multi-rib precast aqueduct formwork anti-deformation supporting device and construction method |
| CN106677133B (en) * | 2017-02-16 | 2019-02-12 | 中国葛洲坝集团第一工程有限公司 | Large-scale more rib Prefabricated aqueduct template deformation-preventing supporting devices and construction method |
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