CN105484167B - Construction method for unbalanced weight monitoring device for overall process of construction of hanging basket at upper part of horizontal rotation T structure - Google Patents
Construction method for unbalanced weight monitoring device for overall process of construction of hanging basket at upper part of horizontal rotation T structure Download PDFInfo
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- CN105484167B CN105484167B CN201610023468.1A CN201610023468A CN105484167B CN 105484167 B CN105484167 B CN 105484167B CN 201610023468 A CN201610023468 A CN 201610023468A CN 105484167 B CN105484167 B CN 105484167B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining unbalance
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Aiming at the defects of the existing bridge rotation construction monitoring method, the invention provides an unbalanced weight stress monitoring device and method for the overall process of construction of a hanging basket at the upper part of a horizontal rotation T structure. The monitoring device provided by the invention comprises outer sleeves of sand boxes, inner sleeves of the sand boxes, middle dry sand of the sand boxes and pressure boxes. The monitoring device is simple in structure, low in sand box cost and simple in manufacturing process. The monitoring device is simple in construction method, firm and stable in structure and easy to disassemble and clear after being used, and the cost of manpower and material resources can be saved. According to the invention, data can be read conveniently and reliably, thereby effectively ensuring the structure process safety.
Description
Technical field
The invention belongs to Bridge Rotation Construction Technique monitoring technology field, and in particular to complete for flat turn T structures top cradle construction
During unbalanced weight supervising device construction method.
Background technology
In the overall process of bridge upper T structure cradle construction, pier during T structures are different from general T structure, Superstructure Construction is turned
Belong to temporary consolidation between bottom and cushion cap, and in order to protect ball pivot to enable it in whole upper T structure construction period uniform-compression, T
Structure gravity's center control, the control of T structure bilaterals weight balancing are even more key.
At present the method for monitoring is mainly under ball pivot in lower rotary table, buries concrete in pier bottom and T structure root concrete
Concrete stress under strain-gauge test difference operating mode, is judged compared with calculated value.But due to concrete itself
In the season and time of discreteness, concrete creep contraction, ambient temperature and test, can all have influence on the accuracy of test.In order to
Accuracy is improved, measuring point must not be increased sometimes.So not only greatly increase monitoring expense and the workload of gathered data, it is crucial
It is to produce little effect sometimes, reduces can only the impact of concrete discrete type because increasing measuring point, but can not fundamentally avoids
The detection error that the season of concrete creep contraction, ambient temperature and test and time-bands are come.
In sum, traditional monitoring method inevitably monitor error because self-defect brings, so as to give swivel
The monitoring of construction of bridge T structure cradle construction unbalanced weight this important step brings probabilistic factor, has influence on spherical hinge structure body
System's safety.
The content of the invention
The present invention is to make up the weak point existing for above-mentioned prior art, there is provided a kind of for flat turn T structures top extension
The construction method of the unbalanced weight stress monitor device in basket construction overall process, reaches easy to operate, it is ensured that structure safety, accelerates
The purpose of construction speed.
Specific inventive technique scheme is as follows：
For the unbalanced weight supervising device in the cradle construction overall process of flat turn T structures top.The T structures top Hanging Basket includes
Cushion cap 10, concrete lower cushion cap 11 on slideway 7, spike 8, ball pivot 9, concrete.Cunning is provided with the top of concrete lower cushion cap 11
Road 7, at the top of the concrete lower cushion cap 11 of the inner side of slideway 7 ball pivot 9 is provided with.Spike 8 is evenly equipped with slideway 7.In spike 8 and
The top of ball pivot 9 is provided with cushion cap 10 on concrete.Additionally, including：Sandbox outer sleeve 1, dry sand 2, pressure cell 4, pressure cell are led
Line 5, sandbox inner sleeve 6.The sandbox outer sleeve 1 is open top, the cylinder of bottom sealing.In the bottom of sandbox outer sleeve 1
Sandbox valve 3 is provided with the wall of side.The cavity bottom of sandbox outer sleeve 1 is provided with one layer of dry sand 2.It is embedded with dry sand 2
Pressure cell 4.One end of pressure cell wire 5 is connected with pressure cell 4, and the other end Jing sandboxes valve 3 of pressure cell wire 5 is extended to
The outside of sandbox outer sleeve 1.At the top of the cavity of sandbox outer sleeve 1, the top of dry sand 2 be mounted with sandbox inner sleeve 6.It is described
Sandbox inner sleeve 6 is cylinder.
Using the construction of the unbalanced weight supervising device in the cradle construction overall process for flat turn T structures top of the present invention
Method, is carried out as follows：
Step 1：The top of slideway 7 between adjacent spike 8 arranges 2 sandbox outer sleeves 1.Each sandbox outer sleeve 1
Bottom coincide with the centrage of slideway 7.
Step 2：The tiling 1cm thick dry sand in each sandbox outer sleeve 1, after the dry sand laid is flattened, in Qi Ding
Place 1 pressure cell 4 in the center in face.Pressure cell 4 it is face-up, bottom surface down, and will keep the level of pressure cell 4.Pass through
Pressure cell wire 5 will be drawn out to industrial computer at the signal Jing sandboxes valve 3 of pressure cell 4.
Step 3：Then pressure cell 4 continues to spread dry sand above so that the thickness of dry sand 2 is pressed between 20~25cm
Pre- constant load implements precompressed to dry sand, puts sandbox inner sleeve 6, it is ensured that the top surface of sandbox inner sleeve 6 is in same level.In sand
Case inner sleeve 6 and the top formwork of spike 8, pouring cushion cap carries out subsequent construction, i.e., propped up jointly by sandbox inner sleeve 6 and spike 8
Cushion cap 10 on support concrete.
Step 4：Outside payload values being subject to due to the top surface of sandbox inner sleeve 6, being applied by cushion cap on concrete 10 and sandbox
The numerical value of the pressure cell 4 imbedded in the inside dry sand 2 of sleeve 1 is mutually corresponded to.Therefore the Superstructure Construction after step 3 is completed
Each stage, the data of pressure cell 4 are read by data collecting instrument, so as to analyze, each sandbox component A is actual to be shared
Load, and then judge whether T structures two ends balance：
If T structures two ends balance, in the construction of next sections, continuation is constructed by the concrete square amount of this sections.
If T structures two ends are uneven, in the construction of next sections, adjust concrete square amount, constructed, so as to ensure
Process safety during T structure cradle constructions.
Step 5：After the Superstructure Construction described in step 4 is finished, sandbox valve 3 is opened, allow sand from flowing out, it is natural
Unloading.If can not unload naturally, the dry sand being compacted in sandbox outer sleeve 1 is removed with instrument, treat the top surface of sandbox inner sleeve 6 and coagulation
After the top rotary table of cushion cap 10 is disengaged on soil, sandbox outer sleeve 1, sandbox inner sleeve 6 are removed from slideway 7.
Beneficial technique effect：
The present invention is with low cost, makes relatively simple, can live processing and fabricating.Sand bedding course is through screening, precompressed in sandbox
Afterwards, preferably, settling amount is minimum for sand self compacting ability, and spike is smoothly supported in down turn during sandbox can meet Superstructure Construction
On disk, the needs stable so as to ensure overall structure.
Weight balancing during pre-buried pressure cell data are to analyze T structure cradle constructions in by reading sandbox, is prevented effectively from
The discreteness of concrete itself, concrete creep shrink, the season and time of ambient temperature and test be to data analytic band
Puzzlement, easy to operate, data are guaranteed.Before turning after the completion of Superstructure Construction, sandbox unloading is very convenient.
Description of the drawings
Fig. 1 is the schematic perspective view of the flask device for bridge horizontal construction of the present invention.
Fig. 2 is the schematic perspective view of single sandbox component.
Fig. 3 is the longitudinal sectional view of a-quadrant in Fig. 2.
Fig. 4 is the simple view of the rotational support system using the support meanss for bridge horizontal construction of the present invention.
Serial number in figure：1 sandbox outer sleeve, 2 dry sands, 3 sandbox valves, 4 pressure cells, 5 pressure cell wires, 6
Cushion cap, 11 concrete lower cushion caps on sandbox inner sleeve, 7 slideways, 8 spikes, 9 ball pivots, 10 concrete.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described in more detail：
Referring to Fig. 4, for the unbalanced weight supervising device in the cradle construction overall process of flat turn T structures top.
The T structures top Hanging Basket includes cushion cap 10, concrete lower cushion cap 11 on slideway 7, spike 8, ball pivot 9, concrete.
The top of concrete lower cushion cap 11 is provided with slideway 7, and at the top of the concrete lower cushion cap 11 of the inner side of slideway 7 ball pivot 9 is provided with.Sliding
Spike 8 is evenly equipped with road 7.Cushion cap 10 on concrete are provided with the top of spike 8 and ball pivot 9, as shown in Figure 1 and Figure 4.Including sand
Case outer sleeve 1, dry sand 2, pressure cell 4, pressure cell wire 5, sandbox inner sleeve 6.
Referring to Fig. 2 and Fig. 3, the sandbox outer sleeve 1 is open top, the cylinder of bottom sealing.
Referring to Fig. 2 and Fig. 3, sandbox valve 3 is provided with the bottom sidewall of sandbox outer sleeve 1.
Referring to Fig. 2 and Fig. 3, the cavity bottom of sandbox outer sleeve 1 is provided with one layer of dry sand 2.
Referring to Fig. 2 and Fig. 3, in dry sand 2 pressure cell 4 is embedded with.
Referring to Fig. 2 and Fig. 3, one end of pressure cell wire 5 is connected with pressure cell 4, the other end Jing sand of pressure cell wire 5
Case valve 3 extends to the outside of sandbox outer sleeve 1.
Referring to Fig. 2 and Fig. 3, at the top of the cavity of sandbox outer sleeve 1, the top of dry sand 2 be mounted with sandbox inner sleeve 6.
The sandbox inner sleeve 6 is cylinder.
Referring to the mutual level in bottom surface of Fig. 2 and Fig. 3, pressure cell 4 and sandbox outer sleeve 1.
Furtherly, the spacing between the bottom surface of pressure cell 4 and the cavity bottom surface of sandbox outer sleeve 1 is in 0.5cm to 2.0cm
Between.
Furtherly, the top surface of dry sand 2 is horizontal plane.The thickness of dry sand 2 is between 20~25cm.
Furtherly, the model string formula pressure cell of pressure cell 4, is responsible for detection pressure signal.
Furtherly, the other end of pressure cell wire 5 is connected with data collecting instrument.
Referring to Fig. 1 and 4, furtherly, one group of sandbox outer sleeve 1, dry sand 2, pressure cell 4, pressure cell wire 5, sand are remembered
Case inner sleeve 6 is a sandbox component A.Sandbox component A is disposed with slideway 7 between two adjacent spikes 8.
Referring to Fig. 1 and 4, furtherly, 2 sandbox component A are evenly equipped with the slideway 7 between two adjacent spikes 8.
The sandbox component A coincides with the centrage of slideway 7.
The cushion cap 10 on the top of sandbox component A, the top formwork of spike 8, casting concrete.
Referring to Fig. 2,3 and 4, furtherly, using in the cradle construction overall process for flat turn T structures top of the present invention
The construction method of unbalanced weight stress monitor device, is carried out as follows：
Step 1：The top of slideway 7 between adjacent spike 8 arranges 2 sandbox outer sleeves 1.Each sandbox outer sleeve 1
Bottom coincide with the centrage of slideway 7.
Step 2：The tiling 1cm thick dry sand in each sandbox outer sleeve 1, after the dry sand laid is flattened, in Qi Ding
Place 1 pressure cell 4 in the center in face.Pressure cell 4 it is face-up, bottom surface down, and will keep the level of pressure cell 4.Pass through
Pressure cell wire 5 will be drawn out to industrial computer at the signal Jing sandboxes valve 3 of pressure cell 4.
Step 3：Then pressure cell 4 continues to spread dry sand above so that the thickness of dry sand 2 is put between 20~25cm
Sandbox inner sleeve 6, it is ensured that the top surface of sandbox inner sleeve 6 is in same level.In sandbox inner sleeve 6 and the top formwork of spike 8, pour
Building cushion cap carries out subsequent construction, i.e., support cushion cap 10 on concrete jointly by sandbox inner sleeve 6 and spike 8.
Step 4：Outside payload values being subject to due to the top surface of sandbox inner sleeve 6, being applied by cushion cap on concrete 10 and sandbox
The numerical value of the pressure cell 4 imbedded in the inside dry sand 2 of sleeve 1 is mutually corresponded to.Therefore the Superstructure Construction after step 3 is completed
Each stage, by industrial computer read pressure cell 4 data, so as to analyze the actual loads shared of each sandbox component A,
And then judge whether T structures two ends balance：
If T structures two ends balance, in the construction of next sections, continuation is constructed by the concrete square amount of this sections.
If T structures two ends are uneven, in the construction of next sections, adjust concrete square amount, constructed, so as to ensure
Process safety during T structure cradle constructions.
Step 5：After the Superstructure Construction described in step 4 is finished, sandbox valve 3 is opened, allow sand from flowing out, it is natural
Unloading.If can not unload naturally, the dry sand being compacted in sandbox outer sleeve 1 is removed with instrument, treat the top surface of sandbox inner sleeve 6 and coagulation
After the top rotary table of cushion cap 10 is disengaged on soil, sandbox outer sleeve 1, sandbox inner sleeve 6 are removed from slideway 7.
Furtherly, when prepared by the sand of dry sand 2 will through drying, with aperture be not more than the screening of 0.5mm carefully choosing and
Into ensureing consolidation effect.
Dry sand 2 needs to carry out the compaction test of sand in laboratory before loading, and the load-sedimentation for obtaining the sand is bent
Line, selects suitable prefabricating load, reaches preferable pressure-bearing effect.Jing tests determine the lotus applied in the top surface of sandbox inner sleeve 6
Carry the corresponding relation away from bottom surface various location numerical value with the pressure cell 4 imbedded in dry sand 2 internally.
Can be loaded after gross weight and the precompressed of each sandbox sand by control when loading dry sand 2 in sandbox outer sleeve 1
Height be controlled by, it is consistent with sand degree of compaction during laboratory test to guarantee to be reached during precompressed, make test value with
The load that actual sandbox top surface undertakes has good corresponding relation.
Claims (9)
1. the construction method of the unbalanced weight supervising device being used in the cradle construction overall process of flat turn T structures top, it is characterised in that：
The T structures top Hanging Basket includes slideway（7）, spike（8）, ball pivot（9）, cushion cap on concrete（10）, concrete lower cushion cap（11）；
In concrete lower cushion cap（11）Top be provided with slideway（7）, in slideway（7）The concrete lower cushion cap of inner side（11）Top be provided with
Ball pivot（9）；In slideway（7）On be evenly equipped with spike（8）；In spike（8）And ball pivot（9）Top be provided with cushion cap on concrete
（10）；Additionally, being provided with sandbox outer sleeve（1）, dry sand（2）, pressure cell（4）, pressure cell wire（5）, sandbox inner sleeve（6）；
The sandbox outer sleeve（1）For the cylinder that open top, bottom are sealed；In sandbox outer sleeve（1）Bottom sidewall on be provided with sand
Case valve（3）；In sandbox outer sleeve（1）Cavity bottom be provided with one layer of dry sand（2）；In dry sand（2）Inside it is embedded with pressure
Box（4）；Pressure cell wire（5）One end and pressure cell（4）It is connected, pressure cell wire（5）Other end Jing sandbox valves（3）
Extend to sandbox outer sleeve（1）Outside；In sandbox outer sleeve（1）Cavity top, dry sand（2）Top be mounted with sandbox
Inner sleeve（6）；The sandbox inner sleeve（6）For cylinder；Carry out as follows：
Step 1：In adjacent spike（8）Between slideway（7）Top arranges 2 sandbox outer sleeves（1）；Each sandbox outer sleeve
（1）Bottom and slideway（7）Centrage coincide；
Step 2：In each sandbox outer sleeve（1）Interior tiling 1cm thick dry sand, after the dry sand laid is flattened, in its top surface
Center place 1 pressure cell（4）；Pressure cell（4）It is face-up, bottom surface down, and will keep pressure cell（4）Level；
By pressure cell wire（5）By pressure cell（4）Signal Jing sandbox valves（3）Place is drawn out to data collecting instrument；
Step 3：Then pressure cell（4）Continue above to spread dry sand so that dry sand（2）Thickness between 20 ~ 25cm, and by pre-
Constant load implements precompressed to dry sand, puts sandbox inner sleeve（6）, it is ensured that sandbox inner sleeve（6）Top surface is in same level；
Sandbox inner sleeve（6）And spike（8）Top formwork, pouring cushion cap carries out subsequent construction, i.e., by sandbox inner sleeve（6）And spike
（8）It is common to support cushion cap on concrete（10）；
Step 4：Due to sandbox inner sleeve（6）It is that top surface is subject to, by cushion cap on concrete（10）Outside the payload values and sandbox of applying
Sleeve（1）Internal dry sand（2）The pressure cell of middle embedment（4）Numerical value mutually correspond to；Therefore the top knot after step 3 is completed
In each stage of structure construction, pressure cell is read by data collecting instrument（4）Data, so as to analyze each sandbox component（A）It is real
The load that border is shared, and then judge whether T structures two ends balance：
If T structures two ends balance, in the construction of next sections, continuation is applied by the concrete square amount of original design
Work；
If T structures two ends are uneven, in the construction of next sections, original design concrete square amount is adjusted, from
And ensure the process safety during T structure cradle constructions；
Step 5：After the Superstructure Construction described in step 4 is finished, sandbox valve is opened（3）, allow sand from flowing out, unload naturally
Carry；If can not unload naturally, with instrument sandbox outer sleeve is removed（1）The dry sand of middle compacting, treats sandbox inner sleeve（6）Top surface with it is mixed
Solidifying native upper cushion cap（10）Top rotary table disengage after, by sandbox outer sleeve（1）, sandbox inner sleeve（6）From slideway（7）Upper removal.
2. unbalanced weight supervising device in the cradle construction overall process for flat turn T structures top according to claim 1
Construction method, it is characterised in that：Dry sand（2）Sand will be through drying when preparing, the screening for being not more than 0.5mm with aperture is thin
Choosing forms to ensure consolidation effect；Dry sand（2）The compaction test that sand is carried out in laboratory is needed before loading, the sand is obtained
Load-Deflection curve, select suitable prefabricating load, reach preferable pressure-bearing effect；Jing tests are determined in sandbox inner sleeve
（6）The load that top surface applies and dry sand internally（2）The pressure cell of middle embedment（4）Away from the correspondence of bottom surface various location numerical value
Relation；Sandbox outer sleeve（1）Interior loading dry sand（2）When, loaded after the gross weight of each sandbox sand and precompressed by control
Height be controlled by, it is consistent with sand degree of compaction during laboratory test to guarantee to be reached during precompressed, make test value with
The load that actual sandbox top surface undertakes has good corresponding relation.
3. unbalanced weight supervising device in the cradle construction overall process for flat turn T structures top according to claim 1
Construction method, it is characterised in that：Pressure cell（4）With sandbox outer sleeve（1）The mutual level in bottom surface.
4. unbalanced weight supervising device in the cradle construction overall process for flat turn T structures top according to claim 3
Construction method, it is characterised in that：Pressure cell（4）Bottom surface and sandbox outer sleeve（1）Cavity bottom surface between spacing in 0.5cm
To between 2.0cm.
5. unbalanced weight supervising device in the cradle construction overall process for flat turn T structures top according to claim 1
Construction method, it is characterised in that：Dry sand（2）Top surface be horizontal plane；Dry sand（2）Thickness be 20 ~ 25cm between.
6. unbalanced weight supervising device in the cradle construction overall process for flat turn T structures top according to claim 1
Construction method, it is characterised in that：Pressure cell（4）Model string formula pressure cell, be responsible for detection pressure signal.
7. unbalanced weight supervising device in the cradle construction overall process for flat turn T structures top according to claim 1
Construction method, it is characterised in that：Pressure cell wire（5）The other end be connected with data collecting instrument.
8. monitor for the unbalanced weight in the cradle construction overall process of flat turn T structures top according to claim 1 to 7 is arbitrary described
The construction method of device, it is characterised in that：
Remember one group of sandbox outer sleeve（1）, dry sand（2）, pressure cell（4）, pressure cell wire（5）, sandbox inner sleeve（6）For one
Sandbox component（A）；In two adjacent spikes（8）Between slideway（7）On be disposed with sandbox component（A）.
9. unbalanced weight supervising device in the cradle construction overall process for flat turn T structures top according to claim 8
Construction method, it is characterised in that：In two adjacent spikes（8）Between slideway（7）On be evenly equipped with 2 sandbox components（A）；Institute
State sandbox component（A）With slideway（7）Centrage coincide；In sandbox component（A）Top, spike（8）Top formwork, pour
Build cushion cap on concrete（10）.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106065575A (en) * | 2016-08-16 | 2016-11-02 | 武汉海润工程设备有限公司 | A kind of Bridge Rotation Construction Technique overturn-preventing system |
| CN106192766B (en) * | 2016-08-30 | 2018-08-03 | 洛阳双瑞特种装备有限公司 | A kind of girder steel pier coping portion rotary body device |
| CN106223210B (en) * | 2016-08-31 | 2019-02-15 | 李连秀 | A kind of automation rotation swivel construction method and system closing up function with observing and controlling and certainly |
| CN106368128B (en) * | 2016-11-22 | 2018-01-19 | 中铁十八局集团第二工程有限公司 | For supporting the sandbox of disk on ton swivel arch bridge skewback to combine full sand bed die construction method |
| CN109112967B (en) * | 2018-09-12 | 2023-07-25 | 长安大学 | Tower beam thrust connection device and quick construction method for self-anchored suspension bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS56135605A (en) * | 1980-03-25 | 1981-10-23 | Binan Kaihatsu Kk | Installing of bridge beam |
| JPS58120905A (en) * | 1982-01-13 | 1983-07-19 | 日本鉄道建設公団 | Method and apparatus for constructing rotary type bridge |
| US6832459B2 (en) * | 2002-01-18 | 2004-12-21 | Matthew Russell | Methods and apparatus for forming and placing generally horizontal structures |
| CN104358216B (en) * | 2014-10-24 | 2016-06-29 | 中铁大桥局集团第六工程有限公司 | A kind of horizontal swing system for bridge construction |
| CN204370317U (en) * | 2014-11-10 | 2015-06-03 | 中铁六局集团路桥建设有限公司 | For pouring into the construction equipment of sand proportioning and closed water proof in the interim sandbox of swivel bridges |
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