CN108930228A - The construction method of bent cap hoop bracket overall pulling down - Google Patents
The construction method of bent cap hoop bracket overall pulling down Download PDFInfo
- Publication number
- CN108930228A CN108930228A CN201810886407.7A CN201810886407A CN108930228A CN 108930228 A CN108930228 A CN 108930228A CN 201810886407 A CN201810886407 A CN 201810886407A CN 108930228 A CN108930228 A CN 108930228A
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- China
- Prior art keywords
- bent cap
- bracket
- wirerope
- pressure
- bearing device
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of construction methods of bent cap hoop bracket overall pulling down, comprising the following steps: S1: installation pressure-bearing device；S2: installation wirerope；S3: first time stress system conversion；The conversion of S4: second stress system；S5: bracket is hung down and drops to ground.The construction method of bent cap hoop bracket overall pulling down of the invention, it is converted by carrying out stress system twice, decomposition dismounting is carried out so that hoop bracket integrally be hung down and be down to ground, to reduce a large amount of high altitude operation and hoisting and hanging operation, the dismounting efficiency for improving bent cap hoop bracket, has ensured the safety of construction personnel.
Description
Technical field
The present invention relates to bridge construction technology fields, and in particular to a kind of construction party of bent cap hoop bracket overall pulling down
Method.
Background technique
As the construction technology of bridge construction is continuously improved, Coping Construction falsework is various informative, wherein Hold Hoop method branch
The relatively traditional full framing of frame rides over pier stud top using the bridge pier poured is outstanding, has power transmission simple, it is heavy that there is no brackets
Drop, without carrying out basement process, nor affects on current advantage；It is opposite to cross the suspended scaffolds such as fashioned iron, utilize anchor ear and pier
For frictional force as structure dead load and construction loads bearing capacity, having will not influence pillarwork between column, will not be to pier stud appearance
The advantages that impacting more and more is used in bridge construction.
But there is also deficiencies for Hold Hoop method bracket, belong to suspended scaffold, fulcrum is located at bridge pier column top, supporting structure
Girder across footpath be equal to the across footpath of bent cap structure, secondary beam across footpath is equal to pier stud diameter, opposite other types strutting system it is similar
The big many of component across footpath.In order to ensure bracket meets the requirement of construction safety and service performance, bracket mostly uses bending resistant section
The big truss of modulus or relatively large fashioned iron, support element self weight is also larger, and bent cap structure pour after press bracket, remove space-time
Between it is limited, traditionally construct bent cap Hold Hoop method bracket, a large amount of high altitude operation and hoisting and hanging operation, Ren Yuanchi will be generated
The continuous high-risk operations time is long, long in time limit, and it is big that construction safety controls difficulty.
Summary of the invention
In order to overcome the above technical problems, the present invention provides a kind of construction method of bent cap hoop bracket overall pulling down,
Reduce worker the high altitude operation time and a large amount of hoisting and hanging operation, improve the dismounting efficiency of bent cap hoop bracket, protect
The safety of construction personnel is hindered.
To achieve the above object, the construction method of a kind of bent cap hoop bracket overall pulling down provided by the present invention, it is special
Sign is, comprising the following steps:
S1: the pressure-bearing device installation pressure-bearing device: is placed on 1/2 cantilever position of bent cap with crane；
S2: installation wirerope: one end of wirerope is fixed on to the upper end of the bracket, the other end of wirerope is fixed on
On the pressure-bearing device, the pressure of wirerope is passed into bent cap by the pressure-bearing device, and connect in wirerope and bent cap
The property at parts of edges and corners of touching is protected with gasket；
S3: the conversion of first time stress system: first pine removes holder jacking, then pine removes anchor ear bolt, and with wirerope by anchor ear
It is fixed below the bracket, after anchor ear bolt whole pine removes, the gravity of entire bracket is born by the pressure-bearing device completely,
Complete the conversion of first time stress system；
The conversion of S4: second stress system: the hook of crane is connect with the end of the bracket with wirerope, is utilized
Crane lifting wirerope makes bracket rise about 2cm, and the stress of pressure-bearing device is made to be completely transferred to crane, complete second by
Power system transform；
S5: bracket is hung down and drops to ground: the wirerope on pressure-bearing device is released, then utilize crane by hoop bracket
Whole hang down drops to ground.
Further, in the step S1, fillet is bundled into the cuboid flitch heap of 2m*1m*1m with wirerope,
Using the cuboid flitch heap as the load carrier.
Further, in the step S1, the quantity of the load carrier is two, and two load carriers are symmetrical
Set on 1/2 cantilever position of the bent cap.
Further, in the step S2, the gasket is rubber block.
Further, specific steps of the pine except holder jacking in the step S3 are as follows: the spinner of runing rest jacking, until
Until rack template is detached from bent cap 10cm.
A kind of construction method of bent cap hoop bracket overall pulling down provided by the present invention compared with the prior art, have with
Lower technical effect:
The present invention by carry out twice stress system convert, thus by hoop bracket integrally hang down be down to ground carry out decompose tear open
It removes, to reduce a large amount of high altitude operation and hoisting and hanging operation, improves the dismounting efficiency of bent cap hoop bracket, ensure
The safety of construction personnel.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of bent cap hoop bracket of the embodiment of the present invention.
Wherein, 1, pressure-bearing device, 2, bent cap, 3, wirerope, 4, bracket, 5, holder jacking, 6, anchor ear, 7, pier stud.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
A kind of construction method of bent cap hoop bracket overall pulling down of the present invention, comprising the following steps:
S1: the pressure-bearing device 1 installation pressure-bearing device 1: is placed on the bent cap 2 with crane (not shown)
1/2 cantilever position；
S2: one end of wirerope 3: being fixed on the upper end of the bracket 4 by installation wirerope 3, and the other end of wirerope 3 is solid
It is scheduled on the pressure-bearing device 1, the pressure of wirerope 3 is passed into bent cap 2 by the pressure-bearing device 1, and in wirerope 3
The property at parts of edges and corners contacted with bent cap 2 is protected with gasket (not shown)；
S3: the conversion of first time stress system: first pine removes holder jacking 5, then pine removes anchor ear bolt, and will be embraced with wirerope 3
Hoop 6 is fixed on the lower section of the bracket 4, and after anchor ear bolt whole pine removes, the gravity of entire bracket 4 is filled by the pressure-bearing completely
1 receiving is set, the conversion of first time stress system is completed；
S4: second stress system conversion: by the end steel of the hook and the bracket 4 of crane (not shown)
Cord connection makes bracket 4 rise about 2cm, has been completely transferred to the stress of pressure-bearing device 1 using crane lifting wirerope 3
Heavy-duty machine completes second of stress system conversion；
S5: bracket 4 being hung down and drops to ground: the wirerope 3 on pressure-bearing device 1 is released, and then utilizes crane by anchor ear
Whole hang down of bracket 4 drops to ground.
The present invention is converted by carrying out stress system twice, is down to ground and carries out decomposition dismounting whole hang down of hoop bracket 4,
To reduce a large amount of high altitude operation and hoisting and hanging operation, the dismounting efficiency of bent cap hoop bracket 4 is improved, has ensured and has applied
The safety of worker person.
In embodiments of the present invention, it is preferable that in the step S1, with wirerope by the flitch of the 10cm*10cm of 2m long
Item is bundled into the cuboid flitch heap of 2m*1m*1m, using the cuboid flitch heap as the load carrier 1.
Preferably, in the step S1, the quantity of the load carrier 1 is two, and two load carriers 1 are symmetrical
Set on 1/2 cantilever position of the bent cap 2.
Preferably, in the step S2, the gasket is rubber block.
Preferably, specific steps of the pine except holder jacking 5 in the step S3 are as follows: the spinner of runing rest jacking 5, until
Until rack template is detached from 2 top 10cm of bent cap.
To sum up, a kind of construction method of bent cap hoop bracket overall pulling down provided by the present invention, the present invention pass through progress
Stress system is converted twice, decomposition dismounting is carried out so that 4 entirety of hoop bracket be hung down and be down to ground, to reduce a large amount of height
Idle job and hoisting and hanging operation improve the dismounting efficiency of bent cap hoop bracket 4, have ensured the safety of construction personnel.
The above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement is also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of construction method of bent cap hoop bracket overall pulling down, which comprises the following steps:
S1: the pressure-bearing device installation pressure-bearing device: is placed on 1/2 cantilever position of bent cap with crane；
S2: one end of wirerope: being fixed on the upper end of the bracket by installation wirerope, and the other end of wirerope is fixed on described
On pressure-bearing device, the pressure of wirerope is passed into bent cap by the pressure-bearing device, and contacted in wirerope with bent cap
Property at parts of edges and corners is protected with gasket；
S3: the conversion of first time stress system: first pine removes holder jacking, then pine removes anchor ear bolt, and is fixed anchor ear with wirerope
Below the bracket, after anchor ear bolt whole pine removes, the gravity of entire bracket is born by the pressure-bearing device completely, is completed
The conversion of first time stress system；
The conversion of S4: second stress system: the hook of crane is connect with the end of the bracket with wirerope, lifting is utilized
Machine lifting wirerope makes bracket rise about 2cm, so that the stress of pressure-bearing device is completely transferred to crane, completes second of beaer
System's conversion；
S5: bracket is hung down and drops to ground: the wirerope on pressure-bearing device is released, it is then using crane that hoop bracket is whole
It hangs down and drops to ground.
2. the construction method of bent cap hoop bracket overall pulling down as described in claim 1, which is characterized in that the step S1
In, fillet is bundled into the cuboid flitch heap of 2m*1m*1m with wirerope, the cuboid flitch heap is held as described in
Refitting is set.
3. the construction method of bent cap hoop bracket overall pulling down as described in claim 1, which is characterized in that the step S1
In, the quantity of the load carrier is two, and two load carriers are symmetrically set in 1/2 cantilever position of the bent cap.
4. the construction method of bent cap hoop bracket overall pulling down as described in claim 1, which is characterized in that the step S2
In, the gasket is rubber block.
5. the construction method of bent cap hoop bracket overall pulling down as described in claim 1, which is characterized in that in the step S3
Pine removes the specific steps of holder jacking are as follows: the spinner of runing rest jacking, until rack template is detached from bent cap 10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810886407.7A CN108930228A (en) | 2018-08-06 | 2018-08-06 | The construction method of bent cap hoop bracket overall pulling down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810886407.7A CN108930228A (en) | 2018-08-06 | 2018-08-06 | The construction method of bent cap hoop bracket overall pulling down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108930228A true CN108930228A (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810886407.7A Pending CN108930228A (en) | 2018-08-06 | 2018-08-06 | The construction method of bent cap hoop bracket overall pulling down |
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| CN (1) | CN108930228A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110438911A (en) * | 2019-07-22 | 2019-11-12 | 安徽省交通建设股份有限公司 | The construction method of the ecological dismounting structure in Urban Bridge part |
| CN111620223A (en) * | 2020-05-25 | 2020-09-04 | 中铁建工集团有限公司 | Construction method for lifting net rack through secondary stress conversion of support |
| CN111764261A (en) * | 2020-06-04 | 2020-10-13 | 上海建工四建集团有限公司 | Structure and method for converting stress state of large cantilever lifting basket type prefabricated bent cap |
| CN112144417A (en) * | 2020-10-12 | 2020-12-29 | 中建八局第一建设有限公司 | Construction device and construction method for hollow coping of special-shaped pier gem |
| CN113481869A (en) * | 2021-08-06 | 2021-10-08 | 中交路桥华东工程有限公司 | Method for assembling and disassembling capping beam platform |
| CN114134829A (en) * | 2021-12-29 | 2022-03-04 | 杭州萧山交通建设管理有限公司 | Prestressed hollow slab beam bridge dismantling system and construction method |
| CN114606870A (en) * | 2022-04-02 | 2022-06-10 | 中铁六局集团有限公司 | Integral dismantling method for hoop-method bent cap supporting system |
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| CN106012852A (en) * | 2016-06-15 | 2016-10-12 | 江苏燕宁建设工程有限公司 | Construction method for overall support removal |
| CN205775859U (en) * | 2016-05-20 | 2016-12-07 | 中交第一航务工程局有限公司 | Device removed by bridge coping bed die |
| CN207484292U (en) * | 2017-08-11 | 2018-06-12 | 中交四公局第三工程有限公司 | Bent cap bed die removes device |
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| CN205775859U (en) * | 2016-05-20 | 2016-12-07 | 中交第一航务工程局有限公司 | Device removed by bridge coping bed die |
| CN106012852A (en) * | 2016-06-15 | 2016-10-12 | 江苏燕宁建设工程有限公司 | Construction method for overall support removal |
| CN207484292U (en) * | 2017-08-11 | 2018-06-12 | 中交四公局第三工程有限公司 | Bent cap bed die removes device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110438911A (en) * | 2019-07-22 | 2019-11-12 | 安徽省交通建设股份有限公司 | The construction method of the ecological dismounting structure in Urban Bridge part |
| CN111620223A (en) * | 2020-05-25 | 2020-09-04 | 中铁建工集团有限公司 | Construction method for lifting net rack through secondary stress conversion of support |
| CN111764261A (en) * | 2020-06-04 | 2020-10-13 | 上海建工四建集团有限公司 | Structure and method for converting stress state of large cantilever lifting basket type prefabricated bent cap |
| CN112144417A (en) * | 2020-10-12 | 2020-12-29 | 中建八局第一建设有限公司 | Construction device and construction method for hollow coping of special-shaped pier gem |
| CN113481869A (en) * | 2021-08-06 | 2021-10-08 | 中交路桥华东工程有限公司 | Method for assembling and disassembling capping beam platform |
| CN114134829A (en) * | 2021-12-29 | 2022-03-04 | 杭州萧山交通建设管理有限公司 | Prestressed hollow slab beam bridge dismantling system and construction method |
| CN114134829B (en) * | 2021-12-29 | 2023-08-08 | 杭州萧山交通建设管理有限公司 | Prestressed hollow slab girder bridge dismantling system and construction method |
| CN114606870A (en) * | 2022-04-02 | 2022-06-10 | 中铁六局集团有限公司 | Integral dismantling method for hoop-method bent cap supporting system |
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Application publication date: 20181204 |
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| RJ01 | Rejection of invention patent application after publication |