CN110344322A - A kind of temporary support and the method using support progress bridge conversion - Google Patents
A kind of temporary support and the method using support progress bridge conversion Download PDFInfo
- Publication number
- CN110344322A CN110344322A CN201910733605.4A CN201910733605A CN110344322A CN 110344322 A CN110344322 A CN 110344322A CN 201910733605 A CN201910733605 A CN 201910733605A CN 110344322 A CN110344322 A CN 110344322A
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- China
- Prior art keywords
- height
- temporary support
- air bag
- support
- supporting pad
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 title abstract description 7
- 229920000728 polyester Polymers 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 3
- 238000010276 construction Methods 0.000 claims description 13
- 238000011065 in-situ storage Methods 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims description 6
- 239000002775 capsule Substances 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 229920002457 flexible plastic Polymers 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000004570 mortar (masonry) Substances 0.000 description 6
- 239000004576 sand Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/048—Bearings being adjustable once installed; Bearings used in incremental launching
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of temporary support and the methods for carrying out bridge conversion using the support, temporary support, support body including being placed on bent cap top surface, support body includes supporting pad and around solid multiple mutually indepedent, air bags with air inlet in supporting pad surrounding, and each air bag is full of the height that the height after gas is above supporting pad.The invention has the advantages that structure is simple, ingenious, after the air emptying in each air bag, the weight of girder is fallen on naturally on permanent support, is realized the separation of girder and temporary support, is manually removed temporary support, highly-safe, is removed simply, fast, time saving and energy saving；Four air bags are mutually indepedent, can inflate or be vented respectively adjustment height, girder height, Slope angle adjustment may be implemented, meet design requirement；Air bag is made of lightweight polyester flexible plastics, have it is flexible well, avoid with girder hard contact, prevent girder from local damage occur because hardness is touched.
Description
Technical field
The present invention relates to field of bridge construction, more particularly, to one kind temporary support used in bridge construction process,
The invention further relates to a kind of methods for carrying out bridge conversion using the temporary support.
Background technique
In bridge construction process, to generally require to be arranged the needs of meeting construction technology and step (such as Program for structural Transformation)
Temporary support again removes temporary support after the completion of construction.Currently, facing in bridge construction frequently with sulphur-bonded mortar support and husky cylinder
When support, sulphur-bonded mortar temporary support is that heating wire is pre-filled in sulphur-bonded mortar, melts sulphur-bonded mortar by electric heating and tears open
Except temporary support, system transform is completed；This kind of support intensity is very high, but sulphur-bonded mortar prepares trouble, at high cost, is unable to adjust
Local support height, once heating wire is blown, sulphur-bonded mortar cuts just extremely difficult.Sand Bucket temporary support can pass through release
Bottom screw, which releases fine sand in bucket, to be had to achieve the purpose that dismounting temporary support and is easy to high-altitude carrying, facilitates operation and installation
The advantages that, but such as fine sand makes moist or meet water consolidation, it will there is plug-hole phenomenon, prevent fine sand is from flowing out, and then causes
Steel drum in Sand Bucket cannot continue to settle, and increase and remove difficulty.For this purpose, research and develop it is a kind of it is safe and reliable, easy to adjust, can be quick
Disassembly and temporary support at low cost are the targets that science of bridge building Shi Yizhi is pursued.
Summary of the invention
The temporary support that it is an object of that present invention to provide a kind of processing costs is low, reusable, dismounting is simple and convenient, this
Invention additionally provides the method for carrying out bridge conversion using the temporary support.
To achieve the above object, the present invention takes following technical proposals:
Temporary support of the present invention, the support body including being placed on bent cap top surface, the support body includes supporting pad
With around solid multiple mutually indepedent, air bags with air inlet in the supporting pad surrounding, each air bag is full of after gas
Height is above the height of supporting pad.
Each air bag of lightweight polyester flexible plastics by being made, and each air bag is full of the height and supporting pad after gas
Difference in heightΔHIt is 10 mm~15mm.
The supporting pad is laminated rubber bearing, and the air bag is linked together with supporting pad by hot melt.
The air bag is four.
Valve inside is provided at the air inlet of each air bag.
The present invention also provides a kind of methods of Program for structural Transformation in bridge construction process, are faced using of the present invention
When support, construction procedure includes:
The first step places temporary support in the pre-position of bent cap top surface, and inflation adjusts the height of each air bag respectively, makes each gas
Capsule height is consistent with supporting pad height；
Second step hangs precast main beam on temporary support, is inflated respectively to the air bag around supporting pad, makes prefabricated master
Beam is gradually lifted and is detached from supporting pad, and that completes precast main beam hangs operation；
Third step repeats the first step and second step, and that completes remaining precast main beam hangs operation；
4th step installs permanent support in bent cap top surface after the completion of precast main beam is all hung, then again precast main beam it
Between pour bridge Cast-in-Situ Segment formed continuous beam；
Air in each air bag of temporary support is emptied respectively after bridge Cast-in-Situ Segment load, makes precast main beam by the 5th step
Weight fallen on permanent support naturally, remove temporary support, complete Program for structural Transformation.
The invention has the advantages that structure is simple, ingenious, removes simple, quick and may be reused, save the cost, specifically
It is embodied in the following:
1), the present invention is had good by four common support girders of air bag, air bag by being made of lightweight polyester flexible plastics
Flexibility, avoid with girder hard contact, prevent girder from local damage occur because hardness is touched；
2), four air bags of supporting pad surrounding of the present invention are mutually indepedent, can inflate or be vented respectively adjustment height, may be implemented to lead
Depth of beam, Slope angle adjustment, meet design requirement；
3), when placing girder, when air bag leaks air or when other fortuitous events, supporting pad can be used for support girder, safety
Property it is high；
4), the present invention removes simple, and the height of supporting pad is lower than the height of permanent support, main after the air emptying in each air bag
The weight of beam is fallen on naturally on permanent support, is realized the separation of girder and temporary support, is manually removed temporary support, safety
Property it is high, remove it is simple, quick, it is time saving and energy saving.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the A-A of Fig. 1 to schematic cross-sectional view.
Fig. 3-5 is state diagram of the present invention in bridge conversion process.
Specific embodiment
As shown in Figure 1, 2, temporary support of the present invention, including support body, support body include supporting pad 2(branch
Stake pad 2 is laminated rubber bearing) He Raogu is in four of 2 surrounding of the supporting pad mutually indepedent, air bags 4 with air inlet 3, and four
Air bag 4 is the rectangular parallelepiped structure made of high-intensitive, lightweight polyester flexible plastics, and each air bag 4 is equal full of the height after gas
Higher than the height of supporting pad 2, each air bag 4 is full of height and the difference in height of supporting pad 2 after gasΔHIn the mm of 10 mm~15
In range, the difference in height of four air bags 4 and supporting pad 2ΔHIt is equal (certainly according to practice of construction demand, four air bags 4 and branch
The difference in height of stake pad 2ΔHCan also be not mutually equal), so that each air bag 4 is there is height adjustment space, it is every by individually adjusting
The height of a air bag 4 adjusts precast main beam height, gradient.
When practical manufacture, to prevent air bag 4 from exhaust situation occur due to by pressure, it is all provided at the air inlet 3 of each air bag 4
It is equipped with valve inside.When practical manufacture, air bag 4 is linked together with supporting pad 2 by hot melting way.
For the bearing capacity for guaranteeing temporary support, a length of mm of 150 mm~800, the width of supporting pad 2 are 150 mm~800
Mm, a height of mm of 40 mm~100；The width of each air bag 4 is the mm of 150 mm~800, a length of mm of 50 mm~100.For convenience
It removes, the height of supporting pad 2 is lower than the height of permanent support.
Below by taking the seat structure system transform of two precast main beams as an example, illustrates and carried out using temporary support of the present invention
The method of bridge conversion, construction procedure include:
The first step places temporary support in the pre-position of 1 top surface of bent cap, and inflation adjusts the height of each air bag 4 respectively, makes each
4 height of air bag is consistent with 2 height of supporting pad；
Second step hangs precast main beam 5 on temporary support, and support precast main beam 5(is certain jointly for supporting pad 2 and air bag 4,
Precast main beam can also be temporarily supported merely with supporting pad 2 when practice of construction)；Then according to bridge main body predetermined design position,
The air bag 4 of 2 surrounding of supporting pad is inflated respectively, be lifted precast main beam 5 gradually and is detached from supporting pad 2, is completed prefabricated
Girder 5 hangs operation；In to each 4 gas replenishment process of air bag, precast main beam can be realized by controlling the aeration quantity of each air bag 4
5 height, Slope angle adjustment；
Third step repeats the first step and second step, and that completes precast main beam 6 hangs operation, specific as shown in Figure 3；
4th step installs permanent support 7 in 1 top surface of bent cap, then pre- after the completion of precast main beam 5 and precast main beam 6 are hung
Bridge Cast-in-Situ Segment 8 is poured between girder 5 processed and precast main beam 6 forms continuous beam, it is specific as shown in Figure 4；
5th step, after 8 load of bridge Cast-in-Situ Segment, since the height of supporting pad 2 is lower than permanent 7 height of support, by temporary support
Each air bag 4 in air emptying after, the weight of precast main beam 5 and precast main beam 6 is fallen in naturally on permanent support 7, is removed
Temporary support completes Program for structural Transformation, specific as shown in Figure 5.
Claims (6)
1. a kind of temporary support, the support body including being placed on bent cap top surface, it is characterised in that: the support body includes branch
Stake pad and around solid multiple mutually indepedent, air bags with air inlet in the supporting pad surrounding, each air bag is full of gas
Height afterwards is above the height of supporting pad.
2. temporary support according to claim 1, it is characterised in that: each air bag is to be moulded by lightweight polyester flexible
Material is made, difference in height of each air bag full of height and supporting pad after gasΔHIt is the mm of 10 mm~15.
3. temporary support according to claim 2, it is characterised in that: the supporting pad is laminated rubber bearing, the gas
Capsule is linked together with supporting pad by hot melt.
4. temporary support according to claim 1, it is characterised in that: the air bag is four.
5. temporary support according to claim 1, it is characterised in that: be respectively provided at the air inlet of each air bag
There is valve inside.
6. a kind of method of Program for structural Transformation in bridge construction process, it is characterised in that: use and face as described in claim 1
When support, construction procedure includes:
The first step places temporary support in the pre-position of bent cap top surface, and inflation adjusts the height of each air bag respectively, makes each gas
Capsule height is consistent with supporting pad height；
Second step hangs precast main beam on temporary support, is inflated respectively to the air bag around supporting pad, makes prefabricated master
Beam is gradually lifted and is detached from supporting pad, and that completes precast main beam hangs operation；
Third step repeats the first step and second step, and that completes remaining precast main beam hangs operation；
4th step installs permanent support in bent cap top surface after the completion of precast main beam is all hung, then again precast main beam it
Between pour bridge Cast-in-Situ Segment formed continuous beam；
Air in each air bag of temporary support is emptied respectively after bridge Cast-in-Situ Segment load, makes precast main beam by the 5th step
Weight fallen on permanent support naturally, remove temporary support, complete Program for structural Transformation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910733605.4A CN110344322B (en) | 2019-08-09 | 2019-08-09 | Temporary support and method for converting bridge structural system by adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910733605.4A CN110344322B (en) | 2019-08-09 | 2019-08-09 | Temporary support and method for converting bridge structural system by adopting same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110344322A true CN110344322A (en) | 2019-10-18 |
| CN110344322B CN110344322B (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910733605.4A Active CN110344322B (en) | 2019-08-09 | 2019-08-09 | Temporary support and method for converting bridge structural system by adopting same |
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| Country | Link |
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| CN (1) | CN110344322B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356596A (en) * | 2021-04-07 | 2021-09-07 | 杭州闪易科技有限公司 | Closed space construction method based on flexible material and rigid support structure |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001262515A (en) * | 2000-03-23 | 2001-09-26 | Taisei Corp | Method for constructing temporary bearing |
| CN101942803A (en) * | 2010-07-09 | 2011-01-12 | 中冶建工有限公司 | Bridge construction method implemented by simply supporting, forming continuous beam and removing temporary medium steel support in sequence |
| CN102080356A (en) * | 2010-12-17 | 2011-06-01 | 中铁大桥局集团第四工程有限公司 | Box girder positioning temporary supporting seat and positioning construction method of box girder |
| CN102518046A (en) * | 2011-12-29 | 2012-06-27 | 广东冠粤路桥有限公司 | Method for eliminating secondary internal force of sinking of support saddle of continuous beam during cantilever construction |
| CN202482769U (en) * | 2011-12-29 | 2012-10-10 | 广东冠粤路桥有限公司 | Novel temporary support used in bridge construction |
| CN105133487A (en) * | 2015-10-08 | 2015-12-09 | 北京城建道桥建设集团有限公司 | Combined type bridge temporary support and construction method for rapidly building continuous beams by virtue of same |
| CN207259935U (en) * | 2017-07-28 | 2018-04-20 | 山西省交通科学研究院 | A kind of simple supported-to-continuous girder bridge built a bridge at once system |
| CN207846231U (en) * | 2018-01-11 | 2018-09-11 | 中铁十九局集团第七工程有限公司 | A kind of adjustable for height lip block |
| CN207878267U (en) * | 2018-01-06 | 2018-09-18 | 四川双建路桥机械有限责任公司 | A kind of temporary support device for bridge construction |
| CN210458925U (en) * | 2019-08-09 | 2020-05-05 | 河南省交通规划设计研究院股份有限公司 | Temporary support for bridge structural system conversion |
-
2019
- 2019-08-09 CN CN201910733605.4A patent/CN110344322B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001262515A (en) * | 2000-03-23 | 2001-09-26 | Taisei Corp | Method for constructing temporary bearing |
| CN101942803A (en) * | 2010-07-09 | 2011-01-12 | 中冶建工有限公司 | Bridge construction method implemented by simply supporting, forming continuous beam and removing temporary medium steel support in sequence |
| CN102080356A (en) * | 2010-12-17 | 2011-06-01 | 中铁大桥局集团第四工程有限公司 | Box girder positioning temporary supporting seat and positioning construction method of box girder |
| CN102518046A (en) * | 2011-12-29 | 2012-06-27 | 广东冠粤路桥有限公司 | Method for eliminating secondary internal force of sinking of support saddle of continuous beam during cantilever construction |
| CN202482769U (en) * | 2011-12-29 | 2012-10-10 | 广东冠粤路桥有限公司 | Novel temporary support used in bridge construction |
| CN105133487A (en) * | 2015-10-08 | 2015-12-09 | 北京城建道桥建设集团有限公司 | Combined type bridge temporary support and construction method for rapidly building continuous beams by virtue of same |
| CN207259935U (en) * | 2017-07-28 | 2018-04-20 | 山西省交通科学研究院 | A kind of simple supported-to-continuous girder bridge built a bridge at once system |
| CN207878267U (en) * | 2018-01-06 | 2018-09-18 | 四川双建路桥机械有限责任公司 | A kind of temporary support device for bridge construction |
| CN207846231U (en) * | 2018-01-11 | 2018-09-11 | 中铁十九局集团第七工程有限公司 | A kind of adjustable for height lip block |
| CN210458925U (en) * | 2019-08-09 | 2020-05-05 | 河南省交通规划设计研究院股份有限公司 | Temporary support for bridge structural system conversion |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356596A (en) * | 2021-04-07 | 2021-09-07 | 杭州闪易科技有限公司 | Closed space construction method based on flexible material and rigid support structure |
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| Publication number | Publication date |
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| CN110344322B (en) | 2024-02-06 |
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