CN106192771B - A kind of steel truss support and method for dismounting of pier cap beam construction - Google Patents
A kind of steel truss support and method for dismounting of pier cap beam construction Download PDFInfo
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- CN106192771B CN106192771B CN201610837349.XA CN201610837349A CN106192771B CN 106192771 B CN106192771 B CN 106192771B CN 201610837349 A CN201610837349 A CN 201610837349A CN 106192771 B CN106192771 B CN 106192771B
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- bridle iron
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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
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses the steel truss support method of pier cap beam construction, and rod iron is penetrated in the preformed hole that performance of concrete column confined top is formed；Bridle iron, the mounting platform elevation and subsidence regulating device on bridle iron are installed at rod iron both ends；Carrying steel girder platform is set in lifting platform regulating device；Cushion block, set shaped steel formwork are set on carrying steel girder platform, casting concrete then forms the concrete bent cap of bridge pier；During dismounting, lifting platform regulating device is first subjected to step-down operation to turn down height；Remove set shaped steel formwork；According to the reverse order of installation, remove successively.The method of the present invention, the activity time of pier cap beam construction can be shortened, it is ensured that the quick formation of the steel truss support of pier cap beam construction, improves the working security of support system, realize the stabilization of pier cap beam template, ensure the closely knit quality technology effect of bent cap concrete placings.During dismounting, removed according to the reverse order of installation, the disassembling section time can be greatly shortened, improve the security of disassembling section.
Description
Technical field
The present invention relates to the steel truss support and method for dismounting of a kind of construction of pier cap beam, more particularly to a kind of pier cap beam
The steel truss support and method for dismounting of construction.
Background technology
The steel truss support and method for dismounting of traditional pier cap beam construction, are typically after performance of concrete column confined is formed, in pier
The hole reserved on column penetrates shaped steel or rod iron and forms steel truss support point, is directly spread after transverse lap I-steel on its supporting point
Small steel plate installation jack, be symmetrically installed contact steel truss formation Coping Construction platform；In construction, the rod iron of installation occurs
Rotation, is not easy to keep balance, welding connection need to be carried out to the contact portion of contact I-steel and small steel plate, even to I-steel
Welding is carried out in the lump with rod iron to be connected；When unbalance change occurs for the steel truss construction platform load of formation, steel truss is supporting
The unsafe condition of longitudinal and transverse two directions offset occurs on point rod iron；It is unfavorable for the assembling and disassembling of steel truss, and makees in high-altitude
The activity time of industry is longer, and work efficiency is low, is unfavorable in the Pier Formwork installation of pier cap beam and concrete formation pouring construction；
This be mainly pier cap beam construction steel truss support construction technology and method need to improve.Using improved pier cap beam
The steel truss support construction technology and method of construction, can shorten the activity time of pier cap beam construction, it is ensured that pier cap beam is constructed
Steel truss support quick formation, improve the working security of support system, realize the stabilization of pier cap beam template, ensure lid
The closely knit quality technology effect of beam concrete placings.
The content of the invention
For above-mentioned deficiency existing in the prior art, the present invention provides a kind of steel truss support of pier cap beam construction
Construction technology, it is easily designed and construction pier cap beam construction steel truss support construction technology improved method.
In order to solve the above-mentioned technical problem, present invention employs following technical solution；A kind of steel truss of pier cap beam construction
The construction method of frame support, includes the following steps：
（1）According to technological requirement, after performance of concrete column confined pours, preformed hole is formed on performance of concrete column confined top；Reserved
Rod iron is penetrated in hole；
（2）According to technological requirement, bridle iron is symmetrically installed at rod iron both ends, lifting platform tune is symmetrically installed on bridle iron
Regulating device；Lifting platform regulating device is the height that can be lifted to adjust platform；
（3）According to technological requirement, carrying steel girder platform is set in lifting platform regulating device, carries steel girder platform
It is supported in the lifting platform regulating device of two adjacent performance of concrete column confined；Cushion block is set on carrying steel girder platform,
Set shaped steel formwork is installed, casting concrete then forms the bent cap of bridge pier on cushion block.
（4）Concrete bent cap, it is necessary to when removing, carries out as steps described below after concrete strength reaches：First by steel
The left and right two lifting platform regulating devices installed on bearing carry out step-down operation, turn down the height of platform；Then, according to work
Skill requires to remove set shaped steel formwork；Afterwards, according to the reverse order of installation, remove successively cushion block, remove carrying steel girder platform,
Remove the rod iron in bridle iron and preformed hole.
Further feature is：Bridle iron is connected on bridle iron sleeve, or bridle iron sleeve, steel are set on bridle iron
Support base sleeve barrel is sleeved on rod iron；Several steel bushing trip bolt holes have been disposed radially on bridle iron sleeve, have been fastened in steel bushing
Screw is screwed into screw hole, the front end of screw is tight against on the lateral surface of rod iron.
Compared with prior art, the method for the present invention has the following advantages that：
1st, the steel truss support construction method of the improved pier cap beam construction of the present invention, can shorten pier cap beam construction
Activity time, it is ensured that the quick formation of the steel truss support of pier cap beam construction, improves the working security of support system, realize
The stabilization of pier cap beam template, ensures the closely knit quality technology effect of bent cap concrete placings.
2nd, it can meet the needs of different shape pier stud condition and reserved bearing duct form, enrich existing bridge coping and apply
Work scheme engineering legislation.
When the 3rd, dismantling, removed according to the reverse order of installation, the disassembling section time can be greatly shortened, shorten working at height
Activity time, improve the security of disassembling section.
Brief description of the drawings
Fig. 1 is the supporting structure schematic diagram of method for supporting of the present invention；
Fig. 2 coordinates mounting structure schematic diagram for bridle iron and rod iron；
Fig. 3 is bridle iron, rod iron and bridge pier column coordinate mounting structure schematic diagram；
Fig. 4 is bridle iron, rod iron and bridge pier column coordinate mounting structure sectional view.
In attached drawing：1-bridge pier column, 2-bridle iron, 3-lifting platform regulating device, 4-carrying steel truss are put down
Platform, 5-cushion block, 6-set shaped steel formwork, 7-bent cap, 8-bridle iron sleeve, 9-rod iron, 10-steel bushing trip bolt hole,
11-screw, ribbed panel under 12-bridle iron, 13-steel bushing of curved plate, 14-bridle iron platform 15-arc-shaped steel of ribbed panel
Plate ribbed panel.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.A kind of pier cap beam construction
Steel truss support and method for dismounting, include the following steps：
（1）According to technological requirement, after performance of concrete column confined 1 pours, preformed hole is formed on 1 top of performance of concrete column confined；Mixed
Rod iron 9 is penetrated in the preformed hole of solidifying knoll column 1；
（2）According to technological requirement, bridle iron 2 is symmetrically installed at rod iron both ends, lifting platform is symmetrically installed on bridle iron 2
Regulating device 3；Bridle iron 2 is the steel structure support that can bear weight, and lifting platform regulating device 3 can lift, by gas
Move, surge or mechanical device etc. is lifted, to adjust the height of platform；
（3）According to technological requirement, carrying steel girder platform 4 is set in lifting platform regulating device 3, carrying steel truss is put down
Platform 4 is supported in the lifting platform regulating device 3 of two adjacent performance of concrete column confined 1；Adjust as needed one or more flat
Platform elevation and subsidence regulating device 3 carries the height or levelness of steel girder platform 4 to adjust；Pad is set on carrying steel girder platform 4
Block 5, installs set shaped steel formwork 6 on cushion block 5, and casting concrete then forms the bent cap 7 of bridge pier.It is energy to carry steel girder platform 4
The steel structure support of weight is enough born, cushion block 5 is evenly arranged on carrying steel girder platform 4, and set shaped steel formwork 6 is according to bridge pier
The shape of bent cap 7（Structure）Set, the casting concrete in the cavity that set shaped steel formwork 6 is formed, technique is met after dry
It is required that bent cap 7.
（4）The concrete bent cap 7 of formation, it is necessary to when removing, carries out by the following method after concrete strength reaches：It is first
The lifting platform regulating device 3 of left and right two being symmetrically installed on bridle iron is first subjected to step-down operation, the height of platform is turned down, makes
Set shaped steel formwork 6 is separated from or loosens with bent cap 7；Then, set shaped steel formwork 6 is removed according to technological requirement or the prior art；Most
Afterwards, according to the reverse order of installation, cushion block 5 is removed successively, carrying steel girder platform 4 is removed, removes in bridle iron 2 and preformed hole
Rod iron 9.
The lower end of bridle iron 2 is supported on rod iron 9, its side is engaged with the lateral surface of performance of concrete column confined 1, in order to prevent
Bridle iron 2 produces inclination, and the present invention further improves bridle iron 2 as follows：The riser medial surface and performance of concrete column confined of bridle iron 2
1 lateral surface is identical arc-shaped curved surface, and mating surface between the two designs for matched arc-shaped curved surface, can prevent bridle iron
2 inclination, and can be close together；In addition, for ensure connection 2 positioning correcting of bridle iron and install convenient, bridle iron 2 with
Designed and produced between rod iron 9 using the carrying of 8 form of bridle iron sleeve, bridle iron 2 is connected on bridle iron sleeve 8, or steel branch
Cover for seat cylinder 8 makes into a single integrated structure with bridle iron 2（Bridle iron sleeve 8 is set on bridle iron 2）, bridle iron sleeve 8 is sleeved on steel
On rod 9, while several steel bushing trip bolt holes 10 are radially designed with bridle iron sleeve 8, in steel bushing trip bolt hole
It is screwed into screw 11 in 10, the front end of screw 11 is tight against on the lateral surface of rod iron 9, bridle iron 2 and rod iron 9 that just can be when mounted
Between fastening combine, and the overall cambered design due to riser of bridle iron 2 and bridge pier surface fit closely it is anti-incline, formed surely
Fixed, complete steel truss support system.
As shown in Figure 2,3, bridle iron 2 is provided with bridle iron curved plate 12, passes through bridle iron curved plate 12 and coagulation
1 lateral surface of knoll column is engaged, and mating surface between the two is identical arc；Set under steel bushing and add on bridle iron sleeve 8
Floor 13, bridle iron platform ribbed panel 14, can also be in the steel branch of bridle iron 2 to improve the strength and stiffness of bridle iron sleeve 8
12 outer surface of seat curved plate sets curved plate ribbed panel 15, to improve its strength and stiffness.
The steel truss support construction technology and method constructed using improved pier cap beam, can shorten pier cap beam construction
Activity time, it is ensured that the quick formation of the steel truss support of pier cap beam construction, improves the working security of support system, real
The stabilization of existing pier cap beam template, ensures the closely knit quality technology effect of bent cap concrete placings.Its technological process is as follows：
（1）Erection sequence：1. performance of concrete column confined 1 pour to be formed → 2. penetrate steel in 1 top preformed hole of performance of concrete column confined
Rod 9 → being 3. symmetrically installed bridle iron 2, bridle iron sleeve 8 at 9 both ends of rod iron → is 4. symmetrically installed lifting platform tune on bridle iron
Regulating device 3 → 5. in lifting platform regulating device 3 installation carrying steel girder platform 4 → 6. on carrying steel girder platform 4
Cloth cushion block 5 → 7. installs the casting concrete of set shaped steel formwork 6 → 8. on cushion block 5 and then forms the bent cap 7 of bridge pier.
（2）Dismounting order：1. 7 concrete strength of concrete bent cap formed reaches → 2. to being symmetrically installed on bridle iron
Lifting platform regulating device 3, which turns down height → 3. remove set shaped steel formwork 6 → and 4. removes cushion block 5 → 5. remove carrying steel truss, puts down
Platform 4 → 6. removes the rod iron 9 in bridle iron 2 and preformed hole.
The steel truss support construction technology and method of a kind of pier cap beam construction, can shorten pier cap beam construction
Activity time, it is ensured that the quick formation of the steel truss support of pier cap beam construction, improves the working security of support system, realize
The stabilization of pier cap beam template, ensures the closely knit quality technology effect of bent cap concrete placings.Also can be according to meeting different shape pier stud
The needs of condition and reserved bearing duct form, enrich existing bridge coping arrangement and method for construction engineering legislation.
The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to preferred embodiment to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that, it can modify to technical scheme
Or equivalent substitution, without departing from the objective and scope of technical solution of the present invention, it should all cover the claim in the present invention
Among scope.
Claims (1)
1. a kind of steel truss support and method for dismounting of pier cap beam construction, it is characterised in that include the following steps：
（1）According to technological requirement, after performance of concrete column confined pours, preformed hole is formed on performance of concrete column confined top；In preformed hole
Penetrate rod iron；
（2）According to technological requirement, bridle iron is symmetrically installed at rod iron both ends, lifting platform is symmetrically installed on bridle iron and adjusts dress
Put；Lifting platform regulating device can be lifted to adjust the height of platform；
Bridle iron is connected on bridle iron sleeve, or bridle iron sleeve is set on bridle iron, and bridle iron sleeve is sleeved on rod iron；
Several steel bushing trip bolt holes have been disposed radially on bridle iron sleeve, screw, spiral shell are screwed into steel bushing trip bolt hole
The front end of nail is tight against on the lateral surface of rod iron；
The riser medial surface of bridle iron is identical arc-shaped curved surface with performance of concrete column confined lateral surface；
（3）According to technological requirement, carrying steel girder platform, carrying steel girder platform support are set in lifting platform regulating device
In the lifting platform regulating device of two adjacent performance of concrete column confined；Cushion block is set on carrying steel girder platform, in cushion block
Upper installation set shaped steel formwork, casting concrete then form the bent cap of bridge pier；
（4）Concrete bent cap, it is necessary to when removing, carries out as steps described below after concrete strength reaches：First by bridle iron
Left and right two lifting platform regulating devices of upper installation carry out step-down operation, turn down the height of platform；Then, will according to technique
Seek dismounting set shaped steel formwork；Afterwards, according to the reverse order of installation, cushion block is removed successively, carrying steel girder platform is removed, removes
Rod iron in bridle iron and preformed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837349.XA CN106192771B (en) | 2016-09-21 | 2016-09-21 | A kind of steel truss support and method for dismounting of pier cap beam construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837349.XA CN106192771B (en) | 2016-09-21 | 2016-09-21 | A kind of steel truss support and method for dismounting of pier cap beam construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106192771A CN106192771A (en) | 2016-12-07 |
| CN106192771B true CN106192771B (en) | 2018-04-24 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107653781A (en) * | 2017-09-20 | 2018-02-02 | 龙元建设集团股份有限公司 | Big steel pipe truss and construction method for bent cap cast-in-place construction |
| CN109024298B (en) * | 2018-08-27 | 2021-02-12 | 中铁四局集团市政工程有限公司 | Capping beam construction method |
| CN111379199B (en) * | 2020-03-30 | 2021-08-03 | 中铁二院工程集团有限责任公司 | Construction device, construction system and construction method for void pile plate structure |
| CN111893897B (en) * | 2020-08-13 | 2022-05-24 | 中国水利水电第八工程局有限公司 | Supporting device for bridge capping beam construction and bridge capping beam construction method |
| CN115233562A (en) * | 2022-08-22 | 2022-10-25 | 中国十九冶集团有限公司 | Formwork supporting system for pouring of highway bridge engineering cover beam and construction method |
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| CN102234982A (en) * | 2011-05-10 | 2011-11-09 | 吴江市明港道桥工程有限公司 | Circular pier capping beam supporting device |
| KR20120034187A (en) * | 2012-03-21 | 2012-04-10 | 원대연 | Constrution methoed for prestressed composite truss girder using steel truss member |
| CN202359506U (en) * | 2011-12-15 | 2012-08-01 | 中交四航局第一工程有限公司 | Double hoop supporting system for pier column capping beam |
| CN204510005U (en) * | 2015-01-20 | 2015-07-29 | 中国建筑第七工程局有限公司 | A kind of Coping Construction operating platform |
| CN204919347U (en) * | 2015-08-07 | 2015-12-30 | 山西四建集团有限公司 | Iron wedge support system with adjustable pier is accepted bent cap construction and is used |
| CN105369745A (en) * | 2014-08-26 | 2016-03-02 | 葛洲坝集团第五工程有限公司 | Bridge support exchanging and lifting reaction frame |
| CN105735149A (en) * | 2016-03-04 | 2016-07-06 | 中交路桥（北京）科技有限公司 | Bridge jacking counter-force device suitable for narrow and small space between beam bottom and cover beam |
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2016
- 2016-09-21 CN CN201610837349.XA patent/CN106192771B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234982A (en) * | 2011-05-10 | 2011-11-09 | 吴江市明港道桥工程有限公司 | Circular pier capping beam supporting device |
| CN202359506U (en) * | 2011-12-15 | 2012-08-01 | 中交四航局第一工程有限公司 | Double hoop supporting system for pier column capping beam |
| KR20120034187A (en) * | 2012-03-21 | 2012-04-10 | 원대연 | Constrution methoed for prestressed composite truss girder using steel truss member |
| CN105369745A (en) * | 2014-08-26 | 2016-03-02 | 葛洲坝集团第五工程有限公司 | Bridge support exchanging and lifting reaction frame |
| CN204510005U (en) * | 2015-01-20 | 2015-07-29 | 中国建筑第七工程局有限公司 | A kind of Coping Construction operating platform |
| CN204919347U (en) * | 2015-08-07 | 2015-12-30 | 山西四建集团有限公司 | Iron wedge support system with adjustable pier is accepted bent cap construction and is used |
| CN105735149A (en) * | 2016-03-04 | 2016-07-06 | 中交路桥（北京）科技有限公司 | Bridge jacking counter-force device suitable for narrow and small space between beam bottom and cover beam |
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| CN106192771A (en) | 2016-12-07 |
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