CN106192771A - The steel truss support of a kind of pier cap beam construction and method for dismounting - Google Patents
The steel truss support of a kind of pier cap beam construction and method for dismounting Download PDFInfo
- Publication number
- CN106192771A CN106192771A CN201610837349.XA CN201610837349A CN106192771A CN 106192771 A CN106192771 A CN 106192771A CN 201610837349 A CN201610837349 A CN 201610837349A CN 106192771 A CN106192771 A CN 106192771A
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- iron
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- platform
- bridle iron
- bridle
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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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- Engineering & Computer Science (AREA)
- 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, in the preformed hole that performance of concrete column confined top is formed, penetrate rod iron；Bridle iron, mounting platform elevation and subsidence regulating device on bridle iron are installed at rod iron two ends；Lifting platform adjusting means arranges carrying steel girder platform；Arranging cushion block, set shaped steel formwork on carrying steel girder platform, casting concrete then forms the concrete bent cap of bridge pier；During dismounting, first lifting platform adjusting means is carried out step-down operation to turn down height；Remove set shaped steel formwork；According to the reverse order installed, 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, improve the working security of support system, realize stablizing of pier cap beam template, ensure the quality technology effect that bent cap concrete placings is closely knit.During dismounting, remove according to the reverse order installed, disassembling section time can be greatly shortened, improve the safety of disassembling section.
Description
Technical field
The present invention relates to steel truss support and the method for dismounting of a kind of pier cap beam construction, particularly relate to a kind of pier cap beam
The steel truss support of construction and method for dismounting.
Background technology
The steel truss support of traditional pier cap beam construction and method for dismounting, it is common that after performance of concrete column confined is formed, at pier
Hole reserved on post penetrates shaped steel or rod iron forms steel truss support point, and its strong point directly spreads after transverse lap I-steel
Little steel plate is installed jack, is symmetrically installed contact steel truss formation Coping Construction platform；In construction, the rod iron of installation there will be
Rotate, be difficult to keep balance, the contact portion of contact I-steel and little steel plate need to be carried out welding connection, even to I-steel
Carry out welding in the lump to be connected with rod iron；When the steel truss operation platform load formed occurs unbalance change, steel truss is supporting
The unsafe condition of longitudinal and transverse two directions skew is there will be on some 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 for that the Pier Formwork at pier cap beam is installed and concrete formation pouring construction；
This construction technology being mainly the steel truss support that pier cap beam is constructed and method need to improve.Use the pier cap beam after improving
The steel truss support construction technology of construction and method, can shorten the activity time of pier cap beam construction, it is ensured that pier cap beam is constructed
The quick formation of steel truss support, improve the working security of support system, it is achieved stablizing of pier cap beam template, ensure lid
The quality technology effect that beam concrete placings is closely knit.
Summary of the invention
For above-mentioned deficiency present in prior art, the invention provides the steel truss support of a kind of pier cap beam construction
Construction technology, it is easy to the construction technology improved method of steel truss support of pier cap beam construction designing and constructing.
In order to solve above-mentioned technical problem, present invention employs following technical scheme；A kind of steel truss of pier cap beam construction
The construction method that frame supports, comprises the 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, it is symmetrically installed bridle iron at rod iron two ends, bridle iron is symmetrically installed lifting platform regulation dress
Put；Lifting platform adjusting means is to lift to regulate the height of platform；
(3) according to technological requirement, arranging carrying steel girder platform in lifting platform adjusting means, carrying steel girder platform supports
In the lifting platform adjusting means of two adjacent performance of concrete column confineds；Carrying steel girder platform arranges cushion block, at cushion block
Upper installation set shaped steel formwork, casting concrete then forms the bent cap of bridge pier.
(4) concrete bent cap is after concrete strength reaches, and when needing to remove, carries out as steps described below: first by steel
Left and right two the lifting platform adjusting meanss 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 install reverse order, 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 arranges bridle iron sleeve, steel on bridle iron
Support base sleeve barrel is enclosed within rod iron；Bridle iron sleeve is disposed radially several steel bushing trip bolt holes, has fastened at steel bushing
Being screwed into screw in screw hole, the front end of screw is tight against on the lateral surface of rod iron.
Compared with prior art, the inventive method has the advantage that
The steel truss support construction method of the pier cap beam construction after 1, the present invention improves, can shorten the operation of pier cap beam construction
Time, it is ensured that the quick formation of the steel truss support of pier cap beam construction, improve the working security of support system, it is achieved bridge pier
Stablizing of capping beam template, ensures the quality technology effect that bent cap concrete placings is closely knit.
2, difformity pier stud condition and the needs of reserved bearing duct form can be met, enrich existing bridge coping and execute
Work scheme engineering legislation.
3, during dismounting, remove according to the reverse order installed, disassembling section time can be greatly shortened, shorten work high above the ground
Activity time, improve disassembling section safety.
Accompanying drawing explanation
Fig. 1 is the supporting construction schematic diagram of method for supporting of the present invention；
Fig. 2 is that bridle iron coordinates mounting structure schematic diagram with rod iron；
Fig. 3 is that bridle iron, rod iron coordinate mounting structure schematic diagram with bridge pier column；
Fig. 4 is that bridle iron, rod iron coordinate mounting structure sectional view with bridge pier column.
In accompanying drawing: 1 bridge pier column, 2 bridle irons, 3 lifting platform adjusting meanss, 4 carrying steel truss are put down
Platform, 5 cushion blocks, 6 set shaped steel formworks, 7 bent caps, 8 bridle iron sleeves, 9 rod irons, 10 steel bushing trip bolt holes,
11 screws, ribbed panel under 12 bridle iron curved plate 13 steel bushings, 14 bridle iron platform ribbed panel 15 arc-shaped steels
Plate ribbed panel.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.A kind of pier cap beam construction
Steel truss support and method for dismounting, comprise the steps:
(1) according to technological requirement, after performance of concrete column confined 1 pours, preformed hole is formed on performance of concrete column confined 1 top；At concrete
Rod iron 9 is penetrated in the preformed hole of pier stud 1；
(2) according to technological requirement, it is symmetrically installed bridle iron 2 at rod iron two ends, bridle iron 2 is symmetrically installed lifting platform regulation
Device 3；Bridle iron 2 is the steel structure support that can bear weight, and lifting platform adjusting means 3 can lift, and relies on pneumatic, liquid
Dynamic or machinery etc. lifts, to regulate the height of platform；
(3) according to technological requirement, lifting platform adjusting means 3 arranges carrying steel girder platform 4, carries steel girder platform 4
It is supported in the lifting platform adjusting means 3 of adjacent two performance of concrete column confined 1；Regulate one or more platform liter as required
Falling tone regulating device 3 carries height or the levelness of steel girder platform 4 with regulation；Carrying steel girder platform 4 arranges cushion block 5,
Installing set shaped steel formwork 6 on cushion block 5, casting concrete then forms the bent cap 7 of bridge pier.Carrying steel girder platform 4 is to hold
By the steel structure support of weight, cushion block 5 is evenly arranged on carrying steel girder platform 4, and set shaped steel formwork 6 is according to the bent cap of bridge pier
The shape (structure) of 7 is arranged, casting concrete in the cavity that set shaped steel formwork 6 is formed, and is met technological requirement after drying
Bent cap 7.
(4) the concrete bent cap 7 formed, after concrete strength reaches, when needing to remove, is carried out by the following method:
First two, the left and right lifting platform adjusting means 3 being symmetrically installed on bridle iron is carried out step-down operation, turns down the height of platform,
Make set shaped steel formwork 6 and bent cap 7 be separated from or loosen；Then, set shaped steel formwork 6 is removed according to technological requirement or prior art；
Finally, according to the reverse order installed, remove cushion block 5 successively, remove carrying steel girder platform 4, dismounting bridle iron 2 and preformed hole
Interior rod iron 9.
The lower end of bridle iron 2 is supported on rod iron 9, and match with the lateral surface of performance of concrete column confined 1 in its side, in order to prevent
Bridle iron 2 produces, and bridle iron 2 is improved as follows by the present invention further: the riser medial surface of bridle iron 2 and performance of concrete column confined
1 lateral surface is identical arc-shaped curved surface, and cooperation face between the two is the arc-shaped curved surface design matched, and can prevent bridle iron
The inclination of 2, and can be close together；It addition, for guarantee bridle iron 2 positioning correcting coupled and install convenient, bridle iron 2 with
Using the carrying of bridle iron sleeve 8 form to design and produce between rod iron 9, bridle iron 2 is connected on bridle iron sleeve 8, or steel props up
Cover for seat cylinder 8 and bridle iron 2 are fabricated to integrative-structure (arranging bridle iron sleeve 8 on bridle iron 2), and bridle iron sleeve 8 is enclosed within steel
On rod 9, on bridle iron sleeve 8, radially it is designed with several steel bushing trip bolt holes 10, in steel bushing trip bolt hole simultaneously
Being screwed into screw 11 in 10, the front end of screw 11, just can bridle iron 2 when mounted and rod iron 9 tight against on the lateral surface of rod iron 9
Between fastening combine, and bridle iron 2 entirety is anti-owing to cambered design and the bridge pier surface of riser fit tightly inclines, and is 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, by bridle iron curved plate 12 and coagulation
Knoll post 1 lateral surface matches, and cooperation face between the two is identical arc；Bridle iron sleeve 8 is arranged and adds under steel bushing
Floor 13, bridle iron platform ribbed panel 14, to improve the strength and stiffness of bridle iron sleeve 8, it is also possible to the steel at bridle iron 2 props up
Seat curved plate 12 outer surface arranges curved plate ribbed panel 15, to improve its strength and stiffness.
Use steel truss support construction technology and the method for the pier cap beam construction after improving, pier cap beam construction can be shortened
Activity time, it is ensured that the quick formation of the steel truss support of pier cap beam construction, improve the working security of support system, real
Stablizing of existing pier cap beam template, ensures the quality technology effect that bent cap concrete placings is closely knit.Its technological process is as follows:
(1) erection sequence: 1. performance of concrete column confined 1 pour formation → 2. penetrate in the preformed hole of performance of concrete column confined 1 top rod iron 9 →
3. bridle iron 2, bridle iron sleeve 8 → be 4. symmetrically installed lifting platform regulation dress on bridle iron it is symmetrically installed at rod iron 9 two ends
Put 3 → 5. the equal cloth pad on carrying steel girder platform 4 of carrying steel girder platform 4 → 6. is installed in lifting platform adjusting means 3
The casting concrete of block 5 → 7. install on cushion block 5 set shaped steel formwork 6 → 8. then forms the bent cap 7 of bridge pier.
(2) dismounting order: concrete bent cap 7 concrete strength 1. formed reaches → 2. to being symmetrically installed on bridle iron
Lifting platform adjusting means 3 is turned down height → 3. remove set shaped steel formwork 6 → 4. remove cushion block 5 → 5. remove carrying steel truss and is put down
Platform 4 → 6. remove the rod iron 9 in bridle iron 2 and preformed hole.
The steel truss support construction technology of described a kind of pier cap beam construction and method, 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, it is achieved
Stablizing of pier cap beam template, ensures the quality technology effect that bent cap concrete placings is closely knit.Also dependent on meeting difformity pier stud
Condition and the needs of reserved bearing duct form, enrich existing bridge coping arrangement and method for construction engineering legislation.
Above example is only in order to illustrate technical scheme and unrestricted, although with reference to preferred embodiment to this
Bright it is described in detail, it will be understood by those within the art that, technical scheme can be modified
Or equivalent, without deviating from objective and the scope of technical solution of the present invention, it all should contain the claim in the present invention
In the middle of scope.
Claims (2)
1. the steel truss support of pier cap beam construction and method for dismounting, it is characterised in that comprise the 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, it is symmetrically installed bridle iron at rod iron two ends, bridle iron is symmetrically installed lifting platform regulation dress
Put；Lifting platform adjusting means can lift to regulate the height of platform；
(3) according to technological requirement, arranging carrying steel girder platform in lifting platform adjusting means, carrying steel girder platform supports
In the lifting platform adjusting means of two adjacent performance of concrete column confineds；Carrying steel girder platform arranges cushion block, at cushion block
Upper installation set shaped steel formwork, casting concrete then forms the bent cap of bridge pier；
(4) concrete bent cap is after concrete strength reaches, and when needing to remove, carries out as steps described below: first by bridle iron
Left and right two lifting platform adjusting meanss of upper installation carry out step-down operation, turn down the height of platform；Then, want according to technique
Seek dismounting set shaped steel formwork；Afterwards, according to the reverse order installed, remove cushion block successively, remove carrying steel girder platform, dismounting
Rod iron in bridle iron and preformed hole.
The steel truss support of pier cap beam the most according to claim 1 construction and method for dismounting, it is characterised in that: bridle iron
Being connected on bridle iron sleeve, or arrange bridle iron sleeve on bridle iron, bridle iron sleeve is enclosed within rod iron；At bridle iron set
Being disposed radially several steel bushing trip bolt holes on Tong, be screwed into screw in steel bushing trip bolt hole, the front end of screw is tight
It is against on the lateral surface of rod iron.
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 true CN106192771A (en) | 2016-12-07 |
| CN106192771B CN106192771B (en) | 2018-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610837349.XA Active CN106192771B (en) | 2016-09-21 | 2016-09-21 | A kind of steel truss support and method for dismounting of pier cap beam construction |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109024298A (en) * | 2018-08-27 | 2018-12-18 | 中铁四局集团市政工程有限公司 | Construction method of bent cap |
| CN111379199A (en) * | 2020-03-30 | 2020-07-07 | 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 |
| CN111893897A (en) * | 2020-08-13 | 2020-11-06 | 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 |
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| 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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| 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 |
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| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109024298A (en) * | 2018-08-27 | 2018-12-18 | 中铁四局集团市政工程有限公司 | Construction method of bent cap |
| CN111379199A (en) * | 2020-03-30 | 2020-07-07 | 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 |
| 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 |
| CN111893897A (en) * | 2020-08-13 | 2020-11-06 | 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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| Publication number | Publication date |
|---|---|
| CN106192771B (en) | 2018-04-24 |
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