CN106337369B - A kind of steel truss support method of pier cap beam construction - Google Patents
A kind of steel truss support method of pier cap beam construction Download PDFInfo
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- CN106337369B CN106337369B CN201610837166.8A CN201610837166A CN106337369B CN 106337369 B CN106337369 B CN 106337369B CN 201610837166 A CN201610837166 A CN 201610837166A CN 106337369 B CN106337369 B CN 106337369B
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- iron
- bridle iron
- steel
- concrete
- 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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- 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, rod iron is penetrated in the preformed hole formed on performance of concrete column confined top；Bridle iron is symmetrically installed at rod iron both ends, lifting platform regulating device is symmetrically installed on bridle iron；Carrying steel girder platform is set in lifting platform regulating device, and carrying steel girder platform 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 on cushion block, casting concrete then forms the concrete bent cap of bridge pier.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, it realizes the stabilization of pier cap beam template, ensures 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, shorten the activity time of working at height, improve the security of disassembling section.
Description
Technical field
It constructs the present invention relates to a kind of steel truss support method of pier cap beam construction more particularly to a kind of pier cap beam
Steel truss support method.
Background technology
The steel truss support method of traditional pier cap beam construction is typically after performance of concrete column confined is formed, on pier stud in advance
The hole stayed penetrates shaped steel or rod iron and forms steel truss support point, and small steel plate is directly spread after transverse lap I-steel on supporting point
Installation jack is symmetrically installed contact steel truss formation Coping Construction platform；In construction, the rod iron of installation is present with rotation,
It 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 and steel
Stick carries out welding connection together；When unbalance variation occurs for the steel truss operation platform load of formation, steel truss is in supporting point steel
It is present with the unsafe condition of longitudinal and transverse two directions offset on stick；It is unfavorable for the assembling and disassembling of steel truss, and in working at height
Activity time is longer, and work efficiency is low, is unfavorable in the Pier Formwork installation of pier cap beam and concrete formation pouring construction；This master
If the construction technology and method of the steel truss support of pier cap beam construction need to improve.It is constructed using improved pier cap beam
Steel truss support construction technology and method, can shorten pier cap beam construction activity time, it is ensured that pier cap beam construction steel
The quick formation of truss support improves the working security of support system, realizes the stabilization of pier cap beam template, ensures bent cap concrete
Pour closely knit quality technology effect.
The content of the invention
For above-mentioned deficiency in the prior art, the present invention provides a kind of steel truss supports 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 solutions；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 can lift to adjust the height of platform；
（3）According to technological requirement, carrying steel girder platform in lifting platform regulating device is set, 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 concrete bent cap of bridge pier on cushion block.
Further feature is：The bridle iron curved plate medial surface of bridle iron is what is coincide with performance of concrete column confined lateral surface
Arc-shaped curved surface.
Bridle iron is connected on bridle iron sleeve or bridle iron sleeve is set on bridle iron, and bridle iron sleeve is sleeved on steel
On stick；Several steel bushing trip bolt holes have been disposed radially on bridle iron sleeve, spiral shell is screwed into steel bushing trip bolt hole
Nail, the front end of screw is tight against on the lateral surface of rod iron.
Compared with prior art, the invention has the advantages that：
1st, the steel truss support construction technology and method of the improved pier cap beam construction of the present invention, can shorten pier cap beam
The activity time of construction, it is ensured that the quick formation of the steel truss support of pier cap beam construction improves the construction safety of support system
Property, it realizes the stabilization of pier cap beam template, ensures the closely knit quality technology effect of bent cap concrete placings.
2nd, the needs of different shape pier stud condition and reserved bearing duct form can be met, existing bridge coping is enriched 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.
Description of the drawings
Fig. 1 is the support construction 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-pier stud bent cap Cast-in-place concrete, 8-bridle iron sleeve, 9-rod iron, the fastening of 10-steel bushing
Screw hole, 11-screw, ribbed panel under 12-bridle iron, 13-steel bushing of curved plate, 14-bridle iron platform ribbed panel 15-
Curved plate ribbed panel.
Specific 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 method, 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
It moves, surge or mechanical device 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；It adjusts 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 bridge pier in the cavity formed in set shaped steel formwork 6
Concrete bent cap 7.Carrying steel girder platform 4 is the steel structure support that can bear weight, and cushion block 5 is evenly arranged in carrying steel truss and puts down
On platform 4, set shaped steel formwork 6 according to the concrete bent cap 7 of bridge pier shape（Structure）It sets, in the cavity formed in set shaped steel formwork 6
Casting concrete obtains the concrete bent cap 7 for meeting technological requirement after dry.
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 2 is first subjected to step-down operation, turns down the height of platform,
Set shaped steel formwork 6 is made to be separated from or loosen with concrete bent cap 7；Then, set shaped steel formwork is removed according to technological requirement or the prior art
6；Preferably, according to the reverse order of installation, cushion block 5 is removed successively, carrying steel girder platform 4 is removed, removes bridle iron 2 and reserve
Rod iron 9 in hole.
The lower end of bridle iron 2 is supported on rod iron 9, and side is engaged with the lateral surface of performance of concrete column confined 1, in order to prevent
Bridle iron 2 generates inclination, and the present invention is further improved 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
It is 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 stick 9, while several steel bushing trip bolt holes 10 are radially designed on 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 whole 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；It sets under steel bushing and adds 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
Stick 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 concrete 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, realizes
The stabilization of pier cap beam template ensures the closely knit quality technology effect of bent cap concrete placings.It 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, the claim in the present invention should all be covered
Among scope.
Claims (1)
- A kind of 1. steel truss support method 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 It puts；Lifting platform regulating device can lift to adjust the height of platform；（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 forms the concrete bent cap of bridge pier in the cavity of set shaped steel formwork formation；Bridle iron curved plate is provided on bridle iron, bridle iron curved plate medial surface and performance of concrete column confined lateral surface are identical Arc-shaped curved surface；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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837166.8A CN106337369B (en) | 2016-09-21 | 2016-09-21 | A kind of steel truss support method of pier cap beam construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837166.8A CN106337369B (en) | 2016-09-21 | 2016-09-21 | A kind of steel truss support method of pier cap beam construction |
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| Publication Number | Publication Date |
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| CN106337369A CN106337369A (en) | 2017-01-18 |
| CN106337369B true CN106337369B (en) | 2018-05-22 |
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| CN201610837166.8A Active CN106337369B (en) | 2016-09-21 | 2016-09-21 | A kind of steel truss support method of pier cap beam construction |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152283B (en) * | 2019-10-21 | 2022-06-10 | 宁波市政工程建设集团股份有限公司 | Construction method of large-crotch-diameter supporting system of small box girder type hidden cover beam prefabricated on road and bridge |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100566665B1 (en) * | 2005-12-08 | 2006-04-03 | 극동엔지니어링(주) | A temporary bearing for jacking up upper structure of bridge |
| CN101922143A (en) * | 2010-07-02 | 2010-12-22 | 上海市第二市政工程有限公司 | Construction method of bent cap |
| CN202181511U (en) * | 2011-06-21 | 2012-04-04 | 汕头市达濠市政建设有限公司 | Device for adjusting and dismantling pier coping beam template |
| 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 |
| 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 |
-
2016
- 2016-09-21 CN CN201610837166.8A patent/CN106337369B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100566665B1 (en) * | 2005-12-08 | 2006-04-03 | 극동엔지니어링(주) | A temporary bearing for jacking up upper structure of bridge |
| CN101922143A (en) * | 2010-07-02 | 2010-12-22 | 上海市第二市政工程有限公司 | Construction method of bent cap |
| CN202181511U (en) * | 2011-06-21 | 2012-04-04 | 汕头市达濠市政建设有限公司 | Device for adjusting and dismantling pier coping beam template |
| 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 |
| 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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| CN106337369A (en) | 2017-01-18 |
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