CN108203921A - Suitable for the steel-concrete mixing girder construction and design method of self-compacting concrete cast - Google Patents
Suitable for the steel-concrete mixing girder construction and design method of self-compacting concrete cast Download PDFInfo
- Publication number
- CN108203921A CN108203921A CN201810076170.6A CN201810076170A CN108203921A CN 108203921 A CN108203921 A CN 108203921A CN 201810076170 A CN201810076170 A CN 201810076170A CN 108203921 A CN108203921 A CN 108203921A
- Authority
- CN
- China
- Prior art keywords
- oblique
- stiffener
- oblique stiffener
- concrete
- steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 51
- 239000011376 self-consolidating concrete Substances 0.000 title claims abstract description 37
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title abstract description 16
- 238000013461 design Methods 0.000 title abstract description 12
- 239000003351 stiffener Substances 0.000 claims abstract description 95
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 70
- 239000010959 steel Substances 0.000 claims abstract description 70
- 238000000926 separation method Methods 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000011372 high-strength concrete Substances 0.000 description 3
- 239000011083 cement mortar Substances 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011800 void material Substances 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention provides a kind of steel concrete mixing girder construction and design method suitable for self-compacting concrete cast, belongs to science of bridge building field.This is suitable for the steel concrete mixing girder construction of self-compacting concrete cast, change the grid mode of thinking that conventional Steel Structural Design uses, skew crossing type stiffener is used instead, the mode of arranged crosswise, platform is flowed as concrete, assist position needed for self-compacting concrete arrival, rather than pumping line is borrowed using eminence and is directly poured into a mould, the sharp of aggregate is avoided to splash, so as to avoid the separation of concrete composition well, be conducive to the discharge of inner air, thus be equally applicable to similar other concrete cast influenced by construction space.
Description
Technical field
The invention belongs to science of bridge building field more particularly to a kind of steel-concretes suitable for self-compacting concrete cast
Girder construction and design method are mixed, suitable for the design and construction of Steel-concrete Composite Beams bridge, is also applied for the combination of other steel reinforced concretes
The design and construction of force structure.
Background technology
With the improvement of mix parameters of high-strength self-compacting concrete, the structure of self-compact concrete in construction technique is used in present engineering
It is more and more, because self-compacting concrete can reduce the process of vibrating in concrete placement, it can be achieved with conventional coagulation
Soil identical compaction rate or intensity index, this is undoubtedly carried for being limited by construction environment for the engineering that can not implement to vibrate
Very big help is supplied.It but may ratio for regular tenacity concrete or for the large-area constructions such as conventional terrace
It is easier to, even if intensity may be influenced by compaction rate, in the case where unit cost becomes closer to, raising can be passed through
The concrete of level-one label come avoid because using self-compacting concrete due to caused by closely knit defect.However for high-strength concrete knot
Structure, it is very difficult and workability of concrete may be caused to decline come proof strength performance using label is improved, particularly pair
It is typically main bearing member in the structure using high-strength concrete, the use for the structure that strength stability directly determines is pacified
Entirely.This is for difficult concrete construction of vibrating, the comprehensive condition that unit cost price is again higher, structure stress safe class is high
When, using the direct perfusion method of conventional self-compacting concrete, there are great risks.
Steel-concrete hybrid beam is in recent years in science of bridge building using a kind of more structure type, applied to including big
Span continuous beam, continuous rigid frame, cable-stayed bridge main-beam etc.；Its structure stress is clear and definite, makes full use of the few (phase of high-strength and dosage of steel
Should be light-weight), economy with reference to high-strength concrete carrys out force balance compared with high compression strength, dosage big (corresponding weight is big).
Due to long-span bridge girder section height, and from steel construction stress into concrete conversion process, section is usually relatively thin, the rigidity of structure
Variation is apparent, in addition interior design has enough stiffeners to avoid steel plate unstability so that coagulation inside adapter section steel construction
Soil cast can not use vibrating method to implement or even if can vibrate but more difficult abundant implementation, because of stiffener or presstressed reinforcing steel
Pipeline, steel chamber internal sectioned space etc. cause personnel that can not be directly entered so that vibrating spear can not flexible operating.
Due to the good fluidity of self-compacting concrete, in casting process, can exist according to high-altitude cast concrete grout
Aggregate and cement mortar separation, lead to more bleeding, are deposited on bottom so as to lower part coarse-fine aggregate separation occur, cement mortar is more
Ground causes concrete strength to be clearly present difference with specific strength with laboratory's standard, when particularly top slurry is excessive on top
Have larger contraction.This then shows concrete and the possibility being detached from occurs with top plate in the steel case of mixing girder construction.Together
When, it is influenced by stiffener in box beam, particularly the influence of sash plate, inside is caused to equally exist gas discharge not
Freely, horizontal strength plate is concentrated in below vertical plate joint face, equally also resulting in concrete and being detached with steel plate.
Invention content
It is an object of the present invention to overcome the deficiencies in the prior art, present in existing hybrid beam work progress
Problem provides a kind of steel-concrete mixing girder construction suitable for self-compacting concrete cast, and the structure is both in view of structure
Stress need, while again can to avoid self-compacting concrete air entrapment can not discharge in flow process the problem of, it is more important
Be can ensure self-compacting concrete be not in casting process caused by pulp separation intensity it is uneven, so as to protect
Demonstrate,prove structure safety.
In order to realize above-mentioned target, the present invention proposes following technical solution：
The present invention proposes a kind of steel-concrete mixing girder construction suitable for self-compacting concrete cast, that it changes
The grid mode of thinking that conventional Steel Structural Design uses has used skew crossing type stiffener, the mode of arranged crosswise, as mixed instead
Solidifying native flowing platform is assisted position needed for self-compacting concrete arrival rather than is directly poured into a mould using eminence borrow pumping line, kept away
Exempt from the sharp of aggregate to splash, so as to avoid the separation of concrete composition well, thus be equally applicable to similar applied
Other concrete cast of work space limitation.
Steel-concrete mixing girder construction provided by the invention suitable for self-compacting concrete cast, including steel case, first
Oblique stiffener group, the second oblique stiffener group；
The steel case is mutually overlapped by polylith steel case periphery steel plate and formed, and the first oblique stiffener group and second are set in steel case
Oblique stiffener group；
The the first oblique stiffener group and the second oblique stiffener group set in the steel case is oblique angle arrangement；It is described
First oblique stiffener group and the second oblique stiffener group are front and rear in steel case to be arranged at intervals, and the first oblique stiffener group successively
Inclined direction with the second oblique stiffener group is mirror image each other；
The first oblique stiffener group include several sequentially connected first oblique stiffeners, and it is several first it is oblique plus
It is sequentially connected between strength plate and forms broken line type structure；It is oblique that the second oblique stiffener group includes several sequentially connected second
Stiffener, and be sequentially connected between the second oblique stiffener and form broken line type structure；Adjacent first of oblique angle arrangement is oblique
The X-type cross structure of error bit is spatially presented to stiffener and the second oblique stiffener.
In the present invention, when the first oblique stiffener and the second oblique stiffener as self-compacting concrete to pour into a mould
Interim trickling platform, to realize self-compacting concrete diagonally stiffener (the first oblique stiffener or the second oblique stiffener)
It flows and enters different spatial, that is, self-compacting concrete flows downward along the center of oblique stiffener, works as flowing
It can be flowed, and fall on the oblique of both sides to two side directions of oblique stiffener to the junction of oblique stiffener and steel case periphery steel plate
On stiffener, the path that wherein self-compacting concrete flowing is passed through is concrete flow path.
Further, the both ends of the first oblique stiffener and the second oblique stiffener in the longitudinal direction offer avris row
Stomata, the channel that the space to be left when being overlapped with steel case periphery steel plate is vertically discharged collectively as lower part bubble.
Self-compacting concrete flows from top to bottom along concrete flow path, can realize that concrete is filled from bottom to top,
Lower gas can also be discharged to the top of oblique stiffener simultaneously, and be discharged by gas vent.
Compared with prior art, the beneficial effects of the present invention are：
The present invention is by changing the reinforcing structure of checkering used in the steel case interior design in conventional toughened internal stress
Form, employ it is oblique put more energy into, realize concrete in casting process, basicly stable situation kept in the composition of concrete
Under, avoid existing straight panel put more energy into caused by gas can not discharge and there are interior void be topic, it is possible to avoid steel plate
Unbalance stress and the risk of internal corrosion.
The harden structure of putting more energy into that the present invention is arranged by diagonal cross provides self-compacting concrete flowing platform, avoids
The pulp separation for splashing influence is rushed in concrete pouring in vertically clamped moulds, ensure that concrete performance uniformity；Due to oblique stiffener and side
Steel plate overlap joint is longitudinal direction, substitutes part pin or makes up pin stress defect, improves structure stress, avoid existing use
The horizontal strength plate of large area opens the problem of manhole personnel enter the difficulty of construction of welding and steel plate excessive trepanning, it can be achieved that side is welded
It connects, while by the supporting role of its dead weight, the positioning and processing being also convenient in its process.
Structure type provided by the invention cannot be only used for mixing girder construction, be equally applicable to that narrow space, but deep
Spend the cast of big steel case inner concrete.
Description of the drawings
Fig. 1 is the layout drawing of the steel-concrete mixing girder construction suitable for self-compacting concrete cast；
Fig. 2 is the layout drawing of conventional toughened internal stress steel box structure.
Reference sign
1 steel case periphery steel plate
2 inside vertical stiffeners
3 inside sash plates
4 gas vents
5 manholes
6 steel case periphery steel plates
7 first oblique stiffeners
8 second oblique stiffeners
9 avris gas vents
10 concrete flow paths
Specific embodiment
Below in conjunction with specific embodiment and its attached drawing to steel provided by the invention suitable for self-compacting concrete cast-
The technical solution of concrete composite beam structure and design method is described further.With reference to following explanation, advantages of the present invention and
Feature will be apparent from.
It should be noted that the embodiment of the present invention has preferable implementation, it is not to any type of limit of the present invention
It is fixed.The combination of technical characteristic or technical characteristic described in the embodiment of the present invention is not construed as isolated, they can
Reach superior technique effect to be combined with each other.The range of the preferred embodiment for the present invention can also include other reality
It is existing, and this should be understood by person of ordinary skill in the field of the embodiment of the present invention.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.Institute that is shown here and discussing
Have in example, any occurrence should be construed as merely illustrative, not as restriction.Therefore, exemplary embodiment
Other examples can have different values.
The attached drawing of the present invention is using very simplified form and using non-accurate ratio, only to convenient, apparent
Ground aids in illustrating the purpose of the embodiment of the present invention, is not to limit the enforceable qualifications of the present invention.The modification of any structure,
The change of proportionate relationship or the adjustment of size, in the case where not influencing the effect of the invention that can be generated and the purpose that can reach,
It should fall in the range of disclosed technology contents can be covered.And the identical label appeared in each attached drawing of the present invention
Identical feature or component are represented, can be applied in different embodiments.
As shown in Figure 1, the steel-concrete mixing girder construction provided by the invention suitable for self-compacting concrete cast, packet
Include steel case, the first oblique stiffener group, the second oblique stiffener group.Wherein, steel case is mutually overlapped by polylith steel case periphery steel plate 6
It forms；The first oblique stiffener group and the second oblique stiffener group are set in steel case.
In the present invention, the first oblique stiffener group and the second oblique stiffener group set in steel case is not horizontal or vertical
Arrangement, but oblique angle arrangement.Specifically, the first oblique stiffener group and the second oblique stiffener group are front and rear in steel case
It is arranged at intervals successively, and the inclined direction of the first oblique stiffener group and the second oblique stiffener group is mirror image each other；Into one
Step, the broken line type structure that the first oblique stiffener group is formed for several sequentially connected first oblique stiffeners 7, second it is oblique plus
The broken line type structure that strength plate group is formed for several sequentially connected second oblique stiffeners 8.Oblique angle arrangement is adjacent as a result,
The first oblique 7 and second oblique stiffener 8 of stiffener the X-type cross structure of error bit is spatially presented.
In the present invention, the first oblique 7 and second oblique stiffener 8 of stiffener as self-compacting concrete pouring into a mould
When interim trickling platform, to realize self-compacting concrete, diagonally (the first oblique stiffener 7 or the second is oblique to put more energy into stiffener
Plate 8) it flows and flows downward into different spatial, that is, self-compacting concrete along the center of oblique stiffener, when
Flowing to the junction of oblique stiffener and steel case periphery steel plate 6 can flow, and fall on two to two side directions of oblique stiffener
On the oblique stiffener of side, the path that wherein self-compacting concrete flowing is passed through is concrete flow path 10.Such as Fig. 1 institutes
Show, direction shown in arrow is concrete flow path 10；Wherein, self-compacting concrete flows before this along unidirectional arrow direction,
Then it is flowed along bidirectional oblique arrow direction.
Further, the both ends of the first oblique 7 and second oblique stiffener 8 of stiffener in the longitudinal direction offer avris
Gas vent 9, the channel that the space to be left when being overlapped with steel case periphery steel plate 6 is vertically discharged collectively as lower part bubble.
Self-compacting concrete flows from top to bottom along concrete flow path 10, can realize that concrete is filled out from bottom to top
It fills, while lower gas can also be discharged to the top of oblique stiffener, and pass through gas vent 9 and discharge.
Fig. 2 is the layout drawing of conventional toughened internal stress steel box structure.As shown in Figure 1, conventional toughened internal stress steel case includes
Steel case periphery steel plate 1, inside vertical stiffener 2, inside sash plate 3；Wherein, the overlap joint of polylith steel case periphery steel plate 1 is formed
Steel case sets the inside vertical stiffener 2 being vertically distributed and the inside sash plate 3 of horizontal distribution in steel case.Further, inside
Gas vent 4 is offered on vertical stiffener 2, inside sash plate 3, the row of concrete bubble can be realized by gas vent 4
Go out；Concrete is poured into a mould by manhole 5.
Compared with conventional toughened internal stress steel box structure, the present invention is by changing inside the steel case in conventional toughened internal stress
Design use checkering reinforcing structure form, employ it is oblique put more energy into, realize concrete in casting process, in concrete
Composition keep basicly stable in the case of, avoid existing straight panel put more energy into caused by gas can not discharge and there are interior voids
It is topic, avoids the risk of the possible unbalance stress of steel plate and internal corrosion.
The harden structure of putting more energy into that the present invention is arranged by diagonal cross provides self-compacting concrete flowing platform, avoids
The pulp separation for splashing influence is rushed in concrete pouring in vertically clamped moulds, ensure that concrete performance uniformity；Due to oblique stiffener and side
Steel plate overlap joint is longitudinal direction, substitutes part pin or makes up pin stress defect, improves structure stress, avoid existing use
The horizontal strength plate of large area opens the problem of manhole personnel enter the difficulty of construction of welding and steel plate excessive trepanning, it can be achieved that side is welded
It connects, while by the supporting role of its dead weight, the positioning and processing being also convenient in its process.
Structure type provided by the invention cannot be only used for mixing girder construction, be equally applicable to that narrow space, but deep
Spend the cast of big steel case inner concrete.
Foregoing description is only the description to present pre-ferred embodiments, is not any restriction to the scope of the invention.Appoint
Any change or modification what those skilled in the art makes according to the technology contents of the disclosure above should all regard
For equivalent effective embodiment, the range of technical solution of the present invention protection is belonged to.
Claims (1)
1. a kind of steel-concrete mixing girder construction suitable for self-compacting concrete cast, it is characterised in that：Including steel case,
One oblique stiffener group, the second oblique stiffener group；
The steel case is made of polylith steel case periphery steel plate (6) mutually overlap joint, and the first oblique stiffener group and second are set in steel case
Oblique stiffener group；
The the first oblique stiffener group and the second oblique stiffener group set in the steel case is oblique angle arrangement；Described first
Oblique stiffener group and the second oblique stiffener group are front and rear in steel case to be arranged at intervals successively, and the first oblique stiffener group and the
The inclined direction of two oblique stiffener groups is mirror image each other；
The first oblique stiffener group include several sequentially connected first oblique stiffeners (7), and it is several first it is oblique plus
It is sequentially connected between strength plate (7) and forms broken line type structure；The second oblique stiffener group includes several sequentially connected second
Oblique stiffener (8), and be sequentially connected between the second oblique stiffener (8) and form broken line type structure；The phase of oblique angle arrangement
The X-type cross structure of error bit is spatially presented in adjacent the first oblique stiffener (7) and the second oblique stiffener (8)；
Facing when the first oblique stiffener (7) and the second oblique stiffener (8) as self-compacting concrete to pour into a mould
When trickle platform；Self-compacting concrete is along oblique stiffener (the first oblique stiffener (7) or the second oblique stiffener (8))
Center flows downward, when the junction for flowing to oblique stiffener and steel case periphery steel plate (6) can be to the both sides of oblique stiffener
Direction is flowed, and is fallen on the oblique stiffener of both sides, and the path that wherein self-compacting concrete flowing is passed through is flowed for concrete
Path (10)；
The first oblique stiffener (7) and the both ends of the second oblique stiffener (8) in the longitudinal direction offer avris row
Stomata (9), the channel that the space to be left when being overlapped with steel case periphery steel plate (6) is vertically discharged collectively as lower part bubble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810076170.6A CN108203921B (en) | 2018-01-26 | 2018-01-26 | Steel-concrete mixed beam structure suitable for self-compaction concrete pouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810076170.6A CN108203921B (en) | 2018-01-26 | 2018-01-26 | Steel-concrete mixed beam structure suitable for self-compaction concrete pouring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108203921A true CN108203921A (en) | 2018-06-26 |
| CN108203921B CN108203921B (en) | 2023-10-13 |
Family
ID=62606529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810076170.6A Active CN108203921B (en) | 2018-01-26 | 2018-01-26 | Steel-concrete mixed beam structure suitable for self-compaction concrete pouring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108203921B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB461722A (en) * | 1935-03-23 | 1937-02-23 | Andrea Ghira | Method for the manufacture of reinforced concrete masts |
| CH580484A5 (en) * | 1974-01-05 | 1976-10-15 | Hug Interlizenz Ag | |
| CN86103217A (en) * | 1985-04-09 | 1987-02-25 | 沃斯特-阿尔派因股份公司 | From the liquid that foaming trend is arranged, remove the equipment of the gentle body of devaporation continuously respectively |
| JPH06167111A (en) * | 1992-11-30 | 1994-06-14 | Ohbayashi Corp | Placing method of highly fluid concrete |
| EP1130165A2 (en) * | 2000-03-03 | 2001-09-05 | Kota A/S | Screed rail |
| CN2854058Y (en) * | 2005-06-07 | 2007-01-03 | 重庆新泰机械有限责任公司 | Drilling mud, gas separator |
| CN101824856A (en) * | 2010-04-21 | 2010-09-08 | 中南大学 | Laywire combination structure for concert buildings |
| CN203188631U (en) * | 2012-07-11 | 2013-09-11 | 上海建工五建集团有限公司 | Guiding device suitable for pouring steel pipe concrete structure and steel pipe concrete structure |
| CN203609926U (en) * | 2013-10-14 | 2014-05-28 | 承德江钻石油机械有限责任公司 | Separating device |
| CN104088281A (en) * | 2014-07-17 | 2014-10-08 | 中国水利水电第十四工程局有限公司 | Buffering device for vertical concrete conveyance |
| CN204151686U (en) * | 2014-09-25 | 2015-02-11 | 中铁大桥局集团有限公司 | A kind of deceleration type tumbling barrel for filling concrete |
| CN204960332U (en) * | 2015-07-30 | 2016-01-13 | 中建七局安装工程有限公司 | Conveyer pipe is pour perpendicularly to concrete |
| CN107060322A (en) * | 2017-04-15 | 2017-08-18 | 浙江兴远建设有限公司 | Concreting die carrier structure |
| CN107217849A (en) * | 2017-06-22 | 2017-09-29 | 青岛林川工程技术咨询有限公司 | A kind of concrete continuous blanking is segmented placing installation |
| CN107386090A (en) * | 2017-06-09 | 2017-11-24 | 中铁二院工程集团有限责任公司 | The more chamber box girder with corrugated steel webs constructions of combined type |
| CN207846195U (en) * | 2018-01-26 | 2018-09-11 | 四川公路桥梁建设集团有限公司大桥工程分公司 | Steel-concrete suitable for self-compacting concrete cast mixes girder construction |
-
2018
- 2018-01-26 CN CN201810076170.6A patent/CN108203921B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB461722A (en) * | 1935-03-23 | 1937-02-23 | Andrea Ghira | Method for the manufacture of reinforced concrete masts |
| CH580484A5 (en) * | 1974-01-05 | 1976-10-15 | Hug Interlizenz Ag | |
| CN86103217A (en) * | 1985-04-09 | 1987-02-25 | 沃斯特-阿尔派因股份公司 | From the liquid that foaming trend is arranged, remove the equipment of the gentle body of devaporation continuously respectively |
| JPH06167111A (en) * | 1992-11-30 | 1994-06-14 | Ohbayashi Corp | Placing method of highly fluid concrete |
| EP1130165A2 (en) * | 2000-03-03 | 2001-09-05 | Kota A/S | Screed rail |
| CN2854058Y (en) * | 2005-06-07 | 2007-01-03 | 重庆新泰机械有限责任公司 | Drilling mud, gas separator |
| CN101824856A (en) * | 2010-04-21 | 2010-09-08 | 中南大学 | Laywire combination structure for concert buildings |
| CN203188631U (en) * | 2012-07-11 | 2013-09-11 | 上海建工五建集团有限公司 | Guiding device suitable for pouring steel pipe concrete structure and steel pipe concrete structure |
| CN203609926U (en) * | 2013-10-14 | 2014-05-28 | 承德江钻石油机械有限责任公司 | Separating device |
| CN104088281A (en) * | 2014-07-17 | 2014-10-08 | 中国水利水电第十四工程局有限公司 | Buffering device for vertical concrete conveyance |
| CN204151686U (en) * | 2014-09-25 | 2015-02-11 | 中铁大桥局集团有限公司 | A kind of deceleration type tumbling barrel for filling concrete |
| CN204960332U (en) * | 2015-07-30 | 2016-01-13 | 中建七局安装工程有限公司 | Conveyer pipe is pour perpendicularly to concrete |
| CN107060322A (en) * | 2017-04-15 | 2017-08-18 | 浙江兴远建设有限公司 | Concreting die carrier structure |
| CN107386090A (en) * | 2017-06-09 | 2017-11-24 | 中铁二院工程集团有限责任公司 | The more chamber box girder with corrugated steel webs constructions of combined type |
| CN107217849A (en) * | 2017-06-22 | 2017-09-29 | 青岛林川工程技术咨询有限公司 | A kind of concrete continuous blanking is segmented placing installation |
| CN207846195U (en) * | 2018-01-26 | 2018-09-11 | 四川公路桥梁建设集团有限公司大桥工程分公司 | Steel-concrete suitable for self-compacting concrete cast mixes girder construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108203921B (en) | 2023-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210040741A1 (en) | Design and Rapid Construction Method for Flush Assembly of the Prefabricated Steel Beam and the Floor Slab | |
| CN106049691B (en) | A kind of fully-prefabricated assembled steel tube confinement frame joint | |
| CN102322142B (en) | Construction method for 45-DEG-inclined long-overhanging reinforced concrete structure project | |
| CN106284106B (en) | A kind of double curvature arch bridge arch compound sleeve arch reinforcement means | |
| CN106930194B (en) | Inter-tie and pier stud global formation construction method and template used holder | |
| CN206408836U (en) | Weld stirrup steel rib beam column | |
| CN102839601A (en) | Fixed connection structure for steel pier column and cushion cap of portal rigid frame overbridge and construction method of fixed connection structure | |
| CN106049289B (en) | Bailey beam make-shift bridge transform the construction method of steel reinforced concrete combination permanent bridge as | |
| CN206873730U (en) | A kind of steel bar truss floor structure | |
| CN103572784B (en) | A kind of super thick raft board post poured band formwork bracing system and construction method thereof | |
| CN207846195U (en) | Steel-concrete suitable for self-compacting concrete cast mixes girder construction | |
| CN201924289U (en) | Bracket structure for 0# block of high-pier long-span continuous rigid frame bridge | |
| CN105421229B (en) | A kind of multi-block main cable saddle structure | |
| CN103938871B (en) | A kind of construction method adopting the steel core concrete column bonded prestress frame beam structure of reinforced concrete ring beam joint | |
| CN108385886A (en) | Grid beams floor construction and construction method | |
| CN105064502B (en) | Using the regeneration concrete bean column node and construction method of cross-shaped profile steel plate weld edge of a wing stiffener | |
| CN105604197B (en) | A kind of beam column steel pipe column barrel structure | |
| CN109869153A (en) | The whole of rapid construction vertical shaft lining cutting promotes cantilever form device and construction method | |
| CN108203921A (en) | Suitable for the steel-concrete mixing girder construction and design method of self-compacting concrete cast | |
| CN108193600A (en) | Improve the method for long-span continuous rigid-framed bridge cracking resistance and composite structure box beam | |
| CN108221704A (en) | A kind of bridge four beam type I-shaped steel-concrete composite beams and construction method | |
| CN210343359U (en) | Prevent pressing of tunnel invert uplift and float structure | |
| CN108222265A (en) | A kind of multidirectional super large steel reinforced concrete conversion layer node construction engineering method | |
| CN208088095U (en) | Beams of concrete midspan closing structure | |
| CN110359353A (en) | A kind of Steel-concrete Combined Beam Structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240221 Address after: 610041 nine Xing Xing Road 12, hi tech Zone, Sichuan, Chengdu Patentee after: Sichuan Road and Bridge (Group) Co., Ltd. Country or region after: China Address before: No. 129, Jinli West Road, Qingyang District, Chengdu, Sichuan 610071 Patentee before: Sichuan Road and Bridge (Group) Co., Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |