CN106758840A - Gradient concreting method - Google Patents
Gradient concreting method Download PDFInfo
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- CN106758840A CN106758840A CN201611236169.2A CN201611236169A CN106758840A CN 106758840 A CN106758840 A CN 106758840A CN 201611236169 A CN201611236169 A CN 201611236169A CN 106758840 A CN106758840 A CN 106758840A
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
Abstract
The invention discloses a kind of gradient concreting method, including：The casting area of outer concrete and interior layer concrete is divided in the good steel reinforcement cage of colligation；Gradient concrete multiple equilibrium cloth digital control system is laid in the top of the steel reinforcement cage；Ground floor outer concrete is poured with the first floor height in the steel reinforcement cage；Layer concrete in second layer outer concrete and ground floor is poured with the second floor height simultaneously by order clockwise or counterclockwise；Continue in that same order with the second floor height while pouring the outer concrete and interior layer concrete to default height；Interior layer concrete is poured with the concordant outer concrete.The gradient concreting method that the present invention is provided can make concrete delamination of different nature and segmentation is poured, be highly suitable for it is various need using different performance concrete pour occasion, and the flushing between different labels concrete can be effectively prevented, is improve and is poured product quality.
Description
Technical field
The present invention relates to bridge main body structure construction field, more particularly to a kind of gradient concreting method.
Background technology
The Sarasota concrete king-post of cable-stayed bridge generally uses gradient concrete structure, and gradient concrete structure refers to king-post
Interior outside uses the composite concrete structure of different concrete mixs, the i.e. internal layer of Sarasota concrete structure still using common
C50 concrete, and outside concrete is then using white perdurable concrete, it is intended to improve the crack resistance of concrete structure, durable
Property and sight.
Gradient concrete as a kind of new concrete structure form, compared with normal concrete, no matter construction work
The various aspects such as skill, construction organization, concrete raw material requirement, plant equipment configuration have larger difference, its technological requirement
Mainly showed with difficulty of construction as follows：
(1) gradient concrete is to quality controls such as cement, coarse aggregate, fine aggregate, fiber, the outer-penetrating agents of concrete raw material
Index is higher compared to the requirement of normal concrete (concrete).
(2) gradient concreting scope is relatively thin, and outside white perdurable concrete holds with the common high-grade concrete in inner side
Easy flushing, influences the pouring quality effect of gradient concrete
(3) because the outside white usual wall thickness of perdurable concrete of gradient concrete is relatively thin, therefore Vibration Technology requirement is non-
Chang Yange.
(4) because the outside white perdurable concrete of gradient concrete uses white cement, surface is after concrete form removal
White is very high to finished product protection requirement to ensure the aesthetic property of concrete surface.
The content of the invention
Based on this, in order to solve at least one problem mentioned above, there is provided a kind of gradient concreting method.
A kind of gradient concreting method, comprises the following steps：
The casting area of outer concrete and interior layer concrete is divided in the good steel reinforcement cage of colligation；
Gradient concrete multiple equilibrium cloth digital control system is laid in the top of the steel reinforcement cage；
Ground floor outer concrete is poured with the first floor height in the steel reinforcement cage；
Second layer outer concrete and ground floor internal layer are poured with the second floor height simultaneously by order clockwise or counterclockwise
Concrete；
Continue in that same order with the second floor height while pouring the outer concrete and interior layer concrete to default
Height；
Interior layer concrete is poured with the concordant outer concrete.
It is described that the second layer is poured with the second floor height simultaneously by order clockwise or counterclockwise wherein in one embodiment
It is as follows the step of layer concrete in outer concrete and ground floor：
The cloth of section is poured outside carry out the second outer concrete on the ground floor outer concrete first；
The cloth of section, same phase are poured outside carry out the second outer concrete on the ground floor outer concrete second
Pouring section outward adjacent to described first poured in first of layer concrete in ground floor the cloth of section, makes the second layer outer layer
Layer concrete is keeping pouring in the case that section is interlocked synchronizing continuous cloth in concrete and ground floor.
Further, after the completion of the cloth material process of every layer of interior layer concrete and outer concrete, the internal layer that first vibrates is mixed
Solidifying soil, then the outer concrete that vibrates.
Specifically, spacing of vibrating when vibrating, vibrating spear is inserted under two neighbouring layer concretes for 50~60cm
5~10cm in layer concrete.
Specifically, the diameter no more than 50mm of the vibrating spear that the outer concrete that vibrates is used.
Further, a diameter of 30mm of the vibrating spear.
Wherein in one embodiment, the thickness of the outer concrete is 28~32cm.
Wherein in one embodiment, a height of 8~10cm of ground floor, a height of 20~60cm of the second layer.
Wherein in one embodiment, the outer concrete casting area of the steel reinforcement cage and the pouring area of interior layer concrete
Domain is separated by the reinforced mesh of some interconnections, is overlapped in edge with predetermined overlapping widths between the reinforced mesh, institute
The mesh diameter for stating bar-mat reinforcement is 11~15mm.
Further, the overlapping in the corner region of the steel reinforcement cage and reinforced mesh sets to surround and forms predetermined space
Dismountable steel plate, the dismountable steel plate is in concreting as concrete distributing passage and the passage that vibrates.
Wherein in one embodiment, the outer concrete is white fiber perdurable concrete, the interior layer concrete
It is common high-grade concrete.
Wherein in one embodiment, the gradient concrete multiple equilibrium cloth digital control system includes concrete delivery pipe, concrete pump, concrete
Cloth tube, cloth system control centre and many transfer piping shifters, the concrete delivery pipe are connected to by the concrete pump
On the input of many transfer piping shifters, the concrete cloth tube is connected to the defeated of many transfer piping shifters
Go out on end, the cloth system control centre electrically connects with many transfer piping shifters.
Further, many transfer piping shifters include：
Fixed mount, the mouth of pipe and several discharging mouths of pipe, the charging mouth of pipe and discharge nozzle are fed for providing at least one
Separated with a cavity between mouthful；
Adjustable shelf, is movably arranged in the cavity, and it is right one by one with the discharging mouth of pipe that the adjustable shelf fixes several
The connecting pipe answered, docks to turn on the charging mouth of pipe and the discharging when any connecting pipe with the corresponding discharging mouth of pipe
During the mouth of pipe, other connecting pipes and corresponding discharging mouth of pipe mutual dislocation；
Switchable pump, for driving the adjustable shelf to change position in the cavity, with realize any connecting pipe with
Corresponding discharging mouth of pipe docking.
Specifically, setting the charging mouth of pipe and four discharging mouths of pipe, and four are set on the adjustable shelf
Root and the one-to-one connecting pipe of the discharging mouth of pipe.
The present invention compared with prior art, at least with following advantages：
1st, the method that the present invention is provided makes concrete delamination of different nature and segmentation is poured, and is highly suitable for various
Need to pour occasion using different performance concrete.
2nd, the method that the present invention is provided is interlocked synchronous when pouring using outer concrete and internal layer concreting section
Form is poured, the flushing between different labels concrete is effectively prevented, is improve and is poured product quality.
3rd, the coagulation in method each section/region that steel reinforcement cage is limited when gradient concrete is poured that the present invention is provided
Linking between soil more preferably, will not plan a successor, for the quality of whole gradient concrete because of the corner location of steel reinforcement cage
Lifting has actively impact.
Brief description of the drawings
Fig. 1 is one embodiment of the invention gradient concreting method flow chart；
Fig. 2 is one embodiment of the invention gradient concrete structure schematic diagram；
Fig. 3 is reinforced mesh coincident configurations schematic diagram in one embodiment of the invention；
Fig. 4 is the structural representation of gradient concrete multiple equilibrium cloth digital control system in one embodiment of the invention；
Fig. 5 is the operation principle schematic diagram of many transfer piping shifters in one embodiment of the invention；
Fig. 6 is the particular flow sheet of step S400 in one embodiment of the invention；
Fig. 7 is that one kind pours view in step S400 in one embodiment of the invention；
Fig. 8 is that another kind pours view in step S400 in one embodiment of the invention；
Fig. 9 is that another pours view in step S400 in one embodiment of the invention.
Specific embodiment
The present invention is further described with exemplary embodiment below in conjunction with the accompanying drawings, identical label wherein in accompanying drawing
All refer to identical part.Additionally, if it is known that the detailed description of technology is for showing the invention is characterized in that unnecessary
, then omitted.
As shown in figure 1, the gradient concreting method of one embodiment of the invention, including step S100, S200, S300,
S400, S500 and S600, specially：
Step S100：The casting area of outer concrete and interior layer concrete is divided in the good steel reinforcement cage of colligation.Such as
Shown in Fig. 2 and Fig. 3, if the outer concrete of steel reinforcement cage 3000 pour the casting area of 1000 regions and interior layer concrete 2000 by
The dry reinforced mesh 4000 being connected with each other separates, and reinforced mesh 4000 is generally the less sheet of size, for larger coagulation
The Sarasota of soil structure, such as cable-stayed bridge, then must one by one connect into large stretch of and and then form reinforcing bar by numerous reinforced mesh 4000
Cage 3000, and often intensity is smaller region between reinforced mesh 4000, the concrete of ectonexine easily breaks through the reinforcing bar
, there is flushing phenomenon in the stop of mesh sheet 4000.Therefore in order to ensure the intensity in these regions, reinforced mesh 4000 is used with predetermined
Overlapping widths form the mode of overlay region 4100 in edge.Preferably, the mesh diameter of reinforced mesh 4000 is 11~15mm.
Further, since also tending to the presence of corner region in the casting area for being formed, these region stress are complicated, therefore to ensure bar-mat reinforcement
The quality of corner region concrete in piece compact district, casting area, the interim steel plate that increases does in the installation process of reinforced mesh 4000
It is cloth passage and the passage that vibrates, steel plate can also directly use angle steel, i.e., in the corner region of steel reinforcement cage 3000 and reinforced mesh
Overlapping set to surround and form the dismountable steel plate of predetermined space, the dismountable steel plate is in concreting as concrete
Cloth passage and the passage that vibrates, gradually remove with casting process.
Step S200：Gradient concrete multiple equilibrium cloth digital control system is laid in the top of steel reinforcement cage 3000.Gradient concrete multiple spot
Balance cloth digital control system is the equipment for comprehensively exporting concrete material according to predetermined instruction, as shown in figure 4, including concrete delivery pipe
30th, concrete pump 20, concrete cloth tube 50, cloth system control centre 40 and many transfer piping shifters 10 etc., art technology
Personnel will appreciate that structure stand 70 or other auxiliary equipments also including correlation, such as control room 60 are not added with repeating herein.
Wherein concrete delivery pipe 30 is connected on the input of many transfer piping shifters 10 by the concrete pump 20, concrete cloth tube
50 are connected in the output end of many transfer piping shifters 10, and cloth system control centre 40 cuts with many conveyance conduits
Changing device 10 is electrically connected.Preferably, as shown in figure 5, many transfer piping shifters 10 include fixed mount 100, the and of adjustable shelf 200
Switchable pump 300, wherein fixed mount 100 are used to provide at least one charging mouth of pipe 110 and several discharging mouths of pipe 120, therein
Separated with a cavity 130 between the charging mouth of pipe 110 and the discharging mouth of pipe 120.Adjustable shelf 200 is then movably arranged on above-mentioned cavity 130
It is interior, adjustable shelf 200 fix several and discharging the one-to-one connecting pipe 210 of the mouth of pipe 120, when any connecting pipe 210 with it is relative
The discharging mouth of pipe 120 answered dock with turn on charging the mouth of pipe 110 and discharging the mouth of pipe 120 when, other connecting pipes 210 with it is corresponding
The discharging mutual dislocation of the mouth of pipe 120.Preferably, as shown in fig. 6, setting a charging mouth of pipe and four discharging mouths of pipe, and activity
Four are set on frame with the discharging one-to-one connecting pipe of the mouth of pipe.Switchable pump 300 is used to drive adjustable shelf 200 in cavity 130
Change position, to realize that any connecting pipe 210 is docked with the corresponding discharging mouth of pipe 120.Wherein, switchable pump 300 can be selected
Hydraulic power unit, the hydraulic power unit includes hydraulic jack 310 and is set in hydraulic jack 310 and by the hydraulic jack
310 telescopic pistons 320 for driving, wherein hydraulic jack 310 is fixedly connected with fixed mount 100, and telescopic piston 320 then with activity
Frame 200 is fixedly connected.
Step S300：Ground floor outer concrete is poured with the first floor height in steel reinforcement cage 3000.Due to outer concrete
Pour requirement, during in order to prevent from pour flushing higher than interior layer concrete, first carry out pouring for outer concrete ground floor,
A height of first floor height of LIFT of ground floor outer concrete, the preferred a height of 8~10cm of ground floor.Completion ground floor to be poured
Pouring for other LIFTs is carried out after outer layer again.Pouring for ground floor outer concrete is not required to be vibrated.
Step S400：Second layer outer concrete and the are poured with the second floor height simultaneously by order clockwise or counterclockwise
Layer concrete in one layer.Usual concreting is all that progressively segmentation is carried out, it is necessary to according to certain sequential deployment that pours, therefore
Pouring for layer concrete in second layer outer concrete and ground floor is carried out according to order clockwise or counterclockwise, in this gradient
In concreting method, in order to ensure the respective quality of inside and outside LIFT, flushing is prevented, the good of inside and outside LIFT is ensured again
It is good to combine, therefore pouring for layer concrete in second layer outer concrete and ground floor is carried out with the second floor height simultaneously.Preferably,
A height of 20~the 60cm of the second layer.
As a preferred scheme, as shown in Fig. 6~9, by order clockwise or counterclockwise with the second floor height simultaneously
The step of pouring layer concrete 20 in second layer outer concrete 10 and ground floor is specific as follows：
S410：As shown in fig. 6, carrying out being poured outside the first of the second outer concrete 1200 on ground floor outer concrete
The cloth of section 1210.All carry out paragraph by paragraph per pouring for layer concrete, each section in every layer keeps certain and pour width and length
Degree.
S420：As shown in fig. 7, carrying out the second outer concrete on the ground floor outer concrete that step S300 is obtained
The cloth of section 1220 is poured outside the second of 1200, while pouring section 1210 carries out layer concrete in ground floor outward adjacent to first
The cloth of section 2110 is poured in the first of 2100, layer concrete 2100 in second layer outer concrete 1200 and ground floor is being protected
Hold to pour in the case that section is interlocked and synchronize continuous cloth.Similarly carry out other staggeredly synchronous clothes for pouring section, such as Fig. 8
The region that middle dotted line is represented, pours and second layer outer layer pouring while the second outer concrete 1200 the 3rd pours section 1230
The cloth for pouring section 2120 in the adjacent ground floor of section 1220 in layer concrete 2,100 second is poured outside concrete 1,200 second, according to
It is secondary to analogize until layer concrete 2100 is poured to finish and (finally only poured in final stage in the second outer concrete 1200 and first
Layer concrete 2000).
When each layer of corner is poured into, first pour outer concrete 1000 as shown in figure 9, still ensuring that, then pour
Interior layer concrete 2000 is built, by taking above-mentioned gradient concrete multiple equilibrium cloth digital control system as an example, it is used with four pipeline discharge nozzles
Mouthful many transfer piping shifters, pour section 1210 ' and the when a certain some face of layer outer concrete 1,000 first is completed
After two pour the pouring of section 1220 ', by the described many transfer piping shifters in gradient concrete multiple equilibrium cloth digital control system
10 changes that angle is carried out by the control of the cloth system control centre 40, are then operated concrete cloth tube 50 by artificial
It is transported to specified location.By taking the casting process of outer concrete as an example, when needing to pour section 1220 ', will manually be located at
Two concrete cloth tubes 50 in front of casting direction are moved in the region where pouring section 1222 ', and section is poured when described
After 1220 ' complete to pour, two concrete cloth tubes 50 for being located at casting direction rear are moved to again manually and pour section
In region where 1230 ', and control many transfer piping shifters 10 of taking advantage of a situation are turned to and the described four concrete cloth
Expects pipe 50 is concordant, then drives many transfer piping shifters 10 to continue to move in the predetermined direction.As can be seen here, it is described
Concrete cloth tube 50 alignment will pour when pouring section 1221 ', while pouring section 1222 ' on the new face to be poured of alignment
And cloth, and the corresponding concrete cloth tube of interior layer concrete 2000 still pours the corresponding internal layer in face and pours cloth in section 2110 ' in original
Material, next pours section while pouring interior layer concrete 2,000 second and pouring section 2120 ' and outer concrete 1000 the 3rd again
1230 ' cloth and pour, keep in layer concrete 2000 and the cloth of outer concrete 1000 pour section and interlock, afterwards again with this
Principle completes the concreting operation in other new faces to be poured.Interlock what is poured using interior layer concrete and outer concrete
Method can further ensure that the flushing of ectonexine difference concrete, so that it is guaranteed that the quality of whole gradient concrete product.
Step S500：Continue in that same order with the second floor height while pouring the outer concrete and internal layer coagulation
Soil is to default height.Repeat the operation of step S400, be successively poured into the height of whole building set in advance.
Step S600：Interior layer concrete is poured with the concordant outer concrete.It is poured into finally when according to step S500
At one layer, outer concrete has been poured and finished, because ground floor outer concrete is first poured before, therefore outer concrete with
Interior layer concrete differs a certain distance (distance is less than the first floor height), finally pours interior layer concrete until interior layer concrete
It is concordant with outer concrete.Preferably, the thickness of outer concrete is 28~32cm, is preferably selected 30cm.Additionally, mixed in selection
During solidifying soil, outer concrete is white fiber perdurable concrete in gradient concrete, and interior layer concrete is mixed for common high grade
Solidifying soil, can ensure good construction quality on the premise of relatively low engineering cost is spent.
Preferably, in every layer after the completion of the cloth material process of layer concrete and outer concrete, first vibrate interior layer concrete, then
Vibrate outer concrete.Preferably using the 50~60cm of spacing that vibrates, when vibrating, vibrating spear is inserted into neighbouring two-layer and is mixed
5~10cm in the lower-layer concrete of soil is coagulated, such as when the second outer concrete is vibrated, it is necessary to be from floor height by vibrating spear
The upper surface of second outer concrete of 30cm is through the second outer concrete and is inserted into 10cm in the first outer concrete, that is, shake
The insertion depth of tamper is 40cm.Everywhere is vibrated to insert soon and is pulled out slowly, and the concrete that vibrates at this no longer declines, and bubble no longer emits
Go out, untill bleeding occurs in surface.Usual outer concrete wall thickness is relatively thin, to ensure vibration compacting and not influenceing ectonexine coagulation
Native flushing, the diameter no more than 50mm of the vibrating spear that the outer concrete that vibrates is used, preferably from 30mm.
Preferably, in gradient concreting process, the two kinds of height of concreting in outside in strict control are not only needed
Degree (it is required that control is in 60cm or so), will also strictly control two kinds of balanced risings of the respective horizontal plane of concrete, prevent flushing, shadow
Ring the overall mass effect of concrete.
Although having been illustrated with some exemplary embodiments of the invention above, those skilled in the art will manage
Solution, in the case where principle of the invention or spirit is not departed from, can make a change to these exemplary embodiments, of the invention
Scope is limited by claim and its equivalent.
Claims (14)
1. a kind of gradient concreting method, it is characterised in that comprise the following steps：
The casting area of outer concrete and interior layer concrete is divided in the good steel reinforcement cage of colligation；
Gradient concrete multiple equilibrium cloth digital control system is laid in the top of the steel reinforcement cage；
Ground floor outer concrete is poured with the first floor height in the steel reinforcement cage；
Second layer outer concrete and ground floor internal layer coagulation are poured with the second floor height simultaneously by order clockwise or counterclockwise
Soil；
Continue in that same order with the second floor height while pouring the outer concrete and interior layer concrete to default height
Degree；
Interior layer concrete is poured with the concordant outer concrete.
2. gradient concreting method according to claim 1, it is characterised in that described by clockwise or counterclockwise
The step of order pours layer concrete in second layer outer concrete and ground floor simultaneously with the second floor height is as follows：
The cloth of section is poured outside carry out the second outer concrete on the ground floor outer concrete first；
The cloth of section is poured outside carry out the second outer concrete on the ground floor outer concrete second, while adjacent to
Section is poured outside described first poured in first of layer concrete in ground floor the cloth of section, makes the second layer outer layer coagulation
Layer concrete is keeping pouring in the case that section is interlocked synchronizing continuous cloth in soil and ground floor.
3. gradient concreting method according to claim 2, it is characterised in that every layer of interior layer concrete and outer
After the completion of the cloth material process of layer concrete, first vibrate interior layer concrete, then the outer concrete that vibrates.
4. gradient concreting method according to claim 3, it is characterised in that spacing of vibrating is 50~60cm, is shaken
When smashing, vibrating spear is inserted into 5~10cm in the lower-layer concrete of two neighbouring layer concretes.
5. gradient concreting method according to claim 4, it is characterised in that the outer concrete that vibrates is adopted
The diameter of vibrating spear is not more than 50mm.
6. gradient concreting method according to claim 5, it is characterised in that the vibrating spear it is a diameter of
30mm。
7. gradient concreting method according to claim 1, it is characterised in that the thickness of the outer concrete is
28~32cm.
8. gradient concreting method according to claim 1, it is characterised in that a height of 8~10cm of ground floor,
A height of 20~the 60cm of the second layer.
9. gradient concreting method according to claim 1, it is characterised in that the outer concrete of the steel reinforcement cage
The casting area of casting area and interior layer concrete is separated by the reinforced mesh of some interconnections, between the reinforced mesh with
Predetermined overlapping widths are overlapped in edge, and the mesh diameter of the bar-mat reinforcement is 11~15mm.
10. gradient concreting method according to claim 9, it is characterised in that in the corner region of the steel reinforcement cage
The dismountable steel plate for surrounding and forming predetermined space is set with the overlapping of reinforced mesh, and the dismountable steel plate is in concreting
Shi Zuowei concrete distributings passage and the passage that vibrates.
11. gradient concreting methods according to claim 1, it is characterised in that the outer concrete is white
Fiber perdurable concrete, the interior layer concrete is common high-grade concrete.
12. gradient concreting methods according to claim 1, it is characterised in that the gradient concrete multiple equilibrium cloth
Material digital control system includes concrete delivery pipe, concrete pump, concrete cloth tube, cloth system control centre and many transfer piping shifters,
The concrete delivery pipe is connected on the input of many transfer piping shifters by the concrete pump, and the concrete cloth tube connects
It is connected in the output end of many transfer piping shifters, the cloth system control centre switches with many conveyance conduits
Device is electrically connected.
13. gradient concreting methods according to claim 12, it is characterised in that many conveyance conduit switching dresses
Put including：
Fixed mount, for provide at least one feed the mouth of pipe and several discharging mouths of pipe, the charging mouth of pipe and discharging the mouth of pipe it
Between separated with a cavity；
Adjustable shelf, is movably arranged in the cavity, and it is one-to-one with the discharging mouth of pipe that the adjustable shelf fixes several
Connecting pipe, docks to turn on the charging mouth of pipe and the discharging mouth of pipe when any connecting pipe with the corresponding discharging mouth of pipe
When, other connecting pipes and corresponding discharging mouth of pipe mutual dislocation；
Switchable pump, for driving the adjustable shelf to change position in the cavity, with realize any connecting pipe with it is relative
The discharging mouth of pipe answered is docked.
14. gradient concreting methods according to claim 13, it is characterised in that the charging mouth of pipe is set
With four discharging mouths of pipe, and four are set on the adjustable shelf one-to-one described with the discharging mouth of pipe plug into
Pipe.
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| CN107675625A (en) * | 2017-09-05 | 2018-02-09 | 中交二航局第四工程有限公司 | Skin function concrete king-post method for synchronously constructing |
| CN107675626A (en) * | 2017-09-05 | 2018-02-09 | 中交二航局第四工程有限公司 | Skin function concrete king-post and crossbeam synchronization pouring construction method |
| CN108086154A (en) * | 2017-12-19 | 2018-05-29 | 安徽省交通控股集团有限公司 | A kind of gradient function concrete towers rod structure and its construction method |
| CN109081648A (en) * | 2018-11-14 | 2018-12-25 | 兰州理工大学 | A kind of regeneration gradient concrete material and preparation method thereof |
| CN111395766A (en) * | 2020-04-22 | 2020-07-10 | 五冶集团上海有限公司 | Construction method for simultaneously pouring columns, beams and floor slabs in high-temperature environment |
| CN112177001A (en) * | 2020-09-18 | 2021-01-05 | 中国三峡建设管理有限公司 | Method for improving construction efficiency of large-volume concrete pouring by dragging or overturning mold |
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| CN107675626A (en) * | 2017-09-05 | 2018-02-09 | 中交二航局第四工程有限公司 | Skin function concrete king-post and crossbeam synchronization pouring construction method |
| CN108086154A (en) * | 2017-12-19 | 2018-05-29 | 安徽省交通控股集团有限公司 | A kind of gradient function concrete towers rod structure and its construction method |
| CN109081648A (en) * | 2018-11-14 | 2018-12-25 | 兰州理工大学 | A kind of regeneration gradient concrete material and preparation method thereof |
| CN111395766A (en) * | 2020-04-22 | 2020-07-10 | 五冶集团上海有限公司 | Construction method for simultaneously pouring columns, beams and floor slabs in high-temperature environment |
| CN111395766B (en) * | 2020-04-22 | 2023-09-19 | 五冶集团上海有限公司 | Method for simultaneously pouring and constructing column, beam and floor slab in high-temperature environment |
| CN112177001A (en) * | 2020-09-18 | 2021-01-05 | 中国三峡建设管理有限公司 | Method for improving construction efficiency of large-volume concrete pouring by dragging or overturning mold |
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