CN107586068A - A kind of construction method of column concrete and concrete column - Google Patents
A kind of construction method of column concrete and concrete column Download PDFInfo
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- CN107586068A CN107586068A CN201710753721.3A CN201710753721A CN107586068A CN 107586068 A CN107586068 A CN 107586068A CN 201710753721 A CN201710753721 A CN 201710753721A CN 107586068 A CN107586068 A CN 107586068A
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Abstract
The invention discloses the construction method of a kind of the column concrete and concrete column in the realm of building construction, the raw material of the column concrete includes water, cement, sand, stone, admixture and additive, and the water-cement ratio in raw material is 0.34；The construction method specifically includes early-stage preparations, sets up scaffold, making and colligation shaft reinforcing bar, making and installation fixed form, stirring and transport concrete, casting concrete, removes the step such as scaffold and template and finished product maintenance.The column concrete of the present invention has stronger tension and shock resistance, with higher service life, uniform " minute surface " effect can be formed simultaneously, work progress is compact, not only shorten the construction period of column, the construction intensity of peak period is reduced simultaneously, is laid the first stone and is prepared for subsequent construction.
Description
Technical field
The present invention relates to building field, is to be related to a kind of construction party of column concrete and concrete column specifically
Method.
Background technology
With the quickening of urbanization process, extreme weather increases, and urban storm flood is more and more frequent, same with this
When, Urban Underground water level reduces year after year, and urban water shortage is extremely serious.Therefore the development and utilization of water resource turns into of concern
Emphasis, the application of storage pond allow people to be collected and utilize rainwater, and tremendous contribution is made to save the energy.It is existing
Storage pond mostly be to pour to form using armored concrete, specifically included the construction of bottom plate, side wall, column and beam slab, its
Central post work progress occupies a particularly important ring.
The tensile strength of existing column concrete is low, fragility is big, easy to crack, poor toughness, and shock resistance is poor, is impacting
It is easy to brittle fracture under load action and comes off, so as to reduce the bearing capacity of concrete upright column structure, reduction of service life, into
For the hidden danger of various disaster accidents, in addition, existing concrete stroke leg surface color and luster smoothness is poor, can not stroke " mirror
Face " effect.And the work progress cycle of existing concrete column is longer, construction is complicated, and cost is high, and being unfavorable for the later stage, other are applied
The progress of engineering sequence.
Drawbacks described above, it is worth solving.
The content of the invention
In order to overcome the shortcomings of existing technology, the present invention provides a kind of construction party of column concrete and concrete column
Method.
Technical solution of the present invention is as described below：
On the one hand, a kind of column concrete, it is characterised in that its raw material includes water, cement, sand, stone, admixture and additional
Agent, the mass ratio of above-mentioned each raw material are（0.36-0.44）：1：（1.57-1.93）：（2.50-3.07）：（0.12-0.37）：
（0.02-0.03）, and the water-cement ratio in raw material is 0.34.
According to the present invention of such scheme, it is characterised in that the additive is high efficiency water reducing agent.
According to the present invention of such scheme, it is characterised in that in every cubic meter of concrete, the dosage difference of each raw material
For：Water 155kg, the kg of cement 430, the kg of sand 675, the kg of stone 1075, the kg of admixture 50, the kg of additive 9.6.
Further, the admixture is flyash.
According to the present invention of such scheme, it is characterised in that in every cubic meter of concrete, the dosage difference of each raw material
For：Water 155kg, the kg of cement 350, the kg of sand 675, the kg of stone 1075, the kg of admixture 130, additive 10.1kg.
Further, the admixture is flyash and miberal powder, and the quality of the flyash and the miberal powder is respectively
50kg、80kg。
On the other hand, a kind of construction method of concrete column, it is characterised in that comprise the following steps：
S1：Early-stage preparations, including the dabbing cleaning of docking stubble face, surveying setting-out positioning and repetition measurement；
S2：Set up column construction combined scaffold；
S3：Making and colligation shaft reinforcing bar, and embedded part is constructed；
S4：Make and install fixed form；
S5：The stirring and transport of concrete are completed, and carries out pouring for concrete；
S6：Remove scaffold and template；
S7：Finished product is checked and accepted and maintenance.
According to the present invention of such scheme, it is characterised in that in the step S1, first enter before construction lofting in on-site
Row measurement control point encryption, then to post position axis pilot measurement, and makes marks.
According to the present invention of such scheme, it is characterised in that in the step S2, combined scaffold uses fastener type steel
Pipe scaffold building, sets up winding staircase in frame, weld groove steel at the top and bottom of vertical rod；By two section combined scaffold liftings when column is constructed
Channel-section steel at the top of lower section and upper section bottom channel-section steel are connected to the outrigger and operating platform constructed as column after aligning by the use of bolt.
According to the present invention of such scheme, it is characterised in that the shaft reinforcing bar of the diameter more than or equal to 16mm is using straight
Screw shell machinery ties up weldering connection, and the shaft reinforcing bar of the diameter less than or equal to 16mm is connected by overlap welding.
According to the present invention of such scheme, it is characterised in that in the step S3, with all post inner structures in building
Reinforcing bar makees lightning protection shunting and downlead, and lower end connects with electric muscle in basis.
According to the present invention of such scheme, it is characterised in that in the four sides structure of the template, short side template is grown to folder
Cheek board, long side are bolted with short side template flange plate, and shaft section using enclose Eurya plant outer hoop form reinforcing, enclose Eurya plant with
Template reinforcement floor weldering knot, post draw pull bar fastening outside.
According to the present invention of such scheme, it is characterised in that in the installation process of the template, the bottom of the template
The mode for setting steel bar end in main bar upright column bottom is fixed；The often section of installation one template, it is vertical to the template using vertical line
Degree is corrected；After the completion of the model sheetinstallat, steel form is fixed with hawser, steel form perpendicularity is corrected using total powerstation.
According to the present invention of such scheme, it is characterised in that it is 2 first to spread a layer thickness in the step S5, before pouring
~3cm design carries out placement layer by layer to concrete with grade cement mortar, and the thickness being layered is in 25-30cm.
Further, during concreting, vibrated using poker vibrator, the vibration depth of vibrator is grown no more than rod
2/3~3/4 times of degree.
Further, after the completion of concreting, upper surface plastic covering film immediately, geotextiles are covered after final set, and spill
Water keeps moistening.
According to the present invention of such scheme, its advantage is, column concrete of the invention has stronger tension
And shock resistance, being capable of effective pressure-bearing so that concrete column has higher service life, safe；The concrete
With the characteristics of smooth, smooth, color and luster is high, uniform " minute surface " effect can be formed.The work progress of the present invention is compact, not only
The construction period of column is shortened, while ensures that template turnover is timely, the construction intensity of peak period is reduced, is laid for subsequent construction
Basis and preparation.
Brief description of the drawings
Fig. 1 is the construction process figure of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is further described embodiment：
A kind of column concrete, its raw material include water, cement, sand, stone, admixture and additive, the matter of above-mentioned each raw material
Amount ratio is（0.36-0.44）：1：（1.57-1.93）：（2.50-3.07）：（0.12-0.37）：（0.02-0.03）, and it is former
Water-cement ratio in material is 0.34.
Additive therein is high efficiency water reducing agent.
In one embodiment, the dosage of each raw material is respectively：Water 155kg, the kg of cement 430, the kg of sand 675, stone
1075 kg, the kg of admixture 50, the kg of additive 9.6, admixture therein are flyash.Specifically used ratio is 0.36：
1.00：1.57：2.50：0.12：0.02.
Formally realize that slump is 120-160mm, apparent density reaches 2395kg/m3.
In another embodiment, the dosage of each raw material is respectively：Water 155kg, the kg of cement 350, the kg of sand 675, stone
1075 kg, the kg of admixture 130, additive 10.1kg.
Specifically used ratio is：0.44：1：1.93：3.07：0.37：0.03.Wherein, admixture is flyash and miberal powder,
And the quality of flyash and miberal powder is respectively 50kg, 80kg.
As shown in figure 1, a kind of construction method of concrete column, comprises the following steps：
First, early-stage preparations, including the dabbing cleaning of docking stubble face, surveying setting-out positioning and repetition measurement.
Control point encryption first is measured in on-site before construction lofting, then to post position axis pilot measurement, and carries out mark.
Surveyed when column is constructed on cushion cap surface and set shaft control line, after review, the ejection line of ink marker is as column construction reference control line.Together
It is whether accurate that the benchmark control point set is surveyed during Shi Fuhe bearing platform constructions, in case column absolute altitude and middle line traffic control.
2nd, column construction combined scaffold is set up.
Column construction uses combined scaffold, and combined scaffold is set up using fastener type steel pipe scaffold, height 6.0m, frame
Winding staircase, vertical rod top and bottom weld groove steel are inside set up, channel-section steel is kept flat, and waist opens bolt hole, and bolt hole unifies spacing and specification.It is vertical
Channel-section steel at the top of lower section and upper section bottom channel-section steel are connected with bolt after two section combined scaffold liftings are aligned when post is constructed
Outrigger and operating platform as column construction.
Array pitch 1.5m between combined scaffold vertical rod, step pitch 1.5m.In order to provide construction location, group to reinforcing bar and template construction
Set up position of the hand cradle of fitting beyond away from column edge 50cm.
The operational procedure of steel pipe scaffold is：In vertical rod → outer vertical rod → small cross bar → leger → safety net → guard rail
Bar → brace → wall connecting rod → bamboo sheathing → Dense mesh screen.Specifically：
（1）Vertical rod
Every bottom of upright rod sets base or backing plate, and backing plate use 5cm solid woods, and scaffold bottom setting vertical, horizontal is swept the floor bar.
Vertical rod, rear perpendicular outer vertical rod program are set up in starting vertical rod is first erected, inner vertical rod holding and building 500mm clearances.In parallel
Vertical rod flexes outward 1200mm~1500mm clear distances and takes outer vertical rod position.
（2）Vertical equity bar
Vertical equity bar is arranged on the inside of vertical rod；Vertical equity bar spreading is connected using sleeve couple can also use overlap joint.
(3) transverse horizontal bar
A piece transverse horizontal bar is set at host node, and with right-angle coupler snapping, at host node, the centre-to-centre spacing of two right-angle couplers is not
It should be greater than 150mm.
(4) bridging
When construction scaffolding is set up, the outer side elevation of scaffold surrounding is respectively provided with bridging.Per pass bridging crosses over the radical of vertical rod
For 5~7, width is not less than 4 across and being not less than 6m, the inclination angle on brace and ground is between 45 °~60 °.
Using overlap joint, overlap joint requires to require identical with vertical rod overlap joint the spreading of bridging brace.Bridging brace is using rotation
Turn fastener to be fixed in external part or the vertical rod of intersecting therewith transverse horizontal bar, the distance of rotary buckle center line to host node
No more than 15cm.
（5）Scaffold board
Scaffold board laying is using docking tiling or lapped layup.During scaffold board docking tiling, joint must set two horizontal water
Flat bar, scaffold board extension take 13cm~15cm, two pieces of scaffold board extensions and no more than 30cm；Scaffold board overlap joint paving
If when, joint must be propped up on transverse horizontal bar, and the lap of splice is more than 20cm, and it stretches out the length of transverse horizontal bar and is not less than
10cm。
（6）Safety net
Safety net is divided into vertical net and plain net, and the step of plain net two sets one layer, stands net totally-enclosed setting on the outside of scaffold.Safety net with it is big
Cross bar, small cross bar firmly connect.Workbench bamboo sheathing is laid during setting up, and is tied to respectively with the single double-round of 10# galvanized wires small
On cross bar.
3rd, making and colligation shaft reinforcing bar, and embedded part is constructed.
1st, the making and connection of reinforcing bar
Steel bar stress is bent, terminal hook and stirrup terminal hook, its shape and length all should meet design drawing requirement, pillar
Stirrup is generally compound hoop, and closing form is used in addition to steel tie, and end sets 135 ° of crotches.The bending of stirrup hook is straight
Footpath should be greater than being bound round the diameter of main reinforcement, and cannot be less than 4 times of stirrup diameter；It is straight that segment length that crotch is straight cannot be less than stirrup
10 times of footpath.Post and cast-in-place lintel, in post planted agent's reserved steel bar, it is to anchor into length in post that reinforcing bar, which stretches out post crust length,
1.2La.The adjacent longitudinal reinforcement jointing of post mutually staggers, and splice area percentage not should be greater than in same section
50%.It the basic joint bar of pillar, when height of foundation is less than 1.2m, should be inserted on bottom of foundation reinforcing bar, then add the water of 200 length
Flat crotch.When height of foundation is more than or equal to 1.2m, online, remaining joint bar insertion that the joint bar of corner only can be extended into baseplate reinforcing bar
Depth meets anchorage length LaE.
Reinforcing bar of the diameter more than or equal to 16mm can use straight screw sleeve machinery in processing or tie up weldering connection, and diameter is less than
Reinforcing bar equal to 16mm is connected using overlap welding.Reinforcing bar arc welding double welded joint length should be not less than 5d, and inconel weld length is not
Less than 10d.Throat thickness >=0.3d, weld width >=0.8d.
2nd, the installation of reinforcing bar
Combined scaffold assembling finishes, and after the assay was approved, reparation is corrected to cushion cap embedded bar, and removed and floated with wire brush
Mud, iron rust on reinforcing bar, reinforcing bar colligation can be carried out according to design drawing after meeting the requirements.
（1）The net protective layer thickness of column reinforcing bar cage bar is not less than 35mm, and the net protective layer thickness of stirrup is not less than 25mm.
（2）When reinforcing bar is using mechanically connecting, erection joint can be tightened with pipe tongs wrench, should make steel bar head in sleeve center
Position is mutually held out against.Exposed threads after the installation of standard type joint are no more than 2p.
（3）When muscle is using welding, two connection reinforcing bar axis should be consistent, and weld length is not less than 5d（Welding by both sides）Or 10d（It is single
Weld in face）.
（4）The spot welding of the intersection of framework of steel reinforcement and reinforced mesh preferably uses resistance spot welding.
（5）It should lack on same root reinforcing bar and set joint；Splice should be located at stress compared with away minor segment, should not be located at component
At maximal bending moment；In any welding point length sections, same root reinforcing bar must not have two joints, the stress in the section
Reinforcing bar, the area of section of its joint account for the percentage of total cross-sectional area no more than 50%.Welding point length sections refer to 35d length
In the range of, but cannot be less than 500mm.
（6）The distance that connector end to reinforcing bar is bent up a little cannot be less than 10 times of bar diameter.
（7）Shaft cage bar stretches into cushion cap bottom and together with the bar connecting of cushion cap bottom.
（8）Stirrup uses closed type, and 135 ° of crotches, the crotch joint of adjacent stirrup, along stem height side are made in its end
To interlaced arrangement.
（9）Scaffold is set in surrounding according to pillar construction size during column reinforcement installation, and construction winding staircase is set.Manually
Reinforcing bar colligation, bar one-time installation are carried out on scaffold, structure cage bar joint mainly uses mechanical mantle fiber connected mode,
Tied between cage bar and stirrup using tied silk.
To ensure that framework of steel reinforcement has enough rigidity and stability, at the partial intersection point of reinforcing bar welding or with auxiliary steel
Muscle is reinforced.Thickness of protection tier is ensured using concrete pad, cushion block with reinforcing bar colligation firmly, be staggeredly arranged, per square meter not
Less than 4.
（10）After the completion of the construction of column reinforcement installation, cable wind rope is symmetrical arranged at column corner（Using 5mm steel wires
Rope, shaft are highly set together per 6m, and height 9m~12m sets 2, and per pass is in 4 directions to drawing）, and it is corresponding on the ground
Position built-in length 80cm Ф 25mm reinforcing bars are not less than 20 ° as earth anchor, earth anchor with the prismatic angle of shaft, and buried depth is not small
Be hooked in 50cm, and by steel wire rope with flange on earth anchor, make it with shaft substantially into 40 °~60 ° angles, it is first preliminary tense after,
Four steel wire ropes while symmetrical rotary hook flange tense wire rope.
3rd, it is grounded pre-buried installation
Lightning protection is by the use of reinforcing bar in basis and foundation beam as natural grounding device, with all post inner structure reinforcing bars in building
Make lightning protection shunting and downlead, lower end and electric muscle reliable connected in basis.
4th, make and install fixed form.
1st, template construct
Shaft steel form standard knot is highly divided into two kinds of 3m, 4.5m, steel form panel thickness 5mm, ribbed stiffener thickness 80mm, encloses Eurya plant and adopts
With 2, in the face die plate of shaft punching block four, short side template is connected to pressing from both sides long cheek board, long side with short side template flange plate by bolt
Connect.
Shaft section encloses Eurya plant and tied with the weldering of template reinforcement floor, pull bar fastening is drawn outside post using the reinforcing of Eurya plant outer hoop form is enclosed.
2nd, model sheetinstallat
Formwork erection is carried out with truck crane or tower crane indirect labor, each piece of template is connected by screw bolts, template is formed entirety, then adopt
Reinforced with the pull bar set outside template to drawing.
Template bottom is fixed by the way of steel bar end is set in main bar upright column bottom, template bottom when preventing supporting module
Displacement.During model sheetinstallat, a section template is often installed, template is corrected using vertical line to mold plate verticality in time.
After the completion of model sheetinstallat, steel form is fixed with hawser, steel form perpendicularity is corrected using total powerstation.
Before model sheetinstallat, the axis and edge line of shaft are released in cushion cap top surface.During model sheetinstallat, its head section template peace
The plan-position of dress and perpendicularity will be controlled strictly.Template is checked continually in installation process by plumb bob, ensures hanging down for shaft
Straight degree.During model sheetinstallat, operating personnel must stand the operation on the inside of scaffold, and the scope of operation completely spreads scaffold board.
To ensure the vertical stability of template, template tilts during anti-casting concrete, template using surrounding set up support and
The method of pulling cable wind rope is fixed：When pier height is less than 12m, sets four cable wind ropes in die head and divide four direction to fix；Pillar height is big
When 12m, at die head and 2/3 setting four cable wind ropes respectively divides four direction to be fixed on around on ground, template base angle
It is fixed on anchor bolt on cushion cap.
Cement mortar bedding block is set between reinforcing bar and template, and cushion block should be fastened with reinforcing bar, is mutually staggered.
For the more steel form of the number of turnover, dual face strengthened glue only slurry is pasted at form joint.
5th, the stirring and transport of concrete are completed, and carries out pouring for concrete.
1st, concrete for making
Column concrete water-cement ratio is 0.34, and cement consumption 350kg/m3, flyash dosage is 50kg/m3.It is mixed using pumping
Coagulate native time control controlling concrete slump and be generally 120~160mm, 6~8h of presetting period.
2nd, concreting
Design of a layer thickness for 2~3cm should be first spread before pouring with grade cement mortar, to ensure that the engagement of new-old concrete face is good
It is good.
Concrete is transported using concrete mixer truck, and automotive pump is pumped into mould, placement layer by layer, and lift height is controlled in 25cm
~30cm or so, upper layer concrete must be poured before lower-layer concrete initial set, consolidated, pour and be carried out continuously, poker vibrator
Vibrate.Column is poured to transverse tie beam portion position, and binder overall unified placement layer by layer synchronous with column is until pour completion.
When pouring, concrete free-falling highly cannot be greater than 1m.
During concreting, using poker vibrator（Vibrating spear diameter 70mm）Vibrate, the vibration depth one of vibrator
As be no more than 2/3~3/4 times of rod length, 5~10cm, mobile spacing are unsuitable in vibrating head insertion lower-layer concrete during placement layer by layer
More than 1.5 times of acting radial of vibrator, 5~10cm distances are kept with side form, to each vibration position, are vibrated the duration
For 20~30s, no longer sunk by concrete, occur without bubble, surface is presented laitance and is defined.
After the completion of concreting, upper surface plastic covering film immediately, the materials such as geotextiles, and the guarantor that sprinkles water are covered after final set
Hold moistening.
6th, scaffold and template are removed.
After the form removal of column side, immediately using two layers of plastic thin films（An one layer thin thickness）Column is wrapped up, seam
Position is sealed using adhesive tape bonding.
7th, finished product is checked and accepted and conserved.
After two layers of plastic thin films parcel is completed in the form removal of column concrete, wood glue plate corner protector first is installed in column corner, then
Dense mesh screen colligation is carried out again.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Exemplary description has been carried out to patent of the present invention above in conjunction with accompanying drawing, it is clear that the realization of patent of the present invention not by
The limitation of aforesaid way, if the various improvement that the methodology of patent of the present invention and technical scheme are carried out are employed, or without
Improve and the design of patent of the present invention and technical scheme are directly applied into other occasions, within the scope of the present invention.
Claims (10)
1. a kind of column concrete, it is characterised in that its raw material includes water, cement, sand, stone, admixture and additive, above-mentioned
The mass ratio of each raw material is（0.36-0.44）：1：（1.57-1.93）：（2.50-3.07）：（0.12-0.37）：（0.02-
0.03）, and the water-cement ratio in raw material is 0.34.
2. column concrete according to claim 1, it is characterised in that the additive is high efficiency water reducing agent.
3. column concrete according to claim 1, it is characterised in that in every cubic meter of concrete, each raw material
Dosage is respectively：The kg of water 155, the kg of cement 430, the kg of sand 675, the kg of stone 1075, the kg of admixture 50, the kg of additive 9.6.
4. column concrete according to claim 1, it is characterised in that in every cubic meter of concrete, each raw material
Dosage is respectively：Water 155kg, the kg of cement 350, the kg of sand 675, the kg of stone 1075, the kg of admixture 130, additive 10.1kg.
5. a kind of construction method of concrete column, it is characterised in that comprise the following steps：
S1：Early-stage preparations, including the dabbing cleaning of docking stubble face, surveying setting-out positioning and repetition measurement；
S2：Set up column construction combined scaffold；
S3：Making and colligation shaft reinforcing bar, and embedded part is constructed；
S4：Make and install fixed form；
S5：The stirring and transport of concrete are completed, and carries out pouring for concrete；
S6：Remove scaffold and template；
S7：Finished product is checked and accepted and maintenance.
6. the construction method of concrete column according to claim 5, it is characterised in that in the step S1, construction
Control point encryption first is measured in on-site before setting-out, then to post position axis pilot measurement, and is made marks.
7. the construction method of concrete column according to claim 5, it is characterised in that in the step S2, combination
Scaffold is set up using fastener type steel pipe scaffold, and winding staircase, vertical rod top and bottom weld groove steel are set up in frame；Column will when constructing
Channel-section steel at the top of lower section and upper section bottom channel-section steel are connected as column and applied by the use of bolt after aligning by two section combined scaffold liftings
The outrigger and operating platform of work.
8. the construction method of concrete column according to claim 5, it is characterised in that in the step S5, pour
Preceding design of a layer thickness for 2~3cm that first spread carries out placement layer by layer, and the thickness being layered to concrete with grade cement mortar
Degree is in 25-30cm.
9. the construction method of concrete column according to claim 8, it is characterised in that during concreting, using slotting
Enter formula vibrator to vibrate, the vibration depth of vibrator is no more than 2/3~3/4 times of rod length.
10. the construction method of concrete column according to claim 8, it is characterised in that after the completion of concreting, on
Surface plastic covering film immediately, covers geotextiles after final set, and holding moistening of sprinkling water.
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| CN201710753721.3A CN107586068B (en) | 2017-08-29 | 2017-08-29 | Upright column concrete and construction method of concrete upright column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753721.3A CN107586068B (en) | 2017-08-29 | 2017-08-29 | Upright column concrete and construction method of concrete upright column |
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| CN107586068B CN107586068B (en) | 2020-04-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338537A (en) * | 2021-05-26 | 2021-09-03 | 中国五冶集团有限公司 | Construction method of ultrahigh large-section concrete frame column |
| CN116494676A (en) * | 2023-01-07 | 2023-07-28 | 重庆建工渝远建筑装饰有限公司 | Construction method of large relief hollow stone column |
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| JPH05272198A (en) * | 1992-03-24 | 1993-10-19 | Penta Ocean Constr Co Ltd | Core column |
| JPH10194813A (en) * | 1996-12-26 | 1998-07-28 | Nippon Cement Co Ltd | Lightweight concrete |
| CN102373804A (en) * | 2011-11-15 | 2012-03-14 | 天津大学 | Novel precast concrete pipe column structure and construction method thereof |
| CN103936360A (en) * | 2014-03-17 | 2014-07-23 | 乌海市公路工程有限公司 | High-performance concrete and its preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05272198A (en) * | 1992-03-24 | 1993-10-19 | Penta Ocean Constr Co Ltd | Core column |
| JPH10194813A (en) * | 1996-12-26 | 1998-07-28 | Nippon Cement Co Ltd | Lightweight concrete |
| CN102373804A (en) * | 2011-11-15 | 2012-03-14 | 天津大学 | Novel precast concrete pipe column structure and construction method thereof |
| CN103936360A (en) * | 2014-03-17 | 2014-07-23 | 乌海市公路工程有限公司 | High-performance concrete and its preparation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338537A (en) * | 2021-05-26 | 2021-09-03 | 中国五冶集团有限公司 | Construction method of ultrahigh large-section concrete frame column |
| CN116494676A (en) * | 2023-01-07 | 2023-07-28 | 重庆建工渝远建筑装饰有限公司 | Construction method of large relief hollow stone column |
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| Publication number | Publication date |
|---|---|
| CN107586068B (en) | 2020-04-14 |
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