CN106639319A - Rotten root prevention construction method for shear walls, columns and other concrete vertical structures - Google Patents
Rotten root prevention construction method for shear walls, columns and other concrete vertical structures Download PDFInfo
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- CN106639319A CN106639319A CN201710029018.8A CN201710029018A CN106639319A CN 106639319 A CN106639319 A CN 106639319A CN 201710029018 A CN201710029018 A CN 201710029018A CN 106639319 A CN106639319 A CN 106639319A
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- wall
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- root
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a rotten root prevention construction method for shear walls, columns and other concrete vertical structures. The method comprises the steps of 1 formulating a formwork project construction scheme, 2 fitting a die, 3 determining shear wall and column side boundaries, and performing paying-off along the shear wall and column side boundaries, 4 performing cutting along the shear wall and column side boundaries and chiseling a groove, 5 installing shear wall and column root backform reinforcing steel bars, 6 inspecting and finishing a formwork, and uniformly coating an oil releasing agent, 7 installing the formwork, 8 inspecting the perpendicularity and flatness of the formwork and accepting the formwork, 9 straightening an outer wall external formwork, staircases, elevator shaft formworks and lower wall suspension wires, 10 plastering the formwork root with cement mortar and pouring concrete, and 11 removing the formwork. According to the rotten root prevention construction method for shear walls, columns and other concrete vertical structures, the rotten root phenomenon of the shear walls, columns and other concrete vertical structures is eliminated, the appearance quality of a finished product is improved, the durability is good, following repairing procedures are avoided, and the time limit for a project is shortened.
Description
Technical field
The present invention relates to the concrete vertical structure such as technical field of building construction, more particularly to a kind of shear wall, post is rotten
Root prevents and treats construction method.
Background technology
In high-building construction, the concrete vertical structure such as shear wall, post is the key of building main body construction.Due to applying
The concrete vertical structure Jing such as the reasons such as work technique, material, operator's skills involved in the labour, shear wall, post often occurs rotten
This common quality defect.With regard to its mass defect Producing reason analysis, in addition to material and human factorss, main cause is existing skill
Again clamping plate formwork is built by installation after floor concrete of having constructed in art and pour the concrete vertical structure such as shear wall, post.
For concrete vertical structures such as shear wall, the posts with building clamping plate formwork, traditional method is to do template with clamping plate, using wood
A tree, used in making timber for boats back cord, steel pipe back cord and Screw arbor with nut at both-ends are reinforced, positioning welding limit by reserved steel bar head on bottom panel or in post wall cage bar
The methods such as position reinforcing bar.Because template contacts bad with flooring board concrete, gap is easily produced, traditional way is added in adjustment
Gu after the completion of template is blocked with the gap of flooring in formwork root cement mortar, after cement mortar solidification after pour shearing again
The concrete vertical structure such as wall, post, because template in construction process causes spillage with floor seam imprecision or manually vibrates
It is lack of standardization to cause concrete to isolate, the phenomenon of rotten is often occurred on the concrete vertical structure such as finished product shear wall, post, cause finished product
Aesthetic quality is poor, and durability is low, and the later stage also needs to repair, and increased the duration, have impact on the durability and progress of engineering.Therefore,
The bad root phenomenon of the concrete vertical structures such as preventing and treating finished product shear wall, post is the problem for needing to solve at present.
The content of the invention
The purpose of the present invention is improved for the deficiencies in the prior art, there is provided the concrete such as a kind of shear wall, post is erected
Construction method is prevented and treated to structure for rotten, it eliminates the concrete vertical structure bad root phenomenon such as shear wall, post, finished product impression quality
Improve, good endurance, it is to avoid after reparing process, shorten the duration.
The technical scheme is that what is be achieved in that：
Step one：Establishment form work engineering arrangement and method for construction.According to stencil plane layout drawing（Matching die figure）With relevant specification, standard, carry
Go out operation technological requirement, draw model sheetinstallat figure and drawing.Worked out by project administration《Form work engineering special construction plan》,
Reasonable arrangement operational procedure, it is ensured that construction quality and construction safety, saves expense and reduces engineering cost, while meet civilization applying
Work and environmental protection requirement.
Step 2：With mould, template is wood plywood, is reinforced using wooden a tree, used in making timber for boats back cord, steel pipe back cord, Screw arbor with nut at both-ends and step by step
Tightly.Template is reinforced using 50 × 100mm wood a tree, used in making timber for boats back cords using not less than 15mm thickness wood plywoods（Spacing is not more than 200mm）、φ
48 × 3.5mm steel pipe back cords, Screw arbor with nut at both-ends（With diameter greater than φ 14mm）Spelling is dissipated with step fastener to form, step fastener is arranged on end head
Point；At shear wall, pillar height and back timber also wants peripheral hardware steel pipe and fastener to carry out auxiliary construction.
Step 3：Shear wall, post sideline are determined, along shear wall, post sideline unwrapping wire.Shear wall, post sideline measurement control master
Internal control measurement method is taken, control point is set on engineering structure floor, laser zenith meter passes through floor slab preformed hole cultellation upwards
Testing.Strict implement specifications of surveys；In accordance with the principle of local after first entirety, horizontal and vertical control networks are first determined, in control net
Check it is errorless after, then to control net as foundation, carry out the line setting at each position of engineering.
Step 4：Channel(l)ing groove is cut and outwards picks along shear wall, post sideline, groove is along shear wall, post sideline to outside expansion
Exhibition, the size and sealing rod size fit of groove.
Step 5：Shear wall, post root backform reinforcing bar are installed, the screw-thread steel of a diameter of φ 8mm is punched and then inserted with electric drill
As shear wall, post root backform reinforcing bar.
Step 6：Template inspection is repaired, uniform brushing oil-based release agent.
Step 7：Model sheetinstallat, 1）Eject template hookup wire in place and control line.Wall axis shift deviation control ±
In the range of 3mm.2）Absolute altitude is controlled, highly consistent to ensure concrete wall, body of wall absolute altitude deviation is controlled in the range of ± 5mm.3）Peace
The root of decking fixes sealing rod with nail along total length in advance, prevents body of wall from occurring rotten, revealing muscle, voids and pits phenomenon.4）
Template is placed face-to-face, when not installing in the middle of reserve people's row operating walk way of spacing 600mm.5）Model sheetinstallat there is into sealing rod
Root is put into and picks in advance among chisel groove in place, puts inner corner trim mould, and a large form, by construction flowing water section requirement, is carried out between separating,
Until template all closes up in place, bottom backform reinforcing bar is fixed.6）Wall-punching pair-pulling threaded spindle is installed, calibration template is synchronously carried out,
The width dimensions deviation of wall is controlled in the range of -2mm, and every layer of template facade perpendicularity deviation is controlled in the range of ± 3mm, through walls
The mountain type card of Screw arbor with nut at both-ends should block steel pipe back cord, and horizontally or diagonally state must not be presented, and prevent from coming off；Wall-punching pair-pulling threaded spindle
It is firm to fasten, and prevents loosening and causes the mould that rises；Before installation should conscientiously by design shear wall, the post length of side, width and
The height at capital beam bottom carries out template assembly.The method that shear wall, column template stay bolt are combined is fixed.Should before model sheetinstallat
Add template thickness first to eject the position line of installation form per side by column cross-section size on flooring, then installed again.7）Mould
During plate matched moulds, when wall-punching pair-pulling threaded spindle horizontal spacing is more than more than 300mm at J-shaped wall, Z-type wall, template and formwork edge joint, adopt
Reinforced with compensation back cord.8）After the completion of template matched moulds, the edge joint position patch sealing strip in template sideline, while full-time staff must be according to
《Form work engineering special construction plan》And《Standard for quality inspection and assessment of buiding construction》Relevant regulations are conscientiously checked, it is qualified after
Next procedure can be carried out.
Step 8：Mold plate verticality, flatness are inspected for acceptance.Every piece of template must close inspection, it is ensured that shear wall, post into
Quality after type；
Step 9：Exterior wall external mold, staircase, hoistway formwork and lower floor's wall（Old wall）Messenger wire is straight；
Step 10：Formwork root smears cement mortar with mortar leakage prevention, and casting concrete.In formwork root grooved position, use
Cement mortar is blocked, and after preventing concrete spillage, above-mentioned all process steps from completing, carries out concreting, and in casting process, group is special
The whole supervision of people, examines and records spillage situation in concreting process.
Step 11：Form removable.After the completion of concreting, after concrete final set 24 hours and intensity is up to after 1.2Mpa
Can form removal, form removal order for loosen, remove wall-punching pair-pulling threaded spindle, inner corner trim molding angle, hook bolt, after withdrawing from large form, then tear open
Except inner corner trim mould.After form removable formwork root installation place is repaired with concrete oleo stock.
Further, sealing rod of the present invention is PN sealing rods.PN sealing rod water-swellables, with water sealing, pressurization is not
Dehydration, expose it is non-efflorescing cementitious, in building can permanent retention imbibition state, do not shrink, not dehydration, durable reliability, and
With nontoxic, with non-corrosiveness, pollution-free, easy construction, quick, reliable in quality, saving of labor, save time, the low spy of cost
Point.
Compared to existing technology, the beneficial effects are mainly as follows：
1st, the bad root phenomenon of the concrete vertical structure such as shear wall, post is eliminated, finished product impression quality is improved；2nd, after avoiding
Reparing process, saving of work and time improves work efficiency, shortens the duration；3rd, the template for securing sealing rod can be through repacking again
Use again, with water sealing, effect is significant；4th, lower cost for material, and good endurance, safety non-pollution；5th, construction method is simple,
It is convenient to operation.
Description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the left view of Fig. 1.
In accompanying drawing：1- templates；2- sealing rods；3- backform reinforcing bars；4- wood a tree, used in making timber for boats back cords；5- Screw arbor with nut at both-ends；6- steel pipe back cords；7-
Mountain type card；8- nuts；9- concrete floors.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is described in detail.
Construction method is prevented and treated referring to rotten of concrete vertical structures such as Fig. 1 and Fig. 2, shear wall, the posts of the present invention specifically to apply
Work step is suddenly as follows：
Step S1：The establishment scheme of project construction of template 1.According to the site plan of template 1（Matching die figure）With relevant specification, standard,
Operation technological requirement is proposed, the installation diagram of template 1 and drawing is drawn.Worked out according to project administration《The special construction of form work engineering
Scheme》, reasonable arrangement operational procedure, it is ensured that construction quality and construction safety saves expense and reduces engineering cost, while meeting
Civilized construction and environmental protection requirement.
Step S2：With mould, template 1 is wood plywood, is reinforced using wooden a tree, used in making timber for boats back cord 4, steel pipe back cord 6, Screw arbor with nut at both-ends 5 and step
Step is tight.Template 1 is reinforced using 50 × 100mm wood a tree, used in making timber for boats back cord 4 using not less than 15mm thickness wood plywoods（Spacing is not more than
200mm）, φ 48 × 3.5mm steel pipes back cord 6, Screw arbor with nut at both-ends 5（With diameter greater than φ 14mm）Spelling is dissipated with step fastener to form, step fastener
End portion is arranged on, at shear wall, pillar height and back timber also wants peripheral hardware steel pipe and fastener to carry out auxiliary construction.
Step S3：Shear wall, post sideline are determined, along shear wall, post sideline unwrapping wire.Shear wall, post sideline measurement control master
Internal control measurement method is taken, control point is set on engineering structure floor, laser zenith meter passes through floor slab preformed hole cultellation upwards
Testing.Strict implement specifications of surveys；In accordance with the principle of local after first entirety, horizontal and vertical control networks are first determined, in control net
Check it is errorless after, then to control net as foundation, carry out the line setting at each position of engineering.
Step S4：Groove of the chisel section for 15 × 15mm is picked along shear wall, the cutting of post sideline and outwards, groove is along shearing
Wall, post sideline are to outside extension, the size and the size fit of sealing rod 2 of groove.
Step S5：Shear wall, post root backform reinforcing bar 3 are installed.The screw-thread steel of a diameter of φ 8mm is punched and then inserted with electric drill
As shear wall, post root backform reinforcing bar 3.
Step S6：Plank sheathing 1 checks finishing, uniform brushing oil-based release agent.
Step S7：Template 1 is installed, and 1）Eject the hookup wire in place of template 1 and control line.Wall axis shift deviation control ±
In the range of 3mm.2）Absolute altitude is controlled, highly consistent to ensure concrete wall, body of wall absolute altitude deviation is controlled in the range of ± 5mm.3）Peace
The root of decking 1, fixes PN sealing rods 2 with nail along total length in advance, and the water-swellable of PN sealing rods 2, with water sealing, pressurizes not
Dehydration, expose it is non-efflorescing cementitious, in building can permanent retention imbibition state, do not shrink, not dehydration, durable reliability, and
With nontoxic, with non-corrosiveness, pollution-free, easy construction, quick, reliable in quality, saving of labor, save time, the low spy of cost
Point, the setting of PN sealing rods 2 prevents the concrete vertical structure such as shear wall, post from occurring rotten, revealing muscle, voids and pits phenomenon.4）
Template 1 is placed face-to-face, when not installing in the middle of reserve people's row operating walk way of spacing 600mm.5）Template 1 is provided with into PN sealings
The root of bar 2 is put into and picks in advance among chisel groove in place, puts inner corner trim mould, a large form 1.By construction flowing water section requirement, separate
Between carry out, until template 1 all closes up in place, bottom backform reinforcing bar 3 is fixed.6）Wall-punching pair-pulling threaded spindle 5, calibration template are installed
1 is synchronously carried out.The width dimensions deviation of wall is controlled in the range of -2mm.Every layer of facade perpendicularity deviation of template 1 is controlled in ± 3mm
In the range of.The mountain type card 7 of wall-punching pair-pulling threaded spindle 5 should block steel pipe back cord 6, and horizontally or diagonally state, anti-anti-avulsion must not be presented
Fall；It is firm that wall-punching pair-pulling threaded spindle 5 must be fastened, and prevent loosening and cause the mould that rises；Should conscientiously by the shearing of design before installation
It is assembled that the height at wall, the post length of side, width and capital beam bottom carries out template 1.Shear wall, column template 1 are entered with the method that stay bolt is combined
Row is fixed.Template 1 should add the thickness of template 1 first to eject the positioning of installation form 1 by column cross-section size on flooring before installing per side
Line, is then installed again.7）During 1 matched moulds of template, edge joint position wall-punching pair-pulling threaded spindle 5 is horizontal between J-shaped wall, Z-type wall, two templates 1
To spacing more than more than 300mm when, using compensation back cord reinforce.8）After the completion of the matched moulds of template 1, in the sideline edge joint position patch of template 1
Sealing strip, while full-time staff must be according to《Form work engineering special construction plan》And《Standard for quality inspection and assessment of buiding construction》
Relevant regulations are conscientiously checked, it is qualified after can carry out next procedure.
Step S8：The perpendicularity of template 1, flatness are inspected for acceptance.Every piece of template 1 must close inspection, it is ensured that shear wall, post
Quality after molding.
Step S9：Exterior wall external mold, staircase, hoistway formwork and lower floor's wall（Old wall）Messenger wire is straight.
Step S10：The root of template 1 smears cement mortar with mortar leakage prevention, and casting concrete.In the root groove position of template 1
Put, blocked using cement mortar, after preventing concrete spillage, above-mentioned all process steps from completing, carry out concreting, casting process
In, the whole supervision of special messenger is sent, examine and record spillage situation in concreting process.
Step S11：Form removable.After the completion of concreting, after concrete final set 24 hours and intensity is up to after 1.2Mpa
Can form removal, form removal order for loosen, remove wall-punching pair-pulling threaded spindle 5, inner corner trim molding angle, hook bolt, after withdrawing from large form 1, then
Remove inner corner trim mould.Template 1 is repaired with concrete oleo stock after removing to the root installation place of template 1.
The technological principle of the present invention：The present invention is sealing rod gang form method, is applied using the template 1 for securing PN sealing rods
The concrete vertical structure such as work shear wall, post, face wall configuration several piece gang form 1, the surface of template 1 is smooth, and seam is smooth simultaneously
Nail PN sealing rods 2 in the bottom of template 1, it is ensured that bottom joint it is tight, to reach the mesh for reducing cement mortar seepage
, so that the concrete vertical structure root surfacing such as shear wall, post after form removal is full and without bad root phenomenon, eliminate
Body of wall reparing process.Construction method of the present invention eliminates the bad root phenomenon of the concrete vertical structure such as shear wall, post, finished product perception
Quality advance；Reparing process after avoiding, saving of work and time improves work efficiency, shortens the duration；Secure the mould of sealing rod
Plate can be reused through repacking, with water sealing, effect is significant；Lower cost for material, and good endurance, safety non-pollution；
Construction method is simple, convenient to operation.
Rotten of the concrete vertical structures such as shear wall, the post of the present invention prevent and treat construction method suitable for current main-stream structure shape
Vertical structure in formula, thus can be widely applied to it is newly-built, enlarging and reconstruct it is civilian（House, apartment, villa etc.）, it is public
（School, market, exhibition center, cinema, library, bank, office office building etc.）Building, can efficiently solve shear wall, post
Deng rotten common fault of the vertical members such as concrete vertical structure, the structural strength and impression quality of lifting member, extend building
Service life, and can save man-hour, improve the economic benefit of engineering.
China Metallurgical Construction Engineering Group Co., Ltd. carries out trying to explore to change by the domestic advanced experience of study to existing construction technology
Enter, using typified form method（Root is not slotted, and is not added with sealing rod 2）, root fluting method（Template 1 is inserted in groove, is not added with sealing rod
2）, sealing rod gang form method（Construction method of the present invention）Three kinds of construction methods to avoid concrete placings during spillage reaching
The purpose of rotten of the concrete vertical structures such as preventing and treating shear wall, post.The public rent of happy Hua Ting is pedaled by building the jump of the company of work six in middle smelting
Room project AE to be formed a team and introduce above-mentioned three kinds of construction technologies in work progress and carry out same condition controlled trial, finds three kinds of methods all
It is effectively reduced the concrete vertical structure bad root phenomenon such as finished product shear wall, post.Wherein, sealing rod gang form method is employed
The concrete vertical structure root concrete such as shear wall, post after construction is the most closely knit full, excellent compared to other two methods
Gesture is obvious.Sealing rod gang form construction method essence adopts the abutment joint of sealing rod 2 before cast-in-situ wall is poured in the bottom of template 1
Blocked, reduced the concrete vertical structure root pulp-water seepage such as shear wall, post in casting process, it is ensured that concrete it is uniform
The closely knit rotten problem so as to avoid finished product member.It is deep by carrying out theory analysis, contrast test, observation summary to the method
The reason for rotten common fault occur in the concrete vertical structure work progress such as research and probe shear wall, post and counter-measure are spent,
And then summary defines this construction method.This construction method effectively removes rotten of the concrete vertical structure such as shear wall, post
Common fault, and it is easy construction, easily operated, the structural strength and impression quality of component are improved, the service life of building is extended,
And can save man-hour, improve engineering economic benefit, can application in China, for engineering is provided quality goods or brilliant with house just
Often use and have far-reaching significance.
It is last it should be noted that above example is only unrestricted to illustrate technical scheme, although Shen
Ask someone to be described in detail the present invention with reference to preferred embodiment, it will be understood by those within the art that, to this
Bright technical scheme is modified or equivalent, without deviating from the objective and scope of the technical program, all should be covered at this
In the middle of the right of invention.
Claims (2)
1. a kind of rotten of the concrete vertical structure such as shear wall, post prevents and treats construction method, it is characterised in that：Specific construction step is such as
Under：
Step one：Establishment form work engineering arrangement and method for construction, according to stencil plane layout drawing and relevant specification, standard, proposes operative employee
Skill requirement, draws model sheetinstallat figure and drawing；
Step 2：With mould, template is wood plywood, is reinforced using wooden a tree, used in making timber for boats back cord, steel pipe back cord, Screw arbor with nut at both-ends and step fastener；
Step 3：Shear wall, post sideline are determined, along shear wall, post sideline unwrapping wire；
Step 4：Channel(l)ing groove is cut and outwards picks along shear wall, post sideline；
Step 5：Shear wall, post root backform reinforcing bar are installed；
Step 6：Template inspection is repaired, uniform brushing oil-based release agent；
Step 7：Model sheetinstallat, 1）Template hookup wire in place and control line are ejected, wall axis shift deviation is controlled in ± 3mm models
In enclosing；2）Absolute altitude is controlled, highly consistent to ensure concrete wall, body of wall absolute altitude deviation is controlled in the range of ± 5mm；3）Installation form
Root fix sealing rod along total length with nail in advance；4）Template is placed face-to-face, when not installing in the middle of reserve spacing 600mm
People's row operating walk way；5）The root that model sheetinstallat has sealing rod is put into and is picked in advance among chisel groove in place, put inner corner trim mould,
Large form；6）Wall-punching pair-pulling threaded spindle is installed, calibration template is synchronously carried out, the width dimensions deviation of wall is controlled in the range of -2mm,
Every layer of template facade perpendicularity deviation is controlled in the range of ± 3mm；7）During template matched moulds, J-shaped wall, Z-type wall, template and template
When edge joint position wall-punching pair-pulling threaded spindle horizontal spacing is more than more than 300mm, reinforced using compensation back cord；8）After the completion of template matched moulds,
The edge joint position patch sealing strip in template sideline；
Step 8：Mold plate verticality, flatness are inspected for acceptance；
Step 9：Exterior wall external mold, staircase, hoistway formwork and lower floor's wall messenger wire are straight；
Step 10：Formwork root smears cement mortar with mortar leakage prevention, and casting concrete；
Step 11：Form removable.
2. rotten of the concrete vertical structure such as shear wall according to claim 1, post prevents and treats construction method, and its feature exists
In：The sealing rod is PN sealing rods.
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| CN201710029018.8A CN106639319A (en) | 2017-01-16 | 2017-01-16 | Rotten root prevention construction method for shear walls, columns and other concrete vertical structures |
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| CN201710029018.8A CN106639319A (en) | 2017-01-16 | 2017-01-16 | Rotten root prevention construction method for shear walls, columns and other concrete vertical structures |
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| CN109594719A (en) * | 2018-11-07 | 2019-04-09 | 中国二十冶集团有限公司 | A kind of concrete column casting method |
| CN109741676A (en) * | 2019-01-24 | 2019-05-10 | 南通格瑞环保科技有限公司 | A kind of civil engineering splice template |
| CN110397266A (en) * | 2019-07-03 | 2019-11-01 | 五冶集团上海有限公司 | A kind of mortar blocking method preventing shear wall root spillage and rotten |
| CN110905202A (en) * | 2019-12-12 | 2020-03-24 | 中天建设集团有限公司 | Wall formwork perpendicularity adjusting assembly and construction method thereof |
| CN111119477A (en) * | 2019-11-27 | 2020-05-08 | 广西建工集团第五建筑工程有限责任公司 | Green fixing device for square steel of vertical template of welded elbow and construction method of green fixing device |
| CN111472444A (en) * | 2019-01-24 | 2020-07-31 | 中航天建设工程有限公司 | Construction method for preventing root rot of frame column |
| CN113374254A (en) * | 2021-06-28 | 2021-09-10 | 中冶建工集团有限公司 | Construction method for improving forming quality of junction of new and old cast-in-place concrete walls |
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| CN113898179A (en) * | 2021-11-16 | 2022-01-07 | 启东建筑集团有限公司 | Construction method of whole plate single-side-edge lock hole formwork supporting system of shear wall structure |
| CN114482535A (en) * | 2021-12-29 | 2022-05-13 | 云南建投第四建设有限公司 | Aluminum alloy inner wall template lower opening slurry leakage prevention plugging method |
| CN115217327A (en) * | 2022-05-31 | 2022-10-21 | 浙江城建建设集团有限公司 | Construction method and template for actual measurement result system in stage of improving main structure |
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Application publication date: 20170510 |