CN101294433A - Self-positioning permanent internal mold for cast-in-situ reinforced concrete structure and construction method thereof - Google Patents
Self-positioning permanent internal mold for cast-in-situ reinforced concrete structure and construction method thereof Download PDFInfo
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- CN101294433A CN101294433A CNA2008100392430A CN200810039243A CN101294433A CN 101294433 A CN101294433 A CN 101294433A CN A2008100392430 A CNA2008100392430 A CN A2008100392430A CN 200810039243 A CN200810039243 A CN 200810039243A CN 101294433 A CN101294433 A CN 101294433A
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Abstract
The invention relates to a self-positioning permanent internal mold used for a cast-in-situ reinforced concrete structure, which comprises a top plate, a soleplate and four sidewalls. Iron wires used for float resistance and positioning are embedded in the top plate and the soleplate respectively. The ends of the iron wires protrude beyond the sidewalls. According to the construction method of the invention, bottom stiffeners of a floor slab and steel bars of a ribbon strip are tied up firstly; a ribbed slab is directly tied up with the steel bars of the ribbon strip; pipelines are embedded; ribbon strip bottom stiffeners are fixed to a molding board with iron wires to resist the buoyancy on the overall internal mold; an internal mold cushion block is installed; the internal mold is lifted; the internal mold is installed; the upper steel bars of the floor slab are tied up; construction access roads are established with the molding board, and concrete pump pipes are erected; concrete is cast and vibrated. As through iron wires and sectional iron wires are embedded in the top plate and the soleplate, the bearing strength of the internal mold is improved, thus facilitating construction and reducing the failure rate. The internal mold has low cost, high cost performance, and high operability. By adopting the internal mold and the application method of the internal mold, the construction cost is reduced, the operating efficiency is improved, and the construction quality is ensured.
Description
Technical field
The present invention relates to constructional materials, particularly a kind of self-positioning permanent internal mold and job practices thereof that is used for cast-in-situ reinforced concrete structure.
Background technology
The existing disposable internal mold that is used for cast-in-situ concrete hollow and ribbed slab floor structure, its location and measure of anti float are all separated with the internal mold product with annex, and hollow and solid internal mold objective reality in cast-in-situ concrete buoyancy and extruding force.The anti-floating supplementary measures of existing internal mold product are at an upper portion thereof or the bottom spacer bars, and muscle is connected with iron wire at the bottom of spacer bars and the girt strip, and muscle penetrates the floor slab construction template with iron wire and carries out from fixing or fix with its underpart scaffold at the bottom of the girt strip.Spacer bars has increased the floor bar consumption, its location and measure of anti float complexity, and increased the artificial and material of installation aspect, these have all caused waste.
The existing disposable internal mold that is used for Cast-in-place concrete ribbed slab floor structure, be equipped with gauze wire cloth under it, be used to support the weight of internal mold and the crack that prevents Cast-in-place concrete, these technical measures have determined that the length and width size of internal mold can not be excessive, and can not satisfy the economic length and width size of in-situ ribbed slab structural cavities.In work progress, Cast-in-place concrete is failed complete cladding steel silk screen, because the gauze wire cloth ingress of air gets rusty easily, causes the explosion of concrete structure, produces hidden dangers in project.
Part internal mold product is provided with protruding bar in its part at present, because the hardness of protruding bar is big, should not operate and not have this function for any direction location, protruding bar only limits to structure and connects and local location, does not have substantive contribution for the location of internal mold arbitrary height position in floor; The bending of protruding bar can cause damage to the shape and the structure of internal mold, does not therefore have operational feasibility.
In addition, existing internal mold product breakage rate in transportation and work progress is bigger.
Summary of the invention
In order to overcome the shortcoming of above-mentioned internal mold product, task of the present invention provides a kind of improved self-positioning permanent internal mold and job practices thereof that is used for cast-in-situ reinforced concrete structure, and it has solved working measure complexity that existing internal mold product exists, increase construction cost, be easy to generate the problem of hidden dangers in project.
Technical solution of the present invention is as follows:
A kind of self-positioning permanent internal mold that is used for cast-in-situ reinforced concrete structure, it comprises top board, base plate and four sidewalls, and described top board and base plate are embedded with the iron wire that is used for anti-floating and location respectively, and the iron wire end respectively stretches out in sidewall.
A kind of enforcement is used for the job practices of the self-positioning permanent internal mold of cast-in-situ reinforced concrete structure, and concrete process is as follows:
(A) muscle and girt strip reinforcing bar at the bottom of the first colligation floor, the direct colligation girt strip of ribbed slab floor reinforcing bar;
(B) carry out preheating embedding line, and avoid internal mold and be arranged in the girt strip cross section;
(C) the anti-floating point is set and makes the overall anti-floating of floor, promptly 1～2 meter the anti-floating point is set to the every interval of both sides girder with the floor central point, anti-floating point bores punching for muscle bottom two side template electricity consumptions at the bottom of girt strip, with iron wire with girt strip at the bottom of muscle be fixed on the template with opposing internal mold buoyancy generally;
(D) lay the internal mold cushion block with the thickness of assurance internal mold bottom concrete cover and stablizing of internal mold;
(E) the internal mold lifting adopts uncovered reinforcing cage to make internal mold avoid extrusion damage;
When (F) internal mold is installed internal mold is placed successively smoothly, alignment all around adopts the small size internal mold to guarantee the hollow rate of floor integral body when the set aside pre-embedded facility can't be avoided internal mold; The overhanging iron wire of the internal mold first half is connected and fixed on muscle at the bottom of the girt strip, or muscle is connected and fixed iron wire in advance then with the pre-buried iron wire in internal mold top or expose ring body or drag hook is connected and fixed at the bottom of the girt strip, waters the buoyancy of internal mold when smashing concrete with opposing; The overhanging iron wire of internal mold Lower Half is connected and fixed on girt strip top muscle, with the opposing internal mold from gravity, the X-shaped spatial constraints that internal mold top and the bottom iron wire intersects to form the distance of internal mold and girt strip reinforcing bar, betwixt between every distance, two-way with muscle at the bottom of the iron wire connection girt strip, and penetrate the construction bottom die plate and carry out, or be fixed on the construction bottom die plate lower support scaffold from fixing;
(G) colligation floor top reinforcement, the floor top reinforcement should with the girt strip upper reinforcement be positioned at layer and and the colligation of girt strip upper reinforcement firm, floor top reinforcement and interior intermode placement cushion block is with the assurance protective layer thickness;
(H) with template erection construction sidewalk, set up concrete delivery pump pipe, the concrete delivery pump pipe bottom is avoided being pressed on the floor bar, places flitch in the girt strip position, lays template on flitch, and concrete delivery pump pipe is set up in eminence;
(I) disturbing concrete, slump is got 16～22cm, if interior mold materials water absorption rate is big, then sprinkle water moistening after disturbing concrete again, water to smash and carry out successively forward since a side girder, cloth is even, avoid concrete to pile up the too high internal mold that damages by pressure a position, adopt the minor diameter vibrating spear or vibrating spear front end welding steel sheet is vibrated in the girt strip position, and vibrate successively, till not having bubble around the internal mold and emerging along the concreting direction.
According to self-positioning permanent internal mold structure and the job practices thereof that is used for cast-in-situ reinforced concrete structure of the present invention, top board, base plate and four sidewalls at the internal mold product stretch out the iron wire that is used for anti-floating and location as required, perhaps other allows to imbed the material that is equal to intensity and tool suppleness of reinforced concrete structure, as cordage etc., its position, quantity and thickness length are located required resistance according to actual conditions and design internal mold and are decided; And guarantee the firm of internal mold position after the form removal of close girt strip structure, eliminate the hidden danger that internal mold is come off because of external force such as seismic force effects, guarantee the safety of reinforced concrete structure.
The internal mold product inner pre-buried by its pulling force can any direction, angle connects or the material of segmentation, for example need there be fixation segmentation internal mold inner end, amplifies measure as partial lateral.The iron wire or the also available adhesive of other material that are used for anti-floating and location adhere to the internal mold surface.
Also can be pre-buried in internal mold product surface optional position locate required opposing pulling force and fixed ring body or the drag hook of exposing, be used for the materials such as iron wire of anti-floating location with connection according to actual conditions and design internal mold.Material such as iron wire or drag hook should the portion of setting a trap be protected overcoat at the overhanging binding site of internal mold according to pressure, and complete with the protection internal mold, this protection lagging material allows to imbed reinforced concrete structure.
Internal mold shape of product of the present invention can decide according to engineering actual conditions (as span, load, need thickness of slab and the internal mold factors such as position at floor) and aspect factors such as engineering design demand and easy construction degree, specifically can be casing shape, arcuation casing shape, cylindrical shape or other allosome shape.When being used for Cast-in-place concrete ribbed slab floor structure, the internal mold bottom surface should have the shape to bottom surface mid point four sides angled transition or arcwall face transition, helps Cast-in-place concrete and infiltrates slit under the internal mold, reduces the workload that soffit whitewashes.Excessive as slit under the internal mold, then should lay and allow to be used for the reinforcement net of Cast-in-place concrete with the control crack.
The job practices that this internal mold product is used for cast-in-situ reinforced concrete is, the overhanging iron wire of the internal mold first half is connected and fixed on muscle at the bottom of the girt strip, is used to resist the buoyancy that waters internal mold when smashing concrete; The overhanging iron wire of internal mold Lower Half is connected and fixed on girt strip top muscle, be used to resist internal mold from gravity (more obvious under the ribbed slab floor structure situation); The distance of internal mold and girt strip reinforcing bar has been limited in the X-shaped space that internal mold top and the bottom iron wire intersects to form effectively, has guaranteed the thickness of internal mold six direction topping effectively.The overall buoyancy of floor (calculating through the volume hollow rate) is decided by design, and betwixt between every distance, the iron wire of the suitable diameter of two-way usefulness connects muscle at the bottom of the girt strip, and penetrates the construction bottom die plate and carry out from fixing, or is fixed on the construction bottom die plate lower support scaffold.
This internal mold product since its top board, base plate pre-buried the iron wire of perforation or segmentation, increased its load bearing stength, be convenient to construction, reduced breakage rate, its cost is low, the cost performance height is workable.This internal mold product can be by glass fibre reinforced composion (GRC), plastic products, paper products, polyphenyl material, glass fiber reinforced plastic, polyurethane or perlite etc. solid and hollow material make.
Adopt internal mold product of the present invention and job practices thereof, reduced construction cost, improved efficiency of construction, realized the engineering design intention truly, guaranteed the construction quality of engineering.
Description of drawings
Fig. 1 is a kind of structural representation that is used for the self-positioning permanent internal mold of cast-in-situ reinforced concrete structure of the present invention.
Fig. 2 is the structural representation of second embodiment of Fig. 1 internal mold.
Fig. 3 is the structural representation of the 3rd embodiment of Fig. 1 internal mold.
Fig. 4 is the structural representation of the 4th embodiment of Fig. 1 internal mold.
Fig. 5 is the structural representation of the 5th embodiment of Fig. 1 internal mold.
Fig. 6 is the structural representation of the 6th embodiment of Fig. 1 internal mold.
Fig. 7 is the structural representation of the 7th embodiment of Fig. 1 internal mold.
Fig. 8 is the structural representation of the 8th embodiment of Fig. 1 internal mold.
Fig. 9 is the structural representation of the 9th embodiment of Fig. 1 internal mold.
The specific embodiment
Referring to Fig. 1 to Fig. 8, the present invention is a kind of self-positioning permanent internal mold that is used for cast-in-situ reinforced concrete structure, and it comprises top board 1, base plate 2 and four sidewalls 3.Top board 1 and base plate 2 are pre-buried respectively is used for the iron wire 4 of anti-floating and location, and the end of every iron wire 4 all stretches out in sidewall 3, to be connected and fixed muscle at the bottom of girt strip top muscle and the girt strip.
As shown in Fig. 1 to Fig. 4, be embedded on top board 1 and the base plate 2 iron wire 4 X-shapes, the end of every iron wire 4 all stretches out in top board 1 and the junction of sidewall 3 and the junction of base plate 2 and sidewall 3, forms be parallel to each other and perpendicular X-shaped space.
And for example shown in Fig. 5 to Fig. 8, be embedded on top board 1 and the base plate 2 iron wire 4 linears, be the shape that is parallel to each other.Shape iron wire 4 among Fig. 5 and Fig. 6 linearly is embedded on top board 1 and the base plate 2 respectively.Shape iron wire 4 among Fig. 7 and Fig. 8 linearly is embedded in the internal mold, and iron wire 4 ends pass from sidewall 3 respectively.
Referring to Fig. 2 and Fig. 4, be provided with in iron wire 4 ends and expose ring body 5 or drag hook, be more convenient for being connected and fixed muscle at the bottom of girt strip top muscle and the girt strip.Certainly at the iron wire shown in Fig. 5 to Fig. 84, its end also can be provided with exposes ring body 5 or drag hook, so that be connected and fixed muscle at the bottom of girt strip top muscle and the girt strip.
Fig. 1 and Fig. 2, Fig. 5 and internal mold shown in Figure 7 are box shape, and Fig. 3 and Fig. 4, Fig. 6 and internal mold shown in Figure 8 then are arcuation casing shape.The internal mold of arcuation casing shape arches upward in the center of its top board 1 and base plate 2, and this portion 6 that arches upward is to four edges of boards inclinations and have inclined plane 7, is ramped shaped.
The shape of arcuation casing shape internal mold can also be provided with like this: promptly arch upward in the center of its top board 1 and base plate 2, this portion 6 that arches upward is to four edges of boards arc-shaped transition and have arcwall face, is circular shape.
Referring to Fig. 9, shown a kind of cylindric internal mold among the figure, the pre-buried respectively iron wire 4 that is used for anti-floating and location in its end face and bottom surface, the end of every iron wire 4 all stretches out in sidewall 3, to be connected and fixed muscle at the bottom of girt strip top muscle and the girt strip.
By a kind of job practices that is used for the self-positioning permanent internal mold of cast-in-situ reinforced concrete structure of the present invention, concrete process is as follows:
1, play the girt strip reinforcement installation position line, according to axis, eject direction girt strip control line in length and breadth according to designing requirement, accurate with internal mold and girt strip reinforcement location between the assurance girt strip.
2, muscle and girt strip reinforcing bar at the bottom of the colligation floor, the direct colligation girt strip of ribbed slab floor reinforcing bar.
3, preheating embedding line should be avoided internal mold and is arranged in the girt strip cross section, and the following pipeline of external diameter 20mm can be arranged in the solid section of internal mold bottom (except the ribbed slab floor); Big and the intensive position of pipeline can adopt size to reduce the internal mold of 20mm to 100mm, to make things convenient for pipeline construction for caliber.
4, the anti-floating point is set and makes the overall anti-floating of floor, promptly 1～2 meter the anti-floating point is set to the every interval of both sides girder with the floor central point, anti-floating point bores punching for muscle bottom two side template electricity consumptions at the bottom of girt strip, with 12 to No. 16 iron wires with girt strip at the bottom of muscle be fixed on the template to resist internal mold buoyancy generally; Carry out the special examination of anti-floating point then.
5, lay the internal mold cushion block according to designing requirement, with the thickness of assurance internal mold bottom concrete cover and stablizing of internal mold.
6, uncovered reinforcing cage is adopted in the internal mold lifting, makes internal mold avoid extrusion damage.
7, internal mold is installed, is placed smoothly according to the internal mold arrangement diagram successively, all around alignment should be adopted the small size internal mold when the set aside pre-embedded facility can't be avoided internal mold, to guarantee the hollow rate of floor integral body; After internal mold places, avoid personnel to trample, destroy, the internal mold of damage should in time be changed; The overhanging iron wire of the internal mold first half is connected and fixed on muscle at the bottom of the girt strip, or muscle is connected and fixed iron wire in advance then with the pre-buried iron wire in internal mold top or expose ring body or drag hook is connected and fixed at the bottom of the girt strip, waters the buoyancy of internal mold when smashing concrete in order to opposing; The overhanging iron wire of internal mold Lower Half is connected and fixed on girt strip top muscle, in order to the opposing internal mold from gravity, should be comparatively obvious under the situation of ribbed slab floor structure from gravity; The distance of internal mold and girt strip reinforcing bar has been limited in the X-shaped space that internal mold top and the bottom iron wire intersects to form effectively; guaranteed internal mold six direction protective layer thickness effectively; betwixt between every distance; two-way with muscle at the bottom of the iron wire connection girt strip; and penetrate the construction bottom die plate and carry out, or be fixed on the construction bottom die plate lower support scaffold from fixing.
8, colligation floor top reinforcement, the floor top reinforcement should with the girt strip upper reinforcement be positioned at layer and and the colligation of girt strip upper reinforcement firm, floor top reinforcement and interior intermode are placed the cushion block of pressing the designing requirement size, with the assurance protective layer thickness.
9, with template erection construction sidewalk, set up concrete delivery pump pipe, since stressed concentrated behind the placement reinforcing bar cushion block on the internal mold top plate, avoid the workman to trample the infringement internal mold in the construction, and applying template erection construction sidewalk makes things convenient for the workman to construct; The concrete delivery pump pipe bottom is avoided being pressed on the floor bar, can place flitch in the girt strip position, lays template on flitch, and concrete delivery pump pipe is set up in eminence.
10, disturbing concrete, slump is got 16～22cm; If interior mold materials water absorption rate is bigger, should sprinkle water moistening after disturbing concrete again; Water to smash since a side girder and carry out successively forward, cloth is even, avoids concrete to pile up the too high internal mold that damages by pressure a position; Adopt the minor diameter vibrating spear or the vibrating spear front end is welded steel sheet and vibrate in the girt strip position, vibrating spear avoids touching internal mold and cushion block split heads etc., and vibrate successively along the concreting direction, vibrating time prolongs in right amount, vibrate do not have bubble around the internal mold and emerge till.
11, concrete maintenance and form removal program and solid floor are together.
12, internal mold examination and quality control on construction and examination are with reference to the relevant regulations of " cast-in-place concrete hollow building roof structure technology rules " (CECS 175:2004) chapter 7.
Certainly, those skilled in the art in the present technique field will be appreciated that, the foregoing description only is to be used for illustrating the present invention, and be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claim of the present invention conversion, the modification of the foregoing description.
Claims (10)
1. self-positioning permanent internal mold that is used for cast-in-situ reinforced concrete structure, it comprises top board, base plate and four sidewalls, it is characterized in that, and described top board and base plate are embedded with the iron wire that is used for anti-floating and location respectively, and the iron wire end respectively stretches out in sidewall.
2. the self-positioning permanent internal mold that is used for cast-in-situ reinforced concrete structure according to claim 1 is characterized in that, is embedded on top board and the base plate described iron wire linear, is the shape that is parallel to each other.
3. the self-positioning permanent internal mold that is used for cast-in-situ reinforced concrete structure according to claim 1 is characterized in that, is embedded on top board and the base plate described iron wire X-shape, forms be parallel to each other and perpendicular X-shaped space.
4. the self-positioning permanent internal mold that is used for cast-in-situ reinforced concrete structure according to claim 1 is characterized in that, described iron wire perforation or segmental installation are on top board and base plate.
5. the self-positioning permanent internal mold that is used for cast-in-situ reinforced concrete structure according to claim 1 is characterized in that, described iron wire end is provided with exposes ring body or drag hook.
6. the self-positioning permanent internal mold that is used for cast-in-situ reinforced concrete structure according to claim 1 is characterized in that described internal mold is box shape.
7. the self-positioning permanent internal mold that is used for cast-in-situ reinforced concrete structure according to claim 1 is characterized in that, described internal mold is arcuation casing shape.
8. the self-positioning permanent internal mold that is used for cast-in-situ reinforced concrete structure according to claim 7, it is characterized in that, the internal mold of described arcuation casing shape arches upward in the center of its top board and base plate, and this portion that arches upward is to four edges of boards inclinations and have the inclined plane, is ramped shaped.
9. the self-positioning permanent internal mold that is used for cast-in-situ reinforced concrete structure according to claim 7, it is characterized in that, the internal mold of described arcuation casing shape arches upward in the center of its top board and base plate, and this portion that arches upward is to four edges of boards arc-shaped transition and have arcwall face, is circular shape.
10. an enforcement is used for the job practices of the self-positioning permanent internal mold of cast-in-situ reinforced concrete structure, and concrete process is as follows: (A) muscle and girt strip reinforcing bar at the bottom of the first colligation floor, the direct colligation girt strip of ribbed slab floor reinforcing bar; (B) carry out preheating embedding line, and avoid internal mold and be arranged in the girt strip cross section; It is characterized in that,
(C) the anti-floating point is set and makes the overall anti-floating of floor, promptly 1～2 meter the anti-floating point is set to the every interval of both sides girder with the floor central point, anti-floating point bores punching for muscle bottom two side template electricity consumptions at the bottom of girt strip, with iron wire with girt strip at the bottom of muscle be fixed on the template with opposing internal mold buoyancy generally;
(D) lay the internal mold cushion block with the thickness of assurance internal mold bottom concrete cover and stablizing of internal mold;
(E) the internal mold lifting adopts uncovered reinforcing cage to make internal mold avoid extrusion damage;
When (F) internal mold is installed internal mold is placed successively smoothly, alignment all around adopts the small size internal mold to guarantee the hollow rate of floor integral body when the set aside pre-embedded facility can't be avoided internal mold; The overhanging iron wire of the internal mold first half is connected and fixed on muscle at the bottom of the girt strip, or muscle is connected and fixed iron wire in advance then with the pre-buried iron wire in internal mold top or expose ring body or drag hook is connected and fixed at the bottom of the girt strip, waters the buoyancy of internal mold when smashing concrete with opposing; The overhanging iron wire of internal mold Lower Half is connected and fixed on girt strip top muscle, with the opposing internal mold from gravity, the X-shaped spatial constraints that internal mold top and the bottom iron wire intersects to form the distance of internal mold and girt strip reinforcing bar, betwixt between every distance, two-way with muscle at the bottom of the iron wire connection girt strip, and penetrate the construction bottom die plate and carry out, or be fixed on the construction bottom die plate lower support scaffold from fixing;
(G) colligation floor top reinforcement, the floor top reinforcement should with the girt strip upper reinforcement be positioned at layer and and the colligation of girt strip upper reinforcement firm, floor top reinforcement and interior intermode placement cushion block is with the assurance protective layer thickness;
(H) with template erection construction sidewalk, set up concrete delivery pump pipe, the concrete delivery pump pipe bottom is avoided being pressed on the floor bar, places flitch in the girt strip position, lays template on flitch, and concrete delivery pump pipe is set up in eminence;
(I) disturbing concrete, slump is got 16～22cm, if interior mold materials water absorption rate is big, then sprinkle water moistening after disturbing concrete again, water to smash and carry out successively forward since a side girder, cloth is even, avoid concrete to pile up the too high internal mold that damages by pressure a position, adopt the minor diameter vibrating spear or vibrating spear front end welding steel sheet is vibrated in the girt strip position, and vibrate successively, till not having bubble around the internal mold and emerging along the concreting direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100392430A CN101294433A (en) | 2008-06-20 | 2008-06-20 | Self-positioning permanent internal mold for cast-in-situ reinforced concrete structure and construction method thereof |
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| CNA2008100392430A CN101294433A (en) | 2008-06-20 | 2008-06-20 | Self-positioning permanent internal mold for cast-in-situ reinforced concrete structure and construction method thereof |
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| CN101294433A true CN101294433A (en) | 2008-10-29 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845867A (en) * | 2010-05-24 | 2010-09-29 | 李勇 | Assembled box body |
| CN102358790A (en) * | 2011-07-19 | 2012-02-22 | 李佃场 | Filling core mould for hydraulic engineering |
| CN103276901A (en) * | 2013-06-26 | 2013-09-04 | 陕西建工集团第十一建筑工程有限公司 | High-accuracy construction method for embedded pipes in cast-in-place concrete high and large-section reaction wall |
| CN103388400A (en) * | 2012-05-09 | 2013-11-13 | 甘顺明 | Construction method of reinforced and hard hollow slab core mould of permanent-arrangement fireproof outer casing |
| CN107327064A (en) * | 2016-04-29 | 2017-11-07 | 上海宝冶集团有限公司 | Thin-walled square chest anti-float method in arch without beam |
| CN110315632A (en) * | 2019-07-12 | 2019-10-11 | 重庆市搏双建材有限公司 | A kind of construction method of cast-in-place concrete gypsum core model anti-floating |
| CN111485656A (en) * | 2020-03-16 | 2020-08-04 | 上海二十冶建设有限公司 | Method for fixing filling internal mold of hollow sandwich floor slab |
| CN115142605A (en) * | 2022-08-12 | 2022-10-04 | 陕西建工第十六建设有限公司 | Technological method for controlling parameters of core mold and rib plate reinforcing steel bars of cast-in-place concrete hollow floor |
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2008
- 2008-06-20 CN CNA2008100392430A patent/CN101294433A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845867A (en) * | 2010-05-24 | 2010-09-29 | 李勇 | Assembled box body |
| CN102358790A (en) * | 2011-07-19 | 2012-02-22 | 李佃场 | Filling core mould for hydraulic engineering |
| CN102358790B (en) * | 2011-07-19 | 2012-10-31 | 李佃场 | Filling core mould for hydraulic engineering |
| CN103388400A (en) * | 2012-05-09 | 2013-11-13 | 甘顺明 | Construction method of reinforced and hard hollow slab core mould of permanent-arrangement fireproof outer casing |
| CN103276901A (en) * | 2013-06-26 | 2013-09-04 | 陕西建工集团第十一建筑工程有限公司 | High-accuracy construction method for embedded pipes in cast-in-place concrete high and large-section reaction wall |
| CN103276901B (en) * | 2013-06-26 | 2015-07-15 | 陕西建工集团第十一建筑工程有限公司 | High-accuracy construction method for embedded pipes in cast-in-place concrete high and large-section reaction wall |
| CN107327064A (en) * | 2016-04-29 | 2017-11-07 | 上海宝冶集团有限公司 | Thin-walled square chest anti-float method in arch without beam |
| CN110315632A (en) * | 2019-07-12 | 2019-10-11 | 重庆市搏双建材有限公司 | A kind of construction method of cast-in-place concrete gypsum core model anti-floating |
| CN111485656A (en) * | 2020-03-16 | 2020-08-04 | 上海二十冶建设有限公司 | Method for fixing filling internal mold of hollow sandwich floor slab |
| CN115142605A (en) * | 2022-08-12 | 2022-10-04 | 陕西建工第十六建设有限公司 | Technological method for controlling parameters of core mold and rib plate reinforcing steel bars of cast-in-place concrete hollow floor |
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