CN114737752A - Ultrahigh column pre-spliced steel mould and integral installation and construction method thereof - Google Patents
Ultrahigh column pre-spliced steel mould and integral installation and construction method thereof Download PDFInfo
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- CN114737752A CN114737752A CN202210286615.XA CN202210286615A CN114737752A CN 114737752 A CN114737752 A CN 114737752A CN 202210286615 A CN202210286615 A CN 202210286615A CN 114737752 A CN114737752 A CN 114737752A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 232
- 239000010959 steel Substances 0.000 title claims abstract description 232
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 title claims abstract description 13
- 239000004567 concrete Substances 0.000 claims abstract description 44
- 238000001125 extrusion Methods 0.000 claims abstract description 23
- 238000009415 formwork Methods 0.000 claims description 32
- 230000002787 reinforcement Effects 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 14
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 12
- 239000004570 mortar (masonry) Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002023 wood Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000002390 adhesive tape Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 4
- 238000009355 double cropping Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 5
- 239000000428 dust Substances 0.000 description 10
- 239000012535 impurity Substances 0.000 description 6
- 239000011440 grout Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
-
- 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
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
-
- 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
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
- E04G19/006—Cleaning devices
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a pre-spliced steel mould for an ultra-high column and an integral installation and construction method thereof, and relates to the technical field of steel mould construction. The ultrahigh column pre-assembled steel mould and the integral installation and construction method thereof comprise a column pre-assembled steel mould mechanism, wherein the column pre-assembled steel mould mechanism is provided with a U-shaped steel mould, the outer wall of the U-shaped steel mould is fixedly connected with a gas extrusion mechanism, the column pre-assembled steel mould mechanism is fixedly connected with the gas extrusion mechanism, the inner wall of the U-shaped steel mould is fixedly connected with a movable impact mechanism, and the column pre-assembled steel mould mechanism is fixedly connected with the movable impact mechanism. According to the super-high column pre-spliced steel mould and the integral installation and construction method thereof, after the U-shaped steel mould is dismantled, the base pulls the extrusion rod under the self gravity, the impact block and the first elastic plate shake under the driving of air flow, the bottom of the U-shaped steel mould and the inner wall of the U-shaped steel mould shake respectively, the vibration of the U-shaped steel mould can accelerate the falling of residual concrete on the U-shaped steel mould, and the adhesion of the concrete on the U-shaped steel mould is slowed down.
Description
Technical Field
The invention relates to the technical field of steel mould construction, in particular to a super high column pre-spliced steel mould and an integral installation construction method thereof.
Background
Along with the rapid development of commodity circulation harbour trade, in order to satisfy commodity circulation product processing turnover, large tracts of land large-span storage logistics workshop pulls out the ground, and this kind of logistics workshop mainly all adopts the steel construction in the past, but the requirement is stacked for better satisfying at present, and fire behavior requires, generally adopts large-span assembled reinforced concrete structure.
In traditional large-span assembled reinforced concrete structure, cast-in-place reinforced concrete column formwork support usually adopts template and steel pipe or square steel to set up, but this kind of formwork mode is higher to the layer height, the great stand of post cross sectional area, can have following problem: firstly, the turnover frequency of the wood template is less; secondly, when the structural layer is higher, an operation frame needs to be erected for high-altitude formwork support, and potential safety hazards are large during operation; and the template is easy to be damaged due to high-altitude operation during the template removal. In addition, the conventional wood formwork can cause the common quality problems of poor concrete forming quality, easy slurry leakage at the joint position and the like; the formwork erecting and pouring with too high floor height need to be carried out in a segmented mode, the construction period is long, and the perpendicularity cannot be guaranteed; the labor is high, and the construction needs to be matched in multiple directions.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a pre-assembly steel mould for an ultra-high column and an integral installation and construction method thereof.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a super high post splices steel mould in advance, splices steel mould mechanism in advance including the post, the post splices steel mould mechanism in advance and is provided with U shaped steel mould, the gaseous extrusion mechanism of outer wall fixedly connected with of U shaped steel mould, and the post splices steel mould mechanism and gaseous extrusion mechanism fixed connection in advance, the inner wall fixedly connected with activity striking mechanism of U shaped steel mould, and the post splices steel mould mechanism and activity striking mechanism fixed connection in advance.
Preferably, the post is pieced together steel mechanism in advance and is included U type steel mould, buckle and base, the equal fixedly connected with buckle in both sides of U type steel mould, the cavity has been seted up to the bottom of U type steel mould, the bottom of U type steel mould cavity is pegged graft and is had the base.
Preferably, gaseous extrusion mechanism includes extrusion stem, fixed block, first protruding piece, first elastic plate and first arc, the base top just is located the inside fixed position of U shaped steel mould cavity and is connected with the extrusion stem, gas outlet A has been seted up at U shaped steel mould top, U shaped steel mould inner wall is located gas outlet A's fixed position and is connected with the fixed block, the first arc of top fixedly connected with of fixed block, the first elastic plate of top fixedly connected with of first arc, the first protruding piece of position fixedly connected with that gas outlet A inner wall is adjacent to first elastic plate, the extrusion stem is made for rubber materials.
Preferably, two arc holes have been seted up to the tow sides of U shaped steel mould, the U shaped steel mould outer wall is located the fixedly connected with guide board in arc hole, the protruding piece of arc downthehole wall fixedly connected with second.
Preferably, the movable impact mechanism comprises an impact plate and a second elastic plate, the top of the base is provided with an air outlet B, the top of the base is located at the position of the air outlet B and fixedly connected with the impact plate, and the bottom of the impact plate is fixedly connected with the second elastic plate.
Preferably, the outer wall of the second elastic plate is fixedly connected with a second arc-shaped plate, the bottom of the second elastic plate is fixedly connected with an impact block, and the inner wall of the base is adjacent to the impact block and fixedly connected with two impacted blocks.
An integral installation and construction method of a pre-spliced steel mould of an ultra-high column comprises the following steps,
s1, embedding a corrugated pipe: the corrugated pipe is embedded in the short column and the bearing platform, the blanking length of the corrugated pipe is determined according to the design before embedding, and the lower opening of the embedded corrugated pipe is sealed by using a transparent adhesive tape and a plastic cover. And when the corrugated pipe is embedded, a pull ring is embedded in the bearing platform surface, and the diagonal steel wire rope is fixed in the later period to adjust the verticality of the column formwork. When embedding, the reinforcing mesh and the bearing platform reinforcing steel bar or the short column reinforcing steel bar are used for fixing, after fixing is completed, the PVC pipe is inserted into the corrugated pipe, and the corrugated pipe must be provided with two meshes and firmly fixed with the structural reinforcing steel bar. If the corrugated pipe is displaced in the pouring process, the position of the corrugated pipe must be adjusted. After the bearing platform and the short column are poured, the PVC pipe is pulled out, and a cover or an adhesive tape is covered at the corrugated pipe opening;
s2, pouring concrete on the bearing platform and the short column: pouring a bearing platform and a short column under the condition of confirming the pre-buried positioning of the pre-buried corrugated pipe, paying attention to the deviation condition of the corrugated pipe during pouring, and curing concrete after pouring is finished;
s3, binding a column reinforcement cage: the reinforcement can transport to the hoist and mount position after fixed place ligature is accomplished, also can adopt to remove the ligature frame and directly lift by crane in the ligature of suitable position on the post limit, and reinforcement cage ligature frame upright post lower extreme needs the bed wood, prevents that the stand from subsiding the reinforcement cage deformation that causes. After binding is finished, the column pre-splicing steel die mechanism can be hung in the experience folding grid;
s4, hoisting the reinforcement cage in place, and fixing the column in a hoisting and die assembly manner of the pre-assembly steel mechanism: a piece of column pre-assembly steel mechanism is horizontally placed on the ground, the column cap is as horizontal as possible, square timber is arranged below the other end of the column cap, the cantilever length is not more than 1.5m, the square timber is strictly arranged in the span of a handrail square pipe, the piece of column pre-assembly steel mechanism is reversely buckled on the lower column pre-assembly steel die mechanism, a crowbar is used for assisting, the column die bolt hole is aligned, and then the column pre-assembly steel die mechanism is slowly placed in place. First bolts at two ends are firstly penetrated and initially tightened, then all the bolts are penetrated and arranged by adjusting the levelness of the lower column pre-assembly steel mechanism, and final tightening is simultaneously carried out from two sides symmetrically. The torque must be as required and the bolts at the waist must be provided with two nuts. After the die is closed and fixed, the tool type protective railing is inserted into the square steel at the top of the column die and fixed firmly;
s5, leveling the column bottom and grouting in the short column hole: and (4) popping out the axis, the column center line and the column mold outer side line according to the construction site measurement control point. C50 mortar is used for leveling the bottom of the column mould, when the leveling layer is too high, battens with standard height are kept and fixed on the leveling layer, and the mortar of the leveling layer is strictly forbidden to enter the range of the section of the column. Then, a plurality of template fixing steel bars are planted at the root of the section of the column mould. After the preparation work is finished, immediately cleaning the short cylindrical surface garbage, draining water in the corrugated pipe on the bearing platform surface by using a column joint, then quickly filling the water into the hole by using a grouting funnel according to the strict mixing ratio, wherein the grouting surface is slightly lower than the orifice by about 10cm, and the time from the earliest starting time of grouting to the completion of inserting the steel bars into the column is not more than 30 minutes;
s6, pre-splicing a steel die mechanism for a lifting column and adjusting verticality: after the two-piece column pre-assembly steel mechanism is fixed, the main hook and the auxiliary hook simultaneously ascend to lift the column formwork to a certain height from the ground, the main hook is lifted to lift the column formwork to be in a vertical state, and the main hook is additionally hung with the cross beam shoulder pole to be connected with the upper end of the column formwork. And (3) hoisting the column to the position near the short column or the bearing platform, supporting the column pre-splicing steel mould mechanism by 3-4 persons, and slowly lowering the column to the surrounding cushion plates or cushion layers after the column steel bars are aligned with the corrugated pipe. At the moment, under the state that the crane loosens the steel wire rope but does not unhook, the steel wire rope wind ropes on the four sides of the column formwork and the embedded pull rings of the bearing platform are tied through a 3t wire grip or a (3 t hoist), the verticality is checked by using a theodolite or a line plumb hung on the column formwork, the wire grip in each direction is regulated in a pointing manner, and the wire grip is tightened after the verticality is confirmed;
s7, pouring concrete: and pouring mortar with the same grade and with the same grade in a step of 0.3m for double cropping before pouring the concrete, and pouring the concrete. Vibrating by two vibrating pumps at the same time, and slowly lifting until the top of the column is reached;
s8, removing the die steel die: after concrete is cast for more than 12 hours, the steel wire ropes of the concrete columns can be loosened. Firstly, removing a wedge-shaped die connecting bolt at the lower part of a column pre-assembly steel mechanism, then knocking the bolt loose by an iron hammer, then removing the wedge-shaped die by a crowbar, and then taking out a wood cushion block for mounting the short column or the bearing table surface. And removing all the bolts except the pair at the lowest end of the upper steel template, hanging the lifting hooks or one piece of the hook on the two templates, and hanging the safety belt on the other piece of the template and the column main rib. After one column form is hung off, installing a form-removing support, hanging a hoisting hook on the column form, and jacking and hoisting away the other column form by using a jack;
s9, concrete curing: and (5) watering and maintaining by using a water gun immediately after the mold is removed.
The invention provides a super high column pre-spliced steel mould and an integral installation and construction method thereof. The method has the following beneficial effects:
1. this super high post is pieced together steel mould in advance and monolithic erection construction method thereof, the bottom through U type steel mould has set up the base, and then utilized the dead weight of U type steel mould and base, and then the flow of production air current, the dust of U type steel mould outer wall can be accelerated in the flow of air current drops, the bore setting of U type steel mould gas outlet is less, then make the gas that is not blown out compressed, the velocity of flow of air can be increased then in the gaseous discharge of compression, the getting rid of dust on the U type steel mould has been ensured, and the gaseous compression makes the interval between the molecule reduce in the air, make the air temperature rise, then make U type steel mould follow the temperature rise, the surface concrete of concrete in the U type steel mould has been accelerated in the rising of U type steel mould temperature, further avoided the concrete adhesion at U type steel mould inner wall.
2. This super high post splices steel mould in advance and whole installation construction method thereof, blow off through the air current, and then make first elastic plate stretch out, under the guide of first elastic plate, make the air current blow the top of U type steel mould, the dust impurity etc. at clearance U type steel mould top, the laminating each other of two U type steel moulds has been ensured, the air current blow off drive second arc activity and then drive the striking block activity, striking block and the striking block strike each other, then make the dust of U type steel mould inner wall drop, the shaping of concrete has been ensured.
3. According to the ultrahigh column pre-assembled steel mould and the integral installation and construction method thereof, after the U-shaped steel mould is detached, the base pulls the extrusion rod under the self gravity, the impact block and the first elastic plate shake under the driving of airflow, the bottom of the U-shaped steel mould and the inner wall of the U-shaped steel mould shake respectively, the vibration of the U-shaped steel mould can accelerate the residual concrete on the U-shaped steel mould to drop, and the concrete adhesion on the U-shaped steel mould is slowed down.
Drawings
FIG. 1 is a schematic axial side perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the portion B-B of FIG. 1 according to the present invention;
FIG. 3 is a schematic cross-sectional view of the portion A-A of FIG. 1 according to the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 2 according to the present invention;
FIG. 5 is an enlarged view of the portion B of FIG. 2 according to the present invention;
FIG. 6 is an enlarged view of the portion C of FIG. 3 according to the present invention.
In the figure: 1. a column pre-splicing steel die mechanism; 11. u-shaped steel dies; 12. buckling; 13. a base; 2. a gas extrusion mechanism; 21. an extrusion stem; 22. a fixed block; 23. a first raised block; 24. a first elastic plate; 25. a first arc-shaped plate; 26. a guide plate; 27. a second raised block; 28. an arc-shaped hole; 3. a movable impact mechanism; 31. an impact plate; 32. a second elastic plate; 33. a shot block; 34. an impact block; 35. a second arcuate plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a steel mould is pieced together in advance to super high post, includes that the post is pieced together steel mould mechanism 1 in advance, and steel mould mechanism 1 is pieced together in advance to the post is provided with U type steel mould 11, and the outer wall fixedly connected with gas extrusion mechanism 2 of U type steel mould 11, and the post is pieced together steel mould mechanism 1 and gas extrusion mechanism 2 fixed connection in advance, and the inner wall fixedly connected with activity striking mechanism 3 of U type steel mould 11, and the post is pieced together steel mould mechanism 1 and activity striking mechanism 3 fixed connection in advance.
In this embodiment, when the U-shaped steel die 11 is placed on a plane, the gravity of the U-shaped steel die 11 extrudes the base 13, and then the base 13 drives the extrusion rod 21 to extrude the gas in the cavity of the U-shaped steel die 11.
Specifically, the post is pieced together steel mould mechanism 1 in advance and is included U shaped steel mould 11, buckle 12 and base 13, the equal fixedly connected with buckle 12 in both sides of U shaped steel mould 11, and the cavity has been seted up to the bottom of U shaped steel mould 11, and it has base 13 to peg graft in the bottom of U shaped steel mould 11 cavity.
In this embodiment, the air flows are discharged from the two air outlets of the U-shaped steel die 11, and the air outlets are arranged to be smaller, so that the speed of the blown air flow is reduced, the air which is not blown out immediately is squeezed by the base 13 in the U-shaped steel die 11, and the flow speed of the air flow discharged after the air is compressed is increased.
Specifically, gas extrusion mechanism 2 includes the stripper bar 21, the fixed block 22, first protruding piece 23, first elastic plate 24 and first arc 25, 13 tops of base and be located the inside fixed position of 11 cavities of U shaped steel mould have the stripper bar 21, gas outlet A has been seted up at 11 tops of U shaped steel mould, 11 inner walls of U shaped steel mould are located gas outlet A's fixed position fixedly connected with fixed block 22, the first arc 25 of the top fixedly connected with of fixed block 22, the first elastic plate 24 of the top fixedly connected with of first arc 25, the gas outlet A inner wall is adjacent to the first protruding piece 23 of the fixed position fixedly connected with of first elastic plate 24.
In this embodiment, after the air flow is blown out from the air outlet where the first elastic plate 24 is located, the air flow is blown onto the first arc-shaped plate 25, so that the first elastic plate 24 is lifted and moved, the first elastic plate 24 is lifted and collides with the first protruding block 23 to be deflected left and right, and the air flow is blown out left and right, and the dust, impurities and the like on the top of the U-shaped steel die 11 can be cleaned by the blown air flow.
Specifically, two arc holes 28 have been seted up to the tow sides of U shaped steel mould 11, and the position fixedly connected with guide board 26 that U shaped steel mould 11 outer wall is located arc hole 28, and arc hole 28 inner wall fixedly connected with second protruding piece 27.
In this embodiment, the airflow is blown out from the arc-shaped hole 28, and the blowing-out of the airflow drives the guide plate 26 to collide with the second protruding block 27, so that the guide plate 26 is movable to guide the airflow, and the guided airflow is blown towards the U-shaped steel die 11 to clean dust on two sides of the U-shaped steel die 11.
Specifically, activity striking mechanism 3 includes striking plate 31 and second elastic plate 32, and gas outlet B has been seted up at the top of base 13, and the fixed connection in position that base 13 top is located gas outlet B has striking plate 31, and the bottom fixed connection of striking plate 31 has second elastic plate 32.
In this embodiment, when the air current blew off from the gas outlet at striking plate 31 place, the air current blew off on the second arc 35, and then drive second elastic plate 32 and striking plate 31 activity, striking plate 31 strikes the inner wall of base 13, and striking block 34 is followed the activity of second elastic plate 32 and is strikeed to receiving striking block 33, then drives U shaped steel mould 11 and takes place vibrations, and the vibrations on the U shaped steel mould 11 have accelerateed the acceleration of dust impurity and have dropped on the U shaped steel mould 11.
Specifically, the outer wall of the second elastic plate 32 is fixedly connected with a second arc-shaped plate 35, the bottom of the second elastic plate 32 is fixedly connected with an impact block 34, and the inner wall of the base 13 is fixedly connected with two impact blocks 33 at positions adjacent to the impact block 34.
In this embodiment, the airflow drives the impact block 34 to move, so as to vibrate the U-shaped steel mold 11, thereby slowing down the adhesion of the concrete residue to the bottom in the U-shaped steel mold 11.
An integral installation and construction method of a pre-spliced steel mould of an ultra-high column comprises the following steps,
s1, embedding a corrugated pipe: the corrugated pipe is embedded in the short column and the bearing platform, the blanking length of the corrugated pipe is determined according to the design before embedding, and the lower opening of the embedded corrugated pipe is sealed by using a transparent adhesive tape matched with a plastic cover. And (4) embedding a pull ring on a bearing platform surface while embedding the corrugated pipe, and fixing the diagonal steel wire rope to adjust the verticality of the column formwork in the later period. When embedding, the reinforcing mesh and the bearing platform reinforcing steel bar or the short column reinforcing steel bar are used for fixing, after fixing is completed, the PVC pipe is inserted into the corrugated pipe, and the corrugated pipe must be provided with two meshes and firmly fixed with the structural reinforcing steel bar. If the corrugated pipe is displaced in the pouring process, the position of the corrugated pipe must be adjusted. After the bearing platform and the short column are poured, the PVC pipe is pulled out, and a cover or an adhesive tape is covered at the corrugated pipe opening;
s2, pouring concrete on the bearing platform and the short column: pouring a bearing platform and a short column under the condition of confirming the pre-buried positioning of the pre-buried corrugated pipe, paying attention to the deviation condition of the corrugated pipe during pouring, and curing concrete after pouring is finished;
s3, binding a column reinforcement cage: the reinforcement can transport to the hoist and mount position after fixed place ligature is accomplished, also can adopt to remove the ligature frame and directly lift by crane in the ligature of suitable position on the post limit, and reinforcement cage ligature frame upright post lower extreme needs the bed wood, prevents that the stand from subsiding the reinforcement cage deformation that causes. After binding is finished, the column pre-splicing steel die mechanism 1 can be hung in an experience folding grid;
s4, hoisting the reinforcement cage in place, and fixing the column pre-assembled steel die mechanism 1 in hoisting, closing and assembling: the steel mould mechanism is characterized in that a piece of column pre-assembly steel mould mechanism 1 is flatly placed and coated with the above-ground demoulding oil, the seam position is strictly prevented from being coated with the above-ground demoulding oil, a firm foam strip is pasted at the seam position and the abnormal transfer position, the foam strip falling condition in the mould closing process is prevented, the column cap position is as horizontal as possible, square timber is arranged below the other end of the column cap, the overhanging length is not more than 1.5m, the square timber is strictly prevented from being arranged in the span of a handrail square pipe, the deformation of the square pipe is avoided, the inclination of the square timber is adjusted, and the column mould torsion is reduced as much as possible. And reversely buckling a piece of column pre-assembly steel die mechanism 1 on the lower column pre-assembly steel die mechanism 1, aligning the column pre-assembly steel die mechanism 1 with a crowbar to a column die bolt hole, and slowly positioning. First bolts at two ends are firstly penetrated and initially tightened, then all the bolts are penetrated and arranged by adjusting the levelness of the lower column pre-assembly steel die mechanism 1, and final tightening is simultaneously carried out from two sides symmetrically. The torque must meet the requirement to avoid slurry leakage at the joints, and the bolt at the waist position must be provided with two nuts. After the die is closed and fixed, the tool type protective railing is inserted into the square steel at the top of the column die and fixed firmly;
s5, leveling the column bottom and grouting in the short column hole: and (4) popping out the axis, the column center line and the column mold outer side line according to the construction site measurement control point. C50 mortar is used for leveling the bottom of the column mould, when the leveling layer is too high, battens with standard height are kept and fixed on the leveling layer, and the mortar of the leveling layer is strictly forbidden to enter the range of the section of the column. Then, a plurality of template fixing steel bars are planted at the root of the section of the column mould. After the preparation work is finished, immediately cleaning the short cylindrical surface garbage, draining water in the corrugated pipe on the bearing platform surface by using a column joint, then quickly filling the water into the hole by using a grouting funnel according to the strict mixing ratio, wherein the grouting surface is slightly lower than the orifice by about 10cm, and the time from the earliest starting time of grouting to the completion of inserting the steel bars into the column is not more than 30 minutes;
s6, pre-splicing the steel die mechanism 1 by the lifting column, and adjusting the verticality: after the two-piece column pre-splicing steel die mechanism 1 is fixed, the main hook and the auxiliary hook are lifted simultaneously to lift the column die to a certain height from the ground, the main hook is lifted to lift the column die to a vertical state, and in order to avoid collision of a steel wire with a tool type guard rail and the like, the main hook is additionally hung with a cross beam shoulder pole to be connected with the upper end of the column die. And (3) hoisting the column to the position near the short column or the bearing platform, supporting the pre-assembled steel mould mechanism 1 by 3-4 persons, and slowly lowering the column to the surrounding cushion plates or cushion layers after the steel bars of the column are aligned with the corrugated pipe. At the moment, under the state that the crane loosens the steel wire rope but does not unhook, the steel wire rope wind ropes on the four sides of the column formwork and the embedded pull rings of the bearing platform are tied through a 3t wire grip or a 3t hoist, the verticality is checked by a theodolite or a line plumb hung on the column formwork, the wire grip in each direction is instructed to be adjusted, and the wire grip is tightened after the verticality is confirmed;
s7, pouring concrete: and pouring mortar with the same grade and with the same grade in a step of 0.3m for double cropping before pouring the concrete, and pouring the concrete. Vibrating by two vibrating pumps at the same time, and slowly lifting until the top of the column;
s8, removing the die steel die: after concrete is cast for more than 12 hours, the steel wire ropes of the concrete columns can be loosened. Firstly removing a wedge-shaped die connecting bolt at the lower part of a column pre-splicing steel die mechanism 1, then knocking the bolt loose by an iron hammer, then removing the wedge-shaped die by a crowbar, and then taking out a wood cushion block for mounting a short column or a bearing table surface. All the bolts except the pair at the lowest end of the upper steel template are removed, the two templates are hung on a lifting hook or a hook, and the other template and the column main rib are hung on a safety belt. After one piece of column formwork is hung, installing a formwork detaching support, hanging a lifting hook on the column formwork, and jacking and hanging away the other piece of column formwork by using a jack;
s9, concrete curing: and (5) watering and maintaining by using a water gun immediately after the mold is removed.
When the corrugated pipe is used, the corrugated pipe is embedded in the short column and the bearing platform, the blanking length of the corrugated pipe is determined according to the design before embedding, and the lower opening of the embedded corrugated pipe is sealed by using a transparent adhesive tape and a plastic cover. And when the corrugated pipe is embedded, a pull ring is embedded in the bearing platform surface, and the diagonal steel wire rope is fixed in the later period to adjust the verticality of the column formwork. When embedding, the reinforcing mesh and the bearing platform reinforcing steel bar or the short column reinforcing steel bar are used for fixing, after fixing is completed, the PVC pipe is inserted into the corrugated pipe, and the corrugated pipe must be provided with two meshes and firmly fixed with the structural reinforcing steel bar. If the corrugated pipe is displaced in the pouring process, the position of the corrugated pipe must be adjusted. After cushion cap and short column are pour and are accomplished, extract the PVC pipe, cover or sticky tape, cushion cap, short column concrete placement at corrugated pipe mouth department: the pre-buried location of pre-buried bellows is confirmed down, carries out cushion cap and short column and pours, pays close attention to the off normal condition of bellows during pouring, pours and carries out the concrete maintenance after accomplishing, post steel reinforcement cage ligature: steel bar binding can be transported to a hoisting position after the binding in a fixed field is completed, the binding at a proper position on the side of the column can be directly lifted by adopting a movable binding frame, and the lower end of the vertical column of the steel bar cage binding frame needs a square timber to be padded, so that the deformation of the steel bar cage caused by the sedimentation of the vertical column is prevented. After the ligature is accomplished, experience is closed the check side and can be hung into the post and piece together steel mould mechanism 1 in advance, and the steel reinforcement cage hoist is taken one's place, the post is pieced together steel mould mechanism 1 hoist and mount compound die in advance and is fixed: a sheet of column pre-assembled steel die mechanism 1 is horizontally placed on the ground, the column cap is as horizontal as possible, a square timber is padded under the other end of the column cap, the overhanging length is not more than 1.5m, the square timber is strictly arranged in the span of a handrail square pipe, when a U-shaped steel die 11 is placed on a plane, the gravity of the U-shaped steel die 11 extrudes a base 13, the base 13 drives an extrusion rod 21 to extrude gas in the cavity of the U-shaped steel die 11, the gas flow is discharged from two gas outlets of the U-shaped steel die 11, the gas outlet is smaller, the speed of the blown gas flow is reduced, the gas which is not blown out immediately is extruded by the base 13 in the U-shaped steel die 11, the flow speed of the gas discharged after compression is increased, the gas flow is blown out from the gas outlet where a first elastic plate 24 is located, the gas flow is blown onto the first arc-shaped plate 25, the first elastic plate 24 is then lifted and moved, the first elastic plate 24 rises to impact a first convex block 23 to cause left and right deflection, and then guide the air current to blow off from the left and right, the air current can clean up the dust and impurities on the top of the U-shaped steel die 11, so that the two U-shaped steel dies 11 can be attached to each other, the air current blows off from the arc-shaped hole 28, the air current blows off to drive the guide plate 26 to collide with the second protrusion block 27, then the guide plate 26 is movable to guide the air current, the guided air current blows to the U-shaped steel die 11, the dust on the two sides of the U-shaped steel die 11 is cleaned, when the air current blows off from the air outlet of the collision plate 31, the air current blows on the second arc-shaped plate 35, and then the second elastic plate 32 and the collision plate 31 are driven to move, the collision plate 31 collides with the inner wall of the base 13, the collision block 34 collides with the collision block 33 along with the movement of the second elastic plate 32, and then drives the U-shaped steel die 11 to vibrate, the vibration on the U-shaped steel die 11 accelerates the acceleration of the dust and impurities on the U-shaped steel die 11 to fall, and reversely buckles the one-shaped pre-splicing die mechanism 1 on the lower post pre-splicing mechanism 1, assisted by a crowbar, aligned with the stud bolt holes and then slowly set in place. First bolts at two ends are firstly penetrated and initially tightened, then all the bolts are penetrated and arranged by adjusting the levelness of the lower column pre-assembly steel die mechanism 1, and final tightening is simultaneously carried out from two sides symmetrically. The torque must meet the requirement to avoid slurry leakage at the joints, and the bolt at the waist position must be provided with two nuts. After the compound die is fixed, insert the fixed firm in post mould top square steel with instrument formula protection railing, make level and the downthehole grout of short column bottom: and (4) popping out the axis, the column center line and the column mold outer side line according to the construction site measurement control point. C50 mortar is used for leveling the bottom of the column mould, when the leveling layer is too high, battens with standard height are kept and fixed on the leveling layer, and the mortar of the leveling layer is strictly forbidden to enter the range of the section of the column. Then, a plurality of template fixing steel bars are planted at the root of the section of the column mould. After the preparation work in the front is accomplished, clear up short cylinder rubbish immediately, the column joint should be clean with the log raft in the bellows at the cushion cap face, then will follow the fast pouring downthehole of proportion configuration strictly according to the proportion with the grout funnel, the grout face slightly is less than about 10cm in drill way, the earliest starting time of grout to post completion joint bar time must not be greater than 30 minutes, plays the davit and splices steel form mechanism 1, the straightness is adjusted that hangs down in advance: after the two-piece column pre-splicing steel die mechanism 1 is fixed, the main hook and the auxiliary hook simultaneously ascend to lift the column die to a certain height from the ground, the main hook is lifted to lift the column die to a vertical state, and in order to avoid collision of a steel wire with a tool type guard rail and the like, the main hook additionally hangs a cross beam shoulder pole and is connected with the upper end of the column die. And (3) hoisting the column to the position near the short column or the bearing platform, supporting the pre-assembled steel mould mechanism 1 by 3-4 persons, and slowly lowering the column to the surrounding cushion plates or cushion layers after the steel bars of the column are aligned with the corrugated pipe. At this moment, the steel wire ropes are loosened by the crane, but under the unhooking state, the steel wire rope wind ropes on the four sides of the column formwork and the embedded pull rings of the bearing platform are tied through a 3t wire grip or a 3t hoist, the verticality is checked by a theodolite or a line hung on the column formwork, and the wire grip in each direction is guided and adjusted, and the wire grip is tightened after the verticality is confirmed, and concrete is poured: and pouring mortar with the same grade and with the same grade in a step of 0.3m for double cropping before pouring the concrete, and pouring the concrete. Adopting two vibrating pumps to vibrate simultaneously, slowly lifting until the top of the column, and dismantling a die steel die: after concrete is tamped for more than 12 hours, the steel wire ropes of the concrete columns can be loosened. Firstly, removing a wedge-shaped die connecting bolt at the lower part of a column pre-splicing steel die mechanism 1, then knocking the bolt loose by an iron hammer, then removing the wedge-shaped die by a crowbar, and then taking out a wood cushion block for mounting a short column or a bearing table surface. And removing all the bolts except the pair at the lowest end of the upper steel template, hanging the lifting hooks or one piece of the hook on the two templates, and hanging the safety belt on the other piece of the template and the column main rib. After a piece of column formwork is hung off, installing a form-removing support, hanging a hoisting hook on the column formwork, jacking the other piece of column formwork by using a jack, hanging the other piece of column formwork away, and curing the concrete: adopt the squirt to water the maintenance immediately after the form removal, after taking apart two U type steel forms 11, base 13 under U type steel form 11 moves under the gravity of self, and then make base 13 drive the activity of extrusion stem 21, and then make U type steel form 11's air inlet produce suction, the air current is when the air inlet, the air current drives first arc 25 and rocks, and then make the 24 striking of first elastic plate at U type steel form 11 inner wall, make U type steel form 11 inner wall produce vibrations, concrete impurity on the U type steel form 11 inner wall drops with higher speed, the air current drives the activity of striking block 34, and then make U type steel form 11 vibrations, the remaining adhesion that has slowed down the concrete is in U type steel form 11 bottom.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides an ultra-high column splices steel mould in advance, splices steel mould mechanism (1) including the post in advance, its characterized in that: the post is pieced together steel mould mechanism (1) in advance and is provided with U shaped steel mould (11), the gaseous extrusion mechanism of outer wall fixedly connected with (2) of U shaped steel mould (11), and the post is pieced together steel mould mechanism (1) and gaseous extrusion mechanism (2) fixed connection in advance, the inner wall fixedly connected with activity striking mechanism (3) of U shaped steel mould (11), and the post is pieced together steel mould mechanism (1) and activity striking mechanism (3) fixed connection in advance.
2. The ultrahigh column pre-spliced steel die of claim 1, which is characterized in that: the column pre-splicing steel die mechanism (1) comprises a U-shaped steel die (11), buckles (12) and a base (13), wherein the buckles (12) are fixedly connected to the two sides of the U-shaped steel die (11), a cavity is formed in the bottom of the U-shaped steel die (11), and the base (13) is inserted into the bottom of the cavity of the U-shaped steel die (11).
3. The ultrahigh column pre-spliced steel die of claim 2, wherein: gaseous extrusion mechanism (2) are including extrusion stem (21), fixed block (22), first protruding piece (23), first elastic plate (24) and first arc (25), base (13) top just is located inside position fixedly connected with extrusion stem (21) of U shaped steel mould (11) cavity, gas outlet A has been seted up at U shaped steel mould (11) top, U shaped steel mould (11) inner wall is located gas outlet A's position fixedly connected with fixed block (22), the first arc (25) of the top fixedly connected with of fixed block (22), the first elastic plate (24) of the top fixedly connected with of first arc (25), the first protruding piece (23) of the position fixedly connected with of gas outlet A inner wall adjacent to first elastic plate (24).
4. The ultrahigh column pre-spliced steel die of claim 1, which is characterized in that: two arc holes (28) have been seted up to the tow sides of U shaped steel mould (11), U shaped steel mould (11) outer wall is located the position fixedly connected with guide board (26) in arc hole (28), arc hole (28) inner wall fixedly connected with second protruding piece (27).
5. The ultrahigh column pre-spliced steel die of claim 2, wherein: activity striking mechanism (3) are including striking board (31) and second elastic plate (32), gas outlet B has been seted up at the top of base (13), base (13) top is located gas outlet B's fixedly connected with striking board (31), the bottom fixedly connected with second elastic plate (32) of striking board (31).
6. The ultrahigh column pre-spliced steel die of claim 5, wherein: the outer wall fixedly connected with second arc (35) of second elastic plate (32), the bottom fixedly connected with striking piece (34) of second elastic plate (32), two piece (33) of being struck of fixedly connected with in the position that base (13) inner wall is adjacent to striking piece (34).
7. The integral installation and construction method of the ultrahigh column pre-spliced steel die is characterized by comprising the following steps of: the method comprises the following steps of (1),
s1, embedding a corrugated pipe: the corrugated pipe is embedded in the short column and the bearing platform, the blanking length of the corrugated pipe is determined according to the design before embedding, and the lower opening of the embedded corrugated pipe is sealed by using a transparent adhesive tape and a plastic cover. And (4) embedding a pull ring on a bearing platform surface while embedding the corrugated pipe, and fixing the diagonal steel wire rope to adjust the verticality of the column formwork in the later period. When embedding, the reinforcing mesh and the bearing platform reinforcing steel bar or the short column reinforcing steel bar are used for fixing, after fixing is completed, the PVC pipe is inserted into the corrugated pipe, and the corrugated pipe must be provided with two meshes and firmly fixed with the structural reinforcing steel bar. If the corrugated pipe is displaced in the pouring process, the position of the corrugated pipe must be adjusted. After the bearing platform and the short column are poured, the PVC pipe is pulled out, and a cover or an adhesive tape is covered at the corrugated pipe opening;
s2, pouring concrete on the bearing platform and the short column: pouring a bearing platform and a short column under the condition of confirming the pre-buried positioning of the pre-buried corrugated pipe, paying attention to the deviation condition of the corrugated pipe during pouring, and curing concrete after pouring is finished;
s3, binding a column reinforcement cage: the reinforcement can transport to the hoist and mount position after fixed place ligature is accomplished, also can adopt to remove the ligature frame and directly lift by crane in the ligature of suitable position on the post limit, and reinforcement cage ligature frame upright post lower extreme needs the bed wood, prevents that the stand from subsiding the reinforcement cage deformation that causes. After binding is finished, the experience folding grid can be hung into the column pre-splicing steel die mechanism (1);
s4, hoisting the reinforcement cage in place, hoisting the column pre-assembled steel die mechanism (1) and closing the die for fixation: a piece of post is spliced in advance steel mould mechanism (1) keep flat with subaerial, and cap of the post department is as far as possible level, and the square timber of backing up under the cap of the post other end, the length of encorbelmenting is not more than 1.5m, and the square timber is forbidden to be located the span of handrail square pipe, and a piece of post is spliced in advance steel mould mechanism (1) left-hand thread on lower part post is spliced in advance steel mould mechanism (1), is assisted with the crow bar, aims at post mould bolt hole, then slowly takes one's place. First bolts at two ends are firstly penetrated and initially tightened, then all the bolts are penetrated and arranged simultaneously by adjusting the levelness of the lower column pre-assembly steel die mechanism (1), and final tightening is simultaneously carried out symmetrically from two sides. The torque must be as required and the bolts at the waist must be provided with two nuts. After the die is closed and fixed, the tool type protective railing is inserted into the square steel at the top of the column die and fixed firmly;
s5, leveling the column bottom and grouting in the short column hole: and (4) popping out the axis, the column center line and the column mold outer side line according to the construction site measurement control point. And C50 mortar is used for leveling the bottom of the column mould, when the leveling layer is too high, battens with standard heights are kept and fixed on the leveling layer, and the mortar of the leveling layer is strictly forbidden to enter the range of the section of the column. Then, a plurality of template fixing steel bars are planted at the root of the section of the column mold. After the preparation work is finished, immediately cleaning the short cylindrical surface garbage, draining water in the corrugated pipe on the bearing platform surface by using a column joint, then quickly filling the water into the hole by using a grouting funnel according to the strict mixing ratio, wherein the grouting surface is slightly lower than the orifice by about 10cm, and the time from the earliest starting time of grouting to the completion of inserting the steel bars into the column is not more than 30 minutes;
s6, pre-splicing the steel die mechanism (1) by the lifting column, and adjusting the verticality: after the two-piece column pre-assembly steel die mechanism (1) is fixed, the main hook and the auxiliary hook simultaneously ascend to lift the column die to a certain height from the ground, the main hook is lifted to lift the column die to be in a vertical state, and the main hook additionally hangs the cross beam shoulder pole to be connected with the upper end of the column die. And (3) hoisting the column to the position near the short column or the bearing platform, holding the pre-assembled steel mould mechanism (1) of the column by 3-4 persons, and slowly lowering the column to the surrounding cushion plates or cushion layers after the steel bars of the column are aligned with the corrugated pipe. At the moment, under the state that the crane loosens the steel wire rope but does not unhook, the steel wire rope wind ropes on the four sides of the column formwork and the embedded pull rings of the bearing platform are tied through a 3t wire grip or a (3 t hoist), the verticality is checked by using a theodolite or a line plumb hung on the column formwork, the wire grip in each direction is regulated in a pointing manner, and the wire grip is tightened after the verticality is confirmed;
s7, pouring concrete: and pouring mortar with the same grade and with the same grade in a step of 0.3m for double cropping before pouring the concrete, and pouring the concrete. Vibrating by two vibrating pumps at the same time, and slowly lifting until the top of the column;
s8, removing the die steel die: after concrete is tamped for more than 12 hours, the steel wire ropes of the concrete columns can be loosened. Firstly, removing a wedge-shaped die connecting bolt at the lower part of a column pre-splicing steel die mechanism (1), then knocking and loosening by using an iron hammer, then removing the wedge-shaped die by using a crowbar, and then taking out a wood cushion block for mounting a short column or a bearing table surface. All the bolts except the pair at the lowest end of the upper steel template are removed, the two templates are hung on a lifting hook or a hook, and the other template and the column main rib are hung on a safety belt. After one piece of column formwork is hung, installing a formwork detaching support, hanging a lifting hook on the column formwork, and jacking and hanging away the other piece of column formwork by using a jack;
s9, concrete curing: and (5) watering and maintaining by using a water gun immediately after the mold is removed.
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| US20150292229A1 (en) * | 2012-10-30 | 2015-10-15 | Technische Universität Wien | Method for producing a tower construction from reinforced concrete |
| CN110206227A (en) * | 2019-05-10 | 2019-09-06 | 中天建设集团有限公司 | A kind of superelevation column template reinforcing bar integral hoisting construction method |
| CN110682433A (en) * | 2019-10-09 | 2020-01-14 | 南通创为机械科技有限公司 | Prefabricated stand column construction scheme |
| 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 |
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|---|---|---|---|---|
| US20150292229A1 (en) * | 2012-10-30 | 2015-10-15 | Technische Universität Wien | Method for producing a tower construction from reinforced concrete |
| CN110206227A (en) * | 2019-05-10 | 2019-09-06 | 中天建设集团有限公司 | A kind of superelevation column template reinforcing bar integral hoisting construction method |
| CN110682433A (en) * | 2019-10-09 | 2020-01-14 | 南通创为机械科技有限公司 | Prefabricated stand column construction scheme |
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