CN110847596A - High-rise concrete vertical decorative line composite formwork construction method - Google Patents
High-rise concrete vertical decorative line composite formwork construction method Download PDFInfo
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- CN110847596A CN110847596A CN201911230078.1A CN201911230078A CN110847596A CN 110847596 A CN110847596 A CN 110847596A CN 201911230078 A CN201911230078 A CN 201911230078A CN 110847596 A CN110847596 A CN 110847596A
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- aluminum
- mold
- template
- film covering
- vertical decorative
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a high-rise concrete vertical decorative line composite formwork construction method, which comprises the following steps: drawing an aluminum mold deepening design drawing and carrying out industrial production on the aluminum mold finished product; meanwhile, erecting a formwork support comprising a film-coated plate on a construction site, and manufacturing and installing vertical decorative line reinforcing steel bars; installing the finished aluminum mould and the back edge of the aluminum mould on the formwork support, and then reinforcing by using a counter-pull screw; and pouring concrete, and removing the aluminum mould finished product, the aluminum mould back edge and the mould support frame after solidification. The invention utilizes the aluminum template and the matching parts thereof to form a composite formwork system with enough strength and rigidity, and the concrete vertical decorative line formed by the aluminum template is not easy to have the quality problems of deformation, staggered joints, poor flatness and poor verticality.
Description
Technical Field
The invention relates to a construction method of a building formwork, in particular to a construction method of a high-rise concrete vertical decorative line composite formwork.
Background
In urban construction, whether public buildings, residential buildings or other types of building engineering, concrete vertical molding may be involved, which is particularly common in high-rise buildings. The appearance quality of the concrete vertical decorative lines directly influences the effect of the outer vertical surface of the building.
The vertical moulding of high-rise concrete generally adopts a formwork construction to accomplish, and its traditional formwork mode adopts the mode of establishing of laminating board plus wood tree and steel pipe, has following defect: in the construction process, because the rigidity of the film-coated plate is low, the conditions of deformation, tight abutted seams and the like are easy to occur, the hidden danger of the concrete quality is caused, and the appearance quality of the outer vertical surface is influenced.
Disclosure of Invention
The invention aims to solve the problems and provide a high-rise concrete vertical decorative line composite formwork construction method which is good in stability, high in bearing capacity, tight in abutted seam and good in forming effect.
The invention realizes the purpose through the following technical scheme:
a high-rise concrete vertical decorative line composite formwork construction method comprises the following steps:
step 1, drawing an aluminum mold deepening design drawing and carrying out industrial production on an aluminum mold finished product according to the drawing; meanwhile, erecting a formwork support comprising a film-coated plate on a construction site, and manufacturing and installing vertical decorative line reinforcing steel bars;
step 2, mounting the finished aluminum mold and the aluminum mold back edge on the mold support, and then reinforcing by using a counter-pulling screw;
and 3, pouring concrete, and removing the aluminum mold finished product, the aluminum mold back edge and the mold support frame after solidification.
Preferably, the step 2 comprises the following steps:
step 2.1, pre-assembling a plurality of aluminum die finished products to form an aluminum template;
step 2.2, cleaning all contact surfaces and edges of the pre-installed aluminum template, and then uniformly coating a release agent;
step 2.3, after the corner is stable and the inner angle mold is positioned according to the lofting line, installing an aluminum template, and placing the head of the pin in the inner angle mold as far as possible when the aluminum template is connected with the inner angle mold;
2.4, before closing the template, sleeving a PVC pipe outside the wall mold connecting piece, enabling the contact position of the PVC pipe and the film covering plates on the other two sides of the frame column to be accurate, enabling the film covering plates to be flush with the aluminum template after extending out of the film covering plates, nailing wood balms on the film covering plates to enable the film covering plates and the wood balms to be integrated, arranging C-shaped grooves for forming concrete vertical decorative lines on the aluminum template, connecting the film covering plates with the C-shaped grooves of the aluminum template through bolts, and additionally arranging reinforcing steel bar inner supports between the aluminum template and the film covering plates;
and 2.5, mounting an aluminum die back edge, and then mounting a counter-pulling screw rod for reinforcement.
In conclusion, the invention has the following beneficial effects:
the invention utilizes the aluminum template and the matching parts thereof to form a composite formwork system with enough strength and rigidity, and the concrete vertical decorative line formed by the aluminum template is not easy to have the quality problems of deformation, staggered joints, poor flatness and poor verticality.
More specifically, the present invention has the following advantages:
the supporting mode of the aluminum template is adopted, the section size of the concrete vertical decorative moulding can be customized and produced according to the actual engineering situation, and the aluminum template system is provided with the corresponding aluminum template back edge and the opposite-pulling screw rod, so that the assembly is simple and convenient during the construction of the aluminum template system;
the bearing capacity of the aluminum template system can reach 60KN per square meter, the requirement of the bearing capacity of the formwork is met, the stability is good, and the bearing capacity is high;
after the aluminum template is demolded, the surface quality of the concrete is flat and smooth, the requirements of a veneer and fair-faced concrete can be basically met, plastering is not needed, plastering cost can be saved, abutted seams are few, precision is high, and the surface effect of the concrete after demolded is good;
all accessories of the aluminum template system can be reused, after the template is disassembled during construction, no garbage is left on site, the structure of the supporting system is simple, and the disassembling is convenient, so that the whole construction environment is safe, clean and tidy;
after the aluminum template is scrapped, when the waste treatment residual value is high, the uniform cost advantage is obvious;
all materials of the aluminum template system are renewable materials, and the aluminum template system conforms to the national regulations on energy conservation, environmental protection, low carbon and emission reduction of building projects.
Detailed Description
The invention relates to a high-rise concrete vertical decorative line composite formwork construction method, which comprises the following steps:
step 1, drawing an aluminum mold deepening design drawing and carrying out industrial production on an aluminum mold finished product according to the drawing; meanwhile, erecting a formwork support comprising a film-coated plate on a construction site, and manufacturing and installing vertical decorative line reinforcing steel bars; in the step, according to the actual situation of the concrete vertical decorative line in the actual engineering, a detailed node diagram is drawn by classification and sectional design; typical dimensions of the finished aluminum die are: the vertical height is 2700mm, and the transverse width is 300 mm.
Step 2, mounting the finished aluminum mold and the aluminum mold back edge on the mold support, and then reinforcing by using a counter-pulling screw;
the method comprises the following specific steps:
step 2.1, pre-assembling a plurality of aluminum die finished products to form an aluminum template; before this step, the following preparation is firstly carried out: checking vertical line control lines and height marking lines of floors, wherein the control lines are 300mm away from the inner side lines of the frame columns, so that the position of the template can be checked, and the position can be used as the starting position of the end head of the template; preparing a release agent, a wood balk, a body guard rail, an operation platform wood springboard (the thickness of the wood springboard is not less than 50mm), a guardrail board and the like on a construction site;
step 2.2, cleaning all contact surfaces and edges of the pre-installed aluminum template, and then uniformly coating a release agent; when the release agent is coated for the first time, the aluminum template is required to be cleaned comprehensively to remove dirt and rust on the surface of the aluminum template, then the release agent can be coated, the release agent is thin and uniform, the leakage of the coating can be avoided, the excess or the deficiency can be avoided, the chromatic aberration of concrete can be avoided, the release agent can not be accumulated, when the coating is carried out, the surrounding environment is required to be noticed, the release agent is prevented from scattering on buildings, machines and tools and personal clothes, the coating can not be carried out on reinforcing steel bars, and the template coated with the release agent can not be placed for a long time to prevent rain or dust from falling on the template to influence the removal of the template;
step 2.3, after the corner is stable and the inner angle mold is positioned according to the lofting line, installing an aluminum template, and placing the head of the pin in the inner angle mold as far as possible when the aluminum template is connected with the inner angle mold; before this step, the following preparation work is firstly carried out: cleaning, flushing or cleaning sundries in the vertical line body by using an air blower, and coating a mortar leveling layer, wherein the mortar cannot enter the wall body; the ground height difference caused by the structure can be cushioned at the bottom of the template by a planed wood purlin bearing; when the ground is uneven due to construction quality and the height difference is small, the sponge strips can be glued with 401 on the ground where the template is located, so that slurry leakage is reduced; for the template with the suspended bottom, before the template is continuously installed, template bearing strips or belts (such as an external hanging rack, a double-row rack, a wood balk and the like) are arranged and are straightened; if the method of blocking mortar after the mortar is adopted, the mortar must be blocked according to the requirements in the first half day of pouring concrete at normal temperature, the bottom of the slab is prevented from being blocked by a cement bag, and the root rot phenomenon is avoided;
2.4, before closing the template, sleeving a PVC pipe on a wall mold connecting piece, enabling the contact position of the PVC pipe and the film covering plates on the other two sides of the frame column to be accurate, so that a counter-pull screw can be withdrawn after pouring, enabling the film covering plates to be flush with the aluminum template after extending out 65mm at the joint position of the film covering plates and the aluminum template, nailing wood balms on the film covering plates, enabling the film covering plates and 50mmx100mm wood balms to form a whole, arranging C-shaped grooves for forming concrete vertical decorative lines on the aluminum template, connecting the film covering plates with the width of 50mm and the C-shaped grooves of the aluminum template through bolts, and integrally removing the template, and providing double-layer K construction plates to ensure the integral pouring effect of the vertical lines and reduce the root rot degree of the positions of the joints;
and 2.5, mounting an aluminum die back edge for reinforcement, and then mounting a counter-pulling screw rod for reinforcement.
Step 3, pouring concrete, and removing the aluminum mold finished product, the aluminum mold back edge and the mold support frame after solidification; the steps are all conventional construction processes; before this step, the following checks are performed: 1. checking that all templates should be cleaned; 2. ensuring that the wall model is installed according to a lofting line; 3. checking whether the sizes of all openings are correct and do not have distortion deformation; 4. checking whether the wall mold and the aluminum mold back edge are correct or not; 5. the split screws, the pins and the wedges are checked to keep in-situ and firm; 6. checking the verticality of the vertical line by using a string hanging hammer or a laser scanner, and correcting, wherein the verticality deviation is controlled within 5 mm; 7. cleaning the rest materials and other objects out of the pouring area;
the following matters need to be noted when pouring concrete in the step:
1. maintenance during concrete pouring:
1) during the concrete pouring process, at least two operators need to wait for the connection inspection of pins, pin sheets and split screws on two sides of the wall being poured at any time;
2) the sliding of pins, wedges or diagonal screws can cause the displacement of the formwork and the damage of the formwork, and the areas affected by these need to be repaired after the formwork is removed;
2. notes during casting:
1) the pin and the pin plate fall off due to vibration;
2) the vibration causes the descending and sliding, so that the complete support is ensured, and particularly, the external wall moulding template support cannot be displaced;
3) the operator on standby must have the following tools (at hand): pins and wedges, adjustable supports, cement nails, woodworking saws and hammers, and some short battens with additional support pads (if necessary);
3. concrete matters after concrete pouring:
in order to ensure the concrete quality, three groups of cube test blocks with the same curing conditions are added during the concrete pouring construction, before the bottom die is removed, the test blocks are firstly tested and detected, or a resiliometer is detected on site, and after the strength meets the requirement, a supervision engineer approver is reported for removal;
in the step, the following matters need to be taken into consideration when the aluminum die finished product, the aluminum die back edge and the die support frame are dismantled:
1. the form removal time is determined according to the concrete conditions of engineering projects, and the wall form can be removed when the surface strength of concrete reaches 1.2MPa under general conditions;
2. before the vertical line formwork of the outer wall is removed, the following parts are ensured to be removed: all the skids, wales, ridges, pins and wedges on the formwork, which are nailed to the concrete slab, require special attention to safety issues when removing the pins and wedges in the external and hollow areas and also lose a large number of pins and wedges in a short time if the collecting material is not paid enough attention during the demolition;
3. the form removal work is started from the wall side, the work of extracting the split screws is started as far as possible, and if the form removal is early, only small force and little time are needed;
4. the installation of an outdoor scaffold on an outer wall is also important because the installation of a lower-layer template is carried out on the upper surface, and the counter-pulling screws are required to be placed in a proper area in order to prepare for the installation of the next layer when being removed;
5. cleaning is carried out immediately after all parts are disassembled, the earlier cleaning is better, the first template on the row to be disassembled is difficult to disassemble because of the connection with other adjacent templates, if proper cleaning and oiling work is carried out before pouring and a special form disassembling pull rod is used, the template is easy to disassemble, and if the rest templates are cleaned and oiled before use, the adjacent templates are easy to disassemble by using the special form disassembling pull rod;
6. the sleeve can be removed when the external wall decorative molding template is removed, and as the split screws are removed, the earlier the time for removing the sleeve from the wall is, the less the consumed time is, the damage can be reduced, so that each sleeve can obtain the maximum utilization rate, and the sleeve can be removed by the long-nose pincer. When the sleeve is removed, the sleeve is stored in the box for the next use;
7. when the template is transferred to another place, the template is marked and reasonably stacked in a proper place, which is very beneficial to the installation of the next wall form and can prevent the disorder of the work.
The effect of the present invention will be described in more detail below by taking the construction engineering of five buildings of a high-rise building.
The building consists of 4 high floors and 1 super high floor, the total height of the building is 99.9m and 139.9m, and the height of the vertical line is 97.35m and 139.25m respectively. The cost pairs of each vertical line adopting an aluminum die and a traditional film-coated plate are shown in the following table:
from the above table, the method of the invention is adopted to carry out the construction of the vertical decorative line of the high-rise concrete, and the economic benefit is obviously improved.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (2)
1. A high-rise concrete vertical decorative line composite formwork construction method is characterized by comprising the following steps: the method comprises the following steps:
step 1, drawing an aluminum mold deepening design drawing and carrying out industrial production on an aluminum mold finished product according to the drawing; meanwhile, erecting a formwork support comprising a film-coated plate on a construction site, and manufacturing and installing vertical decorative line reinforcing steel bars;
step 2, mounting the finished aluminum mold and the aluminum mold back edge on the mold support, and then reinforcing by using a counter-pulling screw;
and 3, pouring concrete, and removing the aluminum mold finished product, the aluminum mold back edge and the mold support frame after solidification.
2. The high-rise concrete vertical decorative line composite formwork construction method according to claim 1, characterized in that: the step 2 comprises the following steps:
step 2.1, pre-assembling a plurality of aluminum die finished products to form an aluminum template;
step 2.2, cleaning all contact surfaces and edges of the pre-installed aluminum template, and then uniformly coating a release agent;
step 2.3, after the corner is stable and the inner angle mold is positioned according to the lofting line, installing an aluminum template, and placing the head of the pin in the inner angle mold as far as possible when the aluminum template is connected with the inner angle mold;
2.4, before closing the template, sleeving a PVC pipe outside the wall mold connecting piece, enabling the contact position of the PVC pipe and the film covering plates on the other two sides of the frame column to be accurate, enabling the film covering plates to be flush with the aluminum template after extending out of the film covering plates, nailing wood balms on the film covering plates to enable the film covering plates and the wood balms to be integrated, arranging C-shaped grooves for forming concrete vertical decorative lines on the aluminum template, connecting the film covering plates with the C-shaped grooves of the aluminum template through bolts, and additionally arranging reinforcing steel bar inner supports between the aluminum template and the film covering plates;
and 2.5, mounting an aluminum die back edge, and then mounting a counter-pulling screw rod for reinforcement.
Priority Applications (1)
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| CN201911230078.1A CN110847596A (en) | 2019-12-04 | 2019-12-04 | High-rise concrete vertical decorative line composite formwork construction method |
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| CN201911230078.1A CN110847596A (en) | 2019-12-04 | 2019-12-04 | High-rise concrete vertical decorative line composite formwork construction method |
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