CN111779259A - Construction method of aluminum alloy template suitable for molding of special-shaped structure - Google Patents
Construction method of aluminum alloy template suitable for molding of special-shaped structure Download PDFInfo
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- CN111779259A CN111779259A CN202010385270.4A CN202010385270A CN111779259A CN 111779259 A CN111779259 A CN 111779259A CN 202010385270 A CN202010385270 A CN 202010385270A CN 111779259 A CN111779259 A CN 111779259A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 101
- 238000010276 construction Methods 0.000 title claims abstract description 65
- 238000000465 moulding Methods 0.000 title claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 70
- 238000000034 method Methods 0.000 claims abstract description 29
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 238000004088 simulation Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 7
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 4
- 238000009415 formwork Methods 0.000 claims description 34
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 22
- 239000004567 concrete Substances 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims description 6
- 238000009435 building construction Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000007306 turnover Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002023 wood Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012994 industrial processing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
- E04G9/06—Forming boards or similar elements the form surface being of metal
-
- 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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
-
- 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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/04—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for structures of spherical, spheroid or similar shape, or for cupola structures of circular or polygonal horizontal or vertical section; Inflatable forms
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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
- E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
- E04G17/042—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements being tensioned by threaded elements
Landscapes
- 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 construction method of an aluminum alloy template suitable for molding a special-shaped structure, which comprises the steps of S1, examining an original design construction drawing; s2, optimizing the special-shaped knot; s3, deepening design of the special-shaped structure; s4, rechecking the numerical simulation precision; s5, blanking the template; s6, welding, assembling and molding the single templates; s7, assembling the modules in an integral trial manner; s8, checking and accepting the entering field; s9, temporary supporting and assembling on-site templates; s10, mounting a bottom die; s11, mounting a side die; s12, rechecking and reinforcing; s13, checking and accepting; s14, manufacturing reinforced concrete; s15, forming and maintaining; the aluminum alloy template comprises aluminum template panels and aluminum alloy rib plates which are arranged along the outline of the special-shaped structure, and the aluminum alloy rib plates are spliced and fixed by the aluminum template panels; the method can improve the splicing precision of the pasting template of the special-shaped structure outer contour, improve the turnover efficiency, and ensure high construction convenience, high splicing precision, high civilized construction degree, high molding quality and high safety.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a construction method of an aluminum alloy template suitable for forming a special-shaped structure.
Background
Along with the progress of times, the living standard of people is improved, the construction efficiency and the quality of urban residences become more important, the design concept is promoted to be continuously innovated, the building modeling is more and more fashionable and artistic, and some special-shaped structures are widely applied to the outer vertical surfaces of buildings and have the characteristics of long overhang, various modeling, unfixed circular curvature, hollow-out between the main body structures and the like, so that the building template used in the new construction process is directly related to various factors such as the safety of the building structure, the convenience of construction, the construction cost and the like.
In order to ensure the safety of high-rise buildings and super high-rise special-shaped structures in the construction process, the convenience of the operation process, the control of construction cost and the like, the aluminum alloy template technology is provided with higher requirements, and has great significance for accelerating the construction progress, improving the quality of the buildings and the like, but the aluminum alloy template with standard size, which is customized by stereotyped design and industrial processing in the current stage, is not suitable for the construction of the special-shaped structures and cannot construct special-shaped structures with gradually changed curvatures, the special-shaped structures adopt wood moulds to plasticity the shapes of special-shaped structural members in the current stage and finally form concrete, but the shapes of the wood moulds plasticity special-shaped structures have high operation requirements on workers and high construction difficulty, the overall precision of the special-shaped structural members is not easy to control, and mould explosion, slurry leakage and the like are easy to cause when the concrete is poured; the wood pattern is easy to deform unevenly in temperature change due to the physical characteristic of strong water absorption, the turnover use efficiency of the template, the plastic forming quality of the special-shaped structure and the field civilized construction are difficult to control, and the forming quality and the construction cost of the special-shaped structure member are influenced finally.
Disclosure of Invention
The invention aims to provide a construction method of an aluminum alloy template suitable for forming a special-shaped structure, which can solve the problems of difficulty in controlling precision, low template material turnover efficiency, low safety, low construction convenience and the like of the conventional special-shaped structure construction method.
The embodiment of the invention is realized by the following steps:
a construction method of an aluminum alloy template suitable for forming a special-shaped structure comprises the following steps:
s1 examination drawing of original design construction drawing
Rechecking the elevation, the size, the axis displacement, the size of the reinforcing bars and the relative position relation with the main body structure of the special-shaped structure on the original design construction drawing, and combining the original structure construction drawing and the building construction drawing by using AutoCAD to determine whether a reserved hole exists or not so as to unify the design depth of the structure construction drawing and the building construction drawing;
s2 optimizing special-shaped knot
On the basis of the determined original construction drawing, further extracting the overall size of the special-shaped structure, the curvature, the gradual change form and the radius of the outer contour of the special-shaped structure, and determining the curvature relation of the special-shaped structure according to the combination of various elements;
s3 deepened design of special-shaped structure
Auto CAD software was used to perform 1: 1 lofting and reducing, dividing the special-shaped structure by using the principle of a circle cutting method, wherein the length of the side of each section of the inscribed polygon is the arc length L during dividing the special-shaped structure1The length of each section of the special-shaped structure is the chord length L2The distance between the middle part of each section internally connected with the multi-deformation edge and the arc section of the special-shaped structure is delta h arc length and chord length difference value, whether the division is fine or not is judged according to the delta h arc length and chord length difference value, the finer the division is, the closer the arc line approaches to the chord, and therefore the method is adoptedThe method of direct bending replacement comprises the steps of dividing a special-shaped structure curved surface into a plurality of planes, splicing the planes into curved surfaces (cambered surface → plane → cambered surface), determining the relevant blanking size of an aluminum alloy template panel according to chord length data, and simultaneously carrying out die matching design of aluminum alloy rib plate reinforcement according to an aluminum alloy template;
s4 numerical simulation precision rechecking
Fitting the single divided curved surface element in a building model software including but not limited to Revit by combining the integral size and curvature change of the special-shaped structure, and determining whether the included angle between the panel and the ribbed plate between the aluminum alloy ribbed plate and the aluminum template panel meets the curvature change of the special-shaped structure;
s5, blanking of template
After numerical simulation precision rechecking, under the condition that the precision of the curved surface elements of all the single aluminum template panels meets the assembly requirement, directly determining the blanking length of the aluminum template panels according to the length of the single curved surface during blanking;
s6, welding, assembling and forming single template
Carrying out reinforcement design after blanking of a single aluminum template panel, determining bolt connecting holes, middle reinforced aluminum alloy rib plates and side aluminum alloy rib plates which are connected through pins, and welding the three parts and the aluminum template panel to form a single aluminum template panel into an organic whole;
s7, module integral assembling trial
After all the single aluminum formwork panels are assembled and welded, the whole aluminum formwork panels are assembled in a whole trial mode by combining the whole size of the special-shaped structure, whether fitting in S4 is feasible or not is demonstrated, whether the included angle between the rib plates and the panels and curvature change meet design requirements or not is determined, and if not, the method returns to S4 to modify.
In a preferred embodiment of the present invention, the above steps further include:
s8, acceptance inspection of approach
Inspecting the panel materials, structural parts, sizes and the like of the aluminum template with the special-shaped structure entering a construction site according to the requirements specified by relevant standards, and confirming whether the product is qualified or not;
s9, temporary support and on-site template implementation assembly
And after the S7 meets the design, the aluminum formwork panel and the aluminum alloy rib plate can be transported to a construction site for assembly.
In a preferred embodiment of the present invention, the above steps further include:
s10, bottom die installation
Mounting according to the design requirements of a die matching diagram, and strictly controlling the elevation of the aluminum template panel as a bottom die in the mounting process of the aluminum template panel;
s11, side die installation
After the bottom die is installed, the outer side die is installed in place, and after the aluminum alloy rib plate serving as the outer side die is installed in place, the fixing construction of pins and pin pieces is carried out;
s12, rechecking and reinforcing
The geometric dimension rechecking is carried out after the special-shaped structure aluminum formwork panel is installed, key parts are reinforced, and displacement is prevented when concrete is applied.
In a preferred embodiment of the present invention, the above steps further include:
s13, checking and accepting;
s14 construction of reinforced concrete
Completing the S6 on the aluminum formwork panel and the aluminum alloy rib plate with the special-shaped structure, performing on-site rechecking and reinforcing of the overall size of the aluminum formwork panel with the special-shaped structure, determining that the assembled precision and the sizes of various sections are consistent with the original design construction drawing, and applying concrete after the design requirements are met;
s15, molding and maintaining
When the concrete strength ensures that the surface and the edges of the special-shaped structure are not damaged, the bottom template and the side mold are disassembled, the supporting rods are required to be disassembled at least 21 days later, so that the bottom of the special-shaped structure has enough supporting counter force, the strength of the special-shaped structure is increased, and the final forming of the special-shaped structure meets the design requirements.
In a preferred embodiment of the present invention, the aluminum alloy form in S3 includes a plurality of aluminum form panels disposed along an outer contour of the special-shaped structure, adjacent aluminum form panels are spliced together and have a splice position, aluminum alloy ribs are connected and disposed at four edges of the aluminum form panels, the aluminum alloy ribs face the outer side of the special-shaped structure, the aluminum alloy ribs are provided with bolt connection holes for connecting two sides, and the aluminum alloy ribs facing opposite positions of the adjacent aluminum form panels are fixed by bolts penetrating through the bolt connection holes, so that the plurality of aluminum form panels are connected and distributed along the outer contour of the special-shaped structure.
In a preferred embodiment of the present invention, an angle between the panel and the rib is between the panel of the aluminum mold and the aluminum alloy rib, and the angle between the panel and the rib ranges from 80 ° to 100 °.
In a preferred embodiment of the present invention, an angle between the panel and the rib plate is a half of an angle formed by the profile of the special-shaped structure, and a seam formed between adjacent aluminum alloy rib plates is a seam surface to adapt to the special-shaped structure profile with different radians.
In a preferred embodiment of the present invention, the aluminum alloy rib plate is provided with at least two bolt connection holes, and the bolt connection holes are symmetrically arranged on four aluminum alloy rib plates surrounding the aluminum formwork panel.
In a preferred embodiment of the present invention, the aluminum form panels are attached to the outer contour surfaces of the two sides of the special-shaped structure.
In a preferred embodiment of the present invention, the adjacent aluminum alloy rib plates are connected by the bolt connecting hole and then fixed by using a pin or a pin piece.
In the preferred embodiment of the present invention, the above mentioned
The invention has the beneficial effects that:
according to the invention, a plurality of aluminum template panels are laid on the profile of the special-shaped structure to form a template structure suitable for forming the special-shaped structure, adjacent aluminum template panels are assembled and connected through the aluminum alloy rib plates, and the aluminum template panels and the aluminum alloy rib plates can form mutually matched gaps through the arrangement of the included angles between the panels and the rib plates so as to adapt to the profile of the special-shaped structure with different radians; the method can improve the splicing precision of the pasting template of the special-shaped structure outer contour and improve the turnover efficiency, and has the following advantages:
(1) the convenience is high; because the self weight of the aluminum alloy template is light, the aluminum alloy template is adopted in the special-shaped structure, so that the working efficiency of installation, removal and transmission of operators can be improved, the operators can assemble the aluminum alloy template easily and do not depend on machinery completely;
(2) the assembly precision is high; the special-shaped aluminum alloy template is manufactured by blanking under the assistance of an industrial computer after numerical simulation is carried out on an original design construction drawing by utilizing AutoCAD and Revit, so that the precision can be completely ensured in the assembling process of the special-shaped aluminum alloy template.
(3) The civilized construction degree is high; the turnover rate of the template is improved; the aluminum alloy template system has high field civilization construction degree, and each part of the template can be repeatedly used and recovered, so that the turnover rate of the template is improved, and the cost of waste treatment is reduced. Compared with other types of templates, the template saves steel and wood, and is low-carbon and environment-friendly.
(4) The molding quality is high; the flatness and the verticality of the aluminum alloy template can be well guaranteed, the template does not absorb water, the concrete forming quality is high, the clear water concrete effect can be achieved after the special-shaped structure is formed, and common quality problems such as honeycomb pitted surface and the like are avoided.
(5) The safety is high; in the use process of the supporting system of the aluminum alloy template, the overall rigidity and the stability of the supporting system are incomparable with those of a wood mold, and the overall collapse of the formwork support caused in the concrete pouring process is avoided.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope.
FIG. 1 is a flow chart of a construction method of an aluminum alloy template suitable for forming a special-shaped structure, disclosed by the invention;
FIG. 2 is a schematic view of a circular arc-chord relation 'circle cutting method' in the construction process of the aluminum alloy template suitable for forming the special-shaped structure;
FIG. 3 is a diagram of the splicing connection of the aluminum alloy template suitable for the molding of the special-shaped structure;
icon: 1-a special-shaped structure outer contour; 2-an aluminum template panel; 3-splicing position; 4-included angle between the panel and the rib plate; 5-bolt connection holes; 6-aluminum alloy rib plate; 7-arc length L1; 8-chord length L2; and the difference value of the arc length and the chord length is 9-delta h.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
First embodiment
Referring to fig. 1, the present embodiment provides a construction method of an aluminum alloy formwork suitable for forming a special-shaped structure, which includes the following steps:
s1 examination drawing of original design construction drawing
Rechecking the elevation, the size, the axis displacement, the size of the reinforcing bars and the relative position relation with the main body structure of the special-shaped structure on the original design construction drawing, combining the original structure construction drawing and the building construction drawing by utilizing AutoCAD to determine whether a reserved hole exists, wherein the reserved hole is a bolt connecting hole 5 for fixing a bolt to pass through, and the design depths of the structure construction drawing and the building construction drawing are unified;
s2 optimizing special-shaped knot
On the basis of the determined original construction drawing, further extracting the overall size of the special-shaped structure, the curvature, the gradual change form and the radius of the outer contour 1 of the special-shaped structure, and determining the curvature relation of the special-shaped structure according to the combination of various elements;
s3 deepened design of special-shaped structure
Referring to fig. 2, Auto CAD software is used to perform 1: 1 lofting and reducing, dividing the special-shaped structure by using the principle of a circle cutting method, wherein the length of each section of the inscribed polygon is the arc length L when the special-shaped structure is divided17, the length of each section of the special-shaped structure is the chord length L28, the distance between the arc section of the special-shaped structure of each section and the middle part of the inscribed multi-deformation is delta h arc length and chord length difference value 9, whether the division is fine or not is judged according to the delta h arc length and chord length difference value 9, the finer the division is, the closer the arc line approaches to the chord, therefore, by adopting the method of direct bending instead of curve, the curved surface of the special-shaped structure is divided into a plurality of planes, and then the planes are spliced into curved surfaces (arc surface → plane → arc surface), the relevant blanking size of the aluminum alloy template panel can be determined according to the chord length data, and meanwhile, the mold matching design of the reinforcement of the aluminum alloy rib plate 6 is carried out according;
s4 numerical simulation precision rechecking
Fitting the single divided curved surface element in a building model software including but not limited to Revit by combining the integral size and curvature change of the special-shaped structure, and determining whether the panel-rib plate included angle 4 between the aluminum alloy rib plate 6 and the aluminum template panel 2 meets the curvature change of the special-shaped structure;
s5, blanking of template
After numerical simulation precision rechecking, under the condition that the precision of the curved surface elements of all the single aluminum template panels 2 meets the assembly requirement, directly determining the blanking length of the aluminum template panels 2 according to the length of the single curved surface during blanking;
s6, welding, assembling and forming single template
The method comprises the following steps of performing reinforcement design after blanking of a single aluminum template panel 2, determining bolt connecting holes 5, middle reinforced aluminum alloy rib plates 6 and side aluminum alloy rib plates 6 which are connected through pins, and welding the three parts and the aluminum template panel 2 into the single aluminum template panel 2 to form an organic whole;
s7, module integral assembling trial
After all the single aluminum formwork panels 2 are assembled and welded, the whole aluminum formwork panels are assembled in a whole trial mode by combining the whole size of the special-shaped structure, whether fitting in S4 is feasible or not is demonstrated, whether the included angle 4 between the panels and the rib plates and curvature change meet design requirements or not is determined, and if not, the operation returns to S4 to be modified.
S8, acceptance inspection of approach
The materials, structural parts, sizes and the like of the aluminum template panel 2 of the special-shaped structure entering the construction site are checked according to the requirements specified by relevant standards, and whether the product is qualified or not is confirmed;
s9, temporary support and on-site template implementation assembly
After the above-mentioned S7 accords with the design, can carry aluminium template panel 2 and aluminum alloy floor 6 to the job site and implement the assembly.
S10, bottom die installation
Mounting according to the design requirements of a die matching diagram, and strictly controlling the elevation of the aluminum template panel 2 in the mounting process of the aluminum template panel 2 serving as a bottom die;
s11, side die installation
After the bottom die is installed, the outer side die is installed in place, and after the aluminum alloy rib plates 6 serving as the outer side die are installed in place, the fixing construction of pins and pin pieces is carried out;
s12, rechecking and reinforcing
The geometric dimension rechecking is carried out after the special-shaped structure aluminum formwork panel 2 is installed, key parts are reinforced, and displacement is prevented when concrete is applied.
S13, checking and accepting;
s14 construction of reinforced concrete
Completing the S6 on the aluminum template panel 2 with the special-shaped structure and the aluminum alloy rib plate 6, performing on-site checking and reinforcing on the overall size of the aluminum template panel 2 with the special-shaped structure, determining that the assembled precision and the sizes of all sections are consistent with the original design construction drawing, and applying concrete after the design requirements are met;
s15, molding and maintaining
When the concrete strength ensures that the surface and the edges of the special-shaped structure are not damaged (the concrete pouring of the embodiment reaches about 10MPa), the bottom template and the side die are disassembled, the supporting rods are required to be disassembled at least 21 days later, so that the bottom of the special-shaped structure has enough supporting counter force, the strength of the special-shaped structure is increased, and the final forming of the special-shaped structure meets the design requirements.
Referring to fig. 3, the aluminum alloy form mentioned in the above step S3 includes a plurality of identical aluminum form panels 2 disposed along the outer contour 1 of the special-shaped structure, the plurality of aluminum form panels 2 are laid on the surface of the outer contour 1 of the special-shaped structure, the aluminum form panels 2 are in the shape of an arc square plate, the curvature of the aluminum form panels 2 matches with the outer contour 1 of the special-shaped structure, aluminum alloy ribs 6 are connected to four edges of the aluminum form panels 2, the four aluminum alloy ribs 6 are connected to each other to form a quadrilateral frame, when the aluminum form panels 2 are attached to the outer contour surface of the special-shaped structure, the aluminum alloy ribs 6 respectively connect the single aluminum form panels 2 to the middle portion in a surrounding manner, and the joints of the aluminum alloy ribs 6 and the aluminum form panels 2 are located at the edges of the aluminum form panels 2, the aluminum alloy ribs 6 and the aluminum form panels 2 of this embodiment are integrally formed, the plurality, adjacent aluminum mould board panel 2 passes the bolted connection hole 5 connection of aluminum alloy floor 6 through the bolt to use pin, round pin piece to fix, the concatenation of aluminum alloy template is passed through to this embodiment, has improved the precision of concatenation, and turnover efficiency is higher, has improved the security and has increased the construction convenience.
The aluminum formwork panels 2 are connected to the outer contour surface of the special-shaped structure in a sticking way, the aluminum formwork panels 2 are square, aluminum alloy rib plates 6 are connected to the four edges of the aluminum formwork panels 2, the four aluminum alloy rib plates 6 are respectively rectangular, the arrangement direction of the aluminum alloy rib plates 6 faces to the outer side of the special-shaped structure, only one surface of the aluminum template panel 2 is pasted on the surface of the special-shaped structure, the special-shaped structure is provided with two side surfaces opposite to each other, a plurality of aluminum template panels 2 are respectively pasted on the outer contour surfaces at the two sides of the special-shaped structure, after being pasted, adjacent aluminum mould board panel 2 passes through 6 concatenation connections of aluminum alloy floor, and aluminum alloy floor 6 is provided with the bolted connection hole 5 of intercommunication both sides, passes bolted connection hole 5 and fixes through using the bolt between the aluminum alloy floor 6 that adjacent aluminum mould board panel 2's the relative position, and a plurality of aluminum mould board panels 2 connect like this and along 1 face distribution of dysmorphism structure outline.
The aluminum alloy rib plates 6 are provided with two bolt connecting holes 5 which are spaced from each other, eight bolt connecting holes 5 are arranged in total and surround four aluminum alloy rib plates 6 arranged on the aluminum template panels 2, the eight bolt connecting holes 5 are symmetrically arranged, the adjacent aluminum template panels 2 are spliced through the bolt connecting holes 5, a splicing position 3 is arranged between the adjacent aluminum alloy rib plates 6, the splicing position 3 is a connecting position between the adjacent aluminum alloy rib plates 6, the splicing position 3 is a non-angle gap surface due to the connection of the adjacent aluminum alloy rib plates 6, a panel and rib plate included angle 4 is formed between the aluminum template panels 2 and the aluminum alloy rib plates 6, the angle range of the panel and rib plate included angle 4 is 80-100 degrees, the angle of the panel and rib plate included angle 4 of the embodiment is half of the angle of the surface shape of the profile 1 of the special-shaped structure, namely 88 degrees, the splicing position 3 formed between the, so as to adapt to the profile 1 with the special-shaped structure with different radians.
In summary, in the embodiment of the invention, the plurality of aluminum formwork panels are laid on the profile of the special-shaped structure to form the formwork structure suitable for forming the special-shaped structure, the adjacent aluminum formwork panels are assembled and connected through the aluminum alloy rib plates, and the aluminum formwork panels and the aluminum alloy rib plates can form mutually matched gaps through the arrangement of the included angles between the panels and the rib plates so as to adapt to the profiles of the special-shaped structures with different radians; the method can improve the splicing precision of the pasting template of the special-shaped structure outer contour, improve the turnover efficiency, and ensure high construction convenience, high splicing precision, high civilized construction degree, high molding quality and high safety.
This description describes examples of embodiments of the invention, and is not intended to illustrate and describe all possible forms of the invention. It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (10)
1. The construction method of the aluminum alloy template suitable for forming the special-shaped structure is characterized by comprising the following steps of:
s1 examination drawing of original design construction drawing
Rechecking the elevation, the size, the axis displacement, the size of the reinforcing bars and the relative position relation with the main body structure of the special-shaped structure on the original design construction drawing, and combining the original structure construction drawing and the building construction drawing by using AutoCAD to determine whether a reserved hole exists or not so as to unify the design depth of the structure construction drawing and the building construction drawing;
s2 optimizing special-shaped knot
On the basis of the determined original construction drawing, further extracting the overall size of the special-shaped structure, the curvature, the gradual change form and the radius of the outer contour of the special-shaped structure, and determining the curvature relation of the special-shaped structure according to the combination of various elements;
s3 deepened design of special-shaped structure
Auto CAD software was used to perform 1: 1 lofting and reducing, dividing the special-shaped structure by using the principle of a circle cutting method, wherein the length of the side of each section of the inscribed polygon is the arc length L during dividing the special-shaped structure1The length of each section of the special-shaped structure is the chord length L2The distance between the middle part of each section of the inscribed multi-deformation side and the arc section of the special-shaped structure is the delta h arc length and chord length difference value, whether the division is fine or not is judged according to the delta h arc length and chord length difference value, the finer the division is, the closer the arc line approaches to the chord, therefore, by adopting the method of direct bending, the curved surface of the special-shaped structure is divided into a plurality of planes, and then the planes are spliced into curved surfaces (cambered surface → plane → cambered surface), the relevant blanking size of the aluminum alloy template panel can be determined according to the chord length data, and meanwhile, the die matching design of aluminum alloy rib plate reinforcement is carried out according to the aluminum alloy template;
s4 numerical simulation precision rechecking
Fitting the single divided curved surface element in a building model software including but not limited to Revit by combining the integral size and curvature change of the special-shaped structure, and determining whether the length between the aluminum alloy rib plate and the aluminum template panel and the included angle of the rib plate meet the curvature change of the special-shaped structure;
s5, blanking of template
After numerical simulation precision rechecking, under the condition that the precision of the curved surface elements of all the single aluminum template panels meets the assembly requirement, directly determining the blanking length of the aluminum template panels according to the length of the single curved surface during blanking;
s6, welding, assembling and forming single template
Carrying out reinforcement design after blanking of a single aluminum template panel, determining bolt connecting holes, middle reinforced aluminum alloy rib plates and side aluminum alloy rib plates which are connected through pins, and welding the three parts and the aluminum template panel to form a single aluminum template panel into an organic whole;
s7, module integral assembling trial
After all the single aluminum formwork panels are assembled and welded, the whole aluminum formwork panels are assembled in a whole trial mode by combining the whole size of the special-shaped structure, whether fitting in S4 is feasible or not is demonstrated, whether the included angle between the rib plates and the panels and curvature change meet design requirements or not is determined, and if not, the method returns to S4 to modify.
2. The construction method of the aluminum alloy formwork applicable to the forming of the special-shaped structure as claimed in claim 1, wherein the steps further comprise:
s8, acceptance inspection of approach
Inspecting the panel materials, structural parts, sizes and the like of the aluminum template with the special-shaped structure entering a construction site according to the requirements specified by relevant standards, and confirming whether the product is qualified or not;
s9, temporary support and on-site template implementation assembly
And after the S7 meets the design, the aluminum formwork panel and the aluminum alloy rib plate can be transported to a construction site for assembly.
3. The construction method of the aluminum alloy formwork applicable to the forming of the special-shaped structure as claimed in claim 2, wherein the steps further comprise:
s10, bottom die installation
Mounting according to the design requirements of a die matching diagram, and strictly controlling the elevation of the aluminum template panel as a bottom die in the mounting process of the aluminum template panel;
s11, side die installation
After the bottom die is installed, the outer side die is installed in place, and after the aluminum alloy rib plate serving as the outer side die is installed in place, the fixing construction of pins and pin pieces is carried out;
s12, rechecking and reinforcing
The geometric dimension rechecking is carried out after the special-shaped structure aluminum formwork panel is installed, key parts are reinforced, and displacement is prevented when concrete is applied.
4. The construction method of the aluminum alloy formwork applicable to the forming of the special-shaped structure as claimed in claim 3, wherein the steps further comprise:
s13, checking and accepting;
s14 construction of reinforced concrete
Completing the S6 on the aluminum formwork panel and the aluminum alloy rib plate with the special-shaped structure, performing on-site rechecking and reinforcing of the overall size of the aluminum formwork panel with the special-shaped structure, determining that the assembled precision and the sizes of various sections are consistent with the original design construction drawing, and applying concrete after the design requirements are met;
s15, molding and maintaining
When the concrete strength ensures that the surface and the edges of the special-shaped structure are not damaged, the bottom template and the side mold are disassembled, the supporting rods are required to be disassembled at least 21 days later, so that the bottom of the special-shaped structure has enough supporting counter force, the strength of the special-shaped structure is increased, and the final forming of the special-shaped structure meets the design requirements.
5. The method as claimed in claim 1, wherein the aluminum alloy form in S3 includes a plurality of aluminum form panels disposed along an outer contour of the special-shaped structure, adjacent aluminum form panels are spliced together and have a splice position, aluminum alloy ribs are connected to four edges of the aluminum form panels, the aluminum alloy ribs face the outer side of the special-shaped structure, the aluminum alloy ribs are provided with bolt connection holes communicating two sides, and the aluminum alloy ribs facing opposite positions of the adjacent aluminum form panels are fixed by bolts penetrating through the bolt connection holes, so that the aluminum form panels are connected and distributed along the outer contour of the special-shaped structure.
6. The method for constructing the aluminum alloy formwork for forming the special-shaped structure as claimed in claim 5, wherein an included angle between the panel of the aluminum formwork and the rib plate of the aluminum alloy formwork is 80-100 degrees.
7. The construction method of the aluminum alloy formwork applicable to forming of the special-shaped structure as claimed in claim 6, wherein the included angle between the panel and the rib plate is half of the included angle of the outer contour surface of the special-shaped structure, and the abutted seam position formed between the adjacent aluminum alloy rib plates is a seam surface so as to adapt to the outer contour of the special-shaped structure with different radians.
8. The method as claimed in claim 6, wherein the aluminum alloy rib plates are provided with at least two bolt connecting holes, and the bolt connecting holes are symmetrically arranged on four aluminum alloy rib plates surrounding the aluminum formwork panel.
9. The method as claimed in claim 6, wherein a plurality of the aluminum form panels are attached to the outer contour surface of the profiled structure.
10. The method for constructing an aluminum alloy formwork for forming a special-shaped structure as claimed in claim 7, wherein the adjacent aluminum alloy rib plates are connected through the bolt connecting holes and then fixed by using pins and pin pieces.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010385270.4A CN111779259A (en) | 2020-05-09 | 2020-05-09 | Construction method of aluminum alloy template suitable for molding of special-shaped structure |
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| CN202010385270.4A CN111779259A (en) | 2020-05-09 | 2020-05-09 | Construction method of aluminum alloy template suitable for molding of special-shaped structure |
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| CN111779259A true CN111779259A (en) | 2020-10-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113152224A (en) * | 2021-04-27 | 2021-07-23 | 上海奥建道路设施技术有限公司 | Method for making curved surface of steel mould for paving of integral crossing |
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| CN212613707U (en) * | 2020-05-09 | 2021-02-26 | 中建地下空间有限公司 | Aluminum alloy template suitable for special-shaped structure forming |
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| EP0321006A2 (en) * | 1987-12-18 | 1989-06-21 | Symons Corporation | Concrete forming system for curved walls |
| CN203905966U (en) * | 2014-06-13 | 2014-10-29 | 宋仲华 | Lining mold used for at-one-time concrete pouring of tunnel inverted arch structure |
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