Formwork matching method for hyperbolic concrete outer wall with straight mode replacing curved mode

Abstract

The invention discloses a straight-to-curved mold matching method for a hyperbolic concrete outer wall. The method comprises the steps that a hyperbolic model of the concrete outer wall is fitted through a broken line model; fine adjustment is conducted on the break point position of the broken line model, so that the broken line model and the design position of the internal existing structure are staggered; selecting a plurality of first broken lines in the horizontal direction and a plurality of second broken lines in the vertical direction of the broken line model, and fitting a new broken line model by taking intersection points of the plurality of first broken lines and the plurality of second broken lines as new break points; expanding the surface of the new broken line model, and calculating the size information of each grid unit; and according to the size information of each grid unit and the design scale, mold matching is carried out on each grid unit, and the construction efficiency is improved through the mold matching method.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a formwork matching method for replacing curves with straight lines for hyperbolic concrete exterior walls. Background Art

[0002] With the development of cities, some concert halls, gymnasiums and museums have higher and higher requirements for the aesthetics of buildings, and often use hyperbolic concrete as exterior wall decoration. Traditional hyperbolic concrete exterior walls require special large-scale curved formwork designed in the factory for construction. The processing, transportation and construction of large-scale curved formwork are all problems, and this type of formwork is basically disposable and cannot be turned around, resulting in low construction efficiency and low economic benefits. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a formwork method for hyperbolic concrete exterior walls that uses straight instead of curved, converting a large curved formwork into multiple small straight formworks, which are easy to transport and install and can be used in a turnover manner, thereby improving construction efficiency and economic benefits.

[0004] To achieve the above object, the technical solution adopted by the present invention is a formwork matching method for a hyperbolic concrete exterior wall using straight lines instead of curves, comprising the steps of:

[0005] Step 1: Use the broken line model to fit the hyperbolic model of the concrete exterior wall;

[0006] Step 2: fine-tuning the inflection point position of the fold line model so that the fold line model is misaligned with the design position of the existing internal structure;

[0007] Step 3: Select multiple first fold lines in the horizontal direction and multiple second fold lines in the vertical direction of the fold line model, and fit a new fold line model with the intersection points of the multiple first fold lines and the multiple second fold lines as new fold points;

[0008] Step 4: Use Rhino software to unfold the surface of the new polyline model and calculate the size information of each grid unit;

[0009] Step 5: Match a mold for each of the grid units according to the size information of each of the grid units and the design scale.

[0010] A further improvement of the mold matching method for replacing curves with straight lines in a hyperbolic concrete exterior wall of the present invention is that, when executing the above step 1, the multiple inflection points of the broken line model are distributed according to the curvature of the hyperbolic model, so that the multiple inflection points are densely distributed where the curvature is larger, and the multiple inflection points are dispersedly distributed where the curvature is smaller.

[0011] The further improvement of the mold matching method for replacing curves with straight lines for hyperbolic concrete exterior walls of the present invention is that after executing step 3 and before executing step 4, multiple cross-sectional views of the concrete exterior wall are obtained by using 3dmax with a slicing tool at different elevations, and the multiple cross-sectional views are checked to see whether they intersect with the design positions of the existing internal structures:

[0012] Step 4.1: If yes, return to step 3 and reselect multiple first fold lines and multiple second fold lines;

[0013] Step 4.2: If no, go to step 4.

[0014] A further improvement of the mold matching method for replacing curves with straight lines for hyperbolic concrete exterior walls of the present invention is that when executing the above step 4, each of the grid units is numbered for the first time, and when executing the above step 5, the mold is matched according to the first numbering and the template is numbered for the second time.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] By using the straight-versus-curved formwork method, a large curved formwork can be converted into multiple small straight formworks, which are easy to transport and install and can be used in rotation, thereby improving construction efficiency and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is the broken line model of the concrete exterior wall of the present invention.

[0019] Figure 2 It is a schematic diagram of the avoidance between the broken line model of the concrete exterior wall and the existing internal structure of the present invention.

[0020] Figure 3 It is a front view of the broken line model of the concrete exterior wall of the present invention.

[0021] Figure 4 It is a horizontal cross-sectional view of the broken line model of the concrete exterior wall of the present invention.

[0022] Figure 5 It is a schematic diagram of the grid unit of the surface of the polyline model of the concrete exterior wall of the present invention.

[0023] Figure 6 It is a schematic diagram of the grid unit of the present invention. DETAILED DESCRIPTION

[0024] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0025] The following is a further detailed description of the formwork method for replacing curves with straight lines for a hyperbolic concrete exterior wall according to the present invention in conjunction with the accompanying drawings and specific embodiments.

[0026] See also Figure 1 to Figure 6 As shown, the formwork method for replacing the curve with a straight line for a hyperbolic concrete exterior wall comprises the following steps:

[0027] Step 1: Use the broken line model to fit the hyperbolic model of the concrete exterior wall;

[0028] Step 2: fine-tune the inflection point position of the fold line model so that the fold line model is misaligned with the design position of the existing internal structure;

[0029] Step 3: Select multiple first fold lines in the horizontal direction and multiple second fold lines in the vertical direction of the fold line model, and fit a new fold line model with the intersection points of the multiple first fold lines and the multiple second fold lines as new fold points;

[0030] Specifically, Figure 3 As shown, F1 and F7 are respectively the bottom elevation and the top elevation of the broken line model of the concrete exterior wall, and F2 to F6 are the elevations of the selected multiple first broken lines.

[0031] Step 4: Use Rhino software to unfold the surface of the new polyline model and calculate the size information of each grid unit;

[0032] Specifically, Figure 5 and Figure 6 As shown, each grid in the figure is the grid unit, and the lengths of the four sides and the angles of the four corners of each grid unit are obtained.

[0033] Step 5: Assemble the molds for each grid unit according to the size information and design scale of each grid unit.

[0034] like Figure 1 Shown is the polyline model of all concrete exterior walls; Figure 2As shown in the figure, the pink one is the broken line model of the concrete exterior wall. The broken line model of the concrete exterior wall in the internal space is provided with an internal staircase and a structural column indicated by green. When performing the above step 2, when fine-tuning the position of the inflection point, it is necessary to ensure that the broken line model of the concrete exterior wall avoids the internal staircase and the structural column. Since the internal space will inevitably be reduced after the curved surface is changed to a folded surface, when fine-tuning the position of the inflection point, it is also necessary to ensure that the impact on the internal space is as small as possible, that is, to ensure that the internal space is as large as possible.

[0035] In order to reduce the difference in appearance between the folded surface and the curved surface, after the concrete exterior wall is constructed according to the new fold line model, a decorative curved surface needs to be constructed on the outer surface of the concrete exterior wall.

[0036] Preferably, when executing the above step 1, the multiple inflection points of the broken line model are distributed according to the curvature of the hyperbolic model, the multiple inflection points are densely distributed where the curvature is larger, and the multiple inflection points are dispersedly distributed where the curvature is smaller.

[0037] By distributing the inflection points according to the curvature, it is easy to fit a broken line model that is most similar to the hyperbolic model.

[0038] Preferably, after executing step 3 and before executing step 4, 3dmax is used to obtain multiple cross-sectional views of the concrete exterior wall using a slice tool at different elevations, and the multiple cross-sectional views are checked to see whether they intersect with the design positions of the existing internal structures:

[0039] Step 4.1: If yes, return to step 3 and reselect multiple first fold lines and multiple second fold lines;

[0040] Step 4.2: If no, go to step 4.

[0041] Since the internal space of the new broken line model is further reduced compared with the old broken line model, it is necessary to perform a collision review on the new broken line model, such as Figure 4 As shown, by comparing the coordinates of each point on the cross-section with the coordinates of the design position of the existing internal structure to determine whether overlap occurs, the broken line model of the concrete exterior wall can be adjusted.

[0042] Preferably, when executing the above step 4, each grid unit is numbered for the first time, and when executing the above step 5, the template is matched according to the first numbering and the template is numbered for the second time.

[0043] By carrying out the second numbering, when the templates are subsequently installed, each template can be installed to the corresponding position according to the second numbering, thereby improving the construction efficiency.

[0044] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0045] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A method for forming a double-curved concrete exterior wall by replacing the curve with a straight line, characterized in that: Includes steps: Step 1: Use the broken line model to fit the hyperbolic model of the concrete exterior wall; Step 2: fine-tuning the inflection point position of the fold line model so that the fold line model is misaligned with the design position of the existing internal structure; Step 3: Select multiple first fold lines in the horizontal direction and multiple second fold lines in the vertical direction of the fold line model, and fit a new fold line model with the intersection points of the multiple first fold lines and the multiple second fold lines as new fold points; Step 4: Use Rhino software to unfold the surface of the new polyline model and calculate the size information of each grid unit; Step 5: Match a mold for each of the grid units according to the size information of each of the grid units and the design scale.

2. The mold matching method for replacing curves with straight lines for hyperbolic concrete exterior walls as claimed in claim 1, characterized in that: When executing the above step 1, the multiple inflection points of the broken line model are distributed according to the curvature of the hyperbolic model, the multiple inflection points are densely distributed at a larger curvature, and the multiple inflection points are dispersedly distributed at a smaller curvature.

3. The mold matching method for replacing curves with straight lines for hyperbolic concrete exterior walls as claimed in claim 1, characterized in that: After executing step 3 and before executing step 4, use 3dmax to obtain multiple cross-sectional views of the concrete exterior wall at different elevations using a slice tool, and check whether the multiple cross-sectional views intersect with the design position of the existing internal structure: Step 4.1: If yes, return to step 3 and reselect multiple first fold lines and multiple second fold lines; Step 4.2: If no, go to step 4.

4. The mold matching method for replacing curves with straight lines for hyperbolic concrete exterior walls as claimed in claim 1, characterized in that: When executing the above step 4, each of the grid units is numbered for the first time, and when executing the above step 5, the template is matched according to the first numbering and the template is numbered for the second time.

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