CN112528377B - Modeling method for modeling axis of outer package supporting steel structure - Google Patents
Modeling method for modeling axis of outer package supporting steel structure Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 99
- 239000010959 steel Substances 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000007373 indentation Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
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Abstract
The invention discloses a modeling method of an external packing support steel structure modeling axis, which comprises the steps of establishing a closed section line of the external packing support steel structure modeling along the longitudinal direction; taking an axial center point of a closed section line; the axis points of the longitudinal adjacent closed section lines are connected to establish a longitudinal main axis; establishing a ray by taking the axial center point of the closed section line as a base point and equally dividing a circle, and intersecting the ray with the closed section line; retracting inwards on the ray along the intersection point of the ray and the closed cut line to enable the ray to form a transverse line, and enabling the end point of the transverse line close to the closed cut line to be a retracting point; when the areas of the longitudinally adjacent closed section lines are the same or different, connecting all the retracting points in the same closed section line to establish a weft side line; and connecting the retraction points of the longitudinally adjacent closed section lines in one-to-one correspondence up and down to establish a longitudinal minor axis. The invention can position the axis of the outer package support steel structure modeling and ensure the stability of the outer package support steel structure modeling.
Description
Technical Field
The invention relates to the modeling field of an outer package support steel structure model, in particular to a modeling method of an outer package support steel structure model axis.
Background
In landscape design for cultural travel, for example: the theme park, the outer package supporting steel structure modeling character modeling, the animal modeling and the like become indispensable landscape projects. The model of the steel structure modeling is large in scale and very complex in modeling. Many closed surface packages exist in the outer package supporting steel structure modeling, such as various towers, historical figures and the like. Wherein the closed section refers to a closed section line. When the outer packing support steel structure model is actually constructed, the axis relates to the overall stability of the outer packing support steel structure model, so the positioning of the axis of the outer packing support steel structure model is particularly important.
Therefore, how to position the axis of the outer package support steel structure model is a technical problem to be solved by the person skilled in the art.
Disclosure of Invention
The invention aims to solve the technical problem of providing a modeling method for the modeling axis of the outer package support steel structure so as to position the axis of the outer package support steel structure modeling and ensure the stability of the outer package support steel structure modeling.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a modeling method of an overwrap supporting steel structure modeling axis, comprising:
a closed section line of the outer package supporting steel structure model is established along the longitudinal direction;
taking an axial center point of a closed section line;
Connecting the axial center points of the longitudinal adjacent closed section lines to establish the longitudinal main axis of the outer package support steel structure model;
establishing a ray by taking the axial center point of the closed section line as a base point and equally dividing a circle, and intersecting the ray with the closed section line;
Retracting inwards on the ray along the intersection point of the ray and the closed cut line to enable the ray to form a transverse line, and enabling the end point of the transverse line close to the closed cut line to be a retracting point;
When the areas of the longitudinal adjacent closed section lines are the same or different, connecting all the retracting points in the same closed section line to establish a weft-direction side line of the outer package supporting steel structure modeling;
and correspondingly connecting the retraction points of the longitudinally adjacent closed section lines up and down one by one to establish the longitudinal minor axis of the outer package support steel structure model.
Further, according to the modeling method for the modeling axis of the outer package supporting steel structure, when the areas of the longitudinally adjacent closed cut lines are different, the retracting point of one of the closed cut lines is retracted along the transverse line of the retracting point to form a secondary retracting point, and the transverse line between the retracting point and the secondary retracting point is a burr;
Connecting all secondary indentation points of the closed section line with the secondary indentation points to establish a weft side line thereof; connecting all the retracting points of the other closed section line to establish a weft side line thereof;
the method comprises the steps of connecting the retraction points of the closed section lines with only the retraction points in the longitudinally adjacent closed section lines with the secondary retraction points of the closed section lines with the secondary retraction points in one-to-one correspondence up and down to establish the longitudinal secondary axis of the outer package support steel structure model.
Further, according to the modeling method for the modeling axis of the outer package supporting steel structure, when the areas of the longitudinal adjacent closed section lines are different, the retracting points of the longitudinal adjacent closed section lines are retracted along the transverse lines of the longitudinal adjacent closed section lines to form secondary retracting points, and the transverse lines between the retracting points and the secondary retracting points are burrs;
Connecting all secondary retracting points in the same closed cutting line to establish a weft-direction side line of the corresponding outer package supporting steel structure model;
and connecting the secondary indentation points of the longitudinally adjacent closed section lines in one-to-one correspondence up and down to establish the longitudinal secondary axis of the outer package support steel structure model.
Furthermore, according to the modeling method for the modeling axis of the outer package supporting steel structure, the retraction distance of the retraction point and the secondary retraction point of each transverse line is the same or different.
Further, according to the modeling method for the outer package support steel structure modeling axis, the retraction distance of the retraction point is related to the thickness of the outer package surface skin wrapped on the outer package support steel structure modeling.
Furthermore, according to the modeling method for the modeling axis of the outer package supporting steel structure, the direction of the initial azimuth angle of the rays established on the closed section line is the same.
Furthermore, the modeling method of the modeling axis of the outer package supporting steel structure provided by the invention takes the ray in the orthogonal direction with the longitudinal main axis as the initial azimuth angle.
Further, according to the modeling method for the external packing support steel structure modeling axis, the number of the equally divided circle building rays is determined according to the area size of the closed cutting line of the external packing support steel structure modeling.
Further, according to the modeling method for the modeling axis of the outer package supporting steel structure, provided by the invention, the distance between the intersecting point of the radial and the closed section line is more than 0.5-2 m.
Compared with the prior art, the invention has the following beneficial effects:
According to the modeling method for the modeling axis of the outer package support steel structure, the axis of the outer package support steel structure modeling can be positioned by establishing the longitudinal main axis and the longitudinal secondary axis, and the stability of the outer package support steel structure modeling is ensured.
According to the modeling method for the modeling axis of the outer package supporting steel structure, the stability of the transverse structure of the outer package supporting steel structure can be improved by establishing the latitudinal edge, and then the stability of the longitudinal structure is improved.
According to the modeling method for the outer package support steel structure modeling axis, the thickness of the outer package surface skin is avoided through the retraction points, so that the outer contour dimension of the outer package support steel structure modeling axis is matched with the specification dimension of the outer package surface skin, and the defect that the outer package surface skin is overlapped in a large area or lacks the exposed outer package support steel structure modeling axis when the outer package surface skin is coated with the outer package support steel structure modeling axis is avoided. Has the advantage of high precision.
When the modeling method of the modeling axis of the outer package support steel structure is used for modeling, the longitudinal main axis and the transverse line can be selected and divided according to structural stress, and the longitudinal secondary axis and the latitudinal side line are required to be reserved so as to ensure the stability of the structure.
Drawings
FIG. 1 is a schematic illustration of a model in which two adjacent closed cut lines are established in the longitudinal direction;
FIG. 2 is a schematic illustration of a model of the axial point of the adjacent closed section line in FIG. 1;
FIG. 3 is a schematic view of the model of the principal axis of longitudinal axis established in FIG. 2;
FIG. 4 is a schematic diagram of a model of the rays set up in FIG. 3;
FIG. 5 is a schematic illustration of the model of FIG. 4 with the intersection of ray blocking cut lines retracted inward;
FIG. 6 is a schematic diagram of a model of another embodiment of creating weft side lines in FIG. 5;
FIG. 7 is a schematic illustration of a model of another embodiment of the longitudinal minor axis established in FIG. 6;
FIG. 8 is a schematic diagram of a model of yet another embodiment of creating weft side lines in FIG. 5;
FIG. 9 is a schematic illustration of a model of yet another embodiment of the longitudinal minor axis established in FIG. 8;
FIG. 10 is a schematic diagram of a model of yet another embodiment of creating weft side lines in FIG. 5;
FIG. 11 is a schematic illustration of a model of yet another embodiment of the longitudinal minor axis established in FIG. 10;
FIG. 12 is a schematic diagram of another embodiment of creating weft side lines in FIG. 5;
FIG. 13 is a schematic illustration of a model of another embodiment of the longitudinal minor axis established in FIG. 12;
FIGS. 14 through 16 are schematic illustrations of a model of an axis-constructed character set constructed by the modeling method of the axis of the overpack-supporting steel structure of the present invention;
FIGS. 17-19 are flowcharts of a method of modeling the modeling axis of an overpack supporting steel structure of the present invention;
the figure shows:
100. closed section line, 110, longitudinal major axis, 120, longitudinal minor axis, 130, ray, 131, transverse line, 140, latitudinal edge, 150, burr, 200, figure, O, axis point, X, intersection point, S, setback point, C, secondary setback point.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
Unless defined otherwise, technical or scientific terms used in the embodiments of the present invention are commonly understood by one of ordinary skill in the art. The terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", and the like used in the present invention are used only to indicate relative positional relationships, wherein the point closer to the axis is the inner and the point farther from the axis is the outer.
Referring to fig. 17, an embodiment of the present invention provides a modeling method for an external packing support steel structure modeling axis, which may include the following steps:
In step 301, please refer to fig. 1, a closed cut line 100 of the outer package supporting steel structure model is established along the longitudinal direction.
In step 302, please refer to fig. 2, the axis point O of the closed section line 100 is taken.
In step 303, please refer to fig. 3, the axis point O connecting the longitudinally adjacent closed section lines 100 establishes the longitudinal main axis 110 of the outer package support steel structure model.
In step 304, please refer to fig. 4, which illustrates that the bisecting circle with the axis point O of the closed section line 100 as the base point establishes that the ray 130 intersects the closed section line 100 at the point X.
In step 305, please refer to fig. 5, the ray 130 is retracted inwardly along the intersection point X of the ray 130 and the closed cut line 100 on the ray 130 to form a transverse line 131 on the ray 130 and the end point of the transverse line 131 near the closed cut line 100 is the retraction point S. The setback point S is suitable for an outer package skin made of glass fiber reinforced plastic (also called glass fiber reinforced plastic, abbreviated as FRP), glass fiber reinforced cement mixture (abbreviated as GRC), and can be well adhered and wrapped.
In step 306, referring to fig. 6 and 8, when the areas of the longitudinally adjacent closed section lines 100 are the same or different, all the setpoints S in the same closed section line 100 are connected to create the weft side line 140 of the outer package support steel structure. Wherein the contour and area of adjacent closed section lines 100 in fig. 8 are all the same. The adjacent closed section lines 100 of fig. 6 are all different in contour and area.
In step 307, please refer to fig. 7 and 9, the setback points S of the longitudinally adjacent closed section lines 100 are connected in one-to-one correspondence up and down to establish the longitudinal minor axis 120 of the overpack supporting steel structure form.
According to the modeling method for the modeling axis of the outer package support steel structure, the axis of the outer package support steel structure modeling can be positioned by establishing the longitudinal main axis 110 and the longitudinal secondary axis 120, and the stability of the outer package support steel structure modeling is guaranteed.
According to the modeling method for the modeling axis of the outer package supporting steel structure, provided by the embodiment of the invention, the stability of the transverse structure of the outer package supporting steel structure can be improved by establishing the latitudinal edge 140, so that the stability of the longitudinal structure is improved.
According to the modeling method for the outer package support steel structure modeling axis, the thickness of the outer package surface skin is avoided through the retracting point S, so that the outer contour size of the outer package support steel structure modeling axis is matched with the specification size of the outer package surface skin, and the defect that the outer package surface skin is overlapped in a large area or lacks the exposed outer package support steel structure modeling axis when the outer package surface skin is coated with the outer package support steel structure modeling axis is avoided. Has the advantage of high precision.
The modeling method for the external packing support steel structure modeling axis provided by the embodiment of the invention can design the external packing support steel structure modeling with stable structure according to modeling graphics, such as a figure modeling, an animal modeling, a tower modeling and other building modeling.
Referring to fig. 18, the modeling method for the modeling axis of the outer package supporting steel structure provided by the embodiment of the invention may further include:
In step 308, referring to fig. 10, when the areas of the longitudinally adjacent closed cut lines 100 are different, the retracting point S of one of the closed cut lines 100 (e.g., the closed cut line 100 with smaller area) is retracted along the transverse line 131 thereof to form a secondary retracting point C, and the transverse line 131 between the retracting point S and the secondary retracting point C is the burr 150. Wherein the burr 150 is capable of better shaping the skin of the outer package. The burr 150 is suitable for an outer packing skin made of cement direct plastic (abbreviated as TCP by English name), and has good inclusion of finding out the outer packing.
Step 309, please refer to fig. 10, wherein all secondary points C of the closed section line 100 (e.g., the closed section line 100 with smaller area) having the secondary points C are connected to establish the weft side line 140; all the setpoints S of another closed section line 100 (e.g., a larger area closed section line 100) are connected to establish a weft edge 140 (e.g., a larger area closed section line 100).
In step 310, referring to fig. 11, the longitudinal secondary axis 120 of the outer package support steel structure model is established by connecting the setpoints S of the closed section lines 100 (e.g., the closed section lines 100 with larger areas) having only setpoints S in the longitudinally adjacent closed section lines 100 with the secondary setpoints C of the closed section lines 100 (e.g., the closed section lines 100 with smaller areas) in one-to-one correspondence.
Steps 308 to 310 may replace steps 306 to 307 of the above embodiments. I.e. steps 308 to 310 are performed directly after steps 301 to 305. Steps 301 to 310 may be performed simultaneously when the conditions are satisfied.
Referring to fig. 19, the modeling method for the modeling axis of the outer package supporting steel structure according to the embodiment of the present invention may further include:
In step 311, referring to fig. 12, when the areas of the longitudinally adjacent closed cut lines 100 are different, the retracting points S of the longitudinally adjacent closed cut lines 100 (i.e. the closed cut line 100 with smaller area and the closed cut line 100 with larger area) are retracted again along the transverse lines 131 thereof to form secondary retracting points C, and the transverse lines 131 between the retracting points S and the secondary retracting points C are burrs 150.
In step 312, please refer to fig. 12, all secondary retracting points C in the same closed section line 100 (i.e. the closed section line 100 with smaller area and the closed section line 100 with larger area) are connected to establish the weft side line 140 of the corresponding outer package supporting steel structure model.
In step 313, referring to fig. 13, the secondary retraction points C of the longitudinally adjacent closed section lines 100 are connected in one-to-one correspondence up and down to establish the longitudinal secondary axis 120 of the form of the overpack supporting steel structure. The modeling method is suitable for the outer package surface skin made of the same material for the outer package support steel structure modeling. The packaging material is particularly suitable for an outer packaging surface made of cement direct plastic (the name of English is abbreviated as TCP), and has good inclusion of finding out the outer packaging.
Steps 311 to 313 may replace steps 306 to 307 of the above embodiments. I.e. steps 310 to 313 are performed directly after steps 301 to 305. Of course, when the conditions coexist, steps 301 to 307, and steps 310 to 313 may be sequentially performed. When the conditions of steps 306 to 307, steps 308 to 310, and steps 311 to 313 coexist, steps 301 to 313 may be sequentially performed.
Referring to fig. 13, in the modeling method for the modeling axis of the outer package supporting steel structure according to the embodiment of the present invention, the retraction distance of the retraction point S of each of the transverse lines 131 is the same or different. The secondary retraction points C of each of the transverse lines 131 are the same or different in retraction distance. The setback distance of the setback point S of each of the lateral lines 131 is the same as or different from the setback distance of the secondary setback point C of each of the lateral lines 131. Wherein the retraction distance of the retraction point S is related to the thickness of the outer packing surface skin wrapped on the outer packing support steel structure model so that the outer contour dimension of the outer packing support steel structure model axis is matched with the specification dimension of the outer packing surface skin.
Referring to fig. 4, in the modeling method for the modeling axis of the outer package supporting steel structure provided by the embodiment of the invention, the direction of the initial azimuth angle of the ray 130 established on the closed section line 100 is the same. The method has the advantages of unifying azimuth angles, facilitating modeling and enabling the structure to be more regular.
Referring to fig. 4, in the modeling method of the modeling axis of the outer package supporting steel structure provided by the embodiment of the invention, a ray 130 in an orthogonal direction to the longitudinal main axis 110 is taken as a starting azimuth angle. Rays in orthogonal directions can be rapidly identified, drawing is accurate, and modeling accuracy and convenience can be improved.
Referring to fig. 4, in the modeling method for the modeling axis of the outer package supporting steel structure according to the embodiment of the present invention, the number of the equally divided circle establishing rays 130 is determined according to the area of the closed section line 100 of the outer package supporting steel structure. Wherein the distance between the intersection of ray 130 with closed cut line 100 may be 0.5-2m or more. The structure can also be adjusted according to the specification and the size of the outer package supporting steel structure model so as to ensure the stability of the structure.
When the modeling method for the modeling axis of the outer package support steel structure is used for modeling the outer package support steel structure, the longitudinal main axis 110 and the transverse line 131 can be selected and divided according to structural stress, and the longitudinal secondary axis 120 and the latitudinal edge 140 are required to be reserved so as to ensure structural stability. The outer package support steel structure modeling designed by the modeling method of the outer package support steel structure modeling axis provided by the embodiment of the invention is suitable for structures of cultural tourism projects.
The present invention is not limited to the above-described embodiments, but rather, the above-described embodiments are merely examples of some, but not all embodiments of the present invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention. Other levels of modification and variation to the present invention may occur to those skilled in the art. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims.
Claims (8)
1. A method of modeling an overwrap support steel structure modeling axis, comprising:
a closed section line of the outer package supporting steel structure model is established along the longitudinal direction;
taking an axial center point of a closed section line;
Connecting the axial center points of the longitudinal adjacent closed section lines to establish the longitudinal main axis of the outer package support steel structure model;
establishing a ray by taking the axial center point of the closed section line as a base point and equally dividing a circle, and intersecting the ray with the closed section line;
the method comprises the steps of retracting inwards on a ray along the intersection point of the ray and a closed cut line to enable the ray to form a transverse line, and enabling the end point of the transverse line close to the closed cut line to be a retracting point, wherein the retracting distance of the retracting point is related to the thickness of an outer package skin wrapped on an outer package supporting steel structure model;
When the areas of the longitudinal adjacent closed section lines are the same or different, connecting all the retracting points in the same closed section line to establish a weft-direction side line of the outer package supporting steel structure modeling;
and correspondingly connecting the retraction points of the longitudinally adjacent closed section lines up and down one by one to establish the longitudinal minor axis of the outer package support steel structure model.
2. The method of modeling an overpack supporting steel structure modeling axis of claim 1,
When the areas of the longitudinally adjacent closed cut lines are different, retracting the retracting point of one of the closed cut lines along the transverse line to form a secondary retracting point, wherein the transverse line between the retracting point and the secondary retracting point is a burr;
Connecting all secondary indentation points of the closed section line with the secondary indentation points to establish a weft side line thereof; connecting all the retracting points of the other closed section line to establish a weft side line thereof;
the method comprises the steps of connecting the retraction points of the closed section lines with only the retraction points in the longitudinally adjacent closed section lines with the secondary retraction points of the closed section lines with the secondary retraction points in one-to-one correspondence up and down to establish the longitudinal secondary axis of the outer package support steel structure model.
3. The method of modeling an overpack supporting steel structure modeling axis of claim 1,
When the areas of the longitudinally adjacent closed section lines are different, retracting the retracting points of the longitudinally adjacent closed section lines along the transverse lines to form secondary retracting points, wherein the transverse lines between the retracting points and the secondary retracting points are burrs;
Connecting all secondary retracting points in the same closed cutting line to establish a weft-direction side line of the corresponding outer package supporting steel structure model;
and connecting the secondary indentation points of the longitudinally adjacent closed section lines in one-to-one correspondence up and down to establish the longitudinal secondary axis of the outer package support steel structure model.
4. A method of modelling of an overpack supporting steel structure modelling axis according to claim 2 or 3, wherein the setback points, secondary setback points, of each of said transverse lines are the same or different.
5. Modeling method for an overpack supporting steel structure modeling axis according to claim 1, characterized in that the direction of the initial azimuth angle of the establishment of rays on the closed section line is the same.
6. The method of modeling an axis of a steel structure for supporting an exterior package according to claim 5, wherein the azimuth angle is started by a ray in a direction orthogonal to the principal axis of the longitudinal direction.
7. The modeling method of an axis of an overpack supporting steel structure model according to claim 1, wherein the number of establishment rays of the bisection circle is determined according to the size of the area of the closed cut line of the overpack supporting steel structure model.
8. The modeling method for an axis of an exterior package supporting steel structure according to claim 7, wherein a distance between an intersection point of the ray and the closed cut line is 0.5-2m or more.
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