CN112632672A - Building structure load-guiding virtual surface modeling method - Google Patents
Building structure load-guiding virtual surface modeling method Download PDFInfo
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Abstract
The invention discloses a modeling method of a load-guiding virtual surface of a building structure, which comprises the steps of establishing an integral rod piece container, an outer edge rod piece container, a first adjacent edge container and a second adjacent edge container; storing the rods of the axis model into an integral rod container; storing the outermost edge rods to an outer edge rod container; determining a first adjacent rod piece and storing the first adjacent rod piece to a first adjacent edge container; determining triangular closed connection and establishing a triangular load conducting virtual surface unit; when triangular closed connection does not exist, finding out a second adjacent rod piece connected with the first adjacent rod piece and storing the second adjacent rod piece into a second adjacent side container, and determining quadrilateral closed connection to establish a quadrilateral load guiding virtual surface unit; after the load guiding virtual surface unit is built, deleting the outermost edge rod piece in the outer edge rod piece container, and building the load guiding virtual surface unit by taking the first adjacent rod piece and the second adjacent rod piece in the first adjacent edge container and the second adjacent edge container as the outermost edge rod piece in an inward circulation mode. The invention can improve the modeling efficiency and precision.
Description
Technical Field
The invention relates to the field of building structure modeling, in particular to a building structure load-conducting virtual surface modeling method.
Background
At present, building structures and curtain wall projects are more complex and the building size is huge, and load-conducting virtual surfaces are required to assist the design in the manufacturing and designing processes of the building structures and the curtain walls so as to ensure the structural strength of the building structures and the curtain walls. The manual establishment of the load guiding virtual surface has low efficiency and serious errors, thereby causing low modeling precision. In addition, the pilot load is manually established
The modeling period of the virtual surface is long and the modeling efficiency is low.
Disclosure of Invention
The invention aims to solve the technical problem of providing a modeling method of a load-conducting virtual surface of a building structure so as to realize automatic modeling and improve modeling efficiency and modeling precision.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a method for modeling a load-conducting virtual surface of a building structure comprises the following steps:
step 201, providing an axis model of a building structure in modeling software with a programming interface, wherein the axis model is formed by connecting a plurality of rod pieces;
step 202, establishing an integral rod container, an outer edge rod container, a first adjacent edge container and a second adjacent edge container;
step 203, storing all rod pieces of which the axis models of the load guiding virtual surfaces need to be established into an integral rod piece container;
step 204, extracting the outermost edge rods in the axis model, storing the outermost edge rods into an outer edge rod container, and deleting the outermost edge rods from the whole rod container;
step 205, extracting coordinate points of end points of the outermost edge rods in the outer edge rod container and coordinate points of end points of the rest rods in the whole rod container, calculating distances between each end point of the outermost edge rods and each end point of the rest rods in the whole rod container, determining the rest rods corresponding to the end point tolerance range as first adjacent rods when the distances between the end points of the outermost edge rods and the end points of the rest rods in the whole rod container accord with the end point tolerance range, and storing the first adjacent rods in the first adjacent side container;
step 206, extracting coordinate points of end points of first adjacent rods in the first adjacent side container, and calculating the distance between the end points of all the first adjacent rods; judging whether the distance between the end points of two first adjacent rod pieces accords with an end point tolerance range or not; when the distance between the end points of two first adjacent rod pieces accords with the end point tolerance range, determining that triangular closed connection exists between the two first adjacent rod pieces and the outermost edge rod piece, and automatically establishing a triangular load guiding virtual surface unit in the same direction by taking the outermost edge rod piece and any one end point of the two first adjacent rod pieces which are constructed into the triangular closed connection as starting points; otherwise, determining that no triangular closed connection exists between the first adjacent rod piece and the outermost edge rod piece in the first adjacent edge container; step 209 is executed;
step 208, after the triangular loading dummy face unit is established, deleting the outermost edge rod piece in the corresponding triangular closed connection from the outer edge rod piece container, transferring and storing the first adjacent rod piece in the corresponding triangular closed connection from the first adjacent edge container to the outer edge rod piece container as the outermost edge rod piece, deleting the outermost edge rod piece from the whole rod piece container, and emptying the first adjacent edge container; step 205 is executed circularly;
step 209, extracting coordinate points of end points of all first adjacent rod pieces in the first adjacent side container, and calculating distances between the end points of the first adjacent rod pieces and end points of the rest rod pieces in the whole rod piece container; when the distance between the end point of the first adjacent rod piece and the end points of the rest rod pieces in the integral rod piece container is in accordance with the end point tolerance range, determining that the first adjacent rod piece is connected with the rest rod pieces in the integral rod piece container, and determining the rest rod pieces in accordance with the end point tolerance range as second adjacent rod pieces to be stored in the second adjacent side container;
step 210, checking all second adjacent rod pieces in the second adjacent container, and when the second adjacent rod pieces are overlapped in the second adjacent container, determining that quadrilateral closed connection exists between the overlapped second adjacent rod pieces and two adjacent first adjacent rod pieces and between the overlapped second adjacent rod pieces and the outermost edge rod piece, so as to automatically establish a quadrilateral load guiding virtual surface unit in the same direction by taking any end point of the outermost edge rod piece, the two first adjacent rod pieces and the second adjacent rod piece which are constructed into the quadrilateral closed connection as a starting point;
step 211, after the quadrilateral load-conducting virtual surface unit is established, deleting the outermost edge rod piece in the corresponding quadrilateral closed connection from the outer edge rod piece container, and simultaneously transferring and storing the first adjacent rod piece in the corresponding quadrilateral closed connection from the first adjacent edge container to the outer edge rod piece container as the outermost edge rod piece; transferring and storing a second adjacent rod in the corresponding quadrilateral closed connection from the second adjacent edge container into the outer edge rod container to serve as an outermost edge rod, and emptying the first adjacent edge container and the second adjacent edge container; step 205 is executed circularly;
and 212, completing the automatic modeling of the load guiding virtual surfaces of the building structure after completing the establishment of all the load guiding virtual surface units on the axis model.
Further, the method for modeling the loading-inducing virtual surface of the building structure provided by the invention removes the overlapped rods in the axis model before step 202.
Further, according to the modeling method of the load-conducting virtual surface of the building structure, the axis model is manually established.
Furthermore, the modeling method of the building structure load-conducting virtual surface provided by the invention captures coordinate points through a programming language and automatically establishes an axis model.
Further, in the method for modeling the loading-inducing virtual surface of the building structure provided by the invention, in step 204, the outermost edge rod pieces in the extracted axis model are obtained through manual point picking or automatic capture.
Further, according to the modeling method for the loading-inducing virtual surface of the building structure provided by the present invention, the same direction in the step 206 and the step 210 is a clockwise direction or a counterclockwise direction.
Further, according to the modeling method of the load-conducting virtual surface of the building structure, the end point tolerance range is a preset value above 0.
Further, according to the modeling method of the load-guiding virtual surface of the building structure, when a triangular closed connection and a quadrilateral closed connection exist, and when the distance between the end points is smaller than the tolerance range of the end points, a corresponding triangular or quadrilateral load-guiding virtual surface unit is constructed on the basis of any one end point.
Compared with the prior art, the invention has the following beneficial effects:
the building structure load-conducting virtual surface modeling method provided by the invention can automatically search the triangular closed connection rod piece and the quadrilateral closed connection rod piece from outside to inside according to the axis model, and automatically establish the corresponding triangular load-conducting virtual surface unit and the quadrilateral load-conducting virtual surface unit until the complete load-conducting virtual surface establishment is automatically completed for all the rod pieces of the axis model, thereby realizing the automation of the building structure load-conducting virtual surface, reducing the error caused by visual fatigue in manual modeling, improving the modeling efficiency and the modeling precision and shortening the modeling period. Particularly for large project effects, the modeling efficiency and the modeling period are more remarkable.
Drawings
FIG. 1 is a schematic structural view of an axial model of a building structure;
FIG. 2 is a schematic diagram of the structure of the outermost edge rod piece extracted on the axis model;
fig. 3 to 4 are schematic views of a partial enlarged structure of a unit for creating a triangular loading-guiding virtual surface;
FIG. 5 is a schematic view of the overall structure of a triangular loading-guiding virtual surface unit built on an axis model;
FIG. 6 is a schematic view of the structure of a first adjacent rod member whose connection is determined on an outermost rod member;
FIG. 7 is a schematic view of a second adjacent rod on the outermost rod that defines its connection with a first adjacent rod;
FIG. 8 is a schematic view of a second adjacent bar on another first adjacent bar on the outermost bar determining its connection;
FIG. 9 is a schematic structural diagram of a second adjacent rod member for determining overlap and a unit for constructing a quadrilateral load-guiding virtual surface;
FIG. 10 is a schematic structural diagram of a quadrilateral dummy plane unit for guiding load along a clockwise direction;
FIG. 11 is a schematic structural diagram of a quadrilateral dummy surface unit for load guiding in a counterclockwise direction;
FIG. 12 is a schematic view of the overall structure of a quadrilateral dummy surface unit for guiding load built on an axis model;
FIG. 13 is a schematic structural diagram of an axial model for creating a complete loading virtual surface;
FIG. 14 is a schematic structural view of an axis model and a dummy load-inducing surface thereof disposed on a beam;
FIG. 15 is a reinforcement bar construction designed by a load-conducting virtual surface;
fig. 16 is a schematic structural view of a building structure formed by casting concrete to a steel structure according to the design;
shown in the figure:
100. the system comprises an axis model, 300 parts of a load guide virtual surface, 310 parts of a triangular load guide virtual surface unit, 320 parts of a quadrilateral load guide virtual surface unit, 400 parts of a beam, 500 parts of a reinforcing steel bar structure; 600. a building structure; w is the outermost rod, Q is the first adjacent rod, and P is the second adjacent rod.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
referring to fig. 1 to 8, an embodiment of the present invention provides a method for modeling a load-guiding virtual surface of a building structure, which includes the following steps:
referring to fig. 1, an axis model 100 of a building structure is provided in a modeling software having a programming interface, wherein the axis model 100 is formed by connecting a plurality of rods. Wherein the axis model 100 is built according to the design requirements of the building structure. The modeling software includes but is not limited to CAD engineering drawing software, and the programming language of the programming interface includes but is not limited to lisp, vb, ARX (C + +), C #, and other open programming languages. Modeling software includes, but is not limited to, rhino, which may correspond to programming languages such as gradshopper (gh), Python, VB, C #, Java, and the like. Any engineering software which can be secondarily developed and only provides a programming interface can utilize the logic of the method to realize efficient and accurate modeling.
Step 202, establishing an integral rod container, an outer edge rod container, a first adjacent edge container and a second adjacent edge container;
in step 203, please refer to fig. 1, all the rods needed to establish the axis model 100 of the loading virtual surface are stored in the integral rod container.
In step 204, referring to fig. 2, an outer edge rod container is established, the outermost edge rods in the axis model 100 are extracted, the outermost edge rods are stored in the outer edge rod container, and the outermost edge rods are deleted from the entire rod container. Wherein the outermost edge bar is designated by the letter W. The different outermost edge bars are represented by a numerical code following W. For example, the number 1 outermost rod is W1, the number 2 outermost rod is W2, and so on.
Step 205, please refer to fig. 3 to 4, extract the coordinate points of the end points of the outermost rods in the outer-edge rod container and the coordinate points of the end points of the remaining rods in the entire rod container, calculate the distance between each end point of the outermost rod and each end point of the remaining rods in the entire rod container, when the distance between the end point of the outermost rod and the end point of the remaining rods in the entire rod container conforms to the end point tolerance range, determine the remaining rods corresponding to the end point tolerance range as the first adjacent rod, and store the first adjacent rod in the first adjacent container. The first adjacent rod members of the embodiments of the present invention are denoted by the letter Q, and the different first adjacent rod members are denoted by numerical codes following Q, for example, Q1-Q5 denote the first adjacent rod members No. 1 to No. 5, and so on. The embodiment of the present invention is described with reference to the outermost rod W1, both ends of which include a proximal end point and a distal end point, distances between the proximal end point and the distal end point of the outermost rod W1 and the two end points of the remaining rods in the entire rod container are calculated, respectively, and when the end points of the remaining rods and the proximal end point or the distal end point of the outermost rod W1 meet an end point tolerance range, it is determined that Q1-Q5 are first adjacent rods and the remaining rods of the remaining rods are not first adjacent rods. Wherein the end point tolerance range is a preset value above 0. When the end point tolerance range is 0, the connection relationship between the outermost edge rod piece W1 and the first adjacent rod piece is described as the intersection point, and when the end point tolerance range is greater than 0, the connection relationship between the outermost edge rod piece W1 and the first adjacent rod piece is described as the non-intersection point, and the reason why the connection relationship is substantially the non-intersection point is due to the selection error of manual modeling or the capture error of automatic modeling. According to the embodiment of the invention, the aspect that the end points of the outermost edge rod piece W1 and the first adjacent rod piece are not intersected but are actually in a connection relation is considered, so that the inclusion of automatic modeling is increased in one direction, the modeling precision is improved, and omission is avoided.
In step 206, referring to fig. 3 to 4, coordinate points of the end points of the first adjacent rods in the first adjacent side container are extracted, and distances between the end points of all the first adjacent rods are calculated.
Step 207, please refer to fig. 3 to 4, determine whether there is a distance between the end points of the two first adjacent rods that meets the end point tolerance range; and when the distance between the end points of the two first adjacent rod pieces meets the end point tolerance range, determining that triangular closed connection exists between the two first adjacent rod pieces and the outermost edge rod piece, and automatically establishing a triangular load-conducting virtual surface unit in the same direction by taking the outermost edge rod piece and any one end point of the two first adjacent rod pieces which are used for constructing the triangular closed connection as starting points. Otherwise, determining that no triangular closed connection exists between the first adjacent rod piece and the outermost edge rod piece in the first adjacent edge container; step 209 is performed. The embodiment of the present invention is described by taking the outermost rod W1 as an example, wherein the distances between the endpoints of the first adjacent rods Q1 and Q2 meet the endpoint tolerance range, it is determined that there is an intersecting connection relationship between the first adjacent rods Q1 and Q2, and the distances between the first adjacent rods Q1 and Q3, Q4, and Q5, and between the first adjacent rods Q2 and Q3, Q4, and Q5 do not meet the endpoint tolerance range, so there is no intersecting relationship, and there is a triangular closed connection between the first adjacent rods Q1 and Q2 and the outermost rod W1, so as to construct the triangular load guiding virtual surface unit 310. In fig. 4, the case where the distance between the first adjacent rod pieces Q1 and Q2 is 0, that is, the intersecting connection relationship exists, and in fig. 3, the case where the distance between the first adjacent rod pieces Q1 and Q2 is greater than 0, the non-intersecting but substantial connection relationship exists. By judging the condition that the end point tolerance range is larger than 0, the accuracy and the modeling precision of establishing the load guiding virtual surface unit are improved, and omission is avoided.
Step 208, referring to fig. 5, after the triangular loading dummy face unit is established, deleting the outermost edge rod piece in the corresponding triangular closed connection from the outer edge rod piece container, transferring and storing the first adjacent rod piece in the corresponding triangular closed connection from the first adjacent edge container to the outer edge rod piece container as the outermost edge rod piece, deleting the outermost edge rod piece from the whole rod piece container, and emptying the first adjacent edge container; step 205 is executed in a loop. Namely, the outermost edge bar member W1 was deleted, and the first adjacent bar members Q1, Q2 were further modeled as the outermost edge bar members by the inward loop operation. The outermost edge rod piece W1 in the constructed triangular load-conducting virtual surface unit is deleted, so that the calculation amount of subsequent rod pieces can be reduced, and the modeling efficiency is improved.
Step 209, please refer to fig. 6 to 9, extracting coordinate points of end points of all the first adjacent rods in the first adjacent side container, and calculating distances between the end points of the first adjacent rods and end points of the remaining rods in the whole rod container; and when the distance between the end point of the first adjacent rod piece and the end points of the rest rod pieces in the integral rod piece container conforms to the end point tolerance range, determining that the first adjacent rod piece is connected with the rest rod pieces in the integral rod piece container, and determining the rest rod pieces conforming to the end point tolerance range as second adjacent rod pieces to be stored in the second adjacent side container. Namely, the first adjacent rod member connected to the outermost edge rod member W1 is judged to be Q1-Q5 by whether the end point tolerance range is met, and the remaining rod members among the remaining rod members are not the first adjacent rod member. In the embodiment of the invention, the letter P is used for indicating the second adjacent rod piece, different second adjacent rod pieces are indicated by numerical codes behind the letter P, for example, P1-P5 indicate the second adjacent rod pieces from No. 1 to No. 5, and the like. The rod pieces corresponding to the end point tolerance range between the first adjacent rod piece Q1 and the rest of the rod pieces are second adjacent rod pieces P1-P3, and the rod pieces corresponding to the end point tolerance range between the first adjacent rod piece Q2 and the rest of the rod pieces are second adjacent rod pieces P1, P4 and P5. Namely, the second adjacent rod piece is P1-P5, and the rest rod pieces are not the second adjacent rod pieces.
Step 210, please refer to fig. 7 to 9, all second adjacent rods in the second adjacent containers are checked, and when there is an overlapped second adjacent rod in the second adjacent containers, it is determined that there is a quadrilateral closed connection between the overlapped second adjacent rod and the adjacent two first adjacent rods and the outermost rod, so as to construct a quadrilateral closed connection outermost rod, any one of the two first adjacent rods and one second adjacent rod, and automatically establish a quadrilateral load-guiding virtual surface unit in the same direction with the starting point as any one of the end points. I.e. the second adjacent bar P1 is checked as overlapping second adjacent bars, respectively. It is thus determined that the outermost edge bar W1, the first adjacent bar Q1, Q2 and the second adjacent bar P1 form a quadrilateral closed connection therebetween to automatically establish the quadrilateral load-conducting imaginary surface unit 320. In the embodiment of the present invention, whether the quadrilateral closed connection exists is determined by the overlapped second adjacent rod pieces, and the quadrilateral load-guiding virtual surface unit 320 is established accordingly. Therefore, the modeling efficiency and the modeling precision are improved, omission is avoided, and the situation that whether quadrilateral closed connection exists or not cannot be judged due to connection errors is avoided. Referring to fig. 10 to 11, when the quadrilateral loading virtual surface unit 320 is established, the process may be performed in a clockwise direction or a counterclockwise direction. In order to ensure that the modeling is more orderly and regularly established, all the load-conducting virtual surface units are established in the same direction, so that the situations of confusion and repeated modeling are avoided when the load-conducting virtual surface units are established.
Step 211, referring to fig. 12, after the quadrilateral loading virtual surface unit is established, deleting the outermost edge rod in the corresponding quadrilateral closed connection from the outer edge rod container, and simultaneously transferring and storing the first adjacent rod in the corresponding quadrilateral closed connection from the first adjacent edge container to the outer edge rod container as the outermost edge rod; transferring and storing a second adjacent rod in the corresponding quadrilateral closed connection from the second adjacent edge container into the outer edge rod container to serve as an outermost edge rod, and emptying the first adjacent edge container and the second adjacent edge container; step 205 is executed in a loop. Namely, the outermost edge bar W1 was deleted, and the first adjacent bars Q1, Q2 and the second adjacent bar P1 were modeled as the outermost insulating bars, continuing the loop operation inward.
In step 212, referring to fig. 13, after the axial model 100 completes the establishment of all the load guiding virtual surface units, the automatic modeling of the load guiding virtual surface of the building structure is completed.
Referring to fig. 14 to 16, the axial model 100 and the load-inducing dummy face 300 thereon are installed on the girder 400, load force is applied to match the reinforcing steel structure 500 of the building structure, and concrete is poured or an outer covering skin is provided on the reinforcing steel structure 500 to complete the building structure 600. The embodiment of the invention is particularly suitable for designing the special-shaped building structure 600 in the complex space. The building structure 600 includes, but is not limited to, a shed, a roof structure, and any other complex space irregular structure having a curved surface relationship. The irregular structure herein mainly refers to a non-planar relationship.
According to the modeling method for the load-conducting virtual surface of the building structure provided by the embodiment of the invention, before the step 202, the overlapped rods in the axis model are removed. And the overlapped rod pieces are removed, so that the calculation amount can be reduced, and the modeling efficiency is improved. In addition, the situation that the coordinate points of the overlapped rod pieces are not uniform and the coordinate points are mistakenly captured can be avoided by removing the overlapped rod pieces, and the situation that the load guide virtual surface unit is established in a disordered mode and the load guide virtual surface unit is established in a partially overlapped mode due to the fact that different coordinate points of the overlapped rod pieces are captured at the same time can be avoided, so that the modeling precision is improved.
According to the modeling method of the load-conducting virtual surface of the building structure, provided by the embodiment of the invention, the axis model can be manually established, and can also be automatically established by capturing coordinate points through a programming language.
In step 204, the outermost edge rod piece in the extracted axis model is obtained by manual point picking or automatic capture. Wherein automatically capturing acquisition refers to automatically capturing through input through a programming language in modeling software having a programming interface.
According to the modeling method for the load-conducting virtual surface of the building structure provided by the embodiment of the invention, the same direction in the step 206 and the step 210 can be a clockwise direction or a counterclockwise direction. Namely, the triangular load-conducting virtual surface unit and the quadrilateral load-conducting virtual surface unit are established in the same direction and orderly carried out according to rules, so that disorder and repetition are avoided.
According to the modeling method for the load-conducting virtual surface of the building structure provided by the embodiment of the invention, the end point tolerance range is a preset value above 0. The preset value can be adjusted according to the recognition accuracy of the modeling software. Wherein "above" includes the instant numbers.
According to the modeling method of the load-conducting virtual surface of the building structure provided by the embodiment of the invention, when the triangular closed connection and the quadrilateral closed connection exist and the distance between the end points is smaller than the tolerance range of the end points, a corresponding triangular or quadrilateral load-conducting virtual surface unit is constructed on the basis of any end point.
The modeling method of the building structure load-conducting virtual surface provided by the embodiment of the invention can automatically search the triangular closed connection rod piece and the quadrilateral closed connection rod piece from outside to inside according to the axis model, and automatically establish the corresponding triangular load-conducting virtual surface unit and the quadrilateral load-conducting virtual surface unit until the complete establishment of the load-conducting virtual surface is automatically completed for all the rod pieces of the axis model, thereby realizing the automation of the building structure load-conducting virtual surface, reducing the error caused by visual fatigue in manual modeling, improving the modeling efficiency and the modeling precision and shortening the modeling period. Particularly for large project effects, the modeling efficiency and the modeling period are more remarkable.
According to the modeling method for the load-conducting virtual surface of the building structure, provided by the embodiment of the invention, the load-conducting virtual surface units are built through automatically modeling by searching the triangular or quadrilateral closed connection relation between the rod pieces in the container through programming by using modeling software with a programming interface, so that the workload and the working strength of manual mouse modeling can be reduced, and errors caused by visual fatigue are avoided. Wherein a container refers to a storage space.
The present invention is not limited to the above-described specific embodiments, and it is apparent that the above-described embodiments are some, not all, of the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention. Other levels of modification and variation of the present invention may be made by those skilled in the art. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims.
Claims (8)
1. A method for modeling a load-conducting virtual surface of a building structure is characterized by comprising the following steps:
step 201, providing an axis model of a building structure in modeling software with a programming interface, wherein the axis model is formed by connecting a plurality of rod pieces;
step 202, establishing an integral rod container, an outer edge rod container, a first adjacent edge container and a second adjacent edge container;
step 203, storing all rod pieces of which the axis models of the load guiding virtual surfaces need to be established into an integral rod piece container;
step 204, extracting the outermost edge rods in the axis model, storing the outermost edge rods into an outer edge rod container, and deleting the outermost edge rods from the whole rod container;
step 205, extracting coordinate points of end points of the outermost edge rods in the outer edge rod container and coordinate points of end points of the rest rods in the whole rod container, calculating distances between each end point of the outermost edge rods and each end point of the rest rods in the whole rod container, determining the rest rods corresponding to the end point tolerance range as first adjacent rods when the distances between the end points of the outermost edge rods and the end points of the rest rods in the whole rod container accord with the end point tolerance range, and storing the first adjacent rods in the first adjacent side container;
step 206, extracting coordinate points of end points of first adjacent rods in the first adjacent side container, and calculating the distance between the end points of all the first adjacent rods; judging whether the distance between the end points of two first adjacent rod pieces accords with an end point tolerance range or not; when the distance between the end points of two first adjacent rod pieces accords with the end point tolerance range, determining that triangular closed connection exists between the two first adjacent rod pieces and the outermost edge rod piece, and automatically establishing a triangular load guiding virtual surface unit in the same direction by taking the outermost edge rod piece and any one end point of the two first adjacent rod pieces which are constructed into the triangular closed connection as starting points; otherwise, determining that no triangular closed connection exists between the first adjacent rod piece and the outermost edge rod piece in the first adjacent edge container; step 209 is executed;
step 208, after the triangular loading dummy face unit is established, deleting the outermost edge rod piece in the corresponding triangular closed connection from the outer edge rod piece container, transferring and storing the first adjacent rod piece in the corresponding triangular closed connection from the first adjacent edge container to the outer edge rod piece container as the outermost edge rod piece, deleting the outermost edge rod piece from the whole rod piece container, and emptying the first adjacent edge container; step 205 is executed circularly;
step 209, extracting coordinate points of end points of all first adjacent rod pieces in the first adjacent side container, and calculating distances between the end points of the first adjacent rod pieces and end points of the rest rod pieces in the whole rod piece container; when the distance between the end point of the first adjacent rod piece and the end points of the rest rod pieces in the integral rod piece container is in accordance with the end point tolerance range, determining that the first adjacent rod piece is connected with the rest rod pieces in the integral rod piece container, and determining the rest rod pieces in accordance with the end point tolerance range as second adjacent rod pieces to be stored in the second adjacent side container;
step 210, checking all second adjacent rod pieces in the second adjacent container, and when the second adjacent rod pieces are overlapped in the second adjacent container, determining that quadrilateral closed connection exists between the overlapped second adjacent rod pieces and two adjacent first adjacent rod pieces and between the overlapped second adjacent rod pieces and the outermost edge rod piece, so as to automatically establish a quadrilateral load guiding virtual surface unit in the same direction by taking any end point of the outermost edge rod piece, the two first adjacent rod pieces and the second adjacent rod piece which are constructed into the quadrilateral closed connection as a starting point;
step 211, after the quadrilateral load-conducting virtual surface unit is established, deleting the outermost edge rod piece in the corresponding quadrilateral closed connection from the outer edge rod piece container, and simultaneously transferring and storing the first adjacent rod piece in the corresponding quadrilateral closed connection from the first adjacent edge container to the outer edge rod piece container as the outermost edge rod piece; transferring and storing a second adjacent rod in the corresponding quadrilateral closed connection from the second adjacent edge container into the outer edge rod container to serve as an outermost edge rod, and emptying the first adjacent edge container and the second adjacent edge container; step 205 is executed circularly;
and 212, completing the automatic modeling of the load guiding virtual surfaces of the building structure after completing the establishment of all the load guiding virtual surface units on the axis model.
2. The method of claim 1, wherein prior to step 202, the overlapping rods in the axis model are removed.
3. The method of claim 1, wherein the axis model is created manually.
4. The method of claim 1, wherein the axis model is automatically created by capturing coordinate points in a programming language.
5. The method for modeling a load bearing virtual surface of a building structure according to claim 1, wherein in step 204, the outermost edge rod pieces in the extracted axis model are obtained by manual point picking or automatic capture.
6. The method of claim 1, wherein the same direction in step 206 and step 210 is clockwise or counterclockwise.
7. The method of claim 1, wherein the end point tolerance range is a predetermined value greater than 0.
8. The method of claim 1, wherein when triangular closed connections and quadrilateral closed connections are present, when the distance between the end points is smaller than the end point tolerance range, the corresponding triangular or quadrilateral load-inducing virtual surface unit is constructed based on any one of the end points.
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