Arc-shaped beam construction method based on Rhino and Grasshopper

Abstract

The invention discloses an arc-shaped beam construction method based on Rhino and Grasshopper. The specific construction process comprises the steps that firstly, construction preparation is conducted; 2, confirming a site coordinate base point; 3, preliminarily processing the model; 4, creating a model; step 5, reference point coordinate re-checking; checking whether the drawing and the model reference point coordinates are correct or not; step 6, creating and adjusting a lofting point; step 7, outputting coordinates; the coordinate points are exported in batches by utilizing a Grasshopper plug-in; 8, carrying out on-site lofting; and 9, comparing and analyzing data. A construction content model is established by adopting a Rhino modeling technology, coordinate data of a setting-out point are extracted and imported into a total station by adjusting a coordinate system of the model, and finally building setting-out measurement is carried out. The problem of accurate positioning of the arc-shaped beam is solved, and the construction quality of the arc-shaped beam is well guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and in particular relates to a method for constructing curved beams based on Rhino and Grasshopper. Background Technology

[0002] The traditional construction steps for measuring and setting out curved beams follow a five-step core process: preparation, layout, calculation, setting out, and verification, with each step closely adhering to precision control.

[0003] The work mainly involves first performing indoor calculations using analytical geometry, and then using a total station and a steel tape measure to lay out the lines.

[0004] The main problems with this construction method are: It requires simple equipment, only conventional tools such as measuring tapes, theodolites, and levels, without the need for specialized precision instruments. The technical threshold is moderate; through long-term practical experience, construction workers can easily understand and master the operating procedures. Costs are controllable, with no additional equipment purchase or rental fees, making it suitable for small projects or scenarios with limited funds. However, it suffers from low accuracy; when the structure is large, the amount of calculation data and actual measurement work increases, leading to a higher error rate; as a major load-bearing component, the construction quality of the curved beam directly affects the overall structural quality; and under seismic loads, curved beams may fail prematurely due to the greater bending moment experienced by straight beams. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and solve the technical problems of low accuracy, large data volume, and high error rate in current construction. This invention is achieved through the following technical solutions: This invention provides a method for constructing curved beams based on Rhino and Grasshopper, the specific construction process of which includes: Step 1: Construction preparation; Step 2: Confirm the on-site coordinate base point; Step 3: Preliminary model processing; Step 4: Create the model; Step 5: Verify the coordinates of the reference points; check whether the coordinates of the reference points on the drawings and model are correct. Step 6: Create and adjust the layout points; Step 7: Output coordinates; use the Grasshopper plugin to batch export coordinate points. Step 8: On-site layout; Step nine: Data comparison and analysis.

[0006] Further, in step one, confirm the construction content and perform preliminary processing of CAD drawings, mainly by removing redundant layers, exploding blocks, and deleting redundant structures; Further, in step two, use AutoCAD to mark the coordinate base points of the lofting model on the drawing; use Rhino software to link the coordinate positioning map; Further, in step three, set modeling standards according to actual needs, import the pre-processed CAD drawings, modify the model units, and before creating the model, check whether the relevant range lines are on the same plane, whether there are gaps, etc., and manage the drawings according to layers.

[0007] Further, in step four, a refined model is created using Rhino software based on the modeling standards and drawings; a three-dimensional model of a multi-segment circular arc concrete structure is created.

[0008] Further, in step six, the multi-segment circular arc structure has multiple complex nodes. The coordinates of the arc beam are exported using Rhino analysis commands, inspection commands, and Grasshopper batch export.

[0009] Further, in step eight, the coordinate file is imported into the total station for on-site layout. During the construction process, multiple re-measurements and verifications are conducted to ensure the accuracy of the points and guarantee the overall layout effect of the construction.

[0010] Furthermore, to verify the accuracy of Rhino and Grasshopper layout software, 10 sets of coordinates were randomly selected from the background engineering structure. The measured coordinate data were compared with the theoretical data. The layout deviation was basically within 1mm, verifying that the measurement layout accuracy met the requirements.

[0011] The present invention has the following beneficial effects: 1. The present invention provides a method for constructing curved beams based on Rhino and Grasshopper. It employs Rhino modeling technology to establish a construction content model, adjusts the model's coordinate system, extracts the coordinate data of the layout points, imports them into a total station, and finally performs building layout measurements. This solves the problem of accurate positioning of curved beams, thus ensuring better construction quality.

[0012] 2. The curved beam construction method based on Rhino and Grasshopper provided by this invention reduces the error rate of curved beam layout, ensures measurement quality, accelerates construction progress, solves the problem of accurate positioning of curved beams, avoids rework, and ensures better construction quality. Attached Figure Description

[0013] Figure 1 A flowchart of the construction method for curved beams; Figure 2 This is a CAD drawing for a certain project; Figure 3 Used as the coordinate base point for the layout project; Figure 4 Model and locate in Rhino; Figure 5 For pre-modeling checks; Figure 6 This is a partial Rhino model; Figure 7 Verification based on benchmark points; Figure 8 For analysis commands Figure 9 For detection commands; Figure 10 Batch export for Grasshopper; Figure 11 Batch export coordinates for Grasshopper; Figure 12 This is a comparison of measured data and design data.

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0016] The construction process for curved beams based on Rhino and Grasshopper includes: Step 1: Construction Preparation. Confirm the construction scope and perform preliminary processing of CAD drawings, mainly by removing redundant layers, exploding blocks, and deleting unnecessary structures.

[0017] Step 2: Confirm the on-site coordinate base point.

[0018] Use AutoCAD to mark the coordinate base points of the lofting model on the drawing, such as... Figure 3 Using Rhino software, link the coordinate positioning map, such as... Figure 4 .

[0019] Step 3: Preliminary model processing.

[0020] Set modeling standards according to actual needs, import the pre-processed CAD drawings, modify the model units, and check whether the relevant range lines are on the same plane and whether there are gaps before creating the model. Then manage the drawing elements according to the layers.

[0021] Step 4: Create the model.

[0022] A detailed model was created using Rhino software based on modeling standards and drawings. A three-dimensional model of a multi-segment circular arc concrete structure was established.

[0023] Step 5: Verify the coordinates of the reference points. Check that the coordinates of the reference points on the drawings and model are correct.

[0024] Step 6: Create and adjust the lofting points. The multi-segment circular arc structure has multiple complex nodes; therefore, the coordinates of the arc beams are exported using Rhino analysis commands, inspection commands, and Grasshopper batch export.

[0025] Step 7: Output coordinates. Use the Grasshopper plugin to export coordinate points in batches.

[0026] Step 8: On-site layout. Import the coordinate file into the total station for on-site layout. During the construction process, multiple re-measurements and verifications are conducted to ensure the accuracy of the points and guarantee the overall layout effect of the construction.

[0027] Step Nine, Data Comparison and Analysis To verify the accuracy of Rhino and Grasshopper layout software, 10 sets of coordinates were randomly selected from the background engineering structure. The measured coordinate data were compared with the theoretical data. Figure 12 As shown, the layout deviation is basically within 1mm, verifying that the measurement layout accuracy meets the requirements. Specific implementation examples: The following is a benefit analysis using the construction of a kindergarten in a certain hospital project as an example: The main cross-sectional dimensions of the curved beams in the kindergarten are 200*650 and 300*650, with a maximum length of 30m. 1. High measurement efficiency. Taking a circular arc beam as an example, with a total length of 30m and 30 measurement points, the data processing efficiency is high. The processing time is 1 hour for one person, and 2 people are needed on-site for a total of 2 hours. Traditional surveying methods require 4 hours for one person to process data and 5 hours for on-site layout with 2 people. Therefore, using this method can significantly reduce the manpower and time required for surveying work, and greatly improve efficiency.

[0029] To address the problems of high error rate in layout of curved structures, large amount of coordinate data, large amount of actual measurement work, and inability to effectively locate points and determine the positional relationship between the spatial point plane projection and the floor grid using traditional methods, this construction method is adopted, which solves the problem of accurate positioning of curved beams and ensures better construction quality.

[0030] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A method for construction of curved beams based on Rhino and Grasshopper, characterized in that, The specific construction process includes: Step one, construction preparation; Step two, confirm the site coordinate base point; Step three, preliminary processing of the model; Step four, create a model; Step five, benchmark coordinate review; check if the model benchmark coordinate is correct; Step six, create and adjust the layout point; Step seven, output coordinates; use the Grasshopper plug-in to batch export coordinate points; Step eight, field layout; Step nine, data comparison and analysis.

2. The segmental construction method of claim 1, wherein Step one, confirm the construction content, preliminary processing of CAD drawings, mainly to remove redundant layers, blow up the blocks, delete redundant structure.

3. The segmental construction method of claim 1, wherein Step two, use AutoCAD to mark the coordinate base point of the layout model in the drawing; use Rhino software to link the coordinate positioning map.

4. The segmental construction method according to claim 1, wherein Step three, set the modeling standard according to the actual needs, import the preliminary processed CAD drawing, modify the model unit, check if the related range lines are in the same plane, if there are gaps, etc. before creating the model, and manage the drawing according to the layer.

5. The segmental construction method according to claim 1, wherein Step four, according to the modeling standard and drawing, use Rhino software to establish a refined model; establish a three-dimensional model of multi-segment circular arc concrete structure.

6. The segmental construction method according to claim 1, wherein Step six, multi-segment circular arc structure has multiple complex nodes, through Rhino analysis command, detection command, Grasshopper batch export, export arc beam coordinates.

7. The segmental construction method according to claim 1, wherein Step eight, import the coordinate file into the total station for field layout. In the construction process, through multiple re-measurement and correction, ensure the accuracy of the point position and the overall layout effect of the construction.

8. The segmental construction method according to claim 1, wherein To verify the accuracy of Rhino and Grasshopper layout software, 10 groups of coordinates were randomly selected from the background engineering structure, and the measured coordinate point data was compared with the theoretical data. The layout deviation is basically within 1mm, which verifies that the measurement and layout accuracy meets the requirements.

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