BIM (Building Information Modeling)-based stadium building acoustic construction method

Abstract

The invention relates to a BIM (Building Information Modeling)-based stadium building acoustic construction method. The method comprises the following steps: step 1, carrying out BIM modeling; 2, using acoustic simulation and test software; 3, detecting and correcting the model; 4, a model meeting the requirement is formed; 5, establishing a three-dimensional coordinate system in the BIM model space; step 6, arranging sound source transmitting and receiving devices on site; 7, testing the sound source in different positions and scenes; and 8, stadium construction and equipment installation are carried out. It is ensured that the architectural acoustic quality of the venue is remarkably improved, and therefore the use requirements of people for high quality and high experience of different functions of the venue are met.

Description

Technical Field

[0001] The present invention relates to the field of venue building acoustic construction, specifically an acoustic construction method for venue buildings based on BIM. Background Art

[0002] With the increasing level of people's material life, the pursuit of spiritual culture is also on the rise. Modern large-scale venue buildings are exactly the places to meet the cultural needs of the people. Therefore, the demand for the use quality of venue buildings has been further improved. The acoustic requirements of venue buildings directly affect the satisfaction of the use experience. Large venues generally undertake important economic and cultural functions, and may have important sports events, various concerts, variety shows, music performances, large conferences and other use functions, and have more requirements in the design of the venue acoustic environment. Acoustic building construction requires the cooperation of multiple specialties and multiple units, and involves core specialties such as stage equipment, lighting, and sound; there are strict acoustic decoration requirements for walls, ceilings, grandstands, auditoriums, orchestra pits, and floors. Therefore, to achieve the required acoustic environment effect design, various means and measures need to be taken during the construction stage to ensure that all building facilities in the completed venue can meet the design requirements. In particular, almost all building structures and equipment facilities in large venues will affect the acoustic environment effect of the venue, and must be constructed and installed strictly in accordance with the design; it is necessary to construct, detect, calibrate, and correct deviations during the construction process, so as to discover problems early and reduce rework. Summary of the Invention

[0003] The present invention aims to overcome the defects of the prior art and provides an acoustic construction method for venue buildings based on BIM, so as to solve the problems that the poor construction quality of venue buildings with high acoustic requirements affects the acoustic effect of the venue and the use function.

[0004] To solve the above technical problems, the present invention is realized as follows: An acoustic construction method for venue buildings based on BIM, characterized in that it includes the following steps: Step 1: BIM modeling; Step 2: Use acoustic simulation and testing software; Step 3: Detect and correct the model; Step 4: Form a model that meets the requirements; Step 5: Establish a three-dimensional coordinate system in the BIM model space; Step 6: Install sound source emission and receiving devices on site; Step 7: Test the sound source at different positions and scenarios; Step 8: Venue construction and equipment installation.

[0005] The described BIM-based construction method for venue building acoustics is characterized in that: noise is simulated at the relative planned orientation of the venue, a sound receiving and sensing device is set inside the venue, and after receiving the sound, the above method is used for analysis to simulate and test the influence degree of the noise on the building acoustics effect of the venue after the external planned facilities are built, find out the weak points, and feedback to the design for improvement and additional noise reduction measures.

[0006] The described BIM-based construction method for venue building acoustics is characterized in that: Step 1 specifically includes: using BIM software such as revit, SketchUp, CAD, etc. to perform three-dimensional modeling on the venue building to be constructed, focusing on modeling the functional rooms (places, areas) with higher requirements for acoustics effects, and strictly modeling according to the dimensions, materials, etc. required by the design drawings, including all designed decorations, pipelines, ceilings, etc., which can be the integration of models after multi-disciplinary BIM modeling; the details should also include defining various parameters that may affect the sound quality effect of the sound, such as the surface roughness, porosity, smoothness, etc. of the building; and the practices of various sound insulation and noise reduction measures, such as double-layer sandwich partition walls and floating soundproof floors; the BIM model integrates the structural data, building data (including decoration), material data, and space layout data of the building venue.

[0007] The described BIM-based construction method for venue building acoustics is characterized in that: Step 3 specifically includes: using specific and specially made audio frequencies to simulate and test the quality of the built model itself. After the specially made audio frequency sound is emitted, sound waves will be simulated in the internal space of the model and propagated through reflection, rebound, diffraction, divergence, etc. to find the abnormal sound leakage points (sound wave leakage areas) in the model, which may be judged that the model structure is not closed; the BIM software uses the acoustic characteristic that the sound wave propagates at different speeds in different media to judge whether the materials set in the built model are normal or there are overlapping and crossing problems; using the acoustic characteristic that after the sound source stops emitting sound in the internal space of the model, the sound continues to exist and rebound, that is, the reverberation effect, to judge whether the model can meet the requirements of the acoustic effect in the design, and modify and correct the BIM model through the discovered problems to make it more perfect and accurate.

[0008] The described BIM-based construction method for venue architectural acoustics is characterized in that: Step Seven specifically includes: setting a specific sound source emitting device at a relatively independent functional room in the venue at the construction site, at the podium part of the lecture hall, at the stage part of the theater, and at the positions where sound systems are to be installed; setting sound receiving and sensing devices at the auditorium seats, stands, and conference hall seats, and generating a spatial color cloud map through acoustic simulation software to reflect the actual sound quality effect of the spatial area. Comparing this sound visualization effect with the previously formed BIM model with architectural acoustic quality simulation effect to quickly determine the weak parts and defective points of the sound quality in the spatial area for construction technicians to analyze the reasons and make rectifications; the number and positions of sound sources used for the sound environment sound quality effect test vary according to the different functions of the venue. For example, in different functional scenarios such as conference halls, gymnasiums, and concerts, the tested sound sources and positions are all different.

[0009] The beneficial effects of the present invention are as follows: As can be seen from the above technical solutions, the present application provides a BIM-based construction method for venue architectural acoustics. During the venue construction stage, by monitoring the architectural acoustic effects in real time, we can promptly discover existing problems and immediately make rectifications. This process not only helps us correct errors in a timely manner but also enables us to more accurately locate the problem areas by comparing the design with the actual effects. In this way, we can ensure that the architectural acoustic quality of the venue is significantly improved, thereby meeting the high-quality and high-experience usage requirements of people for different functions of the venue. Brief Description of the Drawings

[0010] The following further elaborates on the present invention in conjunction with the drawings and embodiments: Figure 1 It is a schematic flow chart of the present application. Detailed Embodiments

[0011] The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope claimed by the present application. As Figure 1 shown: A BIM-based construction method for venue architectural acoustics includes the following steps: Step One: BIM modeling; Step Two: Using acoustic simulation and testing software; Step Three: Detecting and correcting the model; Step Four: Forming a model that meets the requirements; Step 5: Establish a three-dimensional coordinate system in the BIM model space; Step 6: Arrange the sound source transmitting and receiving devices on site; Step 7: Test the sound source in different locations and scenarios; Step 8: Venue construction and equipment installation.

[0012] Specifically, use BIM software such as revit, SketchUp, and CAD to model the venue building to be constructed in three dimensions, focusing on the modeling of functional rooms (places, areas) with high requirements for acoustic effects, and strictly modeling according to the dimensions and materials required by the design drawings, including all designed decorations, pipes, ceilings, etc., which can be multi-professional BIM modeling and then fusion models. The details should also include the definition of the surface roughness, porosity, smoothness and other parameters that may affect the sound quality of the building; as well as various sound insulation and noise reduction measures, such as double-layer sandwich partitions, floating silent floors, etc. The BIM model integrates the structural data, construction data (including decoration), material data, and spatial layout data of the building venue.

[0013] Use acoustic simulation and testing software, such as Odeon, to import the completed 3D model of the building.

[0014] Use specific, specially made audio frequencies to simulate and test the quality of the built model itself. After the specially made audio frequency sound is emitted, it will simulate sound waves in the internal space of the model, and propagate through reflection, rebound, diffraction, divergence, etc., to find out the abnormal sound leakage of the model (sound wave leakage area), which may be judged as the model structure is not closed (closed); BIM software uses the acoustic characteristics of different propagation speeds of sound waves in different media to determine whether the material of the built model is set normally or has overlapping and crossing problems; use the acoustic characteristics of the reverberation effect that the sound source continues to exist and rebound after stopping the sound source in the internal space of the model to determine whether the model can meet the requirements of the acoustic effect in the design. In summary, modify and correct the BIM model through the problems found to make it more complete and accurate.

[0015] The basis for modifying the above-mentioned BIM three-dimensional model is the various parameters and standard requirements required by the design drawings, as well as the requirements put forward by the construction unit Party A.

[0016] The revised BIM model, which serves as a digital model of the venue's architectural acoustic sound quality effects, serves as a reference for the construction and acceptance of auxiliary drawings.

[0017] Establish X\Y\Z three-dimensional coordinate system in BIM model space.

[0018] A specific sound source emitting device is set in a room with a relatively independent function (an independent enclosed area) of the venue at the construction site, and at specific positions (such as the podium position in a lecture hall, the stage position in a theater, the position where sound equipment is to be installed, etc.). Sound receiving and sensing devices are set at specific positions (such as the auditorium seats, stands, conference hall seats, etc.). The received sound is used to generate a spatial color cloud map (marking the quality of sound quality by the depth of color) through acoustic simulation software (such as Odeon software) to reflect the actual sound quality effect of the spatial area. The visualized sound effect is compared with the BIM model with the architectural acoustic sound quality simulation effect formed above to quickly determine the weak parts and defective points of the sound quality in the spatial area, so as to provide construction technicians with the analysis of the reasons for rectification.

[0019] The number and positions of sound sources used for testing the sound environment sound quality effect vary according to the different functions of the venue. For example, in different functional scenarios such as a conference hall, a stadium, a concert, etc., the tested sound sources and positions are all different.

[0020] Since the design time of the venue is generally completed in a relatively short time compared to the construction, during the architectural acoustic design of the venue, the surrounding environment of the venue may not be comprehensively investigated, or new noise interference sources may be added around the venue. For example, new schools, vegetable markets, etc. are newly planned around the venue, which are inevitable sound interferences during the later use of the venue and will affect the use effect of the venue. Simulate the noise at the relative planned orientation of the venue, set sound receiving and sensing devices in the venue, and use the above method for analysis after receiving the sound to simulate and test the influence degree of the noise on the architectural acoustic effect of the venue after the external planned facilities are built, find out the weak points, and feedback to the design for improvement and additional noise reduction measures.

[0021] The above are only the embodiments provided by this application and are not used to limit this application. Although this application has been described in detail with reference to the embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A venue building acoustics construction method based on BIM, characterized in that It includes the following steps: Step 1: BIM modeling; Step 2: Use acoustic simulation and testing software; Step 3: Check and correct the model; Step 4: Form a model that meets the requirements; Step 5: Establish a three-dimensional coordinate system in the BIM model space; Step 6: Arrange the sound source transmitting and receiving devices on site; Step 7: Test the sound source in different locations and scenarios; Step 8: Venue construction and equipment installation.

2. A venue architectural acoustics construction method based on BIM according to claim 1, characterized in that: Simulate noise at the relative planned location of the venue, set up sound receiving and sensing devices in the venue, and use the above method to analyze the sound after receiving it. Simulate and test the impact of noise from external planned facilities on the architectural acoustics of the venue after completion, identify weak points, and provide feedback to improve the design and add noise reduction measures.

3. The BIM-based venue architectural acoustics construction method according to claim 1, characterized in that: Step one specifically includes: using BIM software such as revit, SketchUp, CAD, etc. to carry out three-dimensional modeling of the venue building to be constructed, focusing on the modeling of functional rooms (places, areas) with high requirements for acoustic effects, and strictly modeling according to the dimensions and materials required by the design drawings, including all designed decoration, pipelines, ceilings, etc., which can be multi-professional BIM modeling and then fusion models; the details should also include definitions of the building's surface roughness, porosity, smoothness and other parameters that may affect the sound quality; as well as various sound insulation and noise reduction measures, such as double-layer sandwich partitions and floating silent floors; the BIM model integrates the structural data, construction data (including decoration), material data, and spatial layout data of the building venue.

4. The BIM-based venue architectural acoustics construction method according to claim 1 is characterized by: Step three specifically includes: using specific, specially made audio frequencies to simulate and test the quality of the built model itself. After the specially made audio frequency sound is emitted, it will simulate sound waves in the internal space of the model, and propagate through reflection, rebound, diffraction, divergence, etc., to find out the abnormal sound leakage of the model (sound wave leakage area), which may be judged as the model structure is not closed (closed); BIM software uses the acoustic characteristics of different propagation speeds of sound waves in different media to determine whether the material of the built model is set normally or has overlapping and crossing problems; after the sound source stops making sound in the internal space of the model, the sound continues to exist and rebound, that is, the acoustic characteristics of the reverberation effect, to determine whether the model can meet the requirements of the acoustic effect in the design, and modify and correct the BIM model through the problems found to make it more complete and accurate.

5. The BIM-based venue architectural acoustics construction method according to claim 1, characterized in that: Step seven specifically includes: setting up specific sound source emitting devices in a relatively independent room of the construction site, at the podium of the lecture hall, the stage of the theater, and the location where the audio system is to be installed; setting up sound receiving sensing devices in the auditorium, stands, and seats in the conference hall, and generating a spatial color cloud map of the received sound through acoustic simulation software to reflect the actual sound quality effect of the spatial area, and comparing this sound visualization effect with the aforementioned BIM model with architectural acoustic sound quality simulation effect to quickly determine the weak sound quality parts and defective points in the spatial area, so that construction technicians can analyze the causes and make rectifications; the number and location of sound sources used in the sound environment sound quality effect test vary according to the different functions of the venue. For example, when used as a conference hall, gymnasium, concert and other different functional scenes, the sound sources and locations of the tests are different.

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