A fine construction method for acoustic renovation of an ellipsoidal building structure

Abstract

The present application belongs to the technical field of building engineering, and particularly relates to a fine construction method for acoustic reconstruction of an ellipsoidal building structure, comprising the following steps: step 1: parameterization of an existing structure; step 2: blocking of a built model contour and sound-absorbing rock wool; step 3: extension of edge coordinates of each block of the model to determine edge coordinates of a positioning support of an outer sleeve-shaped steel; step 4: customization of the positioning support of the outer sleeve-shaped steel; step 5: positioning of the sound-absorbing rock wool on the ground; and step 6: installation of the sound-absorbing rock wool. The present application has the beneficial effect of avoiding repeated adjustment and rework of the sound-absorbing rock wool during paving, ensuring accurate positioning and high-precision construction.

Description

Technical Field

[0001] This invention belongs to the field of building engineering technology, and in particular relates to a refined construction method for acoustic modification of ellipsoidal building structures. Background Technology

[0002] As people's requirements for building structures and functions become increasingly diverse, more and more acoustic renovation projects are emerging for spherical structures (such as cinemas and exhibition halls). These projects often require re-laying sound-absorbing rock wool on the surface of the existing structure. However, sound-absorbing rock wool is a soft and easily deformable material. If its shape is fixed during high-altitude transportation, it is prone to warping, bulging, and overlapping on uneven surfaces, resulting in an uneven surface and affecting the overall appearance and usability. This is especially true for spherical structures, which places higher demands on the segmented and precise positioning of the rock wool during installation.

[0003] Chinese invention patent CN106930461A discloses a construction method for an octagonal column cap petal shape. This method involves customizing an external light steel keel to match the designed shape on an existing structure, then fixing plasterboard to the light steel keel, and finally fixing sound-absorbing cotton onto the plasterboard. While this method solves the problem of irregular shell shapes not being able to take root, it still does not offer a reasonable solution for controlling the forming quality of the externally applied sound-absorbing cotton.

[0004] Therefore, this invention proposes a precise construction method for acoustic modification of ellipsoidal building structures. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, this invention provides a refined construction method for acoustic modification of ellipsoidal building structures, which avoids repeated adjustments and rework during the installation of sound-absorbing rock wool, ensuring precise positioning and high-precision construction.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A refined construction method for acoustic retrofitting of ellipsoidal building structures includes the following steps:

[0008] Step 1: Parameterization of the existing structure

[0009] By measuring the existing ellipsoidal building structure at fixed points or by archiving drawings, an outer contour model of the existing ellipsoidal building structure is established, and the coordinates of each point of the outer contour model of the existing structure are obtained.

[0010] Step 2: Divide the existing model outline and sound-absorbing rock wool into blocks.

[0011] Based on the dimensions of the sound-absorbing rock wool, the surface formed by the outer contour of the existing model is divided into blocks, requiring that the surface area of ​​each block is equal after division, and the edge coordinates of each block of the model contour are obtained.

[0012] When dividing the sound-absorbing rock wool, it is required that each block can match and fit with each block of the existing model. At the same time, since the sound-absorbing rock wool is relatively thin, the edge coordinates of each block of the model can be regarded as the edge coordinates of each point of the sound-absorbing rock wool block.

[0013] Step 3: Expand the edge coordinates of each block of the model to determine the edge coordinates of the outer steel positioning support.

[0014] The edge coordinates of each segment of the existing outer contour line are extended outward along the major and minor axes of the ellipsoidal structure by the thickness of an outer steel positioning support. The extended contour line is used as the outer contour line of the outer steel positioning support, thus obtaining the edge coordinates of the outer steel positioning support.

[0015] Step 4: Customize the outer steel positioning support

[0016] Customize the outer steel positioning support according to the edge coordinates of the outer steel positioning support, and fix the hook and loop fastener on the outer steel positioning support;

[0017] Step 5: Positioning the sound-absorbing rock wool on the ground

[0018] The sound-absorbing rock wool blocks are connected to the corresponding outer steel positioning supports on the ground to match the configuration of the sound-absorbing rock wool with the parameter model.

[0019] Step 6: Installation of sound-absorbing rock wool

[0020] After adjusting the position of the sound-absorbing rock wool on the ground, install each block of sound-absorbing rock wool into the designated position. During the installation process, the position of each block of sound-absorbing rock wool is kept unchanged by the positioning support of the outer steel.

[0021] Preferably, in step 6, the sound-absorbing rock wool can be installed using a high-altitude operation method. Construction workers carry the sound-absorbing rock wool, which has been positioned and adjusted from the ground, and install it in the designated position using a climbing vehicle. They then tear off the Velcro between the installation position and the outer steel positioning support and remove the outer steel positioning support.

[0022] Preferably, in step 6, an intelligent lifting platform that avoids personnel working at heights is used to automatically install the sound-absorbing rock wool. The intelligent lifting platform includes: a mobile trolley with horizontal moving wheels, a folding lifting arm installed on the mobile trolley, a movable ball joint support set at the top of the folding lifting arm, and an installation suction cup installed on the movable ball joint support. The installation suction cup adsorbs the outer steel positioning support. By rotating the movable joint support, the installation suction cup and the outer steel positioning support are tilted to a position that matches the outer contour of each block of the model. Each block of sound-absorbing rock wool is installed in the designated position. The fastener between the installation position and the outer steel positioning support is torn off, and the outer steel positioning support is removed.

[0023] Preferably, in step 1, the outer contour model of the existing structure is established using Revit software to achieve parameterization of each point on the surface of the ellipsoidal structure.

[0024] Preferably, in step 2, the surface area of ​​each block of sound-absorbing rock wool is the same as the surface area of ​​the block corresponding to the model outline.

[0025] Preferably, in step 3, the thickness of the outer steel positioning support is 5-10cm.

[0026] Preferably, in step 3, the structure of the outer steel positioning support includes: an inner positioning frame, an outer positioning frame corresponding to the inner positioning frame, a supporting keel sandwiched between the inner positioning frame and the outer positioning frame, and hook and loop fasteners. The supporting keel is vertically fixedly connected to the inner positioning frame and the outer positioning frame, and the inner positioning frame, the outer positioning frame, and the supporting keel form a stable frame structure. Hook and loop fasteners bonded to the sound-absorbing rock wool are arranged at equal intervals on the inner positioning frame.

[0027] Preferably, the supporting keel is located between corresponding points of the positioning inner frame and the positioning outer frame, and is set at equal intervals in both the longitudinal and transverse directions along the positioning inner frame and the positioning outer frame.

[0028] Preferably, the hook and loop fastener is located at the top of the supporting keel on the inner frame of the positioning frame.

[0029] Beneficial effects

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] 1. By using high-precision parametric modeling of existing ellipsoidal structures, precise segmentation of the structural outline can be achieved, avoiding repeated adjustments and rework during the paving process, and ensuring accurate positioning and high-precision construction.

[0032] 2. Sound-absorbing rock wool is positioned on the ground, avoiding the difficulties of high-altitude positioning.

[0033] 3. By using a matching outer steel positioning support for the sound-absorbing rock wool, the problem of the sound-absorbing rock wool being easily buckled due to its insufficient rigidity during installation is overcome. This ensures that the sound-absorbing rock wool remains in a fixed displacement on the ground during the positioning and installation process, guaranteeing installation accuracy and ease of operation. Attached Figure Description

[0034] Figure 1 This is a flowchart illustrating the construction method of the present invention.

[0035] Figure 2 This is a schematic diagram of the ellipsoidal structure to be acoustically modified according to the present invention.

[0036] Figure 3 This is a schematic diagram illustrating the parameterized segmentation of the outline of an existing ellipsoidal structure model according to the present invention;

[0037] Figure 4 A schematic diagram illustrating the determination of the edge coordinates of the outer steel positioning support according to the present invention;

[0038] Figure 5 This is a schematic diagram of the outer steel positioning support of the present invention;

[0039] Figure 6 This is a schematic diagram of the sound-absorbing rock wool and the matching outer steel positioning support of the present invention;

[0040] Figure 7 This is a simplified schematic diagram illustrating the installation of sound-absorbing rock wool using a high-altitude personnel operation method according to the present invention.

[0041] Figure 8 This is a simplified schematic diagram illustrating the installation of sound-absorbing rock wool on the ground using an intelligent lifting platform, as per the present invention.

[0042] Among them: 1-ellipsoidal structure; 2-lower support column; 3-sound-absorbing rock wool; 4-outer steel positioning support; 4-1-positioning inner frame; 4-2-positioning outer frame; 4-3-support keel; 4-4-fastener; 4-5-outer contour line of outer steel positioning support; 4-6-erecting area of ​​outer steel positioning support; 4-7-outer contour line of model; 5-elevating vehicle; 6-intelligent lifting platform. Detailed Implementation

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0045] A schematic diagram of the existing ellipsoidal structure 1 of the present invention is shown below. Figure 2 As shown, the spherical structure to be installed is supported by the lower support column 2. The ellipsoidal structure 1 to be installed is relatively high, and the acoustic modification process requires the installation of sound-absorbing rock wool 3 on its entire surface. The flowchart of the refined construction method for acoustic modification of this ellipsoidal building structure provided by the present invention is shown below. Figure 1 As shown, the specific steps include the following:

[0046] Step 1: Parameterize the existing ellipsoidal structure 1.

[0047] By measuring the fixed-point defense line of the existing spherical structure or using existing archived drawings, the outer contour model of the existing ellipsoidal structure 1 is established using Revit software. This allows for the parameterization of each point on the surface of the spherical structure, resulting in the coordinates of each point on the outer contour model of the existing structure.

[0048] Step 2: Divide the existing model outline and sound-absorbing rock wool 3 into blocks.

[0049] Based on the dimensions of the sound-absorbing rock wool 3, the surface of the existing model outline is divided into blocks of equal area, as shown in the block diagram below. Figure 3 As shown, the edge coordinates of each block of the existing model outline are obtained. Since the thickness of the sound-absorbing rock wool 3 is relatively small, the edge coordinates of each block of the model can be considered as the edge coordinates of each point within the sound-absorbing rock wool 3 block. Each block of the sound-absorbing rock wool 3 can match and fit with each block of the existing model, and the surface areas corresponding to each block of both are the same. The blocks of the sound-absorbing rock wool 3 on the surface of the ellipsoidal structure 1 are shown below. Figure 3 As shown in the figure. In the model, each piece of sound-absorbing rock wool 3 is laid out and adjusted to obtain a more reasonable sound-absorbing rock wool 3 block, and the edge coordinates of each point of the sound-absorbing rock wool 3 block are obtained.

[0050] Step 3: Expand the edge coordinates of each block of the model and determine the edge coordinates of the outer steel positioning support 4.

[0051] In the established structural model, the edge coordinates of each point of the sound-absorbing rock wool block 3 (the edge coordinates of each block of the existing structural outline) are uniformly extended outward along the major and minor axes of the spherical structure by the thickness of an outer steel positioning support 4. The thickness of the outer steel positioning support 4 is generally 5-10cm. The extended outline is used as the outer outline 4-5 of the outer steel positioning support, i.e., the edge coordinates of the outer steel positioning support 4. The area between the model's outer outline 4-7 and the outer outline 4-5 of the outer steel positioning support is the outer steel positioning support erection area 4-6. The outer steel positioning support 4 is erected in this area. See the appendix for details. Figure 4 .

[0052] The structure of the outer steel positioning support 4 is as follows: Figure 5 As shown, the system includes: an inner positioning frame 4-1, an outer positioning frame 4-2 corresponding to the inner positioning frame 4-1, a supporting keel 4-3, and hook and loop fasteners 4-4. The outer contour line 4-7 and the extended contour line of the model serve as positioning points for the inner positioning frame 4-1 and the outer positioning frame 4-2, respectively. The supporting keel 4-3 is positioned between corresponding points on the inner positioning frame 4-1 and the outer positioning frame 4-2, and is vertically and fixedly connected to both the inner positioning frame 4-1 and the outer positioning frame 4-2. The inner positioning frame 4-1, the outer positioning frame 4-2, and the supporting keel 4-3 form a stable frame structure. Preferably, the supporting keel 4-3 is evenly spaced along the longitudinal and transverse directions of the inner positioning frame 4-1 and the outer positioning frame 4-2. Hook and loop fasteners 4-4 are evenly spaced along the centerline of the inner positioning frame 4-1 and at the top of the supporting keel 4-3 to connect the outer steel positioning support 4 to the sound-absorbing rock wool 3.

[0053] Step 4: Customize the outer steel positioning support 4

[0054] Based on the edge coordinates of the outer steel positioning support, customize the outer steel positioning support 4, and fix the hook and loop fastener 4-4 on the outer steel positioning support 4.

[0055] Step 5: Positioning of sound-absorbing rock wool 3 on the ground

[0056] like Figure 5 As shown, the sound-absorbing rock wool 3 is divided into sections and connected to the corresponding outer steel positioning support 4 on the ground by fasteners 4-4, so that the configuration of the sound-absorbing rock wool 3 matches the parameter model;

[0057] Step 6: Installation of sound-absorbing rock wool 3

[0058] After adjusting the position of the sound-absorbing rock wool 3 on the ground, install each block of the sound-absorbing rock wool 3 into the designated position. During the installation process, the position of each block of the sound-absorbing rock wool 3 is kept unchanged by the outer steel positioning support 4.

[0059] The installation of sound-absorbing rock wool 3 can be carried out by personnel working at height or by using an intelligent lifting platform. Details are as follows:

[0060] When installing sound-absorbing rock wool 3 using the high-altitude operation method, such as Figure 6 As shown, the construction workers carried the sound-absorbing rock wool 3, which had been positioned and adjusted, from the ground and installed it in the designated position using a climbing vehicle 5. They then tore off the Velcro 4-4 between the installation position and the outer steel positioning support 4, removed the outer steel positioning support 4, and brought it back to the ground.

[0061] The installation of sound-absorbing rock wool 3 utilizes an intelligent lifting platform that avoids high-altitude work for personnel. For example... Figure 7 As shown, the intelligent lifting platform 6 includes: a mobile trolley with horizontal moving wheels, a folding lifting arm mounted on the mobile trolley, a movable ball joint support set at the top of the folding lifting arm, and a mounting suction cup mounted on the movable ball joint support. The movable ball joint support can rotate in all directions, causing the mounting suction cup and the outer steel positioning support 4 to tilt to a position matching the outer contour of each block of the model. When the mounting suction cup is powered on, it generates a magnetic force that can attract the outer steel positioning support 4. The installation steps are as follows: remotely lower the folding lifting arm and move the mobile trolley to the designated position. Then, connect the outer steel positioning support 4 of the positioning sound-absorbing rock wool 3 to the mounting suction cup, raise the folding lifting arm to the designated height, and adjust the sound-absorbing rock wool 3 to the corresponding installation angle through the remote control of the movable ball joint support; tear off the hook-and-loop fastener 4-4 between the installation position and the outer steel positioning support 4, and remove the outer steel positioning support 4.

[0062] The foregoing detailed examples of the present invention are merely preferred embodiments and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A refined construction method for acoustic modification of ellipsoidal building structures, characterized in that, Includes the following steps: Step 1: Parameterization of the existing structure By measuring the existing ellipsoidal building structure at fixed points or by archiving drawings, an outer contour model of the existing ellipsoidal building structure is established, and the coordinates of each point of the outer contour model of the existing structure are obtained. Step 2: Divide the existing model outline and sound-absorbing rock wool into blocks. Based on the dimensions of the sound-absorbing rock wool, the surface formed by the outer contour of the existing model is divided into blocks, requiring that the surface area of ​​each block is equal after division, and the edge coordinates of each block of the model contour are obtained. When dividing the sound-absorbing rock wool, each block is required to match and fit with each block of the existing model. At the same time, since the sound-absorbing rock wool is thin, the edge coordinates of each block of the model are regarded as the edge coordinates of each point of the sound-absorbing rock wool block. Step 3: Expand the edge coordinates of each block of the model to determine the edge coordinates of the outer steel positioning support. The edge coordinates of each segment of the existing outer contour line are extended outward along the major and minor axes of the ellipsoidal structure by the thickness of an outer steel positioning support. The extended contour line is used as the outer contour line of the outer steel positioning support, thus obtaining the edge coordinates of the outer steel positioning support. Step 4: Customize the outer steel positioning support Customize the outer steel positioning support according to the edge coordinates of the outer steel positioning support, and fix the hook and loop fastener on the outer steel positioning support; Step 5: Positioning the sound-absorbing rock wool on the ground The sound-absorbing rock wool blocks are connected to the corresponding outer steel positioning supports on the ground to match the configuration of the sound-absorbing rock wool with the parameter model. Step 6: Installation of sound-absorbing rock wool After adjusting the position of the sound-absorbing rock wool on the ground, install each block of the sound-absorbing rock wool into the designated position. During the installation process, the position of each block of the sound-absorbing rock wool is kept unchanged by the positioning support of the outer steel. The structure of the outer steel positioning support includes: an inner positioning frame, an outer positioning frame corresponding to the inner positioning frame, a supporting keel sandwiched between the inner positioning frame and the outer positioning frame, and hook and loop fasteners. The supporting keel is vertically fixed to the inner positioning frame and the outer positioning frame respectively, and the inner positioning frame, the outer positioning frame, and the supporting keel form a stable frame structure. Hook and loop fasteners bonded to sound-absorbing rock wool are arranged at equal intervals on the inner positioning frame.

2. The refined construction method for acoustic modification of ellipsoidal building structures according to claim 1, characterized in that, In step 1, the outer contour model of the existing structure is established using Revit software to achieve parameterization of each point on the surface of the ellipsoidal structure.

3. The refined construction method for acoustic modification of ellipsoidal building structures according to claim 1, characterized in that, In step 2, the surface area of ​​each block of sound-absorbing rock wool is the same as the surface area of ​​the block corresponding to the model outline.

4. The refined construction method for acoustic modification of ellipsoidal building structures according to claim 1, characterized in that, In step 3, the thickness of the outer steel positioning support is 5-10cm.

5. A refined construction method for acoustic modification of ellipsoidal building structures according to claim 1, characterized in that, The supporting keel is located between corresponding points of the positioning inner frame and the positioning outer frame, and is set at equal intervals in both the longitudinal and transverse directions along the positioning inner frame and the positioning outer frame.

6. A refined construction method for acoustic modification of ellipsoidal building structures according to claim 1, characterized in that, The hook and loop fasteners are set at the top of the supporting keel on the inner frame of the positioning frame.

7. A refined construction method for acoustic modification of ellipsoidal building structures according to claim 1, characterized in that, In step 6, the sound-absorbing rock wool is installed using a high-altitude operation method. Construction workers carry the sound-absorbing rock wool, which has been positioned and adjusted from the ground, and install it in the designated position using a climbing vehicle. They then tear off the Velcro between the installation position and the outer steel positioning support and remove the outer steel positioning support.

8. A refined construction method for acoustic modification of ellipsoidal building structures according to claim 1, characterized in that, In step 6, an intelligent lifting platform that avoids high-altitude operations is used to automatically install the sound-absorbing rock wool. The intelligent lifting platform includes: a mobile trolley with horizontal moving wheels, a folding lifting arm installed on the mobile trolley, a movable ball joint support set at the top of the folding lifting arm, and an installation suction cup installed on the movable ball joint support. The installation suction cup adsorbs the outer steel positioning support. By rotating the movable joint support, the installation suction cup and the outer steel positioning support are tilted to a position that matches the outer contour of each block of the model. Each block of sound-absorbing rock wool is installed in the designated position. The fastener between the installation position and the outer steel positioning support is torn off, and the outer steel positioning support is removed.

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