Fabricated building prefabricated wallboard with anti-seismic energy dissipation structure

Abstract

The utility model provides an assembly type building prefabricated wallboard with an anti-seismic energy dissipation structure, and relates to the technical field of building prefabricated wallboards, the assembly type building prefabricated wallboard comprises a front wallboard main body, the rear end face of the front wallboard main body and the front end face of a rear wallboard main body are fixedly installed and connected through an adhesive, and at the moment, a rear containing groove and a front containing groove jointly form a sound absorption energy dissipation cavity; sound waves enter the sound absorption cavities with the interior being of a spherical structure, the incident sound waves are subjected to the total reflection effect through the inner circumferential arc faces of the spherical cavities, and sound energy is converted into heat energy to be consumed through multiple times of reflection attenuation of the sound waves in the cavities in combination with the friction of the wall faces of the cavities and the viscous effect of air media; a continuous acoustic conduction network is formed, after sound waves are reflected for multiple times in a single spherical cavity, part of energy enters the adjacent cavities through the sound conduction reflection holes, the cross-cavity linkage reflection energy consumption process is triggered, and the problem that the sound wave treatment capacity of a traditional prefabricated wallboard is limited, and the comprehensive requirement of a building cannot be met is solved.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building wall panel technology, and in particular to a prefabricated building wall panel with an earthquake-resistant and energy-dissipating structure. Background Technology

[0002] In the construction field, with the acceleration of urbanization and the continuous development of construction technology, prefabricated buildings have been widely used due to their advantages such as high efficiency, environmental protection and controllable quality. However, in areas where natural disasters such as earthquakes occur frequently, the seismic performance of prefabricated buildings has become a key factor affecting their safety and reliability. Traditional prefabricated wall panels for prefabricated buildings have some shortcomings in seismic design and are difficult to meet increasingly stringent seismic requirements.

[0003] On the one hand, the structural design of traditional precast wall panels has defects in balancing weight reduction and seismic energy dissipation. In order to ensure structural strength, most wall panels have insufficient material distribution, resulting in a large overall weight. Under seismic action, they will generate a large inertial load, increasing the safety risk of the structure and making it difficult to achieve the goal of efficient seismic energy dissipation.

[0004] In addition, in terms of acoustic performance, traditional precast wall panels have limited ability to process sound waves. When sound waves penetrate the wall panels, there is a lack of effective sound absorption and energy dissipation structures. The sound waves cannot be attenuated by multiple reflections through a reasonable acoustic conduction network. The efficiency of converting sound energy into heat energy is low, and it cannot well meet the comprehensive needs of buildings for sound insulation, noise reduction and energy consumption. Utility Model Content

[0005] This utility model relates to a prefabricated wall panel for assembled buildings with an earthquake-resistant and energy-dissipating structure, which solves the problems of traditional prefabricated wall panels, such as the difficulty in balancing weight reduction and earthquake resistance in structural design, and the limited ability to handle sound waves in acoustic performance, thus failing to meet the comprehensive needs of buildings.

[0006] This utility model provides a prefabricated wall panel for prefabricated buildings with an earthquake-resistant and energy-dissipating structure, specifically including: a front wall panel body, and a rear wall panel body with the same structural dimensions as the front wall panel body; a front storage groove is opened on the rear end face of the front wall panel body, and a rear storage groove is opened on the front end face of the rear wall panel body, the structural dimensions of the rear storage groove are the same as the structural dimensions of the front storage groove; the rear end face of the front wall panel body and the front end face of the rear wall panel body are fixedly connected by adhesive, at which time the rear storage groove and the front storage groove together form a sound-absorbing and energy-dissipating cavity; a sound-absorbing mating block is installed in the sound-absorbing and energy-dissipating cavity, the structural dimensions of the sound-absorbing mating block are matched with the structural dimensions of the sound-absorbing and energy-dissipating cavity, and the sound-absorbing mating block is made of polyester fiber sound-absorbing board.

[0007] Furthermore, the sound-absorbing block has several sound-absorbing cavities evenly distributed inside, and the sound-absorbing cavities have a spherical structure; the front end face of the sound-absorbing block has a sound guide hole that penetrates the rear end face of each sound-absorbing cavity relative to the axis of each sound-absorbing cavity, and the sound guide hole passes through the sound-absorbing cavity.

[0008] Furthermore, the diameter of the sound guide hole is smaller than the diameter of the sound absorption cavity; each pair of adjacent sound absorption cavities is connected by a sound guide reflection hole, the diameter of which is the same as the diameter of the sound guide hole.

[0009] Furthermore, a limiting block a with a right-angled trapezoidal block structure is fixedly installed on the left end face of the front wall panel body; a limiting block b with a right-angled trapezoidal block structure is fixedly installed on the left end face of the rear wall panel body; the limiting block a and the limiting block b together form an assembly block, which has an isosceles trapezoidal block structure.

[0010] Furthermore, a limiting notch a, which is a right-angled trapezoidal groove structure, is jointly formed between the right end face and the rear end face of the front wall panel body, and the limiting notch a penetrates through the top and bottom end faces of the front wall panel body; a limiting notch b, which is a right-angled trapezoidal groove structure, is jointly formed between the right end face and the front end face of the rear wall panel body, and the limiting notch b penetrates through the top and bottom end faces of the rear wall panel body. The limiting notch a and the limiting notch b together form an assembly slot, which is an isosceles trapezoidal groove structure.

[0011] This utility model provides a prefabricated wall panel for assembled buildings with a seismic-resistant and energy-dissipating structure, which has the following beneficial effects:

[0012] The present invention has a front storage groove on the rear end face of the front wall panel and a rear storage groove on the front end face of the rear wall panel. When the front wall panel and the rear wall panel are fixedly connected by adhesive, the rear storage groove and the front storage groove together form a sound-absorbing and energy-dissipating cavity. This cavity structure significantly reduces the overall weight of the wall panel by optimizing the material distribution, thereby reducing the inertial load under seismic action, achieving the basic design goal of seismic energy dissipation, and improving the safety of the structure under seismic conditions.

[0013] In this invention, limiting insert a and limiting insert b form an isosceles trapezoidal assembly insert, and limiting notch a and limiting notch b form an isosceles trapezoidal assembly slot. Adjacent wall panels are installed by limiting insertion and connection between the assembly insert and the slot. This structure utilizes the mechanical self-locking properties of the trapezoidal geometry to enhance the connection stiffness and pull-out resistance between wall panels and improve the seismic synergy of the overall assembly structure.

[0014] When sound waves penetrate the main body of the front or rear wall panel, they directly enter the sound-absorbing energy-dissipating cavity and come into contact with the sound-absorbing mating block. The sound-guiding holes evenly distributed on the surface of the sound-absorbing mating block form the initial conduction channel. The sound waves enter the internal spherical sound-absorbing cavity, and the inner circumferential arc surface of the spherical cavity causes the incident sound waves to undergo total reflection. Through multiple reflections and attenuation of the sound waves in the cavity, combined with the friction of the cavity wall and the viscosity of the air medium, the sound energy is converted into heat energy and consumed. Since adjacent sound-absorbing cavities are connected through sound-guiding reflection holes, they form a continuous acoustic conduction network. After the sound waves complete multiple reflections in a single spherical cavity, some of the energy enters the adjacent cavity through the sound-guiding reflection holes, triggering a cross-cavity chain reflection energy-dissipating process, extending the sound wave propagation path, and further enhancing the energy dissipation efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 This diagram shows an isometric view of the present invention in its closed state.

[0019] Figure 2 This diagram shows a front-end isometric structure of the present invention in its disassembled state;

[0020] Figure 3 This diagram shows a schematic diagram of the rear isometric structure of the present invention in its disassembled state;

[0021] Figure 4 A cross-sectional structural schematic diagram of the present invention is shown;

[0022] Figure 5 This utility model illustrates Figure 4 A magnified view of the structure at point A in the middle;

[0023] Figure 6 This utility model illustrates Figure 4 Schematic diagram of the cross-sectional structure of the middle BB;

[0024] List of reference numerals

[0025] 1. Front wall panel main body; 101. Limiting insert a; 102. Limiting notch a; 103. Front storage groove; 2. Rear wall panel main body; 201. Limiting insert b; 202. Limiting notch b; 203. Rear storage groove; 3. Sound-absorbing mating block; 301. Sound guide hole; 302. Sound absorption cavity; 303. Sound guide reflection hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Example: Please refer to Figures 1 to 6 :

[0028] This utility model proposes a prefabricated wall panel for prefabricated buildings with an earthquake-resistant and energy-dissipating structure, comprising: a front wall panel body 1, and a rear wall panel body 2 with the same structural dimensions as the front wall panel body 1; a front storage groove 103 is formed on the rear end face of the front wall panel body 1, and a rear storage groove 203 is formed on the front end face of the rear wall panel body 2, the structural dimensions of the rear storage groove 203 being the same as the structural dimensions of the front storage groove 103; the rear end face of the front wall panel body 1 and the front end face of the rear wall panel body 2 are fixedly connected by an adhesive, at which point the rear storage groove 203 and the front storage groove 103 together form a sound-absorbing and energy-dissipating cavity; a sound-absorbing device is installed inside the sound-absorbing and energy-dissipating cavity. The sound-absorbing mating block 3 has structural dimensions that match the structural dimensions of the sound-absorbing energy-dissipating cavity. The sound-absorbing mating block 3 is made of polyester fiber sound-absorbing board. Several sound-absorbing cavities 302 are evenly distributed inside the sound-absorbing mating block 3, and the sound-absorbing cavities 302 have a spherical structure. A sound guide hole 301 is opened on the front end face of the sound-absorbing mating block 3 relative to the axis of each sound-absorbing cavity 302, and the sound guide hole 301 passes through the sound-absorbing cavity 302. The diameter of the sound guide hole 301 is smaller than the diameter of the sound-absorbing cavity 302. Each pair of adjacent sound-absorbing cavities 302 is connected by a sound guide reflection hole 303, and the diameter of the sound guide reflection hole 303 is the same as the diameter of the sound guide hole 301.

[0029] In this embodiment, a limiting block a101 with a right-angled trapezoidal block structure is fixedly installed on the left end face of the front wall panel body 1; a limiting block b201 with a right-angled trapezoidal block structure is fixedly installed on the left end face of the rear wall panel body 2; the limiting block a101 and the limiting block b201 together form an assembly block, which has an isosceles trapezoidal block structure; a limiting notch a102 with a right-angled trapezoidal groove structure is opened between the right end face and the rear end face of the front wall panel body 1, and the limiting notch a102 penetrates the top and bottom end faces of the front wall panel body 1; a limiting notch b202 with a right-angled trapezoidal groove structure is opened between the right end face and the front end face of the rear wall panel body 2, and the limiting notch b202 penetrates the top and bottom end faces of the rear wall panel body 2; the limiting notch a102 and the limiting notch b202 together form an assembly slot, which has an isosceles trapezoidal groove structure.

[0030] The working principle of this embodiment:

[0031] The rear end face of the front wall panel 1 has a front storage groove 103, and the front end face of the rear wall panel 2 has a rear storage groove 203. The rear end face of the front wall panel 1 and the front end face of the rear wall panel 2 are fixedly connected by adhesive. At this time, the rear storage groove 203 and the front storage groove 103 together form a sound absorption and energy dissipation cavity. This cavity structure significantly reduces the overall self-weight of the wall panel by optimizing the material distribution, thereby reducing the inertial force load under earthquake action and achieving the basic design goal of seismic energy dissipation.

[0032] Since the limiting plug a101 and the limiting plug b201 together form an assembly plug, the assembly plug has an isosceles trapezoidal block structure, and the limiting notch a102 and the limiting notch b202 together form an assembly slot, the assembly slot has an isosceles trapezoidal slot structure, when assembling and installing adjacent wall panels, the assembly and installation operation of adjacent wall panels can be achieved through the limiting plug-in cooperation of the assembly plug and the assembly slot.

[0033] When sound waves penetrate from the front wall panel 1 or the rear wall panel 2, they directly enter the sound-absorbing energy-dissipating cavity and come into contact with the sound-absorbing mating block 3 inside the cavity. The sound-absorbing mating block 3 is made of polyester fiber sound-absorbing board material, and the sound guide holes 301 evenly distributed on its surface form the primary sound transmission channel. The sound waves enter the internal sound-absorbing cavity 302 through the sound guide holes 301. This cavity adopts a spherical structure and has unique acoustic reflection characteristics. The inner circumferential arc surface of the spherical sound-absorbing cavity 302 can cause the incident sound waves to undergo total internal reflection. The sound waves are reflected and attenuated multiple times along the arc surface inside the cavity. Through the friction between the sound waves and the cavity wall and the viscosity of the air medium, the sound energy is converted into heat energy and consumed. In addition, each pair of adjacent sound-absorbing cavities 302 is connected by a sound guide reflection hole. The 303 connection forms a continuous acoustic transmission network. After the sound wave undergoes multiple reflections within a single spherical cavity, some energy will enter adjacent cavities through the sound-conducting reflection hole 303, triggering a chain reaction of energy dissipation across cavities. This further extends the propagation path of the sound wave and enhances energy dissipation efficiency. Since the sound-absorbing block 3 is made of polyester fiber sound-absorbing board material, it has porous sound absorption characteristics. It can achieve viscous loss of sound waves through the pore structure between fibers, forming a synergistic effect with the reflection energy dissipation of the spherical cavity. This allows the sound-absorbing energy dissipation cavity to achieve both geometric reflection attenuation of sound waves through physical structure and physical absorption of sound energy through material properties. This achieves efficient sound absorption and energy dissipation over a wide frequency range, minimizing noise transmission.

Claims

1. A prefabricated wall panel for assembled buildings with a seismic-resistant and energy-dissipating structure, characterized in that, include: A front wall panel body (1) is provided on the rear side of the front wall panel body (1), and a rear wall panel body (2) with the same structural dimensions is provided thereon; a front storage groove (103) is provided on the rear end face of the front wall panel body (1), and a rear storage groove (203) is provided on the front end face of the rear wall panel body (2), and the structural dimensions of the rear storage groove (203) are the same as those of the front storage groove (103); the rear end face of the front wall panel body (1) and the front end face of the rear wall panel body (2) are fixedly connected by adhesive, and the rear storage groove (203) and the front storage groove (103) together form a sound absorption and energy dissipation cavity; a sound absorption matching block (3) is installed in the sound absorption and energy dissipation cavity, and the structural dimensions of the sound absorption matching block (3) match the structural dimensions of the sound absorption and energy dissipation cavity, and the sound absorption matching block (3) is made of polyester fiber sound absorption board.

2. A prefabricated wall panel for prefabricated buildings with an earthquake-resistant and energy-dissipating structure according to claim 1, characterized in that, The sound-absorbing block (3) has several sound-absorbing cavities (302) evenly distributed inside, and the sound-absorbing cavities (302) have a spherical structure; the front end face of the sound-absorbing block (3) has a sound guide hole (301) that passes through the rear end face of each sound-absorbing cavity (302) relative to the axis of each sound-absorbing cavity (302), and the sound guide hole (301) passes through the sound-absorbing cavity (302).

3. A prefabricated wall panel for prefabricated buildings with an earthquake-resistant and energy-dissipating structure according to claim 2, characterized in that, The diameter of the sound guide hole (301) is smaller than the diameter of the sound absorption cavity (302); each pair of adjacent sound absorption cavities (302) are connected by a sound guide reflection hole (303), and the diameter of the sound guide reflection hole (303) is the same as the diameter of the sound guide hole (301).

4. A prefabricated wall panel for prefabricated buildings with an earthquake-resistant and energy-dissipating structure according to claim 3, characterized in that, A limiting block a (101) with a right-angled trapezoidal block structure is fixedly installed on the left end face of the front wall panel body (1); a limiting block b (201) with a right-angled trapezoidal block structure is fixedly installed on the left end face of the rear wall panel body (2); the limiting block a (101) and the limiting block b (201) together form an assembly block, which has an isosceles trapezoidal block structure.

5. A prefabricated wall panel for prefabricated buildings with an earthquake-resistant and energy-dissipating structure according to claim 4, characterized in that, The front wall panel body (1) has a right-angled trapezoidal groove structure between its right end face and rear end face, and the right-angled trapezoidal groove structure a (102) is provided between its right end face and rear end face. The right-angled trapezoidal groove structure b (202) is provided between its right end face and front end face, and the right-angled trapezoidal groove structure b (202) is provided between its right end face and front end face. The right-angled trapezoidal groove structure b (202) is provided between its right end face and rear end face. The right-angled trapezoidal groove structure a (102) and the right-angled trapezoidal groove structure b (202) are provided together to form an assembly slot. The assembly slot has an isosceles trapezoidal groove structure.

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