Fabricated hollow wall system and construction method

Abstract

The application discloses an assembled hollow wall system and a construction method, relates to the technical field of assembled buildings, and belongs to the technical field of assembled buildings. The hollow wall system comprises a prefabricated bottom beam, a first prefabricated hollow plate, a second prefabricated hollow plate and a damping mechanism. The construction method comprises the steps of installing the prefabricated bottom beam, installing the first prefabricated hollow plate and the second prefabricated hollow plate, pouring a main body structure and inserting a damping rod. The application improves the technology of constructing a wall body by using a hollow plate. The wall body constructed by using the hollow plate is integral, has high strength and strong anti-seismic capacity, and is suitable for wide range of popularization and use.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, specifically to a prefabricated hollow wall system and construction method. Background Technology

[0002] Walls play an important role in urban planning and city appearance construction. Current wall structures typically include the following types:

[0003] 1. The walls are constructed using clay bricks, or with the lower half made of clay bricks and the upper half of wrought iron. The disadvantages of this structure are: the construction requires strip foundations and on-site mixing of cement mortar, making the process cumbersome. Furthermore, it necessitates manual construction, resulting in a large labor load and a long construction period. Additionally, the use of sintered clay bricks damages farmland and is not environmentally friendly, leading to a higher overall cost.

[0004] 2. Some simple fences use light steel keel, galvanized sheet for the wall surface, and are covered with advertising cloth. Although this structure is quick to construct, unaffected by the season, and inexpensive, it has drawbacks: low strength, poor durability, and poor wind resistance.

[0005] Application CN201410828510.8 discloses a hollow slab prefabricated wall and its installation method. The wall includes a wall body spaced apart, end-supporting steel columns positioned between the wall bodies, and a concrete foundation beam located underground directly below the end-supporting steel columns. The wall body is composed of two prestressed hollow slabs, one above the other. The bottom of the end-supporting steel columns is fixedly connected to the concrete foundation beam, and the two sides of the end-supporting steel columns are connected to the two ends of the prestressed hollow slabs. Although this technology simplifies the wall construction method, it still has the following drawbacks:

[0006] 1. The wall structure is not very robust, and the various parts are rigidly connected. Once the connection is loose or damaged, it can easily lead to the instability of the wall structure. In other words, as the service life of the wall increases, its risk factor is significantly higher than that of ordinary walls, and demolition would involve a large economic cost.

[0007] 2. It has poor seismic performance and lacks sufficient damping measures when an earthquake occurs, thus facing significant safety risks.

[0008] In conclusion, the technology of constructing walls using hollow slabs still needs further improvement. In addition to enhancing construction convenience, it is crucial to improve the structural strength and seismic performance of the walls to ensure their widespread adoption. Summary of the Invention

[0009] This invention provides a prefabricated hollow wall system and construction method, aiming to improve the technology of constructing walls with hollow slabs. While improving the convenience of construction, it can also improve the structural strength and seismic performance of the wall, making this type of wall highly valuable for widespread application.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0011] A prefabricated hollow wall system includes a prefabricated bottom beam, a first prefabricated hollow slab, a second prefabricated hollow slab, and a vibration damping mechanism;

[0012] Precast bottom beam: used to be buried below the ground surface and connected to the bottom end of the first precast hollow slab and the adjacent second precast hollow slab;

[0013] First precast hollow slab: serves as a connecting structure between two adjacent second precast hollow slabs, and is connected to the second precast hollow slabs through a first grouting structure;

[0014] Second precast hollow slab: connected to the side end of the first precast hollow slab, and provided with a second grouting structure, wherein the first grouting structure and the second grouting structure are connected to each other, and a grouting fullness controller is provided in the second grouting structure;

[0015] Vibration damping mechanism: includes a first vibration damping unit and a second vibration damping unit. The first grouting structure and the second grouting structure are connected by the first vibration damping unit, and the upper and lower stacked second precast hollow slabs are connected by the second vibration damping unit.

[0016] Preferably, the precast bottom beam includes a beam body, and an inverted "convex" shaped groove is provided at the top of the beam body along the length direction. The lower part of the "convex" shaped groove is used to engage the bottom ends of the first precast hollow slab and the second precast hollow slab. Several grouting holes are also arranged in a matrix at the bottom of the "convex" shaped groove, and positioning holes are coaxially provided at the bottom ends of the grouting holes.

[0017] Preferably, the first precast hollow slab includes a first slab body, and grouting channels penetrating the upper and lower end faces are opened longitudinally at both ends of the first slab body. The first grouting structure consists of a plurality of pre-embedded steel pipes evenly arranged at the left and right ends of the first slab body. One end of the pre-embedded steel pipe is pre-embedded in the first slab body and communicates with the adjacent grouting channel. The other end of the pre-embedded steel pipe extends out of the first slab body. A first damping unit is provided on the outer wall of the pre-embedded steel pipe located outside the first slab body. A plurality of first through holes penetrating the upper and lower ends are provided on the first slab body between the two grouting channels.

[0018] Preferably, the first damping unit is an annular rubber damping support fixedly installed on the outer surface of the pre-embedded steel pipe.

[0019] Preferably, the second precast hollow slab includes several second through holes penetrating the left and right end faces. Steel sleeves are pre-embedded at both ends of the second through holes. The inner end of the steel sleeve is closed, and the outer end is open. A grouting fullness controller is connected to the cylinder sleeve. When the pre-embedded steel pipe is inserted into the steel sleeve, the outer surface of the annular rubber shock absorber and the inner surface of the steel sleeve are tightly fitted together to form a sealing structure.

[0020] Preferably, the grouting fullness controller includes an air outlet pipe that passes through the top of the sealed end of the steel sleeve, an air bladder located inside the steel sleeve and connected to the inner end of the air outlet pipe, an air inlet pipe at the end of the air bladder away from the air outlet pipe, a first one-way valve that restricts gas flow into the air bladder on the air inlet pipe, and a second one-way valve that restricts gas flow outward on the air outlet pipe.

[0021] Preferably, the second damping unit includes a number of embedded sleeves and damping rods arranged in a matrix and passing through the upper and lower ends of the second precast hollow slab. The embedded sleeves of the upper and lower stacked second precast hollow slabs are connected to each other. The damping rods are stacked through the embedded sleeves and inserted into the positioning holes. Reinforced fiber concrete is poured between the damping rods and the embedded sleeves and between the grouting holes.

[0022] Preferably, the shock absorber is made of shape memory alloy or low-carbon steel.

[0023] A construction method for a prefabricated hollow wall system includes the following steps:

[0024] (1) In the factory, prefabricated bottom beams, first prefabricated hollow slabs, second prefabricated hollow slabs, and shock absorption mechanisms are manufactured according to the structural dimensions of the wall; the height of the first prefabricated hollow slab is the same as the pre-set wall height;

[0025] (2) Transport the precast bottom beam, the first precast hollow slab, the second precast hollow slab, and the vibration damping mechanism to the construction location;

[0026] (3) Excavate a trench at the construction site and place the precast bottom beam horizontally in the trench; insert the bottom end of the first precast hollow slab into the lower part of the "convex" groove, insert the second precast hollow slab into the "convex" groove on both sides of the first precast hollow slab, and move the second precast hollow slab along the "convex" groove so that the embedded steel pipe is connected with the steel sleeve; pour concrete into the "convex" groove, and after the concrete is formed, stack the second precast hollow slab on top of the second precast hollow slab and connect it with the side end of the first precast hollow slab through the steel sleeve and the embedded steel pipe until the preset wall height is reached;

[0027] (4) Connect the grouting pipe to the top of the grouting channel of the first precast hollow slab, connect the grout container and the grouting pipe through the peristaltic pump, and inject grout into the grouting channel. The grout enters each steel sleeve through the pre-embedded steel pipe, and the grouting fullness is controlled by the grouting fullness controller in the steel sleeve.

[0028] (5) Insert damping rods between the upper and lower stacked second precast hollow slabs, insert the bottom end of the damping rods into the positioning holes, and pour reinforced fiber concrete between the damping rods and the pre-embedded sleeves and between the grouting holes.

[0029] (6) After the concrete is formed, apply adhesive mortar and plastering mortar to the wall surface and top of the wall.

[0030] Preferably, in step (3), the method of damping by the first damping unit is as follows: when an earthquake occurs, plastic deformation occurs between the first precast hollow slab and the adjacent second precast hollow slab. At this time, the annular rubber damping support damps and dissipates energy, thus preventing the connection node between the first precast hollow slab and the second precast hollow slab from being damaged under a certain vibration level.

[0031] Preferably, in step (4), the method of controlling the grouting fullness in the steel sleeve by the grouting fullness controller is as follows: the peristaltic pump injects grout into the grouting channel intermittently. Through the force transmission effect, the grout in the steel sleeve increases intermittently, thereby intermittently squeezing the air. After the air is squeezed, the airbag contracts intermittently and then elastically resets after contraction. During the reset process, the airbag draws in air, and during the contraction process, the airbag discharges gas, so that the air in the steel sleeve is continuously released. Finally, after the grout fills to a certain extent, the airbag collapses and loses its air extraction function, and the grouting in the steel sleeve is completed.

[0032] Preferably, in step (5), the method of damping by the second damping unit is as follows: the matrix arrangement of several damping rods and the fiber-reinforced concrete poured around the damping rods damps and consumes energy when an earthquake occurs. When damping and consuming energy, it resists the vibration forces in various horizontal and longitudinal directions, and avoids the second precast hollow slabs that are superimposed on each other from being damaged by an earthquake of a certain intensity.

[0033] The beneficial effects of the prefabricated hollow wall system and construction method of the present invention are as follows:

[0034] This invention improves the technology of constructing walls with hollow slabs. While facilitating construction and improving construction efficiency, the walls constructed with hollow slabs are integral, strong, and have strong seismic resistance, making them suitable for widespread use. Attached image description:

[0035] To clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1A cross-sectional structural diagram of the construction process of a prefabricated hollow wall system according to the present invention.

[0037] Figure 2 The present invention provides a front view structural diagram of a prefabricated hollow wall system during construction.

[0038] Figure 3 A side view of the prefabricated hollow wall system during construction, according to the present invention.

[0039] Figure 4 A top view of the prefabricated bottom beam of the present invention.

[0040] Figure 5 A schematic diagram of the structure of the second damping unit of the present invention.

[0041] Figure 6 A top view of the second prefabricated hollow slab of the present invention.

[0042] Figure 7 A schematic diagram of the pre-embedded steel pipe inserted into the steel sleeve according to the present invention.

[0043] 1. Precast bottom beam; 1-1. "convex" shaped groove; 1-2. Grouting hole; 2. Second precast hollow slab; 3. First precast hollow slab; 4. First through hole; 5. Grouting channel; 6. Embedded steel pipe; 7. Second through hole; 8. Steel sleeve; 9. Embedded sleeve; 10. Vibration damping rod; 11. Annular rubber vibration damping support; 12. Air outlet pipe; 13. Airbag; 14. Air inlet pipe. Detailed implementation method:

[0044] The following description provides a detailed explanation of the embodiments of the present invention in a step-by-step manner. This description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0045] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limiting this invention.

[0046] Example 1:

[0047] A prefabricated hollow wall system, such as Figure 1-7 As shown, it includes a precast bottom beam 1, a first precast hollow slab 3, a second precast hollow slab 2, and a shock absorption mechanism;

[0048] Precast bottom beam 1: used to be buried below the ground surface and connected to the bottom end of the first precast hollow slab 3 and the adjacent second precast hollow slab 2;

[0049] First precast hollow slab 3: serves as a connecting structure between two adjacent second precast hollow slabs 2, and is connected to the second precast hollow slab 2 through a first grouting structure;

[0050] The second precast hollow slab 2 is connected to the side end of the first precast hollow slab 3 and is provided with a second grouting structure. The first grouting structure and the second grouting structure are connected to each other, and a grouting fullness controller is provided in the second grouting structure.

[0051] Vibration damping mechanism: includes a first vibration damping unit and a second vibration damping unit. The first grouting structure and the second grouting structure are connected by the first vibration damping unit, and the upper and lower stacked second precast hollow slabs are connected by the second vibration damping unit.

[0052] Example 2

[0053] Based on Example 1, this example discloses:

[0054] like Figure 1-4 As shown, the precast bottom beam 1 includes a beam body. An inverted "convex" shaped groove 1-1 is opened at the top of the beam body along the length direction. The lower part of the "convex" shaped groove 1-1 is used to engage the bottom ends of the first precast hollow slab 3 and the second precast hollow slab 2. Several grouting holes 1-2 are also arranged in a matrix at the bottom of the "convex" shaped groove 1-1. The bottom end of the grouting hole is coaxially provided with a positioning hole (not marked in the figure, used to position the bottom end of the shock absorber).

[0055] Example 3

[0056] Based on Example 1, this example discloses:

[0057] like Figure 1 , 3 As shown, the first precast hollow slab 3 includes a first slab body. Both ends of the first slab body are longitudinally provided with grouting channels 5 that penetrate the upper and lower end faces. The first grouting structure consists of several pre-embedded steel pipes 6 evenly arranged at the left and right ends of the first slab body. One end of the pre-embedded steel pipe 6 is pre-embedded in the first slab body and communicates with the adjacent grouting channel 5. The other end of the pre-embedded steel pipe 6 extends out of the first slab body. A first damping unit is provided on the outer wall of the pre-embedded steel pipe located outside the first slab body. Several first through holes 4 penetrating the upper and lower ends are provided on the first slab body between the two grouting channels.

[0058] like Figure 7 As shown, the first damping unit is an annular rubber damping support 11 fixedly installed on the outer surface of the pre-embedded steel pipe 6.

[0059] Example 4

[0060] Based on embodiments 1, 2, and 3, this embodiment discloses:

[0061] like Figure 1 , 2 As shown in Figures 3 and 5, the second precast hollow slab 2 includes several second through holes 7 penetrating the left and right end faces. Steel sleeves 8 are pre-embedded at both ends of each second through hole 7. The inner end of the steel sleeve 8 is closed, and the outer end is open. A grouting fullness controller is connected to the sleeve 8. Figure 7 As shown, when the pre-embedded steel pipe 6 is inserted into the steel sleeve 8, the outer surface of the annular rubber shock absorber 11 and the inner surface of the steel sleeve 8 are tightly fitted together to form a sealing structure.

[0062] Example 5

[0063] Based on Example 4, this example discloses:

[0064] like Figure 1 , 7 As shown, the grouting fullness controller includes an air outlet pipe 12 that penetrates the top of the sealed end of the steel sleeve 8, an air bladder 13 located inside the steel sleeve 8 and connected to the inner end of the air outlet pipe 12, an air inlet pipe 14 located at the end of the air bladder 13 away from the air outlet pipe 12, a first one-way valve that restricts gas flow into the air bladder 13 on the air inlet pipe 14, and a second one-way valve that restricts gas flow outward on the air outlet pipe.

[0065] Example 6

[0066] Based on Example 5, this example discloses:

[0067] like Figure 4 , 5 As shown in Figure 6, the second damping unit includes several embedded sleeves 9 arranged in a matrix and penetrating the upper and lower ends of the second precast hollow slab 2, and damping rods 10. The embedded sleeves 9 of the second precast hollow slab 2 stacked on top of each other are connected to each other. The damping rods 10 are stacked on the embedded sleeves 9 and inserted into the positioning holes. Reinforced fiber concrete is poured between the damping rods 10 and the embedded sleeves 9 and between the grouting holes 1-2.

[0068] like Figure 5 As shown, the shock absorber 10 is made of shape memory alloy or low carbon steel.

[0069] Example 7

[0070] Based on the above embodiments, this embodiment discloses:

[0071] A construction method for a prefabricated hollow wall system includes the following steps:

[0072] (1) In the factory, prefabricated bottom beam 1, first prefabricated hollow slab 3, second prefabricated hollow slab 2, and shock absorption mechanism are manufactured according to the structural dimensions of the wall; the height of the first prefabricated hollow slab 3 is the same as the preset wall height;

[0073] (2) Transport the precast bottom beam 1, the first precast hollow slab 3, the second precast hollow slab 2, and the shock absorption mechanism to the construction location;

[0074] (3) Excavate a trench at the construction site and place the precast bottom beam 1 horizontally in the trench; insert the bottom end of the first precast hollow slab 3 into the lower part of the "convex" groove 1-1, insert the second precast hollow slab 2 into the "convex" groove 1-1 on both sides of the first precast hollow slab 3, and move the second precast hollow slab 2 along the "convex" groove so that the embedded steel pipe 6 is connected with the steel sleeve 8; pour concrete into the "convex" groove 1-1, and after the concrete is formed, stack the second precast hollow slab 2 on top of the second precast hollow slab 2 and connect it with the side end of the first precast hollow slab 3 through the steel sleeve 6 and the embedded steel pipe 8 until the preset wall height is reached;

[0075] (4) Connect the grouting pipe to the top of the grouting channel 5 of the first precast hollow slab 3, connect the grout container and the grouting pipe through the peristaltic pump, and inject grout into the grouting channel 5. The grout enters each steel sleeve 8 through the pre-embedded steel pipe 6. The grouting fullness is controlled by the grouting fullness controller in the steel sleeve 8.

[0076] (5) Insert damping rods 10 between the upper and lower stacked second precast hollow slabs 2, insert the bottom end of the damping rods 10 into the positioning hole, and pour reinforced fiber concrete between the damping rods 10 and the pre-embedded sleeves 9 and between the grouting holes 1-2.

[0077] (6) After the concrete is formed, apply adhesive mortar and plastering mortar to the wall surface and top of the wall.

[0078] Example 8

[0079] Based on Example 7, this example discloses:

[0080] like Figure 1-7 As shown, in step (3), the method of damping by the first damping unit is as follows: when an earthquake occurs, plastic deformation occurs between the first precast hollow slab 3 and the adjacent second precast hollow slab 2. At this time, the annular rubber damping support 11 damps and dissipates energy, so as to avoid damage to the connection node between the first precast hollow slab 3 and the second precast hollow slab 2 under a certain vibration level.

[0081] like Figure 1-7As shown, in step (4), the method of controlling the grouting fullness in the steel sleeve 8 by the grouting fullness controller is as follows: the peristaltic pump injects grout into the grouting channel intermittently. Through the force transmission effect, the grout in the steel sleeve increases intermittently and then squeezes the air intermittently. After the air is squeezed, the airbag contracts intermittently and then recovers due to elasticity. During the recovery process, the airbag draws in air and during the contraction process, the airbag discharges gas, so that the air in the steel sleeve is continuously released. Finally, after the grout fills to a certain extent, the airbag collapses and loses its air extraction function, and the grouting in the steel sleeve is completed.

[0082] like Figure 1-7 As shown, in step (5), the method of damping by the second damping unit is as follows: the matrix arrangement of several damping rods 10 and the fiber-reinforced concrete poured around the damping rods damping energy when an earthquake occurs. When damping energy, it resists the vibration force in each horizontal direction and avoids the second precast hollow slabs that are superimposed on each other being damaged by an earthquake of a certain intensity, that is, they are misaligned and deformed.

[0083] This embodiment illustrates the working principle of the present invention. Based on the above description of the embodiments, it can be understood that the present invention, while facilitating construction and improving construction efficiency, also provides a holistic wall structure with high strength and earthquake resistance through the construction of hollow slabs, making it suitable for widespread application.

Claims

1. A prefabricated hollow wall system, characterized by: It includes a precast bottom beam, a first precast hollow slab, a second precast hollow slab, and a vibration damping mechanism; Precast bottom beam: used to be buried below the ground surface and connected to the bottom end of the first precast hollow slab and the adjacent second precast hollow slab; First precast hollow slab: serves as a connecting structure between two adjacent second precast hollow slabs, and is connected to the second precast hollow slabs through a first grouting structure; Second precast hollow slab: connected to the side end of the first precast hollow slab, and provided with a second grouting structure, wherein the first grouting structure and the second grouting structure are connected to each other, and a grouting fullness controller is provided in the second grouting structure; Vibration damping mechanism: includes a first vibration damping unit and a second vibration damping unit. The first grouting structure and the second grouting structure are connected by the first vibration damping unit, and the upper and lower stacked second precast hollow slabs are connected by the second vibration damping unit. The precast bottom beam includes a beam body, with an inverted "convex" shaped groove opened at the top of the beam body along the length direction. The lower part of the "convex" shaped groove is used to engage the bottom ends of the first precast hollow slab and the second precast hollow slab. Several grouting holes are also arranged in a matrix at the bottom of the "convex" shaped groove, and positioning holes are coaxially opened at the bottom end of the grouting holes. The first precast hollow slab includes a first slab body. Both ends of the first slab body are longitudinally provided with grouting channels that penetrate the upper and lower end faces. The first grouting structure consists of several pre-embedded steel pipes evenly arranged at the left and right ends of the first slab body. One end of the pre-embedded steel pipe is pre-embedded in the first slab body and communicates with the adjacent grouting channel. The other end of the pre-embedded steel pipe extends out of the first slab body. A first damping unit is provided on the outer wall of the pre-embedded steel pipe located outside the first slab body. Several first through holes penetrating the upper and lower ends are provided on the first slab body between the two grouting channels. The first damping unit is an annular rubber damping support fixed on the outer surface of the pre-embedded steel pipe; The second precast hollow slab includes several second through holes that penetrate the left and right end faces. Steel sleeves are pre-embedded at both ends of the second through holes. The inner end of the steel sleeve is closed and the outer end is open. A grouting fullness controller is connected to the cylinder sleeve. When the pre-embedded steel pipe is inserted into the steel sleeve, the outer surface of the annular rubber shock absorber and the inner surface of the steel sleeve are tightly fitted together to form a sealing structure. The grouting fullness controller includes an air outlet pipe that passes through the top of the sealed end of the steel sleeve, an air bladder located inside the steel sleeve and connected to the inner end of the air outlet pipe, an air inlet pipe at the end of the air bladder away from the air outlet pipe, a first one-way valve that restricts gas flow into the air bladder on the air inlet pipe, and a second one-way valve that restricts gas flow outward on the air outlet pipe.

2. The prefabricated hollow wall system as described in claim 1, characterized in that: The second damping unit includes several embedded sleeves and damping rods arranged in a matrix and passing through the upper and lower ends of the second precast hollow slab. The embedded sleeves of the upper and lower stacked second precast hollow slabs are connected to each other. The damping rods pass through and are stacked on the embedded sleeves and inserted into the positioning holes. Reinforced fiber concrete is poured between the damping rods and the embedded sleeves and between the grouting holes.

3. The prefabricated hollow wall system as described in claim 2, characterized in that: The shock absorber rod is made of shape memory alloy or low carbon steel.

4. A construction method for a prefabricated hollow wall system as described in claim 3, comprising the following steps: (1) In the factory, prefabricated bottom beams, first prefabricated hollow slabs, second prefabricated hollow slabs, and shock absorption mechanisms are manufactured according to the structural dimensions of the wall; the height of the first prefabricated hollow slab is the same as the pre-set wall height; (2) Transport the precast bottom beam, the first precast hollow slab, the second precast hollow slab, and the vibration damping mechanism to the construction location; (3) Excavate a trench at the construction site and place the precast bottom beam horizontally in the trench; insert the bottom end of the first precast hollow slab into the lower part of the "convex" groove, insert the second precast hollow slab into the "convex" groove on both sides of the first precast hollow slab, and move the second precast hollow slab along the "convex" groove so that the embedded steel pipe is connected with the steel sleeve; pour concrete into the "convex" groove, and after the concrete is formed, stack the second precast hollow slab on top of the second precast hollow slab and connect it with the side end of the first precast hollow slab through the steel sleeve and the embedded steel pipe until the preset wall height is reached; (4) Connect the grouting pipe to the top of the grouting channel of the first precast hollow slab, connect the grout container and the grouting pipe through the peristaltic pump, and inject grout into the grouting channel. The grout enters each steel sleeve through the pre-embedded steel pipe, and the grouting fullness is controlled by the grouting fullness controller in the steel sleeve. (5) Insert damping rods between the upper and lower stacked second precast hollow slabs, insert the bottom end of the damping rod into the positioning hole, and pour reinforced fiber concrete between the damping rod and the pre-embedded sleeve and between the grouting hole. (6) After the concrete is formed, apply adhesive mortar and plastering mortar to the wall surface and top of the wall.

5. The construction method of the prefabricated hollow wall system as described in claim 4, characterized in that: In step (3), the method of vibration reduction by the first damping unit is as follows: when an earthquake occurs, plastic deformation occurs between the first precast hollow slab and the adjacent second precast hollow slab. At this time, the annular rubber damping support reduces vibration and consumes energy, thus preventing the connection node between the first precast hollow slab and the second precast hollow slab from being damaged under a certain vibration level. In step (4), the method of controlling the grouting fullness in the steel sleeve by the grouting fullness controller is as follows: the peristaltic pump injects grout into the grouting channel intermittently. Through the force transmission effect, the grout in the steel sleeve intermittently increases and then intermittently squeezes the air. After the air is squeezed, the airbag contracts intermittently and then elastically resets after contraction. During the reset process, the airbag draws in air and during the contraction process, the airbag discharges gas, so that the air in the steel sleeve is continuously released. Finally, after the grout fills to a certain extent, the airbag collapses and loses its air extraction function, and the grouting in the steel sleeve is completed. In step (5), the method of vibration reduction by the second vibration reduction unit is as follows: the matrix arrangement of several vibration reduction rods and the fiber-reinforced concrete poured around the vibration reduction rods will reduce vibration and consume energy when an earthquake occurs. When reducing vibration and consuming energy, it will resist the vibration forces in various horizontal and longitudinal directions and prevent the superimposed second precast hollow slab from being damaged by an earthquake of a certain intensity.

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