A new type of liquid coordinated damper using glass fiber reinforced plastic

Abstract

The present invention discloses a new type of liquid coordinated damper using glass fiber reinforced plastics, including a reinforced concrete water tank, a cross-section glass fiber reinforced plastic slurry column, stressed steel bars, embedded sleeves and welded steel plates; the reinforced concrete water tank can contain the coordinated liquid damper liquid, and the reinforced concrete water tank top plate and the building top floor are both provided with stressed steel bars and embedded sleeves, and the embedded sleeves are connected to the stressed steel bars through welded steel plates; the cross-section glass fiber reinforced plastic slurry column is located in the box, and the top and bottom of the cross-section glass fiber reinforced plastic slurry column are respectively connected to the reinforced concrete water tank top plate and the building top floor through corresponding embedded sleeves. The present invention has a simple structure and is easy to construct. The connection method of the glass fiber reinforced plastic slurry column makes it easy to construct and maintain, which can not only meet the requirements of the liquid coordinated damper for the stiffness and strength of the slurry column, but also reduce the construction and later maintenance costs caused by material weight and corrosion, and improve the safety and reliability of the liquid coordinated damper during service.

Description

Technical Field

[0001] The invention relates to the technical field of vibration control of high-rise buildings in structural engineering, and in particular to a novel liquid coordination damper using glass fiber reinforced plastics. Background Art

[0002] The internal slurry column of a traditional TLD (liquid coordinated damper) is generally designed with materials such as concrete or steel. However, due to the complexity of the water tank structure, it is mostly constructed by on-site integral casting.

[0003] When steel is used as the material for the slurry column, the construction process has problems such as heavy weight and complicated hoisting and installation process. In addition, steel is very easy to react chemically with water, resulting in steel corrosion, difficult maintenance of the slurry column and high maintenance cost. When concrete is used as the material for the slurry column, due to its poor deformation capacity, the energy dissipation capacity of TLD (liquid coordinated damper) is reduced, and concrete needs to be poured on site, resulting in a long construction period.

[0004] At present, the production process of composite materials is becoming increasingly mature and is widely used in multiple industries. Therefore, how to more reasonably apply such high-performance composite materials to the design of liquid coordinated dampers and break through the limitations of existing materials and construction processes on the application of TLD (liquid coordinated dampers) is an urgent problem to be solved in scientific research and engineering practice. Summary of the invention

[0005] The purpose of the present invention is to provide a new type of liquid coordinated damper using fiberglass to solve the problems mentioned in the background technology. The method of the present invention can be applied to the design of a new type of coordinated liquid damper for wind vibration control of super high-rise buildings, and can give full play to the material advantages of fiberglass composite materials such as corrosion resistance and light weight. The use of the new type of coordinated liquid damper slurry column of the present invention can not only meet the requirements of strength and stiffness, but also reduce the construction and subsequent maintenance costs caused by material weight and corrosion, and improve the safety and reliability of the liquid coordinated damper during service.

[0006] In order to achieve the purpose of the present invention, the present invention provides a new type of liquid coordinated damper using glass fiber reinforced plastics, including a reinforced concrete water tank, a cross-section glass fiber reinforced plastic slurry column, a stressed steel bar, an embedded sleeve and a welded steel plate;

[0007] The reinforced concrete water tank comprises a reinforced concrete water tank top plate and a reinforced concrete water tank side wall, the bottom of the reinforced concrete water tank side wall is used to be fixedly connected to the top floor of the building, the reinforced concrete water tank top plate is used to be fixed to the top of the reinforced concrete water tank side wall, the reinforced concrete water tank top plate, the reinforced concrete water tank side wall and the top floor of the building are surrounded to form a box body, the box body can accommodate liquid of the coordinated liquid damper, and the reinforced concrete water tank top plate and the top floor of the building are both provided with stress-bearing steel bars and embedded sleeves, and the embedded sleeves are connected to the stress-bearing steel bars by welding steel plates;

[0008] The cross-section glass fiber reinforced plastic slurry column is located in the box, and the top and bottom of the cross-section glass fiber reinforced plastic slurry column are respectively connected to the reinforced concrete water tank top plate and the top floor slab of the building through corresponding embedded sleeves.

[0009] Furthermore, the reinforced concrete water tank is manufactured through on-site construction.

[0010] Furthermore, the cross-section fiberglass slurry column is prefabricated in a factory.

[0011] Furthermore, the cross-section fiberglass reinforced plastic slurry column includes a cross-section fiberglass reinforced plastic slurry column, a fiberglass reinforced plastic slurry column connecting plate fixed at both ends of the cross-section fiberglass reinforced plastic slurry column, and a plurality of slurry column stiffening ribs arranged along the length direction of the cross-section fiberglass reinforced plastic slurry column.

[0012] Furthermore, according to the structural requirements, the thickness of the slurry column stiffening ribs is consistent with the thickness of the cross-section slurry column, and the number is arranged at a preset interval (such as 500mm) according to the height of the slurry column. The lateral displacement and maximum bending moment of the entire slurry column should meet the requirements of the following formula:

[0013]

[0014] Where: F max To obtain the maximum shear force at the bottom of the slurry column through test and simulation analysis; R A is the bottom reaction force of the FRP slurry column; M max Indicates the maximum bending moment at the bottom of the slurry column under the action of water flow; M A is the bending moment at the bottom of the FRP slurry column; E is the elastic modulus of the FRP; L is the length of the FRP slurry column; l is the height of the liquid in the coordinated liquid damper.

[0015] Furthermore, a bolt connection reserved hole is opened on the FRP slurry column connecting plate, and the FRP slurry column connecting plate and the embedded sleeve are connected by the cooperation of high-strength bolts and the bolt connection reserved hole.

[0016] Furthermore, the reinforced concrete water tank adopts C20, C25 or C30 grade concrete, the load-bearing steel bars adopt HRB400 grade steel bars, and the cross-section fiberglass slurry column adopts fiberglass material with FRP content of 42.5%, 43.7%, 44.55% or more.

[0017] Furthermore, the dimensions of the reinforced concrete water tank are designed based on the functional use, the strength and deformation of the building's top floor slab.

[0018] Furthermore, the dimensions of the cross-section FRP slurry column meet the following formula requirements:

[0019]

[0020] Where: M x 、M y is the maximum bending moment at the bottom of the slurry column obtained through experiments and simulation analysis; W nx , W ny is the net section modulus of FRP slurry column; x , γ y is the plastic development coefficient of the FRP slurry column section; f g is the design value of the bending strength of FRP; V is the maximum shear force at the bottom of the slurry column obtained through tests and simulation analysis; S is the gross cross-sectional area moment of the FRP slurry column; I is the gross cross-sectional inertia moment of the FRP slurry column; t w is the thickness of the cross-section FRP slurry column; f vg It is the design value of shear strength of FRP.

[0021] Furthermore, the embedded sleeve strength, welded steel plate length, high-strength bolt diameter and strength should meet the following formula requirements:

[0022]

[0023] Where: N Ed 、V Ed is the design value of tensile and shear load of embedded sleeve; N Rd,s 、V Rd,s is the design value of the tensile and shear bearing capacity of the embedded sleeve; D is the diameter of the longitudinal force-bearing steel bars of the top floor slab of the building and the reinforced concrete water tank; f t is the tensile strength of the longitudinal reinforcement of the building's top floor and reinforced concrete water tank; K is the stress concentration factor of the double-sided fillet weld; h e is the effective height of fillet weld; l w is the calculated length of the weld; l dw The calculated length of the single-sided weld.

[0024] The steps of the present invention are as follows:

[0025] (1) Design the size and reinforcement of the reinforced concrete water tank based on the bearing capacity of the building's top floor slab and the actual fire protection requirements.

[0026] (2) Through TLD water tank shaking table test and CFD simulation, the maximum shear force F in the x and y directions at the bottom of the slurry column under 50-year recurring wind load was determined. x 、F y , maximum bending moment M x 、M y .

[0027] (3) Based on the test and CFD simulation results, the bending bearing capacity, shear bearing capacity, and bending deformation of the FRP slurry column are calculated, and the cross-sectional dimensions, number of stiffening ribs, and thickness of the FRP slurry column are designed.

[0028] (4) Based on the test and CFD simulation results, the shear bearing capacity of the FRP slurry column connection is calculated, and the embedded sleeve strength, welding steel plate length, and the number and strength of high-strength bolts are designed.

[0029] (5) After completing the cross-section design, the installation of the new liquid coordinated damper of the FRP is completed according to the construction sequence of pre-embedding the sleeve, hoisting the slurry column, connecting the slurry column with high-strength bolts, assembling the formwork, tying the steel bars, welding the sleeve, pouring the water tank concrete, and tightening the high-strength bolts.

[0030] Compared with the prior art, the liquid coordinated damper of the present invention has the following beneficial effects:

[0031] (1) It can effectively utilize the advantages of FRP’s light weight, avoid the complex construction caused by the heavy weight of steel, reduce the number of construction machinery and workers, improve the construction efficiency of the liquid coordination damper hoisting and installation process, and reduce the overall construction cost;

[0032] (2) Make full use of the corrosion resistance of FRP materials to overcome the long-term corrosion maintenance process of traditional steel caused by chemical reactions, reduce the post-maintenance cost of liquid coordinated dampers, and enhance the application and promotion of such components.

[0033] (3) Unlike traditional steel slurry column designs that require extensive on-site welding, FRP slurry columns can be processed and formed in the factory through integrated molds, effectively avoiding safety issues caused by on-site construction errors, effectively reducing on-site construction, and improving the safety and reliability of the entire liquid coordinated damper.

[0034] (4) The present invention has a clear design principle, a simple structure, and is easy to construct. The fiberglass reinforced plastic slurry columns connected by high-strength bolts are convenient for construction and maintenance. It can not only meet the requirements of the liquid coordinated damper for the stiffness and strength of the slurry columns, but also reduce the construction and subsequent maintenance costs caused by material weight and corrosion, thereby improving the safety and reliability of the liquid coordinated damper during its service. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic elevation view of a novel liquid coordinated damper using fiberglass provided in an embodiment of the present invention.

[0036] Figure 2 It is a schematic plan view of an embodiment of the present invention.

[0037] Figure 3 It is a schematic elevation view of a cross-section fiberglass slurry column according to an embodiment of the present invention.

[0038] Figure 4 This is a structural diagram of the bottom connecting plate of the slurry column according to an embodiment of the present invention.

[0039] Figure 5 Schematic diagram of the welding of the embedded sleeve in an embodiment of the present invention.

[0040] Figure 6 It is a cross-sectional schematic diagram of the slurry column stiffening rib in an embodiment of the present invention.

[0041] Figure numerals: 1- reinforced concrete water tank side wall; 2- reinforced concrete water tank top plate; 3- building top floor slab; 4- reinforced concrete water tank sleeve embedded hole; 5- cross-section slurry column; 6- bolt connection reserved hole; 7- slurry column stiffening rib; 8- glass fiber reinforced plastic slurry column connecting plate; 9- embedded sleeve; 10- longitudinal stress-bearing steel bar; 11- welded steel plate; 12- high-strength bolt; 13- liquid. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by users, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0043] like Figure 1 , Figure 2 As shown, the present invention provides a novel liquid coordinated damper using glass fiber reinforced plastics, comprising a reinforced concrete water tank, a cross-section glass fiber reinforced plastic slurry column, longitudinal stress-bearing steel bars 10, an embedded sleeve 9 and a welded steel plate 11.

[0044] The reinforced concrete water tank comprises a reinforced concrete water tank top plate 2 and two oppositely arranged reinforced concrete water tank side walls 1 and reinforced concrete water tank top plate 2. The reinforced concrete water tank is made for on-site construction. The bottom of the reinforced concrete water tank side wall 1 is fixedly connected to the top floor slab 3 of the building, and the top of the reinforced concrete water tank side wall 1 is fixedly connected to the reinforced concrete water tank top plate 2. The top floor slab 3 of the building, the reinforced concrete water tank side wall 1 and the reinforced concrete water tank top plate 2 surround to form a box body. The box body can accommodate liquid 13 of the coordinated liquid damper, and the reinforced concrete water tank top plate 2 and the top floor slab 3 of the building are both provided with longitudinal stress-bearing steel bars 10 and embedded sleeves 9, and the embedded sleeves 9 are connected to the longitudinal stress-bearing steel bars 10 by welding steel plates 11. The cross-section glass fiber reinforced plastic slurry column is located in the box body, and the top and bottom of the cross-section glass fiber reinforced plastic slurry column are respectively connected to the reinforced concrete water tank top plate 2 and the top floor slab 3 of the building through corresponding embedded sleeves 9.

[0045] In some embodiments of the present invention, the cross-section fiberglass slurry column includes a cross-section slurry column 5, a fiberglass slurry column connecting plate 8 fixed at both ends of the cross-section slurry column 5, and a plurality of slurry column stiffening ribs 7 arranged along the length direction of the cross-section slurry column 5. The fiberglass slurry column connecting plate 8 is provided with a bolt connection reserved hole 6. The cross-section fiberglass slurry column and the embedded sleeve 9 are fixed by the cooperation of high-strength bolts 12 with the bolt connection reserved hole 6 and the embedded sleeve 9, so that the whole component is connected and tightened. The embedded sleeve 9 is connected to the longitudinal force-bearing steel bar 10 by welding the steel plate 11. During the whole process, it is ensured that the embedded hole 4 of the reinforced concrete water tank sleeve on the top floor slab 3 of the building and the reinforced concrete water tank top plate 2 is not blocked by concrete.

[0046] In some embodiments of the present invention, the design process of the damper is as follows:

[0047] (1) Based on the bearing capacity of the top floor slab 3 of the building and the actual fire protection function requirements, the strength calculation and deflection calculation are adopted to design the length of the reinforced concrete water tank side wall 1 to be 10000mm, the width to be 4200mm and the height to be 5000mm. Based on the mid-span deflection calculation, the thickness of the reinforced concrete water tank top slab 2 is designed to be 120mm.

[0048] (2) Through the TLD water tank shaking table test and CFD simulation of the TLD water tank shaking table test, the acceleration, wave height and force of the slurry column in the TLD are measured using equipment such as a force balance and a wave height meter. Combined with the CFD simulation results, the vibration effect of the slurry column water tank under the 50-year recurring wind load is clarified, and the maximum shear force F in the x and y directions at the bottom of the slurry column is measured. x 、F y , maximum bending moment M x 、M y .

[0049] (3) Based on the cross-section FRP column dimensions (length × width × thickness × thickness) (546 × 546 × 20 × 20, unit: mm) and material type (in some embodiments of the present invention, FRP with 42.5% FRP, 43.7% FRP and 44.5% FRP content can be selected), the maximum bending moment M at the bottom of the column obtained from the test and simulation results x 、M y , the following formula is used to calculate the bending strength of the slurry column:

[0050]

[0051] Where: M x 、M y The maximum bending moment at the bottom of the slurry column obtained by test and simulation analysis; W nx , W ny is the net section modulus of the cross-section FRP slurry column; γ x , γ y is the cross-section plastic development coefficient of the FRP slurry column; f g It is the design value of the flexural strength of FRP material.

[0052] (4) The maximum shear force F at the bottom of the slurry column obtained based on the test and simulation results x 、F y , the following formula is used to calculate the shear strength of the slurry column:

[0053]

[0054] Where: V is the maximum shear force at the bottom of the slurry column obtained from the test and simulation analysis; S is the gross cross-sectional area moment of the cross-section FRP slurry column; I is the gross cross-sectional inertia moment of the cross-section FRP slurry column; t w is the thickness of the cross-section FRP slurry column; f vg It is the design value of shear strength of FRP material.

[0055] (5) The maximum shear force F at the bottom of the slurry column obtained based on the test and simulation results x 、F y , maximum bending moment M x 、M y , the following formula is used to verify the bending of the slurry column:

[0056]

[0057] Where: Δ max F is the maximum displacement of the top of the cross-section FRP slurry column; maxThe maximum shear force at the bottom of the cross-section FRP slurry column is obtained by test and simulation analysis; L is the length of the cross-section FRP slurry column; E is the material elastic modulus of the cross-section FRP slurry column; I x represents the cross-section inertia moment of the FRP column in the x direction; q max It represents the lateral uniform force on the FRP slurry column under the action of water flow; M max Indicates the maximum bending moment at the bottom of the slurry column under the action of water flow; R A M is the bottom reaction force of the cross-section FRP slurry column; A is the bottom bending moment of the cross-section FRP slurry column and l is the height of the liquid of the coordinated liquid damper.

[0058] (6) Based on the deadweight of the cross-section FRP slurry column, the design value of the bearing capacity of the embedded sleeve, and the maximum shear force F at the bottom of the cross-section FRP slurry column, x 、F y The following formula is used to calculate the bearing capacity of the embedded sleeve:

[0059]

[0060] Where: N Ed 、V Ed are the design values ​​of tension and shear loads on the embedded sleeve respectively; N Rd,s 、V Rd,s It is the design value of the tensile and shear bearing capacity of the embedded sleeve.

[0061] (7) Based on the shear bearing capacity of the steel bars and the welds, the weld strength is verified using the following formula:

[0062]

[0063] Where: D is the diameter of the longitudinal stress-bearing steel bar; f t is the tensile strength of the longitudinal reinforcement; K is the stress concentration factor of the double-sided fillet weld; h e is the effective height of fillet weld; l w is the calculated length of the weld; l dw The calculated length of the single-sided weld.

[0064] (8) According to the calculation results, adjust the type of the cross-section FRP slurry column, the size of the cross-section FRP slurry column, the number and size of the reserved holes 6 for bolt connection, the thickness of the slurry column stiffening rib 7, the size of the embedded sleeve 9, the size of the welding steel plate 11, and the strength and diameter of the high-strength bolt 12. Among them, the method of adjusting the type of the cross-section FRP slurry column is as follows: if the top lateral displacement of the cross-section FRP slurry column is large, the fiber content of the FRP material should be increased; if the top lateral displacement of the cross-section FRP slurry column is small, the fiber content of the FRP material can be reduced, and it can be changed in a gradient according to 5% of the fiber content.

[0065] The on-site construction process is as follows:

[0066] (1) Figure 5 As shown, before pouring the top floor slab 3 of the building, a welding steel plate 11 with the same length as the embedded sleeve 9 and a width of 50 mm is used with an E50 grade welding rod as the base material to weld the embedded sleeve 9 and the longitudinal stress-bearing steel bar 10, and the embedded sleeve 9 is sealed with a plastic film.

[0067] (2) After the concrete strength of the top floor slab 3 of the building reaches 100%, the factory-prefabricated cross-section fiberglass reinforced plastic slurry column with stiffening ribs is installed. A single steel wire rope is fixed at 1 / 3 of the distance from the top of the slurry column, and it is lifted to the installation position by the rotation method, and temporary supports are set to prevent the slurry column position from shifting.

[0068] (3) When high-strength bolts 12 are used to connect with the embedded sleeve 9, the slurry column should be temporarily fixed by initial tightening. At the same time, a plumb bob should be used to calibrate the verticality, and then the final fixation should be carried out according to the pre-tightening force requirements of the high-strength bolts.

[0069] (4) After completing the lower connection installation of the cross-section FRP slurry column, install the template of the reinforced concrete water tank top plate 2 according to the drawing dimensions and design requirements, lay the longitudinal stress-bearing steel bars 10, and weld the embedded sleeve 9 and the longitudinal stress-bearing steel bars 10 with a welding steel plate 11 of the same length and width of 50 mm as the embedded sleeve 9 using E50 grade welding rods to complete the upper sleeve embedded construction, and the embedded sleeve 9 should be sealed with a plastic film.

[0070] (5) After the concrete strength of the reinforced concrete water tank top plate 2 reaches 100%, the formwork is removed and the upper part of the cross-section glass slurry column is connected to the embedded sleeve 9 using high-strength bolts 12.

[0071] The above embodiments are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A new type of liquid coordinated damper using glass fiber reinforced plastics, characterized in that: It comprises a reinforced concrete water tank, a cross-section glass fiber reinforced plastic mortar column, a stress-bearing steel bar (10), a pre-embedded sleeve (9) and a welded steel plate (11); The reinforced concrete water tank comprises a reinforced concrete water tank top plate (2) and a reinforced concrete water tank side wall (1); the bottom of the reinforced concrete water tank side wall (1) is used for fixed connection with the top floor slab (3) of a building; the reinforced concrete water tank top plate (2) is used for fixing on the top of the reinforced concrete water tank side wall (1); the reinforced concrete water tank top plate (2), the reinforced concrete water tank side wall (1) and the top floor slab (3) of the building are surrounded to form a box body; the box body can contain a liquid (13) for coordinating a liquid damper; and both the reinforced concrete water tank top plate (2) and the top floor slab (3) of the building are provided with stress-bearing steel bars (10) and embedded sleeves (9); the embedded sleeves (9) are connected to the stress-bearing steel bars (10) by welding a steel plate (11); The cross-section glass fiber reinforced plastic slurry column is located in the box, and the top and bottom of the cross-section glass fiber reinforced plastic slurry column are detachably connected to the reinforced concrete water tank top plate (2) and the top floor plate (3) of the building through corresponding embedded sleeves (9).

2. A new type of liquid coordinated damper using glass fiber reinforced plastic according to claim 1, characterized in that: The reinforced concrete water tank is manufactured through on-site construction.

3. According to claim 1, a new type of liquid coordinated damper using glass fiber reinforced plastics is characterized in that: The cross-section glass fiber reinforced plastic slurry column is prefabricated in a factory.

4. The novel liquid coordinated damper using glass fiber reinforced plastics according to claim 1 is characterized in that: The cross-section glass fiber reinforced plastic slurry column comprises a cross-section glass fiber reinforced plastic slurry column (5), glass fiber reinforced plastic slurry column connecting plates (8) fixed at both ends of the cross-section glass fiber reinforced plastic slurry column (5), and a plurality of slurry column stiffening ribs (7) arranged along the length direction of the cross-section glass fiber reinforced plastic slurry column (5).

5. According to claim 4, a new type of liquid coordinated damper using glass fiber reinforced plastics is characterized in that: The lateral displacement and maximum bending moment of the cross-section FRP slurry column meet the following formula requirements: Where: F max To obtain the maximum shear force at the bottom of the slurry column through test and simulation analysis; R A is the bottom reaction force of the FRP slurry column; M max Indicates the maximum bending moment at the bottom of the slurry column under the action of water flow; M A is the bending moment at the bottom of the FRP slurry column; E is the elastic modulus of FRP; L is the length of the FRP slurry column; l To coordinate the liquid height of the liquid damper; q max It indicates the lateral uniform force on the FRP slurry column under the action of water flow; I x Indicates a cross-section glass fiber reinforced plastic slurry column x Directional section moment of inertia.

6. The novel liquid coordinated damper using glass fiber reinforced plastics according to claim 4 is characterized in that: The glass fiber reinforced plastic slurry column connection plate (8) is provided with a bolt connection reserved hole (6), and the glass fiber reinforced plastic slurry column connection plate (8) and the embedded sleeve (9) are connected by the cooperation of high-strength bolts and the bolt connection reserved hole (6).

7. The novel liquid coordinated damper using glass fiber reinforced plastics according to claim 1 is characterized in that: The reinforced concrete water tank adopts C20, C25 or C30 grade concrete, the load-bearing steel bars adopt HRB400 grade steel bars, and the cross-section fiberglass slurry column adopts fiberglass material with FRP content of 42.5%, 43.7%, 44.55% or more.

8. The novel liquid coordinated damper using glass fiber reinforced plastics according to claim 1 is characterized in that: The dimensions of the reinforced concrete water tank are designed based on the functional use, the strength and deformation of the building's top floor slab.

9. According to claim 1, a new type of liquid coordinated damper using glass fiber reinforced plastics is characterized in that: The dimensions of the cross-section FRP slurry column meet the following formula requirements: Where: M x , M y is the maximum bending moment at the bottom of the slurry column obtained through tests and simulation analysis; W nx , W ny is the net section modulus of the FRP slurry column; γ x , γ y is the plastic development coefficient of the FRP slurry column section; f g is the design value of the bending strength of FRP; V is the maximum shear force at the bottom of the slurry column obtained through tests and simulation analysis; S is the gross cross-sectional area moment of the FRP slurry column; I is the moment of inertia of the gross section of the FRP slurry column; t w is the thickness of the cross-section FRP slurry column; f vg It is the design value of shear strength of FRP.

10. A novel liquid coordinated damper using glass fiber reinforced plastic according to any one of claims 1 to 9, characterized in that: The embedded sleeve strength, welded steel plate length, high-strength bolt diameter and strength should meet the following formula requirements: Where: N Ed , V Ed It is the design value of tensile and shear load of embedded sleeve; N Rd,s , V Rd,s It is the design value of tensile and shear bearing capacity of embedded sleeve; D It is the diameter of the longitudinal force-bearing steel bars of the top floor slab of the building and the reinforced concrete water tank; f t It is the tensile strength of the longitudinal stress-bearing steel bars of the top floor slab of the building and the reinforced concrete water tank; K is the stress concentration factor of double-sided fillet weld; h e is the effective height of fillet weld; l w is the calculated length of the weld; l dw The calculated length of the single-sided weld.

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