Brickwork structure energy dissipation and shock absorption reinforcing device based on hole opening

Abstract

The invention provides a masonry structure energy dissipation and shock absorption reinforcing device based on hole opening, and relates to the technical field of building structure reinforcing. The longitudinal steel supporting unit is arranged in a window opening formed in the surface of the wall body in a penetrating mode; the transverse viscous damper units are arranged in window holes formed in the surface of the wall in a penetrating mode and at the ends of the longitudinal steel supporting units; and the windows are arranged on the surfaces of the longitudinal steel supporting units. According to the invention, the destructive effect of earthquake energy on the structure can be obviously reduced, the overall rigidity and shear strength of the wall body in the window opening area are improved, and the problem of insufficient rigidity caused by opening the window opening is alleviated.

Description

Technical Field

[0001] The invention relates to the technical field of building structure reinforcement, and in particular to an energy dissipation and shock absorption reinforcement device for a masonry structure based on openings. Background Art

[0002] The energy dissipation and shock absorption reinforcement device of masonry structure is an engineering measure to strengthen the bearing capacity, durability, earthquake resistance, wind resistance or other functions of masonry structure. The purpose of reinforcement is to extend the service life of the building, ensure that it can safely and reliably withstand various loads during use, and meet new use requirements or adapt to environmental changes.

[0003] Masonry structures are prone to cracking, instability and other problems under earthquakes, especially in locations with window openings, which can easily become weak links in the structure due to insufficient wall stiffness and stress concentration.

[0004] The current reinforcement methods are mostly to strengthen the wall as a whole or to add components locally, but these methods may affect the normal use of windows, and the construction is complicated and costly. Therefore, a masonry structure energy dissipation and shock absorption reinforcement device based on openings is designed to solve the above problems. Summary of the invention

[0005] The present invention provides an energy dissipation and shock absorption reinforcement device for a masonry structure based on openings, which solves the problems raised by the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows: An embodiment of the present invention provides an energy dissipation and shock absorption reinforcement device for a masonry structure based on an opening, comprising: Wall; A longitudinal steel support unit, wherein the longitudinal steel support unit is arranged in a window hole penetrating through the wall surface; A transverse viscous damper unit, wherein the transverse viscous damper unit is arranged in a window opening penetrating through the wall surface and at an end of the longitudinal steel support unit; Windows are arranged on the surface of the longitudinal steel supporting unit.

[0007] Furthermore, the longitudinal steel support unit includes a longitudinal steel plate 1, which is installed in a window hole penetrated through the wall surface through a fixing bolt 1, wherein longitudinal steel plate 1 is installed on both sides of the window hole penetrated through the wall surface, and longitudinal steel plate 2 is installed on longitudinal steel plate 1 through a fixing bolt 4.

[0008] Through the above technical solution, the fixing bolt 1 can enable the longitudinal steel support unit to be installed as a whole in the groove of the wall.

[0009] Furthermore, transverse connecting plates are installed at both ends of the longitudinal steel plate 1, the longitudinal steel plate 2 is located between the two transverse connecting plates, and the window is installed between the two longitudinal steel plates 2.

[0010] Through the above technical solution, the second longitudinal steel plate can further increase the overall stability.

[0011] Furthermore, the transverse viscous damper unit includes a transverse connecting plate, the transverse connecting plate is installed with an angle piece through a second fixing bolt, and the angle piece is installed in a window hole penetrating through the wall surface through a third fixing bolt.

[0012] Through the above technical solution, the second fixing bolt can connect the lateral viscous damper unit and the longitudinal steel support unit.

[0013] Furthermore, a cylinder gap type viscous damping support is fixedly installed on the outer surface of the angle piece, and the end of the cylinder gap type viscous damping support away from the angle piece is connected to a transverse steel plate 1 and a transverse steel plate 2, the transverse steel plate 1 and the transverse steel plate 2 are parallel to each other, and a damping rubber body 1 is arranged between the transverse steel plate 1 and the transverse steel plate 2, and the transverse steel plate 1 and the transverse steel plate 2 are respectively provided with multiple damping rubber bodies on both side surfaces of the damping rubber body 1, and the two transverse steel plates 1 and 2 are connected via the damping rubber body 2.

[0014] Through the above technical solution, multiple damping rubber bodies 1 are connected to transverse steel plate 1 and transverse steel plate 2 to increase the horizontal shear force.

[0015] Furthermore, a strain gauge is provided at the welding point between the longitudinal steel plate 1 and the transverse connecting plate of the longitudinal steel support unit to detect the strain at the connection point. The pins at both ends of the cylinder gap viscous damping support are provided with tension and compression sensors for monitoring the axial force. The middle part of the longitudinal steel plate is provided with an acceleration sensor for monitoring the vibration acceleration. .

[0016] Furthermore, according to the adjustment range of the oil cylinder gap type viscous damping support, multiple groups of damping coefficients are randomly generated in the range of 0.1 to 0.8, and multiple groups of stiffness are generated according to the material parameters of the longitudinal steel plate 1.

[0017] Furthermore, a seismic response analysis is performed on each set of damping coefficient and stiffness, and the inter-story displacement angle, steel stress and energy dissipation coefficient are calculated based on the strain, axial force and vibration acceleration; the objective function is constructed based on the inter-story displacement angle, steel stress and energy dissipation coefficient; and the stress constraints, displacement constraints and damper constraints are set according to the material parameters.

[0018] Furthermore, the interlayer displacement angle, steel stress and energy dissipation coefficient corresponding to the minimum objective function are selected to obtain the optimal damping coefficient and the optimal stiffness; the throttle valve opening of the cylinder gap type viscous damping support is dynamically adjusted according to the optimal damping coefficient, and the stiffness of the four pairs of longitudinal steel support units is adjusted through the fixing bolts according to the optimal stiffness.

[0019] The above solution of the present invention includes at least the following beneficial effects: 1. The present invention improves the overall rigidity and shear strength of the wall in the window hole area by fixing the longitudinal steel plate 1 in the longitudinal steel support unit on the wall hole through the fixing bolt 1, and then connecting the longitudinal steel plate 2 with the longitudinal steel plate 1 through the fixing bolt 2, thereby alleviating the problem of insufficient rigidity caused by opening the window hole.

[0020] 2. Real-time monitoring of structural strain, axial force and vibration acceleration is carried out through strain gauges, tension and compression sensors and accelerometers. Combined with formula calculation and multi-group parameter analysis, the damping coefficient (adjustable in the range of 0.1~0.8) and steel support stiffness are dynamically optimized to achieve intelligent matching of seismic performance and adapt to different earthquake conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the window structure of the present invention; Figure 3 It is a schematic diagram of the structure of the longitudinal steel support unit of the present invention; Figure 4 It is a schematic diagram of the structure of the lateral viscous damper unit of the present invention.

[0022] Description of reference numerals: 1. Wall; 2. Longitudinal steel support unit; 21. Fixing bolt 1; 22. Longitudinal steel plate 1; 23. Fixing bolt 4; 24. Longitudinal steel plate 2; 25. Transverse connecting plate; 26. Fixing bolt 2; 3. Transverse viscous damper unit; 31. Angle piece; 32. Fixing bolt 3; 33. Cylinder gap type viscous damper support; 34. Transverse steel plate 1; 35. Transverse steel plate 2; 36. Damping rubber body 1; 37. Damping rubber body 2; 4. Window. DETAILED DESCRIPTION

[0023] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully conveyed to those skilled in the art.

[0024] like Figures 1 to 4As shown, an embodiment of the present invention provides an energy dissipation and shock absorption reinforcement device for a masonry structure based on an opening, comprising: Wall 1; A longitudinal steel support unit 2, wherein the longitudinal steel support unit 2 is arranged in a window hole that penetrates through the surface of the wall 1; A transverse viscous damper unit 3, which is arranged in a window opening penetrating through the surface of the wall 1 and at the end of the longitudinal steel support unit 2; Window 4 , which is arranged on the surface of the longitudinal steel supporting unit 2 .

[0025] The lateral viscous damper unit 3 is arranged on the upper and lower sides of the window opening of the wall 1, and is mainly used to dissipate the horizontal vibration energy generated by the earthquake and reduce the response of the earthquake action transmitted to the upper structure. The longitudinal steel support unit 2 is arranged on the left and right sides of the window opening of the wall 1, and is used to increase the longitudinal stiffness of the wall 1 and ensure that the stiffness of the wall 1 on both sides of the window 4 is consistent, thereby enhancing the shear strength of the wall 1 and reducing the stiffness weakening and stress concentration caused by the opening of the window opening.

[0026] like Figure 3 As shown, the longitudinal steel support unit 2 includes a longitudinal steel plate 22, which is installed in a window hole penetrated through the surface of the wall 1 through a fixing bolt 21, wherein longitudinal steel plates 22 are installed on both sides of the window hole penetrated through the surface of the wall 1, and longitudinal steel plate 22 is installed with longitudinal steel plate 24 through fixing bolt 4 23.

[0027] Two longitudinal steel plates 22 are respectively installed on both sides of the window opening penetrating through the surface of the wall 1 through fixing bolts 21, and transverse connecting plates 25 are welded and installed at both ends of the longitudinal steel plates 22.

[0028] like Figure 3 As shown, transverse connecting plates 25 are installed at both ends of the longitudinal steel plate 1 22 , the longitudinal steel plate 2 24 is located between the two transverse connecting plates 25 , and the window 4 is installed between the two longitudinal steel plates 24 .

[0029] The longitudinal steel plate 2 24 is connected to the longitudinal steel plate 1 22 via the fixing bolt 4 23 , and the distance between the fixing bolt 4 23 and the longitudinal steel plate 1 22 can be adjusted by adjusting the fixing bolt 4 23 .

[0030] like Figure 3 and Figure 4 As shown, the transverse viscous damper unit 3 includes a transverse connecting plate 25 , and the transverse connecting plate 25 is installed with an angle piece 31 through a second fixing bolt 26 . The angle piece 31 is installed in a window hole that penetrates the surface of the wall 1 through a third fixing bolt 32 .

[0031] One side surface of the corner piece 31 is connected to the transverse connecting plate 25 via a second fixing bolt 26 , and the other side surface is connected to the surface of a window hole penetrating through the surface of the wall 1 via a third fixing bolt 32 .

[0032] like Figure 4 As shown, a cylinder gap type viscous damping support 33 is fixedly installed on the outer surface of the angle piece 31, and the end of the cylinder gap type viscous damping support 33 away from the angle piece 31 is connected with a transverse steel plate 1 34 and a transverse steel plate 2 35, the transverse steel plate 1 34 and the transverse steel plate 2 35 are parallel to each other, and a damping rubber body 1 36 is arranged between the transverse steel plate 1 34 and the transverse steel plate 2 35.

[0033] One end of the damping rubber body 1 36 is connected to the cylinder gap type viscous damping support 33, and the other end is connected to the symmetrically arranged cylinder gap type viscous damping support 33. A plurality of transverse steel plates 1 34 and transverse steel plates 2 35 are respectively bonded to the two side surfaces of the damping rubber body 1 36, and the two transverse steel plates 1 34 and transverse steel plates 2 35 are bonded together through a damping rubber body 2 37.

[0034] like Figure 4 As shown, a plurality of transverse steel plates 1 34 and 2 transverse steel plates 35 are respectively provided on both side surfaces of the damping rubber body 1 36 , and the two transverse steel plates 1 34 and 2 transverse steel plates 35 are connected by a damping rubber body 2 37 .

[0035] First, a circle of masonry around the window hole is removed from the surface of the wall 1 to form an installation groove so that the device will not affect the normal installation of the window frame after being embedded. Two longitudinal steel plates 22 are installed on the left and right sides of the window hole through the fixing bolt 21, and then the longitudinal steel plate 24 is connected to the longitudinal steel plate 22 through the fixing bolt 4 23. Two corner pieces 31 are respectively installed on the upper and lower sides of the window hole through the fixing bolt 32. The longitudinal steel support unit 2 and the transverse viscous damper unit 3 are fixed together to form a frame through the fixing bolt 26 on the longitudinal steel support unit 2 and the corner piece 31 on the transverse viscous damper unit 3. The window 4 is installed in the frame, and the two sides of the window frame are fixed to the longitudinal steel plate 24 through the fixing bolt 4 23. The upper and lower sides of the window frame are fixed to the damping rubber body 2 37 through expansion bolts to ensure overall rigidity and reliability. Working principle: The lateral viscous damper unit 3 can dissipate the seismic energy input into the structure under the action of an earthquake and reduce the vibration amplitude of the masonry wall 1. The longitudinal steel support unit 2 improves the stress distribution of the wall 1 on both sides of the window opening by increasing the longitudinal stiffness of the wall 1, thereby reducing the risk of cracking or failure of the wall 1. After the installation is completed, the window 4 can be installed and used normally without affecting the building function.

[0036] The longitudinal steel plate 22 of the longitudinal steel support unit 2 and the transverse connecting plate 25 are welded together to form a strain gauge for detecting the strain at the connection. The cylinder gap viscous damping support 33 is provided with tension and compression sensors at both ends of the pin shaft to monitor the axial force The longitudinal steel plate 24 is provided with an acceleration sensor in the middle to monitor the vibration acceleration .

[0037] By formula Calculate strain , where K is the strain gauge sensitivity coefficient, is the excitation voltage, is the strain gauge output voltage. In a specific embodiment, K=2.05. .

[0038] Furthermore, according to the adjustment range of the oil cylinder gap type viscous damping support 33, multiple groups of damping coefficients are randomly generated in the range of 0.1 to 0.8, and multiple groups of stiffness are generated according to the material parameters of the longitudinal steel plate 22; The seismic response analysis is performed for each set of damping coefficient and stiffness, and the strain , axial force and vibration acceleration Calculate the inter-story displacement angle , Steel Stress and energy consumption coefficient ; Construct objective function based on inter-story displacement angle, steel stress and energy dissipation coefficient ; and set stress constraints, displacement constraints and damper constraints according to material parameters; Select the inter-story displacement angle, steel stress and energy dissipation coefficient corresponding to the minimum objective function to obtain the optimal damping coefficient and optimal stiffness; The throttle valve opening of the cylinder gap type viscous damping support 33 is dynamically adjusted according to the optimal damping coefficient, and the stiffness of the longitudinal steel support unit 2 is adjusted through the fixing bolt 23 according to the optimal stiffness.

[0039] In a more specific embodiment, by the formula Calculate steel stress; by measuring vibration acceleration Integrate to get the speed and displacement , and by the formula Calculate the interlayer displacement angle, h is the interlayer height; by the formula Calculate the energy consumption factor .

[0040] Strain gauges, tension and compression sensors, and accelerometers are used to monitor structural strain, axial force, and vibration acceleration in real time. Combined with formula calculations and multi-group parameter analysis, the damping coefficient (adjustable in the range of 0.1 to 0.8) and steel support stiffness are dynamically optimized, achieving intelligent matching of seismic performance to adapt to different earthquake conditions.

[0041] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An energy dissipation and shock absorption reinforcement device for masonry structures based on openings, characterized in that: include: Wall (1); A longitudinal steel support unit (2), wherein the longitudinal steel support unit (2) is arranged in a window hole that penetrates through the surface of the wall (1); A transverse viscous damper unit (3), wherein the transverse viscous damper unit (3) is arranged in a window opening penetrating through the surface of the wall (1) and at an end of the longitudinal steel support unit (2); A window (4), wherein the window (4) is arranged on the surface of the longitudinal steel support unit (2); The transverse viscous damper unit (3) comprises a transverse connecting plate (25), the transverse connecting plate (25) being mounted with an angle piece (31) via a second fixing bolt (26), the angle piece (31) being mounted in a window hole penetrating through the surface of the wall (1) via a third fixing bolt (32); a cylinder gap type viscous damper support (33) being fixedly mounted on the outer surface of the angle piece (31), the end of the cylinder gap type viscous damper support (33) being connected with a transverse steel plate 1 (34) and a transverse steel plate 2 (35) at a distance from the angle piece (31), the transverse steel plate 1 (34) and the transverse steel plate 2 (35) being parallel to each other, and a damping rubber body 1 (36) being arranged between the transverse steel plate 1 (34) and the transverse steel plate 2 (35).

2. The energy dissipation and shock absorption reinforcement device for masonry structures based on openings according to claim 1 is characterized in that: The longitudinal steel support unit (2) comprises a longitudinal steel plate 1 (22), wherein the longitudinal steel plate 1 (22) is installed in a window hole through the surface of the wall (1) via a fixing bolt 1 (21), wherein longitudinal steel plates 1 (22) are installed on both sides of the window hole through the surface of the wall (1), and the longitudinal steel plate 1 (22) is installed with longitudinal steel plate 2 (24) via a fixing bolt 4 (23).

3. The energy dissipation and shock absorption reinforcement device for masonry structures based on openings according to claim 2 is characterized in that: Both ends of the longitudinal steel plate 1 (22) are installed with transverse connecting plates (25), the longitudinal steel plate 2 (24) is located between the two transverse connecting plates (25), and the window (4) is installed between the two longitudinal steel plates 2 (24).

4. The energy dissipation and shock absorption reinforcement device for masonry structures based on openings according to claim 3 is characterized in that: The transverse steel plate 1 (34) and the transverse steel plate 2 (35) are respectively provided in plurality on the two side surfaces of the damping rubber body 1 (36), and the two transverse steel plates 1 (34) and the transverse steel plates 2 (35) are connected via the damping rubber body 2 (37).

5. The energy dissipation and shock absorption reinforcement device for masonry structures based on openings according to claim 4 is characterized in that: A strain gauge is provided at the welding point between the longitudinal steel plate 1 (22) and the transverse connecting plate (25) of the longitudinal steel support unit (2) for detecting the strain at the connection point. The pins at both ends of the cylinder gap type viscous damping support (33) are provided with tension and compression sensors for monitoring the axial force The middle part of the longitudinal steel plate 2 (24) is provided with an acceleration sensor for monitoring the vibration acceleration .

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