Earthquake-proof energy dissipater embedded structure and installation structure thereof

Abstract

The utility model discloses an anti-seismic energy dissipater pre-embedded structure and an installation structure thereof, the pre-embedded structure comprises a pre-embedded steel plate and a pre-embedded anchoring steel assembly, the pre-embedded anchoring steel assembly comprises anchoring long pieces and anchoring short pieces which are alternately arranged on an original design connection position, the anchoring long pieces comprise long anchoring straight ribs and short attaching straight ribs, and the long anchoring straight ribs are connected with the short attaching straight ribs. The side face of the short attaching straight rib is attached to and fixedly connected with the side face of the long anchoring straight rib, and a bent anchoring section at the bottom end of the long anchoring straight rib is formed. In the utility model, the stressed steel bars in the wall and the pre-embedded anchoring steel components are pre-arranged, and a part of long anchoring pieces are optimized into short anchoring pieces, so that the bond stress of concrete to the steel bars at the position is ensured while the anchoring stress is met, the density of the steel bars at the position is reduced, the crossing and beating of the steel bars are reduced, and the vibration of the concrete is facilitated; and the embedded part can be mounted in place at one time. The short sticking straight ribs and the long anchoring straight ribs are connected in a sticking and welding mode, the function of an original bent anchoring section is replaced, steel bars in the damping wall are prevented from being fished, and the steel bars can be directly lowered down during installation.

Description

Technical Field

[0001] This utility model belongs to the field of earthquake-resistant structures, and in particular to a pre-embedded structure for earthquake-resistant energy dissipators and its installation structure. Background Technology

[0002] Seismic energy dissipators, also known as energy-absorbing dampers or seismic dampers, are devices that dissipate or disperse seismic energy. They are typically installed in critical parts of buildings, bridges, and machinery to absorb and disperse vibrational energy during earthquakes, thereby reducing structural damage. Embedded components are parts pre-installed within concrete, walls, or other structures before concrete pouring to ensure the connection between the core energy-dissipating element of the seismic energy dissipator and the structure during subsequent construction. Embedded components are the first construction element of the entire seismic energy dissipator system and a key focus of control during the structural construction phase; their positioning and installation directly affect the construction quality of the damper. (See appendix) Figure 1 As shown, existing embedded parts are all made by welding embedded steel bars onto embedded steel plates in the factory, reserving the anchorage length and setting spacing of the embedded steel bars according to the specifications, and installing them on-site in the damping wall at the location of the damper during structural construction. The damping wall is generally a cantilever wall or a restrained edge member.

[0003] The installation of the embedded parts for this type of damper involves two different installation sequences:

[0004] First, install the embedded parts, then tie the reinforcing steel bars of the damping wall. Because the embedded steel bars are densely packed, they intersect with the stirrups of the damping wall, making it impossible to tie the stirrups.

[0005] Second, the reinforcing steel bars of the damping wall are tied first, and then the embedded parts are installed. Due to the influence of the position of the main reinforcement and the 135° hook position of the stirrups, and the fact that the ends of the embedded reinforcement need to be anchored to the damping wall concrete, the embedded reinforcement cannot be inserted smoothly, making it impossible to install the embedded parts. If installation is necessary, the stirrups at this point must be disconnected and then welded. Even if a separate installation method is used for the embedded parts, that is, the embedded plate and the embedded reinforcement are installed separately and then welded together on site, it greatly increases the on-site welding work and the positioning of the embedded reinforcement. This approach not only affects the quality of the project but also the construction progress.

[0006] Meanwhile, the thickness of damping walls where traditional embedded parts are located is mostly 200mm. Due to the narrow wall thickness and the overly dense arrangement of the reinforcing bars of the damping wall and the embedded parts, the concrete of the damping wall is not easy to vibrate. Large gaps often form at the contact points between the embedded parts and the concrete, resulting in poor overall forming quality of the embedded parts and the damping wall. Utility Model Content

[0007] The purpose of this utility model is to provide a pre-embedded structure for seismic energy dissipators and its installation structure. It aims to solve the technical problem that the pre-embedded parts of existing seismic energy dissipators are difficult to install due to the obstruction of steel bars between them and the damping wall. It also aims to solve the technical problem that the existing damping walls have poor concrete forming quality due to the difficulty in vibration caused by the dense arrangement of steel bars.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] An embedded structure for a seismic energy dissipator includes an embedded steel plate and embedded anchoring steel components. The embedded steel plate includes a connecting side for connecting to the seismic energy dissipator and an anchoring side for connecting to the structure. The anchoring side of the embedded steel plate has pre-designed connection positions for the embedded anchoring components arranged in a straight row at intervals along the length of the embedded steel plate. The top ends of each embedded anchoring steel component are respectively fixedly connected to the pre-designed connection positions on the anchoring side.

[0010] The pre-embedded anchoring steel assembly includes alternating anchoring long members and anchoring short members at the original design connection positions, with the length of the anchoring short members being shorter than the length of the anchoring long members.

[0011] The anchoring member includes a long anchoring straight bar and a short attached straight bar. The short attached straight bar is arranged parallel to the long anchoring straight bar. The bottom end face of the short attached straight bar is flush with the bottom end face of the long anchoring straight bar. The side of the short attached straight bar is tightly attached to and fixedly connected to the side of the long anchoring straight bar. The short attached straight bar forms the anchoring section at the bottom end of the long anchoring straight bar.

[0012] Each embedded steel plate has two rows of embedded anchoring steel components, with the corresponding anchoring long and anchoring short components arranged in the same way on the two rows of embedded anchoring steel components.

[0013] The original design used equally spaced connection points, with the spacing between adjacent anchor long pieces or adjacent anchor short pieces being twice the original design connection point spacing.

[0014] The diameter of the short anchoring straight bar is the same as the diameter of the long anchoring straight bar.

[0015] The projections of the short and long anchoring straight bars on the same anchoring member onto the embedded steel plate are on the same straight line.

[0016] The long anchoring straight bar is plug-welded to the pre-embedded steel plate, and the side of the short attached straight bar is welded to the side of the long anchoring straight bar on both sides. The anchoring short part is a stud welded to the pre-embedded steel plate.

[0017] An installation structure including a pre-embedded structure for a seismic energy dissipator, and a damping wall embedded in the pre-embedded structure for the seismic energy dissipator, wherein the damping wall is provided with internal reinforcing steel bars, and the arrangement of the internal reinforcing steel bars is staggered from the arrangement of the anchoring long members.

[0018] The reinforcing bars inside the wall are set around the pre-embedded anchoring steel components, including horizontal stirrups and vertical main bars. The vertical main bars are alternately arranged along the length direction at the edge, and the ends of the vertical main bars and the positions near the anchoring short members are provided with bent hook edges to avoid the anchoring short members.

[0019] The damping wall includes an upper damping wall and a lower damping wall. The bottom surface of the upper damping wall is provided with an inverted upper seismic energy dissipation device embedded structure, and the top surface of the lower damping wall is provided with a lower seismic energy dissipation device embedded structure. The seismic energy dissipation device is fixedly connected between the embedded steel plates in the upper and lower seismic energy dissipation device embedded structures.

[0020] The seismic energy dissipator is either a viscous damper or a metal damper, and the metal damper is a corrugated steel plate wall.

[0021] Compared with the prior art, this utility model has the following features and beneficial effects:

[0022] This utility model addresses the quality problems encountered during the installation of traditional embedded parts by optimizing the embedded parts themselves. This effectively improves the installation quality of damper embedded parts during construction, shortens the construction period and reduces construction costs compared to traditional embedded part installation, and also improves construction convenience and efficiency.

[0023] This utility model pre-arranges the reinforcing steel bars and pre-embedded anchoring steel components within the original damping wall at the original design connection position on the pre-embedded steel plate of the pre-embedded component. The anchoring long and anchoring short components of the pre-embedded anchoring steel components are alternately set, and some anchoring long components, i.e., reinforcing bars, are optimized into anchoring short components, i.e., studs. While meeting the anchoring force requirements, it ensures the bond strength between the concrete and the reinforcing bars at this location, ensuring a tight bond between the concrete and the pre-embedded component. It also reduces the density of reinforcing bars at this location, effectively reducing the cross-interference of reinforcing bars, facilitating concrete vibration, and ensuring that the pre-embedded component can be installed in place at this location in one go.

[0024] This utility model also redesigns the original bent anchoring section at the anchoring end of the anchoring long member into a design where a short straight bar is directly welded to the anchoring end of the long anchoring straight bar, replacing the function of the original bent anchoring section. This ensures the anchoring length of the steel bar while maintaining the overall anchoring long member to avoid bending sections, preventing it from interfering with or hooking with the steel bars in the damping wall. It can be directly lowered during installation. Attached Figure Description

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Figure 1 This is a structural schematic diagram of embedded parts in existing technology.

[0027] Figure 2 This is a schematic diagram of the application state of Embodiment 1 of this utility model.

[0028] Figure 3 yes Figure 2 A schematic diagram of the AA cross-section.

[0029] Figure 4 yes Figure 2 Detailed structural drawings of the embedded parts.

[0030] Figure 5 yes Figure 4 A top-view structural diagram.

[0031] Figure 6 This is a schematic diagram of the application state of Embodiment 2 of this utility model.

[0032] Figure 7 yes Figure 6 BB cross-sectional diagram.

[0033] Figure 8 It is a diagram showing the layout of the reinforcing steel bars and pre-embedded anchoring steel components within the wall.

[0034] Figure 9 yes Figure 8 A schematic diagram of the planar structure.

[0035] Figure reference numerals: 1 - Embedded steel plate, 2 - Anchorage long member, 21 - Long anchorage straight bar, 22 - Short attached straight bar, 3 - Anchorage short member, 4 - Upper damping wall, 5 - Lower damping wall, 6 - Seismic energy dissipator, 61 - Viscous damper, 62 - Metal damper, 7 - Embedded anchorage steel assembly, 8 - Reinforcing steel bar inside the wall, 81 - Horizontal stirrup, 82 - Vertical main reinforcement, 83 - Bent hook edge. Detailed Implementation

[0036] See Example 1 Figure 2-5 As shown, the damping wall is a cantilever wall, and the seismic energy dissipator 6 is a viscous damper 61. The damping wall includes an upper damping wall 4 and a lower damping wall 5. A seismic energy dissipator pre-embedded structure is embedded within the damping wall. An inverted upper seismic energy dissipator pre-embedded structure is provided on the bottom surface of the upper damping wall 4, and a lower seismic energy dissipator pre-embedded structure is provided on the top surface of the lower damping wall 5. The seismic energy dissipator 6 is fixedly connected between the pre-embedded steel plates 1 within the upper and lower seismic energy dissipator pre-embedded structures.

[0037] This pre-embedded structure for seismic energy dissipators includes a pre-embedded steel plate 1 and pre-embedded anchoring steel components 7. The pre-embedded steel plate 1 includes a connection side that connects to the seismic energy dissipator 6 and an anchoring side that connects to the structure. The anchoring side of the pre-embedded steel plate 1 has pre-embedded anchoring components arranged in a straight row at intervals along the length of the pre-embedded steel plate 1, as originally designed. In this case, the diameter of the pre-embedded steel bars on the original pre-embedded parts at the original design connection positions is 12mm, and the spacing is 60mm. That is, the original design connection spacing is 60mm.

[0038] In this embodiment, the embedded steel plate is a rectangular steel plate, Q335B, 20mm thick. Its length is adapted to the length of the cantilever wall and the viscous damper 61, and its width is the same as the width of the cantilever wall, 200mm. The length of the embedded steel plate 1 is greater than the length of the viscous damper 61 but less than the length of the cantilever wall. The width of the cantilever wall is 1450mm, the length of the embedded steel plate 1 is 1180mm, and the length of the connecting plate of the viscous damper 61 is 992mm. The embedded steel plate 1 is centrally positioned on the cantilever wall, with a 135mm margin on both sides. The connecting plate of the viscous damper 61 is also centrally positioned and fixedly connected to the embedded steel plate 1. The connecting side surface of the embedded steel plate 1 is flush with the connecting side surface of the cantilever wall.

[0039] The top ends of the pre-embedded anchoring steel components 7 are respectively fixedly connected to the original design connection positions on the anchoring side. After optimization, the pre-embedded steel bars on the original pre-embedded parts are optimized into a combination of steel bars and studs, arranged alternately. That is, the pre-embedded anchoring steel components 7 include anchoring long components 2 and anchoring short components 3 alternately arranged at the original design connection positions. Each pre-embedded steel plate 1 has two rows of pre-embedded anchoring steel components 7, with a spacing of 80mm between the two rows and a distance of 60mm between the long side of each row of pre-embedded anchoring steel components 7 and the pre-embedded steel plate 1. The arrangement of the corresponding anchoring long components 2 and anchoring short components 3 on the two rows of pre-embedded anchoring steel components 7 is the same. The original design connection positions are set at equal intervals, and the spacing between adjacent anchoring long components 2 or adjacent anchoring short components 3 is equal to twice the original design connection position spacing. That is, in this embodiment, the spacing between anchoring long components 2 and the spacing between adjacent anchoring short components 3 are both 120mm. The outermost part of the pre-embedded anchoring steel assembly 7 is the anchoring long member 2, and the distance between the anchoring long member 2 and the edge of the pre-embedded steel plate 1 is 50mm.

[0040] The anchoring member 2 includes a long anchoring straight bar 21 and a short attached straight bar 22. The short attached straight bar 22 is arranged parallel to the long anchoring straight bar 21. The projections of the short attached straight bar 22 and the long anchoring straight bar 21 on the embedded steel plate 1 are on the same straight line. The bottom end face of the short attached straight bar 22 is flush with the bottom end face of the long anchoring straight bar 21. The side face of the short attached straight bar 22 is tightly attached to and fixedly connected to the side face of the long anchoring straight bar 21. The short attached straight bar 22 forms a bent anchor section at the bottom end of the long anchoring straight bar 21, and the bent anchor hook of the existing embedded steel bar is transformed into a mechanical anchoring that is fitted and fixed. In this embodiment, the long anchoring straight bar 21 is a 20mm diameter HRB400 steel bar. The long anchoring straight bar 21 is plug-welded to the pre-embedded steel plate 1. The side of the short attached straight bar 22 is welded to the side of the long anchoring straight bar 21 on both sides. The diameter of the short attached straight bar 22 is the same as the material and diameter of the long anchoring straight bar 21.

[0041] The length of the anchoring short member 3 is shorter than the length of the anchoring long member 2. In this embodiment, the anchoring short member 3 is a stud welded to the embedded steel plate 1, and its model is A19.

[0042] See Figure 8-9As shown, the damping wall is equipped with internal reinforcing bars, and the arrangement of the internal reinforcing bars is staggered from that of the anchoring long members 2. The internal reinforcing bars 8 are set around the pre-embedded anchoring steel assembly 7, including horizontal stirrups 81 and vertical main bars 82. The vertical main bars 82 are alternately arranged along the length direction at the edge, and the ends of the vertical main bars 82, near the anchoring short members 3, are provided with bent hook edges 83 that avoid the anchoring short members 3.

[0043] See Example 2 Figure 4-7 As shown, unlike in Embodiment 1, the damping wall is a constrained edge member, the seismic energy dissipator 6 is a metal damper 62, the metal damper 62 is a corrugated steel plate wall, and the upper and lower ends of the corrugated steel plate wall are fixedly connected to the embedded steel plates 1 in the embedded structure of the upper and lower seismic energy dissipator, respectively. In this embodiment, the connection is made by welding.

[0044] The construction process of this utility model is as follows:

[0045] Step 1: Based on the location of the pre-embedded structure of the seismic energy dissipator, the reinforcing steel bars in the damping wall are pre-arranged during the detailed design process so that they can be staggered with the position of the anchoring long piece 2 in the pre-embedded anchoring steel component 7 to avoid conflict.

[0046] Step 2: Bind the reinforcing steel bars inside the damping wall according to the detailed design;

[0047] Step 3: Prefabricate the embedded structure of the seismic energy dissipator according to the detailed design;

[0048] Step 4: Insert the pre-embedded anchor steel component 7 of the seismic energy dissipator pre-embedded structure into the reinforcing steel of the damping wall according to the design position; at this time, the pre-embedded anchor steel component 7 is staggered from the reinforcing steel in the damping wall.

[0049] Step 5: Pour the concrete for the damping wall until the concrete surface is flush with the surface of the connection end of the embedded steel plate 1.

[0050] Step six: The bottom surface of the connecting end of the pre-embedded steel plate 1 of the upper damping wall 4 is fixedly connected to the top of the seismic energy dissipator 6, and the top surface of the connecting end of the pre-embedded steel plate 1 of the lower damping wall 5 is fixed to the bottom of the seismic energy dissipator 6.

Claims

1. A pre-embedded structure for a seismic energy dissipator, characterized in that: The system includes a pre-embedded steel plate (1) and pre-embedded anchoring steel components (7). The pre-embedded steel plate (1) includes a connection side connected to the seismic energy dissipator (6) and an anchoring side connected to the structure. The anchoring side of the pre-embedded steel plate (1) has pre-embedded anchoring components arranged in a straight row at intervals along the length of the pre-embedded steel plate (1). The top of each pre-embedded anchoring steel component (7) is fixedly connected to the pre-embedded anchoring component on the anchoring side. The pre-embedded anchoring steel assembly (7) includes anchoring long members (2) and anchoring short members (3) alternately arranged at the original design connection position. The length of the anchoring short member (3) is shorter than the length of the anchoring long member (2). The anchoring long member (2) includes a long anchoring straight bar (21) and a short attached straight bar (22). The short attached straight bar (22) is arranged parallel to the long anchoring straight bar (21). The bottom end face of the short attached straight bar (22) is flush with the bottom end face of the long anchoring straight bar (21). The side of the short attached straight bar (22) is closely attached to and fixedly connected to the side of the long anchoring straight bar (21). The short attached straight bar (22) forms the anchoring section at the bottom end of the long anchoring straight bar (21).

2. The pre-embedded structure for seismic energy dissipation according to claim 1, characterized in that: Each embedded steel plate (1) is provided with two rows of embedded anchor steel components (7) in the front and back. The corresponding anchor long parts (2) and anchor short parts (3) on the two rows of embedded anchor steel components (7) are arranged in the same way.

3. The pre-embedded structure for the seismic energy dissipator according to claim 1, characterized in that: The original design of the connection positions was to be set at equal intervals, and the spacing between adjacent anchor long pieces (2) or adjacent anchor short pieces (3) was equal to twice the original design spacing of the connection positions.

4. The earthquake-resistant energy dissipator pre-embedded structure according to claim 1, characterized in that: The diameter of the short straight bar (22) is the same as the diameter of the long anchoring straight bar (21).

5. The pre-embedded structure for seismic energy dissipation according to claim 1, characterized in that: The projections of the short straight bar (22) and the long straight bar (21) on the embedded steel plate (1) of the same anchoring long member (2) are on the same straight line.

6. The pre-embedded structure for the seismic energy dissipator according to claim 1, characterized in that: The long anchoring straight bar (21) is plug-welded to the pre-embedded steel plate (1), and the side of the short attached straight bar (22) is welded to the side of the long anchoring straight bar (21) on both sides. The anchoring short piece (3) is a stud welded to the pre-embedded steel plate (1).

7. An installation structure comprising the pre-embedded structure of the seismic energy dissipator as described in any one of claims 1-6, characterized in that: It also includes a damping wall with a pre-embedded structure for the seismic energy dissipator, and the damping wall is provided with internal reinforcing steel bars (8), the arrangement of the internal reinforcing steel bars (8) is staggered from the arrangement of the anchoring long members (2).

8. The installation structure of the pre-embedded seismic energy dissipator according to claim 7, characterized in that: The reinforcing steel bars (8) inside the wall are set around the pre-embedded anchoring steel assembly (7), including horizontal stirrups (81) and vertical main bars (82). The vertical main bars (82) are alternately set at the edge along the length direction, and the ends of the vertical main bars (82) and the positions near the anchoring short pieces (3) are provided with bent hook edges (83) that avoid the anchoring short pieces (3).

9. The installation structure of the pre-embedded seismic energy dissipator according to claim 7, characterized in that: The damping wall includes an upper damping wall (4) and a lower damping wall (5). The bottom surface of the upper damping wall (4) is provided with an inverted upper seismic energy dissipator pre-embedded structure, and the top surface of the lower damping wall (5) is provided with a lower seismic energy dissipator pre-embedded structure. The seismic energy dissipator (6) is fixedly connected between the pre-embedded steel plates (1) in the upper and lower seismic energy dissipator pre-embedded structures.

10. The installation structure of the pre-embedded seismic energy dissipator according to claim 9, characterized in that: The seismic energy dissipator (6) is a viscous damper (61) or a metal damper (62), and the metal damper (62) is a corrugated steel plate wall.

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