Building shock insulation rubber support
By adopting a combination design of rib mesh structure and connectors in building seismic isolation rubber support, the problem of weakening of support connection strength in the existing technology is solved, and higher support strength and shear resistance are achieved, which improves the construction. The earthquake resistance of objects.
Patent Information
- Application Number
- CN202420538856.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-03-19
AI Technical Summary
During the earthquake resistance process of existing building seismic isolation support, the place where the two end support and the rubber seismic isolation parts are connected is under a large pressure, resulting in a weakening of the connection strength and affecting the support strength of the entire building rubber seismic isolation support.
A building seismic isolation rubber support was designed, using a combination of rib mesh structure and connectors. Through the optimization design of rib mesh structure and the casting molding of connectors, the shear resistance of the entire pier structure is enhanced, and the rubber is used. The tight fit of the shock insulation parts and the pier structure improves the connection strength.
It effectively improves the support strength and shear resistance of building earthquake isolation rubber support, extends its service life, and enhances the earthquake resistance of the building.
Smart Images
Figure CN222435585U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building seismic isolation, in particular to a building seismic isolation rubber bearing. Background Art
[0002] Building rubber seismic isolation bearings are seismic isolation structures installed between the upper building and the foundation. Building rubber seismic isolation bearings realize a soft connection between the bottom building and the superstructure, which can effectively isolate most vibrations and have a good performance in the protection of buildings. Especially when an earthquake occurs, it can offset about 80% of the seismic energy. Therefore, building rubber seismic isolation bearings can not only achieve good building support effects, but also have good seismic isolation protection performance.
[0003] However, during the earthquake resistance process, the existing seismic isolation bearings are subjected to greater pressure at the connection points between the two end bearings and the rubber seismic isolation parts. The connection strength of the connection parts is easily weakened during long-term use, which affects the supporting strength of the entire building rubber seismic isolation bearing. Therefore, it is necessary to propose a building seismic isolation rubber bearing with better supporting strength to solve the above problems. Utility Model Content
[0004] The main purpose of the utility model is to provide a building seismic isolation rubber bearing, which aims to solve the problem that during the earthquake resistance process of the existing seismic isolation bearings, the pressure at the connection points between the two end bearings and the rubber seismic isolation parts is relatively large, and the supporting performance of the entire building rubber seismic isolation bearing is easily affected due to the weakening of the connection strength between the bearings and the rubber seismic isolation parts.
[0005] In order to achieve the above-mentioned purpose, the building seismic isolation rubber bearing proposed by the utility model comprises:
[0006] A pier member, comprising an upper pier and a lower pier, wherein the upper pier and the lower pier both comprise a rib mesh structure and a connecting member, wherein the rib mesh structure is cast with concrete to form a pier body, wherein two connecting members are respectively arranged at opposite ends of the two pier bodies, wherein one end of the connecting member is correspondingly connected to the rib mesh structure in the pier body, and the other end of the connecting member is arranged outside the pier body; and,
[0007] The two ends of the rubber vibration isolator are fixedly attached between the exposed ends of the two connecting members by bolts to absorb the vibration on the two pier bodies.
[0008] Preferably, the rib mesh structure comprises:
[0009] A plurality of main bars, each of which is U-shaped and includes a horizontal portion and two vertical portions, the U-shaped openings of the plurality of main bars in the two pier bodies are all upwardly disposed, and the horizontal portions of the plurality of main bars are perpendicularly disposed on a horizontal plane to enclose the plurality of main bars into a square bar structure with an upper end opening; and,
[0010] The stirrup structure includes multiple outer stirrups and multiple inner stirrups. The multiple outer stirrups are evenly spaced and connected to the outer sides of the multiple vertical parts in the vertical direction. Multiple inner stirrups perpendicular to each other are arranged on one outer stirrup at the same vertical height. The two ends of the multiple inner stirrups are connected to the multiple vertical parts in the horizontal direction.
[0011] Preferably, the connecting member comprises:
[0012] A plurality of first steel bars are installed vertically and evenly at intervals on the square steel bar structure;
[0013] A positioning plate is installed on an upward end of the plurality of first steel bars, and the positioning plate is provided with a plurality of mounting holes; and
[0014] A plurality of sleeve assemblies, wherein the sleeve assemblies include anchor bars and sleeves, one end of the anchor bars being fixedly connected to one end of the sleeve, a plurality of the sleeves being arranged corresponding to a plurality of the mounting holes, and the anchor bars corresponding to the plurality of the sleeves being fixedly connected to the square rib structure.
[0015] Preferably, the top surfaces of the multiple sleeves are flush with the upper end surface of the positioning plate, and the end surface of the concrete is 3 mm higher than the upper end surfaces of the multiple sleeves, the spacing between two laterally adjacent vertical portions is 60 mm, and the distance between the two outer stirrups is 80 mm.
[0016] Preferably, a casting hole is also provided in the middle of the positioning plate.
[0017] Preferably, the rubber shock isolator comprises:
[0018] a rubber body, wherein the rubber body is cylindrical; and
[0019] Two flange connection parts are respectively arranged on the two end surfaces of the rubber body, and a plurality of threaded mounting holes are arranged on the flange connection parts corresponding to the plurality of sleeves, and the corresponding sleeves are fixedly connected to the mounting holes by the bolts.
[0020] Preferably, the bolts are set to be 8.8 grade common bolts.
[0021] Preferably, a protective structure is provided between opposite ends of the two pier bodies to protect the rubber seismic isolation member.
[0022] Preferably, the protective structure comprises:
[0023] A rock wool sandwich panel is installed between two opposite ends of the two pier bodies corresponding to the outer periphery of the rubber body; and
[0024] A protective net is arranged on the outside of the rock wool sandwich panel, and two ends of the protective net are respectively fixedly connected to the two pier bodies.
[0025] Preferably, a metal lead is provided between the two pier bodies to connect them.
[0026] In the technical solution of the utility model, in order to make the internal component structure of the entire reinforcement mesh structure relatively uniform and to make the entire reinforcement mesh structure more stable, the reinforcement mesh structure in the upper and lower piers is optimized in this solution, and multiple main reinforcements are fixed with a multi-layer fixed structure to form a square reinforcement body structure with an opening on the top. The square reinforcement body structure ensures the accuracy of the shape and size of the entire square reinforcement body structure on the one hand, and ensures the uniformity of its internal structure on the other hand, which can further improve its internal connection strength. At the same time, one end of the connecting piece is first connected to the square reinforcement body structure, and then cast inside it at one time, which can effectively ensure the overall strength of the connecting piece. After the rubber seismic isolation piece is tightly fitted and installed on the side wall of the pier structure, the connection strength between the rubber seismic isolation piece and the connecting piece can be effectively guaranteed, further improving the shear resistance of the entire pier structure. Therefore, compared with the traditional seismic pier structure, the structure of this solution is more reasonable and has better mechanical properties. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0028] Figure 1 A schematic diagram of the three-dimensional structure of the building seismic isolation rubber bearing provided by the utility model;
[0029] Figure 2 for Figure 1 Partial structural diagram of the internal reinforcement network structure;
[0030] Figure 3 for Figure 1 Schematic diagram of the installation structure of the middle sleeve;
[0031] Figure 4 for Figure 1Top view of the square rib structure;
[0032] Figure 5 for Figure 1 Top view of the center positioning plate structure.
[0033] Description of Figure Numbers:
[0034]
[0035]
[0036] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0038] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0039] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0040] Building rubber seismic isolation bearings are seismic isolation structures installed between the upper building and the foundation. Building rubber seismic isolation bearings realize a soft connection between the bottom building and the superstructure, which can effectively isolate most vibrations and have a good performance in the protection of buildings. Especially when an earthquake occurs, it can offset about 80% of the seismic energy. Therefore, building rubber seismic isolation bearings can not only achieve good building support effects, but also have good seismic isolation protection performance.
[0041] During the earthquake resistance process, the existing seismic isolation bearings are subjected to greater pressure at the connection points between the two end bearings and the rubber seismic isolation parts, which can easily affect the supporting performance of the rubber seismic isolation bearings of the entire building due to the weakening of the connection strength between the bearings and the rubber seismic isolation parts.
[0042] In order to solve the above problems, the utility model proposes a building seismic isolation rubber bearing. Figures 1 to 5 The present invention is a structural schematic diagram of an embodiment of the building seismic isolation rubber bearing provided by the present invention.
[0043] Please refer to Figures 1 to 5 The utility model proposes a building seismic isolation rubber bearing 1000, comprising two piers in the upper and lower directions, and a rubber seismic isolation member 2 arranged between an upper pier 11 and a lower pier 12, wherein the lower pier 12 is connected to the lower building, generally connected to the underlying structure of the building, and the upper pier 11 is generally connected to the bottom crossbeam of the building. The overall structure mainly absorbs the vibration on the upper pier 11 and the lower pier 12 through the rubber seismic isolation member 2, thereby increasing the seismic resistance of the entire building. The upper pier 11 and the lower pier 12 are both made of concrete 6. In order to increase the overall strength of the two piers, corresponding rib mesh structures 13 are arranged in the concrete 6 structures of the upper pier 11 and the lower pier 12 to form a pier body with higher strength (not marked in the figure). Connectors 14 are provided on the opposite ends of the two pier bodies in the vertical direction to fix the rubber seismic isolation member 2. In order to increase the overall strength of the entire connecting member 14, one end of the connecting member 14 is fixedly connected to the rib mesh structure 13. The physical properties of the connecting member 14 are enhanced by the rib mesh mechanism and the overall strength of the concrete 6 after solidification. One end of the connecting member 14 is exposed to facilitate the fixed installation of the rubber seismic isolation member 2.
[0044] In order to make the internal structure of the entire rib mesh structure 13 relatively uniform and to make the entire rib mesh structure 13 more stable, in this embodiment, Figure 2 and Figure 5As shown, the U-shaped openings of the plurality of main reinforcements 1311 are all arranged upward, and the plurality of horizontal portions 1311a located below are vertically connected to each other, so as to enclose the plurality of main reinforcements 1311 into a square reinforcement body structure 131 with an opening at the top, and the openings of the square reinforcement body structures 131 in the two pier bodies are all arranged upward, so as to facilitate the pouring operation during the construction process. During specific construction, the horizontal parts 1311a of the multiple main bars 1311 are generally connected to the steel bar body in the building structure. In order to ensure the size of the reinforcement mesh structure 13 and increase the connection performance between the multiple main bars 1311 in the outermost layer, the multiple vertical parts 1311b in the square reinforcement structure 131 are first limited and fixed by the multiple outer stirrups 1312. Specifically, the multiple outer stirrups 1312 are evenly installed in the vertical direction, and then the multiple outer stirrups 1312 are fixedly connected to the multiple vertical parts 1311b respectively. After the outer stirrups 1312 are fixed, a plurality of mutually perpendicular internal stirrups 1313 are provided on each layer of the outer stirrups 1312, and the two ends of the internal stirrups 1313 are connected to the multiple vertical parts 1311b in the horizontal direction. Specifically, Figure 2 As shown, one end of the internal stirrup 1313 connected to the outer stirrup 1312 can fix multiple vertical parts 1311b at the same time. The specific situation can be targetedly fixed according to the specifications of the pier body. In the above embodiment, on each layer of the outer stirrup 1312 in the vertical direction, multiple mutually perpendicular internal stirrups 1313 are provided to fix the main reinforcement 1311, wherein the spacing between two horizontally adjacent vertical parts 1311b is 60mm, and the distance between two outer stirrups 1312 is 80mm. The specific values need to be determined according to the specific size specifications of the pier member 1. In this embodiment, such a setting ensures the accuracy of the shape and size of the entire square reinforcement structure 131 on the one hand, and ensures the uniformity of its internal structure on the other hand, which can further improve its internal connection strength.
[0045] One end of the connector 14 is fixed to the square reinforcement structure 131 and is formed inside the concrete 6 by pouring, so that it has good shear resistance in the horizontal direction. Specifically, a plurality of first steel bars 141 (diameter should not be less than 10 mm) are welded on the square reinforcement structure 131 in advance. The top elevation of the first steel bars 141 is the design elevation of the lower pier 12 (column). Note that the top surface of the first steel bars 141 must be cut flat. Use a level ruler to check whether the plurality of first steel bars 141 are flat. Place the positioning plate 144 on the top surface of the plurality of first steel bars 141. Use a level ruler to check the level of the positioning plate 144 again. The next step of construction can only be carried out after it is qualified. If there is a large deviation in the levelness, it should be checked and corrected to be qualified. The center line of the positioning plate 144 coincides with the center line of the lower pier 12 in the plane. Generally, there is no eccentricity of the positioning plate 144. Before installation, the center line of the positioning plate 144 is popped out, and the center line position of the lower pier 12 is determined by using a cross engineering line pull-through line or an infrared instrument. The positioning plate 144 is placed on the top surface of the first steel bar 141, and the position of the positioning plate 144 is adjusted. The plane position of the positioning plate 144 can be determined by coinciding the cross center line on the positioning plate 144 with the hung cross engineering line. The diagonal horizontality of the positioning plate 144 is checked by a spirit level. When the bubble of the spirit level is in the middle, the horizontality of the positioning plate 144 is qualified. After the axis (center line) and elevation control of the positioning plate 144 meet the requirements, the anchor bars 142 are inserted into the square bar structure 131 one by one, and connected and fixed to the positioning plate 144 with fixing bolts. After fixing, the elevation, plane position, and horizontality of the positioning plate 144 are checked, re-measured, and recorded. Check whether the top surface of the sleeve 143 is flush with the positioning plate 144 and whether the anchor bar 142 is vertical. If qualified, the first steel bar 141 is spot welded to the square bar structure 131 at the upper and lower points, or stirrups are made separately to tie the anchor bar 142 to the square bar structure 131.
[0046] After the sleeve 143 is fixed, the pier body is cast and formed by pouring the concrete 6 at one time. The concrete 6 slurry is put into the mold at the pouring hole 1441 in the middle of the positioning plate 144. The concrete 6 slurry is vibrated and exhausted. During the vibration process, it is strictly forbidden to collide with the positioning plate 144 and the anchor bar 142. It is forbidden to step directly on the positioning plate 144 to vibrate, so as to prevent deviations in the axis, elevation and horizontality, which will affect the installation quality. The surface of the concrete 6 is processed, polished and checked for flatness with a spirit level, so that the surface of the concrete 6 of the pier body is slightly higher than the top surface of the sleeve 143 by 2mm to 3mm, and then the surface of the pier body is remeasured and recorded, and the remeasurement content includes elevation, center position and levelness. The end surface of the upper pier 11 is treated by the above method, which can ensure the levelness of the installation surface of the upper pier 11 as much as possible. Not only can the rubber seismic isolation component 2 be fully fitted with the installation surface of the upper pier 11 when installing the rubber seismic isolation component 2 to ensure the installation tightness between the two, but also the levelness of the end surface of the pier can be ensured, so that when vibration occurs, the rubber seismic isolation component 2 can have a better seismic isolation effect.
[0047] When the lower pier 12 is relatively high, it is recommended to use secondary grouting for construction. Secondary grouting construction requirements: the concrete 6 is poured to the bottom of the positioning plate 144, the positioning plate 144 is removed, the concrete 6 on the top surface of the lower pier 12 is chiseled off by 50mm, and the positioning plate 144 is installed for the second time. Use high-strength grouting material with good fluidity, slight expansion and no shrinkage for secondary grouting. The strength grade of the grouting material should be one level higher than the original strength grade of the lower pier 12. The grouting material should be tested before formal grouting, and the grouting process should be determined based on the test results.
[0048] In addition, it can be imagined that the casting operation of the upper pier 11 is similar to the construction operation method of the lower pier 12. After the rubber seismic isolation component 2 is installed on the lower pier 12, a mold is set up on the outside of the square reinforcement structure 131. The square reinforcement structure 131 corresponding to the upper pier 11 is also open at the upper end, and grouting is performed from the upper end opening of the square reinforcement structure 131.
[0049] The mechanical properties corresponding to the different sizes of some of the rubber bodies 21 have corresponding parameter comparisons in the prior art. In the actual selection process, the selection can be made according to the specific conditions of the building, which will not be described in detail here.
[0050] Specifically, during installation, the fixing bolts at the end of the sleeve 143 are removed, and then the rubber seismic isolation component 2 is hoisted to the upper surface of the upper pier 11, and the threaded mounting holes 221 on the flange connection part 22 are adjusted to correspond to the position of the sleeve 143. Finally, the flange connection part 22 is connected to the sleeve 143 through the bolts 3 (8.8 grade ordinary bolts). Note that after the installation is completed, ensure that the flange connection part 22 is in close contact with the surface of the pier body.
[0051] In order to effectively extend the service life of the rubber seismic isolation member 2, it is necessary to protect it. The protection structure 4 is arranged between the opposite ends of the two pier bodies.
[0052] Specifically, a layer of rock wool sandwich panel 41 is first arranged between the two pier bodies, and the rock wool sandwich panel 41 is covered on the outside of the rubber body 21 to provide fire protection. In addition, a protective net 42 is provided between the ends of the two pier bodies, and the end of the protective net 42 can be detachably installed at one end of the pier body to enclose the middle area of the two pier bodies, thereby further protecting the rubber seismic isolation member 2. It can be imagined that the protective net 42 can be further provided as a waterproof and fireproof shielding material.
[0053] In addition, a metal lead 5 is provided between the two pier bodies to connect them and is used for grounding the upper pier 11 .
[0054] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A building seismic isolation rubber bearing, characterized in that: include: A pier member, comprising an upper pier and a lower pier, wherein the upper pier and the lower pier both comprise a rib mesh structure and a connecting member, wherein the rib mesh structure is cast with concrete to form a pier body, wherein two connecting members are respectively arranged at opposite ends of the two pier bodies, wherein one end of the connecting member is correspondingly connected to the rib mesh structure in the pier body, and the other end of the connecting member is arranged outside the pier body; and, The two ends of the rubber vibration isolator are fixedly attached between the exposed ends of the two connecting members by bolts to absorb the vibration on the two pier bodies.
2. The building seismic isolation rubber bearing according to claim 1, characterized in that: The rib mesh structure comprises: A plurality of main bars, each of which is U-shaped and includes a horizontal portion and two vertical portions, the U-shaped openings of the plurality of main bars in the two pier bodies are all upwardly disposed, and the horizontal portions of the plurality of main bars are perpendicularly disposed on a horizontal plane to enclose the plurality of main bars into a square bar structure with an upper end opening; and, The stirrup structure comprises a plurality of outer stirrups and a plurality of inner stirrups, wherein the plurality of outer stirrups are evenly spaced and connected to the outer sides of the plurality of vertical parts in the vertical direction, and a plurality of inner stirrups perpendicular to each other are arranged on one of the outer stirrups at the same vertical height, and the two ends of the plurality of inner stirrups are connected to the plurality of vertical parts in the horizontal direction.
3. The building seismic isolation rubber bearing according to claim 2, characterized in that: The connecting piece comprises: A plurality of first steel bars are installed vertically and evenly at intervals on the square steel bar structure; A positioning plate is installed on an upward end of the plurality of first steel bars, and the positioning plate is provided with a plurality of mounting holes; and A plurality of sleeve assemblies, wherein the sleeve assemblies include anchor bars and sleeves, one end of the anchor bars being fixedly connected to one end of the sleeve, a plurality of the sleeves being arranged corresponding to a plurality of the mounting holes, and the anchor bars corresponding to the plurality of the sleeves being fixedly connected to the square rib structure.
4. The building seismic isolation rubber bearing according to claim 3, characterized in that: The top surfaces of the multiple sleeves are flush with the upper end surface of the positioning plate, and the end surface of the concrete is 3 mm higher than the upper end surfaces of the multiple sleeves. The spacing between two laterally adjacent vertical portions is 60 mm, and the distance between the two outer stirrups is 80 mm.
5. The building seismic isolation rubber bearing according to claim 3, characterized in that: A casting hole is also provided in the middle of the positioning plate.
6. The building seismic isolation rubber bearing according to claim 3, characterized in that: The rubber shock isolator comprises: a rubber body, wherein the rubber body is cylindrical; and Two flange connection parts are respectively arranged on the two end surfaces of the rubber body, and a plurality of threaded mounting holes are arranged on the flange connection parts corresponding to the plurality of sleeves, and the corresponding sleeves are fixedly connected to the mounting holes by the bolts.
7. The building seismic isolation rubber bearing according to claim 6, characterized in that: The bolts are set as 8.8 grade common bolts.
8. The building seismic isolation rubber bearing according to claim 6, characterized in that: A protective structure is also provided between opposite ends of the two pier bodies to protect the rubber shock isolating member.
9. The building seismic isolation rubber bearing according to claim 8, characterized in that: The protective structure comprises: A rock wool sandwich panel is installed between two opposite ends of the two pier bodies corresponding to the outer periphery of the rubber body; and A protective net is arranged on the outside of the rock wool sandwich panel, and two ends of the protective net are respectively fixedly connected to the two pier bodies.
10. The building seismic isolation rubber bearing according to claim 8, characterized in that: A metal lead is provided between the two pier bodies to connect them.