CN216515762U - Shock insulation structure for independent foundation of existing building - Google Patents
Shock insulation structure for independent foundation of existing building Download PDFInfo
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- CN216515762U CN216515762U CN202123248923.3U CN202123248923U CN216515762U CN 216515762 U CN216515762 U CN 216515762U CN 202123248923 U CN202123248923 U CN 202123248923U CN 216515762 U CN216515762 U CN 216515762U
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Abstract
The utility model relates to the technical field of existing building reinforcement engineering, in particular to a shock insulation structure for an independent foundation of an existing building. The seismic isolation structure comprises an original independent foundation, an upper supporting column, a reinforced foundation and a seismic isolation support. The bottom of the original independent foundation is provided with a reinforcing steel bar. The connecting end of the reinforcing steel bar is connected with the concrete pouring to form a reinforced foundation. The reinforced foundation is symmetrically distributed along the central line of the original independent foundation. The top of the original independent foundation is provided with a first connecting layer. The bottom of the upper pillar is provided with a second connecting layer. And a shock insulation cavity for mounting a shock insulation support is arranged between the first connecting layer and the second connecting layer. The bottom of the vibration isolation support is embedded into the first connecting layer. The top of the vibration isolation support is embedded into the second connecting layer. The seismic isolation structure optimizes and reinforces the independent foundation in the existing building in the process of implementing seismic isolation and reinforcement on the existing building, further constructs a foundation seismic isolation structure for the independent foundation of the existing building, and improves the seismic isolation and seismic resistance of the foundation of the existing building.
Description
Technical Field
The utility model relates to the technical field of existing building reinforcement engineering, in particular to a shock insulation structure for an independent foundation of an existing building.
Background
The building seismic isolation structure is generally designed with a seismic isolation layer at the beginning of construction. The shock insulation support in the shock insulation layer absorbs the impact energy of the seismic waves, so that the impact of the seismic waves on the building is reduced, the purpose of reducing the deformation of the building structure is achieved, the impact energy is limited to be further transmitted to the upper structure of the building, and the shock resistance of the whole building structure is improved.
At present, a great number of brick-concrete structure buildings exist in the existing buildings, wherein earthquake fortification is not considered, or the target of earthquake fortification is lower although the earthquake fortification is considered, and the earthquake functionality is not considered in the week. Such buildings are difficult to withstand the impact of seismic waves in strong earthquakes. Particularly for buildings with higher requirements in earthquakes, such as hospitals, museums, schools and schools, and lifeline engineering. In order to ensure safe use and proper building functions of the buildings, earthquake resistance identification and reinforcement are required.
When the existing building is reinforced and isolated, in order to improve the isolation performance of the building, isolation supports are additionally arranged between layers to form an interlayer isolation structure for absorbing vibration energy. However, seismic energy is often transferred up through the foundation of existing buildings. Therefore, further optimization and reinforcement on the basis of construction is required. Especially on a single column or high building stand alone basis.
In summary, how to provide a seismic isolation structure in the process of implementing seismic reinforcement on an existing building to optimize and reinforce an independent foundation in the existing building, and further construct a foundation seismic isolation structure of the existing building to improve the seismic isolation and seismic performance of the foundation of the existing building becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The utility model aims to provide a shock insulation structure for optimizing and reinforcing an independent foundation in an existing building in the process of implementing seismic reinforcement for the existing building, so that a foundation shock insulation structure of the existing building is constructed, and the shock insulation and seismic performance of the foundation of the existing building is improved.
In order to achieve the purpose, the utility model adopts the following scheme: the shock insulation structure for the existing building independent foundation comprises an original independent foundation, an upper support column connected with an upper building structure, a reinforced foundation and a shock insulation support;
the bottom of the original independent foundation is provided with reinforcing steel bars, connecting ends of the reinforcing steel bars are connected with concrete pouring to form a reinforced foundation, the reinforced foundation is symmetrically distributed along the center line of the original independent foundation, the top of the original independent foundation is provided with a first connecting layer, the bottom of the upper strut is provided with a second connecting layer, and a shock insulation cavity for mounting a shock insulation support is arranged between the first connecting layer and the second connecting layer;
the bottom of the shock insulation support is connected with the top of an original independent foundation through a first connecting layer, the bottom of the shock insulation support is embedded into the first connecting layer, the top of the shock insulation support is connected with the bottom of the upper support through a second connecting layer, and the top of the shock insulation support is embedded into the second connecting layer.
Preferably, the periphery of the original independent foundation is connected with 4 reinforced foundations through reinforcing steel bars, and the 4 reinforced foundations are arranged in a rectangular mode along the center line of the original independent foundation. So set up, make full use of the peripheral space of former independent basis, consolidate the basis and enlarged the bottom sprag area of former independent basis, be convenient for expand into the bar basis with a plurality of independent bases, and then realized the reinforcement to existing building bottom basis, further improved the shock insulation anti-seismic performance of existing building basis.
Preferably, the reinforcing steel bars are arranged at equal intervals along the axial direction of the original independent foundation. So set up, many reinforcing bars pour through the secondary and link together former independent foundation and reinforcement foundation, are favorable to strengthening the joint strength between former independent foundation and the reinforcement foundation, and then have promoted shock insulation structure's basic rigidity.
Preferably, the first connecting layer and the second connecting layer are both secondary concrete pouring structures, a first embedded plate is embedded in the second connecting layer, a second embedded plate is embedded in the first connecting layer, and anchor bars are arranged at the head end of the first embedded plate and the tail end of the second embedded plate. So set up, accomplish the installation of first pre-buried board and second pre-buried board respectively through the secondary concreting on the upper prop of existing building and former independent basis in advance, reduced the construction degree of difficulty that founds the shock insulation layer on the basis of existing building, secondary concrete placement structure has guaranteed the joint strength between pre-buried board and the existing building.
As preferred, the shock insulation support includes roof, bottom plate and shock insulation pad, and the roof passes through the connecting piece and links to each other with first pre-buried board, and the bottom plate passes through the connecting piece and links to each other with the pre-buried board of second, and the head end of shock insulation pad is provided with first shrouding, and the tail end of shock insulation pad is provided with the second shrouding, and first shrouding links to each other with the roof, and the second shrouding links to each other with the bottom plate, has the lead core in the shock insulation pad, and the head end of lead core links to each other with first shrouding, and the tail end of lead core links to each other with the second shrouding. So set up, be convenient for installation constructor installs the shock insulation support in the shock insulation chamber, the lead core in the shock insulation support has improved the damping performance of support, except can bearing existing building structure's gravity and horizontal force, the hysteresis damped plastic deformation that the lead core produced can also further absorb energy to provide horizontal restoring force for the shock insulation pad.
Preferably, the shock insulation pad comprises a steel plate and a rubber pad, the steel plate and the rubber pad are sequentially stacked to form a buffering structure, and through holes for the lead to pass through are formed in the steel plate and the rubber pad. So set up, steel sheet and the range upon range of buffer structure of rubber pad have further promoted the anti shear behavior of shock insulation pad, and then have promoted the ability of the anti transverse load of reinforcing back building, the lead in the cooperation shock insulation pad, the plastic deformation absorbed energy of the hysteresis damping that the lead produced to provide horizontal restoring force for the shock insulation pad.
Preferably, the first embedded plate and the second embedded plate are both provided with threaded holes for screwing the connecting piece, the connecting piece is provided with a threaded section matched with the threaded holes, the threaded section is positioned at the head end of the connecting piece, and the tail end of the threaded section is provided with an extension section. So set up, be favorable to further improving the installation effectiveness, and then improved the whole body efficiency of construction of isolation structure.
Preferably, waist-shaped holes for the connecting pieces to pass through are formed in the top plate and the bottom plate. So set up, kidney type hole is used for adjusting the relative position between shock insulation pad and the existing building foundation when the installation, and then has improved the mounted position precision of isolation bearing.
Compared with the prior art, the seismic isolation structure for the independent foundation of the existing building, provided by the utility model, has the following substantive characteristics and progresses:
1. the seismic isolation structure for the independent foundation of the existing building is characterized in that a reinforced foundation formed by pouring concrete is connected with an original independent foundation of the existing building through reinforcing steel bars, the reinforced foundation is symmetrically distributed along the central line of the original independent foundation, the supporting area of the original independent foundation on an upper building structure is enlarged, the independent foundation in the existing building is optimized and reinforced, and the seismic isolation and resistance performance of the existing building is improved;
2. this a shock insulation structure for existing building independent foundation has the shock insulation chamber that supplies the installation of shock insulation support between upper prop and the former independent foundation, during the bottom embedding of shock insulation support and the first articulamentum that independent foundation links to each other, during the top embedding of shock insulation support and the second articulamentum that upper prop links to each other, establish the basic shock insulation structure of existing building, be favorable to further improving the joint strength of shock insulation support respectively with upper prop and former independent foundation, and then promoted the stability of shock insulation structure.
Drawings
FIG. 1 is a schematic view showing the internal structure of a seismic isolation structure for an existing building independent foundation according to an embodiment of the present invention;
fig. 2 is a plan view of a seismic isolation structure for an existing building independent foundation.
Reference numerals: the novel seismic isolation foundation comprises an original independent foundation 1, a reinforced foundation 2, reinforcing steel bars 3, a first embedded plate 4, a top plate 5, a first sealing plate 6, a seismic isolation pad 7, a lead core 8, a second sealing plate 9, a bottom plate 10, a second embedded plate 11, a connecting piece 12, anchor bars 13, an upper support column 14 and a connecting layer 15.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings.
A seismic isolation structure for an independent foundation of an existing building, as shown in fig. 1-2, is used to optimize and reinforce the independent foundation of the existing building in the course of performing seismic reinforcement on the existing building. The seismic isolation structure is characterized in that a reinforced foundation 2 formed by pouring concrete is connected with an original independent foundation 1 of an existing building through a reinforcing steel bar 3, and the supporting area of the original independent foundation 1 to an upper building structure is enlarged. And the reinforced foundations 2 are symmetrically distributed along the central line of the original independent foundation 1, so that the independent foundations in the existing building are optimized and reinforced, and the shock insulation and shock resistance of the existing building are improved. In addition, the both ends of isolation bearing all imbed the articulamentum 15, link to each other with former independent foundation 1 and last pillar 14 through articulamentum 15 respectively, construct the basic isolation structure of existing building, are favorable to further improving isolation bearing respectively with last pillar 14 and former independent foundation 1's joint strength, and then have promoted isolation structure's stability.
As shown in fig. 1, a seismic isolation structure for an existing building independent foundation includes an original independent foundation 1, an upper column 14 connected to an upper building structure, a reinforced foundation 2, and a seismic isolation support. The bottom of the original independent foundation 1 is provided with a steel bar 3. The connection end of reinforcing bar 3 links to each other with concrete placement formation reinforced foundation 2. The reinforced foundation 2 is symmetrically distributed along the central line of the original independent foundation 1. The top of the original independent foundation 1 is provided with a first connecting layer. The bottom of the upper pillars 14 is provided with a second connection layer. And a shock insulation cavity for mounting a shock insulation support is arranged between the first connecting layer and the second connecting layer.
The bottom of the shock insulation support is connected with the top of the original independent foundation 1 through a first connecting layer. The bottom of the vibration isolation support is embedded into the first connecting layer. The top of the seismic isolation bearing is connected with the bottom of the upper pillar 14 through a second connecting layer. The top of the vibration isolation support is embedded into the second connecting layer.
Wherein, first articulamentum and second articulamentum are secondary concrete placement structure. The first embedded plate 4 is embedded in the second connecting layer. And a second embedded plate 11 is embedded in the first connecting layer. And anchor bars 13 are arranged at the head end of the first embedded plate 4 and the tail end of the second embedded plate 11. So set up, accomplish the installation of first pre-buried board 4 and second pre-buried board 11 respectively through secondary concreting on the last pillar 14 of existing building and former independent foundation 1 in advance, reduced the construction degree of difficulty that builds the shock insulation layer on the basis of existing building, secondary concrete placement structure has guaranteed the joint strength between pre-buried board and the existing building.
As shown in fig. 1, the seismic isolation mount includes a top plate 5, a bottom plate 10, and a seismic isolation pad 7. The top plate 5 is connected with the first embedded plate 4 through a connecting piece 12. The base plate 10 is connected with a second embedded plate 11 through a connecting piece 12. The head end of the shock insulation pad 7 is provided with a first sealing plate 6. The tail end of the shock insulation pad 7 is provided with a second sealing plate 9. A first closure plate 6 is attached to the top plate 5. The second closure plate 9 is attached to the base plate 10. The shock insulation pad 7 is internally provided with a lead core 8. The head end of the lead 8 is connected to the first sealing plate 6. The end of the lead 8 is connected to a second closure plate 9. So set up, be convenient for installation constructor installs the shock insulation support in the shock insulation chamber. The lead core 8 in the shock insulation support improves the damping performance of the support, and besides the lead core can bear the gravity and the horizontal force of the existing building structure, the plastic deformation of the hysteretic damping generated by the lead core 8 can further absorb energy and provide horizontal restoring force for the shock insulation cushion 7.
For example, threaded holes for screwing the connecting pieces 12 are formed in the first embedded plate 4 and the second embedded plate 11. As shown in fig. 1, the connector 12 has a threaded section that mates with the threaded bore. The threaded section is located at the head end of the connector 12. The tail end of the thread section is provided with an extension section. So set up, be favorable to further improving the installation effectiveness, and then improved the whole body efficiency of construction of isolation structure.
Waist-shaped holes for the connecting pieces 12 to pass through are arranged on the top plate 5 and the bottom plate 10. So set up, waist type hole is used for adjusting the relative position between shock insulation pad 7 and the existing building foundation when the installation, and then has improved isolation bearing's mounted position precision.
As shown in fig. 2, 4 reinforcing foundations 2 are connected to the periphery of an original independent foundation 1 through reinforcing steel bars 3. The 4 reinforced foundations 2 are arranged in a rectangular shape along the central line of the original independent foundation 1. So set up, make full use of the peripheral space of former independent basis 1, consolidate basis 2 and enlarged the bottom sprag area of former independent basis 1, be convenient for expand into the bar basis with a plurality of independent bases, and then realized the reinforcement to existing building bottom basis, further improved the shock insulation performance of existing building basis. Wherein, the reinforcement foundation 2 of suitable quantity can be selected around the original independent foundation 1 according to the actual site condition of the independent foundation of the existing building. The number of the reinforcing foundations 2 may be selected to be 3-6.
As shown in fig. 1, the reinforcing bars 3 are arranged at equal intervals along the axial direction of the original independent foundation 1. So set up, many reinforcing bars 3 pour through the secondary and link together former independent basis 1 and reinforced foundation 2, are favorable to strengthening the joint strength between former independent basis 1 and the reinforced foundation 2, and then have promoted the basis rigidity of shock insulation structure.
In order to further improve the seismic isolation performance of the seismic isolation structure, the seismic isolation cushion 7 comprises a steel plate and a rubber cushion. The steel plate and the rubber pad are sequentially stacked to form a buffer structure, and through holes for the lead cores 8 to penetrate are formed in the steel plate and the rubber pad. So set up, steel sheet and the range upon range of buffer structure of rubber pad have further promoted the anti shear property of shock insulation pad 7, and then have promoted the ability of the anti transverse load of reinforcing back building. In cooperation with the lead core 8 in the vibration isolation pad 7, the hysteresis damping plastic deformation generated by the lead core 8 absorbs energy and provides horizontal restoring force for the vibration isolation pad 7.
When the seismic isolation structure for the independent foundation of the existing building is used, the reinforced foundation formed by pouring concrete is connected with the original independent foundation of the existing building through the reinforcing steel bars. The reinforced foundations are symmetrically distributed along the central line of the original independent foundation, so that the supporting area of the original independent foundation on an upper building structure is enlarged, the independent foundation in the existing building is optimized and reinforced, and the shock insulation and anti-seismic performance of the existing building is improved.
The present invention is not limited to the specific technical solutions described in the above embodiments, and the present invention may have other embodiments in addition to the above embodiments. It will be understood by those skilled in the art that various changes, substitutions of equivalents, and alterations can be made without departing from the spirit and scope of the utility model.
Claims (8)
1. A shock insulation structure for an independent foundation of an existing building is characterized by comprising an original independent foundation, an upper support column connected with an upper building structure, a reinforced foundation and a shock insulation support;
the bottom of the original independent foundation is provided with reinforcing steel bars, connecting ends of the reinforcing steel bars are connected with concrete pouring to form a reinforced foundation, the reinforced foundation is symmetrically distributed along the center line of the original independent foundation, the top of the original independent foundation is provided with a first connecting layer, the bottom of the upper strut is provided with a second connecting layer, and a shock insulation cavity for mounting a shock insulation support is arranged between the first connecting layer and the second connecting layer;
the bottom of the shock insulation support is connected with the top of an original independent foundation through a first connecting layer, the bottom of the shock insulation support is embedded into the first connecting layer, the top of the shock insulation support is connected with the bottom of the upper support through a second connecting layer, and the top of the shock insulation support is embedded into the second connecting layer.
2. The seismic isolation structure for the existing building independent foundation according to claim 1, wherein 4 reinforced foundations are connected around the original independent foundation through reinforcing steel bars, and the 4 reinforced foundations are arranged in a rectangular shape along the center line of the original independent foundation.
3. A seismic isolation structure for an existing building independent foundation according to claim 1 or 2, wherein the reinforcing bars are arranged at equal intervals in the axial direction of the original independent foundation.
4. The seismic isolation structure for the independent foundation of the existing building according to claim 3, wherein the first connecting layer and the second connecting layer are both secondary concrete pouring structures, a first embedded plate is embedded in the second connecting layer, a second embedded plate is embedded in the first connecting layer, and anchor bars are arranged at the head end of the first embedded plate and the tail end of the second embedded plate.
5. The seismic isolation structure for the independent foundation of the existing building according to claim 4, wherein the seismic isolation support comprises a top plate, a bottom plate and a seismic isolation cushion, the top plate is connected with a first embedded plate through a connecting piece, the bottom plate is connected with a second embedded plate through a connecting piece, a first sealing plate is arranged at the head end of the seismic isolation cushion, a second sealing plate is arranged at the tail end of the seismic isolation cushion, the first sealing plate is connected with the top plate, the second sealing plate is connected with the bottom plate, a lead core is arranged in the seismic isolation cushion, the head end of the lead core is connected with the first sealing plate, and the tail end of the lead core is connected with the second sealing plate.
6. The seismic isolation structure for the independent foundation of the existing building as claimed in claim 5, wherein the seismic isolation cushion comprises a steel plate and a rubber cushion, the steel plate and the rubber cushion are sequentially stacked to form a buffer structure, and through holes for lead cores to pass through are formed in the steel plate and the rubber cushion.
7. The seismic isolation structure for the independent foundation of the existing building according to claim 5, wherein the first embedded plate and the second embedded plate are provided with threaded holes for screwing the connecting pieces, the connecting pieces are provided with threaded sections matched with the threaded holes, the threaded sections are positioned at the head ends of the connecting pieces, and the tail ends of the threaded sections are provided with extension sections.
8. A seismic isolation structure as claimed in claim 7, wherein waist-shaped holes for connecting members to pass through are formed in the top plate and the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123248923.3U CN216515762U (en) | 2021-12-22 | 2021-12-22 | Shock insulation structure for independent foundation of existing building |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123248923.3U CN216515762U (en) | 2021-12-22 | 2021-12-22 | Shock insulation structure for independent foundation of existing building |
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| CN216515762U true CN216515762U (en) | 2022-05-13 |
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| CN202123248923.3U Active CN216515762U (en) | 2021-12-22 | 2021-12-22 | Shock insulation structure for independent foundation of existing building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934689A (en) * | 2022-05-24 | 2022-08-23 | 江苏鸿基节能新技术股份有限公司 | Building shock insulation reinforcing apparatus |
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2021
- 2021-12-22 CN CN202123248923.3U patent/CN216515762U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934689A (en) * | 2022-05-24 | 2022-08-23 | 江苏鸿基节能新技术股份有限公司 | Building shock insulation reinforcing apparatus |
| CN114934689B (en) * | 2022-05-24 | 2024-01-30 | 江苏鸿基节能新技术股份有限公司 | Building shock insulation reinforcing apparatus |
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