CN115162816B - Prestressed tensile anti-overturning shock insulation device and construction method thereof - Google Patents
Prestressed tensile anti-overturning shock insulation device and construction method thereof Download PDFInfo
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- CN115162816B CN115162816B CN202210976011.8A CN202210976011A CN115162816B CN 115162816 B CN115162816 B CN 115162816B CN 202210976011 A CN202210976011 A CN 202210976011A CN 115162816 B CN115162816 B CN 115162816B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0235—Anti-seismic devices with hydraulic or pneumatic damping
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0237—Structural braces with damping devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention discloses a prestress tensile anti-overturning vibration isolation device and a construction method thereof, wherein the prestress tensile anti-overturning vibration isolation device comprises a vibration isolation structure and a prestress system; the prestress system comprises a first stay cable, a second stay cable, a stay cable anchorage device, a connecting support, a triangular connecting device, a door-shaped connecting device and a shock insulation layer beam; the shock insulation layer beam and the door-shaped connecting device are respectively arranged at the top and the bottom of the shock insulation structure; the connecting support is arranged on the lower end face of the shock insulation layer beam, and is provided with a stay cable preformed hole; one end of the first stay cable is fixed on a stay cable anchor, and the other end of the first stay cable sequentially passes through the shock insulation structure, the stay cable preformed hole and the shock insulation layer beam to be fixed on the other stay cable anchor; the top beam of the door-shaped connecting device passes through the triangular connecting device; the top of the triangle connecting device is connected with the connecting support through a second stay rope. The invention can limit the generation of the tensile stress of the shock insulation support and play a role in anti-overturning.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a prestress tensile anti-overturning shock insulation device and a construction method thereof.
Background
The isolation structure comprises an upper buttress and a lower buttress, wherein an isolation support (rubber support) is arranged between the upper buttress and the lower buttress, the tensile property of the isolation support in the existing isolation structure is poor, the isolation support is easy to damage, and the isolation support can produce adverse effects on a building after being pulled to damage. The building earthquake isolation design standard specifies that the tensile stress of the ethylene-propylene type earthquake isolation support is not more than 1MPa when the earthquake is rarely encountered, and the tensile stress is not generated when the earthquake is rarely encountered in the A type building. The control of the tensile stress of the support of the high-intensity area and the high-aspect-ratio shock insulation structure becomes a difficult point of shock insulation design.
It is therefore necessary to reduce the generation of support tensile stresses at the design and construction level.
Disclosure of Invention
The invention aims to provide a prestress tensile anti-overturning shock insulation device and a construction method thereof.
The invention is realized by the following technical scheme:
the prestress tensile anti-overturning shock insulation device comprises a shock insulation structure and a prestress system;
the prestress system comprises a first stay cable, a second stay cable, a stay cable anchorage device, a connecting support, a triangular connecting device, a door-shaped connecting device and a shock insulation layer beam;
the shock insulation layer beam and the door-shaped connecting device are respectively arranged at the top and the bottom of the shock insulation structure;
the connecting support is arranged on the lower end face of the shock insulation layer beam, and a guy cable preformed hole is formed in the connecting support;
one end of the first stay cable is fixed on a stay cable anchorage device, the other end of the first stay cable sequentially passes through the shock insulation structure, the stay cable reserved hole and the shock insulation layer beam to be fixed on the other stay cable anchorage device, and the first stay cable is V-shaped;
the top beam of the door-shaped connecting device passes through the triangular connecting device;
the top of the triangular connecting device is connected with the connecting support through a second stay rope, and the triangular connecting device is in contact connection with the top beam of the door-shaped connecting device under the vertical tension action of the second stay rope.
The prestress system can increase the prestress of the shock insulation support and reduce the generation of the tensile stress of the support, wherein the first stay cable can increase the in-plane rigidity of the connecting support (the stay cable and the connecting support form truss-like stress, and the rigidity of the connecting piece is increased after combination); the second stay rope plays a role in tensile and anti-overturning, and after the first stay rope and the second stay rope are tensioned together, the pre-pressure is formed on the connecting support; the triangular connecting device is in contact connection with the door-shaped connecting device, the second stay rope provides pretension force to tighten the triangular connecting device and the door-shaped connecting device, the surface of the triangular connecting device and the surface of the second stay rope are smooth, horizontal deformation of the displacement of the shock insulation layer is reserved, and the second stay rope is ensured not to influence the deformation of the shock insulation layer.
In conclusion, the stretching of the prestress system enables the shock insulation support to have certain initial prestress; the prestress system plays a role of the anti-pulling device to further limit the generation of tensile stress of the shock insulation support, and plays a role of anti-overturning.
Further, one of the cable anchors is mounted on the top of the seismic isolation layer beam, and the other cable anchor is mounted on the upper pier of the seismic isolation structure.
Further, the upper buttress and the shock insulation layer beam are internally provided with pre-buried inhaul cable pipelines which are used for penetrating through the first inhaul cable.
Further, the hydraulic shock absorber further comprises a viscous damper, one end of the viscous damper is connected with the connecting support, and the other end of the viscous damper is connected with the lower buttress of the shock insulation structure.
The first stay cable can increase the in-plane rigidity of the connecting support, so that the viscous damper can play a role, and the viscous damper is connected with the connecting support containing the V-shaped first stay cable, so that the pressure of the shock insulation support is increased no matter the viscous damper generates in-plane pulling pressure, and the generation of the tension of the shock insulation support is further reduced; under the action of earthquake, when the vibration isolation support is pressed, the inhaul cable is loosened, the locking tension is reduced, and the compression stress of the vibration isolation support is reduced to a certain extent.
Therefore, the prestress system is combined with the viscous damper, and on the basis of applying a certain initial prestress to the shock insulation support, the prestress cable anti-pulling and anti-overturning device is also used, and meanwhile, the stress of the shock insulation support is coupled with the stress of the viscous damper, so that the arrangement mode and the structure of the tension of the shock insulation support are further reduced, and the shock insulation support is small in tensile stress and even free of tensile stress.
Further, the other end of the viscous damper is connected with the lower buttress through a damper support, and the viscous damper is horizontally arranged.
Further, a vertical stiffening plate is arranged on the connecting support.
Further, the bottom of shock insulation layer roof beam is provided with root reinforcing section, the connection support is installed in root reinforcing section bottom.
Further, the root reinforcing section comprises a concrete structure, and H-shaped steel is embedded in the concrete structure.
Further, the portal shaped connector is welded to the connector buttress, which is anchored with anchors.
The construction method of the prestress tensile anti-overturning shock insulation device comprises the following steps:
firstly, finishing construction of a shock insulation structure and a door-shaped connecting device;
and step two, installing a connecting support, and then sequentially anchoring a first stay rope, fixing a triangular connecting device and fixing a second stay rope.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the invention, a certain pre-compression force is applied to the vibration isolation support which is easy to generate tension through the reasonable structure of the pre-compression system, so that partial tension generated by the support under the action of earthquake can be counteracted.
2. The prestress system can lead the shock insulation support to have the functions of tensile resistance and anti-overturning.
3. The prestress system is combined with the viscous damper which is horizontally arranged, and the vertical pressure is generated on the shock insulation support by combining the output force of the viscous damper in a mode of being connected with the upper prestress system, so that the tensile stress of the shock insulation support can be further reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:
FIG. 1 is a schematic diagram of a prestressed tensile anti-overturning seismic isolation apparatus according to embodiment 1;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic diagram of the initial tension phase of the prestressed tensile anti-overturning seismic isolation apparatus of example 1;
FIG. 4 is a diagram illustrating the stress and deformation of the composite device under the seismic action of the prestressed tensile anti-capsizing seismic isolation device according to example 1;
FIG. 5 is a schematic structural diagram of a prestressed tensile anti-overturning seismic isolation apparatus according to embodiment 3;
fig. 6 is a schematic view of the first cable in two V-shapes.
In the drawings, the reference numerals and corresponding part names:
1-a first stay rope; 2-a second stay rope; 3-a guy anchor; 4-embedding a guy cable pipeline; 5-connecting the support; 6-vertical stiffening plates; 7-a stay rope preformed hole; 8-root reinforcement; 9-triangle connecting means; 10-door-shaped connection means; 11-connecting device piers; 12-anchoring parts; 13-viscous damper; 14-damper mount; 15-upper piers; 16-a shock insulation support; 17-lower piers; 18-a vibration isolation layer beam; 19-superstructure; 20-base.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Example 1:
1-4, a prestress tensile anti-overturning shock insulation device comprises a shock insulation structure and a prestress system;
the shock insulation structure is including being upper buttress 15 and the lower buttress 17 of relative setting from top to bottom, is provided with shock insulation support 16 between upper buttress 15 and the lower buttress 17, and wherein, the top of upper buttress 15 is provided with superstructure 19, and lower buttress 17 installs on basis 20, and is provided with pre-buried cable pipeline 4 in the upper buttress 15, pre-buried cable pipeline 4 slope setting and run through upper buttress 15.
The prestress system comprises a first stay cable 1, a second stay cable 2, two stay cable anchors 3, a connecting support 5, a triangular connecting device 9, a door-shaped connecting device 10 and a shock insulation layer beam 18;
the shock insulation layer beam 18 is arranged on the upper buttress 15 and is arranged opposite to the foundation 20 from top to bottom, an embedded cable pipeline 4 is arranged in the shock insulation layer beam 18, and the embedded cable pipeline 4 is obliquely arranged and penetrates through the shock insulation layer beam 18; the two cable anchors 3 are respectively arranged at the high end of the embedded cable duct 4 in the upper buttress 15 and at the high end of the embedded cable duct 4 penetrating through the shock insulation layer beam 18.
The bottom of the shock insulation layer beam 18 is provided with a root reinforcing section 8, the root reinforcing section 8 comprises a concrete structure, and H-shaped steel is embedded in the concrete structure.
The connection support 5 is arranged at the bottom of the root reinforcing section 8, the connection support 5 comprises a vertical steel plate, H-shaped steel can be adopted by the vertical steel plate, preferably, a vertical stiffening plate 6 is arranged on the connection support 5, a cable reserved hole 7 for penetrating a cable is arranged on the vertical steel plate, at least two cable reserved holes 7 are arranged, one cable reserved hole is used for penetrating the first cable 1, and the other cable reserved hole is used for fixing the second cable 2.
One end of the first stay cable 1 is fixed on the stay cable anchorage 3 on the upper support pier 15, the other end sequentially passes through the embedded stay cable pipeline 4 in the upper support pier 15, the stay cable preformed hole 7 on the connecting support 5 and the embedded stay cable pipeline 4 in the shock insulation layer beam 18 and then is fixed on the stay cable anchorage 3 on the shock insulation layer beam 18, and the first stay cable 1 is V-shaped; the vertical line passing through the vertex of the V-shaped is taken as a boundary, and the included angles between the boundary and the two sides of the V-shaped first stay rope 1 are respectively marked as a and b.
The position of the cable anchor 3 on the upper buttress 15 can be reasonably designed according to actual needs, and can be designed at any position on the top or the side wall of the upper buttress 15, namely, the range of the cable anchor 3 can be changed, and the cable anchor 3 is positioned near the shock insulation support 16.
In this embodiment, as shown in fig. 1, two cable anchors 3 are placed on top of the upper pier 15 and on top of the seismic isolation layer beam 18, respectively.
When the first stay cable 1 is in a V shape, the first stay cable 1 is arranged in the middle, as shown in fig. 1, when the first stay cable 1 is in two V shapes, the two V shapes are symmetrically arranged with the shock insulation support 16 as the center, as shown in fig. 6, correspondingly, the second stay cable 2, the connection support 5, the triangular connection device 9, the portal connection device 10 and the shock insulation layer beam 18 are symmetrically arranged with the shock insulation support 16 as the center, and the embedded stay cable pipeline 4 in the upper buttress 15 is in an arc structure with a downward opening.
The portal shaped connecting device 10 is installed on the upper end surface of the foundation 20, specifically, the portal shaped connecting device 10 is welded on the connecting device buttress 11, the connecting device buttress 11 is anchored by adopting the anchoring piece 12, specifically, a part of the anchoring piece 12 is embedded into the connecting device buttress 11, a part of the anchoring piece 12 is embedded into the foundation 20, so as to prevent the portal shaped connecting device 10 from being pulled up, and the shape of the portal shaped connecting device 10 can be understood as an inverted U shape.
The top beam of the door-shaped connecting device 10 passes through the triangular connecting device 9, the triangular connecting device 9 is in a shape of a triangle with a hollow frame structure in the middle, so that the top beam of the door-shaped connecting device 10 can pass through the frame; the top of the triangle connecting device 9 is provided with a through hole for fixing the second stay rope 2, two ends of the second stay rope 2 are respectively fixed on a stay rope preformed hole 7 on the connecting support 5 and the through hole at the top of the triangle connecting device 9, and the triangle connecting device 9 is contacted and connected with a top beam of the door-shaped connecting device 10 under the vertical tension of the second stay rope 2.
Example 2:
the embodiment is based on embodiment 1, and further comprises a viscous damper 13, wherein one end of the viscous damper 13 is connected with the connecting support 5, the other end of the viscous damper is connected with the lower buttress 17 through a damper support 14, and the viscous damper 13 is horizontally arranged.
The construction process of this embodiment:
after the superstructure 19 is completed, the cable is tensioned by post-tensioning, and the tension force P can be calculated preliminarily according to the cable angle and the desired precompression target value of the shock insulation support 16.
The installation step comprises the following steps: the first step is that the construction of the shock insulation layer beam 18 and the upper structure 19 is completed, and the construction of the shock insulation structure and the shock insulation layer beam 18 is completed by reserving a guy cable sleeve damper, a profile steel support embedded part, a portal steel beam and a buttress;
secondly, the first stay cable 1, the second stay cable 2 and the triangular connecting device 9 are in place, and the connecting support 5 and the root reinforcing section 8 are temporarily fixed by mounting bolts for prestress tensioning;
thirdly, if larger pre-compression force is required to be applied to the shock insulation support 16, the connection support 5 and the root reinforcing section 8 are welded after the connection is completed under equal pre-compression force; if the connecting support 5 and the root reinforcing section 8 are connected with tensioning prestress firstly, the prestress of the shock insulation support 16 is reduced by more than 1 half, and the pre-stress can be selected according to the situation;
fourth, the viscous damper 13 is debugged and installed, and the sliding surfaces of the door-shaped connecting device 10 and the triangular connecting device 9 are coated with lubricating oil to reduce horizontal friction force during movement.
The working principle of the embodiment is as follows:
a. tensioning stage
One end of a first stay cable 1 is fixed on an upper buttress 15 through a stay cable anchorage device 3, and is stretched at an adjacent shock insulation layer beam 18 after passing through a stay cable preformed hole 7 of a connecting support 5, the first stay cable 1 is V-shaped, and a second stay cable 2 is connected to the ground through a triangular connecting device 9 and a door-shaped connecting device 10; after the guy wires are tensioned, the first guy wire 1 has a tensile force PkN, and meanwhile, the side shock insulation support 16 obtains additional pre-compression force which is about P times sinakN; thereby increasing the initial compressive stress of the shock-insulating support 16 and counteracting the approximately P-sinakN tension generated under the action of the earthquake; and the internal force of the second cable 2 is about p0=pcosa+pcosb. The top of the connection support 5 is then welded to the anchor plate of the root reinforcing section 8, forming a prestressing system which together takes over the seismic action. The top of the connection support 5 and the anchor plate of the root reinforcing section 8 can be welded and then stretched, and at the moment, the stretching force part of the second stay cable 2 is transmitted into the shock insulation layer beam 18 by the connection support 5, so that the pre-stress of the shock insulation support 16 is reduced.
b. Earthquake action
One end of the viscous damper 13 is connected with the lower buttress 17, the other end of the viscous damper is connected with the connecting support 5, and the V-shaped inhaul cable formed by the first inhaul cable 1 enables the rigidity of the profile steel of the connecting support 5 to be increased in the plane, so that the in-plane horizontal force generated by the damper can be effectively resisted.
And (3) stress analysis: the horizontal force F generated by the damper, no matter the pulling and pressing force, enables the pulling force of the first stay cable 1 to be further increased to P1P1 to be larger than P, and the pulling force of the shock insulation support 16 can be further reduced. Meanwhile, if the shock insulation support 16 moves upwards, the pulling-resistant device formed by the second stay cable 2 can limit the movement of the pulling-resistant device, the generation of the pulling force of the shock insulation support 16 is further limited by the increase of the 2 pulling force P3 of the second stay cable, and the whole prestress system plays a role in tensile double insurance. When the shock insulation support 16 is pressed under the action of an earthquake, the second stay rope 2 has a certain relaxation, and the compression stress of the shock insulation support 16 is properly reduced when the P3 is reduced. Therefore, under the action of an earthquake, the support is limited in tension, the prestress is relaxed when the whole system is pressed, the prestress is reduced, and the compressive stress of the support is also reduced to a certain extent.
Deformation analysis: during an earthquake, the shock insulation support 16 deforms, the lower edge of the triangular connecting device 9 connected with the second stay rope 2 and the door-shaped connecting device 10 slide to adapt to the deformation of the shock insulation support 16, the two initial stages are both positioned in the middle to be contacted, measures such as lubrication oil coating are adopted after the contact is stretched, friction force is as small as possible during relative movement of the two, and meanwhile, the running distance larger than 0.55D is reserved, so that the second stay rope 2 is ensured not to hinder the movement of the shock insulation support 16. When the motion of the shock insulation layer exceeds the designed shock insulation seam, the device also plays a role in drawing and resetting.
Example 3:
this embodiment is based on embodiment 1, and differs from embodiment 1 in that: the positions of the cable anchors 3 are different.
As shown in fig. 5, two cable anchors 3 are placed on the side walls of the upper pier 15 and on the top of the seismic isolation layer beam 18, respectively.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to the present specification are for understanding and reading only by those skilled in the art, and are not intended to limit the scope of the invention, so that any structural modifications, proportional changes, or size adjustments should fall within the scope of the invention without affecting the efficacy and achievement of the present invention. Also, the terms such as "upper", "lower", "left", "right", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the invention for which the invention may be practiced or for which the relative relationships may be altered or modified without materially altering the technical context.
Claims (10)
1. The prestress tensile anti-overturning shock insulation device comprises a shock insulation structure, wherein the shock insulation structure comprises an upper support pier (15) and a lower support pier (17) which are arranged up and down oppositely, a shock insulation support saddle (16) is arranged between the upper support pier (15) and the lower support pier (17), an upper structure (19) is arranged at the top of the upper support pier (15), the lower support pier (17) is arranged on a foundation (20), an embedded cable pipeline (4) is arranged in the upper support pier (15), and the embedded cable pipeline (4) is obliquely arranged and penetrates through the upper support pier (15); the device is characterized by also comprising a prestressing system;
the prestress system comprises a first stay cable (1), a second stay cable (2), a stay cable anchorage device (3), a connecting support (5), a triangular connecting device (9), a door-shaped connecting device (10) and a shock insulation layer beam (18);
the shock insulation layer beam (18) and the door-shaped connecting device (10) are respectively arranged at the top and the bottom of the shock insulation structure;
the connecting support (5) is arranged on the lower end face of the shock insulation layer beam (18), and a guy cable preformed hole (7) is formed in the connecting support (5);
one end of the first stay cable (1) is fixed on the stay cable anchorage device (3), the other end of the first stay cable passes through the shock insulation structure, the stay cable preformed hole (7) and the shock insulation layer beam (18) in sequence and is fixed on the other stay cable anchorage device (3), and the first stay cable (1) is V-shaped;
the top beam of the door-shaped connecting device (10) passes through the triangular connecting device (9);
the top of the triangular connecting device (9) is connected with the connecting support (5) through a second stay rope (2), and the triangular connecting device (9) is in contact connection with the top beam of the door-shaped connecting device (10) under the vertical tension action of the second stay rope (2).
2. A prestressed tensile and anti-capsizing seismic isolation device according to claim 1, characterized in that one of the cable anchors (3) is mounted on top of the beam (18) of the seismic isolation layer and the other cable anchor (3) is mounted on the upper pier (15) of the seismic isolation structure.
3. The prestress tensile anti-overturning seismic isolation device according to claim 2, wherein the upper buttress (15) and the seismic isolation layer beam (18) are internally provided with pre-buried cable pipelines (4) for penetrating through the first cable (1).
4. The prestress tensile and anti-overturning seismic isolation device according to claim 1, further comprising a viscous damper (13), wherein one end of the viscous damper (13) is connected with the connecting support (5), and the other end of the viscous damper is connected with a lower buttress (17) of the seismic isolation structure.
5. The prestress tensile and anti-capsizing shock insulation device according to claim 4, wherein the other end of the viscous damper (13) is connected with the lower buttress (17) through a damper support (14), and the viscous damper (13) is horizontally arranged.
6. The prestress tensile and anti-overturning shock insulation device according to claim 1, wherein the connecting support (5) is provided with a vertical stiffening plate (6).
7. The prestress tensile anti-overturning seismic isolation device according to claim 1, wherein a root reinforcing section (8) is arranged at the bottom of the seismic isolation layer beam (18), and the connecting support (5) is installed at the bottom of the root reinforcing section (8).
8. The pre-stressed tensile and anti-overturning seismic isolation device of claim 7, wherein said root reinforcing section (8) comprises a concrete structure having H-section steel embedded therein.
9. The prestress tensile and anti-overturning seismic isolation device according to claim 1, wherein the portal-shaped connecting device (10) is welded on the connecting device buttress (11), and the connecting device buttress (11) is anchored by adopting an anchor piece (12).
10. A method of constructing a prestressed tensile and anti-overturning seismic isolation apparatus as claimed in any one of claims 1 to 9, comprising the steps of:
firstly, finishing construction of a shock insulation structure and a door-shaped connecting device (10);
and secondly, installing a connecting support (5), and then sequentially anchoring the first stay cable (1), fixing the triangular connecting device (9) and fixing the second stay cable (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210976011.8A CN115162816B (en) | 2022-08-15 | 2022-08-15 | Prestressed tensile anti-overturning shock insulation device and construction method thereof |
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| CN202210976011.8A CN115162816B (en) | 2022-08-15 | 2022-08-15 | Prestressed tensile anti-overturning shock insulation device and construction method thereof |
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