CN112144374A - Self-resetting ring spring inhaul cable buffering system, support and bridge - Google Patents
Self-resetting ring spring inhaul cable buffering system, support and bridge Download PDFInfo
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- CN112144374A CN112144374A CN202010975141.0A CN202010975141A CN112144374A CN 112144374 A CN112144374 A CN 112144374A CN 202010975141 A CN202010975141 A CN 202010975141A CN 112144374 A CN112144374 A CN 112144374A
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- self
- ring spring
- resetting
- hole section
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
Abstract
The invention relates to a self-resetting ring spring inhaul cable buffer system, a support and a bridge, wherein the self-resetting ring spring inhaul cable buffer system comprises: first and second apertured members: reserved pore channels are processed on the first pore-forming component and the second pore-forming component; the two ends of the ring spring inhaul cable component are respectively arranged on the first opening component and the second opening component: the semi-spherical hinge is installed in a reserved hole channel in a rotating fit mode respectively, the two connecting screw rods penetrate through the semi-spherical hinge respectively and are connected through the stranded wires, and the ring spring group is further sleeved on the connecting screw rods. Compared with the prior art, the invention has good shock absorption and limiting capabilities under the action of horizontal and vertical earthquakes, can promote the self-resetting of the structure, provides certain energy consumption capability, reduces the structural damage to the maximum extent and improves the restorability of the structure after the earthquake.
Description
Technical Field
The invention belongs to the technical field of civil engineering earthquake resistance and shock absorption, and relates to a self-resetting ring spring inhaul cable buffering system, a support and a bridge.
Background
When the structure is under the action of earthquake, temperature change, external impact load and the like, relative displacement and even mutual collision are often generated between the components with different rigidities, and further the components are damaged, and the structure is irreversibly damaged. In the field of civil engineering earthquake resistance, the damage of a structure or a component layer is generally reduced or avoided by installing a component or a limiting device with a buffer function, such as a damper, an earthquake reduction and isolation support and the like.
At present, in a bridge structure, members with buffering and limiting functions, such as a rubber support, a lead support, a limiter and the like, have the advantages of stably supporting an upper structure, reducing upward transmission of seismic energy and the like, but the horizontal rigidity of the members is low, large deformation is easily generated under a large earthquake, and risks of support damage, beam collision and even beam falling exist.
In view of the above, a limiting and buffering energy consuming system with better performance needs to be developed and applied.
Disclosure of Invention
The invention aims to provide a self-resetting ring spring inhaul cable buffering system which has the excellent characteristics of high strength, good durability, strong deformation energy consumption capability, self-resetting capability, effective resistance to external load and the like.
The purpose of the invention can be realized by the following technical scheme:
in one aspect, the present invention provides a self-resetting ring spring cable buffering system, including:
a first apertured member and a second apertured member respectively disposed on two adjacent structures to be cushioned: reserved pore channels are processed on the first pore-forming component and the second pore-forming component;
the two ends of the ring spring inhaul cable component are respectively arranged on the first opening component and the second opening component: the semi-spherical hinge is respectively installed in a reserved hole channel on the first opening component and the second opening component in a rotating fit mode, the two connecting screw rods respectively penetrate through the semi-spherical hinge, the end portions of the two connecting screw rods respectively penetrating through the semi-spherical hinge are connected through the stranded wire, and the ring spring group is further sleeved on the connecting screw rods.
Further, the surface that first trompil component and second trompil component are relative is inboard, reserve the pore and divide into cylinder hole section, hemisphere hole section and the round platform hole section that communicates in proper order from outside to inside, wherein, the shape and the hemisphere hinge phase-match of hemisphere hole section, the round platform hole section is the horn mouth form.
Furthermore, the diameter of the cylindrical hole section is the same as that of the hemispherical hole section.
Furthermore, the diameter of the smaller end of the circular truncated cone hole section is not less than twice of the diameter of the stranded wire.
Furthermore, the connecting screw rod is also sleeved with a fastening nut, and two ends of the ring spring group are respectively hinged and compressed by the fastening nut and the hemisphere.
Furthermore, a gasket is arranged between the fastening nut and the ring spring group.
Further, still be equipped with between first trompil component and the second trompil component and in turn the stromatolite and placed intermediate layer rubber and intermediate layer steel sheet, and adopt protective layer rubber parcel all around at intermediate layer rubber and intermediate layer steel sheet for intermediate layer rubber, intermediate layer steel sheet and protective layer rubber constitute a rubber stromatolite whole.
Furthermore, an upper sealing plate and a lower sealing plate are arranged between the first opening component and the second opening component and the sandwich rubber respectively positioned at the uppermost part and the lowermost part, and the upper sealing plate and the lower sealing plate are also wrapped by the protective layer rubber.
Furthermore, end bending anchors are respectively and fixedly arranged on the first opening component and the second opening component.
Furthermore, the end bending anchoring part is fixedly arranged on the first opening component or the second opening component by adopting an anchor bolt, and a rubber gasket is arranged at the part of the end bending anchoring part, which is contacted with the first opening component or the second opening component.
Furthermore, the first perforated member and the second perforated member are made of metal materials or concrete materials, and when the first perforated member and the second perforated member are made of concrete materials, a contact surface protection layer covers the surface of the reserved hole channel.
In another aspect, the present invention further provides a support, wherein the support body correspondingly adopted by the support can be any type of support, such as a rubber support, a lead support, etc., and can be used as an anti-seismic bridge support, etc., and the self-resetting ring spring cable buffer system in any one of the above embodiments or any combination thereof is adopted, specifically, the first opening member and the second opening member are respectively used as an upper support plate and a lower support plate, and the first opening member and the second opening member are respectively and fixedly provided with an end bending anchor.
In a specific implementation mode, taking the rubber support as an example, the first perforated member and the second perforated member are further provided with an alternating lamination layer between which interlayer rubber and interlayer steel plates are placed, and the peripheries of the interlayer rubber and the interlayer steel plates are wrapped by protective layer rubber, so that the interlayer rubber, the interlayer steel plates and the protective layer rubber form a rubber lamination whole. Furthermore, an upper sealing plate and a lower sealing plate are arranged between the first opening component and the second opening component and the sandwich rubber respectively positioned at the uppermost part and the lowermost part, and the upper sealing plate and the lower sealing plate are also wrapped by the protective layer rubber.
In a specific embodiment, the bent-end anchor is fixedly provided on the first aperture member or the second aperture member using an anchor bolt, and a rubber washer is disposed on a portion of the bent-end anchor in contact with the first aperture member or the second aperture member.
In yet another aspect, the present invention provides a bridge, which includes a first beam (i.e., a first opening member), a second beam (i.e., a second opening member), an access manway, an access shaft, and a self-resetting ring spring cable buffering system according to any one of the above embodiments or any combination thereof.
In a specific embodiment, the first beam body and the second beam body are provided with an inspection pedestrian passage and an inspection well which is communicated with the inspection pedestrian passage and is positioned beside a reserved through hole of the self-resetting ring spring inhaul cable buffer system.
The self-resetting ring spring inhaul cable buffering system has the excellent characteristics of high strength, good durability, strong deformation energy consumption capability, capability of realizing self-resetting, effective resistance to external load and the like; the self-resetting ring spring inhaul cable buffer system can be applied to the connecting part of a pier and a bridge deck or the connecting part of a bearing platform and the pier and the like. Take the connection between the bridge pier and the bridge deck as an example: under the action of a small shock, limited relative displacement occurs between the pier and the bridge deck slab, the self-resetting ring spring guy cable is tensioned in a small range, mutual collision of components is avoided under the action of a self-resetting ring spring guy cable buffer system, and self-resetting between the pier and the bridge deck slab is realized; under the action of a large earthquake, the self-resetting ring spring inhaul cable buffer system reaches the deformation limit, the energy consumption buffering capacity is fully exerted, the relative displacement of the bridge deck and the bridge pier is effectively limited, and the bridge deck is prevented from falling off; at the moment, because the self-reset ring spring inhaul cable buffer system bears larger instantaneous stress, damages such as breakage of threads on the surface of a part of inhaul cable, surface abrasion (or local cracking) of a ring spring group and the like can occur; these localized failures may be reused after a shock to replace the damaged component.
Drawings
FIG. 1 is a schematic structural view of a self-resetting ring spring cable buffering system;
FIG. 2 is a schematic view of a portion of a reserve tunnel;
FIG. 3 is a schematic view of a portion of the ring spring assembly wherein (a) is a view showing an unstressed state and (b) is a view showing a stressed state;
FIG. 4 is a top view of a rubber mount employing a self-resetting ring spring cable damping system;
3 FIG. 3 5 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 of 3 section 3 A 3- 3 A 3 of 3 FIG. 3 4 3; 3
FIG. 6 is a schematic cross-sectional view of section B-B of FIG. 4;
FIG. 7 is a top view of the rubber mount of FIG. 4 in a slip deformation under horizontal force;
FIG. 8 is a schematic cross-sectional view of section C-C of FIG. 7;
FIG. 9 is a schematic cross-sectional view of a bridge employing a self-resetting ring spring cable buffering system along the down-bridge direction;
FIG. 10 is a cross-sectional view of a bridge employing a self-resetting ring spring cable buffering system along a transverse bridge direction;
the notation in the figure is:
1-a first perforated member, 2-a second perforated member, 3-a reserved hole channel, 4-a self-resetting ring spring inhaul cable buffer system, 5-a hemispherical hinge, 6-a connecting screw rod, 7-a stranded wire, 8-a ring spring group, 9-a fastening nut, 10-a gasket, 11-an end bending anchor, 12-a rubber gasket, 13-an anchoring bolt, 14-a sandwich rubber, 15-a sandwich steel plate, 16-a protective layer rubber, 17-an upper sealing plate, 18-a lower sealing plate, 19-a left beam body, 20-a right beam body, 21-an inspection pedestrian passage, 22-an inspection well, 23-a cylindrical hole section, 24-a hemispherical hole section and 25-a circular truncated cone hole section.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The features defined as "first" and "second" may explicitly or implicitly include one or more of the features.
In the following embodiments or examples, functional components or structures that are not specifically described are all conventional components or structures in the art for achieving the corresponding functions.
In one aspect, the present invention provides a self-resetting ring spring cable buffering system, which is shown in fig. 1 to 3, and includes:
a first apertured member 1 and a second apertured member 2 respectively disposed on two adjacent structures to be cushioned: reserved hole channels 3 are processed on the first hole-forming component 1 and the second hole-forming component 2;
a ring spring cable assembly having both ends respectively provided in the first opening member 1 and the second opening member 2: including two hemispherical hinges 5, two connecting screw 6, stranded conductor 7 and two sets of ring spring group 8 that are located the tip, wherein, hemispherical hinge 5 is normal running fit respectively and is installed in reservation pore 3 on first trompil component 1 and second trompil component 2, and two connecting screw 6 pass a hemispherical hinge 5 respectively, and two connecting screw 6 adopt stranded conductor 7 to connect through the tip of hemispherical hinge 5 respectively, still overlap on connecting screw 6 and be equipped with ring spring group 8.
The stranded wire 7 is connected to the hemispherical hinge 5 capable of realizing multi-angle free rotation, so that the slippage of the first perforated member 1 and the second perforated member 2 in any direction can be effectively limited. In a natural state, the ring spring group 8 and the stranded wire 7 are naturally loosened, and the contact surface of the hemispherical hinge 5 and the hemispherical hole section 24 in the second opening component 2 is naturally lapped; under the working state, the stranded wire 7 is in a tightened high-stress state, the hemispherical hinge 5 in the second opening component 2 is in close contact with the contact surface of the hemispherical hole section 24, and the hemispherical hinge 5 rotates for an angle along with the elongation of the stranded wire 7 in a self-adaptive manner.
In a specific embodiment, use first trompil component 1 and the relative surface of second trompil component 2 as the inboard, reserve pore 3 and divide into cylinder hole section 23, hemisphere hole section 24 and round platform hole section 25 that communicate in proper order from outside to inside, wherein, the shape and the hemisphere hinge 5 phase-match of hemisphere hole section 24, round platform hole section 25 is the horn mouth form. Furthermore, the diameter of the cylindrical hole section 23 is the same as or equivalent to that of the hemispherical hole section 24, so that the hemispherical hinge 5 can be arranged in the hemispherical hole section 24 through the cylindrical hole section 23, and the flexibility of moving the hemispherical hinge 5 up and down in the hole can be ensured. Furthermore, the diameter of the smaller end of the circular truncated cone hole section 25 is not less than twice the diameter of the stranded wire 7. At the same time, it should be ensured that the rotatable hemispherical hinge 5 cannot slip out of the circular truncated cone hole section 25 during the maximum angular rotation. Further, when the thickness of the first or second perforated member 1 or 2 is limited, it is considered that the circular truncated cone hole section 25 is not reserved, that is, the circular truncated cone hole section 25 may be omitted. The diameter of the hemispherical hole section 24 is slightly larger than that of the hemispherical hinge 5, so that the hemispherical hinge 5 can freely rotate in the hemispherical hole section 24.
In a specific embodiment, the pre-cut via shapes in the first and second apertured members 1 and 1 are always and symmetrically distributed. Meanwhile, the hemispherical hinge 5 is also provided with a through hole for the connecting screw rod 6 to pass through. Preferably, the stranded wire 7 can be formed by winding a series of metal wires or FRP wires. Two ends of the stranded wire 7 can be fixedly connected with the connecting screw 6 by using a high-temperature liquid metal technology.
In a specific embodiment, the connecting screw 6 is further sleeved with a fastening nut 9, and both ends of the ring spring group 8 are respectively pressed against and compressed by the fastening nut 9 and the hemispherical hinge 5. The diameter, the length and the number of the stranded wires 7 and the size and the number of the ring spring groups 8 are reasonably selected according to design requirements and the specific earthquake response of the structure, and meanwhile, the length of the stranded wires 7 can be adjusted by adjusting the fastening nuts 9. Furthermore, a washer 10 is provided between the fastening nut 9 and the ring spring assembly 8.
In a specific embodiment, the first and second perforated members are made of a metal material or a concrete material, and when the first and second perforated members are made of a concrete material, the surface of the reserved hole 3 is covered with a contact surface protection layer. The contact surface protective layer can be made of steel or FPR (flexible flat cable) materials with a certain thickness so as to avoid the brittle fracture of the self-resetting ring spring inhaul cable buffer system 4 due to the fact that the concrete in the area near the through hole is subjected to overlarge local stress during working.
In a specific embodiment, the material of the stranded wire 7 includes, but is not limited to, metal/alloy materials such as high-strength steel, shape memory alloy, etc., and FRP materials such as, but not limited to, carbon fiber composite material, glass fiber reinforced material, etc.
In a specific embodiment, the ring spring group 8 is composed of an upper half inner ring, a lower half inner ring (i.e. an end inner ring), a middle inner ring and an outer ring, the slope of the circular truncated cone generatrix of the inner surface of the outer ring is the same as that of the circular truncated cone generatrix of the outer surface of the end inner ring or the middle inner ring, and when in use, the lower half inner ring, the outer ring (which may be a first outer ring), the middle inner ring, a second outer ring, … and the upper half inner ring can be sequentially installed; under the unstressed condition, the lower half inner ring, the first outer ring, the inner ring, the second outer ring, the upper half inner ring and the like can realize natural lap joint; under the stress condition, the lower half inner ring, the first outer ring, the inner ring, the second outer ring, the upper half inner ring and the like can realize the cooperative stress.
The above embodiments may be implemented individually, or in any combination of two or more.
On the other hand, referring to fig. 4 to 8, the present invention further provides a rubber mount, which can be used as an anti-seismic bridge mount, etc., and which employs the self-resetting ring spring cable buffering system 4 in any one of the above embodiments or any combination thereof, specifically, the first opening member 1 and the second opening member 2 are respectively used as an upper support plate and a lower support plate, and the first opening member 1 and the second opening member 2 are respectively and fixedly provided with an end bending anchor 11.
In a specific embodiment, the first perforated member 1 and the second perforated member 2 are further provided with interlayer rubber 14 and interlayer steel plates 15 which are alternately stacked, and the peripheries of the interlayer rubber 14 and the interlayer steel plates 15 are wrapped by protective layer rubber 16, so that the interlayer rubber 14, the interlayer steel plates 15 and the protective layer rubber 16 form a rubber stacked whole. Further, an upper seal plate 17 and a lower seal plate 18 are provided between the first aperture member 1 and the second aperture member 2 and the uppermost and lowermost laminated rubbers 14, respectively, and the upper seal plate 17 and the lower seal plate 18 are also covered with a cover rubber 16.
In a specific embodiment, the bent-end anchor 11 is fixedly provided on the first aperture member 1 or the second aperture member 2 using an anchor bolt 13, and a rubber washer 12 is disposed in a portion of the bent-end anchor 11 in contact with the first aperture member 1 or the second aperture member 2.
In still another aspect, referring to fig. 9 and 10, the present invention further provides a bridge, which includes a first beam (i.e. the first opening member 1), a second beam (i.e. the second opening member 2), a manhole 21, a manhole 22, and a self-restoring ring spring cable buffering system 4 according to any one of the above embodiments or any combination thereof.
In a specific embodiment, the first beam body and the second beam body are provided with an inspection pedestrian passage 21 and an inspection well 22 which is communicated with the inspection pedestrian passage 21 and is positioned beside a reserved through hole of the self-resetting ring spring cable buffer system 4.
The above embodiments will be described in more detail with reference to specific examples.
Example 1:
referring to fig. 1 to 3, the present invention provides a self-resetting ring spring cable buffering system, which is structurally illustrated in fig. 1 to 3 and comprises:
a first apertured member 1 and a second apertured member 2 respectively disposed on two adjacent structures to be cushioned: reserved hole channels 3 are processed on the first hole-forming component 1 and the second hole-forming component 2;
a ring spring cable assembly having both ends respectively provided in the first opening member 1 and the second opening member 2: including two hemisphere hinges 5, two connecting screw 6, stranded conductor 7 and two sets of ring spring group 8 that are located the tip, wherein, hemisphere hinge 5 is installed in the reservation pore 3 on first trompil component 1 and second trompil component 2 respectively normal running fit, and two connecting screw 6 pass one hemisphere hinge 5 respectively, and two connecting screw 6 adopt stranded conductor 7 to connect through the tip of hemisphere hinge 5 respectively, still overlap on connecting screw 6 and be equipped with ring spring group 8.
The stranded wire 7 in the embodiment is connected to the hemispherical hinge 5 capable of freely rotating at multiple angles, so that the slippage of the first perforated member 1 and the second perforated member 2 in any direction can be effectively limited. In a natural state, the ring spring group 8 and the stranded wire 7 are naturally loosened, and the contact surface of the hemispherical hinge 5 and the hemispherical hole section 24 in the second opening component 2 is naturally lapped; under the working state, the stranded wire 7 is in a tightened high-stress state, the hemispherical hinge 5 in the second opening component 2 is in close contact with the contact surface of the hemispherical hole section 24, and the hemispherical hinge 5 rotates for an angle along with the elongation of the stranded wire 7 in a self-adaptive manner.
Referring to fig. 2 again, the opposite surfaces of the first opening member 1 and the second opening member 2 are taken as inner sides, and the reserved hole channel 3 is divided into a cylindrical hole section 23, a hemispherical hole section 24 and a circular truncated cone hole section 25 which are sequentially communicated from outside to inside, wherein the shape of the hemispherical hole section 24 is matched with that of the hemispherical hinge 5, and the circular truncated cone hole section 25 is in a bell mouth shape. Furthermore, the diameter of the cylindrical bore section 23 is the same as or equivalent to the diameter of the hemispherical bore section 24, ensuring that the hemispherical hinge 5 can be placed in the hemispherical bore section 24 through the cylindrical bore section 23, while at the same time ensuring flexibility in moving the hemispherical hinge 5 up and down in the bore. Furthermore, the diameter of the smaller end of the circular truncated cone hole section 25 is not less than twice the diameter of the stranded wire 7. At the same time, it should be ensured that the rotatable hemispherical hinge 5 cannot slip out of the circular truncated cone hole section 25 during the maximum angular rotation. Further, when the thickness of the first or second perforated member 1 or 2 is limited, it is considered that the circular truncated cone hole section 25 is not reserved, that is, the circular truncated cone hole section 25 may be omitted. The diameter of the hemispherical hole section 24 is slightly larger than that of the hemispherical hinge 5, so that the hemispherical hinge 5 can freely rotate in the hemispherical hole section 24.
Referring to fig. 2 again, the shapes of the reserved through holes in the first opening member 1 and the second opening structure are distributed consistently and symmetrically. Meanwhile, the hemispherical hinge 5 is also provided with a through hole for the connecting screw rod 6 to pass through. Preferably, the stranded wire 7 can be formed by winding a series of metal wires or FRP wires. Two ends of the stranded wire 7 can be fixedly connected with the connecting screw 6 by using a high-temperature liquid metal technology.
Referring to fig. 1 and fig. 3 again, the connecting screw 6 is further sleeved with a fastening nut 9, and two ends of the ring spring group 8 are respectively pressed against and compressed by the fastening nut 9 and the hemispherical hinge 5. The diameter, the length and the number of the stranded wires 7 and the size and the number of the ring spring groups 8 are reasonably selected according to design requirements and the specific earthquake response of the structure, and meanwhile, the length of the stranded wires 7 can be adjusted by adjusting the fastening nuts 9. Furthermore, a washer 10 is provided between the fastening nut 9 and the ring spring assembly 8.
The upper support plate and the lower support plate are made of metal materials or concrete materials, and when the upper support plate and the lower support plate are made of concrete materials, a contact surface protective layer covers the surface of the reserved hole channel 3. The contact surface protection layer can be made of a moving-thickness material just before or FPR (flexible flat cable) so as to avoid the self-resetting ring spring inhaul cable buffer system 4 from being subjected to shearing brittle failure due to local overlarge stress in the area near the through hole during working.
The material selected for the stranded wire 7 includes but is not limited to metal/alloy materials such as high-strength steel, shape memory alloy and the like, and includes but is not limited to FRP materials such as carbon fiber composite materials, glass fiber reinforced materials and the like.
As shown in fig. 3, the ring spring assembly 8 is composed of an upper half inner ring, a lower half inner ring (i.e., an end inner ring), a middle inner ring and an outer ring, the slope of the circular truncated cone generatrix of the inner surface of the outer ring is the same as the slope of the circular truncated cone generatrix of the outer surface of the end inner ring or the middle inner ring, and when in use, the lower half inner ring, the outer ring (which may be a first outer ring), the middle inner ring, a second outer ring, the. The lower half inner ring, the first outer ring, the inner ring, the second outer ring, the upper half inner ring and the like can be naturally lapped under the unstressed condition; under the stress condition, the lower half inner ring, the first outer ring, the inner ring, the second outer ring, the upper half inner ring and the like can realize the cooperative stress. The inner ring and the outer ring are buckled and lapped through mutual contact and extrusion of the chamfer surface on the inner side of the outer ring and the chamfer surface on the outer side of the inner ring.
Example 2:
referring to fig. 4 to 8, the present embodiment provides a support, which is a rubber support, and can be used as an anti-seismic bridge support, and the support includes the self-resetting ring spring cable buffering system 4 of embodiment 1, specifically, the first opening member 1 and the second opening member 2 are respectively used as an upper support plate and a lower support plate, and the first opening member 1 and the second opening member 2 are respectively and fixedly provided with an end bending anchor 11. The processing of tip crotch not only can guarantee the reliable anchor of level to, more importantly increases vertical resistance to plucking ability, has promoted the vertical spacing reliability of this support.
Referring to fig. 5 or 8 again, an alternating lamination of the sandwiched rubber 14 and the sandwiched steel plate 15 is further disposed between the first perforated member 1 and the second perforated member 2, and the sandwiched rubber 14 and the sandwiched steel plate 15 are wrapped with the protective rubber 16, so that the sandwiched rubber 14, the sandwiched steel plate 15 and the protective rubber 16 form a rubber lamination whole. An upper seal plate 17 and a lower seal plate 18 are provided between the first aperture member 1 and the second aperture member 2 and the sandwiched rubber 14 located uppermost and lowermost, respectively, and the upper seal plate 17 and the lower seal plate 18 are also covered with a cover rubber 16. The whole rubber lamination can be correspondingly placed in the circular grooves which are reserved on the upper support plate and the lower support plate and have the depth of about 1 cm. Referring to fig. 5 again, the end bending anchor 11 is fixedly disposed on the first opening member 1 or the second opening member 2 by using an anchor bolt 13, and a rubber gasket 12 is disposed at a portion of the end bending anchor 11 contacting the first opening member 1 or the second opening member 2 for isolation protection.
As shown in fig. 8, a large horizontal relative displacement is generated between the upper supporting plate and the lower supporting plate, a large shearing relative displacement is generated on the whole rubber lamination, the stranded wires 7 are tensioned, and the connecting nuts of the hemispherical hinges 5 are tightly contacted with the hole wall and are rotated by corresponding angles to adapt to the horizontal limit relative displacement. Because the self-reset ring spring inhaul cable buffer system 4 shows excellent hysteresis performance in the loading process, the self-reset ring spring inhaul cable buffer system plays good buffering energy dissipation effect and limiting effect in the instant loading process, and can reset the support after the earthquake because of the super-elastic effect.
As shown in fig. 7 and 8, one of the technical points of the present embodiment is that a certain horizontal displacement flexibility can be maintained under the action of a small earthquake or a medium earthquake, and the relative displacement in the horizontal and vertical directions between the upper support plate and the lower support plate can be effectively limited under the action of a large earthquake.
As shown in fig. 1, the installation positions and the number of the self-resetting ring spring cable buffering systems 4 can be adjusted according to design parameter conditions, for example, the self-resetting ring spring cable buffering systems can be installed at any position around the whole rubber laminate, and the number can be adjusted to be other than 10. At the same time, the upper support plate or the like can also take the form of other supports, for example lead rubber supports or the like, and can also be designed as fixed or semi-fixed supports.
In conclusion, on the premise that the support is allowed to relatively displace in a certain amount in the horizontal direction and the vertical direction, the energy consumption capability and the reliability of the support under the action of an earthquake are greatly improved, the self-resetting and multi-directional limiting functions after the earthquake are increased, and better technical support is provided for the design of the earthquake-resistant bridge support.
Example 3:
referring to fig. 9 and 10 again, the present embodiment provides a bridge, which includes a first beam (i.e., a first opening member 1), a second beam (i.e., a second opening member 2), an access walkway 21, an access shaft 22, and the self-resetting circlip cable buffer system 4 according to embodiment 1.
And the first beam body and the second beam body are provided with an overhaul pedestrian passage 21 and an overhaul well 22 which is communicated with the overhaul pedestrian passage 21 and is positioned beside a reserved through hole of the self-resetting ring spring inhaul cable buffer system 4. As shown in fig. 9, construction and maintenance personnel can enter the maintenance well 22 in the beam end through the maintenance pedestrian passageway 21 to perform regular maintenance on the bridge limiting device. The bridge limiting device adopting the self-resetting ring spring inhaul cable buffering system 4 occupies a small volume, can be well suitable for the engineering condition limitation of narrow working space of the manhole 22, can bring convenience to construction, and ensures the engineering installation quality.
In addition, the bridge of example 3 may naturally include the rubber mount as in example 2 between the two bridge bodies as a shock absorbing structure.
The working principle of this embodiment is specifically: when the bridge is not subjected to the action of an earthquake, the self-resetting ring spring inhaul cable buffering system 4 (namely the bridge limiting device) is in a natural unstressed state, the stranded wires 7 in the self-resetting ring spring inhaul cable buffering system 4 are in a straightened but untensioned state, and the interior of the ring spring group 8 is naturally lapped and unstressed. Under the vehicle-mounted action, the temperature action, the external impact load or the earthquake action, the right beam body 20 and the left beam body 19 generate relative displacement, the stranded wire 7 is tensioned, and the connecting nuts of the hemispherical hinges 5 are in close contact with the hole wall and rotate by corresponding angles to adapt to the limit relative displacement. Because the self-resetting ring spring inhaul cable buffer system 4 shows excellent hysteretic performance in the loading process, the self-resetting ring spring inhaul cable buffer system plays good buffering energy dissipation effect and limiting effect in the instant loading process, and can reset the left and right beam bodies 20 after an earthquake due to the super-elastic effect.
As shown in fig. 9, through holes adapted to the self-resetting ring spring cable buffer system 4 should be reserved in two adjacent beams (the left beam 19 and the right beam 20), and the shape of the through holes is suggested as shown in fig. 2 and related descriptions, which are not described herein again. Two adjacent beam bodies (the left beam body 19 and the right beam body 20) are connected through a plurality of bridge limiting devices adopting the self-resetting ring spring inhaul cable buffering system 4, so that the limiting and energy consumption effects of the bridge limiting devices adopting the self-resetting ring spring inhaul cable buffering system 4 on the transverse bridge direction and the forward bridge direction of the bridge are ensured.
Preferably, the bridge adopting the self-resetting ring spring cable buffer system 4 bridge limiting device is a continuous rigid frame bridge.
In addition, the installation positions of the self-resetting ring spring cable buffer system 4 are not limited to the scheme arranged in fig. 9, the self-resetting ring spring cable buffer system can be installed at any position of structural connection according to a stress analysis result, the installation number is not limited to 8 pieces shown in fig. 9, the reasonable number can be adjusted according to design parameters, and in addition, the installation direction and the orientation of the self-resetting ring spring cable buffer system 4 between two adjacent beams (the left beam 19 and the right beam 20) are not limited to the horizontal direction, and the self-resetting ring spring cable buffer system can also be in the form of inclining towards a certain angle and the like.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A self-resetting ring spring inhaul cable buffer system is characterized by comprising:
a first apertured member and a second apertured member respectively disposed on two adjacent structures to be cushioned: reserved pore channels are processed on the first pore-forming component and the second pore-forming component;
the two ends of the ring spring inhaul cable component are respectively arranged on the first opening component and the second opening component: the semi-spherical hinge is installed in a reserved hole channel in a rotating fit mode, the two connecting screw rods penetrate through the semi-spherical hinge respectively, the two connecting screw rods penetrate through the end portions of the semi-spherical hinge respectively and are connected through the stranded wires, and the ring spring group is further sleeved on the connecting screw rods.
2. The self-resetting ring spring inhaul cable buffering system according to claim 1, wherein the opposite surfaces of the first opening member and the second opening member are inner sides, and the reserved hole channel is divided into a cylindrical hole section, a hemispherical hole section and a circular truncated cone hole section which are sequentially communicated from outside to inside, wherein the shape of the hemispherical hole section is matched with that of the hemispherical hinge, and the circular truncated cone hole section is in a horn mouth shape.
3. A self-resetting circlip cable damping system according to claim 2, characterised in that the diameter of said cylindrical bore section is the same as the diameter of said hemispherical bore section;
the diameter of the smaller end of the circular truncated cone hole section is not less than twice of the diameter of the stranded wire, and the rotatable hemispherical hinge is ensured not to slide out of the circular truncated cone hole section when rotating at the maximum angle.
4. The self-resetting ring spring inhaul cable buffering system according to claim 1, wherein a fastening nut is further sleeved on the connecting screw rod, and two ends of the ring spring group are respectively hinged to a hemisphere and compressed by the fastening nut.
5. The self-resetting ring spring cable buffering system of claim 4, wherein a washer is further provided between the fastening nut and the ring spring set.
6. The self-resetting tension ring cable buffering system of claim 1, wherein the first and second apertured members are made of metal or concrete.
7. The self-resetting tension ring cable buffering system according to claim 6, wherein when the first and second perforated members are made of concrete, the surface of the reserved hole is covered with a contact surface protecting layer.
8. A seat comprising a self-resetting tension ring cable buffering system as claimed in any one of claims 1 to 7, and an upper seat plate as a first opening member and a lower seat plate as a second opening member, respectively, and end bending anchors fixed to the upper seat plate and the lower seat plate, respectively.
9. A support according to claim 8, wherein the bent-end anchor is fixedly provided to the first or second apertured member by means of an anchor bolt, and wherein a rubber washer is provided at a portion of the bent-end anchor in contact with the first or second apertured member.
10. A bridge comprising a first beam, a second beam, and the self-resetting ring spring cable bumper system of any one of claims 1-7, the self-resetting ring spring cable bumper system being located between the first beam and the second beam, and an access man way and an access well being provided on the first beam and the second beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010975141.0A CN112144374A (en) | 2020-09-16 | 2020-09-16 | Self-resetting ring spring inhaul cable buffering system, support and bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010975141.0A CN112144374A (en) | 2020-09-16 | 2020-09-16 | Self-resetting ring spring inhaul cable buffering system, support and bridge |
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| CN112144374A true CN112144374A (en) | 2020-12-29 |
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| CN202010975141.0A Pending CN112144374A (en) | 2020-09-16 | 2020-09-16 | Self-resetting ring spring inhaul cable buffering system, support and bridge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813808A (en) * | 2020-12-31 | 2021-05-18 | 同济大学 | Double-wire-prevention limiting support based on shape memory alloy disc spring-inhaul cable system |
| CN113818330A (en) * | 2021-10-13 | 2021-12-21 | 同济大学 | Staggered embedded self-reset energy consumption buffering limiting device |
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