CN213925829U - Self-resetting hollow pier - Google Patents
Self-resetting hollow pier Download PDFInfo
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- CN213925829U CN213925829U CN202022541902.XU CN202022541902U CN213925829U CN 213925829 U CN213925829 U CN 213925829U CN 202022541902 U CN202022541902 U CN 202022541902U CN 213925829 U CN213925829 U CN 213925829U
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Abstract
The utility model discloses a self-resetting hollow pier, a foundation and a cap beam are positioned above and below a hollow column, an upper protection plate is arranged on the lower end surface of the cap beam, a lower protection plate is arranged on the upper end surface of the foundation, an energy consumption sleeve is detachably arranged on the periphery of the hollow column, one end close to the upper protection plate is an upper energy consumption sleeve, one end close to the lower protection plate is a lower energy consumption sleeve, a fixing member is arranged on the periphery of the energy consumption sleeve, the fixing member can detachably fix the energy consumption sleeve on the hollow column, the upper end surface of the upper protection plate contacts the cap beam, the lower end surface contacts the upper energy consumption sleeve, the upper end surface of the lower protection plate contacts the lower energy consumption sleeve, the lower end surface contacts the foundation, a plurality of post-tensioning prestressed ribs are arranged in the hollow column, the upper ends of the post-tensioning prestressed ribs pass through the upper protection plate and extend into the cap beam, the lower ends pass through the lower protection plate and extend into the foundation, and the two ends of the post-tensioning prestressed ribs are respectively fixed on the upper end surface of the cap beam and the lower end surface of the foundation, the self-resetting hollow pier enables the energy consumption sleeve to be easily replaced, reduces maintenance cost and improves the recovery capability after an earthquake.
Description
Technical Field
The utility model relates to a building structure technical field specifically relates to a from hollow pier that restores to throne.
Background
Under the action of strong earthquake, the end part of the pier of the traditional earthquake-resistant bridge is damaged, the repair of the damage is time-consuming, and the recovery of the traffic after the earthquake is seriously influenced. In order to solve the above problems, in recent years, researchers have proposed a self-resetting rocking pier. The pier can still realize self-restoration after large lateral displacement, and basically has no damage after earthquake. However, for the common reinforced concrete self-resetting bridge pier, the edge concrete of the bridge pier is easy to damage in the swinging process, so that the repairing is difficult, a large amount of prestress loss is caused, and the self-resetting capability of the bridge pier is greatly weakened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a from hollow pier that restores to throne to solve the problem that above-mentioned prior art exists, make from the energy consumption cover of hollow pier that restores to throne easily change, reduce the maintenance cost, and shake the back recovery ability and improve.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a self-resetting hollow pier, which comprises a cap beam, a hollow column and a foundation, wherein the foundation is positioned below the hollow column, the cap beam is positioned above the hollow column, an upper protection plate is arranged on the lower end surface of the cap beam, a lower protection plate is arranged on the upper end surface of the foundation, an energy consumption sleeve is detachably arranged on the periphery of the hollow column, one end close to the upper protection plate is an upper energy consumption sleeve, one end close to the lower protection plate is a lower energy consumption sleeve, a fixing member is arranged on the hollow column, the fixing member can detachably fix the energy consumption sleeve on the hollow column and is used for limiting the axial movement of the energy consumption sleeve relative to the hollow column, the periphery of the upper energy consumption sleeve is an upper fixing member, the periphery of the lower energy consumption sleeve is a lower fixing member, the upper end surface of the upper protection plate is contacted with the cap beam, the lower end surface is contacted with the upper energy consumption sleeve, the upper end face of lower guard plate contacts lower power consumption cover, lower terminal surface contact the basis, be equipped with a plurality of post-tensioned prestressing tendons in the hollow column, the upper end of post-tensioned prestressing tendons is passed the upper guard plate stretches into to in the cap roof beam, the lower extreme of post-tensioned prestressing tendons passes the lower guard plate stretches into to in the basis, just the both ends of post-tensioned prestressing tendons are fixed respectively the up end of cap roof beam with the lower terminal surface on basis.
Preferably, the fixing piece is made of steel material; the mounting includes screw rod, nut and two the same curved plate, one side of curved plate is the curved surface, and the opposite side is the plane, just the curved surface can with the laminating of energy consumption cover outer wall, the curved plate middle part is equipped with the through-hole, the energy consumption cover is in correspondence the position of through-hole is equipped with the connecting hole, the through-hole with the connecting hole all is used for penetrating and wearing out of screw rod, the screw rod with the center pin of hollow post is perpendicular, just the both ends of screw rod loop through hollow post lateral wall the connecting hole with the through-hole is worn out to the external world, the both ends of screw rod are passed through respectively the nut is fixed the curved plate outer wall.
Preferably, the post-tensioned tendons are not less than four, and each post-tensioned tendon is uniformly arranged around the central axis of the hollow column in the circumferential direction.
Preferably, the hollow column includes inner tube and outer tube, the outer pipe box is located the inner tube periphery, just the inner tube with the outer tube is coaxial to be set up, the inner tube with fill concrete between the outer tube, each post-tensioned prestressing tendons is located in the inner tube, just the both ends of post-tensioned prestressing tendons stretch out respectively the both ends of inner tube.
Preferably, the upper end and the lower end of each post-tensioned prestressed tendon are respectively fixed on the upper end surface of the cap beam and the lower end surface of the foundation through an anchoring device.
Preferably, the lower extreme of basis is equipped with the manhole, the manhole is in the perpendicular to the direction of post-tensioned prestressing tendons link up the basis, the lower extreme of post-tensioned prestressing tendons stretch into to in the manhole, just the manhole is used for constructor to get into and install anchoring device.
Preferably, the upper protection plate and the lower protection plate are common steel plates, a plurality of upper anchoring reinforcing steel bars are fixed to the upper end of the upper protection plate, the upper anchoring reinforcing steel bars stretch into the cap beam and are fixed, a plurality of lower anchoring reinforcing steel bars are fixed to the lower end of the lower protection plate, and the lower anchoring reinforcing steel bars stretch into the foundation and are fixed.
Preferably, the energy dissipation sleeve is made of mild steel materials, and the energy dissipation sleeve comprises two identical half rings, two ends of each half ring are respectively provided with a flange, the flange is provided with a plurality of bolt holes, and bolts sequentially penetrate through the bolt holes in the two flanges to connect the two half rings.
The utility model discloses for prior art gain following technological effect:
the utility model provides a self-reset hollow pier, the hollow column is located between the upper guard plate and the lower guard plate, prevent the hollow column from destroying the cap beam and the concrete on the basis when swaying, thereby prevent the loss of prestress, reduce the maintenance cost, the hollow column is close to the one end of the upper guard plate and can be disassembled and installed with an upper energy dissipation sleeve, the other end can be disassembled and installed with a lower energy dissipation sleeve, the upper end surface of the upper guard plate contacts the cap beam, the lower end surface contacts the upper energy dissipation sleeve, the upper end surface of the lower guard plate contacts the lower energy dissipation sleeve, the lower end surface contacts the basis, thereby the upper energy dissipation sleeve and the lower energy dissipation sleeve are used as the footing points when swaying the hollow column, the damage of the structure is concentrated on the upper energy dissipation sleeve and the lower energy dissipation sleeve, the upper energy dissipation sleeve and the lower energy dissipation sleeve can bear larger deformation, increase the energy dissipation, improve the self-reset capability of the pier, when the upper energy dissipation sleeve or the lower energy dissipation sleeve structure is destroyed, the pier can be directly replaced, the repair cost is saved, an upper fixing piece is detachably arranged on the periphery of the upper energy consumption sleeve and used for axially positioning the upper energy consumption sleeve, a lower fixing piece is detachably arranged on the periphery of the lower energy consumption sleeve and used for axially positioning the lower energy consumption sleeve, the inner wall of the upper fixing piece is attached to the outer wall of the upper energy consumption sleeve, the inner wall of the lower fixing piece is attached to the outer wall of the lower energy consumption sleeve, the upper energy dissipation sleeve and the lower energy dissipation sleeve are fixed through close fitting, the replacement is convenient, the maintenance cost after earthquake is reduced, a plurality of post-tensioned prestressed tendons are arranged in the hollow column, the upper ends of the post-tensioned prestressed tendons penetrate through the upper protection plate and extend into the cap beam, the lower ends of the post-tensioned prestressed tendons penetrate through the lower protection plate and extend into the foundation, and the two ends of the post-tensioned prestressed tendon are respectively fixed on the upper end surface of the cap beam and the lower end surface of the foundation, so that the tension of the post-tensioned prestressed tendon is effectively transmitted to the cap beam and the foundation, and the pier successfully realizes self-resetting.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a self-resetting hollow pier provided in the first embodiment;
fig. 2 is a front view of the self-resetting hollow pier of fig. 1;
fig. 3 is a schematic view illustrating a lower protection plate welded with lower anchoring bars in a self-resetting hollow pier according to an embodiment;
fig. 4 is a schematic structural diagram of an energy dissipation sleeve in a self-resetting hollow pier provided by the embodiment one;
FIG. 5 is a schematic structural diagram of a fastener in a self-resetting hollow pier according to an embodiment;
in the figure: 1-hollow column, 21-upper fixing piece, 211-curved plate, 212-through hole, 22-lower fixing piece, 31-upper energy dissipation sleeve, 32-lower energy dissipation sleeve, 321-semi ring, 322-flange, 323-bolt, 324-connecting hole, 41-upper protection plate, 42-lower protection plate, 51-upper anchoring steel bar, 52-lower anchoring steel bar, 6-cap beam, 7-foundation, 71-manhole, 8-post-tensioning prestressed bar, 81-upper anchoring device and 82-lower anchoring device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a from hollow pier that restores to it is poor to solve current pier shake afterrepair ability, and the technical problem that the maintenance cost is high.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example one
As shown in fig. 1 to 5, the utility model provides a self-resetting hollow pier, which comprises a cap beam 6, a hollow column 1 and a foundation 7, wherein the foundation 7 is positioned below the hollow column 1, the cap beam 6 is positioned at the upper end of the hollow column 1, an upper protection plate 41 is arranged on the lower end surface of the cap beam 6, a lower protection plate 42 is arranged on the upper end surface of the foundation 7, and the hollow column 1 is positioned between the upper protection plate 41 and the lower protection plate 42, so that the contact position of the hollow column 1 and the cap beam 6 is protected by the upper protection plate 41, the contact position of the hollow column 1 and the foundation 7 is protected by the lower protection plate 42, the hollow column 1 is prevented from damaging concrete on the cap beam 6 and the foundation 7 during swinging, the loss of prestress is prevented, the maintenance cost is reduced, an energy consumption sleeve is detachably arranged at the periphery of the hollow column 1, one end close to the upper protection plate 41 is an upper energy consumption sleeve 31, one end close to the lower protection plate 42 is a lower energy consumption sleeve 32, the upper end surface of the upper protection plate 41 is contacted with the cap beam 6, the lower end surface is contacted with the upper energy consumption sleeve 31, the upper end surface of the lower protection plate 42 is contacted with the lower energy consumption sleeve 32, and the lower end surface is contacted with the foundation 7, so that the upper energy consumption sleeve 31 and the lower energy consumption sleeve 32 are used as footholds when the hollow column 1 swings, the damage of the structure is concentrated on the upper energy consumption sleeve 31 and the lower energy consumption sleeve 32, the upper energy consumption sleeve 31 and the lower energy consumption sleeve 32 are preferably made of materials with better plasticity, can bear larger deformation, increase energy dissipation and improve the self-resetting capability of a pier, when the structure of the upper energy consumption sleeve 31 or the lower energy consumption sleeve 32 is damaged, the upper energy consumption sleeve 31 or the lower energy consumption sleeve 32 can be directly replaced, the repairing cost is saved, the fixing piece is arranged on the hollow column 1, the fixing piece can detachably fix the energy consumption sleeve on the hollow column 1 and is used for limiting the axial movement of the energy consumption sleeve relative to the hollow column 1, the upper fixing piece 21 is arranged on the periphery of the upper fixing piece 31, the lower energy consumption sleeve 32 is arranged on the lower fixing piece 22, the inner wall of going up mounting 21 and the laminating of last power consumption cover 31 outer wall, the inner wall of lower mounting 21 and the laminating of lower power consumption cover 32 outer wall, be equipped with a plurality of post-tensioned prestressing tendons 8 in the hollow column 1, the upper end of post-tensioned prestressing tendons 8 passes upper shield 41 and stretches into in cap beam 6, the lower extreme of post-tensioned prestressing tendons 8 passes lower shield 42 and stretches into to basis 7 in, and the lower terminal surface at the up end of cap beam 6 and basis 7 is fixed respectively at the both ends of post-tensioned prestressing tendons 8, thereby with cap beam 6, hollow column 1 and basis 7 are fixed together, guarantee simultaneously that the tension of post-tensioned prestressing tendons 8 effectively transmits on cap beam 6 and basis 7, make the pier successfully realize self-resetting.
Specifically, the fixing piece is made of steel material; the fixing piece comprises a screw rod, a nut and two identical curved plates 211, one side of each curved plate 211 is a curved surface, the other side of each curved plate is a plane, the shape of each curved plate 211 is similar to that of a groove formed in one side of a cuboid, the groove bottom of each curved plate is a curved surface, the curved surfaces are identical to the outer wall of the energy consumption sleeve in structure, the outer wall of the energy consumption sleeve can be completely attached to the curved surfaces, the position of the energy consumption sleeve is fixed and limited, a through hole 212 is formed in the middle of each curved plate 211, a connecting hole 324 is formed in the position, corresponding to the through hole 212, of the energy consumption sleeve, the through hole 212 and the connecting hole 324 are used for enabling the screw rod to penetrate in and out, the screw rod is perpendicular to the central shaft of the hollow column 1, the two ends of the screw rod penetrate out to the outside sequentially through the side wall of the hollow column 1, the connecting holes 324 and the through holes 212, the two ends of the screw rod are respectively fixed on the outer wall of the curved plates 211 through the nuts, the fixing piece is convenient to install and disassemble, and simple in structural connection, and can be prefabricated for bridge construction, reduce labour cost and cost of maintenance.
Post-tensioned prestressed tendons 8 are no less than four, and each post-tensioned prestressed tendon 8 is evenly arranged around the central axis circumference of the hollow column 1, so that the influence on the penetration and the penetration of the screw rod is prevented.
The post-tensioned prestressed tendon 8 applies prestressed tendon by adopting a post-tensioning method, has higher yield strength, ensures that the structure has enough self-resetting capability, the upper end and the lower end of the post-tensioned prestressed tendon 8 are respectively fixed on the upper end surface of the cap beam 6 and the lower end surface of the foundation 7 through anchoring devices, the upper anchoring device 81 is positioned at the upper end of the post-tensioned prestressed tendon 8, the lower anchoring device 82 is positioned at the lower end of the post-tensioned prestressed tendon 8, the anchoring devices can be mechanical anchoring, welding anchoring or other devices specially aiming at prestressed tendon anchoring, the anchoring devices do not generate large deformation or damage and are firmly connected with the post-tensioned prestressed tendon 8, ensures that the tension of the post-tensioned prestressed tendon 8 is effectively transmitted to the cap beam 6 and the foundation 7, so that the self-resetting of the self-resetting hollow pier is successfully realized, in the actual construction process, in order to ensure better connection and self-resetting effect, a plurality of post-tensioned prestressed tendons 8 are parallel to each other, and the both ends of each post-tensioned prestressed tendon 8 are equallyd divide and are stretched into respectively in cap roof beam 6 and the basis 7, when guaranteeing that the pier sways to the maximum angle, its pulling force does not reach its yield strength.
The lower extreme of basis 7 is equipped with manhole 71, and manhole 71 link up basis 7 in the direction of perpendicular to post-tensioned prestressing tendons 8, and the lower extreme of post-tensioned prestressing tendons 8 stretches into in manhole 71, and manhole 71 is used for constructor to get into and installs anchor, convenient construction.
As shown in fig. 3, not only is the schematic connection between the upper protection plate 41 and the upper anchoring bars 51, but also the schematic connection between the lower protection plate 42 and the lower anchoring bars 52, both the upper protection plate 41 and the lower protection plate 42 are made of common steel plates, the upper end of the upper protection plate 41 is fixed with a plurality of upper anchoring bars 51, the upper anchoring bars 51 extend into the hat beam 6 and are fixed, the lower end of the lower protection plate 42 is fixed with a plurality of lower anchoring bars 52, the lower anchoring bars 52 extend into the foundation 7 and are fixed, so as to ensure the connection stability between the upper protection plate 41 and the hat beam 6, and the connection stability between the lower protection plate 42 and the foundation 7, and the upper anchoring bars 51 and the lower anchoring bars 52 both have sufficient anchoring lengths, so as to ensure that the sufficient adhesive force between the upper protection plate 41 and the hat beam 6, and between the lower protection plate 42 and the foundation 7, preferably, both the number of the upper anchoring bars 51 and the lower anchoring bars 52 is not less than 4, the aperture on the upper protection plate 41 and the aperture on the lower protection plate 42 are not more than the internal diameter of hollow column 1, and the upper protection plate 41 is guaranteed to be in complete contact with the hollow column 1, and the lower protection plate 42 is guaranteed to be in complete contact with the hollow column 1, so that the force transfer area between the upper protection plate 41 and the hollow column 1, and between the lower protection plate 42 and the hollow column 1 is guaranteed, and the acting force is reduced.
As shown in fig. 4, the energy dissipation sleeve is made of mild steel, which is a steel material with low carbon content and good plasticity, and can bear large deformation and increase energy dissipation; the energy consumption sleeve comprises two half rings 321 with the same structure, two ends of each half ring 321 are respectively provided with a flange 322, the flange 322 is provided with a plurality of bolt holes, and bolts 323 sequentially penetrate through the bolt holes in the two flanges 322 to connect the two half rings 321, so that the energy consumption sleeve is convenient to mount and dismount and more preferable, and the half rings 321 and the flanges 322 corresponding to the two ends of the half rings 321 can be integrally formed.
Example two
As shown in fig. 1 to 5, the present embodiment provides a construction method of a self-resetting hollow pier, which is used for forming the self-resetting hollow pier in the first embodiment, and includes the following steps:
s1: welding at least four upper anchoring steel bars 51 on one surface of an upper protection plate 41, wherein the upper anchoring steel bars 51 are used for extending into and being fixed inside a cap beam 6, the upper anchoring steel bars 51 have enough anchoring length, so that enough adhesion force between the upper protection plate 41 and the cap beam 6 is ensured, prefabricating the cap beam 6 provided with the upper protection plate 41, reserving a plurality of pore channels for installing post-tensioned prestressed tendons 8 on the cap beam 6, ensuring that the pore channel diameter of the upper protection plate 41 for penetrating the post-tensioned prestressed tendons 8 is not more than the inner diameter of a hollow column 1, ensuring the complete contact between the upper protection plate 41 and the hollow column 1, protecting the cap beam 6 through the upper protection plate 41, preventing the hollow column 1 from damaging the structure of the cap beam 6 in the swinging process, prefabricating the hollow column 1, coaxially sleeving two steel pipes with different diameters together, respectively an inner pipe 12 and an outer pipe 11, filling concrete in a gap between the two steel pipes, forming a hollow double-steel-pipe concrete column; at least four lower anchoring bars 52 are welded to one surface of the lower guard plate 42, the lower anchoring bars 52 are adapted to be inserted and fixed into the interior of the foundation 7, the lower anchoring reinforcing steel bar 52 has enough anchoring length, so that enough adhesive force is ensured between the lower protection plate 42 and the foundation 7, a pore passage for installing the post-tensioned prestressed reinforcement 8 in the foundation 7 is reserved, the position of the lower protection plate 42 is positioned, concrete is poured to form the foundation 7, a manhole 71 is reserved at the lower end of the foundation 7, a constructor can enter the manhole 71, fixing the lower end of the post-tensioned prestressed tendon 8, installing a lower protection plate 42, ensuring that the diameter of a pore passage for penetrating through the post-tensioned prestressed tendon 8 on the lower protection plate 42 is not more than the inner diameter of the hollow column 1 so as to ensure the complete contact between the lower protection plate 42 and the hollow column 1, the foundation 7 is protected by the lower protection plate 42, so that the structure of the foundation 7 is prevented from being damaged in the swinging process of the hollow column 1;
s2: after the concrete of the foundation 7 is solidified and integrated with the lower protection plate 42, the hollow column 1 is placed on the lower protection plate 42, so that the bearing capacity of the foundation 7 on the hollow column 1 is ensured;
s3: placing the prefabricated cap beam 6 on the hollow column 1;
s4: the post-tensioned prestressed tendon 8 sequentially passes through the reserved hole channel on the cap beam 6, the reserved hole channel on the hollow column 1 and the base 7 to apply prestress, and two ends of the post-tensioned prestressed tendon 8 are respectively fixed on the upper end surface of the cap beam 6 and the lower end surface of the base 7 (namely the inner top surface of the manhole 71), the steel bar applying prestress by adopting a post-tensioning method has higher yield strength, and ensures that the structure has enough self-resetting capability, preferably, the upper end and the lower end of the post-tensioned prestressed tendon 8 are respectively fixed on the upper end surface of the cap beam 6 and the lower end surface of the base 7 through anchoring devices, the anchoring devices can be mechanical anchoring, welding anchoring or other devices specially aiming at the prestressed tendon anchoring, the anchoring devices do not generate larger deformation or damage, and are firmly connected with the post-tensioned prestressed tendon, so that the tension of the post-tensioned prestressed tendon is effectively transmitted to the cap beam 6 and the base 7, and the self-resetting of the self-resetting hollow pier is successfully realized, in the actual construction process, in order to ensure better connection and self-resetting effects, the post-tensioned prestressed tendons 8 are parallel to each other, two ends of each post-tensioned prestressed tendon 8 respectively extend into the cap beam 6 and the foundation 7, and the tension of the pier does not reach the yield strength when the pier swings to the maximum angle;
s5: the upper energy consumption sleeve 31 and the lower energy consumption sleeve 32 are respectively detachably arranged at the upper end and the lower end of the hollow column 1, the upper end of the upper energy consumption sleeve 31 is contacted with the upper protection plate 41, the lower end of the lower energy consumption sleeve 32 is contacted with the lower protection plate 42, the upper fixing member 21 is detachably arranged at the periphery of the upper energy consumption sleeve 31, the lower fixing member 22 is detachably arranged at the periphery of the lower energy consumption sleeve 32, the inner wall of the upper fixing member 21 is attached to the outer wall of the upper energy consumption sleeve 31, the inner wall of the lower fixing member 22 is attached to the outer wall of the lower energy consumption sleeve 32 so as to limit the upper energy consumption sleeve 31 and the lower energy consumption sleeve 32, thereby preventing the upper energy consumption sleeve 31 and the lower energy consumption sleeve 32 from sliding and influencing the self-resetting of a bridge pier, meanwhile, the detachable connection mode can facilitate the replacement of the upper energy consumption sleeve 31 and the lower energy consumption sleeve 32, the upper energy consumption sleeve 31 and the lower energy consumption sleeve 32 are used as standing points when the hollow column 1 swings, so that the structural damage is concentrated on the upper energy consumption sleeve 31 and the lower energy consumption sleeve 32, the upper energy dissipation sleeve 31 and the lower energy dissipation sleeve 32 are preferably made of mild steel materials, the mild steel is steel with low carbon content and good plasticity, can bear large deformation, increases energy dissipation, and improves self-resetting capability of a pier, and the upper energy dissipation sleeve 31 and the lower energy dissipation sleeve 32 are preferably identical in structure and comprise two half rings 321 with the same structure, the two half rings 321 can be buckled, two ends of each half ring 321 are respectively provided with a flange 322, the flange 322 is provided with a plurality of bolt holes, when the two half rings 321 are buckled, the flange 322 on one half ring 321 is overlapped with the flange 322 on the other half ring 321, the positions of the bolt holes are overlapped, and the bolt holes sequentially penetrate through the bolt holes on the two flanges 322 to be connected, so that the upper energy dissipation sleeve 31 and the lower energy dissipation sleeve 32 are convenient to install and disassemble, the replacement is convenient, and the upper fixing member 21 and the lower fixing member 22 are preferably identical in structure and comprise screws, Nut and two the same curved plate 211, during the installation, pass a curved plate 211, a semi-ring 321, hollow column 1, another semi-ring 321, another curved plate 211 with the screw rod in proper order to make a screw rod both ends respectively threaded connection nut, realize going up the fixed of mounting 21 and lower mounting 22 position, thereby realize fixed and spacing to last power consumption cover 31 and lower power consumption cover 32, also improve dismouting efficiency when guaranteeing the power consumption effect, thereby reduce later stage restoration labour and cost.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. The utility model provides a from hollow pier that restores to throne which characterized in that: the energy-consuming hollow column comprises a cap beam, a hollow column and a foundation, wherein the foundation is positioned below the hollow column, the cap beam is positioned above the hollow column, an upper protection plate is installed on the lower end face of the cap beam, a lower protection plate is installed on the upper end face of the foundation, an energy-consuming sleeve is detachably installed on the periphery of the hollow column, one end close to the upper protection plate is an upper energy-consuming sleeve, one end close to the lower protection plate is a lower energy-consuming sleeve, a fixing part is installed on the hollow column, the fixing part can detachably fix the energy-consuming sleeve on the hollow column and is used for limiting the axial movement of the energy-consuming sleeve relative to the hollow column, the periphery of the upper energy-consuming sleeve is an upper fixing part, the periphery of the lower energy-consuming sleeve is a lower fixing part, the upper end face of the upper protection plate is in contact with the cap beam, the lower end face of the upper energy-consuming sleeve is in contact with the upper energy-consuming sleeve, and the upper end face of the lower protection plate is in contact with the lower energy-consuming sleeve, the lower end face contacts the foundation, a plurality of post-tensioned prestressed tendons are arranged in the hollow column, the upper ends of the post-tensioned prestressed tendons penetrate through the upper protection plate and stretch into the cap beam, the lower ends of the post-tensioned prestressed tendons penetrate through the lower protection plate and stretch into the foundation, and the two ends of the post-tensioned prestressed tendons are fixed to the upper end face of the cap beam and the lower end face of the foundation respectively.
2. The self-resetting hollow pier according to claim 1, wherein: the fixing piece is made of steel material; the mounting includes screw rod, nut and two the same curved plate, one side of curved plate is the curved surface, and the opposite side is the plane, just the curved surface can with the laminating of energy consumption cover outer wall, the curved plate middle part is equipped with the through-hole, the energy consumption cover is in correspondence the position of through-hole is equipped with the connecting hole, the through-hole with the connecting hole all is used for penetrating and wearing out of screw rod, the screw rod with the center pin of hollow post is perpendicular, just the both ends of screw rod loop through hollow post lateral wall the connecting hole with the through-hole is worn out to the external world, the both ends of screw rod are passed through respectively the nut is fixed the curved plate outer wall.
3. The self-resetting hollow pier according to claim 2, wherein: the post-tensioned prestressed tendons are not less than four, and the post-tensioned prestressed tendons are uniformly arranged around the central shaft of the hollow column in the circumferential direction.
4. The self-resetting hollow pier according to claim 1, wherein: the hollow column comprises an inner pipe and an outer pipe, the outer pipe is sleeved on the periphery of the inner pipe, the inner pipe and the outer pipe are coaxially arranged, concrete is filled between the inner pipe and the outer pipe, the post-tensioned prestressed tendons are located in the inner pipe, and two ends of the post-tensioned prestressed tendons respectively extend out of two ends of the inner pipe.
5. The self-resetting hollow pier according to claim 1, wherein: and the upper end and the lower end of each post-tensioned prestressed tendon are respectively fixed on the upper end surface of the cap beam and the lower end surface of the foundation through anchoring devices.
6. The self-resetting hollow pier according to claim 5, wherein: the lower extreme of basis is equipped with the manhole, the manhole is at the perpendicular to the direction of post-tensioned prestressing tendons link up the basis, the lower extreme of post-tensioned prestressing tendons stretch into extremely in the manhole, just the manhole is used for constructor to get into and install anchoring device.
7. The self-resetting hollow pier according to claim 1, wherein: go up the guard plate with the guard plate is the steel sheet down, the upper end of going up the guard plate is fixed with a plurality of anchor reinforcing bars of going up, go up the anchor reinforcing bar stretch into to cap beam is interior and fixed, the lower extreme of guard plate is fixed with a plurality of anchor reinforcing bars down, the anchor reinforcing bar stretches into to down in the basis and fixed.
8. The self-resetting hollow pier according to claim 1, wherein: the energy dissipation sleeve is made of mild steel materials and comprises two identical half rings, two ends of each half ring are respectively provided with a flange, the flange is provided with a plurality of bolt holes, and bolts sequentially penetrate through the two bolt holes in the flanges to connect the two half rings.
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| CN202022541902.XU CN213925829U (en) | 2020-11-06 | 2020-11-06 | Self-resetting hollow pier |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112239996A (en) * | 2020-11-06 | 2021-01-19 | 华侨大学 | Self-resetting hollow pier and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112239996A (en) * | 2020-11-06 | 2021-01-19 | 华侨大学 | Self-resetting hollow pier and construction method thereof |
| CN112239996B (en) * | 2020-11-06 | 2024-07-23 | 华侨大学 | Self-resetting hollow pier and construction method thereof |
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