CN110067212A - Fast repairing method after a kind of shake of reinforced concrete bridge pier - Google Patents
Fast repairing method after a kind of shake of reinforced concrete bridge pier Download PDFInfo
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- CN110067212A CN110067212A CN201910376509.9A CN201910376509A CN110067212A CN 110067212 A CN110067212 A CN 110067212A CN 201910376509 A CN201910376509 A CN 201910376509A CN 110067212 A CN110067212 A CN 110067212A
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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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The invention discloses fast repairing methods after a kind of shake of reinforced concrete bridge pier, belong to field of civil engineering.Cup spring, horizontal screw bolt, vertical screw rod, high-strength bolt, vertical muscle, polytetrafluoroethylene film is combined by cushion cap, bridge pier, high fluidity high-early (strength) cement mortar, stainless steel sleeve pipe, energy consumption angle steel, SMA to form.The thought of this method is that the bridge pier for consolidating former pier bottom is changed into and waves bridge pier.The concrete of damage is removed first when reparation, and muscle is indulged into plastic hinge region and is truncated in bridge pier bottom.Simultaneously high fluidity high-early (strength) cement mortar is perfused in the stainless steel outer packed casing in plastic hinge region in casing.Consume energy angle steel and the external dissipative devices of SMA combination cup spring composition.This method constructing operation is simple, and required time is short, and the bridge pier after reparation, which becomes, waves system, avoids the damage again that rear abutment is repaired under macroseism.Stainless steel sleeve pipe has been obviously improved the durability for repairing bridge pier.External dissipative devices have runback bit function, avoid the destruction of angle steel, and simplicity is easily repaired.
Description
Technical field
The present invention relates to the reinforced concrete bridge piers repaired after shake, in particular to are based on waving force-mechanism and external energy-consumption
Reinforced concrete bridge pier is repaired after the shake of device.
Background technique
Reinforced concrete bridge pier is the main lateral resistant member of science of bridge building, and the earthquake of domestic and international all previous violent earthquake shows
Reinforced concrete bridge pier is easy to destroy under macroseism, not only will cause serious economic loss and casualties, but will
The timely development for seriously affecting disaster relief work after shaking, to aggravate earthquake disaster.
The bridge pier damaged after shake is quickly repaired, the expense of reconstruction can be not only saved, it is often more important that rapidly
Resume traffic lifeline engineering, it is ensured that the timely development of post-earthquake emergency response rescue work.Regrettably, the bridge carried out both at home and abroad at present
The research of recovery technique is few after pier shake, and has the following problems: (1) the bridge pier shock resistance after repairing is weak, it is easy under
More serious destruction occurs in the earthquake once occurred.(2) long the time required to repairing bridge pier, transportation lifeline is fast after being unsatisfactory for shake
Speed protects logical requirement.(3) the bridge pier durability after repairing is poor, becomes temporary building, need to remove reconstruction after reparation soon.
In summary background, reinforced concrete bridge pier are easy to destroy under macroseism, seriously affect post-earthquake emergency response and rescue
Help the development of work.The requirement of recovery technique is quickly to repair first after bridge pier shake, in order to the network that resumes traffic rapidly, separately
Outside, the bridge pier after reparation should not become temporary building, and should have superior anti-seismic performance and durability.It is therefore proposed that one
Kind can restore rapidly the use function after bridge pier shake, and the bridge pier after reparation has good anti-seismic performance and durability again,
The significant challenge faced as science of bridge building technical staff.
Summary of the invention
The present invention in view of the above technical problems, proposes fast repairing method after a kind of shake of reinforced concrete bridge pier.By cushion cap,
Bridge pier, high fluidity high-early (strength) cement mortar, stainless steel sleeve pipe, energy consumption angle steel, SMA combination cup spring, horizontal screw bolt, vertical screw rod,
High-strength bolt, vertical muscle, polytetrafluoroethylene film composition.In concrete operations, by the rebar truncated of destroyed area, high fluidity is utilized
High-early (strength) cement mortar repairs destroyed area, and high fluidity high-early (strength) cement mortar outer casing stainless steel casing.Using energy consumption angle steel and
SMA combines cup spring and forms external energy-consumption system.The recovery technique will be greatlyd save due to using high fluidity high-early (strength) cement mortar
The time repaired after shake is realized and quickly repairs.On force-mechanism, since vertical muscle has been truncated, the bridge pier after reparation, which becomes, to be shaken
Pendulum mass system, and since height flowing high-early (strength) cement mortar compression strength is high, it is strong that stainless steel outer packed casing significantly enhances its shearing resistance again
It spends, the bridge pier after repairing under macroseism is difficult to destroy, and has good durability.What energy consumption angle steel and SMA combination cup spring formed
External energy-consumption system can significantly increase the energy dissipation capacity for repairing rear abutment, and the use of SMA combination cup spring, significantly increase outer
It sets the deformability of dissipative devices and residual displacement after bridge pier shake can be reduced, angle steel is not easy to be pulled off under macroseism.
To achieve the above objectives, it can be achieved through the following technical solutions:
Fast repairing method after a kind of shake of reinforced concrete bridge pier, which is characterized in that by cushion cap (1), bridge pier (2), Gao Liu
Dynamic property high-early (strength) cement mortar (3), energy consumption angle steel (5), SMA combination cup spring (6), horizontal screw bolt (7-1), erects at stainless steel sleeve pipe (4)
Straight screw rod (7-2), high-strength bolt (8), vertical muscle (9), polytetrafluoroethylene film (10) composition.
SMA combination cup spring (6) is made of the SMA outer ring (12) and inner ring (13) mutually fastened.SMA outer ring (12) is by NiTi
Alloy is made, and high strength steel of the inner ring (13) by yield strength in 500-1000MPa is made.SMA outer ring (12) and inner ring (13)
It is annular in shape, it alternately uses from top to bottom.The inner ring surface of SMA outer ring (12) and the outer ring face contact of inner ring (13), mutually fasten,
And the equal outer patch polytetrafluoroethylene film (10) of outer ring surface of the inner ring surface of SMA outer ring (12) and inner ring (13).
SMA outer ring (12) totally 2, each SMA outer ring (12) includes 2 inner ring surfaces.Inner ring (13) totally 3, including it is upper interior
Ring (13-1), lower inner ring (13-3), middle inner ring (13-2) each 1.The upper surface of all SMA outer rings (12) and inner ring (13) is under
End face is plane.Upper inner ring (13-1), lower inner ring (13-3) respectively contain 1 outer ring surface, and middle inner ring (13-2) contains 2 outer rings
Face.
High fluidity high-early (strength) cement mortar (3) fluidity is greater than 300mm, and the lower 24 hours compression strength of room temperature is greater than 20MPa.
The construction procedure of fast repairing method after a kind of shake of reinforced concrete bridge pier are as follows: the first step, by bridge pier (2) plastic hinge
The broken concrete (11) in area is removed completely, and the vertical muscle (9) of bridge pier (2) destroyed area bottom is truncated.Second step, bridge pier
(2) destroyed area outer casing stainless steel casing (4), horizontal hole is reserved in stainless steel sleeve pipe (4), and horizontal screw bolt (7-1) passes through pre-
It stays horizontal hole and is fixed on stainless steel sleeve pipe (4) by high-strength bolt (8).Third step pours inside stainless steel sleeve pipe (4)
High fluidity high-early (strength) cement mortar (3).4th step drills in cushion cap (1), and high fluidity high-early (strength) cement mortar is perfused in hole
(3), then it is implanted into vertical screw rod (7-2).5th step, installation energy consumption angle steel (5) between bridge pier (2) and cushion cap (1).Consume energy angle steel
(5) vertical limb is connect by high-strength bolt (8) and horizontal screw bolt (7-1) with stainless steel sleeve pipe (4).The water of energy consumption angle steel (5)
Flat limb is connected by vertical screw rod (7-2) with cushion cap (1).6th step installs SMA group on the horizontal limb top of energy consumption angle steel (5)
Cyclization spring (6).SMA combines the top that cup spring (6) are fixed on energy consumption angle steel (5) horizontal limb by the high-strength bolt (8) of upper part.
SMA combines cup spring (6) self-locking preceding bearing capacity and is less than the corresponding bearing capacity of energy consumption angle steel (5) surrender.
Horizontal screw bolt (7-1), vertical screw rod (7-2) are respectively provided with screw thread.Horizontal screw bolt (7-1) is along stainless steel sleeve pipe (4) height
It spends direction and 2 rows is set, horizontal screw bolt (7-1) passes through stainless steel sleeve pipe (4), and high-strength spiral shell is arranged on the inside of stainless steel sleeve pipe (4)
Bolt (8), in order to the anchoring of horizontal screw bolt (7-1).On the outside of the stainless steel sleeve pipe (4), it will consume energy angle yet by high-strength bolt (8)
The vertical limb of steel (5) is connect with bridge pier (2).Vertical screw rod (7-2) is anchored in cushion cap by high fluidity high-early (strength) cement mortar (3)
(1) in, 1 row is only arranged in vertical screw rod (7-2).
The gap of 20mm-30mm is reserved between stainless steel sleeve pipe (4) and cushion cap (1).
The present invention by adopting the above technical scheme:
1. the bridge pier after repairing has very high shock resistance.Stainless steel outer packed casing will dramatically increase the early strong water of high flowing
The cementitiousness of cement mortar and existed concrete bridge increases the compression strength and ductility of high fluidity high-early (strength) cement mortar, increases
The shearing strength of high fluidity high-early (strength) cement mortar.So that the bridge pier after repairing is difficult to destroy.
2. on force-mechanism, by rebar truncated when due to repairing, and high fluidity high-early (strength) cement mortar and coagulation
Native tensile strength itself is not high, and under macroseism, reaction will be waved by repairing rear abutment, reduces the antidetonation of bridge pier by waving reaction
Ability need, this will further enhance the shock resistance for repairing rear abutment, is allowed to not destroy.
3. the recovery technique situ wet operation is few, easy for construction.The high fluidity high-early (strength) cement mortar poured can be in short-term
Interior hardening simultaneously has very high compression strength, short the time required to the recovery technique, it can be achieved that the effect quickly repaired after shake.
4. stainless steel sleeve pipe, Gao Liudong high-early (strength) cement mortar etc. all have good durability, after significantly increasing reparation
The durability of bridge pier.
5. energy consumption angle steel and SMA combination cup spring constitute external energy-consumption system.Firstly, the external energy-consumption system can be replaced quickly
It changes, even if being destroyed under future macroseism, can also quickly repair.It is used in series secondly, SMA combines cup spring with energy consumption angle steel,
The Deformation Demands of energy consumption angle steel will be substantially reduced, energy consumption angle steel will be not susceptible to tensile failure model, and significantly increase external energy-consumption body
The deformability of system.
The inner ring surface of 6.SMA outer ring and the equal outer patch polytetrafluoroethylene film of the outer ring surface of inner ring have very little between each other
Frictional force.Under pressured state, SMA combination cup spring relies primarily on the tensioning energy consumption of SMA outer ring, and since SMA outer ring is by NiTi
Alloy is made, and SMA outer ring is shunk after unloading, and SMA, which combines cup spring, has good self-resetting capability.
7. in design, the self-locking preceding bearing capacity of SMA combination cup spring can be designed less than energy consumption angle steel and surrender corresponding bearing capacity.
When SMA combines cup spring compressive deformation to a certain extent, inner ring contacts with each other, the no longer tensioning of SMA outer ring, and SMA combines cup spring " certainly
Lock ".Since SMA combination cup spring has the function of " self-locking ", when the deformation of SMA combination cup spring reaches maximum, SMA combines cup spring certainly
Lock, mainly the inner ring made of high-strength steel undertakes self-locking rear load, can effectively protect SMA combination cup spring and does not destroy.SMA group
Before cyclization spring is self-locking, since energy consumption angle steel is not yet surrendered, and SMA combination cup spring has good self-resetting capability, after unloading,
SMA combination cup spring and energy consumption angle steel automatically reset, and will substantially reduce bridge pier residual deformation.
Compared with recovery technique after traditional bridge pier shake, the invention patent has following 6 outstanding advantages: first, repairing
The shock resistance of rear abutment is high.Due to reducing the antidetonation demand of reparation bridge pier after shake using the system of waving, and it is stainless steel outer packed
Casing significantly increases the cementitiousness of high fluidity high-early (strength) cement mortar and existed concrete bridge, increases high flowing high-early (strength) cement
The compression strength and ductility of mortar increase the shearing strength for repairing rear abutment.Second, the recovery technique situ wet operation is few,
It is easy for construction, Gao Liudong high-early (strength) cement mortar can quick-hardening, realize the purpose quickly repaired after shake.Third, repairing rear axle
Pier has good durability.Since height flowing high-early (strength) cement mortar and stainless steel sleeve pipe all have good durability, so that
Bridge pier after reparation can be used for a long time.Fourth, the bridge pier after repairing has good energy dissipation capacity, and external energy-consumption device is convenient for
Repair replacement.Energy consumption angle steel combines cup spring with SMA and is used in series, and significantly increases the deformability of dissipative devices, and even if outer
It sets energy-consuming device to destroy, is also convenient for repairing replacement.Fifth, before energy consumption angle steel surrender, since SMA combination cup spring is with self-locking
With runback bit function, external energy-consumption system has significant self-resetting capability at this time, after can substantially reducing the shake for repairing rear abutment
Residual deformation.Sixth, recovery technique force-mechanism is more simple after shake proposed by the present invention compared with recovery technique after other shakes
It is clear, convenient for design.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
The present invention totally 7 width attached drawing, wherein:
Fig. 1 is general illustration of the invention.
Fig. 2 is the preprosthetic schematic diagram of bridge pier of the present invention.
Fig. 3 is the schematic diagram of the invention by after the concrete removing of bridge pier destruction, rebar truncated.
Fig. 4 is that the schematic diagram after stainless steel sleeve pipe is installed in repair process of the present invention.
Fig. 5 is that SMA of the present invention combines cup spring sectional view.
Fig. 6 is that SMA of the present invention combines cup spring perspective view.
Fig. 7 is that SMA of the present invention combines each exploded view of cup spring and assembling figure.
In figure: 1-cushion cap, 2-bridge piers, 3-high fluidity high-early (strength) cement mortars, 4-stainless steel sleeve pipes, 5-energy consumption angles
Steel, 6-SMA combine cup spring, the vertical screw rod of 7-1-horizontal screw bolt, 7-2-, 8-high-strength bolts, 9-vertical muscle, 10-polytetrafluoros
Vinyl film, 11-broken concrete, 12-SMA outer rings, the middle inner ring of 13-1-upper inner ring, 13-2-, 13-3-lower inner ring.
Specific embodiment
Fast repairing method after a kind of reinforced concrete bridge pier shake as shown in the figure, mainly by cushion cap (1), bridge pier (2), height
Mobility high-early (strength) cement mortar (3), stainless steel sleeve pipe (4), energy consumption angle steel (5), SMA combination cup spring (6), horizontal screw bolt (7-1),
Vertical screw rod (7-2), high-strength bolt (8), vertical muscle (9), polytetrafluoroethylene film (10) composition.
SMA combination cup spring (6) is made of the SMA outer ring (12) and inner ring (13) mutually fastened.SMA outer ring (12) is by NiTi
Alloy is made, and high strength steel of the inner ring (13) by yield strength in 500-1000MPa is made.SMA outer ring (12) and inner ring (13)
It is annular in shape, it alternately uses from top to bottom.The inner ring surface of SMA outer ring (12) and the outer ring face contact of inner ring (13), mutually fasten,
And the equal outer patch polytetrafluoroethylene film (10) of outer ring surface of the inner ring surface of SMA outer ring (12) and inner ring (13).
SMA outer ring (12) totally 2, each SMA outer ring (12) includes 2 inner ring surfaces.Inner ring (13) totally 3, including it is upper interior
Ring (13-1), lower inner ring (13-3), middle inner ring (13-2) each 1.The upper surface of all SMA outer rings (12) and inner ring (13) is under
End face is plane.Upper inner ring (13-1), lower inner ring (13-3) respectively contain 1 outer ring surface, and middle inner ring (13-2) contains 2 outer rings
Face.
High fluidity high-early (strength) cement mortar (3) fluidity is greater than 300mm, and the lower 24 hours compression strength of room temperature is greater than 20MPa.
The construction procedure of fast repairing method after a kind of shake of reinforced concrete bridge pier are as follows: the first step, by bridge pier (2) plastic hinge
The broken concrete (11) in area is removed completely, and the vertical muscle (9) of bridge pier (2) destroyed area bottom is truncated.Second step, bridge pier
(2) destroyed area outer casing stainless steel casing (4), horizontal hole is reserved in stainless steel sleeve pipe (4), and horizontal screw bolt (7-1) passes through pre-
It stays horizontal hole and is fixed on stainless steel sleeve pipe (4) by high-strength bolt (8).Third step pours inside stainless steel sleeve pipe (4)
High fluidity high-early (strength) cement mortar (3).4th step drills in cushion cap (1), and high fluidity high-early (strength) cement mortar is perfused in hole
(3), then it is implanted into vertical screw rod (7-2).5th step, installation energy consumption angle steel (5) between bridge pier (2) and cushion cap (1).Consume energy angle steel
(5) vertical limb is connect by high-strength bolt (8) and horizontal screw bolt (7-1) with stainless steel sleeve pipe (4).The water of energy consumption angle steel (5)
Flat limb is connected by vertical screw rod (7-2) with cushion cap (1).6th step installs SMA group on the horizontal limb top of energy consumption angle steel (5)
Cyclization spring (6).SMA combines the top that cup spring (6) are fixed on energy consumption angle steel (5) horizontal limb by the high-strength bolt (8) of upper part.
SMA combines cup spring (6) self-locking preceding bearing capacity and is less than the corresponding bearing capacity of energy consumption angle steel (5) surrender.
Horizontal screw bolt (7-1), vertical screw rod (7-2) are respectively provided with screw thread.Horizontal screw bolt (7-1) is along stainless steel sleeve pipe (4) height
It spends direction and 2 rows is set, horizontal screw bolt (7-1) passes through stainless steel sleeve pipe (4), and high-strength spiral shell is arranged on the inside of stainless steel sleeve pipe (4)
Bolt (8), in order to the anchoring of horizontal screw bolt (7-1).On the outside of the stainless steel sleeve pipe (4), it will consume energy angle yet by high-strength bolt (8)
The vertical limb of steel (5) is connect with bridge pier (2).Vertical screw rod (7-2) is anchored in cushion cap by high fluidity high-early (strength) cement mortar (3)
(1) in, 1 row is only arranged in vertical screw rod (7-2).
The gap of 20mm-30mm is reserved between stainless steel sleeve pipe (4) and cushion cap (1).
The present invention by adopting the above technical scheme:
1. the bridge pier after repairing has very high shock resistance.Stainless steel outer packed casing will dramatically increase the early strong water of high flowing
The cementitiousness of cement mortar and existed concrete bridge increases the compression strength and ductility of high fluidity high-early (strength) cement mortar, increases
The shearing strength of high fluidity high-early (strength) cement mortar.So that the bridge pier after repairing is difficult to destroy.
2. on force-mechanism, by rebar truncated when due to repairing, and high fluidity high-early (strength) cement mortar and coagulation
Native tensile strength itself is not high, and under macroseism, reaction will be waved by repairing rear abutment, reduces the antidetonation of bridge pier by waving reaction
Ability need, this will further enhance the shock resistance for repairing rear abutment, is allowed to not destroy.
3. the recovery technique situ wet operation is few, easy for construction.The high fluidity high-early (strength) cement mortar poured can be in short-term
Interior hardening simultaneously has very high compression strength, short the time required to the recovery technique, it can be achieved that the effect quickly repaired after shake.
4. stainless steel sleeve pipe, Gao Liudong high-early (strength) cement mortar etc. all have good durability, after significantly increasing reparation
The durability of bridge pier.
5. energy consumption angle steel and SMA combination cup spring constitute external energy-consumption system.Firstly, the external energy-consumption system can be replaced quickly
It changes, even if being destroyed under future macroseism, can also quickly repair.It is used in series secondly, SMA combines cup spring with energy consumption angle steel,
The Deformation Demands of energy consumption angle steel will be substantially reduced, energy consumption angle steel will be not susceptible to tensile failure model, and significantly increase external energy-consumption body
The deformability of system.
The inner ring surface of 6.SMA outer ring and the equal outer patch polytetrafluoroethylene film of the outer ring surface of inner ring have very little between each other
Frictional force.Under pressured state, SMA combination cup spring relies primarily on the tensioning energy consumption of SMA outer ring, and since SMA outer ring is by NiTi
Alloy is made, and SMA outer ring is shunk after unloading, and SMA, which combines cup spring, has good self-resetting capability.
7. in design, the self-locking preceding bearing capacity of SMA combination cup spring can be designed less than energy consumption angle steel and surrender corresponding bearing capacity.
When SMA combines cup spring compressive deformation to a certain extent, inner ring contacts with each other, the no longer tensioning of SMA outer ring, and SMA combines cup spring " certainly
Lock ".Since SMA combination cup spring has the function of " self-locking ", when the deformation of SMA combination cup spring reaches maximum, SMA combines cup spring certainly
Lock, mainly the inner ring made of high-strength steel undertakes self-locking rear load, can effectively protect SMA combination cup spring and does not destroy.SMA group
Before cyclization spring is self-locking, since energy consumption angle steel is not yet surrendered, and SMA combination cup spring has good self-resetting capability, after unloading,
SMA combination cup spring and energy consumption angle steel automatically reset, and will substantially reduce bridge pier residual deformation.
To sum up, the invention proposes fast repairing methods after a kind of shake of reinforced concrete bridge pier.Mainly by cushion cap, bridge pier,
High fluidity high-early (strength) cement mortar, stainless steel sleeve pipe, energy consumption angle steel, SMA combine cup spring, horizontal screw bolt, vertical screw rod, high-strength spiral shell
Bolt, vertical muscle, polytetrafluoroethylene film composition.Compared with recovery technique after traditional bridge pier shake, the invention patent has following 6
Outstanding advantages: first, the shock resistance for repairing rear abutment is high.Due to reducing the antidetonation of reparation bridge pier after shake using the system of waving
Demand, and stainless steel outer packed casing significantly increases the cementitiousness of high fluidity high-early (strength) cement mortar and existed concrete bridge, increases
The compression strength and ductility for having added high flowing high-early (strength) cement mortar, increase the shearing strength for repairing rear abutment.Second, the reparation
Technology situ wet operation is few, easy for construction, Gao Liudong high-early (strength) cement mortar can quick-hardening, realize the mesh quickly repaired after shake
's.Third, repairing rear abutment has good durability.Due to height flowing high-early (strength) cement mortar and stainless steel sleeve pipe all have it is good
Good durability, so that the bridge pier after repairing can be used for a long time.Fourth, the bridge pier after repairing has good energy dissipation capacity, and
External energy-consumption device is easily repaired replacement.Energy consumption angle steel combines cup spring with SMA and is used in series, and significantly increases the change of dissipative devices
Shape ability, and even if external energy-consumption device destroys, it is also convenient for repairing replacement.Fifth, before energy consumption angle steel surrender, due to SMA
Combining cup spring has self-locking and runback bit function, and external energy-consumption system has significant self-resetting capability at this time, can substantially reduce
Residual deformation after the shake of reparation rear abutment.Sixth, compared with recovery technique after other shakes, recovery technique after shake proposed by the present invention
Force-mechanism is more simply clear, convenient for design.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member without departing from the scope of the present invention, is modified or is modified to when using the technology contents for appealing announcement
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made for any of the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (3)
1. fast repairing method after a kind of shake of reinforced concrete bridge pier, which is characterized in that structure include cushion cap (1), bridge pier (2),
High fluidity high-early (strength) cement mortar (3), stainless steel sleeve pipe (4), energy consumption angle steel (5), SMA combine cup spring (6), horizontal screw bolt (7-
1), vertical screw rod (7-2), high-strength bolt (8), vertical muscle (9) and polytetrafluoroethylene film (10)；
SMA combination cup spring (6) is made of the SMA outer ring (12) and inner ring (13) mutually fastened；SMA outer ring (12) is by Nitinol
It is made, high strength steel of the inner ring (13) by yield strength in 500-1000MPa is made；SMA outer ring (12) and inner ring (13) are in
Ring-type alternately uses from top to bottom；The inner ring surface of SMA outer ring (12) and the outer ring face contact of inner ring (13), mutually fasten, and
The inner ring surface of SMA outer ring (12) and the equal outer patch polytetrafluoroethylene film (10) of the outer ring surface of inner ring (13)；
SMA outer ring (12) totally 2, each SMA outer ring (12) includes 2 inner ring surfaces；Inner ring (13) totally 3, including upper inner ring
Each 1 of (13-1), lower inner ring (13-3), middle inner ring (13-2)；The upper surface and lower end of all SMA outer rings (12) and inner ring (13)
Face is plane；Upper inner ring (13-1), lower inner ring (13-3) respectively contain 1 outer ring surface, and middle inner ring (13-2) contains 2 outer ring surfaces；
High fluidity high-early (strength) cement mortar (3) fluidity is greater than 300mm, and the lower 24 hours compression strength of room temperature is greater than 20MPa；
Construction procedure are as follows: the first step, the concrete (11) that bridge pier (2) plastic hinge region is crushed are removed clean and bridge pier (2) are broken
The vertical muscle (9) of error area bottom is truncated；Second step, bridge pier (2) destroyed area outer casing stainless steel casing (4), stainless steel sleeve pipe (4)
In reserve horizontal hole, horizontal screw bolt (7-1) passes through reserved horizontal hole and is fixed on stainless steel sleeve pipe by high-strength bolt (8)
(4)；Third step pours high fluidity high-early (strength) cement mortar (3) inside stainless steel sleeve pipe (4)；4th step, in cushion cap (1)
It drills, high fluidity high-early (strength) cement mortar (3) is perfused in hole, are then implanted into vertical screw rod (7-2)；5th step, bridge pier (2) with
Installation energy consumption angle steel (5) between cushion cap (1)；Consume energy angle steel (5) vertical limb by high-strength bolt (8) and horizontal screw bolt (7-1) and
Stainless steel sleeve pipe (4) connection；The horizontal limb of energy consumption angle steel (5) is connected by vertical screw rod (7-2) with cushion cap (1)；6th step,
Horizontal limb top installation SMA combination cup spring (6) of energy consumption angle steel (5)；The high-strength bolt that SMA combination cup spring (6) passes through upper part
(8) it is fixed on the top of energy consumption angle steel (5) horizontal limb；SMA combines cup spring (6) self-locking preceding bearing capacity and is less than energy consumption angle steel (5)
Surrender corresponding bearing capacity.
2. fast repairing method after a kind of reinforced concrete bridge pier shake according to claim 1, it is characterised in that: horizontal spiral shell
Bar (7-1), vertical screw rod (7-2) are respectively provided with screw thread；2 rows are arranged along stainless steel sleeve pipe (4) short transverse in horizontal screw bolt (7-1),
Horizontal screw bolt (7-1) passes through stainless steel sleeve pipe (4), and high-strength bolt (8) are arranged on the inside of stainless steel sleeve pipe (4), in order to water
The anchoring of flat screw rod (7-1)；On the outside of the stainless steel sleeve pipe (4), it will consume energy the vertical limb of angle steel (5) yet by high-strength bolt (8)
It is connect with bridge pier (2)；Vertical screw rod (7-2) is anchored in cushion cap (1) by high fluidity high-early (strength) cement mortar (3), vertical spiral shell
1 row is only arranged in bar (7-2).
3. fast repairing method after a kind of reinforced concrete bridge pier shake according to claim 1, it is characterised in that: stainless steel
The gap of 20mm-30mm is reserved between casing (4) and cushion cap (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376509.9A CN110067212B (en) | 2019-05-07 | 2019-05-07 | Method for quickly repairing reinforced concrete pier after earthquake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376509.9A CN110067212B (en) | 2019-05-07 | 2019-05-07 | Method for quickly repairing reinforced concrete pier after earthquake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110067212A true CN110067212A (en) | 2019-07-30 |
| CN110067212B CN110067212B (en) | 2021-03-02 |
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| CN110565457A (en) * | 2019-08-21 | 2019-12-13 | 中铁四院集团岩土工程有限责任公司 | Method for renovating exposed reinforcing steel bars of ballastless track base and repairing structure |
| CN111851261A (en) * | 2020-06-19 | 2020-10-30 | 重庆大学 | Self-resetting concrete filled steel tube pier structure provided with replaceable steel coupling beams and construction method of self-resetting concrete filled steel tube pier structure |
| CN111910508A (en) * | 2020-08-11 | 2020-11-10 | 中国电建集团华东勘测设计研究院有限公司 | Shape memory alloy ring spring group and assembly type self-resetting pier system |
| CN113005922A (en) * | 2021-03-04 | 2021-06-22 | 南京工业大学 | Complete method for quickly reinforcing seismic damage pier by wrapping steel sleeve outside |
| CN113322794A (en) * | 2021-06-07 | 2021-08-31 | 同济大学 | Anti-roll section assembling swing single-column pier multiple damping system |
| CN114561867A (en) * | 2022-03-10 | 2022-05-31 | 广州市市政工程设计研究总院有限公司 | Festival segmentation self-reset pier of removable power consumption spare after shake |
| CN114960408A (en) * | 2022-04-26 | 2022-08-30 | 郑州大学 | Intelligent assembly type bridge pier with energy dissipation and shock absorption device |
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| CN110565457A (en) * | 2019-08-21 | 2019-12-13 | 中铁四院集团岩土工程有限责任公司 | Method for renovating exposed reinforcing steel bars of ballastless track base and repairing structure |
| CN111851261A (en) * | 2020-06-19 | 2020-10-30 | 重庆大学 | Self-resetting concrete filled steel tube pier structure provided with replaceable steel coupling beams and construction method of self-resetting concrete filled steel tube pier structure |
| CN111910508A (en) * | 2020-08-11 | 2020-11-10 | 中国电建集团华东勘测设计研究院有限公司 | Shape memory alloy ring spring group and assembly type self-resetting pier system |
| CN113005922A (en) * | 2021-03-04 | 2021-06-22 | 南京工业大学 | Complete method for quickly reinforcing seismic damage pier by wrapping steel sleeve outside |
| CN113322794A (en) * | 2021-06-07 | 2021-08-31 | 同济大学 | Anti-roll section assembling swing single-column pier multiple damping system |
| CN113322794B (en) * | 2021-06-07 | 2022-09-13 | 同济大学 | Anti-roll section assembling swing single-column pier multiple damping system |
| CN114561867A (en) * | 2022-03-10 | 2022-05-31 | 广州市市政工程设计研究总院有限公司 | Festival segmentation self-reset pier of removable power consumption spare after shake |
| CN114561867B (en) * | 2022-03-10 | 2024-03-15 | 广州市市政工程设计研究总院有限公司 | Sectional type self-resetting bridge pier with replaceable energy consumption piece after earthquake |
| CN114960408A (en) * | 2022-04-26 | 2022-08-30 | 郑州大学 | Intelligent assembly type bridge pier with energy dissipation and shock absorption device |
| CN114960408B (en) * | 2022-04-26 | 2024-03-01 | 郑州大学 | Intelligent assembled bridge pier with energy consumption and shock absorption device |
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