CN106400677B - It is a kind of it is damaged can in-situ rapid renovation box steel bridge pier - Google Patents

It is a kind of it is damaged can in-situ rapid renovation box steel bridge pier Download PDF

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Publication number
CN106400677B
CN106400677B CN201610970471.4A CN201610970471A CN106400677B CN 106400677 B CN106400677 B CN 106400677B CN 201610970471 A CN201610970471 A CN 201610970471A CN 106400677 B CN106400677 B CN 106400677B
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steel
plate
bridge pier
steel plate
main body
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CN106400677A (en
Inventor
刘阳
郭子雄
巴赫拉姆·莎鲁兹
胡红松
林茂彬
吕英婷
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Huaqiao University
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Huaqiao University
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/02Piers; Abutments ; Protecting same against drifting ice

Abstract

The invention discloses it is a kind of it is damaged can in-situ rapid renovation box steel bridge pier, the bridge pier main body including hollow structure is shelved on cushion cap, and bridge pier main body includes the steel plate of four pieces of connections in rectangular configuration;The steel bushing of hollow structure is placed in bridge pier main body and is mounted on cushion cap, the side panel including four pieces of connections in rectangular configuration;The damper being connected between steel plate and side panel, including placing vertically and the mild steel plate vertical with steel plate and side panel;Flexible prestressing pull rod device, steel tendon including being vertically arranged, the positioning plate above steel bushing, more pull rods being arranged around positioning plate circumferentially-spaced, pull rod is connected between steel plate and positioning plate to hang positioning plate, pre-embedded steel slab is equipped in cushion cap, axle sleeve is connected on pre-embedded steel slab, cushion cap is stretched out in axle sleeve upper end upwards, and steel tendon lower end passes through axle sleeve and connect with pre-embedded steel slab, upper end connected positioning plate.After strong earthquakes, impaired damper can be removed and replace intact damper, quickly repaired after realizing shake.

Description

It is a kind of it is damaged can in-situ rapid renovation box steel bridge pier
Technical field
The present invention relates to a kind of anti-seismic constructions of steel bridge pier, and in particular to it is a kind of it is damaged can in-situ rapid renovation box steel Bridge pier.
Background technique
The intelligence of urban development and sustainability propose new want to building industrialization and engineering structure anti-seismic performance Summation challenge, wherein realize that structure earthquake is quickly repaired and the fast quick-recovery of building function is the basic of " recoverable function city " It is required that and important research direction.Restorability energy structure refers generally to not need to repair after structure meets with earthquake or appropriateness is repaired Restore the building structure of its performance, the research and development and popularization and application of restorability energy structure can not only substantially reduce direct earthquake damage It loses, and can significantly shorten repairing efficiency after shake, city can be restored for final realization, basic fundamental support is provided.
Steel construction is applied in the multiple country of earthquake since steel have the advantages that good toughness, ductility and high intensity Extensively.Especially occur using the ductility of steel in urban viaduct construction in advanced countries such as the multiple Japan, the U.S. of earthquake Steel structure pier.It but is not that steel have good ductility, steel structure member just has good anti-seismic performance.In nineteen ninety-five In the big earthquakes in Osaka and Kobe,Japan, not only for the bridge pier of concrete structure by badly damaged, serious bend also is had occurred in steel structure pier It is bent and collapse.For this purpose, the anti-seismic performance of steel structure pier obtains the concern of scholar, anti-seismic idea is also from the limit for only considering bridge pier Bearing capacity turns to the ductility of bridge pier, seismic energy absorbs and reduces the residual deformation direction of bridge pier.Common reinforcement means has Steel bridge pier fill concrete, ribbed stiffener reinforcement and increase low yield strength energy absorption segment etc., these reinforcement means embody Design philosophy of the ductility of component without dramatically increasing its intensity is improved out.At present both at home and abroad to Self-resetting, control after bridge pier shake The experimental study of residual deformation focuses mostly on reinforced concrete bridge pier, still few to the Self-resetting performance study of steel bridge pier.In view of This, inventor furthers investigate the above problem, there is this case generation then.
Summary of the invention
The present invention provides a kind of good seismic performance and shake after can quickly repair it is damaged can in-situ rapid renovation case Fashioned iron bridge pier.The technical solution adopted by the present invention to solve the technical problems is:
It is a kind of it is damaged can in-situ rapid renovation box steel bridge pier, the bridge pier main body including hollow structure is shelved on cushion cap On, bridge pier main body includes the steel plate of four pieces of connections in rectangular configuration, further includes:
The steel bushing of hollow structure is placed in bridge pier main body and is mounted on cushion cap, and steel bushing includes four pieces of companies in rectangular configuration The side panel connect, four pieces of side panels are parallel with four blocks of steel plates respectively;
The damper being connected between steel plate and side panel, including placing vertically and the mild steel vertical with steel plate and side panel Plate;
Flexible prestressing pull rod device, the steel tendon including being vertically arranged, the positioning plate above steel bushing, evenly around More pull rods of positioning plate circumferentially-spaced setting, pull rod are connected between steel plate and positioning plate to hang positioning plate, the cushion cap It is interior to be equipped with pre-embedded steel slab, be connected with axle sleeve on pre-embedded steel slab, cushion cap is stretched out in axle sleeve upper end upwards, steel tendon lower end pass through axle sleeve with Pre-embedded steel slab connection, upper end connected positioning plate.
When small earthquake occurs, bridge pier main body, steel bushing, damper and flexible prestressing pull rod device collective effect, bridge pier Main body, steel bushing, damper and flexible prestressing pull rod device are in elastic stage;When strong earthquakes occur, mild steel plate due to Plastic phase can produce shear yielding, absorb most seismic energy, bridge pier main body is protected not break well to preferable It is bad, good seismic performance, meanwhile, flexible prestressing pull rod device is still within bullet after damper mild steel plate enters the plastic stage Sexual stage, when box steel bridge pier one end is lifted, prestressed draw-bar device provides vertical restoring force for bridge pier, well Improve the ability of steel bridge pier Self-resetting and antidumping;In addition, since damper is detachably, after strong earthquakes, can will to be damaged Bad damper, which is removed, replaces intact damper, quickly repairs after realizing shake.
Among one preferred embodiment: the mild steel plate is equipped with horizontally extending elongated slot, the quantity of the elongated slot It is multiple and vertical spacing arrangement.Elongated slot can realize good energy dissipation capacity under the premise of meeting rigidity of structure demand.
Among one preferred embodiment: the damper further includes end plate and connecting plate, and end plate is parallel with the side panel simultaneously It is bolted, connecting plate is vertical with the steel plate and welds, and side and the connecting plate of mild steel plate are bolted, another Side and end plate weld.
Among one preferred embodiment: the steel bushing further includes the ribbed stiffener in well word structure, ribbed stiffener outboard end and side Panel inner surface connection.The out of plane stiffness of steel bushing can be improved in the ribbed stiffener of well word structure, increases steel bushing and resists local buckling Ability.
Among one preferred embodiment: the steel bushing further include middle part hollow out below plate, the bottom surface of side panel with it is following The upper surface of plate is welded, and lower panel is bolted with the pre-embedded steel slab.
Among one preferred embodiment: the positioning plate bottom is provided with intersecting parallels ribbed stiffener, and the margin location of upper surface installs There is trapezoidal floor, the trapezoidal floor is vertically arranged, and the trapezoidal floor is connect by bolt with the pull rod.Intersecting parallels is put more energy into The out of plane stiffness of positioning plate can be improved in rib, increases the ability that positioning plate resists local buckling.Trapezoidal floor is conducive to pull rod Detachable installation.
Among one preferred embodiment: the inner surface of the steel plate be equipped with mounting plate, mounting plate be equipped with triangle floor, three Angular floor is parallel with trapezoidal floor, and the triangle floor is connect by bolt with the pull rod.
Among one preferred embodiment: described steel tendon one end is connect by anchorage with the pre-embedded steel slab, and the other end passes through Anchorage is connect with the positioning plate.
Among one preferred embodiment: the bridge pier main body further includes the lower plate of middle part hollow out, and the bottom surface of steel plate is under The upper surface of bottom plate is welded, and lower plate is supported on cushion cap;The bridge pier main body further includes muti-piece support plate, and support plate is set vertically Set simultaneously junction steel plate outer surface and lower plate upper surface.The out of plane stiffness of steel bridge pier can be improved in support plate, increases steel bridge pier and supports The ability of anti-local buckling.Lower plate can transmit the axle power generated under vertical uniform load q.
Among one preferred embodiment: the steel plate is equipped with access hole, and inner surface of steel plate is equipped with ladder below access hole. Construction personnel can enter inside bridge pier the replacement for carrying out the mild steel plate and end plate by access hole.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 depicts longitudinal schematic cross-sectional view of box steel bridge pier of the present invention.
Fig. 2 depicts the lateral schematic cross-sectional view of box steel bridge pier of the present invention.
Specific embodiment
Referring to Fig.1 and 2, one kind of the invention it is damaged can in-situ rapid renovation box steel bridge pier, including hollow knot The bridge pier main body 10 of structure, the steel bushing 20 of hollow structure, the damper 30 of connection bridge pier main body and steel bushing, for bridge pier main body 10 Apply prestressed flexible prestressing pull rod device 40.
The bridge pier main body 10 is shelved on cushion cap 50.The cushion cap 50 is concrete structure.The bridge pier main body 10 is wrapped The steel plate 12 of four pieces of connections in rectangular configuration is included, the outer profile of 10 cross section of bridge pier main body is in rectangle.The steel bushing 20 is placed in bridge It in pier main body 10 and is mounted on cushion cap 50, steel bushing 20 includes the side panel 22 of four pieces of connections in rectangular configuration, and steel bushing 20 is transversal The outer profile in face is in rectangle, and four pieces of side panels 22 are parallel with four blocks of steel plates 12 respectively.The damper 30 is connected to 12 He of steel plate Between side panel 22 comprising vertical placement and the mild steel plate 32 vertical with steel plate and side panel.The flexible prestressing is drawn Lever apparatus 40 include the steel tendon 42 being vertically arranged, the positioning plate 44 for being arranged in bridge pier main body 10 and being located at the top of steel bushing 20, Evenly around more pull rods 46 of 44 circumferentially-spaced of positioning plate setting.Pull rod 46 is connected between steel plate 12 and positioning plate 44 to hang Firmly positioning plate 44.It is horizontal in the cushion cap 50 to be equipped with pre-embedded steel slab 52, axle sleeve 54,54 upper end of axle sleeve are connected on pre-embedded steel slab 52 Cushion cap 50 is stretched out upwards, and 42 lower end of steel tendon passes through axle sleeve 54 and connect with pre-embedded steel slab 52, upper end connected positioning plate 44.The steel 42 one end of tow is connect by anchorage 48 with the pre-embedded steel slab 52, and the other end is connect by anchorage 48 with the positioning plate 44.
The mild steel plate 32 is equipped with horizontally extending elongated slot 322, and the quantity of the elongated slot 322 is multiple and erects Straight arranged for interval.The damper 30 further includes end plate 34 and connecting plate 36, and end plate 34 is parallel with the side panel 22 and passes through High-strength friction-type is bolted together, and connecting plate 36 is vertical with the steel plate 12 and welds together, the side of mild steel plate 32 It is bolted with connecting plate 36 by high-strength friction-type, the other side welds together with end plate 34.
The steel bushing 20 further includes the ribbed stiffener 24 in well word structure, 24 outboard end of ribbed stiffener and 22 inner surface of side panel It is welded to connect and forms entirety.The steel bushing 20 further includes plate 26 below the hollow out of middle part, the bottom surface and lower panel of side panel 22 26 upper surface welding, lower panel 26 are bolted with the pre-embedded steel slab 52 by high-strength friction-type.
44 bottom of positioning plate is provided with intersecting parallels ribbed stiffener 442, and the marginal position of upper surface corresponds to pull rod and is equipped with ladder Shape floor 444, the trapezoidal floor 444 are vertically arranged, and the trapezoidal floor 444 passes through high-strength friction-type bolt and the pull rod The connection of 46 one end.The inner surface of the steel plate 12 is equipped with mounting plate 14, and mounting plate 14 is equipped with triangle floor 142, triangle Floor 142 is parallel with trapezoidal floor 444, and the triangle floor 142 is another by high-strength friction-type bolt and the pull rod 46 End connection.
The bridge pier main body 10 further includes the lower plate 16 of middle part hollow out, the bottom surface of steel plate 12 and the upper table of lower plate 16 Face welding, lower plate 16 are supported on cushion cap 50.The bridge pier main body 10 further includes muti-piece support plate 18, and support plate 18 is set vertically Set simultaneously 16 upper surface of 12 outer surface of junction steel plate and lower plate.The steel plate 12 is equipped with access hole 122, and 12 inner surface of steel plate exists Ladder 124 is equipped with below access hole.
The present embodiment it is damaged can in-situ rapid renovation box steel bridge pier, field-replaceable unit (i.e. damper) is normal In the case of constitute the component part of structural columns.Under vertical uniform load q, axle power is transferred to cushion cap by steel bridge pier, damping Device is not involved in stress;Under horizontal loads, the lateral tilt generated by steel bridge pier, by steel bridge pier with the soft of fluctuation dampers It is shear-deformable in steel plate generation vertical plane, the anti-bending bearing capacity of steel bridge pier is provided, passes through mild steel plate and surrenders generation plasticity change Shape, absorbs and the most seismic energy that dissipates, protection steel bridge pier are not damaged.
When small earthquake occurs, bridge pier main body, steel bushing, damper and flexible prestressing pull rod device collective effect, bridge pier Main body, steel bushing, damper and flexible prestressing pull rod device are in elastic stage.When strong earthquakes occur, as damper The mild steel plate of Wasted-energy steel plate can produce shear yielding, absorb most seismic energy, protect well since Plastic phase is to preferable Box steel bridge pier does not destroy, good seismic performance, meanwhile, when damper mild steel plate enters plastic stage post-tensioning lever apparatus still It is so in elastic stage, when box steel bridge pier one end is lifted, flexible prestressing pull rod device provides vertically for steel bridge pier Restoring force, improve the ability of steel bridge pier Self-resetting and antidumping well;In addition, due on damper mild steel plate and end Plate is removably, after strong earthquakes, can to remove impaired mild steel plate and end plate and change intact damper into, after realizing shake Quickly repair.
The above is only the preferred embodiment of the present invention, the range implemented of the present invention that therefore, it cannot be limited according to, i.e., according to Equivalent changes and modifications made by the invention patent range and description, should still be within the scope of the present invention.

Claims (5)

1. it is a kind of it is damaged can in-situ rapid renovation box steel bridge pier, the bridge pier main body including hollow structure is shelved on cushion cap, Bridge pier main body includes the steel plate of four pieces of connections in rectangular configuration, it is characterised in that: further include:
The steel bushing of hollow structure is placed in bridge pier main body and is mounted on cushion cap, and steel bushing includes four pieces of connections in rectangular configuration Side panel, four pieces of side panels are parallel with four blocks of steel plates respectively;The steel bushing further includes the ribbed stiffener in well word structure, outside ribbed stiffener Side end is connect with side panel inner surface;
The damper being connected between steel plate and side panel, including placing vertically and the mild steel plate vertical with steel plate and side panel;
Flexible prestressing pull rod device, the steel tendon including being vertically arranged, the positioning plate above steel bushing, evenly around positioning More pull rods of plate circumferentially-spaced setting, pull rod are connected between steel plate and positioning plate to hang positioning plate, set in the cushion cap There is pre-embedded steel slab, axle sleeve is connected on pre-embedded steel slab, cushion cap is stretched out in axle sleeve upper end upwards, and steel tendon lower end passes through axle sleeve and passes through anchor Tool is connect with pre-embedded steel slab, and upper end passes through anchorage connected positioning plate;The positioning plate bottom is provided with intersecting parallels ribbed stiffener, upper table The marginal position in face is equipped with trapezoidal floor, and the trapezoidal floor is vertically arranged, and the trapezoidal floor passes through bolt and the pull rod Connection;The inner surface of the steel plate is equipped with mounting plate, and mounting plate is equipped with triangle floor, and triangle floor and trapezoidal floor are flat Row, the triangle floor are connect by bolt with the pull rod;
The bridge pier main body further includes the lower plate of middle part hollow out, and the bottom surface of steel plate and the upper surface of lower plate are welded, bottom Plate is supported on cushion cap;The bridge pier main body further includes muti-piece support plate, support plate be vertically arranged and junction steel plate outer surface and Lower plate upper surface.
2. box steel bridge pier according to claim 1, it is characterised in that: the mild steel plate is equipped with horizontally extending Elongated slot, the quantity of the elongated slot be multiple and vertical spacing arrange.
3. box steel bridge pier according to claim 2, it is characterised in that: the damper further includes end plate and connecting plate, End plate is parallel with the side panel and is bolted, and connecting plate is vertical with the steel plate and welds, the side of mild steel plate with Connecting plate is bolted, and the other side and end plate weld.
4. box steel bridge pier according to claim 1, it is characterised in that: the steel bushing further includes below the hollow out of middle part Plate, the bottom surface of side panel and the upper surface of lower panel are welded, and lower panel is bolted with the pre-embedded steel slab.
5. box steel bridge pier according to claim 1, it is characterised in that: the steel plate is equipped with access hole, table in steel plate Face is equipped with ladder below access hole.
CN201610970471.4A 2016-11-03 2016-11-03 It is a kind of it is damaged can in-situ rapid renovation box steel bridge pier Active CN106400677B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110284420B (en) * 2019-06-25 2021-03-09 东南大学 Self-resetting full-prefabricated pier-bearing platform structure easy to restore after earthquake and assembling method thereof
CN111041978B (en) * 2019-12-11 2021-03-30 郑州第二市政建设集团有限公司 Anti-seismic pier column structure
CN113931061A (en) * 2021-11-04 2022-01-14 福州大学 Prefabricated assembled pier with replaceable components and construction method thereof

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KR20010100042A (en) * 2001-04-14 2001-11-14 김연수 Earthquake-resistant forced constitution of bridge pier
CN102304892A (en) * 2011-07-29 2012-01-04 清华大学 External energy-consumption self-resetting bridge pier stud structure system and realization method thereof
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CN104674649A (en) * 2015-03-26 2015-06-03 大连海事大学 Novel earthquake damage control system for thin-wall hollow pier
CN104895249A (en) * 2015-06-09 2015-09-09 华侨大学 Combined column foot capable of being repaired in situ
CN105297616A (en) * 2015-09-29 2016-02-03 华侨大学 Box type steel pier capable of being repaired quickly in situ during earthquake damage
CN206189254U (en) * 2016-11-03 2017-05-24 华侨大学 But shake and decrease quick prosthetic box steel bridge mound of normal position

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CN201818097U (en) * 2010-05-28 2011-05-04 湖北小天地科技有限公司 Prestressed steel rod

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010100042A (en) * 2001-04-14 2001-11-14 김연수 Earthquake-resistant forced constitution of bridge pier
CN102304892A (en) * 2011-07-29 2012-01-04 清华大学 External energy-consumption self-resetting bridge pier stud structure system and realization method thereof
CN104532740A (en) * 2015-01-21 2015-04-22 宁波大学 Energy-consuming rebar-attached unbonded post-tensioning prestressed concrete filled double-wall steel tube prefabricated assembly bridge pier
CN104674649A (en) * 2015-03-26 2015-06-03 大连海事大学 Novel earthquake damage control system for thin-wall hollow pier
CN104895249A (en) * 2015-06-09 2015-09-09 华侨大学 Combined column foot capable of being repaired in situ
CN105297616A (en) * 2015-09-29 2016-02-03 华侨大学 Box type steel pier capable of being repaired quickly in situ during earthquake damage
CN206189254U (en) * 2016-11-03 2017-05-24 华侨大学 But shake and decrease quick prosthetic box steel bridge mound of normal position

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