CN104612036A - Unbonded post-tensioning prestress concrete-filled double-wall steel pipe prefabricated assembly piers with additional dampers - Google Patents

Unbonded post-tensioning prestress concrete-filled double-wall steel pipe prefabricated assembly piers with additional dampers Download PDF

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Publication number
CN104612036A
CN104612036A CN201510036435.6A CN201510036435A CN104612036A CN 104612036 A CN104612036 A CN 104612036A CN 201510036435 A CN201510036435 A CN 201510036435A CN 104612036 A CN104612036 A CN 104612036A
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CN
China
Prior art keywords
steel
bridge pier
steel plate
steel pipe
vertical
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CN201510036435.6A
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Chinese (zh)
Inventor
布占宇
吴威业
孔婷婷
史梦珊
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宁波大学
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Application filed by 宁波大学 filed Critical 宁波大学
Priority to CN201510036435.6A priority Critical patent/CN104612036A/en
Publication of CN104612036A publication Critical patent/CN104612036A/en

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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
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/20Concrete, stone or stone-like material
    • E01D2101/24Concrete
    • E01D2101/26Concrete reinforced
    • E01D2101/28Concrete reinforced prestressed
    • E01D2101/285Composite prestressed concrete-metal

Abstract

The invention discloses unbonded post-tensioning prestress concrete-filled double-wall steel pipe prefabricated assembly piers with additional dampers. The piers comprise a bearing table, prefabricated assembly pier bodies and a cover beam. The piers are characterized in that prefabricated assembly pier bodies are concrete-filled double-wall steel pipe prefabricated assembly pier bodies, each prefabricated assembly pier body comprises an outer steel pipe, an inner steel pipe and filled concrete, the end faces of the tops and the end faces of the bottoms of the outer steel pipes and the end faces of the tops and the end faces of the bottoms of the inner steel pipes are connected through four steel sheets respectively, fiber reinforcement mortar layers are arranged between the top face of the bearing table and the end faces of the prefabricated assembly pier bodies as well as between the bottom face of the cover beam and the end faces of the prefabricated assembly pier bodies, the bearing table, the prefabricated assembly pier bodies and the cover beam are assembled through prestress tension device to form a whole, and the four viscous dampers are arranged between the top face of the bearing table and the side faces of the prefabricated assembly pier bodies as well as between the bottom face of the cover beam and the side faces of the prefabricated assembly pier bodies. The piers have the advantages that the construction quality is improved, the construction speed is increased, the site operation amount is reduced, and the impact on the environment is reduced; the viscous dampers provide additional energy-consuming abilities for the piers, and therefore the displacement requirement of the piers under horizontal load effects of earthquakes and the like can be controlled and reduced.

Description

A kind of soap-free emulsion polymeization post-tensioned prestressed concrete of additional damping device fills double-walled steel pipe precast assembly bridge pier
Technical field
The present invention relates to a kind of method for designing of Concrete Filled double-walled steel pipe precast assembly bridge pier, the soap-free emulsion polymeization post-tensioned prestressed concrete particularly relating to a kind of additional damping device fills the method for designing of double-walled steel pipe precast assembly bridge pier.
Background technology
Current bridge construction generally adopts the construction method of poured in place concrete, and it is long for on-the-spot curing period that this construction method has concrete, and field operation amount is large, causes noise and residue contamination, easily cause the shortcomings such as traffic congestion to surrounding environment.In order to alleviate these problems, precast concrete form of construction work is more and more applied.
Prefabricated concrete bridge component is processed at produce in factory, the Modern Construction technology such as automation template, stream curing can be used, improve construction precision and maintenance quality, bridge on-site consolidation is transported to after element precast completes, field operation can be reduced, reduce concrete on construction site waste entrainment and construction noise, realize rapid construction, reduce traffic congestion.
Precast assembly bridge pier belongs to the one of precast bridge component, and due to the existence of seam, globality is poor, and shock resistance is weak, therefore ensure seam firmly, safety and the simple constructability of structure be the key of prefabricate and install technology.Seam between current precast assembly bridge pier component generally adopts stem grafting to stitch, and joint face only has presstressed reinforcing steel to pass through, and energy dissipation capacity is lower, and earthquake displacement demand is larger.
Current precast assembly bridge pier generally adopts solid concrete cross section, and deadweight is comparatively large, and Earthquake Inertia Force Acting is directly proportional to deadweight, and therefore seismic forces is also larger.Precast concrete bridge pier needs higher making precision simultaneously, and ordinary concrete precast pier is not easy assembled because making precision is not high, and the splicing space of joint face is large, reduces bridge pier horizontal bearing capacity.
Summary of the invention
Technical problem to be solved by this invention is to provide that a kind of speed of application is fast, anti-seismic performance is high, from heavy and light and the high soap-free emulsion polymeization post-tensioned prestressed concrete of installation accuracy fills double-walled steel pipe precast assembly bridge pier.
The present invention solves the problems of the technologies described above adopted technical scheme:
A kind of soap-free emulsion polymeization post-tensioned prestressed concrete of additional damping device fills double-walled steel pipe precast assembly bridge pier, comprise cushion cap, precast assembly bridge pier and bent cap, described precast assembly bridge pier is arranged on described cushion cap, described bent cap is arranged on described precast assembly bridge pier, described precast assembly bridge pier is Concrete Filled double-walled steel pipe precast assembly bridge pier, described precast assembly bridge pier comprises outer steel pipe, interior steel pipe and fill concrete, described outer steel pipe is connected respectively by four steel discs with bottom end face at top with interior steel pipe, between described cushion cap end face and precast assembly bridge pier bottom end face, fiber-reinforced mortar layer is set, between described precast assembly pier coping portion end face and bent cap bottom surface, fiber-reinforced mortar layer is set, described cushion cap, precast assembly bridge pier and bent cap are by the assembled formation entirety of pre-stress stretching device, four bottom viscous dampers are set between described cushion cap end face and precast assembly bridge pier bottom sides, four top viscous dampers are set between described precast assembly pier coping portion side and bent cap bottom surface.
Described pre-stress stretching device comprises and is separately positioned on the fixed end ground tackle bottom described cushion cap, the stretching end ground tackle being arranged on described bent cap top and presstressed reinforcing steel group, described presstressed reinforcing steel group is through the lower prestress pipeline being arranged on cushion cap inside, described presstressed reinforcing steel group is through interior steel pipe, described presstressed reinforcing steel group is through the upper prestress pipe being arranged on bent cap inside, and described presstressed reinforcing steel group utilizes stretch-draw jack stretch-draw at stretching end ground tackle place, bent cap top.
One terminal bolt of described bottom viscous damper is connected on the weldable steel component of cushion cap end face, the other end bolt of described bottom viscous damper is connected on the weldable steel component of the outer steel pipe bottom sides of precast assembly bridge pier, and the angle between the line at described viscous damper two ends, bottom and described cushion cap end face is between 30 degree to 60 degree.
One terminal bolt of described top viscous damper is connected on the weldable steel component of the outer steel pipe top side of precast assembly bridge pier, the other end bolt of described top viscous damper is connected on the weldable steel component of bent cap bottom surface, and the angle between the line at described viscous damper two ends, top and described bent cap bottom surface is between 30 degree to 60 degree.
Described outer steel pipe and interior steel pipe four steel discs that bottom end face is connected be separately positioned on bridge pier direction across bridge and vertical bridge to, the angle of adjacent tablet is 90 degree.Described outer steel pipe and interior steel pipe four steel discs that top end face is connected be separately positioned on bridge pier direction across bridge and vertical bridge to, the angle of adjacent tablet is 90 degree.
Between described cushion cap end face and precast assembly bridge pier bottom sides four bottom viscous dampers be separately positioned on bridge pier direction across bridge and vertical bridge to, the angle of adjacent damper plane projection is 90 degree.Four top viscous dampers between described precast assembly pier coping portion side and bent cap bottom surface be separately positioned on bridge pier direction across bridge and vertical bridge to, the angle of adjacent damper plane projection is 90 degree.
Described cushion cap end face and described precast assembly bridge pier central axis.
Described bent cap bottom surface and described precast assembly bridge pier central axis.
The outer steel pipe of described Concrete Filled double-walled steel pipe precast assembly bridge pier and interior steel tube section are the ring cross-section in the same center of circle.
Described cushion cap end face pre-embedded steel slab comprises a steel plate and four Ribbed Bar, and described steel plate external surface flushes with cushion cap end face, and the preformed hole plug welding that four described Ribbed Bar are corresponding to described steel plate is welded.
Described bent cap bottom surface pre-embedded steel slab comprises a steel plate and four Ribbed Bar, and described steel plate external surface flushes with bent cap bottom surface, and the preformed hole plug welding that four described Ribbed Bar are corresponding to described steel plate is welded.
The weldable steel component of described cushion cap end face comprises two vertical steel plates and a horizontal steel plate, the axis of described bottom viscous damper is vertical with described horizontal steel plate, described vertical steel plate one end is together with described horizontal steel plate vertical welding, the described vertical steel plate other end welds with the pre-embedded steel slab of cushion cap end face, described horizontal steel plate is provided with circular hole, for the bolt of viscous damper lower end bottom anchoring.
The weldable steel component of the outer steel pipe bottom sides of described bridge pier comprises two vertical steel plates and a horizontal steel plate, the axis of described bottom viscous damper is vertical with described horizontal steel plate, described vertical steel plate one end is together with described horizontal steel plate vertical welding, the described vertical steel plate other end welds with the outer steel pipe side of bridge pier, described horizontal steel plate is provided with circular hole, for the bolt of viscous damper upper end bottom anchoring.
The weldable steel component of the outer steel pipe top side of described bridge pier comprises two vertical steel plates and a horizontal steel plate, the axis of described top viscous damper is vertical with described horizontal steel plate, described vertical steel plate one end is together with described horizontal steel plate vertical welding, the described vertical steel plate other end welds with the outer steel pipe side of bridge pier, described horizontal steel plate is provided with circular hole, for the bolt of viscous damper lower end, anchoring top.
The weldable steel component of described bent cap bottom surface comprises two vertical steel plates and a horizontal steel plate, the axis of described top viscous damper is vertical with described horizontal steel plate, described vertical steel plate one end is together with described horizontal steel plate vertical welding, the described vertical steel plate other end welds with the pre-embedded steel slab of bent cap bottom surface, described horizontal steel plate is provided with circular hole, for the bolt of viscous damper upper end, anchoring top.
During component assembly, the outer steel pipe of precast assembly bridge pier and interior steel pipe and to be connected steel disc assembled complete in factory process welding, and at inside perfusion fill concrete, be transported to bridge scene after maintenance terminates, cushion cap end face arranges fiber-reinforced mortar layer, assembled bridge pier is placed on cushion cap end face, bent cap is placed on assembled bridge pier, tensioned prestressing bar, bottom damper is installed, top damper is installed, completes the installation of bridge pier.
Compared with prior art, the invention has the advantages that:
Bridge pier is prefabricated units, makes in factory, can improve construction quality, improves speed of application, reduces field operation amount, reduces the impact to environment.The unbonded prestressing tendon being arranged in kernel of section provides self-resetting capability for bridge pier, decreases the residual displacement under the horizontal loads such as earthquake.Bottom and top damper are that bridge pier provides additional energy dissipation capacity, can control and reduce the displacement demand of bridge pier under the horizontal loads such as earthquake.Precast pier adopts Concrete Filled double-wall steel tubing string, concrete is made to be subject to three-dimensional constraint, the Confinement effect of steel pipe improves concrete compressive ultimate strain, concrete provides lateral support for steel pipe, avoid the flexing of steel pipe under axial compression effect and the depression be subject to when vehicle etc. clashes into, axial bearing capacity is greater than same section steel pipe or concrete column.Steel pipe is that concrete provides construction formwork and as concrete reinforcing bar of putting more energy into, avoids required template and inner reinforcing bar when concrete pier is constructed.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present invention;
Fig. 2 is bridge pier lower section structural representation of the present invention;
Fig. 3 is bridge pier upper section structural representation of the present invention;
Fig. 4 is cushion cap end face pre-embedded steel slab schematic diagram of the present invention;
Fig. 5 is bent cap bottom surface of the present invention pre-embedded steel slab schematic diagram;
Fig. 6 is cushion cap end face weldable steel component schematic diagram of the present invention;
Fig. 7 is the outer steel pipe bottom sides weldable steel component schematic diagram of bridge pier of the present invention;
Fig. 8 is bridge pier of the present invention outer steel pipe top side weldable steel component schematic diagram;
Fig. 9 is bent cap bottom surface of the present invention weldable steel component schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As shown in Figure 1, a kind of soap-free emulsion polymeization post-tensioned prestressed concrete of additional damping device fills double-walled steel pipe precast assembly bridge pier, comprise cushion cap 1, precast assembly bridge pier and bent cap 2, this precast assembly bridge pier is arranged on cushion cap 1, bent cap 2 is arranged on this precast assembly bridge pier, this precast assembly bridge pier is Concrete Filled double-walled steel pipe precast assembly bridge pier, this precast assembly bridge pier comprises outer steel pipe 3, interior steel pipe 4 and fill concrete 5, outer steel pipe 3 is connected (Fig. 2) respectively by four steel discs 6 with bottom end face at top with interior steel pipe 4, between cushion cap 1 end face and this precast assembly bridge pier bottom end face, lower fiber-reinforced mortar layer 7 is set, this precast assembly pier coping portion end face and bent cap 2 bottom surface and between fiber-reinforced mortar layer 8 is set, cushion cap 1, this precast assembly bridge pier and bent cap 2 are by the assembled formation entirety of soap-free emulsion polymeization post-tensioned prestressing tensioning equipment, four bottom viscous dampers 9 are set between cushion cap 1 end face and this precast assembly bridge pier bottom sides, four top viscous dampers 10 are set between this precast assembly pier coping portion side and bent cap 2 bottom surface.
In this particular embodiment, pre-stress stretching device comprises the fixed end ground tackle 11 be separately positioned on bottom described cushion cap 1, and be arranged on stretching end ground tackle 12 and the presstressed reinforcing steel group 13 at bent cap 2 top, presstressed reinforcing steel group 13 is through the lower prestress pipeline 14 being arranged on cushion cap 1 inside, presstressed reinforcing steel group 13 is through interior steel pipe 4, presstressed reinforcing steel group 13 is through the upper prestress pipe 15 being arranged on bent cap 2 inside, and presstressed reinforcing steel group 13 utilizes stretch-draw jack stretch-draw at stretching end ground tackle 12 place, bent cap 2 top.
As shown in Figure 2, in this particular embodiment, one terminal bolt of bottom viscous damper 9 is connected on the weldable steel component 16 of cushion cap 1 end face, the other end bolt of bottom viscous damper 9 is connected on the weldable steel component 17 of outer steel pipe 3 bottom sides of precast assembly bridge pier, and the angle between the line at bottom viscous damper 9 two ends and cushion cap 1 end face is between 30 degree to 60 degree.
As shown in Figure 3, in this particular embodiment, one terminal bolt of top viscous damper 10 is connected on the weldable steel component 18 of outer steel pipe 3 top-side of precast assembly bridge pier, the other end bolt of top viscous damper 10 is connected on the weldable steel component 19 of bent cap 2 bottom surface, and the angle between the line at top viscous damper 10 two ends and described bent cap bottom surface is between 30 degree to 60 degree.
In this particular embodiment, outer steel pipe 3 and interior steel pipe 4 four steel discs 6 that bottom end face is connected be separately positioned on bridge pier direction across bridge and vertical bridge to, the angle of adjacent tablet is 90 degree.Outer steel pipe 3 and interior steel pipe 4 four steel discs 6 that top end face is connected be separately positioned on bridge pier direction across bridge and vertical bridge to, the angle of adjacent tablet is 90 degree.
In this particular embodiment, between cushion cap 1 end face and this precast assembly bridge pier bottom sides four bottom viscous dampers 9 be separately positioned on bridge pier direction across bridge and vertical bridge to, the angle of adjacent damper plane projection is 90 degree.Four top viscous dampers 10 between this precast assembly pier coping portion side and bent cap 2 bottom surface be separately positioned on bridge pier direction across bridge and vertical bridge to, the angle of adjacent damper plane projection is 90 degree.
In this particular embodiment, cushion cap 1 end face and this precast assembly bridge pier central axis.
In this particular embodiment, bent cap 2 bottom surface and this precast assembly bridge pier central axis.
In this particular embodiment, outer steel pipe 3 and interior steel pipe 4 cross section of this Concrete Filled double-walled steel pipe precast assembly bridge pier are the ring cross-section in the same center of circle.
As shown in Figure 4, in this particular embodiment, cushion cap 1 end face pre-embedded steel slab comprises a steel plate 20 and four Ribbed Bar 21, and the external surface of steel plate 20 flushes with cushion cap 1 end face, and the preformed hole plug welding that four Ribbed Bar 21 are corresponding to steel plate 20 is welded.
As shown in Figure 5, in this particular embodiment, bent cap 2 bottom surface pre-embedded steel slab comprises a steel plate 22 and four Ribbed Bar 23, and the external surface of steel plate 22 flushes with bent cap 2 bottom surface, and the preformed hole plug welding that four Ribbed Bar 23 are corresponding to steel plate 22 is welded.
As shown in Figure 6, in this particular embodiment, the weldable steel component 16 of cushion cap 1 end face comprises two vertical steel plates 24 and a horizontal steel plate 25, the axis of bottom viscous damper 9 is vertical with horizontal steel plate 25, vertical steel plate 24 one end is together with horizontal steel plate 25 vertical welding, vertical steel plate 24 other end welds with the pre-embedded steel slab 20 of cushion cap end face, horizontal steel plate 25 is provided with circular hole 26, for the bolt of viscous damper bottom anchoring 9 lower end.
As shown in Figure 7, in this particular embodiment, the weldable steel component 17 of outer steel pipe 3 bottom sides of bridge pier comprises two vertical steel plates 27 and a horizontal steel plate 28, the axis of bottom viscous damper 9 is vertical with horizontal steel plate 28, vertical steel plate 27 one end is together with horizontal steel plate 28 vertical welding, vertical steel plate 27 other end welds with outer steel pipe 3 side of bridge pier, horizontal steel plate 28 is provided with circular hole 29, for the bolt of viscous damper bottom anchoring 9 upper end.
As shown in Figure 8, in this particular embodiment, the weldable steel component 18 of outer steel pipe 3 top-side of bridge pier comprises two vertical steel plates 30 and a horizontal steel plate 31, the axis of top viscous damper 10 is vertical with horizontal steel plate 31, vertical steel plate 30 one end is together with horizontal steel plate 31 vertical welding, vertical steel plate 30 other end welds with outer steel pipe 3 side of bridge pier, horizontal steel plate 31 is provided with circular hole 32, for the bolt of viscous damper 10 lower end, anchoring top.
As shown in Figure 9, in this particular embodiment, the weldable steel component 19 of bent cap 2 bottom surface comprises two vertical steel plates 33 and a horizontal steel plate 34, the axis of top viscous damper 10 is vertical with horizontal steel plate 34, vertical steel plate 33 one end is together with horizontal steel plate 34 vertical welding, vertical steel plate 33 other end welds with the pre-embedded steel slab 22 of bent cap bottom surface, and horizontal steel plate 34 is provided with circular hole 35, for the bolt of viscous damper 10 upper end, anchoring top.

Claims (9)

1. the soap-free emulsion polymeization post-tensioned prestressed concrete of an additional damping device fills double-walled steel pipe precast assembly bridge pier, comprise cushion cap, precast assembly bridge pier and bent cap, described precast assembly bridge pier is arranged on described cushion cap, described bent cap is arranged on described precast assembly bridge pier, described precast assembly bridge pier is Concrete Filled double-walled steel pipe precast assembly bridge pier, it is characterized in that described precast assembly bridge pier comprises outer steel pipe, interior steel pipe and fill concrete, described outer steel pipe is connected respectively by four steel discs with bottom end face at top with interior steel pipe, between described cushion cap end face and precast assembly bridge pier bottom end face, fiber-reinforced mortar layer is set, described precast assembly pier coping portion end face and bent cap bottom surface and between fiber-reinforced mortar layer is set, described cushion cap, precast assembly bridge pier and bent cap are by the assembled formation entirety of pre-stress stretching device, four bottom viscous dampers are set between described cushion cap end face and precast assembly bridge pier bottom sides, four top viscous dampers are set between described precast assembly pier coping portion side and bent cap bottom surface.
2. the soap-free emulsion polymeization post-tensioned prestressed concrete of a kind of additional damping device as claimed in claim 1 fills double-walled steel pipe precast assembly bridge pier, it is characterized in that described pre-stress stretching device comprises the fixed end ground tackle be separately positioned on bottom described cushion cap, be arranged on stretching end ground tackle and the presstressed reinforcing steel group at described bent cap top, described presstressed reinforcing steel group is through the lower prestress pipeline being arranged on cushion cap inside, described presstressed reinforcing steel group is through interior steel pipe, described presstressed reinforcing steel group is through the upper prestress pipe being arranged on bent cap inside, described presstressed reinforcing steel group utilizes stretch-draw jack stretch-draw at stretching end ground tackle place, bent cap top.
3. the soap-free emulsion polymeization post-tensioned prestressed concrete of a kind of additional damping device as claimed in claim 1 fills double-walled steel pipe precast assembly bridge pier, it is characterized in that a terminal bolt of described bottom viscous damper is connected on the weldable steel component of cushion cap end face, the other end bolt of described bottom viscous damper is connected on the weldable steel component of the outer steel pipe bottom sides of precast assembly bridge pier, and the angle between the line at described viscous damper two ends, bottom and described cushion cap end face is between 30 degree to 60 degree; One terminal bolt of described top viscous damper is connected on the weldable steel component of the outer steel pipe top side of precast assembly bridge pier, the other end bolt of described top viscous damper is connected on the weldable steel component of bent cap bottom surface, and the angle between the line at described viscous damper two ends, top and described bent cap bottom surface is between 30 degree to 60 degree.
4. the soap-free emulsion polymeization post-tensioned prestressed concrete of a kind of additional damping device as claimed in claim 1 fills double-walled steel pipe precast assembly bridge pier, it is characterized in that described outer steel pipe and interior steel pipe four steel discs that bottom end face is connected be separately positioned on bridge pier direction across bridge and vertical bridge to, the angle of adjacent tablet is 90 degree; Described outer steel pipe and interior steel pipe four steel discs that top end face is connected be separately positioned on bridge pier direction across bridge and vertical bridge to, the angle of adjacent tablet is 90 degree; Between described cushion cap end face and precast assembly bridge pier bottom sides four bottom viscous dampers be separately positioned on bridge pier direction across bridge and vertical bridge to, the angle of adjacent damper plane projection is 90 degree; Four top viscous dampers between described precast assembly pier coping portion side and bent cap bottom surface be separately positioned on bridge pier direction across bridge and vertical bridge to, the angle of adjacent damper plane projection is 90 degree.
5. the soap-free emulsion polymeization post-tensioned prestressed concrete of a kind of additional damping device as claimed in claim 1 fills double-walled steel pipe precast assembly bridge pier, it is characterized in that described cushion cap end face and described precast assembly bridge pier central axis, described bent cap bottom surface and described precast assembly bridge pier central axis, the outer steel pipe of described Concrete Filled double-walled steel pipe precast assembly bridge pier and interior steel tube section are the ring cross-section in the same center of circle; Described cushion cap end face pre-embedded steel slab comprises a steel plate and four Ribbed Bar, and the external surface of steel plate flushes with cushion cap end face, the preformed hole plug welding welding that four Ribbed Bar are corresponding to steel plate; Described bent cap bottom surface pre-embedded steel slab comprises a steel plate and four Ribbed Bar, and the external surface of steel plate flushes with bent cap bottom surface, the preformed hole plug welding welding that four Ribbed Bar are corresponding to steel plate.
6. the soap-free emulsion polymeization post-tensioned prestressed concrete of a kind of additional damping device as claimed in claim 3 fills double-walled steel pipe precast assembly bridge pier, it is characterized in that the weldable steel component of described cushion cap end face comprises two vertical steel plates and a horizontal steel plate, the axis of described bottom viscous damper is vertical with described horizontal steel plate, described vertical steel plate one end is together with described horizontal steel plate vertical welding, the described vertical steel plate other end welds with the pre-embedded steel slab of cushion cap end face, described horizontal steel plate is provided with circular hole, for the bolt of viscous damper lower end bottom anchoring.
7. the soap-free emulsion polymeization post-tensioned prestressed concrete of a kind of additional damping device as claimed in claim 3 fills double-walled steel pipe precast assembly bridge pier, it is characterized in that the weldable steel component of the outer steel pipe bottom sides of described bridge pier comprises two vertical steel plates and a horizontal steel plate, the axis of described bottom viscous damper is vertical with described horizontal steel plate, described vertical steel plate one end is together with described horizontal steel plate vertical welding, the described vertical steel plate other end welds with the outer steel pipe side of bridge pier, described horizontal steel plate is provided with circular hole, for the bolt of viscous damper upper end bottom anchoring.
8. the soap-free emulsion polymeization post-tensioned prestressed concrete of a kind of additional damping device as claimed in claim 3 fills double-walled steel pipe precast assembly bridge pier, it is characterized in that the weldable steel component of the outer steel pipe top side of described bridge pier comprises two vertical steel plates and a horizontal steel plate, the axis of described top viscous damper is vertical with described horizontal steel plate, described vertical steel plate one end is together with described horizontal steel plate vertical welding, the described vertical steel plate other end welds with the outer steel pipe side of bridge pier, described horizontal steel plate is provided with circular hole, for the bolt of viscous damper lower end, anchoring top.
9. the soap-free emulsion polymeization post-tensioned prestressed concrete of a kind of additional damping device as claimed in claim 3 fills double-walled steel pipe precast assembly bridge pier, it is characterized in that the weldable steel component of described bent cap bottom surface comprises two vertical steel plates and a horizontal steel plate, the axis of described top viscous damper is vertical with described horizontal steel plate, described vertical steel plate one end is together with described horizontal steel plate vertical welding, the described vertical steel plate other end welds with the pre-embedded steel slab of bent cap bottom surface, described horizontal steel plate is provided with circular hole, for the bolt of viscous damper upper end, anchoring top.
CN201510036435.6A 2015-01-22 2015-01-22 Unbonded post-tensioning prestress concrete-filled double-wall steel pipe prefabricated assembly piers with additional dampers CN104612036A (en)

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CN108951402A (en) * 2018-06-29 2018-12-07 南京理工大学 Improve the device of Precast Concrete Segmental Bridges bridge pier energy dissipation capacity
CN108951435A (en) * 2018-06-29 2018-12-07 南京理工大学 The method for improving existing assembled bridge pier energy dissipation capacity
CN109440631A (en) * 2018-12-10 2019-03-08 三峡大学 A method of building, bridge bradyseism are realized using non-newtonian flow body device
CN110306862A (en) * 2019-06-10 2019-10-08 山东科技大学 Steel pipe pole and construction method with steadying line
CN110306862B (en) * 2019-06-10 2021-02-19 山东科技大学 Steel pipe pole with stabilizing cable and construction method

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