CN203938962U - The rubber concrete hollow pier with inside and outside constraint - Google Patents

The rubber concrete hollow pier with inside and outside constraint Download PDF

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Publication number
CN203938962U
CN203938962U CN201320889524.1U CN201320889524U CN203938962U CN 203938962 U CN203938962 U CN 203938962U CN 201320889524 U CN201320889524 U CN 201320889524U CN 203938962 U CN203938962 U CN 203938962U
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CN
China
Prior art keywords
tube
diaphragm
pier
bridge pier
circle
Prior art date
Application number
CN201320889524.1U
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Chinese (zh)
Inventor
卢彭真
唐峰
喻军
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浙江工业大学
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Priority to CN201320889524.1U priority Critical patent/CN203938962U/en
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Publication of CN203938962U publication Critical patent/CN203938962U/en

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Abstract

The rubber concrete hollow pier with inside and outside constraint, comprise outer tube, inner tube, diaphragm, vertical clapboard, concrete cover, the external surface of outer tube distribute for increasing and concrete cover between the WELDING STUDS of adhesion, concrete cover is coated on the outer wall of outer tube; Described inner tube is coaxially arranged on the inside of described outer tube; Between outer tube and inner tube, along axis direction, be provided with polylith with the diaphragm of centre bore, and the inward flange of diaphragm is fixed with outer wall of inner tube, outward flange is connected with outer tube wall, is formed for holding the cavity of rubber concrete; In cavity, be provided with polylith vertical clapboard, two sides of every vertical clapboard are fixed with outer wall of inner tube, outer tube wall respectively.The beneficial effects of the utility model are: the efficiency frontier condition of the rubber concrete three dimension stress of filling, and bearing capacity improves, and damping effect is obvious, effectively reduce bridge pier sectional dimension, dismounting is simple, reduces difficulty of construction, save template materials, resource-conserving, environmental protection is friendly.

Description

The rubber concrete hollow pier with inside and outside constraint
Technical field
The utility model relates to a kind of rubber concrete hollow pier with inside and outside constraint.
Background technology
Concrete hollow bridge pier refers to the reinforced concrete bridge pier of boring, and it is a kind of bridge pier section optimal form of substructure lightness, economization.It has that sectional area is little, cross section resistance moment is large, from the good feature of heavy and light, the rigidity of structure and bearing capacity, at highway and railway territory, all have a wide range of applications, be used for high pier situation.Hollow pier and Solid gravity pier comparison, generally can reduce concrete amount 40%~60%.
In the highway and railway construction in China mountain area, because the variation of landform is larger, high pier has accounted for very large ratio, and pier is comparatively general up to the high pier to more than 50m.In territory, earthquake-prone region, for this type of bridge pier, ordinary reinforced concrete hollow pier is partial to rigidity, and seismic damage easily occurs, and damping effect is poor.And rubber concrete hollow pier, due to the combination of concrete and rubber grain, can effectively absorb seismic energy, be difficult for occurring seismic damage, good damping effect.
In application, there is following problem in common reinforced concrete hollow pier: 1) hollow due to inside, cross section, and in bridge pier, lateral wall concrete loses constraint, and in inside, without restrained condition, overall performance is poor; 2) under seismic loading, reinforced concrete hollow pier is partial to rigidity, and shear failure easily occurs; 3) hollow pier inner space is narrow and small, during construction inner template set up with remove extremely difficult.
Summary of the invention
The utility model for current reinforced concrete hollow pier sidewall concrete without constraint, easily there is the problem of seismic damage, proposed a kind of not fragile, bearing capacity is high, ductility good, the rubber concrete hollow pier with inside and outside constraint that good endurance, damping performance be good, be particularly suitable for territory, earthquake-prone region.
The rubber concrete hollow pier with inside and outside constraint described in the utility model, it is characterized in that: comprise outer tube, inner tube, diaphragm, vertical clapboard, concrete cover, the external surface of described outer tube distribute for increasing and concrete cover between the WELDING STUDS of adhesion, described concrete cover is coated on the outer wall of described outer tube; Described inner tube is coaxially arranged on the inside of described outer tube; Between described outer tube and inner tube, along axis direction, be provided with polylith with the diaphragm of centre bore, and the inward flange of diaphragm is fixed with outer wall of inner tube, outward flange is connected with outer tube wall, is formed for holding the cavity of rubber concrete; In described cavity, be provided with polylith vertical clapboard, and two sides of every vertical clapboard are fixed with outer wall of inner tube, outer tube wall respectively.
Described diaphragm is equidistantly arranged along bridge pier vertical direction, and described diaphragm is all in horizontal direction.
The outline of described diaphragm is identical with outer tube, centre bore profile is identical with inner tube, and the outward flange of diaphragm is close to outer tube wall welding, inward flange is close to outer wall of inner tube welding.
The cross section of described bridge pier and the cross section of outer steel pipe are any one in circle, rectangle, hexagon, ellipse or nose circle shape.
The cross section of the cross section of described bridge pier, outer tube and inner tube is that circle or rectangle, inner tube are that cross section is circle or rectangle;
Or the cross section of described bridge pier is that the cross section of circle, outer tube and inner tube is circle;
Or the cross section of described bridge pier and the cross section of outer tube is that the cross section of hexagon, inner tube is circle;
Or the cross section of described bridge pier is that the cross section of nose circle shape, outer tube and inner tube is nose circle shape;
Or the cross section of described bridge pier is that the cross section of ellipse, outer tube and inner tube is ellipse.
Distance between adjacent two diaphragms is less than or equal to the minimum dimension of bridge pier cross-sectional profile, wherein, the diameter that the minimum dimension of described bridge pier cross-sectional profile is circular cross-section or the minor face of square-section or the minor axis of elliptic cross-section length or the nose circle diameter of nose circle tee section or the inscribed circle diameter of hexagonal cross-section.
Described outer tube, inner tube, diaphragm and vertical clapboard all adopt steel to make.
In the utility model structure, inner and outer pipes connects through vertical clapboard, in bearing load process, whole skeleton stability is better, intermediate rubber concrete side walls is subject to the inside and outside constraint of inner and outer pipes simultaneously, and in triaxial stress state, its bearing capacity and ductility are greatly enhanced; The dispersed placement of vertical clapboard, provides condition for inner and outer pipes forms whole skeleton, has avoided vertical clapboard to concentrate a small amount of sudden change that causes rigidity of section of arranging, prevents bridge pier hollow section and the vertical clapboard intersecting area concentrated destruction under earthquake disaster; Meanwhile, the effective absorption by rubber concrete to seismic energy, can provide effective protection to the bridge pier under geological process, thereby has guaranteed to a great extent the general safety of bridge construction.
The beneficial effects of the utility model are: (1) has formed the middle concrete lateral restraint of bridge pier jointly through interior steel pipe and the outer steel pipe of junction steel plate dispersed placement, be that outer and inner tube associating skeleton provides inside and outside extruding constraint, it has set up the efficiency frontier condition of intermediate rubber concrete three dimension stress; (2) the middle concrete that is rubber concrete hollow pier through interior steel pipe and the outer steel pipe of junction steel plate dispersed placement provides strong support, can effectively protect intermediate rubber concrete may destroy under seismic load, utilize the energy-absorbing function of rubber concrete simultaneously, avoided the hollow adverse effect of bringing to bridge pier intermediate rubber concrete of seismic loading lower section; (3) inner and outer pipes and middle rubber concrete co-operation, form combining structure, and bearing capacity is improved, and damping effect is obvious, has effectively reduced the sectional dimension of rubber concrete hollow pier; (4) interior steel pipe provides hollow inside template for rubber concrete hollow pier, has eliminated setting up and removing operation of common inner formword, has reduced the difficulty of construction of the hollow structure in cross section, has saved template materials.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section that bridge pier cross section and outer and inner tube are circular outer and inner tube constraint rubber concrete hollow pier;
Fig. 2 is the principle Analysis figure (r1: outer steel cylinder wall is to wrapping up concrete compressive stress that bridge pier cross section and outer and inner tube are circular outer and inner tube constraint rubber concrete hollow pier; σ r2: interior steel cylinder wall is to wrapping up concrete compressive stress; σ c: section place and steel cylinder external force f 1ya sand f 2ya sthe concrete compressive stress balancing each other; f 2ya s: the reaction pulling force that when section place parcel concrete is squeezed, internal steel cylinder wall produces; f 1ya s: the reaction pulling force that when section place parcel concrete is squeezed, external steel cylinder wall produces);
Fig. 3 is the sectional drawing along A-A line in Fig. 2.
Fig. 4~Fig. 9 is the embodiment of bridge pier cross section and inner and outer pipes different cross section form, as follows respectively:
Fig. 4 is the schematic cross-section that bridge pier cross section and inner and outer pipes are circular inner and outer pipes constraint rubber concrete hollow pier;
Fig. 5 is the schematic cross-section that bridge pier cross section and outer and inner tube are the inner and outer pipes constraint rubber concrete hollow pier of rectangle;
Fig. 6 is that bridge pier cross section is that hexagonal cross-section, outer tube are that hexagon inner tube is the schematic cross-section of the inner and outer pipes constraint rubber concrete hollow pier of circular cross-section;
Fig. 7 is that bridge pier cross section is that square-section, outer tube are that rectangle inner tube is the schematic cross-section of the inner and outer pipes constraint rubber concrete hollow pier of circular cross-section;
Fig. 8 is the schematic cross-section that bridge pier cross section and inner and outer pipes are the inner and outer pipes constraint rubber concrete hollow pier of nose circle shape;
Fig. 9 is the schematic cross-section that bridge pier cross section and outer and inner tube are oval-shaped inner and outer pipes constraint rubber concrete hollow pier;
The specific embodiment
Below in conjunction with accompanying drawing, further illustrate the utility model
With reference to accompanying drawing:
The embodiment 1 rubber concrete hollow pier with inside and outside constraint described in the utility model, comprise outer tube 1, inner tube 2, diaphragm 3, vertical clapboard 4, concrete cover 5, the external surface of described outer tube 1 distribute for increasing and concrete cover 5 between the WELDING STUDS 11 of adhesion, described concrete cover 5 is coated on the outer wall of described outer tube 1; Described inner tube 2 is coaxially arranged on the inside of described outer tube 1; Between described outer tube 1 and inner tube 2, along axis direction, be provided with polylith with the diaphragm 3 of centre bore, and the inward flange of diaphragm 3 is fixed with inner tube 2 outer walls, outward flange is connected with outer tube 1 inwall, is formed for holding the cavity of rubber concrete 6; In described cavity, be provided with polylith vertical clapboard 4, and two sides of every vertical clapboard 4 are fixed with inner tube 2 outer walls, outer tube 1 inwall respectively.
Described diaphragm 3 is equidistantly arranged along bridge pier vertical direction, and described diaphragm 3 is all in horizontal direction.
The outline of described diaphragm 3 is identical with outer tube 1, centre bore profile is identical with inner tube 2, and the outward flange of diaphragm 3 is close to outer tube 1 inwall welding, inward flange is close to inner tube 2 outer walls welding.
The cross section of the cross section of described bridge pier, outer tube 1 and inner tube is any one in circle, rectangle, hexagon, ellipse or nose circle shape.
The cross section of the cross section of described bridge pier and outer tube 1 be circle or rectangle, inner tube 2 for cross section be circle or rectangle;
Or the cross section of described bridge pier is that the cross section of circle, outer tube 1 and inner tube 2 is circle;
Or the cross section of the cross section of described bridge pier and outer tube 1 is that the cross section of hexagon, inner tube 2 is circle;
Or the cross section of described bridge pier is that nose circle shape, outer tube 1 are nose circle shape with the cross section of inner tube 2;
Or the cross section of described bridge pier is that ellipse, outer tube 1 are ellipse with the cross section of inner tube 2.
Distance between adjacent two diaphragms 3 is less than or equal to the minimum dimension of bridge pier cross-sectional profile, wherein, the diameter that the minimum dimension of described bridge pier cross-sectional profile is circular cross-section or the minor face of square-section or the minor axis of elliptic cross-section length or the nose circle diameter of nose circle tee section or the inscribed circle diameter of hexagonal cross-section.
Described outer tube, inner tube, diaphragm and vertical clapboard all adopt steel to make.
As shown in Figure 2, in the middle of rubber concrete damping hollow pier, concrete outside is subject to the restraint forces σ of outer tube 1 ecto-entad to embodiment 2 r1, inner side is subject to inner tube 2 restraint forces σ from inside to outside r2in triaxial stress state, the mechanical property of sidewall rubber concrete has produced essential variation, strength and ductility is greatly improved, outer tube 1 and inner tube 2 are strengthened through vertical clapboard 4, for the sidewall of hollow pier provides strong effective inside and outside, support, utilize the energy-absorbing function of rubber concrete simultaneously, can effectively reduce the destruction of this bridge pier under seismic loading.
Embodiment 3 for the installation steps of the bridge pier described in embodiment 1 is: first process inner tube 2 and outer tube 1, diaphragm 3 and vertical clapboard 4 are installed afterwards, outer tube 1 inwall and inner tube 2 outer wall welding are close in vertical clapboard 4 two ends, the steel plate thickness of vertical clapboard 4 is identical with outer and inner tube thickness, its width should not be less than 50mm, diaphragm 3 is arranged along bridge pier vertical levels interval, its arrangement pitch is not more than the minimum dimension of bridge pier cross-sectional shape, the minimum dimension of bridge pier cross-sectional shape is minor axis length or the nose circle diameter of nose circle tee section or the inscribed circle diameter of hexagonal cross-section of the diameter of circular cross-section or the minor face of square-section or elliptic cross-section, after inner tube 2 and outer tube 1 and diaphragm 3 and vertical clapboard 4 have been welded to connect, install handling to job site, after installation, at outer tube 1 outer wall, weld WELDING STUDS 11, support template subsequently, concreting, inner tube 2 is inner vacant, complete a kind of making of outer and inner tube constraint rubber concrete hollow pier.
Content described in this manual embodiment is only enumerating the way of realization of utility model design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also comprises those skilled in the art's equivalent technologies means that design can be expected according to the utility model.

Claims (5)

1. the rubber concrete hollow pier with inside and outside constraint, it is characterized in that: comprise outer tube, inner tube, diaphragm, vertical clapboard, concrete cover, the external surface of described outer tube distribute for increasing and concrete cover between the WELDING STUDS of adhesion, described concrete cover is coated on the outer wall of described outer tube; Described inner tube is coaxially arranged on the inside of described outer tube; Between described outer tube and inner tube, along axis direction, be provided with polylith with the diaphragm of centre bore, and the inward flange of diaphragm is fixed with outer wall of inner tube, outward flange is connected with outer tube wall, be formed for holding the cavity of rubber concrete, and described diaphragm is equidistantly arranged along bridge pier vertical direction, described diaphragm is all in horizontal direction; In described cavity, be provided with polylith vertical clapboard, and two sides of every vertical clapboard are fixed with outer wall of inner tube, outer tube wall respectively.
2. the rubber concrete hollow pier with inside and outside constraint as claimed in claim 1, it is characterized in that: the outline of described diaphragm is identical with outer tube, centre bore profile is identical with inner tube, and the outward flange of diaphragm is close to outer tube wall welding, inward flange is close to outer wall of inner tube welding.
3. the rubber concrete hollow pier with inside and outside constraint as claimed in claim 2, is characterized in that: the cross section of described bridge pier and the cross section of outer steel pipe are any one in circle, rectangle, hexagon, ellipse or nose circle shape.
4. the rubber concrete hollow pier with inside and outside constraint as claimed in claim 3, is characterized in that: the cross section of the cross section of described bridge pier, outer tube and inner tube is that circle or rectangle, inner tube are that cross section is circle or rectangle;
Or the cross section of described bridge pier is that the cross section of circle, outer tube and inner tube is circle;
Or the cross section of described bridge pier and the cross section of outer tube is that the cross section of hexagon, inner tube is circle;
Or the cross section of described bridge pier is that the cross section of nose circle shape, outer tube and inner tube is nose circle shape;
Or the cross section of described bridge pier is that the cross section of ellipse, outer tube and inner tube is ellipse.
5. the rubber concrete hollow pier with inside and outside constraint as claimed in claim 4, it is characterized in that: the distance between adjacent two diaphragms is less than or equal to the minimum dimension of bridge pier cross-sectional profile, wherein, the diameter that the minimum dimension of described bridge pier cross-sectional profile is circular cross-section or the minor face of square-section or the minor axis of elliptic cross-section length or the nose circle diameter of nose circle tee section or the inscribed circle diameter of hexagonal cross-section.
CN201320889524.1U 2013-12-30 2013-12-30 The rubber concrete hollow pier with inside and outside constraint CN203938962U (en)

Priority Applications (1)

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CN201320889524.1U CN203938962U (en) 2013-12-30 2013-12-30 The rubber concrete hollow pier with inside and outside constraint

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103741591A (en) * 2013-12-30 2014-04-23 浙江工业大学 Rubber concrete hollow pier with internal and external constraint
CN104831641A (en) * 2015-05-19 2015-08-12 福州大学 Bridge pier consolidation and restoration structure based on super-high-performance concrete and construction method thereof
CN106192730A (en) * 2016-08-01 2016-12-07 上海应用技术学院 A kind of steel bushing precast splice type bridge pier of band WELDING STUDS

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103741591A (en) * 2013-12-30 2014-04-23 浙江工业大学 Rubber concrete hollow pier with internal and external constraint
CN103741591B (en) * 2013-12-30 2015-10-07 浙江工业大学 There is the rubber concrete hollow pier of inside and outside constraint
CN104831641A (en) * 2015-05-19 2015-08-12 福州大学 Bridge pier consolidation and restoration structure based on super-high-performance concrete and construction method thereof
CN106192730A (en) * 2016-08-01 2016-12-07 上海应用技术学院 A kind of steel bushing precast splice type bridge pier of band WELDING STUDS

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C14 Grant of patent or utility model
GR01 Patent grant
C25 Abandonment of patent right or utility model to avoid double patenting
AV01 Patent right actively abandoned

Granted publication date: 20141112

Effective date of abandoning: 20151007