CN208379423U

CN208379423U - A kind of concrete column

Info

Publication number: CN208379423U
Application number: CN201820369463.9U
Authority: CN
Inventors: 张力文; 尚清虎; 孙卓; 刘周强; 邹志伟; 耿涛; 黄毅平
Original assignee: Guangzhou University
Current assignee: Guangzhou University
Priority date: 2018-03-16
Filing date: 2018-03-16
Publication date: 2019-01-15
Anticipated expiration: 2028-03-16

Abstract

The utility model discloses a kind of concrete columns, belong to building structure technology field, it includes composite shell and the normal concrete that is cast in inside composite shell, composite shell is closed multi-layer compound structure, composite shell wrapping layer and inside wrapping layer on the outside of being followed successively by inside outside, outside wrapping layer and inside wrapping layer constitute inner cavity, are cast with ultra-high performance concrete in inner cavity, ultra-high performance concrete is embedded with longitudinal supporting rib；The material of outside wrapping layer and inside wrapping layer is fibre reinforced composites.The composite construction of the utility model concrete column is optimized, and can be extended and be used time and save the cost.

Description

A kind of concrete column

Technical field

The utility model belongs to building structure technology field more particularly to a kind of concrete column.

Background technique

Concrete column is a kind of common structural elements form, generally as bridge pier or pile foundation in bridge structure, It is main supporting member.Since most of bridge pier and pile foundation are under wet environment, common concrete column will receive serious It corrodes, especially at sea or littoral area, this can produce serious threat to the safety of bridge structure.

Ultra-high performance concrete is a kind of new material, with the characteristic that ductility is good, intensity is high, impermeability is strong；With Ultra-high performance concrete pours normal concrete as shell, inside, by way of forming complex coagulation earth pillar, to improve bridge Pier or pile foundation resist the ability that external environment corrodes.However, ultra-high performance concrete shrinkage is larger, this causes very-high performance mixed Solidifying soil shell is also easy to produce subtle crack, reduces ultra-high performance concrete shell to the protective value of inner concrete.In addition, Since ultra-high performance concrete outer shell is relatively thin, it is more difficult to configure stirrup, cause concrete column when under pressure, very-high performance is mixed Solidifying soil shell also can lateral magnification, generation micro-cracks due to compression；This equally also reduces ultra-high performance concrete shell Protective value.

Therefore, it is necessary to design a kind of concrete column of novel structure, common concrete column and superelevation can be improved The durability of energy concrete casing column.

Utility model content

The utility model aim is to overcome the shortcomings of the prior art, and provides a kind of concrete column, composite junction Structure is optimized, and can be extended and be used time and save the cost.

To achieve the above object, a kind of technical solution that the utility model is taken are as follows: concrete column comprising composite shell And it is cast in the normal concrete inside the composite shell, the composite shell is closed multi-layer compound structure, described Composite shell wrapping layer and inside wrapping layer, the outside wrapping layer and inside wrapping layer structure on the outside of being followed successively by inside outside At inner cavity, ultra-high performance concrete is cast in the inner cavity, the ultra-high performance concrete is embedded with longitudinal supporting rib；Institute The material for stating outside wrapping layer and the inside wrapping layer is fibre reinforced composites.

Preferably, ultra-high performance concrete is to add various industrial waste residues with portland cement for basic gelling system to be Active adjuvants, using high-intensitive coarse aggregate and short thin, high-intensitive steel fibre as reinforced phase, using room temperature maintenance, normal agitation It is prepared by equal common process；The ultra-high performance concrete has works fine performance simultaneously, and the compression strength after hardening is big In 150MPa, and has excellent endurance quality.

The concrete column of the utility model is with durability is good, bearing capacity is strong, ductility is good and economic performance is superior excellent Point:

1) due to fibre reinforced composites (FRP) be a kind of tensile strength is high, corrosion resistant new material (especially It is strong to the corrosion resistance of chloride ion), inside and outside package constraint is carried out to ultra-high performance concrete using FRP, it not only can be effective The contraction distortion of ultra-high performance concrete is prevented, the lateral expansion of ultra-high performance concrete shell can also be deformed and be carried out effectively Constraint, prevents its cracking, improves the use effect of ultra-high performance concrete；

2) outside wrapping layer and inside wrapping layer also provide Additional Protection to resistance external environment erosion, will be original common Longitudinal bracing muscle is placed in ultra-high performance concrete in concrete, is not only increased normal concrete die area, is improved Normal concrete bearing capacity；And due to the utilization rate for increasing normal concrete, the dosage of supporting rib is also reduced, is saved Muscle material；

3) due to outside wrapping layer and inside wrapping layer to the constraint of ultra-high performance concrete and composite shell to inside The constraint of normal concrete may not necessarily will configure stirrup in the new concrete column, equally save muscle material.

As an improvement of the above technical solution, the outside wrapping layer is fabric or tubing, and the inside wrapping layer is to knit Object or tubing.

Preferably, when outside wrapping layer is fabric or the inside wrapping layer is fabric, outside wrapping layer or inside packet Covering layer is bonded by the binders such as epoxy resin and the ultra-high performance concrete.

As an improvement of the above technical solution, the fibre reinforced composites are carbon fiber, glass fibre or basalt Fiber.

As an improvement of the above technical solution, the material of the supporting rib is steel or fibre reinforced composites.

As a further improvement of the above technical scheme, the fibre reinforced composites be carbon fiber, glass fibre or Basalt fibre.

As a further improvement of the above technical scheme, the brace rod surface is equipped with frosted, indentation or screw thread.

The utility model has the beneficial effects that: the utility model provides a kind of concrete column, which includes multiple Close shell and the normal concrete that is cast in inside composite shell, composite shell is from being followed successively by outside wrapping layer, super inside outside The material of high performance concrete and inside wrapping layer, outside wrapping layer and inside wrapping layer is FRP；Outside wrapping layer and inside packet Covering layer is protected and is constrained to ultra-high performance concrete, and composite shell is protected and constrained to normal concrete；Concrete The composite construction of column is optimized, and can be extended and be used time and save the cost.

Detailed description of the invention

Fig. 1 is a kind of cross-sectional of embodiment of concrete column described in the utility model；

Fig. 2 is a kind of axonometric drawing of embodiment of concrete column described in the utility model；

In fig. 1 and 2,1, outside wrapping layer, 2, inside wrapping layer, 3, ultra-high performance concrete, 4, supporting rib, 5, general Logical concrete.

Specific embodiment

For the purpose of this utility model, technical solution and advantage is better described, below in conjunction with specific embodiment and attached The utility model is described in further detail for figure.

Embodiment 1

A kind of embodiment of concrete column described in the utility model, as depicted in figs. 1 and 2 comprising composite shell and The normal concrete 5 being cast in inside composite shell, composite shell are closed multi-layer compound structure, and composite shell is from outside inside It is followed successively by outside wrapping layer 1 and inside wrapping layer 2, outside wrapping layer 1 and inside wrapping layer 2 constitute inner cavity, be cast in inner cavity Ultra-high performance concrete 3, ultra-high performance concrete 3 are embedded with longitudinal supporting rib 4；Outside wrapping layer 1 and inside wrapping layer 2 Material is FRP.

Preferably, outside wrapping layer 1 and inside wrapping layer 2 are fabric, and outside wrapping layer 1 and inside wrapping layer 2 pass through ring The binders such as oxygen resin are bonded with ultra-high performance concrete 3.

Preferably, the material of supporting rib is steel or FRP.

Preferably, FRP is carbon fiber, glass fibre or basalt fibre.

Preferably, brace rod surface is equipped with frosted.

Embodiment 2

A kind of embodiment of concrete described in the utility model, as depicted in figs. 1 and 2 comprising composite shell and pour Infuse normal concrete 5 inside composite shell, composite shell is closed multi-layer compound structure, composite shell from outside inside according to Secondary is outside wrapping layer 1 and inside wrapping layer 2, and outside wrapping layer 1 and inside wrapping layer 2 constitute inner cavity, be cast in inner cavity super High performance concrete 3, ultra-high performance concrete 3 are embedded with longitudinal supporting rib 4；The material of outside wrapping layer 1 and inside wrapping layer 2 Matter is FRP.

Preferably, outside wrapping layer 1 and inside wrapping layer 2 are tubing.

Preferably, the material of supporting rib is steel or FRP.

Preferably, FRP is carbon fiber, glass fibre or basalt fibre.

Preferably, brace rod surface sets screw thread.

Compared with traditional common concrete column and concrete column comprising ultra-high performance concrete shell, the utility model Concrete column solves the problems, such as that environment resistant erosion effect is low, has green, energy conservation and environmental-protecting performance.

Finally, it should be noted that above embodiments are to illustrate the technical solution of the utility model rather than to originally practical The limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, the common skill of this field Art personnel, which should be appreciated that, can modify to the technical solution of the utility model or replace on an equal basis, practical without departing from this The spirit and scope of new technique scheme.

Claims

1. a kind of concrete column, which is characterized in that including composite shell and be cast in common mixed inside the composite shell Solidifying soil, the composite shell are closed multi-layer compound structure, the composite shell from be followed successively by inside outside outside wrapping layer and Inside wrapping layer, the outside wrapping layer and the inside wrapping layer constitute inner cavity, and it is mixed that very-high performance is cast in the inner cavity Solidifying soil, the ultra-high performance concrete are embedded with longitudinal supporting rib；The material of the outside wrapping layer and the inside wrapping layer Matter is fibre reinforced composites.

2. concrete column as described in claim 1, which is characterized in that the outside wrapping layer be fabric or tubing, it is described in Side wrapping layer is fabric or tubing.

3. concrete column as described in claim 1, which is characterized in that the fibre reinforced composites are carbon fiber, glass Fiber or basalt fibre.

4. concrete column as described in claim 1, which is characterized in that the material of the supporting rib is steel or fiber-reinforced composite Material.

5. concrete column as claimed in claim 4, which is characterized in that the fibre reinforced composites are carbon fiber, glass Fiber or basalt fibre.

6. concrete column as claimed in claim 4, which is characterized in that brace rod surface is equipped with frosted, indentation or screw thread.