CN2765965Y

CN2765965Y - Hollow steel pipe concrete column

Info

Publication number: CN2765965Y
Application number: CN 200420013356
Authority: CN
Inventors: 徐国林; 吕清明; 曹登敬
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-10
Filing date: 2004-12-28
Publication date: 2006-03-22
Anticipated expiration: 2014-12-28

Abstract

The utility model discloses a concrete column for a hollow steel pipe, which comprises a steel pipe column which is arranged as the outer layer of the concrete column. The utility model has the essential point that a concrete column of which the middle part is provided with a hollow cavity is arranged inside the steel pipe column, and the concrete column is tightly combined with the inner wall of the steel pipe column to form a whole; the outer surface of the steel pipe column is provided with an anticorrosive coating. The utility model has the advantage of reasonable structure, fully exerts the advantages of the two structures of the steel pipe column and the concrete column and also has the advantages of light weight and high constructional carrying capacity. Constructional elements can be produced in factories by the utility model especially in a method of efference, formation, etc., thereby, the utility model has the characteristics of few construction procedures, high construction speed, low cost and low construction cost. The utility model is an ideal novel steel pipe concrete column which can be widely used in aspects, such as, industrial factory buildings, high-rise buildings, various pipe support stands, viaducts, billboard support posts, etc.

Description

The hollow steel tube concrete column

Affiliated technical field

The utility model relates to the building structural element technical field, and specifically a kind of skin is a steel pipe, and internal layer is the steel core concrete column structural member of hollow concrete post.

Background technology

The principal post structure of existing industry, civil building roughly comprises concrete and prestressed reinforced concrete post, steel structure column and solid steel pipe concrete column.In these three kinds of principal post structures, though concrete and prestressed reinforced concrete post cost are low, own wt is big, the joint construction complexity, and construction is difficulty relatively, and distortion is big, and antidetonation and shock resistance are poor, easily crack, and influence application life.Though steel structure column processing, construction and assembling are all more convenient, steel quantity consumption is big, the cost height, and local stability is poor, and rigidity is little, and distortion is big.The solid steel pipe concrete column is as a kind of novel form of structure, have many reinforced concrete structures and steel work the advantage that can not compare, given full play to the advantage of steel and two kinds of materials of concrete, improved structure bearing capacity greatly, increased rigidity, reduced distortion, antidetonation and anticollision performance and refractoriness all are greatly improved.This concrete filled steel tube rod structure just is being widely used in each building fields such as highrise building, bridge engineering.But it wants pouring concrete in-situ, has increased working procedure, influences construction speed, has also increased construction costs.

Summary of the invention

In order to overcome the deficiency that existing steel core concrete column structurally exists, it is a kind of rational in infrastructure that the utility model provides, and performance is good, and is in light weight, do not need placing of concrete at the scene, and can accelerate speed of application, the hollow steel tube concrete column that reduces cost.

The technical scheme that its technical problem that solves the utility model adopts is: this hollow steel tube concrete column, comprise and be provided with outer field steel pipe column, mainly be in the middle of being provided with in the inside of steel pipe column for cavity and with the steel pipe column inwall all-in-one-piece concrete column of combining closely, be provided with corrosion-inhibiting coating at the external surface of steel pipe column; Said steel pipe column and with the steel pipe column inwall combine closely all-in-one-piece, middle be that the concrete column of cavity, their cross section are square or circle, polygon, rectangle, ellipse; Said steel pipe column and with the steel pipe column inwall combine closely all-in-one-piece, middle be the concrete column of cavity, they are uniform section or variable section structure along the cross section on the column length direction; Shaft can have various connectors according to instructions for use.

The utility model can be made open side type according to the characteristics and the concrete engine request of building structure, structures such as two limbs or many limbs combined type post, and adopt steel structure connecting member to connect.

The utility model compared with prior art, mainly be to have solved the deficiency that at present existing steel core concrete column exists on form of structure, given full play to the advantage of steel pipe column and two kinds of structures of concrete column, both alleviated weight, improved structure bearing capacity again, made this steel core concrete column have better antidetonation and anti-collision ability.Main is to make member production plantization by methods such as centrifugal formings, does not need placing of concrete at the scene, thereby can reduce working procedure, accelerates speed of application, saves cost, reduces cost.Next is after steel pipe column external coating corrosion-inhibiting coating, has improved the oxidation resistance on steel pipe column surface greatly, makes any surface finish, attractive in appearance of steel pipe column, increases the service life.

Description of drawings

Fig. 1 is that the utility model cross section is circular structural representation;

Fig. 2 is vertical uniform section structural representation of Fig. 1;

Fig. 3 is the longitudinal variable cross-section structural representation of Fig. 1;

Fig. 4 is that the utility model cross section is polygonal structural representation;

Fig. 5 is that the horizontal cross section of the utility model is the structural representation of rectangle;

Fig. 6 is that the horizontal cross section of the utility model is foursquare structure structural representation;

Fig. 7 is that the utility model cross section is oval-shaped structural representation.

1. corrosion-inhibiting coatings among the figure, 2. concrete column, 3. cavity, 4. steel pipe column.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described in detail:

As shown in Figure 1, 2, this cross section is circular hollow steel tube concrete column, comprise outer layer pipe post 4, mainly be provided with in the inside of circular steel tubing string 4 by method moulding such as centrifugal, middle for cavity 3 and with the steel pipe column 4 inwalls circular concrete column 2 of all-in-one-piece of combining closely, external surface at steel pipe column 4 is provided with hot spraying allumen corrosion-inhibiting coating 1, also adds at the external surface of corrosion-inhibiting coating 1 to be coated with one deck confining bed.Steel pipe column 4 and with the steel pipe column 4 inwalls all-in-one-piece hollow concrete post 2 of combining closely, their cross section is circular, is the uniform section structure along the cross section on the column length direction, shaft has various connectors.

Shown in Fig. 3,4,5,6,7, these are respectively that cross section is the hollow steel tube concrete column of polygon, square, rectangle and ellipsoidal structure.

Claims

1, a kind of hollow steel tube concrete column comprises being made as outer field steel pipe column (4), it is characterized in that: in the middle of being provided with in steel pipe column (4) inside for cavity (3) and with steel pipe column (4) the inwall all-in-one-piece concrete column (2) of combining closely.

2, hollow steel tube concrete column according to claim 1 is characterized in that being provided with corrosion-inhibiting coating (1) at the external surface of steel pipe column (4).

3, hollow steel tube concrete column according to claim 1, it is characterized in that: said steel pipe column (4) and with steel pipe column (4) inwall combine closely all-in-one-piece, middle be that the concrete column (2) of cavity (3), their cross section are square or circle, polygon, rectangle, ellipse.

4, hollow steel tube concrete column according to claim 1, it is characterized in that: said steel pipe column (4) and with steel pipe column (4) inwall combine closely all-in-one-piece, middle be the concrete column (2) of cavity (3), they are uniform section or variable section structure along the cross section on the column length direction.