CN104929316B - A kind of cement concrete pillar and its construction method - Google Patents

Abstract

The invention discloses a kind of cement concrete pillar and its construction method, including at least 2 sections cement concrete pillar sections and the shell being wrapped on cement concrete pillar, cement concrete pillar sections includes at least 2 parallel and isometric steel pipes, filling concrete concrete in steel pipe；It is connected by transverse tube between the steel pipe, the upper and lower ends of cement concrete pillar sections are respectively welded upper flange plate and lower flange, are connected with lower flange by upper flange plate between cement concrete pillar sections.Effect of the invention is that knot has saved material, the weight of cement concrete pillar is also mitigated.Meanwhile, the mode connected using multistage cement concrete sections so that construction is convenient easily.

Description

A kind of cement concrete pillar and its construction method

Technical field

The present invention relates to road and bridge building trade, and in particular to a kind of cement concrete pillar and its construction method.

Background technology

Existing road and bridge building trade, the method for construction of cement concrete pillar are generally adopted by with reinforcing bar as bone Frame, is then equipped with supporting post mould casting cement concrete.

Publication No. CN103088964A discloses a kind of steel pipe foam cement concrete combination column and its construction method, Including a root post body, column body includes steel pipe, the foam cement concrete being cast in steel pipe, is arranged in outer wall of steel pipe On bar-mat reinforcement and outsourcing cement concrete layer, connected by ring flange and flange bellmouth between steel pipe, ring flange and flange Pad is placed between bellmouth, and wherein foam cement concrete can be using Fly ash foam cement concrete or haydite foamed cement Concrete.

The shortcoming of prior art is that own wt is too big, and expends substantial amounts of material.

Content of the invention

In order to overcome the deficiencies in the prior art, it is an object of the invention to proposing one kind own wt can be reduced and saves material The easy cement concrete pillar of material construction and its construction method.

For reaching the effect above, the concrete scheme of the present invention is as follows：

A kind of cement concrete pillar, including at least 2 sections cement concrete pillar sections, each cement concrete pillar sections Between joined end to end by ring flange, which it is critical only that：The cement concrete pillar sections includes to be welded on upper flange in parallel At least two steel pipes between disk and lower flange, filling concrete concrete in steel pipe, steel pipe two ends are evenly distributed on ring flange On circumference.

Constituted using cement concrete pillar sections, because of each section of cement concrete pillar weight less, alleviate construction Difficulty；Steel duct filling concrete concrete enhances the support strength of steel pipe, while drastically reduce the area cement concrete Material quantity.

Further, it is welded and fixed by transverse tube between the steel pipe, the shearing between steel pipe can be enhanced.

Further, between the upper flange plate of the adjacent cement concrete pillar sections and lower flange welding and Shell is surrounded by with outside screw bolt reinforcing, and cement concrete pillar sections.So that cement concrete pillar sections two ends are provided with method Blue disk causes the connection between cement concrete pillar sections convenient.

Preferably, the cement concrete pillar sections is welded with three steel pipes by the even circumferential distribution of ring flange.Three Root steel pipe is evenly distributed on formation Triangle-Profile on ring flange, can improve the stability of cement concrete pillar.

Further, three circular holes, the position of circular hole and the position of steel pipe are provided with the lower flange and upper flange plate Put corresponding, in circular hole, be provided with wire netting.

Its effect is that wire netting can strengthen the bonding strength of cement concrete so that each cement concrete pillar section The connection of section is more consolidated.

Preferably, the steel pipe is all circle with the cross section of ring flange, and its diameter ratio is 1:3, and steel pipe is near method The edge of blue disk.Its effect is to reduce the consumption of cement concrete while will not prop up cement concrete again with amplitude peak The bearing strength of post is impacted.

Preferably, the cement concrete pillar segmental length is 2 meters.Its effect is can be according to the need of actual conditions The cement concrete pillar of arbitrary height arbitrarily to be mixed into.

A kind of cement concrete props up column construction method, comprises the following steps：

(1) cement concrete pillar sections is made：

The two ends of N root steel pipe are respectively welded on upper flange plate and lower flange, steel pipe is parallel to be evenly distributed on flange On the circumference of disk, transverse tube reinforcement of weld used each other by two steel pipes that are connected；

(2) cement concrete pillar is made：

From the beginning of ground, erect and fixing first cement concrete pillar sections, and to the cement concrete pillar sections Filling cement concrete；

Fix on the upper flange plate of first cement concrete pillar sections under second cement concrete pillar sections Ring flange, therebetween first through bolt connection, then welds to flange plate edge, then to second cement concrete pillar section Section placing cement concrete, by that analogy, until the cement concrete for completing a cement concrete pillar sections topmost is filled Build；

(3) spary anti-corrosion material：Column outer wall is propped up to whole cement concrete carries out anti-corrosion material spary：

(4) shell is wrapped up：By ring flange outer, shell is wrapped up to whole cement concrete pillar.

The remarkable result of the present invention：Replace the reinforcing bar of prior art, and filling concrete concrete in steel pipe, steel with steel pipe Only fixed with transverse tube between pipe, knot has saved material, also mitigates the weight of cement concrete pillar.Meanwhile, using multistage cement The mode of concrete segment connection so that construction is convenient easily.

Description of the drawings

Fig. 1 is cement concrete corbeling layout drawing in the present invention；

Fig. 2 is the profile of line A-A along Fig. 1；

Fig. 3 is flange plate structure schematic diagram in the present invention；

Fig. 4 is construction method step figure of the present invention；

Specific embodiment

Specific embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1, Figure 2, Figure 3 shows, a kind of cement concrete pillar, including adjacent two sections of cement concrete pillars sections 9 With the circular housing 6 being wrapped on cement concrete pillar；The circular housing 6 is fixed along the edge of ring flange.Each section of cement The lower end of concrete pillar sections 9 is welded with lower flange 2a upper end and is welded with upper flange plate 2b, adjacent two sections of cement concretes Joined end to end by lower flange 2a and upper flange plate 2b between pillar sections 9.Between upper flange plate 2b and lower flange 2a first It is fixedly connected with bolt, then welds along the edge of upper flange plate 2b and lower flange 2a.

Cement concrete pillar sections 9 includes three round steel pipes 3, and steel pipe 3 is evenly distributed on the circumference of ring flange, is in Triangle disposition is distributed, and the upper and lower ends of steel pipe are respectively welded on upper flange plate 2b and lower flange 2a.The diameter of steel pipe 3 and method The diameter ratio of blue disk is 1:3, filling concrete concrete 5 in steel pipe.Fixed by 1 reinforcement of weld of transverse tube between steel pipe 3, transverse tube Both ends horizontal is welded on the outer wall of adjacent two steel pipe 3.9 length of cement concrete pillar sections is 2 meters.

Lower flange 2a and upper flange plate 2b is provided with three circular holes 7, and the position of circular hole 7 is corresponding with the position of steel pipe 3 Equally it is distributed in triangle disposition, on circular hole, is additionally provided with wire netting 8.

The construction method of above-mentioned cement concrete pillar is as shown in Figure 4：

(1) cement concrete pillar sections step is made：

The two ends of three steel pipes 3 are respectively welded at upper flange plate 2b and lower flange by the even circumferential of ring flange On 2a, the circular hole corresponding with the position of steel pipe on the ring flange, is provided with.Transverse tube reinforcement of weld used each other by steel pipe, horizontal Level is welded on the outer wall of adjacent two steel pipe 3 respectively at the two ends of pipe；

(2) cement concrete pillar is made：

From the beginning of ground, first cement concrete pillar sections is erect, and to the cement concrete pillar sections fill water Cement concrete；

Second cement concrete pillar sections is fixed on the upper flange plate 2b of first cement concrete pillar sections Lower flange 2a, first through bolt connection between upper flange plate 2b and lower flange 2a, then the edge of upper and lower two ring flange is entered Row welding, then to second cement concrete pillar sections placing cement concrete, by that analogy, until completing topmost one The cement concrete placing of cement concrete pillar sections；

(3) spary anti-corrosion material：Column outer wall is propped up to whole cement concrete carries out anti-corrosion material spary；

(4) shell is wrapped up：By ring flange outer, shell is wrapped up to whole cement concrete pillar.

Claims (6)

1. a kind of cement concrete pillar, including at least 2 sections cement concretes pillar sections (9), each cement concrete pillar section Joined end to end by ring flange between section (9), it is characterised in that：Described cement concrete pillar sections (9) include parallel welding At least two steel pipes (3) between upper flange plate (2a) and lower flange (2b), steel pipe (3) are interior filling concrete concrete (5), Steel pipe (3) two ends are uniformly distributed and are welded on ring flange circumference, are first fixed with bolt between upper flange plate 2b and lower flange 2a Connection, then welds along the edge of upper flange plate 2b and lower flange 2a, on lower flange (2b) and upper flange plate (2a) The circular hole (7) consistent with steel pipe (3) number is provided with, the position of circular hole (7) is corresponding with the position of steel pipe (3), in circular hole (7) It is provided with wire netting (8).

2. cement concrete pillar according to claim 1, it is characterised in that：Pass through transverse tube (1) between steel pipe (3) Reinforcement of weld.

3. cement concrete pillar according to claim 1, it is characterised in that：The adjacent cement concrete pillar sections (9) welding and with bolt (4) reinforcing between the upper flange plate (2a) and lower flange (2b), and cement concrete pillar section Shell (6) is surrounded by outside section (9).

4. cement concrete pillar according to claim 1, it is characterised in that：Steel pipe (3) are transversal with ring flange Face is all circle, and its diameter ratio is 1:3, and steel pipe (3) is near the edge of ring flange.

5. cement concrete pillar according to any one of claim 1 to 4, it is characterised in that：The cement concrete Pillar sections (9) length is 2 meters.

6. a kind of such as any one of claim 1 to 5 cement concrete props up column construction method, comprises the following steps：

(1) cement concrete pillar sections is made：

The two ends of N root steel pipe are respectively welded on upper flange plate and lower flange, steel pipe is parallel to be evenly distributed on ring flange On circumference, transverse tube reinforcement of weld used each other by two steel pipes that are connected；

(2) cement concrete pillar is made：

From the beginning of ground, erect and fixing first cement concrete pillar sections, and filling to the cement concrete pillar sections Cement concrete；

The lower flange of second cement concrete pillar sections is fixed on the upper flange plate of first cement concrete pillar sections Disk, therebetween first through bolt connection, then welds to flange plate edge, then fills to second cement concrete pillar sections Cement concrete is built, by that analogy, until completing the cement concrete placing of a cement concrete pillar sections topmost；

(3) spary anti-corrosion material：Column outer wall is propped up to whole cement concrete carries out anti-corrosion material spary：

(4) shell is wrapped up：By ring flange outer, shell is wrapped up to whole cement concrete pillar.