CN201598776U

CN201598776U - FRP pipe sea sand concrete column

Info

Publication number: CN201598776U
Application number: CN2010200562152U
Authority: CN
Inventors: 査晓雄; 王晓璐; 仓友清
Original assignee: Shenzhen Graduate School Harbin Institute of Technology
Current assignee: Shenzhen Graduate School Harbin Institute of Technology
Priority date: 2010-01-06
Filing date: 2010-01-06
Publication date: 2010-10-06
Anticipated expiration: 2020-01-06

Abstract

The utility model provides an FRP pipe sea sand concrete column comprising sea sand concrete, an FRP pipe, a grate and cement-sand mortar. The FRP pipe sea sand concrete column has the benefits that firstly, the concrete column directly uses sea sand without the treatment to substitute a conventional steel reinforced rib/steel pipe concrete column element; secondly, the FRP pipe of the structure is externally provided with the grate and is sprayed with the cement sand mortar, thereby overcoming the defect of poor fire resistance; thirdly, the FRP pipe has restriction function on the concrete, which can improve the compression strength of internal concrete; fourthly, the structure has good durability, not only can be used in building structures, but also can be used in hydro-structures of high corrosiveness; and finally, the FRP pipe is adopted as the template poured by sea sand concrete, thereby simplifying the construction technology and improving the construction speed.

Description

FRP pipe marine sand concrete post

Technical field

The utility model relates to the building concrete post, particularly a kind of FRP pipe marine sand concrete post.

Background technology

Along with the develop rapidly of large-scale economic construction and building trade, at present, building sand is shortage day by day.For the resourceful coastal area of extra large sand, seeking upcountry and getting the sand source is one of approach, but freight charges are high and the infringement riverbed, if use extra large sand then can gather materials on the spot, and also cheap.But extra large sand includes sea salt, can cause heavy corrosion and cause building structure to destroy reinforcing bar in the concrete.

The utility model content

In order to solve existing technical problem, the utility model provides the FRP pipe concrete column of the extra large sand of a kind of direct use, and this member corrosion resistance, fire line, supporting capacity, construction technology all improve.

The utility model solves existing technical problem, and a kind of FRP pipe marine sand concrete post is provided, and this marine sand concrete post comprises marine sand concrete, FRP pipe, grid and the cement mortar of order setting from the inside to the outside.

The utility model further improves:

This FRP pipe marine sand concrete post is a solid construction, and marine sand concrete is filled in the hollow region of FRP pipe.

This FRP pipe marine sand concrete post is a hollow-core construction, and FRP pipe in center is set within it, and marine sand concrete is filled in the zone line of inside and outside two-layer FRP pipe.

This FRP pipe marine sand concrete post is provided with the FRP stiffening rib to increase structural mechanical property according to the actual loading situation in the FRP pipe.

This FRP pipe marine sand concrete post is provided with the FRP grid outside the FRP pipe, shotcrete on grid is to improve the fireproof performance of member.

Compared to prior art, the beneficial effects of the utility model are: at first, this concrete structure does not need extra large sand is handled, and directly uses to substitute traditional reinforcing bar/encased structures; Secondly, this structure FRP manages peripheral hardware grid spraying cement mortar, has overcome the shortcoming of FRP fire resistance difference; Once more, the FRP pipe can improve inner concrete compressive strength to concrete effect of contraction; And this structure durability can be good, not only can be used for building structure, more can be used in the big hydro-structure of corrosivity.

Description of drawings

Fig. 1 is the solid FRP pipe of a utility model marine sand concrete post schematic diagram;

Fig. 2 is the solid FRP square tube of a utility model marine sand concrete post schematic diagram;

Fig. 3 is the hollow FRP pipe of a utility model marine sand concrete post schematic diagram;

Fig. 4 is the hollow FRP square tube of a utility model marine sand concrete post schematic diagram.

The specific embodiment

Below in conjunction with the description of drawings and the specific embodiment the utility model is further specified.

As shown in Figures 1 to 4, a kind of FRP pipe marine sand concrete post, this FRP pipe marine sand concrete post comprises marine sand concrete 11, FRP pipe 12, grid 13 and the cement mortar 14 of order setting from the inside to the outside.This marine sand concrete 11 directly selects for use extra large sand as fines, need not to carry out preliminary treatment such as fresh water desalination, interpolation corrosion inhibiter, help the building construction of extra large sand repository, on the whole, alleviated the exploitation pressure of land sand, river sand resource greatly, solved the expensive problem that land sand, the long-range exploitation transportation of river sand cause,, helped ecological, environmental protective again so directly utilize extra large sand promptly to have economic benefit.

This FRP pipe marine sand concrete post is a solid construction, as depicted in figs. 1 and 2, is FRP pipe marine sand concrete solid post,, marine sand concrete 11 is filled in the hollow region of FRP pipe 12.Simultaneously, this FRP pipe marine sand concrete post also can be hollow-core construction, as shown in Figure 3 and Figure 4, also comprises center FRP pipe 15 this moment, and marine sand concrete 11 is filled in the zone between center FRP pipe 15 and the peripheral FRP pipe 12.

The grid 13 of this marine sand concrete post is sheathed and stick on the outside of FRP pipe 12, at last cement mortar 14 is injected in the outside of grid 13, and shotcrete is to increase the fire resistance of member.Wherein, grid 13 is preferably the FRP material.The FRP pipe is preferably pipe or square tube, and in the FRP pipe FRP stiffening rib can be set, and this stiffening rib and FRP pipe are structure as a whole, and be directly one-body molded when prefabricated,

The utility model, at first, this concrete structure does not need extra large sand is handled, and directly uses to substitute traditional reinforcing bar/encased structures; Secondly, this structure FRP manages peripheral hardware grid spraying cement mortar, has overcome the shortcoming of FRP fire resistance difference; Once more, the FRP pipe can improve inner concrete compressive strength to concrete effect of contraction; And this structure durability can be good, not only can be used for building structure, more can be used in the big hydro-structure of corrosivity; At last, adopt the template of FRP pipe, simplify construction technology, improve speed of application as the marine sand concrete cast.This structure applications is in building structure, bridge construction and offshore engineering.

Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims

1.FRP pipe marine sand concrete post is characterized in that: this FRP pipe marine sand concrete post comprises marine sand concrete, FRP pipe, grid and the cement mortar of order setting from the inside to the outside.

2. FRP pipe marine sand concrete post according to claim 1, it is characterized in that: this marine sand concrete post is a solid construction, and described marine sand concrete is filled in the hollow region of described FRP pipe.

3. FRP pipe marine sand concrete post according to claim 1, it is characterized in that: this marine sand concrete post is a hollow-core construction, center FRP pipe is established at the post center in addition, and described center FRP pipe is dissolved in the described FRP pipe, and marine sand concrete is filled in the zone between center FRP pipe and the FRP pipe.

4. according to any described FRP pipe marine sand concrete post of claim 1 to 3, it is characterized in that: described FRP pipe is pipe or square tube.

5. according to any described FRP pipe marine sand concrete post of claim 1 to 3, it is characterized in that: described FRP manages an inside side and is provided with the FRP stiffening rib.

6. reinforced marine sand concrete post member according to claim 5 is characterized in that: described FRP stiffening rib and described FRP pipe are structure as a whole.

7. FRP pipe marine sand concrete post according to claim 3, it is characterized in that: described FRP grid is sheathed on outside the FRP pipe of described center.

8. FRP pipe marine sand concrete post according to claim 7, it is characterized in that: cement mortar is sprayed the outside in grid.