CN201649438U

CN201649438U - FRP sea sand concrete beam slab

Info

Publication number: CN201649438U
Application number: CN2010292160688U
Authority: CN
Inventors: 查晓雄; 王晓璐; 王海洋; 仓友清
Original assignee: Shenzhen Graduate School Harbin Institute of Technology
Current assignee: Shenzhen Graduate School Harbin Institute of Technology
Priority date: 2010-02-02
Filing date: 2010-02-02
Publication date: 2010-11-24
Anticipated expiration: 2020-02-02

Abstract

The utility model provides a FRP sea sand concrete beam slab. The sea sand concrete beam slab comprises a FRP beam arranged flatly and sea sand concrete on the FRP beam, wherein a shear connector is arranged on one side of the FRP beam which faces towards the sea sand concrete. The concrete beam slab of the utility model permits the direct use of sea sand in replacing traditional steel bar/steel pipe concrete structures without pretreatment of the sea sand. Further, the concrete beam slab of the utility model has a rational bearing design, bringing into full play of the high tensile strength mechanical property of FRP materials. Furthermore, the FRP beam slab is characterized by excellent corrosion resistance capability, which can prevent corrosion from chlorine ion in sea sand concrete. Finally, an FRP beam serves as a template for sea sand concrete pouring, thereby simplifying construction technique and improving construction speed.

Description

FRP section bar marine sand concrete beams and slabs

Technical field

The utility model relates to the building concrete structure, particularly a kind of FRP section bar marine sand concrete beams and slabs.

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 a kind of FRP section bar marine sand concrete beams and slabs, and it directly uses extra large sand, can substitute existing land sand or river sand reinforcing bar/concrete filled steel tube board member.

The utility model solves existing technical problem, and a kind of FRP section bar marine sand concrete beams and slabs is provided, and this marine sand concrete beams and slabs comprises the flat FRP plate of establishing and places marine sand concrete on the described FRP plate; Towards a side of described marine sand concrete shear connector is set at described FRP plate.

The utility model further improves:

Described FRP plate is for being horizontally disposed with.

Described shear connector is a T shape FRP connector.

Described shear connector is bonded on the described FRP plate.

Described FRP plate is the U-shaped plate, the described marine sand concrete of perfusion in it.

Described marine sand concrete integral body is T-shaped, establishes the vertical muscle of many FRP in the top of this T shape.

Described FRP plate is a corrugated sheet, the described marine sand concrete of cast on it.

This marine sand concrete beams and slabs comprises the FRP beam, and this FRP beam links to each other with described corrugated sheet.

Described FRP beam is the FRP section bar.

The cross section of described FRP section bar is I-shaped.

Compared to prior art, the beneficial effects of the utility model are: at first, this concrete slab member does not need extra large sand is handled, and directly uses to substitute traditional reinforcing bar/encased structures; Secondly, this member designs form is stressed rationally, can must bring into play the high-tensile mechanical property of FRP material to greatest extent; Once more, this member FRP has good anti-corrosion, can resist the corrosion of chlorion in the marine sand concrete.At last, adopt the template of FRP plate, simplify construction technology, improve speed of application as the marine sand concrete cast.

Description of drawings

Fig. 1 is the utility model FRP section bar marine sand concrete beams and slabs one schematic diagram;

Fig. 2 is the another schematic diagram of this marine sand concrete beams and slabs.

The specific embodiment

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

As depicted in figs. 1 and 2, a kind of FRP section bar marine sand concrete beams and slabs, it can be used as the beam and the floor slab structure of building, and this marine sand concrete beams and slabs comprises the flat FRP plate of establishing 11 and places marine sand concrete 12 on the FRP plate 11; In order to improve the shearing resistance intensity of member, towards a side of marine sand concrete 12 shear connector 13 is set at FRP plate 11.

FRP section bar marine sand concrete 12 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 being extensive use of of extra large sand, help the building construction of extra large sand repository, on the whole, alleviate 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, so directly utilize extra large sand promptly to have economic benefit, help ecological, environmental protective again.

FRP plate 11 preferred levels settings of the present utility model because great majority building crossbeam adopts are horizontally disposed with, and simultaneously, FRP plate of the present utility model also can tiltedly be established, and needs this moment to decide according to concrete mode of occupation.FRP plate 11 is positioned at the below, marine sand concrete 12 is positioned at the top, and both are closely linked, to satisfy the demand of building to beam and floor.

In the utility model, shear connector 13 is preferably T shape FRP connector, is connected on the FRP plate 11 through epoxy resin.This T shape FRP connector preferably upwards is arranged on the FRP plate 11, to solve the shearing force of FRP plate vertical direction.

In the utility model, the marine sand concrete specific embodiment has two:

Embodiment one: as shown in Figure 1, this FRP outsourcing marine sand concrete beam comprises the marine sand concrete 12 on U type FRP plate 11 and perfusion and the FRP plate 11, and this form of structure can must be brought into play the high-tensile mechanical property of FRP material to greatest extent; In order to improve member globality shear resistance, shear connector 13 is set in FRP plate 11 inboards.Can arrange in this outer-enwraped type marine sand concrete beam that the FRP muscle is to improve the intensity of member.

Embodiment two: as shown in Figure 2, this FRP section bar marine sand concrete beam adopts the FRP section bar as built-in muscle skeleton, the stress performance of strengthened beam; Can adopt and shear connector is set to increase the globality of FRP and marine sand concrete; The FRP section bar is in the marine sand concrete centre position, and the loss of strength under the fire is less.

The utility model with the prefabricated back of outsourcing U-shaped plate and corrugated sheet as template, during construction directly within it, its upper pouring marine sand concrete forms, and is rational in infrastructure, can bring into play the high-tensile mechanical property of FRP material to greatest extent; Secondly, FRP has good anti-corrosion, can resist the corrosion of chlorion in the marine sand concrete; Once more, FRP can simplify construction technology as the template of marine sand concrete cast, improves speed of application; At last, on the FRP plate, use epoxy resin to paste the shearing resistance connector, to increase the frictional force between FRP precast plate and the marine sand concrete.

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 section bar marine sand concrete beams and slabs is characterized in that: this marine sand concrete beams and slabs comprises the flat FRP plate of establishing and places marine sand concrete on the described FRP plate; Towards a side of described marine sand concrete shear connector is set at described FRP plate.

2. FRP section bar marine sand concrete beams and slabs according to claim 1, it is characterized in that: described FRP plate is for being horizontally disposed with.

3. FRP section bar marine sand concrete beams and slabs according to claim 1 and 2 is characterized in that: described shear connector is a T shape FRP connector.

4. FRP section bar marine sand concrete beams and slabs according to claim 3, it is characterized in that: described shear connector is bonded on the described FRP plate.

5. FRP section bar marine sand concrete beams and slabs according to claim 3, it is characterized in that: described FRP plate is the U-shaped plate, the described marine sand concrete of perfusion in it.

6. FRP section bar marine sand concrete beams and slabs according to claim 5, it is characterized in that: described marine sand concrete integral body is T-shaped, establishes the vertical muscle of many FRP in the top of this T shape.

7. FRP section bar marine sand concrete beams and slabs according to claim 3, it is characterized in that: described FRP plate is a corrugated sheet, the described marine sand concrete of cast on it.

8. FRP section bar marine sand concrete beams and slabs according to claim 7, it is characterized in that: this marine sand concrete beams and slabs comprises the FRP beam, this FRP beam links to each other with described corrugated sheet.

9. FRP section bar marine sand concrete beams and slabs according to claim 8, it is characterized in that: described FRP beam is the FRP section bar.

10. FRP section bar marine sand concrete beams and slabs according to claim 9, it is characterized in that: the cross section of described FRP section bar is I-shaped.