阅读说明：本技术 一种套环式frp连接件及其使用方法 (Ring-type FRP connecting piece and using method thereof ) 是由 李帼昌 李晓 于 2020-07-13 设计创作，主要内容包括：本发明公开一种套环式FRP连接件,包括FRP连接杆,所述FRP连接杆一端连接FRP套环,另一端连接有FRP端头；所述FRP套环套在内叶板双排钢筋上,并设置有螺旋肋；所述FRP连接杆为圆柱状或板状；所述FRP端头为FRP螺旋帽、FRP球状帽、FRP十字交叉杆帽其中任意一种形式；当所述FRP端头为FRP螺旋帽时,所述FRP连接杆与所述FRP端头活动连接；当FRP端头为FRP球状帽或FRP十字交叉杆帽时,所述FRP端头与所述连接杆固定连接。本发明还公开了一种套环式FRP连接件的使用方法。本发明结构简单、易于施工、价格低廉,并且易于制作；采用FRP材料,强度高、价格低廉、导热系数低其热桥影响较小,具有广阔的应用前景；安全性能高；且施工安装简洁方便,节省人力。(The invention discloses a lantern ring type FRP connecting piece which comprises an FRP connecting rod, wherein one end of the FRP connecting rod is connected with an FRP lantern ring, and the other end of the FRP connecting rod is connected with an FRP end socket; the FRP lantern ring is sleeved on the double rows of reinforcing steel bars of the inner blade plate and is provided with spiral ribs; the FRP connecting rod is cylindrical or plate-shaped; the FRP end is in any one form of an FRP spiral cap, an FRP spherical cap and an FRP cross rod cap; when the FRP end is an FRP spiral cap, the FRP connecting rod is movably connected with the FRP end; when the FRP end is an FRP spherical cap or an FRP cross rod cap, the FRP end is fixedly connected with the connecting rod. The invention also discloses a use method of the lantern ring type FRP connecting piece. The invention has simple structure, easy construction, low price and easy manufacture; the FRP material is adopted, so that the strength is high, the price is low, the thermal conductivity is low, the thermal bridge influence is small, and the application prospect is wide; the safety performance is high; and the construction and installation are simple and convenient, and the labor is saved.)

1. The lantern ring type FRP connecting piece is characterized by comprising an FRP connecting rod (2), wherein one end of the FRP connecting rod (2) is connected with an FRP lantern ring (1), and the other end of the FRP connecting rod is connected with an FRP end socket (3).

2. A collar type FRP connector as claimed in claim 1, wherein the FRP collar (1) is fitted over the inner blade double row reinforcing bars and provided with spiral ribs (11).

3. A collar-type FRP connector as claimed in claim 1, wherein the FRP connector rod (2) is cylindrical or plate-shaped.

4. A collar-type FRP connector as claimed in claim 1, wherein the FRP head (3) is in the form of any one of FRP screw cap (32), FRP ball cap (33), FRP cross bar cap (34).

5. The lantern ring type FRP connecting piece of claim 4, wherein when the FRP end head (3) is an FRP screw cap (32), the FRP connecting rod (2) is provided with an external thread (21), the FRP screw cap (32) is provided with an internal thread (31) matched with the external thread (21), and the FRP connecting rod (2) and the FRP screw cap (32) are movably connected through the external thread (21) and the internal thread (31); the FRP screw cap (32) comprises a gasket (321) and an FRP rod (322).

6. The lantern ring type FRP connecting piece as claimed in claim 4, wherein when the FRP end head (3) is the FRP spherical cap (33), the FRP connecting rod (2) is fixedly connected with the FRP spherical cap (33).

7. A thimble type FRP connecting member as claimed in claim 4, wherein when the FRP end head (3) is the FRP cross bar cap (34), the FRP connecting rod (2) is fixedly connected with the FRP cross bar cap (34).

8. The use method of the lantern ring type FRP connecting piece based on any one of claims 1 to 7 is characterized by comprising the following steps:

step 1, paving an inner blade plate template, and arranging a front reinforcing mesh and a rear reinforcing mesh of the inner blade plate;

step 2, sleeving FRP lantern rings of the FRP connecting pieces on longitudinal steel bars of front and rear steel bar meshes, and fixing the FRP lantern rings through binding wires;

step 3, pouring the inner blade plate concrete to a set height;

step 4, placing an insulation board on the inner leaf concrete slab, slightly pressing the insulation board, pressing a trace on the insulation board by utilizing the top of the FRP connecting rod, and then drilling a hole at the trace;

step 5, installing the heat insulation board through the drilled holes, and then sealing the hole joints between the FRP connecting rods and the heat insulation board by using polyurethane foam rubber;

step 6, laying a template of the outer blade plate, and arranging a reinforcing mesh;

and 7, pouring concrete and maintaining.

9. The use method of the lantern ring type FRP connecting piece according to claim 7, wherein when the FRP end is an FRP screw cap, in step 5, the FRP connecting rod firstly passes through the insulation board, then the FRP screw cap end is installed on the FRP connecting rod, a gasket on the FRP screw cap clamps the insulation board for fixing, and then the hole seam between the FRP connecting rod and the insulation board is sealed by polyurethane foam rubber.

10. The use method of the lantern ring type FRP connecting piece as claimed in claim 7, wherein when the FRP end is an FRP spherical cap or an FRP cross bar cap, in step 5, the FRP end and the FRP connecting bar directly pass through the insulation board, and then the hole seam between the FRP connecting bar and the insulation board is sealed by polyurethane foam rubber.

Technical Field

The invention relates to the technical field of buildings, in particular to a lantern ring type FRP connecting piece and a using method thereof.

Background

The connecting piece is used for connecting three parts of the prefabricated sandwich heat-insulation wall together, so that the stress performance of the prefabricated sandwich heat-insulation wall under the combination of multiple loads is considered, and the influence of the prefabricated sandwich heat-insulation wall on the heat-insulation performance, the durability and the fire resistance of the prefabricated sandwich heat-insulation wall is also considered in the using process. The common steel bar connecting piece has low manufacturing cost and convenient installation, but has high heat conductivity coefficient, and the corrosion resistance of the steel bar connecting piece is poorer, thus easily causing potential safety hazard of the wall body; the heat conductivity coefficient of the metal alloy connecting piece is 1/4-1/3 times of that of the common steel bar, the metal alloy connecting piece has strong corrosion resistance and is not easy to rust, but the price is 5-8 times of that of the common steel bar; the FRP connecting piece has the heat conductivity coefficient of 1.4W/(m DEG C), has small thermal bridge influence, low manufacturing cost and higher strength than common reinforcing steel bars, and has wide application prospect.

The bonding area and the connection form of the FRP connecting piece and the precast concrete sandwich heat-insulation composite wall body are not perfect enough, so that the anchoring performance is low.

Disclosure of Invention

In order to solve the problems, the invention provides the lantern ring type FRP connecting piece which is low in price, simple in structure, easy to construct and suitable for the precast concrete sandwich heat-insulation composite wall body, the anchoring performance of the connecting piece is higher, and the safety performance of the connecting piece is improved

The invention relates to a lantern ring type FRP connecting piece and a using method thereof, which are realized by the following technical scheme:

the lantern ring type FRP connecting piece comprises an FRP connecting rod, wherein one end of the FRP connecting rod is connected with an FRP lantern ring, and the other end of the FRP connecting rod is connected with an FRP end socket.

Furthermore, the FRP lantern ring is sleeved on the double rows of reinforcing steel bars of the inner blade plate and is provided with spiral ribs.

Further, the FRP connecting rod is cylindrical or plate-shaped.

Furthermore, the FRP end is in any form of an FRP spiral cap, an FRP spherical cap and an FRP cross rod cap.

Further, when the FRP end is an FRP screw cap, the FRP connecting rod is provided with an external thread, the FRP screw cap is provided with an internal thread matched with the external thread, and the FRP connecting rod is movably connected with the FRP screw cap through the external thread and the internal thread; the FRP screw cap comprises a gasket and an FRP rod; the FRP screw cap comprises a gasket and an FRP rod.

Further, when the FRP end is an FRP spherical cap, the FRP connecting rod is fixedly connected with the FRP spherical cap.

Further, when the FRP end is an FRP cross rod cap, the FRP connecting rod is fixedly connected with the FRP cross rod cap.

A use method of a lantern ring type FRP connecting piece comprises the following steps:

step 1, paving an inner blade plate template, and arranging a front reinforcing mesh and a rear reinforcing mesh of the inner blade plate;

step 2, sleeving FRP lantern rings of the FRP connecting pieces on longitudinal steel bars of front and rear steel bar meshes, and fixing the FRP lantern rings through binding wires;

step 3, pouring the inner blade plate concrete to a set height;

step 4, placing an insulation board on the inner leaf concrete slab, slightly pressing the insulation board, pressing a trace on the insulation board by utilizing the top of the FRP connecting rod, and then drilling a hole at the trace;

step 5, installing the heat insulation board through the drilled holes, and then sealing the hole joints between the FRP connecting rods and the heat insulation board by using polyurethane foam rubber;

step 6, laying a template of the outer blade plate, and arranging a reinforcing mesh;

and 7, pouring concrete and maintaining.

Further, when the FRP end is an FRP screw cap, in the step 5, the FRP connecting rod firstly passes through the insulation board, then the FRP screw cap end is installed on the FRP connecting rod, the insulation board is clamped by a gasket on the FRP screw cap for fixing, and then the pore seam between the FRP connecting rod and the insulation board is sealed by polyurethane foaming adhesive.

Further, when the FRP end is an FRP spherical cap or an FRP cross bar cap, in step 5, the FRP end and the FRP connecting rod directly penetrate through the insulation board, and then the hole seam between the FRP connecting rod and the insulation board is sealed by using polyurethane foam rubber.

Compared with the prior art, the invention has the following beneficial effects:

1) the invention has simple structure, easy construction, low price and easy manufacture;

2) the invention adopts FRP material, has high strength, low price, low heat conductivity coefficient and less thermal bridge influence, and has wide application prospect;

3) the lantern ring, the thread rib and the FRP rod on the screw cap increase the anchoring performance of the FRP connecting piece and concrete, and increase the safety performance of the FRP connecting piece and the concrete;

4) the FRP screw cap and the FRP connecting rod are divided into two parts, the FRP rod can easily pass through the insulation board, and the gasket is fixed on the FRP screw cap, so that the construction and installation are simple and convenient, and manpower is saved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

FIG. 1 is a schematic structural view of a screw-cap FRP connector according to embodiment 1 of the present invention;

FIG. 2 is a schematic view of a partial structure of a screw-cap FRP connecting member according to embodiment 1 of the present invention;

FIG. 3 is a schematic structural view of a spherical cap FRP connecting member according to embodiment 2 of the present invention;

FIG. 4 is a schematic structural view of a cross-bar hat FRP connecting member according to embodiment 3 of the present invention;

FIG. 5 is a structural view of a precast concrete sandwich thermal insulation wall in embodiment 4 of the present invention;

FIG. 6 is a schematic view showing the arrangement of FRP connecting members according to embodiment 4 of the invention;

FIG. 7 is a plan view of a precast concrete sandwich thermal insulation wall according to example 4 of the present invention;

wherein:

1-FRP lantern ring, 11-spiral rib;

2-FRP connecting rod, 21-external thread.

3-FRP end, 31-internal thread, 32-FRP screw cap, 321-gasket, 322-FRP rod, 33-FRP spherical cap and 34-FRP cross rod cap.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. The construction or operation of the invention not described in detail is well within the skill of the art and the common general knowledge in the art, and should be known to those skilled in the art.