CN210316662U

CN210316662U - Reinforced (rfd) assembled package steel construction of roof truss

Info

Publication number: CN210316662U
Application number: CN201920742301.XU
Authority: CN
Inventors: 陈磊; 黄坤耀; 陈立文
Original assignee: Yanggu Engineering Technology Shanghai Co ltd
Current assignee: Yanggu Engineering Technology Shanghai Co ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-04-14
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses an assembly type steel-clad structure for roof truss reinforcement, which is characterized in that a reinforcement structure is additionally arranged on the surface of a rod piece forming the roof truss, and comprises an upper chord reinforcement, a lower chord reinforcement, a web member reinforcement and a node reinforcement; the upper chord member reinforcement and the lower chord member reinforcement are connected by bolts through outer sleeve type flat hoops, and adhesives are coated when the outer sleeve type flat hoops are connected with the rod members; the web member is reinforced by flat steel; and the node is reinforced by decomposing the steel clad aiming at the roof truss node into a plurality of formed steel sleeves, and then connecting the formed steel sleeves into a whole through bolts and bonding the formed steel sleeves. The utility model discloses use outer sleeve type band hoop and adopt bolted connection, have convenient operation, safe and reliable's advantage.

Description

Reinforced (rfd) assembled package steel construction of roof truss

Technical Field

The utility model relates to a factory building constructional engineering technical field, concretely relates to reinforcement of old factory building roof truss.

Background

Conventional steelwork is widely used for reinforcing concrete members in roof trusses, including chord and web members in pure concrete roof trusses, and concrete upper chord reinforcement in composite roof trusses. The roof truss member is characterized in that the cross section of the member is small in size, and the structure of the connecting node is mostly a special-shaped structure. In the conventional steel-clad technology, angle steel and a flat hoop steel plate are often assembled by welding, and then glue is injected and adhered to a gap between the inner surface of the steel plate and a base surface of a component, so that the outer clad steel and the reinforced component can play a role together. However, for small components such as roof trusses, because the sizes of all steel-clad reinforced accessories are very small, the components need to be assembled through a large number of welding, the construction is complicated, and the construction quality is difficult to guarantee; and because each reinforcing steel bar is slender, the compactness of glue injection in the internal clearance is difficult to guarantee, so that the reinforcing effect cannot achieve the expected purpose.

Disclosure of Invention

The utility model aims at overcoming prior art's old factory building roof truss reinforcement and need be through a large amount of welding equipment then injecting glue, have the defect that construction quality is difficult to guarantee, provide one kind and avoid on-the-spot a large amount of welding, reduce the injecting glue operation by a wide margin, the construction is more simple and convenient, the reinforced structure that construction quality also guaranteed more easily.

The purpose of the utility model is realized through the following technical scheme.

An assembled steel-clad structure for roof truss reinforcement is characterized in that a reinforcement structure is additionally arranged on the surface of a rod piece forming a roof truss, and comprises upper chord reinforcement, lower chord reinforcement, web member reinforcement and node reinforcement; the upper chord member reinforcement and the lower chord member reinforcement are connected by bolts through outer sleeve type flat hoops, and adhesives are coated when the outer sleeve type flat hoops are connected with the rod members; the web member is reinforced by flat steel; and the node is reinforced by decomposing the steel clad aiming at the roof truss node into a plurality of formed steel sleeves, and then connecting the formed steel sleeves into a whole through bolts and bonding the formed steel sleeves. The bonding is realized by gluing the parts instead of injecting glue into the gap, so that the glue injection difficulty does not exist. The straps are also referred to as hoops.

The upper chord is reinforced by a T-shaped structure, and the structure adopts a T-shaped outer sleeve type flat hoop matched with the upper chord and is connected and fastened by bolts.

The upper chord is reinforced by a rectangular structure, and the structure adopts a rectangular outer sleeve type flat hoop matched with the upper chord and is connected and fastened by bolts.

In the preferred embodiment, the web member is reinforced by connecting two corresponding side surfaces of the web member having a rectangular cross section with each other by using an adhesive.

The utility model has the advantages that:

1. the outer sleeve type flat hoop is adopted and connected by the bolt, so that the operation is very convenient;

2. coating adhesive on the outer sleeve type flat hoop and the rod piece when the outer sleeve type flat hoop and the rod piece are connected; the web member is reinforced by flat steel and glue injection is replaced by viscose glue, so that the compactness of adhesion is ensured;

3. the process is simplified, and the strength of the reinforced connection meets the design requirement;

4. the field welding is avoided, and the accident caused by the original structure stress unbalance is prevented;

5. can meet the requirements of roof trusses with various structures.

Drawings

FIG. 1 is a schematic view of a reinforced concrete composite roof truss reinforcement elevation of the present invention;

FIG. 2 is a schematic view of a reinforced vertical surface of a steel bar and concrete combined roof truss;

FIG. 3 is a schematic view of a reinforced vertical surface of another steel bar and concrete combined roof truss;

FIG. 4 is a schematic illustration of T-shaped upper chord reinforcement;

FIG. 5 is a schematic view of a T-shaped upper chord reinforced externally sleeved band hoop;

FIG. 6 is a schematic illustration of rectangular upper chord reinforcement;

FIG. 7 is a schematic view of a rectangular upper chord reinforced externally sleeved band hoop structure;

FIG. 8 is a schematic illustration of a rectangular lower chord reinforcement;

FIG. 9 is a schematic view of another rectangular lower chord reinforcement;

figure 10 is a schematic illustration of a tension web reinforcement.

In the figure, a roof truss 1; a rod member 2; upper chord reinforcement 3; a T-shaped structure 31; a T-shaped jacket band 32; a bolt through hole 33; reinforcing ribs 34; a rectangular structure 35; a rectangular outer jacket band 36; reinforcing the lower chord 4; a reinforcing steel plate 41; the rectangular lower chord is used for reinforcing the hoop 42; web member reinforcement 5; node reinforcement 6; a bolt 7; and 8, flat steel.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Example 1: as shown in fig. 1, in an assembly type steel-clad structure for roof truss reinforcement, a reinforcement structure is additionally arranged on the surface of a rod 2 forming a roof truss 1, and comprises an upper chord reinforcement 3, a lower chord reinforcement 4, a web member reinforcement 5 and a node reinforcement 6; the upper chord reinforcement 3 and the lower chord reinforcement 4 are connected by using an outer sleeve type flat hoop and bolts 7, and adhesives are coated when the outer sleeve type flat hoop is connected with the rod piece 2; the web member reinforcement 5 is pasted by flat steel 8; the node reinforcement 6 is formed by decomposing the steel clad aiming at the node of the roof truss 1 into a plurality of formed steel sleeves, and connecting the formed steel sleeves into a whole through bolts and bonding the formed steel sleeves.

Fig. 2 and 3 are schematic elevation views of another reinforcing structure of a combined roof truss.

Fig. 4 shows a structure of an upper chord reinforcement 3, which is an upper chord reinforcement with a cross section of a T-shaped structure 31, the structure adopts a T-shaped outer sleeve type band hoop 32 matched with the upper chord and is connected and fastened by a bolt 7, the T-shaped outer sleeve type band hoop 32 comprises a lower hoop and an upper cover plate, a bolt through hole 33 is preset at the joint of the lower hoop and the upper cover plate, and reinforcing ribs 34 are added on two side wings (fig. 5).

Example 2: fig. 6 is another upper chord reinforcing structure, which is an upper chord reinforcing structure with a rectangular cross section 35, and the structure adopts a rectangular outer sleeve type flat hoop 36 matched with the upper chord and is connected and fastened by bolts 7, the rectangular outer sleeve type flat hoop 36 also comprises a lower anchor ear and an upper cover plate (fig. 7), and the rest structures are the same as those of the embodiment 1.

Example 3: fig. 8 shows a lower chord reinforcement 4 structure, which is adhesively connected to the lower side of the lower chord by a reinforcement steel plate 41. The rest of the structure is the same as that of example 1.

Example 4: fig. 9 shows another lower chord reinforcing structure, which employs a rectangular lower chord reinforcing hoop 42 to be sleeved on the outer side surface of the lower chord and bonded. The rest of the structure is the same as that of example 1.

Example 5: fig. 10 shows a web member reinforcement 5, in which two corresponding side surfaces of a web member having a rectangular cross section are connected by an adhesive by using a flat steel 8. The rest of the structure is the same as that of example 1.

The utility model discloses use outer sleeve type band hoop and adopt bolted connection, have convenient operation, safe and reliable's advantage. The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An assembled steel-clad structure for roof truss reinforcement is characterized in that a reinforcement structure is additionally arranged on the surface of a rod piece forming a roof truss, and comprises upper chord reinforcement, lower chord reinforcement, web member reinforcement and node reinforcement; the upper chord member reinforcement and the lower chord member reinforcement are connected by bolts through outer sleeve type flat hoops, and adhesives are coated when the outer sleeve type flat hoops are connected with the rod members; the web member is reinforced by flat steel; and the node is reinforced by decomposing the steel clad aiming at the roof truss node into a plurality of formed steel sleeves, and then connecting the formed steel sleeves into a whole through bolts and bonding the formed steel sleeves.

2. The fabricated steel-clad structure for roof truss reinforcement as recited in claim 1, wherein said upper chord reinforcement is an upper chord reinforcement having a T-shaped cross-section, and said upper chord reinforcement is fastened by a T-shaped jacket band adapted to said upper chord and fastened by bolting.

3. The fabricated steel-clad structure for roof truss reinforcement as recited in claim 1, wherein said upper chord reinforcement is an upper chord reinforcement having a rectangular cross-section, and said upper chord reinforcement is fastened by bolting using rectangular collar-type flat hoops adapted to said upper chord.

4. A fabricated steel-clad structure for roof truss reinforcement as claimed in claim 1, 2 or 3, wherein said web member reinforcement is made of flat steel for each of the opposite side surfaces of the web member having a rectangular cross section and is bonded thereto by an adhesive.