H-shaped connecting piece suitable for reinforcing door steel structure

Abstract

The utility model relates to the technical field of structural reinforcing pieces, in particular to an H-shaped connecting piece suitable for reinforcing a door steel structure, which is characterized in that a steel flange plate is in bolted connection with a steel frame beam flange plate of a steel frame beam of an existing steel frame structure, and an inclined strut steel pipe is in bolted connection with the outer side of the steel frame beam flange plate at the joint. According to the welding-free connection node form of the newly-added inclined supporting rod, calculation, design and construction are carried out according to the specific conditions of each plant structure, the reinforcing materials and the construction cost are reduced to the maximum extent, and the economic yield is increased as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of structural reinforcement pieces, in particular to an H-shaped connecting piece suitable for reinforcing a door steel structure. Background Art

[0002] With the global energy shortage and the worsening environmental pollution, solar energy, an inexhaustible, pollution-free and energy-saving resource, has become popular among people all over the world. Due to the limited land resources, rooftop distributed photovoltaic power generation has become one of the mainstream photovoltaic power generation installation methods.

[0003] Among the existing steel structure factories, a large part of the factory buildings do not meet the load requirements of the newly added roof photovoltaic system. The main reasons are: the factory buildings were built earlier and the addition of photovoltaic systems was not considered at that time; in recent years, the requirements for relevant parameters of load calculation in the design specifications have been continuously improved.

[0004] For factories that do not meet the load requirements of the newly added roof photovoltaic system, if a photovoltaic system is to be added, it is necessary to reinforce the structure of each factory building according to its specific conditions to meet the requirements of the newly added load. In the modeling calculation of the portal frame structure factory building, it was found that when the strength of the steel frame beams and steel frame columns does not meet the requirements of the newly added load, the bearing capacity of the steel frame can be enhanced by adding diagonal braces at the corresponding positions; and the reinforcement method of adding diagonal braces has been widely adopted because of its simple construction and small material consumption. However, many factories currently have high fire protection requirements due to their uses, so welding construction cannot be used in the workshop.

[0005] To this end, the present application designs an H-shaped connector suitable for adding diagonal braces to portal frame structure factories, which can achieve welding-free connection to solve the above-mentioned problems. Summary of the invention

[0006] In order to make up for the deficiencies in the prior art, the utility model provides an H-shaped connecting piece suitable for reinforcing a door steel structure.

[0007] An H-shaped connector for a newly added diagonal brace in a portal frame structure factory building includes steel flange plates at both ends, and the steel flange plates at both ends of the H-shaped connector are connected to the flange plates of the steel frame beams (columns) of the existing steel frame structure to achieve the function of the connecting plates. In order to achieve a non-welded connection, blocking end plates must be used at both ends of the newly added diagonal brace steel pipes for factory building reinforcement.

[0008] The H-shaped connector also includes bolt holes on the steel flange plates at both ends, and bolt installation holes are reserved at corresponding positions on the flange plates. The bolt hole positions on the connector flange plates must be consistent with the bolt hole positions on the existing steel beam (column) flanges and the bolt hole positions on the newly added diagonal brace blocking end plates to achieve bolt connection during installation.

[0009] The H-shaped connector also includes a stiffening rib web in the middle. The two ends of the stiffening rib web are connected in the middle of the flange plate and are welded to the flange before entering the site. The web acts as a stiffening plate to bear the local bending stress of the existing steel beam (column).

[0010] The H-shaped connector also includes high-strength bolts for connecting components. The high-strength bolts are used to connect the blocking end plates at both ends of the diagonal bracing steel pipe, the steel frame beam (column) and the stiffening rib H-shaped structure during installation.

[0011] The beneficial effects of the utility model are:

[0012] 1. The H-shaped connector of the newly added diagonal brace of the portal frame structure factory building of the utility model adopts the same type of carbon steel material as the original structure, and the strength can meet the model calculation and actual engineering requirements.

[0013] 2. The H-shaped connectors of the newly added diagonal braces of the portal frame structure factory building of the utility model are calculated, designed and constructed according to the specific conditions of each factory building structure. The size and thickness of the newly added components can be selected as small as possible according to the situation, saving material costs and maximizing the economic rate of return.

[0014] 3. The H-shaped connectors of the newly added diagonal braces of the portal frame structure factory of the utility model are measured in detail before construction, and the newly added components are laid out and made off-site according to the measured data; after the construction is started, there is no hot work such as welding, and all high-strength bolts are used for connection construction. This greatly increases the number of construction scenarios of this form, and the construction is convenient, saving construction costs and improving economic benefits.

[0015] 4. The H-shaped connector of the newly added diagonal brace rod in the portal frame structure factory building of the utility model is mainly based on adding diagonal braces to change the stress of the original portal frame structure to improve the bearing capacity of the portal steel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the H-shaped connector of the utility model;

[0017] Figure 2 This is a diagram showing the position of the H-shaped connector of the utility model in the node;

[0018] Figure 3 for Figure 2 AA section view;

[0019] Figure 4 for Figure 2 BB cross-section diagram.

[0020] In the figure,

[0021] 1. Steel flange plate, 2. Stiffening rib web, 3. Bolt hole, 4. Diagonal bracing steel pipe, 5. Blocking end plate, 6. High-strength bolts, 7. Steel frame beam, 8. Steel frame beam flange plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0024] Figure 1-Figure 4 This is a specific embodiment of the utility model, which is an H-shaped connector suitable for reinforcing a door steel structure. A steel flange plate 1 is bolted to a steel frame beam flange plate 8 of a steel frame beam 7 of an existing steel frame structure, and a diagonal brace steel pipe 4 is bolted to the outer side of the steel frame beam flange plate 8 at the connection. Bolt holes 3 are opened on the steel flange plate 1, and bolt holes are also opened at corresponding positions on the steel frame beam flange plate 8 of the steel frame beam 7 of the existing steel frame structure. After the bolt holes of the two are aligned, they are fixedly connected by high-strength bolts 6. The two ends of the diagonal brace steel pipe 4 are blocked by a blocking end plate 5, and bolt holes are also opened at positions corresponding to the bolt holes 3 of the steel flange plate 1 on the blocking end plate 5. The blocking end plate 5 is fixedly connected to the outer side of the steel frame beam flange plate 8 by high-strength bolts 6. The H-shaped connector also includes a middle stiffening rib web 2, and the two ends of the stiffening rib web 2 are welded in the middle of the steel flange plate 1 to bear the local bending stress of the steel frame beam 7 of the existing steel frame structure.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. An H-shaped connector suitable for reinforcing a door steel structure, comprising steel flange plates (1) at both ends, characterized in that: The steel flange plate (1) is bolted to a steel frame beam flange plate (8) of a steel frame beam (7) of an existing steel frame structure, and a diagonal bracing steel pipe (4) is bolted to the outer side of the steel frame beam flange plate (8) at the connection.

2. The H-shaped connector suitable for reinforcing a door steel structure according to claim 1, characterized in that: The steel flange plate (1) is provided with bolt holes (3), and bolt holes are also provided at corresponding positions on the steel frame beam flange plate (8) of the steel frame beam (7) of the existing steel frame structure. The bolt holes of the two are aligned and fixedly connected by high-strength bolts (6).

3. The H-shaped connector suitable for reinforcing a door steel structure according to claim 1, characterized in that: Both ends of the diagonal bracing steel pipe (4) are sealed with sealing end plates (5), bolt holes are also provided on the sealing end plates (5) at positions corresponding to the bolt holes (3) of the steel flange plates (1), and the sealing end plates (5) are fixedly connected to the outer sides of the steel frame beam flange plates (8) by high-strength bolts (6).

4. The H-shaped connector suitable for reinforcing a door steel structure according to claim 1, characterized in that: The H-shaped connector also includes a middle stiffening rib web (2), with both ends of the stiffening rib web (2) welded in the middle of the steel flange plate (1) to bear the local bending stress of the steel frame beam (7) of the existing steel frame structure.

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