A roof reinforcing system for adding photovoltaic to an old factory building

Abstract

The utility model relates to an old factory building roof reinforcing system for installing photovoltaic on an old factory building, comprising an old factory building steel structure, wherein the old factory building steel structure comprises existing side columns, existing middle columns, existing side longitudinal beams, existing middle longitudinal beams, existing cross beams and existing roof trusses; a framework unit is formed by one pair of existing side columns, one existing middle column and one pair of existing side longitudinal beams; the framework unit further comprises at least one reinforcing unit arranged between two adjacent framework units and a reinforcing longitudinal beam fixedly installed on the top surface or the bottom surface of the existing middle longitudinal beam; the two ends of the reinforcing longitudinal beam are connected to the corresponding existing middle columns; and the reinforcing unit comprises a reinforcing column, a reinforcing beam and a reinforcing plate.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic reinforcement technology for old factory buildings, and in particular to a roof reinforcement system for adding photovoltaics to old factory buildings. Background Technology

[0002] Photovoltaic power stations are classified into centralized and distributed types. Distributed photovoltaic power stations have developed rapidly in recent years due to their convenient grid connection and flexible site selection. More and more industrial and commercial factory rooftops are starting to install distributed photovoltaic power stations.

[0003] However, the biggest problem facing the installation of photovoltaic power stations on the roofs of old factory buildings is the structural safety of the factory buildings. Because the original design of the old factory buildings did not take into account the photovoltaic load, the structural integrity of the factory buildings (mainly the existing roof steel beams and purlins) is insufficient, necessitating the reinforcement of the factory buildings.

[0004] Existing Chinese patent application CN103233587A discloses a device and its implementation method for reinforcing and installing photovoltaic panels on a steel structure factory building. This device involves reinstalling a supporting column structure (pile foundation and frame) outside the existing frame columns (supporting columns). Then, steel cables are installed between the tops of corresponding two supporting column structures, and multiple strut structures (struts and tension adjustment devices, etc.) are installed on the steel cables to support the existing steel beams (roof steel beams), thus achieving structural reinforcement of the old factory building. However, this device cannot effectively address the problem of insufficient load-bearing capacity of the purlins for photovoltaic installation (because the number of purlins is several times that of the roof steel beams, increasing the amount of reinforcement work required by this device).

[0005] To address this, we designed a roof reinforcement system for photovoltaic installation in old factory buildings that strengthens the roof beams by distributing the force exerted by the purlins on the roof steel beams, ensuring that the roof steel beams are not overloaded. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model discloses a roof reinforcement system for adding photovoltaics to old factory buildings.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A roof reinforcement system for adding photovoltaics to an old factory building includes a steel structure of the old factory building. The steel structure comprises existing side columns, an existing central column, existing side longitudinal beams, an existing central longitudinal beam, existing crossbeams, and existing purlins, forming a frame unit consisting of a pair of existing side columns, an existing central column, and a pair of existing side longitudinal beams. The system is characterized by further including at least one reinforcement unit located in two adjacent frame units and a reinforcement longitudinal beam fixedly installed on the top or bottom surface of the existing central longitudinal beam. The two ends of the reinforcement longitudinal beam are connected to the corresponding existing central column. The reinforcement unit includes: Reinforce the side columns by placing them between two adjacent existing side columns on the same side; The reinforcing support is fixedly installed on the top surface of the reinforcing longitudinal beam or the existing middle longitudinal beam; The reinforcing beam is fixedly installed at both ends to the top of the reinforcing side column and the reinforcing support column, respectively, to support the corresponding existing purlins.

[0008] Furthermore, a reinforcing U-shaped rod is provided at the top of the reinforcing beam corresponding to the existing purlin, and the reinforcing U-shaped rod is snapped into the bottom of the corresponding existing purlin.

[0009] Furthermore, the bottom surface of the reinforcing U-shaped rod is provided with two symmetrically arranged first right-angle plates, and the reinforcing U-shaped rod is connected to the reinforcing crossbeam through the first right-angle plates.

[0010] Furthermore, the inner or outer side of the reinforced side column is provided with a second right-angle plate, and the top of the second right-angle plate is connected to the bottom or top surface of the existing side longitudinal beam on the same side.

[0011] Furthermore, the second right-angle plate includes a connecting part on the outer side of the vertical section that is connected to the reinforcing side column.

[0012] Furthermore, a reinforcing central column is provided below both ends of the reinforcing longitudinal beam, and the reinforcing central column is connected to the corresponding existing central column.

[0013] Furthermore, the end of the reinforcing longitudinal beam is provided with an end plate that extends upward or downward, and the reinforcing longitudinal beam is connected to the existing central column through the end plate.

[0014] Furthermore, the reinforced side column is located on the outside of the old factory building's steel structure, and the top of the reinforced side column is provided with an extension column extending inward to the inside of the old factory building's steel structure. The inner end of the extension column is connected to the corresponding reinforced crossbeam.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up reinforcement units between adjacent frame units, specifically, the reinforcement beams directly support the existing purlins. The connection structure of the reinforcement U-shaped rods and the first right-angle plate distributes the concentrated force of the purlins on the roof steel beams, preventing the purlins from bending or breaking due to photovoltaic load overload. The side columns are connected to the existing side longitudinal beams through the second right-angle plate, transferring part of the load to the side columns and reducing the risk of stress concentration in the existing side longitudinal beams. The longitudinal beams are connected to the existing central columns through end plates or reinforcement central columns to form a longitudinal support system, distributing the force on the central columns and preventing them from becoming unstable due to photovoltaic load overload. Combined with the reinforcement of the longitudinal beams and the existing central longitudinal beams, this ensures that the original steel structure of the old factory building can still operate safely after the photovoltaic system is installed, avoiding overall structural failure due to local overload. 2. The modular design of the reinforcement units allows for flexible adjustment of the number and location of reinforcement units according to the actual structure of the factory, significantly reducing construction complexity. This not only lowers the technical threshold for installing photovoltaics in factories but also improves construction efficiency.

[0016] 3. The entire structure is located inside the steel structure of the old factory building (except for some reinforced side columns), and the columns are located on the side of the factory building or near the existing central columns. This arrangement has almost no conflict with the existing layout of the old factory building and will not damage the drainage and other functions of the old factory building roof. Attached Figure Description

[0017] Figure 1 A structural schematic diagram of the steel structure of an old factory building; Figure 2 This is a schematic diagram of the first structural combination of this application and the steel structure of the old factory building; Figure 3 This is a schematic diagram of the first structure of the reinforcing unit and the reinforcing longitudinal beam in this utility model; Figure 4 This is a schematic diagram of a second structural design combining this application with the steel structure of an old factory building; Figure 5 This is a schematic diagram of a second structure for the reinforcing unit and the reinforcing longitudinal beam in this utility model; Figure 6 This is a schematic diagram of the reinforced U-shaped rod in this utility model; Figure 7 This is a schematic diagram of the structure of the second right-angled plate in this utility model.

[0018] In the diagram: 100, steel structure of the old factory building; 101, existing side column; 102, existing central column; 103, existing side longitudinal beam; 104, existing central longitudinal beam; 105, existing crossbeam; 106, existing purlin; 200, reinforcement unit; 201, reinforced side column; 202, reinforced support column; 203, reinforced crossbeam; 204, reinforced U-shaped bar; 205, first right-angle plate; 206, second right-angle plate; 2061, connecting part; 207, extension column; 300, reinforced longitudinal beam; 301, end plate; 400, reinforced central column. Detailed Implementation

[0019] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if terms such as "upper", "lower", "front", "rear", "left", "right" indicate orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention. It should be understood that if terms such as "end", "side", "end portion", "side part", "lateral", "longitudinal", etc. indicate orientation or positional relationship, they are only corresponding to the length and width of the corresponding component. That is, "end" indicates the head and tail area in the length direction of the corresponding component, and "side part" indicates the head and tail area in the width direction of the corresponding component. They are used for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation.

[0020] Combined with appendix Figure 1 The old factory building steel structure 100 includes existing side columns 101, existing central columns 102, existing side longitudinal beams 103, existing central longitudinal beams 104, existing cross beams 105 and existing purlins 106, forming a skeleton unit consisting of a pair of existing side columns 101, an existing central column 102 and a pair of existing side longitudinal beams 103.

[0021] Combined with appendix Figure 2-7 A roof reinforcement system for adding photovoltaics to old factory buildings is disclosed. This system involves placing at least one reinforcement unit 200 between adjacent frame units of the steel structure of the old factory building to equally support the existing purlins 106, increasing the support area of ​​each existing purlin 106 and existing side longitudinal beams 103. This ensures increased load-bearing capacity of the existing purlins 106 and existing side longitudinal beams 103, while also distributing the stress on the existing side columns 101 to prevent overloading. The load-bearing capacity is further improved by combining the reinforcement beams 300 with the existing central longitudinal beams 104. When the existing central column 102 also needs reinforcement, it can be supported by the reinforcement beams 300 and existing central longitudinal beams 104, distributing the stress on the existing central column 102 and preventing overloading, thus ensuring the system can support the photovoltaic system.

[0022] It should be noted that the number of reinforcement units 200 between two adjacent skeleton units is calculated based on the bending bearing capacity of the existing purlin 106, and the specific number is not limited.

[0023] Example 1, in conjunction with Appendix Figure 2-3Regarding the situations where the inner ground of the steel structure 100 of an old factory building lacks space for installation and the existing central column 102 does not require reinforcement, a roof reinforcement system for installing photovoltaics in an old factory building is proposed. This system includes at least one reinforcement unit 200 located in two adjacent frame units and a reinforcement longitudinal beam 300 fixedly installed on the bottom surface of the existing central longitudinal beam 104. Both ends of the reinforcement longitudinal beam 300 are connected to the corresponding existing central column 102.

[0024] The end of the reinforcing longitudinal beam 300 is provided with a downwardly extending end plate 301, and the reinforcing longitudinal beam 300 is connected to the existing central column 102 through the end plate 301.

[0025] Combined with appendix Figure 2-3 The reinforcement unit 200 includes: The reinforced side column 201 is located on the outer side of the surface where two adjacent existing side columns 101 are located on the same side, that is, the reinforced side column 201 is located on the outer side of the old factory steel structure 100. The top of the reinforced side column 201 is provided with an extension column 207 that extends inward to the inner side of the old factory steel structure 100. As needed, a second right-angle plate 206 is provided on the inner side of the reinforced side column 201, and the top of the second right-angle plate 206 is connected to the bottom or top surface of the existing side longitudinal beam 103 on the same side.

[0026] Furthermore, the second right-angle plate 206 includes a connecting part 2061 on the outer side of the vertical section, which is connected to the reinforcing side column 201; the connecting part 2061 can be inserted into the inner side of the reinforcing side column 201, such as an H-beam, and connected by bolts.

[0027] Reinforcement column 202 is fixedly installed on the top surface of the existing longitudinal beam 104; The reinforcing beam 203 is fixedly installed at both ends on the inner end of the extension column 207 and the top of the reinforcing support column 202, respectively, to support the corresponding existing purlin 106.

[0028] As needed, a reinforcing U-shaped bar 204 is provided at the top of the reinforcing beam 203 corresponding to the existing purlin 106, and the reinforcing U-shaped bar 204 is snapped into the bottom of the corresponding existing purlin 106; that is, the number of reinforcing U-shaped bars 204 installed at the top of the two reinforcing beams 203, such as channel steel, is the same as the number of existing purlins 106 between the two adjacent frame units, and the positions correspond one-to-one.

[0029] To facilitate the installation of the reinforcing U-shaped bar 204, two symmetrically arranged first right-angle plates 205 are provided on the bottom surface of the reinforcing U-shaped bar 204, and are connected to the reinforcing crossbeam 203 through the first right-angle plates 205. As needed, the first right-angle plates 205 can be connected to the reinforcing crossbeam 203 and the reinforcing U-shaped bar 204 by welding or bolting.

[0030] Example 2, in conjunction with Appendix Figure 4-5In cases where the inner ground of the steel structure 100 of an old factory building lacks space for installation and the existing central column 102 does not require reinforcement, a roof reinforcement system for installing photovoltaics in an old factory building is proposed. The system differs from Embodiment 1 in that: a reinforcing longitudinal beam 300 is fixedly installed on the top surface of the existing central longitudinal beam 104; the end of the reinforcing longitudinal beam 300 is connected to the existing central column 102 via an upwardly extending end plate 301.

[0031] The reinforced central column 400 is connected to the corresponding existing central column 102; that is, the reinforced central column 400 supports the combination of the reinforced longitudinal beam 300 and the existing longitudinal beam 104.

[0032] The reinforced side column 201 is located on the inner side of the plane where two adjacent existing side columns 101 are located on the same side, that is, the reinforced side column 201 is located on the inner side of the old factory steel structure 100. As needed, a second right-angle plate 206 is provided on the outer side of the reinforced side column 201, and the top of the second right-angle plate 206 is connected to the bottom surface of the existing side longitudinal beam 103 on the same side.

[0033] Reinforcing column 202 is fixedly installed on the top surface of reinforcing longitudinal beam 300; The reinforcing beam 203 is fixedly installed at both ends on the top of the reinforcing side column 201 and the reinforcing support column 202, respectively.

[0034] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. A roof reinforcement system for adding photovoltaics to an old factory building, comprising a steel structure (100) of the old factory building, wherein the steel structure (100) includes existing side columns (101), existing central columns (102), existing side longitudinal beams (103), existing central longitudinal beams (104), existing crossbeams (105), and existing purlins (106), forming a skeleton unit consisting of a pair of existing side columns (101), an existing central column (102), and a pair of existing side longitudinal beams (103), characterized in that: It also includes at least one reinforcing unit (200) disposed on two adjacent skeleton units and a reinforcing longitudinal beam (300) fixedly installed on the top or bottom surface of the existing central longitudinal beam (104), the two ends of the reinforcing longitudinal beam (300) being connected to the corresponding existing central column (102); the reinforcing unit (200) includes: The reinforced side column (201) is located between two adjacent existing side columns (101) on the same side; The reinforcing support column (202) is fixedly installed on the top surface of the reinforcing longitudinal beam (300) or the existing middle longitudinal beam (104); The reinforcing beam (203) is fixedly installed at both ends on the top of the reinforcing side column (201) and the reinforcing support column (202) to support the corresponding existing purlins (106).

2. The roof reinforcement system for adding photovoltaic power to old factory buildings according to claim 1, characterized in that: The top of the reinforcing beam (203) is provided with a reinforcing U-shaped rod (204) corresponding to the existing purlin (106), and the reinforcing U-shaped rod (204) is snapped into the bottom of the corresponding existing purlin (106).

3. The roof reinforcement system for adding photovoltaic power to old factory buildings according to claim 2, characterized in that: The bottom surface of the reinforcing U-shaped rod (204) is provided with two symmetrically arranged first right angle plates (205), and the reinforcing U-shaped rod (204) is connected to the reinforcing beam (203) through the first right angle plates (205).

4. The roof reinforcement system for adding photovoltaic power to old factory buildings according to claim 1, characterized in that: The inner or outer side of the reinforced side column (201) is provided with a second right angle plate (206), and the top of the second right angle plate (206) is connected to the bottom or top surface of the existing side longitudinal beam (103) on the same side.

5. A roof reinforcement system for adding photovoltaic power to old factory buildings according to claim 4, characterized in that: The second right-angle plate (206) has a connecting part (2061) on the outer side of the vertical section, which is connected to the reinforced side column (201).

6. The roof reinforcement system for adding photovoltaic power to old factory buildings according to claim 1, characterized in that: The reinforced longitudinal beam (300) is further provided with reinforced central columns (400) at both ends below, and the reinforced central columns (400) are connected to the corresponding existing central columns (102).

7. The roof reinforcement system for adding photovoltaic power to old factory buildings according to claim 1, characterized in that: The end of the reinforcing longitudinal beam (300) is provided with an end plate (301) that extends upward or downward, and the reinforcing longitudinal beam (300) is connected to the existing central column (102) through the end plate (301).

8. A roof reinforcement system for adding photovoltaic power to old factory buildings according to claim 1, characterized in that: The reinforced side column (201) is located on the outside of the old factory steel structure (100). The top of the reinforced side column (201) is provided with an extension column (207) extending inward to the inside of the old factory steel structure (100). The inner end of the extension column (207) is connected to the corresponding reinforced crossbeam (203).

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