Photovoltaic support structure on large prestressed concrete roof panel

Abstract

The utility model discloses a photovoltaic support structure on large-scale prestressed concrete roof panels, which is characterized in that a plurality of inclined steel beams are arranged on the large-scale prestressed concrete roof panels on two sides of a roof ridge at intervals, and the inclined steel beams are flatly laid along the gradient direction of the roof and are supported above joints of the large-scale prestressed concrete roof panels; the inclined steel beams are fixedly connected with hanging rings on the large prestressed concrete roof panels on the two sides of the inclined steel beams through profile steel connecting pieces, a plurality of steel purlins stretching out in the longitudinal direction are laid on the inclined steel beams at intervals, and photovoltaic panels are laid on the steel purlins. The inclined steel beam and the hanging ring on the large-scale prestressed concrete roof panel are fixed together through the profile steel connecting piece, so that the inclined steel beam is fixed, then the steel purline is laid on the inclined steel material, the photovoltaic panel can be conveniently installed, and the photovoltaic panel can be conveniently installed under the condition that the large-scale prestressed concrete roof panel is not damaged and production is not influenced through the structure. A photovoltaic panel is laid on the large prestressed concrete roof panel.

Description

Technical Field

[0001] The utility model relates to a photovoltaic support structure, in particular to a photovoltaic support structure on a large prestressed concrete roof panel. Background Art

[0002] Solar energy is a clean, renewable energy source. Solar power generation is one of the new energy sources with mature technology, the conditions for large-scale development, and the potential for commercial development. The development and utilization of solar energy resources is of great significance for adjusting energy structures and alleviating environmental pollution.

[0003] Many industrial plants built more than 20 years ago have trussed roofs topped with large prestressed concrete panels. Considering the need for photovoltaic power generation, these rooftops can be fully utilized by installing photovoltaic panels to generate electricity. The generated energy is then used entirely within the plant's own facilities, providing local consumption for the plant's loads. By adopting this "self-generation, self-use" model, enterprises can adjust their energy consumption structure, reduce fossil fuel consumption, and lower electricity costs.

[0004] However, there is a big problem in laying photovoltaic panels on large prestressed concrete roof panels. That is, large prestressed concrete roof panels are prefabricated components in the form of plate ribs and thin plates. The thinnest part of the thin plate is only 30mm, and the vertical stiffness is weak. If the commonly used photovoltaic brackets and foundations are directly installed, it is very easy to damage the roof panels, causing rain leakage and water seepage, affecting production. Summary of the Invention

[0005] The purpose of the utility model is to provide a photovoltaic support structure on a large prestressed concrete roof panel. The structure can lay photovoltaic panels on the large prestressed concrete roof panel without damaging the large prestressed concrete roof panel and affecting production.

[0006] The technical solution of the utility model is as follows: a photovoltaic support structure on a large prestressed concrete roof panel, comprising a plurality of large prestressed concrete roof panels laid flat on the roof of a factory building, a plurality of inclined steel beams arranged at intervals on the large prestressed concrete roof panels on both sides of the roof ridge, the inclined steel beams being laid flat along the roof slope direction and supported above the joints of the plurality of large prestressed concrete roof panels, the inclined steel beams being fixedly connected to the hanging rings on the large prestressed concrete roof panels on both sides thereof via steel connectors, a plurality of steel purlins extending longitudinally being laid at intervals on the inclined steel beams, and photovoltaic panels being laid flat on the steel purlins;

[0007] The ends of two inclined steel beams on the same section on both sides of the ridge are fixed together;

[0008] Each inclined steel beam is provided with at least two lifting ring connections, and the inclined steel beam at each lifting ring connection is fixedly connected to the lifting rings at adjacent end corners of four closely arranged large prestressed concrete roof panels through four steel connectors.

[0009] In the aforementioned photovoltaic support structure on a large prestressed concrete roof panel, the distance between the two hanging ring connections is 3 to 4 large prestressed concrete roof panel widths.

[0010] In the aforementioned photovoltaic support structure on a large prestressed concrete roof panel, each inclined steel beam is provided with a hanging ring connection near the eaves and the ridge.

[0011] In the aforementioned photovoltaic support structure on a large prestressed concrete roof panel, the steel connector includes a vertical steel connector welded and fixed to a lifting ring, the upper end of the vertical steel connector is fixedly connected to a horizontal steel connector, and the other end of the horizontal steel connector is fixedly connected to the side wall of the inclined steel beam.

[0012] In the aforementioned photovoltaic support structure on a large prestressed concrete roof panel, each large prestressed concrete roof panel is provided with an inclined steel beam at the joint in the length direction.

[0013] In the aforementioned photovoltaic support structure on a large prestressed concrete roof panel, the inclined steel beam is an I-beam.

[0014] The beneficial effects of this utility model are as follows: Compared with the existing technology, this utility model provides an inclined steel beam, which is fixed to the hanging ring of the large prestressed concrete roof panel via a steel connector. At the same time, two inclined steel beams at the ridge are welded together to achieve the fixation of the inclined steel beam. Then, steel purlins are laid on the inclined steel material to facilitate the installation of photovoltaic panels. This structure allows photovoltaic panels to be laid on large prestressed concrete roof panels without damaging the large prestressed concrete roof panels and without affecting production. This utility model not only meets the bearing capacity requirements and usage requirements, but also is convenient to construct and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a structural diagram when a lifting ring connection is set on the inclined steel beam;

[0017] Figure 3 It is a structural diagram of the connection between the inclined steel beam and the lifting ring;

[0018] Figure 4 for Figure 3 Schematic diagram of the top view structure;

[0019] Figure 5 This is a schematic diagram of the laying of inclined steel beams;

[0020] Figure 6 The structural diagram of the large prestressed concrete roof panel (top view and main view);

[0021] Figure 7 for Figure 1 A partial schematic diagram of .

[0022] Figure numerals: 1-large prestressed concrete roof panel, 2-inclined steel beam, 3-lifting ring, 4-steel connector, 5-steel purlin, 6-photovoltaic panel, 7-roof truss. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0024] An embodiment of the present utility model: A photovoltaic support structure on a large prestressed concrete roof panel, comprising a plurality of large prestressed concrete roof panels 1 laid flat on the roof of a factory building, a plurality of inclined steel beams 2 are arranged at intervals on the large prestressed concrete roof panels 1 on both sides of the roof ridge, the inclined steel beams 2 are laid flat along the roof slope direction and supported above the joints of the plurality of large prestressed concrete roof panels 1, the inclined steel beams 2 are fixedly connected to the hanging rings 3 on the large prestressed concrete roof panels 1 on both sides thereof via steel connectors 4, a plurality of steel purlins 5 extending longitudinally are laid at intervals on the inclined steel beams 2, and photovoltaic panels 6 are laid flat on the steel purlins 5.

[0025] The inclined steel beam 2 should not be laid flat on the thin plate of the large prestressed concrete roof panel 1 during the installation process, otherwise the large prestressed concrete roof panel 1 is easily damaged, affecting production. For this reason, the inclined steel beam 2 is laid flat along the roof slope direction and supported above the joints of multiple large prestressed concrete roof panels 1, combined with Figure 6 It can be seen that each large prestressed concrete roof panel 1 has short side ribs protruding downwards at both ends along its width direction. Figure 5 It can be seen that the factory roof is fully covered with large prestressed concrete roof panels 1. The length direction of the large prestressed concrete roof panels 1 is in the same direction as the longitudinal direction of the factory building, and its width direction is the slope direction of the roof. Because when the roof in the form of a truss is fully covered with large prestressed concrete roof panels 1, the bottoms of the short side ribs of the large prestressed concrete roof panels 1 are all supported on the roof truss 7, so that the inclined steel beams 2 can be located directly above the roof truss 7, so that in the entire structure, the load borne by the inclined steel beams 2 can be transferred to the roof truss 7 through the short side ribs of the large prestressed concrete roof panels 1, thereby supporting the roof components through the roof truss 7, avoiding damage to the large prestressed concrete roof panels 1 under the pressure of the newly added components.

[0026] The ends of the two inclined steel beams 2 on the same section on both sides of the roof ridge are welded and fixed together, which can offset a part of the load of the inclined steel beams 2 along the slope direction.

[0027] Each inclined steel beam 2 is equipped with at least two lifting ring connections. At each lifting ring connection, the inclined steel beam 2 is fixedly connected to the lifting rings 3 at adjacent corners of four adjacent large prestressed concrete roof panels 1 via four steel connectors 4. The four adjacent large prestressed concrete roof panels 1 are placed two by two on either side of the inclined steel beam 2. Simultaneously, the multiple large prestressed concrete roof panels 1 on either side of the inclined steel beam 2 limit the downward force of the inclined steel beam 2, preventing a single large prestressed concrete roof panel 1 from bearing the pressure alone and being easily damaged. This structure ensures that the inclined steel beam 2 and the large prestressed concrete roof panels 1 are securely fixed together.

[0028] The distance between the two lifting ring connections is 3 to 4 large prestressed concrete roof panels 1 widths. This distance has a good fixing effect on the inclined steel beam 2, while avoiding the need for a large number of steel connectors 4 due to the distance being too small.

[0029] Each inclined steel beam 2 is provided with a lifting ring connection near the eaves and the ridge. The lifting ring connections at both ends of the inclined steel beam 2 can better fix it.

[0030] The steel connector 4 includes a vertical steel connector 401 welded and fixed to the lifting ring 3. The upper end of the vertical steel connector 401 is welded and fixedly connected to the horizontal steel connector 402. The other end of the horizontal steel connector 402 is welded and fixedly connected to the side wall of the inclined steel beam 2. In the specific connection process, when the position of the lifting ring connection is confirmed, the lifting ring 3 to be connected to the lifting ring connection is first chiseled out. Because the lifting ring 3 itself is set inside the large prestressed concrete roof panel 1, its surface is covered with a waterproof layer, an insulation layer and other building surface layers. After the building surface layers on the surface of the large prestressed concrete roof panel 1 are removed, the lifting ring 3 is exposed, and then the steel connector 4 is welded and fixed to the lifting ring 3.

[0031] Each large prestressed concrete roof panel 1 is provided with an inclined steel beam 2 at the joint in the length direction. The plurality of inclined steel beams 2 can better support the steel purlins 5 above it.

[0032] The inclined steel beam 2 is an I-beam, which is easy to purchase and install. When in use, its two side walls are welded and fixed to the horizontal steel connectors 402 in the steel connectors 4 on both sides of the inclined steel beam 2, and its top surface is used to support and fix the steel purlins 5.

[0033] The utility model discloses a large -scale prestressed concrete roof panel 1 on the lifting ring 3 of type steel connecting piece 4 is connected with inclined steel beam 2, and the inclined steel beam 2 is fixed on the large -scale prestressed concrete roof panel 1 on the roof truss 7 top, and steel purlin 5 is laid on the inclined steel beam 2, then photovoltaic board 6 is laid flat on steel purlin 5, and the inclination of photovoltaic board 6 is same with the original roof inclination.

[0034] The photovoltaic support structure construction steps on the large -scale prestressed concrete roof panel are as follows:

[0035] First step: the specification of inclined steel beam 2 and the position of lifting ring 3 and inclined steel beam 2 connection are determined through stress calculation.The interval of lifting ring connection is generally taken as three large -scale prestressed concrete roof panels 1 board width or four board width (4.5m~6m), and there is a block near the eaves and ridge position, and each inclined steel beam 2 has at least two lifting ring connection positions.Inclined steel beam 2 is laid flat along the roof inclination direction, and two inclined steel beams 2 are welded into an integral body at the ridge, and can offset a part of load along the inclination direction.

[0036] Second step: the position of lifting ring 3 on the large -scale prestressed concrete roof panel 1 is determined on site at the factory roof according to the structural professional construction drawing and 92G410 atlas " prestressed concrete roof panel", and the lifting ring 3 is located on the rib in the direction of board length, and is 350mm~600mm away from the edge in the direction of board width.The lifting ring is generally 10mm diameter round steel, and each board has four lifting rings 3.

[0037] Third step: the lifting ring 3 on the large -scale prestressed concrete roof panel 1 is connected with inclined steel beam 2 through type steel connecting piece 4, realizes that the inclined steel beam 2 is fixed on the large -scale prestressed concrete roof panel 1, and the inclined steel beam 2 must be located directly above the roof truss 7, the load borne by the inclined steel beam 2 can be transmitted to the roof truss 7 through the rib of large -scale prestressed concrete roof panel 1, and the inclined steel beam 2 should not be laid flat to the thin plate, otherwise the large -scale prestressed concrete roof panel 1 is easily damaged, and the production is affected.

[0038] Fourth step: steel purlin 5 is laid on the inclined steel beam 2, then photovoltaic board 6 is laid flat on steel purlin 5, and the inclination of photovoltaic board 6 is same with the original roof inclination.Steel purlin 5 is connected with inclined steel beam 2 through purlin support, and the purlin support and inclined steel beam 2 are welded into an integral body in the factory and are transported to the construction site for assembly, so as to reduce the welding workload on site.

Claims

1. A photovoltaic support structure on a large prestressed concrete roof panel, comprising a plurality of large prestressed concrete roof panels (1) laid flat on a factory roof, characterized in that: A plurality of inclined steel beams (2) are arranged at intervals on the large prestressed concrete roof panels (1) on both sides of the roof ridge. The inclined steel beams (2) are laid flat along the roof slope direction and supported above the joints of the plurality of large prestressed concrete roof panels (1). The inclined steel beams (2) are fixedly connected to the hanging rings (3) on the large prestressed concrete roof panels (1) on both sides thereof via steel connectors (4). A plurality of steel purlins (5) extending longitudinally are laid at intervals on the inclined steel beams (2), and photovoltaic panels (6) are laid flat on the steel purlins (5). The ends of two inclined steel beams (2) on the same cross section on both sides of the roof ridge are fixed together; Each inclined steel beam (2) is provided with at least two lifting ring connections, and the inclined steel beam (2) at each lifting ring connection is fixedly connected to the lifting rings (3) at adjacent end corners of four closely arranged large prestressed concrete roof panels (1) via four steel connectors (4).

2. The photovoltaic support structure on a large prestressed concrete roof panel according to claim 1, characterized in that: The distance between the two hanging ring connections is equal to the width of 3 to 4 large prestressed concrete roof panels (1).

3. The photovoltaic support structure on a large prestressed concrete roof panel according to claim 1, characterized in that: Each inclined steel beam (2) is provided with a hanging ring connection near the eaves and the ridge.

4. The photovoltaic support structure on a large prestressed concrete roof panel according to claim 1, characterized in that: The steel connector (4) includes a vertical steel connector (401) welded to the lifting ring (3), the upper end of the vertical steel connector (401) is fixedly connected to the horizontal steel connector (402), and the other end of the horizontal steel connector (402) is fixedly connected to the side wall of the inclined steel beam (2).

5. The photovoltaic support structure on a large prestressed concrete roof panel according to claim 1, characterized in that: Each large prestressed concrete roof panel (1) is provided with an inclined steel beam (2) at a joint in the length direction.

6. The photovoltaic support structure on a large prestressed concrete roof panel according to claim 1, characterized in that: The inclined steel beam (2) is an I-beam.

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