Door-type steel structure with good bearing capacity
By setting a load-bearing capacity-enhancing structure on the portal frame, including the connection between the building steel beam frame and the cross bracing, and using round steel tie rods to form a recessed cross bracing, the problem of insufficient load-bearing capacity of light steel structure buildings after the addition of photovoltaic power generation systems is solved, and better load-bearing capacity is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG JUGONG NEW ENERGY CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-07
AI Technical Summary
Existing light steel structure buildings have insufficient load-bearing capacity after the addition of distributed photovoltaic power generation systems, and therefore require reinforcement.
A load-bearing capacity strengthening structure is set on the portal frame, including the connection between the building steel beam frame and the cross bracing structure. The support force is improved by round tube supports and multiple connection points, and the cross bracing structure is fixed by using round steel tie rods to form a recessed cross bracing structure.
It significantly improves the load-bearing capacity of the portal steel structure, ensuring that the building structure can stably support new loads such as photovoltaic panels.
Smart Images

Figure CN224468559U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of portal steel structure technology, and in particular to a portal steel structure with good load-bearing capacity. Background Technology
[0002] Portal frames are a traditional structural system. The main superstructure of this type of structure includes steel column tubes and steel beam frames.
[0003] Currently, there is an increasing demand for adding distributed photovoltaic power generation systems to the roofs of light steel structure industrial buildings. However, due to the increased load leading to insufficient load-bearing capacity of the main building structure, it is necessary to reinforce the existing building structure.
[0004] To address this, we have introduced a portal steel structure with good load-bearing capacity. By erecting a structure on top of it, the portal frame can have better support and bearing capacity. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a portal steel structure with good load-bearing capacity. By erecting a structure on it, the portal frame can have better support and bearing capacity.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A portal steel structure with good load-bearing capacity includes:
[0008] A portal frame structure, comprising two building steel columns, the tops of which are jointly fixedly fitted with a building steel beam frame;
[0009] The load-bearing capacity strengthening structure includes multiple connecting structures. A cross brace structure is fixedly installed on both sides of the bottom of the circular tube support. The building steel beam frame is upwardly convex, and the cross brace structure is downwardly concave. Multiple connecting structures connect the building steel beam frame and the cross brace structure.
[0010] Furthermore, the building steel column tube and the building steel beam frame are welded and fixed.
[0011] Furthermore, a first slot is provided on the building steel column tube, and a second slot is provided on the building steel beam frame. The building steel column tube and the building steel beam frame are fixedly installed together by passing a locking screw through the first slot and the second slot and by using a nut.
[0012] Furthermore, the connecting structure includes a second base plate, and multiple second base plates are detachably and fixedly installed on the bottom of the building steel beam frame. Circular tube supports are fixedly installed on the bottom of the multiple second base plates, and third mounting plates are fixedly installed on the bottom of the circular tube supports. The cross brace structure is fixedly installed on the multiple third mounting plates.
[0013] Furthermore, the cross bracing structure includes a first base plate, and the bottom of both sides of the building steel beam frame can be detachably and fixedly installed with the first base plate. A first mounting plate is fixedly connected to each of the two first base plates. Mounting blocks are hinged to each of the two first mounting plates. Two mounting blocks are hinged to each of the multiple third mounting plates. Round steel tie rods are detachably and fixedly installed on each of the two mounting blocks. Two adjacent round steel tie rods are installed together by a convenient installation mechanism.
[0014] Furthermore, the convenient installation mechanism includes a second mounting plate, both sides of which are provided with threaded grooves. A threaded rod is fixedly installed on the side of the round steel tie rod near the second mounting plate, and the threaded rod is threadedly connected in the corresponding threaded groove.
[0015] Compared with the prior art, the beneficial effects of this utility model include:
[0016] A portal steel structure with good load-bearing capacity is installed on an existing portal frame through a recessed cross bracing structure. Specifically, multiple connecting structures and round tube supports are set between the lower flange of the building steel beam frame and the cross bracing structure for connection and fixation, thereby improving the load-bearing capacity of the portal frame and significantly enhancing the load-bearing capacity of the building structure.
[0017] The set horizontal bracing structure is a recessed horizontal bracing structure composed of multiple round steel tie rods. The multiple round steel tie rods are conveniently installed at the bottom of the building steel beam frame through the first mounting plate, the second mounting plate, the mounting block, and the third mounting plate, thus facilitating the erection of the horizontal bracing structure on the portal frame. Attached Figure Description
[0018] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:
[0019] Figure 1 This is a sectional view of a portal steel structure with good load-bearing capacity according to the present invention;
[0020] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the diagram;
[0021] Figure 3 For the present utility model Figure 1Enlarged structural diagram at point B in the diagram;
[0022] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point C;
[0023] Figure 5 For the present utility model Figure 1 A magnified structural diagram at point D in the diagram.
[0024] Figure label:
[0025] 1. Building steel column tube; 2. Building steel beam frame; 3. Round tube support; 4. Round steel tie rod; 5. Locking screw; 6. First slot; 7. Second slot; 8. Nut.
[0026] 9. First base plate; 10. First mounting plate; 11. Mounting block; 12. Second mounting plate; 13. Threaded rod; 14. Threaded groove; 15. Third mounting plate; 16. Second base plate. Detailed Implementation
[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0028] refer to Figure 1-5 The figure shows a portal steel structure with good load-bearing capacity, including: a portal frame structure, the portal frame structure including two building steel column tubes 1, and a building steel beam frame 2 is fixedly installed on the top of the two building steel column tubes 1.
[0029] The load-bearing capacity strengthening structure includes multiple connecting structures and a circular tube support 3. A cross brace structure is fixedly installed on both sides of the bottom of the circular tube support 3. The building steel beam frame 2 is convex upward, and the cross brace structure is concave downward. Multiple connecting structures connect the building steel beam frame 2 and the cross brace structure.
[0030] In this utility model, multiple connecting structures and round tube supports 3 are provided between the lower flange of the building steel beam frame 2 and the cross bracing structure to connect and fix it, thereby improving the bearing capacity of the portal frame and significantly improving the load-bearing capacity of the building structure.
[0031] A portal steel structure with good load-bearing capacity includes a building steel column tube 1, a building steel beam frame 2, a circular tube support 3, and a circular steel tie rod 4.
[0032] In this preferred embodiment, a building steel beam frame 2 is fixedly installed on the top of every two building steel column tubes 1. The installation methods of the building steel column tubes 1 and the building steel beam frame 2 can be any one of the following two.
[0033] The first installation method: The steel column tube 1 and the steel beam frame 2 are installed by welding the steel column tube 1 and the steel beam frame 2 together.
[0034] The second installation method: The steel column tube 1 and the steel beam frame 2 are installed by opening a first slot 6 on the steel column tube 1 and a second slot 7 on the steel beam frame 2. The locking screw 5 passes through the first slot 6 and the second slot 7, and the steel column tube 1 and the steel beam frame 2 are fixed together by the nut 8.
[0035] Among them, the building steel beam frame 2 is convex upwards, and the cross bracing structure is concave downwards.
[0036] Furthermore, the cross bracing structure includes a first base plate 9, and the bottom of both sides of the round tube support 3 are fixedly installed with the first base plate 9. The first base plate 9 is fixedly installed on the building steel beam frame 2 by screws and nuts.
[0037] A first mounting plate 10 is fixedly installed on each of the two first base plates 9, and the first base plates 9 and the first mounting plates 10 are integrated. The building steel beam frame 2 is connected to the first base plates 9 by two vertically installed high-strength bolts.
[0038] Mounting blocks 11 are hinged to both first mounting plates 10; round steel tie rods 4 are detachably mounted on the mounting blocks 11.
[0039] In this preferred embodiment, the connection structure includes a second base plate 16, and multiple second base plates 16 are fixedly connected to the bottom of the building steel beam frame 2; the multiple second base plates 16 are installed on the building steel beam frame 2 by screws and nuts, and the building steel beam frame 2 and the second base plates 16 are connected by two vertically arranged high-strength bolts.
[0040] The bottom of each of the multiple second base plates 16 is fixedly installed with a round tube support 3, and the multiple round tube support 3 are evenly distributed between the two first mounting plates 10.
[0041] Furthermore, a third mounting plate 15 is fixedly installed on the bottom of each of the multiple round tube support members 3, and the cross brace structure is fixedly installed on the multiple third mounting plates 15. Two mounting blocks 11 are hinged to the third mounting plate 15, and the two mounting blocks 11 are distributed on both sides of the third mounting plate 15. Round steel tie rods 4 can be detachably installed on both mounting blocks 11, and two adjacent round steel tie rods 4 are installed together by a convenient installation mechanism.
[0042] In this preferred embodiment, the convenient installation mechanism is a turnbuckle. The convenient installation mechanism includes a second mounting plate 12 and a threaded rod 13. The threaded rod 13 is fixedly connected to the side of the round steel tie rod 4 away from the mounting block 11. Threaded grooves 14 are opened on both sides of the second mounting plate 12, and the corresponding threaded rods 13 are threadedly connected in the corresponding threaded grooves 14, so that adjacent round steel tie rods 4 are fixedly installed together.
[0043] Multiple round steel tie rods 4 form a cross brace structure; and the cross brace structure is concave.
[0044] Furthermore, in order to make the multiple round steel tie rods 4 more stable and convenient to install at the bottom of the building steel beam frame 2, the threaded rods 13 on the two round steel tie rods 4 are threaded into the second mounting plate 12; the two round steel tie rods 4 are respectively hinged to the first mounting plate 10 and the third mounting plate 15.
[0045] The cross bracing structure of this utility model is a recessed cross bracing structure composed of multiple round steel tie rods 4. The multiple round steel tie rods 4 are conveniently installed on the bottom of the building steel beam frame through the first mounting plate 10, the second mounting plate 12, the mounting block 11, and the third mounting plate 15, thereby facilitating the erection of the cross bracing structure on the portal frame.
[0046] The basic working principle of this utility model is:
[0047] In practice, the existing portal frame has a steel beam frame 2 fixedly installed on the top of every two building steel columns 1; however, in order to meet the current need to install photovoltaic panels on the top of the building steel beam frame 2, the supporting force of the building steel beam frame 2 is not sufficient; therefore, the structure is designed so that the circular tube support 3 has a good supporting force.
[0048] Multiple round steel tie rods 4 are used to form a concave horizontal support structure in order to make the concave horizontal support structure easier to install.
[0049] Two threaded rods 13 are installed inside the second mounting plate 12, and the other side of the round steel tie rod 4 is installed on the mounting block 11.
[0050] The above structure allows the concave cross bracing structure composed of multiple round steel tie rods 4 to be conveniently installed between adjacent first mounting plates 10 and third mounting plates 15 or between two third mounting plates 15.
[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A portal steel structure with good load-bearing capacity, characterized in that, include: A portal frame structure, comprising two building steel column tubes (1), with a building steel beam frame (2) fixedly installed on the top of the two building steel column tubes (1). The load-bearing capacity strengthening structure includes multiple connecting structures and a circular tube support (3). A cross brace structure is fixedly installed on both sides of the bottom of the circular tube support (3). The building steel beam frame (2) is convex upward, and the cross brace structure is concave downward. Multiple connecting structures connect the building steel beam frame (2) and the cross brace structure.
2. The portal steel structure with good load-bearing capacity according to claim 1, characterized in that, The building steel column tube (1) and the building steel beam frame (2) are welded and fixed.
3. A portal steel structure with good load-bearing capacity according to claim 1, characterized in that, The building steel column tube (1) has a first slot (6) and the building steel beam frame (2) has a second slot (7). The building steel column tube (1) and the building steel beam frame (2) are fixed together by passing a locking screw (5) through the first slot (6) and the second slot (7) and by using a nut (8).
4. A portal steel structure with good load-bearing capacity according to claim 1, characterized in that, The connecting structure includes a second base plate (16), and a plurality of second base plates (16) are detachably and fixedly installed on the bottom of the building steel beam frame (2); a round tube support (3) is fixedly installed on the bottom of the plurality of second base plates (16), and a third mounting plate (15) is fixedly installed on the bottom of the round tube support (3), and the cross brace structure is fixedly installed on the plurality of third mounting plates (15).
5. A portal steel structure with good load-bearing capacity according to claim 4, characterized in that, The cross bracing structure includes a first base plate (9), and the bottom sides of the building steel beam frame (2) are detachably and fixedly installed with the first base plate (9); a first mounting plate (10) is fixedly connected to each of the two first base plates (9), and a mounting block (11) is hinged to each of the two first mounting plates (10); two mounting blocks (11) are hinged to each of the multiple third mounting plates (15); round steel tie rods (4) are detachably and fixedly installed on each of the two mounting blocks (11); and two adjacent round steel tie rods (4) are installed together by a convenient installation mechanism.
6. A portal steel structure with good load-bearing capacity according to claim 5, characterized in that, The convenient installation mechanism includes a second mounting plate (12), and threaded grooves (14) are provided on both sides of the second mounting plate (12). A threaded rod (13) is fixedly installed on the side of the round steel tie rod (4) near the second mounting plate (12), and the threaded rod (13) is threadedly connected in the corresponding threaded groove (14).