A high-stability detachable angle steel truss support system for a steel structure floor support plate

Abstract

The utility model discloses a kind of high stability detachable angle steel truss support systems for steel structure floor support plate, comprising: bottom pile, the top of bottom pile is provided with first vertical support, the top of first vertical support is horizontally provided with limiting transverse plate, the inside of first vertical support is provided with second vertical support, second vertical support is parallel with first vertical support, the top of second vertical support is erected with main chord frame, and the top of main chord frame and the bottom wall of limiting transverse plate are embedded, the bottom of main chord frame is provided with vice chord frame in parallel, and multiple groups of inclined web members are installed between vice chord frame and main chord frame, limiting connector is arranged at the junction of inclined web member and main chord frame, vice chord frame, and the end of inclined web member is respectively connected with main chord frame, vice chord frame through limiting connector and constitutes detachable structure connection.The utility model strengthens the connection strength on the whole steel truss overall structure, solves the problem of stress concentration, and effectively shortens the construction period of truss.

Description

Technical Field

[0001] This utility model relates to the field of floor slab design and construction technology, specifically to a high-stability detachable angle steel truss support system for steel structure floor slabs. Background Technology

[0002] With the continuous development of green construction in the building industry, the design and construction technology of floor slabs, one of the most important parts of construction, is also constantly improving. Traditional floor slab construction methods have many problems, such as complicated reinforcement, large workload of formwork and scaffolding, difficulty in ensuring construction quality, poor energy consumption, and serious environmental pollution, which no longer meet the development concept of green, low-carbon and environmental protection.

[0003] In recent years, a type of reinforced concrete and steel structure floor slab, which reduces the difficulty and amount of formwork and allows the steel truss itself to bear the external loads during construction, has been used in reinforced concrete and steel structure engineering. However, it still has the following technical drawbacks:

[0004] (1) The steel truss adopts a welded fixed structure, which is difficult to disassemble and has a low reuse rate.

[0005] (2) The stability of the node connection is insufficient, which easily leads to stress concentration and breakage at the node. Utility Model Content

[0006] The purpose of this utility model is to provide a high-stability detachable angle steel truss support system for steel structure floor decking, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides a high-stability detachable angle steel truss support system for steel structure floor decks, comprising: a bottom pile, a first vertical support at the top of the bottom pile, a limiting plate horizontally arranged at the top of the first vertical support, a second vertical support parallel to the first vertical support, a main chord frame at the top of the second vertical support, the top of the main chord frame fitting into the bottom wall of the limiting plate, a secondary chord frame parallel to the bottom of the main chord frame, and multiple sets of inclined diagonal braces installed between the secondary chord frame and the main chord frame, limiting connectors at the connection points between the diagonal braces and the main chord frame and the secondary chord frame, and the two ends of the diagonal braces being detachably connected to the main chord frame and the secondary chord frame respectively through limiting connectors.

[0008] In a preferred embodiment, the limiting connector includes a beveled side and a horizontal side. The beveled side of the limiting connector has an inner beveled groove, and a beveled mounting bolt is inserted into the inner beveled groove laterally. A horizontal mounting bolt is installed on the horizontal side of the limiting connector. The limiting connector is installed by fitting the inner beveled groove and the beveled web rod, and the limiting connector is detachably connected by the beveled mounting bolt and the beveled web rod.

[0009] In a preferred embodiment, two sets of diagonal web members are provided. A connecting and reinforcing rod is vertically provided in the middle of each set of diagonal web members. The upper and lower ends of the connecting and reinforcing rod are fixed to the main chord frame and the secondary chord frame, respectively. Side support feet are provided on both sides of the outer wall of the connecting and reinforcing rod. A right-angled triangular area is formed between the limiting connector, the connecting and reinforcing rod and the main chord frame. The side support feet and the connecting and reinforcing rod form a welded integrated structure. The side support feet are fixedly connected to the horizontal mounting bolts.

[0010] In a preferred embodiment, extension welding rods extend vertically downward on both sides of the main chord frame. The extension welding rods are engaged with the inner side of the middle of the first vertical support and the second vertical support. Locking crossbars are installed transversely through the interior of the first vertical support, the extension welding rods, and the second vertical support.

[0011] In a preferred embodiment, the height of the first vertical support is greater than the height of the second vertical support.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model strengthens the overall connection strength of the steel truss structure through the combination of vertical supports, main chords, secondary chords, and diagonal web members, solves the problem of stress concentration, effectively shortens the truss construction period, solves the problems of low overall truss disassembly efficiency and low reuse rate, and also solves the technical problem of cutting during disassembly.

[0014] This utility model uses two vertical supports as the main support parts. The stability of the center of gravity of the entire steel truss is ensured by the bottom pile and the vertical supports inserted into the bottom pile. The vertical supports are set up with double support points of the first vertical support and the second vertical support. Under the condition of high stability support, the spacing between the adjacent supports cooperates with the extension welded rods on both sides of the main chord to clamp and fix the extension welded rods. The main chord is locked and fixed again by the through locking crossbar, thereby ensuring the connection and stability of the entire steel truss structure.

[0015] This utility model adopts a main chord and a secondary chord distributed in parallel as the main structure of the steel truss. The connection is provided with inclined web members. The inclined web members can be limited by the inner inclined groove on the limiting connector to prevent them from tilting and deforming due to stress, which would affect the overall structural strength. Attached Figure Description

[0016] Figure 1 This is a front structural diagram of the highly stable detachable steel truss of this utility model;

[0017] Figure 2 A schematic diagram showing the arrangement of the extension weld rod positions for the high-stability detachable steel truss of this utility model;

[0018] Figure 3 This utility model relates to a highly stable detachable steel truss. Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Bottom pile; 2. First vertical support; 3. Second vertical support; 4. Locking crossbar; 5. Limiting crossbar; 6. Main chord frame; 7. Secondary chord frame; 8. Diagonal web member; 9. Limiting connector; 901. Inner inclined groove; 902. Horizontal mounting bolt; 903. Diagonal mounting bolt; 10. Connecting reinforcement rod; 11. Side support foot; 12. Extension welding rod. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example 1

[0023] like Figures 1 to 3 As shown, the preferred embodiment of this utility model of a high-stability detachable angle steel truss support system for steel structure floor decking includes: a bottom pile 1, a first vertical support 2, a second vertical support 3, a locking crossbar 4, a limiting crossbar 5, a main chord 6, a secondary chord 7, diagonal web members 8, and a limiting connector 9. The top of the bottom pile 1 is provided with the first vertical support 2, and the top of the first vertical support 2 is horizontally provided with the limiting crossbar 5. The inner side of the first vertical support 2 is provided with the second vertical support 3, which is parallel to the first vertical support 2. The two vertical supports serve as the main support components, and the stability of the entire steel truss's center of gravity is ensured by the bottom pile 1 and the vertical supports inserted into the bottom pile 1. The top of the second vertical support 3 is provided with the main chord 6, and the top of the main chord 6 is fitted into the bottom wall of the limiting crossbar 5. The bottom of the main chord 6 is provided with the secondary chord 7 in parallel. Multiple sets of inclined web members 8 are installed between the secondary chord frame 7 and the main chord frame 6. Limiting connectors 9 are provided at the connection points between the inclined web members 8 and the main chord frame 6 and the secondary chord frame 7. The two ends of the inclined web members 8 are respectively connected to the main chord frame 6 and the secondary chord frame 7 through the limiting connectors 9 to form a detachable structure.

[0024] Furthermore, the limiting connector 9 includes a beveled portion and a horizontal portion. The beveled portion of the limiting connector 9 has an inner beveled groove 901, through which a beveled mounting bolt 903 is inserted laterally. The horizontal portion of the limiting connector 9 is fitted with a horizontal mounting bolt 902. The limiting connector 9 is fitted and installed with the beveled web member 8 through the inner beveled groove 901, and the limiting connector 9 is detachably connected to the beveled web member 8 through the beveled mounting bolt 903. The main chord 6 and secondary chord 7, which are distributed parallel vertically, serve as the main structure of the steel truss. The beveled web member 8, inclined at its connection point, can be limited by the inner beveled groove 901 on the limiting connector 9, preventing it from tilting and deforming due to stress, thus affecting the overall structural strength.

[0025] Furthermore, two sets of diagonal web members 8 are provided. Each set of diagonal web members 8 has a vertically installed connecting and reinforcing rod 10 in the middle. The upper and lower ends of the connecting and reinforcing rod 10 are fixed to the main chord 6 and the secondary chord 7, respectively. Side supports 11 are provided on both sides of the outer wall of the connecting and reinforcing rod 10. The limiting connector 9, the connecting and reinforcing rod 10 and the main chord 6 form a right-angled triangular area. The side supports 11 and the connecting and reinforcing rod 10 form a welded integrated structure. The side supports 11 are fixedly connected to the horizontal mounting bolts 902. The connecting and reinforcing rod 10 can be connected to the adjacent limiting connector 9 through the side supports 11 on both sides to limit and fix the limiting connector 9, thereby making the connection of the entire steel truss node more stable.

[0026] Furthermore, the two sides of the main chord frame 6 extend vertically downwards with extension welding rods 12, which are engaged with the inner side of the middle of the first vertical support 2 and the second vertical support 3. Locking crossbars 4 are installed transversely through the interior of the first vertical support 2, the extension welding rods 12 and the second vertical support 3.

[0027] Furthermore, the height of the first vertical support 2 is greater than the height of the second vertical support 3. By designing the first vertical support 2 and the second vertical support 3 with a height difference, it is convenient for the main chord 6 to be erected on top of the second vertical support 3. Combined with the limiting horizontal plate 5 at the top of the outer first vertical support 2, the main chord 6 is fitted and installed, thus ensuring the connection strength of the entire steel truss structure. The double-support setting of the first vertical support 2 and the second vertical support 3, while ensuring high stability, allows the spacing between adjacent supports to cooperate with the extension welded rods 12 on both sides of the main chord 6, clamping and fixing the extension welded rods 12. Furthermore, the main chord 6 is locked and fixed a second time through the through-type locking horizontal bar 4, thus ensuring the stable connection of the entire steel truss structure.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-stability detachable angle steel truss support system for steel structure floor support plate, characterized in that: include: The bottom pile (1) is provided with a first vertical support (2) at the top. A limiting plate (5) is provided horizontally at the top of the first vertical support (2). A second vertical support (3) is provided on the inner side of the first vertical support (2). The second vertical support (3) is parallel to the first vertical support (2). A main chord frame (6) is erected at the top of the second vertical support (3). The top of the main chord frame (6) and the bottom wall of the limiting plate (5) are fitted together. A secondary chord frame (7) is provided parallel to the bottom of the main chord frame (6). Multiple sets of inclined web members (8) are installed between the secondary chord frame (7) and the main chord frame (6). A limiting connector (9) is provided at the connection between the inclined web member (8) and the main chord frame (6) and the secondary chord frame (7). The two ends of the inclined web member (8) are respectively connected to the main chord frame (6) and the secondary chord frame (7) through the limiting connector (9) to form a detachable structure.

2. The high stability detachable angle steel truss support system for steel structure floor support plate according to claim 1, characterized in that: The limiting connector (9) includes a beveled part and a horizontal part. The beveled part of the limiting connector (9) is provided with an inner beveled groove (901). An oblique mounting bolt (903) is inserted transversely through the inner beveled groove (901). A horizontal mounting bolt (902) is installed on the horizontal part of the limiting connector (9). The limiting connector (9) is fitted and installed through the inner beveled groove (901) and the oblique web rod (8). The limiting connector (9) is detachably connected through the oblique mounting bolt (903) and the oblique web rod (8).

3. The high stability detachable angle steel truss support system for steel structure floor deck according to claim 2, characterized in that: The diagonal bracing (8) is provided in two sets. Each set of diagonal bracing (8) has a vertically arranged connecting and reinforcing rod (10) in the middle. The upper and lower ends of the connecting and reinforcing rod (10) are fixed to the main chord frame (6) and the secondary chord frame (7) respectively. Side support feet (11) are provided on both sides of the outer wall of the connecting and reinforcing rod (10). A right-angled triangular area is formed between the limiting connector (9), the connecting and reinforcing rod (10) and the main chord frame (6). The side support feet (11) and the connecting and reinforcing rod (10) form a welded integrated structure. The side support feet (11) are fixedly connected to the horizontal mounting bolt (902).

4. The high stability detachable angle steel truss support system for steel structure floor deck according to claim 1, characterized in that: The main chord frame (6) has extension welding rods (12) extending vertically downward on both sides. The extension welding rods (12) are engaged with the inner side of the middle of the first vertical support (2) and the second vertical support (3). Locking crossbars (4) are installed horizontally through the interior of the first vertical support (2), the extension welding rods (12) and the second vertical support (3).

5. The high stability detachable angle steel truss support system for steel structure floor deck according to claim 1, characterized in that: The height of the first vertical support (2) is greater than the height of the second vertical support (3).

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