Steel rib truss structure

Abstract

The utility model discloses a steel rib truss structure which comprises a steel rib truss and a stand column. The steel rib truss comprises an upper chord member, a lower chord member and a web member; the upper chord member is a steel-reinforced concrete member; the lower chord is a steel pipe or profile steel; the web members are profile steel or steel pipes; the web members comprise straight web members and / or diagonal web members; the upper chord comprises an upper chord steel rib and upper chord concrete; the upper chord steel rib comprises a web plate and a flange; the upper chord steel rib consists of profile steel or a steel plate; the upper chord steel rib is H-shaped or groove-shaped; the web is wrapped by upper chord concrete; the upper chord concrete is filled between the flanges; the steel rib truss is connected with the stand column. The stand columns are arranged at intervals. The utility model has the advantages of large lateral stiffness, small deformation and good durability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to structure technical field, and particularly relates to a steel skeleton truss structure. BACKGROUND

[0002] Photovoltaic plays an important role in China's energy construction. The solar photovoltaic support is a special support designed for placing, installing and fixing solar panels in a solar photovoltaic power generation system. The support material is aluminum alloy, carbon steel and stainless steel. When the photovoltaic panel span is large, a steel truss is usually used to support the photovoltaic panel, and a steel pipe column is usually used as a stand column. The steel truss structure needs to bear the weight of self weight, photovoltaic panel, purlin, wind load and temperature action, earthquake action and the like. The structure has the defects of small rigidity and large deformation. CONTENT OF THE UTILITY MODEL

[0003] The utility model provides a steel skeleton truss structure, realizes the goal of improving structural rigidity and reducing deformation.

[0004] In order to realize the above object, the utility model adopts the following technical scheme.

[0005] A steel skeleton truss structure, the steel skeleton truss structure includes a steel skeleton truss and a stand column; the steel skeleton truss includes a top chord, a bottom chord and a web; the top chord is a steel reinforced concrete component; the bottom chord is a steel pipe or a sectional steel; the web is a sectional steel or a steel pipe; the web includes a straight web and / or an inclined web; the top chord includes a top chord steel skeleton and top chord concrete; the top chord steel skeleton includes a web plate and a flange; the top chord steel skeleton is composed of a sectional steel or a steel plate; the top chord steel skeleton is H-shaped or channel-shaped; the top chord concrete wraps the web plate; the top chord concrete is filled between the flanges; the steel skeleton truss is connected with the stand column; the stand column is not less than two and is arranged at intervals.

[0006] Preferably, the steel skeleton truss includes a connecting piece; the connecting piece includes an upper connecting piece and a lower connecting piece; the top chord is fixedly connected with the upper connecting piece; the bottom chord is fixedly connected with the lower connecting piece; the web is fixedly connected with the upper connecting piece; and the web is fixedly connected with the lower connecting piece.

[0007] Preferably, a shear-resistant piece is fixedly connected with the top chord steel skeleton; a steel bar is arranged in the top chord concrete; the steel bar includes a transverse steel bar and / or a longitudinal steel bar; and the transverse steel bar is connected with the flange.

[0008] Preferably, end plates are arranged on both sides of the top chord steel skeleton; and the end plates are fixedly connected with the top chord steel skeleton.

[0009] Preferably, the top chord concrete is located in the middle part of the top chord steel skeleton, and the top chord concrete is not arranged at both ends of the top chord steel skeleton.

[0010] Preferably, the lower chord includes a lower chord steel skeleton and a lower chord concrete; the lower chord steel skeleton includes a web and flanges; the lower chord steel skeleton is composed of a section steel or a steel plate; the lower chord steel skeleton is H-shaped or channel-shaped; the lower chord concrete wraps the web; and the lower chord concrete is filled between the flanges.

[0011] Preferably, the connecting piece is a steel plate or a section steel.

[0012] Preferably, the column is a steel column or a concrete-filled steel tube column or a steel reinforced concrete column or a precast concrete column; and the connection between the column and the steel skeleton truss is movable.

[0013] Compared with the prior art, the utility model has the following characteristics and beneficial effects.

[0014] 1. The truss is a steel skeleton truss, which increases the in-plane stiffness of the truss and further increases the lateral stiffness of the structure, reduces the vertical deformation of the truss and the lateral deformation of the structure, effectively reduces the anticorrosion area, reduces the anticorrosion cost, and improves the durability.

[0015] 2. The web and the chord are connected by the connecting piece, which facilitates construction.

[0016] 3. The connection between the steel skeleton truss and the column is movable, which can release the temperature stress, reduce the stress of the truss and the column, and reduce the lateral deformation.

[0017] 4. The steel skeleton is provided with a shear-resistant piece or an end piece, which can make the concrete and the steel skeleton act together.

[0018] 5. The concrete is provided with a steel bar, which makes the steel skeleton and the concrete act together better. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described in detail below in combination with the drawings.

[0020] Figure 1 Steel skeleton truss elevation schematic Figure 1 .

[0021] Figure 2 Steel skeleton truss elevation schematic Figure 2 .

[0022] Figure 3 Steel skeleton truss upper chord sectional schematic Figure 1 .

[0023] Figure 4 Steel skeleton truss upper chord sectional schematic Figure 2 .

[0024] Figure 5 Steel skeleton truss upper chord sectional schematic Figure 3 .

[0025] Figure 6 Steel skeleton truss lower chord sectional schematicFigure 1 .

[0026] Figure 7 Steel skeleton truss lower chord section schematic Figure 2 .

[0027] Reference signs: A-steel skeleton truss, B-column, C-connector, C.1-upper connector, C.2-lower connector, 1-upper chord, 1.1-upper chord steel skeleton, 1.1.1-web, 1.1.2-flange, 1.2-upper chord concrete, 2-lower chord, 2.1-lower chord steel skeleton, 2.2-lower chord concrete, 3-web member, 4-shear member, 5-reinforcing steel, 5.1-transverse reinforcing steel, 5.2-longitudinal reinforcing steel, 6-end plate. DETAILED DESCRIPTION

[0028] In order to better understand the purpose, technical scheme and function of the utility model, the utility model will be described in further detail below in conjunction with the drawings. Herein, the illustrative embodiments of the utility model and the description thereof are used to explain the utility model, but are not as a limitation on the utility model.

[0029] In the description of the utility model, it is to be understood that the term "comprise / contain", "consist of" or any other variant thereof is intended to cover non-exclusive inclusion, so that the product, device, process or method including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent to such product, device, process or method. Without more limitation, the elements defined by the statement "comprise / contain", "consist of" do not exclude the presence of other identical elements in the product, device, process or method including the elements.

[0030] In the utility model, unless otherwise explicitly specified and limited, the term "fixed connection" should be understood broadly, for example: it can be sleeve connection, it can be lap joint, it can be welding, it can be bolt connection, it can be a combination of the above connections; the terms "installation", "connection", "connection" and other terms should be understood broadly, for example: it can be fixed connection, it can be detachable connection, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two components; the term "movable connection" should be understood broadly, for example: it can be bolted connection, it can be sliding connection, it can be ball support connection, it can be a combination of the above connections; the term "continuous reinforcing steel" means that the reinforcing steel is continuous without being disconnected, or the reinforcing steel is disconnected but the disconnected reinforcing steel is fixedly connected. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] The implementation of the utility model is described in detail below with the preferred embodiments in combination with the drawings.

[0032] As Figure 1 , Figure 3 , Figure 4 and Figure 5 shown, a steel skeleton truss structure, the steel skeleton truss structure includes steel skeleton truss A and stand B;Steel skeleton truss A includes upper chord 1, lower chord 2, web 3, upper chord 1 is steel concrete component, lower chord 2 is steel pipe or profile steel, web 3 is profile steel or steel pipe, web 3 includes straight web 3.1 and / or inclined web 3.2, upper chord 1 includes upper chord steel skeleton 1.1, upper chord concrete 1.2, upper chord steel skeleton 1.1 includes web 1.1.1 and flange 1.1.2, upper chord steel skeleton 1.1 is composed of profile steel or steel plate, upper chord steel skeleton 1.1 is H-shaped or channel-shaped, upper chord concrete 1.2 covers web 1.1.1, upper chord concrete 1.2 fills between flange 1.1.2, steel skeleton truss A is connected with stand B, stand B is not less than 2, interval arrangement.

[0033] The effect of the above technical measures is that: the steel skeleton of the upper chord forms a steel concrete component with the concrete, increases the bearing capacity and stiffness of the compression side, improves the stiffness of the truss, reduces the vertical deformation of the truss, and increases the overall stiffness of the truss structure, which can reduce lateral deformation;The concrete covers the web and fills between the flanges, effectively preventing the corrosion of the web and improving the durability of the web. The concrete filling between the flanges effectively prevents the corrosion of the flanges and improves the durability of the flanges. The external concrete can absorb a certain amount of heat, reduce the temperature change of the steel skeleton, and further reduce the temperature stress;Increase the weight of the truss, so that it can resist the upward suction force generated by the wind load under extreme conditions under the action of wind, and reduce the stress and deformation of the truss.

[0034] In specific implementation, steel skeleton truss A includes connecting piece C, connecting piece C includes upper connecting piece C.1 and lower connecting piece C.2, upper chord 1 is welded with upper connecting piece C.1, lower chord 2 is welded with lower connecting piece C.2. Web 3 is welded or bolted with upper connecting piece C.1, web 3 is welded or bolted with lower connecting piece C.2. Effect: connected through node plate, convenient for manufacturing and installation. The web and the connecting piece are welded, which is beneficial to improve the rigid joint and the node stiffness.

[0035] In specific implementation, web 3 is bolted with upper connecting piece C.1, and web 3 is bolted with lower connecting piece C.2.

[0036] Effect: the web and the connecting piece are bolted, which is convenient for on-site connection, reduces the amount of on-site welding and secondary stress.

[0037] In specific implementation, the shear-resisting member 4 is welded with the upper chord steel skeleton 1.1 as a whole; the shear-resisting member is a stud, a section steel or a steel bar. The function is to make the concrete and the upper chord steel skeleton work together.

[0038] In specific implementation, the cross-sectional dimension of the upper chord steel skeleton 1.1 is not greater than 350 mm and not less than 60 mm. The function is to avoid too large or too small rigidity.

[0039] In specific implementation, the thickness of the web 1.1.1 of the upper chord steel skeleton 1.1 is 2 mm to 10 mm, and the thickness of the flange 1.1.2 is 3 mm to 16 mm. The function is to realize better bearing capacity and rigidity and improve the corrosion resistance.

[0040] In specific implementation, the upper chord concrete 1.2 is provided with a steel bar 5, which includes a transverse steel bar 5.1 and / or a longitudinal steel bar 5.2, and the transverse steel bar 5.1 is connected with the flange 1.1.2. The function is to reduce the shrinkage and creep of the concrete, improve the ductility of the steel reinforced concrete member, and improve the binding force with the steel skeleton.

[0041] In specific implementation, the upper chord steel skeleton 1.1 is provided with an end plate 6 on both sides, and the end plate 6 is welded with the upper chord steel skeleton 1.1. The function is that the end plate makes the concrete and the steel skeleton work together.

[0042] In specific implementation, the upper chord concrete 1.2 is located in the middle part of the upper chord steel skeleton 1.1, and there is no concrete 1.2 at both ends of the upper chord steel skeleton 1.1. The function is to only increase the rigidity of the middle part and reduce the weight of both sides.

[0043] In specific implementation, the middle part range is 5% to 95% of the length of the upper chord beam, preferably 15% to 75%. The function is to improve the rigidity and reduce the weight of the construction and both sides.

[0044] As shown in FIGS. Figure 2 , Figure 6 and Figure 7 , in specific implementation, the lower chord beam 2 includes a lower chord steel skeleton 2.1 and a lower chord concrete 2.2, the lower chord steel skeleton 2.1 includes a web 2.1.1 and a flange 2.1.2, the lower chord steel skeleton 2.1 is composed of a section steel or a steel plate, the lower chord steel skeleton 2.1 is H-shaped or channel-shaped, the lower chord concrete 2.2 wraps the web 2.1.1, and the lower chord concrete 2.2 is filled between the flanges 2.1.2.

[0045] Effects: The steel bones of the lower chord and the concrete form a steel-reinforced concrete component, which increases the bearing capacity and stiffness of the compression side, improves the stiffness of the truss, reduces the vertical deformation of the truss, and increases the overall stiffness of the truss structure, thereby reducing the lateral deformation; the concrete covers the web and fills the flanges, effectively preventing the corrosion of the web and improving the durability of the web; the concrete filling the flanges effectively prevents the corrosion of the flanges, thereby improving the durability of the flanges; the external concrete can absorb a certain amount of heat, reduce the temperature change of the steel bones, and further reduce the temperature stress; the increased weight of the truss can resist the upward suction force generated by the wind load in extreme conditions under the action of wind, thereby reducing the stress and deformation of the truss.

[0046] In specific implementation, the non-concrete covered part of the upper chord steel bone 1.1 and / or the lower chord steel bone 2.1 is covered with aluminum or zinc. Effects: improve the overall corrosion resistance.

[0047] In specific implementation, there is anticorrosive paint between the concrete and the flange or web of the upper chord steel bone 1.1 and / or the lower chord steel bone 2.1. Effects: improve corrosion resistance.

[0048] In specific implementation, the connecting piece C is a steel plate or a profile steel. The steel plate is arranged and fixedly connected with the web of the upper chord or the lower chord. The web or flange of the profile steel is arranged and fixedly connected with the web of the upper chord or the lower chord. Effects: directly transmit internal force, prevent or reduce the out-of-plane stress of the connecting piece.

[0049] In specific implementation, the column B is a steel column or a concrete-filled steel tube column or a steel-reinforced concrete column or a prefabricated concrete column.

[0050] In specific implementation, the column B is connected with the steel bone truss A through a connecting piece or directly connected.

[0051] In specific implementation, the column B and the steel bone truss A are connected by a diagonal member, which is a steel member, and the diagonal member is arranged on one side or both sides. Effects: further improve the lateral stiffness of the structure and reduce the lateral deformation; reduce the distance between the supports of the steel bone truss and reduce the deformation of the steel bone truss.

[0052] In specific implementation, the connection between the column B and the steel bone truss A is movable. Effects: reduce the temperature stress and deformation of the structure.

[0053] The above embodiments only express several implementation manners of the patent, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent should be subject to the appended claims.

Claims

1. A steel truss structure, characterized in that: The steel truss structure includes a steel truss (A) and columns (B); the steel truss (A) includes an upper chord (1), a lower chord (2), and web members (3); the upper chord (1) is a steel-reinforced concrete member; the lower chord (2) is a steel pipe or structural steel; the web members (3) are structural steel or steel pipes; the web members (3) include straight web members (3.1) and / or diagonal web members (3.2); the upper chord (1) includes an upper chord steel frame (1.1) and an upper chord concrete frame (1.2). The upper chord steel frame (1.1) includes a web (1.1.1) and flanges (1.1.2); the upper chord steel frame (1) is composed of shaped steel or steel plates; the upper chord steel frame (1.1) is H-shaped or channel-shaped; the upper chord concrete (1.2) wraps the web (1.1.1); the upper chord concrete (1.2) fills the space between the flanges (1.1.2); the steel truss (A) is connected to the columns (B); there are no fewer than two columns (B) arranged at intervals.

2. The steel truss structure according to claim 1, characterized in that: The steel truss (A) includes connectors (C); the connectors (C) include an upper connector (C.1) and a lower connector (C.2); the upper chord (1) is fixedly connected to the upper connector (C.1); the lower chord (2) is fixedly connected to the lower connector (C.2); the web member (3) is fixedly connected to the upper connector (C.1); and the web member (3) is fixedly connected to the lower connector (C.2).

3. The steel truss structure according to claim 1, characterized in that: The shear member (4) is fixedly connected to the upper chord steel frame (1.1); the upper chord concrete (1.2) is provided with reinforcing bars (5); the reinforcing bars (5) include transverse reinforcing bars (5.1) and / or longitudinal reinforcing bars (5.2); the transverse reinforcing bars (5.1) are connected to the flange (1.1.2).

4. The steel truss structure according to claim 3, characterized in that: The upper chord steel frame (1.1) has end plates (6) on both sides; the end plates (6) are fixedly connected to the upper chord steel frame (1.1).

5. The steel truss structure according to claim 1, characterized in that: The top chord concrete (1.2) is located in the middle of the top chord steel frame (1.1), and there is no top chord concrete (1.2) at both ends of the top chord steel frame (1.1).

6. The steel truss structure according to claim 1, characterized in that: The lower chord (2) includes a lower chord steel frame (2.1) and a lower chord concrete frame (2.2); the lower chord steel frame (2.1) includes a web (2.1.1) and flanges (2.1.2); the lower chord steel frame (2.1) is composed of shaped steel or steel plates; the lower chord steel frame (2.1) is H-shaped or channel-shaped; the lower chord concrete frame (2.2) wraps around the web (2.1.1); the lower chord concrete frame (2.2) fills the space between the flanges (2.1.2).

7. The steel truss structure according to claim 2, characterized in that: The connector (C) is a steel plate or structural steel.

8. The steel truss structure according to claim 1, characterized in that: The column (B) is a steel column, a steel-concrete composite column, a steel-reinforced concrete column, or a precast concrete column; the connection between the column (B) and the steel truss (A) is movable.

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