Drum joint with diaphragm stiffening plate

Abstract

The utility model relates to a drum node with a diaphragm stiffening plate, which comprises a first drum node body, a first sealing plate is arranged at the top end of the first drum node body, a second sealing plate is arranged at the bottom end of the first drum node body, and a node drum rib plate is fixedly connected to the middle of the inner wall of the first drum node body. Linear steel pipes are evenly distributed on the outer wall of the first drum joint body in the circumferential direction, one ends of the linear steel pipes are attached to and fixedly connected with the first drum joint body, and the other ends of the linear steel pipes are fixedly connected to the second drum joint body. The drum joint with the diaphragm stiffening plate has the advantages of improving the structural safety, improving the mounting efficiency, improving the mounting accuracy and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of construction of space thin-shell special-shaped building steel structures, in particular to a drum node with a transverse diaphragm stiffening plate. Background Art

[0002] At present, the development of modern construction technology has promoted the rise of irregular steel dome buildings. The complex space thin shell dome presents a multi-limb tube obliquely connected in the same plane in architectural form. The overall shape is lighter and more beautiful than the double-layer ball node grid or the concentric circle grid shell with primary and secondary rods. The design of irregular domes is difficult, and how to meet the bearing capacity requirements of the nodes in complex parts is the focus of structural design.

[0003] Rods and nodes are important components of complex space thin-shell domes. Whether the structure can bear stress normally, the node form and stiffness are key factors. Different from traditional concentric circle lattice shells or welded spherical lattices, the triangular combination thin-shell dome has six limbs intersecting in the same plane at the intersection of rods. Since there is no distinction between primary and secondary rods, the triangular intersection has higher requirements on the tensile ultimate bearing capacity of the node.

[0004] For this purpose, we have developed a drum node with diaphragm stiffening plate to solve the above problems. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and to provide a drum node with a transverse diaphragm stiffening plate, which has the advantages of improving structural safety, improving installation efficiency and improving installation accuracy.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a drum node with a transverse diaphragm stiffening plate, comprising a first drum node body with a cylindrical structure, a node drum rib plate is fixedly connected to the middle position of the inner wall of the first drum node body, the outer wall of the first drum node body is provided with straight steel pipes evenly distributed around the circumference, one end of the straight steel pipe is attached to and fixedly connected to the first drum node body, and the other end is fixedly connected to the second drum node body, a first sealing plate is provided at the top end of the first drum node body, and a second sealing plate is provided at the bottom end.

[0007] Preferably, the node drum rib plate is a cylindrical structure, and transverse ribs and vertical ribs are alternately arranged at the top of the node drum rib plate, and the node drum rib plate is fixedly connected to the first drum node body on all sides.

[0008] Preferably, a first conical surface is provided around the top of the node drum rib plate, and the first conical surface is fixedly connected to the middle position of the first drum node body through a first fillet weld.

[0009] Preferably, the straight steel pipe is a rectangular steel pipe, and a crescent arc structure is provided at one end of the straight steel pipe, and the crescent arc structure is in contact with the outer wall of the first drum node body.

[0010] Preferably, a second conical surface is provided on each of the four sides of the crescent arc structure, and the second conical surface is fixedly connected to the outer wall of the first drum node body by a second fillet weld.

[0011] Preferably, a third conical surface is provided around the first sealing plate, and the third conical surface is fixedly connected to the first drum node body via a third fillet weld.

[0012] Preferably, a fourth conical surface is provided around the second sealing plate, and the first drum node body is fixedly connected to the fourth conical surface via a fourth fillet weld.

[0013] Preferably, the wall thickness of the first drum node body, the thickness of the first sealing plate and the thickness of the second sealing plate are the same.

[0014] Preferably, the thickness of the node rib plate is the same as the wall thickness of the straight steel pipe.

[0015] Preferably, the structural dimensions of the second drum node body are the same as the structural dimensions of the first drum node body.

[0016] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] The utility model discloses a drum node with transverse diaphragm stiffening plate, which improves the bearing capacity of complex nodes of complex space thin shell dome structures and ensures structural safety while ensuring that the complex space thin shell dome structure is beautiful and lightweight. At the same time, it simplifies the complexity of the drum node. Through welding connection, the drum node material uses seamless steel pipes with built-in transverse diaphragm stiffening plates, and the straight steel pipes and round pipes are directly welded together, which improves installation efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall connection structure of the drum node with transverse diaphragm stiffening plate described in the utility model.

[0019] Figure 2 It is a structural schematic diagram of the drum node with transverse diaphragm stiffening plate described in the utility model.

[0020] Figure 3 For this utility model Figure 2 Cross-sectional view at AA in the middle. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Figures 1 to 3 In the invention, a drum node with a transverse diaphragm stiffening plate includes a first drum node body 10 of a cylindrical structure. The first drum node body 10 is a seamless steel pipe of D299×16mm, with a height of 390mm and a material of Q355B. A node drum rib plate 30 is fixedly connected to the middle position of the inner wall of the first drum node body 10. The outer wall of the first drum node body 10 is provided with a straight steel pipe 20 evenly distributed around the circumference. One end of the straight steel pipe 20 is attached to and fixedly connected to the first drum node body 10, and the other end is fixedly connected to the second drum node body 90, forming a complex space thin shell dome structure. A first sealing plate 40 is provided at the top of the first drum node body 10, and a second sealing plate 50 is provided at the bottom. The wall thickness of the first drum node body 10, the thickness of the first sealing plate 40 and the thickness of the second sealing plate 50 are the same. In order to improve the uniformity of force. The thickness of the node drum rib plate 30 is the same as the wall thickness of the straight steel pipe 20.

[0023] The node drum rib plate 30 is a cylindrical structure with a thickness of 10 mm. The top of the node drum rib plate 30 is staggered with transverse ribs 31 and vertical ribs 32, and is fixedly connected to the first drum node body 10 around. A first cone surface 301 is provided around the top of the node drum rib plate 30, and the first cone surface 301 is fixedly connected to the middle position of the first drum node body 10 through a first fillet weld 301. The transverse ribs 31 and the vertical ribs 32 improve the tensile strength of the straight steel pipe 20.

[0024] The straight steel pipe 20 is a rectangular steel pipe, preferably 6 in number, with specifications of 350×100×10×10 mm. A crescent arc structure 21 is provided at one end of the straight steel pipe 20, and the crescent arc structure 21 is fitted with the outer wall of the first drum node body 10. A second conical surface 211 is provided around the crescent arc structure 21, and the second conical surface 211 is fixedly connected to the outer wall of the first drum node body 10 through a second fillet weld 212.

[0025] The thickness of the first sealing plate 40 is 16 mm, and a third conical surface 401 is provided around the first sealing plate 40, and the third conical surface 401 is fixedly connected to the first drum node body 10 through a third fillet weld 45. The thickness of the second sealing plate 50 is 16 mm, and a fourth conical surface 501 is provided around the second sealing plate 50, and the first drum node body 10 is fixedly connected to the fourth conical surface 501 through a fourth fillet weld 55. The fillet welds of the node drum rib plate 30, the first sealing plate 40 and the second sealing plate 50 are secondary welds (penetration).

[0026] In order to improve the safety of the overall connection of the drum node, the structural dimensions of the second drum node body 90 are the same as those of the first drum node body 10 .

[0027] This design is a welded drum node, which does not require bolt connection. It increases the welding surface of the rod and the round tube. Each first drum node body 10 has six straight steel pipes 20 evenly distributed along the circumference, and the two ends of each straight steel pipe 20 are respectively welded to the outer wall of the two first drum node bodies. A transverse node drum rib plate 30 is set at the position of the rectangular steel pipe inside the drum node, which can effectively improve the tensile ultimate bearing capacity of the node, increase the number of connected rectangular steel pipes, and improve the force performance of the node. Under the premise of ensuring that the complex space thin shell dome structure is beautiful and lightweight, the bearing capacity of the complex nodes of the complex space thin shell dome structure is improved, and the structural safety is guaranteed. At the same time, the complexity of the drum node is simplified, and welding connection is used. The drum node material uses a seamless steel pipe with a built-in node drum rib plate, and the rectangular steel pipe and the seamless steel pipe are directly welded. Improve the installation efficiency and accuracy.

[0028] The above are only specific application examples of the utility model, and do not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.

Claims

1. A drum node with a transverse diaphragm stiffening plate, characterized in that: The invention comprises a first drum node body (10) of a cylindrical structure, a node drum rib plate (30) is fixedly connected to the middle position of the inner wall of the first drum node body (10), the outer wall of the first drum node body (10) is provided with straight steel pipes (20) evenly distributed around the circumference, one end of the straight steel pipe (20) is attached to and fixedly connected to the first drum node body (10), and the other end is fixedly connected to the second drum node body (90), a first sealing plate (40) is provided at the top end of the first drum node body (10), and a second sealing plate (50) is provided at the bottom end.

2. The drum node with diaphragm stiffening plate according to claim 1 is characterized in that: The node drum rib plate (30) is a cylindrical structure, and transverse ribs (31) and vertical ribs (32) are alternately arranged at the top of the node drum rib plate (30), and the node drum rib plate (30) is fixedly connected to the first drum node body (10) at all sides.

3. The drum node with diaphragm stiffening plate according to claim 2 is characterized in that: A first conical surface (301) is provided around the top of the node drum rib plate (30), and the first conical surface (301) is fixedly connected to the middle position of the first drum node body (10) through a first fillet weld (301).

4. The drum node with diaphragm stiffening plate according to claim 1 is characterized in that: The straight steel pipe (20) is a rectangular steel pipe. A crescent arc structure (21) is provided at one end of the straight steel pipe (20). The crescent arc structure (21) is fitted with the outer wall of the first drum node body (10).

5. The drum node with diaphragm stiffening plate according to claim 4 is characterized in that: A second conical surface (211) is provided on each of the four sides of the crescent arc structure (21), and the second conical surface (211) is fixedly connected to the outer wall of the first drum node body (10) via a second fillet weld (212).

6. The drum node with diaphragm stiffening plate according to claim 1 is characterized in that: A third conical surface (401) is provided around the first sealing plate (40), and the third conical surface (401) is fixedly connected to the first drum node body (10) via a third fillet weld (45).

7. The plate-type drum node with transverse diaphragm reinforcement according to claim 1 is characterized in that: A fourth conical surface (501) is provided around the second sealing plate (50), and the first drum node body (10) is fixedly connected to the fourth conical surface (501) via a fourth fillet weld (55).

8. The drum node with diaphragm stiffening plate according to claim 1 is characterized in that: The wall thickness of the first drum node body (10), the thickness of the first sealing plate (40) and the thickness of the second sealing plate (50) are the same.

9. The plate-type drum node with transverse diaphragm reinforcement according to claim 8 is characterized in that: The thickness of the node rib plate (30) is the same as the wall thickness of the straight steel pipe (20).

10. The drum node with diaphragm stiffening plate according to claim 1 is characterized in that: The structural dimensions of the second drum node body (90) are the same as the structural dimensions of the first drum node body (10).

Images