A truss unit lattice shell structure

Abstract

The utility model provides a truss unit lattice shell structure. The truss unit lattice shell structure includes a connecting ball and a truss, the connecting ball is provided with a plurality of bolts, each bolt is connected to the truss, the truss connects at least two adjacent connecting balls, so that a grid is formed between the trusses, and the plurality of bolts are detachably hinged on the connecting ball, the plurality of bolts are located on the same spherical plane, and the positions of the plurality of bolts on the spherical plane are adjustable. The utility model increases the adaptability range of the lattice shell, optimizes the rod connection method, increases the factory processing ratio, and reduces the number and difficulty of on-site construction.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, in particular to a truss unit type lattice shell structure. Background Art

[0002] In the building arch, the truss unit type lattice shell structure is generally used. The existing lattice shell structure has single layer and double layer, among which the single layer means that the truss is a single solid web bar, the number of solid web bars is multiple, and each solid web bar is connected by a connection node. It is suitable for smaller spans.

[0003] The double layer is composed of an upper chord, a web member and a lower chord connected by nodes according to a certain rule to form a double-layer grid shell, which can adapt to larger spans.

[0004] The connection structure of the single-layer lattice shell is rigid connection, which makes on-site construction difficult. The double-layer lattice shell has many connection nodes and a large number of construction works because the chords, webs and lower chords are all connected through connection nodes. Utility Model Content

[0005] The utility model aims to provide a truss unit type lattice shell structure, which increases the adaptability range of the lattice shell, optimizes the rod connection mode, increases the factory processing ratio, and reduces the number and difficulty of on-site construction.

[0006] The technical solution of the utility model is: a truss unit lattice shell structure, including a connecting ball and a truss, the connecting ball is provided with a plurality of bolts, each bolt is connected to the truss, the truss connects at least two adjacent connecting balls to form a grid between the trusses, a plurality of the bolts are detachably hinged on the connecting ball, a plurality of the bolts are located on the same spherical plane, and the positions of the plurality of the bolts on the spherical plane are adjustable.

[0007] Preferably, the truss is a single-rod structure, and the grid is a triangle.

[0008] Preferably, six bolts are provided on the connecting ball, and the truss connects two adjacent connecting balls.

[0009] Preferably, the truss has six rod ends, and the six rod ends are all connected to the connecting balls. The same connecting ball is connected to a corresponding rod end on the six trusses, and the truss connects four adjacent connecting balls.

[0010] Preferably, a first web is connected between two connecting balls located on the same vertical plane.

[0011] Preferably, the truss comprises an upper chord, a lower chord, a second web member, a third web member, a fourth web member and a fifth web member, and the upper chord and the lower chord are arranged in parallel;

[0012] Among the plurality of connecting balls, some of the connecting balls are used to connect the ends of adjacent upper chord rods, and another part of the connecting balls are used to connect the ends of adjacent lower chord rods. Two adjacent upper chord rods are connected to the same connecting ball, and two adjacent lower chord rods are connected to the same connecting ball.

[0013] One end of the second web member is connected to a connecting ball at one end of the lower chord, one end of the fifth web member is connected to a connecting ball at the other end of the lower chord, the other end of the second web member and the other end of the fifth web member are both fixed to the upper chord, and both ends of the third web member and the two ends of the fourth web member are respectively fixed to the upper chord and the lower chord.

[0014] Preferably, the positions of the second web member and the third web member on the upper chord are overlapped, the positions of the third web member and the fourth web member on the lower chord are overlapped, and the positions of the fourth web member and the fifth web member on the upper chord are overlapped.

[0015] Preferably, the second web member and the fourth web member are inclined in a first direction, the third web member and the fifth web member are inclined in a second direction, the first direction and the second direction are on the same plane and opposite, and the angle formed by the first direction and the second direction is an acute angle.

[0016] Preferably, the length of the upper chord is longer than that of the lower chord.

[0017] Preferably, the connecting ball comprises an upper chord ball and a lower chord ball, and two ends of one length side of the quadrilateral truss are connected to the upper chord ball, and two ends of another length side are connected to the lower chord ball.

[0018] Compared with the related art, the beneficial effects of the utility model are:

[0019] 1. The connecting ball is provided with a plurality of bolts which can be adjusted on the spherical surface. Each bolt is connected to the truss. The rods are in the form of truss units, which reduces the grid units, increases the factory processing ratio, reduces the number of on-site construction, and the connection nodes between the truss units are bolt ball nodes, which reduces the construction difficulty.

[0020] 2. The double-layer truss is connected by upper and lower chords and five webs. The webs and chords are welded, which not only improves the overall rigidity of the structure and increases the adaptability of the span, but also reduces the number of connection nodes (bolts) and the amount of on-site construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a truss unit type lattice shell structure according to an embodiment of the utility model;

[0022] Figure 2 It is a side view of a truss unit type lattice shell structure according to an embodiment of the utility model.

[0023] In the attached figure: 1. connecting ball; 11. upper chord ball; 12. lower chord ball; 13. first web member; 14. bolt; 2. truss; 21. upper chord member; 22. lower chord member; 23. second web member; 24. third web member; 25. fourth web member; 26. fifth web member; 3. grid. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0025] like Figure 1 , Figure 2 As shown, a truss unit lattice shell structure of the present embodiment includes a connecting ball 1 and a truss 2, wherein the connecting ball 1 is provided with a plurality of bolts 14, each bolt 14 is connected to the truss 2, the truss 2 connects at least two adjacent connecting balls 1 to form a grid 3 between the trusses 2, and the plurality of bolts 14 are detachably hinged to the connecting ball 1, the plurality of bolts 14 are located on the same spherical plane, and the positions of the plurality of bolts 14 on the spherical plane are adjustable.

[0026] The connecting ball 1 comprises an upper chord ball 11 and a lower chord ball 12. The upper chord ball 11 is provided with three bolts 14, and the lower chord ball 12 is provided with five bolts 14. The upper chord ball 11 and the lower chord ball 12 on the same vertical plane are connected via a first web bar 13.

[0027] The truss 2 includes an upper chord 21 , a lower chord 22 , a second web member 23 , a third web member 24 , a fourth web member 25 and a fifth web member 26 . The upper chord 21 and the lower chord 22 are arranged in parallel.

[0028] One end of the second web member 23 and one end of the fifth web member 26 are fixed to the upper chord 21, and the other end of the second web member 23 and the other end of the fifth web member 26 are open connection ends. Both ends of the third web member 24 and both ends of the fourth web member 25 are fixed to the upper chord 21 and the lower chord 22 respectively.

[0029] The second web member 23 and the third web member 24 overlap in position on the upper chord 21 , the third web member 24 and the fourth web member 25 overlap in position on the lower chord 22 , and the fourth web member 25 and the fifth web member 26 overlap in position on the upper chord 21 .

[0030] The second web member 23 and the fourth web member 25 are inclined in a first direction, and the third web member 24 and the fifth web member 26 are inclined in a second direction. The first direction and the second direction are on the same plane and opposite to each other, and an angle formed by the first direction and the second direction is an acute angle.

[0031] The length of the upper chord 21 is longer than that of the lower chord 22, which is beneficial for the lattice shell to be in an arched shape after installation.

[0032] The above structure of the truss 2 can be mass-produced in a factory. The above open connection end means that the end is not connected to any structure when it is manufactured and is assembled on site.

[0033] The open connection end of the second web member 23 of one truss 2 and the open connection end of the fifth web member 26 of another truss 2 are connected to the same lower chord ball 12. One end of the upper chord member 21 of one truss 2 and the other end of the upper chord member 21 of another truss 2 are connected to the same upper chord ball 11. One end of the lower chord member 22 of one truss 2 and the other end of the lower chord member 22 of another truss 2 are connected to the same lower chord ball 12.

[0034] According to the above method, multiple trusses 2 are connected end to end to form a complete truss unit lattice shell structure.

[0035] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A truss unit lattice shell structure, characterized in that: The invention comprises a connecting ball (1) and a truss (2), wherein the connecting ball (1) is provided with a plurality of bolts (14), each bolt (14) is connected to the truss (2), the truss (2) connects at least two adjacent connecting balls (1) to form a grid (3) between the trusses (2), the plurality of bolts (14) are detachably hinged to the connecting ball (1), the plurality of bolts (14) are located on the same spherical plane, and the positions of the plurality of bolts (14) on the spherical plane are adjustable.

2. The truss unit type lattice shell structure according to claim 1, characterized in that: The truss (2) is a single-rod structure, and the grid (3) is a triangle.

3. The truss unit type lattice shell structure according to claim 1 or 2, characterized in that: The connection ball (1) is provided with a plurality of bolts (14), and the truss (2) connects two adjacent connection balls (1).

4. The truss unit type lattice shell structure according to claim 1, characterized in that: The truss (2) has six rod ends, each of which is connected to a connecting ball (1), and the same connecting ball (1) is connected to a corresponding rod end on two adjacent trusses (2). The truss (2) connects four adjacent connecting balls (1).

5. The truss unit type lattice shell structure according to claim 4, characterized in that: A first web bar (13) is connected between two connecting balls (1) located on the same vertical plane.

6. The truss unit type lattice shell structure according to claim 4, characterized in that: The truss comprises an upper chord (21), a lower chord (22), a second web member (23), a third web member (24), a fourth web member (25) and a fifth web member (26), wherein the upper chord and the lower chord are arranged in parallel; Among the plurality of connecting balls (1), a portion of the connecting balls (1) are used to connect the ends of adjacent upper chord rods (21), and another portion of the connecting balls (1) are used to connect the ends of adjacent lower chord rods (22); two adjacent upper chord rods (21) are connected to the same connecting ball (1), and two adjacent lower chord rods (22) are connected to the same connecting ball (1); One end of the second web member (23) is connected to a connecting ball (1) at one end of a lower chord member (22), one end of the fifth web member (26) is connected to a connecting ball (1) at the other end of the lower chord member (22), the other end of the second web member (23) and the other end of the fifth web member (26) are both fixed to an upper chord member (21), and both ends of the third web member (24) and the second end of the fourth web member (25) are respectively fixed to the upper chord member (21) and the lower chord member (22).

7. The truss unit type lattice shell structure according to claim 6, characterized in that: The positions of the second web member (23) and the third web member (24) on the upper chord member (21) coincide with each other, the positions of the third web member (24) and the fourth web member (25) on the lower chord member (22) coincide with each other, and the positions of the fourth web member (25) and the fifth web member (26) on the upper chord member (21) coincide with each other.

8. The truss unit type lattice shell structure according to claim 6, characterized in that: The second web member (23) and the fourth web member (25) are inclined in a first direction, and the third web member (24) and the fifth web member (26) are inclined in a second direction, the first direction and the second direction are on the same plane and opposite to each other, and the angle formed by the first direction and the second direction is an acute angle.

9. The truss unit type lattice shell structure according to claim 6, characterized in that: The length of the upper chord (21) is longer than the length of the lower chord (22).

10. The truss unit type lattice shell structure according to claim 4, characterized in that: The connecting ball (1) comprises an upper chord ball (11) and a lower chord ball (12); two ends of one length side of the quadrilateral truss (2) are connected to the upper chord ball (11), and two ends of another length side are connected to the lower chord ball (12).

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