Novel truss structure with node rings

Abstract

The invention discloses a novel truss structure with node rings. The novel truss structure comprises an upper truss structure and a double-row column supporting structure. The upper truss structure comprises an upper chord member, a lower chord member, inclined legs, transverse pull rods, web members and node rings; the inclined legs are located between the upper chords and the lower chords, one ends of the inclined legs are connected to the joints of the lower chords and the stand columns, and the other ends of the inclined legs are connected to one fourth or three quarters of the upper chords on the same side; the transverse pull rod is located between the upper chord and the lower chord, the upper end is connected to the joint of the upper chord and the inclined leg, and the lower end is connected to the middle top of the lower chord; the three node rings are respectively arranged at the joint points of the upper chord, the inclined legs, the transverse pull rods and the web members on the left side and the right side of the upper truss structure in a surrounding manner and the joint points of the transverse pull rods, the web members and the lower chord members in the middle of the upper truss structure in a surrounding manner. A traditional steel structure factory building beam is replaced by the novel truss with the node ring, and the problems that a traditional beam is insufficient in bearing capacity and large in deformation can be effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic support structures, and particularly relates to a novel truss structure with a node ring. Background Art

[0003] Photovoltaic power stations are mainly divided into two categories: centralized power stations and distributed power stations. Since the installation of photovoltaic power stations has the characteristic of high flexibility compared with wind power, compared with traditional large-scale wind power plants, photovoltaic power stations can not only be installed on a large scale in a centralized manner, but also be distributed in multiple scenarios such as the surface of buildings and outdoors. A distributed photovoltaic power station refers to a small and medium-capacity photovoltaic power station installed on the roofs or surrounding open spaces of buildings such as factories, office buildings, and residential houses. The power station is connected to the grid on the user side, self-consumes the electricity generated, and feeds the surplus electricity into the grid. Compared with centralized photovoltaic power stations, distributed photovoltaics have the advantages of not occupying land resources, reducing transmission and distribution network losses, and consuming electricity nearby. Due to the higher electricity price for electricity consumption than the electricity price for power generation, distributed photovoltaics usually have better economic efficiency. Due to the aforementioned advantages, the application of distributed photovoltaics has great growth potential.

[0004] As a pollution-free, low-carbon emission, and renewable power generation method, solar photovoltaic power generation devices have received extensive attention and application in society; moreover, the roofs of industrial factories are large in scale, simple in structure, spacious and flat, and have rich solar energy resources, making them one of the most suitable building types for photovoltaic integration construction. Therefore, more and more steel structure industrial factory roofs have started to install photovoltaic panels to supply power to the factory. However, the existing steel structure factories have a large amount of steel used in the roof design, insufficient bearing capacity, and excessive deformation when designed. Therefore, reducing the amount of steel used, improving the structural bearing capacity, and reducing the deformation of the structure under the action of loads are the key ways to solve the problem after installing photovoltaic panels on industrial factories.

[0005] With the continuous expansion of the scale of distributed photovoltaic construction in factories with significant economic and social benefits, the structural defects existing in the original design of factory photovoltaic structures have become increasingly prominent. The traditional steel structure factory photovoltaic structure mainly consists of columns, beams, tie rods, and purlins, and is reinforced by arranging a certain amount of scissors beams; the structural members basically use I-beams or steel pipes. After installing photovoltaic panels above the carport, the force system of the carport support changes, resulting in insufficient bearing capacity of the beam and deformation, so that under the same amount of steel used, the height and column spacing of the steel structure factory are restricted, increasing the construction cost of the steel structure factory. Summary of the Invention

[0006] The purpose of the invention is to provide a novel truss structure with a node ring in view of the deficiencies existing in the traditional steel structure factory building.

[0007] In order to achieve the above purpose, the technical solution adopted by the invention is as follows: A novel truss structure with node rings, comprising an upper truss structure and a double-row column support structure; the double-row column support structure is provided with more than four columns, which are arranged at the left and right ends of the upper truss structure; the upper truss structure includes an upper chord, a lower chord, inclined legs, transverse tie rods, web members and node rings; the upper chord is fixedly connected to the tops of the columns; the end of the lower chord is fixedly connected to the upper part of the columns; the inclined legs are located between the upper chord and the lower chord, and one end is connected to the intersection of the lower chord and the column, and the other end is connected to the quarter or three-quarters of the same-side upper chord; the transverse tie rod is located between the upper chord and the lower chord, and the upper end is connected to the intersection of the upper chord and the inclined leg, and the lower end is connected to the middle top of the lower chord; three node rings are provided, which are respectively arranged around the intersection points of the upper chord, inclined legs, transverse tie rods and web members on the left and right sides of the upper truss structure and the intersection points of the transverse tie rods, web members and lower chord in the middle of the upper truss structure.

[0008] In the present invention, the cross beam of the traditional steel structure workshop is replaced by a novel truss with node rings. The novel truss has better mechanical properties by reasonably arranging the inclined legs, transverse connecting rods and node rings; it can not only increase the span of the steel structure workshop with the same steel consumption, but also endow the building with a more unique shape and visual impact. When the novel truss structure bears vertical loads, in addition to the axial component force transmission effect of the inclined legs, the inclined legs are arranged inside the truss, so that the workshop has more clear space. By adding node rings to the novel truss structure, the stress concentration generated by vertical loads at the ridge and columns can be eliminated specifically, making the force distribution of the overall structure more uniform and reasonable. Compared with the traditional portal beam structure, it can adapt to a larger load scale.

[0009] The upper truss structure is formed by connecting corresponding members through nodes, which can effectively transfer the load to the foundation. It can bear large vertical loads and horizontal loads, and is suitable for steel structure workshops with large spans and high spaces, and can meet the space requirements for the installation of large equipment and production operations in the workshop.

[0010] In the present invention, the upper chord projects out of the column by an appropriate distance.

[0011] The present invention further explains that the web members include middle vertical web members and diagonal web members; three middle vertical web members are provided in each upper truss structure, and are respectively arranged vertically at the quarter, half and three-quarters between the upper chord and the lower chord; one end of the diagonal web member is connected to the intersection of the lower chord and the column, and the other end is connected to the end of the upper chord that projects out of the column.

[0012] The present invention further states that the node ring is arranged around the following intersections: the intersection of the column and the upper chord and the lower chord, the intersection of the diagonal leg, the transverse tie rod and the web member, the intersection of the transverse tie rod, the web member and the middle of the lower chord, and the intersection of the web member and the ridge of the middle of the upper chord. In the present invention, the node ring is used reasonably to eliminate the stress concentration effect generated by the intersection of the structure, so that the structure is subjected to reasonable and uniform force, and the construction cost is reduced while improving the safety and stability of the structure.

[0013] The present invention further describes that the upper truss structure also includes boundary tie rods, intermediate tie rods, and longitudinal purlins; a plurality of longitudinal purlins are provided and are arranged on the upper chord at equal intervals.

[0014] The present invention further describes that at least one reinforcing tie rod is arranged between the boundary tie rod and the intermediate tie rod; the reinforcing tie rod is a truss.

[0015] The present invention further illustrates that the column is a steel column.

[0016] Compared with the prior art, the present invention has the following advantages: The present invention replaces the traditional steel structure factory building beams with a new type of truss with node rings, that is, adding node rings at the nodes with large forces in the truss structure, which can specifically eliminate the stress concentration caused by the vertical load on the ridge and columns, making the overall structural force distribution more uniform and reasonable. Compared with the traditional portal beam structure, it can adapt to a larger load scale.

[0017] 1. High bearing capacity: Through reasonable structural design and material selection, the combined structure of the present invention can improve the structural bearing capacity while using the same amount of steel, thus saving material costs to the maximum extent.

[0018] 2. Construction efficiency: Since the structural form of the present invention is relatively simple, prefabricated parts and on-site assembly can be used during the construction process, which reduces the construction period and greatly improves the construction efficiency.

[0019] 3. Space utilization: The structural characteristics of the present invention enable the internal space of the building to be more fully utilized, so that the structure maintains a good geometric shape while being subjected to force, is not prone to deformation and instability, and the various rods work together reasonably and beautifully, while also providing more possibilities for architectural design. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of an embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0022] Reference numerals: 1 - double - row column support structure, 2 - upper truss structure, 3 - upper chord, 4 - lower chord, 5 - inclined leg, 6 - transverse tie rod, 7 - web member, 8 - node ring, 9 - boundary tie rod, 10 - intermediate tie rod, 11 - longitudinal purlin. Detailed implementation mode

[0023] The present invention will be further described below with reference to the accompanying drawings. Embodiment

[0024] A novel truss structure with a node ring, as Figure 2 shown, includes an upper truss structure 2 and a double - row column support structure 1; the double - row column support structure 1 is provided with more than four columns, which are arranged at the left and right ends of the upper truss structure 2 (that is: one column is installed at the left and right ends of each upper truss structure).

[0025] As Figure 1 shown, the upper truss structure 2 includes an upper chord 3, a lower chord 4, an inclined leg 5, a transverse tie rod 6, a web member 7 and a node ring 8; the upper chord 3 is fixedly connected to the top of the column; the end of the lower chord 4 is fixedly connected to the upper part of the column; the inclined leg 5 is located between the upper chord 3 and the lower chord 4, and one end is connected to the intersection of the lower chord 4 and the column, and the other end is connected to the quarter or three - quarters position of the upper chord 3 (that is: one inclined leg is provided on each side of the upper truss structure on the left and right. The upper end of the inclined leg on the left is connected to the quarter position of the upper chord, and the lower end is connected to the intersection of the lower chord on the left and the column; the upper end of the inclined leg on the right is connected to the three - quarters position of the upper chord, and the lower end is connected to the intersection of the lower chord on the right and the column); the transverse tie rod 6 is located between the upper chord 3 and the lower chord 4, and the upper end is connected to the intersection of the upper chord 3 and the inclined leg 5, and the lower end is connected to the middle top of the lower chord 4; three node rings 8 are provided, which are respectively arranged around the intersection points of the upper chord 3, the inclined leg 5, the transverse tie rod 6 and the web member 7 on the left and right sides of the upper truss structure 2 and the intersection points of the transverse tie rod 6, the web member 7 and the lower chord 4 in the middle of the upper truss structure 2.

[0026] As one of the preferred implementation modes of this embodiment: as Figure 1 shown, the web member 7 includes a middle vertical web member and an inclined web member; three middle vertical web members are provided in each upper truss structure, and are respectively vertically arranged at the quarter, half and three - quarters positions between the upper chord 3 and the lower chord 4; one end of the inclined web member is connected to the intersection of the lower chord 4 and the column, and the other end is connected to the end of the upper chord 3 that projects out of the column.

[0027] As one of the preferred implementation modes of this embodiment: as Figure 2As shown, the upper truss structure further includes boundary tie rods 9, intermediate tie rods 10, and longitudinal purlins 11; several longitudinal purlins 11 are provided and arranged on the upper chord 3 at equal intervals.

[0028] As one of the preferred embodiments of this embodiment: at least one strengthening tie rod is further arranged between the boundary tie rods 9 and the intermediate tie rods 10; the strengthening tie rod is a truss.

[0029] Obviously, the above embodiments are merely examples for clearly illustrating the present invention, rather than limitations on the implementation of the present invention. For those of ordinary skill in the art to which the present invention pertains, other different forms of changes or modifications can be made based on the above description; it is not necessary and impossible to enumerate all the implementation manners here; and the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A new type of truss structure with node rings, characterized in that: The invention comprises an upper truss structure (2) and a double-row column support structure (1); the double-row column support structure (1) is provided with more than four pillars, which are arranged at the left and right ends of the upper truss structure (2); the upper truss structure (2) comprises an upper chord (3), a lower chord (4), an inclined leg (5), a transverse tie rod (6), a web member (7) and a node ring (8); the upper chord (3) is fixedly connected to the top of the pillar; the end of the lower chord (4) is fixedly connected to the upper part of the pillar; the inclined leg (5) is located between the upper chord (3) and the lower chord (4), and one end of the inclined leg (5) is connected to the intersection of the lower chord (4) and the column The lateral tie rod (6) is located between the upper chord (3) and the lower chord (4), and the upper end is connected to the intersection of the upper chord (3) and the oblique leg (5), and the lower end is connected to the middle top of the lower chord (4); three node rings (8) are arranged respectively around the intersection of the upper chord (3), the oblique leg (5), the lateral tie rod (6) and the web member (7) on the left and right sides of the upper truss structure (2) and the intersection of the lateral tie rod (6), the web member (7) and the lower chord (4) in the middle of the upper truss structure (2).

2. The novel truss structure with node rings according to claim 1 is characterized in that: The web members (7) include a middle vertical web member and an oblique web member; three middle vertical web members are provided in each upper truss structure, and are vertically arranged at one quarter, one half, and three quarters between the upper chord member (3) and the lower chord member (4), respectively; one end of the oblique web member is connected to the junction of the lower chord member (4) and the column, and the other end is connected to the end of the upper chord member (3) cantilevered from the column.

3. The novel truss structure with node rings according to claim 1 is characterized in that: The upper truss structure further comprises boundary tie rods (9), intermediate tie rods (10), and longitudinal purlins (11); a plurality of longitudinal purlins (11) are provided and are arranged at equal intervals on the upper chord (3).

4. The novel truss structure with node rings according to claim 4 is characterized in that: At least one reinforcing tie rod is arranged between the boundary tie rod (9) and the intermediate tie rod (10); the reinforcing tie rod is a truss.

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