Assembled and assembled structural column

Abstract

The invention discloses an assembled and assembled lattice column which is composed of lattice column units, and the lattice column units are connected through connecting angle steel. Each latticed column unit comprises four stand columns which are distributed in a rectangular four-corner mode, batten plates are arranged on the side faces of the latticed column units, and the batten plates are fixedly connected with the stand columns. A latticed column connecting plate is arranged at the end of the stand column, a first connecting hole is formed in the latticed column connecting plate, and a second connecting hole corresponding to the first connecting hole is formed in the connecting angle steel. Compared with the prior art, the lattice column has the beneficial effects that lattice column units are processed in a centralized and segmented mode in a processing factory and are combined and installed on a construction site, transportation can be facilitated, the construction speed of the lattice column can be increased, and the processing quality of the lattice column can be improved; lattice column units can be machined into different length specifications, the situation that joints are located on the same horizontal plane can be avoided, and the structural strength of the lattice column is guaranteed. The latticed column units are connected through bolts, and the latticed column units are detachable, so that the latticed column units are convenient to recycle and reuse.

Description

Technical Field

[0001] The invention relates to the technical fields of subways, tunnels, construction engineering and the like, and in particular to an assembled combined lattice column. Background Art

[0002] With economic development and technological progress, the construction industry has developed rapidly. In order to maximize the use of land, developers have expanded the area occupied by permanent structures to the greatest extent possible while meeting the setback requirements within the building red line. In order to ensure the safety of surrounding sites and underground municipal pipelines, government regulatory authorities have also strictly restricted the occupation of land outside the red line and required the protection of adjacent relationships. In order to reduce the amount of excavation and backfilling and shorten the construction period, construction units also tend to adopt support structures to ensure construction safety. Against this background, internal support system technology has been rapidly developed and applied. When internal supports are constructed over large spans, lattice column supports are generally used to solve their own gravity, and the cross-sectional dimensions of the concrete support system are optimized by lattice column spacing to reduce construction costs.

[0003] The cross section of the lattice column is generally designed as a biaxially symmetrical or uniaxially symmetrical cross section of angle steel or steel plate, and has a wide range of uses in the construction process. The lattice system components are composed of limbs and tie materials. The limbs mainly bear axial forces, and the tie materials mainly resist lateral forces (relative to the axial direction of the limbs). At present, lattice columns are generally welded on-site. On-site construction is limited by the site, the welding environment and the level of on-site workers. The pursuit of speed and quality control in the rush stage is poor, and there are safety hazards in the subsequent engineering support process. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an assembled combined lattice column, which is centrally processed in sections at a processing plant and assembled and installed at a construction site, thereby improving the construction speed and processing quality of the lattice column.

[0005] To achieve this technical purpose, the present invention adopts the following scheme: An assembled combined lattice column is composed of lattice column units, which are connected by connecting angle steels; the lattice column unit includes four column angle steels, which are distributed at the four corners of a rectangle, and the side of the lattice column unit is provided with a tie plate, which is fixedly connected to the column angle steel; the end of the column angle steel is a lattice column connecting plate, a first connecting hole is provided on the lattice column connecting plate, and a second connecting hole corresponding to the first connecting hole is provided on the connecting angle steel.

[0006] Compared with the prior art, the present invention has the following beneficial effects: The lattice column units of the present invention are processed in sections in a processing plant and assembled and installed at the construction site, which is convenient for transportation and improves the construction speed and processing quality of the lattice columns. The present invention can also process the lattice column units into different length specifications, which can avoid joints on the same horizontal plane and ensure the structural strength of the lattice columns. At the same time, welding is reduced, and restrictions on welding during dust control periods are avoided, which is energy-saving and environmentally friendly. The lattice column units are connected by bolts, and the lattice column units are detachable and easy to be recycled and reused.

[0007] Furthermore, a positioning nut is provided inside the first connecting hole of the lattice column connecting plate, the lattice column connecting plate and the connecting angle steel are connected by connecting bolts, and the connecting bolts are threadedly connected to the positioning nut.

[0008] Furthermore, the lattice column unit has at least two length specifications.

[0009] Further, the lattice column is constructed according to the following steps: Step 1: Process the column, open a first connection hole at the end of the column angle steel, and weld a positioning nut inside the first connection hole; Step 2: Welding of the gusset plate: Processing and welding of the gusset plate according to the design requirements; Step 3: Process the connecting angle steel and open a second connecting hole on the connecting angle steel, wherein the position of the second connecting hole corresponds to the position of the first connecting hole; Step 4: On-site assembly, install the connecting angle steel on the outside of the lattice column connecting plate of the two lattice column units to be connected, and connect them with bolts; Step 5: Hoisting and installation: hoist the assembled lattice column to the designated position. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the lattice column unit structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the connection part of the lattice column according to an embodiment of the present invention; Figure 3 It is a cross-sectional view of the connection part of the lattice column according to an embodiment of the present invention; Figure 4 For the present invention Figure 1 Middle BB cross section; Figure 5 for Figure 3 A magnified view of the connecting node part; The markings in the figure are: 1. column angle steel; 2. tie plate; 3. lattice column connecting plate; 4. first connecting hole; 5. positioning nut; 6. connecting bolt; 7. connecting angle steel; 8. lattice column unit. DETAILED DESCRIPTION

[0011] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific implementation methods, but the present invention is not limited thereto.

[0012] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" or "laid on" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0013] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0014] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0015] See also Figures 1 to 5 The present invention provides an assembled combined lattice column, which is composed of a lattice column unit 8. The lattice column unit 8 is provided with at least two length specifications to avoid the joints being in the same plane. The lattice column units 8 are connected by connecting angle steels 7; the lattice column unit 8 includes four column angle steels 1, which are distributed at the four corners of a rectangle, and the side of the lattice column unit 8 is provided with a gusset plate 2, which is fixedly connected to the column angle steel 1; the end of the column angle steel 1 is a lattice column connecting plate 3, and a first connecting hole 4 is provided on the lattice column connecting plate 3, and a positioning nut 5 is provided inside the first connecting hole 4 of the lattice column connecting plate 3, and a second connecting hole corresponding to the first connecting hole 4 is provided on the connecting angle steel 7, and the lattice column connecting plate 3 and the connecting angle steel 7 are connected by connecting bolts 6, and the connecting bolts 6 are threadedly connected to the positioning nut 5.

[0016] Further, the lattice column is constructed according to the following steps: Step 1: Process the column, open a first connection hole 4 at the end of the column angle steel 1, and weld a positioning nut 5 inside the first connection hole 4; Step 2: Welding of the gusset plate 2: Processing and welding of the gusset plate 2 according to the design requirements; Step 3: Process the connecting angle steel 7, and open a second connecting hole on the connecting angle steel 7, wherein the position of the second connecting hole corresponds to the position of the first connecting hole 4; Step 4: On-site assembly, install the connecting angle steel 7 on the outside of the lattice column connecting plate 3 of the two lattice column units 8 to be connected, and connect them with the connecting bolts 6; Step 5: Hoisting and installation: hoist the assembled lattice column to the designated position.

[0017] In some embodiments, the length of the lattice column is based on a module of 600, and lattice column units 8 with two length specifications of 4.8 meters and 6.0 meters are manufactured.

[0018] In some embodiments, the processing process of the lattice column is: construction preparation → lattice column column processing (chamfering, opening holes, nut welding) → welding of the gusset plate 2 → processing of the connecting angle steel 7 → on-site assembly → hanging and installation. Specifically, it includes the following steps: Step 1: Processing of lattice column columns. ① Select L140*14 equilateral angle steel for column angle steel 1, ② Open three first connection holes 4 at a distance of not less than 25mm from the edge of the angle steel, ③ After the hole position is accepted, weld the positioning nut 5 on the inside, and the positioning nut 5 can be M16 nut, ④ Cut off the corners of 150mm at both ends of the column angle steel 1 to avoid being affected when installing the inner arc of the outer reinforcement connector.

[0019] Step 2: The 420*300*10 steel plate is used for the gusset plate 2. The gusset plate 2 is mechanically cut in the processing plant. Gas welding cutting is strictly prohibited. The width and thickness of the gusset plate 2 are strictly controlled, and the welding is carried out after marking and positioning on the column angle steel 1. The height of the weld fillet weld is 8mm.

[0020] Step 3: Processing of connecting angle steel 7. The connecting angle steel 7 is 1~2 sizes larger than the column angle steel 1, and L160*14 equilateral angle steel can be used. The length of the angle steel is 290mm, and it is 10mm smaller than the spacing between the upper and lower inter-section plates 2 at the joint to prevent welding temperature deformation from affecting the installation accuracy. The connecting angle steel 7 is mechanically opened with a second connecting hole, and the position of the second connecting hole corresponds to the opening position of the first connecting hole 4.

[0021] Step 4: On-site assembly. Before assembly, the inner side of the connecting angle steel 7 and the outer side of the lattice column connecting plate 3 are horizontally polished to remove rust, and the polishing direction is perpendicular to the direction of the column; 3% are randomly selected for assembly inspection before leaving the factory, and they are numbered and covered with rainproof after entering the site; on-site assembly, the connecting bolt 6 is passed through the second connecting hole and the first connecting hole 4 in turn, and connected with the positioning nut 5, and the torque wrench is initially tightened to 50% of the design torque, and finally tightened to 100% of the design torque. The connecting bolt 6 uses a large hexagonal bolt.

[0022] Step 5: Hoisting installation. The lattice column has many holes and its overall strength is high. No specific hoisting position is specified, and no separate hoisting ring is set. The site is limited. Horizontal assembly and overall hoisting installation are recommended. If vertical hoisting and assembly are used, safety measures should be taken.

[0023] Compared with the prior art, the present invention has the following beneficial effects: The lattice column units of the present invention are processed in sections in a processing plant and assembled and installed at the construction site, which is convenient for transportation and improves the construction speed and processing quality of the lattice columns. The present invention can also process the lattice column units into different length specifications, which can avoid joints on the same horizontal plane and ensure the structural strength of the lattice columns. At the same time, welding is reduced, and restrictions on welding during dust control periods are avoided, which is energy-saving and environmentally friendly. The lattice column units are connected by bolts, and the lattice column units are detachable and easy to be recycled and reused.

[0024] Finally, it should be noted that the above are only preferred embodiments of the present invention. Of course, those skilled in the art can make changes and modifications to the present invention. If these modifications and variations fall within the scope of the claims of the present invention and their equivalent technologies, they should be considered to be within the scope of protection of the present invention.

Claims

1. An assembled lattice column, consisting of lattice column units (8), characterized in that: The lattice column units (8) are connected by connecting angle steels (7); the lattice column unit (8) comprises four column angle steels (1), the four column angle steels (1) are distributed at the four corners of a rectangle, a gusset plate (2) is provided on the side of the lattice column unit (8), the gusset plate (2) is fixedly connected to the column angle steel (1); the end of the column angle steel (1) is a lattice column connecting plate (3), a first connecting hole (4) is provided on the lattice column connecting plate (3), and a second connecting hole corresponding to the first connecting hole (4) is provided on the connecting angle steel (7).

2. The assembled lattice column according to claim 1, characterized in that: A positioning nut (5) is provided inside the first connection hole (4) of the lattice column connection plate (3); the lattice column connection plate (3) and the connection angle steel (7) are connected via a connection bolt (6); and the connection bolt (6) is threadedly connected to the positioning nut (5).

3. The assembled lattice column according to claim 1, characterized in that: The lattice column unit (8) has at least two length specifications.

4. The assembled lattice column according to claim 1, characterized in that: Follow these steps to construct: Step 1: Processing the column, opening a first connection hole (4) at the end of the column angle steel (1), and welding a positioning nut (5) inside the first connection hole (4); Step 2: welding the gusset plate (2), processing and welding the gusset plate (2) according to the design requirements; Step 3: Processing the connecting angle steel (7), and opening a second connecting hole on the connecting angle steel (7), wherein the position of the second connecting hole corresponds to the position of the first connecting hole (4); Step 4: On-site assembly, installing the connecting angle steel (7) on the outer side of the lattice column connecting plate (3) of the two lattice column units (8) to be connected, and connecting them with the connecting bolts (6); Step 5: Hoisting and installation: hoist the assembled lattice column to the designated position.

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