An elliptical open steel structure and a method for installing the same

Abstract

The application discloses an elliptical open steel structure and a mounting method thereof. The elliptical open steel structure comprises edge columns arranged in an elliptical dot shape, inner columns arranged on the inner side of the edge columns, edge column connecting arc beams connected between adjacent edge columns, inner column connecting arc beams connected between adjacent inner columns, first and second inner elliptical ring beams arranged at one end of the inner long side of the edge column elliptical distribution, inner connecting horizontal straight beams or inner connecting vertical straight beams arranged between the first inner elliptical ring beam and the edge column, and inner connecting horizontal straight beams or inner connecting vertical straight beams between the first and second inner elliptical ring beams. The edge columns are arranged to facilitate the open modeling of the steel structure. The edge column connecting arc beams arranged on the edge columns facilitate the formation of the elliptical steel structure. The inner columns and the inner beam bodies thereof are arranged to form a stable steel structure overall net rack and provide a support base for the mounting of the edge columns. The arrangement of the inclined pull ropes facilitates the hoisting and temporary fixing of the edge columns.

Description

Technical Field

[0001] This invention relates to the field of steel structure installation technology, and in particular to an elliptical open steel structure and its installation method. Background Technology

[0002] With the construction of various large-scale venues, in order to meet diverse and unique design needs, these venues are typically constructed using steel structures. Generally, steel structure construction follows a sequence of columns, beams, and secondary beams. However, when steel structures contain slanted columns with outward-flaring openings, there is little discussion on how to facilitate their convenient and efficient installation, and even less on how to balance installation speed with overall structural integrity. Summary of the Invention

[0003] This invention provides an elliptical open steel structure and its installation method to solve technical problems such as connection, hoisting and installation of elliptical open steel structures.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An elliptical open steel structure includes side columns arranged in an elliptical pattern, inner columns located inside the side columns, side column connecting beams between adjacent side columns, inner column connecting beams between adjacent inner columns, a first inner elliptical ring beam and a second inner elliptical ring beam located at one long end of the elliptical distribution of the side columns, an inner connecting horizontal or vertical beam located between the first inner elliptical ring beam and the side columns, and an inner connecting horizontal or vertical beam between the first inner elliptical ring beam and the second inner elliptical ring beam.

[0005] The side columns are inclined columns with a trumpet-shaped opening; the inner columns include a group of rectangular columns distributed in an elliptical dot pattern; the rectangular columns are vertically arranged, and adjacent rectangular columns are provided with inner column connecting beams; the inner column connecting beams are arranged parallel to the side column connecting beams.

[0006] Furthermore, the inner side of the rectangular column is also provided with zigzag-distributed inner columns, which are arranged in a wavy pattern along the longitudinal direction of the first inner elliptical ring beam; in addition, inner columns are also provided at intervals along the longitudinal direction of the inner connecting horizontal beams and the inner connecting longitudinal beams.

[0007] Furthermore, the elliptical dot-shaped side columns are provided with N-shaped internal connecting beams at both ends along their longitudinal direction, and the internal connecting beams are connected to the inner columns distributed along the broken lines inside the rectangular columns.

[0008] Furthermore, adjacent inner connecting horizontal beams are connected by inner connecting secondary arc beams, and adjacent inner connecting vertical beams are also connected by inner connecting secondary arc beams; and adjacent inner connecting secondary arc beams are also connected by inner connecting secondary arc beams.

[0009] Furthermore, the inner connecting secondary arc beams are connected in an arc shape at the inner connecting oblique beams of the N-shape, and the arc angle is adapted to the side column connecting arc beams.

[0010] Furthermore, the first inner elliptical ring beam is interposed and connected to the inner connecting horizontal beam and the inner connecting vertical beam, and an inner connecting horizontal beam and an inner connecting vertical beam are also provided between the first inner elliptical ring beam and the second inner elliptical ring beam; the interior of the second inner elliptical ring beam is an elliptical notch.

[0011] Furthermore, the side post includes a side inclined post and a side inclined top joint connected to the side inclined post; The inner column includes an inner straight column and an inner straight top joint with a corresponding side inclined top joint. Adjacent inner straight top joints and side inclined top joints are connected by an inner inclined beam, an inner horizontal beam, or an inner longitudinal beam.

[0012] Furthermore, both the side columns and the inner columns are spliced ​​together, with a column splicing plate at the splice point. The column splicing plate is connected to the two sides of the column body with column splicing base plates. The column splicing base plates are set on the column body and can be temporarily tied with diagonal ropes.

[0013] Furthermore, the specific steps for installing the elliptical open steel structure are as follows: Step 1: After the beams and columns are fabricated, they are transported to the construction site and unloaded into the installation area using a truck crane. Step 2: Once the conditions for hoisting are met, use the tower cranes arranged on site as hoisting machinery to hoist the columns and beams. During installation, use a level and a theodolite to control the plane position and elevation of the steel columns. Step 3: Based on the placement of the post-pouring strip, divide the construction into sections; first install the inner columns, then install the connecting beams, longitudinal beams, and transverse beams between the inner columns to form a preliminary overall space frame; the inner columns are spliced ​​columns, and their joints are welded together. Step 4: Temporarily tie diagonal ropes to the lower middle column base plate of the inner column adjacent to the side column, and tie the other end of the diagonal ropes to the top column base plate of the side column to be hoisted; then slowly hoist the side column using the tower crane's hoisting ropes. Step 5: After the side column is hoisted and positioned, connect the inner horizontal or vertical beams between the inclined top joint of the side column and the inner vertical top joint of the adjacent inner column; then install the first inner elliptical ring beam, the second inner elliptical ring beam, the inner inclined beam, the inner secondary arc beam, and the inner secondary arc beam connecting beam to form the overall steel structure space frame; then use the same method to hoist the steel columns and beams of the next floor or the next flow section, and the construction is completed.

[0014] The beneficial effects of this invention are reflected in: 1) The present invention facilitates the open shape of the steel structure by setting the side columns; and the setting of the side column connecting the side column with the arc beam facilitates the formation of the elliptical steel structure. 2) By setting up the inner columns and their internal beams, the present invention forms a stable overall steel structure grid on the one hand, and provides a supporting foundation for the installation of the side columns on the other hand. 3) The present invention uses a diagonal rope to ensure that the side column can be temporarily fixed during the hoisting process, which facilitates the subsequent installation of the beam.

[0015] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention; the main objects and other advantages of the invention may be realized and obtained by means of the embodiments particularly pointed out in the description. Attached Figure Description

[0016] Figure 1 It is a top view of an elliptical open steel structure; Figure 2 This is a schematic diagram of the hoisting and installation of side columns and inner columns. Figure 1 ; Figure 3 This is a schematic diagram of the hoisting and installation of side columns and inner columns. Figure 2 ; Figure 4 This is a schematic diagram of the hoisting and installation of side columns and inner columns. Figure 3 ; Figure 5 This is a schematic diagram showing the connection between the inner column and the inclined rope; Figure 6 This is a schematic diagram of the connection between the side post and the inclined rope.

[0017] Attached reference numerals: 1-Side column, 101-Slanted side column, 102-Slanted side top joint, 2-Inner column, 21-Inner straight column, 22-Inner straight top joint, 3-Side column connecting arc beam, 4-Inner column connecting arc beam, 5-First inner elliptical ring beam, 6-Second inner elliptical ring beam, 7-Inner connecting horizontal beam, 8-Inner connecting longitudinal beam, 9-Inner connecting inclined beam, 10-Inner connecting secondary arc beam, 11-Inner connecting secondary arc beam connecting beam, 12-Tower crane, 13-Lifting rope, 14-Slanted rope, 15-Column splicing plate, 16-Column splicing base plate. Detailed Implementation

[0018] Taking an internet industrial park project as an example, it consists of four industrial R&D and testing buildings and one conference and exhibition center. Among them, the main structure of Building #2 is an elliptical open steel structure. The main difficulty in construction lies in the installation of the 39 inclined steel pipe columns around the perimeter. The cross-sectional dimensions are Ø800×40, Ø900×40, Ø800×50, Ø900×50, and Ø1000×50, respectively. Each round steel pipe column is hoisted in one go, floor by floor.

[0019] Combination Figures 1 to 6As shown, the elliptical open steel structure includes side columns 1 arranged in an elliptical pattern, inner columns 2 located inside the side columns 1, side column connecting beams 3 connecting adjacent side columns 1, inner column connecting beams 4 connecting adjacent inner columns 2, a first inner elliptical ring beam 5 and a second inner elliptical ring beam 6 located at one end of the longitudinal direction inside the elliptical distribution of the side columns 1, an inner connecting horizontal beam 7 or an inner connecting vertical beam 8 located between the first inner elliptical ring beam 5 and the side columns 1, and an inner connecting horizontal beam 7 or an inner connecting vertical beam 8 between the first inner elliptical ring beam 5 and the second inner elliptical ring beam 6.

[0020] In this embodiment, the side column 1 is an oblique column with a trumpet-shaped opening; the inner column 2 includes a group of rectangular columns distributed in an elliptical dot pattern; the rectangular columns are arranged vertically, and an inner column connecting arc beam 4 is provided on adjacent rectangular columns; the inner column connecting arc beam 4 is arranged parallel to the side column connecting arc beam 3.

[0021] In this embodiment, an inner column 2 with a zigzag distribution is also provided inside the rectangular column. The inner column 2 with the zigzag distribution is arranged in a wave-like pattern along the longitudinal direction of the first inner elliptical ring beam 5. In addition, inner columns 2 are also provided at intervals along the longitudinal direction of the inner connecting horizontal beam 7 and the inner connecting longitudinal beam 8.

[0022] In this embodiment, the elliptical, dot-shaped side columns 1 are provided with N-shaped internal connecting diagonal beams 9 at both ends along their longitudinal direction. The internal connecting diagonal beams 9 are connected to the inner columns 2, which are distributed along the inside of the rectangular columns. Internal connecting secondary arc beams 10 are also connected between adjacent internal connecting horizontal beams 7 and between adjacent internal connecting vertical beams 8; internal connecting secondary arc beam connecting beams 11 are also provided between adjacent internal connecting secondary arc beams 10. The internal connecting secondary arc beam connecting beams 11 are connected in an arc shape at the N-shaped internal connecting diagonal beams 9, and the arc angle adapts to the side column connecting arc beams 3.

[0023] In this embodiment, the first inner elliptical ring beam 5 is interposed and connected to the inner connecting horizontal beam 7 and the inner connecting vertical beam 8. The inner connecting horizontal beam 7 and the inner connecting vertical beam 8 are also provided between the first inner elliptical ring beam 5 and the second inner elliptical ring beam 6. The interior of the second inner elliptical ring beam 6 is an elliptical notch.

[0024] In this embodiment, the side column 1 includes a side inclined column 101 and a side inclined top joint 102 connected to the side inclined column 101; the inner column 2 includes an inner straight column 21 and an inner straight top joint 22 corresponding to the side inclined top joint 102, and an inner connecting beam 9, an inner connecting horizontal beam 7 or an inner connecting vertical beam 8 are connected between adjacent inner straight top joints 22 and side inclined top joints 102.

[0025] In this embodiment, the side column 1 and the inner column 2 are spliced ​​together, and a column splicing plate 15 is provided at the splicing point. The column splicing plate 15 is connected to the two sides of the column body by column splicing base plates 16. The column splicing base plates 16 are set on the column body and can be temporarily tied with diagonal ropes 14.

[0026] Combination Figures 1 to 6As shown, the installation method for the elliptical open steel structure includes the following specific steps. Step 1: After the beams and columns are processed, they are transported to the construction site and unloaded into the installation area using a truck crane.

[0027] Step 2: Once the conditions for hoisting are met, use the tower crane 12 arranged on site as the hoisting machinery to hoist the columns and beams. During installation, use a level and a theodolite to control the plane position and elevation of the steel columns.

[0028] Step 3: Based on the placement of the post-pouring strip, divide the construction flow section; first install the inner column 2, then install the inner column connecting arc beam 4, inner connecting longitudinal beam 8, and inner connecting transverse beam 7 between the inner columns 2 to form a preliminary overall grid; among them, the inner column 2 is a splicing column, and its splicing joint is welded together.

[0029] Step 4: Temporarily tie a diagonal rope 14 to the lower middle column base plate 16 of the inner column 2 adjacent to the side column 1, and tie the other end of the diagonal rope 14 to the top column base plate 16 of the side column 1 to be hoisted; then slowly hoist the side column 1 using the hoisting rope 13 of the tower crane 12.

[0030] Step 5: After the side column 1 is hoisted and positioned, connect the inner horizontal beam 7 or inner vertical beam 8 between the side inclined top joint 102 and the inner straight top joint 22 of the adjacent inner column 2; then install the first inner elliptical ring beam 5, the second inner elliptical ring beam 6, the inner inclined beam 9, the inner secondary arc beam 10, and the inner secondary arc beam connecting beam 11 to form the overall steel structure space frame; then use the same method to hoist the steel columns and steel beams of the next floor or the next flow section, and the construction is completed.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for installing an elliptical open-type steel structure, characterized in that, The elliptical open steel structure includes side columns (1) arranged in an elliptical point pattern, inner columns (2) set inside the side columns (1), side column connecting beams (3) connecting adjacent side columns (1), inner column connecting beams (4) connecting adjacent inner columns (2), a first inner elliptical ring beam (5) and a second inner elliptical ring beam (6) set at one end of the elliptical distribution inside the side columns (1), an inner connecting horizontal beam (7) or an inner connecting vertical beam (8) set between the first inner elliptical ring beam (5) and the side column (1), and an inner connecting horizontal beam (7) or an inner connecting vertical beam (8) between the first inner elliptical ring beam (5) and the second inner elliptical ring beam (6). The side column (1) is an oblique column, and the side column (1) is open outward in a trumpet shape; the inner column (2) includes a group of rectangular columns distributed in an elliptical dot pattern; the rectangular columns are set vertically, and the adjacent rectangular columns are provided with inner column connecting arc beams (4); the inner column connecting arc beams (4) are set parallel to the side column connecting arc beams (3); The installation method for an elliptical open steel structure is as follows: The specific steps are as follows. Step 1: After the beams and columns are fabricated, they are transported to the construction site and unloaded into the installation area using a truck crane. Step 2: Once the conditions for hoisting are met, use the tower crane (12) arranged on site as the hoisting machinery to hoist the columns and beams. During installation, use a level and a theodolite to control the plane position and elevation of the steel columns. Step 3: According to the placement of the post-pouring strip, divide the construction flow section; first install the inner columns (2), then install the inner column connecting arc beam (4), inner connecting longitudinal beam (8), and inner connecting transverse beam (7) between the inner columns (2) to form a preliminary overall grid; among them, the inner columns (2) are splicing columns, and their splicing joints are welded together; Step 4: Temporarily tie a diagonal rope (14) to the lower middle column base plate (16) of the inner column (2) adjacent to the side column (1), and tie the other end of the diagonal rope (14) to the top column base plate (16) of the side column (1) to be hoisted; then slowly hoist the side column (1) using the hoisting rope (13) of the tower crane (12). Step 5: After the side column (1) is hoisted and positioned, connect the side inclined top joint (102) with the inner straight top joint (22) of the adjacent inner column (2) with the inner horizontal beam (7) or the inner vertical beam (8); then install the first inner elliptical ring beam (5), the second inner elliptical ring beam (6), the inner inclined beam (9), the inner secondary arc beam (10), and the inner secondary arc beam connecting beam (11) to form the overall steel structure grid; then use the same method to hoist the steel columns and steel beams of the next floor or the next flow section, and the construction is completed.

2. The installation method of an elliptical open steel structure as described in claim 1, characterized in that, The rectangular column is also provided with a zigzag inner column (2), which is arranged in a wave-like pattern along the length of the first inner elliptical ring beam (5); in addition, there are also inner columns (2) spaced along the length of the inner connecting horizontal beam (7) and the inner connecting vertical beam (8).

3. The installation method of an elliptical open steel structure as described in claim 2, characterized in that, The elliptical dot-shaped side columns (1) have N-shaped internal connecting beams (9) at both ends along their length. The internal connecting beams (9) are connected to the inner columns (2) distributed along the inside of the rectangular columns.

4. The installation method of an elliptical open steel structure as described in claim 3, characterized in that, An inner connecting secondary arc beam (10) is also connected between adjacent inner connecting horizontal beams (7), and an inner connecting secondary arc beam (10) is also connected between adjacent inner connecting vertical beams (8); an inner connecting secondary arc beam connecting beam (11) is also provided between adjacent inner connecting secondary arc beams (10).

5. The installation method of an elliptical open steel structure as described in claim 4, characterized in that, The inner connecting secondary arc beam (11) is connected in an arc shape at the inner connecting inclined beam (9) of the N shape, and the arc angle is adapted to the side column connecting arc beam (3).

6. The installation method of an elliptical open steel structure as described in claim 5, characterized in that, The first inner elliptical ring beam (5) is interspersed with the inner connecting horizontal beam (7) and the inner connecting vertical beam (8). The inner connecting horizontal beam (7) and the inner connecting vertical beam (8) are also provided between the first inner elliptical ring beam (5) and the second inner elliptical ring beam (6). The interior of the second inner elliptical ring beam (6) is an elliptical notch.

7. The installation method of an elliptical open steel structure as described in claim 6, characterized in that, The side post (1) includes a side inclined post (101) and a side inclined top joint (102) connected to the side inclined post (101). The inner column (2) includes an inner straight column (21) and an inner straight top joint (22) provided for the corresponding side inclined top joint (102). An inner connecting beam (9), an inner connecting horizontal beam (7) or an inner connecting vertical beam (8) connects adjacent inner straight top joints (22) and side inclined top joints (102).

8. The installation method of an elliptical open steel structure as described in claim 7, characterized in that, The side column (1) and the inner column (2) are spliced ​​together, and a column splicing plate (15) is provided at the splicing point. The column splicing plate (15) is connected to the two sides of the column body by column splicing base plate (16). The column splicing base plate (16) is set on the column body and can be temporarily tied with diagonal rope (14).

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