Anti-overturning structure of high-altitude lower cross beam and construction method thereof

Abstract

An anti-tilting structure for a high-altitude lower crossbeam and its construction method are disclosed. The structure includes a triangular bracket base, a distribution crossbeam, a lower crossbeam assembly, and clamp seats. The distribution crossbeam is fixedly installed on the triangular bracket base, and the lower crossbeam assembly is fixedly placed above the distribution crossbeam. The clamp seats are installed on both sides of the lower crossbeam assembly and fixedly connected to the triangular bracket base. The clamp seats facilitate the fixation of the horizontal position of the triangular bracket base and the lower crossbeam assembly, thereby preventing tilting when subjected to lateral loads. The structure is simple, the location is advantageous, and the construction operation is very convenient. It avoids the disadvantages of using other more complex structures that require operation in a suspended state at high altitudes, thus improving the safety of high-altitude construction.

Description

Technical Field

[0001] This invention belongs to the field of high-altitude beam construction, specifically relating to an anti-tilting structure for high-altitude beams and its construction method. Background Technology

[0002] The lower crossbeam of the cable-stayed bridge tower and the 0# block of the main beam are connected by a consolidation method. The lower crossbeam and the 0# block are required to be cast as a whole in the same time. The lower crossbeam and the 0# block are cast in two stages. The first stage is to cast the lower part of the lower crossbeam excluding the 0# block. The second stage is to cast the upper part of the lower crossbeam and the 0# block connected to it.

[0003] The lower tower column is very tall, so the conventional ground-supported casting method is not suitable. Instead, the high-altitude cantilever casting method is adopted. A steel truss support is set under the lower crossbeam, and cantilevered triangular brackets are set from the support. The casting load of the lower crossbeam is directly borne by the steel truss, and the casting load of block #0 is borne by the cantilevered triangular bracket structure, which transmits the force to the steel truss. The support points of the steel truss are provided by the steel structure set on the two sides of the tower wall.

[0004] The steel truss support has a strong vertical load-bearing capacity, but its lateral torsional resistance is weak, making it unable to withstand the asymmetrical tilting load transmitted from the triangular brackets during the cantilever casting of block #0. This tilting load is difficult to avoid and control, including asymmetrical casting loads, irregular wind loads, and potential accidental sudden loads. Appropriate structural measures are necessary to resist this tilting load. Summary of the Invention

[0005] To address the above shortcomings, the technical problem to be solved by this invention is to provide an anti-tilting structure for a high-altitude lower crossbeam and its construction method, which is used to laterally fix the lower crossbeam and the triangular bracket to prevent the high-altitude lower crossbeam from tilting.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0007] An anti-tilting structure for a high-altitude lower crossbeam includes a triangular bracket base, a distribution crossbeam, a lower crossbeam assembly, and clamp seats. The distribution crossbeam is fixedly installed on the triangular bracket base, the lower crossbeam assembly is fixedly placed above the distribution crossbeam, and the clamp seats are installed on both sides of the lower crossbeam assembly and fixedly connected to the triangular bracket base.

[0008] Furthermore, the clamp seat includes a limiting end plate and a clamp base. The limiting end plate is fixedly connected to the clamp base, and the clamp base is fixedly connected to the triangular bracket base. The lower crossbeam assembly is fixedly connected to the limiting end plate.

[0009] Furthermore, the clamp base includes a base vertical plate, a base connecting plate, and a base reinforcing plate. Parallel base vertical plates are fixedly connected to both sides of the base connecting plate, and the base reinforcing plate is fixedly connected between adjacent base vertical plates, with the base reinforcing plate located below the base connecting plate.

[0010] Furthermore, the limiting end plate is fixedly connected to the base vertical plate, the base connecting plate is fixedly connected to the limiting end plate, and there is a gap between the base reinforcing plate and the limiting end plate.

[0011] Furthermore, a snap-fit ​​component is fixedly connected to the outer side of the base vertical plate. A snap-fit ​​groove is carved inside the snap-fit ​​component, and a welded component is inserted into the snap-fit ​​groove. The welded component is welded to the triangular bracket base.

[0012] Furthermore, the welded components include a snap-fit ​​piece, a connecting plate, and an L-shaped welding plate. The snap-fit ​​piece is fixedly connected to the L-shaped welding plate through the connecting plate. The snap-fit ​​piece is inserted into the snap-fit ​​groove, and the L-shaped welding plate is welded to the triangular bracket base.

[0013] Furthermore, the lower crossbeam assembly includes a lower crossbeam and a crossbeam template, with the crossbeam template placed above the distribution crossbeam and the lower crossbeam fixedly installed above the crossbeam template.

[0014] Furthermore, the lowest end of the limiting end plate is located between the upper and lower end faces of the crossbeam template.

[0015] Furthermore, the triangular bracket base is characterized by comprising an upper beam, a lower beam, a vertical support column, and a diagonal brace. The upper beam and the lower beam are fixedly connected by the vertical support column. One end of the diagonal brace is fixedly connected to the connection between the vertical support column and the lower beam, and the other end of the diagonal brace is fixedly connected to the upper beam.

[0016] The construction method for the above-mentioned high-altitude horizontal beam anti-tilting structure includes the following steps:

[0017] (1) Determine the installation location of the lower crossbeam assembly;

[0018] (2) Lay a distribution beam on the triangular bracket base, with the position of the distribution beam corresponding to the installation position of the lower beam assembly;

[0019] (3) Install the lower crossbeam assembly onto the distribution crossbeam;

[0020] (4) Determine the installation position of the clamp seat and fix the limiting end plate inside the clamp seat on the side wall of the lower crossbeam;

[0021] (5) Weld the clamp base to the triangular bracket base and the limiting end plate;

[0022] (6) The welded parts are fixedly installed into the clamping parts of the clamp base, and the welded parts are welded to the triangular bracket;

[0023] (7) Lay distribution beams on both sides of the clamp base.

[0024] The beneficial effects of this invention are that the clamp seat facilitates the fixation of the horizontal position of the triangular bracket base and the lower crossbeam assembly, thereby preventing the triangular bracket base or the lower crossbeam assembly from tilting when subjected to horizontal loads. The structure is simple, the position is advantageous, and the construction operation is very convenient. It avoids the disadvantages of using other more complex structures that require operation in a suspended state at high altitudes, thus improving the safety of high-altitude construction. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention.

[0026] Figure 2 This is a side view of the present invention.

[0027] Figure 3 This is a magnified view of a portion of point A.

[0028] Figure 4 This is a schematic diagram of the clamp seat.

[0029] Figure 5 This is a structural schematic diagram of the welded component.

[0030] Reference numerals: 1. Triangular bracket base; 2. Distribution beam; 3. Lower beam assembly; 4. Clamp seat; 5. Limiting end plate; 6. Clamp base; 7. Base vertical plate; 8. Base connecting plate; 9. Base reinforcing plate; 10. Gap; 11. Clip; 12. Clip groove; 13. Welded part; 14. Clip piece; 15. Connecting plate; 16. L-shaped welded plate; 17. Lower beam; 18. Beam template; 19. Upper beam; 20. Lower beam; 21. Vertical support column; 22. Diagonal brace; 23. First distribution beam; 24. Second distribution beam. Detailed Implementation

[0031] The present invention will now be further described with reference to the accompanying drawings.

[0032] An anti-tilting structure for a high-altitude lower crossbeam includes a triangular bracket base 1, a distribution crossbeam 2, a lower crossbeam assembly 3, and clamp seats 4. The distribution crossbeam 2 is fixedly installed on the triangular bracket base 1, and the lower crossbeam assembly 3 is fixedly placed above the distribution crossbeam 2. The clamp seats 4 are installed on both sides of the lower crossbeam assembly 3 and fixedly connected to the triangular bracket base 1. The clamp seats 4 facilitate the fixation of the horizontal position of the triangular bracket base 1 and the lower crossbeam assembly 3, thereby preventing the triangular bracket base 1 or the lower crossbeam assembly 3 from tilting under lateral loads. The structure is simple, the location is advantageous, and the construction operation is very convenient. It avoids the disadvantages of using other more complex structures that require operation in a suspended state at high altitudes, thus improving the safety of high-altitude construction.

[0033] The clamp seat 4 includes a limiting end plate 5 and a clamp base 6. The limiting end plate 5 is fixedly connected to the clamp base 6, and the clamp base 6 is fixedly connected to the triangular bracket base 1. The lower crossbeam assembly 3 is fixedly connected to the limiting end plate 5. That is, the limiting end plate 5 is attached to the side wall of the lower crossbeam assembly 3. The limiting end plate 5 is fixedly installed by the clamp base 6, thereby limiting the lateral movement of the lower crossbeam assembly 3 and preventing relative movement between the lower crossbeam assembly and the triangular bracket base 1.

[0034] The clamp base 6 includes a base vertical plate 7, a base connecting plate 8, and a base reinforcing plate 9. Parallel base vertical plates 7 are fixedly connected to both sides of the base connecting plate 8. The base reinforcing plate 9 is fixedly connected between adjacent base vertical plates 7. The base reinforcing plate 9 is located below the base connecting plate 8 and connects adjacent base vertical plates 7 through the base connecting plate 8. The base reinforcing plate 9 is used to improve the strength of the base vertical plates 7, prevent the clamp base 6 from failing under stress, improve the strength of the clamp base 4, and improve the stability of this anti-tilting structure.

[0035] The limiting end plate 5 is fixedly connected to the base vertical plate 7, and the base connecting plate 8 is fixedly connected to the limiting end plate 5. The connection between the base vertical plate 7, the base connecting plate 8 and the limiting end plate 5 improves the strength of the limiting end plate 5 and prevents the limiting end plate 5 from rotating relative to the clamp base 6. A gap 10 is provided between the base reinforcing plate 9 and the limiting end plate 5. During the welding process, it is convenient to fully weld the limiting end plate 5 and the clamp base 6 through the gap 10, thereby improving the strength of the clamp base 4.

[0036] A snap-fit ​​component 11 is fixedly connected to the outer side of the base vertical plate 7. A snap-fit ​​groove 12 is carved in the snap-fit ​​component 11. A welded component 13 is inserted into the snap-fit ​​groove 12. The welded component 13 is welded to the triangular bracket base 1. The welded component 13 further improves the connection strength between the clamp seat 4 and the triangular bracket base 1, increases the load that the clamp seat 4 can withstand, and thus improves the stability of the structure.

[0037] The welded component 13 includes a snap-fit ​​piece 14, a connecting plate 15, and an L-shaped welding plate 16. The snap-fit ​​piece 14 is fixedly connected to the L-shaped welding plate 16 through the connecting plate 15. The snap-fit ​​piece 14 is inserted into the snap-fit ​​groove 12. The L-shaped welding plate 16 is welded to the triangular bracket base 1. The structure of the welded component 13 is simple and easy to produce and install.

[0038] The lower crossbeam assembly 3 includes a lower crossbeam 17 and a crossbeam template 18. The crossbeam template 18 is placed above the distribution crossbeam 2, and the lower crossbeam 17 is fixedly installed above the crossbeam template 18. By setting the crossbeam template 18, it is possible to prevent sand and gravel on the lower crossbeam 17 from falling and causing danger.

[0039] The bottom end of the limiting end plate 5 is located between the upper and lower end faces of the crossbeam template 18.

[0040] The triangular bracket base 1 includes an upper beam 19, a lower beam 20, a vertical support column 21, and a diagonal brace 22. The upper beam 19 and the lower beam 20 are fixedly connected by the vertical support column 21. One end of the diagonal brace 22 is fixedly connected to the connection between the vertical support column 21 and the lower beam 20, and the other end of the diagonal brace 22 is fixedly connected to the upper beam 19. The diagonal brace 22 is designed to improve the strength of the triangular bracket base 1.

[0041] In some preferred embodiments, a plurality of triangular bracket bases 1 are installed below the lower crossbeam assembly 3, and the distribution beam 2 is laid on the adjacent triangular bracket bases 1, with a clamp seat 4 installed on each triangular bracket base 1.

[0042] The construction method for the above-mentioned high-altitude horizontal beam anti-tilting structure includes the following steps:

[0043] (1) Determine the relative position of the lower crossbeam assembly on the triangular bracket base;

[0044] (2) Lay the first distribution beam on the triangular bracket base. The laying position of the distribution beam corresponds to the installation position of the lower beam assembly. Weld the laid distribution beam to the triangular bracket base.

[0045] (3) Lay the crossbeam template on the distribution crossbeam, and then install the lower crossbeam onto the crossbeam template;

[0046] (4) Determine the installation position of the clamp seat, and fix the limiting end plate inside the clamp seat to the crossbeam template with screws so that the limiting end plate fits against the side wall of the lower crossbeam.

[0047] (5) Weld the clamp base to the triangular bracket base and the limiting end plate;

[0048] (6) The welded parts are fixedly installed into the clamping parts of the clamp base, and the welded parts are welded to the triangular bracket;

[0049] (7) Lay a second distribution beam on both sides of the clamp base.

[0050] In some preferred embodiments, the spacing between the first distribution beams 23 is smaller than the spacing between the second distribution beams 24, which helps to reduce the stress on the distribution beams located below the lower beam assembly 3. Preferably, the second distribution beams 24 near the clamp seat fit together with the clamp seat 4 to further prevent the clamp seat 4 from deforming.

[0051] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention; therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0052] Although this document makes extensive use of terms corresponding to the figure labels, the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the essence of the invention; interpreting them as any kind of additional limitation would be contrary to the spirit of the invention.

Claims

1. A tilt-resistant structure for a horizontal beam at a high altitude, characterized in that, It includes a triangular bracket base (1), a distribution beam (2), a lower beam assembly (3), and a clamp seat (4). The distribution beam (2) is fixedly installed on the triangular bracket base (1), the lower beam assembly (3) is fixedly placed above the distribution beam (2), and the clamp seat (4) is installed on both sides of the lower beam assembly (3) and fixedly connected to the triangular bracket base (1). The clamp seat (4) includes a limiting end plate (5) and a clamp base (6). The limiting end plate (5) is fixedly connected to the clamp base (6), and the clamp base (6) is fixedly connected to the triangular bracket base (1). The lower crossbeam assembly (3) is fixedly connected to the limiting end plate (5). The clamp base (6) includes a base vertical plate (7), a base connecting plate (8) and a base reinforcing plate (9). Parallel base vertical plates (7) are fixedly connected to both sides of the base connecting plate (8). The base reinforcing plate (9) is fixedly connected between adjacent base vertical plates (7). The base reinforcing plate (9) is located below the base connecting plate (8). A snap-fit ​​piece (11) is fixedly connected to the outside of the base vertical plate (7). A snap-fit ​​groove (12) is dug in the snap-fit ​​piece (11). A welding piece (13) is inserted into the snap-fit ​​groove (12). The welding piece (13) is welded to the triangular bracket base (1). The welding component (13) includes a snap-fit ​​piece (14), a connecting plate (15) and an L-shaped welding plate (16). The snap-fit ​​piece (14) is fixedly connected to the L-shaped welding plate (16) through the connecting plate (15). The snap-fit ​​piece (14) is inserted into the snap-fit ​​groove (12). The L-shaped welding plate (16) is welded to the triangular bracket base (1). The limiting end plate (5) is fixedly connected to the base vertical plate (7), the base connecting plate (8) is fixedly connected to the limiting end plate (5), and there is a gap (10) between the base reinforcing plate (9) and the limiting end plate (5); the lower crossbeam assembly (3) includes a lower crossbeam (17) and a crossbeam template (18), the crossbeam template (18) is placed above the distribution crossbeam (2), and the lower crossbeam (17) is fixedly installed above the crossbeam template (18); The triangular bracket base (1) includes an upper beam (19), a lower beam (20), a vertical support column (21), and a diagonal brace (22). The upper beam (19) and the lower beam (20) are fixedly connected by the vertical support column (21). One end of the diagonal brace (22) is fixedly connected to the connection between the vertical support column (21) and the lower beam (20), and the other end of the diagonal brace (22) is fixedly connected to the upper beam (19).

2. The anti-tilting structure for a high-altitude horizontal beam according to claim 1, characterized in that, The bottom end of the limiting end plate (5) is located between the upper and lower end faces of the crossbeam template (18).

Images