Horizontal beam structure in full reverse building method

Abstract

The utility model provides a horizontal beam structure in a full reverse building method, which comprises a steel stand column, the steel stand column is arranged along the vertical direction, two horizontal beam components are arranged in the middle of the steel stand column, the horizontal beam components extend along the horizontal direction, the two horizontal beam components are mutually perpendicular and crossed on the same plane, and each horizontal beam component comprises a pair of parallel cross beams. And the four cross beams form a # shape around the steel stand column. The structure solves the problem of arrangement of beam longitudinal bars when a structural beam interferes with a steel stand column, meanwhile, the situation that complex ring beam joints are adopted at beam column joints for connection is avoided, the difficulty of steel bar lofting and installation at the joints is greatly reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a horizontal beam structure in a full top-down construction method. Background Art

[0002] During the top-down construction, circular steel columns are often used as vertical load-bearing members of the structure during the top-down construction. Since high-strength concrete is filled in the steel columns to jointly bear the vertical load with them, they have the advantages of large bearing capacity, rapid construction, and easy connection with structural members after later excavation.

[0003] However, the steel columns penetrate vertically from bottom to top. Currently, in the existing technologies such as Figure 3 shown, the longitudinal bars of the beam cannot penetrate through at the beam-column joint, so a single-beam form is mostly adopted, which will lead to the problem of insufficient structural stress capacity. Summary of the Invention

[0004] To overcome the deficiencies of the existing technologies, the utility model provides a horizontal beam structure in a full top-down construction method, which solves the problem of the arrangement of the longitudinal bars of the beam when the structural beam interferes with the steel column, and at the same time avoids using a complex ring beam joint at the beam-column joint, greatly reducing the difficulty of steel bar lofting and installation at the joint and improving the construction efficiency.

[0005] To achieve the above purpose, the horizontal beam structure in the full top-down construction method of the utility model includes a steel column, the steel column is arranged vertically, two horizontal beam assemblies are provided in the middle of the steel column, the horizontal beam assemblies extend horizontally, the two horizontal beam assemblies are perpendicular to each other and cross in the same plane, and the horizontal beam assembly includes a pair of parallel cross beams, and the four cross beams form a well shape around the steel column.

[0006] Further, the cross beam includes two rows of parallel transverse steel bars, the transverse steel bars in the same row are located on the same horizontal plane, the number of the upper and lower rows of transverse steel bars is the same, several longitudinal beam bars are arranged between the upper and lower rows of transverse steel bars, the longitudinal beam bars enclose a square shape, the long sides of the longitudinal beam bars are arranged vertically, the projections of the short sides of the longitudinal beam bars on the plane where the transverse steel bars are located are perpendicular to the transverse steel bars, and the spacing between adjacent longitudinal beam bars is equal.

[0007] Further, several reinforcing bars are also arranged on the long sides of the longitudinal beam bars, the reinforcing bars are parallel to the transverse steel bars, and the spacing between adjacent reinforcing bars is equal.

[0008] Further, several cap columns are provided on the outer periphery of the steel column, the cap columns are evenly distributed at equal intervals in the circumferential direction of the steel column, the cap columns are also evenly distributed at equal intervals in the axial direction of the steel column, and the cap columns are fixedly connected to the adjacent transverse steel bars.

[0009] Furthermore, diagonal bracing bars are respectively provided at the top and bottom of the cross beam. One end of the diagonal bracing bar is arranged in the middle of one cross beam, and the other end of the diagonal bracing bar is arranged in the middle of the cross beam perpendicular to the previous cross beam. Four diagonal bracing bars on the same plane enclose a cross shape.

[0010] Furthermore, shear resistance rings are provided on the outer periphery of the steel column. The shear resistance ring includes two parallel ring plates, and webs are connected between the upper and lower ring plates. The adjacent partitions are spaced 45° on the circumference of the ring plate.

[0011] The horizontal beam structure in the full inverse construction method of the present utility model solves the problem of the arrangement of the longitudinal beam reinforcement when the structural beam interferes with the steel column, and at the same time avoids using complex ring beam joints at the beam-column joints, greatly reducing the difficulty of steel bar lofting and installation at the joints and improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present utility model will be further described and elaborated below with reference to the drawings.

[0013] Figure 1 is a top view of the horizontal beam structure in the full inverse construction method of the preferred embodiment of the present utility model.

[0014] Figure 2 is a structural schematic diagram of the horizontal beam structure in the full inverse construction method.

[0015] Figure 3 is a structural schematic diagram of a single beam in the prior art.

[0016] Reference numerals: 1, steel column; 11, cap column; 2, cross beam; 21, transverse reinforcement; 22, longitudinal beam reinforcement; 23, stiffening rib; 3, diagonal bracing bar; 4, shear resistance ring; 41, ring plate; 42, web. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solution of the present utility model will be more clearly and completely elaborated below by describing the preferred embodiments of the present utility model in conjunction with the drawings.

[0018] As Figure 1 and Figure 2 shown, the horizontal beam structure in the full inverse construction method of the preferred embodiment of the present utility model includes a steel column 1. The steel column 1 is arranged vertically, and two horizontal beam assemblies are provided in the middle of the steel column 1. The horizontal beam assemblies extend horizontally, and the two horizontal beam assemblies are perpendicular to each other and cross on the same plane. The horizontal beam assembly includes a pair of parallel cross beams 2, and the four cross beams 2 enclose a cross shape around the steel column 1. The specification of the cross beam 2 is 250*700mm.

[0019] The cross beam 2 includes two rows of parallel transverse steel bars 21. The transverse steel bars 21 in the same row are located on the same horizontal plane. The number of the upper and lower rows of transverse steel bars 21 is the same. A number of beam longitudinal bars 22 are provided between the upper and lower rows of transverse steel bars 21. The beam longitudinal bars 22 enclose a square shape. The long edges of the beam longitudinal bars 22 are arranged in the vertical direction. The projection of the short edges of the beam longitudinal bars 22 on the plane where the transverse steel bars 21 are located is perpendicular to the transverse steel bars 21. The spacing between adjacent beam longitudinal bars 22 is equal. A number of reinforcing bars 23 are also provided on the long edges of the beam longitudinal bars 22. The reinforcing bars 23 are parallel to the transverse steel bars 21. The spacing between adjacent reinforcing bars 23 is equal.

[0020] Stay cables 3 are respectively provided at the top and bottom of the cross beam 2. One end of the stay cable 3 is arranged at the middle part of a cross beam 2, and the other end of the stay cable 3 is arranged at the middle part of the cross beam 2 perpendicular to the previous cross beam 2. Four stay cables 3 on the same plane enclose a square shape.

[0021] A number of cap columns 11 are provided on the outer periphery of the steel column 1. The cap columns 11 are evenly distributed at equal intervals in the circumferential direction of the steel column 1 and are also evenly distributed at equal intervals in the axial direction of the steel column 1. The cap columns 11 are fixedly connected to the adjacent transverse steel bars 21. Shear resistance rings 4 are provided on the outer periphery of the steel column 1. The shear resistance rings 4 include two parallel ring plates 41. A web plate 42 is connected between the upper and lower ring plates 41. The adjacent partitions are spaced 45° on the circumference of the ring plate 41.

[0022] The horizontal beam structure in the full inverse construction method of the utility model solves the problem of the arrangement of the beam longitudinal bars when the structural beam interferes with the steel column, and at the same time avoids using a complex ring beam joint for connection at the beam-column joint, greatly reducing the difficulty of steel bar lofting and installation at the joint and improving the construction efficiency.

[0023] The above specific embodiments only describe the preferred embodiments of the utility model, rather than limiting the protection scope of the utility model. Without departing from the design concept and spirit scope of the utility model, various deformations, substitutions and improvements made by those of ordinary skill in the art to the technical solutions of the utility model according to the text description and drawings provided by the utility model shall all fall within the protection scope of the utility model. The protection scope of the utility model is determined by the claims.

Claims

1. A horizontal beam structure in a full inverse method, characterized in that: The invention comprises a steel column (1), wherein the steel column (1) is arranged in a vertical direction, and two horizontal beam assemblies are arranged in the middle of the steel column (1), and the horizontal beam assemblies extend in a horizontal direction. The two horizontal beam assemblies are perpendicular to each other and intersect on the same plane, and the horizontal beam assemblies comprise a pair of parallel cross beams (2), and the four cross beams (2) are arranged in a tic-tac-toe pattern around the steel column (1).

2. The horizontal beam structure in the full reverse method according to claim 1, characterized in that: The crossbeam (2) comprises two rows of parallel transverse steel bars (21), wherein the transverse steel bars (21) in the same row are located on the same horizontal plane, the number of the transverse steel bars (21) in the upper and lower rows is the same, a plurality of beam longitudinal bars (22) are arranged between the upper and lower rows of the transverse steel bars (21), the beam longitudinal bars (22) are arranged in a square shape, the long sides of the beam longitudinal bars (22) are arranged in a vertical direction, the projection of the short sides of the beam longitudinal bars (22) on the plane where the transverse steel bars (21) are located is perpendicular to the transverse steel bars (21), and the spacing between adjacent beam longitudinal bars (22) is equal.

3. The horizontal beam structure in the full reverse method according to claim 2, characterized in that: A plurality of reinforcing ribs (23) are also arranged on the long sides of the longitudinal reinforcement (22) of the beam. The reinforcing ribs (23) are parallel to the transverse reinforcement (21), and the spacing between adjacent reinforcing ribs (23) is equal.

4. The horizontal beam structure in the full reverse method according to claim 3 is characterized in that: A plurality of cap columns (11) are arranged on the outer periphery of the steel column (1). The cap columns (11) are evenly distributed at equal intervals in the circumferential direction of the steel column (1). The cap columns (11) are also evenly distributed at equal intervals in the axial direction of the steel column (1). The cap columns (11) are fixedly connected to adjacent transverse steel bars (21).

5. The horizontal beam structure in the full reverse method according to claim 4, characterized in that: The top and bottom of the cross beam (2) are respectively provided with oblique tie bars (3), one end of the oblique tie bar (3) is arranged in the middle of a cross beam (2), and the other end of the oblique tie bar (3) is arranged in the middle of a cross beam (2) perpendicular to the previous cross beam (2), and four oblique tie bars (3) on the same plane are arranged in a tic-tac-toe shape.

6. The horizontal beam structure in the full reverse method according to claim 5, characterized in that: An anti-shear ring (4) is provided on the outer periphery of the steel column (1), and the anti-shear ring (4) comprises two parallel ring plates (41), a web plate (42) is connected between the upper and lower ring plates (41), and adjacent partitions are spaced 45 degrees apart on the circumference of the ring plates (41).

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