Frame column structure internally provided with embedded columns

Abstract

A frame column structure internally provided with embedded columns comprises a steel pipe inner column body, the embedded columns and an outer concrete layer. The embedded columns are arranged on the outer side of the steel pipe inner column body at intervals in the circumferential direction and tightly attached to the steel pipe inner column body. A profile steel connecting piece is arranged on the outer wall of the steel pipe inner column body and located in the embedded column, and the profile steel connecting piece and the steel pipe inner column body are welded. Anti-shearing pieces are arranged on the outer wall of the steel pipe inner column body at intervals; an outer ring reinforcement cage and an inner ring reinforcement cage are arranged on the outer side of the steel pipe inner column body; the inner ring reinforcement cage is arranged at the position close to the steel pipe inner column body, and the inner ring reinforcement cage penetrates through the profile steel connecting piece at the position corresponding to the profile steel connecting piece; the outer ring reinforcement cage is arranged on the outer side of the group of profile steel connecting pieces; tie bars are arranged between the inner ring reinforcement cage and the corresponding outer ring reinforcement cage. The outer concrete layer is poured on the outer side of the steel pipe inner column body, and the outer concrete layer and the embedded column concrete are integrally poured and formed. The technical problems that a traditional structural column is poor in lateral force resistance and can not meet the requirements of maintenance and drainage are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a frame column structure with hidden columns arranged inside. Background Art

[0002] The structural system of a stadium consists of a steel roof structure, a concrete stand structure and a foundation structure from top to bottom. The entire roof structure is supported on the second-floor stand platform by 16 slender steel columns and 2 end columns. The axis arrangement of the concrete stand and the roof structure is logically coordinated. The roof structure columns do not need to be converted and are directly supported on the concrete columns under the stands, so the structure is directly and efficiently stressed. The flat arch formed by the end columns and the flat arch is the most important lateral force resistance system of this structure, which can bear 100% of the horizontal load. Therefore, in view of the lateral force resistance, maintenance and drainage requirements of the end columns at both ends, the end columns at both ends need to have good stress performance and cross-sectional space requirements.

[0003] Use new content

[0004] The utility model aims to provide a frame column structure with concealed columns, so as to solve the technical problems that the traditional structural columns have poor lateral force resistance and cannot meet the requirements of maintenance and drainage.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions.

[0006] A frame column structure with hidden columns inside, comprising a steel tube inner column, hidden columns and an outer concrete layer; the hidden columns are arranged at intervals along the annular direction on the outer side of the steel tube inner column, and the hidden columns are arranged close to the steel tube inner column; on the outer wall of the steel tube inner column, a steel connector is arranged vertically along the inner side of the hidden column, and the steel connector is welded to the steel tube inner column; on the outer wall of the steel tube inner column, shear members are arranged at intervals at the position between adjacent steel connectors; an outer ring steel cage and an inner ring steel cage are arranged on the outer side of the steel tube inner column; the inner ring steel cage is arranged at a position close to the steel tube inner column, and the inner ring steel cage passes through the steel connector at the position corresponding to the steel connector; the outer ring steel cage is arranged on the outer side of a group of steel connectors; tension bars are arranged between the inner ring steel cage and the corresponding outer ring steel cage; the outer concrete layer is cast on the outer side of the steel tube inner column, and the outer concrete layer is cast integrally with the hidden column concrete.

[0007] Preferably, the horizontal section of the inner cylinder of the steel tube is enclosed by semicircular arc segments on both sides and a straight segment connecting the two semicircular arc segments; the radius of the circle where the semicircular arc segments are located is at least 900 mm, and the length of the straight segment is not less than 600 mm.

[0008] Preferably, the steel connector is a T-shaped steel or a channel steel; and the T-shaped steel or the channel steel is welded to the inner column of the steel pipe.

[0009] Preferably, hidden column stirrups are provided in the hidden column; and the tension reinforcement is densely arranged in the hidden column.

[0010] Preferably, the cross-sectional dimensions of the concealed column are 250 mm in length × 600 mm in width, and the spacing between adjacent concealed columns is 600 mm to 1000 mm; the thickness of the outer concrete layer is not less than 250 mm.

[0011] Compared with the prior art, the utility model has the following characteristics and beneficial effects.

[0012] 1. The frame column structure of the utility model includes a steel tube inner column, a concealed column and an outer concrete layer; the internal cavity of the steel tube inner column meets the requirements of maintenance and drainage; at the same time, the concealed column and the outer concrete layer are arranged on the outer side of the steel tube inner column to meet the bearing requirements of the frame column structure, and the circumferential integrity of the supporting concrete column is strengthened by the ring beam and the cast-in-place horizontal floor slab of the second-floor platform.

[0013] 2. In the utility model, a steel connector is arranged on the inner column of the steel tube and at the position corresponding to the hidden column. The steel connector can be used as a lateral support to increase the lateral force resistance of the inner column of the steel tube. The arrangement of the steel connector also increases the integrity of the inner column of the steel tube and the hidden column, solving the technical problem of poor lateral force resistance of traditional structural columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the horizontal section structure of the frame column structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the horizontal section structure of the inner cylinder of the steel tube in the utility model.

[0017] Figure 3 It is a schematic diagram of the horizontal section structure of the concealed column in the utility model.

[0018] Figure numerals: 1 - inner column of steel tube, 1.1 - rectangular section segment, 1.2 - semicircular segment, 2 - hidden column, 3 - outer concrete layer, 4 - steel connector, 5 - shear member, 6 - inner ring steel cage, 7 - outer ring steel cage, 8 - tension bar, 9 - hidden column stirrups. DETAILED DESCRIPTION

[0019] like Figure 1-3As shown, the frame column structure with hidden columns includes a steel tube inner column 1, hidden columns 2 and an outer concrete layer 3; the hidden columns 2 are arranged at intervals along the annular direction on the outside of the steel tube inner column 1, and the hidden columns 2 are arranged close to the steel tube inner column 1; on the outer wall of the steel tube inner column 1, a steel connector 4 is arranged vertically inside the hidden column 2, and the steel connector 4 is welded to the steel tube inner column 1; on the outer wall of the steel tube inner column 1, shear members 5 are arranged at intervals at the position between adjacent steel connectors 4; the steel tube An outer ring steel cage 7 and an inner ring steel cage 6 are arranged on the outside of the inner column 1; the inner ring steel cage 6 is arranged at a position close to the steel tube inner column 1, and the inner ring steel cage 6 passes through the steel connector 4 at the position of the corresponding steel connector 4; the outer ring steel cage 7 is arranged on the outside of a group of steel connectors 4; a tensioning rod 8 is arranged between the inner ring steel cage 6 and the corresponding outer ring steel cage 7; the outer concrete layer 3 is cast on the outside of the steel tube inner column 1, and the outer concrete layer 3 is cast integrally with the concrete of the hidden column 2.

[0020] In this embodiment, the horizontal section of the steel tube inner cylinder 1 is enclosed by the semicircular arc segments 1.2 on both sides and the straight segment 1.1 connecting the two semicircular arc segments 1.2, and the interior of the steel tube inner cylinder 1 is a cavity; the radius of the circle where the semicircular arc segments 1.2 are located is at least 900 mm, and the length of the straight segment 1.1 is not less than 600 mm; an inspection port is reserved at the bottom of the steel tube inner cylinder 1.

[0021] In this embodiment, the steel connector 4 is a T-shaped steel or a channel steel; and the T-shaped steel or the channel steel is connected to the inner column 1 of the steel pipe by welding.

[0022] In this embodiment, hidden column stirrups 9 are provided in the hidden column 2 ; and the tie bars 8 are densely arranged in the hidden column 2 .

[0023] In this embodiment, the cross-sectional dimensions of the concealed column 2 are 250 mm in length and 600 mm in width, and the spacing between adjacent concealed columns 2 is 600 mm to 1000 mm; the thickness of the outer concrete layer 3 is not less than 250 mm.

[0024] In this embodiment, the inner ring steel cage includes inner ring stirrups and inner ring vertical bars; the diameter of the inner ring vertical bars is 28mm, the spacing of the inner ring vertical bars in the hidden column 2 is 100mm, and the spacing of the inner ring vertical bars outside the hidden column 2 is 200mm. The diameter of the inner ring stirrups is 10mm, and the spacing is not more than 200mm. A perforation is provided on the steel connector at the position corresponding to the inner ring stirrups. The outer ring steel cage includes outer ring stirrups and outer ring vertical bars; the diameter of the outer ring vertical bars is 25mm, the spacing of the outer ring vertical bars in the hidden column 2 is 125mm, and the spacing of the outer ring vertical bars outside the hidden column 2 is 250mm. The diameter of the outer ring stirrups is 14mm, and the spacing is not more than 100mm; the setting of the inner ring steel cage and the outer ring steel cage not only increases the bearing capacity of the outer concrete layer and the crack resistance of the concrete, but also improves the integrity of the outer concrete layer with the hidden column 2 and the steel pipe inner column 1.

[0025] In this embodiment, the diameter of the tie rod 8 is 10 mm, the spacing between the tie rods 8 outside the hidden column 2 is 200 mm, and the spacing between the tie rods 8 outside the hidden column 2 is 100 mm.

[0026] In this embodiment, the vertical spacing of the hidden column stirrups 9 is 100 mm.

[0027] In this embodiment, the concrete layer is made of ordinary concrete, high-strength concrete or self-compacting concrete.

[0028] The above embodiments are not exhaustive of specific implementation methods, and there may be other embodiments. The purpose of the above embodiments is to illustrate the utility model rather than to limit the protection scope of the utility model. All applications derived from simple changes of the utility model fall within the protection scope of the utility model.

Claims

1. A frame column structure with a hidden column inside, characterized in that: The invention comprises a steel tube inner column (1), a concealed column (2) and an outer concrete layer (3); the concealed columns (2) are arranged at intervals along the circumferential direction on the outer side of the steel tube inner column (1), and the concealed columns (2) are arranged closely to the steel tube inner column (1); a steel connecting piece (4) is arranged on the outer wall of the steel tube inner column (1) and located inside the concealed column (2) along the vertical length, and the steel connecting piece (4) and the steel tube inner column (1) are welded; shearing pieces (5) are arranged at intervals on the outer wall of the steel tube inner column (1) and located between adjacent steel connecting pieces (4); the outer side of the steel tube inner column (1) is provided with An outer ring steel cage (7) and an inner ring steel cage (6) are provided; the inner ring steel cage (6) is arranged at a position close to the inner column (1) of the steel tube, and the inner ring steel cage (6) passes through the steel connection piece (4) at the position of the corresponding steel connection piece (4); the outer ring steel cage (7) is arranged on the outside of a group of steel connection pieces (4); a tensioning bar (8) is arranged between the inner ring steel cage (6) and the corresponding outer ring steel cage (7); the outer concrete layer (3) is cast on the outside of the inner column (1) of the steel tube, and the outer concrete layer (3) and the concrete of the concealed column (2) are cast in one piece.

2. The frame column structure with built-in concealed columns according to claim 1, characterized in that: The horizontal section of the inner cylinder (1) of the steel tube is enclosed by the semicircular arc segments (1.2) on both sides and the straight segment (1.1) connecting the two semicircular arc segments (1.2); the radius of the circle where the semicircular arc segments (1.2) are located is at least 900 mm, and the length of the straight segment (1.1) is not less than 600 mm.

3. The frame column structure with built-in concealed columns according to claim 1, characterized in that: The steel connector (4) is a T-shaped steel or a channel steel; and the T-shaped steel or the channel steel is welded to the inner column (1) of the steel pipe.

4. The frame column structure with built-in concealed columns according to claim 1, characterized in that: The hidden column (2) is provided with hidden column stirrups (9); and the tension bars (8) are densely arranged in the hidden column (2).

5. The frame column structure with built-in concealed columns according to claim 1, characterized in that: The cross-sectional dimensions of the concealed column (2) are 250 mm in length and 600 mm in width, and the spacing between adjacent concealed columns (2) is 600 mm to 1000 mm; the thickness of the outer concrete layer (3) is not less than 250 mm.

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