Truss structure for improving lateral stiffness of super high-rise building

Abstract

The utility model discloses a truss structure for improving lateral stiffness of a super high-rise building. The truss structure comprises a core tube, an outer frame, an outrigger truss and an annular belt truss, the outrigger truss comprises a plurality of first diagonal web members used for connecting the core tube and the outer frame and a plurality of X-shaped supporting bodies arranged on the end faces of the two sides of the core tube. Each X-shaped supporting body comprises a second diagonal web member, the four second diagonal web members are connected to form the X-shaped supporting body, and the ends of the second diagonal web members of the adjacent X-shaped supporting bodies are welded to the ends of the two sides of the core tube. A plurality of transverse truss girders and a plurality of longitudinal truss girders are arranged between the two sides of the core tube provided with the X-shaped supporting bodies and the outer frame, and the transverse truss girders and the longitudinal truss girders are connected in a staggered mode; the side close to the core tube is defined as the inner side, the inner end of the first diagonal web member is welded to the end of one side of the core tube, and the outer end is welded to the outer frame; the annular belt truss is arranged on the outer frame. The anti-lateral rigidity of a building can be effectively improved, and the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to truss technical field, especially in a truss structure for improving the lateral stiffness of super high-rise building. BACKGROUND

[0002] In recent years, with the height of super high-rise building breaking through constantly, the structure lateral stiffness problem is increasingly prominent, the traditional frame-core tube structure system usually adopts the way of increasing component section size to satisfy the specification requirement, but this can lead to the building use space reduction, and greatly increase the steel consumption. In the prior art, although single outrigger truss system can provide certain stiffness strengthening, but its effective range is limited, when the height exceeds 20-30 layers, the structure top lateral displacement often exceeds the specification limit. SUMMARY

[0003] In order to solve the above technical problems existing in the prior art, the utility model provides a truss structure for improving the lateral stiffness of super high-rise building, and innovatively proposes a "layered reinforcement + step-by-step construction" collaborative system. The system adopts the composite structure form of "X-shaped outrigger truss + peripheral ring belt truss", and significantly improves the structure stiffness through double lateral resistance mechanism.

[0004] The utility model discloses the technical scheme is:

[0005] A truss structure for improving the lateral stiffness of super high-rise building, characterized in that, comprising core tube, outer frame, outrigger truss and ring belt truss, the outrigger truss includes a plurality of first inclined web members for connecting the core tube and the outer frame and a plurality of X-shaped support bodies arranged on the two side end faces of the core tube, the X-shaped support body includes second inclined web members, four second inclined web members are connected to form an X-shaped support body, and the end portions of the second inclined web members of adjacent X-shaped support bodies are welded at the two side end portions of the core tube, a plurality of transverse truss beams and a plurality of longitudinal truss beams are arranged between the side of the core tube on which the X-shaped support body is installed and the outer frame, the plurality of transverse truss beams and longitudinal truss beams are interconnected, and the two ends of the transverse truss beam are arranged on the longitudinal truss beam, and the two ends of the longitudinal truss beam are arranged on the core tube and the outer frame.

[0006] Define the side close to the core tube as the inner side, the inner end of the first inclined web member is welded with the side end portion of the core tube, and the outer end is welded with the outer frame.

[0007] The ring belt truss is arranged on the outer frame.

[0008] Further, the core tube includes steel columns, steel plate walls and first steel beams, the top and bottom of two adjacent steel columns are connected by first steel beams respectively, the adjacent steel columns are fixedly connected by steel plate walls, and the plurality of steel columns, first steel beams and steel plate walls jointly enclose the core tube in a square shape.

[0009] Further, the first steel beam is welded to the steel column.

[0010] Further, the outer frame comprises a concrete-filled steel tubular column and a second steel beam, the top and bottom of adjacent reinforced concrete columns are connected by the second steel beam respectively, the core tube is connected to the concrete-filled steel tubular column by the second steel beam, and the transversely arranged concrete-filled steel tubular columns and the longitudinally arranged concrete-filled steel tubular columns are connected by a horizontal chord beam and a vertical chord beam respectively.

[0011] Further, the girth truss is composed of a plurality of third inclined web members, the third inclined web members are inclinedly arranged between the upper and lower second steel beams, the ends of the third inclined web members are connected to the ends of adjacent third inclined web members to form a V-shaped inclined web member group.

[0012] Further, the ends of the third inclined web members are welded to the upper second steel beam or the lower second steel beam.

[0013] Further, the outrigger truss spans three floors in the building.

[0014] Further, the girth truss spans one floor in the building.

[0015] Compared with the prior art, the beneficial effects of the utility model are embodied in:

[0016] 1. The truss structure of the utility model adopts a composite structure form of "X-shaped outrigger truss + peripheral girth truss", and the structural rigidity is significantly improved through a double lateral resistance mechanism, and the practicality is strong.

[0017] 2. The building with the truss structure of the utility model meets the requirements of the relevant building structure specifications in displacement ratio and lateral rigidity ratio through finite element analysis.

[0018] 3. In terms of construction technology, the utility model develops an innovative method of "node pre-assembly + high-altitude rod supplementing", and simultaneously adopts an installation process of "core tube first, and outer frame segmented follow-up", so that the key construction period can be shortened, and the design has been verified in a certain super high-rise double-tower project. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the overall structure of the truss structure of the utility model;

[0020] Figure 2 It is a partial schematic view of the utility model;

[0021] Figure 3 It is a schematic view of the construction process of the outrigger truss in the utility model;

[0022] Figure 4It is the construction process schematic view of the ring belt truss in the utility model. DETAILED DESCRIPTION

[0023] The specific embodiments of the utility model embodiments are described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the utility model embodiments, and are not used to limit the utility model embodiments.

[0024] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0025] The utility model will be described in detail below with reference to the drawings and in combination with exemplary embodiments.

[0026] Reference Figure 1 The utility model discloses a truss structure for improving the lateral stiffness of super high-rise building, including core barrel 1, outer frame 2, outrigger truss 3 and ring belt truss 4;The outrigger truss 3 includes a plurality of first inclined web members 11 for connecting core barrel 1 and outer frame 2 and a plurality of X type support bodies arranged at the both sides of core barrel 1;The X type support body includes second inclined web member 10, four second inclined web members 10 are connected to form X type support body, and the end of the second inclined web member 0 of adjacent X type support body is welded at the both sides of core barrel 1;The both sides of core barrel 1 where X type support body is installed are provided with a plurality of transverse truss beams and a plurality of longitudinal truss beams between outer frame 2, a plurality of transverse truss beams and longitudinal truss beams are connected with each other, and the both ends of transverse truss beam are arranged on longitudinal truss beam respectively, and the both ends of longitudinal truss beam are arranged on core barrel 1 and outer frame 2 respectively;

[0027] The side close to core barrel 1 is defined as the inner side, and the inner end of first inclined web member 11 is welded with the side end of core barrel 1, and the outer end is welded with outer frame 2;

[0028] The ring belt truss 4 is arranged on the outer frame 2.

[0029] In an embodiment, the core barrel 1 includes steel column 5, steel plate wall 6 and first steel beam 7, the top and bottom of two adjacent steel columns 5 are connected by first steel beam 7 respectively, and the adjacent steel columns 5 are fixedly connected by steel plate wall 6, and a plurality of steel columns 5, first steel beams 7 and steel plate walls 6 jointly enclose to form square core barrel 1.

[0030] In an embodiment, the first steel beam 7 is welded with the steel column 5.

[0031] In an embodiment, the outer frame 2 comprises steel pipe concrete columns 8 and second steel beams 9, the top and bottom of adjacent steel reinforced concrete columns 8 are connected by the second steel beams 9 respectively, the core tube 1 is connected with the steel pipe concrete columns 8 by the second steel beams 9, and the transversely arranged steel pipe concrete columns 9 and the longitudinally arranged steel pipe concrete columns 9 are connected by horizontal chord beams and vertical chord beams respectively.

[0032] In an embodiment, the girdle truss 4 is composed of a plurality of third inclined web members 12, the third inclined web members 12 are arranged obliquely between the upper and lower second steel beams, and the ends of the third inclined web members are connected with the ends of adjacent third inclined web members to form a V-shaped inclined web member group.

[0033] In an embodiment, the ends of the third inclined web members 2 are welded on the upper second steel beam or the lower second steel beam 9.

[0034] In an embodiment, the outrigger truss 3 spans three floors in the building.

[0035] In an embodiment, the girdle truss 4 spans one floor in the building.

[0036] The specific construction process of the outrigger truss 3 of the utility model is as follows:

[0037] A1. The steel columns 5, the steel plate walls 6 and the first steel beams 7 of the first and second floors of the core tube are sequentially installed;

[0038] A2. The steel columns 5, the steel plate walls 6, the first steel beams 7 of the third floor of the core tube and the second inclined web members 10 of the second floor of the core tube are installed;

[0039] A3. After the core tube reaches the strength, the steel pipe concrete columns 8 and the second steel beams 9 of the first and second floors of the outer frame are sequentially installed;

[0040] A4. The first inclined web members 11 of the first floor of the outer frame are installed;

[0041] A5. The steel pipe concrete columns 8 and the second steel beams 9 of the third floor of the outer frame are installed;

[0042] A6. The first inclined web members 11 of the second floor of the outer frame are installed.

[0043] The specific construction process of the girdle truss 4 of the utility model is as follows:

[0044] B1. The steel pipe concrete columns 8 of the outer frame are installed;

[0045] B2. The second steel beams 9 of the outer frame are installed;

[0046] B3. The inclined web members 12 of the outer frame are installed.

[0047] The first diagonal web member 11 of the outrigger truss 3 and the third diagonal web member 12 of the belt truss 4 are temporarily fixed by using connecting plates at both ends during installation, and then welded after the main structure is completed.

[0048] The outrigger truss 3 and the belt truss 4 are mainly divided into single pieces according to nodes, web members and chord members, and are installed by using the method of in-situ assembly and high-altitude rod supplementing.

[0049] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A truss structure for improving the lateral stiffness of super high-rise buildings, characterized in that, The system includes a core tube (1), an outer frame (2), an outrigger truss (3), and a ring truss (4). The outrigger truss (3) includes several first diagonal web members (11) for connecting the core tube (1) and the outer frame (2) and several X-shaped supports set on both sides of the core tube (1). The X-shaped supports include second diagonal web members (10), and four second diagonal web members (10) are connected to form an X-shaped support. The ends of the second diagonal web members (10) of adjacent X-shaped supports are welded to the ends of both sides of the core tube (1). Multiple transverse truss beams and multiple longitudinal truss beams are set between the two sides of the core tube with the X-shaped supports and the outer frame (2). The multiple transverse truss beams and longitudinal truss beams are interwoven and connected to each other. The ends of the transverse truss beams are respectively set on the longitudinal truss beams, and the ends of the longitudinal truss beams are respectively set on the core tube (1) and the outer frame (2). The side closer to the core tube (1) is defined as the inner side. The inner end of the first inclined web member (11) is welded to one end of the core tube (1), and the outer end is welded to the outer frame (2). The ring truss (4) is mounted on the outer frame (2).

2. A truss structure for improving the lateral stiffness of super high-rise buildings as described in claim 1, characterized in that, The core tube (1) includes steel columns (5), steel plate walls (6) and a first steel beam (7). The top and bottom of two adjacent steel columns (5) are connected by the first steel beam (7), and adjacent steel columns (5) are fixedly connected by steel plate walls (6). Several steel columns (5), the first steel beam (7) and the steel plate walls (6) together enclose a square core tube (1).

3. A truss structure for improving the lateral stiffness of super high-rise buildings as described in claim 2, characterized in that, The first steel beam (7) is welded to the steel column (5).

4. A truss structure for improving the lateral stiffness of super high-rise buildings as described in claim 2, characterized in that, The outer frame (2) includes steel-concrete composite columns (8) and second steel beams (9). The top and bottom of adjacent steel-concrete composite columns (8) are connected by the second steel beams (9). The core tube (1) is connected to the steel-concrete composite columns (8) by the second steel beams (9). The steel-concrete composite columns (8) arranged laterally and the steel-concrete composite columns (8) arranged longitudinally are connected by horizontal chord beams and vertical chord beams, respectively.

5. A truss structure for improving the lateral stiffness of super high-rise buildings as described in claim 2, characterized in that, The ring truss (4) is composed of several third diagonal web members (12). The third diagonal web members (12) are inclined between the upper and lower second steel beams. The ends of the third diagonal web members are connected to the ends of the adjacent third diagonal web members to form a V-shaped diagonal web member group.

6. A truss structure for improving the lateral stiffness of super high-rise buildings as described in claim 5, characterized in that, The end of the third diagonal brace (12) is welded to the upper second steel beam or the lower second steel beam (9).

7. A truss structure for improving the lateral stiffness of super high-rise buildings as described in claim 1, characterized in that, The outrigger truss (3) spans three floors in the building.

8. A truss structure for improving the lateral stiffness of super high-rise buildings as described in claim 1, characterized in that, The ring truss (4) spans one floor in the building.

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