Connection truss for connecting asymmetric double-tower structure

Abstract

The utility model discloses a connecting truss for connecting an asymmetric double-tower structure. The connecting truss comprises three identical and independent three-layer-height truss bodies, the single truss body comprises a plurality of square steel tube concrete columns, chord members, diagonal web members, cast steel nodes, steel column nodes and wall attaching pieces, and the adjacent square steel tube concrete columns are connected through primary and secondary beams; the upper portion and the lower portion of the square steel tube concrete column are connected with the core tube shear walls on the two sides through a plurality of horizontally-arranged chord members respectively, the circular steel tube concrete column is arranged on the lower portion of the square steel tube concrete column, and the circular steel tube concrete column is connected with the square steel tube concrete column through a cast steel joint. The upper part of the square steel tube concrete column is connected with the chord members on the two sides through steel column nodes; the upper parts of the diagonal web members are connected with the steel column joints, and the lower parts are connected with the core tube shear wall through the wall-attached pieces; a plurality of connecting beams are arranged between every two adjacent square steel tube concrete columns in each layer. The utility model has the advantages of good stress performance and strong practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to truss technical field, especially relate to a contact truss for connecting asymmetric double tower structure. BACKGROUND

[0002] In recent years, with the diversification of urban building function demand, double tower connected structure is widely used in super high-rise building because of its high space utilization rate, unique modeling and other advantages. However, when the double tower has significant differences in plane layout, layer height, structural stiffness and other parameters, it faces many technical bottlenecks. First, the existing rigid connection method requires similar tower stiffness, otherwise the connecting body bears excessive internal force due to different vibration, resulting in large component section size and poor economy. While the sliding connection allows certain displacement, but the deformation joint width needs to be significantly increased, and the anti-collision and anti-falling control is difficult. Secondly, high-altitude connected truss usually adopts segmented hoisting or integral lifting process, but limited by the difference in tower stiffness, the assembly precision is difficult to control. At the same time, in the prior art, in order to meet the stiffness coordination requirement, large section steel members or complex reinforcement measures are often used, resulting in increased steel consumption, and the collaborative design of concrete and steel structure lacks optimization, which is difficult to balance cost and performance. SUMMARY

[0003] To solve the above technical problems existing in the prior art, the utility model provides a contact truss for connecting asymmetric double tower structure. The utility model adopts the form that three identical and independent three-layer high trusses are connected through connecting beams to transmit the upper axial force to the left and right core tubes and the lower inclined columns, coordinate the deformation of the left and right sides of the structure and form the overall stiffness, and reduce the section size of the single direction component. At the same time, the utility model combines the methods of tower crane in-situ assembly and high-altitude rod supplementing to improve the assembly precision and welding quality.

[0004] The technical scheme adopted by the utility model is:

[0005] A contact truss for connecting asymmetric double tower structure, characterized in that it comprises three identical and independent three-layer high truss bodies, and adjacent truss bodies are connected through connecting beams (1).

[0006] The single-bay truss body comprises a plurality of square steel pipe concrete columns (2), chord bars (3), inclined web members (4), cast steel nodes (5), steel column nodes (6) and wall attachment members (7), and adjacent square steel pipe concrete columns (2) are connected through primary and secondary beams; the upper and lower parts of the square steel pipe concrete columns (2) are connected with two side core tube shear walls through a plurality of horizontally arranged chord bars (3), and the lower part of the square steel pipe concrete columns (2) is provided with a round steel pipe concrete column, the round steel pipe concrete column is connected with the square steel pipe concrete columns (2) through the cast steel nodes (5), and the upper part of the square steel pipe concrete columns (2) is connected with the two side chord bars (3) through the steel column nodes (6); the upper part of the inclined web member (4) is connected with the steel column node (6), and the lower part is connected with the core tube shear wall through the wall attachment member (7);

[0007] A plurality of tie beams (1) are arranged between adjacent square steel pipe concrete columns (2) of each layer.

[0008] Further, an X-shaped support frame is arranged between adjacent square steel pipe concrete columns (2) of each layer, and the X-shaped support frame is formed by four tie beams (1).

[0009] Further, both ends of the chord bar (3) are connected with the square steel pipe concrete column (2) and the core tube shear wall through pre-buried members respectively.

[0010] Further, the wall attachment member (7) and the cavity of the outer steel plate of the connected core tube shear wall need to be poured with self-compacting concrete.

[0011] Further, the lower part of the square steel pipe concrete column (2) and the round steel pipe concrete column are connected with the cast steel node, and the upper part of the square steel pipe concrete column (2) is connected with the chord bar (3) and the inclined web member (4) and the steel column node (6) through welding.

[0012] Further, different sizes of chord bars (3) are connected through prefabricated members to smoothly change the cross-sectional size.

[0013] Compared with the prior art, the beneficial effects of the utility model are reflected in:

[0014] 1. The three-bay three-layer high trusses which are the same and independent are connected through tie beams, so that the upper axial force is transmitted to the left and right core tubes and the inclined columns of the lower part, the deformation of the left and right sides of the structure is coordinated, the overall rigidity is formed, and the cross-sectional size of the single-direction component is reduced.

[0015] 2. The method of in-situ assembly of the tower crane and high-altitude supplemental rod improves the assembly precision and welding quality.

[0016] 3, The utility model discloses good stress performance, practicality is strong, adopt the building of the contact truss of the utility model, through finite element analysis, in floor shear ratio, displacement ratio, lateral rigidity ratio, shearing bearing capacity ratio, maximum displacement all satisfy the requirement of building structure relevant specification. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of a truss structure of the utility model;

[0018] Figure 2 It is the construction process schematic diagram of a truss structure of the utility model Figure One ;

[0019] Figure 3 It is the construction process schematic diagram of a truss structure of the utility model Figure Two .

[0020] In the drawing: 1, connecting beam;2, square steel pipe concrete column;3, chord;4, inclined web member;5, cast steel node;6, steel column node;7, wall attachment. DETAILED DESCRIPTION

[0021] The specific embodiments of the embodiments of the application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the embodiments of the application, and are not used to limit the embodiments of the application.

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0023] The application will be described in detail below with reference to the accompanying drawings and in combination with exemplary embodiments.

[0024] Reference Figure 1 The utility model discloses a contact truss for connecting asymmetric double-tower building structure, including three same and independent three-layer high truss body, and the adjacent truss body is connected through connecting beam 1;

[0025] Single truss body includes several square steel pipe concrete columns 2, chord 3, inclined web member 4, cast steel node 5, steel column node 6 and wall attachment 7, and the adjacent square steel pipe concrete column 2 is connected through primary and secondary beams;The upper part and the lower part of the square steel pipe concrete column 2 are connected with the both sides core tube shear wall through several horizontally arranged chords 3 respectively, and the lower part of the square steel pipe concrete column 2 is provided with a round steel pipe concrete column, and the round steel pipe concrete column is connected with the square steel pipe concrete column 2 through the cast steel node 5, and the upper part of the square steel pipe concrete column 2 is connected with the both sides chord 3 through the steel column node 6;The upper part of the inclined web member 4 is connected with the steel column node 6, and the lower part is connected with the core tube shear wall through the wall attachment 7;

[0026] Several tie beams 1 are arranged between each layer of adjacent square steel pipe concrete columns 2.

[0027] In an embodiment, an X-shaped support frame is arranged between each layer of adjacent square steel pipe concrete columns 2, and the X-shaped support frame is formed by four tie beams 1.

[0028] Further, both ends of the chord 3 are connected with the square steel pipe concrete column 2 and the core tube shear wall through pre-buried parts respectively.

[0029] In an embodiment, the wall-attached part 7 needs to pour self-compacting concrete in the cavity of the outer steel plate of the connected core tube shear wall.

[0030] In an embodiment, the lower part of the square steel pipe concrete column 2 and the connection part of the round steel pipe concrete column and the cast steel node, and the upper part of the connection part of the chord 3 and the inclined web member 4 and the steel column node 6 are all welded.

[0031] In an embodiment, different sizes of chords 3 are connected through prefabricated parts to smoothly change the cross-sectional size.

[0032] It should be noted that the utility model is a truss structure, and the construction adopts the method of in-situ assembly and high-altitude rod supplementing by using a tower crane, and the construction process is shown with reference to Figure 2 and Figure 3 , and the specific construction process is as follows:

[0033] A. The cast steel node 5, the square steel pipe concrete column 2, the chord 3 and the tie beam 1 of the first layer of trusses are installed to form a stable structure system.

[0034] B. The square steel pipe concrete column 2, the wall-attached part 7, the chord 3 and the tie beam 1 of the second layer are installed.

[0035] C. The steel column node 6, the square steel pipe concrete column 2 of the third layer and the inclined web member 4 of the first layer are installed.

[0036] D. The chord 3, the tie beam 1 and the remaining inclined web member 4 of the third layer are installed.

[0037] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A connecting truss for connecting an asymmetrical twin-tower structure, characterized in that, It includes three identical and independent three-story truss bodies, and adjacent truss bodies are connected by connecting beams (1); The single truss body includes several square steel tube concrete columns (2), chord members (3), diagonal web members (4), cast steel nodes (5), steel column nodes (6), and wall attachments (7). Adjacent square steel tube concrete columns (2) are connected by primary and secondary beams. The upper and lower parts of the square steel tube concrete columns (2) are connected to the shear walls of the core tube on both sides by several horizontally arranged chord members (3). The lower part of the square steel tube concrete columns (2) is provided with round steel tube concrete columns. The round steel tube concrete columns are connected to the square steel tube concrete columns (2) by cast steel nodes (5). The upper part of the square steel tube concrete columns (2) is connected to the chord members (3) on both sides by steel column nodes (6). The upper part of the diagonal web members (4) is connected to the steel column nodes (6), and the lower part is connected to the shear walls of the core tube by wall attachments (7). Several connecting beams (1) are provided between adjacent square steel tube concrete columns (2) on each floor.

2. A connecting truss for connecting an asymmetrical twin-tower structure according to claim 1, characterized in that, An X-shaped support frame is provided between each adjacent square steel tube concrete column (2), and the X-shaped support frame is formed by connecting four connecting beams (1).

3. A connecting truss for connecting an asymmetrical twin-tower structure according to claim 1, characterized in that, Both ends of the chord (3) are connected to the square steel tube concrete column (2) and the core tube shear wall respectively through embedded parts.

4. A connecting truss for connecting an asymmetrical twin-tower structure according to claim 1, characterized in that, The cavity between the wall-mounted component (7) and the steel plate encasing the shear wall of the connected core tube needs to be filled with self-compacting concrete.

5. A connecting truss for connecting an asymmetrical twin-tower structure according to claim 1, characterized in that, The lower part of the square steel tube concrete column (2) and the connection between the round steel tube concrete column and the cast steel node, as well as the upper part of the connection between the chord (3) and the diagonal web member (4) and the steel column node (6), are all welded.

6. A connecting truss for connecting an asymmetrical twin-tower structure according to claim 1, characterized in that, The cross-sectional dimensions of chords of different sizes (3) are smoothly transitioned through prefabricated components.

Images