CN115928876A - A Supporting Frame of the Inverse Structural Transformation System - Google Patents

Abstract

The invention discloses a supporting frame of a reverse construction method structure conversion system, which comprises two groups of steel pipe columns, wherein the two groups of steel pipe columns are vertically arranged on the ground side by side, concrete is poured into the steel pipe columns, and the concrete forms a concrete column in the steel pipe columns; the upper wall supporting beam is connected to the upper parts of the two groups of steel pipe columns in a penetrating manner; the lower wall supporting beam structure is the same as the upper wall supporting beam structure, and the lower wall supporting beam is connected to the lower parts of the two groups of steel pipe columns in a penetrating manner; the steel supports are arranged between the two groups of steel pipe columns, and the steel supports are connected with the upper wall supporting beam and the lower wall supporting beam; the invention is suitable for the eccentric structure main body construction adopting the vertical synchronous reverse construction method; the structure is simple, the structure is reliable, the shearing resistance of the vertical supporting structure of the reverse construction method is improved, the waste of the construction period is avoided, and the construction efficiency and the structural reliability are guaranteed.

Description

A Supporting Frame of a Reversed Structural Transformation System

technical field

The invention relates to the technical field of civil engineering construction, in particular to a supporting frame of a structural transformation system of an upside-down method.

Background technique

In the construction process of the upper and lower synchronous top-down method, the main structure is limited by the structural form and the layout of the construction site, and there are often eccentric structures that cannot be landed. It is necessary to transfer the eccentric load through the inclined column conversion structure. For the conventional top-down construction, the resulting The horizontal force has high requirements on the rigidity of the lateral movement of the structure, which cannot meet the construction needs and even affect the construction safety, causing great harm to the building.

In the actual construction process, the conventional upper and lower synchronous reverse construction method only needs to install a layer of supporting wall beams on the first floor to meet the upper load requirements. For the eccentric structure of the main building that cannot meet the upper and lower penetration, the conventional structural conversion system cannot be realized. The up-and-down synchronous top-down construction of the eccentric structure has not yet been researched on the relevant construction technology in China. At this time, it is necessary to innovate and design a new structure conversion system to solve the problem of using the upper and lower synchronous reverse construction technology for eccentric structures.

Contents of the invention

The purpose of the present invention is to provide a supporting frame of the reverse construction conversion system, which solves the problem that the conventional structural conversion system cannot realize the synchronous top and bottom construction of the eccentric structure.

The purpose of the present invention can be achieved through the following technical solutions:

A support frame for a structural conversion system of the reverse method, comprising steel pipe columns, two sets of steel pipe columns are arranged vertically side by side on the ground, concrete is poured inside the steel pipe columns, and the concrete forms concrete inside the steel pipe columns column;

Supporting wall beams, the supporting wall beams are connected through the upper parts of two sets of steel pipe columns;

The lower supporting wall beam, the structure of the lower supporting wall beam is the same as that of the upper supporting wall beam, and the lower supporting wall beam is connected through the lower part of two sets of steel pipe columns;

Steel support, the steel support is arranged between two groups of steel pipe columns, and the steel support connects the upper supporting wall beam and the lower supporting wall beam.

As a further solution of the present invention: the upper and lower parts of the steel pipe column are provided with beam molding holes, and the beam molding holes are the same as the cross-sectional structure of the upper wall beam and the lower wall beam in the width direction.

As a further solution of the present invention: the steel pipe column is provided with a locking hole, the locking hole communicates with the beam molding hole, and a locking bolt is threadedly installed at the locking hole.

As a further solution of the present invention: the steel support has an X-shaped structure, and the four ends of the steel support are fixedly provided with connectors, and the connectors are connected to the steel pipe column through side bolts.

As a further solution of the present invention: the connecting piece includes an arc-shaped plate, the lower end of which is fixedly provided with a support plate, and the arc-shaped plate is provided with a plurality of side threaded holes matched with side bolts.

As a further solution of the present invention: the support plate is provided with a plurality of bottom threaded holes, and lower bolts are installed in the bottom threaded holes.

As a further solution of the present invention: the steel pipe column is fixedly welded with a threaded sleeve, and the threaded sleeve is provided with a threaded hole matched with a side bolt.

As a further solution of the present invention: the connecting piece and the steel pipe column and the upper and lower supporting wall beams are all fixed by welding, and the connecting piece is installed through the side bolt and the lower bolt, so that the connecting piece is positioned accurately during welding and does not A bracket is required to support the steel support, and the welding is convenient and accurate.

Beneficial effects of the present invention:

(1) The present invention is suitable for the construction of the main body of the eccentric structure adopting the upper and lower synchronous reverse method; the structure is simple and reliable, and the shear resistance capacity of the vertical support structure of the reverse method is improved, the waste of construction period is avoided, and the construction efficiency and structural reliability are guaranteed.

(2) The installation and connection of the steel support is realized by setting the connecting piece. On the one hand, it facilitates the installation of the steel support, and on the other hand, it can improve the installation strength of the steel support and ensure the bearing capacity of the steel support.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is a side view structural schematic diagram of a steel pipe column of the present invention;

Fig. 3 is a schematic diagram of the assembly structure of the steel pipe column and the connector of the present invention;

Fig. 4 is a schematic structural view of the connector of the present invention.

In the figure: 1. steel pipe column; 2. steel support; 3. upper supporting wall beam; 4. lower supporting wall beam; 5. connector; 51. curved plate; 52. supporting plate; 1. Bottom threaded hole; 6. Concrete column; 7. Thread sleeve; 8. Side bolt; 9. Bottom bolt; 11. Beam shape hole; 12. Locking hole.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Please refer to Fig. 1-Fig. 4, the present invention is a supporting frame of a structural conversion system of the reverse method. Two groups of steel pipe columns 1 are arranged vertically side by side on the ground. Concrete is poured inside the steel pipe column 1, and the concrete is Concrete column 6 is formed inside the steel pipe column 1. The steel pipe column 1 is used to form the concrete column 6. By forming a supporting structure together with the concrete column 6, the strength of the concrete column 6 can be effectively improved. The concrete column 6 and the steel pipe column 1 bear the steel support 2 vertical loads.

The upper support wall beam 3 is connected through the upper part of the two sets of steel pipe columns 1, and the upper support wall beam 3 is located on the first floor of the core tube to meet the mechanical requirements of the interface layer structure.

The structure of the lower supporting wall beam 4 is the same as that of the upper supporting wall beam 3, and the lower supporting wall beam 4 is connected through the lower part of the two sets of steel pipe columns 1, and the lower supporting wall beam 4 is located on the negative floor of the core tube to meet the second structural system. Force requirements for conversion.

The steel support 2 is arranged between two groups of steel pipe columns 1, and the steel support 2 is connected to the upper supporting wall beam 3 and the lower supporting wall beam 4. The steel support 2 has an X-shaped structure, and the four ends of the steel support 2 are fixedly welded with connectors 5 , and the connectors 5 are connected to the steel pipe column 1 through side bolts 8 .

The X-shaped steel support 2 is located in the shear wall, the steel pipe column 1 in the basement bears the vertical load on the left and right sides of the steel support 2, and the supporting wall beam of the first floor bears the load from the shear wall and steel inclined column on its upper side , the supporting wall beams on the negative first floor bear horizontal loads on their lower sides, and together form a frame structure with supports, realizing the force conversion of the upper and lower synchronous reverse methods of the eccentric structure.

The upper and lower parts of the steel pipe column 1 are provided with beam molding holes 11. The beam molding holes 11 have the same cross-sectional structure as the upper supporting wall beam 3 and the lower supporting wall beam 4 in the width direction. The stability of the connection between the beams, and at the same time facilitate the installation of the supporting wall beams.

The steel pipe column 1 is provided with a locking hole 12, the locking hole 12 is connected with the beam shape hole 11, and the lock hole 12 is threaded with a locking bolt, when the supporting wall beam is inserted into the beam shape hole 11 of the steel pipe column 1 , and then twist the locking bolt, and the supporting wall beam is locked on the steel pipe column 1 through the locking bolt, which can ensure the stability of the connection between the steel pipe column 1 and the supporting wall beam.

The connector 5 includes an arc plate 51, the lower end of the arc plate 51 is fixedly provided with a supporting plate 52, and the arc plate 51 is provided with a plurality of side threaded holes 53 matching with the side bolts 8, and the arc plate 51 can be fitted on The outer circumference of the steel pipe column 1, and the connecting piece 5 can be locked by the side bolt 8, so as to facilitate the installation of the steel support 2.

The support plate 52 is provided with a plurality of bottom threaded holes 54, and the bottom threaded holes 54 are equipped with lower bolts 9, and the support plate 52 is fixedly installed on the supporting wall beam through the lower bolts 9, so that the connecting piece 5 is connected with the steel pipe column 1 and the support plate respectively. The wall beams are connected, so that the steel support can transmit the load to the steel pipe column 1 and the supporting wall beams, so as to realize the force conversion of the eccentric structure by the upper and lower synchronous reverse method.

The steel pipe column 1 is fixedly welded with a threaded sleeve 7, and the threaded sleeve 7 is provided with a threaded hole matching the side bolt 8. The threaded sleeve 7 is fixedly welded on the steel pipe column 1 by welding, and the threaded hole is a blind hole. After the concrete is poured in the column 1, the concrete sets and the threaded sleeve 7 is condensed to ensure the stability of the threaded sleeve 7, thereby ensuring the stability of the installation of the connecting piece 5. In addition, the threaded sleeve 7 is used instead of directly opening holes on the concrete column 6. The compatibility between the threaded hole and the side bolt 8 can be improved.

During the construction process of the upper and lower synchronous top-down method of the eccentric structure, relying on two structural system transformations, the shear resistance capacity of the vertical support structure of the top-down method was improved, and the upper main structure could be successfully constructed to the 28th floor. It was the first to be successfully implemented in an eccentric structure project Up and down synchronous reverse construction technology avoids waste of construction period and ensures construction efficiency and structural reliability.

In an optional embodiment, the connecting piece 5 is fixed to the steel pipe column 1 and the upper and lower supporting wall beams by welding, and the connecting piece 5 is installed through the side bolts 8 and the lower bolts 9, so that the connecting piece 5 The positioning is accurate during welding, and no support is needed to support the steel support 2, so the welding is convenient and accurate.

An embodiment of the present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the application scope of the present invention shall still belong to the scope covered by the patent of the present invention.

Claims (7)

1. A support frame for a top-down architecture conversion architecture, comprising: the steel pipe columns (1) are arranged in two groups and are vertically arranged on the ground side by side, concrete is poured into the steel pipe columns (1), and the concrete forms concrete columns (6) in the steel pipe columns (1);

the upper wall supporting beam (3) is connected to the upper parts of the two groups of steel pipe columns (1) in a penetrating manner;

the structure of the lower wall supporting beam (4) is the same as that of the upper wall supporting beam (3), and the lower wall supporting beam (4) is connected to the lower parts of the two groups of steel pipe columns (1) in a penetrating manner;

the steel support (2), the steel support (2) set up between two sets of steel-pipe column (1), and steel support (2) connect and hold in the palm wall beam (3) and hold in the palm wall beam (4) down.

2. The supporting frame of a top-down construction method structure transformation system according to claim 1, wherein the upper and lower parts of the steel pipe column (1) are provided with beam-shaped holes (11), and the beam-shaped holes (11) have the same cross-sectional structure as the upper wall-supporting beam (3) and the lower wall-supporting beam (4) in the width direction.

3. The support frame of a reverse construction method structure conversion system according to claim 2, wherein the steel pipe column (1) is provided with a locking hole (12), the locking hole (12) is communicated with the beam modeling hole (11), and a locking bolt is installed at the locking hole (12) through threads.

4. The supporting frame of a top-down construction method structure transformation system according to claim 1, wherein the steel support (2) is of an X-shaped structure, and the four ends of the steel support (2) are fixedly provided with connecting pieces (5), and the connecting pieces (5) are connected with the steel pipe column (1) through side bolts (8).

5. The support frame of a top-down construction transformation system according to claim 4, wherein the connecting member (5) comprises an arc-shaped plate (51), a support plate (52) is fixedly arranged at the lower end of the arc-shaped plate (51), and a plurality of side threaded holes (53) matched with the side bolts (8) are arranged on the arc-shaped plate (51).

6. The support frame of a reverse construction method structure conversion system according to claim 5, wherein a plurality of bottom threaded holes (54) are formed in the support plate (52), and the bottom threaded holes (54) are provided with the lower bolts (9).

7. The supporting frame of a reverse construction method structure transformation system according to claim 4, wherein a threaded sleeve (7) is fixedly welded on the steel pipe column (1), and a threaded hole matched with the side bolt (8) is formed in the threaded sleeve (7).

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