An installation structure and construction method for an integrated steel building upper balcony

Abstract

The present invention discloses an installation structure for a balcony on an integrated steel building. The balcony includes a thin-walled steel frame, and connecting tenons extending out of the end portions are provided at both ends of the frame. A support joint is reserved on the integrated steel building to be connected. The support joint includes a back plate, a bottom plate and two side plates. Wedge blocks are symmetrically provided on the inner sides of the two side plates. An installation seam that gradually narrows from top to bottom is formed between the wedge blocks and the back plate. The end protrusions of the connecting tenon form a limiting edge. The connecting tenon is placed in the support joint from above and supported by the bottom plate, so that the limiting edge is embedded in the installation seam, and a brake iron is inserted into the gap of the installation seam to fasten the limiting edge. The above-mentioned installation structure realizes fast and reliable installation on site, eliminates the connection gap, improves the preload force, eliminates welding on site, ensures the connection strength, reduces the difficulty of on-site assembly, and provides a new idea for assembling a balcony on an integrated steel building. The present invention also discloses a construction method for a balcony on an integrated steel building.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated steel structures, and particularly to an installation structure and construction method for a balcony on an integrated steel structure building. Background Art

[0002] At present, steel structures are used more and more in the field of building structures. A variety of new steel structure forms are constantly emerging, which have been applied in the engineering field, and the quantity is also increasing continuously, with broad prospects. Integrated steel is a kind of steel structure. Especially in the height direction, the welding connection method has great advantages, reducing the on-site construction difficulty and improving the construction efficiency.

[0003] When building a balcony on an integrated steel structure building, at present, it is mainly by welding connectors on the integrated steel, then connecting them firmly with bolts, and finally welding them into shape. In this method, there are connection gaps in the bolt connection, reducing the reliability. Moreover, the on-site welding workload is large, which is not conducive to high-altitude operation, with high labor intensity, low construction efficiency, and a large amount of on-site welding smoke emissions. Therefore, it is hoped to propose a new installation structure or construction method to improve the convenience of on-site construction. Summary of the Invention

[0004] An object of the present invention is to provide an installation structure for a balcony on an integrated steel structure building, designing the balcony structure and its connection method with the integrated steel to achieve simple construction of the balcony, avoid a large amount of on-site welding operations, and ensure connection reliability.

[0005] Another object of the present invention is to provide a construction method for a balcony on an integrated steel structure building to improve the convenience of on-site construction.

[0006] To achieve the above object, on the one hand, the present invention adopts the following technical solutions:

[0007] An installation structure for a balcony on an integrated steel structure building, wherein the balcony includes a "U"-shaped frame thin-walled steel. A cavity is formed in the frame thin-walled steel. A number of steel bars are arranged along the length direction of the frame thin-walled steel in the cavity, and the outer circumference of the steel bars is spot-welded circumferentially by a hoop. Connection tenons extending out of the ends are provided at both ends of the frame thin-walled steel. A removable truss floor slab is erected on the frame thin-walled steel. A support joint is reserved on the integrated steel structure building to be connected. The support joint includes a back plate, a bottom plate, and two side plates. Wedge blocks are symmetrically arranged on the inner side surfaces of the two side plates. An installation gap that gradually narrows from top to bottom is formed between the wedge blocks and the back plate. A limiting edge is formed by the end protrusion of the connection tenon. The connection tenon is placed into the support joint from above and supported by the bottom plate, so that the limiting edge is embedded in the installation gap, and a brake iron for fastening the limiting edge is inserted into the gap of the installation gap.

[0008] In particular, the clamp is in the shape of a narrow band, and a connecting screw is screwed into the outside of the frame thin-walled steel to be fixedly connected to the clamp, thereby locking the frame thin-walled steel and the clamp.

[0009] In particular, a dovetail groove for sinking the connecting screw is provided on the thin-walled steel section of the frame at a position corresponding to the screwing-in position of the connecting screw.

[0010] In particular, the limiting edge is in contact with the back plate, the brake iron is embedded between the limiting edge and the wedge-shaped block, and the brake iron is adapted to the inclined surface of the wedge-shaped block.

[0011] In particular, the connecting tenon is placed against the bottom of the thin-walled steel section of the frame, and the outer wall of the connecting tenon is abutted against and welded to the steel bar.

[0012] In particular, the side of the thin-walled steel of the frame is higher than the steel bars, and a plurality of reinforcing plates are fixed on the inner side of the side, and the reinforcing plates are against or welded to a certain clamp.

[0013] In particular, the corners of the thin-walled steel sections of the frame are provided with reinforcing connectors.

[0014] On the other hand, the present invention adopts the following technical solutions:

[0015] A construction method for an integrated steel building upper balcony, based on the above-mentioned installation structure of the integrated steel building upper balcony, comprises the following steps:

[0016] Before erecting an integrated steel building, weld the support joints on the target integrated steel in advance;

[0017] Preformed balcony, with connecting tenons arranged at the ends of its frame thin-walled steel, and a truss floor deck with a removable bottom plate arranged on the frame thin-walled steel;

[0018] During on-site construction, the balcony is suspended so that the connecting tenons on the balcony are embedded in the installation seams of the corresponding supporting joints to complete the pre-assembly;

[0019] Insert a brake iron into the gap of the installation seam to tighten the connecting tenon to generate a pre-tightening force;

[0020] Concrete is poured integrally on the integrated steel, the thin-walled steel of the balcony frame, the connecting tenons and the truss floor deck.

[0021] In summary, the beneficial effect of the present invention is that, compared with the prior art, the installation structure and construction method of the balcony on the integrated steel building replaces the original bolt connection and welding fixing structure by adding a connecting tenon on the balcony, reserving a supporting joint on the integrated steel, splicing the connecting tenon and the supporting joint and adding a brake iron clamping method, thereby achieving fast and reliable installation on site, eliminating the connection gap, increasing the preload force, eliminating welding on site, ensuring the connection strength, reducing the difficulty of on-site assembly, and providing a new idea for assembling balconies on integrated steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. 1 is a schematic view of the installation structure of a balcony on an integrated steel building provided by an embodiment of the present invention;

[0023] Figure 2 FIG. 2 Figure 1 is an enlarged view of part A in FIG. 1;

[0024] Figure 3 FIG. 3 Figure 1 is a top view of FIG. 1;

[0025] Figure 4 FIG. 4 is a schematic view of the structure of a balcony provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] Please refer to Figures 1 to 4 As shown in FIG. 1, this embodiment provides an installation structure of a balcony on an integrated steel building. Among them, the balcony 1 includes a "U"-shaped frame thin-walled steel 11, and a reinforcing connecting piece 19 is arranged at the corner of the frame thin-walled steel 11. A cavity is formed in the frame thin-walled steel 11, and a plurality of steel bars 12 are arranged along the length direction of the frame thin-walled steel 11 in the cavity, and hoop clamps 13 are used to spot-weld the outer circumference of the steel bars 12. Connecting tenons 14 extending out of the ends are arranged at both ends of the frame thin-walled steel 11, and a truss floor formwork 15 with a detachable bottom plate is erected on the frame thin-walled steel 11.

[0028] The connecting tenon 14 is placed against the bottom of the frame thin-walled steel 11, and the outer wall of the connecting tenon 14 is in contact with and welded to the steel bar 12, and a limiting edge is formed by the protrusion at the end of the connecting tenon 14.

[0029] The hoop clamp 13 here is in a narrow strip shape, and a connecting screw 16 is screwed into the hoop clamp 13 from the outside of the frame thin-walled steel 11 to be fixedly connected with the hoop clamp 13, locking the frame thin-walled steel 11 and the hoop clamp 13. A dovetail groove 17 for the connecting screw 16 to sink into is arranged at the position corresponding to the screwing-in position of the connecting screw 16 on the frame thin-walled steel 11. The dovetail groove 17 can ensure the bonding force between the frame thin-walled steel 11 and the concrete and can also hide the connecting screw 16.

[0030] The side of the frame thin-walled steel 11 is higher than the steel bar 12, and a plurality of reinforcing plates 18 are fixed on the inner side surface of the side, and the reinforcing plates 18 abut against or are welded to a certain hoop clamp 13.

[0031] A support joint 21 is reserved on the integrated steel building to be connected. The support joint 21 includes a back plate, a bottom plate and two side plates. Specifically, the back plate is directly welded and fixed on the integrated steel 2 when it leaves the factory. Wedge blocks 22 are symmetrically arranged on the inner sides of the two side plates. An installation seam 23 that gradually narrows from top to bottom is formed between the wedge blocks 22 and the back plate.

[0032] The connecting tenon 14 is placed in the supporting joint 21 from above and supported by the bottom plate, so that the limiting edge of the connecting tenon 14 is embedded in the installation seam 23, and a brake iron 24 fastened to the limiting edge is inserted into the gap of the installation seam 23. Here, the limiting edge is against the back plate of the supporting joint 21, and the brake iron 24 is embedded between the limiting edge and the wedge block 22, and the brake iron 24 is adapted to the inclined surface of the wedge block 22.

[0033] It should be noted that the connection method using the connecting tenon 14 and the brake iron 24 can eliminate the connection gap caused by manufacturing tolerance, eliminate the need for on-site welding, and can generate a pre-tightening force to improve the connection reliability.

[0034] In this regard, the present embodiment further provides a construction method for an integrated steel building upper balcony, based on the above-mentioned installation structure of the integrated steel building upper balcony, which includes the following steps:

[0035] 1) Before constructing the integrated steel building, a support joint 21 is welded on the target integrated steel 2 in advance;

[0036] 2) Preform the balcony 1, and set the connecting tenon 14 at the end of the thin-walled steel frame 11, and set the truss floor deck 15 with a removable bottom plate on the thin-walled steel frame 11;

[0037] 3) During on-site construction, the balcony 1 is suspended so that the connecting tenon 14 on the balcony 1 is embedded in the installation seam 23 of the corresponding supporting joint 21 to complete the pre-assembly;

[0038] 4) Insert the brake iron 24 into the gap of the installation seam 23 to tighten the connecting tenon 14 to generate a pre-tightening force;

[0039] 5) Concrete is integrally poured in the integrated steel 2, the thin-walled frame steel 11 of the balcony 1, the connecting tenon 14 and the truss floor deck 15.

[0040] In summary, the installation structure and construction method of the balcony on the integrated steel building replaces the original bolt connection and welding fixing structure by adding a connecting tenon on the balcony, reserving a supporting joint on the integrated steel, splicing the connecting tenon and the supporting joint and clamping it with a brake iron, thereby achieving fast and reliable installation on site, eliminating the connection gap, increasing the preload force, eliminating welding on site, ensuring the connection strength, reducing the difficulty of on-site assembly, and providing a new idea for assembling balconies on integrated steel.

[0041] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above examples. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An integrated steel building upper balcony installation structure, characterized in that: The balcony includes a "U"-shaped thin-walled frame section steel. A cavity is formed in the thin-walled frame section steel. A number of steel bars are arranged along the length direction of the thin-walled frame section steel in the cavity, and hoop fasteners are used to spot-weld the outer circumference of the steel bars. Connecting tenons protruding from the ends are provided at both ends of the thin-walled frame section steel. A truss floor formwork with a detachable bottom plate is erected on the thin-walled frame section steel. Support joints are reserved on the integrated section steel building to be connected. The support joint includes a back plate, a bottom plate and two side plates. Wedge blocks are symmetrically arranged on the inner side surfaces of the two side plates. An installation gap that gradually narrows from top to bottom is formed between the wedge block and the back plate. The end of the connecting tenon protrudes to form a limiting edge. The connecting tenon is placed into the support joint from above and supported by the bottom plate, so that the limiting edge is embedded into the installation gap, and a brake iron for fastening the limiting edge is inserted into the gap of the installation gap; The limiting edge abuts against the back plate. The brake iron is embedded between the limiting edge and the wedge block, and the brake iron is adapted to the inclined surface of the wedge block; The connecting tenon is placed against the bottom of the thin-walled frame section steel, and the outer wall of the connecting tenon abuts against and is welded to the steel bar.

2. The installation structure of the upper balcony of the integrated steel building according to claim 1 is characterized by: The hoop fastener is in a narrow strip shape and is screwed into the connecting screw from outside the thin-walled frame section steel to be fixedly connected with the hoop fastener, locking the thin-walled frame section steel and the hoop fastener.

3. The installation structure of the upper balcony of the integrated steel building according to claim 2 is characterized in that: A dovetail groove for sinking the connecting screw is provided at the position corresponding to the screwing-in position of the connecting screw on the thin-walled frame section steel.

4. The installation structure of the integrated steel building upper balcony according to claim 1 is characterized in that: The side of the thin-walled frame section steel is higher than the steel bar, and a number of reinforcing plates are fixed on the inner side surface of the side. The reinforcing plate abuts against or is welded to a certain hoop fastener.

5. The installation structure of the upper balcony of the integrated steel building according to claim 1 is characterized by: Reinforcing connectors are provided at the corners of the thin-walled frame section steel.

6. A construction method for an integrated steel building upper balcony, based on the installation structure of an integrated steel building upper balcony according to any one of claims 1 to 5, characterized in that: Including steps: Before building the integrated section steel building, weld the support joints on the target integrated section steel in advance; Pre-form the balcony, and set connecting tenons at the ends of its thin-walled frame section steel. A truss floor formwork with a detachable bottom plate is provided on the thin-walled frame section steel; During on-site construction, suspend the balcony so that the connecting tenons on the balcony are embedded into the installation gaps of the corresponding support joints to complete pre-assembly; Insert the brake iron into the gap of the installation gap to fasten the connecting tenon and generate a pre-tightening force; Concretely cast integrally on the integrated section steel, the thin-walled frame section steel of the balcony, the connecting tenon and the truss floor formwork.

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