CN108978849A - A kind of steel frame mechanization assembly type balcony - Google Patents

Abstract

The invention discloses a steel frame mechanized assembled balcony. The invention adopts the construction technology for improving the balcony, a large amount of work is prefabricated in a factory, and only the prefabricated components and the steel frame need to be mechanized assembled on site. The basic composition of the steel frame mechanized assembled balcony includes cantilever beams, prestressed cables, profiled steel plates and other components; the qualitative reform of the traditional cast-in-place balcony construction technology, the combination of prestressed technology and steel cantilever beams, makes the balcony more Lightweight, ensuring safety under earthquakes, self-resetting after earthquakes, greatly reducing post-earthquake repair costs, reflecting the advantages of easy assembly and good ductility of steel structures; compared with traditional cast-in-place balconies, it has high safety performance, It has many advantages such as little environmental pollution, few safety accidents and low construction cost. The steel frame structure adopted has the characteristics of low cost and low environmental pollution.

Description

A steel frame mechanized assembled balcony

technical field

The invention relates to a steel frame mechanized assembled balcony, which belongs to the technical field of civil engineering.

Background technique

As the only outdoor space of the residential building, the balcony creates the conditions for the residents to communicate with nature freely at any time, and further liberates them psychologically. The setting of balconies enriches the living space, direct communication between inside and outside, broad vision, natural and flexible adjustment of indoor temperature and sunlight, and is very popular among residents. Balconies have become an integral part of residential buildings. But on the other hand, the balcony is more complex than ordinary rooms in terms of architectural and structural processing and even construction difficulty. In order to obtain a small outdoor contact space, structural design and construction have caused greater difficulties, and there is an urgent need for a mechanized The construction technology of the construction improves the construction progress of the balcony, reduces the cost, and can ensure the safety of the balcony during use.

In recent years, balconies are not only the demand of residential buildings. In order to relieve the tension of office workers and provide them with the conditions to directly blend with nature at any time, more and more office buildings also need balconies. However, there is no feasible construction method for the post-assembly of balconies in existing buildings. In the near future, under the premise of ensuring safety, the construction method of balconies that can realize post-assembly of existing buildings will become a key research content in the field of engineering construction.

Contents of the invention

The invention provides a steel frame mechanized assembled balcony belonging to the technical field of civil engineering. Its purpose is to improve the construction technology of the balcony. A lot of work is prefabricated in the factory. The site only needs to mechanize the assembly of the prefabricated components and the steel frame, which can transfer the migrant workers with less security on the construction site to work in a safe factory. Transform migrant workers into skilled workers. In addition, the indoor prefabricated components of the factory can reduce air pollution caused by concrete mixing, pouring, and maintenance, and reduce the contribution rate of building construction to PM2.5, which is a qualitative reform of the balcony construction process.

Mechanized assembled balconies can achieve standardized production, and construction companies can prefabricate standard-sized balcony components in companies specializing in the production of balcony accessories. This not only reduces construction steps for construction companies, but also creates value for companies specializing in the production of balcony accessories. In this process, since the enterprises that produce accessories are mass-produced, it can greatly improve resource utilization, reduce resource consumption, and reduce construction waste generation.

The combination of prestressing technology and section steel cantilever beams has changed the traditional bulky concrete cantilever beams and made the balcony lighter. Under the earthquake, the light-weight assembled balcony can absorb less seismic energy; When the steel frame column has a small rotation angle, the tensioned prestressed cable can restore the cantilever beam to its original position, which plays a positive role in reducing the difficulty of post-earthquake maintenance.

The application of prestress enables the cantilevered balcony of the steel frame structure to obtain a higher safety factor. The main advantages of mechanized assembled balconies: (1) factory prefabrication and on-site assembly, reducing the construction period, reducing the environmental pollution of construction, and helping migrant workers to transform into skilled workers; (2) mass production of prefabricated components can greatly Improving the utilization rate of resources, reducing resource consumption, and reducing the generation of construction waste are conducive to promoting the process of housing industrialization in my country; (3) Under the action of earthquakes, prestressed cables are deformed under tension, which can restore the steel cantilever beams to their original positions. Reducing the difficulty of post-earthquake maintenance plays a certain positive role.

The steel frame mechanized assembled balcony, the connection steps: first, the steel cantilever beam and the beam end sealing plate are prefabricated and welded as a whole in the factory, and the lightweight concrete floor is poured on the profiled steel plate in the factory and the maintenance is completed. The hoisting equipment places the prefabricated cantilever beam perpendicular to the steel frame column, and passes the prestressed cable through the reserved holes of the beam end sealing plate, steel frame column and column end sealing plate on both sides of the steel cantilever beam. Test whether the prefabricated cantilever beam is perpendicular to the steel frame column. After ensuring the verticality, use permanent anchors to apply prestress to the prestressed cable on the outside of the beam end sealing plate and column end sealing plate and perform anchoring; after the cantilever beam is installed, The prefabricated lightweight concrete profiled steel plate is connected to the cantilever beam by means of bolts or welding; after connection, the lightweight concrete floor on the profiled steel plate should be flush with the concrete floor.

For the steel frame mechanized assembled balcony, after the cantilever beams and steel frame columns are connected, semi-enclosed protective railings or fully enclosed glass curtain walls are assembled according to the owner's requirements, and the construction of the steel frame mechanized assembled balcony is completed.

The steel frame mechanized assembled balcony, the floor plate adopts the prefabricated profiled steel plate floor plate, and can also use space plate and other floor plates. The floor slab should be sufficiently rigid and in close contact with the cantilever beams and flush with the concrete slab.

The beneficial effect of the present invention is that, in the above-mentioned mechanized assembled balcony with steel frame, the cantilever beams and light-weight concrete profiled steel plates used are all prefabricated components, which can be processed in the factory and assembled on the construction site. The method can solve the difficult problem of complex construction of the prefabricated steel frame structure balcony.

The steel frame mechanized assembled balcony is completely assembled on-site with prefabricated components, which cancels the traditional method of pouring concrete on the construction site, effectively guarantees the construction quality, completely avoids environmental pollution caused by concrete pouring, and realizes on-site construction. The three no standards of "no water, no fire, and no dust" have reduced the occurrence of fire and other hazardous accidents. When the components are dismantled, the present invention can efficiently recycle, reduce construction waste, truly realize the concept of green environmental protection, and is a green and sustainable steel frame balcony construction process.

The steel frame mechanized assembled balcony, the combination of prestressing technology and section steel cantilever beam, realizes the self-resetting of the cantilever beam after the earthquake, greatly reduces the post-earthquake repair cost; improves the balcony cantilever beam and steel frame structure The anti-seismic performance of the connection, thereby improving the anti-seismic performance of the steel frame structure system.

The steel frame mechanized assembled balcony proposed by the invention is a subversion of the traditional steel frame structure building balcony, and embodies the advantages of easy assembly and good ductility of the steel frame structure. Compared with the traditional steel frame structure balcony, it has many advantages such as high safety performance, less environmental pollution, less safety accidents and low engineering cost.

Description of drawings

Fig. 1 is the used section steel schematic diagram of cantilever beam of the present invention

Fig. 2 is the split schematic diagram of cantilever beam of the present invention

Fig. 3 is the split schematic diagram of cantilever beam and steel frame column of the present invention

Fig. 4 is a schematic view of the balcony cantilever beam after assembly of the present invention

Fig. 5 is the split schematic diagram of lightweight concrete profiled steel plate of the present invention

Fig. 6 is a schematic diagram of dismantling of the mechanized assembled balcony of the present invention

Fig. 7 is the schematic diagram of the steel frame structure system with assembled balcony of the present invention

In the figure 1. steel cantilever beam, 2. beam end seal plate, 3. prestressed cable, 4. permanent anchorage, 5. column end seal plate, 6. steel frame column, 7. steel frame beam, 8. concrete Floor, 9. Profiled steel plate, 10. Lightweight concrete floor.

Detailed ways

The present invention is described in detail below in conjunction with accompanying drawing:

As shown in accompanying drawing 1, in a kind of steel frame mechanized assembled balcony according to the present invention, the section steel 1 adopted by the cantilever beam, the I-beam shown in the figure, can also be selected according to the actual stress situation other forms of steel;

As shown in Figure 2, in a steel frame mechanized assembled balcony according to the present invention, the composition of the assembled balcony cantilever beam: the cantilever beam is mainly composed of a section steel cantilever beam 1, a beam end sealing plate 2, It is composed of prestressed cables 3 and permanent anchorages 4, wherein when the beam end sealing plate 2 is prefabricated in the factory, holes of different sizes are reserved according to the selected prestressed cables 3, so as to facilitate the penetration of the prestressed cables 3 during assembly;

As shown in Figure 3, in a steel frame mechanized assembled balcony according to the present invention, firstly, the profiled steel cantilever beam 1 and the beam end sealing plate 2 are prefabricated and welded together in the factory, and the profiled steel plate 9 is completed in the factory. The lightweight concrete floor slab 10 is poured on top and the maintenance is completed. The prefabricated cantilever beam is placed perpendicular to the steel frame column 6 by hoisting equipment, and the prestressed cable 3 is passed through the beam end sealing plate 2 and the steel frame on both sides of the steel cantilever beam 1. Reserved holes for column 6 and column end sealing plate 5. At this time, use a total station to test whether the prefabricated cantilever beam is perpendicular to the steel frame column 6. Utilize the permanent anchor 4 to anchor the prestressed cable 3;

As shown in accompanying drawing 4, in a kind of steel frame mechanized assembled balcony according to the present invention, the cantilever beams on both sides of the balcony are installed in place according to the above installation sequence;

As shown in accompanying drawing 5, in a kind of steel frame mechanized assembly type balcony according to the present invention, light concrete floor slab 10 is poured in factory according to the actual size of construction, and profiled steel plate 9 is used as permanent bottom formwork to form lightweight concrete Pressure plate;

As shown in Figure 6, in a steel frame mechanized assembled balcony according to the present invention, after the cantilever beam is installed, the prefabricated lightweight concrete profiled steel plate is connected to the cantilever beam by means of bolts or welding. Finally, it should be ensured that the profiled steel plate 9 is closely connected with the profiled steel cantilever beam, and the lightweight concrete floor 10 on it is flush with the concrete floor 8;

As shown in Figure 7, in a steel frame mechanized assembled balcony according to the present invention, the steel frame that needs to be assembled to the balcony is assembled according to the above steps to form a steel frame structure system with an assembled balcony.

Claims (2)

1. A steel frame mechanized assembled balcony, characterized in that: the steel frame mechanized assembled balcony comprises steel cantilever beams, beam end sealing plates, prestressed cables, permanent anchors, column end sealing plates, steel frame columns , steel frame beams, concrete floors, profiled steel plates, lightweight concrete floors; The connection steps of the mechanized assembled balcony of the steel frame: first, the steel cantilever beam and the beam end sealing plate are prefabricated and welded as a whole in the factory; The prefabricated cantilever beam is placed perpendicular to the steel frame column, and the prestressed cable passes through the reserved holes of the beam end seal plate, steel frame column and column end seal plate on both sides of the steel cantilever beam, and the total station is used to test the prefabricated Whether the cantilever beam is perpendicular to the steel frame column, after ensuring verticality, use permanent anchors to apply prestress and anchor to the prestressed cable on the outside of the beam end sealing plate and column end sealing plate; after the cantilever beam is installed, the prefabricated light The light concrete profiled steel plate is connected to the cantilever beam by bolts or welding; after connection, it should be ensured that the lightweight concrete floor on the profiled steel plate is flush with the concrete floor. 2. A steel frame mechanized assembled balcony according to claim 1, characterized in that: after the above-mentioned steps are completed, a semi-enclosed protective railing or a fully enclosed glass curtain wall is assembled, and then the construction of the steel frame mechanized assembled balcony complete.