CN109024872A - A kind of concrete frame mechanization assembly type balcony - Google Patents

Abstract

The invention discloses a concrete frame mechanized assembled balcony, which improves the construction technology of the balcony. A large amount of work is prefabricated in a factory, and only the prefabricated components and the concrete frame are mechanized assembled on site. The basic composition of a mechanized assembled balcony with a concrete frame includes components such as cantilever beams, prestressed cables, and profiled steel plates; Combined, it makes the balcony lighter and ensures the safety under the earthquake. It can realize self-resetting after the earthquake, greatly reduces the post-earthquake repair cost, and basically solves the problems of difficult assembly and poor ductility of concrete structures; compared with traditional concrete balconies , it has many advantages such as high safety performance, less environmental pollution, less safety accidents and low engineering cost. Such a concrete frame structure has the characteristics of low cost and less environmental pollution.

Description

A concrete frame mechanized assembled balcony

technical field

The invention relates to a concrete 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 concrete 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 concrete 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, because 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 concrete column has a small corner, 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 concrete 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.

A mechanized assembled balcony with a concrete frame, the balcony includes steel cantilever beams, beam end sealing plates, prestressed cables, permanent anchors, column end sealing plates, concrete columns, concrete beams, concrete floors, profiled steel plates, lightweight concrete floor;

The connection steps are as follows: firstly, the section steel cantilever beam and the beam end sealing plate are prefabricated and welded as a whole in the factory, and the lightweight concrete floor slab is poured on the profiled steel plate in the factory and the maintenance is completed, and the prefabricated cantilever beam is perpendicular to the concrete by hoisting equipment Column placement, the prestressed cable passes through the beam end seal plate on both sides of the steel cantilever beam, the concrete column and the reserved hole of the column end seal plate, and the total station is used to test whether the prefabricated cantilever beam is perpendicular to the concrete column, After ensuring the verticality, use permanent anchors to anchor the prestressed cables on the outside of the beam end sealing plate and column end sealing plate; The beams are connected; after the connection, the lightweight concrete floor on the profiled steel plate should be flush with the concrete floor.

For the mechanized assembled balcony with concrete frame, after the cantilever beams and concrete 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 mechanized assembled balcony with concrete frame is completed.

In the mechanized assembled balcony with a concrete frame, the floor slab adopts a prefabricated profiled steel plate floor slab, and floor slabs such as space slabs can also be used. 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 concrete frame, the cantilever beams and lightweight 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 prefabricated concrete structure balconies.

The mechanized assembled balcony with concrete frame completely uses prefabricated components for on-site assembly, cancels the traditional way of pouring concrete on the construction site, effectively guarantees the construction quality, completely avoids the 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 concrete frame balcony construction technology.

The mechanized assembled balcony with concrete frame, the combination of prestressing technology and 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 concrete frame structure The anti-seismic performance of the connection, thereby improving the anti-seismic performance of the frame structure system.

The concrete frame mechanized assembled balcony proposed by the present invention subverts the traditional concrete structure building balcony, and basically solves the problems of difficult assembly and poor ductility of the concrete structure. Compared with the traditional concrete 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 concrete 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 concrete frame structure system with assembled balcony of the present invention

In the figure 1. Steel cantilever beam, 2. Beam end sealing plate, 3. Prestressed cable, 4. Permanent anchorage, 5. Column end sealing plate, 6. Concrete column, 7. Concrete 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 concrete 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 accompanying drawing 2, in a kind of concrete frame mechanized assembled balcony according to the present invention, the composition of described assembled balcony cantilever beam: the cantilever beam is mainly composed of section steel cantilever beam 1, 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 accompanying drawing 3, in a kind of concrete frame mechanized assembly type balcony of the present invention, first profiled steel cantilever beam 1 and beam end sealing plate 2 are prefabricated and welded as one in the factory, and finished in the factory in profiled steel plate 9 The lightweight concrete floor slab 10 is poured up and the maintenance is completed, the prefabricated cantilever beam is placed perpendicular to the concrete column 6 by hoisting equipment, and the prestressed cable 3 passes through the beam end sealing plate 2 and the concrete column 6 on both sides of the steel cantilever beam 1 and the reserved holes of the column end sealing plate 5. At this time, use a total station to test whether the prefabricated cantilever beam is perpendicular to the concrete column 6. After ensuring the verticality, use permanent anchors on the outside of the beam end sealing plate 2 and the column end sealing plate 5 Tool 4 anchors the prestressed cable 3;

As shown in accompanying drawing 4, in a kind of concrete 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 concrete 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, forms light concrete Pressure plate;

As shown in Figure 6, in a concrete 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 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 mechanized assembled balcony with a concrete frame according to the present invention, the concrete frame that needs to be assembled with the balcony is assembled according to the above steps to form a concrete frame structure system with an assembled balcony.

Claims (2)

1. A concrete frame mechanized assembled balcony is characterized in that: the balcony comprises steel cantilever beams, beam end sealing plates, prestressed cables, permanent anchors, column end sealing plates, concrete columns, concrete beams, concrete floor slabs, Profiled steel plate, lightweight concrete floor; The connection steps of the mechanized assembled balcony of the concrete 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 concrete column, and the prestressed cable passes through the beam end seal plate on both sides of the steel cantilever beam, the concrete column and the reserved holes in the column end seal plate. At this time, the total station is used to test the prefabricated cantilever Whether the beam is perpendicular to the concrete column, after ensuring the verticality, use the permanent anchorage to apply prestress to the prestressed cable on the outside of the beam end sealing plate and the column end sealing plate and carry out anchoring; after the cantilever beam is installed, press the prefabricated lightweight concrete The profiled steel plate is connected to the cantilever beam by bolts or welding; after connection, the light concrete floor on the profiled steel plate should be flush with the concrete floor. 2. A concrete frame mechanized assembled balcony according to claim 1, characterized in that: after the construction is completed, a semi-enclosed protective railing or a fully enclosed glass curtain wall is assembled, and then the construction of the concrete frame mechanized assembled balcony is completed.