Combined prefabricated prestressed reinforced concrete balcony and installation method thereof

Abstract

The present invention discloses a combined prefabricated prestressed reinforced concrete balcony and an installation method thereof. The combined prefabricated prestressed reinforced concrete balcony comprises at least two concrete components, wherein the concrete components comprise a beam component and a plate component, wherein the beam component is a prefabricated reinforced concrete beam and a prefabricated reinforced concrete secondary beam, and the plate component is a balcony plate; vertical prefabricated reinforced concrete beams are respectively arranged on the left and right sides of the combined prefabricated prestressed reinforced concrete balcony, and transverse prefabricated reinforced concrete secondary beams are arranged along the transverse side edges of the combined prefabricated prestressed reinforced concrete balcony; transverse ribs are arranged on the balcony plate along the transverse side edges of the combined prefabricated prestressed reinforced concrete balcony, the balcony plate of the combined prefabricated prestressed reinforced concrete balcony is easy to produce, has simple mold processing, high production efficiency, low cost, high economic benefit, reliable component quality, easy later maintenance, component standardization is achieved, and the balcony plate has high promotion value.

Description

Technical Field

[0001] The invention belongs to the technical field of production of prefabricated assembled concrete shear wall components and relates to a combined prefabricated prestressed reinforced concrete balcony and an installation method thereof. Background Art

[0002] Prefabricated construction has seen rapid growth in recent years, with the construction industry across the globe undergoing transformation and upgrading, and prefabricated construction is one such development. Currently, prefabricated concrete shear wall structures are the most widely used, suitable for high-rise residential buildings. Due to the need to develop residential industrialization, prefabricated shear wall structures have received significant attention, with ongoing research and innovation in all aspects of construction and design. The main horizontal components of prefabricated shear wall structures include floor slabs, stair slabs, balcony slabs, and air conditioning slabs. Balcony slabs are more complex in shape and less standardized, typically with side beams and counter edges, making them standard three-dimensional components. The production of these components requires a large number of molds, which are complex and costly. They are also difficult to produce, maintain, and store. Summary of the Invention

[0003] The purpose of the present invention is to solve the defects of the existing technology and propose a combined prefabricated prestressed reinforced concrete balcony and an installation method thereof. The prefabricated balcony is divided into multiple standard or regular components in a modular manner, and the components are combined together through the prestressed post-tensioning method to form a combined prefabricated prestressed reinforced concrete balcony.

[0004] On the one hand, the present invention provides a combined prefabricated prestressed reinforced concrete balcony, which is composed of at least two concrete components. The concrete components include beam components and plate components. The beam components are prefabricated reinforced concrete beams and prefabricated reinforced concrete secondary beams, and the plate components are balcony plates. Vertical prefabricated reinforced concrete beams are respectively provided on the left and right sides of the combined prefabricated prestressed reinforced concrete balcony, and transverse prefabricated reinforced concrete secondary beams are provided along the transverse sides of the combined prefabricated prestressed reinforced concrete balcony. Transverse ribs are provided on the balcony plates of the combined prefabricated prestressed reinforced concrete balcony in the transverse side directions.

[0005] In the above scheme, it is preferred that the precast reinforced concrete beams and precast reinforced concrete secondary beams on both sides of the balcony slab are respectively reserved with paired and symmetrical post-tensioning prestressed reserved openings and secondary beam prestressed tensioning reserved holes at their contact surfaces.

[0006] It may also be preferred that the precast reinforced concrete beams and the precast reinforced concrete secondary beams on both sides of the balcony slab are fixed by prestressed steel bars.

[0007] It may also be preferred that the anchorage of the prestressed steel bars is embedded in the beam.

[0008] It may also be preferred that protruding steel bars are reserved on the side surfaces of the prefabricated reinforced concrete secondary beam.

[0009] It may also be preferred that concave notches are reserved on the sides of the prefabricated reinforced concrete beams on both sides of the balcony slab.

[0010] It may also be preferred that the balcony slab is provided with balcony slab prestressed tensioning reserved holes along the transverse direction.

[0011] It is also preferred that the ribs are in a T-structure.

[0012] It may also be preferred that web reserved holes are provided on the web of the T-structure of the rib.

[0013] Another aspect of the present invention provides a method for installing the above-mentioned combined prefabricated prestressed reinforced concrete balcony, comprising the following steps:

[0014] The combined prefabricated prestressed reinforced concrete balcony comprises a split structure of at least two beam members and a plate member;

[0015] Prestressed tensioning holes are reserved at the locations of the beam components, and prestressed holes are also reserved along the transverse direction of the plate components;

[0016] Connecting the beam members on both sides of the plate member along the transverse side direction of the combined prefabricated prestressed reinforced concrete balcony so that the beam members on both sides are connected together by prestressing;

[0017] The plate member is also connected to the beam members on both sides by prestressing to realize the assembly of the combined prefabricated prestressed reinforced concrete balcony;

[0018] transporting the assembled prefabricated prestressed reinforced concrete balcony to the site for hoisting;

[0019] Passing the surface layer steel bars of the plate member through the reserved prestressed tensioning holes, overlapping with the protruding steel bars extending from the side of the beam member, and extending into the main structure;

[0020] Pour the surface concrete to complete the balcony slab construction.

[0021] The present invention can achieve the following beneficial effects:

[0022] The combined prefabricated prestressed reinforced concrete balcony and the installation method thereof of the present invention split the prefabricated balcony slab into several simple regular components, which is convenient for production, simple for mold processing, high in production efficiency, low in cost, and high in economic benefit; the simple components are combined into complex balcony slabs in the form of prestressing, the component quality is reliable, and it is easy to maintain in the later stage, thus achieving the goal of component standardization and having high promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 This is a structural schematic diagram of the combined prefabricated prestressed reinforced concrete balcony of the present invention.

[0025] Figure 2 This is a schematic diagram of the side structure of the combined prefabricated prestressed reinforced concrete balcony of the present invention.

[0026] Figure 3 It is a side sectional view of the combined prefabricated prestressed reinforced concrete balcony of the present invention.

[0027] Figure 4 This is a cross-sectional view of the prefabricated reinforced concrete secondary beam of the combined prefabricated prestressed reinforced concrete balcony of the present invention.

[0028] Figure 5 This is a cross-sectional view of the prefabricated reinforced concrete beam of the combined prefabricated prestressed reinforced concrete balcony of the present invention.

[0029] Figure 6 It is a front view of the combined prefabricated prestressed reinforced concrete balcony of the present invention.

[0030] Figure 7 This is a schematic diagram of the installation of a combined prefabricated prestressed reinforced concrete balcony of the present invention.

[0031] In the figure, 1 is a precast reinforced concrete beam, 2 is a precast reinforced concrete secondary beam, 3 is a balcony slab, 301 is a surface reinforcement, 4 is a rib plate, 5 is a contact surface, 6 is a reserved hole for prestressing of the main beam, 7 is a reserved hole for prestressing of the secondary beam, 8 is an anchor, 9 is a reserved lap reinforcement, 10 is a reserved notch, 11 is a reserved hole for prestressing of the balcony slab, 12 is a web plate, and 13 is a reserved hole for the web plate. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] The technical solutions provided by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] Example 1

[0035] Combined prefabricated prestressed reinforced concrete balconies, such as Figure 1 The combined prefabricated prestressed reinforced concrete balcony is composed of at least two concrete components, wherein the concrete components include beam components and plate components, wherein the beam components are prefabricated reinforced concrete beams 1 and prefabricated reinforced concrete secondary beams 2, and the plate components are balcony plates 3; vertical prefabricated reinforced concrete beams 1 are respectively arranged on the left and right sides of the combined prefabricated prestressed reinforced concrete balcony, and transverse prefabricated reinforced concrete secondary beams 2 are arranged along the transverse sides of the combined prefabricated prestressed reinforced concrete balcony; transverse ribs 4 are arranged on the balcony plates 3 of the combined prefabricated prestressed reinforced concrete balcony along the transverse side directions.

[0036] Example 2

[0037] like Figure 1 and Figure 2 The combined prefabricated prestressed reinforced concrete balcony described in Example 1 can further have paired and symmetrical post-tensioning prestressed reserved openings 6 and secondary beam prestressed tensioning reserved holes 7 reserved at the contact surfaces 5 of the prefabricated reinforced concrete beams 1 and prefabricated reinforced concrete secondary beams 2 on both sides of the balcony slab 3.

[0038] Example 3

[0039] like Figure 7 The installation method of the combined prefabricated prestressed reinforced concrete balcony described in Example 1 or Example 2 comprises the following steps:

[0040] The combined prefabricated prestressed reinforced concrete balcony comprises a split structure of at least two beam members and a plate member;

[0041] Prestressed tensioning holes are reserved at the locations of the beam components, and prestressed holes are also reserved along the transverse direction of the plate components;

[0042] Connecting the beam members on both sides of the plate member along the transverse side direction of the combined prefabricated prestressed reinforced concrete balcony so that the beam members on both sides are connected together by prestressing;

[0043] The plate member is also connected to the beam members on both sides by prestressing to realize the assembly of the combined prefabricated prestressed reinforced concrete balcony;

[0044] transporting the assembled prefabricated prestressed reinforced concrete balcony to the site for hoisting;

[0045] The surface layer steel bars 301 of the plate member are passed through the reserved prestressed tensioning holes, overlapped with the protruding steel bars 9 protruding from the side of the beam member, and extended into the main structure;

[0046] Pour the surface concrete and complete the construction of balcony slab 3.

[0047] Specifically, the beam component includes a precast reinforced concrete beam 1 and a precast reinforced concrete secondary beam 2, the plate component is set as a balcony plate 3, a main beam prestressed tensioning hole 6 is reserved at the location of the precast reinforced concrete beam 1, a secondary beam prestressed tensioning reserved hole 7 is reserved at the location of the precast reinforced concrete secondary beam 2, and a balcony plate prestressed tensioning reserved hole 11 is reserved along the horizontal direction of the balcony plate 3.

[0048] The above-mentioned combined prefabricated prestressed reinforced concrete balcony and construction method thereof can further be such that the prefabricated reinforced concrete beams 1 and the prefabricated reinforced concrete secondary beams 2 on both sides of the balcony slab 3 are fixed by prestressed steel bars.

[0049] like Figure 2 Furthermore, the anchor 8 of the prestressed steel bar is embedded in the beam 1.

[0050] like Figure 4 Furthermore, it is possible to reserve protruding steel bars 9 on the side of the prefabricated reinforced concrete secondary beam 2.

[0051] like Figure 5 Furthermore, concave notches 10 may be reserved on the sides of the prefabricated reinforced concrete beams 1 on both sides of the balcony slab 3 .

[0052] like Figure 3 Furthermore, the balcony slab 3 may be provided with balcony slab prestressed tensioning reserved holes 11 along the transverse direction.

[0053] Furthermore, the rib 4 may be a T-structure.

[0054] like Figure 6 Furthermore, a web reserved hole 13 can be provided on the web 12 of the T-structure of the rib 4.

[0055] More specifically, the number of ribs 4 can be at least two, with gaps between adjacent ribs 4. The precast reinforced concrete beams 1 and precast reinforced concrete secondary beams 2 on both sides of the balcony slab 3 are secured with prestressed steel bars and post-tensioned. After tensioning, anchors 8 are embedded in the beams 1. Post-tensioning is the method of applying prestressing during on-site construction. The protruding steel bars 9 are vertically positioned at the same location as the surface reinforcement 301 of the balcony slab 3. The protruding steel bars 9 extend for a length of 56d, where d is the diameter of the protruding steel bar 9. The number of protruding steel bars 9 can be at least two, and the spacing between the protruding steel bars 9 is 100 mm. The number of pre-tensioning holes 6 can be four, six, or eight. The pre-tensioning holes 6 and the pre-tensioning holes 7 for the secondary beam can be evenly distributed in pairs. The concrete component can be of a regular shape, such as a rectangle. The precast reinforced concrete beam can be of a regular shape, such as a rectangle. The precast reinforced concrete secondary beam 2 can be of a regular shape, such as a rectangle. The balcony slab 3 can be a precast reinforced concrete composite slab. The anchor 8 is embedded in the precast reinforced concrete beam 1 and does not protrude from the surface of the precast reinforced concrete beam 1. The notch 10 can be trapezoidal and have a depth of 1 cm. The inner height h1 of the notch 10 can be the same as the thickness of the precast balcony slab 3. The outer height of the notch 10 can be h2 = h1 + 1, in cm. The balcony slab 3 is provided with secondary beam prestressing holes 11 along the transverse direction. There are at least two secondary beam prestressing holes 11, which can be arranged in a row. The spacing between the secondary beam prestressing holes 11 can be 10 cm, and the diameter can be 15 mm. The web 12 of the T-structure of the rib 4 is provided with web prestressing holes 13. There are at least two web prestressing holes 13, which can be arranged in a row. The spacing between the web prestressing holes 13 can be 100 mm, and the position of the web prestressing holes 13 can match the protruding steel bars 9 reserved on the side of the precast reinforced concrete secondary beam 2. The surface steel bars 301 in the slab member are passed through the reserved main beam prestressing holes 6 and overlapped with the protruding steel bars 9 extending from the side of the beam member, and then extended into the main structure by a predetermined length. The prefabricated balcony slab 3 can be embedded in the notch 10 to improve the integrity.

[0056] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A combined prefabricated prestressed reinforced concrete balcony, comprising at least two concrete components, characterized in that: The concrete component comprises a beam component and a plate component, wherein the beam component is a precast reinforced concrete beam (1) and a precast reinforced concrete secondary beam (2), and the plate component is a balcony plate (3); vertical precast reinforced concrete beams (1) are respectively provided on the left and right sides of the combined precast prestressed reinforced concrete balcony, and transverse precast reinforced concrete secondary beams (2) are provided along the transverse side of the combined precast prestressed reinforced concrete balcony; transverse ribs (4) are provided on the balcony plate (3) of the combined precast prestressed reinforced concrete balcony along the transverse side direction; the precast reinforced concrete beams (1) and the precast reinforced concrete secondary beams (2) on both sides of the balcony plate (3) are respectively reserved with paired and symmetrical post-tensioning prestressing reserved openings (6) and secondary beam prestressing prestressing reserved holes (7) at their contact surfaces (5); the ribs (4) are T-structured, and the webs (12) of the T-structure of the ribs (4) are provided with web reserved holes (13); The number of ribs (4) is at least two, and a distance gap is set between adjacent ribs (4); the position of the web reserved hole (13) matches the reserved protruding steel bar (9) on the side of the precast reinforced concrete secondary beam (2); the vertical position of the protruding steel bar (9) is the position of the surface steel bar (301) of the balcony plate (3); the surface steel bar (301) in the plate component passes through the reserved main beam prestressing tensioning hole (6), overlaps with the protruding steel bar (9) protruding from the side of the beam component, and extends into the main structure by a preset length; The balcony slab (3) is provided with a balcony slab prestressed tensioning reserved hole (11) along the transverse direction, the side of the precast reinforced concrete secondary beam (2) is reserved with protruding steel bars (9), and the side of the precast reinforced concrete beams (1) on both sides of the balcony slab (3) are reserved with inwardly concave notches (10), and the precast reinforced concrete beams (1) on both sides of the balcony slab (3) are fixed to the precast reinforced concrete secondary beams (2) by prestressed steel bars; The anchorage (8) of the prestressed steel bar is embedded in the beam (1) and does not protrude from the surface of the prefabricated reinforced concrete beam (1).

2. The method for installing a combined prefabricated prestressed reinforced concrete balcony according to claim 1, wherein: The following steps are included: The combined prefabricated prestressed reinforced concrete balcony comprises a split structure of at least two beam members and a plate member; Prestressed tensioning holes are reserved at the locations of the beam components, and prestressed holes are also reserved along the transverse direction of the plate components; Connecting the beam members on both sides of the plate member along the transverse side direction of the combined prefabricated prestressed reinforced concrete balcony so that the beam members on both sides are connected together by prestressing; The plate member is also connected to the beam members on both sides by prestressing to realize the assembly of the combined prefabricated prestressed reinforced concrete balcony; transporting the assembled prefabricated prestressed reinforced concrete balcony to the site for hoisting; The surface layer steel bars (301) of the plate member are passed through the reserved prestressed tensioning holes, overlapped with the protruding steel bars (9) protruding from the side of the beam member, and extended into the main structure; Pour the surface concrete to complete the balcony slab (3) construction.

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