A sealing structure for a building hole

Abstract

This invention provides a sealing structure for building openings, relating to the field of building construction technology. It includes a cross-section enlargement structure installed on the exterior of corner columns; a main beam positioned along the stress direction of the building opening, with both ends connected to the cross-section enlargement structures on two adjacent corner columns; and secondary beams, which are composite beams composed of H-beams and a superstructure plate. The H-beams span between the main beams and are fixedly connected to them, with the superstructure plate covering the H-beams. This invention enhances the load-bearing capacity and deformation resistance of existing corner columns by installing cross-section enlargement structures on their exteriors, thereby improving the stability of the entire sealing structure. The newly added main beams are arranged along the stress direction of the building opening, and the new secondary beams are a combination of H-beams and a superstructure plate. The H-beams provide high-strength load-bearing capacity, while the superstructure plate further distributes the load, thus improving the overall bending stiffness and load-bearing capacity of the sealing structure.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and more specifically, to a sealing structure for building openings. Background Technology

[0002] With the rapid development of urban rail transit construction, more and more underground projects are being integrated with existing hubs, commercial buildings, and other structures to form large-scale complexes. The development of subway systems, with their convenience, is increasingly favored by local governments as a measure to attract passenger flow and drive the development of surrounding areas. However, in many cases, the construction of new lines is not considered during the building construction process, and no connection measures are reserved. This necessitates the modification and construction of existing structures during the later construction and connection processes, including demolition and sealing of the original structures. In particular, the sealing of large-span openings can significantly impact the load-bearing capacity and seismic performance of the original structure due to the increased load on floor slabs, interior decoration, and other uses.

[0003] Therefore, there is an urgent need for a construction method that minimizes disturbance to the existing structure during the sealing of building openings, thereby reducing construction risks to the greatest extent and ensuring the structural safety of the building. Summary of the Invention

[0004] The purpose of this invention is to provide a sealing structure for building openings to improve the aforementioned problems. To achieve this purpose, the technical solution adopted by this invention is as follows:

[0005] In a first aspect, this application provides a sealing structure for building openings, including corner posts located around the building opening, comprising:

[0006] A cross-section enlargement structure is provided on the outer facade of the corner column;

[0007] The main beam is arranged along the force direction of the building opening, and the two ends of the main beam are respectively connected to the cross-section enlargement structure on the two adjacent corner columns;

[0008] The secondary beam is a composite beam consisting of an H-beam 31 and an upper structural plate 32. The H-beam spans between the main beams and is fixedly connected to the main beams. The upper structural plate covers the H-beam.

[0009] Furthermore, the cross-section enlargement structure includes concrete filling the cross-section enlargement structure, U-shaped stirrups, reinforcing steel bars, and stirrups embedded in the column.

[0010] The U-shaped stirrups are set in the area of ​​the structure with increased cross-section. The U-shaped stirrups are evenly arranged along the vertical direction of the corner, and both ends of each U-shaped stirrup are welded and fixed to the stirrups of the corner column.

[0011] The stirrup insertion column is arranged along the inner side of the U-shaped stirrup, and the stirrup insertion column is fixedly connected to the U-shaped stirrup;

[0012] The reinforcing bars are arranged along the longitudinal and transverse directions of the increased cross-section area, forming a steel mesh structure that is perpendicular to each other, and are fixedly connected to the stirrups embedded in the column.

[0013] Furthermore, T-shaped connectors are pre-embedded at equal intervals along the length of the main beam.

[0014] Furthermore, the secondary beam comprises multiple H-beams arranged side by side and fixedly connected to form a whole. The two ends of the whole are fixedly connected to the main beam through the T-shaped connectors, and the upper structural plate covers the top of the whole.

[0015] Furthermore, the upper structural slab includes slab distribution reinforcement and slab load-bearing reinforcement. The slab distribution reinforcement is evenly arranged along the length direction of the H-beam, and the slab load-bearing reinforcement is arranged along the width direction of the upper structural slab, forming a reinforcement mesh structure.

[0016] Furthermore, one end of the reinforcing bar arranged along the short direction of the cross-section increase region is hooked onto the stirrup implanted column, and the other end is vertically anchored into the side of the corner column.

[0017] Furthermore, the middle and end connections of the multiple H-beams are connected by shear studs, and the connections are reinforced by welds.

[0018] Furthermore, multiple secondary beams are spanned between two main beams, and each secondary beam is composed of multiple H-beams with the same overall height, and the upper structural slab is a single unit.

[0019] Furthermore, the thickness of the upper structural plate is related to the load.

[0020] Furthermore, when the corner column is located at the four corners of the building opening, the cross-section enlargement structure is set on the multiple exterior facades of the corner column facing the adjacent corner column; when the corner column is located at the edge of the building opening, the cross-section enlargement structure is set on the exterior facade of the corner column facing the interior of the building opening.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention provides a structure for sealing openings with large spans. By adding a structure with an enlarged cross-section to the exterior of existing corner columns, the load of the sealing structure is not transferred to the original structure, thus preventing insufficient load-bearing capacity and seismic performance. Simultaneously, this structure also improves the load-bearing capacity and deformation resistance of the corner columns, thereby enhancing the stability of the entire sealing structure. Furthermore, the main and secondary beams of the sealing structure are essentially decoupled from the original structural load-bearing system, minimizing disturbance to the existing structure during construction, reducing engineering risks, and minimizing social impact. The new main beams are arranged along the stress direction of the building opening, and the new secondary beams are a combination of H-beams and a superstructure plate. The H-beams provide high-strength load-bearing capacity, while the superstructure plate further distributes the load, thereby improving the overall bending stiffness and load-bearing capacity of the sealing structure.

[0023] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a sealing structure for building openings in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the enlarged cross-section structure corresponding to the corner column in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of another corner column with an enlarged cross-section in an embodiment of the present invention;

[0028] Figure 4 This is a schematic cross-sectional elevation view of the structure with enlarged cross-section provided on the outer facade of the corner column on both sides in an embodiment of the present invention;

[0029] Figure 5 This is a schematic cross-sectional elevation view of the corner column with an enlarged cross-section structure on one side of the exterior facade in an embodiment of the present invention.

[0030] Figure 6 This is a reinforcement diagram of the secondary beam in an embodiment of the present invention.

[0031] The markings in the diagram are: 1. Corner column; 2. Main beam; 3. Secondary beam; 4. Enlarged cross-section structure; 11. U-shaped stirrup; 12. Reinforcing steel bar; 13. Stirrup embedded in column; 31. H-beam; 32. Upper structural slab; 33. Shear stud. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this invention, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Example 1:

[0035] like Figure 1 As shown, this embodiment provides a sealing structure for building openings, including corner posts 1 located around the building opening, comprising:

[0036] Cross-section enlargement structure 4 is installed on the outer facade of corner column 1;

[0037] Main beam 2 is set along the force direction of the building opening, and the two ends of the main beam 2 are respectively connected to the cross-section enlarged structure 4 on the two adjacent corner columns 1;

[0038] Secondary beam 3 is a composite beam consisting of H-beam 31 and upper structural plate 32. H-beam 31 spans between main beams 2 and is fixedly connected to main beams 2. Upper structural plate 32 covers the H-beam 31.

[0039] Specifically, the original corner columns 1 around the building openings are enlarged in cross-section. That is, a cross-section enlarged structure 4 is set on the outer facade of the corner columns, with an increased width of about 700mm. This structure serves as a support for the newly built main beam 2, bearing the load of the new main beam 2 while separating it from the existing structural column load-bearing system.

[0040] The main beam 2 is set along the main stress direction of the building opening, in the same direction as the existing main beams; the H-beam 31 spans between the two main beams 2 and is fixedly connected to the main beams 2 to form a stable load-bearing frame, improving the load-bearing capacity and bending stiffness of the sealed structure. The upper structural plate 32 covers the H-beam 31, further dispersing the load and forming a complete closed surface, improving the overall stability and durability of the structure.

[0041] When the corner post 1 is located at the four corners of the building opening, the cross-section enlargement structure 4 is set on the multiple exterior facades of the corner post 1 facing the adjacent corner post; when the corner post 1 is located at the edge of the building opening, the cross-section enlargement structure 4 is set on the exterior facade of the corner post 1 facing the interior of the building opening.

[0042] Specifically, based on the different positions of corner column 1 within the building openings, and considering the existing foundation and its underlying columns in the current building, the arrangement of structure 4 with enlarged cross-sections is flexibly adjusted to optimize stress distribution and improve overall structural stability. Detailed explanations are as follows:

[0043] like Figure 2 As shown, when corner column 1 is located at the four corners of a building opening, it typically connects existing main beams and secondary beams in multiple directions and needs to withstand loads from different directions. Therefore, the cross-section enlargement structure 4 is mainly set on multiple sides of the corner column facing adjacent corner columns. If the foundation columns under the existing foundation are symmetrically arranged, the cross-sections of multiple sides of corner column 1 are enlarged to enhance bending and shear resistance, improve overall stability, ensure that the bearing capacity can be evenly transferred to the existing foundation and foundation columns, and reduce local stress concentration. Furthermore, the main beams and secondary beams of the opening sealing structure are basically decoupled from the original structural bearing system to minimize disturbance to the existing structure during construction, reduce engineering risks, and minimize social impact.

[0044] like Figure 3 As shown, when corner column 1 is located at the edge of the building opening, the main force is concentrated on the side facing the inside of the opening, primarily bearing the vertical loads of the existing main beams and secondary beams. The cross-section enlargement structure 4 is mainly installed on the exterior facade of the corner column facing the inside of the building opening. Since the existing base column is located outside corner column 1, there is no need to increase the cross-section on the outside; instead, the cross-section should be enlarged on the inside to enhance the load-bearing capacity and avoid affecting other structures or space utilization by increasing the cross-section on the outside.

[0045] When arranging the cross-section enlargement structure 4, the size and shape of the existing foundation and the arrangement of the underlying columns must be fully considered to ensure uniform stress distribution and avoid additional structural stress concentration. If the existing columns are symmetrically distributed, a balanced increase in cross-section can be adopted; if the columns are eccentrically distributed, the shape of the cross-section enlargement structure 4 should be adjusted to adapt to the stress requirements and optimize the load-bearing capacity.

[0046] The cross-section enlargement structure 4 includes concrete filling the cross-section enlargement structure 4, U-shaped stirrups 11, reinforcing steel bars 12, and stirrup-embedded columns 13. The U-shaped stirrups 11 are set in the area of ​​the cross-section enlargement structure 4 and are evenly arranged along the vertical direction of the corner column 1. Both ends of each U-shaped stirrup 11 are welded and fixed to the stirrups of the corner column 1. The stirrup-embedded columns 13 are set along the inner side of the U-shaped stirrups 11 and are fixedly connected to the U-shaped stirrups 11. The reinforcing steel bars 12 are arranged along the long and short directions of the cross-section enlargement area, intersecting perpendicularly to form a steel mesh structure, and are fixedly connected to the stirrup-embedded columns 13.

[0047] Specifically, such as Figure 4 The diagram shows a cross-sectional elevation view of the corner column 1 with its adjacent two sides featuring an enlarged section structure 4. The enlarged section structure 4 is installed on both sides of the corner column 1, primarily to enhance its load-bearing capacity in multiple directions. The increased concrete area extends on both sides of the corner column, strengthening its load-bearing section. U-shaped stirrups 11 and stirrups embedded in the column 13 form a closed constraint frame, ensuring overall structural stability. The reinforcing steel bars 12 are staggered, providing higher stiffness and strength in the direction of force application.

[0048] like Figure 5 The diagram shows a cross-sectional elevation of the corner column 1 with an enlarged section structure 4 on one side of its exterior facade. The enlarged section structure 4 is located only on the exterior facade of the corner column 1 facing the building opening. Compared to the double-sided expansion scheme when the corner column is located at the four corners of the opening, this scheme is more suitable for the load-bearing requirements at the edge. U-shaped stirrups 11 are evenly distributed vertically along one side of the corner column 1, with both ends welded and fixed to the existing stirrups of the corner column 1, ensuring the integrity of the new part with the original structure. Stirrups are embedded in the column 13 inside the U-shaped stirrups 11, fixedly connected to the U-shaped stirrups, improving the integration of the new and old structures and strengthening shear resistance. The reinforcing bars 12 are arranged alternately in the longitudinal and transverse directions in the enlarged section area, forming a steel mesh structure, and are fixedly connected to the stirrups embedded in the column 13, further improving bending and compressive resistance. Concrete is poured in the area of ​​the enlarged section structure 4, forming an integral whole with the existing structure of the corner column 1, improving seismic resistance and durability.

[0049] T-shaped connectors are pre-embedded at equal intervals along the length of the main beam 2. These T-shaped connectors are embedded in the sides of the main beam 2 and are evenly spaced along its length to ensure uniform stress distribution at the connection points and reduce localized stress concentration. This enhances the connection strength between the main beam 2 and the secondary beam 3, improving the overall structural stability and resistance to deformation.

[0050] The secondary beam 3 includes multiple H-beams 31, which are arranged side by side and fixedly connected to form a whole. The two ends of the whole are fixedly connected to the main beam 2 through T-shaped connectors, and the upper structural plate 32 covers the whole.

[0051] The middle and both ends of multiple H-beams 31 are connected by shear studs 33, and the connection is reinforced by welds.

[0052] Specifically, multiple H-beams 31 are arranged side-by-side and fixedly connected to form a whole, ensuring the overall rigidity and load-bearing capacity of the structure. Both ends are fixedly connected to the main beam 2 via T-shaped connectors to ensure stable support. To enhance the structure's shear resistance, shear studs 33 are used at the middle and end joints of the multiple H-beams 31, enabling effective shear force transfer between the H-beams 31 and preventing relative slippage. Furthermore, welds are added at the joints for reinforcement, further improving the overall rigidity and load-bearing capacity, ensuring the stability and durability of the structure under stress.

[0053] The upper structural slab 32 includes slab distribution reinforcement and slab load reinforcement. The slab distribution reinforcement is evenly arranged along the length of the H-beam 31, and the slab load reinforcement is arranged along the width of the upper structural slab 32, forming a reinforcement mesh structure.

[0054] Specifically, such as Figure 6 The diagram shows the reinforcement details of the secondary beams. It includes the existing frame beam structure around the building openings, as well as main beam 2 and secondary beam 3. Secondary beam 3 consists of H-beams 31 and an upper structural slab 32. The upper structural slab 32 contains distributed reinforcement and load-bearing reinforcement. The distributed reinforcement distributes the load, prevents localized stress concentration, and improves the overall crack resistance of the slab. The load-bearing reinforcement primarily bears the load perpendicular to the H-beams 31, enhancing the bending resistance of the slab and improving the overall load-bearing capacity of the structure. Together, they form a reinforcement mesh structure that evenly distributes the load, improving the overall integrity and stress uniformity of the structure. This arrangement ensures that the upper structural slab 32 maintains good mechanical properties under both horizontal and vertical loads, preventing localized deformation or cracking.

[0055] One end of the reinforcing steel bar 12, which is arranged along the short direction of the cross-section increase region, is hooked onto the stirrup implanted in column 13, and the other end is vertically anchored into the side of corner column 1.

[0056] Specifically, during installation, one end of the reinforcing steel bar 12, arranged along the shorter direction of the increased cross-section area, is bent into a hook shape and hooked onto the stirrup-embedded column 13 to ensure a firm connection between the reinforcing steel bar and the stirrup-embedded column 13, thereby improving the overall stability of the steel mesh. The other end is vertically anchored into the side of the corner column 1, forming an effective structural connection between the reinforcing steel bar 12 and the corner column 1. This enhances the overall force transfer capacity between the increased cross-section structure 4 and the corner column 1, improves the load-bearing capacity and deformation resistance of the sealed structure, and ensures the reliability of the building's hole-sealing structure.

[0057] Multiple secondary beams 3 span between two main beams 2, and each secondary beam 3 is composed of multiple H-beams 31 with the same overall height, and the upper structural plate 32 is a whole.

[0058] Specifically, the structure consists of multiple H-beams 31, with a complete structural plate 32 on top, ensuring the continuity and overall rigidity of the entire sealing structure, improving its load-bearing capacity and resistance to deformation, and enabling it to better adapt to the stress requirements of building openings.

[0059] The thickness of the superstructure slab 32 is related to the load. The thickness of the superstructure slab 32 is designed according to the load it needs to bear; that is, the greater the load, the thicker the slab needs to be to ensure sufficient load-bearing capacity and structural stability. A reasonable design of the slab thickness can ensure that it does not undergo excessive deformation or failure under long-term loads, thereby meeting the requirements of structural safety and durability.

[0060] It should be noted that the specific manner in which each module performs its operation in the apparatus described in the above embodiments has been described in detail in the embodiments of the method, and will not be elaborated here.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0062] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A closure structure for a building opening, comprising corner posts (1) located around the building opening, characterized in that, include: A cross-section enlargement structure (4) is provided on the outer facade of the corner column (1); The main beam (2) is arranged along the force direction of the building opening, and the two ends of the main beam (2) are respectively connected to the cross-section enlargement structure (4) on the two adjacent corner columns (1); The secondary beam (3) is a composite beam consisting of an H-beam (31) and an upper structural plate (32). The H-beam (31) spans between the main beams (2) and is fixedly connected to the main beams (2). The upper structural plate (32) covers the H-beam (31).

2. A structure for sealing a building opening according to claim 1, wherein The cross-section enlargement structure (4) includes concrete filling the cross-section enlargement structure (4), U-shaped stirrups (11), reinforcing steel bars (12), and stirrup-embedded columns (13). The U-shaped stirrups (11) are set in the area of ​​the cross-section enlarged structure (4). The U-shaped stirrups (11) are evenly arranged along the vertical direction of the corner column (1). Both ends of each U-shaped stirrup (11) are welded and fixed to the stirrups of the corner column (1). The stirrup-inserted column (13) is arranged along the inner side of the U-shaped stirrup (11), and the stirrup-inserted column (13) is fixedly connected to the U-shaped stirrup (11); The reinforcing bars (12) are arranged along the long and short directions of the increased cross section, intersecting each other to form a steel mesh structure, and are fixedly connected to the stirrups inserted into the column (13).

3. A structure for sealing a building opening according to claim 1, wherein The main beam (2) has T-shaped connectors embedded at equal intervals along its length on its side.

4. A structure for sealing a building aperture according to claim 3, wherein The secondary beam (3) includes multiple H-beams (31), which are arranged side by side and fixedly connected to form a whole. The two ends of the whole are fixedly connected to the main beam (2) through the T-shaped connectors. The upper structural plate (32) covers the whole.

5. A structure for sealing a building aperture according to claim 4, wherein The upper structural slab (32) includes slab distribution reinforcement and slab load reinforcement (12). The slab distribution reinforcement is evenly arranged along the length direction of the H-beam (31), and the slab load reinforcement (12) is arranged along the width direction of the upper structural slab (32). The two form a reinforcement mesh structure.

6. A structure for sealing a building opening according to claim 2, wherein One end of the reinforcing bar (12) arranged along the short direction of the cross-section increase region is hooked on the stirrup implanted column (13), and the other end is vertically anchored into the side of the corner column (1).

7. A structure for sealing a building opening according to claim 4, wherein The middle and two ends of the multiple H-beams (31) are connected by shear studs (33), and the connection is reinforced by weld.

8. A structure for sealing a building opening according to claim 7, wherein Multiple secondary beams (3) are spanned between two main beams (2), and each secondary beam (3) is composed of multiple H-beams (31) with the same overall height, and the upper structural plate (32) is a whole.

9. A structure for sealing a building opening according to claim 1, wherein The thickness of the upper structural plate (32) is related to the load.

10. A structure for sealing a building opening according to claim 1, wherein When the corner post (1) is located at the four corners of the building opening, the cross-section enlargement structure (4) is set on the multi-sided exterior facade of the corner post (1) facing the adjacent corner post; when the corner post (1) is located at the edge of the building opening, the cross-section enlargement structure (4) is set on the exterior facade of the corner post (1) facing the interior of the building opening.

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