Building beam cantilever structure supported by multiple branches
By symmetrically setting cantilevered areas on both sides of the core area of the building, and using the extension section, cantilever section and bifurcated support to form a triangular connection, the problem of the complexity and unsightly nature of traditional cantilever structures is solved, and the structure is made simple, beautiful and strong.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional cantilever structures have complex connection structures that affect the building's aesthetics, especially in buildings with large cantilever areas and small core areas.
The cantilevered beam structure with multi-branched support achieves a simple and aesthetically pleasing design by symmetrically setting up the first and second cantilever areas on both sides of the core area and using the extended section, cantilever section, branched support and rigid tie rod to form a triangular connection.
While ensuring structural strength, it improves the building's aesthetics and space utilization efficiency, simplifies the connection structure, and is suitable for large-span cantilever areas.
Smart Images

Figure CN224200041U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cantilever beam structure technology, and in particular to a cantilever beam structure with multi-branched support. Background Technology
[0002] Cantilever structures are a very common structural form. They increase structural space by setting up columns on one side and extending cantilever beams or slabs outwards, treating the space below the cantilever floor as an open space. Cantilever structures allow for diverse architectural designs and showcase the strength and beauty of the structure. Traditional implementations of cantilever structures involve setting up cantilever trusses and a rear core tube with supports or shear walls. The stiffness of the core tube helps prevent overturning. However, the diagonal braces of the trusses and the supports of the core tube significantly affect the functionality and appearance of the building. For buildings with large cantilever areas and small core areas, the structural components become even more complex.
[0003] The invention patent with publication number CN113789851A discloses a large-span connecting corridor structure with a curved cantilever truss and cable-stayed support, including a facade curved cantilever truss, an orthogonal connecting truss at the connecting corridor, a connecting truss for the cantilevered part, a connecting corridor truss structure, and a cable-stayed support structure; the facade curved cantilever truss is composed of two sets of facade curved planar triangular ultra-long cantilever trusses with fixed support on the ground, the two sets of facade curved planar triangular ultra-long cantilever trusses are symmetrically arranged, and each set of facade curved planar triangular ultra-long cantilever trusses is composed of multiple facade curved planar triangular ultra-long cantilever trusses arranged in parallel at a certain distance; the connection structure of this patent is complex.
[0004] Therefore, providing a simple and aesthetically pleasing cantilever beam structure is an urgent problem to be solved. Utility Model Content
[0005] The purpose of this utility model is to overcome the defects of the existing technology and provide a cantilevered structure of a multi-branched support beam.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] According to one aspect of the present invention, a multi-branched supported cantilevered floor beam structure is provided, including a core area, a first cantilever area and a second cantilever area, wherein the first cantilever area and the second cantilever area are respectively installed on both sides of the core area, and the first cantilever area and the second cantilever area are symmetrically arranged with respect to the core area.
[0008] As a preferred technical solution, the core area includes multiple straight columns, multi-story beams, and a roof beam. Adjacent beams are connected by multiple straight columns, and the roof beam is connected to adjacent beams by multiple straight columns, with the roof beam located at the top of the multi-story beams.
[0009] As a preferred technical solution, the straight columns include a first straight column, a second straight column, a third straight column, a fourth straight column, a fifth straight column, and a sixth straight column, and the floor beams include a first floor beam, a second floor beam, a third floor beam, a fourth floor beam, and a fifth floor beam. The first straight columns, the second straight columns, the third straight columns, the fourth straight columns, the fifth straight columns, and the sixth straight columns are arranged at intervals, and the first floor beam, the second floor beam, the third floor beam, the fourth floor beam, and the fifth floor beam are arranged at intervals.
[0010] As a preferred technical solution, the core area further includes two inner extension sections, one end of which is connected to the connection between the first straight column and the third floor beam, and the other end of which is connected to the connection between the second straight column and the first floor beam.
[0011] Alternatively, one end of the extended section can be connected to the connection between the sixth straight column and the third floor beam, and the other end of the extended section can be connected to the connection between the fifth straight column and the first floor beam.
[0012] As a preferred technical solution, both the first cantilever area and the second cantilever area include a fifth-layer cantilever beam and a roof cantilever beam, wherein the fifth-layer cantilever beam is an extension of the fifth floor beam and the roof cantilever beam is an extension of the roof beam.
[0013] As a preferred technical solution, the length of the roof cantilever beam is greater than the length of the fifth-floor cantilever beam.
[0014] As a preferred technical solution, both the first cantilever area and the second cantilever area further include a cantilever section, one end of which is connected to the connection between the first straight column and the third floor beam, and the other end of which is connected to the roof cantilever beam;
[0015] Alternatively, one end of the cantilever section can be connected to the connection between the sixth vertical column and the third floor beam, and the other end of the cantilever section can be connected to the roof cantilever beam.
[0016] As a preferred technical solution, both the first cantilever area and the second cantilever area further include a bifurcated support, one end of which is connected to the connection between the first straight column and the third floor beam, and the other end of which is connected to the fifth floor cantilever beam.
[0017] Alternatively, one end of the bifurcated support can be connected to the connection between the sixth straight column and the third floor beam, and the other end of the bifurcated support can be connected to the fifth floor cantilever beam.
[0018] As a preferred technical solution, both the first cantilever area and the second cantilever area further include a first vertical column and a second vertical column. The fifth-layer cantilever beam and the roof cantilever beam are connected by the first vertical column and the second vertical column. The first vertical column passes through the connection between the cantilever section and the fifth-layer cantilever beam, and the second vertical column is connected to the connection between the bifurcation support and the fifth-layer cantilever beam.
[0019] As a preferred technical solution, both the first cantilever area and the second cantilever area further include rigid tie rods. One end of the rigid tie rod is connected to the connection between the cantilever section and the roof cantilever beam, and the other end of the rigid tie rod is connected to the connection between the bifurcation support and the fifth layer cantilever beam.
[0020] Compared with the prior art, the present invention has the following beneficial effects:
[0021] 1. This utility model has a core area, and the first cantilever area and the second cantilever area are symmetrically installed on both sides of the core area to cancel out the stress on both sides. Multiple supports are used in both the first cantilever area and the second cantilever area to ensure structural strength and improve aesthetics while ensuring strength.
[0022] 2. This utility model connects different straight columns and floor beams together through the inner extension section, which further improves the structural strength of the core area and can better cope with the stress loading of the first cantilever area and the second cantilever area.
[0023] 3. The cantilevered sections of the first and second cantilevered areas of this utility model can be regarded as extensions of the inner extension section. The cantilevered section and the inner extension section are on the same straight line, which can better support the first and second cantilevered areas.
[0024] 4. This utility model, through the connection of the cantilever section, rigid tie rod and bifurcated support, can be regarded as a triangle, which can realize the internal support of the first cantilever area and the second cantilever area. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a front view of the present invention;
[0027] Figure 3 This is a structural schematic diagram of the core area of this utility model;
[0028] Figure 4 This is a structural schematic diagram of the first cantilevered area of this utility model;
[0029] Figure 5 This is a structural schematic diagram of the second cantilever region of this utility model;
[0030] 1. Core area; 2. First cantilever area; 3. Second cantilever area; RFL. Roof beam; GZ1. First straight column; GZ2. Second straight column; GZ3. Third straight column; GZ4. Fourth straight column; GZ5. Fifth straight column; GZ6. Sixth straight column; 2FL. Second floor beam; 3FL. Third floor beam; 4FL. Fourth floor beam; 5FL. Fifth floor beam; XCZ_in. Inward extension; 5FXTL. Fifth floor cantilever beam; RFXTL. Roof cantilever beam; XCZ_out. Cantilever section; HXC. Bifurcation brace; GLZ1. First vertical column; GLZ2. Second vertical column; Glg. Rigid tie rod; B. Axis of symmetry. Detailed Implementation
[0031] The technical solutions of the present utility model 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 utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.
[0032] To address the aforementioned issues, the purpose of this utility model is to provide a bifurcated support floor cantilever structure solution. By setting up ground-supported diagonal bracing columns, arc-shaped supports, and rigid tie rods, a simpler cantilever solution is achieved. While meeting the requirements of building transparency and practicality, a large-span cantilever is realized with a more reasonable force transmission method.
[0033] This invention provides a multi-branched supported cantilever beam structure. It features a core region with a first and second cantilever region symmetrically positioned on either side to cancel out stress. Multiple supports are used in both the first and second cantilever regions to ensure structural strength while improving aesthetics. The invention further enhances the structural strength of the core region by connecting different straight columns and beams through extended sections, better handling stress loading in the first and second cantilever regions. The cantilever sections of the first and second cantilever regions can be considered extensions of the extended sections, which are aligned on the same straight line for better support. Finally, the connection of the cantilever sections, rigid tie rods, and branched supports forms a triangle, providing internal support for both the first and second cantilever regions.
[0034] Example 1
[0035] like Figures 1-5As shown, a multi-branched cantilevered beam structure includes a core region 1, a first cantilever region 2, and a second cantilever region 3. The first cantilever region 2 and the second cantilever region 3 are respectively installed on both sides of the core region 1, and the first cantilever region 2 and the second cantilever region 3 are symmetrically arranged with respect to the core region 1.
[0036] The core area 1 includes multiple straight columns, multi-story beams, and a roof beam RFL. Adjacent beams are connected by multiple straight columns, and the roof beam RFL is connected to adjacent beams by multiple straight columns, with the roof beam RFL located at the top of the multi-story beams.
[0037] The straight columns include a first straight column GZ1, a second straight column GZ2, a third straight column GZ3, a fourth straight column GZ4, a fifth straight column GZ5, and a sixth straight column GZ6. The floor beams include a first floor beam, a second floor beam 2FL, a third floor beam 3FL, a fourth floor beam 4FL, and a fifth floor beam 5FL. The first straight columns GZ1, GZ2, GZ3, GZ4, GZ5, and GZ6 are arranged alternately, as are the first floor beams 2FL, 3FL, 4FL, and 5FL.
[0038] In this embodiment, a multi-group bifurcated cantilevered floor structure is adopted. By adding connecting rods and supports between the groups, an overall force-bearing system is formed in space, creating an integral structure. This embodiment's bifurcated cantilevered floor structure comprises a core area 1 and two cantilevered areas. The core area 1 is a single-axis symmetrical structure symmetrical about axis B, containing six 1000mm long ground-mounted steel columns, numbered GZ1 to GZ6. It comprises five floors (1F to 5F), each with a floor height of 5m. Floor beams of 2FL to 5FL or roof beams of RFL are arranged between the columns on each floor. Cantilevered areas 2 and 3 are symmetrically arranged about axis B. The first floor beam is installed in the ground, i.e., on the 1F floor.
[0039] The core area 1 also includes two extended sections XCZ_in. One end of the extended section XCZ_in is connected to the connection between the first straight column GZ1 and the third floor beam 3FL, and the other end of the extended section XCZ_in is connected to the connection between the second straight column GZ2 and the first floor beam.
[0040] Alternatively, one end of the extended section XCZ_in can be connected to the connection between the sixth straight column GZ6 and the third floor beam 3FL, and the other end of the extended section XCZ_in can be connected to the connection between the fifth straight column GZ5 and the first floor beam.
[0041] In this embodiment, the extended section XCZ_in is symmetrical about axis B. One end of the extended section XCZ_in is connected to the intersection of the third floor beam 3FL with the first straight column GZ1 or the sixth straight column GZ6, and the other end is connected to the intersection of the second straight column GZ2 or the fifth straight column GZ5 with the first floor beam.
[0042] The first cantilever area 2 and the second cantilever area 3 both include a fifth-floor cantilever beam 5FXTL and a roof cantilever beam RFXTL. The fifth-floor cantilever beam 5FXTL is an extension of the fifth floor beam 5FL, and the roof cantilever beam RFXTL is an extension of the roof beam RFL.
[0043] The length of the roof cantilever beam RFXTL is greater than the length of the fifth floor cantilever beam 5FXTL.
[0044] In this embodiment, the fifth floor beam 5FL and the roof cantilever beam RFXTL are extended by a portion, and the fifth floor cantilever beam 5FXTL and the roof cantilever beam RFXTL are arranged in two layers in the first cantilever area 2 and the second cantilever area 3, with the roof layer cantilever length being longer.
[0045] The first cantilever area 2 and the second cantilever area 3 both include a cantilever segment XCZ_out. One end of the cantilever segment XCZ_out is connected to the connection between the first straight column GZ1 and the third floor beam 3FL, and the other end of the cantilever segment XCZ_out is connected to the roof cantilever beam RFXTL.
[0046] Alternatively, one end of the cantilever segment XCZ_out can be connected to the connection between the sixth straight column GZ6 and the third floor beam 3FL, and the other end of the cantilever segment XCZ_out can be connected to the roof cantilever beam RFXTL.
[0047] In this embodiment, one end of the ground-supported diagonal bracing column cantilever section XCZ_out is connected to the intersection of the third floor beam 3FL in the core area 1 with the first straight column GZ1 or the sixth straight column GZ6, and the other end is the intersection of the ground-supported diagonal bracing column extension section XCZ_in and the roof layer cantilever beam RFXTL after linear extension.
[0048] The first cantilever area 2 and the second cantilever area 3 both include a bifurcated support HXC. One end of the bifurcated support HXC is connected to the connection between the first straight column GZ1 and the third floor beam 3FL, and the other end of the bifurcated support HXC is connected to the fifth floor cantilever beam 5FXTL.
[0049] Alternatively, one end of the bifurcated support HXC is connected to the connection between the sixth straight column GZ6 and the third floor beam 3FL, and one end of the bifurcated support HXC is connected to the fifth floor cantilever beam 5FXTL.
[0050] In this embodiment, the bifurcated support HXC is arc-shaped. One end starts at the intersection of the inner extension section XCZ_in of the ground-mounted diagonal brace column with the first straight column GZ1 or the second straight column GZ6, forming a Y-shaped bifurcation with the ground-mounted diagonal brace column. The other end extends along the arc to the farthest end of the cantilever and intersects with the cantilever beam 5FXTL of the fifth floor.
[0051] The first cantilever area 2 and the second cantilever area 3 both include a first vertical column GLZ1 and a second vertical column GLZ2. The fifth layer cantilever beam 5FXTL and the roof cantilever beam RFXTL are connected by the first vertical column GLZ1 and the second vertical column GLZ2. The first vertical column GLZ1 passes through the connection between the cantilever section XCZ_out and the fifth layer cantilever beam 5FXTL. The second vertical column GLZ2 is connected to the connection between the bifurcation support HXC and the fifth layer cantilever beam 5FXTL.
[0052] In this implementation plan, two vertical columns are installed in the cantilever area, namely the first vertical column GLZ1 and the second vertical column GLZ2. The first vertical column GLZ1 is located at the intersection of the ground-supported diagonal brace column XCZ_out and the fifth-floor cantilever beam 5FXTL, with its top extending to the roof beam RFL and its bottom extending to the arc-shaped bifurcated support HXC. The second vertical column GLZ2 is located at the intersection of the arc-shaped bifurcated support HXC and the fifth-floor cantilever beam 5FXTL, with its top extending to the roof beam RFL.
[0053] Both the first cantilever area 2 and the second cantilever area 3 further include a rigid tie rod Glg. One end of the rigid tie rod Glg is connected to the connection between the cantilever section XCZ_out and the roof cantilever beam RFXTL, and the other end of the rigid tie rod Glg is connected to the connection between the bifurcated support HXC and the fifth layer cantilever beam 5FXTL.
[0054] In this embodiment, rigid tie rods Glg are provided in the first cantilever area 2 and the second cantilever area 3. One end of the rigid tie rod Glg is connected to the intersection of the top of the ground-supported diagonal brace column XCZ_out and the roof cantilever beam RFXTL, and the other end is connected to the intersection of the arc-shaped bifurcated support HXC and the fifth-floor cantilever beam 5FXTL.
[0055] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A cantilevered floor beam structure with multi-branched supports, characterized in that, It includes a core area (1), a first cantilever area (2) and a second cantilever area (3), the first cantilever area (2) and the second cantilever area (3) are respectively installed on both sides of the core area (1), and the first cantilever area (2) and the second cantilever area (3) are symmetrically arranged with respect to the core area (1).
2. The cantilevered floor beam structure with multi-branched support according to claim 1, characterized in that, The core area (1) includes multiple straight columns, multi-story beams and a roof beam (RFL). The adjacent beams are connected by multiple straight columns, and the roof beam (RFL) is connected to the adjacent beams by multiple straight columns and is located at the top of the multi-story beams.
3. The cantilevered floor beam structure with multi-branched support according to claim 2, characterized in that, The straight columns include a first straight column (GZ1), a second straight column (GZ2), a third straight column (GZ3), a fourth straight column (GZ4), a fifth straight column (GZ5), and a sixth straight column (GZ6). The floor beams include a first floor beam, a second floor beam (2FL), a third floor beam (3FL), a fourth floor beam (4FL), and a fifth floor beam (5FL). The first straight columns (GZ1), second straight columns (GZ2), third straight columns (GZ3), fourth straight columns (GZ4), fifth straight columns (GZ5), and sixth straight columns (GZ6) are arranged alternately. The first floor beams (2FL), third floor beams (3FL), fourth floor beams (4FL), and fifth floor beams (5FL) are also arranged alternately.
4. The cantilevered floor beam structure with multi-branched support according to claim 3, characterized in that, The core area (1) also includes two extension sections (XCZ_in), one end of which is connected to the connection between the first straight column (GZ1) and the third floor beam (3FL), and the other end of which is connected to the connection between the second straight column (GZ2) and the first floor beam; Alternatively, one end of the extended section (XCZ_in) can be connected to the connection between the sixth straight column (GZ6) and the third floor beam (3FL), and the other end of the extended section (XCZ_in) can be connected to the connection between the fifth straight column (GZ5) and the first floor beam.
5. A cantilevered floor beam structure with multi-branched support according to claim 3, characterized in that, The first cantilever area (2) and the second cantilever area (3) both include a fifth floor cantilever beam (5FXTL) and a roof cantilever beam (RFXTL). The fifth floor cantilever beam (5FXTL) is an extension of the fifth floor beam (5FL), and the roof cantilever beam (RFXTL) is an extension of the roof beam (RFL).
6. A cantilevered floor beam structure with multi-branched support according to claim 5, characterized in that, The length of the roof cantilever beam (RFXTL) is greater than the length of the fifth floor cantilever beam (5FXTL).
7. A cantilevered floor beam structure with multi-branched support according to claim 5, characterized in that, The first cantilever area (2) and the second cantilever area (3) both include a cantilever section (XCZ_out), one end of which is connected to the connection between the first straight column (GZ1) and the third floor beam (3FL), and the other end of which is connected to the roof cantilever beam (RFXTL). Alternatively, one end of the cantilever section (XCZ_out) can be connected to the connection between the sixth straight column (GZ6) and the third floor beam (3FL), and the other end of the cantilever section (XCZ_out) can be connected to the roof cantilever beam (RFXTL).
8. A cantilevered floor beam structure with multi-branched support according to claim 7, characterized in that, The first cantilever area (2) and the second cantilever area (3) both include a bifurcated support (HXC), one end of which is connected to the connection between the first straight column (GZ1) and the third floor beam (3FL), and the other end of which is connected to the fifth floor cantilever beam (5FXTL). Alternatively, one end of the bifurcated support (HXC) can be connected to the connection between the sixth straight column (GZ6) and the third floor beam (3FL), and the other end of the bifurcated support (HXC) can be connected to the fifth floor cantilever beam (5FXTL).
9. A cantilevered floor beam structure with multi-branched support according to claim 8, characterized in that, The first cantilever area (2) and the second cantilever area (3) both include a first vertical column (GLZ1) and a second vertical column (GLZ2). The fifth layer cantilever beam (5FXTL) and the roof cantilever beam (RFXTL) are connected by the first vertical column (GLZ1) and the second vertical column (GLZ2). The first vertical column (GLZ1) passes through the connection between the cantilever section (XCZ_out) and the fifth layer cantilever beam (5FXTL). The second vertical column (GLZ2) is connected to the connection between the bifurcated support (HXC) and the fifth layer cantilever beam (5FXTL).
10. A cantilevered floor beam structure with multi-branched support according to claim 9, characterized in that, Both the first cantilever area (2) and the second cantilever area (3) further include a rigid tie rod (Glg). One end of the rigid tie rod (Glg) is connected to the connection between the cantilever section (XCZ_out) and the roof cantilever beam (RFXTL), and the other end of the rigid tie rod (Glg) is connected to the connection between the bifurcation support (HXC) and the fifth layer cantilever beam (5FXTL).
Citation Information
Patent Citations
Arc-shaped cantilever truss and stay cable bearing combined large-span corridor structure and forming method
CN113789851A