A prefabricated dormitory building structure with super-narrow flange box-shaped special-shaped columns

By using prefabricated ultra-narrow flange box-shaped columns and a concealed layout with integrated thermal insulation materials, the problems of heat loss and space occupation caused by exposed steel components are solved, achieving a dormitory building design with stability and high space utilization.

CN122169654APending Publication Date: 2026-06-09COAL IND JINAN DESIGN & RES

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
COAL IND JINAN DESIGN & RES
Filing Date
2026-03-12
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing steel structure dormitory buildings, the exposure of steel components leads to heat loss and thermal bridging problems, occupies indoor space, and reducing the size of components may affect structural stability and seismic performance, making it difficult to achieve high space utilization.

Method used

The prefabricated steel structure adopts prefabricated ultra-narrow flange box-shaped columns, combined with prefabricated boundary structures and prefabricated panels on the column sides, and integrates thermal insulation materials to form a concealed layout, ensuring structural stability and space utilization.

Benefits of technology

It effectively alleviates the problem of cold bridging, improves space utilization efficiency, enhances the aesthetics and integration of buildings, reduces project costs, shortens the construction period, and ensures the standardization and quality of pipeline layout.

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Abstract

This invention discloses a prefabricated dormitory building structure with ultra-narrow flange box-shaped irregular columns, belonging to the field of dormitory structure technology. The structure includes steel box-shaped irregular columns, steel beams, walls, and concrete floor slabs. The steel box-shaped irregular column includes a first double web, a second web, a first flange, and a second flange; the first double web is arranged in parallel intervals, with one end vertically connected to the middle of the side of the second web, and the other end connected to the first flange; the second flange connects to both ends of the second web. This invention, through a T-shaped double web layout combined with an ultra-narrow flange design, allows the column to be completely hidden inside the wall, solving the problem of protruding columns in the room, significantly improving the space utilization and aesthetics of the dormitory, and providing structural stability, facilitating industrial prefabrication and rapid on-site assembly.
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Description

Technical Field

[0001] This invention relates to the field of dormitory structure technology, and in particular to a dormitory building structure with prefabricated box-shaped irregular columns with ultra-narrow flanges. Background Technology

[0002] Dormitory buildings are a type of public building, characterized by multi-story structures, small room sizes, and complete facilities and equipment.

[0003] In current prefabricated buildings using steel structures, the cross-sectional dimensions of steel columns and beams are often large to meet structural strength requirements, resulting in them protruding significantly from the exterior wall surface after installation. This structural characteristic leads to two prominent drawbacks.

[0004] 1. Exposed steel structural components, especially the flanges and webs of structural steel sections, form significant cold bridges due to the high thermal conductivity of their materials under the influence of temperature differences between the inside and outside. This not only leads to substantial heat loss and increased building energy consumption, but may also cause localized condensation and mold growth, seriously affecting the building's thermal insulation performance and indoor environment.

[0005] 2. These large steel components themselves encroach on interior space. Even if they are later covered by walls or finishes, the volume they occupy cannot be converted into usable area, effectively reducing the building's usable floor area and space utilization efficiency.

[0006] Simply reducing the size of components (such as narrowing the flanges) to alleviate the above problems may weaken the overall stability and seismic performance of the structure. This contradiction is particularly prominent in areas with high seismic fortification, often leading to strict restrictions on the number of floors in buildings (such as multi-story dormitories), making it difficult to achieve higher space utilization and functional requirements.

[0007] Meanwhile, the actual amount of insulation materials, fireproof materials, prefabricated materials, and heat insulation materials used in the construction process also increases, and the corresponding amount of construction work also increases, which is the main reason for the high project cost. Summary of the Invention

[0008] To overcome the shortcomings of the prior art, the present invention provides a prefabricated steel structure dormitory building structure with prefabricated box-shaped columns with ultra-narrow flanges.

[0009] A prefabricated dormitory building structure with ultra-narrow flange box-shaped irregular columns, comprising steel structure box-shaped irregular columns, steel structure beams, walls, and concrete floor slabs, characterized in that: The steel structure box-shaped column includes a first double web, a second web, a first flange, and a second flange; the first double web is arranged in parallel intervals, with one end of it perpendicularly connected to the middle of the side of the second web; the first flange is perpendicularly connected to the other end of the first double web; and the second flange is perpendicularly connected to both ends of the second web.

[0010] Furthermore, in order to better realize the present invention, both the first flange and the second flange are ultra-narrow flange structures, and the width of the first flange matches the total width of the first double web.

[0011] Furthermore, in order to better realize the present invention, the steel structure box-shaped irregular column is T-shaped in general.

[0012] Furthermore, in order to better realize the present invention, the steel structure beam is horizontally arranged between adjacent steel structure box-shaped irregular columns, and the concrete floor slab is laid on the steel structure beam.

[0013] Furthermore, in order to better realize the present invention, the wall is embedded between the limbs of the steel structure box-shaped column.

[0014] Furthermore, in order to better realize the present invention, the dormitory building structure is composed of multiple building units, and a boundary prefabricated structure is provided at the corner of the building unit. The boundary prefabricated structure is prefabricated using steel structure box-shaped irregular columns.

[0015] Furthermore, in order to better realize the present invention, the side of the construction unit is provided with a column side prefabricated plate, which is in contact with the first side plane or the second side plane of the steel structure box-shaped irregular column.

[0016] The beneficial effects of this invention are: Both the prefabricated boundary structure and the prefabricated slabs on the column sides can be composited with fireproof and thermal insulation materials, which can effectively alleviate the problem of cold bridging, and improve the comprehensive utilization rate of materials and structures through integrated design.

[0017] The structure employs a concealed layout, avoiding the occupation of additional building area and thus increasing the actual usable interior space. Factory prefabrication also helps control costs and makes the overall structural performance more stable.

[0018] Precast boundary components and column side panels ensure the continuity of connections and the flatness of the walls, further expanding the effective usable area while also giving the building a unified and elegant appearance.

[0019] The enclosed cross-section within the ultra-narrow flange box-shaped column provides a concealed path for pipelines, avoiding the occupation of interior space and visual interference by exposed pipelines, thus improving the integration and aesthetics of the space. Simultaneously, pipelines can be prefabricated and integrated in advance, reducing on-site installation and shortening the construction period. Factory prefabrication also ensures the standardization of pipeline layout and the controllability of quality. Attached Figure Description

[0020] Fig. 1 This is a three-dimensional structural diagram of the dormitory building structure with prefabricated ultra-narrow flange box-shaped columns according to the present invention. Fig. 2 This is a structural diagram of the ultra-narrow flange box-shaped column of the present invention.

[0021] In the picture, 1-Steel structure box-shaped irregular column; 2-Steel structure beam; 3-Wall; 4-Concrete floor slab; 5-Construction unit; 10-Boundary precast structure; 20-Column side precast slab; a-First side plane; b-Second side plane; 11-First double web; 12-Second web; 13-First flange; 14-Second flange. Detailed Implementation

[0022] 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 a part of the embodiments of the present invention, and not all of them. 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.

[0023] Therefore, the following detailed description of the embodiments of the 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 invention without inventive effort are within the scope of protection of the invention.

[0024] Figs. 1-2 In a specific embodiment of the present invention, a dormitory building structure with prefabricated ultra-narrow flange box-shaped columns is provided. The box-shaped steel column is composed of a set of ultra-narrow flange box-shaped steel and another set of ultra-narrow flange steel connected perpendicularly to each other. The steel structure beam is composed of a set of ultra-narrow flange steel. A first side plane is located between the two sets of steel structure columns in a pre-arranged direction. A second side plane is located between the two sets of steel structure columns in another pre-arranged direction, and the second side plane is perpendicular to the first side plane. Each set of structural units includes at least: a concrete floor slab that can be installed on a steel structural beam, and the concrete floor slab is perpendicular to the first side plane and the second side plane respectively; a boundary prefabricated structure that is used to partially prefabricate on the steel structural column or steel structural beam; and a column side prefabricated slab that can be installed on the concrete floor slab and is used to connect with the boundary prefabricated structure. In any one set of boundary prefabricated structures, one end of the prefabricated slab on the side of the adjacent column has the same first edge line and second edge line on both sides of the cross-sectional width, and the first edge line and the second edge line are parallel to each other. Among them, the flange width of ultra-narrow flange steel is less than or equal to 120mm; The prefabricated boundary structure integrates at least one or more of the following: thermal insulation material layer, heat insulation or fireproof material layer. Specifically, the steel structure box column is constructed by perpendicularly connecting one set of ultra-narrow flange box-shaped steel sections to another set of ultra-narrow flange box-shaped steel sections. An ultra-narrow flange steel box-shaped irregular column structure includes: a first box-shaped steel section; a first double web plate, one end of which is fixedly connected to one of the web plates of the ultra-narrow flange box-shaped steel section; a first flange fixedly connected to the other end of the first double web plate; and a second flange fixedly connected to both ends of a second web plate. The other end of the first flange is fixedly connected to the first waist plate.

[0025] On the other hand, the present invention also proposes a building, including a building structure with prefabricated ultra-narrow flange steel box-shaped irregular columns; wherein, when the building structure with prefabricated ultra-narrow flange steel is arranged on the periphery or corner of the house, the external wall insulation layer can be installed on the building structure with prefabricated ultra-narrow flange steel along the periphery or corner of the house.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A dormitory building structure with prefabricated ultra-narrow flange box-shaped irregular columns, comprising steel structure box-shaped irregular columns (1), steel structure beams (2), walls (3), and concrete floor slabs (4), characterized in that: The steel structure box-shaped column (1) includes a first double web (11), a second web (12), a first flange (13), and a second flange (14); the first double web (11) is arranged in parallel intervals, and one end of it is vertically connected to the middle or end of the side of the second web (12); the first flange (13) is vertically connected to the other end of the first double web (11); the second flange (14) is vertically connected to both ends of the second web (12).

2. The dormitory building structure with prefabricated box-shaped columns with ultra-narrow flanges as described in claim 1, characterized in that: Both the first flange (13) and the second flange (14) are ultra-narrow flange structures, and the width of the first flange (13) matches the total width of the first double web (11).

3. The dormitory building structure with prefabricated box-shaped columns with ultra-narrow flanges as described in claim 1, characterized in that: The steel structure box-shaped irregular column (1) has an overall T-shaped structure, which is composed of a set of ultra-narrow flange box-shaped steel and another set of ultra-narrow flange box-shaped steel connected perpendicularly to each other.

4. The dormitory building structure with prefabricated box-shaped columns with ultra-narrow flanges as described in claim 1, characterized in that: The steel structure beam (2) is horizontally set between adjacent steel structure box-shaped columns (1), and the concrete floor slab (4) is laid on the steel structure beam (2).

5. The dormitory building structure with prefabricated box-shaped columns with ultra-narrow flanges as described in claim 1, characterized in that: The wall (3) is embedded between the limbs of the steel structure box-shaped column (1).

6. The dormitory building structure with prefabricated box-shaped columns with ultra-narrow flanges as described in claim 1, characterized in that: The dormitory building structure is composed of multiple building units (5). A boundary prefabricated structure (10) is provided at the corner of the building unit (5). The boundary prefabricated structure (10) is prefabricated using steel box-shaped irregular columns (1).

7. The dormitory building structure with prefabricated box-shaped columns with ultra-narrow flanges as described in claim 6, characterized in that: The side of the structural unit (5) is provided with a precast column side panel (20), which is attached to the first side plane (a) or the second side plane (b) of the steel structure box-shaped column (1).