CN-122013927-A - Lightweight concrete wall for modularized integrated building system

Abstract

A steel-concrete prefabricated hybrid module includes a steel frame and a plurality of lightweight concrete wallboards. The steel frame includes a plurality of steel struts connected at a first end to a plurality of longitudinal ceiling steel beams and connected at a second end to a plurality of longitudinal floor steel beams. A plurality of lightweight concrete wallboards are located between the longitudinal ceiling steel beams and the longitudinal floor steel beams, and each lightweight concrete wallboard includes a lightweight concrete panel having a plurality of reinforcing bars, wherein one end of the reinforcing bars is connected with a first angle steel at the top end of the lightweight concrete panel, and in addition, the bottom end of the lightweight concrete panel has a second angle steel. Wherein, have first connection between first angle steel and vertical ceiling girder steel, and have the second connection between second angle steel and the vertical floor girder steel.

Inventors

• LIU YIFENG
• CONG LIN
• WU YANMIN
• CHEN XUEJUAN

Assignees

• 纳米及先进材料研发院有限公司

Dates

Publication Date

20260512

Application Date

20241111

Claims (9)

1. 1. A steel-concrete prefabricated hybrid module, comprising: a steel frame comprising a plurality of steel struts, a longitudinal ceiling steel beam and a longitudinal floor steel beam, wherein a first end of the steel struts is connected to the longitudinal ceiling steel beam and a second end of the steel struts is connected to the longitudinal floor steel beam; A plurality of lightweight concrete panels installed between the plurality of longitudinal ceiling beams and the longitudinal floor beams, wherein each of the lightweight concrete panels includes a lightweight concrete panel provided with reinforcing bars, one ends of which are connected with a first angle steel at the top end of the lightweight concrete panel; The second angle steel is positioned at the bottom end of the lightweight concrete board, and the second ends of the reinforcing steel bars are connected with the second angle steel; wherein the first angle steel is connected with the longitudinal ceiling steel beam in a first way, and And a second connection is arranged between the second angle steel and the longitudinal floor slab steel beam.
2. 2. The steel-concrete prefabricated hybrid module of claim 1, further comprising employing grout joints between adjacent lightweight concrete panels.
3. 3. The steel-concrete precast hybrid module of claim 1, further comprising a plurality of horizontal beams disposed between the plurality of longitudinal ceiling beams.
4. 4. The steel-concrete precast hybrid module of claim 1, wherein the longitudinal floor beams have floors therebetween.
5. 5. The steel-concrete prefabricated hybrid module of claim 1, wherein said first and second connections are made by welding.
6. 6. The steel-concrete prefabricated mixing module according to claim 1, wherein the density of the lightweight concrete is equal to or less than 1500kg/m 3 .
7. 7. The steel-concrete prefabricated hybrid module of claim 1, wherein the lightweight concrete is foam concrete.
8. 8. The steel-concrete precast hybrid module of claim 7, wherein the lightweight foam concrete comprises a fibrous material.
9. 9. A steel-concrete prefabricated hybrid module usable in high-rise buildings, characterized by comprising a plurality of steel-concrete prefabricated hybrid modules according to claim 1.

Description

Lightweight concrete wall for modularized integrated building system Technical Field The invention relates to a modular integrated building. More particularly, the present invention relates to buildings made up of prefabricated modules, such as modular integrated/prefabricated building, and more particularly to the connection between wall panels and beams within the modules. Background High-rise buildings are generally constructed by adopting a traditional layer-by-layer construction method, and a large amount of concrete pouring works are performed on a construction site according to a linear site construction sequence, so that the high-rise buildings are easily influenced by external factors, such as weather conditions, available manpower and the number of professional workers. In addition, the interior finishing of each floor (such as electric and hydraulic systems) can be performed only after the building is built, and it is difficult to finish the construction at present. Modular integrated construction is a new construction technology, built from individual volume modules that are already internally equipped with decorations, devices and equipment. In general, a prefabricated module is a unit in a building, such as an apartment, an office, or a portion thereof, optionally equipped with plumbing, electrical wiring, built-in cabinets, etc. Prefabricated modules may comprise up to four vertical walls and one ceiling and floor, or fewer than four walls and be provided with only ceilings or floors, and the missing third or fourth wall and ceiling or floor may be provided by adjacent modules. The modules can be prefabricated in a factory and then transported to a construction site to be assembled into a multi-layer building, so that the building can be built in a shorter time by using a modularized integrated building technology, the quality control is better, fewer workers are required, the generation of construction waste is reduced, and in addition, the modularized integrated building can reduce the building cost and provide a safer working environment. There are now more and more residential buildings that employ concrete modular integration technology and many high-rise private residences are beginning to employ this technology because, compared to traditional reinforced concrete buildings, the concrete modular integrated building not only has a look and feel similar to that of traditional reinforced concrete buildings, but also has reduced costs in subsequent inspection and maintenance. In addition, in current concrete modular integrated buildings, lightweight concrete is rarely used on the shear wall structure, mainly because the shear wall needs to provide enough strength to resist vertical and lateral forces and effectively transfer loads to the foundation of the building, while the performance of lightweight concrete generally cannot meet the above structural requirements, but if traditional concrete is used as the shear wall, the use of space and building layout may be inflexible because it is difficult to modify or remove these heavy structural elements without affecting the structural integrity of the building. Another challenge with concrete modular integrated buildings is that they require extensive wet work in the field due to the existing joint designs. These designs typically involve overlapping rebars between modules and casting concrete in situ, or using semi-prefabricated panels with exposed rebars and walls, casting concrete into designated connection areas or cavities in situ. Thus, a new form of modular construction has developed that is a steel-concrete hybrid modular construction in an attempt to combine the advantages of steel and concrete. Such modules typically include steel frames that provide flexibility and portability to steel and concrete walls and floors, while the concrete elements provide strength, durability, and thermal insulation to the concrete. The modules may be custom designed based on the nature of the material, for example, steel may be used where flexibility and speed are desired, and concrete may be used where strength and thermal insulation properties are desired. The steel frame can bear tensile force and has flexibility, and the concrete wall body and the floor slab can bear pressure, and the heat preservation and insulation performance is good, thereby reinforcing energy efficiency and thermal comfort, in addition, the concrete can also provide the sound insulation effect, and has fireproof performance. By combining steel and concrete, the resulting modular building is not only durable, fire-resistant, insect-resistant, but also resistant to environmental stresses. The steel-concrete mixing module can be prefabricated in a factory and efficiently assembled on site, thereby shortening the construction time. Because the hybrid module is lighter in weight, it is more suitable for high-rise buildings, complex construction projects, or structures requiring high