Fabricated building structure and fabricated building

Abstract

The utility model provides an assembly type building structure and an assembly type building. The assembly type building structure comprises a plurality of prefabricated stand columns, prefabricated combined secondary beams, prestress laminated slabs and main beams. The main beams are connected between the prefabricated stand columns, the prefabricated combined secondary beams internally provided with steel ribs are connected between the main beams, and the prestressed laminated slabs of a multi-layer structure are arranged on the main beams and the prefabricated combined secondary beams. The prefabricated stand column comprises a prefabricated shell and a reinforcement cage, the reinforcement cage is arranged on the prefabricated shell, a cavity is formed in the prefabricated shell, and concrete is poured in the cavity. The prefabricated vertical members and the prefabricated horizontal members are adopted at the same time, the high assembly rate of an assembly type building is achieved, meanwhile, the construction progress is accelerated under the condition that construction safety is guaranteed, the material cost and the labor cost are further reduced, and the economic efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, and in particular to an assembled building structure and an assembled building. Background Art

[0002] Traditional concrete buildings are wet during concrete pouring, which causes mud to flow across the construction site and a very bad working environment for workers. In the existing concrete building construction process, most of them use traditional full-floor scaffolding support. The vertical supports in the site are densely packed, and the passages are narrow, which affects the entry and exit of construction personnel and the transportation of materials. At the same time, there is no unified standard for scaffolding, and it is installed on site, which poses a great safety hazard. After pouring construction, the scaffolding can only be completely removed when the concrete meets the requirements, resulting in a long circulation cycle and low economic efficiency. In addition, due to the limitations of the on-site environment, the construction quality and maintenance level of concrete components are difficult to guarantee. With the continuous improvement of society's requirements for environmental protection and energy conservation in the construction industry, as well as the increasing labor costs, prefabricated buildings have received more and more attention.

[0003] The main structure of prefabricated buildings is produced in factories and assembled on site, which ensures the product quality of the components. However, existing prefabricated buildings often only use prefabricated horizontal components. As prefabricated vertical components such as prefabricated columns have a large self-weight, transportation and on-site hoisting are difficult. The use of prefabricated vertical components and prefabricated horizontal components at the same time makes construction difficult, resulting in a low assembly rate.

[0004] In view of this, it is necessary to design an assembled building structure and assembled building, and adopt prefabricated vertical components and prefabricated horizontal components at the same time to achieve a high assembly rate of assembled buildings, and at the same time speed up the construction progress while ensuring construction safety, further reduce material costs and labor costs, and improve economic efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide an assembled building structure and an assembled building, so as to solve the problems of low assembly rate, slow progress of construction work and high material cost and labor cost of assembled buildings in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides an assembled building structure, including multiple prefabricated columns, prefabricated composite secondary beams, prestressed composite plates and main beams, the main beams are connected between the prefabricated columns, the prefabricated composite secondary beams with steel frames inside are connected between the main beams, the prestressed composite plates with a multi-layer structure are arranged on the main beams and the prefabricated composite secondary beams, the prefabricated columns include a prefabricated shell and a steel cage, the steel cage is arranged on the prefabricated shell, a cavity is arranged inside the prefabricated shell, and concrete is poured in the cavity.

[0007] By adopting the technical solution disclosed in the utility model, the prefabricated building structure adopts prefabricated vertical components and prefabricated horizontal components at the same time, so as to achieve a high assembly rate of the prefabricated building, accelerate the construction progress while ensuring construction safety, further reduce material costs and labor costs, and improve economic efficiency.

[0008] In the above-mentioned prefabricated building structure, the main beam is connected between two adjacent prefabricated columns, and the prefabricated composite secondary beam is connected between two adjacent parallel main beams.

[0009] In the above-mentioned prefabricated building structure, the steel cage includes longitudinal bars arranged between the inner wall and the outer wall of the prefabricated shell, and stirrups arranged in the prefabricated columns along the length direction of the longitudinal bars, and the stirrups are fixedly connected to the longitudinal bars.

[0010] In the above-mentioned assembled building structure, the longitudinal reinforcement has an extended end extending out of the prefabricated shell, and the main beam is fixedly connected to the extended end.

[0011] In the above-mentioned prefabricated building structure, stirrups are arranged perpendicularly to each other in the prefabricated columns.

[0012] In the above-mentioned prefabricated building structure, the steel frame is H-shaped thin-walled steel, and the H-shaped thin-walled steel includes an upper flange plate, a lower flange plate and a web plate arranged between the upper flange plate and the lower flange plate. A concrete layer is also arranged on the surface of the H-shaped thin-walled steel.

[0013] In the above-mentioned prefabricated building structure, the web is provided with a plurality of through holes, and the through holes are arranged in sequence and at intervals along the length direction of the H-shaped thin-walled steel.

[0014] In the above-mentioned prefabricated building structure, a plurality of longitudinal beam reinforcements are arranged on one side of the lower flange plate facing the upper flange plate, and the longitudinal beam reinforcements are symmetrically arranged on both sides of the web plate.

[0015] In the above-mentioned prefabricated building structure, the prestressed composite slab includes a prefabricated layer and a cast-in-place layer, and the cast-in-place layer is arranged on the prefabricated layer.

[0016] In the above-mentioned prefabricated building structure, prestressed plate longitudinal reinforcement and distribution steel bars are embedded in the prefabricated layer, and the prestressed plate longitudinal reinforcement extends out of the edge of the prefabricated layer.

[0017] In order to better achieve the purpose of the utility model, the utility model also provides a prefabricated building, which adopts the prefabricated building structure as described above.

[0018] Of course, the prefabricated building provided by the present invention corresponds to the above-mentioned prefabricated building structure, and the beneficial technical effects are the same as above.

[0019] In order to have a better understanding of the above and other aspects of the present invention, embodiments are given below and described in detail with reference to the accompanying drawings, but they are not intended to limit the scope of patent protection of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a top view of an assembled building structure according to an embodiment of the utility model.

[0021] Figure 2 The figure is a top view of a prefabricated column according to an embodiment of the utility model.

[0022] Figure 3 This is a front view of a prefabricated column according to an embodiment of the utility model.

[0023] Figure 4 This is a cross-sectional view of a prefabricated composite secondary beam according to an embodiment of the utility model.

[0024] Figure 5 This is a schematic diagram of the steel frame in the prefabricated composite secondary beam according to an embodiment of the utility model.

[0025] Figure 6 Schematic diagram of curling of through holes in a prefabricated composite secondary beam according to an embodiment of the utility model

[0026] Figure 7 This is a schematic diagram of a prestressed composite plate according to an embodiment of the utility model.

[0027] Wherein, the reference numerals are:

[0028] 100-Prefabricated building structure

[0029] 1- Prefabricated columns

[0030] 11-Prefabricated shell

[0031] 111-Cavity

[0032] 12-Reinforcement Cage

[0033] 121-Longitudinal reinforcement

[0034] 1211-Extended end

[0035] 122-Stirrups

[0036] 2- Prefabricated composite secondary beam

[0037] 21- Steel Bone

[0038] 211-Upper flange plate

[0039] 212-Lower flange plate

[0040] 213-belly

[0041] 2131-Through hole

[0042] 2132-Through hole curling

[0043] 214-Concrete layer

[0044] 215-Beam longitudinal reinforcement

[0045] 3-Prestressed composite slab

[0046] 31-Prefab Layer

[0047] 32-cast-in-place layer

[0048] 311-Prestressed slab longitudinal reinforcement

[0049] 312-Distribution steel bars

[0050] 4- Main beam DETAILED DESCRIPTION

[0051] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and beneficial technical effects of the present invention, but it is not intended to limit the scope of protection of the claims attached to the present invention.

[0052] It should be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0053] Certain words are used in the specification and the appended claims to refer to specific components or parts. It should be understood by those skilled in the art that technical users or manufacturers may refer to the same component or part by different nouns or terms. This specification and the appended claims do not distinguish components or parts by differences in names, but by differences in functions of components or parts. In addition, the word "connection" herein includes any direct and indirect means of connection. Indirect means of connection include connection through other devices.

[0054] In addition, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and "approximately", or "approximately", "substantially", "left and right" and the like indicating directions or positional relationships or parameters are all based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description content, and do not indicate or imply that the referred device or element must have a specific direction, specific size, or be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0055] The core of the utility model is to provide a prefabricated building structure and a prefabricated building, which adopts prefabricated vertical components and prefabricated horizontal components at the same time, so as to achieve a high assembly rate of prefabricated buildings, accelerate the construction progress while ensuring construction safety, further reduce material costs and labor costs, and improve economic efficiency.

[0056] See also Figure 1 and Figure 2 , Figure 1 This is a top view of an assembled building structure according to an embodiment of the utility model. Figure 2 The figure is a top view of a prefabricated column according to an embodiment of the utility model.

[0057] The utility model provides an assembled building structure 100, comprising a plurality of prefabricated columns 1, a prefabricated composite secondary beam 2, a prestressed composite plate 3 and a main beam 4. The main beam 4 is connected between the prefabricated columns 1, the prefabricated composite secondary beam 2 with a steel frame 21 disposed therein is connected between the main beams 4, and the prestressed composite plate 3 with a multi-layer structure is disposed on the main beam 4 and the prefabricated composite secondary beam 2. The prefabricated column 1 comprises a prefabricated shell 11 and a steel cage 12, the steel cage 12 is disposed on the prefabricated shell 11, a cavity 111 is disposed inside the prefabricated shell 11, and concrete is poured in the cavity 111.

[0058] As a preferred embodiment, the main beam 4 is connected between two adjacent prefabricated columns 1, and the prefabricated composite secondary beam 2 is connected between two adjacent parallel main beams 1.

[0059] In a specific embodiment, the prefabricated building structure 100 is as follows Figure 1As shown, a plurality of prefabricated columns 1 of each layer are arranged at intervals and the prefabricated columns 1 are fixedly connected to adjacent prefabricated columns 1 by main beams 4. In each structure composed of four prefabricated columns 1 and four main beams 4, a prefabricated composite secondary beam 2 is arranged, and the prefabricated composite secondary beam 2 is connected between two adjacent parallel main beams 4. It should be noted that the structure composed of the prefabricated columns 1 and the main beams 4 can be other, such as a structure composed of three prefabricated columns 1 and three main beams 4 or six prefabricated columns 1 and six main beams 4; the prefabricated composite secondary beam 2 can also be connected between two non-adjacent parallel main beams 4 and the number of prefabricated composite secondary beams 2 can also be other, the main beam 4 is a concrete main beam, and the utility model is not limited thereto.

[0060] In the embodiment of the utility model, by arranging prefabricated columns 1, prefabricated composite secondary beams 2 and prestressed composite plates 3, an assembled building structure using both prefabricated vertical components and prefabricated horizontal components is realized, the application ratio of prefabricated components is increased, and a high assembly rate of the assembled building structure is achieved.

[0061] As a preferred embodiment, the steel cage 12 includes a longitudinal reinforcement 121 disposed between the inner wall and the outer wall of the prefabricated shell 11, and a stirrup 122 disposed in the prefabricated column 1 along the direction of the longitudinal reinforcement 121, and the stirrup 122 is fixedly connected to the longitudinal reinforcement 121. The longitudinal reinforcement 121 has an extended end 1211 extending out of the prefabricated shell 11, and the main beam 4 is fixedly connected to the extended end 1211.

[0062] See also Figure 2 and Figure 3 , Figure 3It is a front view of a prefabricated column of an embodiment of the utility model. In a specific embodiment, the prefabricated column 1 is a cavity column and is composed of a prefabricated shell 11 and a steel cage 12. The longitudinal reinforcement 121 of the steel cage 12 is arranged between the inner wall and the outer wall of the prefabricated shell 11, that is, the longitudinal reinforcement 121 is covered by the prefabricated shell 11 along the height direction of the prefabricated column 1. A plurality of stirrups 122 are fixedly connected to the longitudinal reinforcement 121 along the length direction of the longitudinal reinforcement 121, and the parts where the stirrups 122 are fixedly connected to the longitudinal reinforcement 121 are covered by the prefabricated shell 11. The stirrups 122 are arranged perpendicular to each other in the prefabricated column 1. Specifically, two stirrups 122 and a plurality of longitudinal reinforcements 121 form a tic-tac-toe composite stirrup structure in the cavity 111, and the part forming the composite stirrup is located in the cavity 111, and concrete is poured in the cavity 111. In addition, the longitudinal reinforcement 121 also has an extended end 1211 extending out of the prefabricated shell 11, and the main beam 4 is fixedly connected to the extended end 1211 by cast-in-place concrete. Specifically, the outer dimension of the prefabricated shell 11 is equal to the column dimension of the prefabricated column 1, which can be set according to actual engineering needs; the thickness of the prefabricated shell 11 is 60 mm, and the prefabricated shell 11 is a concrete structure; the extended end 1211 of the longitudinal reinforcement 121 extends out of the prefabricated shell 11 by at least 50 cm, and the number of stirrups 122 can also be more, and the utility model is not limited thereto.

[0063] In the embodiment of the utility model, the prefabricated column 1 is prefabricated in a factory and a cavity is provided inside the prefabricated shell 11, which can be filled with concrete after the prefabricated column 1 arrives at the construction site for assembly. The prefabricated column 1 effectively increases the application ratio of structural prefabricated components, while greatly reducing the weight of the components and reducing the difficulty of transportation and construction.

[0064] As a preferred embodiment, the steel frame 21 is an H-shaped thin-walled steel, which includes an upper flange plate 211, a lower flange plate 212, and a web plate 213 disposed between the upper flange plate 211 and the lower flange plate 212. A concrete layer 214 is also disposed on the surface of the H-shaped thin-walled steel. The web plate 213 is provided with a plurality of through holes 2131, which are sequentially spaced along the length direction of the H-shaped thin-walled steel.

[0065] Furthermore, a plurality of longitudinal beam ribs 215 are disposed on a side of the lower flange plate 212 facing the upper flange plate 211 , and the longitudinal beam ribs 215 are symmetrically disposed on both sides of the web plate 213 .

[0066] See also Figures 4 to 6 , Figure 4 This is a cross-sectional view of a prefabricated composite secondary beam according to an embodiment of the utility model. Figure 5 This is a schematic diagram of a steel frame in a prefabricated composite secondary beam according to an embodiment of the utility model. Figure 6The schematic diagram of the curling of the through hole in the prefabricated composite secondary beam of one embodiment of the utility model. In a specific embodiment, the prefabricated composite secondary beam 2 is a large-span support-free secondary beam, which is composed of a steel frame 21 covered with a concrete layer 214. The steel frame 21 is an H-shaped thin-walled steel, and the thickness of the upper flange plate 211 and the lower flange plate 212 is greater than the thickness of the web 213, and the H-shaped thin-walled steel is convenient for punching out a notch. Among them, the web 213 bears the main beam bending moment, and the role of the concrete layer 214 is to resist compression and protect the steel frame 21. In addition, if the lower flange plate 212 of the H-shaped thin-walled steel cannot meet the force requirements of the beam structure, two beam longitudinal reinforcements 215 are symmetrically arranged on the side of the lower flange plate 212 facing the upper flange plate 211 and along both sides of the web 213, so as to enhance the supporting force of the prefabricated composite secondary beam 2 through the beam longitudinal reinforcements 215 when the lower flange plate 212 is insufficient to resist the beam bending moment. The two ends of the longitudinal reinforcement 215 are flush with the two ends of the prefabricated composite secondary beam 2 and do not extend into the main beam 4 connected to the prefabricated composite secondary beam 2. Further, the web 213 is provided with a plurality of through holes 2131, which are sequentially arranged at intervals along the length direction of the H-shaped thin-walled steel, and the through hole curling edges 2132 punched out of the through holes 2131 are alternately distributed on both sides of the web 213, and the through hole curling edges 2132 are naturally rolled toward both sides of the web 213, which facilitates the concrete to pass through the steel frame 21 during prefabrication and enhances the bonding ability between the steel frame 21 and the concrete layer 214, thereby further improving the integrity of the steel frame 21 and the concrete layer 214. It should be noted that the number and diameter of the longitudinal reinforcement 215 of the beam may also be other, and they are asymmetrically arranged along the two sides of the web 213; the through holes 2131 are square holes and the intervals between the multiple through holes 2131 are the width of at least one through hole 2131, the through holes 2131 are arranged in the middle of the web 213 and are evenly arranged along the center line of the web 213, and the side length of the through holes 2131 is not less than 150 mm, but the utility model is not limited to this.

[0067] In the embodiment of the utility model, the structure of the steel frame 21, the beam longitudinal reinforcement 215 and the concrete layer 214 can reduce the support or eliminate the support in a large span, while reducing the cost of support materials and labor costs, thereby shortening the construction period.

[0068] As a preferred embodiment, the prestressed composite slab 3 includes a prefabricated layer 31 and a cast-in-place layer 32, wherein the cast-in-place layer 32 is disposed on the prefabricated layer 31. Further, the prefabricated layer 31 is embedded with prestressed slab longitudinal reinforcement 311 and distribution reinforcement 312, and the prestressed slab longitudinal reinforcement 311 extends out of the edge of the prefabricated layer 31.

[0069] See also Figure 7 , Figure 7The schematic diagram of a prestressed composite slab according to an embodiment of the utility model. In a specific embodiment, the prestressed composite slab 3 includes a two-layer structure, namely a prefabricated layer 31 and a cast-in-place layer 32. The prefabricated layer 31 is a concrete layer prefabricated in a factory, and the cast-in-place layer 32 is a cast-in-place concrete layer cast on the prefabricated layer 31 after the prefabricated layer 31 is erected at the construction site. In addition, prestressed slab longitudinal reinforcement 311 and distribution reinforcement 312 are also pre-embedded in the prefabricated layer 31. The distribution reinforcement 312 is arranged on the prestressed slab longitudinal reinforcement 311 and is staggered with the prestressed slab longitudinal reinforcement 311. The end of the prestressed slab longitudinal reinforcement 311 extends out of the prefabricated layer 31, and is connected to the reinforcement of the main beam 4 and cast in the main beam 4. The prestressed slab longitudinal reinforcement 311 is used to increase the prestress of the prefabricated layer 31 during the production process. It should be noted that the thickness of the prefabricated layer 31 is not less than 60 mm, and the pre-camber is 0.20%; the length of the prestressed plate longitudinal reinforcement 311 extending out of the prefabricated layer 31 is not less than 50 mm; the thickness of the cast-in-place layer 32 is not less than 70 mm, but the utility model is not limited to this.

[0070] In the embodiment of the utility model, by setting a structure combining a prestressed composite plate 3 and a prefabricated composite secondary beam 2, the number of on-site supports can be effectively reduced, or even no support is required, thereby reducing support material costs and labor costs, thereby shortening the construction period.

[0071] The prefabricated building structure 100 provided by the utility model realizes a prefabricated building structure that uses both prefabricated vertical components and prefabricated horizontal components by providing prefabricated columns 1, prefabricated composite secondary beams 2, and prestressed composite plates 3, and can effectively reduce the number of scaffolding supports used on the construction site. In contrast, due to the large deadweight of prefabricated vertical components, transportation and on-site hoisting are difficult, and the assembly rate of prefabricated buildings in the prior art is not high because only prefabricated horizontal components are used. Therefore, the prefabricated building structure 100 provided by the utility model uses both prefabricated vertical components and prefabricated horizontal components to achieve a high assembly rate of prefabricated buildings, while speeding up the construction progress while ensuring construction safety, further reducing material costs and labor costs, and improving economic efficiency.

[0072] In order to better achieve the purpose of the utility model, the utility model also provides a prefabricated building, which adopts the prefabricated building structure 100 as described above.

[0073] The above is a detailed introduction to the prefabricated building structure and prefabricated building provided by the utility model. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0074] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An assembled building structure, comprising a plurality of prefabricated columns, prefabricated composite secondary beams, prestressed composite slabs and main beams, characterized in that: The main beam is connected between the prefabricated columns, the prefabricated composite secondary beam with a steel frame inside is connected between the main beams, the prestressed composite plate with a multi-layer structure is arranged on the main beam and the prefabricated composite secondary beam, the prefabricated column includes a prefabricated shell and a steel cage, the steel cage is arranged on the prefabricated shell, a cavity is arranged inside the prefabricated shell, and concrete is poured in the cavity.

2. The assembled building structure according to claim 1, characterized in that: The main beam is connected between two adjacent prefabricated columns, and the prefabricated composite secondary beam is connected between two adjacent parallel main beams.

3. The assembled building structure according to claim 1 or 2, characterized in that: The steel cage includes longitudinal bars arranged between the inner wall and the outer wall of the prefabricated shell, and stirrups arranged in the prefabricated columns along the length direction of the longitudinal bars, and the stirrups are fixedly connected to the longitudinal bars.

4. The assembled building structure according to claim 3, characterized in that: The longitudinal reinforcement has an extended end extending out of the prefabricated shell, and the main beam is fixedly connected to the extended end.

5. The assembled building structure according to claim 3, characterized in that: The stirrups are arranged perpendicularly to each other in the prefabricated columns.

6. The assembled building structure according to claim 1 or 2, characterized in that: The steel frame is an H-shaped thin-walled steel, which includes an upper flange plate, a lower flange plate, and a web plate arranged between the upper flange plate and the lower flange plate. A concrete layer is also arranged on the surface of the H-shaped thin-walled steel.

7. The assembled building structure according to claim 6, characterized in that: The web is provided with a plurality of through holes, and the through holes are sequentially spaced apart along the length direction of the H-shaped thin-walled steel.

8. The assembled building structure according to claim 6, characterized in that: A plurality of longitudinal beam reinforcements are arranged on a side of the lower flange plate facing the upper flange plate, and the longitudinal beam reinforcements are symmetrically arranged on both sides of the web plate.

9. The assembled building structure according to claim 1 or 2, characterized in that: The prestressed composite slab comprises a prefabricated layer and a cast-in-place layer, wherein the cast-in-place layer is arranged on the prefabricated layer.

10. The assembled building structure according to claim 9, characterized in that: Prestressed plate longitudinal reinforcement and distributed steel bars are embedded in the prefabricated layer, and the prestressed plate longitudinal reinforcement extends out of the edge of the prefabricated layer.

11. An assembled building, characterized in that: An assembled building structure as described in any one of claims 1 to 10 is adopted.

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