Reinforced concrete module based on prestress technology and house

Abstract

The utility model belongs to the field of modular house construction, and discloses a reinforced concrete module and a house based on a prestress technology, which are formed by assembling unitized modules on site. Wherein the unitized modules are three-dimensional box-type components which are formed by integrally prefabricating reinforced concrete frame beams, columns and plates in a factory, and the reinforced concrete module house is formed by assembling the three-dimensional box-type components on site through connecting steel plates by adopting post-tensioning prestress. After the unit modules are integrally assembled, the steel cables are tensioned on site, then grouting is conducted, and finally the laminated roof panels are integrally cast in place, so that the structural integrity is enhanced. The prestressed reinforced concrete module house is low-carbon, environment-friendly, small in assembly number, high in efficiency, capable of achieving on-site rapid assembly, good in house integrity, short in construction period, capable of saving construction cost, safe, reliable and excellent in anti-seismic performance.

Description

Technical Field

[0001] The utility model relates to the field of modular houses, and specifically provides a reinforced concrete module and a house based on prestressed technology. Background Art

[0002] Modular concrete structures are made of three-dimensional modules prefabricated in factories and assembled and connected on site. They are widely used in buildings with regular and repeated units, such as apartments, hotels, and student dormitories. Practice has shown that the use of modular concrete structures can speed up project progress, reduce on-site workload, and reduce pollution. It is one of the important development directions for my country to promote building industrialization and intelligent construction.

[0003] Compared with traditional cast-in-place structures and conventional component-level prefabricated structures, the relevant technologies of modular concrete structures at home and abroad are still immature. They are usually used in non-seismic areas or buildings with no more than three floors, and often adopt the form of external additional structures to meet the requirements of integrity and seismic performance. Although they have good bearing capacity and deformation capacity, they still have problems such as low assembly rate, poor integrity and poor seismic performance.

[0004] CN219753490U discloses a prestressed modular house, which is assembled from a number of unitized modular houses. There are prestressed structures on the columns and beams of the unitized modules. However, the prestressed modular house is tensioned by three-way prestressed steel cables, the connection is complicated and the overall performance of the house is poor. A single module is only one room, a large number of modules are required and assembly is relatively laborious.

[0005] In order to improve the performance of modular building structures, increase the efficiency of on-site assembly of houses, and enhance the overall stress performance and seismic performance of the entire structure, this field needs a new structural system that meets the national sustainable development requirements to solve the above problems. Utility Model Content

[0006] In order to solve the problems in the prior art of low module utilization, large number of assemblies, low assembly and construction efficiency, poor overall performance and seismic performance, and high cost, the utility model provides a reinforced concrete module and house based on prestressed technology.

[0007] The main idea of ​​the utility model is as follows: the reinforced concrete unitized modules are prefabricated as a whole in the factory, connected on site by connecting steel plates, prestressed steel cables are passed through the frame columns and longitudinal frame beams, tensioned by post-tensioning technology, and finally the roof panels are cast in situ. This reinforced concrete modular house assembled by unitized modules using post-tensioning can effectively solve the problems of low assembly rate, poor integrity, and poor seismic performance of traditional concrete modular houses.

[0008] The reinforced concrete modular house based on prestressed technology provided by the utility model is assembled on site through unitized modules; wherein the unitized modules are three-dimensional box-type components prefabricated as a whole in a factory by reinforced concrete frame beams, columns, and plates, and are assembled on site by connecting steel plates using post-tensioned prestressing to form a reinforced concrete modular house. After the overall assembly of the unitized modules is completed, the steel cables are tensioned on site and then grouting is performed, and finally the composite roof panels are cast in place as a whole to enhance the integrity of the structure. This prestressed reinforced concrete modular house is low-carbon and environmentally friendly, can be quickly assembled on site, has good house integrity, a short construction period, saves construction costs, is safe and reliable, and has excellent earthquake resistance.

[0009] The specific technical solution of the utility model is as follows:

[0010] A reinforced concrete module based on prestressed technology, the module includes a vertical frame column, a top transverse frame beam and a top longitudinal frame beam connected to the frame column above the frame column, a reserved hole is arranged inside the frame column along the extension direction of the frame column, a reserved hole is arranged inside the top longitudinal frame beam along the extension direction of the top longitudinal frame beam, and a reserved hole is arranged inside the bottom longitudinal frame beam along the extension direction of the bottom longitudinal frame beam.

[0011] Through the reserved holes, prestressing in two directions can be achieved after the unitized modules are assembled into a house.

[0012] Preferably, the frame column is connected to the top transverse frame beam and the bottom transverse frame beam, the top longitudinal frame beam and the bottom longitudinal frame beam as a whole, and a wall covering the module is arranged between the frame column and the top and bottom frame beams; a bottom floor panel covering the module is arranged between the bottom transverse frame beam and the bottom longitudinal frame beam, and there is no covering between the top transverse frame beam and the top longitudinal frame beam.

[0013] No covering floor panels or roof panels are set on the top of the module, which improves efficiency and reduces costs. After the modules are assembled, the roof is cast in situ, thereby improving the overall performance and earthquake resistance of the module house after assembly.

[0014] Preferably, the module includes eight frame columns, four top longitudinal frame beams and four bottom longitudinal frame beams, wherein four vertical frame columns at a certain distance from the ends of the transverse frame beams are symmetrically arranged along the axial directions of the transverse frame beams on both sides of the module along the center of the corresponding transverse frame beams, and the frame columns at a certain distance from the ends of the transverse frame beams can be installed with walls in the module to form a corridor, and the size of the corridor is related to the horizontal distance between two laterally adjacent non-end frame columns, and the distance between the frame column and the end of the transverse frame beam is related to the size of the room separated by a single module, which can be determined according to actual needs. The frame columns are symmetrical along the central axis in the transverse and longitudinal directions of the module, and the top longitudinal frame beam and the bottom longitudinal frame beam are fixedly arranged between two longitudinally symmetrically arranged frame columns.

[0015] Preferably, a wall is arranged inside the module, between the frame columns and the top longitudinal frame beams and the bottom longitudinal frame beams.

[0016] By adjusting the number of frame columns and frame beams of the module through the above method, and setting walls inside the module corresponding to the frame beams and frame columns, the volume of the single module can be increased, rapid assembly can be achieved, the number of assemblies can be reduced, and the on-site assembly speed can be effectively improved.

[0017] Preferably, openings are provided on the wall between the top transverse frame beam, the bottom transverse frame beam and the frame columns on both sides of the module, and between the frame columns arranged in the middle of the transverse frame beam.

[0018] The opening can be used as a corridor after the modules are assembled, which further improves the assembly efficiency of the house and increases the volume of the modules.

[0019] Preferably, the reserved holes in the frame columns, the reserved holes in the top longitudinal frame beams and the reserved holes in the bottom longitudinal frame beams are staggered and not connected to each other.

[0020] After obtaining the above-mentioned reinforced concrete module based on prestressing technology, the inventor further provides a corresponding reinforced concrete module house, which is assembled on site using unitized modules and post-tensioned prestressing. The unitized modules are arranged in a rectangular shape in the plane direction and the vertical direction; the reserved holes in the top longitudinal frame beam and the reserved holes in the bottom longitudinal frame beam of the module in the plane direction are horizontally connected respectively; the reserved holes in the frame columns of the module in the vertical direction are vertically connected for subsequent prestressing.

[0021] Preferably, steel plates are provided at both ends of the frame columns of the module, and steel plates are provided at both ends of the top longitudinal frame beam and the bottom longitudinal frame beam; the dimensions of the above steel plates correspond to the cross-sections of the corresponding frame columns or frame beams; the above steel plates are provided with corresponding through holes at the corresponding positions of the reserved holes of the corresponding frame columns or frame beams.

[0022] Preferably, prestressed steel cables are arranged through the reserved holes in the vertically penetrating frame beams and the reserved holes in the horizontally penetrating top longitudinal frame beams and the reserved holes in the bottom longitudinal frame beams. The prestressed steel cables can be tensioned by post-tensioning technology.

[0023] Preferably, the roof of the house is an integral cast-in-place composite roof panel. In this solution, no covering roof is provided on the top of the unitized module to save costs and improve efficiency. After the modules are assembled, the roof of the combined modules is cast in-place as a whole to further improve the overall performance and earthquake resistance.

[0024] During the specific construction, the unitized module is a three-dimensional box-type component which is prefabricated as a whole in a factory by reinforced concrete frame beams, columns and slabs, and is composed of frame columns, top transverse frame beams, bottom transverse frame beams, top longitudinal frame beams, bottom longitudinal frame beams, bottom floor panels and walls; wherein the bottom of the frame column is connected to the bottom longitudinal frame beam and the bottom transverse frame beam in pairs as a whole, the top of the frame column is connected to the top longitudinal frame beam and the top transverse frame beam in pairs as a whole, the wall covers the frame column and the top transverse frame beam, the bottom transverse frame beam, the top longitudinal frame beam and the bottom longitudinal frame beam, and the bottom floor panel is arranged between the frame column, the bottom transverse frame beam and the bottom longitudinal frame beam.

[0025] The frame columns and longitudinal frame beams of the modular modules are provided with reserved holes, and the reserved holes in each direction are staggered; connecting steel plates are provided at the ends of the frame columns and longitudinal frame beams of the modular modules, and holes are reserved at the column end connecting steel plates and the longitudinal frame beam end connecting steel plates, respectively, and their positions are consistent with the corresponding connected frame columns and longitudinal frame beams;

[0026] The unitized modules are assembled by connecting steel plates and arranged in a matrix in both the plane and the elevation to ensure that the reserved holes in the frame columns are vertically connected and the reserved holes in the longitudinal frame beams are horizontally connected. After the unitized modules are assembled, prestressed steel cables are respectively passed through the vertical reserved holes and the longitudinal reserved holes and tensioned using post-tensioning prestressing technology. Finally, the composite roof panels are cast in place as a whole.

[0027] Compared with the prior art, the reinforced concrete modular house based on prestressed technology provided by this application has the following advantages:

[0028] (1) Compared with the prestressed concrete modular house with three-way tensioning, the present invention adopts post-tensioning technology after the unitized modules are assembled, and only sets prestressed steel cables in two directions for tensioning the whole house, thereby realizing the rapid assembly of the on-site concrete modular house, improving the construction efficiency, shortening the construction period, and saving the construction cost;

[0029] (2) Compared with traditional concrete modular houses, the unitized modules of the utility model are prefabricated in the factory as a whole, which is low-carbon and environmentally friendly, with guaranteed quality. In addition, the unitized modules include two rooms and a middle corridor. The single module has a large volume and a small number of assemblies, which can greatly improve the on-site assembly speed;

[0030] (3) After the prestressed steel cables are tensioned, the cast-in-place composite roof panels of the reinforced concrete modular house are used to strengthen the overall connection of each unit module on the plane, ensuring that the house has excellent overall performance and earthquake resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the construction of the reinforced concrete module building of this utility model.

[0032] Figure 2 This is a schematic diagram of a reinforced concrete module assembled house of the utility model.

[0033] Figure 3 This is a schematic diagram of the longitudinal section structure of the unitized module of the utility model.

[0034] Figure 4 This is a schematic diagram of the unitized module structure of the utility model.

[0035] Figure 5 This is a schematic diagram of the unitized module assembly plan of the utility model.

[0036] Figure 6 This is a schematic diagram of the assembly elevation of the unitized module of the utility model.

[0037] In the figure, 1-unitized module, 2-frame column, 3-top transverse frame beam, 4-bottom transverse frame beam, 5-top longitudinal frame beam, 6-bottom longitudinal frame beam, 7-bottom floor panel, 8-wall, 9-column end connecting steel plate, 10-longitudinal frame beam end connecting steel plate, 11-prestressed steel cable, 12-roof panel, 13-reserved hole in frame column, 14-reserved hole in top longitudinal frame beam, 15-reserved hole in bottom longitudinal frame beam. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. These embodiments are only used to illustrate the technical solutions of the present invention in more detail and should not be understood as limiting the scope of protection of the present invention.

[0039] Figure 1 This is a schematic diagram of a house that has been completed using the reinforced concrete modular house based on prestressed technology. Figure 2 This is a schematic diagram of the unitized module after it is assembled and penetrated by the prestressed steel cables.

[0040] like Figure 3 and Figure 4 As shown, the unitized module 1 is an upper open three-dimensional box-type component, including a vertically extending frame column 2, a top transverse frame beam 3 and a top longitudinal frame beam 5 arranged along the transverse and longitudinal directions of the frame column 2 above the frame column 2, a bottom transverse frame beam 4 and a bottom longitudinal frame beam 6 arranged along the transverse and longitudinal directions of the frame column 2 below the frame column 2, a bottom floor panel 7 covering the bottom of the unitized module 1 is arranged between the bottom transverse frame beam 4 and the bottom longitudinal frame beam 6, a wall 8 covering the unitized module 1 is arranged between the frame column 2 and two opposite transverse frame beams (the top transverse frame beam 3 and the corresponding bottom transverse frame beam 5) or the longitudinal frame beams arranged on both sides of the unitized module (the top longitudinal frame beam 4 on the side of the unitized module 1 and the corresponding bottom longitudinal frame beam 6); the frame column 2, the top transverse frame beam 3, the top longitudinal frame beam 5, the bottom transverse frame beam 4, the bottom longitudinal frame beam 6, the bottom floor panel 7 and the wall 8 are all prefabricated as a whole in the factory.

[0041] The number and position of the frame columns 2 and frame beams of the unitized module 1 can be adjusted according to actual needs. In this embodiment, the unitized module 1 has eight frame columns 2, two top transverse frame beams 3, two bottom transverse frame beams 4, four top longitudinal frame beams 5 and four bottom longitudinal frame beams 6; Figure 4 As shown, the frame columns 2 are symmetrically arranged along the central axis in the horizontal and vertical directions of the modular module 1, the frame columns 2, the bottom horizontal frame beams 4, and the bottom longitudinal frame beams 6 are connected in pairs as a whole, and the frame columns 2 and the top horizontal frame beams 3 and the top longitudinal frame beams 5 are connected in pairs as a whole; a wall 8 is arranged between the frame column 2 and the two opposite horizontal frame beams (the top horizontal frame beam 3 and the corresponding bottom horizontal frame beam 5) or the two opposite longitudinal frame beams (the top longitudinal frame beam 5 of the modular module 1 and the corresponding bottom longitudinal frame beam 6). In the present embodiment, two horizontal walls, two longitudinal walls covering the modular module 1, and two longitudinal walls arranged inside the modular module 1 are arranged.

[0042] According to actual needs, openings, doors, windows, etc. can be opened on the wall 8. For example, in this embodiment, openings are opened on the transverse wall with the frame column 2 inside the unitized module 1 as the boundary, so that a middle corridor is formed after the modular house is assembled.

[0043] In the production of unitized modules, reserved holes 13 are provided in the frame column 2, reserved holes 14 are provided in the top longitudinal frame beam 5, and reserved holes 15 are provided in the bottom longitudinal frame beam 6. The reserved holes in each direction are staggered and not connected to each other; the reserved holes 13 of the frame column 2 between each unitized module 1 correspond to each other, the reserved holes 14 of the top longitudinal frame beam 5 correspond to each other, and the reserved holes 15 of the bottom longitudinal frame beam 6 correspond to each other; connecting steel plates 9 are provided at both ends of the frame column, and connecting steel plates 10 are provided at both ends of the longitudinal frame beam. The size of the steel plate is the same as the cross-section of the correspondingly connected frame column or longitudinal frame beam, and the positions of the reserved holes of the column end connecting steel plate 9 and the longitudinal frame beam end connecting steel plate 10 are consistent with the reserved holes of the correspondingly connected frame column and frame beam.

[0044] The unitized modules 1 are arranged in a matrix in both the plane and the elevation, ensuring that the reserved holes 13 of the frame columns 2 of the overall assembly structure are vertically connected, and the reserved holes 14 of the top longitudinal frame beams and the reserved holes 15 of the bottom longitudinal frame beams are horizontally connected.

[0045] After the unitized module 1 is assembled, the prestressed steel cables 11 are respectively passed through the vertical reserved holes 13, the longitudinal reserved holes 14, and the longitudinal reserved holes 15. After the prestressed steel cables 11 are passed through, the overall house is as follows: Figure 2 , Figure 5 and Figure 6 As shown, after tensioning using post-tensioning technology, grouting is injected into the reserved hole. The post-tensioning technology is a common method in this field and will not be described in detail here.

[0046] The modular house roof panel adopts a composite roof panel 12. After the prestressed steel cable 11 is tensioned, the roof is cast on the top of the assembled modular house. The overall structure of the house after construction is completed is as follows: Figure 1 shown.

[0047] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A reinforced concrete module based on prestressed technology, the module comprising a frame column (2) in a vertical direction, a top transverse frame beam (3) and a top longitudinal frame beam (5) connected to the frame column (2) above the frame column (2), and a bottom transverse frame beam (4) and a bottom longitudinal frame beam (6) connected to the frame column (2) below the frame column (2), characterized in that: A reserved hole (13) is provided inside the frame column (2) along the extension direction of the frame column, a reserved hole (14) is provided inside the top longitudinal frame beam (5) along the extension direction of the top longitudinal frame beam, and a reserved hole (15) is provided inside the bottom longitudinal frame beam (6) along the extension direction of the bottom longitudinal frame beam.

2. The reinforced concrete module based on prestressed technology according to claim 1 is characterized in that: The frame column (2) is connected to a top transverse frame beam (3) and a bottom transverse frame beam (4), a top longitudinal frame beam (5) and a bottom longitudinal frame beam (6) as a whole; a wall (8) covering the module is arranged between the frame column (2) and the top and bottom frame beams; a bottom floor panel (7) covering the module is arranged between the bottom transverse frame beam (4) and the bottom longitudinal frame beam (6), and the space between the top transverse frame beam (3) and the top longitudinal frame beam (5) is not covered.

3. The reinforced concrete module based on prestressed technology according to claim 2 is characterized in that: The module comprises eight frame columns (2), four top longitudinal frame beams (5) and four bottom longitudinal frame beams (6), wherein four vertical frame columns (2) are symmetrically arranged along the center of the corresponding transverse frame beams in the axial direction of the transverse frame beams on both sides of the module and are at a certain distance from the ends of the transverse frame beams, the frame columns (2) are symmetrical along the central axis in the transverse and longitudinal directions of the module, and the top longitudinal frame beam (5) and the bottom longitudinal frame beam (6) are fixedly arranged between two longitudinally symmetrically arranged frame columns (2).

4. The reinforced concrete module based on prestressed technology according to claim 3 is characterized in that: A wall is arranged inside the module, between the frame column (2) and the top longitudinal frame beam (5) and the bottom longitudinal frame beam (6).

5. The reinforced concrete module based on prestressed technology according to claim 4 is characterized in that: On the wall (8) between the top transverse frame beam (3), the bottom transverse frame beam (4) and the frame columns (2) on both sides of the module, openings are provided between the frame columns (2) provided in the middle of the transverse frame beam.

6. The reinforced concrete module based on prestressed technology according to any one of claims 1 to 5, characterized in that: The reserved holes (13) in the frame columns, the reserved holes (14) in the top longitudinal frame beams and the reserved holes (15) in the bottom longitudinal frame beams are staggered and not connected to each other.

7. A reinforced concrete modular house assembled by reinforced concrete modules based on prestressed technology according to claim 6, characterized in that: The modules (1) are arranged in a rectangular shape in the planar direction and the vertical direction; the reserved holes (14) in the top longitudinal frame beam and the reserved holes (15) in the bottom longitudinal frame beam of the modules (1) in the planar direction are respectively horizontally connected; and the reserved holes (13) in the frame columns (2) of the modules (1) in the vertical direction are vertically connected.

8. The reinforced concrete modular house according to claim 7, characterized in that: Steel plates (9) are provided at both ends of the frame column (2) of the module, and steel plates (10) are provided at both ends of the top longitudinal frame beam (5) and the bottom longitudinal frame beam (6); the size of the steel plates corresponds to the cross section of the corresponding frame column or frame beam; the steel plates are provided with corresponding through holes at corresponding positions of the reserved holes of the corresponding frame column or frame beam.

9. The reinforced concrete modular house according to claim 8, characterized in that: Prestressed steel cables (11) are arranged through the vertically penetrating reserved holes (13) in the frame beam, the horizontally penetrating reserved holes (14) in the top longitudinal frame beam, and the reserved holes (15) in the bottom longitudinal frame beam. The prestressed steel cables (11) are tensioned by post-tensioning prestressing technology.

10. The reinforced concrete modular house according to any one of claims 7 to 9, characterized in that: The roof of the house is an integral cast-in-place composite roof panel (12).

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