A splicing structure of precast concrete modules

Abstract

The utility model discloses a kind of splicing structure of precast concrete module, the splicing structure is formed by two prefabricated modules in situ splicing and pouring, and the prefabricated module is built-in structure column longitudinal reinforcement and closed half-column stirrup, and spiral stirrup and horizontal lap stirrup are used in post-cast area, and two prefabricated modules are connected into a whole.The column steel of the utility model does not need to be bound in situ, which is beneficial to shorten construction period, and the composite column module is included in structure stress section, without occupying indoor use space.At the same time, the stirrup vertical of the intermediate region of the composite column of two prefabricated modules is connected using spiral steel, which restrains column core area concrete, enhances column bearing capacity, and improves the structural stress performance of building.

Description

Technical Field

[0001] This utility model belongs to the field of modular concrete building technology, and in particular relates to a splicing structure for precast concrete modules. Background Technology

[0002] Modular building is a highly integrated prefabricated assembly system. The construction method involves manufacturing modular units in a factory, transporting them to the construction site, and then assembling them into a complete building structure. Modular construction achieves full prefabrication, full decoration, and full assembly, representing the most advanced green construction method in terms of industrialization. The high integration of modular building factories helps improve on-site construction efficiency and promotes the transformation and development of building industrialization.

[0003] In existing modular concrete buildings, vertical load-bearing columns are commonly constructed using formwork columns. This type of structure has the following drawbacks:

[0004] 1. Long construction period: The steel bars of the structural columns need to be tied on site, and some locations also need to be re-formed;

[0005] 2. Redundancy in building space: The formwork columns are not included in the structural column section, thus occupying part of the building space;

[0006] 3. The structural self-weight of a building has an unclear impact on its load-bearing performance, posing certain safety hazards. Utility Model Content

[0007] The purpose of this utility model is to provide a splicing structure for precast concrete modules, which can solve the problems of long construction period, redundant building space, and unclear impact of the building's structural self-weight on the structural stress performance, which pose certain safety hazards when some formwork columns are erected on site.

[0008] This utility model is implemented as follows: a splicing structure of precast concrete modules includes a first precast module, a second precast module, lap stirrups, structural longitudinal bars, and spiral stirrups; the first precast module has a first composite beam, a first precast beam, and a first composite column, and the second precast module has a second composite beam, a second precast beam, and a second composite column.

[0009] The first composite column includes a first structural column longitudinal reinforcement, a first closed half-column stirrup, and a first open area. The outer sides of the first structural column longitudinal reinforcement and the first closed half-column stirrup are embedded in the concrete of the first composite column, and the inner side of the first closed half-column stirrup is located in the first open area. The second composite column includes a second structural column longitudinal reinforcement, a second closed half-column stirrup, and a second open area. The outer side of the second closed half-column stirrup is embedded in the concrete of the second composite column, and the inner side of the second closed half-column stirrup is located in the second open area.

[0010] The inner sides of the first and second closed semi-column stirrups are fixedly overlapped with the structural longitudinal reinforcement and the spiral stirrups.

[0011] The first prefabricated module and the first prefabricated module are arranged opposite to each other, and the first opening area and the second opening area together form a cavity, which is filled with concrete.

[0012] In some implementations, multiple spaced vertical connecting ribs of the modules are also embedded in the cavity.

[0013] In some implementations, the splicing structure further includes horizontally arranged beam top lap reinforcement bars, which connect the first composite beam, the first composite column, the second composite column, and the second composite beam.

[0014] In some implementations, both the first and second closed half-column stirrups are rectangular, and the cavity is rectangular.

[0015] Compared with the prior art, the advantages of this utility model are as follows:

[0016] The splicing structure provided by this utility model consists of two prefabricated modules assembled and cast on site. Each prefabricated module contains longitudinal reinforcement for the structural column and closed half-column stirrups. The post-cast area uses spiral stirrups and horizontal lapped stirrups to connect the two prefabricated modules into a single unit. In this embodiment, the column reinforcement does not need to be tied on site, which helps shorten the construction period. The composite column module is included in the structural load-bearing section and does not occupy indoor usable space. Simultaneously, the stirrups in the middle area of ​​the composite column of the two prefabricated modules are vertically connected using spiral reinforcement, constraining the concrete in the core area of ​​the column, enhancing the column's load-bearing capacity, and improving the structural performance of the building. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the horizontal cross-section of the top beam of a precast concrete module splicing structure provided in this embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the horizontal cross-section of the middle position of a composite column of a precast concrete module splicing structure provided in this embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the horizontal cross-section of the bottom beam of a precast concrete module splicing structure provided in this embodiment of the present invention;

[0020] Figure 4 It is along Figure 1 Sectional view along section AA;

[0021] Figure 5 It is along Figure 1 A sectional view along the BB section;

[0022] Figure 6 This is a schematic diagram of the structure of the two prefabricated modules before they are spliced ​​together, as provided in this embodiment of the utility model. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Please see Figures 1 to 5 This embodiment shows a splicing structure for precast concrete modules, including a first precast module 1, a second precast module 2, lap stirrups 3, structural longitudinal bars 4, and spiral stirrups 5.

[0026] Please refer to Figure 6 The first precast module 1 has a first composite beam 11, a first precast beam 12, and a first composite column 13. The second precast module 2 has a second composite beam 21, a second precast beam 22, and a second composite column 23. The first composite column 13 includes a first structural column longitudinal reinforcement 131, a first closed half-column stirrup 132, and a first open area 133. The outer side of the first closed half-column stirrup 132 is embedded in the concrete of the first composite column 13, and the inner side of the first closed half-column stirrup 132 is located in the first open area 133. The second composite column 23 includes a second structural column longitudinal reinforcement 231, a second closed half-column stirrup 232, and a second open area 233. The outer side of the second closed half-column stirrup 232 is embedded in the concrete of the second composite column 23, and the inner side of the second closed half-column stirrup 232 is located in the second open area 233.

[0027] The inner sides of both the first closed semi-column stirrup 132 and the second closed semi-column stirrup 232 are fixedly lapped with the structural longitudinal reinforcement 4 and the spiral stirrup 5.

[0028] The first prefabricated module 1 and the first prefabricated module 2 are arranged opposite to each other. The first opening area 133 and the second opening area 233 together form a cavity, which is filled with concrete 6. In this embodiment, the first closed half-column stirrup 132 and the second closed half-column stirrup 232 are both rectangular, and the cavity is rectangular.

[0029] Furthermore, multiple spaced vertical connecting ribs 7 are embedded within the cavity.

[0030] At the top of the composite beam, there is also a beam top lap reinforcement 8, which is horizontally set and used to connect the first composite beam 11, the first composite column 13, the second composite column 21 and the second composite beam 23.

[0031] The splicing structure provided in this embodiment has prefabricated modules with built-in structural column longitudinal reinforcement and closed half-column stirrups during factory production. These modules integrate beams, partition walls, and other components, and are then assembled on site. After the two modules are assembled, the lap stirrups and structural longitudinal reinforcements are placed in the cavity between the modules and fixedly connected to the side of the closed half-column stirrups. At the same time, the spiral stirrups 5 are rotated and installed at the core area of ​​the column. Finally, concrete 6 is poured to form an integral structure.

[0032] As can be seen, the spliced ​​structure in this embodiment is formed by assembling and casting two prefabricated modules on site. The prefabricated modules contain internal longitudinal reinforcement for the structural columns and closed half-column stirrups. The post-cast area uses spiral stirrups 5 and lap stirrups 3 to connect the two prefabricated modules into a single unit. Compared with existing technologies, the column reinforcement in this embodiment does not require on-site tying, which helps to shorten the construction period. The composite column module is included in the structural load-bearing section and does not occupy indoor usable space. The stirrups in the middle area of ​​the composite column of the two prefabricated modules are vertically connected using spiral reinforcement 5, confining the concrete in the core area of ​​the column, enhancing the column's load-bearing capacity, and improving the structural performance of the building.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A splicing structure for precast concrete modules, characterized in that, It includes a first precast module, a second precast module, lapped stirrups, structural longitudinal reinforcement, and spiral stirrups; the first precast module has a first composite beam, a first precast beam, and a first composite column, and the second precast module has a second composite beam, a second precast beam, and a second composite column; The first composite column includes a first structural column longitudinal reinforcement, a first closed half-column stirrup, and a first open area. The outer sides of the first structural column longitudinal reinforcement and the first closed half-column stirrup are embedded in the concrete of the first composite column, and the inner side of the first closed half-column stirrup is located in the first open area. The second composite column includes a second structural column longitudinal reinforcement, a second closed half-column stirrup, and a second open area. The outer side of the second closed half-column stirrup is embedded in the concrete of the second composite column, and the inner side of the second closed half-column stirrup is located in the second open area. The inner sides of the first and second closed semi-column stirrups are fixedly overlapped with the structural longitudinal reinforcement and the spiral stirrups. The first prefabricated module and the first prefabricated module are arranged opposite to each other, and the first opening area and the second opening area together form a cavity, which is filled with concrete.

2. The splicing structure according to claim 1, characterized in that, The cavity also contains multiple spaced vertical connecting ribs for the modules.

3. The splicing structure according to claim 1, characterized in that, It also includes horizontally arranged beam top lap reinforcement bars, which connect the first composite beam, the first composite column, the second composite column, and the second composite beam.

4. The splicing structure according to claim 1, characterized in that, Both the first and second closed half-column stirrups are rectangular, and the cavity is rectangular.

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