Prefabricated assembly type notch plate connecting joint based on concrete modular integrated building

Abstract

The utility model provides a prefabricated assembly type notch plate connecting joint based on a concrete modular integrated building. The prefabricated assembly type notch plate connecting joint comprises a first prefabricated floor slab and a second prefabricated floor slab which are both provided with notches. A transverse main reinforcement of the first prefabricated floor extends out of the left side face towards the left end to form a first connection reinforcement. The stirrups at the notches form connection reinforcing steel bars II; the cross section of the prefabricated floor slab II is L-shaped; the right end of a transverse main reinforcement of the second prefabricated floor extends out of the right side face to form a third connection reinforcement, and a reserved L-shaped notch is formed in the splicing position of the first prefabricated floor and the second prefabricated floor; and through post-pouring of the L-shaped notches, mutual consolidation of the first prefabricated floor slab and the second prefabricated floor slab is achieved, so that the structure has good integrity and anti-seismic performance. According to the MIC box body structure, the L-shaped notches are reserved between the prefabricated floor slabs of the box body, and the connecting steel bars are in lap joint at the notches, so that reliable connection is formed between the two prefabricated floor slabs and the MIC box body through post-pouring concrete at the notches, and the structure has good integrity and excellent anti-seismic performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to modular integrated building technical field, especially a prefabricated assembly type notched plate connecting joint based on concrete modular integrated building. BACKGROUND

[0002] Modular integrated building, also known as MIC, is an advanced assembly type building, which takes a certain building unit as a prefabricated module, and the building form is installed on the site after prefabrication in the factory. Each unit integrates structure, interior and exterior decoration, and electromechanical elements, and all are completed in the factory. The construction site is assembled by reliable connection, which completes the construction of the whole project and realizes high integration and efficient construction. The connection between the MIC boxes makes the plates between the boxes discontinuous, and the overall performance and structural seismic performance of the box are weak, so a prefabricated assembly type notched plate connecting joint based on concrete modular integrated building is needed to solve the above problems. UTILITY MODEL CONTENTS

[0003] The utility model discloses a prefabricated assembly type notched plate connecting joint based on concrete modular integrated building, which reserves an L-shaped notch between the prefabricated floor slabs of the box and a joint form of lap joint connecting steel bars at the notch, and forms reliable connection between the two prefabricated floor slabs and the MIC box through post-cast concrete at the notch, so that the structure has good overall performance and excellent seismic performance.

[0004] In order to achieve the above purpose, the utility model is realized through the following technical scheme: a prefabricated assembly type notched plate connecting joint based on concrete modular integrated building, comprising prefabricated floor slab one and prefabricated floor slab two which are both provided with notches; the left side of the horizontal main reinforcement of the prefabricated floor slab one extends to the left end to form connecting steel bar one; the hoop reinforcement at the notch forms connecting steel bar two; the cross section of the prefabricated floor slab two is L-shaped; the right end of the horizontal main reinforcement of the prefabricated floor slab two extends to the right side to form connecting steel bar three, and the joint position of the prefabricated floor slab one and the prefabricated floor slab two is an L-shaped notch reserved; the L-shaped notch is post-cast to realize the mutual consolidation of the prefabricated floor slab one and the prefabricated floor slab two, so that the structure has good overall performance and seismic performance.

[0005] Further, the connecting steel bar one of the prefabricated floor slab one and the connecting steel bar three of the prefabricated floor slab two are divided into two rows; the upper row of connecting steel bar three extends out of the recess of the prefabricated floor slab two and is lap jointed with the upper row of connecting steel bar one of the prefabricated floor slab one and the connecting steel bar two at the L-shaped notch; the lower row of bent connecting steel bar three extends out of the outer convex part of the prefabricated floor slab two and is lap jointed with the bent connecting steel bar one of the lower row of the prefabricated floor slab, so as to improve the mutual bonding degree of the prefabricated assembly type plate components through the lap joint of the steel bars.

[0006] Further as the improvement of the technical scheme of the utility model, the top surface of the prefabricated floor one is flush with the top surface of the prefabricated floor two; the joint of the prefabricated floor one and the prefabricated floor two is the position of the bending point of the bending moment of the plate.

[0007] The utility model has the following beneficial effects:

[0008] The utility model discloses the node form of the L-shaped notch and the lap joint reinforcing steel bar at the notch between the prefabricated floor of the box, and reliable connection is formed between the two prefabricated floors and the MIC box through the post-cast concrete at the notch, so that the structure has good integrity and superior seismic performance. The prefabricated floor is all completed in the factory. The construction site is assembled through the reliable connection mode, and the construction of the whole project can be completed, and high integration and efficient construction are realized. BRIEF DESCRIPTION OF DRAWINGS

[0009] Other features, objects and advantages of the utility model will become more apparent through reading the detailed description of the non-restrictive embodiments with reference to the following drawings:

[0010] Figure 1 It is a plane structure schematic view of the prefabricated assembly type notch plate connecting node based on the concrete modular integrated building provided by the utility model.

[0011] Figure 2 It is a three-dimensional structure schematic view of the prefabricated assembly type notch plate connecting node based on the concrete modular integrated building before splicing provided by the utility model.

[0012] Figure 3 It is a three-dimensional structure schematic view of the prefabricated assembly type notch plate connecting node based on the concrete modular integrated building after splicing and before post-cast provided by the utility model.

[0013] Figure 4 It is a three-dimensional structure schematic view of the prefabricated assembly type notch plate connecting node based on the concrete modular integrated building after the L-shaped notch post-cast provided by the utility model.

[0014] In the drawings, 1 is prefabricated floor one, 2 is prefabricated floor two, 3 is connecting reinforcing steel bar one, 4 is connecting reinforcing steel bar two, 5 is connecting reinforcing steel bar three, and 6 is L-shaped notch. DETAILED DESCRIPTION

[0015] The utility model will be described in detail in combination with the drawings and specific embodiments, and the illustrative embodiments and the description of the utility model are used to explain the utility model, but not as the limitation of the utility model.

[0016] It should be noted that all directional indicators (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0017] In this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this utility model.

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] like Figures 1 to 4 As shown, a prefabricated assembled slotted slab connection node based on modular integrated concrete building includes a prefabricated floor slab 1 and a prefabricated floor slab 2, both with slots. The transverse main reinforcement of the prefabricated floor slab 1 extends to the left side to form a connecting reinforcement 3. The stirrups at the slots form connecting reinforcement 4. The cross-section of the prefabricated floor slab 2 is L-shaped. The right end of the transverse main reinforcement of the prefabricated floor slab 2 extends to the right side to form a connecting reinforcement 3. The splicing position between the prefabricated floor slab 1 and the prefabricated floor slab 2 is a reserved L-shaped slot 6. By post-casting the L-shaped slot 6, the prefabricated floor slab 1 and the prefabricated floor slab 2 are mutually fixed, so that the structure has good integrity and seismic performance. After the two precast floor slabs are spliced ​​together, the L-shaped groove 6 is then poured. By lapping the connecting steel bars and pouring the groove, the two precast floor slabs are mutually fixed. The mechanical properties of this precast slab splicing node are excellent, which can improve the overall connection and seismic performance of the precast box. It has a high prefabrication rate, which can significantly reduce the amount of steel bar binding work on the construction site and shorten the construction period.

[0021] Specifically, in the embodiment, the connecting steel bars 3 of the prefabricated floor slab 1 and the connecting steel bars 5 of the prefabricated floor slab 2 are divided into two rows; the connecting steel bars 5 of the upper row extend out of the recess of the prefabricated floor slab 2 and are connected with the connecting steel bars 4 of the upper row of the prefabricated floor slab 1 and the connecting steel bars 4 of the L-shaped notch 6; the bent connecting steel bars 5 of the lower row extend out of the convex part of the prefabricated floor slab 2 and are connected with the bent connecting steel bars 3 of the lower row of the prefabricated floor slab 1, so that the degree of mutual adhesion of the prefabricated floor slabs is improved.

[0022] Specifically, in the embodiment, the top surface of the prefabricated floor slab 1 is flush with the top surface of the prefabricated floor slab 2; the joint between the prefabricated floor slab 1 and the prefabricated floor slab 2 is located at the position of the bending moment reversal point of the floor, so that the stress at the joint is reduced.

[0023] Embodiment:

[0024] As shown in Figure 1 , a prefabricated slot plate connecting joint based on a concrete modular integrated building comprises a prefabricated floor slab 1 and a prefabricated floor slab 2.

[0025] As shown in Figure 2 , the transverse main reinforcement of the prefabricated floor slab 1 extends out of the left side to form a connecting steel bar 3, and the hoop reinforcement at the notch forms a connecting steel bar 4.

[0026] The prefabricated floor slab 2 has an L-shaped cross section, and the right end of the transverse main reinforcement of the prefabricated floor slab 2 extends out of the right side to form a connecting steel bar 5.

[0027] The upper row of connecting steel bars 5 of the prefabricated floor slab 2 extends out of the recess and is connected with the upper row of connecting steel bars 3 of the prefabricated floor slab 1 and the connecting steel bars 4 at the notch; the lower row of bent connecting steel bars 5 of the prefabricated floor slab 2 extends out of the convex part and is connected with the lower row of bent connecting steel bars 3 of the prefabricated floor slab 1.

[0028] As shown in Figure 3 , an L-shaped notch 6 is arranged between the prefabricated floor slab 1 and the prefabricated floor slab 2, and the top surface of the prefabricated floor slab 1 is flush with the top surface of the prefabricated floor slab 2.

[0029] As shown in Figure 4 , the L-shaped notch 6 is post-poured, and the prefabricated floor slab 1 and the prefabricated floor slab 2 are reliably connected.

[0030] The utility model discloses a node form of reserving L-shaped notch 6 between prefabricated floor of box and lap jointing connecting reinforcement at the notch, and through the post-cast concrete at the notch, reliable connection is formed between two prefabricated floors and MIC box, and the structure has good integrity and superior anti-seismic performance. The prefabricated floor is all completed in the factory. The construction site is assembled through the reliable connection mode, and the construction of the whole project can be completed, and high integration and efficient construction are realized.

[0031] The above detailed introduction is provided for the technical scheme of the utility model embodiment, and the principle and implementation mode of the utility model embodiment are described by applying specific examples; the above embodiment is only applicable to helping understanding the principle of the utility model embodiment; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range of the utility model embodiment will have changes, and the above is not understood as the limitation of the utility model.

Claims

1. A prefabricated fabricated notched slab connection node based on modular integrated construction of concrete, characterized by: The application relates to a prefabricated floor slab, which comprises prefabricated floor slab one (1) and prefabricated floor slab two (2); the left side of the horizontal main reinforcement of the prefabricated floor slab one (1) is extended to the left end to form connecting reinforcement one (3); the hoop reinforcement at the notch forms connecting reinforcement two (4); the cross section of the prefabricated floor slab two (2) is L-shaped; the right end of the horizontal main reinforcement of the prefabricated floor slab two (2) is extended to the right side to form connecting reinforcement three (5); the joint position of the prefabricated floor slab one and the prefabricated floor slab two is a reserved L-shaped notch (6); the mutual consolidation of the prefabricated floor slab one and the prefabricated floor slab two is realized by pouring the L-shaped notch.

2. The prefabricated notched slab connection node of the modular integrated building based on concrete according to claim 1, characterized in that: The connecting reinforcement one (3) of the prefabricated floor slab one (1) and the connecting reinforcement three (5) of the prefabricated floor slab two (2) are divided into two rows; the connecting reinforcement three (5) of the upper row is extended out of the recess of the prefabricated floor slab two (2) and is overlapped with the connecting reinforcement one (3) of the upper row of the prefabricated floor slab one (1) and the connecting reinforcement two (4) at the L-shaped notch (6); the bent connecting reinforcement three (5) of the lower row is extended out of the convex part of the prefabricated floor slab two (2) and is overlapped with the bent connecting reinforcement one (3) of the lower row of the prefabricated floor slab one (1).

3. The prefabricated notched slab connection node of the modular integrated building based on concrete according to claim 1, characterized in that: The top surface of the prefabricated floor slab one (1) is flush with the top surface of the prefabricated floor slab two (2); the joint of the prefabricated floor slab one (1) and the prefabricated floor slab two (2) is the position of the bending moment bending point of the plate stress.

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