CN218374381U

CN218374381U - Novel multi-section continuous prefabricated superposed secondary beam connected by steel plate tongue-and-groove

Info

Publication number: CN218374381U
Application number: CN202222108222.8U
Authority: CN
Inventors: 黄泽; 李家豪; 王黎; 韦宏; 黄奕斌
Original assignee: Architectural Design Research Institute Of Scutco Ltd
Current assignee: Architectural Design Research Institute Of Scutco Ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2023-01-24
Anticipated expiration: 2032-08-11

Abstract

The utility model discloses a novel multistage prefabricated coincide secondary beam in succession that steel sheet tongue-and-groove is connected can be used to the prefabricated integration of secondary beam in succession, belongs to assembled concrete structure field. The adjacent segmented secondary beams are connected through steel plate tongues and grooves, the steel plate tongues and grooves comprise more than two steel plates which are arranged in parallel and have downward openings, steel bars are horizontally welded between the parallel steel plates, studs are horizontally welded on the outer side surfaces of embedded steel plates at the front end and the rear end of each steel plate, tongue and groove reinforcing ribs are welded on the tops of the embedded steel plates, longitudinal ribs are horizontally laid on cast-in-place sections at the tops of the segmented secondary beams, the embedded steel plates and the longitudinal ribs are surrounded by stirrups, and the left sides and the right sides of the tongue and groove reinforcing ribs are welded with the stirrups. After the subsection secondary beam is prefabricated, the subsection secondary beam is constructed, hoisted and placed on the main beam of the structure, and a post-cast concrete superposed layer is formed to form a continuous prefabricated superposed secondary beam. The utility model discloses production and conveying efficiency are high, the construction location is simple and convenient, the cost is with low costs.

Description

Novel multi-section continuous prefabricated superposed secondary beam connected by steel plate tongue-and-groove

Technical Field

The utility model relates to an assembled concrete structure field especially relates to a novel multistage continuous prefabrication coincide secondary beam that steel sheet tongue-and-groove is connected.

Background

The prefabricated superposed secondary beam is a secondary beam formed by pouring and tamping concrete twice, and is made into a prefabricated secondary beam in a prefabricated field for the first time; and the second time is carried out on the construction site, and after the hoisting and the placement of the prefabricated secondary beam are finished, the concrete on the upper part is poured and tamped to connect the prefabricated secondary beam into a whole.

At present, with the continuous development of assembly type buildings, the application of prefabricated components is more and more extensive, but the prefabricated components usually face challenges in production, transportation links and assembly construction links, and the prefabricated superposed secondary beam is no exception. As one of important prefabricated components for transmitting vertical loads, the production and transportation efficiency and construction hoisting positioning of the prefabricated superposed secondary beam are important. The traditional prefabricated superposed secondary beam is prefabricated by a single body, and the production and transportation efficiency is lower. In addition, prefabricated coincide secondary beam adopts post-cast concrete to be connected with prefabricated coincide main beam usually to it is comparatively complicated to make the hoist and mount location of prefabricated coincide secondary beam and support to set up, and the construction degree of difficulty is high.

Disclosure of Invention

The utility model provides a novel multistage prefabricated coincide secondary beam in succession that steel sheet tongue-and-groove is connected, its production and conveying efficiency are high, transport the job site after, the hoist and mount location is simple and convenient, and the cost is with low costs moreover.

In order to realize the purpose of the invention, the utility model adopts the technical scheme that:

the concrete beam comprises segmented secondary beams, adjacent segmented secondary beams are connected through steel plate tongues and grooves, the steel plate tongues and grooves comprise more than two steel plates which are arranged in parallel and have downward openings, steel bars are horizontally welded between the parallel steel plates, studs are horizontally welded on the outer side faces of embedded steel plates at the front end and the rear end of each steel plate, tongue and groove reinforcing ribs are welded at the tops of the embedded steel plates, longitudinal ribs are horizontally laid on cast-in-place sections at the tops of the segmented secondary beams, the embedded steel plates and the longitudinal ribs are surrounded by stirrups, and the left sides and the right sides of the tongue and groove reinforcing ribs are welded together with the stirrups. Preferably, the span of the segmented secondary beam is 2-4m.

The top of the embedded steel plate is welded with more than four tongue-and-groove reinforcing ribs, the tongue-and-groove reinforcing ribs are in an inverted U shape, the inner side of the top is welded and fixed with the top surface of the embedded steel plate, the left side and the right side of the top are welded and fixed with stirrups, and the number of the stirrups is consistent with that of the tongue-and-groove reinforcing ribs.

The quantity of the steel bars and the number of the studs are even numbers, the studs on the embedded steel plate correspond to the welding positions of the steel bars one by one, or the steel bars are arranged at the centroid of the stud group outside the embedded steel plate. The "centroid" is a construction industry term and refers to the center (middle) of the upper and lower rows of pegs.

The utility model discloses has following technological effect:

1) The continuous segmented secondary beam is prefabricated and molded at one time, so that the number of the component blocks is reduced, and the production and transportation efficiency of the prefabricated superposed secondary beam is improved;

2) The steel plate tongue-and-groove can be connected by laying, the construction and positioning are simple and convenient, and the problem that the traditional prefabricated secondary beam is complex in hoisting, positioning and supporting and erecting is solved;

3) The stress is reliable, and the steel plate tongue-and-groove can effectively improve the shearing resistance of the node.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of a steel plate tongue-and-groove connection node.

Fig. 3 is a schematic view of a steel plate construction.

Fig. 4 is a plan view of the steel plate.

Fig. 5 is a side view of the steel plate.

The attached drawings are as follows: 1. a segmented secondary beam; 2. a steel plate tongue-and-groove; 2a, a steel plate; 2a1, embedding a steel plate; 2a2, overhanging steel plate; 2b, round steel bars; 2c, a stud; 3. longitudinal ribs; 4. hooping; 5. tongue-and-groove strengthening ribs.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate the orientation or positional relationship, are used in the present invention as indicated based on the orientation or positional relationship shown in the drawings, and are used only for convenience of description and for simplification of description, and do not indicate or imply that the components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1 to 5, the present embodiment includes segmented secondary beams 1, the span of the segmented secondary beams 1 is small, preferably 2 to 4m, adjacent segmented secondary beams 1 are connected by steel plate grooves 2, each steel plate groove 2 mainly includes two steel plates 2a, two circular steel bars 2b, and a stud 2c, where the number of the steel plates 2a is greater than or equal to two, in the present embodiment, the number of the steel plates 2a is two, and a plurality of circular steel bars 2b are horizontally welded between two steel plates 2a which are parallel to each other in the vertical direction and have downward openings. The steel plate 2a can be divided into an embedded steel plate 2a1 and an extended steel plate 2a2 according to the position, the embedded steel plate 2a1 is embedded at the end part of the subsection secondary beam 1, and the extended steel plate 2a2 is mainly used for connecting the subsection secondary beam 1 and facilitating construction, hoisting and positioning. A plurality of studs 2c are horizontally welded on the outer side surfaces of the embedded steel plates 2a1 at the front end and the rear end of the steel plate 2a and are used for anchoring and force transmission of the steel plate tongue-and-groove 2. The plurality of the studs 2c are arranged in an upper row and a lower row in a welding mode, the number of the round steel bars 2b and the number of the studs 2c are even, the steel bars 2b are arranged at the centroid of the stud group (the middle position of the upper row of studs 2c and the lower row of studs 2 c) on the outer side of the embedded steel plate 2a1, and the steel plate rabbet 2 is economical in manufacturing cost. The stud 2c on the embedded steel plate 2a1 can be in one-to-one correspondence with the welding position of the steel bar 2b, and the safety can be improved by the arrangement.

Four tongue-and-groove reinforcing ribs 5 are welded on the top of the embedded steel plate 2a1, the tongue-and-groove reinforcing ribs 5 are evenly arranged at the end portion of the segmented secondary beam 1 along the length direction of the embedded steel plate 2a1 and used for reinforcing the tongue-and-groove end portion of the segmented secondary beam 1, the tongue-and-groove reinforcing ribs 5 are in an inverted U shape, the inner side of the top is fixedly welded with the top surface of the embedded steel plate 2a1, the left side and the right side of the top are fixedly welded with the stirrups 4, and the number of the stirrups 4 is four consistent with the number of the tongue-and-groove reinforcing ribs 5.

The longitudinal ribs 3 are horizontally laid on the cast-in-place sections at the tops of the segmented secondary beams 1, the embedded steel plates 2a1 and the longitudinal ribs 3 are enclosed by the stirrups 4, and the left side and the right side of the tongue-and-groove reinforcing ribs 5 are welded with the stirrups 4.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a novel multistage continuous prefabrication coincide secondary beam that steel sheet tongue-and-groove is connected, includes segmentation secondary beam, its characterized in that: the adjacent segmented secondary beams are connected through steel plate tongues and grooves, the steel plate tongues and grooves comprise more than two steel plates which are arranged in parallel and have downward openings, steel bars are horizontally welded between the parallel steel plates, studs are horizontally welded on the outer side surfaces of embedded steel plates at the front end and the rear end of each steel plate, tongue and groove reinforcing ribs are welded on the tops of the embedded steel plates, longitudinal ribs are horizontally laid on cast-in-place sections at the tops of the segmented secondary beams, the embedded steel plates and the longitudinal ribs are surrounded by stirrups, and the left sides and the right sides of the tongue and groove reinforcing ribs are welded with the stirrups.

2. The novel multi-section continuous prefabrication and superposition secondary beam connected by the steel plate tongue-and-groove according to claim 1, is characterized in that: the top of the embedded steel plate is welded with more than four tongue-and-groove reinforcing ribs, the tongue-and-groove reinforcing ribs are in an inverted U shape, the inner side of the top is welded and fixed with the top surface of the embedded steel plate, the left side and the right side of the top are welded and fixed with stirrups, and the number of the stirrups is consistent with that of the tongue-and-groove reinforcing ribs.

3. The novel multi-section continuous prefabrication and superposition secondary beam connected by the steel plate tongue-and-groove according to claim 1, is characterized in that: the quantity of the steel bars and the number of the studs are even numbers, the studs on the embedded steel plate correspond to the welding positions of the steel bars one by one, or the steel bars are arranged at the centroid of the stud group outside the embedded steel plate.

4. The novel multi-section continuous prefabrication and superposition secondary beam connected by the steel plate tongue-and-groove according to claim 1, is characterized in that: the span of the segmented secondary beam is 2-4m.