CN220768560U - Just connect single T integrated precast beam board structure - Google Patents

Abstract

The utility model discloses a rigid connection type single T integrated precast beam plate structure, which comprises a beam rib main body and two cantilever plates; the beam rib main body and the cantilever plates are made of concrete through pouring in advance; the beam rib main body is obliquely and outwards connected with the cantilever plates along the two sides of the long side direction, and the top surfaces of the cantilever plates are flush with the top surfaces of the beam rib main body; the beam rib comprises a beam rib main body, wherein the inside of the beam rib main body is provided with a section steel along the long side direction to form a support, and a plurality of beam stirrups are bundled outside the section steel along the long side direction. The rigid connection type single T integrated precast beam slab structure enhances the overall rigidity, improves the structural stability and improves the connection quality with an upper structure. The structure combines the advantages of prefabrication, steel structure and the like, and provides reliable novel structure selection for industrialized prefabrication and assembly construction of building structures.

Description

Just connect single T integrated precast beam board structure

Technical Field

The utility model belongs to the technical field of concrete precast structures, and particularly relates to a rigid connection type single T integrated precast beam plate structure.

Background

The double T-plate structure is taken as a novel integrated plate girder structure form, and is emerging and developed in the building industry from the 90 th century. The precast concrete slab consists of a whole precast concrete slab with double T-shaped cross sections, and prestressed reinforcement is arranged in the slab body, so that the dual functions of the slab and the beam can be exerted. The structure has high integration level, light dead weight and high bending rigidity, is particularly suitable for multi-layer or high-rise buildings with larger spans, can effectively reduce the dead weight of the structure, the material consumption and the construction amount, and is regarded as one of important directions of the lightweight development of the building structure. In actual engineering, the double T-shaped plates are prefabricated as floors in layers, and then are positioned through a hoisting system, so that a bearing structure system of a building can be formed rapidly.

However, as this new structure is applied in more projects, problems and disadvantages are also exposed. Firstly, the vertical ribs of the double T plates do not form a complete beam structure, and because members such as stirrups are not arranged in the vertical ribs, the vertical ribs only have the characteristics of a unidirectional stressed plate beam, and the torsional rigidity is weak. And secondly, the prestressed tendons used by the double T plates belong to the popular products, and domestic manufacturers are few, so that the large-scale popularization is not facilitated. In addition, as shown in fig. 1, the double T-plate 200 needs to be lifted and positioned by the lugs 110 of the main beam 100, and this hinge manner can cause deformation superposition and easily cause damage. Furthermore, the self weight of the large-span double T-shaped plates is large, the requirements on the tower crane and a construction system are high, and the construction difficulty is increased. Finally, the overlapping joint of the double T plate and the main body structure is not provided with elevation control points, and an additional leveling layer is needed for complement.

Therefore, the current double-T plate structure has the problems of poor rib effect, limited prestress rib supply, serious damage to a hinged part, high construction hoisting difficulty, improper treatment of a superposed layer and the like, and the problems not only can reduce the overall rigidity and bearing capacity of the structure, but also are not beneficial to popularization and application.

Disclosure of Invention

In view of the defects in the prior art, the application provides a rigid connection type single T integrated precast beam plate structure, which is used for solving the problems of poor rib effect, limited prestressed rib supply, serious damage of a hinging part, high construction hoisting difficulty and the like in the prior art.

To achieve the above and other related objects, the present application discloses a rigid-connection single-T integrated precast beam panel structure, including a beam rib main body and two pickers; the beam rib main body and the cantilever plates are made of concrete through pouring in advance; the beam rib main body is obliquely and outwards connected with the cantilever plates along the two sides of the long side direction, and the top surfaces of the cantilever plates are flush with the top surfaces of the beam rib main body; the beam rib comprises a beam rib main body, wherein the inside of the beam rib main body is provided with a section steel along the long side direction to form a support, and a plurality of beam stirrups are bundled outside the section steel along the long side direction.

In some embodiments provided by the application, the non-prestressed reinforcement is further arranged between the upper end and the lower end of the section steel and the beam stirrup, and the non-prestressed reinforcement is arranged along the long side direction.

In certain embodiments provided herein, the non-prestressed reinforcement extends outwardly from both ends of the long side of the rib body.

In certain embodiments provided herein, the system further comprises a gusset bar; the central bottom of the cantilever plate transverse rib is lapped on the upper end face of the beam stirrup and extends to two sides along the short side direction; and after concrete is poured on the transverse ribs of the cantilever plates, the beam rib main body and the top surfaces of the cantilever plates are formed.

In certain embodiments provided herein, further comprising: at least one elevation reference; at least one elevation reference part is arranged on the top surface of the cantilever plate and/or the beam rib main body; the top ends of the elevation reference parts are positioned at the same horizontal height.

In certain embodiments provided herein, the rib body and the gusset are integrally cast.

The utility model has the beneficial effects that:

the structure fully embodies the design concept of the integrated beam plate, integrates the beam and the plate into a single body, is internally provided with beam members such as profile steel, stirrups and the like, has clear structural concept and accords with the conventional structural design habit. The steel bars used in the beam rib main body adopt common non-prestressed bars, so that the steel bar has a plurality of manufacturers and sufficient productivity, is convenient for large-scale popularization and application, and is favorable for the marketization of the structural form. The structure of the utility model is rigidly connected with the main beam, and the hinge lug is not required to be arranged, so that the deformation influence in the construction and use processes can be reduced. Deformation in the construction process can be recovered after the use, and the structural performance is better and more reliable. The dead weight of the single T-shaped integrated beam plate is obviously reduced, and the dead weight of the single T-shaped integrated beam plate is about half of that of the double T-shaped integrated beam plate, so that the requirement on a construction hoisting system is lower, the construction difficulty can be reduced, and the cost investment is reduced. The rigid connection type single T integrated precast beam slab structure is provided with the elevation reference part, and the upper structure can be directly installed by using the same without additional leveling layer construction operation, so that the structural load is reduced, and the effective use space inside the building is increased.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a prior art hinge of a main beam and a double T-half.

Fig. 2 is a longitudinal cross-sectional view of a single T integrated precast beam panel structure of the instant application.

Fig. 3 is a perspective view of a rigid-connection type single-T integrated precast beam slab structure without ribs.

Fig. 4 is a schematic side view of a steel bar-reinforced single-T integrated precast beam slab structure.

Fig. 5 is a schematic diagram of rigid connection of the reinforcement-out single-T integrated precast beam panel structure with the main beam.

Reference numerals illustrate:

the beam rib comprises a 1-beam rib main body, a 2-cantilever plate, 3-section steel, 4-beam stirrups, 5-non-prestressed steel bars, 6-cantilever plate transverse bars, 7-elevation reference parts, 100-main beams, 110-cantilever lugs and 200-double T plates.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "coupled," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly, indirectly through intermediaries, or in communication with each other. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Exemplary embodiments of the utility model

As shown in fig. 2 to 4, the present embodiment discloses a rigid connection type single T integrated precast beam slab structure, which includes a beam rib main body 1 and two cantilever slabs 2; the beam rib main body 1 and the cantilever plates 2 are made of concrete by pouring in advance; the beam rib main body 1 is connected with the cantilever plates 2 outwards in an inclined mode along the two sides of the long side direction, and the top surfaces of the cantilever plates 2 are flush with the top surface of the beam rib main body 1.

In any of the embodiments provided herein, the beam rib body 1 is internally provided with a section steel 3 along the longitudinal direction to form a support, and the section steel 3 is used to increase the rigidity of the beam rib body 1. The steel section 3 is externally bound with a plurality of beam stirrups 4 along the long side direction, and the stirrups are typical marks of beam structures and are special designs different from double T plate structures in the scheme of the application.

In any embodiment provided by the application, non-prestressed reinforcement 5 is further arranged between the upper end and the lower end of the section steel 3 and the beam stirrup 4, and the non-prestressed reinforcement 5 is arranged along the long side direction. The non-prestressed reinforcement 5 extends outwards from both ends of the long side of the beam rib main body 1. In the precast beam slab structure of the present application, the non-prestressed reinforcement 5 is only disposed in the beam rib main body 1 and extends out from both ends of the beam rib main body 1, for forming a rigid connection with the main beam 100, and plays a role of a beam. And, the non-prestressed reinforcement 5 can be more selective than prestressed reinforcement, do benefit to technical popularization.

In any embodiment provided by the application, the rigid connection type single T integrated precast beam slab structure further comprises a cantilever slab transverse rib 6; the central bottom of the cantilever plate transverse rib 6 is lapped on the upper end face of the beam stirrup 4 and extends to two sides along the short side direction; and concrete is poured on the cantilever plate transverse ribs 6 to form the beam rib main body 1 and the top surface of the cantilever plate 2.

In any of the embodiments provided herein, the just-joined single-T integrated precast beam panel structure further includes: at least one elevation reference 7; at least one elevation reference part 7 is arranged on the top surface of the cantilever plate 2 and/or the beam rib main body 1; the top ends of the elevation reference parts 7 are positioned at the same level. The top end of each elevation reference part 7 can be used as a reference surface of a building leveling layer of a superposed layer arranged on the precast beam plate structure, so that an additional building leveling layer is not needed, thereby reducing the structural load of the rigid connection type single-T integrated precast beam plate structure and increasing the building clear height.

In any of the embodiments provided herein, the rib body 1 and the gusset 2 are integrally cast.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The embodiment discloses just connect single T integrated precast beam board structure, and this structure has realized the promotion of structural rigidity, construction reliability's reinforcing to and with the rigid linking of major structure through reasonable design.

Specifically, referring to fig. 2 to 3, the rigid single T integrated precast beam panel structure includes a beam rib main body 1 and a cantilever panel 2 at both sides. The beam rib main body 1 and the cantilever plates 2 are prefabricated and formed by concrete. The beam rib main body 1 is of a middle rib structure which linearly extends, two sides of the beam rib main body incline at a certain angle and are outwards connected with the cantilever plates 2 at two sides, so that the rigid connection type single T integrally forms a T-shaped section. The top surfaces of the beam rib main body 1 and the cantilever plate 2 are flush and arranged on the same horizontal plane.

Referring specifically to fig. 4 and 5, in order to enhance the overall rigidity of the rib main body 1, a section steel 3 is provided inside the rib main body 1 along the longitudinal direction thereof, and the section steel 3 plays a role of core support. The surface of the section steel 3 is also bound with a plurality of beam stirrups 4 along the long side direction, which is a typical feature of beam structures, unlike the design without stirrups in the conventional double-T plate structure, thereby enhancing torsional rigidity. Between the upper and lower ends of the section steel 3 and the stirrups, a plurality of longitudinal non-prestressed steel bars 5 are further arranged, and the non-prestressed steel bars 5 extend outwards from the two ends of the beam rib main body 1 and are used for forming rigid connection with the main beam 100 so as to reliably transfer load. Compared with prestressed tendons, the non-prestressed tendons have wider selection range and are more beneficial to popularization and application.

In addition, referring to fig. 2 specifically, the rigid-connection single-T integrated precast beam slab structure further includes cantilever slab transverse ribs 6, wherein the bottom surfaces of the middle parts of the cantilever slab transverse ribs 6 are fixed at the upper ends of the beam stirrups 4 in a rolling manner, extend from the middle parts to two sides, and form a top slab structure of the beam rib main body 1 and the cantilever slabs 2 at two sides after concrete pouring.

Referring specifically to fig. 3, in order to facilitate the installation and docking of the superstructure, the rigid-connection type single-T integrated precast beam slab structure is further provided with an elevation reference part 7. The elevation reference parts 7 are respectively arranged on the top surfaces of the cantilever plates 2 and/or the beam rib main bodies 1, and the top surfaces of the elevation reference parts 7 are kept at the same horizontal height. Thus, the upper structure can directly control the pouring thickness of the superposed layer by referring to the top surface of the elevation reference part 7, thereby avoiding the construction of an extra leveling layer, not only reducing the self weight of the structure, but also improving the net height of the interior of the building.

Through the design such as shaped steel 3 in the beam rib main part 1 supports, beam stirrup 4 retrains, the connection of ram transverse bar 6, elevation reference portion 7 location, this just connect single T integrated precast beam slab structure has strengthened whole rigidity, has promoted structural stability, has also improved the linking quality with superstructure. The structure combines the advantages of prefabrication, steel structure and the like, and provides reliable novel structure selection for industrialized prefabrication and assembly construction of building structures. It is believed that with the continuous optimization of the structural design scheme, the application prospect is wide.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather to cover all modifications, adaptations, and alternatives falling within the spirit and scope of the present utility model.

Claims (6)

1. The rigid connection type single T integrated precast beam slab structure is characterized by comprising a beam rib main body and two cantilever slabs; the beam rib main body and the cantilever plates are made of concrete through pouring in advance; the beam rib main body is obliquely and outwards connected with the cantilever plates along the two sides of the long side direction, and the top surfaces of the cantilever plates are flush with the top surfaces of the beam rib main body; the beam rib comprises a beam rib main body, wherein the inside of the beam rib main body is provided with a section steel along the long side direction to form a support, and a plurality of beam stirrups are bundled outside the section steel along the long side direction.

2. The rigid connection type single-T integrated precast beam slab structure according to claim 1, wherein non-prestressed reinforcement is further arranged between the upper end and the lower end of the section steel and the beam stirrup, and the non-prestressed reinforcement is arranged along the long side direction.

3. The rigid single T integrated precast beam panel structure of claim 2, wherein the non-prestressed reinforcement extends outwardly from both ends of the long side of the beam rib main body.

4. The rigid single-T integrated precast beam panel structure of claim 1, further comprising a gusset bar; the central bottom of the cantilever plate transverse rib is lapped on the upper end face of the beam stirrup and extends to two sides along the short side direction; and after concrete is poured on the transverse ribs of the cantilever plates, the beam rib main body and the top surfaces of the cantilever plates are formed.

5. The rigid single T integrated precast beam panel structure of claim 1, further comprising: at least one elevation reference; at least one elevation reference part is arranged on the top surface of the cantilever plate and/or the beam rib main body; the top ends of the elevation reference parts are positioned at the same horizontal height.

6. The rigid single T integrally precast beam panel structure of claim 1, wherein said rib body and said gusset are integrally cast.