CN221143274U - Beam structure and building structure - Google Patents

Abstract

The utility model relates to the technical field of building structures, and discloses a beam structure and a building structure, wherein the beam structure further comprises: a lower half beam, wherein a lower accommodating cavity suitable for pouring concrete is arranged in the lower half beam; the upper half beam is arranged at the upper end of the lower half beam, and an upper accommodating cavity which is suitable for being communicated with the lower accommodating cavity and is used for pouring concrete is arranged in the upper half beam; the utility model solves the problems that when the upper half beam is hoisted to the lower half beam, the additional stirrup interferes with the original structure in the upper half beam, so that the construction efficiency is low and even the installation cannot be performed.

Description

Beam structure and building structure

Technical Field

The utility model relates to the technical field of building structures, in particular to a beam structure and a building structure.

Background

The beam structure is an important component of a building structure, wherein the upturned beam is one of the building beam structures, and refers to a beam body structure which is Liang Dingbiao higher than the elevation of the top of the floor slab, compared with a common beam, the upturned beam has the advantages of higher bearing capacity and less occupation of the layer height, and the upturned beam is generally combined with the common beam body into a whole to form an integral beam structure.

In the related art, the beam structure with the upturned beam comprises an upper half part and a lower half part, wherein the upper half part and the lower half part are connected through additional stirrups connected end to end and concrete poured in situ to form an integral beam structure. During practical construction, the additional stirrup is placed in the lower half part, concrete is poured into the lower half part at one time, after the concrete poured at one time is solidified, the upper half part is hoisted on the lower half part, the upper half part of the additional stirrup is inserted into the upper half part, and finally, the concrete is poured for the second time, so that the upper half part and the lower half part form an integral beam structure.

However, in the above related art, since the additional stirrups are in the form of square rings connected end to end, in the process of hoisting the upper half, the additional stirrups are very easy to interfere with the original reinforcing steel bar structure in the upper half, so that constructors need to adjust the angles and positions of the additional stirrups one by one, the installation efficiency is low, and even the upper half cannot be installed on the lower half under the condition that the interference is serious due to the construction errors.

Disclosure of utility model

In view of the above, the utility model provides a beam structure and a building structure, which are used for solving the problems that when an upper half beam is hoisted to a lower half beam, an additional stirrup interferes with an original structure in the upper half beam, so that the construction efficiency is low and even the installation is impossible.

In a first aspect, the present utility model provides a beam structure comprising a floor slab; the lower half beam is internally provided with a lower accommodating cavity suitable for pouring concrete; the upper half beam is arranged at the upper end of the lower half beam, and an upper accommodating cavity which is suitable for being communicated with the lower accommodating cavity and pouring concrete is arranged in the upper half beam; the column-shaped connecting ribs are vertically arranged, one end of each column-shaped connecting rib extends into the lower accommodating cavity, the other end of each column-shaped connecting rib extends into the upper accommodating cavity, the column-shaped connecting ribs are suitable for improving the shearing resistance of the beam body, and the column-shaped connecting ribs are distributed at intervals along the length direction of the lower half beam.

The beneficial effects are that: because the columnar connecting ribs are adopted to form the steel bar structure for connecting the upper half beam and the lower half beam, when the upper half beam is hoisted, because the columnar connecting ribs are simple in structure, occupied space is small and concentrated, interference with the steel bar structure and other structures inside the upper half beam is difficult to occur, constructors can slightly adjust the orientation of the columnar connecting ribs or slightly adjust the structure position inside the upper half beam when interference occurs, avoidance of the structure can be achieved, hoisting of the upper half beam is completed, construction time is effectively saved, and construction period is shortened.

In an alternative embodiment, both ends of the cylindrical connecting rib are provided with anchoring structures.

The beneficial effects are that: the connection strength between the cylindrical connecting ribs and the upper half beam and the lower half beam is enhanced through the anchoring means, and the shearing resistance of the whole upturning beam structure is greatly improved, so that the building structure is reliable and stable.

In an optional embodiment, the lower half beam comprises a plurality of lower beam stirrups, a first precast slab and a second precast slab which are oppositely arranged, wherein the lower beam stirrups are square ring-shaped, two opposite sides of each lower beam stirrup penetrate into the first precast slab and the second precast slab respectively, a plurality of lower beam stirrups are distributed at intervals along the length direction of the lower half beam, and a lower accommodating cavity is formed between the first precast slab and the second precast slab.

The beneficial effects are that: the first prefabricated plate and the second prefabricated plate are oppositely arranged to form a lower accommodating cavity, so that the cylindrical connecting ribs are convenient to install and concrete is poured, and the plurality of lower beam stirrups are used as a part of the reinforcing steel bar structure in the lower half beam to improve the shearing resistance of the lower half beam and restrict the concrete.

In an alternative embodiment, the lower half beam further includes a bottom plate, and both sides of the bottom plate are connected to the first prefabricated panel and the second prefabricated panel, respectively.

The beneficial effects are that: through the setting of the bottom plate that connects into an organic whole with first prefabricated plate and second prefabricated plate, need not to additionally set up the mould bottom plate when the concrete is pour to the job site, further simplified the construction step, promoted construction speed.

In an alternative embodiment, a plurality of lower beam steel bars are arranged in the lower half beam along the length direction of the lower half beam, and the plurality of lower beam steel bars are all positioned on the inner side of the lower beam stirrup and are in butt joint with the lower beam stirrup.

The beneficial effects are that: the lower beam steel bars and the lower beam stirrups which are used as a part of the lower half beam inner steel bar structure jointly form a steel bar cage structure, so that the whole torsion resistance, bending resistance and shearing resistance of the lower half beam are improved.

In an alternative embodiment, a plurality of the lower beam steel bars are arranged in a pair mode, lower tie bars are arranged between the lower beam steel bars which are arranged in a part mode of being opposite to each other, and the lower tie bars are suitable for restraining the positions and the shapes of the lower beam steel bars.

The beneficial effects are that: the lower tie bars are arranged between the lower beam steel bars, so that the positions and the shapes of the lower beam steel bars are limited, the structural rigidity of the beam steel bars is enhanced when the beam steel bars are influenced by load to generate deformation trend, the possibility that the steel bar framework is deformed or position-shifted due to heavy load is reduced, and the structural reliability is improved.

In an alternative embodiment, a floor slab is further included, the floor slab being connected to the top end of the first prefabricated panel, or the floor slab being connected to the top end of the second prefabricated panel.

The beneficial effects are that: the floor is connected to the top of the first precast slab or the second precast slab, so that the connection between the floor and the beam body is realized, and the building structure with the upturned beam is formed.

In an optional embodiment, the upper half beam comprises a plurality of upper beam stirrups, and a third precast slab and a fourth precast slab which are oppositely arranged, wherein the upper beam stirrups are square ring-shaped, two opposite sides of each upper beam stirrup penetrate into the third precast slab and the fourth precast slab respectively, a plurality of upper beam stirrups are distributed along the length direction of the upper half beam at intervals, and an upper accommodating cavity is formed between the third precast slab and the fourth precast slab.

The beneficial effects are that: the upper containing cavity is formed between the third precast slab and the fourth precast slab, when in construction, the upper half beam is firstly hoisted to the lower half beam, the cylindrical connecting ribs penetrate from the lower end opening of the upper containing cavity, then concrete slurry is poured from the upper end opening of the upper containing cavity, concrete pouring is achieved, the upper beam stirrups are used as a part of the upper half beam steel bar structure, the strength of the upper half beam is improved, and therefore structural reliability is improved.

In an optional embodiment, be provided with many in the upper beam along the upper beam length direction sets up the upper beam reinforcing bar, many the upper beam reinforcing bar all is located the upper beam stirrup inboard and with upper beam stirrup butt, many the upper beam reinforcing bar is pairwise opposite to setting up, the part sets up relatively be equipped with the tie bar between the upper beam reinforcing bar, the tie bar is suitable for the constraint the position and the shape of upper beam reinforcing bar.

The beneficial effects are that: the upper beam steel bars and the upper beam stirrups jointly form a steel reinforcement cage structure, the shearing resistance and the bending resistance of the upper half beam are improved, concrete is restrained, the tie bars limit the positions and the shapes of the paired upper beam steel bars, and the overall rigidity of the steel reinforcement cage is improved when the upper beam steel bars are subjected to load action to generate deformation trend, so that the structural strength of the upper half beam is further improved.

In a second aspect, the utility model also provides a building structure comprising the beam structure described above.

The beneficial effects are that: firstly, compared with the common beam structure, the beam structure saves the layer height while guaranteeing the strength, thereby improving the indoor space; secondly, because the beam structure is a prefabricated structure, compared with the mode of pouring the beam structure on site, the construction period is greatly shortened; in addition, upward turn over the roof beam structure and adopt the cylindricality connecting rib to connect the upper half roof beam with the lower half roof beam at the scene and pour, the cylindricality connecting rib is difficult to take place the motion with original steel bar structure and other structures in the upper half roof beam to compare in traditional stirrup connected mode, its direction is dodged the adjustment more easily, can further simplify the construction step and promote the efficiency of construction.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of a beam structure according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a beam structure with a floor structure according to an embodiment of the present utility model;

in fig. 3, (a), (b), (c), (D), (e) and (f) are specific forms of an anchoring structure of a beam structure according to an embodiment of the present utility model, where D represents the diameter of the columnar connecting rib and D represents the diameter of the arc of the curved portion of the columnar connecting rib.

Reference numerals illustrate:

100. a floor slab; 200. a lower half beam; 201. a lower accommodating chamber; 202. a first prefabricated panel; 203. a second prefabricated panel; 204. a lower beam stirrup; 205. a lower beam steel bar; 206. a bottom plate; 207. a lower lacing wire; 300. an upper half beam; 301. an upper receiving chamber; 302. a third prefabricated panel; 303. a fourth prefabricated panel; 304. a beam hooping bar is arranged; 305. a girder steel bar is arranged; 306. a lacing wire is arranged; 400. cylindrical connecting ribs; 401. an anchoring structure.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. 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.

An embodiment of the present utility model is described below with reference to fig. 1 to 2.

According to an embodiment of the present utility model, in one aspect, referring to fig. 1, there is provided a beam structure, including a lower half beam 200, wherein a lower receiving cavity 201 adapted for concrete pouring is provided in the lower half beam 200; an upper half beam 300 mounted on the upper end of the lower half beam 200, wherein an upper accommodating cavity 301 adapted to communicate with the lower accommodating cavity 201 and pour concrete is provided in the upper half beam 300; the plurality of column-shaped connecting ribs 400 are vertically arranged, one end of each column-shaped connecting rib 400 extends into the lower accommodating cavity 201, the other end of each column-shaped connecting rib 400 extends into the upper accommodating cavity 301, the column-shaped connecting ribs are suitable for improving the shearing resistance of the beam body, and the plurality of column-shaped connecting ribs 400 are distributed at intervals along the length direction of the lower half beam 200.

Specifically, the beam body further comprises a steel bar structure, and the bending resistance, the shearing resistance, the compression resistance and the like of the beam body are improved through the steel bar structure. The concrete form and position of the steel bar structure are not limited, and the steel bar structure can strengthen the structural strength of the beam body.

The columnar connecting ribs 400 may be equally spaced along the longitudinal direction of the lower half beam 200, or may be unevenly distributed within the tolerance allowed by the calculation and verification of the beam body strength. Each of the cylindrical connection ribs 400 may be provided independently of each other, or two or more of the cylindrical connection ribs 400 may be integrally connected in advance through a connection structure, thereby improving the on-site construction speed. In one example, in the case where the respective cylindrical connection ribs 400 are integrally connected in advance by the connection structures, the respective connection structures are located at the lower half of the cylindrical connection portion and within the lower receiving chamber 201. The specific form of the connection structure may be a structure of steel bars, steel wires, or steel plates welded to the cylindrical connection rib 400.

In addition, the specific shape of the columnar connecting rib 400 is not limited in this embodiment, the columnar connecting rib 400 may be cylindrical, and in some embodiments not shown, the columnar connecting rib 400 may be prismatic, spiral, rod-shaped, bar-shaped, or other shapes, and the shapes of the columnar connecting rib 400 are all within the scope of this embodiment. Meanwhile, the cylindrical connecting rib 400 may be an integral structure, and in some embodiments not shown, the cylindrical connecting rib 400 may also be formed by splicing multiple sections of cylindrical structures, for example, the multiple sections of cylindrical structures are sequentially connected to form the integral cylindrical connecting rib 400 by means of connection modes such as welding, threaded connection, or the columns with different sections of cross-sectional shapes are sequentially connected to form the integral cylindrical connecting rib 400 by means of welding, threaded connection, and the like.

It should be further noted that the dimensions of the columnar connecting rib 400 are different in different beam structures, specifically, the columnar connecting rib 400 with various parameters of diameters, lengths, etc. are within the protection scope of the present embodiment, because the columnar connecting rib 400 is obtained by performing strength calculation and strength check according to the construction requirements.

In this embodiment, because the columnar connecting rib 400 is adopted to form the reinforcing steel bar structure for connecting the upper half beam 300 and the lower half beam 200, when the upper half beam 300 is hoisted, because the columnar connecting rib 400 has a simple structure, occupies a small and concentrated space, is not easy to interfere with the reinforcing steel bar structure and other structures in the upper half beam 300, and when the interference occurs, constructors can slightly adjust the orientation of the columnar connecting rib 400 or slightly adjust the inner structure position of the upper half beam 300, so that the avoidance of the structure can be realized, the hoisting of the upper half beam 300 is completed, the construction time is effectively saved, and the construction period is shortened.

In one embodiment, the lower half beam 200 includes a plurality of lower beam stirrups 204, and a first precast slab 202 and a second precast slab 203 disposed opposite to each other, wherein the lower beam stirrups 204 are square ring-shaped, and two opposite sides of the lower beam stirrups 204 penetrate into the first precast slab 202 and the second precast slab 203 respectively, and the plurality of lower beam stirrups 204 are distributed at intervals along the length direction of the lower half beam 200, and a lower accommodating cavity 201 is formed between the first precast slab 202 and the second precast slab 203.

In this embodiment, the first prefabricated panel 202 and the second prefabricated panel 203 are disposed opposite to each other to form the lower receiving cavity 201, so as to facilitate installation of the cylindrical connection ribs 400 and casting of concrete, and the plurality of lower beam stirrups 204 as a part of the reinforcing structure in the lower beam 200 promote the shear resistance of the lower beam 200 and restrict the concrete.

Referring to fig. 1 and 3, in one embodiment, both ends of the cylindrical connecting rib 400 are provided with an anchoring structure 401.

Specifically, the anchoring structure 401 may be selected from a specific form of the anchoring structure 401 shown in fig. 3 (a) and having a 90 ° hook at the end, shown in fig. 3 (b) and having a 135 ° hook at the end, shown in fig. 3 (c), having one end welded with an anchor bar, shown in fig. 3 (D) and having two ends welded with an anchor bar, shown in fig. 3 (e) and having a perforated plug welded with a steel plate, shown in fig. 3 (f) and having a bolt anchor plate at the end, and the like, and the constructor may select according to the actual construction requirement and the structural strength requirement, wherein D in the figure represents the diameter or the longest cross-sectional dimension of the columnar connecting bar, and D represents the radian diameter of the curved portion of the columnar connecting bar 400. The anchoring structures 401 at both ends of the cylindrical connecting rib 400 may be the same or different, and in one example, both ends of the cylindrical connecting rib 400 are provided with steel plates with holes, so that the ends of the cylindrical connecting rib 400 penetrate into holes of the steel plates and are welded at the holes; in another example, the cylindrical connecting rib 400 is provided with a 90 ° hook at one end and an anchor rib at the other end, the anchor rib being parallel to the ends of the cylindrical connecting rib 400 and welded to the side wall, one of the ends of the anchor rib being flush with the corresponding end of the cylindrical connecting rib 400. The specific form and arrangement of the anchoring structure 401 are within the scope of this embodiment.

In this embodiment, the connection strength between the cylindrical connecting ribs 400 and the upper half beam 300 and the lower half beam 200 is reinforced by the anchoring means, and the shearing resistance of the whole upturned beam structure is greatly improved, so that the building structure is reliable and stable.

Referring to fig. 2, in one embodiment, the lower half-beam 200 further includes a bottom plate 206, and two sides of the bottom plate 206 are respectively connected to the first prefabricated panel 202 and the second prefabricated panel 203.

In this embodiment, by arranging the bottom plate 206 integrally connected with the first precast slab 202 and the second precast slab 203, the mold bottom plate 206 is not required to be additionally arranged when concrete is poured on the construction site, so that the construction steps are further simplified, and the construction speed is improved.

In one embodiment, a plurality of lower beam steel bars 205 are disposed in the lower half beam 200 along the length direction of the lower half beam 200, and the plurality of lower beam steel bars 205 are located inside the lower beam stirrup 204 and are abutted against the lower beam stirrup 204.

In this embodiment, the steel reinforcement cage structure is formed by the lower beam steel reinforcement 205 and the lower beam stirrup 204, which are part of the steel reinforcement structure in the lower half beam 200, so that the overall torsion resistance, bending resistance and shear resistance of the lower half beam 200 are improved.

In one embodiment, the plurality of lower beam steel bars 205 are disposed in pairs, and a lower tie bar 207 is disposed between the lower beam steel bars 205 disposed in parts in pairs, and the lower tie bar 207 is adapted to constrain the position and shape of the lower beam steel bars 205.

In this embodiment, the lower tie bars 207 are disposed between the lower beam steel bars 205, so that the positions and shapes of the lower beam steel bars 205 are limited, and thus the structural rigidity of the steel bar structure in the lower half beam 200 when the steel bar structure is affected by load and has a deformation trend is enhanced, the possibility that the steel bar skeleton is deformed or position-shifted due to heavy load is reduced, and the structural reliability is improved.

In one embodiment, a floor slab 100 is further included, and the floor slab 100 is connected to the top end of the first prefabricated panel 202 or the floor slab 100 is connected to the top end of the second prefabricated panel 203.

Specifically, the floor slab 100 is positioned between the upper half beam 300 and the lower half beam 200, and the floor slabs 100 positioned at both sides of the beam structure may be respectively taken and placed on the top ends of the first prefabricated panels 202 and the second prefabricated panels 203, and connected accordingly.

In this embodiment, the floor slab 100 is connected to the top end of the first precast slab 202 or the second precast slab 203, so that the connection between the floor slab 100 and the beam body is realized, and a building structure with an upturned beam is formed.

In one embodiment, the upper half beam 300 includes a plurality of upper beam stirrups 304, and a third prefabricated slab 302 and a fourth prefabricated slab 303 which are oppositely disposed, wherein the upper beam stirrups 304 are square ring-shaped, two opposite sides of the upper beam stirrups 304 penetrate into the third prefabricated slab 302 and the fourth prefabricated slab 303 respectively, the upper beam stirrups 304 are distributed at intervals along the length direction of the upper half beam 300, and an upper accommodating cavity 301 is formed between the third prefabricated slab 302 and the fourth prefabricated slab 303.

In this embodiment, an upper accommodation cavity 301 is formed between the third prefabricated slab 302 and the fourth prefabricated slab 303, during construction, the upper half beam 300 is firstly hoisted to the lower half beam 200, the cylindrical connecting ribs 400 penetrate from the lower end opening of the upper accommodation cavity 301, then concrete grout is poured from the upper end opening of the upper accommodation cavity 301, concrete pouring is achieved, the upper beam stirrup 304 is used as a part of the reinforcing steel structure of the upper half beam 300, the strength of the upper half beam 300 is improved, and accordingly structural reliability is improved.

In one embodiment, a plurality of upper beam steel bars 305 are arranged in the upper half beam 300 along the length direction of the upper half beam 300, the plurality of upper beam steel bars 305 are all positioned on the inner side of the upper beam stirrup 304 and are in butt joint with the upper beam stirrup 304, the plurality of upper beam steel bars 305 are arranged in pairs, upper tie bars 306 are arranged between the upper beam steel bars 305 which are arranged in part oppositely, and the upper tie bars 306 are suitable for restraining the positions and the shapes of the upper beam steel bars 305.

In this embodiment, the upper beam reinforcement 305 and the upper beam stirrup 304 together form a reinforcement cage structure, which improves the shear resistance and bending resistance of the upper half beam 300 and constrains concrete, and the upper tie bars 306 limit the positions and shapes of the paired upper beam reinforcement 305, so that the overall rigidity of the reinforcement cage is improved when the upper beam reinforcement 305 is subjected to a load to generate a deformation trend, thereby further improving the structural strength of the upper half beam 300.

In some of the above embodiments, the production and construction process of the upturned beam is as follows:

Welding the steel bar structures in the upper half beam 300 and the lower half beam 200 in a factory, wherein the welding comprises the steps of assembling and welding each upper beam steel bar 305 and each upper beam stirrup 304 to form a steel bar cage structure, and arranging upper tie bars 306 between part of the opposite upper beam steel bars 305; splicing and welding each lower beam steel bar 205 and the lower beam stirrup 204 to form a steel reinforcement cage structure, and arranging lower tie bars 207 between part of the opposite lower beam steel bars 205; the rebar structures of the upper half beam 300 and the rebar structures of the lower half beam 200 are then placed in the corresponding molds, and the upper half beam 300 and the lower half beam 200 are poured to form a third prefabricated panel 302, a fourth prefabricated panel 303, a first prefabricated panel 202 and a second prefabricated panel 203 integrally connected with the corresponding rebar structures, and a part of the lower half beam 200 structure further includes a bottom panel 206 integrally formed with the first prefabricated panel 202 and the second prefabricated panel 203, as needed. After the concrete to be poured is set and formed, the upper half beam 300 and the lower half beam 200 are transported to a construction site.

After the transportation of the upper half beam 300, the lower half beam 200, the cylindrical connecting rib 400 and other building materials is completed, the lower half beam 200 is firstly hoisted at the construction site, and then the two ends of the cylindrical connecting rib 400 are provided with the anchoring structures, and it should be noted that the anchoring structures can also be prefabricated and completed before the step, the cylindrical connecting rib 400 can be sequentially installed in the lower accommodating cavity 201, and the cylindrical connecting rib 400 and the reinforcing structures in the lower half beam 200 are fixed by welding or steel wire and other reinforcing steel bar connecting means commonly used in building construction. After the lifting of the lower half beam and the installation of the cylindrical connecting rib 400 are completed, a constructor installs the formwork and once pours concrete from the upper end opening of the lower receiving cavity 201.

After the primary poured concrete is initially set, the upper half beam 300 is lifted, constructors can finely adjust the columnar connecting ribs 400 and the reinforcing steel structures in the upper half beam 300 according to actual lifting conditions, the possibly interfered parts are avoided, then the upper half beam 300 is lifted, the corresponding templates are installed, concrete is secondarily poured from the upper end opening of the upper accommodating cavity 301, and after the concrete is solidified, the upper half beam 300 is connected with the lower half beam 200 to form an integral upturned beam. The constructor continues to complete other construction work and dismount the corresponding formwork.

According to an embodiment of the present utility model, in another aspect, there is also provided a building structure including the beam structure of any of the above embodiments.

In the embodiment, firstly, compared with the common beam structure, the beam structure saves the layer height while ensuring the strength, thereby improving the indoor space; secondly, because the beam structure is a prefabricated structure, compared with the mode of pouring the beam structure on site, the construction period is greatly shortened; in addition, the upturning beam structure adopts the columnar connecting rib 400 to connect and pour the upper half beam 300 and the lower half beam 200 on site, the columnar connecting rib 400 is not easy to interfere with the movement of the original reinforcing steel bar structure and other structures in the upper half beam 300, and compared with the traditional stirrup connection mode, the direction of the upturning beam structure is easier to avoid and adjust, so that the construction steps can be further simplified and the construction efficiency can be improved.

Although embodiments of the present utility model have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations fall within the scope of the utility model as defined by the appended claims.

Claims (10)

1. A beam structure, comprising:

a lower half beam (200), wherein a lower accommodating cavity (201) suitable for pouring concrete is arranged in the lower half beam (200);

an upper half beam (300) which is arranged at the upper end of the lower half beam (200), wherein an upper accommodating cavity (301) which is suitable for being communicated with the lower accommodating cavity (201) and is used for pouring concrete is arranged in the upper half beam (300);

the column-shaped connecting ribs (400) are arranged, one end of each column-shaped connecting rib (400) stretches into the lower accommodating cavity (201), the other end of each column-shaped connecting rib stretches into the upper accommodating cavity (301) and is suitable for improving the shearing resistance of the beam body, and the column-shaped connecting ribs (400) are distributed at intervals along the length direction of the lower half beam (200).

2. Beam structure according to claim 1, characterized in that both ends of the cylindrical connecting bar (400) are provided with anchoring structures (401).

3. The beam structure according to claim 1, wherein the lower half beam (200) comprises a plurality of lower beam stirrups (204) and a first precast slab (202) and a second precast slab (203) which are oppositely arranged, the lower beam stirrups (204) are square-ring-shaped, two opposite sides respectively penetrate into the first precast slab (202) and the second precast slab (203), the lower beam stirrups (204) are distributed at intervals along the length direction of the lower half beam (200), and a lower accommodating cavity (201) is formed between the first precast slab (202) and the second precast slab (203).

4. A beam structure according to claim 3, wherein the lower half-beam (200) further comprises a bottom plate (206), both sides of the bottom plate (206) being connected to the first prefabricated panel (202) and the second prefabricated panel (203), respectively.

5. A beam structure according to claim 3, characterized in that a plurality of lower beam steel bars (205) are arranged in the lower half beam (200) along the length direction of the lower half beam (200), and the plurality of lower beam steel bars (205) are all positioned at the inner side of the lower beam stirrup (204) and are abutted against the lower beam stirrup (204).

6. The beam structure according to claim 5, wherein a plurality of the lower beam reinforcements (205) are arranged in pairs, and a lower tie (207) is provided between the lower beam reinforcements (205) arranged in parts in opposition, the lower tie (207) being adapted to constrain the position and shape of the lower beam reinforcements (205).

7. A beam structure according to claim 3, further comprising a floor slab (100), said floor slab (100) being connected to the top end of said first precast slab (202) or said floor slab (100) being connected to the top end of said second precast slab (203).

8. The beam structure according to any one of claims 1 to 7, wherein the upper half beam (300) comprises a plurality of upper beam stirrups (304) and third and fourth precast slabs (302, 303) which are oppositely arranged, the upper beam stirrups (304) are square ring-shaped, two opposite sides penetrate into the third and fourth precast slabs (302, 303) respectively, the plurality of upper beam stirrups (304) are distributed at intervals along the length direction of the upper half beam (300), and an upper accommodating cavity (301) is formed between the third and fourth precast slabs (302, 303).

9. The beam structure according to claim 8, wherein a plurality of upper beam steel bars (305) are disposed in the upper half beam (300) along the length direction of the upper half beam (300), the plurality of upper beam steel bars (305) are all located inside the upper beam stirrups (304) and are abutted to the upper beam stirrups (304), the plurality of upper beam steel bars (305) are disposed in two-to-two opposite directions, upper tie bars (306) are disposed between the upper beam steel bars (305) disposed in part opposite to each other, and the upper tie bars (306) are adapted to constrain the position and shape of the upper beam steel bars (305).

10. A building structure, comprising: the beam structure of any one of claims 1 to 9.