Bidirectional stress frame structure composed of ribbed beam plates and construction method of bidirectional stress frame structure

Abstract

The invention relates to the technical field of building construction, in particular to a bidirectional stress frame structure composed of ribbed beam slabs and a construction method thereof.The frame structure comprises a frame body which is a three-dimensional frame formed by combining at least two assembly type frame columns and at least two main stress beams; the fabricated frame column comprises at least two column body sections and a connecting section, the multiple ribbed beam plates are arranged side by side in an adjacent mode, and each ribbed beam plate comprises a floor plate and a ribbed beam matched with the notch; the rib beam plate at the edge position is connected with the connecting section; and the cast-in-situ laminated layer is used for being poured on the ribbed beam plate, in the connecting section and in the notch. According to the invention, the edge rib beams of the rib beam plate are combined to form a multidirectional superposed beam structure, a bidirectional stress system is formed, the number of complex components in a traditional frame structure is reduced, and the technical problem of repeated stress of the frame beams and the edge ribs of the rib beam plate in a building frame structure in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a bidirectional force-bearing frame structure composed of rib beams and plates and a construction method thereof. Background Art

[0002] In the field of building structures, frame structure is a common structural form, mainly composed of frame columns, frame beams, secondary beams and floor slabs. This structural form has the advantages of flexible space division, light weight, material saving, earthquake resistance and standardized construction, so it has been widely used in high-rise buildings, large public buildings and other fields.

[0003] However, in traditional frame structure construction, when the floor span is large, the economic efficiency of using flat plates as floor materials is poor. In order to optimize structural performance and reduce costs, people began to use ribbed beams as floor materials. Ribbed beams are composed of various forms, including dense ribbed plates and double ribbed beams with side ribs, etc. These forms can be selected according to specific engineering requirements.

[0004] In the application of rib beam slab, the frame beam is usually cast in place or in the form of a composite beam. However, there is a problem of repeated force between the traditional frame beam and the side ribs of the rib beam slab, which not only increases the complexity of the structure but also affects the aesthetics of the structure. In addition, the traditional frame structure requires the arrangement of a large number of components during the construction process, which not only increases the difficulty of construction but also increases the cost of the project.

[0005] In summary, there is an urgent need for a frame structure that is simplified in structure but can meet the requirements of bidirectional force to solve the problems existing in the prior art. Summary of the invention

[0006] The object of the present invention is to provide a bidirectional force-bearing frame structure composed of rib beam plates and a construction method thereof, so as to solve the technical problem that the frame beams and the side ribs of the rib beam plates in the building frame structure in the prior art have repeated force. The specific technical scheme is as follows:

[0007] The present invention provides a bidirectional force-bearing frame structure composed of rib beam plates, comprising: a frame body, which is a three-dimensional frame composed of at least two assembled frame columns and at least two main force-bearing beams, the assembled frame columns comprising at least two column sections and a connecting section, the connecting section being used to connect the column sections arranged adjacently; two ends of the main force-bearing beam are respectively connected to two adjacent assembled frame columns, and the main force-bearing beam is provided with a plurality of recesses; a plurality of rib beam plates, which are arranged side by side and adjacent to each other, the rib beam plates comprising a floor panel and a rib beam matching the recess, the rib beam being fixed to one side of the floor panel along its length direction and facing the bottom side of the floor panel; the rib beam plate located at the edge position is connected to the connecting section; a cast-in-place superimposed layer, which is used to be cast on the rib beam plate, in the connecting section and in the recess.

[0008] A further improvement of the bidirectional force-bearing frame structure composed of rib beam plates of the present invention is that the floor panel in the rib beam plates is provided with two rib beams arranged on both sides along the length direction thereof, and the two rib beams are both rib beams facing one side of the bottom surface of the floor panel; in the cast-in-place composite layer and at the overlapping position of the rib beams of two adjacent rib beam plates, rib beam surface tension bars and first support negative bars connected to the two rib beam plates are provided, and second support negative bars are fixed on the top inner wall of the rib beam stirrups along the length direction of the rib beam, and the cast-in-place composite layer and the rib beams of the two adjacent rib beam plates are overlapped to form a multi-directional composite beam.

[0009] A further improvement of the bidirectional force-bearing frame structure composed of rib beams and plates of the present invention is that the bending moment of the multidirectional composite beam should meet the following requirements:

[0010]

[0011] α1f c bx=f y A s -f′ y A′ s ;

[0012] Where M is the bending moment at the section; α1 is the concrete strength coefficient; f c is the design value of concrete axial compressive strength; b is the section width; x is the height of the concrete compression zone; h0 is the effective height of the multi-directional composite beam section; f′ y A′ is the design value of compressive strength of the top reinforcement of the rib beam; s a′ is the cross-sectional area of ​​the longitudinal reinforcement in the compression zone; s f is the distance from the centroid of the top reinforcement of the rib beam to the compression edge; y A is the design value of tensile strength of the reinforcement at the bottom of the rib beam; s is the cross-sectional area of ​​the longitudinal reinforcement in the tension zone.

[0013] A further improvement of the bidirectional force-bearing frame structure composed of rib beams and plates of the present invention is that the connecting section includes two mounting plates and at least two reinforcing ribs, at least two of the reinforcing ribs are fixed between the two mounting plates, a plurality of the longitudinal bars and a plurality of the prestressed rods pass through the two mounting plates, and a plurality of the prestressed rods are arranged to avoid the reinforcing ribs.

[0014] A further improvement of the bidirectional force-bearing frame structure composed of rib beams and plates of the present invention is that an anchor spanning the notch is provided on the main force-bearing beam and located at the notch.

[0015] The present invention also provides a construction method of the bidirectional force-bearing frame structure composed of rib beams and plates as described above, comprising the following steps:

[0016] Hoist at least two sets of prefabricated frame columns;

[0017] Hoisting at least two main load-bearing beams, so that at least two of the main load-bearing beams and at least two groups of the assembled frame columns are combined to form a three-dimensional frame;

[0018] Hoisting a plurality of rib beam plates, so that the plurality of rib beam plates are arranged side by side, overlapping and connecting the rib beams of two adjacent rib beam plates to the notches, and connecting the rib beam plates at the edge positions to the connecting sections;

[0019] Cast-in-situ concrete is cast on the rib beam plate, in the connecting section and in the recess to form a cast-in-situ superimposed layer.

[0020] A further improvement of the construction method of the bidirectional force-bearing frame structure composed of rib beam plates of the present invention is that when a plurality of the rib beam plates are arranged side by side, at the overlapping position of the rib beams of two adjacent rib beam plates, the two rib beam plates are connected by rib beam surface tension bars and first support negative bars, and second support negative bars are fixed on the top inner wall of the rib beam stirrups along the length direction of the rib beam.

[0021] A further improvement of the construction method of the bidirectional force-bearing frame structure composed of rib beams and plates of the present invention is that after hoisting at least two groups of assembled frame columns and before hoisting at least two main force-bearing beams, a detachable first corbel is arranged at the node between the main force-bearing beam and the assembled frame column, and the top surface elevation of the corbel is made consistent with the bottom elevation of the main force-bearing beam;

[0022] When hoisting at least two main load-bearing beams, the main load-bearing beams are supported on the first corbel.

[0023] A further improvement of the construction method of the bidirectional force-bearing frame structure composed of rib beam plates of the present invention is that after hoisting at least two main force-bearing beams and before hoisting multiple rib beam plates, a detachable second corbel is set or a supporting structure is arranged at the position where the main force-bearing beam supports the rib beam.

[0024] A further improvement of the construction method of the bidirectional force-bearing frame structure composed of rib beam plates of the present invention is that when hoisting multiple rib beam plates, when steel bars extend from both ends of the rib beam plates, the rib beam plates are supported on steel corbels or supporting structures; when steel bars do not extend from both ends of the rib beam plates, when prefabricating the rib beam plates, a mechanical connection sleeve is reserved at the bottom of the rib beam, and the anchoring steel bars at the bottom of the beam are connected through the mechanical connection sleeve so that the steel bars at the bottom of the beam are anchored in the main force-bearing beam, and the negative reinforcement at the top of the rib beam at the main force-bearing beam support passes through the rib beam stirrups and passes through the main force-bearing beam cross section, and the positioning of the negative reinforcement is completed according to the design requirements.

[0025] The application of the technical solution of the present invention has the following beneficial effects:

[0026] The present invention forms a structure of a multi-directional composite beam by combining the edge rib beams of the rib beam plate, thereby reducing the number of complex components in the traditional frame structure, thereby saving material costs and construction time. The design of the rib beam plate without ribs on all four sides simplifies the installation process and reduces the construction difficulty and labor costs. The present invention uses the edge rib beams of the rib beam plate to form a multi-directional composite beam, which can more effectively transfer and disperse the load and improve the overall force performance of the frame structure. The design of the multi-directional composite beam allows the frame structure to only need to arrange a unidirectional beam, but can form a bidirectional force system, thereby enhancing the stability and safety of the structure. In addition, the construction method of the present invention adopts a hoisting assembly technology, which greatly shortens the construction period and improves the construction efficiency. Through the on-site assembly of prefabricated components, the amount of wet work on site is reduced, which is conducive to standardized construction and quality control. The distribution of the multi-directional composite beams of the present invention is regular, which not only saves the cost, but also makes the appearance of the structure more neat and beautiful. After the construction of the frame structure is completed, it can meet the requirements of the building for aesthetics, while reducing the construction cost.

[0027] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0029] Figure 1 It is a schematic diagram of hoisting at least two groups of assembled frame columns in the construction method of the bidirectional force-bearing frame structure composed of rib beams and plates of the present invention (reinforcements are not shown);

[0030] Figure 2 It is a longitudinal cross-sectional view of an assembled frame column of a bidirectional force-bearing frame structure composed of rib beams and plates of the present invention;

[0031] Figure 3It is a schematic diagram of hoisting at least two main load-bearing beams in the construction method of the bidirectional load-bearing frame structure composed of rib beams and plates of the present invention (reinforcements are not shown);

[0032] Figure 4 for Figure 3 Sectional view along line AA;

[0033] Figure 5 It is a schematic diagram of a two-way force-bearing frame structure composed of rib beams and plates according to the present invention after multiple rib beams and plates are connected to the bottom of the rib beams and anchored with steel bars;

[0034] Figure 6 It is a schematic diagram of hoisting a plurality of rib beam plates in the construction method of the bidirectional force-bearing frame structure composed of rib beam plates of the present invention (reinforcements are not shown);

[0035] Figure 7 It is a schematic diagram of the connection between the main load-bearing beam and the connecting section of the bidirectional load-bearing frame structure composed of rib beams and plates of the present invention;

[0036] Figure 8 for Figure 6 Sectional view along the midline BB;

[0037] Fig. 9 It is a schematic diagram of constructing a cast-in-place superimposed layer in a construction method of a bidirectional force-bearing frame structure composed of rib beams and plates according to the present invention;

[0038] Fig.10 for Fig. 9 Sectional view along CC line;

[0039] Fig.11 for Fig. 9 Schematic diagram of the cross section along the middle DD line;

[0040] Fig.12 It is a schematic diagram of the connection between the rib beam plate and the main load-bearing beam of the bidirectional load-bearing frame structure composed of the rib beam plate of the present invention;

[0041] Fig.13 It is a cross-sectional view of a multi-directional composite secondary beam of a bidirectional force-bearing frame structure composed of rib beams and plates of the present invention;

[0042] Fig.14 It is a schematic diagram of the longitudinal force of the multi-directional composite secondary beam of the bidirectional force-bearing frame structure composed of rib beams and plates of the present invention;

[0043] Fig.15 The present invention is a schematic diagram of the arrangement of reinforcement bars of multi-directional composite secondary beams of a bidirectional force-bearing frame structure composed of rib beams and plates.

[0044] Among them, 1. Column section; 2. Connection section; 3. Main load-bearing beam; 4. Anchor; 5. Floor slab; 6. Rib beam; 7. Cast-in-place composite layer; 8. Bottom reinforcement of main load-bearing beam; 9. Stirrups of main load-bearing beam; 10. Surface reinforcement of main load-bearing beam; 11. Notch; 12. Anchor steel bars at the bottom of rib beam; 13. Anchor steel bars of load-bearing beam; 14. Multi-directional composite frame beam; 15. Multi-directional composite secondary beam; 16. Stirrups of rib beam; 17. Installation gap; 18. Mechanical connection sleeve; 19. Negative reinforcement of the first support; 20. Negative reinforcement of the second support; 21. Tension bars on the surface of rib beam; 22. Longitudinal reinforcement in the compression zone. DETAILED DESCRIPTION

[0045] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0046] See also Figure 1 to Figure 15 As shown, a bidirectional force-bearing frame structure composed of rib beam plates comprises: a frame body, which is a three-dimensional frame composed of at least two assembled frame columns and at least two main force-bearing beams 3, the assembled frame column comprises at least two column segments 1 and a connecting segment 2, the connecting segment 2 is used to connect the adjacent column segments 1; the two ends of the main force-bearing beam 3 are respectively connected to the two adjacent assembled frame columns, and the main force-bearing beam 3 is provided with a plurality of recesses 11; a plurality of rib beam plates, the plurality of rib beam plates are arranged side by side, the rib beam plates comprise a floor panel 5 and a rib beam 6 matching the recess 11, the rib beam 6 is fixed to one side of the floor panel 5 along its length direction and toward the bottom side of the floor panel 5; the rib beam plate located at the edge position is connected to the connecting segment 2; a cast-in-place composite layer 7, the cast-in-place composite layer 7 is used to be cast on the rib beam plate, in the connecting segment 2 and in the recess 11.

[0047] Specifically, the assembled frame column is a general frame column formed by fixing the column segments 1 of the multi-story building through the connecting segments 2, so that the multi-story column segments 1 can be hoisted uniformly. The rib beam 6 of the rib beam plate is fixed to the bottom surface of the floor plate 5, so the cross section is U-shaped, and there are no ribs on the four sides, which is convenient for installation, and only the bottom ribs of the rib beams are exposed. Figure 8 As shown, after the rib beam plate is installed, the two rib beams 6 of the two adjacent rib beam plates are horizontally spliced ​​together, and after the cast-in-place superposition layer 7 is constructed, a multi-directional superposition beam is formed, which is a multi-directional superposition frame beam 14 or a multi-directional superposition secondary beam 15, replacing the traditional frame beam or secondary beam. The steel cage of the main load-bearing beam 3 includes the main load-bearing beam bottom reinforcement 8, the main load-bearing beam stirrups 9 and the main load-bearing beam surface reinforcement 10.

[0048] Preferably, Fig.11As shown, the floor panel 5 in the rib beam plate is provided with two rib beams 6 arranged on both sides along the length direction thereof, and both rib beams are rib beams facing the bottom side of the floor panel 5; in the cast-in-place superimposed layer 7 and at the superimposed position of the rib beams 6 of the two adjacent rib beam plates, there are rib beam surface tension bars 21 connected to the two rib beam plates and the first support negative bars 19, and the second support negative bars 20 are fixed on the top inner wall of the rib beam stirrups 16 along the length direction of the rib beam 6, and the cast-in-place superimposed layer 7 is cast on the top and bottom of the rib beam 6 and the installation gap 17 between the rib beams 6 of the two adjacent rib beam plates, and then superimposed to form a multi-directional superimposed beam. Furthermore, the two ends of the first support negative bars 19 are bent downward to form a bending section, thereby enhancing the tensile strength between the two adjacent rib beam plates. The rib beam surface tension bars 21 and the first support negative bars 19 can realize the pulling effect of the two adjacent rib beam plates, so that the two adjacent rib beam plates can be fixed after the cast-in-place superimposed layer 7.

[0049] Preferably, Figure 11 to Figure 15 As shown, the edge rib beams 6 of two adjacent rib beam plates are horizontally overlapped, and the cast-in-place overlap layer 7 is partially vertically overlapped to form a multi-directional composite beam, which includes a multi-directional composite frame beam 14 or a multi-directional composite secondary beam 15. By overlapping the rib beams 6 of the rib beam plates, the advantages of the rib beams 6 are fully utilized, and the traditional frame beams in another direction can be replaced, and the design requirement that the width of the frame beam is not less than 200 mm is met. The bending moment of the multi-directional composite beam should meet the following requirements:

[0050]

[0051] α1f c bx=f y A s -f′ y A′ s ;

[0052] Where M is the bending moment at the section; α1 is the concrete strength coefficient; f c is the design value of concrete axial compressive strength; b is the section width; x is the height of the concrete compression zone; h0 is the effective height of the multi-directional composite beam section; f′ y A′ is the design value of compressive strength of the top reinforcement of the rib beam; s a′ is the cross-sectional area of ​​the longitudinal reinforcement 22 (i.e., the negative reinforcement 20 of the second support) in the compression zone; s f is the distance from the centroid of the top reinforcement of the rib beam (i.e. the negative reinforcement 20 of the second support) to the compression edge; y A is the design value of tensile strength of the reinforcement at the bottom of the rib beam; s is the cross-sectional area of ​​the longitudinal reinforcement in the tension zone.

[0053] Preferably, the connection section 2 includes two mounting plates and at least two reinforcing ribs, at least two of the reinforcing ribs are fixed between the two mounting plates, a plurality of the longitudinal ribs and a plurality of the prestressed rods pass through the two mounting plates, and a plurality of the prestressed rods are arranged to avoid the reinforcing ribs. By prefabricating the assembled frame column as a whole and hoisting it as a whole, the connection section 2 ensures the strength during hoisting, and the connection section 2 is conveniently connected to the steel bars of the beam and the plate to realize the steel bar force transmission. When the cast-in-place superimposed layer 7 is cast, the connected connection section 2 is cast again, avoiding the vertical adjustment, elevation control and component positioning operations for each layer when installing the assembled frame column layer by layer, thereby improving the installation efficiency of the prefabricated components.

[0054] Preferably, Figure 3 and Figure 4 As shown, an anchor 4 is provided on the main load-bearing beam 3 and at the notch 11, which crosses the notch 11. The anchor 4 is installed at the notch 11, so that the two sides of the notch 11 are further tied and fixed, thereby improving the tensile and shear strengths at the notch 11, and avoiding the technical problem that the notch 11 of the variable-section assembled concrete beam structure is prone to cracking.

[0055] Preferably, the recess 11 is provided with a rib bottom anchoring steel bar 12 for connecting the rib beam 6, and the end of the rib beam 6 is provided with a mechanical connection sleeve 18 for connecting the rib bottom anchoring steel bar 12. Specifically, when the rib beam plate is a structure without reinforcements on all sides, the mechanical connection sleeve 18 is embedded in the bottom of the rib beam 6 when the rib beam plate is prefabricated, and the end face of the mechanical connection sleeve 18 is made flush with the end face of the concrete, so that the rib bottom anchoring steel bar 12 can be directly connected to the mechanical connection sleeve 18, so that the rib beams 6 with opposite ends can be connected. In addition, if the end of the load-bearing beam 3 is also a structure without reinforcements, a structure of a mechanical sleeve connecting the load-bearing beam anchoring steel bar 13 can also be provided to achieve connection with the connecting section 2 of the assembled frame column.

[0056] Preferably, Figure 8 As shown, the recess 11 is provided with negative reinforcement of the floor support for connecting the cast-in-place composite layer 7 at the top of two adjacent rib beam plates, and the negative reinforcement of the floor support is fixed to the rib beam stirrups 16 exposed at the top of the main load-bearing beam 3, so that the beam body of the main load-bearing beam 3 on both sides of the recess 11 can be tied, thereby improving the tensile strength of the main load-bearing beam 3.

[0057] like Figures 1 to 10 As shown, the present invention also provides a construction method of the bidirectional force-bearing frame structure composed of rib beams and plates as described above, comprising the following steps:

[0058] Hoist at least two sets of prefabricated frame columns, and adjust the column elevation, verticality, etc. through the bolts connecting the column base to the foundation;

[0059] Hoisting at least two main load-bearing beams 3, so that at least two main load-bearing beams 3 and at least two groups of assembled frame columns are combined to form a three-dimensional frame;

[0060] Hoisting a plurality of rib beam plates, so that the plurality of rib beam plates are arranged side by side, overlapping and connecting the rib beams 6 of two adjacent rib beam plates to the notch 11, and connecting the rib beam plates at the edge to the connecting section 2;

[0061] In-situ concrete is cast on the ribbed beam plate, in the connecting section 2 and in the recess 11 to form an in-situ laminated layer 7 .

[0062] Preferably, when multiple rib beam plates are arranged side by side, at the overlapping position of the rib beams 6 of two adjacent rib beam plates, the two rib beam plates are connected through rib beam surface tension bars 21 and first support negative bars 19, and second support negative bars 20 are fixed on the top inner wall of the rib beam stirrups 16 along the length direction of the rib beam 6.

[0063] Preferably, after hoisting at least two groups of assembled frame columns and before hoisting at least two main load-bearing beams 3, a detachable first corbel is arranged at the node between the main load-bearing beam 3 and the assembled frame column, and the top surface elevation of the corbel is made consistent with the bottom elevation of the main load-bearing beam 3;

[0064] When hoisting at least two main load-bearing beams 3, the main load-bearing beams 3 are supported on the first corbel.

[0065] Preferably, after hoisting at least two main load-bearing beams 3 and before hoisting a plurality of rib beam plates, a detachable second corbel is provided or a supporting structure is arranged at the position where the main load-bearing beams 3 support the rib beams 6 .

[0066] Preferably, when hoisting multiple rib beam plates, when steel bars extend from both ends of the rib beam plate, the rib beam plate is supported on a steel corbel or a supporting structure; when steel bars do not extend from both ends of the rib beam plate, when prefabricating the rib beam plate, a mechanical connection sleeve 18 is reserved at the bottom of the rib beam 6, and the anchoring steel bars at the bottom of the beam are connected through the mechanical connection sleeve 18 so that the steel bars at the bottom of the beam are anchored into the main load-bearing beam 3, and the negative reinforcement at the top of the rib beam 6 at the support of the main load-bearing beam 3 passes through the rib beam stirrups 16 and passes through the cross section of the main load-bearing beam 3, and the positioning of the negative reinforcement is completed according to the design requirements.

[0067] When the cast-in-place concrete is cast on the rib beam plate, in the connection section 2 and in the recess 11 to form the cast-in-place superimposed layer 7, the connection section 2 area is cast with a material with a strength grade not lower than that of the column concrete; the cast-in-place superimposed layer 7 is cast according to the concrete strength required by the design.

[0068] The present invention forms a structure of a multi-directional composite beam by combining the rib beams 6 at the edge of the rib beam plate, thereby reducing the number of complex components in the traditional frame structure, thereby saving material costs and construction time. The design of the rib beam plate without ribs on all four sides simplifies the installation process and reduces the construction difficulty and labor costs. The present invention uses the rib beams 6 at the edge of the rib beam plate to form a multi-directional composite beam, which can more effectively transfer and disperse the load and improve the overall force performance of the frame structure. The design of the multi-directional composite beam allows the frame structure to only need to arrange a unidirectional beam, but can form a bidirectional force system, thereby enhancing the stability and safety of the structure. In addition, the construction method of the present invention adopts a hoisting assembly technology, which greatly shortens the construction period and improves the construction efficiency. Through the on-site assembly of prefabricated components, the amount of wet work on site is reduced, which is conducive to standardized construction and quality control. The distribution of the multi-directional composite beams of the present invention is regular, which not only saves the cost, but also makes the appearance of the structure more neat and beautiful. After the construction of the frame structure is completed, it can meet the requirements of the building for aesthetics, while reducing the construction cost.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bidirectional force-bearing frame structure composed of rib beams and plates, characterized in that: include: A frame body, the frame body being a three-dimensional frame composed of at least two assembled frame columns and at least two main load-bearing beams (3), the assembled frame columns comprising at least two column segments (1) and a connecting segment (2), the connecting segment (2) being used to connect the adjacent column segments (1); the two ends of the main load-bearing beam (3) are respectively connected to the two adjacent assembled frame columns, and the main load-bearing beam (3) is provided with a plurality of notches (11); A plurality of rib beam plates, wherein the plurality of rib beam plates are arranged side by side, the rib beam plates comprising a floor panel (5) and a rib beam (6) matching the notch (11), the rib beam (6) being fixed to one side of the floor panel (5) along its length direction and facing the bottom side of the floor panel (5); the rib beam plates at the edge positions are connected to the connecting sections (2); A cast-in-place superimposed layer (7) is used for casting on the rib beam plate, in the connecting section (2) and in the recess (11).

2. The bidirectional force-bearing frame structure composed of rib beams and plates according to claim 1 is characterized in that: The floor panel (5) in the rib beam plate is provided with two rib beams (6) arranged on both sides along the length direction thereof, and the two rib beams are both rib beams facing the bottom side of the floor panel (5); In the cast-in-place superimposed layer (7) and at the superimposed position of the rib beams (6) of two adjacent rib beam plates, there are rib beam surface tension bars (21) and first support negative bars (19) connected to the two rib beam plates, and second support negative bars (20) are fixed on the top inner wall of the rib beam stirrups (16) along the length direction of the rib beam (6). The cast-in-place superimposed layer (7) and the rib beams (6) of the two adjacent rib beam plates are superimposed to form a multi-directional superimposed beam.

3. The bidirectional force-bearing frame structure composed of rib beams and plates according to claim 2 is characterized in that: The bending moment of the multi-directional composite beam shall meet the following requirements: α 1 f c bx=f y A s -f′ y A′ s ; Where M is the bending moment at the section; α1 is the concrete strength coefficient; f c is the design value of concrete axial compressive strength; b is the section width; x is the height of the concrete compression zone; h0 is the effective height of the multi-directional composite beam section; f′ y A′ is the design value of compressive strength of the top reinforcement of the rib beam; s a′ is the cross-sectional area of ​​the longitudinal reinforcement (22) in the compression zone; s f is the distance from the centroid of the top reinforcement of the rib beam to the compression edge; y A is the design value of tensile strength of the reinforcement at the bottom of the rib beam; s is the cross-sectional area of ​​the longitudinal reinforcement in the tension zone.

4. The bidirectional force-bearing frame structure composed of rib beams and plates according to claim 1 is characterized in that: The connecting section (2) comprises two mounting plates and at least two reinforcing ribs, wherein at least two of the reinforcing ribs are fixed between the two mounting plates, a plurality of the longitudinal ribs and a plurality of the prestressed rods pass through the two mounting plates, and a plurality of the prestressed rods are arranged to avoid the reinforcing ribs.

5. The bidirectional force-bearing frame structure composed of rib beams and plates according to claim 1 is characterized in that: An anchor (4) is provided on the main load-bearing beam (3) and located at the notch (11) and spans the notch (11).

6. A construction method of a bidirectional force-bearing frame structure composed of rib beams and plates as claimed in claim 1, characterized in that: The steps include: Hoist at least two sets of prefabricated frame columns; Hoisting at least two main load-bearing beams (3), so that at least two of the main load-bearing beams (3) are combined with at least two groups of assembled frame columns to form a three-dimensional frame; Hoisting a plurality of rib beam plates so that the plurality of rib beam plates are arranged side by side, overlapping and connecting the rib beams (6) of two adjacent rib beam plates to the notches (11), and connecting the rib beam plates at the edge to the connecting sections (2); In-situ concrete is cast on the rib beam plate, in the connecting section (2) and in the recess (11) to form an in-situ superimposed layer (7).

7. The construction method of the bidirectional force-bearing frame structure composed of rib beams and plates according to claim 6, characterized in that: When a plurality of the rib beam plates are arranged side by side, at the overlapping position of the rib beams (6) of two adjacent rib beam plates, the two rib beam plates are connected via rib beam surface tension bars (21) and first support negative bars (19), and second support negative bars (20) are fixed on the top inner wall of the rib beam stirrups (16) along the length direction of the rib beam (6).

8. The construction method of the bidirectional force-bearing frame structure composed of rib beams and plates according to claim 6, characterized in that: After hoisting at least two groups of assembled frame columns and before hoisting at least two main load-bearing beams (3), a detachable first corbel is arranged at the node between the main load-bearing beam (3) and the assembled frame column, and the elevation of the top surface of the corbel is made consistent with the elevation of the bottom of the main load-bearing beam (3); When hoisting at least two main load-bearing beams (3), the main load-bearing beams (3) are supported on the first corbel.

9. The construction method of the bidirectional force-bearing frame structure composed of rib beams and plates according to claim 6, characterized in that: After hoisting at least two main load-bearing beams (3) and before hoisting a plurality of rib beam plates, a detachable second bracket is provided or a supporting structure is arranged at the position where the main load-bearing beam (3) supports the rib beam (6).

10. The construction method of the bidirectional force-bearing frame structure composed of rib beams and plates according to claim 9, characterized in that: When hoisting a plurality of rib beam plates, when steel bars extend from both ends of the rib beam plates, the rib beam plates are supported on steel brackets or supporting structures; when steel bars do not extend from both ends of the rib beam plates, when prefabricating the rib beam plates, a mechanical connection sleeve (18) is reserved at the bottom of the rib beam (6), and the anchoring steel bars at the bottom of the beam are connected through the mechanical connection sleeve (18) so that the steel bars at the bottom of the beam are anchored into the main load-bearing beam (3), and the negative reinforcement at the top of the rib beam (6) at the support of the main load-bearing beam (3) passes through the rib beam stirrups (16) and passes through the cross section of the main load-bearing beam (3), and the positioning of the negative reinforcement is completed according to the design requirements.

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