Modular seismic-resistant composite beam structure, modular building structure and construction method

Abstract

The present invention relates to the technical field of modular building structures, and in particular to a modular seismic-resistant composite beam structure, a modular building structure and a construction method. The modular seismic-resistant composite beam structure includes a first floor beam, a second floor beam, a first ceiling beam, a second ceiling beam and an inter-beam connector. The two floor beams and the two ceiling beams are arranged opposite to each other. The first ceiling beam and the second ceiling beam are correspondingly arranged at the bottom of the first floor beam and the second floor beam. A grouting cavity is formed between the two floor beams and between the two ceiling beams. The inter-beam connector is arranged in the grouting cavity to connect the first floor beam, the second floor beam, the first ceiling beam and the second ceiling beam, so that the four beams form an integral composite beam structure, reduce material costs, and improve the mechanical properties of modular structural beam components; at the same time, it solves key problems such as the disconnection of modular structural floor slabs and weak connections between modules, increases the structural force transmission path, and improves the integrity, stability and seismic resistance of the modular building structure.

Description

Technical Field

[0001] The present invention relates to the technical field of modular building structures, and in particular to a modular earthquake-resistant composite beam structure, a modular building structure and a construction method. Background Art

[0002] Modular construction is a highly integrated prefabricated assembly system that uses modular assembly to construct buildings. In traditional modular building structures, modules are connected through horizontal connecting plates and connection nodes set between columns. This connection method forms a "stacked beam and column" structure in modular buildings. The mechanical properties of the beam components in this upper and lower separated independent double-beam structure are difficult to fully utilize, resulting in a waste of materials and building space. At the same time, the floor beams and ceiling beams of the upper and lower modules are separated from each other, resulting in low lateral stiffness and poor stability of the overall modular building structure, and insufficient structural seismic performance. The force transmission path between modules is single and the connection is weak, and there is a problem of discontinuous floor slabs. The construction height of modular building structures is limited, making it difficult to meet the high-performance requirements of high-rise modular integrated building structural systems.

[0003] Therefore, it is necessary to study a new type of modular seismic-resistant composite beam structure to optimize the stacked beam structure in traditional modular buildings, effectively improve the overall stiffness and bearing capacity of the modular beams, reduce material waste, optimize space utilization, solve the problem of floor discontinuity, enhance the overall stability of the structure, and improve the seismic performance of modular buildings. Summary of the Invention

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a modular seismic-resistant composite beam structure, a modular building structure and a construction method, which solve the technical problems of insufficient seismic performance of modular beams in traditional modular building structures and discontinuous system floor slabs.

[0005] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0006] In a first aspect, the present invention provides a modular seismic-resistant composite beam structure comprising a first floor beam, a second floor beam, a first ceiling beam, a second ceiling beam, and inter-beam connectors;

[0007] The first floor beam and the second floor beam are arranged opposite to each other, and the first ceiling beam and the second ceiling beam are arranged opposite to each other; the first ceiling beam and the second ceiling beam are correspondingly arranged at the bottoms of the first floor beam and the second floor beam; a grouting cavity is formed between the first floor beam and the second floor beam and between the first ceiling beam and the second ceiling beam;

[0008] The inter-beam connector is disposed in the grouting cavity and is used to connect the first floor beam and the second floor beam, the first ceiling beam and the second ceiling beam, the first floor beam and the first ceiling beam, and the second floor beam and the second ceiling beam.

[0009] According to the present invention, the inter-beam connector includes:

[0010] First horizontal connecting members extend horizontally from opposite side walls of the first floor beam and the second floor beam, and the first ceiling beam and the second ceiling beam, and are staggered with each other;

[0011] Upper and lower connecting members are arranged on top of the first ceiling beam and the second ceiling beam and extend upward to the grouting cavity between the first floor beam and the second floor beam.

[0012] According to the present invention, the height of the grouting cavity between the first floor beam and the second floor beam, from which the upper and lower connecting members extend upward, is adjustable.

[0013] According to the present invention, the bottom width of the first floor beam is smaller than the top width of the first ceiling beam, and the bottom width of the second floor beam is smaller than the top width of the second ceiling beam.

[0014] According to the present invention, the present invention further comprises a second horizontal connecting member fixed to the column and extending horizontally to the grouting cavity for connecting the first floor beam, the second floor beam, the first ceiling beam and the second ceiling beam to the column.

[0015] According to the present invention, a bottom cover plate is provided between the first ceiling beam and the second ceiling beam to close the bottom gap therebetween.

[0016] According to the present invention, the cross sections of the first floor beam, the second floor beam, the first ceiling beam, and the second ceiling beam are all C-shaped.

[0017] According to the present invention, the present invention further comprises: a first reinforcement member fixed to the inner side of the top of the first floor beam and the second floor beam and extending downward, and a second reinforcement member fixed to the inner side of the bottom of the first ceiling beam and the second ceiling beam and extending upward; or,

[0018] The system further includes: a first reinforcement member fixed to the inner side of the tops of the first floor beam and the second floor beam and extending downward, a second reinforcement member fixed to the inner side of the bottoms of the first ceiling beam and the second ceiling beam and extending upward, a third reinforcement member fixed to the top of the inner side of the bottoms of the first floor beam and the second floor beam and extending upward, and a fourth reinforcement member fixed to the inner side of the tops of the first ceiling beam and the second ceiling beam and extending downward.

[0019] In a second aspect, the present invention further provides a modular building structure comprising the modular seismic-resistant composite beam structure, and further comprising columns;

[0020] One end of each of the first floor beam and the second floor beam in the length direction is fixed to two horizontally adjacent columns located above, and one end of each of the first ceiling beam and the second ceiling beam in the length direction is fixed to two horizontally adjacent columns located below, so as to connect four adjacent modules above and below; or

[0021] One end of the first floor beam and the second floor beam in the length direction is fixed to the same column above, and one end of the first ceiling beam and the second ceiling beam in the length direction is fixed to the same column below, so as to connect two adjacent modules above and below.

[0022] In a third aspect, the present invention further provides a construction method, which is applied to the modular building structure, and the construction method comprises the following steps:

[0023] S1. During processing, the inter-beam connector is installed on the first floor beam, the second floor beam, the first ceiling beam, and the second ceiling beam;

[0024] Fixing one end of the first floor beam and the second floor beam in the length direction to two horizontally adjacent columns above one another in a one-to-one correspondence; or, fixing one end of the first floor beam and the second floor beam in the length direction to the same column above, and fixing one end of the first ceiling beam and the second ceiling beam in the length direction to the same column below;

[0025] S2. When assembling the module on site, the first floor beam and the second floor beam are arranged relative to each other, and the first ceiling beam and the second ceiling beam are arranged relative to each other, with the top of the first ceiling beam abutting against the bottom of the first floor beam, and the top of the second ceiling beam abutting against the bottom of the second floor beam;

[0026] S3. Concrete is poured into the grouting cavity formed between the first floor beam and the second floor beam and between the first ceiling beam and the second ceiling beam. The inter-beam connector and the concrete connect the first floor beam and the second floor beam, the first ceiling beam and the second ceiling beam, the first floor beam and the first ceiling beam, and the second floor beam and the second ceiling beam to form an overall modular seismic-resistant composite beam structure, thereby forming a modular building structure.

[0027] The modular seismic-resistant composite beam structure provided by the present invention has the following beneficial effects:

[0028] Forming an integral composite beam improves the mechanical properties of the modular beams: When assembling the composite beam, the two floor beams and the two ceiling beams are positioned opposite each other, with the two ceiling beams correspondingly positioned at the bottoms of the two floor beams. Inter-beam connectors are positioned within the grouting cavities formed between the first floor beam and the second floor beam, and between the first ceiling beam and the second ceiling beam. These connectors are then connected to the concrete: the first floor beam and the second floor beam, the first ceiling beam and the second ceiling beam, the first floor beam and the first ceiling beam, and the second floor beam and the second ceiling beam. This achieves a continuous connection between the two floor beams and the two ceiling beams in the two horizontal modules, as well as between the floor beams and the ceiling beams in the upper and lower modules, forming an integral composite beam. This embodiment forms an integral composite beam structure with ceiling beams and floor beams acting in concert, effectively improving the overall stiffness and bearing capacity of the modular beams, fully utilizing the mechanical properties of the components, and increasing the effective utilization of materials.

[0029] Reducing material costs and increasing the effective usable area within the module: By forming a single composite beam with floor and ceiling beams, the overall cross-sectional height of the composite beam is increased, effectively improving the cross-sectional stiffness of the composite beam. While maintaining the original stiffness of the component, the cross-sectional dimensions of the modular seismic-resistant composite beam structure can be reduced accordingly. This allows the cross-sectional height of the floor and ceiling beams to be reduced, increasing the effective usable area within the module while maintaining the overall height of the modular building structure. This reduction in size also reduces the production cost of the beams, thereby reducing construction costs.

[0030] Independent adjustment of modular beam stiffness and load-bearing capacity: Upper and lower connectors installed between the ceiling and floor beams allow the previously separate ceiling and floor beams to be combined to form a coordinated, integrated composite beam structure. By varying the height of the upper and lower connectors, the height of the grouting cavity extending upward between the first and second floor beams can be adjusted, thereby adjusting the strength of the upper and lower connections and, consequently, the load-bearing capacity of the composite beam. When the connection strength reaches its limit, the connectors fail, separating the upper and lower modular beams and reducing the cross-sectional load-bearing capacity. This allows independent adjustment of the composite beam's load-bearing capacity while maintaining the same stiffness.

[0031] Improve the integrity, stability and seismic resistance of modular building structures: form an overall composite beam structure with coordinated force, increase the force transmission path of the modular building structure, reduce the force load on the connection nodes between columns and horizontal connecting plates, and achieve continuity between the floor slabs fixed by two adjacent beams, thereby improving the integrity and stability of the modular building structure. In particular, it can enhance the connection strength between horizontally adjacent modules and upper and lower modules to improve the seismic resistance of the modular building structure and meet the high performance requirements of high-rise modular integrated building structure systems.

[0032] Improved on-site construction efficiency: When used on-site, by pouring concrete into the grouting cavity formed between the first floor beam and the second floor beam and between the first ceiling beam and the second ceiling beam, the floor beams and ceiling beams arranged above and below can be connected in conjunction with the inter-beam connectors, realizing an integrated pouring operation and improving on-site construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A front view of the modular seismic-resistant composite beam structure of the present invention (the third reinforcement member and the fourth reinforcement member are not shown);

[0034] Figure 2 It is a three-dimensional schematic diagram of a modular seismic composite beam structure;

[0035] Figure 3 Schematic diagram of the decomposition of modular seismic composite beam structure.

[0036] Description of Reference Numerals

[0037] 1: First floor beam;

[0038] 2: Second floor beam;

[0039] 3: First ceiling beam;

[0040] 4: Second ceiling beam;

[0041] 51: first horizontal connecting member; 52: upper and lower connecting members; 53: second horizontal connecting member; 54: first reinforcement member; 55: second reinforcement member;

[0042] 6: bottom cover;

[0043] 7: column;

[0044] 8: Concrete. DETAILED DESCRIPTION

[0045] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below with reference to the accompanying drawings and through specific embodiments. Figure 1 The orientation is referenced.

[0046] Example 1

[0047] See also Figures 1 to 3 A modular seismic-resistant composite beam structure proposed in an embodiment of the present invention includes a first floor beam 1, a second floor beam 2, a first ceiling beam 3, a second ceiling beam 4 and beam connectors.

[0048] First floor beam 1 and second floor beam 2 are positioned opposite each other, while first ceiling beam 3 and second ceiling beam 4 are positioned opposite each other. First ceiling beam 3 and second ceiling beam 4 are positioned at the bottoms of first floor beam 1 and second floor beam 2, respectively. Grouting cavities are formed between first floor beam 1 and second floor beam 2, and between first ceiling beam 3 and second ceiling beam 4. Concrete is poured into the grouting cavities.

[0049] The inter-beam connector is arranged in the grouting cavity, and is used to connect the first floor beam 1 and the second floor beam 2, the first ceiling beam 3 and the second ceiling beam 4, the first floor beam 1 and the first ceiling beam 3, and the second floor beam 2 and the second ceiling beam 4.

[0050] The modular seismic-resistant composite beam structure provided in this embodiment has the following effects:

[0051] Forming an integrated composite beam structure and improving the mechanical properties of the modular beams: When assembling the composite beams, the two floor beams and the two ceiling beams are positioned opposite each other, with the two ceiling beams correspondingly positioned at the bottoms of the two floor beams. Inter-beam connectors are provided within the grouting cavities formed between the first floor beam 1 and the second floor beam 2, and between the first ceiling beam 3 and the second ceiling beam 4. The inter-beam connectors and concrete 8 connect the first floor beam 1 and the second floor beam 2, the first ceiling beam 3 and the second ceiling beam 4, the first floor beam 1 and the first ceiling beam 3, and the second floor beam 2 and the second ceiling beam 4, thereby achieving continuous connection of the two floor beams and the two ceiling beams in the two horizontal modules, as well as continuous connection of the floor beams and the ceiling beams in the upper and lower modules, forming an integrated composite beam. This embodiment transforms the upper and lower separated independent double beam structures into an integrated composite beam structure with ceiling beams and floor beams that synergistically bear the load, fully utilizing the mechanical properties of the components and improving the efficient utilization of materials.

[0052] Reducing material costs and increasing the effective usable area within the module: By forming a single composite beam with floor and ceiling beams, the overall cross-sectional height of the composite beam is increased, effectively improving the cross-sectional stiffness of the composite beam. While maintaining the stiffness of the original components, the cross-sectional dimensions of the modular seismic-resistant composite beam structure can be reduced accordingly. This allows the cross-sectional height of the floor and ceiling beams to be reduced, increasing the effective usable area within the module while maintaining the overall height of the modular building structure. This reduction in size also reduces beam production costs, thereby reducing construction costs.

[0053] Improve the integrity, stability and seismic resistance of modular building structures: form an overall composite beam structure with coordinated force, increase the force transmission path of the modular building structure, reduce the force load on the connection nodes between columns and horizontal connecting plates, and achieve continuity between the floor slabs fixed by two adjacent beams, thereby improving the integrity and stability of the modular building structure. In particular, it can enhance the connection strength between horizontally adjacent modules and upper and lower modules to improve the seismic resistance of the modular building structure and meet the high performance requirements of high-rise modular integrated building structure systems.

[0054] Improve on-site construction efficiency: When used on-site, by pouring concrete into the grouting cavity formed between the first floor beam 1 and the second floor beam 2 and between the first ceiling beam 3 and the second ceiling beam 4, the floor beams and ceiling beams arranged above and below can be connected in conjunction with the inter-beam connectors, realizing an integrated pouring operation and improving on-site construction efficiency.

[0055] Furthermore, the inter-beam connector includes a first horizontal connector 51 and upper and lower connectors 52 .

[0056] The first horizontal connectors 51 extend horizontally from the opposing side walls of the first and second floor beams 1 and 2, and the first and second ceiling beams 3 and 4, and are staggered. Thus, the first horizontal connectors 51 connect the two floor beams and the two ceiling beams through concrete poured between them, achieving a continuous connection between the two floor beams and the two ceiling beams in two horizontal modules, thereby achieving continuity between two horizontally adjacent floor slabs. Furthermore, the horizontally staggered overlap of the first horizontal connectors 51 offsets the lateral bending moments acting on the two floor beams and the two ceiling beams, respectively, ensuring the lateral stiffness of the modular seismic composite beam structure and, consequently, the overall lateral stiffness of the modular building structure. They also ensure the horizontal connection strength between the two floor beams and the two ceiling beams, preventing separation when subjected to horizontal tensile forces.

[0057] Upper and lower connectors 52 are installed at the tops of first ceiling beams 3 and second ceiling beams 4 and extend upward into the grouting cavity between first floor beams 1 and second floor beams 2. The upper and lower connectors 52, combined with the concrete poured between the floor and ceiling beams, connect the upper and lower opposing floor and ceiling beams. This allows the previously separate ceiling and floor beams to be combined to form a synergistically stressed, integrated composite beam structure. This ensures the connection strength between the upper and lower floor and ceiling beams, preventing separation when subjected to vertical tension and horizontal separation when subjected to lateral bending moments. This ensures the lateral stiffness between the floor and ceiling beams, and thus the overall lateral stiffness of the modular building structure.

[0058] Specifically, to achieve the connection of the upper and lower connecting members 52 to the corresponding upper and lower floor beams and ceiling beams:

[0059] The bottom width of the first floor beam 1 is smaller than the top width of the first ceiling beam 3, and the bottom width of the second floor beam 2 is smaller than the top width of the second ceiling beam 4, so that the upper and lower connecting pieces 52 fixed on the tops of the first ceiling beam 3 and the second ceiling beam 4 can extend upward to the grouting cavity between the first floor beam 1 and the second floor beam 2.

[0060] Preferably, the height of the upper and lower connecting members 52 is adjustable to achieve independent adjustment of the module beam stiffness and bearing capacity:

[0061] By varying the height of the upper and lower connectors 52, the height of the grouting cavity between the first and second floor beams 1 and 2 can be adjusted, thereby adjusting the upper and lower connection strength of the composite beam structure and, consequently, the load-bearing capacity of the composite beam. When the connection strength reaches its limit, the connector fails, the upper and lower modular beams separate, and the cross-sectional load-bearing capacity of the beam decreases. Therefore, the load-bearing capacity of the composite beam can be independently adjusted without changing the rigidity.

[0062] During actual processing, the upper and lower connecting members 52 of different lengths can be replaced to adjust the length thereof.

[0063] Preferably, in order to further improve the bearing strength of the modular seismic-resistant composite beam structure, the modular seismic-resistant composite beam structure further includes a second horizontal connecting member 53 .

[0064] The second horizontal connecting member 53 is fixed on the column 7 and extends horizontally to the grouting cavity, and is used to connect the first floor beam 1, the second floor beam 2, the first ceiling beam 3 and the second ceiling beam 4 to the column 7, so as to improve the connection strength between the floor beams and the ceiling beams and the column 7 respectively, thereby improving the bearing strength of the modular seismic composite beam structure and improving the overall stability and seismic resistance of the modular building structure.

[0065] Preferably, in order to further improve the bonding strength between the floor beams and the ceiling beams and the concrete in the grouting cavity, the modular seismic composite beam structure further includes a first reinforcement member 54 and a second reinforcement member 55:

[0066] The first reinforcement 54 is fixed to the inner side of the top of the first floor beam 1 and the second floor beam 2 and extends downward to improve the adhesion between the floor beam and the concrete inside, thereby increasing the bearing strength of the floor beam and effectively preventing premature buckling of the top of the floor beam when bearing loads, so that the floor beam and ceiling beam can work fully together.

[0067] The second reinforcement 55 is fixed to the inner side of the bottom of the first ceiling beam 3 and the second ceiling beam 4 and extends upward to improve the bonding force between the ceiling beam and the concrete inside, thereby improving the bearing strength of the ceiling beam.

[0068] In this way, the bearing strength of the modular seismic-resistant composite beam structure can be further improved.

[0069] More preferably, in order to further improve the bonding strength between the floor beams and the ceiling beams and the concrete in the grouting cavity, the modular seismic composite beam structure further includes a third reinforcement member and a fourth reinforcement member:

[0070] The third reinforcement is fixed to the top of the inner side of the bottom of the first floor beam 1 and the second floor beam 2 and extends upward to improve the bonding force between the floor beam and the concrete inside, thereby improving the bearing strength of the floor beam.

[0071] The fourth reinforcement is fixed to the inner side of the top of the first ceiling beam 3 and the second ceiling beam 4 and extends downward to improve the bonding strength between the ceiling beam and the concrete inside, thereby improving the bearing strength of the ceiling beam.

[0072] In this way, the bearing strength of the modular seismic-resistant composite beam structure can be further improved.

[0073] Optionally, the first horizontal connecting member 51, the upper and lower connecting members 52, the second horizontal connecting member 53, the first reinforcement member 54, the second reinforcement member 55, the third reinforcement member and the fourth reinforcement member can all be steel bars, bolts, hooks and other components that can be fixed on the floor beams and ceiling beams and cast in concrete.

[0074] Preferably, the first horizontal connecting member 51 and the upper and lower connecting members 52 are all bolts, the rods of the bolts are fixed on the corresponding ceiling beams and floor beams, and the heads of the bolts can be cast in the concrete in the grouting cavity to increase their contact area with the concrete and increase the bonding strength with the concrete, thereby improving the bonding strength between the ceiling beams and the bottom plate beams and the internal concrete, thereby improving the bearing strength of the modular seismic composite beam structure.

[0075] Preferably, in order to further improve the bonding strength between the floor beams and ceiling beams and the concrete in the grouting cavity, the modular seismic composite beam structure further has the following configurations:

[0076] The first horizontal connecting member 51 includes a plurality of first horizontal members arranged at horizontal intervals, the upper and lower connecting members 52 include a plurality of connecting members arranged at horizontal intervals, the second horizontal connecting member includes a plurality of second horizontal members arranged at vertical intervals, and the first reinforcement member 54, the second reinforcement member 55, the third reinforcement member and the fourth reinforcement member each include a plurality of reinforcement members arranged at horizontal intervals.

[0077] Therefore, by increasing the number of the above-mentioned connecting members and reinforcing members, the bonding strength between the floor beams and ceiling beams and the concrete in the grouting cavity can be improved, thereby increasing the bearing strength of the modular seismic-resistant composite beam structure and further improving the overall stability and seismic resistance of the modular building structure.

[0078] Optionally, the ends of the first horizontal connector 51, upper and lower connectors 52, first reinforcement 54, second reinforcement 55, third reinforcement, and fourth reinforcement are welded to the corresponding floor beams and ceiling beams for ease of fabrication. The end of the second horizontal connector 53 is welded to the column 7 for ease of fabrication.

[0079] Furthermore, a bottom cover plate 6 is provided between the first ceiling beam 3 and the second ceiling beam 4 to close the bottom gap therebetween.

[0080] During on-site construction, after the first floor beam 1, the second floor beam 2, the first ceiling beam 3 and the second ceiling beam 4 are assembled, the bottom sealing plate 6 is placed in the bottom gap between the first ceiling beam 3 and the second ceiling beam 4, and then concrete is poured into the grouting cavity from the top gap between the first floor beam 1 and the second floor beam 2 to prevent the concrete from overflowing from the bottom gap between the two ceiling beams, thereby facilitating engineering construction.

[0081] Optionally, the bottom cover plate 6 is a plate made of other materials such as a steel plate.

[0082] Preferably, in order to reduce costs, the modular seismic composite beam structure further has the following configurations:

[0083] The first floor beam 1 , the second floor beam 2 , the first ceiling beam 3 , and the second ceiling beam 4 all have a C-shape in cross section.

[0084] Since the first floor beam 1, the second floor beam 2, the first ceiling beam 3 and the second ceiling beam 4 can be combined into an integral modular seismic composite beam structure, it has a higher load-bearing capacity and seismic performance, which is superior to the traditional single-set pure concrete beam or pure steel tube beam. Compared with the traditional steel modular beam with a square cross-section, the modular seismic composite beam structure uses a beam with a C-shaped cross-section, which can save steel and reduce the cost of the beam, thereby reducing the construction cost of the modular building structure.

[0085] During on-site assembly, the openings of the first floor beam 1 and the second floor beam 2 are arranged opposite to each other, and the openings of the first ceiling beam 3 and the second ceiling beam 4 are arranged opposite to each other, and the first ceiling beam 3 and the second ceiling beam 4 are arranged correspondingly at the bottom of the first floor beam 1 and the second floor beam 2, and the gap between the first floor beam 1 and the second floor beam 2 and the gap between the first ceiling beam 3 and the second ceiling beam 4 are connected from top to bottom to form a grouting cavity.

[0086] Specifically, when the cross-sections of the first floor beam 1, the second floor beam 2, the first ceiling beam 3 and the second ceiling beam 4 are all C-shaped, the opposite side walls of the first floor beam 1 and the second floor beam 2 refer to the webs of the beams, the top refers to the upper wing plates of the beams, and the bottom refers to the lower wing plates of the beams.

[0087] Example 2

[0088] This embodiment further provides a modular building structure based on embodiment 1. The modular building structure includes a modular earthquake-resistant composite beam structure and columns 7 .

[0089] The modular seismic composite beam structure at the connection of the upper and lower four modules is set as follows:

[0090] One end of the first floor beam 1 and the second floor beam 2 in the length direction is fixed one-to-one to two horizontally adjacent columns 7 located above, and one end of the first ceiling beam 3 and the second ceiling beam 4 in the length direction is fixed one-to-one to two horizontally adjacent columns 7 located below, so that when splicing the connection points of the four adjacent upper and lower modules, the four columns 7 on the four adjacent upper and lower modules can be spliced ​​at the same time, and the first floor beam 1, the second floor beam 2, the first ceiling beam 3 and the second ceiling beam 4 can be spliced ​​into a modular seismic composite beam structure to connect the connection points of the four adjacent upper and lower modules.

[0091] The modular seismic composite beam structure at the connection between the upper and lower modules is set up as follows:

[0092] One end of the first floor beam 1 and the second floor beam 2 in the length direction is fixed to the same column 7 located above, and one end of the first ceiling beam 3 and the second ceiling beam 4 in the length direction is fixed to the same column 7 located below, so that when splicing the connection between the upper and lower modules, the two columns 7 on the upper and lower modules can be spliced ​​up and down, and the first floor beam 1, the second floor beam 2, the first ceiling beam 3 and the second ceiling beam 4 can be spliced ​​into a modular seismic composite beam structure to connect the connection between the upper and lower modules.

[0093] Optionally, both the floor beams and the ceiling beams are welded to the columns 7 to facilitate construction.

[0094] To further explain, here are the steps for constructing a modular building structure:

[0095] S1. During processing, the inter-beam connectors are set on the first floor beam 1, the second floor beam 2, the first ceiling beam 3 and the second ceiling beam 4.

[0096] Fix one end of the first floor beam 1 and the second floor beam 2 in the length direction to two horizontally adjacent columns 7 located above in a one-to-one correspondence; or, fix one end of the first floor beam 1 and the second floor beam 2 in the length direction to the same column 7 located above, and fix one end of the first ceiling beam 3 and the second ceiling beam 4 in the length direction to the same column 7 located below.

[0097] S2. When assembling modules on site, after the four columns 7 at the connection of four adjacent modules are spliced ​​together, or after the two columns 7 at the connection of two modules are spliced ​​together, the first floor beam 1 and the second floor beam 2 can be arranged relative to each other, and the first ceiling beam 3 and the second ceiling beam 4 can be arranged relative to each other, and the top of the first ceiling beam 3 can be in contact with the bottom of the first floor beam 1, and the top of the second ceiling beam 4 can be in contact with the bottom of the second floor beam 2.

[0098] S3. Concrete 8 is poured into the grouting cavity formed between the first floor beam 1 and the second floor beam 2 and between the first ceiling beam 3 and the second ceiling beam 4. The inter-beam connecting parts and the concrete 8 in the grouting cavity connect the first floor beam 1 and the second floor beam 2, the first ceiling beam 3 and the second ceiling beam 4, the first floor beam 1 and the first ceiling beam 3, and the second floor beam 2 and the second ceiling beam 4 to form an overall modular seismic-resistant composite beam structure, and then form a modular building structure.

[0099] As a result, the modular building structure can be assembled conveniently, improving construction efficiency.

[0100] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, removable connections, or integration. They may refer to mechanical connections or electrical connections. They may refer to direct connections or indirect connections through an intermediary. They may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0101] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0102] In the description of this specification, the terms "one embodiment", "some embodiments", "embodiments", "examples", "specific examples" or "some examples" refer to the specific features, structures, materials or characteristics described in conjunction with the embodiment or example and included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0103] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A modular composite beam structure, characterized in that: It comprises a first floor beam (1), a second floor beam (2), a first ceiling beam (3), a second ceiling beam (4), and inter-beam connectors; The first floor beam (1) and the second floor beam (2) are arranged opposite to each other, and the first ceiling beam (3) and the second ceiling beam (4) are arranged opposite to each other; the first ceiling beam (3) and the second ceiling beam (4) are correspondingly attached to the bottoms of the first floor beam (1) and the second floor beam (2); an integrally cast grouting cavity is formed between the first floor beam (1) and the second floor beam (2) and between the first ceiling beam (3) and the second ceiling beam (4); The inter-beam connector is arranged in the grouting cavity, and the first floor beam (1) and the second floor beam (2), the first ceiling beam (3) and the second ceiling beam (4), the first floor beam (1) and the first ceiling beam (3), and the second floor beam (2) and the second ceiling beam (4) are connected by the inter-beam connector and the concrete (8) in the grouting cavity; The inter-beam connecting member comprises: First horizontal connecting members (51) extend horizontally from opposite side walls of the first floor beam (1) and the second floor beam (2), and the first ceiling beam (3) and the second ceiling beam (4), and are staggered with each other; Upper and lower connecting members (52) are arranged on the top of the first ceiling beam (3) and the second ceiling beam (4), and extend upward to the grouting cavity between the first floor beam (1) and the second floor beam (2), and the height of the upper and lower connecting members (52) extending upward to the grouting cavity between the first floor beam (1) and the second floor beam (2) is adjustable so as to independently adjust the bearing capacity of the composite beam under the premise of unchanged stiffness; the bottom width of the first floor beam (1) is smaller than the top width of the first ceiling beam (3), and the bottom width of the second floor beam (2) is smaller than the top width of the second ceiling beam (4).

2. The modular composite beam structure according to claim 1, wherein: It also includes a second horizontal connecting member (53) fixed to the column (7) and extending horizontally to the grouting cavity, and used for connecting the first floor beam (1), the second floor beam (2), the first ceiling beam (3) and the second ceiling beam (4) to the column (7).

3. The modular composite beam structure according to claim 1, wherein: A bottom cover plate (6) is provided between the first ceiling beam (3) and the second ceiling beam (4) to close the bottom gap therebetween.

4. The modular composite beam structure according to claim 1, wherein: The cross-sections of the first floor beam (1), the second floor beam (2), the first ceiling beam (3) and the second ceiling beam (4) are all C-shaped.

5. The modular composite beam structure according to claim 1, wherein: It also includes: a first reinforcement member (54) fixed to the inner side of the top of the first floor beam (1) and the second floor beam (2) and extending downward, and a second reinforcement member (55) fixed to the inner side of the bottom of the first ceiling beam (3) and the second ceiling beam (4) and extending upward; or, The invention also includes: a first reinforcement member (54) fixed to the inner side of the top of the first floor beam (1) and the second floor beam (2) and extending downward, a second reinforcement member (55) fixed to the inner side of the bottom of the first ceiling beam (3) and the second ceiling beam (4) and extending upward, a third reinforcement member fixed to the top of the inner side of the bottom of the first floor beam (1) and the second floor beam (2) and extending upward, and a fourth reinforcement member fixed to the inner side of the top of the first ceiling beam (3) and the second ceiling beam (4) and extending downward.

6. A modular building structure comprising the modular composite beam structure according to any one of claims 1 to 5, characterized in that: Also included is a column (7); One end of the first floor beam (1) and the second floor beam (2) in the length direction is fixed to two horizontally adjacent columns (7) located above, and one end of the first ceiling beam (3) and the second ceiling beam (4) in the length direction is fixed to two horizontally adjacent columns (7) located below, so as to connect four upper and lower adjacent modules; or, One end of the first floor beam (1) and the second floor beam (2) in the length direction is fixed to the same column (7) located above, and one end of the first ceiling beam (3) and the second ceiling beam (4) in the length direction is fixed to the same column (7) located below, so as to connect two adjacent modules above and below.

7. A construction method, applied to the modular building structure according to claim 6, characterized in that: The construction method comprises the following steps: S1. During processing, the inter-beam connecting member is arranged on the first floor beam (1), the second floor beam (2), the first ceiling beam (3) and the second ceiling beam (4); One end of the first floor beam (1) and the second floor beam (2) in the length direction is fixed to two horizontally adjacent columns (7) located above in a one-to-one correspondence; or, one end of the first floor beam (1) and the second floor beam (2) in the length direction is fixed to the same column (7) located above, and one end of the first ceiling beam (3) and the second ceiling beam (4) in the length direction is fixed to the same column (7) located below; S2. When assembling the module on site, the first floor beam (1) and the second floor beam (2) are arranged relative to each other, and the first ceiling beam (3) and the second ceiling beam (4) are arranged relative to each other, and the top of the first ceiling beam (3) is attached to the bottom of the first floor beam (1), and the top of the second ceiling beam (4) is attached to the bottom of the second floor beam (2); S3. Concrete (8) is poured into the grouting cavity formed between the first floor beam (1) and the second floor beam (2) and between the first ceiling beam (3) and the second ceiling beam (4); the inter-beam connector and the concrete (8) connect the first floor beam (1) and the second floor beam (2), the first ceiling beam (3) and the second ceiling beam (4), the first floor beam (1) and the first ceiling beam (3), and the second floor beam (2) and the second ceiling beam (4) to form an integral modular seismic composite beam structure, thereby forming a modular building structure.

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