An assembled lattice composite beam adopting a series-parallel bidirectional combination form

Abstract

The present invention belongs to the field of building technology, and particularly relates to a prefabricated lattice composite beam adopting a series-parallel bidirectional combination form. The prefabricated lattice composite beam adopting the series-parallel bidirectional combination form of the present invention comprises a plurality of beam units combined together. The beam unit includes a beam frame, a first connecting member and a second connecting member. The first connecting member is used for connecting two beam frames in a first direction so that two adjacent first connecting surfaces are attached, and the second connecting member is used for connecting two beam frames in a second direction so that two adjacent second connecting surfaces are attached. In use, by flexibly connecting a plurality of beam units along the length extension direction and the width extension direction, assembled beams with different sizes and different load-bearing capacities can be formed, so as to meet different usage requirements, with a wide application range and being easy to mass-produce and promote.

Description

Technical Field

[0001] The present invention belongs to the field of building technology, and particularly relates to a prefabricated lattice composite beam adopting a series-parallel bidirectional combination form. Background Art

[0002] Building energy consumption accounts for more than one-third of the total social energy consumption in China and is increasing year by year. Among them, the "contribution rate" of greenhouse gas emissions across the country due to the increase in building energy use has reached as high as 25%. In addition, a large number of buildings in China are high-energy-consuming buildings. Affected by a large number of high-energy-consuming buildings, the annual coal consumption in the northern heating areas of China increases by an additional 18 million tons, causing a direct economic loss of up to 7 billion yuan and resulting in an additional emission of 520,000 tons of greenhouse gases such as carbon dioxide.

[0003] Regarding building energy conservation and emission reduction, the conventional practice is to use thermal insulation wall panels. However, the beam structure lapped above the wall panels still uses ordinary concrete structure beams, resulting in a large difference in thermal conductivity from the wall. This not only creates a gap in building insulation but also causes problems such as the thermal bridge effect, increasing building energy consumption and making it prone to condensation of water droplets, reducing the durability of the building structure. On the one hand, the energy consumption for the production of building materials in traditional buildings is relatively high. On the other hand, due to the on-site operation of traditional buildings, a large amount of dust is easily generated, which not only damages air quality but is also susceptible to seasonal influences, prolonging the construction period.

[0004] With the development of technology, a large number of prefabricated buildings have emerged. Prefabricated buildings can significantly improve the construction environment, reduce construction pollution, and shorten the construction period. In addition, factory-standardized precast components can significantly reduce production energy consumption. The "14th Five-Year Plan for the Development of the Construction Industry" clearly puts forward vigorously developing prefabricated buildings, building a standardized design and production system for prefabricated buildings, promoting the intelligent upgrading of production and construction, expanding the use scale of standardized components and parts, and improving the comprehensive benefits of prefabricated buildings.

[0005] In actual production operations, the use of assembled beams is relatively common. However, the bearing capacity of the assembled beams in the prior art is constant and needs to be adjusted according to engineering requirements, making it difficult to mass-produce and promote, with a relatively small scope of application. Summary of the Invention

[0006] Based on this, it is necessary to provide a prefabricated lattice composite beam adopting a series-parallel bidirectional combination

[0007] form to solve the problem of the relatively small scope of application of the assembled beams in the prior art.

[0008] The above object is achieved by the following technical solutions: A prefabricated lattice composite beam adopting a series-parallel bidirectional combination form, including a plurality of beam units combined together, and the beam unit includes:

[0009] The beam frame has a first connection surface and a second connection surface. The first connection surface is used to fit with the first connection surface on the beam frame of an adjacent beam unit in the first direction, and the second connection surface is used to fit with the second connection surface on the beam frame of an adjacent beam unit in the second direction;

[0010] The first connecting piece is used to connect the beam frames of two adjacent beam units in the first direction so that the two adjacent first connection surfaces fit together;

[0011] The second connecting piece is used to connect the beam frames of two adjacent beam units in the second direction so that the two adjacent second connection surfaces fit together.

[0012] Furthermore, the beam frame includes a first plate body arranged in the up-and-down direction and a second plate body arranged in the horizontal direction. The first connection surface is arranged on the first plate body, and mounting holes for mounting the first connecting piece are arranged on the first plate body. The second connection surface is arranged on the second plate body, and mounting grooves for mounting the second connecting piece are arranged on the second plate body.

[0013] Furthermore, the second connecting piece includes a fixing plate and a connecting block arranged on the fixing plate. The connecting block is used to be clamped in the cavity formed by two adjacent mounting grooves to prevent the two adjacent second plate bodies from moving away from each other, and the fixing plate is used to fix the second connecting piece on the second plate body.

[0014] Furthermore, the mounting groove is a dovetail groove, and both ends of the connecting block are dovetail-shaped to be adapted to the dovetail groove.

[0015] Furthermore, the beam frame further includes a third plate body and a third connecting piece. There are two first plate bodies. The third plate body and the second plate body are arranged at intervals in the up-and-down direction and are both fixedly connected to the two first plate bodies at the same time. The third connecting piece is used to connect the third plate bodies of two adjacent beam frames in the first direction.

[0016] Furthermore, the third connecting piece is a connecting rod, and both ends of the connecting rod are used to be fixedly connected to two adjacent third plate bodies respectively.

[0017] Furthermore, the third plate body is located above the second plate body, and the size of the second plate body in the second direction is larger than the size of the third plate body in the second direction, so that there is a gap between two adjacent third plate bodies after the two adjacent second connection surfaces fit together.

[0018] Furthermore, the beam frame further includes a fourth plate body fixedly supported between the second plate body and the third plate body. The fourth plate body extends in the up-and-down direction, and both ends of the fourth plate body are fixedly connected to the second plate body and the third plate body respectively.

[0019] Furthermore, shear-resistant connecting pieces are fixedly arranged on the second plate body, the third plate body and the fourth plate body.

[0020] Further, the first connecting member is a connecting bolt.

[0021] The beneficial effects of the present invention are as follows: The prefabricated lattice composite beam with a series-parallel bidirectional combination form of the present invention includes multiple beam units combined together. The beam unit includes a beam frame, a first connecting member, and a second connecting member. The first direction refers to the length extension direction of the beam frame, and the second direction refers to the width extension direction of the beam frame. The first connecting member can connect the beam frames of two adjacent beam units together in the length extension direction of the beam frame, so that two adjacent first connecting surfaces are in contact. According to the required size, multiple beam frames can be connected in sequence along the length extension direction of the beam frame. The second connecting member can connect the beam frames of two adjacent beam units together in the width extension direction of the beam frame, so that two adjacent second connecting surfaces are in contact. According to the required flexural bearing capacity, multiple beam frames can be connected in sequence along the width extension direction of the beam frame. By flexibly connecting multiple beam units along the length extension direction and the width extension direction, assembled beams with different sizes and different bearing capacities can be formed, so as to meet different usage requirements, with a wide range of applications and being easy to mass-produce and promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a beam unit of an embodiment of the prefabricated lattice composite beam with a series-parallel bidirectional combination form of the present invention;

[0023] Figure 2 is Figure 1 a schematic diagram of the state when multiple beam frames in

[0024] Figure 3 is Figure 1 a schematic structural diagram of multiple single-column beams formed by multiple beam units in

[0025] Figure 4 is Figure 1 a schematic structural diagram of the second connecting member in

[0026] Figure 5 is Figure 1 a schematic structural diagram of the connecting rod in

[0027] Figure 6 is Figure 1 a schematic structural diagram of an assembled beam formed by multiple prefabricated lattice composite beams with a series-parallel bidirectional combination form in

[0028] Figure 7 is Figure 6 a schematic structural diagram of the beam body formed after pouring concrete filler into the assembled beam in

[0029] Wherein:

[0030] 1. Beam truss; 2. Second connecting piece; 3. Connecting rod; 4. Connecting bolt; 5. Concrete filler; 6. Third plate body; 7. Second plate body; 8. Fourth plate body; 9. Shear stud; 10. Dovetail groove; 11. First plate body; 12. Fixed plate; 13. Connecting block. Specific embodiments

[0031] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] The serial numbers assigned to the components in this article, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The terms "connection" and "coupling" used in this application, unless otherwise specified, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention.

[0033] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0034] Next, refer to Figures 1 to 7 , and describe an assembled lattice composite beam adopting a series-parallel bidirectional combination form provided by an embodiment of the present invention.

[0035] The fabricated lattice composite beam with a series - parallel bidirectional combination form in this embodiment includes multiple beam units combined together. The beam unit includes a beam frame 1, a first connecting piece, and a second connecting piece 2. The beam frame 1 has a first connecting surface and a second connecting surface. The first connecting surface is used to fit with the first connecting surface on the beam frame 1 of an adjacent beam unit in the first direction, and the second connecting surface is used to fit with the second connecting surface on the beam frame 1 of an adjacent beam unit in the second direction. Among them, the first direction refers to the length extension direction of the beam frame 1, and the second direction refers to the width extension direction of the beam frame 1. The first connecting piece can connect the beam frames 1 of two adjacent beam units together in the length extension direction of the beam frame 1, so that two adjacent first connecting surfaces are in contact. According to the required size, multiple beam frames 1 can be connected in sequence along the length extension direction of the beam frame 1. The second connecting piece 2 can connect the beam frames 1 of two adjacent beam units together in the width extension direction of the beam frame 1, so that two adjacent second connecting surfaces are in contact. According to the required flexural bearing capacity, multiple beam frames 1 can be connected in sequence along the width extension direction of the beam frame 1. By flexibly connecting multiple beam units in the length extension direction and the width extension direction, assembled beams with different sizes and different load - bearing capacities can be formed, thus meeting different usage requirements, having a wide range of applications, and being easy to mass - produce and promote.

[0036] In one of the embodiments, the beam frame 1 includes a first plate body 11 arranged in the up - down direction and a second plate body 7 arranged in the horizontal direction. The first connecting surface is arranged on the first plate body 11. There are multiple mounting holes for installing the first connecting piece on the first plate body 11, and they are distributed from top to bottom on the first plate body 11. During use, the first connecting piece is installed in the mounting holes to firmly fix and connect two adjacent beam frames 1 along the length direction of the beam frame 1. In this embodiment, the first connecting piece is a connecting bolt 4. The second connecting surface is arranged on the second plate body 7. There is a mounting groove for installing the second connecting piece 2 on the second plate body 7. During use, the second connecting piece 2 can cooperate with the cavity formed by two adjacent mounting grooves to connect the two second plate bodies 7, and further firmly fix and connect two adjacent beam frames 1 along the width direction of the beam frame 1, thereby improving the flexural bearing capacity of the formed assembled beam.

[0037] In one embodiment, the second connecting member 2 includes a fixing plate 12 and a connecting block 13 provided on the fixing plate 12. The shape of the connecting block 13 is adapted to the cavity formed by two adjacent mounting grooves, so that the connecting block 13 can be clamped in the cavity. A connecting hole is provided on the fixing plate 12, and the fixing plate 12 can be fixed on the second plate body 7 through a connecting bolt 4, and then the second connecting member 2 is fixed on the second plate body 7. In this embodiment, the mounting groove is a through groove, and the fixing plate 12 can be lapped on the second plate body 7 to fix the second connecting member 2 on the second plate body 7. In other embodiments, the mounting groove can be a counterbore, and a connecting hole is provided at the bottom of the counterbore. The second connecting member only includes a connecting block, and the connecting block can be fixed in the counterbore through a connecting bolt.

[0038] Further, in one embodiment, the mounting groove is a dovetail groove 10. Two sets of dovetail grooves 10 with opposite openings are provided on the second plate body 7. The number of each set of dovetail grooves 10 is determined according to actual needs. In this embodiment, each set of dovetail grooves 10 has two. Both ends of the connecting block 13 are dovetail-shaped adapted to the dovetail groove 10. When the second connecting surfaces of the two beam frames 1 are attached together, the two dovetail grooves 10 enclose a cavity, and the connecting block 13 is inserted into the cavity, which can prevent the two beam frames 1 from moving away from each other in the width direction. In other embodiments, the mounting groove is a "convex"-shaped groove, which has a large-size groove section and a small-size groove section. The opening of the small-size groove section is provided on the second connecting surface, and both ends of the connecting block are convex blocks adapted to the shape of the mounting groove.

[0039] In one embodiment, the beam frame 1 further includes a third plate body 6 and a third connecting member. There are two first plate bodies 11. The third plate body 6 and the second plate body 7 are arranged at intervals in the up-down direction. The lower ends of the two first plate bodies 11 are respectively fixedly connected to the two ends of the second plate body 7, and the upper ends of the two first plate bodies 11 are respectively fixedly connected to the two ends of the third plate body 6. The third connecting member is used to connect the adjacent third plate bodies 6 of the two beam frames 1 in the first direction, so that the third plate body 6 is not easily unstable and the structure of the formed assembled beam is more stable.

[0040] In one embodiment, the third connecting member is a connecting rod 3. Connecting holes are provided at both ends of the connecting rod 3, so that the connecting rod 3 can be fixedly connected to two adjacent third plate bodies 6 through connecting bolts 4 respectively. A counterbore extending along the width direction of the beam frame 1 to accommodate the connecting rod 3 is provided on the upper surface of the third plate body 6, and a connecting hole is also provided at the bottom of the counterbore. During use, both ends of the connecting rod 3 are respectively placed in the counterbore, and then the connecting rod 3 is fixedly connected to the third plate body 6 by using the connecting bolt 4. Due to the existence of the counterbore, after the connecting rod 3 is fixed on the third plate body 6, the upper surface of the third plate body 6 can be relatively flat.

[0041] In one embodiment, the third plate body 6 is located above the second plate body 7, and the dimension of the second plate body 7 in the second direction is greater than the dimension of the third plate body 6 in the second direction. In this embodiment, the shapes of the two first plate bodies 11 are isosceles trapezoids. When the two beam frames 1 are connected together in the width direction and the adjacent second connecting surfaces are in contact, there is a gap between the adjacent third plate bodies 6. The existence of this gap can facilitate the entry of concrete into the cavity in the beam frame 1, thereby improving the efficiency of pouring concrete. In other embodiments, the shape of the first plate body can also be a right trapezoid. Of course, it can also be a stepped shape with a narrow upper part and a wide lower part, as long as a gap can be formed between the adjacent third plate bodies.

[0042] In one embodiment, the beam frame 1 further includes a fourth plate body 8 fixedly supported between the second plate body 7 and the third plate body 6. The fourth plate body 8 extends in the up-down direction, and both ends of the fourth plate body 8 are fixedly connected to the second plate body 7 and the third plate body 6 respectively. The fourth plate body 8 can improve the shear bearing capacity of the beam frame 1. The beam frame 1 further includes two U-shaped support rib plates with opposite openings. The two end parts at the openings of the support rib plates are fixedly connected to the fourth plate body 8, and the three outer side surfaces of the support rib plates are simultaneously fixedly connected to the first plate body 11, the second plate body 7 and the third plate body 6. The setting of the support rib plates can further provide the shear bearing capacity of the beam frame 1.

[0043] In one embodiment, in order to enable the retardant soil layer to be effectively bonded to the beam frame 1 and ensure the effective co-action between the concrete layer and the beam frame 1, shear connectors are fixedly arranged on the second plate body 7, the third plate body 6 and the fourth plate body 8. In this embodiment, the shear connector is a shear stud 9. In other embodiments, the shear connector can be a channel steel connector, a square steel connector or a T-shaped steel connector.

[0044] During installation, first, according to the required length dimension of the assembled beam, as Figure 2 shown, a plurality of beam frames 1 are arranged in sequence along the length direction of the beam frame 1, and then as Figure 3 shown, the beam frames 1 of multiple beam units are sequentially connected by connecting bolts 4 to form a single-row beam.

[0045] Then, according to the required flexural bearing capacity of the assembled beam, along the width direction of the beam frame 1, the required number of single-row beams are arranged in sequence, so that the dovetail grooves 10 of the adjacent two beam frames 1 enclose a cavity. Then, the connecting block 13 of the second connector 2 is snapped into the cavity, and the fixing plate 12 is fixed on the second plate body 7 with the connecting bolt 4, thereby fixing the second connector 2 on the second plate body 7.

[0046] To prevent the third plate body 6 from buckling, both ends of the connecting rod 3 are placed in the sunk grooves respectively, and then the connecting rod 3 is fixedly connected to the third plate body 6 with the connecting bolt 4, thus completing the assembly of the assembled beam.

[0047] Finally, a formwork and a support plate are fixedly arranged on the outer side of the assembled beam, so as to form a casting cavity inside the formwork. Then, a concrete filler 5 is injected into the casting cavity. The concrete filler 5 is composed of concrete with a ceramsite replacement rate of 15% and chopped alkali-resistant glass fibers. After the injection of the concrete filler 5 is completed, it is cured. After the curing is completed, the formwork is removed, and a beam body that can be put into use can be formed.

[0048] For the beam body formed by combining the prefabricated lattice composite beam with a series-parallel bidirectional combination form of the present invention and the above-mentioned concrete filler, since the ceramsite concrete has good heat insulation performance, the beam body has good heat insulation performance, can reduce building energy consumption. The use of shear connectors ensures the anti-cracking performance of the beam body and solves the problems of cold bridges that are likely to occur in part of the beam body and corrosion due to cracking. Also, by flexibly connecting multiple beam units along the length extension direction and the width extension direction, assembled beams with different sizes and different load-bearing capacities can be formed. Therefore, different usage requirements can be met, the applicable range is relatively wide, and it is easy to mass-produce and promote.

[0049] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0050] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent of the present invention should be subject to the appended claims.

Claims

1. An assembled lattice composite beam adopting a series-parallel bidirectional combination form, characterized in that, Comprising a plurality of beam units combined together, the beam units including: A beam frame having a first connection surface and a second connection surface, the first connection surface being used to fit with the first connection surface on the beam frame of an adjacent beam unit in a first direction, and the second connection surface being used to fit with the second connection surface on the beam frame of an adjacent beam unit in a second direction; A first connecting member for connecting the beam frames of two adjacent beam units in the first direction so that two adjacent first connection surfaces fit together; A second connecting member for connecting the beam frames of two adjacent beam units in the second direction so that two adjacent second connection surfaces fit together; The beam frame includes a first plate body arranged in the up-and-down direction and a second plate body arranged in the horizontal direction. The first connection surface is arranged on the first plate body, and mounting holes for mounting the first connecting member are arranged on the first plate body. The second connection surface is arranged on the second plate body, and mounting grooves for mounting the second connecting member are arranged on the second plate body.

2. The fabricated lattice composite beam adopting a series-parallel bidirectional combination form according to claim 1, characterized in that, The second connecting member includes a fixing plate and a connecting block arranged on the fixing plate. The connecting block is used to be clamped in the cavity formed by two adjacent mounting grooves to prevent two adjacent second plate bodies from moving away from each other, and the fixing plate is used to fix the second connecting member on the second plate body.

3. The prefabricated lattice composite beam adopting a series-parallel bidirectional combination form according to claim 2, wherein The mounting groove is a dovetail groove, and both ends of the connecting block are dovetail-shaped adapted to the dovetail groove.

4. The prefabricated lattice composite beam adopting a series-parallel bidirectional combination form according to claim 1, wherein, The beam frame further includes a third plate body and a third connecting member. There are two first plate bodies. The third plate body and the second plate body are arranged at intervals in the up-and-down direction and are both fixedly connected to the two first plate bodies at the same time. The third connecting member is used to connect the third plate bodies of two adjacent beam frames in the first direction.

5. The fabricated lattice composite beam adopting a series-parallel bidirectional combination form according to claim 4, characterized in that, The third connecting member is a connecting rod, and both ends of the connecting rod are used to be fixedly connected to two adjacent third plate bodies respectively.

6. The prefabricated lattice composite beam adopting a series-parallel bidirectional combination form according to claim 4, wherein The third plate body is located above the second plate body, and the dimension of the second plate body in the second direction is larger than the dimension of the third plate body in the second direction, so that there is a gap between two adjacent third plate bodies after two adjacent second connection surfaces fit together.

7. The fabricated lattice composite beam adopting a series-parallel bidirectional combination form according to claim 4, wherein The beam frame further includes a fourth plate body fixedly supported between the second plate body and the third plate body. The fourth plate body extends in the up-and-down direction, and both ends of the fourth plate body are fixedly connected to the second plate body and the third plate body respectively.

8. The prefabricated lattice composite beam adopting a series-parallel bidirectional combination form according to claim 7, characterized in that Shear-resistant connecting members are fixedly arranged on the second plate body, the third plate body and the fourth plate body.

9. The fabricated lattice composite beam adopting a series-parallel bidirectional combination form according to claim 1, wherein The first connecting member is a connecting bolt.

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