CN112081302A - Beam structure and beam combination - Google Patents
Beam structure and beam combination Download PDFInfo
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- CN112081302A CN112081302A CN202010865280.8A CN202010865280A CN112081302A CN 112081302 A CN112081302 A CN 112081302A CN 202010865280 A CN202010865280 A CN 202010865280A CN 112081302 A CN112081302 A CN 112081302A
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- beam structure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
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- Composite Materials (AREA)
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- Joining Of Building Structures In Genera (AREA)
Abstract
The invention provides a beam structure and beam assembly comprising: a body beam including a pair of webs; a connecting plate connected to the pair of webs; due to the connection effect of the connecting plates, the positions of the pair of webs are relatively fixed, so that the relative positions of the webs are not easy to change, and the overall stability and the bearing capacity of the beam structure are improved; meanwhile, as the pair of webs are fixedly connected through the connecting plates, the webs are not required to be fixed by additional support frames in the subsequent concrete pouring process with the floor support plate, so that the construction operation is simplified, the production efficiency is improved, and the consumed manpower and material resources are reduced; more importantly, the beam structure has the advantages of simple structure, strong bearing capacity and stability, quick construction and the like, the connecting plate improves the bearing performance and the overall stability of the beam structure, the concrete in the beam combination is poured synchronously, the construction is convenient and efficient, the building industrialization trend is met, and the beam structure can be widely applied to multi-story and high-rise building structures.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a beam structure and a beam combination.
Background
The steel-concrete composite beam is a flexural member formed by connecting a steel beam and a concrete slab into a whole through shear keys, the steel-concrete composite beam is characterized in that the concrete is in a three-dimensional compression state by utilizing the mutual influence of two materials of an outsourcing steel plate and the concrete in a stress process and utilizing the constraint action of the outsourcing steel plate on the concrete, so that the strength of the concrete is improved. After the concrete is filled in the outer steel plate, the concrete is used for supporting the steel plate, and the local buckling of the outer steel plate can be delayed. The wrapped steel plate and the concrete mutually make up for respective defects, so that the material properties of the wrapped steel plate and the concrete are fully exerted.
The existing U-shaped steel plate of the externally-coated steel plate composite beam is mostly provided with an opening section, and the stability of the steel beam is ensured by the restraint effect of concrete on a steel beam web plate, however, the U-shaped steel beam has poor self bearing capacity in the mode, temporary supports need to be erected during floor pouring, and the like, so that the operation is complicated; some U shaped steel beams adopt an overhanging wing plate or a mode of internally arranging an inner baffle plate to strengthen the stability of the beam, however, the beam belongs to an opening section, and the problems of self bearing capacity and stability can not be fundamentally solved.
Therefore, a beam structure and a beam combination are urgently needed to solve the problems of insufficient bearing capacity and stability of the beam structure, and meanwhile, when the beam structure is poured with a floor, the operation process can be simplified, the production efficiency is improved, and manpower and material resources are reduced.
Disclosure of Invention
The invention solves the problem of providing a beam structure and a beam combination, which improve the bearing performance and the integral stability of the beam structure, simplify the construction procedure when pouring with a floor bearing plate, facilitate convenient and fast construction, accord with the building process trend, can be widely applied to multi-story and high-rise building structures, and have wide application range.
To solve the above problems, the present invention provides a beam structure comprising: a body beam including a pair of webs; and the connecting plate is connected to the pair of webs.
Optionally, the number of the connecting plates is one or more.
Optionally, when the number of the connecting plates is one, a plurality of injection holes are formed in the connecting plates.
Optionally, when the number of the connecting plates is multiple, the connecting plates are uniformly connected to the pair of webs, and a gap is formed between the adjacent connecting plates.
Optionally, the method further includes: the beam bottom plate is connected to the pair of webs and is distributed in parallel with the connecting plate.
Optionally, a "U" shaped groove or a trapezoidal groove is formed between the beam bottom plate and the pair of webs.
Optionally, the width of the connecting plate is greater than or equal to the width of the beam bottom plate.
Optionally, the width of the beam bottom plate is 150mm to 450 mm.
Optionally, the diameter of the injection hole is 50mm to 100 mm.
Correspondingly, the invention also provides a beam combination, which comprises any beam structure; the floor bearing plate is connected to the beam structure through a connecting piece.
Optionally, a concrete layer is filled in an area surrounded by the floor support plates, and a concrete layer is filled in an area surrounded by the beam structure.
Optionally, the connector is a stud or a steel shear key.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the beam structure comprises a main beam, wherein the main beam comprises a pair of webs, and a connecting plate is connected to the pair of webs; the connecting plates are utilized to connect the pair of webs together, so that the movement of the webs is limited, when the pair of webs are stressed and separated from each other, the positions of the pair of webs are relatively fixed due to the connecting action of the connecting plates, and the relative positions of the webs are not easy to change, so that the overall stability and the bearing capacity of the beam structure are improved; simultaneously because a pair of webs have the connecting plate to carry out fixed connection, in the in-process of concrete placement is carried out with the building carrier plate in follow-up, do not need extra support frame to fix the web, simplified construction operation, help improving production efficiency and reduce the manpower and the material resources that consume.
Drawings
FIG. 1 is a schematic structural view of a beam structure according to a first embodiment of the present invention;
FIG. 2 is a schematic view of a first embodiment of the present invention showing concrete poured into the beam structure;
FIG. 3 is another schematic illustration of the first embodiment of the present invention with concrete poured into the beam structure;
FIG. 4 is a schematic structural view of a beam assembly according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a beam structure in a second embodiment of the present invention.
Detailed Description
In order to meet the living demands of modern people, the requirements on the strength, the bearing capacity and the stability of the beam structure are higher and higher, and the beam structure which is most used at present usually adopts a U-shaped cross section, namely a beam bottom plate which comprises a pair of web plates and is connected with the pair of web plates.
The inventor has found through analysis that in the process of using the beam structure, after the beam structure is poured with concrete, the constraint force applied to the web plate mainly comes from the concrete, however, the constraint force is small, so that the self-bearing capacity and stability of the beam structure are poor, and the actual requirement cannot be met; simultaneously in the follow-up in-process that carries out concrete placement with the building carrier plate, need support etc. temporarily, complex operation, the time limit for a project is longer, and the manpower and materials that consume are more.
The inventor finds that the connecting plates are connected to the pair of webs, the webs can limit the movement of the webs in the process of stress, the relative fixation of the positions between the webs is ensured to be difficult to change, and the stability and the bearing capacity of the beam structure are enhanced; meanwhile, because the web plate is fixed through the connecting plate, in the process of pouring concrete, the web plate is not required to be supported by an additional part, the process is simplified, the construction period is shortened, certain labor and material cost is saved, and the method can be widely applied to multi-story and high-rise structures.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
First embodiment
FIG. 1 is a schematic structural view of a beam structure according to a first embodiment of the present invention; FIG. 2 is a schematic view of a first embodiment of the present invention showing concrete poured into the beam structure; FIG. 3 is another schematic illustration of the first embodiment of the present invention with concrete poured into the beam structure; fig. 4 is a schematic structural diagram of a beam assembly according to an embodiment of the invention.
Referring to fig. 1, the beam structure includes a main beam 1 and a connecting plate 2.
The body beam 1 comprises a pair of webs 12;
and a connecting plate 2 connected to the pair of webs 12.
In this embodiment, the connecting plate 2 is connected to the pair of webs 12, so that the positions of the pair of webs 12 are relatively fixed, and when the webs 12 are relatively displaced under the action of external force, the connecting plate 2 can provide resistance for preventing the webs 12 from moving, so that the webs 12 are not easily displaced, and the beam structure is not easily deformed, so that the bearing capacity and the stability of the beam structure are improved.
In the present embodiment, the number of the connecting plates 2 is one; in other embodiments, the number of the connection plates 2 may be more than one.
In the embodiment, the material of the connecting plate 2 is a steel plate; in other embodiments, the material of the connecting plate 2 may also be a metal plate or the like, and may be designed according to actual needs.
In this embodiment, the connecting plate 2 is welded to a pair of the webs 12.
In the embodiment, the thickness of the connecting plate 2 is 8mm to 16mm, and when the thickness of the connecting plate 2 is less than 8mm, the connecting plate 2 is too thin and has too poor strength, so that the movement of the web 12 cannot be well restrained, and the stability and the bearing capacity of the beam structure cannot be enhanced; when the thickness of the connecting plate 2 is greater than 16mm, the thickness of the connecting plate 2 is too thick, which can play a role in restraining the web 12 well and enhancing the stability and bearing capacity of the beam structure, but the material of the connecting plate 2 is consumed too much, so that the cost is increased.
The connecting plate 2 and the web plate 12 are connected by welding.
In the present embodiment, referring to fig. 2, the connection plate 2 and the web 12 are welded by a penetration weld 61. This welding is suitable when the thickness of the web 2 and the web 12 are relatively thick.
In other embodiments, referring to fig. 3, the connecting plate 2 and the web 12 are welded by fillet welds 62, which is suitable for the case where the connecting plate 2 and the web 12 are both thin.
With continued reference to fig. 1, the beam structure further includes a beam bottom plate 11, the beam bottom plate 11 is connected to a pair of the webs 12, and the beam bottom plate 11 and the connecting plate 2 are distributed in parallel.
In the present embodiment, the beam bottom plate 11 and the pair of webs 12 are formed by integral molding; in other embodiments, the beam bottom plate 11 and the pair of webs 12 may be connected together by welding or hinge.
In this embodiment, the beam bottom plate 11 and the pair of webs 12 may be manufactured by hot rolling or cold rolling, and the method is advantageous for industrial production.
In the embodiment, a "U" shaped groove structure 1 is formed between the beam bottom plate 11 and the pair of webs 12; in other embodiments, a trapezoidal groove structure may be formed between the beam bottom plate 11 and the pair of webs 12.
In the present embodiment, the width of the beam bottom plate 11 is 150mm to 450 mm.
In the present embodiment, the height of the web 12 perpendicular to the beam bottom plate 11 is calculated according to the actual bearing capacity.
The width of connecting plate 2 is greater than or equal to the width of roof beam bottom plate 11, and the purpose that sets up like this helps improving follow-up joint strength between beam structure and the building carrier plate, guarantees the stability of being connected between beam structure and the building carrier plate. The reason is that subsequently in the application process of the beam structure, the connection plate 2 is in contact with the floor deck, so that the contact area between the connection plate 2 and the floor deck is large, the larger the contact area is, and the better the connection strength and stability are ensured.
In this embodiment, the web 2 is about 200mm wider than the beam bottom plate 11.
In other embodiments, the width of the connecting plate 2 is larger than that of the beam bottom plate 11, and the strength can be calculated according to actual requirements.
In this embodiment, a closed structure is formed among the beam bottom plate 11, the pair of webs 12 and the connecting plate 2, that is, the cross section of the beam structure is a closed cross section, so that in the process of stressing the beam structure, no matter which surface is stressed, the other three surfaces can provide a blocking force, and the surfaces are restricted with each other, so that the bearing capacity and stability of the beam structure are improved, and the beam structure has good ductility and a wider application range; meanwhile, as the two end faces of the pair of webs 12 are respectively connected to the connecting plate 2 and the beam bottom plate 11, no extra supporting frame is needed to support the webs in the subsequent concrete pouring process, the operation flow is simplified, the construction period is shortened, and the cost of manpower and material resources is saved.
In the present embodiment, the beam bottom plate 11 and the web 12 have the same thickness.
In other embodiments, different thicknesses may be used between the beam bottom plate 11 and the web 12.
In the present embodiment, the thickness of the beam bottom plate 11 and the web 12 is 8mm to 16 mm; when the thicknesses of the beam bottom plate 11 and the web plate 12 are less than 8mm, the thickness of the formed beam structure is too thin, so that the stability and the bearing performance are poor; when the thicknesses of the beam bottom plate 11 and the web 12 are greater than 16mm, the thickness of the formed beam structure is too thick, and although the stability and the bearing performance of the beam structure can be ensured, the thicker the beam structure is, the higher the cost is, the heavier the weight is, and the difficulty is increased in the subsequent process.
In this embodiment, the connection plate 2 is provided with a plurality of injection holes 21.
In this embodiment, the injection hole 21 serves as a concrete inflow port for pouring concrete into the girder structure, thereby enabling integration between the floor decks.
The diameter of the injection hole 21 is 50mm to 100mm, and when the diameter of the injection hole 21 is smaller than 50mm, the diameter of the injection hole 21 is too small, so that subsequent concrete injection is not easy to occur, and thus good bonding between the beam structure and the floor support plate cannot be realized, and the connection strength between the beam structure and the floor support plate is reduced; when the diameter of the injection hole 21 is greater than 100mm, the diameter of the injection hole 21 is too large, which facilitates concrete pouring, but reduces the effective contact area between the connection plate 2 and the floor panel, and it is not easy to enhance the connection stability between the beam structure and the floor deck.
In this embodiment, the injection holes 21 are evenly distributed on the web 2, which helps to ensure that the beam structure is subjected to even forces.
In other embodiments, the injection holes 21 may also be unevenly distributed on the web 2.
In the present embodiment, the shape of the injection hole 21 is circular; in other embodiments, the shape of the injection hole 21 may also be an ellipse, a long bar, or the like.
In the present embodiment, the center of the injection hole 21 is located at the position of the center line of the connection plate 2.
The centre line of the web 2 refers to the centre line of symmetry of the web 2 in the direction of extension of the beam structure.
The center of the injection hole 21 refers to a center of a circle.
In this embodiment, guarantee the center of filling hole 21 is located the position of the central line of connecting plate 2, the purpose that sets up like this guarantees that the atress of connecting plate 2 is even, follow-up and the synchronous in-process of pouring concrete of building carrier plate, can guarantee the atress between beam structure and the building carrier plate is even for the holistic stability that beam structure and building carrier plate constitute improves, prolongs holistic life.
In other embodiments, the center of the injection hole 21 may not be located on the center line of the connection plate 2.
Correspondingly, the invention also provides a forming method of the beam structure, which comprises the following steps:
firstly: determining the height and width of the beam structure according to the requirements of building layout and structure calculation, namely the height of the web 12, the width of the beam bottom plate 11 and the width of the connecting plate 2, wherein the width of the connecting plate 2 is about 200mm larger than the width of the beam bottom plate 11, and the central line of the connecting plate 2 is aligned with the central line of the beam bottom plate 11;
determining the thicknesses of the beam bottom plate 11, the web plate 12 and the connecting plate 2 according to the requirements of the height and width, the structural bearing capacity and the stability of the beam structure;
forming a U-shaped groove structure 1 between the beam bottom plate 11 and the pair of webs 12 through an integral forming technology;
the connecting plate 2 is provided with a plurality of injection holes 21, the circular injection holes 21 are arranged at intervals along the beam length direction at the central line position of the connecting plate 2, the diameter of each injection hole is 50-100mm, and the distance between the injection holes is 300-600 mm.
And determining welding modes between the web plate 12 and the connecting plate 2 according to the thickness of the web plate and the connecting plate, wherein one welding mode adopts a penetration welding seam 61, and is suitable for a steel plate with thicker thickness or the other welding mode adopts a fillet welding seam 62, and is suitable for a steel plate with thinner thickness to form the beam structure.
In this embodiment, the beam structure is prefabricated in the factory, and then is transported to the site to be installed and cast with the floor support plate, so that the construction period is shortened, and the beam structure prefabricated in the factory has the advantages of high accuracy and high quality, and is beneficial to improving the strength, stability and quality of the whole building.
In the embodiment, the beam structure is used as a novel bending member, and has the advantages of clear force transmission mechanism, excellent bearing capacity and stability and the like, and the overall structure is simple.
Referring to fig. 4, a beam assembly includes a beam structure, a floor deck 5, and a concrete layer 3.
The floor decks 5 are connected to the beam structure by means of connectors 4.
In the present embodiment, the connecting member 4 is a peg.
In other embodiments, the connector 4 may also be a rebar shear key.
In the present exemplary embodiment, the connecting element 4 is fixed to the connecting plate 2.
In this embodiment, the connecting member 4 is embedded in the floor deck 5, so as to connect the beam structure and the floor deck 5.
In this embodiment, the floor deck 5 is a floor deck with a steel bar truss inside.
In this embodiment, the area enclosed by the floor support plates 5 is filled with the concrete layer 3, and the area enclosed by the beam structure is filled with the concrete layer 3.
In this embodiment, since the injection hole 21 is formed in the connecting plate 2, in the process of pouring concrete, the floor support plate 5 and the beam structure can be synchronously poured with concrete, the construction is convenient and fast, and the method is widely applicable to multi-story and high-rise structures, so that the concrete layer 3 is simultaneously filled in the area surrounded by the floor support plate 5 and the area surrounded by the beam structure, the process flow is simplified, and the bonding strength between the floor support plate 5 and the beam structure is enhanced.
In this embodiment, due to the closed cross section of the beam structure, when the web 12 needs to move relatively under stress, the beam bottom plate 11 and the connecting plate 2 both generate constraint force on the web 12, so as to limit the relative movement of the web 12, so that the stability and the bearing capacity of the beam structure are improved, and due to the fact that the beam structure is not easy to deform, cracking does not easily occur between the beam structure and the concrete layer 3, so that the forming quality of the concrete layer 3 is improved, and the forming quality and the strength of the beam combination are improved.
Correspondingly, the invention also provides a forming method of the beam combination, which comprises the following steps:
the connecting piece 4 is connected to the connecting plate 2;
the beam structure connected with the connecting piece 4 is spliced with a steel bar truss in the floor bearing plate 5;
and synchronously pouring the beam structure and the floor bearing plate 5 by using concrete, filling the area enclosed by the floor bearing plate 5 with the concrete layer 3, and filling the area enclosed by the beam structure with the concrete layer 3 to form the beam combination.
The process has high construction efficiency, is easy to realize industrialization, has definite stress of the beam structure, and connects the pair of webs 12 through the connecting plate 2, so that the positions of the pair of webs 12 are relatively fixed, the beam structure is ensured not to be deformed easily in the stress process, and the stability and the bearing capacity of the beam structure are effectively improved; meanwhile, the situation that temporary supports and other members are arranged in the process of synchronously pouring concrete with the floor bearing plate 5 is avoided, and the connecting plate 2 and the beam bottom plate 11 of the beam structure are both made into steel plates, so that the beam structure can have good ductility and stable energy consumption capacity, and is an ideal structural stress member.
Second embodiment
Fig. 5 is a schematic structural view of a beam structure in a second embodiment of the present invention.
The present embodiment differs from the first embodiment only in that the number of the connecting plates is plural.
In this embodiment, the number of the connecting plates 2 is plural, and plural connecting plates 2 are uniformly connected to a pair of the webs 12, and a gap 7 is provided between adjacent connecting plates 2.
In this embodiment, the gap 7 is used for the flow of concrete when the concrete is poured later.
In this embodiment, the plurality of connecting plates 2 connect the pair of webs 12, so that the pair of webs 12 are relatively fixed, and the beam structure is ensured not to be easily deformed under the action of external force, thereby improving the overall stability and bearing capacity of the beam structure; simultaneously because it is a plurality of have between connecting plate 2 clearance 7, clearance 7 provides the space for the flow of concrete, in the in-process of follow-up concrete placement with the building carrier plate, can realize pouring simultaneously with the building carrier plate, does not need extra support frame to fix the web simultaneously, has simplified construction operation, helps improving production efficiency and reduces the manpower and the material resources of consumption.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (12)
1. A beam structure, comprising:
a body beam including a pair of webs;
and the connecting plate is connected to the pair of webs.
2. The beam structure according to claim 1, wherein the number of the connecting plates is one or more.
3. The beam structure according to claim 2, wherein when the number of the connection plates is one, the connection plates are provided with a plurality of injection holes.
4. The beam structure according to claim 2, wherein when the number of the connecting plates is plural, plural connecting plates are uniformly connected to a pair of the webs with a gap between adjacent connecting plates.
5. The beam structure of claim 1, further comprising: the beam bottom plate is connected to the pair of webs and is distributed in parallel with the connecting plate.
6. The beam structure according to claim 5 wherein said beam bottom panel and a pair of said webs define a "U" or trapezoidal shaped channel therebetween.
7. The beam structure of claim 5 wherein the width of the web is greater than or equal to the width of the beam baseplate.
8. The beam structure of claim 5 wherein the beam bottom panel has a width of 150mm to 450 mm.
9. The beam structure of claim 3, wherein the injection hole has a diameter of 50mm to 100 mm.
10. A beam assembly, characterized in that,
comprising a beam structure according to any one of claims 1 to 9;
the floor bearing plate is connected to the beam structure through a connecting piece.
11. A beam combination according to claim 10, wherein the floor decks are lined with concrete in the area and the beam structures are lined with concrete in the area.
12. The beam assembly of claim 10 wherein the connector is a stud or a rebar shear key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010865280.8A CN112081302A (en) | 2020-08-25 | 2020-08-25 | Beam structure and beam combination |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010865280.8A CN112081302A (en) | 2020-08-25 | 2020-08-25 | Beam structure and beam combination |
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| CN112081302A true CN112081302A (en) | 2020-12-15 |
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| CN202010865280.8A Pending CN112081302A (en) | 2020-08-25 | 2020-08-25 | Beam structure and beam combination |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230757A (en) * | 2022-06-30 | 2022-10-25 | 青岛中车四方轨道车辆有限公司 | Railway vehicle body plate beam structure closed shell and manufacturing method thereof |
-
2020
- 2020-08-25 CN CN202010865280.8A patent/CN112081302A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230757A (en) * | 2022-06-30 | 2022-10-25 | 青岛中车四方轨道车辆有限公司 | Railway vehicle body plate beam structure closed shell and manufacturing method thereof |
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