CN115387537A - Frame beam structure - Google Patents
Frame beam structure Download PDFInfo
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- CN115387537A CN115387537A CN202211111957.4A CN202211111957A CN115387537A CN 115387537 A CN115387537 A CN 115387537A CN 202211111957 A CN202211111957 A CN 202211111957A CN 115387537 A CN115387537 A CN 115387537A
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- reinforced concrete
- beam structure
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- 239000011150 reinforced concrete Substances 0.000 claims abstract description 69
- 239000002131 composite material Substances 0.000 claims abstract description 28
- 238000005452 bending Methods 0.000 claims abstract description 27
- 238000010276 construction Methods 0.000 claims abstract description 22
- 238000010008 shearing Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 139
- 239000010959 steel Substances 0.000 claims description 139
- 230000006835 compression Effects 0.000 claims description 20
- 238000007906 compression Methods 0.000 claims description 20
- 239000004567 concrete Substances 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000009415 formwork Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000035772 mutation Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 14
- 238000004873 anchoring Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
- E04C3/205—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members with apertured web, e.g. frameworks, trusses
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/168—Spacers connecting parts for reinforcements and spacing the reinforcements from the form
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/04—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention provides a frame beam structure, which comprises a combined structure beam and a reinforced concrete beam; the reinforced concrete beams are respectively connected to two ends of the combined structural beam so as to form a frame beam structure; the composite structure beam is positioned in the section with the maximum positive bending moment of the frame beam structure; the connection area of the reinforced concrete beam and the combined structure beam is positioned in the minimum section of the frame beam structure bending moment; the reinforced concrete beams at the two ends of the combined structural beam are respectively used for bearing the negative bending moment and the shearing force of the root of the frame beam structure; the frame beam structure provided by the invention can give full play to the advantages of the combined structure, and simultaneously avoids the disadvantages of complex stress, difficult construction and the like of the combined structure during beam-column connection; the composite material has the advantages of stronger bending resistance, strong bearing capacity, resource saving and remarkable economic benefit, and can improve the floor height utilization rate of the building.
Description
Technical Field
The invention belongs to the technical field of frame beam structures, and particularly relates to a frame beam structure.
Background
The beam height of the traditional concrete structure is increased when the span is large, but the space in the beam height range cannot be effectively utilized, and based on the existing structural design consideration, a space special for heating ventilation, fire protection and electric bridge frame to pass through needs to be reserved under the beam; taking a garage as an example, the height of the equipment layer is 700mm below the beam, the space in the existing frame concrete building beam cannot be effectively utilized, and the use requirements of equipment and electricity can be met only by increasing the layer height, so that huge social resource waste is caused.
Holes reserved in a traditional reinforced concrete frame beam and used for equipment pipelines to pass through have strict requirements on size and position, cannot meet the requirement of passing the equipment pipelines which are increasingly complex at present (both the size and the number cannot be met), is difficult to construct and cannot be adopted generally if no special requirement exists; furthermore, traditional steel and concrete integrated configuration roof beam is left on the girder steel and is established the equipment entrance to a cave and compare then make things convenient for much more in concrete frame roof beam, but the girder steel collides easily with frame post reinforcing bar when passing through the frame post, causes frame post reinforcing bar to need to carry out the hole of cutting through on the girder steel when passing through the girder steel, and the stirrup can't be closed in girder steel height range in beam column node core space, and the construction is complicated and the cost is too high.
Based on the technical problems existing in the frame beam, no relevant solution is provided; there is therefore a pressing need to find effective solutions to the above problems.
Disclosure of Invention
The invention aims to provide a frame beam structure aiming at the defects in the prior art and aims to solve one of the problems that the existing frame beam structure is unreasonable in design and inconvenient to construct.
The invention provides a frame beam structure, which comprises a combined structure beam and a reinforced concrete beam; the reinforced concrete beams are respectively connected to two ends of the combined structural beam, so that a frame beam structure is formed by connection; the combined structure beam is positioned in the section with the maximum positive bending moment of the frame beam structure; the bending moment of the connection area of the reinforced concrete beam and the composite structure beam is smaller than that of the composite structure beam area; the connection area of the reinforced concrete beam and the combined structure beam is positioned in the minimum section of the frame beam structure bending moment; and the reinforced concrete beams at the two ends of the combined structural beam are respectively used for bearing the negative bending moment and the shearing force of the root of the frame beam structure.
Further, the composite structural beam comprises a tensile beam structure and a compression beam structure; the compression beam structure is arranged on the upper end surface of the tensile beam structure and is fixedly connected with the tensile beam structure, so that a combined structure beam is formed; the tensile beam structure is a steel frame structure, and the compressive beam structure is a reinforced concrete structure.
Furthermore, when the tensile beam structure is a lattice type steel frame structure, the steel frame structure comprises a horizontal steel plate and a tensile steel member; the horizontal steel plate is arranged along the horizontal direction, the tensile steel member is arranged at the bottom of the horizontal steel plate along the horizontal direction, and the horizontal steel plate and the tensile steel member are fixedly connected together through a supporting structure; the horizontal steel plate upper end face is provided with a plurality of horizontal shear connectors along the vertical direction, the steel frame structure is connected with the reinforced concrete structure through the horizontal shear connectors, and the reinforced concrete structure is arranged on the upper end face of the horizontal steel plate.
Furthermore, the reinforced concrete structure is embedded with stirrups, so that part of shear-resistant bearing capacity can be provided; the steel frame structure also comprises shear resisting plates, wherein the shear resisting plates are arranged at the bottom of the horizontal steel plate along the length direction of the steel frame structure and are respectively positioned at two ends of the steel frame structure; two ends of the steel frame structure are respectively connected with the reinforced concrete beam through the horizontal steel plate, the tensile steel member and the shear-resistant plate, so that the shear-resistant plate can provide shear-resistant bearing capacity.
Furthermore, a closed plate is arranged on the steel frame structure and connected between the horizontal steel plate and the tensile steel member; the closed plate is arranged at the joint of the steel frame structure and the reinforced concrete beam; the closed plate is used for strengthening the section mutation part at the joint of the steel frame structure and the reinforced concrete beam and is used as an inner beam template of the reinforced concrete beam.
Furthermore, the tensile beam structure and the compression beam structure are connected through the adhesive force of concrete and auxiliary mechanical anchoring; and the combined structure beam is connected with the reinforced concrete beam through the adhesive force of concrete and the steel frame structure.
Furthermore, the tensile beam structure is provided with a hole for the passing of the equipment pipeline.
Further, the steel frame structure is a hollow structural beam; the tensile beam structure is positioned in the minimum section of the frame beam structure in shearing force; the shearing force of the connecting area is smaller than that of the compression beam structure; the shear force of the connecting area is greater than that of the tensile beam structure.
Furthermore, the supporting structure comprises a plurality of supporting columns and a plurality of inclined struts, and the supporting columns and the inclined struts are of steel structures; the support columns are fixedly connected between the horizontal steel plate and the tensile steel member along the vertical direction;
one end of each inclined strut is connected to the connecting position of each supporting column and the tensile steel member, and the other end of each inclined strut is connected to the connecting position of the adjacent supporting column and the horizontal steel plate; alternatively, the first and second liquid crystal display panels may be,
the one end of bracing is connected in the junction of support column and horizontal steel sheet, and the other end of bracing is connected in the junction of adjacent support column and tensile steel member.
Further, the horizontal steel plate extends outward by a predetermined length in the width direction of the frame beam structure, thereby being capable of providing formwork support for the concrete part while transferring an internal force.
Further, the shear connector is a horizontal shear anchor bolt or a horizontal shear short rib.
The frame beam structure provided by the invention can give full play to the advantages of the combined structure, and simultaneously avoids the disadvantages of complex stress, difficult construction and the like of the combined structure during beam-column connection; the steel plate has the advantages of stronger bending resistance, strong bearing capacity, resource saving and remarkable economic benefit; by adopting different steel structure forms, the steel structure part can meet different use requirements, the height in the frame beam structure can be fully utilized, the floor height is saved, the civil engineering cost is reduced, and the application scene is wider; the equipment pipeline arrangement can be carried out within the beam height range without reducing the bearing capacity of the frame beam structure, the space of the frame beam structure can be fully utilized, the floor height utilization rate of a building is improved, and the economic benefit is remarkable.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention will be further explained with reference to the drawings, in which:
FIG. 1 is a schematic view of a functional area of a frame beam structure according to the present invention;
FIG. 2 is a shear diagram (composite structure implementation area) of a frame beam structure of the present invention;
FIG. 3 is a bending moment diagram of a frame beam structure (composite structure implementation area) according to the present invention;
FIG. 4 is a schematic view of a frame beam structure according to the present invention;
FIG. 5 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 4 in accordance with the present invention;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4 in accordance with the present invention;
FIG. 7 is a side view of the steel frame construction of the present invention;
FIG. 8 is a top view of the steel frame construction of the present invention;
FIG. 9 is a bottom view of the steel frame construction of the present invention.
In the figure: 1. a horizontal shear connector; 2. a horizontal steel plate; 3. a tensile steel member; 4. a closing plate; 5. shearing resisting plates; 6. a steel frame structure; 7. a support pillar; 8. bracing; 10. a composite structural beam; 20. a reinforced concrete beam; 30. a tensile beam structure; 40. a compression beam structure; 50. a connection region.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 9, the present invention provides a frame beam structure, and more particularly, to a frame beam structure partially using a combination of steel and concrete; the frame beam structure comprises a combined structure beam 10 and a reinforced concrete beam 20; wherein, the reinforced concrete beam 20 is respectively connected to both ends of the composite structural beam 10, thereby forming a frame beam structure; specifically, the composite structural beam 10 is located in a section with the largest positive bending moment of the frame beam structure, and the section is a section with relatively small shearing force; by adopting the structural design, according to the stress characteristic of the frame beam, the combined structural beam 10 is used for the section with the largest positive bending moment and relatively smaller shearing force of the frame beam, the characteristic that the combined structure can bear larger positive bending moment is fully exerted, and better economic benefit is obtained; further, in the whole frame beam structure, the connection area 50 of the reinforced concrete beam 20 and the composite structure beam 10 is located in a section where the bending moment and the shearing force of the frame beam are small, wherein the connection area 50 of the reinforced concrete beam 20 and the composite structure beam 10 is located in the minimum section of the bending moment of the frame beam structure, and the shearing force of the connection area 50 is smaller than the shearing force of the reinforced concrete beam 20; further, the reinforced concrete beams at the two ends of the composite structural beam 10 are respectively used for bearing the negative bending moment and the shearing force of the root of the frame beam structure; according to the frame beam structure provided by the invention, the bending moment diagram and the shearing diagram of the frame beam structure and the arrangement range of the combined structure beam in the frame beam are obtained according to stress analysis, so that the bending moment and the shearing force of each section of the combined structure are obtained, and the component design is carried out according to the principles of partial compression resistance of reinforced concrete and partial tensile resistance of a steel structure, so that the space in the beam can be effectively utilized, and the construction is convenient; the frame beam structure has the advantages of advanced technology, reasonable economy, safety and applicability.
Preferably, in combination with the above solutions, as shown in fig. 1 to 9, the composite structural beam 10 is mainly located in the section where the bending moment of the frame beam is the largest and the shearing force is relatively small, so the shear-resistant bearing capacity of the structure is shared by the reinforced concrete part and the steel structure part; specifically, the composite structural beam 10 includes a tensile beam structure 30 and a compression beam structure 40; wherein, the section of the tensile beam structure 30 is a tensile area of a composite structure, and a steel structure member is adopted as a main stressed member; the sections of the compression-resistant beam structure 40 are compression-resistant areas of a combined structure, and reinforced concrete members are used as main stress members; specifically, the compression beam structure 40 is disposed on the upper end surface of the tensile beam structure 30, and is fixedly connected to the tensile beam structure 30, thereby forming the composite structural beam 10; further, the tensile beam structure 30 is a steel frame structure 6, and the compression beam structure 40 is a reinforced concrete structure; further, according to the above structural design, the tensile beam structure 30 (i.e., the steel frame structure 6) is designed as a hollow structural beam; this allows the tensile beam structure 30 to be located in the shear force minimum section of the frame beam structure; further, the shear force of the connection region 50 is smaller than the shear force of the reinforced concrete beam 20 and the compression beam structure 40, and the shear force of the connection region 50 is larger than the shear force of the tension beam structure 30.
Preferably, in combination with the above-mentioned solutions, as shown in fig. 1 to 9, the connection region 50 of the composite structural beam 10 and the reinforced concrete beam 20 is located at the region with a small bending moment, and the tensile beam structure 30 of the composite structural beam 10 is connected with the compression beam structure 40 by the adhesion of steel and concrete and the auxiliary mechanical anchoring manner; further, the upper reinforcing steel bars of the compression beam structure 40 of the combined structure can be directly arranged throughout; the combined structure beam 10 part in the frame beam structure is directly connected with the reinforced concrete beam part at the position with smaller bending moment; when the adhesive force between steel and concrete and the auxiliary mechanical anchoring force are larger than the pulling force (pull-out force) of a steel structure tension member in the combined structure, the beam part of the combined structure and the reinforced concrete beam part can be conveniently integrated; furthermore, the area of the reinforced concrete beam 20 mainly bears the negative bending moment and the shearing force of the root of the beam column, and the construction measures are completely consistent with the related measures of the reinforced concrete structure at the present stage; furthermore, the joint section of the composite structural beam 10 and the reinforced concrete beam 20 adopts the construction measure of common reinforced concrete, and the advantages of strong shearing resistance and simple structure of the traditional reinforced concrete member are fully exerted.
Preferably, in combination with the above solutions, as shown in fig. 1 to 9, in the present embodiment, the tensile beam structure 30 is a lattice-type steel frame structure 6; specifically, the steel frame structure 6 includes a horizontal steel plate 2 and a tensile steel member 3; the horizontal steel plate 2 is arranged along the horizontal direction, the two tensile steel members 3 are arranged on two sides of the bottom of the horizontal steel plate 2 along the horizontal direction, and the horizontal steel plate 2 is fixedly connected with the tensile steel members 3 through a supporting structure; furthermore, a plurality of horizontal shear connectors 1 are arranged on the upper end surface of the horizontal steel plate 2 along the vertical direction; specifically, the steel-frame structure 6 is connected to the reinforced concrete structure through the horizontal shear connector 1, and the reinforced concrete structure is disposed on the upper end surface of the horizontal steel plate 2.
Preferably, in combination with the above solutions, as shown in fig. 1 to 9, a stirrup is embedded in the reinforced concrete structure, so that a part of the shear-resistant bearing capacity can be provided for the composite structural beam 10, and the shear-resistant part can meet the requirement of the shear-resistant bearing capacity by partially adding the shear-resistant plate 5 to the steel frame structure 6; specifically, the steel frame structure 6 further comprises shear resisting plates 5, and the shear resisting plates 5 are arranged at the bottom of the horizontal steel plates 2 along the length direction of the steel frame structure 6 and are respectively positioned at two ends of the steel frame structure 6; specifically, the shear resistant plate 5 is arranged in the middle of the bottom of the horizontal steel plate 2; two ends of the steel frame structure 6 are respectively connected with the reinforced concrete beam 20 through the horizontal steel plate 2, the tensile steel member 3 and the shear resistant plate 5, so that the shear resistant plate 5 can provide shear bearing capacity; specifically, the tensile steel member 3 of the steel frame structure 6 part is anchored into the reinforced concrete beam 20 and is simultaneously matched with mechanical anchoring; the connection area 50 of the combined structure beam 10 and the reinforced concrete beam 20 is reinforced in a beam stirrup encryption mode; further, the steel frame structure 6 of the composite structural beam 10 provided by the invention is prefabricated in a factory and is installed in place when the reinforcing bars of the framework beam formwork are tied.
Preferably, in combination with the above scheme, as shown in fig. 1 to 9, a closing plate 4 is arranged on the steel frame structure 6, and the closing plate 4 is connected between the horizontal steel plate 2 and the tensile steel member 3; specifically, the closing plate 4 is arranged at the joint of the steel frame structure 6 and the reinforced concrete beam 20; this closed plate 4 of design is used for strengthening the cross-section sudden change position of steel frame construction 6 and reinforced concrete roof beam 20 junction to as reinforced concrete roof beam 20's roof beam inner formword, the design can conveniently be under construction and pour like this.
Preferably, in combination with the above, as shown in fig. 1 to 9, the tensile beam structure 30 is a web steel frame structure; further, the tensile beam structure 30 and the compression beam structure 40 are connected through the bonding force of concrete and auxiliary mechanical anchoring; and the composite construction beam 10 is coupled with the reinforced concrete beam 20 by the adhesive force of concrete and the steel frame structure.
Preferably, in combination with the above solutions, as shown in fig. 1 to 9, the tensile beam structure 30 is provided with a hole, and the hole is used for the pipeline of the equipment to pass through; specifically, the combined structural beam 10 has large bending moment and small shearing force, and the steel structure of the web part can be provided with a larger hole or directly adopts a lattice steel structure (truss structure or other structures) to reserve space for the equipment pipeline to pass through; and the joint section of the combined structure beam 10 and the reinforced concrete beam 20 adopts the construction measure of common reinforced concrete, the construction is the same as that of a common reinforced concrete frame beam, no special requirements are required for construction teams, and the construction is convenient.
Preferably, in combination with the above solutions, as shown in fig. 1 to 9, the supporting structure includes a plurality of supporting columns 7 and a plurality of inclined struts 8, and the supporting columns 7 and the inclined struts 8 are steel structures; specifically, the supporting column 7 is fixedly connected between the horizontal steel plate 2 and the tensile steel member 3 along the vertical direction; furthermore, one end of each inclined strut 8 is connected to the connection position of each supporting column 7 and the tensile steel member 3, and the other end of each inclined strut 8 is connected to the connection position of the adjacent supporting column 7 and the horizontal steel plate 2; or one end of the inclined strut 8 is connected to the joint of the support column 7 and the horizontal steel plate 2, and the other end of the inclined strut 8 is connected to the joint of the adjacent support column 7 and the tensile steel member 3, so that the support effect can be achieved, and the tensile strength of the structure is improved; furthermore, the supporting columns 7 and the inclined struts 8 can be specially designed after interior analysis according to the stress characteristics of the beam, so that the requirement on supporting strength is met.
Preferably, in combination with the above, as shown in fig. 1 to 9, the horizontal steel plate 2 is extended outward by a predetermined length in a width direction of the frame beam structure, thereby being capable of providing formwork support to the concrete part while transmitting an internal force.
Preferably, in combination with the above solution, as shown in fig. 1 to 9, the shear connectors 1 are horizontal shear anchors or horizontal shear short bars, and further, two rows of shear connectors 1 are respectively disposed on two sides of the upper end surface of the horizontal steel plate 2 along the vertical direction; specifically, the reinforced concrete beam 20 mainly bears the negative bending moment and the shearing force of the root of the beam column, and the construction measures are completely consistent with the related measures of the reinforced concrete structure at the current stage; furthermore, the beam column root constructional measures are completely consistent with the related measures of the reinforced concrete structure in the current stage, the construction is the same as that of the common reinforced concrete frame beam, no special requirements are required on construction teams, and the construction is convenient.
The frame beam structure provided by the invention can give full play to the advantages of the combined structure, and simultaneously avoids the disadvantages of complex stress, difficult construction and the like of the combined structure during beam-column connection; the steel plate has the advantages of stronger bending resistance, strong bearing capacity, resource saving and remarkable economic benefit; by adopting different steel structure forms, the steel structure part can meet different use requirements, the height in the frame beam structure can be fully utilized, the floor height is saved, the civil engineering cost is reduced, and the application scene is wider; the equipment pipeline arrangement can be carried out within the beam height range without reducing the bearing capacity of the frame beam structure, the space of the frame beam structure can be fully utilized, the floor height utilization rate of a building is improved, and the economic benefit is remarkable.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make many possible variations and modifications to the disclosed solution, or modify equivalent embodiments using the teachings presented above, without departing from the scope of the claimed solution. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (10)
1. A frame beam structure, characterized in that it comprises a composite structural beam (10) and a reinforced concrete beam (20); the reinforced concrete beams (20) are respectively connected to two ends of the combined structural beam (10) so as to be connected to form the frame beam structure; the composite structural beam (10) is positioned in the section with the largest positive bending moment of the frame beam structure; the connection area (50) of the reinforced concrete beam (20) and the composite structural beam (10) is located at the minimum section of the frame beam structure bending moment; and reinforced concrete beams at two ends of the combined structural beam (10) are respectively used for bearing the hogging moment and the shearing force of the root of the frame beam structure.
2. A frame beam structure according to claim 1, characterized in that the composite structural beam (10) comprises a tensile beam structure (30) and a compression beam structure (40); the compression beam structure (40) is arranged on the upper end face of the tensile beam structure (30) and is fixedly connected with the tensile beam structure (30), so that the combined structural beam (10) is formed; the tensile beam structure (30) is a steel frame structure (6), and the compression beam structure (40) is a reinforced concrete structure.
3. A frame beam structure according to claim 2, characterized in that the tensile beam structure (30) is a lattice-type steel frame structure (6), the steel frame structure (6) comprising horizontal steel plates (2) and tensile steel members (3); the horizontal steel plate (2) is arranged along the horizontal direction, the tensile steel member (3) is arranged at the bottom of the horizontal steel plate (2) along the horizontal direction, and the horizontal steel plate (2) and the tensile steel member (3) are fixedly connected together through a supporting structure; the steel frame structure is characterized in that a plurality of horizontal shear connectors (1) are arranged on the upper end face of the horizontal steel plate (2) along the vertical direction, the steel frame structure (6) is connected with the reinforced concrete structure through the horizontal shear connectors (1), and the reinforced concrete structure is arranged on the upper end face of the horizontal steel plate (2).
4. A frame beam structure according to claim 3, wherein the reinforced concrete structure is embedded with stirrups, thereby providing a partial shear-resistant bearing; the steel frame structure (6) further comprises shear resisting plates (5), wherein the shear resisting plates (5) are arranged at the bottom of the horizontal steel plate (2) along the length direction of the steel frame structure (6) and are respectively positioned at two ends of the steel frame structure (6); two ends of the steel frame structure (6) are connected with the reinforced concrete beam (20) through the horizontal steel plate (2), the tensile steel member (3) and the shear-resistant plate (5) respectively, so that the shear-resistant plate (5) can provide shear-resistant bearing capacity.
5. A frame beam structure according to claim 4, characterized in that there are closing plates (4) on the steel frame structure (6), the closing plates (4) being connected between the horizontal steel plates (2) and the tensile steel members (3);
the closing plate (4) is arranged at the joint of the steel frame structure (6) and the reinforced concrete beam (20); the closed plate (4) is used for reinforcing the section mutation position of the joint of the steel frame structure (6) and the reinforced concrete beam (20) and is used as an inner beam template of the reinforced concrete beam (20).
6. Frame beam structure according to claim 2, characterized in that the tensile beam structure (30) and the compression beam structure (40) are connected by adhesion of concrete and auxiliary mechanical anchorage; and the composite structural beam (10) is connected with the reinforced concrete beam (20) through the adhesive force of concrete and a steel frame structure.
7. The frame beam structure according to claim 2, characterized in that the tensile beam structure (30) is provided with holes for the passage of equipment pipes; and/or the presence of a gas in the gas,
the steel frame structure (6) is a hollow structural beam; the tensile beam structure (30) is located at the frame beam structure shear force minimum section; the shear force of the connection area (50) is smaller than the shear force of the compression beam structure (40); the shear force of the connection region (50) is greater than the shear force of the tensile beam structure (30).
8. A frame beam structure according to claim 3, characterized in that the support structure comprises a plurality of support columns (7) and a plurality of diagonal braces (8), the support columns (7) and the diagonal braces (8) being of steel construction; the supporting columns (7) are fixedly connected between the horizontal steel plates (2) and the tensile steel members (3) in the vertical direction;
one end of the inclined strut (8) is connected to the connection position of the supporting column (7) and the tensile steel member (3), and the other end of the inclined strut (8) is connected to the connection position of the adjacent supporting column (7) and the horizontal steel plate (2); alternatively, the first and second electrodes may be,
the one end of bracing (8) is connected support column (7) with the junction of horizontal steel sheet (2), the other end of bracing (8) is connected adjacently support column (7) with the junction of tensile steel member (3).
9. A frame beam structure according to claim 3, characterized in that the horizontal steel plates (2) extend outwardly in the width direction of the frame beam structure by a preset length, thereby enabling to provide formwork support for the concrete part while transferring internal forces.
10. Frame beam structure according to claim 3, characterized in that the shear connectors (1) are horizontal shear anchors or horizontal shear studs.
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