CN116771035A - Three-section type frame beam - Google Patents
Three-section type frame beam Download PDFInfo
- Publication number
- CN116771035A CN116771035A CN202310739406.0A CN202310739406A CN116771035A CN 116771035 A CN116771035 A CN 116771035A CN 202310739406 A CN202310739406 A CN 202310739406A CN 116771035 A CN116771035 A CN 116771035A
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- Prior art keywords
- special
- shaped
- cover plate
- shaped end
- shaped steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 94
- 239000010959 steel Substances 0.000 claims abstract description 94
- 239000000463 material Substances 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims description 9
- 206010066054 Dysmorphism Diseases 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 18
- 230000035939 shock Effects 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- 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
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
-
- 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
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
-
- 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
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/0452—H- or I-shaped
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to the technical field of constructional engineering and discloses a three-section frame beam, which comprises a middle beam and two special-shaped end beams respectively connected with two ends of the middle beam; the middle beam is an H-shaped steel beam, and the horizontal section of the special-shaped end beam is trapezoid or triangle; the special-shaped end beam comprises two special-shaped steel beam webs which are arranged correspondingly in the horizontal direction at intervals in the front-back direction, and the two special-shaped steel beam webs are arranged vertically; the top of the special-shaped steel beam web plate is provided with an upper cover plate, the bottom of the special-shaped steel beam web plate is provided with a lower cover plate, and the two special-shaped steel beam web plates, the upper cover plate and the lower cover plate enclose a pouring space; and filling the pouring space with a compression-resistant material. According to the invention, the two special-shaped steel girder webs which are arranged at intervals from front to back form the special-shaped end beam with the upper cover plate and the lower cover plate, and the pouring space is filled with the compression-resistant material, so that the bending resistance, the bending rigidity and the shock resistance can be remarkably improved, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a three-section frame beam.
Background
The beam has various types in the building field and wide application; the beam is an important component for supporting the building and keeping stability; the existing steel beam structure is mainly focused on the connection mode of the steel beam and the steel column, so that the stability of the steel beam is improved, the overall supporting capacity is further improved, for example, the Chinese patent with document numbers of CN211774632U, CN203334546U and CN209686579U is mainly improved by designing a new connection mode of the steel beam and the steel column, namely, the connection area of the steel beam and the steel column is increased, and the aim of improving the stability is fulfilled; however, the joint of the steel column and the H beam is mainly changed along the height direction of the steel column, the joint connection bearing strength is enhanced by improving the height of the joint, the joint connection mode only optimizes the joint, the whole bearing capacity and the cost of the beam are optimized, if the cost is further optimized, the member itself needs to be innovated, and the cost is reduced on the premise of ensuring the bearing capacity.
Disclosure of Invention
The purpose of the invention is that: the defect existing in the prior art is overcome, the three-section frame beam is provided, the two special-shaped steel beam webs which are arranged at intervals front and back form a special-shaped end beam together with the upper cover plate and the lower cover plate, and the pouring space is filled with compression-resistant materials, so that the bending resistance and the stability can be remarkably improved, and meanwhile, the cost is reduced.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the three-section frame beam comprises a middle beam and two special-shaped end beams which are respectively connected with two ends of the middle beam; the middle beam is an H-shaped steel beam, and the horizontal section of the special-shaped end beam is trapezoid or triangle; the special-shaped end beam comprises two special-shaped steel beam webs which are arranged correspondingly in the horizontal direction at intervals in the front-back direction, and the two special-shaped steel beam webs are arranged vertically; the top of the special-shaped steel beam web plate is provided with an upper cover plate, the bottom of the special-shaped steel beam web plate is provided with a lower cover plate, and the two special-shaped steel beam web plates, the upper cover plate and the lower cover plate enclose a pouring space; and filling the pouring space with a compression-resistant material.
Further, the special-shaped end beam is a variable-section height beam, the joint of the special-shaped end beam and the middle beam is equal to the middle beam in height, and the height of the special-shaped end beam is gradually increased in the direction away from the middle beam.
Further, the upper cover plate and the lower cover plate are both trapezoidal.
Further, the middle beam comprises a web plate, wherein the top of the web plate is connected with an upper flange plate, and the bottom of the web plate is connected with a lower flange plate; when two special-shaped steel girder webs are fixedly connected with the front side and the rear side of the web end respectively through a bolt structure, the horizontal section of the special-shaped end girder is trapezoid; when two special-shaped steel girder webs are welded with web ends, the horizontal section of the special-shaped end girder is triangular.
Further, when the special-shaped steel beam web plate is connected with the web plate through a bolt structure, the length of the upper flange plate is longer than that of the lower flange plate; therefore, when in construction and installation, the middle beam, namely the H-shaped steel beam, can be stably simply supported on the beams at the two ends of the special-shaped end parts before being connected by bolts, and the construction is convenient.
Further, one end of the middle beam of the special-shaped end Liang Yuanli is fixedly connected with the steel column or the bracket reserved on the steel column.
Preferably, the end beam of the special-shaped end part, which is close to the steel column, is disconnected, and the disconnected part is fixedly connected through a first bolt clamping plate; the steel column is provided with a bracket which is connected with a disconnection part close to the steel column; the side surface of the steel column is provided with a pouring hole communicated with the pouring space, or the upper cover plate is provided with a pouring hole communicated with the pouring space.
The utility model provides a dysmorphism combination beam, includes dysmorphism tip roof beam, and the top of dysmorphism tip roof beam is provided with concrete floor, and the upper cover passes through the shear connector and forms the combination beam with concrete floor.
The H-shaped combined beam comprises a middle beam, wherein a concrete floor slab is arranged at the top of the middle beam, and an upper flange plate and the concrete floor slab form the combined beam through a shear connector.
The beneficial effects of the invention are as follows:
1. compared with the traditional H-shaped steel beam or H-shaped steel composite beam, the special-shaped end Liang Xianzhu has the advantages that the bending resistance and the bending rigidity are improved, so that the structural deformation is reduced; the horizontal section of the special-shaped end beam is arranged into a trapezoid or triangle, so that the special-shaped end beam corresponds to the bending moment, the bending moment is large in section, the bending moment is small in section, the bending moment of the frame beam is the negative bending moment of the joint of the frame beam and the column is the largest, the joint of the special-shaped end beam and the middle beam is close to the reverse bending point, and the bending moment is the smallest.
2. The compressive material filled in the pouring space is utilized, the steel consumption of the lower cover plate can be reduced under the condition of negative bending moment, which is equivalent to the compressive performance of replacing steel by the compressive performance of the filling material, and under the same condition, compared with the existing steel consumption, the scheme can save the steel consumption by about 15 percent, and reduce the cost.
3. The stability of the special-shaped end beam is stronger, and the plastic hinge is formed under the action of the reciprocating bending moment, so that the shock resistance is better than that of the H-shaped steel.
Drawings
FIG. 1 is a schematic top view of the present invention with the upper flange plate removed;
FIG. 2 is a schematic top view of the present invention with upper and lower flange plates removed;
FIG. 3 is a schematic view of an H-beam structure of the present invention with a profiled end beam bolted to a web;
FIG. 4 is a schematic top view of the present invention;
FIG. 5 is a schematic illustration of a contoured beam structure of the present invention in constant height section;
FIG. 6 is a schematic view of a variable height section profiled beam of the present invention;
FIG. 7 is a schematic illustration of a composite beam formed from a profiled beam of the present invention and a concrete floor slab;
fig. 8 is a schematic view of a composite beam formed by an H-beam and a concrete floor slab according to the present invention.
101, a web; 102. an upper flange plate; 103. a lower flange plate; 201. profiled steel beam webs; 202. an upper cover plate; 203. a lower cover plate; 301. a clamping plate part; 302. a first screw hole; 303. a first bolt clamping plate; 304. a second screw hole; 305. matching with the screw holes; 4. a bracket; 5. a steel column; 6. an exhaust hole; 7. a reinforcing tube; 8. a shear connector; 9. and (3) a concrete floor slab.
Detailed Description
The invention is further illustrated by the following description in conjunction with the accompanying drawings and specific embodiments.
Examples:
as shown in fig. 1 to 6, a three-section frame beam comprises a middle beam and two special-shaped end beams respectively connected with two ends of the middle beam; the middle beam is an H-shaped steel beam, and the horizontal section of the special-shaped end beam is trapezoid or triangle in a overlook state; the special-shaped end beam comprises two special-shaped steel beam webs 201 which are arranged correspondingly in the horizontal direction at intervals in the front-back direction, and the two special-shaped steel beam webs 201 are arranged vertically; the top of the special-shaped steel beam web 201 is provided with an upper cover plate 202 which seals a pouring space from above and is connected with the upper flange plate 102, the bottom of the special-shaped steel beam web 201 is provided with a lower cover plate 203 which seals the pouring space from below and is connected with the lower flange plate 103, and the two special-shaped steel beam webs 201, the upper cover plate 202 and the lower cover plate 203 enclose a pouring space; the casting space is filled with compression-resistant materials, and the compression-resistant materials can be concrete; the two special-shaped end beams can be identical and are symmetrically arranged left and right relative to the middle beam, the center of the middle beam is taken as a symmetrical center, and the two special-shaped end beams can also be different, and the horizontal section of the special-shaped end beams is trapezoid or triangle.
The special-shaped end beam can be a variable-section height beam, the joint of the special-shaped end beam and the middle beam is equal to the middle beam in height, and the height of the special-shaped end beam is gradually increased towards the direction away from the middle beam.
The upper cover plate 202 and the lower cover plate 203 can be trapezoid, the length of the trapezoid bottom edge on the left side is larger than that of the trapezoid bottom edge on the right side, and the front and rear protruding special-shaped steel beam webs 201 are arranged and are connected with the lateral vertical sections of the special-shaped steel beam webs 201 in parallel in double I shapes.
The two special-shaped steel beam webs 201 are connected with the web 101 through a bolt structure or a welding mode; when two special-shaped steel girder webs 201 are fixedly connected with the front side and the rear side of the end part of the web 101 respectively through a bolt structure, the horizontal section of the special-shaped steel girder webs 201 is trapezoid; when two special-shaped steel girder webs 201 are welded with the end portions of the web 101, the horizontal section of the special-shaped steel girder web 201 is triangular.
The front view of the special-shaped end beam is rectangular or trapezoidal as shown in fig. 5 and 6; the two special-shaped steel beam webs 201 are connected with the end parts of the web 101 through a bolt structure or a welding mode; as shown in fig. 1, which is a top view, fig. 5 and 6 are front views, the horizontal section is the left-right direction of fig. 1, the vertical section is the left-right direction of fig. 5 or 6, the upper cover plate 202 and the lower cover plate 203 of the profiled end beam after being split form trapezoid-like or rectangle-like with the right line of the steel column 5 and the left line of the web 101, and the ends of the upper cover plate 202 and the lower cover plate 203 are double-i-shaped relative to the epitaxial lateral vertical section of the profiled steel beam web 201.
The middle beam comprises a web plate 101, an upper flange plate 102 is connected to the top of the web plate 101, a lower flange plate 103 is connected to the bottom of the web plate 101, the upper flange plate 102 is welded with an upper cover plate 203, and the lower flange plate 103 is welded with a lower cover plate 203; when the profiled steel girder web 201 is connected with the web 101 through the bolt structure, the length of the upper flange plate 102 is greater than the length of the lower flange plate 103, the length of the web 101 is equal to the length of the upper flange plate 102, and both ends are flush.
The bolt structure comprises a clamping plate portion 301, the clamping plate portion 301 is a section of web plate of the profiled steel beam web 201, the web plate portion is close to the web plate 101, a first screw hole 302 is vertically formed in the overlapping position of the clamping plate portion 301 and the web plate 101, and a matching screw hole 305 is formed in the corresponding position of the web plate 101.
One end of the middle beam of the special-shaped end Liang Yuanli is fixedly connected with the steel column 5, and two special-shaped steel beam webs 201 are respectively connected with the front side and the rear side of the steel column 5 on the same horizontal plane; the special-shaped end beam is provided with an exhaust hole 6 which is convenient for pouring the exhaust of the space.
One end of the steel column 5 at the special-shaped end Liang Kaojin is disconnected, the left part and the right part of the disconnected part are fixedly connected through a first bolt clamping plate 303, second screw holes 304 are respectively formed in the first bolt clamping plate 303 at two ends corresponding to the disconnected part, and second bolts used for fixing the first bolt clamping plate 303 are arranged in the second screw holes 304; the special-shaped steel beam web 201 is disconnected with the upper cover plate 202 and the lower cover plate 203; the steel column 5 is provided with a bracket 4, and the bracket 4 is connected with a disconnection part close to the bracket; the steel column 5 is provided with pouring hole patterns which are not shown, and through holes for concrete circulation are formed in the steel column 5 corresponding to the pouring spaces; concrete flows into the special-shaped end beam from the steel column 5 through the steel pipe column therein, the three-section frame beam is matched with the steel column, and concrete is poured to jointly form the special-shaped steel pipe concrete beam.
The pouring holes can also be formed from the upper cover plate 203, and are provided with reinforcing measures, such as reinforcing pipes 7, whether from the steel columns 5 or from the upper cover plate 203.
As shown in fig. 7, a special-shaped composite beam comprises the special-shaped end beam, wherein the top of the special-shaped end beam is provided with a concrete floor slab 9, and an upper cover plate 202 is fixedly connected with the concrete floor slab 9 through a shearing-resistant connecting piece 8 such as a shearing-resistant screw.
As shown in fig. 8, an H-shaped composite beam comprises the intermediate beam, wherein the top of the intermediate beam is provided with a concrete floor 9, and an upper flange plate 102 is fixedly connected with the concrete floor 9 through a shear connector 8.
Compared with the traditional H-shaped steel beam or H-shaped steel composite beam, the special-shaped end Liang Xianzhu has the advantages that the bending resistance and the bending rigidity are improved, so that the structural deformation is reduced; the compressive material filled in the pouring space is utilized, the steel consumption of the lower cover plate can be reduced under the condition of negative bending moment, which is equivalent to the compressive performance of replacing steel by the compressive performance of the filling material, and under the same condition, compared with the existing steel consumption, the scheme can save 15% of steel consumption and reduce the cost; the stability of the special-shaped end beam is stronger, and the plastic hinge is formed under the action of the reciprocating bending moment, so that the shock resistance is better than that of the H-shaped steel.
The foregoing is merely illustrative of the present invention and not restrictive, and other modifications and equivalents thereof may occur to those skilled in the art without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a syllogic frame roof beam which characterized in that: the beam comprises a middle beam and two special-shaped end beams which are respectively connected with two ends of the middle beam; the middle beam is an H-shaped steel beam, and the horizontal section of the special-shaped end beam is trapezoid or triangle; the special-shaped end beam comprises two special-shaped steel beam webs (201) which are arranged correspondingly in the horizontal direction at intervals in the front-back direction, and the two special-shaped steel beam webs (201) are arranged vertically; the top of the special-shaped steel beam web plate (201) is provided with an upper cover plate (202), the bottom of the special-shaped steel beam web plate (201) is provided with a lower cover plate (203), and the two special-shaped steel beam web plates (201), the upper cover plate (202) and the lower cover plate (203) enclose a pouring space; and filling the pouring space with a compression-resistant material.
2. A three-section frame beam according to claim 1, characterized in that: the special-shaped end beam is a variable-section height beam, the joint of the special-shaped end beam and the middle beam is equal to the middle beam in height, and the height of the special-shaped end beam is gradually increased in the direction away from the middle beam.
3. A three-section frame beam according to claim 1, characterized in that: the upper cover plate (202) and the lower cover plate (203) are both trapezoidal.
4. A three-section frame beam according to claim 1, characterized in that: the middle beam comprises a web plate (101), the top of the web plate (101) is connected with an upper flange plate (102), and the bottom of the web plate (101) is connected with a lower flange plate (103); when two special-shaped steel girder webs (201) are respectively fixedly connected with the front side and the rear side of the end part of the web (101) through a bolt structure, the horizontal section of the special-shaped end part girder is trapezoid; when two special-shaped steel girder webs (201) are welded with the end parts of the webs (101), the horizontal section of the special-shaped end part girder is triangular.
5. A three-section frame beam according to claim 4, wherein: when the special-shaped steel beam web (201) is connected with the web (101) through a bolt structure, the length of the upper flange plate (102) is larger than that of the lower flange plate (103).
6. A three-section frame beam according to claim 1, characterized in that: one end of the middle beam of the special-shaped end Liang Yuanli is fixedly connected with the steel column (5).
7. A three-section frame beam according to claim 6, characterized in that: one end of the special-shaped end Liang Kaojin steel column (5) is disconnected, and the disconnected part is fixedly connected through a first bolt clamping plate (303); the steel column (5) is provided with a bracket (4), and the bracket (4) is connected with a disconnection part close to the bracket; and pouring holes communicated with the pouring space are formed in the side surfaces of the steel columns (5).
8. A three-section frame beam according to claim 6, characterized in that: and the upper cover plate (202) is provided with pouring holes communicated with the pouring space.
9. The utility model provides a dysmorphism combination beam which characterized in that: comprising the special-shaped end beam according to any one of claims 1-8, wherein the top of the special-shaped end beam is provided with a concrete floor (9), and the upper cover plate (202) is connected with the concrete floor (9) through a shearing connector (8)
Forming a composite beam.
10. An H-shaped composite beam, characterized in that: an intermediate beam according to any one of claims 1-8, wherein the top of the intermediate beam is provided with a concrete floor (9), and the upper flange plate (102) forms a composite beam with the concrete floor (9) via the shear connectors (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310739406.0A CN116771035A (en) | 2023-06-21 | 2023-06-21 | Three-section type frame beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310739406.0A CN116771035A (en) | 2023-06-21 | 2023-06-21 | Three-section type frame beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116771035A true CN116771035A (en) | 2023-09-19 |
Family
ID=88012905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310739406.0A Pending CN116771035A (en) | 2023-06-21 | 2023-06-21 | Three-section type frame beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116771035A (en) |
-
2023
- 2023-06-21 CN CN202310739406.0A patent/CN116771035A/en active Pending
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