CN108018995B - Double-connecting beam structure and construction method thereof - Google Patents
Double-connecting beam structure and construction method thereof Download PDFInfo
- Publication number
- CN108018995B CN108018995B CN201711206122.6A CN201711206122A CN108018995B CN 108018995 B CN108018995 B CN 108018995B CN 201711206122 A CN201711206122 A CN 201711206122A CN 108018995 B CN108018995 B CN 108018995B
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- connecting beam
- double
- hole body
- square steel
- steel pipe
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- 238000010276 construction Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 8
- 238000010008 shearing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007123 defense Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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
- E04C3/29—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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention belongs to the field of civil engineering, and discloses a double-connecting-beam structure, which comprises a square steel pipe, wherein a through hole body is arranged in the middle position of the square steel pipe along the length direction, concrete is filled in the square steel pipe positioned outside the through hole body to form a double-connecting-beam, the double-connecting-beam comprises an upper connecting beam positioned above the through hole body and a lower connecting beam positioned below the through hole body, and the parts of the upper connecting beam and the lower connecting beam positioned at two ends of the through hole body are correspondingly connected. The construction method of the double-connecting beam structure ensures the integrity of a double-connecting beam shear wall structure system, effectively reduces bending moment born by the connecting beam and reduces the probability of brittle failure of the connecting beam in an earthquake.
Description
Technical Field
The invention belongs to the field of civil engineering, and particularly relates to a double-connecting-beam structure and a construction method thereof.
Background
The connecting beam refers to a beam which is connected with the wall limb in the plane of the wall limb in the shear wall structure or the frame-shear wall structure. The connecting beam is used as a force transfer component between the wall limbs, has important influence on the earthquake resistance of the structure, is used as a first defense line for earthquake resistance and energy consumption of the structure, has a crucial effect on improving the stress performance of the shear wall by reasonably designing the connecting beam in order to avoid the premature occurrence of the damage of the wall limbs, and is of a single connecting beam or double connecting beam structure, but has the following defects:
the traditional Shan Lianliang has the characteristics of small span and large section, so that the single-connection beam has larger rigidity, and under the action of an earthquake, the shearing force and the bending moment are very large, so that the section reinforcement is difficult, the brittle fracture is easy to occur, and the defect of the traditional Shan Lianliang is larger.
The traditional double-connecting beam has the characteristics of reduced section and smaller rigidity, and can effectively reduce bending moment and shearing force, but is used as a force transfer component between the walls and limbs, and the constraint of the double-connecting beam on the walls and limbs is reduced, so that the integrity of the double-connecting beam is reduced compared with a corresponding Shan Lianliang shear wall structure, and the structure is unfavorable in earthquake resistance.
Disclosure of Invention
In order to solve the technical problems, the invention provides the double-connecting-beam structure and the construction method thereof, which ensure the integrity of a double-connecting-beam shear wall structure system, effectively reduce bending moment born by connecting beams and reduce the probability of brittle failure of the connecting beams in an earthquake.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a double-connecting beam structure, which comprises a square steel pipe, wherein a through hole body is arranged at the middle position of the square steel pipe along the length direction, concrete is filled in the square steel pipe positioned outside the through hole body to form a double-connecting beam, the double-connecting beam comprises an upper connecting beam positioned above the through hole body and a lower connecting beam positioned below the through hole body, and the parts of the upper connecting beam and the lower connecting beam positioned at two ends of the through hole body are correspondingly connected;
optionally, the cross section of the through hole body is rectangular;
optionally, the span of the double connecting beam is L, the span of the through hole body is 0.5L, and the distance between the center line of the through hole body and the shear wall is 0.5L;
optionally, the lengths of the upper connecting beam and the lower connecting beam are equal;
optionally, the lengths of the upper connecting beam and the lower connecting beam are both greater than L;
optionally, the invention also provides a construction method of the double-connecting beam structure, which comprises the following steps:
A. manufacturing square steel pipes according to the design size;
B. a through hole body is arranged at the middle position along the length direction of the square steel pipe;
C. one end of the square steel pipe is packaged by a steel pipe template, concrete is filled in the square steel pipe outside the through hole, and the square steel pipe is vibrated tightly to form a double-connection beam;
D. removing the steel pipe templates, transporting the prefabricated double-connection beams to the site, placing the double-connection beams between two shear wall templates, and connecting the double-connection beams with the two shear wall templates;
E. and pouring concrete into the two shear wall templates to obtain two shear walls, carrying out standard maintenance on the concrete poured into the two shear wall templates, and removing the shear wall templates after the concrete strength reaches the requirement.
Compared with the prior art, the invention has the following technical effects:
the double-connecting beam Liang Tianchong provided by the invention is provided with concrete, so that an upper connecting beam and a lower connecting beam are formed, the upper connecting beam and the lower connecting beam form a double-layer structure, the bending moment born by the connecting beams can be effectively reduced, the integrity of a double-connecting beam shear wall structure system is ensured, the probability of brittle failure of the connecting beams in an earthquake is reduced, and the double-connecting beam shear wall structure has high practical value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a double beam structure in an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of a connecting beam 1-1 in a double connecting beam structure in an embodiment of the invention;
FIG. 3 is a schematic cross-sectional view of a connecting beam 2-2 in a double connecting beam structure in an embodiment of the invention;
reference numerals illustrate: 10. an upper connecting beam; 20. a lower connecting beam; 30. square steel pipes; 40. a through-hole body; 50. a shear wall; 60. and (3) concrete.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a double-connecting beam structure and a construction method thereof, which ensure the integrity of a double-connecting beam shear wall structure system, effectively reduce bending moment born by connecting beams, reduce the probability of brittle failure of the connecting beams in an earthquake and have high practical value.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
The invention provides a double-connecting beam structure, which comprises a square steel pipe 30, wherein a through hole body 40 is arranged at the middle position of the square steel pipe 30 along the length direction, concrete 60 is filled in the square steel pipe 30 positioned outside the through hole body 40 to form a double-connecting beam, the double-connecting beam comprises an upper connecting beam 10 positioned above the through hole body 40 and a lower connecting beam 20 positioned below the through hole body 40, parts of the upper connecting beam 10 and the lower connecting beam 20 positioned at two ends of the through hole body 40 are correspondingly connected, and concrete is filled between the outside of the through hole body 40 and the inside of the square steel pipe 30, so that the integrity of the double-connecting beam structure system is ensured, the probability of brittle failure of the connecting beam in an earthquake is reduced, and the energy consumption capability is greatly enhanced.
In the embodiment of the present invention, the cross section of the through hole body 40 is set to be a rectangular structure, as shown in fig. 1, the introduction of the through hole body 40 breaks down the large-section connecting beam into two pieces, so that the moment of inertia of the connecting beam can be greatly reduced under the condition that the shearing-resistant cross section area is basically unchanged, the bending moment born by the connecting beam is effectively reduced, the probability of brittle failure of the connecting beam in an earthquake is reduced, and compared with the traditional single connecting beam structure, the method has great advantages and greatly improved ductility.
Preferably, the span of the double connecting beam is L, that is, the interval between two shear walls is L, in the specific embodiment of the present invention, in order to further ensure neutrality, improve the stress performance of the connecting beam, the lengths of the upper connecting beam 10 and the lower connecting beam 20 are set to be equal, the span of the through hole body 40 is 0.5L, the distance between the center line of the through hole body 40 and the shear wall 50 is 0.5L, and in order to further enhance the integrity with the wall limbs of the shear wall, the lengths of the upper connecting beam 10 and the lower connecting beam 20 are both greater than L, that is, the spans between the upper connecting beam 10 and the lower connecting beam 20 are both greater than the span interval between the two shear walls, thereby further ensuring the centering and prolonging the service life of the connecting beam structure.
The invention provides a construction method of a double-connecting beam structure, which comprises the following steps:
A. manufacturing square steel pipes 30 according to the design dimensions;
B. a through-hole body 40 is provided at a middle position along the length direction of the square steel tube 30;
C. one end of the square steel pipe 30 is packaged by a steel pipe template, concrete 60 is filled in the square steel pipe 30 positioned outside the through hole body 40, and the square steel pipe is vibrated tightly to form a double-connection beam;
D. dismantling the steel pipe templates, transporting the prefabricated double-connection beams to the site, placing the double-connection beams between the two shear wall templates, and connecting the double-connection beams with the two shear wall templates;
E. and pouring concrete into the two shear wall templates to obtain two shear walls 50, carrying out standard maintenance on the concrete poured into the two shear wall templates, and removing the shear wall templates after the concrete strength reaches the requirement.
Therefore, the double-connecting beam structure and the construction method thereof ensure the integrity of a double-connecting beam shear wall structure system, effectively reduce bending moment born by the connecting beam, reduce the probability of damaging the connecting beam in an earthquake, and have high practical value.
It should be noted that the cross section of the through hole body of the double connecting beam is not necessarily rectangular, but can be round or have other shapes with horizontal symmetry and axial symmetry.
The principles and embodiments of the present invention have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present invention and its core ideas; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (6)
1. The utility model provides a pair of roof beam structure that links which characterized in that: the concrete-filled square steel tube comprises a square steel tube (30), wherein a through hole body (40) is arranged in the middle of the square steel tube (30) along the length direction, concrete (60) is filled in the square steel tube (30) outside the through hole body (40) to form a double-connecting beam, the double-connecting beam comprises an upper connecting beam (10) positioned above the through hole body (40) and a lower connecting beam (20) positioned below the through hole body (40), and the upper connecting beam (10) and the lower connecting beam (20) are correspondingly connected at the parts positioned at two ends of the through hole body (40); the span of the through hole body (40) along the length direction of the square steel pipe (30) is smaller than the span of the square steel pipe (30), and the through hole body (40) penetrates through the square steel pipe (30) along the width direction of the square steel pipe (30).
2. The double-girder construction according to claim 1, wherein: the cross section of the through hole body (40) is rectangular.
3. The double-girder construction according to claim 1, wherein: the span of the double connecting beam is L, the span of the through hole body (40) is 0.5L, and the distance between the central line of the through hole body (40) and the shear wall (50) is 0.5L.
4. A double girder construction according to claim 3, wherein: the upper connecting beam (10) and the lower connecting beam (20) are equal in length.
5. The double-girder construction according to claim 4, wherein: the lengths of the upper connecting beam (10) and the lower connecting beam (20) are both larger than L.
6. A construction method based on the double-connecting beam structure according to any one of claims 1 to 5, characterized in that: the method comprises the following steps:
manufacturing square steel pipes (30) according to the design size;
a through hole body (40) is arranged at the middle position along the length direction of the square steel tube (30);
one end of the square steel pipe (30) is packaged by a steel pipe template, concrete (60) is filled in the square steel pipe (30) positioned outside the through hole body (40), and the square steel pipe is compacted by vibration to form a double-connection beam;
removing the steel pipe templates, transporting the prefabricated double-connection beams to the site, placing the double-connection beams between two shear wall templates, and connecting the double-connection beams with the two shear wall templates;
and pouring concrete into the two shear wall templates to obtain two shear walls (50), carrying out standard curing on the concrete poured into the two shear wall templates, and removing the shear wall templates after the concrete strength reaches the requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206122.6A CN108018995B (en) | 2017-11-27 | 2017-11-27 | Double-connecting beam structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206122.6A CN108018995B (en) | 2017-11-27 | 2017-11-27 | Double-connecting beam structure and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108018995A CN108018995A (en) | 2018-05-11 |
| CN108018995B true CN108018995B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711206122.6A Active CN108018995B (en) | 2017-11-27 | 2017-11-27 | Double-connecting beam structure and construction method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950902A (en) * | 1973-09-20 | 1976-04-20 | Stout Robert K | Concrete structure including modular concrete beams |
| CN201474109U (en) * | 2009-04-16 | 2010-05-19 | 姚攀峰 | Prefabricated and cast-in-situ mixed dual binding beams |
| CN103061453A (en) * | 2013-01-29 | 2013-04-24 | 西安建筑科技大学 | Double-perforated steel plate-concrete combined coupling beam |
| CN105569266A (en) * | 2016-01-31 | 2016-05-11 | 深圳大学 | Concrete combined connecting beam |
| AU2014357763A1 (en) * | 2013-12-06 | 2016-05-12 | Hobi Endustriyel Urun Tasarim Uygulama Uretim Ithalat Ihracat Limited Sirketi | Foldable brick with rope attachments and detachable wall building system |
| CN105696790A (en) * | 2016-03-01 | 2016-06-22 | 中国建筑第二工程局有限公司 | Double-layer connecting beam opening formwork system and construction method thereof applied to double-layer connecting beam |
| CN106869403A (en) * | 2017-04-13 | 2017-06-20 | 深圳市建筑设计研究总院有限公司 | The prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer |
| CN207568070U (en) * | 2017-11-27 | 2018-07-03 | 深圳大学 | A kind of doubly-linked girder construction |
-
2017
- 2017-11-27 CN CN201711206122.6A patent/CN108018995B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950902A (en) * | 1973-09-20 | 1976-04-20 | Stout Robert K | Concrete structure including modular concrete beams |
| CN201474109U (en) * | 2009-04-16 | 2010-05-19 | 姚攀峰 | Prefabricated and cast-in-situ mixed dual binding beams |
| CN103061453A (en) * | 2013-01-29 | 2013-04-24 | 西安建筑科技大学 | Double-perforated steel plate-concrete combined coupling beam |
| AU2014357763A1 (en) * | 2013-12-06 | 2016-05-12 | Hobi Endustriyel Urun Tasarim Uygulama Uretim Ithalat Ihracat Limited Sirketi | Foldable brick with rope attachments and detachable wall building system |
| CN105569266A (en) * | 2016-01-31 | 2016-05-11 | 深圳大学 | Concrete combined connecting beam |
| CN105696790A (en) * | 2016-03-01 | 2016-06-22 | 中国建筑第二工程局有限公司 | Double-layer connecting beam opening formwork system and construction method thereof applied to double-layer connecting beam |
| CN106869403A (en) * | 2017-04-13 | 2017-06-20 | 深圳市建筑设计研究总院有限公司 | The prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer |
| CN207568070U (en) * | 2017-11-27 | 2018-07-03 | 深圳大学 | A kind of doubly-linked girder construction |
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| CN108018995A (en) | 2018-05-11 |
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