CN111321844A - Hollow sandwich steel pipe concrete beam with eccentrically placed inner pipe - Google Patents
Hollow sandwich steel pipe concrete beam with eccentrically placed inner pipe Download PDFInfo
- Publication number
- CN111321844A CN111321844A CN201911156695.1A CN201911156695A CN111321844A CN 111321844 A CN111321844 A CN 111321844A CN 201911156695 A CN201911156695 A CN 201911156695A CN 111321844 A CN111321844 A CN 111321844A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- concrete
- pipe
- concrete beam
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 44
- 239000010959 steel Substances 0.000 title claims abstract description 44
- 239000004567 concrete Substances 0.000 title claims abstract description 29
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 239000011229 interlayer Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 239000011150 reinforced concrete Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
Images
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
- E04C3/29—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)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention relates to a hollow interlayer steel pipe concrete beam with an eccentrically placed inner pipe, belonging to the field of engineering. The steel pipe concrete beam comprises an outer steel pipe 1, an inner steel pipe 2 and concrete 3, wherein the inner steel pipe is eccentrically arranged in a tensile area of the beam. This template is knitted to steel core concrete roof beam and process of vibrating is more simple and convenient than conventional reinforced concrete roof beam, through interior steel pipe replacement ordinary reinforced concrete roof beam's the tensile district reinforcing bar, interior cavity region need not to pour concrete, and the cable passageway can be regarded as to the inner tube region simultaneously to can regard as the prefabricated component of an assembly type structure, have advantages such as faster construction speed, dead weight are light, the installation is convenient.
Description
Technical Field
The invention relates to a hollow interlayer steel pipe concrete beam with an eccentrically placed inner pipe, belonging to the technical field of engineering.
Background
A beam is one of the most important elements in a building frame. The beams carry the entire weight of the elements of the superstructure and the roof, the most important part of the superstructure. Most beams are reinforced concrete beams, using a structure made of steel and concrete. The reinforcing steel bar bears the tensile force, and the concrete bears the pressure. But because of the reasons of materials, production and installation, the method takes labor and templates, has long period, complicated working procedures and inconvenient use.
The fabricated building has high construction speed and low production cost, and is rapidly popularized and developed all over the world. A large number of building parts are produced and processed by workshops, and the types of components mainly comprise: external wall panel, interior wallboard, superimposed sheet, balcony, air conditioner board, stair, precast beam, precast column etc..
Disclosure of Invention
The invention aims to solve the problems of complicated construction process, low speed, troublesome pipeline laying and the like of the conventional reinforced concrete beam, the inner steel pipe is used for replacing a steel bar in a tension area, a hollow area in the tension area has no concrete, the self weight is light, the installation is convenient, the hollow area of the inner steel pipe can be used as a cable channel, and the beam can be used as a prefabricated component of an assembly type building and has the advantages of labor and time saving.
The technical scheme of the invention is as follows: an inner pipe eccentric placement type hollow interlayer steel pipe concrete beam comprises an outer steel pipe, an inner steel pipe and concrete. The inner steel pipe is eccentrically arranged on the tensioned side, a hollow interlayer is formed between the outer steel pipe and the inner steel pipe, and concrete is poured into the hollow interlayer and is vibrated to be compact; in order to ensure that the inner pipe and the outer pipe are not rusted, the thickness of the concrete layer of the inner pipe is not less than 5mm, and the outer pipe is protected by fireproof and antirust paint.
The cross section of the outer steel pipe is square.
The section of the inner steel pipe is round or square.
And filling the hollow interlayer with the concrete and vibrating the concrete to be compact.
The beam and the steel column are connected in a welding or bolt mode.
Drawings
Fig. 1 is a schematic cross-sectional view of a steel pipe concrete beam according to the present invention.
FIG. 2 is a schematic view showing the arrangement of the inner steel pipe and the outer steel pipe.
In the figure, 1 is an outer steel pipe, 2 is an inner steel pipe, and 3 is concrete.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Processing the outer steel pipe and the inner steel pipe according to the designed size as shown in figure 1 and figure 2; fixing the outer steel pipe and the inner steel pipe to form a hollow interlayer as shown in figure 2; pouring concrete into the hollow interlayer and vibrating to compact the concrete; when the concrete curing reaches the design strength value, the hollow sandwich steel pipe concrete beam with the eccentrically placed inner pipe can be formed.
Claims (4)
1. The utility model provides an eccentric formula cavity intermediate layer steel pipe concrete beam of placing of inner tube which characterized in that, includes outer steel pipe, interior steel pipe, concrete, outer steel pipe cross-section is square, and interior steel pipe cross-section is square or circular, the concrete is annotated and is filled the cavity intermediate layer and vibrate closely knit.
2. The hollow sandwich steel pipe concrete beam with the eccentrically placed inner pipes is characterized in that the inner steel pipes are eccentrically arranged on the tensioned side to replace tensioned reinforcing steel bars, and the area of the inner steel pipes is used as a cable channel.
3. An eccentric inner pipe placed hollow sandwich steel pipe concrete beam is characterized in that the member can be manufactured into an assembly type building member.
4. The hollow sandwich steel pipe concrete beam with the eccentrically placed inner pipe is characterized in that the inner pipe and the outer pipe are connected with a steel column in a welding or bolt connection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911156695.1A CN111321844A (en) | 2019-11-22 | 2019-11-22 | Hollow sandwich steel pipe concrete beam with eccentrically placed inner pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911156695.1A CN111321844A (en) | 2019-11-22 | 2019-11-22 | Hollow sandwich steel pipe concrete beam with eccentrically placed inner pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111321844A true CN111321844A (en) | 2020-06-23 |
Family
ID=71166874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911156695.1A Pending CN111321844A (en) | 2019-11-22 | 2019-11-22 | Hollow sandwich steel pipe concrete beam with eccentrically placed inner pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111321844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232392A (en) * | 2021-12-14 | 2022-03-25 | 中铁第四勘察设计院集团有限公司 | Concrete-filled steel tube sleeper suitable for ballastless track, construction tool and construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202039455U (en) * | 2010-11-12 | 2011-11-16 | 北京工业大学 | Hollow sandwich steel pipe active powder concrete composite component |
| CN102433962A (en) * | 2011-10-19 | 2012-05-02 | 沈阳建筑大学 | Square covering square hollow sandwiched carbon fiber steel rib-steel pipe concrete combined column |
| CN106593003A (en) * | 2016-12-23 | 2017-04-26 | 武汉大学 | Method for reinforcing steel pipe column through external-sleeving square steel pipe concrete |
| CN211622269U (en) * | 2019-11-22 | 2020-10-02 | 华东交通大学 | Hollow sandwich steel pipe concrete beam with eccentrically placed inner pipe |
-
2019
- 2019-11-22 CN CN201911156695.1A patent/CN111321844A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202039455U (en) * | 2010-11-12 | 2011-11-16 | 北京工业大学 | Hollow sandwich steel pipe active powder concrete composite component |
| CN102433962A (en) * | 2011-10-19 | 2012-05-02 | 沈阳建筑大学 | Square covering square hollow sandwiched carbon fiber steel rib-steel pipe concrete combined column |
| CN106593003A (en) * | 2016-12-23 | 2017-04-26 | 武汉大学 | Method for reinforcing steel pipe column through external-sleeving square steel pipe concrete |
| CN211622269U (en) * | 2019-11-22 | 2020-10-02 | 华东交通大学 | Hollow sandwich steel pipe concrete beam with eccentrically placed inner pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232392A (en) * | 2021-12-14 | 2022-03-25 | 中铁第四勘察设计院集团有限公司 | Concrete-filled steel tube sleeper suitable for ballastless track, construction tool and construction method |
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