CN110778025A - Steel pipe-spliced wood-recycled concrete composite column - Google Patents
Steel pipe-spliced wood-recycled concrete composite column Download PDFInfo
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- CN110778025A CN110778025A CN201911092061.4A CN201911092061A CN110778025A CN 110778025 A CN110778025 A CN 110778025A CN 201911092061 A CN201911092061 A CN 201911092061A CN 110778025 A CN110778025 A CN 110778025A
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- steel pipe
- wood
- spliced
- composite column
- recycled concrete
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 97
- 239000010959 steel Substances 0.000 title claims abstract description 97
- 239000002131 composite material Substances 0.000 title claims abstract description 37
- 239000002023 wood Substances 0.000 claims abstract description 63
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid 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
- E04C3/30—Columns; Pillars; Struts
- E04C3/36—Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials
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- 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
- E04B1/94—Protection against other undesired influences or dangers against fire
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
A steel pipe-spliced wood-recycled concrete composite column belongs to the technical field of building construction. The composite column comprises an outer steel pipe, a wood cage, an inner steel pipe and a spliced wood structure, wherein the inner steel pipe is sleeved on the spliced wood structure, core recycled concrete is poured between the inner steel pipe and the spliced wood structure, the wood cage is arranged between the inner steel pipe and the outer steel pipe, and annular recycled concrete is poured to form the steel pipe-spliced wood-recycled concrete composite column. The invention can fundamentally improve the compression resistance of the composite column, improve the bearing capacity and the fire resistance of the composite column and prolong the fire resistance time of the composite column. The technology is energy-saving and environment-friendly, is simple and easy to master, improves the integrity, and more effectively improves the fire resistance of the composite column.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a steel pipe-spliced wood-recycled concrete composite column.
Background
The wood structure building is taken as the mainstream of ancient buildings in China, and has long history culture and use value. The wood is used as a renewable energy source, and has the characteristics of environmental protection, humidity regulation, carbon fixation, economy, applicability and the like. Wood is less polluting during processing, construction and demolition than other materials. With the increase of the research on the wood structure building in China, the wood structure is favored by more and more people and enterprises in China.
The structural technology researches that the small-section-size components are spliced into the large-section-size components, and considering that the large-section-size wood is expensive, the technology can reduce the cost and save energy by utilizing the small-section-size wood. The steel pipe-spliced wood-recycled concrete composite column provided by the technology is analyzed from the mechanical angle, the compressive property of the combined composite column is superior to that of a non-spliced state, and the integrity is improved to some extent. From the analysis of combustion angle, the use of steel pipes and recycled concrete can avoid the wood columns from being directly heated in the fire, thereby greatly improving the bearing capacity and the fire resistance of the member and prolonging the fire resistance time of the member. Meanwhile, the recycled concrete can be recycled, so that the pollution is reduced; and the small-section square wood is used for replacing the steel bar, so that the energy can be saved and the cost can be reduced.
The steel pipe-spliced wood-recycled concrete composite column technology is energy-saving, environment-friendly, economical and applicable, effectively improves the compression resistance and the fire resistance of the composite column, and achieves the purpose of prolonging the fire-resistant time of the composite column.
Disclosure of Invention
Aiming at the technical problems, the steel pipe-spliced wood-recycled concrete composite column is provided, the small-section-size components are spliced into the large-section-size components, the compression resistance of the composite column is improved, the bearing capacity and the fire resistance of the composite column are improved, and the fire resistance time of the composite column is prolonged.
The purpose of the invention is realized by the following technical scheme:
the invention relates to a steel pipe-spliced wood-recycled concrete composite column which comprises an outer layer steel pipe, a wood cage, an inner layer steel pipe and a spliced wood structure, wherein the inner layer steel pipe is sleeved on the spliced wood structure, core recycled concrete is poured between the inner layer steel pipe and the spliced wood structure, the wood cage is arranged between the inner layer steel pipe and the outer layer steel pipe, and annular recycled concrete is poured to form the steel pipe-spliced wood-recycled concrete composite column.
Preferably, the spliced wood structure comprises a Y-shaped steel plate, three logs and a plurality of connecting bolts, connecting bolt holes are formed in the Y-shaped steel plate, the three logs are attached to each other in a triangular mode, reserved bolt holes corresponding to the Y-shaped steel plate and notches for placing the Y-shaped steel plate are formed in the three logs, and the three logs are spliced through the bolts and the Y-shaped steel plate to form the spliced wood structure.
Preferably, the reserved bolt holes formed in the Y-shaped steel plate are the same in size and distance; the bolt holes formed in the three logs are the same as the bolt holes formed in the Y-shaped steel plate in size, distance and position; the height of the notch is the same as the length of the Y-shaped steel plate.
Preferably, the diameter of the reserved bolt hole formed in the log is 1-2 mm larger than the diameter of the bolt.
Preferably, the bolt is arranged in a log of the spliced wood structure.
Preferably, the wood cage comprises reinforcing steel bars and a plurality of connecting wood blocks arranged along the circumference of the square wood reinforcing steel bars, and the connecting wood blocks arranged at even intervals are connected into a cylindrical shape through the circumferentially connected reinforcing steel bars.
The invention has the beneficial effects that:
according to the invention, the spliced wood structure is sleeved in the inner layer steel pipe, the core recycled concrete is poured between the inner layer steel pipe and the spliced wood structure, the wood cage is arranged between the inner layer steel pipe and the outer layer steel pipe, and the annular recycled concrete is poured to form the steel pipe-spliced wood-recycled concrete composite column. The compression resistance of the composite column can be fundamentally improved, the bearing capacity and the fire resistance of the composite column are improved, and the fire resistance time of the composite column is prolonged. The technology is energy-saving and environment-friendly, is simple and easy to master, improves the integrity, and more effectively improves the fire resistance of the composite column.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a top view;
FIG. 3 is a schematic view of a Y-shaped steel plate connector-bolt connection;
fig. 4 is a schematic view of a cut-out splice wood.
In the figure: the concrete is characterized in that the concrete comprises 1 outer-layer steel pipes, 2 annular recycled concrete, 3 connecting wood blocks, 4 reinforcing steel bars, 5 inner-layer steel pipes, 6 core recycled concrete, 7 splicing wood structures, 8 bolts, 9Y-shaped steel plates and 10 round wood.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example (b): as shown in fig. 1-4, the steel tube-spliced wood-recycled concrete composite column of the present invention comprises an outer steel tube 1, a wood cage, an inner steel tube 5 and a spliced wood structure 7, wherein the inner steel tube 5 is sleeved on the spliced wood structure 7, a core recycled concrete 6 is poured between the inner steel tube 5 and the spliced wood structure 7, the wood cage is arranged between the inner steel tube 5 and the outer steel tube 1, and an annular recycled concrete 2 is poured to form the steel tube-spliced wood-recycled concrete composite column.
Preferably, as shown in fig. 3, the spliced wood structure 7 of the present embodiment includes a Y-shaped steel plate 9, three logs 10 and a plurality of connecting bolts 8, the Y-shaped steel plate 9 is provided with connecting bolt holes, the three logs 10 are attached in a triangular shape, the logs 10 of the present embodiment are solid logs, the three logs 10 are all provided with bolt holes corresponding to the Y-shaped steel plate 9 and notches for placing the Y-shaped steel plate 9, the bolt holes for installing the bolts 8 are reserved in the logs 10, the Y-shaped steel plate 9 is inserted into the three logs 10, the Y-shaped steel plate 9 and the three logs 10 are spliced together through the bolts 8, and the bolts 8 are arranged inside the logs 10 to form the spliced wood structure 7. The diameter of a bolt hole reserved on the log 10 is 1-2 mm larger than that of the bolt 8.
The reserved bolt holes formed in the Y-shaped steel plate 9 are the same in size and distance; the reserved bolt holes formed in the three logs 10 are the same as the bolt holes formed in the Y-shaped steel plate 9 in size, distance and position; the height of the notch is the same as the length of the Y-shaped steel plate 9. The bolts 8 are placed in the logs 10 of the spliced wood structure 7. The bolts are arranged on the Y-shaped steel plate 9 according to the mode of figure 3, and the bolt hole distance and the hole diameter are determined according to engineering conditions and corresponding specifications; the cross-sectional dimension of the Y-shaped steel plate 9 is set according to the stress condition and the specification. The integrity of the spliced wood structure 7 is improved compared with that of the spliced wood structure without splicing, and the bearing capacity and the fire resistance of the spliced wood structure 7 are improved; meanwhile, the large-section-size wood is expensive, the growth years are long, the large-section size is spliced by the small-section-size wood, the cost can be reduced, and the energy can be saved.
As shown in fig. 2, the wooden cage includes a steel bar 4 and a plurality of connecting blocks 3 arranged along the circumference of the steel bar 4, and the connecting blocks 3 arranged at even intervals are connected into a cylindrical shape through the steel bar 4 connected in a circumferential direction.
During construction, three steel plates are welded into a Y-shaped steel plate 9, bolt holes are formed in the Y-shaped steel plate 9, and corresponding notches and bolt holes are formed in three logs 10; inserting a Y-shaped steel plate 9 into the notches of the three logs 10, keeping the logs 10 and the Y-shaped steel plate 9 at vertical positions all the time in the installation process, and splicing and fixing the logs 10 and the Y-shaped steel plate 9 through bolts 8 to form a spliced wood structure 7;
the inner layer steel pipe 5 is sleeved outside the spliced wood structure 7, and the small-section-size connecting wood blocks 3 (which can be small-section square wood or small-section round wood) which are uniformly arranged at intervals are connected into a cylindrical shape by using the annularly-connected square wood reinforcing steel bars 4 to form the wood cage. Small cross-sectional dimension square timber or log replace the reinforcing bar effect, timber green, reduce cost, utilize the square timber reinforcing bar 4 of hoop connection to be connected together all small cross-sectional dimension square timber 3, form the wooden cage, replace the reinforcing bar effect, improve the bearing capacity.
And then placing the wooden cage outside the inner steel pipe 5, sleeving the wooden cage with the outer steel pipe 1, finally pouring annular recycled concrete 2 between the inner steel pipe 5 and the outer steel pipe 1, and pouring core recycled concrete 6 between the inner steel pipe 5 and the round wood 10 to form the steel pipe-spliced wood-recycled concrete composite column.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (6)
1. The steel pipe-spliced wood-recycled concrete composite column is characterized in that: the composite column comprises an outer steel pipe, a wood cage, an inner steel pipe and a spliced wood structure, wherein the inner steel pipe is sleeved on the spliced wood structure, core recycled concrete is poured between the inner steel pipe and the spliced wood structure, the wood cage is arranged between the inner steel pipe and the outer steel pipe, and annular recycled concrete is poured to form the steel pipe-spliced wood-recycled concrete composite column.
2. The steel pipe-spliced wood-recycled concrete composite column according to claim 1, wherein: the spliced wood structure comprises a Y-shaped steel plate, three logs and a plurality of connecting bolts, connecting bolt holes are formed in the Y-shaped steel plate, the three logs are attached to each other in a triangular mode, reserved bolt holes corresponding to the Y-shaped steel plate and notches for placing the Y-shaped steel plate are formed in the three logs, the three logs are spliced through the bolts and the Y-shaped steel plate, and the spliced wood structure is formed.
3. The steel pipe-spliced wood-recycled concrete composite column according to claim 1, wherein: the reserved bolt holes formed in the Y-shaped steel plate are the same in size and distance; the bolt holes formed in the three logs are the same as the bolt holes formed in the Y-shaped steel plate in size, distance and position; the height of the notch is the same as the length of the Y-shaped steel plate.
4. The steel pipe-spliced wood-recycled concrete composite column according to claim 1, wherein: the diameter of a reserved bolt hole formed in the log is 1-2 mm larger than that of the bolt.
5. The steel pipe-spliced wood-recycled concrete composite column according to claim 1, wherein: the bolt is arranged in the log of the spliced wood structure.
6. The steel pipe-spliced wood-recycled concrete composite column according to claim 1, wherein: the wooden cage comprises reinforcing steel bars and a plurality of connecting wooden blocks arranged along the circumference of the square wood reinforcing steel bars, and the plurality of connecting wooden blocks which are uniformly arranged at intervals are connected into a cylindrical shape through the reinforcing steel bars which are connected in an annular mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092061.4A CN110778025A (en) | 2019-11-11 | 2019-11-11 | Steel pipe-spliced wood-recycled concrete composite column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092061.4A CN110778025A (en) | 2019-11-11 | 2019-11-11 | Steel pipe-spliced wood-recycled concrete composite column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110778025A true CN110778025A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911092061.4A Pending CN110778025A (en) | 2019-11-11 | 2019-11-11 | Steel pipe-spliced wood-recycled concrete composite column |
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| CN (1) | CN110778025A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120088237A (en) * | 2011-01-31 | 2012-08-08 | (주)협성엔지니어링 | Column Complxed with Concrete and steel tube |
| CN104775566A (en) * | 2015-03-26 | 2015-07-15 | 广东省建筑设计研究院 | Built-in core column composite wood structure column for building structures |
| CN105804255A (en) * | 2016-05-17 | 2016-07-27 | 福建工程学院 | Assembling structure for prefabricated concrete beam and composite steel pipe concrete column, and construction method for assembling structure |
| CN106013421A (en) * | 2016-06-15 | 2016-10-12 | 黄山学院 | Building method for steel-wood combined assembling type fiber concrete building |
| CN207959712U (en) * | 2017-11-28 | 2018-10-12 | 湖南大学 | Novel fabricated bamboo and wood-concrete combination beam |
| CN208088511U (en) * | 2017-06-01 | 2018-11-13 | 江苏铭远杆塔有限公司 | The combination assembled building element of steel-wood structure |
| US20190127966A1 (en) * | 2017-11-01 | 2019-05-02 | Marlon Howard Stewart | Permanent forms for composite construction columns and beams and method of building construction |
| CN211172712U (en) * | 2019-11-11 | 2020-08-04 | 沈阳建筑大学 | Steel pipe-spliced wood-recycled concrete composite column |
-
2019
- 2019-11-11 CN CN201911092061.4A patent/CN110778025A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120088237A (en) * | 2011-01-31 | 2012-08-08 | (주)협성엔지니어링 | Column Complxed with Concrete and steel tube |
| CN104775566A (en) * | 2015-03-26 | 2015-07-15 | 广东省建筑设计研究院 | Built-in core column composite wood structure column for building structures |
| CN105804255A (en) * | 2016-05-17 | 2016-07-27 | 福建工程学院 | Assembling structure for prefabricated concrete beam and composite steel pipe concrete column, and construction method for assembling structure |
| CN106013421A (en) * | 2016-06-15 | 2016-10-12 | 黄山学院 | Building method for steel-wood combined assembling type fiber concrete building |
| CN208088511U (en) * | 2017-06-01 | 2018-11-13 | 江苏铭远杆塔有限公司 | The combination assembled building element of steel-wood structure |
| US20190127966A1 (en) * | 2017-11-01 | 2019-05-02 | Marlon Howard Stewart | Permanent forms for composite construction columns and beams and method of building construction |
| CN207959712U (en) * | 2017-11-28 | 2018-10-12 | 湖南大学 | Novel fabricated bamboo and wood-concrete combination beam |
| CN211172712U (en) * | 2019-11-11 | 2020-08-04 | 沈阳建筑大学 | Steel pipe-spliced wood-recycled concrete composite column |
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