CN102134891A - Novel dual-hollow superimposed structural member - Google Patents
Novel dual-hollow superimposed structural member Download PDFInfo
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- CN102134891A CN102134891A CN 201110042833 CN201110042833A CN102134891A CN 102134891 A CN102134891 A CN 102134891A CN 201110042833 CN201110042833 CN 201110042833 CN 201110042833 A CN201110042833 A CN 201110042833A CN 102134891 A CN102134891 A CN 102134891A
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Abstract
The invention belongs to the field of engineering structures and particularly relates to a novel dual-hollow superimposed combined member, a plurality of bars of circular hollow sandwich layer steel pipe concrete are taken as a stiff framework for firstly bearing initial construction load of the structure, steel bars are bound on the periphery of the hollow sandwich layer steel pipe concrete, internal steel pipes are mounted, and concrete is further superimposed and poured, thereby forming the member in the box-shaped cross section by combination. The dual-hollow superimposed combined member can solve the problems of excessive dead weight of the concrete in large public buildings and long-span bridges and quality control of the concrete during the construction. In addition, due to the adoption of the dual-hollow structural form, the shearing resistance and the seismic performance of the structure can be greatly improved. In addition, the hollow sandwich layer steel pipe concrete in the structure can further bear the initial construction load of the structure, and the internal steel pipes can also be used as internal templates during the construction of the concrete, thereby not only facilitating the construction, but also achieving the purpose of shortening the construction period.
Description
Technical field
The invention belongs to the engineering structures field, particularly a kind of novel two empty iterative structure members.
Background technology
The beam of large-span structure or post need very big cross section bending rigidity to resist horizontal loadings such as wind load, seismic load, if the enlarged cross section size improves rigidity simply, the concrete deadweight just might be with beam or post conquassation; In addition, creep in the concrete in mass, shrink and all more outstanding, will produce many adverse effects structure in the heat of hydration problem in hydrated cementitious stage.
Summary of the invention
The objective of the invention is to solve the problem of concrete Quality Control when concrete component is conducted oneself with dignity excessive and construction in large public building, the long span bridge beam, a kind of novel two empty iterative structure members are provided.
The technical solution used in the present invention is:
Adopt steel pipe box-type section in the circular concrete-filled double skin steel tube stiffener concrete.The some concrete-filled double skin steel tubes of bearing the initial stage working load of structure as stiff skeleton earlier; Colligation comprises longitudinal reinforcement, tension rib and stirrup at the reinforcing bar of described concrete-filled double skin steel tube periphery; Be installed in the interior steel pipe in the described concrete-filled double skin steel tube delineation scope; The folded external wrapping concrete that waters in the scope of interior steel pipe and external boundary delineation.
The quantity of described concrete-filled double skin steel tube is the 4-10 root.
The quantity of described concrete-filled double skin steel tube is 6 or 8.
The cross section of described concrete-filled double skin steel tube is circular.
Beneficial effect of the present invention is:
With steel pipe box-type section in 8 or the 6 concrete-filled double skin steel tube stiffener concrete, can under the situation that guarantees rigidity of section, reduce concrete consumption significantly, alleviate member dead weight; Concrete-filled double skin steel tube in the member not only can significantly improve the shearing resistance and the anti-seismic performance of member, and can bear the initial stage working load of structure, thereby promptly is convenient to construction, again can the reduction of erection time; Interior steel pipe in the steel concrete box cross section not only can improve the shearing resistance and the anti-seismic performance of member, but also the inner formword when can be used as concrete construction, convenient construction.In addition, compare with traditional heavy in section concrete-filled double skin steel tube structure, the encased steel reinforced concrete can play a protective role to the steel pipe in the concrete-filled double skin steel tube, prevents the corrosion of steel pipe lowered in field environment, reduce maintenance cost, improve the service life of structure; And can reduce steel using amount.
Possible application: in all kinds of large public buildings, the bridge engineering structure.
Description of drawings
Fig. 1 is the two empty superposed member of steel pipe box-type section in 8 circular concrete-filled double skin steel tube stiffener concrete, can be applied to the compressed members such as post in the structure;
Fig. 2 is the two empty superposed member of steel pipe box-type section in 6 circular concrete-filled double skin steel tube stiffener concrete, can be applied to the flexural members such as beam in the structure;
Number in the figure:
Steel pipe in the 1-concrete-filled double skin steel tube, 2-, 3-external wrapping concrete, 4-longitudinal reinforcement, 5-tension rib, 6-stirrup.
The specific embodiment
The invention provides a kind of novel two empty iterative structure members, the present invention will be further described below in conjunction with the drawings and specific embodiments.
Bear the initial stage working load of structure as stiff skeleton as Fig. 1 or the circular concrete-filled double skin steel tube 1 of 4-10 root (being preferably 8 or 6) that is provided with earlier shown in Figure 2, again in concrete-filled double skin steel tube 1 peripheral assembling reinforcement (comprising longitudinal reinforcement 4, tension rib 5 and stirrup 6), install in steel pipe 2 and exterior sheathing, and the folded external wrapping concrete 3 that waters in the scope between the external boundary of interior steel pipe 2 and exterior sheathing delineation, form the box-type section member, guaranteeing can co-ordination between the different materials.
The structural steel pipe that ectonexine round steel pipe in the concrete-filled double skin steel tube 1 and interior steel pipe 6 adopt welded steel pipe, seamless steel pipe, cold-bent pipe or other modes to form.The geometric centroid in steel pipe and cross section overlaps in guaranteeing in the process.Concrete in concrete-filled double skin steel tube 1 and the external wrapping concrete 3 can adopt constructional materialss such as high-strength concrete or self-compacting concrete, wants strict control specification of aggregate simultaneously, guarantee concrete can be evenly, perfusion densely.
Claims (4)
1. novel two empty iterative structure member is characterized in that this member comprises:
The some concrete-filled double skin steel tubes (1) of bearing the initial stage working load of structure as stiff skeleton earlier;
Colligation comprises longitudinal reinforcement (4), tension rib (5) and stirrup (6) at the peripheral reinforcing bar of described concrete-filled double skin steel tube (1);
Be installed in the interior steel pipe (2) in described concrete-filled double skin steel tube (1) the delineation scope;
The folded external wrapping concrete (3) that waters in the scope that interior steel pipe (2) and external boundary are drawn a circle to approve.
2. novel two empty iterative structure members according to claim 1 is characterized in that the quantity of described concrete-filled double skin steel tube (1) is the 4-10 root.
3. novel two empty iterative structure members according to claim 4 is characterized in that the quantity of described concrete-filled double skin steel tube (1) is 6 or 8.
4. novel two empty iterative structure members according to claim 1 is characterized in that the cross section of described concrete-filled double skin steel tube (1) is circular.
Priority Applications (1)
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CN 201110042833 CN102134891A (en) | 2011-02-22 | 2011-02-22 | Novel dual-hollow superimposed structural member |
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CN 201110042833 CN102134891A (en) | 2011-02-22 | 2011-02-22 | Novel dual-hollow superimposed structural member |
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CN102134891A true CN102134891A (en) | 2011-07-27 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106284844A (en) * | 2016-10-13 | 2017-01-04 | 沈阳建筑大学 | A kind of concrete-filled double skin steel tube superposed column and preparation method thereof |
CN109083023A (en) * | 2018-09-06 | 2018-12-25 | 重庆交通大学 | Using the continuous rigid frame bridge and its construction method of stiff skeleton |
CN112922236A (en) * | 2021-02-01 | 2021-06-08 | 浙江理工大学 | Assembled concrete prefabricated column and assembling method thereof |
Citations (7)
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EP0214800A2 (en) * | 1985-09-02 | 1987-03-18 | SHIMIZU CONSTRUCTION Co. LTD. | Filler filled steel tube column |
US4722156A (en) * | 1985-03-05 | 1988-02-02 | Shimizu Construction Co., Ltd. | Concrete filled steel tube column and method of constructing same |
JPH1122106A (en) * | 1997-07-08 | 1999-01-26 | Fujita Corp | Composite bending principal member of concrete structure and constructing method of concrete structure by using composite bending principal member |
CN1224101A (en) * | 1998-01-22 | 1999-07-28 | 林立岩 | Structural design and construction method for steel tube and high-strength concrete coincidence column |
CN101177966A (en) * | 2007-12-06 | 2008-05-14 | 合肥工业大学 | Hollow double-layer FRP pipe concrete combination structure |
CN101381993A (en) * | 2007-09-07 | 2009-03-11 | 株式会社大宇 | Pier foundation with steel tube and assembling structure of pier using the pier foundation |
CN201695572U (en) * | 2010-06-22 | 2011-01-05 | 中国建筑第二工程局有限公司 | Composite steel concrete column and reinforced concrete frame beam mixing structure |
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2011
- 2011-02-22 CN CN 201110042833 patent/CN102134891A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US4722156A (en) * | 1985-03-05 | 1988-02-02 | Shimizu Construction Co., Ltd. | Concrete filled steel tube column and method of constructing same |
EP0214800A2 (en) * | 1985-09-02 | 1987-03-18 | SHIMIZU CONSTRUCTION Co. LTD. | Filler filled steel tube column |
JPH1122106A (en) * | 1997-07-08 | 1999-01-26 | Fujita Corp | Composite bending principal member of concrete structure and constructing method of concrete structure by using composite bending principal member |
CN1224101A (en) * | 1998-01-22 | 1999-07-28 | 林立岩 | Structural design and construction method for steel tube and high-strength concrete coincidence column |
CN101381993A (en) * | 2007-09-07 | 2009-03-11 | 株式会社大宇 | Pier foundation with steel tube and assembling structure of pier using the pier foundation |
CN101177966A (en) * | 2007-12-06 | 2008-05-14 | 合肥工业大学 | Hollow double-layer FRP pipe concrete combination structure |
CN201695572U (en) * | 2010-06-22 | 2011-01-05 | 中国建筑第二工程局有限公司 | Composite steel concrete column and reinforced concrete frame beam mixing structure |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106284844A (en) * | 2016-10-13 | 2017-01-04 | 沈阳建筑大学 | A kind of concrete-filled double skin steel tube superposed column and preparation method thereof |
CN109083023A (en) * | 2018-09-06 | 2018-12-25 | 重庆交通大学 | Using the continuous rigid frame bridge and its construction method of stiff skeleton |
CN112922236A (en) * | 2021-02-01 | 2021-06-08 | 浙江理工大学 | Assembled concrete prefabricated column and assembling method thereof |
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Application publication date: 20110727 |