CN202031174U - Novel double hollow laminated structure member - Google Patents
Novel double hollow laminated structure member Download PDFInfo
- Publication number
- CN202031174U CN202031174U CN2011200455352U CN201120045535U CN202031174U CN 202031174 U CN202031174 U CN 202031174U CN 2011200455352 U CN2011200455352 U CN 2011200455352U CN 201120045535 U CN201120045535 U CN 201120045535U CN 202031174 U CN202031174 U CN 202031174U
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- CN
- China
- Prior art keywords
- concrete
- double skin
- filled double
- construction
- steel tubes
- 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.)
- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- 239000004567 concrete Substances 0.000 claims abstract description 49
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000003643 water by type Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 10
- 238000010008 shearing Methods 0.000 abstract description 3
- 238000003908 quality control method Methods 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 239000003351 stiffener Substances 0.000 description 4
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000011376 self-consolidating concrete Substances 0.000 description 1
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Landscapes
- Rod-Shaped Construction Members (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The utility model belongs to the engineering structure field, and especially relates to a novel double hollow laminated structure member. A cube-typed cross section member is formed as follows: a plurality of circular concrete-filled double skin steel tubes are used as a stiff skeleton to bear a structural initial stage construction load; then steel bars are tied at the periphery of the concrete-filled double skin steel tubes; inner steel tubes are arranged; and concrete is poured in a laminated pouring manner. The double hollow laminated structure element solves the problem of an oversized dead weight of the concrete and the concrete quality control during the construction of large public works and large bridges; and shearing resistance and mechanical shock resistance performances of the structure element are greatly increased because of the adopted double hollow laminated structure. Besides, the concrete filled double skin steel tubes of the structure element also can bear the structural initial stage construction load; and the inner steel tubes can be used as inner templates during the concrete construction, so that the construction is facilitated and the aim of shortening the construction period is achieved.
Description
Technical field
The utility model 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 purpose of this utility model is the problem that solves concrete Quality Control when concrete component is conducted oneself with dignity excessive and construction in large public building, the long span bridge beam, and a kind of novel two empty iterative structure members are provided.
The technical solution adopted in the utility model 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.
The beneficial effects of the utility model are:
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 utility model provides a kind of novel two empty iterative structure members, below in conjunction with the drawings and specific embodiments the utility model is described further.
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:
Some concrete-filled double skin steel tubes (1);
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 2 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)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200455352U CN202031174U (en) | 2011-02-22 | 2011-02-22 | Novel double hollow laminated structure member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200455352U CN202031174U (en) | 2011-02-22 | 2011-02-22 | Novel double hollow laminated structure member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202031174U true CN202031174U (en) | 2011-11-09 |
Family
ID=44893476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200455352U Expired - Lifetime CN202031174U (en) | 2011-02-22 | 2011-02-22 | Novel double hollow laminated structure member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202031174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967206A (en) * | 2014-05-14 | 2014-08-06 | 福建工程学院 | Combined lattice type hollow component |
-
2011
- 2011-02-22 CN CN2011200455352U patent/CN202031174U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967206A (en) * | 2014-05-14 | 2014-08-06 | 福建工程学院 | Combined lattice type hollow component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |