CN202081576U - Constraint profile steel high-strength concrete column with fiber reinforced plastic-steel composite tube - Google Patents
Constraint profile steel high-strength concrete column with fiber reinforced plastic-steel composite tube Download PDFInfo
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- CN202081576U CN202081576U CN2011200529498U CN201120052949U CN202081576U CN 202081576 U CN202081576 U CN 202081576U CN 2011200529498 U CN2011200529498 U CN 2011200529498U CN 201120052949 U CN201120052949 U CN 201120052949U CN 202081576 U CN202081576 U CN 202081576U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 203
- 239000010959 steel Substances 0.000 title claims abstract description 203
- 239000011372 high-strength concrete Substances 0.000 title claims abstract description 92
- 239000000835 fiber Substances 0.000 title claims abstract description 50
- 239000002131 composite material Substances 0.000 title abstract description 9
- 239000011151 fibre-reinforced plastic Substances 0.000 claims abstract description 34
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims abstract description 32
- 239000007787 solid Substances 0.000 claims abstract description 4
- 210000003205 muscle Anatomy 0.000 claims description 25
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229920002748 Basalt fiber Polymers 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000004760 aramid Substances 0.000 claims description 2
- 229920003235 aromatic polyamide Polymers 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims description 2
- 239000011150 reinforced concrete Substances 0.000 abstract description 7
- 239000004567 concrete Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000008439 repair process Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012946 outsourcing Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a constraint profile steel high-strength concrete column with a fiber reinforced plastic-steel composite tube, which comprises longitudinal bars, hoops, high-strength concrete, profile steel and the fiber reinforced plastic-steel composite tube. The longitudinal bars are distributed along the height direction of the column; the annular hoops are sleeved in the height direction of the longitudinal bars; the profile steel is distributed in the hoops along the height direction of the column; the fiber reinforced plastic-steel composite tube is sleeved at the outer edges of the hoops along the height direction of the column and formed by compositing a steel tube as an inner wall with a fiber reinforced plastic tube as an outer wall; the solid high-strength concrete is cast in the fiber reinforced plastic-steel composite tube; and the fiber reinforced plastic-steel composite tube is disconnected at two tail ends of the column. Axial-load ratio limit, earthquake resistance and durability of the constraint profile steel high-strength concrete column are improved, and the problems of high steel consumption of a profile steel tube high-strength concrete column profile, trouble in connecting the profile steel tube high-strength concrete column profile with a reinforced concrete beam and the like are solved.
Description
Technical field
The utility model belongs to a kind of civil engineering structure member, and particularly a kind of shaped steel high-strength concrete column is particularly useful for highrise building, bridge engineering, underground construction and port works etc. under the adverse circumstances such as ocean, humidity and salt-soda soil.
Background technology
High-strength concrete has advantages such as intensity height, the little and good endurance of distortion, can adapt to the modern project structure to stride greatly, the needs of heavy duty and towering development, concrete high the reinforcement is the important trend of modern concrete structural development.In high-level structure, adopt the high-strength concrete frame column, can effectively reduce the pillar cross section, increase the usable floor area in house, improve the advantages such as anti-seismic performance of frame column.Superior performance makes the range of application of high-strength concrete constantly enlarge.
Yet high-strength concrete also has its fatal weakness, and that is exactly that the ductility of high-strength concrete is very poor, is easy to produce brittle fracture.And the area of China 80% belongs to the city that the district that provides fortification against earthquakes (more than 6 degree), particularly high building structure are concentrated, and the overwhelming majority is in the district that provides fortification against earthquakes, and part also is in high earthquake intensity area, should not adopt High Strength Concrete Structures." the Code for design of concrete structures GB 50010 " of China regulation: when fortification intensity is 9 when spending, strength grade of concrete should not surpass C60, and when fortification intensity is 8 when spending, strength grade of concrete should not surpass C70.These prescribed limits the application of high-strength concrete in the high-level structure of earthquake zone.
Add shaped steel in high-strength concrete column, the composing type steel high strength concrete pole can obviously improve the anti-seismic performance of high-strength concrete column.Yet the shaped steel high-strength concrete column that adopts usually has the following disadvantages at present:
1. limit value of axial compression ratio is low.Because shaped steel is positioned at the center of shaped steel high-strength concrete column, so shaped steel can not produce effectively constraint to high-strength concrete; And the shaped steel high-strength concrete column can not be provided with compound stirrup, so the constraint that the high-strength concrete in the shaped steel high-strength concrete column is subjected to is very little.When ratio of axial compressive force to axial compressive ultimate capacity of section was big, the ductility of pillar under Horizontal Seismic Load was very low, and energy dissipation capacity is very little, and anti-seismic performance is very poor.
2. seismic loading easily produces sag of protecting coating, vertical muscle and shaped steel edge of a wing unstability down, and the shake back is difficult repairs.The shaped steel high-strength concrete column is easy to generate the phenomenon of sag of protecting coating, vertical muscle and shaped steel edge of a wing unstability under seismic loading, cause bearing capacity to reduce, and anti-seismic performance is relatively poor, and is difficult to after the shake repair.
In order to overcome the above-mentioned deficiency of shaped steel high-strength concrete column, in the shaped steel high-strength concrete column, introduce steel pipe, form steel pipe shaped steel high-strength concrete column, can improve the limit value of axial compression ratio of shaped steel high-strength concrete column, make shaped steel high-strength concrete column restrictive axes pressure ratio no longer in application; Can improve the anti-seismic performance of shaped steel high-strength concrete column, the shaped steel high-strength concrete column can be used in the high-level structure of high intensity Zone; But the topping of protection type steel high strength concrete pole stops the too early appearance of vertical muscle and shaped steel edge of a wing unstability.
Yet, steel pipe shaped steel high-strength concrete column but exist steel using amount big, be connected problems such as trouble, the easy unstability of steel pipe with reinforced concrete beam.
In order to solve the problems referred to above of steel pipe shaped steel high-strength concrete column, can adopt steel tube binding type steel high strength concrete pole, be that its outside steel pipe does not bear vertical load (not bearing a power and moment of flexure), only the core type steel high strength concrete pole provided horizontal effect of contraction and bears horizontal shear.The effect that steel tube binding type steel high strength concrete pole brought is: because outside steel pipe no longer bears vertical load, so steel using amount can reduce, and also improved the problem of the easy unstability of steel pipe simultaneously; Because outside steel pipe disconnects at pillar two end terminals, so solved the problem that is connected trouble with reinforced concrete beam.
Yet, when in adverse circumstances such as ocean, humidity and salt-soda soil, using steel pipe shaped steel high-strength concrete column and steel tube binding type steel high strength concrete pole, its outside steel pipe all needs to brush anticorrosive paint or adopt special anticorrosive measure, so greatly increased construction costs and technical difficulty, the expense of later maintenance simultaneously is also than higher.Therefore, need develop the shaped steel high-strength concrete column structure of low cost, high-durability.
Summary of the invention
In order to overcome the above-mentioned shortcoming and defect of existing shaped steel high-strength concrete column, steel pipe shaped steel high-strength concrete column and steel tube binding type steel high strength concrete pole, the utility model will provide a kind of and has that anti-seismic performance is good, easy construction and high-durability, the fibre reinforced plastics-steel pipe binding type steel high strength concrete pole of the highrise building under the adverse circumstances such as particularly suitable Yu Haiyang, humidity and salt-soda soil, bridge engineering, underground construction and port works etc.
The utility model is achieved through the following technical solutions:
A kind of fibre reinforced plastics-steel pipe binding type steel high strength concrete pole, comprise vertical muscle, stirrup, high-strength concrete, shaped steel and fibre reinforced plastics-steel pipe, described vertical muscle is laid along the pillar short transverse, on the short transverse of vertical muscle, be arranged with the hoop stirrup, in stirrup, be laid with shaped steel along the pillar short transverse, the pillar short transverse is arranged with fibre reinforced plastics-steel pipe in the stirrup outer, described fibre reinforced plastics-steel pipe is by being composited as the steel pipe of inwall with as the fibre reinforced plastic tube of outer wall, build solid high-strength concrete in fibre reinforced plastics-steel pipe, fibre reinforced plastics-steel pipe disconnects at pillar two end terminals.
Fibre reinforced plastics-steel pipe described in the utility model is pipe, square tube or rectangular tube.
Shaped steel described in the utility model is H shaped steel or cross-shaped profile steel.
Vertical muscle described in the utility model is reinforcing bar or the compound muscle of fibre reinforced plastics-steel.
Fibre reinforced plastics described in the utility model are glass fiber reinforced plastics, carbon fibre reinforced plastic, basalt fibre reinforced plastic or aromatic polyamide fiber reinforced plastics.
Fibre reinforced plastics described in the utility model are the composite fibre reinforced plastic that these four kinds of fibers of glass fiber, carbon fiber, basalt fibre and aramid fiber mix by a certain percentage.
Compared with prior art, core of the present utility model is to adopt fibre reinforced plastics-steel pipe to replace steel pipe to come binding type steel high strength concrete pole, improve the endurance quality of steel tube binding type steel high strength concrete pole, and its outsourcing clad pipe does not bear axial load, only the core type steel high strength concrete pole is provided horizontal effect of contraction and bears horizontal shear.
The utility model is compared with the plain edition steel high strength concrete pole, has the following advantages and effect:
1. fibre reinforced plastics-steel pipe binding type steel high strength concrete pole restrictive axes pressure ratio not makes the shaped steel high-strength concrete column no longer be subject to ratio of axial compressive force to axial compressive ultimate capacity of section in application, promptly still has good seismic resistance at high axial compression ratio condition mo(u)ld bottom half steel high strength concrete pole.
2. prevent that the high-strength concrete topping peels off under the seismic loading, reinforcing bar and shaped steel edge of a wing unstability, easily repair the shake back.Under the seismic loading, the end concrete of shaped steel high-strength concrete column is by conquassation, reinforcing bar and shaped steel edge of a wing unstability, and the shake back is difficult to repair; And breakoff phenomenon is not obvious after the shake of fibre reinforced plastics-steel pipe binding type steel high strength concrete pole, and easily repair the shake back.
3. excellent in durability.Because fibre reinforced plastics have excellent endurance quality, so the endurance quality of fibre reinforced plastics-steel pipe binding type steel high strength concrete pole is good.
The utility model is compared with steel pipe shaped steel high-strength concrete column, has the following advantages and effect:
1. steel using amount is little, avoids cripling destruction in the axial compression.The outsourcing constraint of fibre reinforced plastic tube not only can reduce the steel using amount of steel pipe, can also suppress the cripling of steel pipe; Simultaneously, clad pipe disconnects at pillar two end terminals in fibre reinforced plastics-steel pipe binding type steel high strength concrete pole, be that clad pipe no longer bears axial load, further reduced steel using amount, and avoided incident axial compression cripling in the steel core concrete column.
2. be connected simply with reinforced concrete beam.Because clad pipe disconnects at pillar two end terminals in fibre reinforced plastics-steel pipe binding type steel high strength concrete pole, therefore its be equal to being connected of plain edition steel high strength concrete pole and reinforced concrete beam being connected of reinforced concrete beam, method of attachment simply is convenient to construct.
3. excellent in durability.Because fibre reinforced plastics have excellent endurance quality, so the endurance quality of fibre reinforced plastics-steel pipe binding type steel high strength concrete pole is good.
The utility model is compared with steel tube binding type steel high strength concrete pole, has the following advantages and effect:
1. excellent in durability.Because fibre reinforced plastics have excellent endurance quality, at outer surface of steel tube composite fiber reinforced plastic pipe, make fibre reinforced plastics-steel pipe binding type steel high strength concrete pole have the favorable durability energy, the engineering under the adverse circumstances such as particularly suitable Yu Haiyang, humidity and salt-soda soil is used.
2. the outsourcing of fibre reinforced plastic tube constraint can not only reduce the steel using amount of steel pipe, also can effectively delay the mode of failure such as cracking of steel pipe seam.
Description of drawings
11 in the total accompanying drawing of the utility model, wherein:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of shaped steel.
Fig. 3 is a circular configuration cage of reinforcement schematic diagram of the present utility model.
Fig. 4 is circular configuration of the present utility model (H shaped steel) schematic diagram.
Fig. 5 is a square structure cage of reinforcement schematic diagram of the present utility model
Fig. 6 is square structure of the present utility model (H shaped steel) schematic diagram.
Fig. 7 is a rectangular configuration cage of reinforcement schematic diagram of the present utility model
Fig. 8 is rectangular configuration of the present utility model (H shaped steel) schematic diagram.
Fig. 9 is circular configuration of the present utility model (cross-shaped profile steel) schematic diagram.
Figure 10 is square structure of the present utility model (cross-shaped profile steel) schematic diagram.
Figure 11 is rectangular configuration of the present utility model (cross-shaped profile steel) schematic diagram.
Among the figure: 1. vertical muscle; 2. stirrup; 3. high-strength concrete; 4. steel pipe; 5. fibre reinforced plastic tube; 6. shaped steel.
The specific embodiment
With reference to the accompanying drawings the utility model is elaborated.
Fibre reinforced plastics of the present utility model-steel pipe binding type steel high strength concrete pole is made up of vertical muscle 1, stirrup 2, high-strength concrete 3, fibre reinforced plastics-steel pipe and shaped steel 6, and wherein column section can be divided into circle, square and rectangular configuration; Shaped steel 6 can be divided into H shaped steel and cross-shaped profile steel.
Shown in Fig. 1-4, the fibre reinforced plastics that the utility model provides-steel pipe binding type steel high strength concrete pole cross section is a circular configuration, mainly is made up of vertical muscle 1, stirrup 2, high-strength concrete 3, circular fiber reinforced plastic-steel pipe and H shaped steel 6.The concrete preparation method of present embodiment is as follows:
A, vertical muscle 1 are laid along the pillar short transverse, and vertical muscle 1 is reinforcing bar 1 or the compound muscle of fibre reinforced plastics-steel;
B, on the short transverse of vertical muscle 1, be arranged with hoop stirrup 2;
C, be laid with shaped steel 6 along the pillar short transverse in stirrup 2, shaped steel 6 can adopt hot-rolled steel section or welding shaped steel;
D, be arranged with fibre reinforced plastics-steel pipe in stirrup 2 outer pillar short transverses, clad pipe disconnects at pillar two end terminals, this clad pipe is by being composited as the steel pipe 4 of inwall with as the fibre reinforced plastic tube 5 of outer wall, steel pipe 4 is welded by steel plate, fibre reinforced plastic tube 5 is made by winding process, with steel pipe 4 as twining mould, adopt the continuous fiber yarn to make fibre reinforced plastic tube 5 through winding process, winding finishes, fibre reinforced plastics-steel pipe also completes simultaneously, and used fiber is a glass fiber, carbon fiber, basalt fibre, aramid fiber or this four kinds of composite fibre that fiber mixes by a certain percentage;
Build solid high-strength concrete 3 in E, the fibre reinforced plastics-steel pipe, concrete should adopt the high-strength concrete 3 of label greater than C60.
As illustrated in Figures 5 and 6, fibre reinforced plastics of the present utility model-steel pipe binding type steel high strength concrete pole cross section is a square structure, mainly be made up of vertical muscle 1, stirrup 2, high-strength concrete 3, square fibre reinforced plastics-steel pipe and H shaped steel 6, its concrete preparation method is identical with embodiment 1.
Shown in Fig. 7 and 8, fibre reinforced plastics of the present utility model-steel pipe binding type steel high strength concrete pole cross section is a rectangular configuration, mainly be made up of vertical muscle 1, stirrup 2, high-strength concrete 3, rectangular fiber reinforced plastic-steel pipe and H shaped steel 6, its concrete preparation method is identical with embodiment 1.
Shown in Fig. 3 and 9, fibre reinforced plastics of the present utility model-steel pipe binding type steel high strength concrete pole cross section is a circular configuration, mainly be made up of vertical muscle 1, stirrup 2, high-strength concrete 3, circular fiber reinforced plastic-steel pipe and cross-shaped profile steel 6, its concrete preparation method is identical with embodiment 1.
Shown in Fig. 5 and 10, fibre reinforced plastics of the present utility model-steel pipe binding type steel high strength concrete pole cross section is a square structure, mainly be made up of vertical muscle 1, stirrup 2, high-strength concrete 3, square fibre reinforced plastics-steel pipe and cross-shaped profile steel 6, its concrete preparation method is identical with embodiment 1.
Shown in Fig. 7 and 11, this fibre reinforced plastics of the present utility model-steel pipe binding type steel high strength concrete pole cross section is a rectangular configuration, mainly be made up of vertical muscle 1, stirrup 2, high-strength concrete 3, rectangular fiber reinforced plastic-steel pipe and cross-shaped profile steel 6, its concrete preparation method is identical with embodiment 1.
Because fibre reinforced plastics-steel pipe disconnects at end, pillar two ends, fibre reinforced plastics of the present utility model-steel pipe binding type steel high strength concrete pole adopts the connected mode of existing regulation and stipulation to get final product with being connected of reinforced concrete beam or other form of structure beam.
Claims (5)
1. fibre reinforced plastics-steel pipe binding type steel high strength concrete pole, comprise vertical muscle (1), stirrup (2), high-strength concrete (3) and shaped steel (6), it is characterized in that: also comprise fibre reinforced plastics-steel pipe, described vertical muscle (1) is laid along the pillar short transverse, on the short transverse of vertical muscle (1), be arranged with hoop stirrup (2), in stirrup (2), be laid with shaped steel (6) along the pillar short transverse, the pillar short transverse is arranged with fibre reinforced plastics-steel pipe in stirrup (2) outer, described fibre reinforced plastics-steel pipe is by being composited as the steel pipe (4) of inwall with as the fibre reinforced plastic tube (5) of outer wall, build solid high-strength concrete (3) in fibre reinforced plastics-steel pipe, fibre reinforced plastics-steel pipe disconnects at pillar two end terminals.
2. a kind of fibre reinforced plastics according to claim 1-steel pipe binding type steel high strength concrete pole is characterized in that: described fibre reinforced plastics-steel pipe is pipe or rectangular tube.
3. a kind of fibre reinforced plastics according to claim 1-steel pipe binding type steel high strength concrete pole is characterized in that: described shaped steel (6) is H shaped steel or cross-shaped profile steel.
4. a kind of fibre reinforced plastics according to claim 1-steel pipe binding type steel high strength concrete pole is characterized in that: described vertical muscle (1) is reinforcing bar or the compound muscle of fibre reinforced plastics-steel.
5. according to claim 1,2,3 or 4 described any fibre reinforced plastics-steel pipe binding type steel high strength concrete poles, it is characterized in that: described fibre reinforced plastics are glass fiber reinforced plastics, carbon fibre reinforced plastic, basalt fibre reinforced plastic or aromatic polyamide fiber reinforced plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200529498U CN202081576U (en) | 2011-03-02 | 2011-03-02 | Constraint profile steel high-strength concrete column with fiber reinforced plastic-steel composite tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200529498U CN202081576U (en) | 2011-03-02 | 2011-03-02 | Constraint profile steel high-strength concrete column with fiber reinforced plastic-steel composite tube |
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| CN202081576U true CN202081576U (en) | 2011-12-21 |
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| CN2011200529498U Expired - Fee Related CN202081576U (en) | 2011-03-02 | 2011-03-02 | Constraint profile steel high-strength concrete column with fiber reinforced plastic-steel composite tube |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358353A (en) * | 2014-10-28 | 2015-02-18 | 四川华铁钢结构有限公司 | Light corrosion-resistant composite steel structure beam |
| CN105625609A (en) * | 2016-01-29 | 2016-06-01 | 广东工业大学 | Composite shear wall embedded with fiber-reinforced plastic (FRP) confined metal tubes |
-
2011
- 2011-03-02 CN CN2011200529498U patent/CN202081576U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358353A (en) * | 2014-10-28 | 2015-02-18 | 四川华铁钢结构有限公司 | Light corrosion-resistant composite steel structure beam |
| CN105625609A (en) * | 2016-01-29 | 2016-06-01 | 广东工业大学 | Composite shear wall embedded with fiber-reinforced plastic (FRP) confined metal tubes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20140302 |