CN203034685U - Novel circular-end-shaped concrete filled steel tubular column - Google Patents

Novel circular-end-shaped concrete filled steel tubular column Download PDF

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Publication number
CN203034685U
CN203034685U CN 201220612535 CN201220612535U CN203034685U CN 203034685 U CN203034685 U CN 203034685U CN 201220612535 CN201220612535 CN 201220612535 CN 201220612535 U CN201220612535 U CN 201220612535U CN 203034685 U CN203034685 U CN 203034685U
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CN
China
Prior art keywords
circle shape
nose circle
shape steel
steel pipe
concrete
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Application number
CN 201220612535
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Chinese (zh)
Inventor
王志滨
游经团
谢恩普
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福州大学
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Priority to CN 201220612535 priority Critical patent/CN203034685U/en
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Publication of CN203034685U publication Critical patent/CN203034685U/en

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Abstract

The utility model relates to a novel circular-end-shaped concrete filled steel tubular column which comprises a circular-end-shaped steel tube, wherein concrete is filled in the circular-end-shaped steel tube; the circular-end-shaped steel tube is internally provided with at least one stiffening member for improving local stability of the steel tube, and entire bearing capacity or fire resistance of the column; the stiffening member comprises any one of a longitudinal stiffening rib, a counter steel plate and a split bolt bar, and can further comprise a longitudinal reinforcement; the circular-end-shaped steel tube can be made of common steel or stainless steel; the circular-end-shaped steel tube can be a thin-wall steel tube at a width-to-thickness ratio of 40-150; and the concrete can be common concrete, recycled concrete or high-performance concrete. The column has the characteristics of convenience in construction, short construction cycle, high bearing capacity, high economical efficiency, high transverse stiffness, good fire resistance and the like, and is suitable for development of a concrete filled steel tube system in a bridge structure.

Description

Novel nose circle shape steel core concrete column

Technical field

The utility model relates to a kind of novel nose circle shape steel core concrete column.

Background technology

As shown in Figure 1, steel core concrete column utilizes steel pipe and concrete interaction to improve its bearing capacity and improves its stress performance, and namely steel pipe can improve concrete intensity and ductility to concrete lateral restraint effect; Concrete can delay the generation of steel pipe partial flexing to the supporting role of steel pipe.Therefore concrete filled steel tube has advantages such as bearing capacity height, plasticity ductility are good.

Because the working procedure of steel core concrete column is less, do not need to install template as this class formation simultaneously, just do not have the operation of stripping simultaneously, so encased structures has advantages such as easy construction, short construction period yet.And municipal bridge engineering often has very strict requirement to the construction period, so concrete filled steel tube is widely used in the bridge pier of municipal bridge engineering.Because the suitable bridge of bridge construction differs bigger to rigidity and direction across bridge rigidity, therefore the bridge pier of municipal bridge engineering often is designed to the nose circle tee section to improve the direction across bridge rigidity of structure simultaneously.

But still find this class A of geometric unitA in actual the use there are the following problems to remain further research: (1) steel pipe walls cripling problem directly influences bearing of component, has therefore also just limited the use of thin-wall steel tube in bridge pier; (2) steel pipe is directly exposed in the air, so the fire endurance of steel core concrete column is not as reinforced concrete post; (3) the bridge pier rolled steel dosage is bigger, and cost is higher, needs further to reduce its construction costs.

The utility model content

The utility model makes improvements at the problem that above-mentioned prior art exists, and namely the technical problems to be solved in the utility model provides a kind of bearing capacity height, fire resistance is good and lower-cost novel nose circle shape steel core concrete column.

In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of novel nose circle shape steel core concrete column, comprise nose circle shape steel pipe, be filled with concrete in the described nose circle shape steel pipe, be provided with the stiffener that at least one is used for improving steel pipe partial stability, post total bearing capacity or fire resistance in the described nose circle shape steel pipe.

Preferably, described stiffener comprises the longitudinal reinforcement of laying along nose circle shape steel pipe length direction.

Preferably, described stiffener comprises along nose circle shape steel pipe length direction and is welded on longitudinal stiffener on the inside wall.

Preferably, described stiffener comprises that one end of described drawknot steel plate is welded on the inside wall of nose circle shape steel pipe along the drawknot steel plate of nose circle shape steel pipe length direction welding, and the other end of described drawknot steel plate is welded on another inside wall of nose circle shape steel pipe.

Preferably, described stiffener comprises the split bolt bar that fixedly is arranged in nose circle shape steel pipe two side.

Preferably, described stiffener is uniformly distributed in the nose circle shape steel pipe.

Preferably, the material of described nose circle shape steel pipe is common iron or stainless steel.

Preferably, described nose circle shape steel pipe is the thin-wall steel tube of flakiness ratio between 40 ~ 150.

Preferably, described concrete is ordinary concrete, regeneration concrete or high performance concrete.

Compared with prior art, the utlity model has following beneficial effect: (1) easy construction, duration weak point: compare with reinforced concrete structure, lacked the operation that template and stripping are installed; (2) bearing capacity height: longitudinal reinforcement can be participated in directly stressed, thereby improves the bearing capacity of post; Longitudinal stiffener, drawknot steel plate and split bolt bar all can improve local stability and the bearing capacity of steel pipe well, and the operative constraint of steel pipe can further improve concrete bearing capacity again, so its bearing capacity is far above reinforced concrete structure; (3) good economy performance: adopt steel core concrete column can save the manufacturing cost of steel form, if adopt thin-wall steel tube and cheap regeneration concrete can reduce material cost further, if adopt stainless-steel pipe then can save later maintenance cost further; (4) fire resistance is good: concrete plays anti-fire action to longitudinal reinforcement and drawknot steel plate, improves the fire resistance of longitudinal reinforcement and drawknot steel plate greatly.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Description of drawings

Fig. 1 is the stereogram of existing common novel nose circle shape steel core concrete column.

Fig. 2 is the stereogram of the utility model embodiment one.

Fig. 3 is the stereogram of the utility model embodiment two.

Fig. 4 is the stereogram of the utility model embodiment three.

Fig. 5 is the stereogram of the utility model embodiment four.

Fig. 6 is the plan view of the utility model embodiment four.

Fig. 7 is the stereogram of the utility model embodiment five.

Fig. 8 is the stereogram of the utility model embodiment six.

Among the figure: 1-nose circle shape steel pipe, 2-concrete, 3-longitudinal reinforcement, 4-longitudinal stiffener, 5-drawknot steel plate, 6-split bolt bar, 7-pad.

The specific embodiment

Embodiment one: as shown in Figure 2, a kind of novel nose circle shape steel core concrete column, comprise nose circle shape steel pipe 1, be filled with concrete 2 in the described nose circle shape steel pipe 1, be provided with a plurality of stiffeners for raising columns bearing capacity and fire resistance in the described nose circle shape steel pipe 1, described stiffener is the longitudinal reinforcement of laying along nose circle shape steel pipe 1 length direction 3.During construction: place longitudinal reinforcement 3, placing of concrete 2 in nose circle shape steel pipe 1 then at first in nose circle shape steel pipe 1.

Embodiment two: as shown in Figure 3, a kind of novel nose circle shape steel core concrete column, comprise nose circle shape steel pipe 1, be filled with concrete 2 in the described nose circle shape steel pipe 1, be provided with two stiffeners that are used for improving steel pipe partial stability and post total bearing capacity in the described nose circle shape steel pipe 1, described stiffener is symmetrically welded respectively on two inside walls of nose circle shape steel pipe 1 for 4, two longitudinal stiffeners 4 of longitudinal stiffener that are welded on the inside wall along nose circle shape steel pipe 1 length direction.During construction: at first at the welding of the inboard of nose circle shape steel pipe 1 longitudinal stiffener 4, placing of concrete 2 in nose circle shape steel pipe 1 then.

Embodiment three: as shown in Figure 4, a kind of novel nose circle shape steel core concrete column, comprise nose circle shape steel pipe 1, be filled with concrete 2 in the described nose circle shape steel pipe 1, be provided with a stiffener that is used for improving steel pipe partial stability and post total bearing capacity in the described nose circle shape steel pipe 1, described stiffener is the drawknot steel plate 5 along the welding of nose circle shape steel pipe 1 length direction, one end of described drawknot steel plate 5 is welded on the inside wall of nose circle shape steel pipe 1, and the other end of described drawknot steel plate 5 is welded on another inside wall of nose circle shape steel pipe 1.During construction: at first at the inboard of nose circle shape steel pipe 1 welding drawknot steel plate 5, placing of concrete 2 in nose circle shape steel pipe 1 then.

Embodiment four: shown in Fig. 5 ~ 6, a kind of novel nose circle shape steel core concrete column, comprise nose circle shape steel pipe 1, be filled with concrete 2 in the described nose circle shape steel pipe 1, be provided with two stiffeners that are used for improving steel pipe partial stability and post total bearing capacity in the described nose circle shape steel pipe 1, described stiffener is for fixedly being arranged in the split bolt bar 6 of nose circle shape steel pipe 1 two side.During construction: at first in the middle of two parallel side walls of nose circle shape steel pipe 1, offer bolt hole, install and fix split bolt bar 6 and pad 7, then placing of concrete 2 in nose circle shape steel pipe 1.

Embodiment five: as shown in Figure 7, a kind of novel nose circle shape steel core concrete column, comprise nose circle shape steel pipe 1, be filled with concrete 2 in the described nose circle shape steel pipe 1, be provided with a plurality of for the stiffener that improves steel pipe partial stability, post total bearing capacity and fire resistance in the described nose circle shape steel pipe 1, described stiffener comprises that a plurality of longitudinal reinforcement 3 and two 4, two longitudinal stiffeners 4 of longitudinal stiffener that are welded on the inside wall along nose circle shape steel pipe 1 length direction of laying along nose circle shape steel pipe 1 length direction are symmetrically welded respectively on two inside walls of nose circle shape steel pipe 1.During construction: at first at the inboard of nose circle shape steel pipe 1 welding longitudinal stiffener 4, longitudinal reinforcement 3 then is installed, at last placing of concrete 2 in nose circle shape steel pipe 1.

Embodiment six: as shown in Figure 8, a kind of novel nose circle shape steel core concrete column, comprise nose circle shape steel pipe 1, be filled with concrete 2 in the described nose circle shape steel pipe 1, be provided with a plurality of for improving steel pipe partial stability in the described nose circle shape steel pipe 1, the stiffener of post total bearing capacity and fire resistance, described stiffener comprises a plurality of longitudinal reinforcement 3 and drawknot steel plates 5 along the welding of nose circle shape steel pipe 1 length direction of laying along nose circle shape steel pipe 1 length direction, one end of described drawknot steel plate 5 is welded on the inside wall of nose circle shape steel pipe 1, and the other end of described drawknot steel plate 5 is welded on another inside wall of nose circle shape steel pipe 1.During construction: at first at the inboard of nose circle shape steel pipe 1 welding drawknot steel plate 5, longitudinal reinforcement 3 then is installed, at last placing of concrete 2 in nose circle shape steel pipe 1.

In each above-mentioned embodiment, described stiffener is uniformly distributed in the nose circle shape steel pipe 1, the material of described nose circle shape steel pipe 1 can adopt common iron or stainless steel, described nose circle shape steel pipe 1 can adopt the thin-wall steel tube of flakiness ratio between 40 ~ 150, and described concrete 2 can adopt ordinary concrete, regeneration concrete or high performance concrete.Need to prove that especially the stiffener number among each embodiment is not limited to manual and the expressed scope of accompanying drawing thereof, can increase or reduce according to the practice of construction needs.

The above only is preferred embodiment of the present utility model, and all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.

Claims (9)

1. novel nose circle shape steel core concrete column, comprise nose circle shape steel pipe, be filled with concrete in the described nose circle shape steel pipe, it is characterized in that: be provided with the stiffener that at least one is used for improving steel pipe partial stability, post total bearing capacity or fire resistance in the described nose circle shape steel pipe.
2. novel nose circle shape steel core concrete column according to claim 1 is characterized in that: described stiffener comprises the longitudinal reinforcement of laying along nose circle shape steel pipe length direction.
3. novel nose circle shape steel core concrete column according to claim 1 and 2 is characterized in that: described stiffener comprises along nose circle shape steel pipe length direction and is welded on longitudinal stiffener on the inside wall.
4. novel nose circle shape steel core concrete column according to claim 1 and 2, it is characterized in that: described stiffener comprises along the drawknot steel plate of nose circle shape steel pipe length direction welding, one end of described drawknot steel plate is welded on the inside wall of nose circle shape steel pipe, and the other end of described drawknot steel plate is welded on another inside wall of nose circle shape steel pipe.
5. novel nose circle shape steel core concrete column according to claim 1 and 2, it is characterized in that: described stiffener comprises the split bolt bar that fixedly is arranged in nose circle shape steel pipe two side.
6. novel nose circle shape steel core concrete column according to claim 1, it is characterized in that: described stiffener is uniformly distributed in the nose circle shape steel pipe.
7. novel nose circle shape steel core concrete column according to claim 1, it is characterized in that: the material of described nose circle shape steel pipe is common iron or stainless steel.
8. according to claim 1 or 7 described novel nose circle shape steel core concrete columns, it is characterized in that: described nose circle shape steel pipe is the thin-wall steel tube of flakiness ratio between 40 ~ 150.
9. novel nose circle shape steel core concrete column according to claim 1, it is characterized in that: described concrete is ordinary concrete, regeneration concrete or high performance concrete.
CN 201220612535 2012-11-20 2012-11-20 Novel circular-end-shaped concrete filled steel tubular column CN203034685U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220612535 CN203034685U (en) 2012-11-20 2012-11-20 Novel circular-end-shaped concrete filled steel tubular column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220612535 CN203034685U (en) 2012-11-20 2012-11-20 Novel circular-end-shaped concrete filled steel tubular column

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CN203034685U true CN203034685U (en) 2013-07-03

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103541510A (en) * 2013-10-23 2014-01-29 华侨大学 Improved thin-wall steel pipe concrete column
CN104727483A (en) * 2015-03-25 2015-06-24 河海大学 Thin-wall rectangular steel pipe restricted GFRP (glass fiber reinforced plastic) rib recycled concrete column
CN105155779A (en) * 2015-08-17 2015-12-16 广州大学 Pulling and pressing separated thin-walled steel tube concrete column and construction method thereof
CN105822018A (en) * 2016-05-20 2016-08-03 西安建筑科技大学 Multi-cavity concrete filled steel tube combination column adopting H-shaped connecting piece and splicing method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103541510A (en) * 2013-10-23 2014-01-29 华侨大学 Improved thin-wall steel pipe concrete column
CN104727483A (en) * 2015-03-25 2015-06-24 河海大学 Thin-wall rectangular steel pipe restricted GFRP (glass fiber reinforced plastic) rib recycled concrete column
CN105155779A (en) * 2015-08-17 2015-12-16 广州大学 Pulling and pressing separated thin-walled steel tube concrete column and construction method thereof
CN105822018A (en) * 2016-05-20 2016-08-03 西安建筑科技大学 Multi-cavity concrete filled steel tube combination column adopting H-shaped connecting piece and splicing method

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130703

Termination date: 20151120

EXPY Termination of patent right or utility model