CN102425236A - Novel connecting form of circular steel tube concrete column and foundation - Google Patents
Novel connecting form of circular steel tube concrete column and foundation Download PDFInfo
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- CN102425236A CN102425236A CN2011103242475A CN201110324247A CN102425236A CN 102425236 A CN102425236 A CN 102425236A CN 2011103242475 A CN2011103242475 A CN 2011103242475A CN 201110324247 A CN201110324247 A CN 201110324247A CN 102425236 A CN102425236 A CN 102425236A
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Abstract
The invention provides a novel connecting form of a circular steel tube concrete column and a foundation. An outer circular plate is welded, thereby increasing the rigidity of a connecting position of the column and the foundation, ensuring enough rigidity of the connecting position, avoiding a tearing phenomenon of a welding joint and efficiently protecting a structure from brittle break. The connecting form mainly comprises the steel tube concrete column, the foundation, the outer circular plate, a column base plate and a rib plate and is characterized in that a circular plate is welded on an upper edge of the rib plate along the outer side of a steel tube; the circular plate and a pipe wall are welded in the form of fillet weld; the outer circular plate is connected to the column base plate; the outer circular plate and the rib plate, the rib plate and the column base plate, and the rib plate and the wall of the steel tube are all welded in the form of fillet weld; and the rib plate has a shape of right-angled trapezoid. The connecting form is suitable for high-rise buildings, bridge works, and the like, and is also used for seismic design of buildings in a seismic area, thereby promoting seismic performance of the structure and reducing post-seismic economic loss and casualties.
Description
Technical field
The present invention relates to technical field of buildings, exactly is a kind of novel round steel pipe concrete column and basic type of attachment.
Background technology
In recent years, advantage such as bearing capacity height, ductility are good because encased structures has, easy construction and overall economic efficiency are remarkable has been widely applied in China's civil engineering.Show present steel core concrete column and basic type of attachment through lot of test, when running into than the levels load, post will be torn with the weld seam of the link position on basis, and serious brittle fracture takes place.The round steel pipe concrete column has been widely used in large-scale construction engineering and the bridge engineering.For steel core concrete column, steel pipe makes concrete be in the three dimension stress state to the concrete effect of contraction in its inside, thereby has improved concrete compressive strength; The concrete of steel duct can prevent steel pipe generation cripling again effectively.Research shows that the bearing capacity of steel core concrete column is higher than corresponding steel pipe column bearing capacity and concrete column bearing capacity sum, and also can improve its ductility greatly.The round steel pipe concrete structure also has characteristics such as easy construction, duration weak point, good corrosion resistance, fire resistance be good in addition.But the connectivity problem on steel core concrete column and basis has often limited the performance of its superperformance.
Post is commonly referred to suspension column with the coupling part on basis.Suspension column is exactly that suspension column has the permanent position and power transmission two acts on greatly in order to be fixed on post on the concrete foundation and to pass to ground to the internal force in the post through the basis safely, to say simply.According to the load situation of required transmission and with the type of attachment on basis, be divided into hinged column base and rigidly connect two kinds of suspension columns.
Generally speaking, Axial-compression Column adopts hinged column base more, and this suspension column can only transmit vertical counter-force.And when shaking greatly, building rocks up and down, and suspension column receives very big moment of flexure and shearing.Consequently, the crab-bolt fracture that has, the base plate that has is broken at the crab-bolt edge.In addition, base plate and post member are because of adopting fillet weld when hinged, and the example of part welding seam breaking is more.So hinged column base generally is used for the less pillar of load.When the suffered load of post is big, generally adopt the suspension column form of ribbed plate.The triangle floor is welded in shaft becomes one both, thereby increases the transmission capacity of load.Simultaneously, add floor after, base plate zoning lattice, under basic counter-force effect, moment of flexure can reduce greatly in the plate, thereby can reduce the thickness of base plate.
The common suspension column that rigidly connects comprises and imbeds hole digging pile formula suspension column and imbed two kinds of basic beam type suspension columns.Imbed the situation such as contrary working system construction that hole digging pile formula suspension column is applicable to single pile and multi-storey basement structure under the post.For improving the local compressive strength of suspension column bottom surface pile concrete, this category node should be provided with multistory reinforced net sheet in the concrete under the column base plate.Imbed basic beam type suspension column and be applicable to that multi-column pier foundation and multi-storey basement structure adopt situation such as contrary working system construction.Though flush type foot joint anti-seismic performance is good, shortcoming is that construction is loaded down with trivial details, and reinforcement foundation and steel pipe column are collided, and intractability is big.The cushion cap height that requires is higher, and actual engineering often can not satisfy code requirement.
Present connected mode is applicable to that structure only receives vertical load or the little situation of suffered horizontal loading.If horizontal loading is bigger, when suspension column reaches capacity state, will brittle destruction af-ter, make building have serious potential safety hazard.
Summary of the invention
The purpose of this invention is to provide a kind of novel round steel pipe concrete column and basic type of attachment.In order to guarantee round steel pipe concrete column and the basic ductility that can reach enough that is connected, improve the anti-seismic performance of structure, be employed in post and basic link position add outer ring plate along the steel pipe outside measure, improve the deficiency of original type of attachment.
Technical scheme is following:
The present invention is that ring flat-plate adopts fillet weld to weld with tube wall at the top of floors of existing connected mode ring flat-plate of outside welding along steel pipe.Outer ring plate links to each other through the base plate of floor and post simultaneously, and wherein the base plate of outer ring plate and floor, floor and post and floor and steel pipe walls also all are to adopt fillet weld to be welded.The size of ribbed panel suitably increases on the basis of original floor, shape such as right-angled trapezium.The size of outer ring plate is compared smaller a little with the pillar base plate, so that install and fix bolt.In addition, can be thinner than the pillar base plate thick for the thickness of outer ring plate.Through the welding outer ring plate, increase the rigidity and the intensity of pillar and basic link position, can be good at avoiding weld seam to produce and tear phenomenon.Thereby effectively prevent the structure brittle destruction af-ter, improve the safety of structure.
Advantage and beneficial effect:
Through outer ring plate is set, can obviously improve under horizontal loads the destruction form when suspension column reaches capacity state.Thereby guarantee round steel pipe concrete column generation ductile fracture, improve the anti-seismic performance of structure.This type of attachment is not only applicable to highrise building, bridge engineering etc., also can be used for improving the anti-seismic performance of structure in the seismic design of many shake regional architecture things, reduces economic loss and casualties after shaking.Promptly under receiving than the levels load action, novel round steel pipe concrete column is connected with the basis.Compare with existing connected mode, effectively avoided the brittle fracture of structure, improve the anti-seismic performance of structure greatly.The present invention is suitable in the structures such as large-scale construction engineering and bridge engineering.
Description of drawings
Fig. 1 is the type of attachment sketch map of no ring flat-plate.
Fig. 2 is the sketch map of round steel pipe concrete column of the present invention and basic type of attachment.
Fig. 3 is a floor map of the present invention.
1 is pillar, the 2nd among the figure, high-strength bolt, the 3rd, ribbed panel, the 4th, pillar base plate, the 5th, basis, the 6th, outer ring plate.
The specific embodiment
Below in conjunction with technical scheme with reference to accompanying drawing the present invention is elaborated.
Round steel pipe concrete column-basic type of attachment such as Fig. 2, shown in Figure 3 that the present invention proposes.
Round steel pipe concrete column-basic type of attachment mainly is made up of steel core concrete column, basis, outer ring plate, pillar base plate and ribbed panel.The present invention is that ring flat-plate adopts fillet weld to weld with tube wall at the top of floors of existing connected mode ring flat-plate of outside welding along steel pipe.Outer ring plate links to each other through the base plate of floor and post simultaneously, and wherein the base plate of outer ring plate and floor, floor and post and floor and steel pipe walls also all are to adopt fillet weld to be welded.The size of ribbed panel suitably increases on the basis of original floor, shape such as right-angled trapezium.At last, be connected the pillar base plate fixing with the basis through high-strength bolt.
Claims (2)
1. the type of attachment on a novel round steel pipe concrete column and basis; Mainly form by steel core concrete column, basis, outer ring plate, pillar base plate and ribbed panel; It is characterized in that: at the outside welding ring flat-plate (6) of ribbed panel (3) upper limb along steel pipe; Ring flat-plate and tube wall adopt the fillet weld welding, and outer ring plate (6) links to each other with pillar base plate (4) through ribbed panel (3).
2. according to the type of attachment of the described a kind of novel round steel pipe concrete column of claim with the basis; It is characterized in that: outer ring plate (6) all is to adopt fillet weld be welded shape such as the right-angled trapezium of ribbed panel (3) with pillar base plate (4) and ribbed panel (3) with steel pipe walls with ribbed panel (3), ribbed panel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103242475A CN102425236A (en) | 2011-10-24 | 2011-10-24 | Novel connecting form of circular steel tube concrete column and foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103242475A CN102425236A (en) | 2011-10-24 | 2011-10-24 | Novel connecting form of circular steel tube concrete column and foundation |
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| Publication Number | Publication Date |
|---|---|
| CN102425236A true CN102425236A (en) | 2012-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103242475A Pending CN102425236A (en) | 2011-10-24 | 2011-10-24 | Novel connecting form of circular steel tube concrete column and foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690736A (en) * | 2021-07-09 | 2021-11-23 | 浙江华云电力工程设计咨询有限公司 | Novel lightning rod with inner ring plate |
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| JPH044835B2 (en) * | 1981-12-15 | 1992-01-29 | ||
| JPH10227063A (en) * | 1996-12-12 | 1998-08-25 | Nkk Corp | Joint structure of square steel pipe column and h-sectional beam |
| JP4044835B2 (en) * | 2002-12-16 | 2008-02-06 | 大成建設株式会社 | Junction structure |
| CN201217849Y (en) * | 2008-07-10 | 2009-04-08 | 新疆光正钢结构工程技术有限责任公司 | Pedestal shear key connecting structure |
| CN101446089A (en) * | 2007-11-27 | 2009-06-03 | 贵阳铝镁设计研究院 | Thermal power plant boiler pedestal and foundation connection structure and method thereof |
| CN201635180U (en) * | 2009-12-24 | 2010-11-17 | 上海勘测设计研究院 | Column foot structure of steel tube column |
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| CN101979791A (en) * | 2010-12-02 | 2011-02-23 | 北京建工集团有限责任公司 | Ring beam and annular corbel column reinforced connection joint and construction method thereof |
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| CN201943191U (en) * | 2011-01-26 | 2011-08-24 | 北京赛博思建筑设计有限公司 | Novel cold-bent rectangular steel pipe column assembled pedestal |
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- 2011-10-24 CN CN2011103242475A patent/CN102425236A/en active Pending
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| JPH10227063A (en) * | 1996-12-12 | 1998-08-25 | Nkk Corp | Joint structure of square steel pipe column and h-sectional beam |
| JP4044835B2 (en) * | 2002-12-16 | 2008-02-06 | 大成建設株式会社 | Junction structure |
| CN101446089A (en) * | 2007-11-27 | 2009-06-03 | 贵阳铝镁设计研究院 | Thermal power plant boiler pedestal and foundation connection structure and method thereof |
| CN201217849Y (en) * | 2008-07-10 | 2009-04-08 | 新疆光正钢结构工程技术有限责任公司 | Pedestal shear key connecting structure |
| CN201635180U (en) * | 2009-12-24 | 2010-11-17 | 上海勘测设计研究院 | Column foot structure of steel tube column |
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| CN201943191U (en) * | 2011-01-26 | 2011-08-24 | 北京赛博思建筑设计有限公司 | Novel cold-bent rectangular steel pipe column assembled pedestal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690736A (en) * | 2021-07-09 | 2021-11-23 | 浙江华云电力工程设计咨询有限公司 | Novel lightning rod with inner ring plate |
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Application publication date: 20120425 |