CN103243860A - Multi-chamber type steel pipe and concrete combined L-shaped column - Google Patents
Multi-chamber type steel pipe and concrete combined L-shaped column Download PDFInfo
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- CN103243860A CN103243860A CN2013101786106A CN201310178610A CN103243860A CN 103243860 A CN103243860 A CN 103243860A CN 2013101786106 A CN2013101786106 A CN 2013101786106A CN 201310178610 A CN201310178610 A CN 201310178610A CN 103243860 A CN103243860 A CN 103243860A
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Abstract
The invention discloses a multi-chamber type steel pipe and concrete combined L-shaped column. An L-shaped sectional steel pipe is formed by welding three or more rectangular and/or square steel pipes, and each rectangular and/or square steel pipe form a chamber; and concrete is poured into each chamber to form the multi-chamber type steel pipe and concrete combined L-shaped column. The steel pipes are steel pipe profiles produced by a steel factory, so that welded joints are few, is the machining is convenient, the cost is low, and the quality is easy to guarantee. The multi-chamber type steel pipe and concrete combined L-shaped column fully develops the characteristics of materials and sections, so that the mechanical property of the L-shaped column is improved. The multi-chamber type steel pipe and concrete combined L-shaped column is convenient to process and low in manufacturing cost and is suitable for wide popularization; and the economical benefit of the steel pipe and concrete combined L-shaped column is greatly improved.
Description
Technical field
The invention belongs to building engineering field, be specifically related to a kind of multi-chamber type steel tube concrete and make up L shaped post.
Background technology
Along with society and constant development of economy, the requirement that environmental type is built improves constantly.China is populous, needs a large amount of housing constructions, and concrete structure is the primary structure form of housing construction for a long time, and along with output of steel constantly increases, it is trend of the times that steel are used for housing construction.Compare with reinforced concrete post, steel core concrete column has superior mechanical properties such as bearing capacity height, ductility are good, engineering advantages such as possessing also that floor space is little, dead load light, exempt template and reinforcing bar processing, speed of application is fast.Compare with all steel post, have again that steel using amount is less, rigidity is big and advantage such as construction costs is low.Yet although the sectional dimension of steel core concrete column reduces greatly, pillar protrudes metope, influences the problem of arranging in the house and still exists.Steel pipe concrete profiled pile, namely corner post adopts L shaped cross section, side column to adopt T section, center pillar to adopt cross section, not only has the advantage of steel core concrete column, and has solved the problem of pillar protrusion metope well.
At present, the L shaped cylindricality formula of concrete filled steel tube is various, has following several.A kind of is the L shaped post of common steel tube concrete, as shown in Figure 1, is welded into L shaped steel pipe with steel plate, again to concreting wherein, but because there is inner corner trim, causes steel pipe not strong to concrete effect of contraction, and composite behaviour is relatively poor.On this basis, scholars have carried out multi-form improvement, stiffening rib is set as shown in Figure 2, binding bar is set as shown in Figure 3, above-mentioned measure has improved the performance of the L shaped post of concrete filled steel tube to a certain extent, but these measure meetings cause damage to steel pipe, and processing cost increases considerably.
Summary of the invention
In order to overcome the deficiency of the existing L shaped post of concrete filled steel tube, take all factors into consideration the factor of each side such as mechanical property, construction making, economic benefit, the invention provides a kind of multi-chamber type steel tube concrete and make up L shaped post.The L shaped post simple structure of this section form, convenient construction, good mechanical properties, good in economic efficiency.
The present invention is that a kind of multi-chamber type steel tube concrete makes up L shaped post, directly is welded into L shaped cross section by a plurality of rectangles (square) thin-wall steel tube section bar, and each square (rectangle) steel pipe independently becomes the chamber, again fill concrete in each chamber.The steel pipe section bar that described rectangle (square) steel pipe is produced for steel factory, size conforms country rectangle (square) steel pipe specification standards.The high length depth ratio maximum value of limb with reference to shaped rc columns is 4, (CECS159:2004) middle concrete-filled rectangular steel tube side ratio should not be greater than 2 regulations according to " concrete-filled rectangular steel tube structure technology rules ", in order to make L shaped multi-chamber type steel tube concrete columns bearing capacity scope bigger and satisfy the requirement of concrete-filled rectangular steel tube cross section aspect ratio, the L shaped coupled column of this form can be formed various ways.
The invention has the advantages that:
(1) compares with common reinforced concrete post, concrete filled steel tube (circular, rectangle) post, solved the problem of pillar protrusion metope.
(2) compare with other special-shaped steel pipe concrete post, cross-sectional configuration is simple, is easy to construction.The steel pipe that the present invention adopts is the steel pipe section bar that meets national specification standards, directly is welded into L shaped cross section then, processes very convenient.
(3) compare with common L shaped steel core concrete column, the multicell shape is conducive to eliminate the adverse effect of inner corner trim, improves bearing capacity and the anti-seismic performance of L shaped post.
(4) compare with improved forms such as increasing binding bar and stiffening rib, be equivalent to binding bar and stiffening rib are infinitely encrypted, stressed more reasonable, and to the tube wall not damaged.
(5) owing to need not carry out a large amount of steel plate bending and welding, reduced difficulty of construction, greatly reduced the processing charges of member, thereby improve the economic benefit of member greatly.
(6) combining form is various.According to the needs of practical structures, can be combined into the different size of Room 3, Room 4, Room 5, multi-form L shaped post.
(7) rectangle of Cai Yonging (square) steel pipe, size conforms country specification standards are convenient to obtain.
Description of drawings
Fig. 1 is the L shaped post schematic diagram of common steel tube concrete in the background of invention technology;
Fig. 2 is for arranging the L shaped column section schematic diagram of concrete filled steel tube of stiffening rib in the background of invention technology;
Fig. 3 is for arranging the L shaped column section schematic diagram of concrete filled steel tube of binding bar in the background of invention technology;
Fig. 4 makes up L shaped post for the 3 cell-type concrete filled steel tubes of being made up of a square steel pipe and two rectangular steel pipes among the present invention;
Fig. 5 makes up L shaped post for the 4 cell-type concrete filled steel tubes of being made up of a square steel pipe and three rectangular steel pipes among the present invention;
Fig. 6 makes up L shaped post for the 5 cell-type concrete filled steel tubes of being made up of a square steel pipe and four rectangular steel pipes among the present invention;
Fig. 7 is the L shaped post schematic three dimensional views of limb such as 3 cell-type concrete filled steel tube combinations.
The 1-stiffening rib, 2-binding bar, 3-(side) rectangular steel pipe, 4-concrete, 5-weld seam
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further detailed.
The present invention is that a kind of multi-chamber type steel tube concrete makes up L shaped post, directly is welded into L shaped cross section by a plurality of rectangles (square) thin-wall steel tube section bar, and each square (rectangle) steel pipe independently becomes the chamber, again fill concrete in each chamber.The steel pipe section bar that described rectangle (square) steel pipe is produced for steel factory, size conforms country rectangle (square) steel pipe specification standards.At first, according to design size cutting rectangle and or the rectangular steel tube section bar, again according to the Cross section Design size with the rectangle more than three and or the rectangular steel tube section bar be welded into L shaped cross section, weld seam (GB50018-2002) designs according to " Technical code for design of coldformed thin wall steel structures ", adopt tubaeform weld seam, be arranged in rectangle and or the fillet place of rectangular steel tube, and assurance weldquality, at last rectangle and or rectangular steel tube in concreting, the pipe inner concrete is built and can be adopted the method for manually successively vibrating, the tremie placing method, pumping-up method or a high position leave does not have the method for vibrating.
The high length depth ratio maximum value of limb with reference to shaped rc columns is 4, (CECS159:2004) middle concrete-filled rectangular steel tube side ratio should not be greater than 2 regulations according to " concrete-filled rectangular steel tube structure technology rules ", in order to make L shaped multi-chamber type steel tube concrete columns bearing capacity scope bigger and satisfy the requirement of concrete-filled rectangular steel tube cross section aspect ratio, the L shaped coupled column of this form can be formed various ways: with the L shaped posts in limb Room 3 such as a square steel pipe and two identical rectangles (square) steel pipe composition when b=c (among Fig. 4 when); Form with the square steel pipe rectangular steel pipe different with two and not wait the L shaped post in limb Room 3 when b ≠ c (among Fig. 4 when); Form Room 4 with 4 rectangular steel pipes and do not wait the L shaped post of limb, as shown in Figure 5; With limbs such as 5 rectangles (square) steel pipe compositions or do not wait the L shaped post in Room 5 of limb, as shown in Figure 6.Fig. 7 makes up the schematic three dimensional views of L shaped post for the multi-chamber type steel tube concrete that is combined by 3 steel pipes, and the graphics that other form multi-chamber type steel tube concrete makes up L shaped post does not similarly repeat them here.
Claims (5)
1. a multi-chamber type steel tube concrete makes up L shaped post, it is characterized in that: by rectangle and or rectangular steel tube section bar and the concrete that is cast in the steel pipe section bar form, the cross section of described L shaped post comprise three above rectangles and or the locellus of rectangular steel tube section bar, at first, according to design size cutting rectangle and or the rectangular steel tube section bar, again according to the Cross section Design size with the rectangle more than three and or the rectangular steel tube section bar be welded into L shaped cross section, weld seam (GB50018-2002) designs according to " Technical code for design of coldformed thin wall steel structures ", adopt tubaeform weld seam, be arranged in rectangle and or the fillet place of rectangular steel tube, and assurance weldquality, at last rectangle and or rectangular steel tube in concreting, the pipe inner concrete is built the employing method of manually successively vibrating, the tremie placing method, pumping-up method or a high position leave does not have the method for vibrating.
2. a kind of multi-chamber type steel tube concrete according to claim 1 makes up L shaped post, it is characterized in that: the cross section of described L shaped post comprises the locellus of three steel pipe section bars, wherein with a square steel pipe and two identical rectangles with or the L shaped post in limb three Room such as rectangular steel tube composition or form with the square steel pipe rectangular steel pipe different with two and not wait the L shaped post in limb three Room.
3. a kind of multi-chamber type steel tube concrete according to claim 1 makes up L shaped post, it is characterized in that: the cross section of described L shaped post comprises the locellus of four rectangular steel pipe section bars, wherein forms four Room with four rectangular steel pipes and does not wait the L shaped post of limb.
4. a kind of multi-chamber type steel tube concrete according to claim 1 makes up L shaped post, it is characterized in that: the cross section of described L shaped post comprise five rectangles and or the locellus of rectangular steel tube section bar, wherein with five rectangles and or limb such as rectangular steel tube composition or do not wait the L shaped post of five cell-types of limb.
5. multi-chamber type steel tube concrete according to claim 1 makes up L shaped post, it is characterized in that: described rectangle and or the steel pipe section bar that dispatches from the factory for steel factory of rectangular steel tube section bar.
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Cited By (11)
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CN105649239A (en) * | 2016-03-18 | 2016-06-08 | 广西大学 | Multi-bundle-shaped ultra-high performance concrete-confined normal concrete cross-shaped column and cross-shaped short-leg shear wall |
CN105672572A (en) * | 2016-03-18 | 2016-06-15 | 广西大学 | Multi-bundle-shaped ultra-high-performance concrete constraint common concrete L-shaped column and L-shaped short-leg shear wall |
CN105672570A (en) * | 2016-03-18 | 2016-06-15 | 广西大学 | Multi-bundle-shaped ultra-high-performance concrete constraint common concrete T-shaped column and T-shaped short-leg shear wall |
CN105714934A (en) * | 2016-02-22 | 2016-06-29 | 华北理工大学 | Node connecting structure of assembled circular concrete-filled steel tube special-shaped column-in-column and construction method of node connecting structure |
CN105822017A (en) * | 2015-01-08 | 2016-08-03 | 黄通 | High strength combination column |
CN106522468A (en) * | 2016-10-17 | 2017-03-22 | 西安建筑科技大学 | Confined concrete combination column |
CN107299722A (en) * | 2017-08-17 | 2017-10-27 | 北京汇筑建筑科技有限公司 | Concrete-filled rectangular steel tube Special-Shaped Column and its construction method |
CN107433679A (en) * | 2017-09-20 | 2017-12-05 | 沈阳建筑大学 | A kind of New Thin-walled steel tube confinement steel concrete separated column and preparation method thereof |
CN108104369A (en) * | 2017-12-15 | 2018-06-01 | 刘明辉 | Constraint composite column structure for building |
CN110977227A (en) * | 2019-12-23 | 2020-04-10 | 国创建设工程有限公司 | Manufacturing process of box-type combined column |
CN113653261A (en) * | 2021-09-14 | 2021-11-16 | 北京天邦巨成科技有限公司 | Multi-cavity combined concrete-filled steel tube special-shaped column |
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CN101555721A (en) * | 2009-05-06 | 2009-10-14 | 北京航空航天大学 | Multi-chamber type steel tube concrete special-shaped column |
CN102587577A (en) * | 2012-03-15 | 2012-07-18 | 天津大学 | Steel tube-I beam combination steel tube concrete special-shaped columns and manufacture method thereof |
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2013
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JPH06257222A (en) * | 1993-03-08 | 1994-09-13 | Nippon Steel Corp | Building using steel pipe post |
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105822017A (en) * | 2015-01-08 | 2016-08-03 | 黄通 | High strength combination column |
CN105714934B (en) * | 2016-02-22 | 2018-01-16 | 华北理工大学 | Assembled concrete filled steel tube Special-Shaped Column king post joint attachment structure and its construction method |
CN105714934A (en) * | 2016-02-22 | 2016-06-29 | 华北理工大学 | Node connecting structure of assembled circular concrete-filled steel tube special-shaped column-in-column and construction method of node connecting structure |
CN105672572A (en) * | 2016-03-18 | 2016-06-15 | 广西大学 | Multi-bundle-shaped ultra-high-performance concrete constraint common concrete L-shaped column and L-shaped short-leg shear wall |
CN105672570A (en) * | 2016-03-18 | 2016-06-15 | 广西大学 | Multi-bundle-shaped ultra-high-performance concrete constraint common concrete T-shaped column and T-shaped short-leg shear wall |
CN105649239A (en) * | 2016-03-18 | 2016-06-08 | 广西大学 | Multi-bundle-shaped ultra-high performance concrete-confined normal concrete cross-shaped column and cross-shaped short-leg shear wall |
CN106522468A (en) * | 2016-10-17 | 2017-03-22 | 西安建筑科技大学 | Confined concrete combination column |
CN106522468B (en) * | 2016-10-17 | 2019-08-06 | 西安建筑科技大学 | A kind of confined concrete coupled column |
CN107299722A (en) * | 2017-08-17 | 2017-10-27 | 北京汇筑建筑科技有限公司 | Concrete-filled rectangular steel tube Special-Shaped Column and its construction method |
CN107433679A (en) * | 2017-09-20 | 2017-12-05 | 沈阳建筑大学 | A kind of New Thin-walled steel tube confinement steel concrete separated column and preparation method thereof |
CN108104369A (en) * | 2017-12-15 | 2018-06-01 | 刘明辉 | Constraint composite column structure for building |
CN110977227A (en) * | 2019-12-23 | 2020-04-10 | 国创建设工程有限公司 | Manufacturing process of box-type combined column |
CN110977227B (en) * | 2019-12-23 | 2022-02-22 | 国创建设工程有限公司 | Manufacturing process of box-type combined column |
CN113653261A (en) * | 2021-09-14 | 2021-11-16 | 北京天邦巨成科技有限公司 | Multi-cavity combined concrete-filled steel tube special-shaped column |
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Application publication date: 20130814 |