CN105113717B - Interior truss type steel tube concrete L-shaped post and its construction method - Google Patents
Interior truss type steel tube concrete L-shaped post and its construction method Download PDFInfo
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- CN105113717B CN105113717B CN201510525070.3A CN201510525070A CN105113717B CN 105113717 B CN105113717 B CN 105113717B CN 201510525070 A CN201510525070 A CN 201510525070A CN 105113717 B CN105113717 B CN 105113717B
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Abstract
The invention discloses a kind of interior truss type steel tube concrete L-shaped post and its construction method, wherein the interior truss type steel tube concrete L-shaped post includes outside steel pipe, interior fill concrete and interior truss；The interior truss subelement that the interior truss includes T steel, is welded by T steel, and the lacing along T steel longitudinal direction weld T steel web in T steel web and interior truss subelement；The T steel and interior truss subelement are located at the edge of quadrangle, and the cross section of the outside steel pipe is in Γ shapes or ∏ shapes, is welded and fixed with the flange plate of T steel.In the present invention, interior truss carries out drawknot in the corner of chapped pipe, and so as to reduce the effective width of steel plate, fulcrum is provided to be deformed outside steel plain, the anti-unstability ability of steel plate can be improved and improve the confined effect of post, significantly improve the bearing capacity of steel pipe concrete profiled pile.
Description
Technical field
The present invention relates to Special-Shaped Column, especially a kind of steel pipe concrete profiled pile.
Background technology
With the development of society and stepping up for Living consumption, resident family generally wishes that corner can be smooth inside house
Smooth, neat appearance.Which forms the design philosophy of special-shaped column structure.But as high-rise and high-rise building gradually increases
More, the increase of upper load, the bearing capacity of traditional shaped rc columnses can not meet to want bearing capacity in engineering
Ask.
Traditional reinforced concrete structure is compared to, steel core concrete column is because peripheral steel pipe is to core space concrete
Confinement effect, the compression bearing of post are significantly improved.But existing steel core concrete column still suffers from many problems.
The content of the invention
As shown in figure 1, applicant is computed and found after testing：Existing steel pipe concrete profiled pile due to cross section geometric not
Stability and steel plate meeting outward bulge when being pressurized are bent, and diagonal of the Confinement effect only between outer convex angular point is present, and leads
Its performance is caused not reach expection.
Goal of the invention：One purpose is to provide a kind of interior truss type steel tube concrete L-shaped post, to solve prior art presence
Above mentioned problem.Further objective is that provide a kind of construction method of above-mentioned interior truss type steel tube concrete L-shaped post.
Technical scheme：A kind of interior truss type steel tube concrete L-shaped post, including outside steel pipe, interior fill concrete and interior purlin
Frame；Wherein, the interior truss subelement that the interior truss includes T steel, is welded by T steel, and it is longitudinally overlapping along T steel
It is welded in the lacing of T steel web in T steel web and interior truss subelement；The T steel and interior truss subelement are located at four
The edge of side shape, the cross section of the outside steel pipe is in Γ shapes or ∏ shapes, is welded and fixed with the flange plate of T steel.
In a further embodiment, the interior fill concrete uses more than C45 concrete.The lacing is into Z-shaped
Shape is longitudinally uniformly arranged along T steel.The T steel has H profile steel to be formed along axis wire cutting.
Further, present invention also offers a kind of method for manufacturing above-mentioned interior truss type steel tube concrete L-shaped post, including
Following steps：
Step 1. is prefabricated or preparation T steel, lacing and outside steel pipe, T steel are formed by H profile steel along axis wire cutting；
Lacing is welded on the web of T steel by step 2., and welding manner is angle welding, is welded between parallel lacing
Overlap joint lacing is connect, forms Z-shaped longitudinal lacing structure；By the flange plate vertical welding of a pair of T steels, truss is single in formation
Member；Outside steel pipe and T steel or the flange plate of interior truss subelement, welding manner is groove welding or angle welding；Form cross section
For the cylinder of L-shaped；
Step 3. lifts cylinder to predetermined position, and steel pipe bottom and column root-plate are welded and fixed, Covered with Angles of polishing
The rusty stain of pipe surface, brush antirust paint；
Step 4. pours interior fill concrete, maintenance to defined age.
Beneficial effect：In the present invention, interior truss carries out drawknot in the corner of chapped pipe, so as to reduce the effective of steel plate
Width, fulcrum is provided to deform outside steel plain, it is possible to increase the anti-unstability ability of steel plate and improve the confined effect of post, make
The bearing capacity of steel pipe concrete profiled pile significantly improves.Separately exist, interior truss will not split column section, and casting concrete is convenient；
Finally, the present invention can be prefabricated in the factory, quick and convenient without formwork and configuration reinforcement, construction at the scene.
Brief description of the drawings
Fig. 1 is the set tube effect schematic diagram of existing L-shaped post.
Fig. 2 is the Confinement effect schematic diagram of interior truss type steel tube concrete L-shaped post.
Fig. 3 is the cross-sectional view of interior truss type steel tube concrete L-shaped post.
Fig. 4 a and Fig. 4 b are the dimensional structure diagram of interior truss type steel tube concrete L-shaped post.
Fig. 5 is the deformation schematic diagram of each several part after interior truss type steel tube concrete L-shaped post is pressurized.
Embodiment
As shown in Fig. 3, Fig. 4 a and Fig. 4 b, interior truss type steel tube concrete L-shaped post of the invention mainly includes outside steel pipe
1st, interior fill concrete 4 and interior truss.Wherein, the basic composition component of interior truss is T steel 2 and lacing 3.In the embodiment
In, there is the flange plate vertical welding of one group of T steel, form an interior truss subelement.There are 2 T steels, the two T-shaped in addition
Lacing is welded with the web of steel, the other end of lacing is welded on the T steel web in interior truss subelement.
As shown in Figure 4 b, the framework of L-shaped is formed after welding.T steel and interior truss subelement 2a are located at quadrangle in other words
Three edges, in other words positioned at three edges of a quadrangle cylinder.It was found from from Fig. 4 a and Fig. 4 b, ∏ shape steel pipes
There are 2, Γ shape steel pipes have 1, and its end is welded and fixed with the flange plate of T steel respectively, form the L-shaped cylinder knot in cross section
Structure, it forms weld part 21 with flange plate junction.From Fig. 4 a or Fig. 4 b, there is part to be arranged in parallel in lacing,
It is longitudinally perpendicular with T-shaped plate in other words, overlap joint lacing is welded between adjacent parallel lacing, is formed in a zigzag or Z-shaped
Lacing structure.In other words, the end plate of lacing mutually overlaps, along the Longitudinal extending of T-shaped plate.
It should be noted that Fig. 4 a and Fig. 4 b are only to have intercepted part-structure, for describing each composition component of L-shaped cylinder
Shape and position, and annexation.
In a further embodiment, the interior fill concrete uses more than C45 concrete.The lacing is into Z-shaped
Shape is longitudinally uniformly arranged along T steel.The T steel has H profile steel to be formed along axis wire cutting.
Further, the method that the description present invention manufactures above-mentioned interior truss type steel tube concrete L-shaped post, this method are mainly wrapped
Include following steps：
Step 1. is prefabricated or preparation T steel, lacing and outside steel pipe, T steel are formed by H profile steel along axis wire cutting；
Lacing is welded on the web of T steel by step 2., and welding manner is angle welding, is welded between parallel lacing
Overlap joint lacing is connect, forms Z-shaped longitudinal lacing structure；By the flange plate vertical welding of a pair of T steels, truss is single in formation
Member；Outside steel pipe and T steel or the flange plate of interior truss subelement, welding manner is groove welding or angle welding；Form cross section
For the cylinder of L-shaped；
Step 3. lifts cylinder to predetermined position, and steel pipe bottom and column root-plate are welded and fixed, Covered with Angles of polishing
The rusty stain of pipe surface, brush antirust paint；
Step 4. pours interior fill concrete, maintenance to defined age.
As shown in Fig. 2 to Fig. 4 b, the present invention is split different in nature section using appropriate connected mode, is changed into some
Rectangular area, then confined effect can be significantly improved.
In the above-described embodiments, interior truss carries out drawknot in the corner of chapped pipe, so as to reduce effective width of steel plate
Degree, fulcrum is provided to be deformed outside steel plain, the anti-unstability ability of steel plate is improved and improves the confined effect of post（Participate in Fig. 5
Schematic diagram）, significantly improve the bearing capacity of steel pipe concrete profiled pile.And compared with reinforced concrete structure, steel pipe mixes
Stirrup and vertical muscle need not be configured by coagulating native Special-Shaped Column, without formwork, convenient and quick construction.
Project case one
In this embodiment, interior truss type steel tube concrete L-shaped post is mainly by outside steel pipe, T steel, lacing and interior filling
Coagulation local soil type into.Outside steel pipe uses 3~5mm steel plates, is welded with T steel.T steel is connected to form interior girder system with lacing.
Lacing is tilted and is continuously welded on T steel web.T steel is that the shaped steel of HW100 × 100 × 5 × 3 forms along axis wire cutting, is sewed
Bar is 3mm thickness, the wide steel bars of 50mm.It is 300mm that lacing is vertically arranged spacing along T steel.Interior fill concrete is high using more than C45
Reinforced concrete.
In manufacturing process, first lacing is connected with T steel, truss in formation, the company by interior truss to outside steel pipe
Tap into row positioning and support.Outside steel pipe, lacing and the T steel prefabricated integral L-shaped steel pipe in factory.During construction,
Prefabricated L-shaped steel pipe transmission is lifted into predetermined installation site, post bottom, which be welded and fixed in backward, pours interior filling coagulation
Soil.
As shown in figure 5, when bearing vertical pressure, interior fill concrete outwards expands.Due to interior truss drawknot, Covered with Angles
The constraint of internal fill concrete formation laterally inwardly is managed, interior fill concrete is in three dimension stress state, is carried so as to reach
The effect of high-bearing capacity.
The prefabrication of L-shaped steel pipe：T steel is connected to form interior truss with lacing.Wherein, the end of lacing should exceed T-shaped
Steel web center line 10mm.The two is attached using angle welding.When outside steel pipe is thicker, outside steel pipe is adopted with the T steel edge of a wing
Welded with groove welding, if outside steel pipe is relatively thin, fillet weld seam can be used on T steel.
Construction and installation process：
Before lifting, should calculate L-shaped steel pipe by curved and shear capacity, and select rational Hoisting Program.L-shaped steel pipe is being hung
Assume that shearing is all undertaken by interior truss during dress, the shearing undertaken per truss structure answers mean allocation.Truss deformation is controlled in elasticity
In the range of, and it is multiplied by 0.8 safety index.L-shaped lifting steel pipes are to after predetermined installation site, by steel pipe bottom and column root-plate
Welding.Then, polishing surface rusty stain, antirust paint is brushed.After L-shaped penstock installation, interior fill concrete is internally poured.Support
Protect regulation age.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of equivalents can be carried out to technical scheme, this
A little equivalents belong to protection scope of the present invention.
Claims (1)
1. the method for truss type steel tube concrete L-shaped post in manufacture, it is characterised in that the interior truss type steel tube concrete L-shaped
Post includes outside steel pipe（1）, interior fill concrete（4）With interior truss；Wherein, the interior truss includes T steel（2）, by T steel
The interior truss subelement being welded（2a）, and along T steel longitudinal direction weld in T steel web and interior truss subelement
The lacing of T steel web（3）；The T steel and interior truss subelement are located at three arms of angle of quadrangle, the outside steel pipe
Cross section be in Γ shapes or ∏ shapes, be welded and fixed with the flange plate of T steel；
The steel pipe of ∏ shapes has 2, and the steel pipe of Γ shapes has 1, and its end is welded and fixed with the flange plate of T steel respectively, is formed horizontal
The L-shaped column structure in section, it forms weld part with flange plate junction；
The interior fill concrete uses more than C45 concrete；The lacing is longitudinally uniformly arranged into zigzag along T steel；Institute
T steel is stated to be formed along axis wire cutting by H profile steel；Be welded with overlap joint lacing between adjacent parallel lacing, formed in a zigzag or
Z-shaped lacing structure；
Methods described comprises the following steps：
Step 1. is prefabricated or preparation T steel, lacing and outside steel pipe, T steel are formed by H profile steel along axis wire cutting；
Lacing is welded on the web of T steel by step 2., and welding manner is angle welding, is welded and is taken between parallel lacing
Lacing is connect, forms Z-shaped longitudinal lacing structure；By the flange plate vertical welding of a pair of T steels, truss subelement in formation；Outside
The flange plate with T steel or interior truss subelement is managed by Baogang, and welding manner is groove welding or angle welding；Formation cross section is L-shaped
Cylinder；
Step 3. lifts cylinder to predetermined position, and steel pipe bottom and column root-plate are welded and fixed, outside steel pipe table of polishing
The rusty stain in face, brush antirust paint；
Step 4. pours interior fill concrete, maintenance to defined age；
Odd-shaped cross section is split, changes into some rectangular areas, then confined effect can be significantly improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510525070.3A CN105113717B (en) | 2015-08-24 | 2015-08-24 | Interior truss type steel tube concrete L-shaped post and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510525070.3A CN105113717B (en) | 2015-08-24 | 2015-08-24 | Interior truss type steel tube concrete L-shaped post and its construction method |
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| Publication Number | Publication Date |
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| CN105113717A CN105113717A (en) | 2015-12-02 |
| CN105113717B true CN105113717B (en) | 2017-11-24 |
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| CN201510525070.3A Expired - Fee Related CN105113717B (en) | 2015-08-24 | 2015-08-24 | Interior truss type steel tube concrete L-shaped post and its construction method |
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Families Citing this family (6)
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| CN105604187B (en) * | 2016-01-27 | 2018-01-19 | 北京工业大学 | A kind of assembling type steel structure beam column node connection device |
| CN106368384A (en) * | 2016-11-17 | 2017-02-01 | 中通钢构股份有限公司 | Steel tube concrete column with oblique stiffeners inside |
| CN107663926B (en) * | 2017-09-29 | 2023-09-15 | 浙江省建工集团有限责任公司 | L-shaped steel tube concrete composite column |
| CN108457424B (en) * | 2018-04-18 | 2024-01-02 | 楼东浩 | T-shaped steel tube concrete composite column with internal connecting piece and manufacturing method thereof |
| CN112324215B (en) * | 2019-12-04 | 2022-10-21 | 安阳工学院 | Ultra-large space truss structure supporting spiral undercut steel plate bin and construction method thereof |
| CN114278131B (en) * | 2021-12-22 | 2022-09-09 | 上海大学 | Warehouse-frame integrated building with primary and secondary structures and construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10280613A (en) * | 1997-04-03 | 1998-10-20 | Nishimatsu Constr Co Ltd | Concrete filling steel pile column and concrete slab placing method using it |
| CN1987014A (en) * | 2006-12-25 | 2007-06-27 | 哈尔滨工业大学 | Irregular steel tube concrete pole with steel bar reinforcement |
| CN101858124A (en) * | 2010-06-07 | 2010-10-13 | 南昌大学 | Novel seismic hardening constructional column of masonry structure |
| CN202627323U (en) * | 2011-12-26 | 2012-12-26 | 北京工业大学 | Lattice type single-row reinforcing bar L-shaped section concrete column |
| CN103184782A (en) * | 2013-04-09 | 2013-07-03 | 广西大学 | L-shaped steel concrete special-shaped column of supporting angle steel framework |
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2015
- 2015-08-24 CN CN201510525070.3A patent/CN105113717B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10280613A (en) * | 1997-04-03 | 1998-10-20 | Nishimatsu Constr Co Ltd | Concrete filling steel pile column and concrete slab placing method using it |
| CN1987014A (en) * | 2006-12-25 | 2007-06-27 | 哈尔滨工业大学 | Irregular steel tube concrete pole with steel bar reinforcement |
| CN101858124A (en) * | 2010-06-07 | 2010-10-13 | 南昌大学 | Novel seismic hardening constructional column of masonry structure |
| CN202627323U (en) * | 2011-12-26 | 2012-12-26 | 北京工业大学 | Lattice type single-row reinforcing bar L-shaped section concrete column |
| CN103184782A (en) * | 2013-04-09 | 2013-07-03 | 广西大学 | L-shaped steel concrete special-shaped column of supporting angle steel framework |
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