CN105113716B - The many floors of major diameter are high to throw self-compaction steel tube concrete superposed column construction method - Google Patents
The many floors of major diameter are high to throw self-compaction steel tube concrete superposed column construction method Download PDFInfo
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- CN105113716B CN105113716B CN201510571144.7A CN201510571144A CN105113716B CN 105113716 B CN105113716 B CN 105113716B CN 201510571144 A CN201510571144 A CN 201510571144A CN 105113716 B CN105113716 B CN 105113716B
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Abstract
The present invention relates to a kind of many floors of major diameter throwing self-compaction steel tube concrete superposed column construction method high, main construction procedure includes：(1) cast-in fixing bolt is installed；(2) steel pipe stem is installed；(3) steel reinforcement cage hangs；(4) adjustment steel pipe stem position；(5) core column concrete is poured；(6) outboard template is installed；(7) outer concrete is poured.Reinforce wing plate end to be connected with welding steel by rotating stand, reinforce wing plate bottom and be connected with welding steel by spring, reinforcing wing plate encounters stirrup in reinforcing cage stirrup decentralization process can be shunk, and level is recovered later；Pour and throw self-compaction method using high, field test is first carried out before pouring, determine the indexs such as concrete strength, apparent mass, conveyed using concrete pump, mode is poured with guide pipe funnel blanking.The advantages of construction method of the present invention has simple to operate, connectivity is strong between component, with preferable economic technology benefit.
Description
Technical field
The present invention relates to the construction method of steel tube concrete superposed column, more particularly to many floors of major diameter throwing self-compaction steel high
The construction method of pipe concrete superposed column.
Background technology
Concrete filled steel tube is interacted due to steel pipe and core concrete, had complementary advantages and has high capacity, shock resistance
Can good, easy construction many advantages, such as, the application in super-high building structure is relatively broad.According to the difference of section form,
Concrete filled steel tube can be divided into the types such as concrete filled steel tube, Concrete-Filled Square Steel Tube and concrete-filled rectangular steel tube, and have substantial amounts of
Case history.Steel tube concrete superposed column grows up on the basis of concrete filled steel tube, by the steel in the middle part of section
Reinforced concrete sandwich outside pipe concrete and steel pipe is formed, and this kind of combined member is not only excellent with concrete filled steel tubular member
Point, and concrete outside steel pipe may also function as fire-resistance effect and is easy to finishing.
Because the collaborative work effect between steel pipe and concrete relies primarily on cementation between the two, and concrete
Self-constriction, temperature shrinkage, the construction quality problem such as concrete vibrating mode during casting concrete can make to be filled between steel pipe walls and concrete
Tap is touched and cannot be guaranteed, and especially when sectional dimension increases, concrete shrinkage is also significantly increased, and steel pipe and concrete can
Unsticking problem can occurs, adhesion strength between the two will accordingly reduce even forfeiture, while be subject in steel pipe walls
Load is that, as the radial distance of steel pipe is gradually transmitted, sectional dimension crosses conference and causes the load cannot effectively to pass to center
Concrete, causes the concrete of central area on section not undertake load effectively, and steel pipe is likely to that overload condition can be in,
These factors all greatly reduce the stress performance of concrete filled steel tube and the security of structure.
In consideration of it, how to strengthen the globality of steel pipe and concrete by new construction method, improve common therebetween
The ability of work, is a problem for urgent need to resolve.
The content of the invention
The purpose of the present invention is to overcome deficiency of the prior art, there is provided a kind of many floors of major diameter are high to throw self-compaction steel pipe
The construction method of concrete superposed column.
To achieve the above object, present invention employs following technical scheme：
The many floors of major diameter are high to throw self-compaction steel tube concrete superposed column construction method, comprises the following steps：
1) cast-in fixing bolt is installed：Cast-in fixing bolt is set before underplate concrete is poured；
2) steel pipe stem is installed：After underplate concrete is poured and reaches predetermined strength, steel pipe stem is lifted by crane
To plate top surface, a cast-in fixing bolt is first inserted in one of looping pit, and with it as fulcrum, makes other three cast-in fixing bolts
It is inserted in looping pit；
3) steel reinforcement cage hangs：After steel pipe stem is halted, supported with additional support, steel reinforcement cage is then hung, outside steel reinforcement cage
The vertical muscle in portion is fixed by the pre-buried pre-buried connecting key of threaded sleeve and base plate；
4) adjustment steel pipe stem position：After steel reinforcement cage is fixed, steel pipe stem is rotated along looping pit, pass through reinforcing wing plate
The hole being arranged above clasps steel reinforcement cage angle muscle, then fixes cast-in fixing bolt；
5) core column concrete is poured：Pour and throw self-compaction method using high, field test is first carried out before pouring, determine coagulation
The indexs such as native intensity, apparent mass, are conveyed using concrete pump, and mode is poured with guide pipe funnel blanking；
6) outboard template is installed：Plank sheathing formwork is used on the outside of steel reinforcement cage, plank sheathing outside is plus reinforcing channel-section steel, wooden model
Flitch is added between plate and channel-section steel, is fixed with bolt using Screw arbor with nut at both-ends between channel-section steel；
7) outer concrete is poured：Pour and throw self-compaction method using high, field test is first carried out before pouring, determine coagulation
The indexs such as native intensity, apparent mass, are conveyed using concrete pump, and mode is poured with guide pipe funnel blanking.
As preferred：Step 2) described in looping pit radian be 30 °~45 °, each looping pit center angle is 90 °.
As preferred：Step 3) described in pre-buried connecting key quantity it is consistent with the vertical muscle in outside, circumferentially arrange.
As preferred：Step 4) described in reinforce wing plate end and be connected with welding steel by rotating stand, reinforcing wing plate
Bottom is connected by spring with welding steel, and reinforcing wing plate encounters stirrup in reinforcing cage stirrup decentralization process can shrink, extensive later
Rehydration is put down.
The beneficial effects of the invention are as follows：
(1) stem steel pipe is first found, steel reinforcement cage is put, the wing plate that rotating stem makes to be set in advance on stem clasps angle muscle, greatly
The big coupling stiffness for enhancing steel pipe stem and outside armored concrete.
(2) stem tube wall sets and is connected with wing plate, and wing plate one end is articulated with stern column, and bottom is connected by oblique spring,
Connector runs into stirrup and straightens in steel reinforcement cage decentralization process, and automatic between stirrup spacing to become level, whole process is simple to operate, implements
Effect is good.
(3) outside vertical muscle bottom is connected with straight screw sleeve, capital steel pipe side transverse weld circular steel plate, the vertical muscle in outside
It is bolted on steel plate, whole overlapping rod structure is big with external connection rigidity.
(4) self-compaction method casting concrete is thrown using high, solves isolation in whole concrete filled steel tube casting process, many
The problems such as density that dividing plate is caused is inadequate.
Brief description of the drawings
Fig. 1 is many floor steel tube concrete superposed column structural representations of major diameter；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the B-B sectional views of Fig. 1；
Fig. 4 is to reinforce wing plate detail of construction；
Fig. 5 is the C-C sectional views of Fig. 4；
Fig. 6 is many floor steel tube concrete superposed column formwork schematic diagrames of major diameter；
Fig. 7 is that many floors of major diameter are high throws self-compaction steel tube concrete superposed column construction flow chart；
Description of reference numerals：1. base plate；2. pre-buried connecting key；3. threaded sleeve；4. cast-in fixing bolt；5. stirrup；6. reinforce
Wing plate；7. steel pipe floor；8. steel pipe stem；9. muscle is indulged in outside；10. capital wing plate；11. top boards；12. fastening bolts；13. annulars
Hole；14. rotating stands；15. connecting springs；16. welding steels；17. Screw arbor with nut at both-ends；18. flitches；19. channel-section steels；20. plank sheathings.
Specific embodiment
The present invention is described further with reference to embodiment.The explanation of following embodiments is only intended to help and understands this
Invention.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, also
Some improvement and modification can be carried out to the present invention, these are improved and modification also falls into the protection domain of the claims in the present invention
It is interior.
Present embodiment welding for steel structure technique, bolt connection construction technology, template-setup technique and concreting are applied
Just do not stated tired in this implementation such as work technique, emphasis illustrates the implementation method the present invention relates to structure.
Fig. 1 is that many floors of major diameter of the present invention are high throws self-compaction steel tube concrete superposed column structural representation.The institute of reference picture 1
Show, many floors of major diameter of the present invention self-compaction steel tube concrete superposed column of throwing high mainly includes：Pre-buried connecting key 2, threaded sleeve
3rd, cast-in fixing bolt 4, stirrup 5, reinforcing wing plate 6, steel pipe floor 7, steel pipe stem 8, outside vertical muscle 9.
Before steel tube concrete superposed column installation, the construction of suspension column bottom cast-in fixing bolt 4 is first carried out, justified along steel pipe stem 8
Week sets 4 looping pits 13.
Shown in reference picture 1, the concreting of base plate 1 and after reaching predetermined strength, by crane by steel pipe stem 8 lift to
Plate top surface, is first inserted in one of looping pit 13 by a cast-in fixing bolt 4, and with it as fulcrum, makes other three pre-buried anchors
Bolt 4 is inserted in looping pit.
Shown in reference picture 1, after steel pipe stem 8 is halted, supported with additional support, steel reinforcement cage is then hung, outside steel reinforcement cage
The vertical muscle 9 in portion is fixed by the pre-buried connecting key 2 pre-buried with base plate of threaded sleeve 3.
Shown in reference picture 2, after steel reinforcement cage is fixed, steel pipe stem 8 is rotated along looping pit 13, make reinforcing wing plate 6 pass through to set
Put superincumbent hole and clasp steel reinforcement cage angle muscle, then fix cast-in fixing bolt 4, and carry out the concreting in stem.
Shown in reference picture 3, the formwork of plank sheathing 20 is used on the outside of steel reinforcement cage, the outside of plank sheathing 20 adds and reinforces channel-section steel 19,
Flitch 18 is added between plank sheathing 20 and channel-section steel 19,19 are fixed using Screw arbor with nut at both-ends 17 with bolt between channel-section steel, carried out outside mixed
Solidifying soil is poured.
When construction is to capital, transverse post roof limb plate 10 is welded in advance in capital, the vertical muscle 9 in outside is passed through on capital wing plate 10
Default hole fastening bolt 12 is fixed.
Present invention also offers many floors of above-mentioned major diameter it is high throw self-compaction steel tube concrete superposed column construction method, mainly
Comprise the following steps：
1) cast-in fixing bolt 4 is installed：Cast-in fixing bolt 4 is set before the concreting of base plate 1.
2) steel pipe stem 8 is installed：The concreting of base plate 1 and after reaching predetermined strength, is hung steel pipe stem 8 by crane
Plate top surface is filled to, a cast-in fixing bolt 4 is first inserted in one of looping pit 13, and with it as fulcrum, make other three in advance
Bury crab-bolt 4 and be inserted in looping pit.
Steel reinforcement cage hangs：After steel pipe stem 8 is halted, supported with additional support, steel reinforcement cage is then hung, outside steel reinforcement cage
Vertical muscle 9 is fixed by the pre-buried connecting key 2 pre-buried with base plate of threaded sleeve 3.
4) position of adjustment steel pipe stem 8：After steel reinforcement cage is fixed, steel pipe stem 8 is rotated along looping pit 13, make reinforcing wing plate
6 hole by being arranged above clasps steel reinforcement cage angle muscle, then fixes cast-in fixing bolt 4.
5) core column concrete is poured：Pour and throw self-compaction method using high, field test is first carried out before pouring, determine coagulation
The indexs such as native intensity, apparent mass, are conveyed using concrete pump, and mode is poured with guide pipe funnel blanking.
6) outboard template is installed：The formwork of plank sheathing 20 is used on the outside of steel reinforcement cage, the outside of plank sheathing 20 is plus reinforcing channel-section steel
19, flitch 18 is added between plank sheathing 20 and channel-section steel 19,19 are fixed using Screw arbor with nut at both-ends 17 with bolt between channel-section steel,
7) outer concrete is poured：Pour and throw self-compaction method using high, field test is first carried out before pouring, determine coagulation
The indexs such as native intensity, apparent mass, are conveyed using concrete pump, and mode is poured with guide pipe funnel blanking.
Step 2) described in the radian of looping pit 13 be 30 °~45 °, the center angle of each looping pit 13 is 90 °.
Step 3) described in the quantity of pre-buried connecting key 2 it is consistent with the vertical muscle 9 in outside, circumferentially arrange.
Step 4) described in reinforce wing plate 6 end and be connected with welding steel 16 by rotating stand, reinforcing wing plate 6 bottom is logical
Cross spring to be connected with welding steel 16, reinforcing wing plate 6 encounters stirrup in reinforcing cage stirrup decentralization process can be shunk, and water is recovered later
It is flat.
Claims (3)
1. a kind of many floors of major diameter are high throws self-compaction steel tube concrete superposed column construction method, it is characterised in that including following
Step：
1) cast-in fixing bolt (4) is installed：Cast-in fixing bolt (4) is set before base plate (1) concreting；
2) steel pipe stem (8) is installed：Base plate (1) concreting and after reaching predetermined strength, by crane by steel pipe stem (8)
One cast-in fixing bolt (4) is first inserted in one of looping pit (13), and with it as fulcrum, make it by lifting to base plate (1) top surface
His three cast-in fixing bolts (4) are inserted in looping pit；
3) steel reinforcement cage hangs：After steel pipe stem (8) is halted, supported with additional support, steel reinforcement cage is then hung, outside steel reinforcement cage
Vertical muscle (9) is fixed by the pre-buried pre-buried connecting key (2) of threaded sleeve (3) and base plate (1)；
4) steel pipe stem (8) position is adjusted：After steel reinforcement cage is fixed, steel pipe stem (8) is rotated along looping pit (13), make the reinforcing wing
Plate (6) clasps steel reinforcement cage angle muscle by the hole being arranged above, and then fixes cast-in fixing bolt (4)；Reinforcing wing plate (6) end
Portion is connected by rotating stand with welding steel (16), is reinforced wing plate (6) bottom and is connected with welding steel (16) by spring, steel
Stirrup is encountered in reinforcing wing plate (6) in muscle cage stirrup decentralization process can be shunk, and level is recovered later；
5) core column concrete is poured：Pour and throw self-compaction method using high, field test is first carried out before pouring, determine strong concrete
The indexs such as degree, apparent mass, are conveyed using concrete pump, and mode is poured with guide pipe funnel blanking；
6) outboard template is installed：Plank sheathing (20) formwork is used on the outside of steel reinforcement cage, plank sheathing (20) outside is plus reinforcing channel-section steel
(19) flitch (18), is added between plank sheathing (20) and channel-section steel (19), (19) use bolt using Screw arbor with nut at both-ends (17) between channel-section steel
It is fixed；
7) outer concrete is poured：Pour and throw self-compaction method using high, field test is first carried out before pouring, determine strong concrete
The indexs such as degree, apparent mass, are conveyed using concrete pump, and mode is poured with guide pipe funnel blanking.
2. many floors of major diameter according to claim 1 are high throws self-compaction steel tube concrete superposed column construction method, and it is special
Levy and be：Step 2) described in looping pit (13) radian be 30 °~45 °, each looping pit (13) center angle is 90 °.
3. many floors of major diameter according to claim 1 are high throws self-compaction steel tube concrete superposed column construction method, and it is special
Levy and be：Step 3) described in pre-buried connecting key (2) quantity it is consistent with the vertical muscle (9) in outside, circumferentially arrange.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510571144.7A CN105113716B (en) | 2015-09-09 | 2015-09-09 | The many floors of major diameter are high to throw self-compaction steel tube concrete superposed column construction method |
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| CN201510571144.7A CN105113716B (en) | 2015-09-09 | 2015-09-09 | The many floors of major diameter are high to throw self-compaction steel tube concrete superposed column construction method |
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| CN105113716B true CN105113716B (en) | 2017-06-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105569327B (en) * | 2015-12-30 | 2018-09-28 | 中国建筑第二工程局有限公司 | A kind of concrete filled steel tube height throws construction frame body and its application method |
| CN105735113B (en) * | 2016-04-20 | 2018-03-09 | 四川省交通运输厅公路规划勘察设计研究院 | Pier stake transition connecting construction and its construction method for concrete filled steel tube bridge |
| CN109457869B (en) * | 2018-11-13 | 2024-04-30 | 上海建工五建集团有限公司 | Pre-burying method and device for concrete column corner protector |
| CN110629932B (en) * | 2019-08-22 | 2021-08-06 | 成都建工集团有限公司 | High-rise steel pipe concrete composite column construction method |
| CN110714528A (en) * | 2019-10-21 | 2020-01-21 | 北京工业大学 | Giant square concrete-filled steel tube member with composite structure |
| CN111894204A (en) * | 2020-06-24 | 2020-11-06 | 中铁五局集团成都工程有限责任公司 | Steel pipe concrete composite column construction method |
| CN111945550A (en) * | 2020-07-21 | 2020-11-17 | 河海大学 | Energy-consuming and shock-absorbing pier structure and construction method and application thereof |
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| CN202519879U (en) * | 2012-01-13 | 2012-11-07 | 汪梦甫 | High damping concrete laminated column for reinforced core steel tube |
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Inventor after: Wu Qiusen Inventor before: Wang Xinquan |
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Effective date of registration: 20170503 Address after: Luohu District Baoan road Shenzhen city Guangdong province 518000 No. 3083 Caiwuwei development building 2101 Applicant after: Shenzhen Golden Century Engineering Industry Co., Ltd. Address before: 310015 Hangzhou Wanda Commercial Center, Zhejiang, building 3, unit 1901, room 3 Applicant before: Hangzhou Jiang Run Science and Technology Ltd. |
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