CN204475670U - The steel core concrete column of the semicontinuous reinforcing cage of a kind of built-in preprocessing - Google Patents
The steel core concrete column of the semicontinuous reinforcing cage of a kind of built-in preprocessing Download PDFInfo
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- CN204475670U CN204475670U CN201520082003.4U CN201520082003U CN204475670U CN 204475670 U CN204475670 U CN 204475670U CN 201520082003 U CN201520082003 U CN 201520082003U CN 204475670 U CN204475670 U CN 204475670U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 108
- 239000010959 steel Substances 0.000 title claims abstract description 108
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 60
- 239000004567 concrete Substances 0.000 title claims abstract description 59
- 238000007781 pre-processing Methods 0.000 title claims abstract description 20
- 230000002787 reinforcement Effects 0.000 claims abstract description 39
- 238000005192 partition Methods 0.000 claims abstract description 21
- 208000002925 dental caries Diseases 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000003466 welding Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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Abstract
The utility model relates to the steel core concrete column of the semicontinuous reinforcing cage of a kind of built-in preprocessing, and described steel pipe column comprises steel cylinder and the continuity reinforcement(bar) cage that inside is prefabricated with interrupted reinforcing cage; The entirety that the steel cylinder that described inside is prefabricated with interrupted reinforcing cage is made up of interrupted reinforcing cage, huge steel cylinder and tension member; Described huge steel cylinder inside is become several cavitys by longitudinal vertical clapboard with Horizontal vertical baffle for separating, transverse partition panel is arranged at intervals with along short transverse in each cavity, described interrupted reinforcing cage is between adjacent transverse demarcation strip, and it connects into entirety by tension member and huge steel cylinder inwall; Described continuity reinforcement(bar) cage, along the elongated setting of cavity length, has the hole passed for continuity reinforcement(bar) cage in the middle part of described transverse partition panel.Present application addresses the technical problem that overlong jumbo concrete filled steel tube rod structure compressive strength is low and fireproof performance is poor, can in extensive use and Super High longspan structure.
Description
Technical field
The utility model relates to a kind of steel core concrete column, particularly the steel core concrete column of the semicontinuous reinforcing cage of a kind of built-in preprocessing.
Background technology
Along with City Building scale constantly increases the requirement with anti-seismic technology, encased structures application is more, conventional encased structures is outside steel pipe, the mode of interior concreting, but there are some problems in this structural form, there is the problem of shrinkage and creep in such as concrete, especially to heavy-gauge steel pipe concrete, the larger concrete of internal volume after contractions, microcrack is there is with steel pipe, may cause concrete and steel pipe cannot be simultaneously stressed like this, reach predetermined stressed effect.
For solving the problem, also there is a kind of large-section steel pipe concrete column as shown in Figure 1, its structural form comprises the steel cylinder that outside steel pipe 1 encloses, core space places continuous print reinforcing cage, continuous print reinforcing cage is welded by elongated longitudinal reinforcement 4 and little stirrup 3 and is formed, vertical continuity reinforcement(bar) 11 is placed in dispersion between continuous print reinforcing cage and steel cylinder, the mode of interior pouring reinforcement concrete, this form of structure enhances to a certain extent and limits concrete contraction, add the globality of outer steel pipe and inner concrete, the toughness that setting due to reinforcing bar adds steel core concrete column improves its anti-seismic performance to a certain extent, this form of structure is applicable to the larger situation of column cross-section size.
Said structure is in specific implementation process, there are the following problems: from structure stress angle, the stirrup of said structure form owing to only having core space to have horizontal restrain, the unconfined lateral tie of large-area concrete, under outside load action, wherein radicals by which characters are arranged in traditional Chinese dictionaries first destroy, as shown in Figure 2, as we can see from the figure under outer load F effect, the curvature in the middle part of deformation curve 1 is very large, occurs bulging phenomenon.That also increases horizontal restrain why not to large-area concrete, improve its compressive strength, it has its source in, the construction of large-section steel pipe concrete column reinforcing bar part needs to enter in steel pipe, it is narrow and small that workman enters construction space in steel pipe, activity duration is long, and job site is often easy to have an accident for multiplex (MUX) plants cross-operation.Therefore, apply horizontal restrain at the continuity reinforcement(bar) of the discrete distribution of existing large-section steel pipe concrete column cannot implement at the scene.
Utility model content
The purpose of this utility model is to provide the steel core concrete column of the semicontinuous reinforcing cage of a kind of built-in preprocessing, the technical problem solved is the compressive strength strengthening existing large-section steel pipe concrete column, improve its bearing capacity and reduce its difficulty of construction, improving the technical problem of efficiency of construction and working security.
For achieving the above object, the utility model adopts following technical scheme:
A steel core concrete column for the semicontinuous reinforcing cage of built-in preprocessing, comprises concrete, steel cylinder that inside is prefabricated with interrupted reinforcing cage and continuity reinforcement(bar) cage; The entirety that the steel cylinder that described inside is prefabricated with interrupted reinforcing cage is made up of interrupted reinforcing cage, huge steel cylinder and tension member; Described huge steel cylinder inside is become several cavitys by longitudinal vertical clapboard with Horizontal vertical baffle for separating, transverse partition panel is arranged at intervals with along short transverse in each cavity, described interrupted reinforcing cage is between adjacent transverse demarcation strip, and it connects into entirety by tension member and huge steel cylinder inwall; Described continuity reinforcement(bar) cage, along the elongated setting of cavity length, has the hole passed for continuity reinforcement(bar) cage in the middle part of described transverse partition panel.
Further, the single piece of described transverse partition panel center hole or multiple separate piece of radial distribution centered by steel cylinder center.
Further, described encased steel plate, longitudinal vertical clapboard or Horizontal vertical baffle surface are welded with peg.
Further, described transverse partition panel arranges at least one deck at same position.
Further, described transverse partition panel is 0.2m ~ 30m along the setting space in described housing depth direction.
Further, described tension member is straight bar dowel, the bar dowel of end belt elbow, steel cushion block or clamp.
Preferably, the cross section of described huge steel cylinder and/or described cavity is circle, polygon or cross.
Compared with prior art the utility model has following characteristics and beneficial effect:
The utility model proposes a kind of novel steel core concrete column form of structure, this structure is owing to being set to one by huge steel cylinder and interrupted reinforcing cage, both met and applied horizontal restrain to interrupted longitudinal reinforcement, improve the huge post compressive strength of concrete filled steel tube, meanwhile, without the need to or reduce in steel cylinder and construct, the efficiency of construction of raising, reduce difficulty of construction, the incidence of the accident of minimizing.
Applying horizontal restrain by giving interrupted longitudinal reinforcement enables steel pipe and concrete at construction and serviceability limit stage close contact, gives full play to steel pipe to concrete effect of contraction, fully reduces the adverse effect that concrete shrinkage is brought bearing capacity.
The utility model proposes a kind of novel steel core concrete column form of structure and there is good anti-seismic performance.First, multi-cavity steel tube forms multi-cavity space constraint to concrete, simultaneously, conventional steel concrete column destroys the central region mainly occurring in post, this Novel pole indulges by non-interconnected the stirrup that muscle arranges at middle part, play the effect strengthening middle part concrete constraint, bearing capacity and the ductility of the antidetonation of steel core concrete column can be improved further.
The reinforcing cage that the utility model proposes a kind of novel its inside of steel core concrete column comprises continuity reinforcement(bar) cage and interrupted reinforcing cage; interrupted reinforcing cage forms the semi-connected steel concrete part of built-in reinforcing bar together with concrete; in a fire; first encased steel plate lost efficacy; but built-in steel concrete part forms reinforced concrete post; the load born in fire can be continued, thus effectively improve the fire resistance property of structure.
In work progress, non-interconnected in the utility model indulges muscle preprocessing can become reinforcing cage with stirrup, by connector and steel-pipe welding to together with, transport directly to job site, connection reinforcing bar and stirrup can preprocessing be also reinforcing cage, steel plate is also preprocessing, effectively can improve construction quality, shortens the engineering time.
The utility model can be widely used in Super High longspan structure.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail.
The profile of the existing large-section steel pipe concrete column of Fig. 1.
Fig. 2 is the distortion schematic diagram under the effect of existing large-section steel pipe concrete column outer load.
Fig. 3 is single chamber steel core concrete column longitudinal sectional view.
Fig. 4 is A-A sectional elevation of Fig. 1.
Fig. 5 is the another kind of sectional elevation of A-A of Fig. 1.
Fig. 6 is B-B sectional elevation of Fig. 1.Fig. 7 is the another kind of sectional elevation of B-B of Fig. 1.Fig. 8 is construction method flow chart.
Fig. 9 is the second multi-cavity steel tube concrete post longitudinal sectional view.
Figure 10 is E-E sectional elevation of Fig. 9.
Figure 11 is E-E the second sectional elevation of Fig. 9.
Figure 12 is the third sectional elevation of E-E of Fig. 9.
Figure 13 is the F-F sectional elevation of Fig. 9.
Figure 14 is the stress deformation schematic diagram of the steel core concrete column of the semicontinuous reinforcing cage of built-in preprocessing.
Reference numeral: the elongated longitudinal reinforcement of 1-encased steel plate, 2-lateral partitions, the little stirrup of 3-, 4-, the large stirrup of 5-, the non-elongated longitudinal reinforcement of 6-, 7-concrete, 8-tension member, 9-Horizontal vertical dividing plate, 10-longitudinal vertical clapboard, the continuous longitudinal reinforcement of 11-, 12-deformation curve one, 13-deformation curve two.
Detailed description of the invention
For describing the technical solution of the utility model in detail, provide specific embodiment below in conjunction with accompanying drawing.
Embodiment one, see Fig. 3, Fig. 4, Fig. 6 and Fig. 7, is the steel core concrete column of the semicontinuous reinforcing cage of a kind of built-in preprocessing, comprises steel cylinder and continuity reinforcement(bar) cage that inside is prefabricated with interrupted reinforcing cage; The entirety that the steel cylinder that described inside is prefabricated with interrupted reinforcing cage is made up of interrupted reinforcing cage, huge steel cylinder and tension member 8; Described huge steel cylinder inside is separated into several cavitys by longitudinal vertical clapboard 10 and Horizontal vertical dividing plate 9, transverse partition panel 2 is arranged at intervals with along short transverse in each cavity, described interrupted reinforcing cage is between adjacent transverse demarcation strip 2, and it connects into entirety by tension member 8 and huge steel cylinder inwall; Described continuity reinforcement(bar) cage, along the elongated setting of cavity length, has the hole passed for continuity reinforcement(bar) cage in the middle part of described transverse partition panel 2.Described core reinforcing cage is identical with interrupted reinforcing cage central axis, and described concreting is in cavity and described continuity reinforcement(bar) cage and the gap between described continuity reinforcement(bar) cage and described interrupted reinforcing cage.In this embodiment, the number of cavity is one.
Further, described continuity reinforcement(bar) cage is formed by connecting by elongated longitudinal reinforcement 4, little stirrup 5.
Further, described interrupted reinforcing cage is formed by connecting by non-elongated longitudinal reinforcement 6 and large stirrup 3.
Described large stirrup 5, little stirrup 3 be two kinds of stirrup diameters comparatively speaking, the large diameter of stirrup 5 or the diameter of inscribed circle, be greater than the little diameter of stirrup 3 or the diameter of inscribed circle.
Further, described large stirrup 5 and little stirrup 3 are circular stirrups.
Further, the cross section of described steel cylinder and cavity is square.
Described transverse partition panel 2 arranges at least one deck at same position, and the present embodiment is two-layer, and described transverse partition panel 2 is 0.2m ~ 30m along the setting space in described housing depth direction.Common setting position is at floor position.
The single piece of described transverse partition panel 2 center hole, in other embodiments, described transverse partition panel 2 can also be multiple separate piece of radial distribution centered by tubular structure center.
In order to increase the bond stress between concrete and continuity reinforcement(bar) cage and interrupted reinforcing cage, described encased steel plate, longitudinal vertical clapboard or Horizontal vertical baffle surface are welded with peg.
Described tension member 8 is straight bar dowel, the bar dowel of end belt elbow, steel cushion block or clamp.
Embodiment two see Fig. 9, Figure 10 and Figure 13, with embodiment one unlike, described steel cylinder by longitudinal vertical clapboard 10 and Horizontal vertical dividing plate 9 be separated into 6 cavitys, steel cylinder and cavity are square-section.
The large stirrup 5 forming interrupted reinforcing cage and the little stirrup 3 forming continuity reinforcement(bar) cage are circle.
Embodiment three see Fig. 9, Figure 11 and Figure 13, with embodiment two unlike, form the large stirrup 5 of interrupted reinforcing cage for rectangle, the little stirrup 3 forming continuity reinforcement(bar) cage is circle.
Embodiment four see Fig. 9, Figure 12 and Figure 13, with embodiment three unlike, be provided with tension member 8 between described cavity inner wall and reinforcing cage.Described tension member 8 is the bar dowel of straight bar dowel or end belt elbow.
In order to the technique effect that the technical scheme of technical scheme and prior art that the application is described produces, the steel core concrete column of the semicontinuous reinforcing cage of built-in preprocessing of the application is carried out contrast with the deformation of existing large-section steel pipe concrete column under identical external load effect F and refers to Figure 14, as can be seen from schematic diagram, when huge steel cylinder inside is prefabricated with interrupted reinforcing cage, non-elongated longitudinal reinforcement 6 in interrupted reinforcing cage applies horizontal restrain by large stirrup 3, and after connecting into entirety by connector 8 and the inwall of huge steel cylinder, deformation curve 2 13 in the middle part of steel pipe column obviously reduces than the degree of crook of deformation curve 1, thus prove the applying of horizontal restrain, the compressive strength of the Huge Steel Open tubing string of effective raising and ductility.
The construction method of the steel core concrete column of the above-mentioned semicontinuous reinforcing cage of built-in preprocessing, see Fig. 8, its step is as follows:
Step one, welds form multiple huge steel cylinder module by encased steel plate 1, longitudinal vertical clapboard 10 and Horizontal vertical dividing plate 9, transverse partition panel 2;
Step 2, welds form interrupted reinforcing cage by large stirrup 5, non-elongated longitudinal reinforcement 6; Elongated longitudinal reinforcement 4 and little stirrup 3 are welded simultaneously and form continuity reinforcement(bar) cage;
Step 3, puts into huge steel cylinder module by interrupted reinforcing cage, and welds with huge steel cylinder module inwall and form entirety;
Step 4, forms the multiple huge steel cylinder module standard joint of different length specification;
Step 5, multiple huge steel cylinder module standard joint and continuity reinforcement(bar) cage are transported to job site, and at the scene huge steel cylinder module standard joint are pieced together multi-cavity steel cylinder standard knot, then the continued access of multi-cavity steel cylinder standard knot becomes whole pillar;
Step 6, hangs in the cavity of pillar by continuity reinforcement(bar) cage;
Step 7, concreting, makes concrete, continuity reinforcement(bar) cage, interrupted reinforcing cage and cavity form entirety.The mode of concreting is typically chosen in pump pressure type.
Because this method is applicable to Huge Steel Open pipe concrete column, its cross section is general all comparatively large, and therefore aforesaid way is a kind of typical way, for the steel core concrete column that cross section is less, also can omit huge steel cylinder module standard joint making link, directly be made as multi-cavity steel cylinder standard knot.
Wherein, the welding of described continuity reinforcement(bar) cage also can be transported to on-the-spot rear welding at multi-cavity steel cylinder standard knot, and now corresponding omission continuity reinforcement(bar) cage transports link.
Wherein, in described step 3, when interrupted reinforcing cage is welded with cavity inner wall, in advance in cavity inner wall interval welded connections 8.
Wherein, in step one, when encased steel plate, longitudinal vertical clapboard and Horizontal vertical dividing plate, transverse partition panel welding are formed multiple huge steel cylinder module, in advance in surface of steel plate weld stud.
Claims (7)
1. a steel core concrete column for the semicontinuous reinforcing cage of built-in preprocessing, is characterized in that: comprise concrete, steel cylinder that inside is prefabricated with interrupted reinforcing cage and continuity reinforcement(bar) cage; The entirety that the steel cylinder that described inside is prefabricated with interrupted reinforcing cage is made up of interrupted reinforcing cage, huge steel cylinder and tension member (8); Described huge steel cylinder inside is separated into several cavitys by longitudinal vertical clapboard (10) and Horizontal vertical dividing plate (9), transverse partition panel (2) is arranged at intervals with along short transverse in each cavity, described interrupted reinforcing cage is positioned between adjacent transverse demarcation strip (2), and it connects into entirety by tension member (8) and huge steel cylinder inwall; Described continuity reinforcement(bar) cage is along the elongated setting of cavity length, and there is the hole passed for continuity reinforcement(bar) cage at described transverse partition panel (2) middle part.
2. the steel core concrete column of the semicontinuous reinforcing cage of built-in preprocessing according to claim 1, is characterized in that: the single piece of described transverse partition panel (2) center hole or multiple separate piece of radial distribution centered by steel cylinder center.
3. the steel core concrete column of the semicontinuous reinforcing cage of built-in preprocessing according to claim 1 and 2, is characterized in that: described encased steel plate (1), longitudinal vertical clapboard (10) or Horizontal vertical dividing plate (9) surface soldered have peg.
4. the steel core concrete column of the semicontinuous reinforcing cage of built-in preprocessing according to claim 3, is characterized in that: described transverse partition panel (2) arranges at least one deck at same position.
5. the steel core concrete column of the semicontinuous reinforcing cage of built-in preprocessing according to claim 3, is characterized in that: described transverse partition panel (2) is 0.2m ~ 30m along the setting space in described housing depth direction.
6. the steel core concrete column of the semicontinuous reinforcing cage of built-in preprocessing according to claim 1, is characterized in that: described tension member (8) is straight bar dowel, the bar dowel of end belt elbow, steel cushion block or clamp.
7. the steel core concrete column of the semicontinuous reinforcing cage of built-in preprocessing according to claim 1, is characterized in that: the cross section of described huge steel cylinder and/or described cavity is circle, polygon or cross.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520082003.4U CN204475670U (en) | 2015-02-05 | 2015-02-05 | The steel core concrete column of the semicontinuous reinforcing cage of a kind of built-in preprocessing |
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| CN201520082003.4U CN204475670U (en) | 2015-02-05 | 2015-02-05 | The steel core concrete column of the semicontinuous reinforcing cage of a kind of built-in preprocessing |
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| CN204475670U true CN204475670U (en) | 2015-07-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675019A (en) * | 2015-02-05 | 2015-06-03 | 姚攀峰 | Concrete-filled steel tube column with built-in preprocessed semi-continuous steel reinforcement cage and construction method of concrete-filled steel tube column |
| CN106760206A (en) * | 2016-12-15 | 2017-05-31 | 中国建筑第八工程局有限公司 | Spigot-and-socket reinforcement cage structure and its construction method in steel pipe column |
| CN115450376A (en) * | 2022-08-22 | 2022-12-09 | 华地恒工程咨询有限公司 | Combined steel structure high-strength concrete column structure |
-
2015
- 2015-02-05 CN CN201520082003.4U patent/CN204475670U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675019A (en) * | 2015-02-05 | 2015-06-03 | 姚攀峰 | Concrete-filled steel tube column with built-in preprocessed semi-continuous steel reinforcement cage and construction method of concrete-filled steel tube column |
| CN106760206A (en) * | 2016-12-15 | 2017-05-31 | 中国建筑第八工程局有限公司 | Spigot-and-socket reinforcement cage structure and its construction method in steel pipe column |
| CN106760206B (en) * | 2016-12-15 | 2019-07-30 | 中国建筑第八工程局有限公司 | Spigot-and-socket reinforcement cage structure and its construction method in steel pipe column |
| CN115450376A (en) * | 2022-08-22 | 2022-12-09 | 华地恒工程咨询有限公司 | Combined steel structure high-strength concrete column structure |
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Granted publication date: 20150715 Effective date of abandoning: 20170419 |