CN114278012B - Large-section concrete column wrapped with stiffened thick plate square tube and construction method - Google Patents
Large-section concrete column wrapped with stiffened thick plate square tube and construction method Download PDFInfo
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- CN114278012B CN114278012B CN202111578979.7A CN202111578979A CN114278012B CN 114278012 B CN114278012 B CN 114278012B CN 202111578979 A CN202111578979 A CN 202111578979A CN 114278012 B CN114278012 B CN 114278012B
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Abstract
The invention provides a large-section concrete column wrapped with a stiff thick plate square tube and a construction method, and the construction method mainly comprises the following construction steps: mounting a prestressed bracket; grouting a steel square pipe column base; erecting a welding construction platform; erecting a steel pipe concrete column template; erecting steel pipe concrete column channel steel back ridges; and (6) pouring concrete. This scheme adopts the prestressing force support can reduce the steel volume by a wide margin, and the template adopts adjustable clamp spare fixed and set up the channel-section steel in the outside and consolidate, can guarantee the bearing capacity of template, has better comprehensive benefit.
Description
Technical Field
The invention relates to the field of building construction, in particular to a large-section concrete column wrapped with a stiff thick plate square tube and a construction method, and is mainly suitable for pouring construction of a large-scale thick plate concrete filled steel tube column.
Background
With the development of building industry and the improvement of construction level, the rectangular concrete-filled steel tube column is widely applied to high-rise buildings. In the construction process of the concrete filled steel tubular column, how to reasonably carry out the construction and quality control of the rectangular concrete filled steel tubular column so as to more effectively exert the respective advantages to ensure the structural safety is a problem worthy of deep research.
Simultaneously when traditional steel square tubular column installation, in order to ensure that big bottom plate once only pours the completion, need install the steel column earlier before concrete placement, need set up the steel support in the column bottom for fixed steel column, the steel support passes through the built-in fitting and is connected with the bed course, installs the steel column again after the steel support installation finishes, has the non-used repeatedly of steel support, and with the steel volume great, the relatively poor problem of economic nature.
In view of this, aiming at the problems of difficult deepening manufacture, section installation precision control, steel bar binding in the column, concrete pouring quality control and the like of the large-section steel pipe column, the invention provides a simple and effective pile foundation outer-wrapped concrete core-pouring steel casing structure to improve the construction quality and the construction efficiency of steel square pipe column installation and concrete pouring during the construction of the steel pipe concrete column.
Disclosure of Invention
The invention aims to provide a large-section externally-wrapped stiffened thick plate square tube concrete column and a construction method, which are used for improving the construction quality and the construction efficiency of steel square tube column installation and concrete pouring during the construction of the steel tube concrete column and have better technical and economic benefits.
In order to achieve the purpose, the technical scheme provides a construction method of a large-section outer wrapped stiff thick plate square tube concrete column, which comprises the following steps: mounting a prestressed bracket; laying a bottom plate cushion reinforcing mesh, a support embedded part and an embedded U-shaped pull ring in the bottom plate cushion, and installing a prestressed support on the support embedded part after the bottom plate pouring and maintenance are completed; grouting a column base of the steel square tube; hoisting the steel square pipe column to fix the steel square pipe column on the prestressed support; erecting a welding construction platform; steel column reserved I-shaped steel is arranged on the outer side of the steel square tubular column, a welding operation platform is placed on the steel column reserved I-shaped steel, and the steel square tubular column is welded; erecting a steel pipe concrete column template; erecting a concrete-filled steel tube column template outside the square steel tube column, arranging reinforcing battens outside the concrete-filled steel tube column template, and arranging multiple layers of adjustable clamps outside the reinforcing battens at intervals; pouring concrete; the concrete column formwork is characterized in that a vibrating support is arranged on a civil engineering construction platform outside the concrete column formwork, the vibrating support is arranged outside the concrete column formwork and is higher than the concrete column formwork, a vibrating rod is arranged on the vibrating support after debugging is finished, the vibrating rod stretches into the position of a steel square pipe column in the concrete column formwork, and vibrating is finished after concrete pouring.
The scheme provides the large-section externally-wrapped stiff thick plate square tube concrete column constructed according to the construction method.
Compared with the prior art, the technical scheme has the following characteristics and beneficial effects:
1. the installation of steel square tubular column adopts prestressing force support system, can reduce substantially with the steel volume, can improve the bearing capacity of support simultaneously, has guaranteed the construction quality of steel column installation.
2. The concrete filled steel tubular column formwork adopts adjustable clamp spare template reinforcement system, and the template outside sets up the channel-section steel and consolidates, and the template outside sets up the cuff and evenly lays the split screw, and adjustable clamp spare can be applicable to the concrete filled steel tubular column template of certain limit internal cross section width fixed, and repetitious usage has better economic benefits.
3. Adopt operation platform during the steel column welding, adopt the wireless measurement and control technique of temperature during concrete placement, concrete placement adopts the fixed movable support construction of vibrating rod, and whole construction effect is better.
Drawings
FIG. 1 is a schematic view of the prestressed support structure of the present invention;
FIG. 2 is a column shoe bottom plate structure view;
FIG. 3 is a schematic view of a mud jacking funnel;
FIG. 4 is a three-dimensional structure diagram of the reinforcing template combining an integrated U-shaped hoop and an adjustable hoop;
FIG. 5 is a three-dimensional schematic view of an adjustable clamp;
FIG. 6 is a schematic view of a unitary U-shaped hoop structure;
FIG. 7 is a schematic plan view of the reinforcing form with the integrated U-shaped band and the adjustable band;
FIG. 8 is a column hoop and split screw combined reinforced form
FIG. 9 is a schematic view of a welding operation platform;
FIG. 10 is a schematic structural view of a civil engineering operation platform;
fig. 11 is a structural schematic view of the vibrating bracket.
Wherein: 1. the steel square pipe column 2, the column foot bottom plate 3, the prestressed anchor device 4, the perforated sealing plate 5, the prestressed support 6, the prestressed beam 7, the inclined strut 8, the cross bar 9, the support steel pipe column 10, the self-compacting concrete 11, the support embedded part 12, the bottom plate cushion reinforcing mesh 13, the bottom plate cushion 14, the prestressed clamp 15, the grouting hole 16, the grouting hopper 17, the steel pipe concrete column template 18, the reinforced wood square 19, the adjustable hoop 20, the fastening inclined iron 21, the integral U-shaped hoop 22, the hoop adjusting notch 23, the U-shaped hoop fixing screw 24, the first fixing nut 25, the straight threaded sleeve 26, the counter-pulling screw 27, the buckle 28, the square steel pipe column hoop 29, the square steel pipe penetrating screw 30, the steel channel back ridge 31, the inner side temperature sensor 32, the outer side temperature sensor 33, the support pull ring 34, the cable wind rope 35, the embedded U-shaped pull ring 36, the steel pipe column 37, the reserved I-steel 38, the welding platform reserved I-steel bar 39, the fixing screw 40, the second fixing nut 41, the welding operation platform 42, the vibration support 43, the vibration support construction control support 46, the vibration control support 46, the horizontal vibration control base, and the vibration control base 46.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
The scheme provides a large-section outer-wrapped stiff thick plate square pipe concrete column and a construction method, the large-section outer-wrapped stiff thick plate square pipe concrete column comprises a steel square pipe column 1, a stress support 5, a mud jacking funnel 16, a steel pipe concrete column 36, an adjustable clamp 19, a temperature sensor, a vibrating rod 46, an auxiliary horizontal moving crossbeam 47 and the like, a prestress support system is adopted for mounting the steel square pipe column 1, the mud jacking funnel is adopted for grouting of column feet of the steel square pipe column 1, an adjustable clamp member template reinforcing system is adopted for supporting a mold of the steel pipe concrete column 36, if the section of the column is large, a channel steel back edge is arranged on the outer side of the template for reinforcing, a hoop is arranged on the outer side of the steel pipe concrete column template, counter-pulling screw rods are uniformly distributed, an operation platform is adopted during welding of a steel column, a temperature wireless measurement and control technology is adopted during pouring of concrete, and the vibrating rod is adopted for fixing and moving support construction.
As shown in fig. 1, which is a schematic structural diagram of a prestressed support built outside a steel square pipe column 1, a bottom plate cushion reinforcing mesh 12, a support embedded part 11 and an embedded U-shaped pull ring 35 are arranged in a bottom plate cushion 13. The prestress support 5 is erected on the bottom plate cushion layer 13, specifically, the prestress support 5 is formed by splicing support steel pipe upright posts 9 and support cross beams 50, and the support cross beams 50 and the support steel pipe upright posts 9 form a door-shaped structure. The steel square pipe column 1 is placed on the bracket beam 50 of the prestressed bracket 5.
The support steel tube upright post 9 arranged on the bottom plate cushion layer 13 is arranged on the support embedded part 11, the prestressed tendons 6 and the self-compacting concrete 10 are filled in the support steel tube upright post 9, the support cross beam 50 is arranged at the top of the support steel tube upright post 9, the grout pressing hole and the prestressed anchorage device 3 are arranged on the top surface of the support cross beam 50, the prestressed tendons 6 and the self-compacting concrete 10 are filled in the support cross beam 50, the prestressed anchorage devices 3 are arranged at two ends of the support cross beam 50, the support pull ring 33 is arranged at the top of the support steel tube upright post 9, the cable wind rope 34 is arranged on the support pull ring 33, and the other end of the cable wind rope 34 is fixed on the embedded pull ring 35.
Specifically, a bottom plate cushion reinforcing mesh 12 is laid in a bottom plate cushion 13 in parallel, at least two support embedded parts 11 are arranged on the bottom plate cushion 13 at intervals, and the embedded U-shaped pull rings 35 are arranged on the outer sides of the support embedded parts 11 at intervals and are arranged at intervals of the support embedded parts 11. At least two support steel pipe upright posts 9 are respectively and vertically arranged on the support embedded parts 11 arranged at intervals, the support steel pipe upright posts 9 are connected with the embedded pull rings 35 through cable ropes 34, one ends of the cable ropes 34 are connected with the support pull rings 33, and the other ends of the cable ropes are connected with the support steel pipe upright posts 9. The tops of at least two support steel pipe upright posts 9 are tiled to be provided with support cross beams 50. The bracing 7 bracing is arranged between two support steel pipe stands 9, and horizontal pole 8 transversely sets up between support steel pipe stand 9, and foraminiferous shrouding 4 is arranged in between the top of two support steel pipe stands 9.
The column foot bottom plate 2 of the steel square column 1 is flatly laid on the support cross beam 50. As shown in fig. 2 and 3, the column base plate 2 is disposed on the prestressed support 5, the column base plate 2 is provided with grouting holes 15, and the grouting funnel 16 is disposed on the grouting holes 15 of the column base plate 2. In some embodiments, the grouting holes 15 are respectively disposed at four corners and a central position of the column base plate 2.
The structure of the integrated U-band and adjustable band combination reinforcement form is shown in fig. 4-7. Concrete filled steel tube post template 17 wraps in the 1 outside of steel square tubular column, and the concrete filled steel tube post template 17 outside sets up consolidates square timber 18, and concrete filled steel tube post template 17 sets up one adjustable clamp 19 every 1 meter, sets up fastening wedge 20 in clamp regulation notch 22 after 19 amalgamations of every two adjustable clamps, and the template four corners all sets up integral U type hoop 21 between 19 adjustable clamps of twice, and integral U type hoop 21 is fixed with U type hoop fixing screw 23 and first fixing nut 4.
Specifically, concrete filled steel tube column template 17's cross section is the rectangle structure, and the concrete filled steel tube column template 17 of every side sets up the reinforcement square timber 18 of perpendicular setting outward, and the reinforcement square timber 18 outside is equipped with at least one adjustable clamp 19, adjustable clamp 19 sets up along concrete filled steel tube column template 17's longitudinal distribution. The adjustable clamp 19 on each layer is formed by splicing a plurality of adjustable clamps 19 arranged in different directions, a clamp adjusting notch 22 is formed in the side of each adjustable clamp 19, and a fastening wedge 20 arranged on the side of each adjustable clamp 19 is arranged in the clamp adjusting notch 22 so as to realize the splicing of the two adjustable clamps 19. The side of the integral U-shaped hoop 21 is provided with a hole, and a U-shaped hoop fixing screw 23 passes through the hole of the integral U-shaped hoop 21 and then is fixed by a first fixing nut 4.
As shown in fig. 8, a channel steel back edge 30 is arranged on a concrete filled steel tube column formwork 17, an outside temperature sensor 32 is arranged on the channel steel back edge 30, a straight thread sleeve 25 is arranged on a steel square tube column 1, a counter-pull screw 26 is arranged on the straight thread sleeve 25, the other side of the counter-pull screw 26 is fixed on a square steel tube column hoop 28 on the outside by a buckle 27, and a square steel tube penetrating screw 29 is arranged in the square steel tube column hoop 28. Specifically, the channel steel back edge 30 is arranged on the back side of the steel pipe concrete column template 17 relative to the steel square pipe column 1, and the other side of the channel steel back edge 30 is connected with the square steel pipe column hoop 28, so that the square steel pipe column hoop 28 surrounds the outer side of the steel pipe concrete column template 17.
As shown in fig. 9, a steel column reserved i-steel 37 is arranged on the outer side of the steel square pipe column 1, a welding platform reserved i-steel 38 is arranged at the bottom of the welding construction platform 41, and a fixing screw 39 is arranged between the steel column reserved i-steel 37 and the welding platform reserved i-steel 38 for fixation. In other words, the welding construction platform 41 is erected on the steel square pipe column 1 and connected with the reserved steel column i-beam 37 outside the steel square pipe column 1.
As shown in fig. 10, 11 steel pipe concrete column form 17 outside sets up civil engineering construction platform 42, set up steel square tubular column 1 in the concrete column 36, set up vibration support 51 on the civil engineering construction platform 42, vibration support base 44 is set up to vibration support 51 bottom, set up vibration support control motor 43 and lifter 45 on the vibration support base 44, lifter 45 top surface sets up supplementary horizontal migration crossbeam 47, set up mobilizable vibrating rod control ring 48 on the supplementary horizontal migration crossbeam 47, set up vibrating rod 46 in the vibrating rod control ring 48.
The vibrating bracket 51 is arranged on the outer side of the concrete filled steel tube column template 17 and is higher than the concrete filled steel tube column template 17. The vibrating bracket 51 comprises lifting rods 45 arranged on two sides and capable of lifting, and an auxiliary horizontal moving beam 47 connecting the two lifting rods 45, wherein a vibrating rod 46 hung on the auxiliary horizontal moving beam 47 is arranged in the position of the steel square pipe column 1.
The invention also provides a construction method of the large-section concrete column wrapped with the stiffened thick plate square tube, which comprises the following steps:
mounting a prestressed bracket; lay 12 support built-in fittings 11 of bottom plate bed course reinforcing bar net in the bottom plate bed course 13, pre-buried U type pull ring 35, install prestressing force support 5 on support built-in fittings 11 after the bottom plate pouring maintenance is accomplished, it is concrete, install prestressed tendons 6 on the prestressing force anchor clamps 14 of support built-in fittings 11, erection support steel pipe stand 9 afterwards, support crossbeam 50, horizontal pole 8, bracing 7, pour into self-compaction concrete 10 behind the stretch-draw prestressed tendons 6, seal the anchor with prestressed anchorage utensil 3 and foraminiferous shrouding 4 afterwards, foraminiferous shrouding 4 is arranged in between the top of two support steel pipe stands 9 in order to constitute prestressing force support 5. The structure of the prestressed support 5 is as described above and will not be redundantly described here.
Grouting a steel square pipe column base; and hoisting the steel square tubular column 1, so that the steel square tubular column 1 is fixed on the prestress support 5. Specifically, a column base bottom plate 2 of the steel square tubular column 1 is arranged on a prestressed support 5, a grouting funnel 16 is placed in a grouting hole 15 in the column base bottom plate 2, and grouting is performed while the grouting funnel 16 is lifted. The construction of the column shoe bottom plate 2 is as described above and will not be redundantly described here.
Erecting a welding construction platform; the outer side of the steel square pipe column 1 is provided with a steel column reserved I-steel 37, a welding operation platform 41 is placed on the steel column reserved I-steel 37, the welding operation platform 41 and the steel column reserved I-steel 37 are connected through a fixing screw rod 39 and a second fixing nut 40, and then the steel square pipe column 1 is welded.
Erecting a steel pipe concrete column template; a concrete-filled steel tube column template 17 is erected on the outer side of the square steel tube column 1, a reinforcing batten 18 is arranged on the outer side of the template, and multiple layers of adjustable hoops 19 are arranged on the outer side of the reinforcing batten 18 at intervals.
Specifically, the adjustable hoops 19 on the same layer are fixed through the fastening wedges 20 after being installed, the integral U-shaped hoops 21 are respectively arranged at four corners of the middle position of each adjustable hoop 19, and the integral U-shaped hoops 21 are fixed through the U-shaped hoop fixing screw rods 23 and the first fixing screw caps 24. The specific structure of the adjustable clamp 19 is as described above and will not be described redundantly here.
Erecting steel pipe concrete column channel steel back ridges; if the steel pipe concrete column 36 cross-section that needs to pour is great, then set up channel-section steel back arris 30 and reinforcement flitch 18 in the steel pipe concrete column template 17 outside, and install square tubular column hoop 28 in the channel-section steel back arris 30 outside, install in the square tubular column hoop 28 and to drawing screw rod 26, steel square tubular column 1 outside welding straight thread sleeve 25, and install on straight thread sleeve 25 and to drawing screw rod 26, it passes square tubular column hoop 28 and fixed to draw screw rod 26, specifically, be fixed in the square tubular column hoop 28 outside with buckle 27, simultaneously, inboard temperature sensor 31 and outside temperature sensor 32 are arranged respectively to the inside and outside of steel square tubular column 1.
Pouring concrete; installing vibration support 51 on the civil engineering construction platform 42 outside concrete filled steel tube column template 17, vibration support 51 arranges the outside of concrete filled steel tube column template 17 in, and is higher than the setting of concrete filled steel tube column template 17, installs the vibrating rod 46 on vibration support 51 after debugging, and vibrating rod 46 stretches into the position of steel square tubular column 1 in concrete filled steel tube column template 17, accomplishes the vibration after the concreting. Specifically, the vibrating support control motor 43 is started, and the lifting rod 45 is controlled to lift the vibrating rod 46 to complete vibrating by adjusting the horizontal movement of the vibrating rod control ring 48.
In a second aspect, the scheme provides the large-section externally-wrapped stiff thick plate square tube concrete column which is obtained by construction of the large-section externally-wrapped stiff thick plate square tube concrete column construction method.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (10)
1. A construction method of a large-section outer-wrapped stiff thick plate square tube concrete column is characterized by comprising the following steps:
mounting a prestressed bracket; a bottom plate cushion reinforcing mesh (12), a support embedded part (11) and an embedded U-shaped pull ring (35) are laid in the bottom plate cushion (13), and a prestressed support (5) is arranged on the support embedded part (11) after the bottom plate is poured and maintained;
grouting a steel square pipe column base; hoisting the steel square tubular column (1) to fix the steel square tubular column (1) on the prestressed support (5);
erecting a welding construction platform; a steel column reserved I-shaped steel (37) is arranged on the outer side of the steel square tubular column (1), a welding operation platform (41) is placed on the steel column reserved I-shaped steel (37), and the steel square tubular column (1) is welded;
erecting a steel pipe concrete column template; a concrete-filled steel tube column template (17) is erected on the outer side of the square steel tube column (1), reinforced battens (18) are arranged on the outer side of the concrete-filled steel tube column template (17), and multiple layers of adjustable clamps (19) are arranged on the outer side of the reinforced battens (18) at intervals;
pouring concrete; install support (51) that vibrates on civil engineering construction platform (42) in the concrete filled steel tube column template (17) outside, the outside of concrete filled steel tube column template (17) is arranged in to support (51) that vibrates, and is higher than concrete filled steel tube column template (17) setting, installs vibrating rod (46) on support (51) that vibrates after debugging well, and vibrating rod (46) stretch into steel square tubular column (1) place in concrete filled steel tube column template (17), accomplishes the vibration after the concreting.
2. The construction method of the large-section externally-wrapped stiffness thick plate square tube concrete column according to claim 1, wherein if the section of the steel tube concrete column (36) to be poured is large, a channel steel back rib (30) is arranged on the outer side of a steel tube concrete column template (17), a square tube column hoop (28) is arranged on the outer side of the channel steel back rib (30), a straight thread sleeve (25) is welded on the outer side of the steel square tube column (1), a counter-pulling screw rod (26) is arranged on the straight thread sleeve (25), and the counter-pulling screw rod (26) penetrates through the square tube column hoop (28) and is fixed.
3. The construction method of a large-section externally wrapped stiffness thick plate square tube concrete column according to claim 1, wherein an inner side temperature sensor (31) and an outer side temperature sensor (32) are respectively arranged on the inner side and the outer side of the steel square tube column (1).
4. The construction method of the large-section externally-wrapped stiffened thick plate square tube concrete column according to claim 1, characterized in that a prestressed tendon (6) is installed on a prestressed clamp (14) of a support embedded part (11), then a support steel tube upright post (9), a support cross beam (50), a cross rod (8) and an inclined strut (7) are installed, self-compacting concrete (10) is poured after the prestressed tendon (6) is tensioned, then an anchor is sealed by a prestressed anchor (3) and a sealing plate with holes (4), and the sealing plate with holes (4) is arranged between the tops of the two support steel tube upright posts (9) to form a prestressed support (5).
5. The construction method of the large-section externally-wrapped steel-reinforced thick-plate square-tube concrete column according to claim 4, wherein a support pull ring (33) is arranged at the top of the support steel tube column (9), a cable rope (34) is arranged on the support pull ring (33), and the other end of the cable rope (34) is fixed on an embedded U-shaped pull ring (35).
6. The construction method of the large-section externally-wrapped stiffness thick plate square tube concrete column according to claim 1, characterized in that a column base bottom plate (2) of the steel square tube column (1) is placed on a prestressed bracket (5), a grouting funnel (16) is placed in a grouting hole (15) on the column base bottom plate (2), and then grouting is carried out while the grouting funnel (16) is lifted.
7. The construction method of the large-section externally-wrapped stiffness thick plate square tube concrete column according to claim 1, wherein adjustable hoops (19) on the same layer are fixed through fastening wedges (20) after being installed, four corners of the middle of two adjustable hoops (19) are respectively provided with an integral U-shaped hoop (21), and the integral U-shaped hoops (21) are fixed through U-shaped hoop fixing screws (23) and first fixing nuts (24).
8. The construction method of the large-section externally-wrapped strong slab square tube concrete column as claimed in claim 1, wherein the side of the adjustable clamp (19) is provided with a clamp adjusting notch (22), and the fastening wedge (20) arranged on the side of the adjustable clamp (19) is arranged in the clamp adjusting notch (22).
9. The construction method of the large-section externally-wrapped rigid thick plate square tube concrete column according to claim 1, wherein the vibrating support (51) comprises lifting rods (45) arranged on two sides and an auxiliary horizontal moving beam (47) connecting the two lifting rods (45), a movable vibrating rod control ring (48) is arranged on the auxiliary horizontal moving beam (47), a vibrating rod (46) is arranged in the vibrating rod control ring (48), the vibrating rod (46) is arranged in the position of the steel square tube column (1), and the vibrating rod (46) is lifted by controlling the lifting rods (45) to complete vibrating by adjusting the horizontal movement of the vibrating rod control ring (48).
10. The large-section externally-wrapped stiffened thick plate square tube concrete column is characterized by being obtained by construction according to the construction method of the large-section externally-wrapped stiffened thick plate square tube concrete column claimed in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111578979.7A CN114278012B (en) | 2021-12-22 | 2021-12-22 | Large-section concrete column wrapped with stiffened thick plate square tube and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111578979.7A CN114278012B (en) | 2021-12-22 | 2021-12-22 | Large-section concrete column wrapped with stiffened thick plate square tube and construction method |
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| CN114278012A CN114278012A (en) | 2022-04-05 |
| CN114278012B true CN114278012B (en) | 2022-12-13 |
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| CN101397854A (en) * | 2008-01-23 | 2009-04-01 | 贵州大学 | Enveloping prestressing force fastening type steel tube concrete column and reinforcement method |
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| CN209308406U (en) * | 2018-07-12 | 2019-08-27 | 中建四局第一建筑工程有限公司 | A kind of reinforcement of concrete post system |
| CN112282354A (en) * | 2020-10-19 | 2021-01-29 | 中国建筑第八工程局有限公司 | Construction method of square and round buckling column hoop reinforcement system |
| CN113585805A (en) * | 2021-08-17 | 2021-11-02 | 上海市政工程设计研究总院（集团）有限公司 | Connecting structure of layered steel column base |
| CN113700221A (en) * | 2021-08-11 | 2021-11-26 | 河北省建筑工程质量检测中心有限公司 | Prefabricated prestressed steel pipe concrete column and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113389B (en) * | 2015-09-18 | 2017-01-25 | 河海大学 | Assembled type bridge pier column member with steel-concrete composite structure |
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2021
- 2021-12-22 CN CN202111578979.7A patent/CN114278012B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397854A (en) * | 2008-01-23 | 2009-04-01 | 贵州大学 | Enveloping prestressing force fastening type steel tube concrete column and reinforcement method |
| CN207079963U (en) * | 2017-08-04 | 2018-03-09 | 上海建工七建集团有限公司 | A kind of supporting construction of large span heavy in section stiff beam |
| CN209308406U (en) * | 2018-07-12 | 2019-08-27 | 中建四局第一建筑工程有限公司 | A kind of reinforcement of concrete post system |
| CN112282354A (en) * | 2020-10-19 | 2021-01-29 | 中国建筑第八工程局有限公司 | Construction method of square and round buckling column hoop reinforcement system |
| CN113700221A (en) * | 2021-08-11 | 2021-11-26 | 河北省建筑工程质量检测中心有限公司 | Prefabricated prestressed steel pipe concrete column and construction method |
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| CN114278012A (en) | 2022-04-05 |
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