CN104674986B - Multi-cavity concrete-filled steel tubular wall with internal pre-machined semi-continuous reinforcement cage and construction method - Google Patents
Multi-cavity concrete-filled steel tubular wall with internal pre-machined semi-continuous reinforcement cage and construction method Download PDFInfo
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Abstract
The invention relates to a multi-cavity concrete-filled steel tubular wall with internal pre-machined semi-continuous reinforcement cages and a construction method. The multi-cavity concrete-filled steel tubular wall comprises a steel frame and a continuous reinforcement cage; discontinuous reinforcement cages are prefabricated in the steel frame; the length-to-width ratio of the steel frame is more than or equal to 3; the steel frame in which the discontinuous reinforcement cages are prefabricated is a whole consisting of the discontinuous reinforcement cages, a giant steel frame and tying parts; the giant steel frame is internally divided into a plurality of cavities by transverse vertical partition plates; transverse partition plates are arranged at intervals along the height direction in each cavity; the discontinuous reinforcement cages are positioned between the adjacent transverse partition plates, and are integrally connected with the inner wall of the giant steel frame through the tying parts; the continuous reinforcement cage is arranged in a full-length manner along the lengths of the cavities; holes through which the continuous reinforcement cage penetrate are formed in the middle parts of the transverse partition plates. According to the multi-cavity concrete-filled steel tubular wall and the construction method, the technical problems of weak compressive strength and shear strength and poor fire resistance of an ultra-long giant steel plate wall structure are solved, and the multi-cavity concrete-filled steel tubular wall and the construction method can be widely applied to a super high-rise large-span structure.
Description
Technical field
The present invention relates to a kind of steel plate shear force wall and its construction method, the semicontinuous steel reinforcement cage of particularly a kind of built-in preprocessing
Multi-cavity steel tube concrete wall and construction method.
Background technology
Constantly increase the requirement with anti-seismic technology with City Building scale, the application of steel plate shear force wall is more, often
Steel plate shear force wall is outsourcing steel framework, the mode of interior casting concrete, but this structural form has some problems, such as mixed
Solidifying soil there is a problem of shrinking and creeping, and especially to large scale steel plate shear force wall, the larger concrete of internal volume is in contraction
Afterwards, there is microcrack and steel plate between, so may lead to concrete and steel plate cannot stress simultaneously, reach predetermined stress effect
Really.
For solving the above problems, a kind of heavy in section steel plate shear force wall also occurs as shown in figure 1, its structural form includes outsourcing
The steel framework that steel plate 1 encloses, has poured concrete 2 in steel framework, this version enhances to a certain extent and limits coagulation
The contraction of soil, increased the globality of outer steel framework and inner concrete, it is larger-size that this version is applied to shear wall cross section
Situation.
, in specific implementation process, there are the following problems for said structure：From structure stress angle, said structure form due to
The unconfined reinforcing bar of large-area concrete, under outside load action, wherein radical first destroys, as shown in Fig. 2 can from figure
To see under external load F effect, the curvature at deformation curve 1 middle part is very big, bulging phenomenon.Why not that is to big
The concrete of area also increases lateral confinement, improves its comprcssive strength, and it has its source in, heavy in section steel plate shear force wall reinforcing bar portion
The construction dividing needs to enter in steel framework, and in workman's entrance steel framework, construction space is narrow and small, and the activity duration is long, and job site is often
It is easy to have an accident for the cross-operation of many work posts.Therefore, existing heavy in section steel plate shear force wall Discrete Distribution continuous
Reinforcing bar applies lateral confinement and cannot implement at the scene.
Content of the invention
It is an object of the invention to provide a kind of multi-cavity steel tube concrete wall of the semicontinuous steel reinforcement cage of built-in preprocessing and construction
Method, technical problem to be solved is the comprcssive strength strengthening existing heavy in section steel plate shear force wall, improves its bearing capacity and drops
Its difficulty of construction low, improves efficiency of construction and the technical problem of working security.
For achieving the above object, the present invention adopts the following technical scheme that：
A kind of multi-cavity steel tube concrete wall of the semicontinuous steel reinforcement cage of built-in preprocessing, is prefabricated with disconnected including concrete, inside
The length-width ratio of continuous steel reinforcement cage is more than or equal to 3 steel framework and continuity reinforcement(bar) cage；The steel framework that described inside is prefabricated with interrupted steel reinforcement cage is
The discontinuously entirety of steel reinforcement cage, huge steel framework and tension member composition；Described Huge Steel Open inframe portion is separated into some by horizontal vertical clapboard
Individual cavity, is arranged at intervals with transverse partition panel along short transverse in each cavity, described interrupted steel reinforcement cage divides positioned at adjacent transverse
Between dividing plate, it is connected integral by tension member with Huge Steel Open inframe wall；Described continuity reinforcement(bar) cage sets along cavity length is elongated
Put, in the middle part of described transverse partition panel, have the hole passing through for continuity reinforcement(bar) cage.
Further, the single piece of described transverse partition panel center hole or radial distribution centered on steel framework center
Multiple separate piece.
Further, described encased steel plate or/and Horizontal vertical baffle surface are welded with peg.
Further, described transverse partition panel arranges at least one of which in same position.
Further, described transverse partition panel is 0.2m～30m along the setting space in described housing depth direction.
Further, described tension member be straight bar dowel, the bar dowel with elbow for the end, steel cushion block or clamp.
A kind of construction method of the above-mentioned multi-cavity steel tube concrete wall of the semicontinuous steel reinforcement cage of built-in preprocessing, its step is such as
Under：
Step one, encased steel plate, horizontal vertical clapboard, laterally separated plate weld are formed multiple huge steel framework modules；
Step 2, big stirrup, non-elongated longitudinal reinforcement welding are formed interrupted steel reinforcement cage；Simultaneously by elongated longitudinal steel
Muscle and the welding of little stirrup form continuity reinforcement(bar) cage；
Step 3, interrupted steel reinforcement cage is put into huge steel framework module, and forms entirety with the welding of huge steel framework module inwall；
Step 4, forms the multiple huge steel framework module standard section of different length specification；
Step 5, multiple huge steel framework module standard sections and continuity reinforcement(bar) cage are transported to job site, and at the scene will
Huge steel framework module standard section pieces together Multi-cavity steel frame standard knot, and then Multi-cavity steel frame standard knot continued access becomes whole shear wall；
Step 6, continuity reinforcement(bar) cage is hung in the hollow space of shear wall；
Step 7, casting concrete, make concrete, continuity reinforcement(bar) cage, interrupted steel reinforcement cage and cavity form entirety.
Wherein, described interrupted or continuity reinforcement(bar) cage welding also can be welded after Multi-cavity steel frame standard knot is transported to scene,
Now accordingly omit continuity reinforcement(bar) cage and transport link.
Wherein, in described step 3, when interrupted steel reinforcement cage is welded with cavity inner wall, it is spaced welding in cavity inner wall in advance
Tension member.
Wherein, in described step one, encased steel plate and horizontal vertical clapboard, laterally separated plate weld are formed multiple Huge Steel Opens
During frame module, in advance in surface of steel plate weld stud.
Compared with prior art the invention has the characteristics that and beneficial effect：
The present invention proposes a kind of new steel plate shear wall structure form, and this structure is due to by huge steel framework and interrupted
Steel reinforcement cage setting is integrated, and has both met and has applied lateral confinement to interrupted longitudinal reinforcement, improves the huge shear wall of steel framework concrete and resists
Compressive Strength and shearing strength.Such as under axle power effect, the discontinuous reinforcing bar of steel plate shear force wall waist plays effect of contraction, improves
Axially compressed behavior.If under shearing action, multi-cavity steel tube concrete shear wall is cut for steel plate, armored concrete part
Also can be cut.It is plain concrete inside former encased steel plate shear wall, and there is microcrack, shearing is far smaller than armored concrete
Shear-carrying capacity.
Meanwhile, construction, the efficiency of construction of raising in steel framework or need not be reduced, reduce difficulty of construction, the accident of minimizing
Incidence rate.
Enable steel framework and concrete by applying lateral confinement to interrupted longitudinal reinforcement in construction and serviceability limit stage
It is in close contact, gives full play to the effect of contraction to concrete for the steel framework, be substantially reduced that concrete shrinkage brings to bearing capacity is unfavorable
Impact.
The present invention proposes a kind of new steel plate shear wall structure form and has good anti-seismic performance.First, multi-cavity
Steel framework forms multi-cavity space constraint to concrete, and meanwhile, conventional steel plates shear wall destroys to be mainly and occurs at the middle part of shear wall
Region, this novel shear wall indulges, by non-interconnected, the stirrup that muscle is arranged at middle part, plays the effect strengthening middle part concrete constraint,
The bearing capacity of antidetonation and the ductility of steel plate shear force wall can be improved further.
The present invention proposes a kind of its internal steel reinforcement cage of new steel plate shear force wall and includes continuity reinforcement(bar) cage and interrupted
Steel reinforcement cage, interrupted steel reinforcement cage constitutes the semi-connected armored concrete part of built-in reinforcing bar together with concrete, in a fire,
Encased steel plate lost efficacy first, but built-in armored concrete part constitutes reinforced concrete shear wall, can continue to undertake fire
Load in calamity, thus effectively improve the fire resistance property of structure.
In work progress, the construction method non-interconnected that the present invention provides is indulged muscle and can be become steel reinforcement cage with preprocessing with stirrup,
Welded together with steel framework by tension member, transport directly to job site, connection reinforcing bar and stirrup can also preprocessing be steel
Muscle cage, steel plate is also preprocessing, can effectively improve construction quality, shortens the engineering time.
The composite can be widely applied in Super High longspan structure.
Brief description
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 existing heavy in section steel plate shear force wall sectional side elevation.
Fig. 2 is deformation schematic diagram under outer load action for the existing heavy in section steel plate shear force wall.
Fig. 3 is the application heavy in section steel plate shear force wall sectional side elevation.
Fig. 4 is the A-A sectional elevation of Fig. 3.
Fig. 5 is the B-B sectional elevation of Fig. 3.
Fig. 6 is construction method flow chart.
Fig. 7 is the stress deformation schematic diagram of the multi-cavity steel tube concrete wall of the semicontinuous steel reinforcement cage of built-in preprocessing.
Reference：The elongated longitudinal reinforcement of 1- encased steel plate, 2- lateral partitions, the little stirrup of 3-, 4-, the big hoop of 5-
The non-elongated longitudinal reinforcement of muscle, 6-, 7- concrete, 8- tension member, the horizontal vertical clapboard of 9-, the continuous longitudinal reinforcement of 11-,
12- deformation curve one, 13- deformation curve two.
Specific embodiment
For describing technical scheme in detail, provide specific embodiment below in conjunction with the accompanying drawings.
Embodiment one, referring to Fig. 3, Fig. 4 and Fig. 5, is a kind of multi-cavity steel tube concrete of the semicontinuous steel reinforcement cage of built-in preprocessing
Wall, including inside be prefabricated with interrupted steel reinforcement cage length-width ratio be more than or equal to 3 steel framework and continuity reinforcement(bar) cage；Described inside is prefabricated with
The entirety that discontinuously steel framework of steel reinforcement cage is made up of interrupted steel reinforcement cage, huge steel framework and tension member 8；Described Huge Steel Open inframe portion is horizontal
It is separated into several cavitys to vertical clapboard 9, in each cavity, be arranged at intervals with transverse partition panel 2 along short transverse, described interrupted
Steel reinforcement cage is located between adjacent transverse demarcation strip 2, and it is connected integral by tension member 8 with Huge Steel Open inframe wall；Described continuous
Steel reinforcement cage, along the elongated setting of cavity length, has, in the middle part of described transverse partition panel 2, the hole passing through for continuity reinforcement(bar) cage.Described core
Steel reinforcement cage is identical with interrupted steel reinforcement cage central shaft, and described concreting is in cavity and described continuity reinforcement(bar) cage and described continuous
Gap between steel reinforcement cage and described interrupted steel reinforcement cage.
Further, described continuity reinforcement(bar) cage is formed by connecting by elongated longitudinal reinforcement 4, little stirrup 5.
Further, described interrupted steel reinforcement cage is formed by connecting by non-elongated longitudinal reinforcement 6 and big stirrup 3.
Described big stirrup 5, little stirrup 3 be two kinds of stirrup diameters comparatively, the diameter of big stirrup 5 or inscribed circle straight
Footpath, more than the diameter of little stirrup 3 or the diameter of inscribed circle.
Further, described big stirrup 5 and little stirrup 3 are circular stirrups.
Further, the transverse section of described steel framework and cavity is square.
Described transverse partition panel 2 arranges at least one of which in same position, and the present embodiment is two-layer, described transverse partition panel 2
Setting space along described housing depth direction is 0.2m～30m.Common set location is in floor position.
The single piece of described transverse partition panel 2 center hole, in other embodiments, described transverse partition panel 2 is acceptable
It is multiple separate piece of radial distribution centered on tubular structure center.
In order to increase the cohesive force between concrete and described encased steel plate 1 or/and horizontal vertical clapboard 9, described Covered with Angles
Plate 1 or/and horizontal vertical clapboard 9 surface soldered have peg.
Described tension member 8 is straight bar dowel, the bar dowel with elbow for the end, steel cushion block or clamp.
In order to the technical scheme of the application and technique effect produced by the technical scheme of prior art are described, by the application
The multi-cavity steel tube concrete wall of the semicontinuous steel reinforcement cage of built-in preprocessing with existing heavy in section steel plate shear force wall in identical outer lotus
The deformation that load acts under F carries out contrast and refers to Fig. 2 and Fig. 7, as can be seen that when Huge Steel Open inframe portion is pre- from schematic diagram
It is formed with interrupted steel reinforcement cage, the non-elongated longitudinal reinforcement 6 in interrupted steel reinforcement cage applies lateral confinement by big stirrup 3, and passes through
Tension member 8 be connected with the inwall of huge steel framework integral after, deformation curve in the middle part of steel plate wall 2 13 is substantially than deformation curve one
12 degree of crook reduces, thus proving the applying of lateral confinement, the comprcssive strength of huge steel plate wall that effectively improves and prolonging
Property.
The construction method of the above-mentioned multi-cavity steel tube concrete wall of the semicontinuous steel reinforcement cage of built-in preprocessing, referring to Fig. 6, its step
Suddenly as follows：
Step one, encased steel plate 1 and horizontal vertical clapboard 9, transverse partition panel 2 are welded the multiple huge steel framework modules of formation；
Step 2, big stirrup 5, non-elongated longitudinal reinforcement 6 are welded the interrupted steel reinforcement cage of formation；Simultaneously by elongated longitudinal direction
Reinforcing bar 4 and little stirrup 3 welding form continuity reinforcement(bar) cage；
Step 3, interrupted steel reinforcement cage is put into huge steel framework module, and forms entirety with the welding of huge steel framework module inwall；
Step 4, forms the multiple huge steel framework module standard section of different length specification；
Step 5, multiple huge steel framework module standard sections and continuity reinforcement(bar) cage are transported to job site, and at the scene will
Huge steel framework module standard section pieces together Multi-cavity steel frame standard knot, and then Multi-cavity steel frame standard knot continued access becomes whole shear wall；
Step 6, continuity reinforcement(bar) cage is hung in the hollow space of shear wall；
Step 7, casting concrete, make concrete, continuity reinforcement(bar) cage, interrupted steel reinforcement cage and cavity form entirety.Pour mixed
The mode of solidifying soil is typically chosen in pump pressure type.
Because this method is applied to huge steel plate shear force wall, its section is typically all larger, and therefore aforesaid way is a kind of allusion quotation
Type mode, the less steel plate shear force wall for section, also can omit huge steel framework module standard section making link, directly be made as
Multi-cavity steel frame standard knot.
Wherein, the welding of described continuity reinforcement(bar) cage also can be welded after Multi-cavity steel frame standard knot is transported to scene, this phase
Continuity reinforcement(bar) cage should be omitted and transport link.
Wherein, in described step 3, when interrupted steel reinforcement cage is welded with cavity inner wall, it is spaced welding in cavity inner wall in advance
Tension member 8.
In the specific implementation, in described step one, encased steel plate 1 and horizontal vertical clapboard 9, transverse partition panel 2 are welded shape
When becoming multiple huge steel framework module, in advance in surface of steel plate weld stud.
Claims (10)
1. a kind of semicontinuous steel reinforcement cage of built-in preprocessing multi-cavity steel tube concrete wall it is characterised in that：Including concrete, inside
The length-width ratio being prefabricated with interrupted steel reinforcement cage is more than or equal to 3 steel framework and continuity reinforcement(bar) cage；Described inside is prefabricated with interrupted steel reinforcement cage
Steel framework be interrupted steel reinforcement cage, huge steel framework and tension member（8）The entirety of composition；Described Huge Steel Open inframe portion is by horizontal vertical clapboard
（9）It is separated into several cavitys, in each cavity, be arranged at intervals with transverse partition panel along short transverse（2）, described interrupted reinforcing bar
Cage is located at adjacent transverse demarcation strip（2）Between, it passes through tension member（8）It is connected integral with Huge Steel Open inframe wall；Described continuous
Steel reinforcement cage is along the elongated setting of cavity length, described transverse partition panel（2）There is the hole passing through for continuity reinforcement(bar) cage at middle part.
2. the semicontinuous steel reinforcement cage of built-in preprocessing according to claim 1 multi-cavity steel tube concrete wall it is characterised in that：
Described transverse partition panel（2）Centered on hole single piece or centered on steel framework center radial distribution multiple separate piece.
3. the semicontinuous steel reinforcement cage of built-in preprocessing according to claim 1 multi-cavity steel tube concrete wall it is characterised in that：
Encased steel plate（1）Or/and horizontal vertical clapboard（9）Surface soldered has peg.
4. the semicontinuous steel reinforcement cage of built-in preprocessing according to claim 3 multi-cavity steel tube concrete wall it is characterised in that：
Described transverse partition panel（2）In same position, at least one of which is set.
5. the semicontinuous steel reinforcement cage of built-in preprocessing according to claim 3 multi-cavity steel tube concrete wall it is characterised in that：
Described transverse partition panel（2）Setting space along described housing depth direction is 0.2m～30m.
6. the semicontinuous steel reinforcement cage of built-in preprocessing according to claim 1 multi-cavity steel tube concrete wall it is characterised in that：
Described tension member（8）For straight bar dowel, the bar dowel with elbow for the end, steel cushion block or clamp.
7. the multi-cavity steel tube concrete of the semicontinuous steel reinforcement cage of built-in preprocessing as described in a kind of any one as claim 1 to 6
The construction method of wall, its step is as follows：
Step one, by encased steel plate（1）, horizontal vertical clapboard（9）, transverse partition panel（2）Welding forms multiple huge steel framework modules；
Step 2, by big stirrup（5）, non-elongated longitudinal reinforcement（6）Welding forms interrupted steel reinforcement cage；Simultaneously by elongated longitudinal direction
Reinforcing bar（4）With little stirrup（3）Welding forms continuity reinforcement(bar) cage；
Step 3, interrupted steel reinforcement cage is put into huge steel framework module, and forms entirety with the welding of huge steel framework module inwall；
Step 4, forms the multiple huge steel framework module standard section of different length specification；
Step 5, multiple huge steel framework module standard sections and continuity reinforcement(bar) cage are transported to job site, and at the scene will be huge
Steel framework module standard section pieces together Multi-cavity steel frame standard knot, and then Multi-cavity steel frame standard knot continued access becomes whole shear wall；
Step 6, continuity reinforcement(bar) cage is hung in the hollow space of shear wall；
Step 7, casting concrete, make concrete, continuity reinforcement(bar) cage, interrupted steel reinforcement cage and cavity form entirety.
8. the construction method of the multi-cavity steel tube concrete wall of the semicontinuous steel reinforcement cage of built-in preprocessing according to claim 7,
It is characterized in that：Described interrupted or continuity reinforcement(bar) cage welding also can be welded after Multi-cavity steel frame standard knot is transported to scene, this
Shi Xiangying omits continuity reinforcement(bar) cage and transports link.
9. the construction method of the multi-cavity steel tube concrete wall of the semicontinuous steel reinforcement cage of built-in preprocessing according to claim 7,
It is characterized in that：In described step 3, when interrupted steel reinforcement cage is welded with cavity inner wall, draw in cavity inner wall interval welding in advance
Knot part（8）.
10. the construction method of the multi-cavity steel tube concrete wall of the semicontinuous steel reinforcement cage of built-in preprocessing according to claim 7,
It is characterized in that：In described step one, by encased steel plate（1）With horizontal vertical clapboard（9）, transverse partition panel（2）Welding forms many
During individual huge steel framework module, in advance in surface of steel plate weld stud.
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| CN105133793B (en) * | 2015-09-07 | 2017-12-29 | 姚攀峰 | The huge post of multi-cavity tube-in-tube armored concrete and construction method of space constraint |
| CN106013607A (en) * | 2016-05-20 | 2016-10-12 | 西安建筑科技大学 | Multi-cavity concrete-filled steel pipe combination column with stiffening ribs and manufacturing method |
| CN106639046A (en) * | 2016-12-30 | 2017-05-10 | 上海建工四建集团有限公司 | Entirely prefabricated monolayer steel plate-concrete composite shear wall and assembly method thereof |
| CN107237426B (en) * | 2017-06-15 | 2023-05-16 | 姚攀峰 | Multiple constraint reinforced concrete column type wall structure, structure system and construction method thereof |
| CN112282118B (en) * | 2020-10-16 | 2022-03-22 | 合力建设有限公司 | Residential system of steel pipe concrete close-packed column steel plate energy-consuming shear wall structure |
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