CN106869403A - The prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer - Google Patents
The prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer Download PDFInfo
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- CN106869403A CN106869403A CN201710239143.1A CN201710239143A CN106869403A CN 106869403 A CN106869403 A CN 106869403A CN 201710239143 A CN201710239143 A CN 201710239143A CN 106869403 A CN106869403 A CN 106869403A
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- girder
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
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Abstract
The invention discloses a kind of prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer, including some girders, some girders seamless matching successively, each girder includes square steel tube and pours concrete inside the square steel tube, and each girder is stretched into shear wall along the two ends on its own length direction.The prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer provided in an embodiment of the present invention, by the way of some girders successively seamless matching are set so that the span-depth radio of the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer of formation is the several times of single coupling beam;Additionally, forming girder by the way of the casting concrete inside square steel tube, it is possible to increase malformation ability, it is ensured that coupling beam has good ductile performance, it is to avoid coupling beam occurs brittle shear failure.Additionally, girder provided in an embodiment of the present invention is by the way of prefabricated components, can realize being assembled at the scene, with the advantage that speed of application is fast and construction quality is controllable.
Description
Technical field
The present invention relates to the technical field of structural engineering in civil engineering, and in particular to a kind of prefabricated square steel tube coagulation of multilayer
Native coupling beam.
Background technology
Coupling beam refers to the beam that wall limb and wall limb are connected in shear wall structure and frame shear wall structure, i.e. coupling beam refers to
The beam that two ends are planar connected with shear wall wall limb.In building structure, coupling beam is wall of High-building or Core Walls Structure knot
Important dissipative member in structure system is general to have the features such as span is small, section is big.
For highlight lines area structure, easily occur cutting the situation that pressure ratio transfinites using common reinforced concrete coupling beamses.
Therefore, in order to improve the anti-seismic performance of coupling beam, that improves coupling beam cuts pressure ratio limit value, generally configures right in reinforced concrete coupling beamses
Angle sleeper reinforcing bar, rhombus arrangement of reinforcement, diagonal diagonal reinforcement intersect diagonal reinforcement etc..Although above-mentioned these schemes can realize the company of raising
The effect of beam ductility, but, because above-mentioned these schemes need the diagonal sleeper reinforcing bar of additional configuration, rhombus arrangement of reinforcement etc., reinforcing bar is matched somebody with somebody
Put excessive, therefore material consumption is excessive and construction is inconvenient, is unfavorable for controlling construction cost.
The content of the invention
Present invention solves the technical problem that being to provide a kind of prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer, can effectively solve the problem that existing
Have the coupling beam in technology cut pressure ratio transfinite, the relatively low energy dissipation capacity of coupling beam and the problems such as inconvenient building structure construction.
In order to solve the above technical problems, the technical solution adopted by the present invention is:
There is provided a kind of multilayer prefabricated Concrete-Filled Square Steel Tube coupling beam, including some girders, some girders successively without
Seam superposition, each girder include square steel tube and pour concrete inside the square steel tube, and described in each
Girder is used to stretch into shear wall along the two ends on its own length direction.
Preferably, it is be arranged in parallel between two adjacent girders.
Used as an optional implementation method, in an embodiment of the present invention, the prefabricated Concrete-Filled Square Steel Tube of multilayer connects
Beam also includes the dark beam of concrete, and the dark beam of concrete is seamless to be stacked on the girder at top, and the concrete is dark
Beam is flushed with the wide setting of some girders, and the top surface of the dark beam of the concrete with the top surface of floor.
As an optional implementation method, in an embodiment of the present invention, the dark depth of beam of concrete with it is described
The thickness of floor is identical, and the dark Liang Zang of concrete is integrally formed in the floor and with the floor.
Wherein, in construction, the dark beam of concrete can be together cast-in-place with the floor.
As an optional implementation method, in an embodiment of the present invention, some edges are provided with the dark beam of concrete
The vertical muscle of its own length direction spread configuration, and the vertical muscle stretched into the shear wall, the gross area of the vertical muscle be with
Square steel tube upper wall surface area not less than the girder positioned at top is foundation.
Wherein, the vertical muscle is mainly used to undertake the moment of flexure of the prefabricated Concrete-Filled Square Steel Tube coupling beam of the multilayer, the vertical muscle
Anchorage length in the shear wall can be by specification《Code for design of concrete structures》Requirement in GB50010 is calculated.
Used as an optional implementation method, in an embodiment of the present invention, the square steel tube of each girder is wrapped
The two side extended along its own length direction is included, each side wall two ends have each extended over side plate, and the side plate is respectively protruding into
In shear wall described in two;
Wherein, the thickness of each side plate is all higher than or equal to the sidewall thickness of the girder.
Preferably, the thickness of each side plate is equal to the sidewall thickness of the girder, i.e. in Specific construction, only
Two side walls of the square steel tube of the girder need to be lengthened and set, in order to stretch into the shear wall.
Used as an optional implementation method, in an embodiment of the present invention, each side plate is anchored in described cutting
Power within the walls, and in each side plate is provided with peg.
Wherein, anchorage length of each side plate in the shear wall is according to specification CECS 230《Skyscraper steel-
Concrete composite structure design discipline》In requirement calculate.
Wherein, the peg in the side plate can ensure the bonding strength of the side plate and the shear wall.
Used as an optional implementation method, in an embodiment of the present invention, the girder is three, respectively the bottom of positioned at
First girder in portion, the second girder positioned at middle part and the 3rd girder positioned at top, the dark beam of the concrete is seamless folded to be set
In on the 3rd girder;
Fluting is provided with the middle part of second girder, it is symmetrical that second girder is divided into relatively described fluting by the fluting
The Part I and Part II of setting, the Part I and the Part II are isometric;
Wherein, the length of the Part I be the second girder clear span 1/3rd and second girder highly
In smaller value.
Specifically, by the way of being slotted at the middle part of second girder, second girder can not influenceed
On the premise of structural strength, effectively save material reduces construction cost, while can also facilitate the pipe of the advancing equipment in construction
Road or miscellaneous part, improve the convenience of construction.
As an optional implementation method, in an embodiment of the present invention, if the bottom of first girder is provided with
The vertical muscle arranged along its own length direction is done, and the vertical muscle is stretched into the shear wall.
Wherein, the vertical muscle in first girder should meet being required and detailing requiments by curved calculating for first girder,
Also, anchorage length of the vertical muscle in the shear wall also should be according to specification《Code for design of concrete structures》GB50010
In requirement calculate.
Used as an optional implementation method, in an embodiment of the present invention, each girder is prefabricated components,
Connected by way of spot welding between two adjacent square steel tubes of the girder.
By the way of prefabricated components, can facilitate and the girder is prefabricated in the factory, then again by prefabricated master
Beam is assembled at the scene, is saved the duration and is reduced construction cost.
Additionally, can also be connected by way of spot welding between two adjacent girders, i.e. two adjacent girders it
Between be superimposed and set, and without additionally setting fixed form.
As an optional implementation method, in an embodiment of the present invention, inside each square steel tube of the girder
Be arranged with some pegs, some pegs along the square steel tube the evenly distributed setting of length direction.
By the way of some pegs are provided with each girder, can be ensured using the peg
The collaborative work of the concrete inside the square steel tube and the square steel tube.
Wherein, the peg for being set on the square steel tube of the 3rd girder also ensures the square steel tube and the dark beam of concrete of the 3rd girder
Synergy.
As an optional implementation method, in an embodiment of the present invention, inside each square steel tube of the girder
Concrete for normal concrete, regeneration monolith or regenerated aggregate concrete.
Using regeneration monolith or regenerated aggregate concrete, the profit again to concrete solid waste can be realized
With reaching the purpose of energy-conserving and environment-protective.
Wherein, the regeneration monolith is using old buildings, old structures, old road, old bridge
Or old dykes and dams remove after gained all or part of reinforcing bar of removal after waste and old concrete, poured together with novel concrete and
The concrete of formation.
Preferably, the girder, the side plate can use Q235B steel, because it has good combination property, cryogenic property
Good, cold stamping performance, welding performance and the good advantage of machinability.
Compared with prior art, the present invention having the beneficial effect that using technical scheme:
(1) ductility of coupling beam is effectively improved.The prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer provided in an embodiment of the present invention, uses
Some girders successively seamless matching are set, so that the span-depth radio of the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer for being formed is
The several times of single coupling beam;Additionally, forming girder by the way of the casting concrete inside square steel tube, it is possible to increase structure
Deformability, it is ensured that coupling beam has good ductile performance, it is to avoid coupling beam occurs brittle shear failure.
(2) easy construction and structure manufacture quality is high.The prefabricated Concrete-Filled Square Steel Tube of multilayer provided in an embodiment of the present invention connects
Beam, by each girder by the way of prefabricated components, by the use of square steel tube as template, conveniently internal can pour coagulation
Soil, while can also meet the condition that component is made in factory, can preferably control concreting and the maintenance quality of inside, make
The girder quality that must be formed is high.Additionally, by the way of prefabricated components, can realize being assembled at the scene, with construction speed
Spend the fast and controllable advantage of construction quality.
(3) economize on resources.The prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer provided in an embodiment of the present invention, can select in square steel tube
Waste and old concrete is recycled, greatly saved by inside filling regeneration monolith or regenerated aggregate concrete, realization
Resource, reduces the discarded landfill of waste and old concrete.
Sum it up, the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer of the invention can not only ensure the ductility of concrete connecting-beam
It is required that, and construction is simple, easy for installation and installation quality is high, while can also economize on resources.
Brief description of the drawings
Fig. 1 is the scheme of installation of the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer provided in an embodiment of the present invention.
Fig. 2 is the II internally profiles of Fig. 1.
Fig. 3 is the III internal cross section figures of Fig. 1.
Specific embodiment
In the present invention, term " on ", D score, "left", "right", "front", "rear", " top ", " bottom ", " interior ", " outward ",
" in ", " vertical ", " level ", " transverse direction ", the orientation of the instruction such as " longitudinal direction " or position relationship be based on orientation shown in the drawings or
Position relationship.These terms are not intended to limit indicated dress primarily to preferably describe the present invention and embodiment
Put, element or part there must be particular orientation, or be constructed and operated with particular orientation.
Also, above-mentioned part term is in addition to it can be used to indicate that orientation or position relationship, it is also possible to for representing it
His implication, such as term " on " also be likely used for representing certain relations of dependence or annexation in some cases.For ability
For the those of ordinary skill of domain, these terms concrete meaning in the present invention can be as the case may be understood.
Additionally, term " installation ", " setting ", " being provided with ", " connection ", " connected " should be interpreted broadly.For example, it may be solid
Fixed connection, is detachably connected, or monolithic construction;Can mechanically connect, or electrical connection;Can be joined directly together, or
It is indirectly connected to by intermediary, or is two connections internal between device, element or part.For this area
For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be as the case may be understood.
Additionally, term " first ", " second " etc. are mainly used for distinguishing different devices, element or part (specifically
Species identical may be likely to difference with construction), be not intended to show or implies meaning showing device, element or part
Relative importance and quantity.Unless otherwise indicated, the implication of " multiple " is two or more.
Technical scheme is further described below in conjunction with embodiment and accompanying drawing.
It is the dress of the prefabricated Concrete-Filled Square Steel Tube coupling beam 1 of multilayer provided in an embodiment of the present invention also referring to Fig. 1 to Fig. 3
With schematic diagram.The prefabricated Concrete-Filled Square Steel Tube coupling beam 1 of the multilayer includes some girders 10 and coagulation that seamless matching is set successively
Native dark beam 20, the dark beam 20 of concrete is seamless to be stacked on the girder 10 at top.Each girder 10 includes square steel tube 10a
And concrete 10b inside square steel tube 10a is poured, and each girder 10 is used to along the two ends on its own length direction
Stretch into shear wall.The dark beam 20 of concrete and the wide setting of each girder 10, and top surface and the floor 2 of the dark beam 20 of concrete
Top surface is flushed.
Using by some designs of the seamless matching of girder 10, it is possible to increase the prefabricated Concrete-Filled Square Steel Tube coupling beam 1 of multilayer
Span-depth radio, reduces the rigidity of the prefabricated Concrete-Filled Square Steel Tube coupling beam 1 of multilayer;Additionally, including square steel tube using each girder 10
10a and the design of concrete 10b inside square steel tube 10a is poured, coagulation can be facilitated by the use of square steel tube 10a as formwork
Native 10b's pours, while it is also possible that formed the prefabricated Concrete-Filled Square Steel Tube coupling beam 1 of multilayer have preferable deformability and
Preferable ductile performance, it is to avoid the prefabricated Concrete-Filled Square Steel Tube coupling beam 1 of multilayer occurs brittle shear failure.
In the present embodiment, some seamless matching settings successively of girder 10, i.e., be nothing between two adjacent girders 10
Seam laminating is set.Preferably, it is be arranged in parallel between two adjacent girders 10, i.e. each girder 10 girder adjacent thereto
10 be arranged in parallel.For the seamless connection being further ensured that between two adjacent girders 10, two adjacent girders 10 can
After location and installation is good, connected by the way of spot welding.It is understood that in other embodiments, also can be by adjacent two
The superposition of root girder 10 is set, and other fixed forms are set without extra.
In the present embodiment, each square steel tube 10a of girder 10 is preferably made of Q235B steel, because it has
Good combination property, low temperature performance well, cold stamping performance, welding performance and the good advantage of machinability.
Further, in order to ensure each square steel tube 10a of girder 10 and pour the concrete inside square steel tube 10a
The collaborative work of 10b, can arrange some peg 10c inside each girder 10, and some peg 10c can be along square steel tube 10a
The evenly distributed setting of length direction.Specifically, the peg 10c quantity in each girder 10 can according to the length of girder 10 come
Calculate, and the distance between adjacent two peg 10c preferably equal.
Further, each girder 10 is prefabricated components, by the way of prefabricated components, can facilitate girder 10
It is prefabricated in the factory, is then again assembled prefabricated girder 10 at the scene, so as to saves the duration and reduce construction cost.
In the present embodiment, girder 10 is preferably three, respectively positioned at the first girder 11 of bottom, positioned at the of middle part
Two girders 12, and positioned at the 3rd girder 13 at top.That is, the second girder 12 it is parallel it is seamless be stacked on the first girder 11, the 3rd
Girder 13 it is parallel it is seamless be stacked on the second girder 12, the dark beam 20 of above-mentioned concrete is seamless to be stacked on the 3rd girder 13.Pin
Easily occur that span-depth radio is small to conventional coupling beam, energy dissipation capacity is poor, the problems such as easily there is brittle shear failure, the present invention uses three
The mode that girder is sequentially overlapped so that the span-depth radio of the prefabricated Concrete-Filled Square Steel Tube coupling beam 1 of multilayer is effectively improved, therefore, it is possible to improve
Malformation ability, it is ensured that the prefabricated Concrete-Filled Square Steel Tube coupling beam 1 of multilayer has preferable ductile performance, it is to avoid brittle shear occurs
Destruction.Specifically, the first girder 11 includes above-mentioned square steel tube 10a and pours concrete 10b inside square steel tube 10a, should
The cross sectional shape of square steel tube 10a can be square or rectangle, and pouring the concrete 10b inside square steel tube 10a can be
Normal concrete, regeneration monolith or regenerated aggregate concrete.Wherein, regeneration monolith can be using old
Building, old structures, old road, old bridge or old dykes and dams remove after gained removal all or part reinforcing bar it
Waste and old concrete afterwards, the concrete for being poured together with novel concrete and being formed.Using the casting concrete inside square steel tube 10a
The mode of 10b, can realize pouring for concrete 10b as template by the use of square steel tube 10a, reduce branch die process, conveniently apply
Work and can realize being made in factory, be conducive to controlling pouring and maintenance quality for concrete.Additionally, using regeneration block
Concrete or regenerated aggregate concrete, can reduce the landfill of discarded concrete, realize the recycling of discarded concrete, section
About resource and reduce materials cost.
Similarly, the second girder 12 includes the second square steel tube (sign) and pours in the second concrete in the second square steel tube
(sign), the 3rd girder 13 includes third party's steel pipe and pours in the 3rd concrete in third party's steel pipe, the second square steel tube,
Cross sectional shape of the cross sectional shape of third party's steel pipe with above-mentioned square steel tube 10a is identical, and the second concrete, the 3rd concrete are equal
It is identical with above-mentioned concrete 10b materials, therefore repeat no more here.
Further, the square steel tube 10a of the first girder 11 includes two the first side walls extended along its own length direction
(sign), i.e. two the first side walls can be two side walls that square steel tube 10a is oppositely arranged, at two the two of the first side wall
End has each extended over the first side plate 11b, and the first side plate of two couple 11b is respectively protruding into anchoring in the shear wall at two ends.Specifically, should
First side plate 11b can be anchored in the two sides shear wall, i.e. the first shear wall 3 and the second shear wall 4, by by two pairs first
Side plate 11b is anchored in the first shear wall 3 and the second shear wall 4 respectively, and available first shear wall 3 and the second shear wall 4 will
The two ends of the first girder 11 are fixed.Can learn, the first side plate of two couple 11b is respectively in the first shear wall 3 and
Anchorage length in two shear walls 4 can be according to specification CECS 230《Steel-concrete Mixed Structures in High-rise Buildings design discipline》In
Requirement calculated.
Further, the thickness of the first side plate of two couple 11b be all higher than or the first side wall equal to square steel tube 10a thickness
Degree.Preferably, the thickness of the first side plate of two couple 11b is equal to the thickness of the first side wall of square steel tube 10a, you can directly by square steel
The two side walls of pipe 10a are lengthened and set, and are anchored in shear wall, and without additionally setting processing side plate, then by side plate and side
Wall is connected, and is conducive to improving the convenience constructed.It is understood that in other embodiments, in order to further ensure that first
The two ends of girder 11 and the bonding strength of shear wall, also can be set greater than the first square steel tube by the thickness of first side plate 11b
The wall thickness of the first side wall of 10a.
Further, peg 10c is provided with each piece of the first side plate 11b, first can be ensured using peg 10c
The bonding strength of side plate 11b and shear wall.
Can learn, the square steel tube of the second girder 12 also includes two the second sides extended along its own length direction
Wall (is not indicated), and the second side plate (sign) has been each extended at the two ends of two second sidewalls, and two pairs of the second side plates are stretched respectively
Enter in above-mentioned the first shear wall 3 and the second shear wall 4, and above-mentioned peg 10c is provided with each block of the second side plate.
The structure of second side plate is identical with the first above-mentioned side plate 11b, therefore repeats no more here.
Similarly, the square steel tube of the 3rd girder 13 also includes that two the 3rd side walls extended along its own length direction (are not marked
Show), each extend over the 3rd side plate (sign) at the two ends of two the 3rd side walls, two pairs of the 3rd side plates are respectively protruding into above-mentioned
In first shear wall 3 and the second shear wall 4, and above-mentioned peg 10c is provided with each block of the 3rd side plate.3rd side
The structure of plate and the first above-mentioned side plate 11b and the second side plate all same, therefore repeat no more here.
Further, the bottom of the first girder 11 is provided with some vertical muscle 11c arranged along its own length direction, and
Vertical muscle 11c is stretched into shear wall.Specifically, the vertical muscle 11c in the first girder 11 need to meet being wanted by curved calculating for the first girder 11
Summation detailing requiments.Additionally, the vertical muscle 11c on the both sides of the first girder 11 is anchored in the first shear wall 3 and the second shearing respectively
In wall 4, also, anchorage lengths of the vertical muscle 11c in the first shear wall 3 and the second shear wall 4 also should be according to specification《Concrete
Code for structural design》Requirement in GB50010 is calculated.
In the present embodiment, the 12a that slots is provided with the middle part of the second girder 12, be divided into for the second girder 12 by fluting 12a
Part I 12b and Part II 12c that the Central Symmetry of relative fluting 12a is set, Part I 12b and Part II
12c is isometric.Specifically, fluting 12a can be rectangular channel, and the length of fluting 12a can be with Part I 12b and Part II
12c is equal, or with Part I 12b and Part II 12c, depending on Specific construction situation adjustment.Due to the second girder
12 are installed between the first girder 11 and the 3rd girder 13, therefore, the power that the second girder 12 bears is relatively small, is not influenceing
On the premise of the structural strength of two girders 12, material can be saved by the way of the 12a that slots, and can also be set during convenient construction
The arrangement of standby pipeline or miscellaneous part, improves the convenience of construction.
Further, the length of the Part I 12b is 1/3rd and described of the clear span of the second girder 12
Smaller value in the height of two girders 12.That is, when the height of the second girder 12 is less than 1/3rd of the clear span of the second girder 12,
The length of Part I 12b is the height of the second girder 12;And when the height of the second girder 12 is more than the clear span of the second girder 12
1/3rd when, then the length of Part I 12b is chosen as 1/3rd of the clear span of the second girder 12.
In the present embodiment, it is the top surface floor strength of the guarantee prefabricated Concrete-Filled Square Steel Tube coupling beam 1 of multilayer, in floor 2
Set with the wide dark beam 20 of concrete of the prefabricated Concrete-Filled Square Steel Tube coupling beam 1 of multilayer, the height of the dark beam 20 of concrete be set to
The thickness of floor 2 is identical, and during construction and installation, the dark Liang20Zang of concrete is integrally formed in floor 2 and with floor 2, i.e.
During construction, the dark beam 20 of concrete can be together cast-in-place with floor 2.Concrete operations are, when floor 2 is constructed, can be in floor 2 and multilayer
At the region of the prefabricated connection of Concrete-Filled Square Steel Tube coupling beam 1, reinforcement treatment is carried out to floor 2, i.e. set up vertical muscle and stirrup, to carry
High bearing capacity.
Further, the dark beam 20 of concrete is anchored in shear wall respectively along the two ends on its own length direction.Specifically
Ground, is provided with some vertical muscle 21 along its own length direction spread configuration in the dark beam 20 of concrete, and vertical muscle 21 stretches into shearing
Anchor within the walls, it is with not less than (that is, the 3rd girder of girder 10 positioned at top to indulge the gross area of the muscle 21 in the dark beam 20 of concrete
13) area of third party's steel pipe upper wall surface is foundation.That is, the arrangement plane of the vertical muscle 21 in the dark beam 20 of concrete
Product can be calculated according to the area of third party's steel pipe upper wall surface of the 3rd girder 13 such that it is able to be easy to calculate the diameter of vertical muscle 21
With radical.Wherein, the vertical muscle 21 is main is used to undertake the moment of flexure of the prefabricated Concrete-Filled Square Steel Tube coupling beam 1 of multilayer, and vertical muscle 21 is being cut
Power anchorage length within the walls should be according to specification《Code for design of concrete structures》Requirement in GB50010 is calculated.
Further, in order to ensure the cooperative bearing of the 3rd girder 13 and the dark beam 20 of concrete, in the side of the 3rd girder 13
The upper surface of steel pipe 10a is disposed with some above-mentioned peg 10c, and some peg 10c can be in square steel tube 10a upper surfaces along square steel
The evenly distributed setting of length direction of pipe 10a.
During Specific construction, can be together cast-in-place with floor 2 by the dark beam 20 of concrete, i.e. made at the scene, and this first
Girder 11, the second girder 12 and the 3rd girder 13 can be prefabricated in the factory, i.e. be poured in the square steel tube 10a for having predefined
Concrete 10b, to form prefabricated components, is then poured with the dark beam 20 of concrete and shear wall at the scene again.
The prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer provided in an embodiment of the present invention, using some girders are seamless folded successively
Add and put, so that the span-depth radio of the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer for being formed is many times of conventional coupling beam;Additionally, adopting
Used in the mode of square steel tube inside casting concrete, it is possible to increase malformation ability, it is ensured that coupling beam has good ductility
Can, it is to avoid coupling beam occurs brittle shear failure.Additionally, the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer provided in an embodiment of the present invention,
By some girders by the way of prefabricated components, by the use of square steel tube as template, internal casting concrete can be facilitated, together
When can also meet factory make component condition, can preferably control inside concreting and maintenance quality so that shape
Into girder quality it is high.By the way of prefabricated components, can realize being assembled at the scene, with speed of application is fast and construction
Quality controllable advantage.
The prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer disclosed in the embodiment of the present invention is described in detail above, herein
Apply specific case to be set forth principle of the invention and implementation method, the explanation of above example is only intended to help
Understand the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer of the invention and its core concept;Simultaneously for the general technology people of this area
Member, according to thought of the invention, will change in specific embodiments and applications, in sum, this explanation
Book content should not be construed as limiting the invention.
Claims (11)
1. the prefabricated Concrete-Filled Square Steel Tube coupling beam of a kind of multilayer, it is characterised in that including some girders, some girders according to
Secondary seamless matching, each girder include square steel tube and pour concrete inside the square steel tube, and each
The girder is used to stretch into shear wall along the two ends on its own length direction.
2. the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer according to claim 1, it is characterised in that the prefabricated square steel of multilayer
Pipe concrete coupling beam also includes the dark beam of concrete, and the dark beam of concrete is seamless to be stacked on the girder at top, institute
The dark beam of concrete is stated to be flushed with the top surface of floor with the wide setting of some girders, and the top surface of the dark beam of the concrete.
3. the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer according to claim 2, it is characterised in that the dark beam of concrete
Height is identical with the thickness of the floor, and the dark Liang Zang of concrete is integrally formed in the floor and with the floor.
4. the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer according to Claims 2 or 3, it is characterised in that the concrete is dark
Some vertical muscle along its own length direction spread configuration are provided with beam, and the vertical muscle is stretched into the shear wall, it is described vertical
It with the square steel tube upper wall surface area not less than the girder positioned at top is foundation that the gross area of muscle is.
5. the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer according to Claims 2 or 3, it is characterised in that
The each square steel tube of the girder includes the two side extended along its own length direction, the two ends of each side wall
Side plate is each extended over, the side plate is stretched into the shear wall;
Wherein, the thickness of each side plate is all higher than or equal to the sidewall thickness of the girder.
6. the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer according to claim 5, it is characterised in that each equal anchor of side plate
It is fixed in the shear wall, and peg is provided with each side plate.
7. the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer according to any one of claim 1 to 6, it is characterised in that
The girder is three, respectively positioned at the first girder of bottom, positioned at second girder at middle part and positioned at top
3rd girder, the dark beam of concrete is seamless to be stacked on the 3rd girder;
Fluting is provided with the middle part of second girder, second girder is divided into relatively described fluting and is symmetrical arranged by the fluting
Part I and Part II, the Part I and the Part II are isometric;
Wherein, during the length of the Part I is 1/3rd and the second girder height of the second girder clear span
Smaller value.
8. the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer according to claim 7, it is characterised in that the bottom of first girder
Portion is provided with some vertical muscle for extending arrangement along its own length direction, and the vertical muscle is stretched into the shear wall.
9. the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer according to claim 1, it is characterised in that each girder is equal
It is prefabricated components, is connected by way of spot welding between two adjacent square steel tubes of the girder.
10. the prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer according to claim 1, it is characterised in that each girder
Square steel tube inside be arranged with some pegs, some pegs along the square steel tube the evenly distributed setting of length direction.
The prefabricated Concrete-Filled Square Steel Tube coupling beam of 11. multilayer according to any one of claim 1 to 10, it is characterised in that each
Concrete inside the square steel tube of girder described in root is normal concrete, regeneration monolith or regenerated aggregate concrete.
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Cited By (1)
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CN108018995A (en) * | 2017-11-27 | 2018-05-11 | 深圳大学 | A kind of doubly-linked girder construction and its construction method |
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