CN106869385A - Full assembled steel prefabricated concrete floor combination beam - Google Patents
Full assembled steel prefabricated concrete floor combination beam Download PDFInfo
- Publication number
- CN106869385A CN106869385A CN201710125055.9A CN201710125055A CN106869385A CN 106869385 A CN106869385 A CN 106869385A CN 201710125055 A CN201710125055 A CN 201710125055A CN 106869385 A CN106869385 A CN 106869385A
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- Prior art keywords
- concrete floor
- prefabricated concrete
- steel
- girder steel
- combination beam
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- 239000004567 concrete Substances 0.000 title claims abstract description 199
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 147
- 239000010959 steel Substances 0.000 title claims abstract description 147
- 210000000078 claw Anatomy 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 21
- 238000004064 recycling Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000011513 prestressed concrete Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/10—Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
Abstract
The invention discloses a kind of full assembled steel prefabricated concrete floor combination beam, it is related to building structure field.The combination beam includes the girder steel with top flange, multiple prefabricated concrete floors for being embedded with guide groove being mutually combined in the same plane, connecting elements, C-type clamp tool, fastener and end limit component, prefabricated concrete floor is arranged on the upper surface of the top flange of girder steel, some open slots being engaged with connecting elements are provided with the side wall of prefabricated concrete floor, prefabricated concrete floor has the upper surface of the top flange that the girder steel is fixed on fastener by the C-type clamp；End limit component include be used for the bolted base plate in the top flange of girder steel, limiting plate is provided with base plate, the end of prefabricated concrete floor is placed between the limiting plate and the top flange of girder steel.The present invention can avoid the wet trade in work progress, and simple structure, convenient disassembly, efficiency of construction are high, and can realize the replacing and recycling of prefabricated concrete floor.
Description
Technical field
The present invention relates to building structure field, and in particular to a kind of full assembled steel-prefabricated concrete floor combination beam.
Background technology
Steel-concrete composite beam is a kind of new structure type grown up on the basis of steel construction and concrete structure
Formula.It between girder steel and concrete floor mainly by setting both shear connector (peg, channel-section steel, curved muscle etc.), resistance
Starting at interface and Relative sliding, make an entirety and cooperation.
At present, conventional steel-concrete composite beam is that steel-cast-in-place concrete floor combination beam and steel-overlapping monoblock type are mixed
Solidifying Tulou plate combination beam.
Steel-cast-in-place concrete floor combination beam is made up of girder steel, cast-in-place concrete floor and shear stud, with overall firm
The advantages of degree is big, compound action is notable, is applicable to the complicated flooring of horizontal layout.But have the following disadvantages：1. wet trade amount
It is very big, cause low construction efficiency, high cost and pollution environment；2. template is more with live support, reduce further efficiency of construction,
Improve cost；3. girder steel and cast-in-place concrete floor are integrated after pouring, it is impossible to dismantle, and cause in the building of existing structure
When plate load increases, it is impossible to change thick floor, when floor is damaged, it is impossible to the floor for more renewing, and floor can not be circulated and made
With being not suitable for building industrialization.
Steel-overlapping integral concrete floor combination beam is by girder steel, overlapping integral concrete floor and shear stud group
Into, it is same to have the advantages that integral rigidity is big, compound action is notable, and scene saves template and portion support, compared to
Steel-cast-in-place concrete floor combination beam efficiency of construction increases.But still Shortcomings, it is mainly manifested in：1. scene stills need
Casting concrete realizes compound action, and wet trade is more, causes low construction efficiency, high cost and pollution environment；2. die mould steel
Board concrete composite floor and steel bar girder concrete combined floor need to install support when span is larger, plate bottom need to do fire prevention and
Preservative treatment, it is relatively costly；Prestressed concrete overlapped slab (flat board) and steel bar girder concrete folding plate are more than in span
Support need to be installed during 1.8m, prestressed concrete overlapped slab with ribbing need to install support when span is more than 3.6m, further reduce
Efficiency of construction, improves cost；3. girder steel and overlapping integral concrete floor are integrated after pouring, it is impossible to dismantle,
Cause when the load of floor of existing structure increases, it is impossible to change thick floor, when floor is damaged, it is impossible to the floor for more renewing,
And floor can not be recycled, and be not suitable for building industrialization.
The content of the invention
The present invention provides a kind of wet trade that can be avoided in work progress, simple structure, convenient disassembly, efficiency of construction
Height, and the full assembled steel-prefabricated concrete floor combination of replacing and the recycling of prefabricated concrete floor can be realized
Beam.
In order to solve the above technical problems, present invention offer technical scheme is as follows：
A kind of full assembled steel-prefabricated concrete floor combination beam, including the girder steel with top flange, multiple are same flat
The prefabricated concrete floor for being embedded with guide groove, connecting elements, C-type clamp tool, the spacing structure of fastener and end being mutually combined in face
Part, wherein：
The prefabricated concrete floor is arranged on the upper surface of the top flange of the girder steel；
Some open slots being engaged with the connecting elements are provided with the side wall of the prefabricated concrete floor, it is described
Internal thread sleeve is embedded with open slot；
The prefabricated concrete floor has the upper table of the top flange that the girder steel is fixed on fastener by the C-type clamp
Face, the C-type clamp tool includes the first level connecting rod and the second waling stripe that are parallel to each other, the first level connecting rod and second
It is provided with vertical connecting rod between waling stripe, the vertical connecting rod is with the one of the first level connecting rod and the second waling stripe
End connection, the other end of the first level connecting rod is provided with and the first level connecting rod and vertical connecting rod the vertical 3rd
Waling stripe, the other end of second waling stripe is provided with screwed hole, and the 3rd waling stripe is stretched in the guide groove；
The fastener includes the high-strength bolt being arranged in the screwed hole, the nut for being screwed in the high-strength bolt end
And the friction steel plate of the nut end is welded on, the friction steel plate is close to the lower surface of the top flange of the girder steel；
The end limit component include be used for the bolted base plate in the top flange of the girder steel, set on the base plate
Limiting plate is equipped with, the end of the prefabricated concrete floor is placed between the top flange of the limiting plate and the girder steel.
Further, the bottom of the connecting elements be bowl structure, top be square structure and open top, it is described
A pair relative side walls of connecting elements are provided with the first through hole corresponding with the internal thread sleeve；
Or, the connecting elements is square steel tube, is equipped with and the internal thread on a pair relative side walls of the square steel tube
The second corresponding through hole of sleeve.
Further, the first through hole and the second through hole are orthogonal slotted hole.
Further, the fastener includes the high-strength bolt being arranged in the screwed hole, is arranged at the high-strength spiral shell
The ball pivot of bolt end and the friction steel plate of the ball pivot end is arranged at, the friction steel plate is close to the upper limb of the girder steel
The lower surface of edge.
Further, the guide groove is formed by the C-type steel being embedded in the prefabricated concrete floor, the C-type steel
Bottom surface is concordant with the bottom surface of the prefabricated concrete floor, anchor connection between the C-type steel and the prefabricated concrete floor.
Further, the both sides of the top flange of the girder steel are provided with the C-type clamp tool and fastener.
Further, one end top that the limiting plate is contacted with prefabricated concrete floor is provided with position-limited claw, the limit
The side wall of one end that position plate is contacted with prefabricated concrete floor is concordant with the side wall of the base plate.
Further, the width of the base plate is not more than the half of the flange width of second girder steel.
Further, the end of the prefabricated concrete floor is provided with the groove corresponding with the position-limited claw.
Further, the prefabricated concrete floor is multiple, and tongue and groove is passed through between two neighboring prefabricated concrete floor
Mode is connected.
The invention has the advantages that：
Compared with prior art, first, it is of the invention for full assembled steel-prefabricated concrete floor combination beam in it is each
Individual parts (especially prefabricated concrete floor) are factory and complete, without poured in place concrete wet trade so that
Efficiency of construction is high, reduces cost, and do not pollute the environment.
Secondly, in prefabricated concrete floor manufacturing process, after the completion of the framework of steel reinforcement overlap joint of prefabricated concrete floor, need
Pre-buried internal thread sleeve is welded in the appropriate location of reinforcing bar, so at the scene in work progress, prefabricated concrete floor lifting is in place
Afterwards, adjacent prefabricated concrete floor can quickly be connected by bolt and connecting elements, job site wet-less operation, construction
Operation is simple to operation.Additionally, when connecting elements is arranged on the length direction of prefabricated concrete floor, can not only be multiple pre-
Concrete floor processed is quickly connected, additionally it is possible to bear the shearing of the length direction of prefabricated concrete floor.Company of the invention
Connection member ensure prefabricated concrete floor between connect globality and it is successional simultaneously, being only bolted by reality
Being reliably connected between multiple prefabricated concrete floors in existing same plane.The manufacturing cost of connecting elements of the invention is relatively low,
Can be prefabricated in advance, the duration is not take up, all-weather construction substantially reduces the construction period, and can be used repeatedly, and
And the convenient disassembly between prefabricated concrete floor.
Again, the centering of C-type clamp lamps structure makes its self-balancing stress performance more reasonable so that prefabricated concrete floor
Being connected firmly between girder steel, superior performance.When mounted, it is only necessary to which high-strength bolt is screwed in the spiral shell on the second waling stripe
In pit, and the 3rd waling stripe is connected in the guide groove of prefabricated concrete floor, finally tightens high-strength bolt and make friction
Steel plate is close to the lower surface of the top flange of girder steel；Otherwise during dismounting so that install quick with convenient disassembly, it is not necessary to
Peg is set on girder steel, and further low cost improves efficiency of construction.And because girder steel and prefabricated concrete floor can
Dismounting so that when the load of floor of existing structure increases, can change the floor of thickness；When floor is damaged, the building that can more renew
Plate, and floor can recycle, and realize building industrialization.
Additionally, of the invention for being connected using end limit component in full assembled steel-prefabricated concrete floor combination beam
Connect the end of girder steel and prefabricated concrete floor；After connection, the limiting plate of end limit component can limit concrete Tulou
Motion of the plate relative to girder steel.In house maintenance process, end limit component of the invention can conveniently maintenance, replacing, dismounting
It is convenient, it is capable of achieving secondary utilization；When occur earthquake disaster, prefabricated concrete floor occur crack need change when, can directly lead to
Dismounting end limit component is crossed to realize.
In sum, full assembled girder steel-prefabricated concrete floor combination beam of the invention, efficiency of construction is high, low cost,
Do not pollute the environment；It is easy for installation, detachably, the replacing and recycling of prefabricated concrete floor can be realized.
Brief description of the drawings
Fig. 1 is the structural representation of full assembled girder steel-prefabricated concrete floor combination beam of the invention；
Fig. 2 is the A-A sectional views of the full assembled girder steel-prefabricated concrete floor combination beam shown in Fig. 1；
Fig. 3 is the knot of the embodiment 1 of connecting elements in full assembled girder steel-prefabricated concrete floor combination beam of the invention
Structure schematic diagram；
Fig. 4 is the one of the embodiment 2 of connecting elements in full assembled girder steel-prefabricated concrete floor combination beam of the invention
Plant structural representation；
Fig. 5 is the another of the embodiment 2 of connecting elements in full assembled girder steel-prefabricated concrete floor combination beam of the invention
A kind of structural representation；
Fig. 6 is one kind of prefabricated concrete floor in full assembled girder steel-prefabricated concrete floor combination beam of the invention
Structural representation；
Fig. 7 is the another of prefabricated concrete floor in full assembled girder steel-prefabricated concrete floor combination beam of the invention
Plant structural representation；
Fig. 8 is the structural representation of C-type clamp tool in full assembled girder steel-prefabricated concrete floor combination beam of the invention；
Fig. 9 is a kind of structural representation of fastener in full assembled girder steel-prefabricated concrete floor combination beam of the invention
Figure；
Figure 10 is that another structure of fastener in full assembled girder steel-prefabricated concrete floor combination beam of the invention is shown
It is intended to；
Figure 11 is another installation of C-type clamp tool in full assembled girder steel-prefabricated concrete floor combination beam of the invention
Structural representation
Figure 12 is a kind of knot of full assembled girder steel of the invention-prefabricated concrete floor combination beam medial end portions limit component
Structure schematic diagram；
Figure 13 is the another kind of full assembled girder steel of the invention-prefabricated concrete floor combination beam medial end portions limit component
Structural representation；
Figure 14 be full assembled girder steel-prefabricated concrete floor combination beam medial end portions limit component of the invention and girder steel,
The structural representation of the embodiment 1 connected between floor；
Figure 15 be full assembled girder steel-prefabricated concrete floor combination beam medial end portions limit component of the invention and girder steel,
The structural representation of prefabricated concrete floor in the embodiment 2 connected between floor；
Figure 16 be full assembled girder steel-prefabricated concrete floor combination beam medial end portions limit component of the invention and girder steel,
The structural representation of the embodiment 2 connected between floor；
Figure 17 be full assembled girder steel-prefabricated concrete floor combination beam medial end portions limit component of the invention and girder steel,
The structural representation of prefabricated concrete floor in the embodiment 3 connected between floor；
Figure 18 be full assembled girder steel-prefabricated concrete floor combination beam medial end portions limit component of the invention and girder steel,
The structural representation of the embodiment 3 connected between floor.
Figure 19 be full assembled girder steel-prefabricated concrete floor combination beam of the invention in contiguous prefabricated concrete floor it
Between the first tongue and groove connected mode, wherein, figure (b) is in figure (a) II-II sectional view, and figure (c) I-I is cutd open in figure (a)
View；
Figure 20 be full assembled girder steel-prefabricated concrete floor combination beam of the invention in contiguous prefabricated concrete floor it
Between second tongue and groove connected mode, wherein, figure (b) is in figure (a) II-II sectional view, and figure (c) I-I is cutd open in figure (a)
View；
Figure 21 be full assembled girder steel-prefabricated concrete floor combination beam of the invention in contiguous prefabricated concrete floor it
Between the third tongue and groove connected mode, wherein, figure (b) is in figure (a) II-II sectional view, and figure (c) I-I is cutd open in figure (a)
View.
Specific embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
The present invention provides a kind of full assembled steel-prefabricated concrete floor combination beam, as shown in Fig. 1 to Figure 21, including band
There are girder steel 1, multiple prefabricated concrete floors 2 for being embedded with guide groove 23 being mutually combined in the same plane, the connection of top flange
Component 5, C-type clamp tool 3, fastener 4 and end limit component 6, wherein：
Prefabricated concrete floor 2 is arranged on the upper surface of the top flange of girder steel 1；
Some open slots 21 being engaged with connecting elements 5, open slot 21 are provided with the side wall of prefabricated concrete floor 2
Internal thread sleeve 22 is inside embedded with, as shown in Figure 6 and Figure 7；
Prefabricated concrete floor 2 is fixed on the upper surface of the top flange of girder steel 1, C-type clamp by C-type clamp tool 3 and fastener 4
Tool 3 includes that the first level being parallel to each other connects 31 bars and the second waling stripe 34, and first level connects 31 bars and the second waling stripe
Vertical connecting rod 33 is provided between 34, vertical connecting rod 33 connects with one end of the waling stripe 34 of first level connecting rod 31 and second
Connect, the other end of first level connecting rod 31 is provided with threeth level vertical with first level connecting rod 31 and vertical connecting rod 33 and connects
Bar 32, the other end of the second waling stripe 34 is provided with screwed hole 35, and the 3rd waling stripe 32 is stretched in guide groove 23, such as Fig. 8 institutes
Show；
Fastener 4 include the high-strength bolt 41 being arranged in screwed hole 35, be screwed in the end of high-strength bolt 41 nut 42 with
And the friction steel plate 43 of the end of nut 42 is welded on, friction steel plate 43 is close to the lower surface of the top flange of girder steel 1, such as Fig. 9 institutes
Show；
End limit component 6 include be used for the bolted base plate 61 in the top flange of girder steel 1, set limited on base plate 61
Position plate 62, the end of prefabricated concrete floor 2 is placed between the top flange of limiting plate 62 and girder steel 1, as shown in figure 12.
First, each parts in full assembled steel-prefabricated concrete floor combination beam of the invention are (especially
Prefabricated concrete floor 2) it is factory and completes, without poured in place concrete wet trade so that efficiency of construction is high, reduce
Cost, and do not pollute the environment.
Secondly, in the manufacturing process of prefabricated concrete floor 2, after the completion of the framework of steel reinforcement overlap joint of prefabricated concrete floor 2,
Pre-buried internal thread sleeve 22 need to be welded in the appropriate location of reinforcing bar, so at the scene in work progress, prefabricated concrete floor 2 is lifted
After in place, adjacent prefabricated concrete floor 2 can quickly be connected by bolt and connecting elements 5, job site is without wet work
Industry, working procedure is simple to operation.Additionally, when connecting elements 5 is arranged on the length direction of prefabricated concrete floor 2, can not only
It is enough be quickly connected multiple prefabricated concrete floors 2, additionally it is possible to which that the length direction for bearing prefabricated concrete floor 2 is cut
Power.Connecting elements of the invention 5 ensure prefabricated concrete floor 2 between connect globality and it is successional simultaneously, only lead to
Cross bolt connection and be capable of achieving being reliably connected between multiple prefabricated concrete floors 2 in same plane.Connection structure of the invention
The manufacturing cost of part 5 is relatively low, can be prefabricated in advance, is not take up the duration, and all-weather construction substantially reduces the construction period, and
Can be used repeatedly, and the convenient disassembly between prefabricated concrete floor 2.
Again, the centering that C-type clamp has 3 structures makes its self-balancing stress performance more reasonable so that concrete Tulou
Being connected firmly between plate 2 and girder steel 1, superior performance.When mounted, it is only necessary to which high-strength bolt 41 is screwed in the second waling stripe
In screwed hole 35 on 34, and the 3rd waling stripe 32 is connected in the guide groove 23 of prefabricated concrete floor 2, finally tightens height
Strength bolt 41 simultaneously makes friction steel plate 43 be close to the lower surface of the top flange of girder steel 1；Otherwise during dismounting so that install and tear open
Unload fast and easy, it is not necessary to setting peg on girder steel 1, further low cost improves efficiency of construction.And due to steel
Beam and prefabricated concrete floor are detachable so that when the load of floor of existing structure increases, and can change the floor of thickness；Floor is damaged
Bad when, the floor that can more renew, and floor can be recycled, and realize building industrialization.
Additionally, of the invention for being connected using end limit component 6 in full assembled steel-prefabricated concrete floor combination beam
Connect the end of girder steel 1 and prefabricated concrete floor 2；After connection, the limiting plate 62 of end limit component 6 can limit concrete
Motion of the Tulou plate 2 relative to girder steel 1.In house maintenance process, end limit component 6 of the invention can conveniently maintenance, more
Change, convenient disassembly, be capable of achieving secondary utilization；When occur earthquake disaster, prefabricated concrete floor 2 occur crack need change when,
Directly can be realized by dismantling end limit component 6.
To sum up, full assembled girder steel-prefabricated concrete floor combination beam of the invention, efficiency of construction is high, and low cost will not
Pollution environment；It is easy for installation, detachably, the replacing and recycling of prefabricated concrete floor can be realized.
Used as a modification of the present invention, connecting elements 5 preferably uses following two structures：
In embodiment 1, as shown in figure 3, the bottom of connecting elements 5 is bowl structure, top is square structure and top
Opening, a pair relative side walls of connecting elements 5 are provided with the first through hole 51 corresponding with internal thread sleeve 22.
In embodiment 2, as shown in Figure 4 and Figure 5, connecting elements 5 is square steel tube, on a pair relative side walls of square steel tube
It is provided with the first through hole 51 corresponding with internal thread sleeve 22.
In embodiment 1, when connecting elements of the invention 5 uses bowl structure using bottom, top uses square structure simultaneously
And during open-topped structure type, when the effect in connecting elements 5 is subject to outside, the bowl structure of its bottom can be avoided
Stress concentration.First through hole on the side wall of connecting elements 5 is used to connect two adjacent prefabricated concrete floors 2 by bolt
Connect.The manufacturing cost of connecting elements of the invention 5 is relatively low, and quality of connection and effect are higher, is capable of achieving to be used repeatedly.
In embodiment 2, when structure type of the connecting elements of the invention 5 using square steel tube, can be needed for basis
Size is intercepted on ready-made square steel tube, and the perforate on the side wall of square steel tube, and processing is simple, low cost.
In above-mentioned two embodiment, the first through hole 51 on a pair relative side walls of connecting elements 5 is preferably mutually hangs down
Straight slotted hole.Slotted hole can be reduced in the machining accuracy and prefabricated concrete floor 2 of the first through hole 51 on connecting elements
Internal thread sleeve 22 pre-buried precision, save process time, reduce processing cost, and two slotted holes are mutually perpendicular to more
Plus it is easy to being screwed into for bolt.
In embodiment 1, when connecting elements 5 is processed, the second through hole can be provided with as electric light in the bottom of connecting elements 5
The interface of electric wire.
In embodiment 2, as shown in figure 5, the bottom of square steel tube is preferably installed with steel plate 52, top is provided with the cover plate that can be started
53.Both mode, cover plate 53 can also be fixedly connected using bolt etc. using welding between steel plate 52 and the bottom of square steel tube
Can be connected by screw bolts and the top of square steel tube between or connected mode that grafting etc. can be dismantled, in order to tearing open for bolt
Dress.It is of course also possible to use those skilled in the art it is conceivable that other connected modes for meeting mentioned above principle, do not influence
The realization of technical scheme.Steel plate and cover plate can strengthen the shear resistance of connecting elements of the invention.
When connecting elements 5 is processed, the second through hole connecing as lamp wire can be opened up on steel plate 52 and cover plate 53
Mouthful.
Additionally, the size of the prefabricated concrete floor according to required connection, strong in the connection for ensureing prefabricated concrete floor
Spend and by force intensity, the size of connecting elements 5 can be arbitrarily determined according to actual requirement of engineering.
In the present invention, fastener 4 is except that using high-strength bolt and nut and the combination of friction steel plate, can also use
Friction steel plate is directly welded in the end of screw rod, and C-type clamp is fixed using nut and have 3 and girder steel 2, friction steel plate is close to steel
The frame mode of the lower surface of the top flange of beam 1.
Fastener 4 can also use following structure in addition to above two frame mode, and as shown in Figure 10, fastener 4 is wrapped
Include the high-strength bolt 41 being arranged in screwed hole 35, the ball pivot 42 ' for being arranged at the end of high-strength bolt 41 and be arranged at ball pivot 42 '
The friction steel plate 43 of end, friction steel plate 43 is close to the lower surface of the top flange of girder steel 3.By in high-strength bolt 41 and friction
Ball pivot 42 ' is set between steel plate 43, it is ensured that in the following table of the top flange of the lower surface and girder steel 1 of prefabricated concrete floor 2
Not in the case of perfect parallelism (or flatness is undesirable), friction steel plate 43 can so be close to the top flange of girder steel 1 in face
Following table, to meet required reliable frictional power.
Additionally, the threaded connection in order to ensure high-strength bolt 41 and C-type clamp tool 3, prevents high-strength bolt 41 from being led because of loosening
Causing friction steel plate 43 can not be close to the lower surface of top flange of girder steel 3, in the upper of the second waling stripe 34 on high-strength bolt 41
Lower surface is preferably provided with nut 7, as shown in Figure 1.
Further, guide groove 23 is preferably and is formed by the C-type steel being embedded in prefabricated concrete floor 2, simple structure；This
Outward, inventor has found in research process, if in prefabricated concrete floor 2 after pre-buried C-type steel, also having coagulation below C-type steel
If soil layer, in the case where C-type steel can occur after C-type clamp tool 2 is installed, the compression damage of surface concrete, causes prefabricated concrete floor
2 destructions.Therefore, the bottom surface that C-type steel is preferably in the present invention is concordant with the bottom surface of prefabricated concrete floor 2.In order that obtaining C-type steel
The fastness being connected between prefabricated concrete floor 2, can such as be schemed between C-type steel and prefabricated concrete floor 2 with anchor connection
Shown in 1.
C-type steel can use the direct cold roll forming of steel plate, also can may be used also using L-type clod wash steel plate and steel plate welding fabrication
To use square steel tube excision forming.
Certainly, C-type steel is except above-mentioned several form processings, those skilled in the art can also be used it is conceivable that other
Form processing.
Above-mentioned introduction be girder steel 1 top flange side set C-type clamp tool 3 and fastener 4 situation.Such as Figure 11 institutes
Show, the both sides of the top flange of girder steel 1 can also be provided with C-type clamp and have 3 and fastener 4, can so increase pressure and friction
Power so that the connection between prefabricated concrete floor 2 and girder steel 1 is more firm.
Used as another improvement of the invention, as shown in Figure 12 and Figure 13, limiting plate 62 is contacted with prefabricated concrete floor 2
One end top be provided with position-limited claw 63, the side wall and base plate 61 of one end that limiting plate 62 is contacted with prefabricated concrete floor 2
Side wall is concordant.Prefabricated concrete floor 2 is placed on the top flange of girder steel 1 and is bolted between base plate 61 and girder steel 1
Afterwards, position-limited claw 63 can limit prefabricated concrete floor 2 and be moved up and down relative to girder steel 1.Limiting plate 62 is used for and concrete
The side wall bottom that ensure that prefabricated concrete floor 2 concordant with the side wall of base plate 61 of one end of the contact of Tulou plate 2 and girder steel 1
Contact.
Here two kinds of specific constructive forms of end limit component 6 are given：
The first structure：As shown in figure 12, the bottom of limiting plate 62 is welded with base plate 61, and the bottom end of limiting plate 62 is opened
Groove, makes top formation position-limited claw 63, and the side wall of the limiting plate 62 after fluting is concordant with the side wall of base plate.
Second structure：As shown in figure 13, limiting plate 62 is fixed by two blocks of steel plates 67 welded with base plate 61, and is limited
The side wall of base plate 61 is stretched out in one end of position plate 62, forms position-limited claw 63, the side wall of the end no more than base plate 61 of its light plate 67.
Certainly, end limit component 6 can also use those skilled in the art it is conceivable that meet mentioned above principle its
Its structure type, does not influence the implementation of technical scheme.
Can be provided be used for by multiple through holes 66 in above two structure, on position-limited claw 63 and be mixed with prefabricated by bolt
Solidifying Tulou crab bolt connection, as shown in figure 12, can further strengthen end limit component 1 to the spacing of prefabricated concrete floor
Effect.
For the width that the edge of a wing for ensureing prefabricated concrete floor 2 and girder steel 1 overlaps, prevent girder steel 1 section be subject to compared with
Big moment of torsion effect, the width of base plate 61 should be not more than the half of the flange width of girder steel 1.
Preferably, stiffener 64 can be provided between base plate 61 and limiting plate 62 with increase limiting plate 62 and base plate 61 it
Between bonding strength.
In order to ensure the uniformity of between base plate 61 and girder steel 1, bonding strength and the convenience of installation, on base plate 61
For being preferably 2 with the bolted mounting hole 65 of girder steel 1 and being distributed in the side on base plate 61 away from position-limited claw 63.
Further, mounting hole 65 is preferably slotted hole in the width of base plate 61.Slotted hole be designed to reduce
The machining accuracy in hole on mounting hole 65 and girder steel 1, is easy to adjustment end limit component 6 relative to prefabricated concrete floor 2 and steel
The position of beam 1.
Here the several embodiments connected between end limit component 6 and prefabricated concrete floor 2 are given：
Embodiment 1：As shown in figure 14, the limiting plate 62 of end limit component 6 directly bears against the upper of prefabricated concrete floor 2
Surface is limiting motion of the prefabricated concrete floor 2 relative to girder steel 1.
Embodiment 2：As shown in Figure 15 and Figure 16, the end of prefabricated concrete floor 2 is provided with recessed with what is communicated at the top of it
Groove 24, position-limited claw 13 is arranged in groove 24.
Embodiment 3：As shown in Figure 17 and Figure 18, the end of prefabricated concrete floor 2 is provided with and is not communicated with its top
Groove 24, position-limited claw 63 is arranged in groove 24.
In embodiment 1 and embodiment 2, the position corresponding with the through hole 66 on position-limited claw 63 on prefabricated concrete floor 2
Putting can be embedded with internal thread sleeve, be easy to the bolt connection of end limit component 6 and prefabricated concrete floor 2.
In embodiment 2 and embodiment 3, position-limited claw 63 can not only limit prefabricated concrete floor 2 relative on girder steel 1
Lower motion, additionally it is possible to limit prefabricated concrete floor 2 relative to the side-to-side movement of girder steel 1.
In the present invention, girder steel 2 and girder steel 1 can have multiple structural forms, such as can be T-steel beam, including top flange and
Web；Or can be steel beam with box shape, including overhanging top flange, web and lower flange；Can also be H profile steel beam, it is including upper
The edge of a wing, web and lower flange.Prefabricated concrete floor 2 can realize multispan arrangement and without disconnecting, factory makes simple, installs
It is more quick, make it is low with installation cost, prefabricated concrete floor 2 can from but be not limited to prefabricating common concrete floor,
Precast prestressed concrete floor or precast prestressed hollow concrete building floor.
When prefabricated concrete floor 2 is for multiple, two neighboring prefabricated concrete floor 2 is preferably connected by tongue and groove mode
Connect.The width and span of prefabricated concrete floor 2 with modularization, and can take into account the demand in terms of transport, prefabricated concrete floor
Between connected by tongue and groove mode.If necessary, can increase prefabricated along the horizontal prestressing force that is laterally applied to of prefabricated concrete floor 2
Keying strength and frictional force between concrete floor at tongue and groove.
Figure 19 to Figure 21 gives three kinds of tongue and groove forms at the edge of prefabricated concrete floor 2.When tongue and groove is shown in Figure 19
Form when, the tongue and groove step of a prefabricated concrete floor 2 is relatively thin, the tongue and groove step of another prefabricated concrete floor 2 compared with
Thickness, only need to set open slot 21 on the thicker prefabricated concrete floor 2 of tongue and groove step and be used to place connection structure in this case
Part 5.When tongue and groove is the form shown in Figure 20, the thickness of two tongue and groove steps of contiguous prefabricated concrete floor 2 is equal,
Open slot 21 need to be respectively provided with two tongue and groove steps of contiguous prefabricated concrete floor 2 to be used to place connecting elements 5.In order that
Electric wire can be passed through from the second through hole of the bottom of connecting elements 5, the position corresponding with the second through hole on prefabricated concrete floor 2
Put and should also be as being provided with the through hole for through electric wire.
Inventor when testing full assembled steel-prefabricated concrete floor combination beam of the invention, adjacent steel
Span between beam 1 is 3000mm, and the thickness of prefabricated concrete floor 2 is 330mm, and result of the test is as follows：The shearing resistance of fastener 4
Bearing capacity is 15kN, and the cracking moment of full assembled steel-prefabricated concrete floor combination beam is 135.0kN.m, and ultimate bending moment is
254.7kN.m, limiting flexibility is 50.41mm.
In sum, full assembled steel-prefabricated concrete floor combination beam of the invention has the advantages that：
1st, the anti-bending strength and cast-in-place concrete floor group of full assembled steel-prefabricated concrete floor combination beam of the invention
Conjunction beam is close, and its overall coordination stress performance can be equal to steel-cast in place concrete plate combination beam, shows good combination and makees
With；
2nd, the efficiency of construction of full assembled-steel-prefabricated concrete floor of the invention improves 3 times, and construction period shortens
90%.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of full assembled steel-prefabricated concrete floor combination beam, it is characterised in that including the girder steel with top flange, many
The individual prefabricated concrete floor for being embedded with guide groove being mutually combined in the same plane, connecting elements, C-type clamp tool, fastener and
End limit component, wherein：
The prefabricated concrete floor is arranged on the upper surface of the top flange of the girder steel；
Some open slots being engaged with the connecting elements, the opening are provided with the side wall of the prefabricated concrete floor
Internal thread sleeve is embedded with groove；
The prefabricated concrete floor has the upper surface of the top flange that the girder steel is fixed on fastener by the C-type clamp,
The C-type clamp tool includes the first level connecting rod and the second waling stripe that are parallel to each other, the first level connecting rod and the second water
Be provided with vertical connecting rod between flat connecting rod, the vertical connecting rod with the first level connecting rod and one end of the second waling stripe
Connection, the other end of the first level connecting rod is provided with threeth water vertical with the first level connecting rod and vertical connecting rod
Flat connecting rod, the other end of second waling stripe is provided with screwed hole, and the 3rd waling stripe is stretched in the guide groove；
The fastener include the high-strength bolt being arranged in the screwed hole, be screwed in the high-strength bolt end nut and
The friction steel plate of the nut end is welded on, the friction steel plate is close to the lower surface of the top flange of the girder steel；
The end limit component include be used for the bolted base plate in the top flange of the girder steel, be provided with the base plate
Limiting plate, the end of the prefabricated concrete floor is placed between the top flange of the limiting plate and the girder steel.
2. full assembled steel-prefabricated concrete floor combination beam according to claim 1, it is characterised in that the connection
The bottom of component is bowl structure, and top is square structure and open top, a pair relative side walls of the connecting elements
It is provided with the first through hole corresponding with the internal thread sleeve；
Or, the connecting elements is square steel tube, is equipped with and the internal thread sleeve on a pair relative side walls of the square steel tube
The second corresponding through hole.
3. full assembled steel-prefabricated concrete floor combination beam according to claim 2, it is characterised in that described first
Through hole and the second through hole are orthogonal slotted hole.
4. full assembled steel-prefabricated concrete floor combination beam according to claim 1, it is characterised in that the fastening
Part includes the high-strength bolt being arranged in the screwed hole, the ball pivot for being arranged at the high-strength bolt end and is arranged at described
The friction steel plate of ball pivot end, the friction steel plate is close to the lower surface of the top flange of the girder steel.
5. full assembled steel-prefabricated concrete floor combination beam according to claim 4, it is characterised in that the guide groove
Formed by the C-type steel being embedded in the prefabricated concrete floor, the bottom surface of the C-type steel and the prefabricated concrete floor
Bottom surface is concordant, anchor connection between the C-type steel and the prefabricated concrete floor.
6. full assembled steel-prefabricated concrete floor combination beam according to claim 5, it is characterised in that the girder steel
The both sides of top flange be provided with C-type clamp tool and fastener.
7. full assembled steel-prefabricated concrete floor combination beam according to claim 1, it is characterised in that described spacing
One end top that plate is contacted with prefabricated concrete floor is provided with position-limited claw, what the limiting plate was contacted with prefabricated concrete floor
The side wall of one end is concordant with the side wall of the base plate.
8. full assembled steel-prefabricated concrete floor combination beam according to claim 7, it is characterised in that the base plate
Width be not more than second girder steel flange width half.
9. full assembled steel-prefabricated concrete floor combination beam according to claim 8, it is characterised in that described prefabricated
The end of concrete floor is provided with the groove corresponding with the position-limited claw.
10. full assembled steel-prefabricated concrete floor combination beam according to claim 9, it is characterised in that described prefabricated
Concrete floor is multiple, is connected by tongue and groove mode between two neighboring prefabricated concrete floor.
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| CN201710125055.9A CN106869385A (en) | 2017-03-03 | 2017-03-03 | Full assembled steel prefabricated concrete floor combination beam |
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| CN201710125055.9A CN106869385A (en) | 2017-03-03 | 2017-03-03 | Full assembled steel prefabricated concrete floor combination beam |
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Cited By (3)
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| CN108179835A (en) * | 2018-02-07 | 2018-06-19 | 大连理工大学 | A kind of cracking resistance floor for finite deformation beam |
| CN113007451A (en) * | 2021-03-23 | 2021-06-22 | 中国五冶集团有限公司 | Conversion connecting buckle for I-shaped steel structure beam |
| CN113833186A (en) * | 2021-07-30 | 2021-12-24 | 盐城工学院 | Assembled structure of floor |
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Application publication date: 20170620 |