CN209369206U - Lightweight assembled folded plate and Cantilever Beams combined staircase - Google Patents
Lightweight assembled folded plate and Cantilever Beams combined staircase Download PDFInfo
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- CN209369206U CN209369206U CN201920008598.7U CN201920008598U CN209369206U CN 209369206 U CN209369206 U CN 209369206U CN 201920008598 U CN201920008598 U CN 201920008598U CN 209369206 U CN209369206 U CN 209369206U
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Abstract
The utility model relates to technical field of buildings, a kind of lightweight assembled folded plate and Cantilever Beams combined staircase are disclosed, comprising: the first staircase boards, the second staircase boards, the first half space and the second half space；It is prefabricated that staircase boards are all made of high performance concrete, and staircase boards include horizontally disposed pedal and vertically arranged vertical plate, the pedal connection of the first half space and the first staircase boards upper end, the pedal connection of the second half space and the second staircase boards lower end；The pedal of first staircase boards lower end and the pedal of the second staircase boards upper end pass through attachment beam by the vertical plate of the vertical plate and the second staircase boards upper end of attachment beam connection or the first staircase boards lower end and connect；The either end of attachment beam is connect with shear wall, and attachment beam is internally provided with steel bar stress and distribution bar.The lightweight assembled folded plate and Cantilever Beams combined staircase can save material utilization amount 40%~70%；It can effectively reduce dead load；Has many advantages, such as intensity height, fire resisting, anticorrosive.
Description
Technical field
The utility model relates to technical field of buildings, combine building with Cantilever Beams more particularly to a kind of lightweight assembled folded plate
Ladder.
Background technique
Country advocates assembled architecture, low in economic efficiency, the labor intensive of cast-in-situ stair, and financial resources are the time, uneconomical.
Assembled stair make in factory, have product specification, superior in quality feature, while reducing manpower, the time.But existing dress
It is had a single function with formula staircase structure, various scene requirements cannot be met very well, and it is larger to be self-possessed, lift relatively difficult, increasing
The investment of difficulty of construction and manpower and material resources.
Utility model content
(1) technical problems to be solved
The purpose of the utility model is to provide a kind of lightweight assembled folded plates and Cantilever Beams combined staircase, it is intended at least solve
One of technical problems existing in the prior art or related technologies.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of lightweight assembled folded plate and combines building with Cantilever Beams
Ladder, comprising: the first staircase boards, the second staircase boards, the first half space and the second half space；
It is prefabricated that first staircase boards and second staircase boards are all made of high performance concrete, first staircase boards and
Second staircase boards include horizontally disposed pedal and vertically arranged vertical plate, first half space and described first
The pedal of staircase boards upper end connects, and second half space is connected with the pedal of second staircase boards lower end；
The pedal of first staircase boards lower end connected with the pedal of second staircase boards upper end by attachment beam or
The vertical plate of first staircase boards lower end is connected with the vertical plate of second staircase boards upper end by attachment beam；The attachment beam
Either end is connect with shear wall, and the attachment beam is internally provided with steel bar stress and distribution bar.
Wherein, the attachment beam is rectangular beam, the pedal of first staircase boards lower end and second staircase boards upper end
Pedal connected by the rectangular beam.
Wherein, the attachment beam is vertical zigzag beam, the pedal of first staircase boards lower end and second staircase boards
The pedal of upper end passes through the vertical zigzag beam connection.
Wherein, the attachment beam is lateral zigzag beam, the vertical plate of first staircase boards lower end and second staircase boards
The vertical plate of upper end passes through the lateral zigzag beam connection.
Wherein, first half space and second half space include horizontally disposed horizontal part and vertical cloth
The support portion set；
The horizontal part upper surface is provided with splicing slot, and the support portion upper surface integrally connects with the horizontal part lower end surface
It connects.
Wherein, the splicing slot is internally provided with multiple connections for successively passing perpendicularly through the splicing slot and the support portion
Part is provided with multiple through-holes on the pedal；By the connector and the through-hole with realize first half space and
The connection of first staircase boards and the connection of second half space and second staircase boards.
Wherein, it is provided with multiple circular through holes on the pedal along its length, the diameter of the circular through hole is 25~
35mm, distance of the circular through hole away from pedal edge are more than or equal to 50mm.
Wherein, first half space is fixedly connected with the pedal of first staircase boards upper end, second rest
Platform and the pedal of second staircase boards lower end are slidably connected.
Wherein, reinforcing bar network framework is provided with inside first staircase boards and second staircase boards；
The diameter of reinforcing bar is 4~6mm in the reinforcing bar network framework, and the spacing in the reinforcing bar network framework between reinforcing bar is 50
~150mm.
Wherein, the thickness of the pedal and the vertical plate is 25~45mm.
(3) beneficial effect
Compared with prior art, the utility model has the advantage that
A kind of lightweight assembled folded plate provided by the utility model and Cantilever Beams combined staircase, the folded plate are combined with Cantilever Beams
Stair, which compare traditional staircase structure, can save material utilization amount 40%~70%；Material utilization amount significantly reduces, and can effectively reduce knot
Structure self weight, to reduce the difficulty of construction such as transport, lifting, support, shortens the construction period；It is excellent with intensity height, fire resisting, anticorrosive etc.
Point, materials are few, construction is simple, the service life is long, maintenance cost is low, the comprehensive cost for reducing engineering construction and using；Anti-seismic performance
It is excellent.
Detailed description of the invention
Fig. 1 is a kind of lateral sectional view of lightweight assembled folded plate and Cantilever Beams combined staircase of the utility model embodiment；
Fig. 2 is a kind of cross-section diagram of lightweight assembled folded plate and Cantilever Beams combined staircase of the utility model embodiment；
Fig. 3 is a kind of top view of lightweight assembled folded plate and Cantilever Beams combined staircase of the utility model embodiment；
Fig. 4 is reinforcing bar network framework in a kind of lightweight assembled folded plate of the utility model embodiment and Cantilever Beams combined staircase
Layout diagram；
Fig. 5 is a kind of side elevational cross-section of lightweight assembled folded plate and Cantilever Beams combined staircase of another embodiment of the utility model
Figure；
Fig. 6 is a kind of cross-section diagram of lightweight assembled folded plate and Cantilever Beams combined staircase of another embodiment of the utility model；
Fig. 7 is a kind of top view of lightweight assembled folded plate and Cantilever Beams combined staircase of another embodiment of the utility model；
Fig. 8 is a kind of side elevational cross-section of lightweight assembled folded plate and Cantilever Beams combined staircase of another embodiment of the utility model
Figure；
Fig. 9 is a kind of cross-section diagram of lightweight assembled folded plate and Cantilever Beams combined staircase of another embodiment of the utility model；
Figure 10 is a kind of top view of lightweight assembled folded plate and Cantilever Beams combined staircase of another embodiment of the utility model；
In figure: 1- pedal；2- through-hole；3- steel bar stress；4- distribution bar；5- connector；The second half space of 6-；7- slot
Mouthful；8- shear wall；9- reinforcing bar network framework.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection is also possible to be electrically connected or can communicate each other；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, the connection inside two elements or the interaction relationship of two elements be can be, unless otherwise restricted clearly.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
High performance concrete in the utility model includes but is not limited to Reactive Powder Concrete (RPC), high-performance coagulation
Native (HPC), ultra-high performance concrete (UHPC), technical fiber enhancing cement-base composite material (ECC).
Embodiment 1
Fig. 1 is a kind of lateral sectional view of lightweight assembled folded plate and Cantilever Beams combined staircase of the utility model embodiment,
As shown in Figure 1, comprising: the first staircase boards, the second staircase boards, the first half space and the second half space；First staircase boards
It include horizontally disposed pedal and vertically arranged vertical plate with the second staircase boards, the first half space and the first staircase boards upper end
Pedal connection, the second half space 6 connects with the pedal of the second staircase boards lower end；The pedal and second of first staircase boards lower end
The pedal of staircase boards upper end is connected by rectangular beam；The either end of rectangular beam is connect with shear wall.
It should be noted that as shown in Fig. 2, the first staircase boards and the second staircase boards include horizontally disposed 1 He of pedal
Vertically arranged vertical plate, the first staircase boards and the second staircase boards include muti-piece pedal and muti-piece vertical plate, wherein the length of pedal
It can be chosen according to actual needs with width, the length and height of vertical plate can be chosen according to actual needs.Pedal
Length it is identical with the length of vertical plate.Two pieces of parallel pedals are attached by vertical plate, and vertical plate is parallel with upper and lower two pieces simultaneously
Pedal vertically connect.Pedal and the molding of vertical plate formed by integrally casting, to form the staircase boards.
In the present embodiment, after the first staircase boards are by pedal and vertical plate successively alternate connection, the upper end of the first staircase boards
For pedal, the lower end of the first staircase boards is pedal；And
After second staircase boards are by pedal and vertical plate successively alternate connection, the upper end of the second staircase boards is pedal, second building
The lower end of gangboard is pedal.
It should be noted that as shown in figure 4, be provided with reinforcing bar network framework 9 inside the first staircase boards and the second staircase boards,
The diameter of reinforcing bar is 4~6mm in reinforcing bar network framework, and the spacing in reinforcing bar network framework between reinforcing bar is 50~150mm.
Preferably, the diameter of reinforcing bar is 6mm in reinforcing bar network framework, and the spacing in reinforcing bar network framework between reinforcing bar is 100mm.
In the utility model embodiment, the first half space and the second half space include horizontally disposed level
Portion；Horizontal part upper surface is provided with splicing slot.
Wherein, the length for splicing slot is identical with the length of pedal, and splicing slot is arranged along the length direction of horizontal part.
First half space and the second half space also include vertically arranged support portion；Support portion upper surface and level
Subordinate end face integrally connected.
Wherein, the length of support portion and the length of horizontal part are identical, and the width of support portion is less than the width of horizontal part.
It should be noted that splicing slot is internally provided with multiple connectors 5 for successively passing perpendicularly through splicing slot and support portion,
Multiple through-holes 2 are provided on pedal；By connector and through-hole with realize the connection of the first half space and the first staircase boards with
And second half space and the second staircase boards connection.
Wherein, connector 5 can be connection bolt.For example, pre-buried multiple M16 connection bolts inside splicing slot, connect spiral shell
Bolt successively passes perpendicularly through splicing slot and support portion.After M16 connection bolt passes through the through-hole on pedal, is filled or twisted by grouting
Tight nut is to realize the connection of the first half space and the first staircase boards and the connection of the second half space and the second staircase boards.
Wherein, multiple circular through holes are provided on pedal along its length, the diameter of circular through hole is 25~35mm, round
Distance of the through-hole away from pedal edge is more than or equal to 50mm.
Preferably, pedal sets 2 diameters respectively along 5 branch position of width as the circular through hole of 30mm.
In the present embodiment, the position of circular through hole and the position of the connector inside splicing slot correspond on pedal.
In the present embodiment, the first half space and the pedal of the first staircase boards upper end are fixedly connected, the second half space
It is slidably connected with the pedal of the second staircase boards lower end.
It is understood that the first half space connects bolt by pre-buried 2 M16 connection bolt inside splicing slot
Successively pass perpendicularly through splicing slot and support portion.After M16 connection bolt passes through the corresponding circular through hole on pedal, pass through filling
Slurry filling is to realize that the first half space and the pedal of the first staircase boards upper end are fixedly connected；
And second half space by splicing slot inside pre-buried 2 M16 connection bolt, connect bolt it is successively vertical
Across splicing slot and support portion.M16 connection bolt pass through pedal on corresponding circular through hole after, by tighten nut with
Realize being slidably connected for the pedal of the second half space and the second staircase boards lower end.
First staircase boards and the second staircase boards are prefabricated using high performance concrete, and the thickness of pedal and vertical plate is 25~
45mm。
Preferably, the first staircase boards and the second staircase boards are prefabricated using Reactive Powder Concrete (RPC), high with intensity,
Fire resisting, it is anticorrosive the advantages that, materials are few, construction is simple, the service life is long, maintenance cost is low, reduce engineering construction and use comprehensive
Close cost.
Preferably, the thickness of pedal and vertical plate is 30mm.
Further, in the present embodiment, the pedal of the first staircase boards lower end and the pedal of the second staircase boards upper end pass through
Rectangular beam connection.
It should be noted that the width of rectangular beam is 200mm, rectangle depth of beam is identical according to the height of vertical plate.Rectangle
Steel reinforcement cage, the steel bar stress 3 that 4 diameters are 12mm are set in beam, and diameter is the distribution bar 4 of 6mm, and distribution bar spacing is
50mm.100mm is reserved in 4 steel bar stress one end, connects for subsequent overhanging.
Wherein, steel bar stress and distribution bar are three-level reinforcing bar.
It should be noted that the top of rectangular beam is connect with the pedal of the first staircase boards lower end, the lower part of rectangular beam and second
The pedal of staircase boards upper end connects.
In the present embodiment, the first staircase boards, the second staircase boards and rectangular beam are that whole factory formwork integral preform is complete
At.Wherein, the material of staircase boards and rectangular beam includes but is not limited to Reactive Powder Concrete (RPC), high performance concrete
(HPC), ultra-high performance concrete (UHPC), technical fiber enhancing cement-base composite material (ECC).
Fig. 3 is a kind of top view of lightweight assembled folded plate and Cantilever Beams combined staircase of the utility model embodiment, such as Fig. 3
Shown, shear wall 8 is reserving notch 7 with rectangular beam link position, the long 120mm of notch, width 150mm, rectangular beam and shear wall it
Between pour notch using Reactive Powder Concrete (RPC) grouting and be attached.
The folded plate and Cantilever Beams combined staircase, can be in proof strength, cracking resistance, antidetonations using high-performance substitution conventional concrete
Under the premise of performance, significantly reduce stair volume, more traditional stair subtract matter 40~70%.Configuration aspects break through traditional show
Thinking is poured, stair primary load bearing component and both steps of marking time are combined into one, the form power transmission mechanism is clear, shape is light and handy, empty
Between feel full.In addition, the stair can one-pass molding, and its surface directly reaches decorative cover effect, has saved the material of secondary decoration
Material and cost of labor, have reached economic and environment-friendly target, bring tremendous economic and social benefit for construction industry.
Embodiment 2
Fig. 5 is a kind of lateral sectional view of lightweight assembled folded plate and Cantilever Beams combined staircase of the utility model embodiment,
As shown in Figure 5, comprising: the first staircase boards, the second staircase boards, the first half space and the second half space；First staircase boards
It include horizontally disposed pedal and vertically arranged vertical plate with the second staircase boards, the first half space and the first staircase boards upper end
Pedal connection, the second half space 6 connects with the pedal of the second staircase boards lower end；The pedal and second of first staircase boards lower end
The pedal of staircase boards upper end is connected by vertical zigzag beam；The either end of vertical zigzag beam is connect with shear wall.
It should be noted that as shown in fig. 6, the first staircase boards and the second staircase boards include horizontally disposed 1 He of pedal
Vertically arranged vertical plate, the first staircase boards and the second staircase boards include muti-piece pedal and muti-piece vertical plate, wherein the length of pedal
It can be chosen according to actual needs with width, the length and height of vertical plate can be chosen according to actual needs.Pedal
Length it is identical with the length of vertical plate.Two pieces of parallel pedals are attached by vertical plate, and vertical plate is parallel with upper and lower two pieces simultaneously
Pedal vertically connect.Pedal and the molding of vertical plate formed by integrally casting, to form the staircase boards.
In the present embodiment, after the first staircase boards are by pedal and vertical plate successively alternate connection, the upper end of the first staircase boards
For pedal, the lower end of the first staircase boards is pedal；And
After second staircase boards are by pedal and vertical plate successively alternate connection, the upper end of the second staircase boards is pedal, second building
The lower end of gangboard is pedal.
It should be noted that as shown in figure 4, be provided with reinforcing bar network framework 9 inside the first staircase boards and the second staircase boards,
The diameter of reinforcing bar is 4~6mm in reinforcing bar network framework, and the spacing in reinforcing bar network framework between reinforcing bar is 50~150mm.
Preferably, the diameter of reinforcing bar is 6mm in reinforcing bar network framework, and the spacing in reinforcing bar network framework between reinforcing bar is 100mm.
In the utility model embodiment, the first half space and the second half space include horizontally disposed level
Portion；Horizontal part upper surface is provided with splicing slot.
Wherein, the length for splicing slot is identical with the length of pedal, and splicing slot is arranged along the length direction of horizontal part.
First half space and the second half space also include vertically arranged support portion；Support portion upper surface and level
Subordinate end face integrally connected.
Wherein, the length of support portion and the length of horizontal part are identical, and the width of support portion is less than the width of horizontal part.
It should be noted that splicing slot is internally provided with multiple connectors 5 for successively passing perpendicularly through splicing slot and support portion,
Multiple through-holes 2 are provided on pedal；By connector and through-hole with realize the connection of the first half space and the first staircase boards with
And second half space and the second staircase boards connection.
Wherein, connector 5 can be connection bolt.For example, pre-buried multiple M16 connection bolts inside splicing slot, connect spiral shell
Bolt successively passes perpendicularly through splicing slot and support portion.After M16 connection bolt passes through the through-hole on pedal, is filled or twisted by grouting
Tight nut is to realize the connection of the first half space and the first staircase boards and the connection of the second half space and the second staircase boards.
Wherein, multiple circular through holes are provided on pedal along its length, the diameter of circular through hole is 25~35mm, round
Distance of the through-hole away from pedal edge is more than or equal to 50mm.
Preferably, pedal sets 2 diameters respectively along 5 branch position of width as the circular through hole of 30mm.
In the present embodiment, the position of circular through hole and the position of the connector inside splicing slot correspond on pedal.
In the present embodiment, the first half space and the pedal of the first staircase boards upper end are fixedly connected, the second half space
It is slidably connected with the pedal of the second staircase boards lower end.
It is understood that the first half space connects bolt by pre-buried 2 M16 connection bolt inside splicing slot
Successively pass perpendicularly through splicing slot and support portion.After M16 connection bolt passes through the corresponding circular through hole on pedal, pass through filling
Slurry filling is to realize that the first half space and the pedal of the first staircase boards upper end are fixedly connected；
And second half space by splicing slot inside pre-buried 2 M16 connection bolt, connect bolt it is successively vertical
Across splicing slot and support portion.M16 connection bolt pass through pedal on corresponding circular through hole after, by grouting filling with
Realize being slidably connected for the pedal of the second half space and the second staircase boards lower end.
First staircase boards and the second staircase boards are prefabricated using high performance concrete, and the thickness of pedal and vertical plate is 25~
45mm。
Preferably, the first staircase boards and the second staircase boards are prefabricated using Reactive Powder Concrete (RPC), high with intensity,
Fire resisting, it is anticorrosive the advantages that, materials are few, construction is simple, the service life is long, maintenance cost is low, reduce engineering construction and use comprehensive
Close cost.
Preferably, the thickness of pedal and vertical plate is 30mm.
Further, in the present embodiment, the pedal of the first staircase boards lower end and the pedal of the second staircase boards upper end pass through
Vertical zigzag beam connection.
It should be noted that the thickness 50mm of vertical zigzag beam.Reinforcing bar is set in vertical zigzag beam, 6 diameters are
The steel bar stress 3 of 10mm, diameter are the distribution bar 4 of 6mm, and distribution bar spacing is 50mm.4 steel bar stress one end are reserved
100mm is connected for subsequent overhanging.
Wherein, steel bar stress and distribution bar are three-level reinforcing bar.
It should be noted that the top in vertical zigzag beam is connect with the pedal of the first staircase boards lower end, vertical zigzag beam
Interior lower part is connect with the pedal of the second staircase boards upper end.
In the present embodiment, the first staircase boards, the second staircase boards and vertical zigzag beam are that whole factory formwork is integrally pre-
System is completed.Wherein, the material of staircase boards and vertical zigzag beam includes but is not limited to that Reactive Powder Concrete (RPC), high-performance are mixed
Solidifying soil (HPC), ultra-high performance concrete (UHPC), technical fiber enhancing cement-base composite material (ECC).
Fig. 7 is a kind of top view of lightweight assembled folded plate and Cantilever Beams combined staircase of the utility model embodiment, such as Fig. 7
Shown, shear wall 8 is reserving two notches 7, the long 120mm of notch, width 100mm, vertical Z-shaped with vertical zigzag beam link position
Notch is poured using Reactive Powder Concrete (RPC) grouting between ellbeam and shear wall to be attached.
The folded plate traditional staircase structure compared with Cantilever Beams combined staircase can save material utilization amount 40%~70%；Material is used
Amount is significantly reduced, and be can effectively reduce dead load, to reduce the difficulty of construction such as transport, lifting, support, is shortened the construction period；Tool
Have the advantages that intensity height, fire resisting, anticorrosive, materials are few, construction is simple, the service life is long, maintenance cost is low, reduce engineering construction and
The comprehensive cost used；Anti-seismic performance is excellent.
Embodiment 3
Fig. 8 is a kind of lateral sectional view of lightweight assembled folded plate and Cantilever Beams combined staircase of the utility model embodiment,
As shown in Figure 8, comprising: the first staircase boards, the second staircase boards, the first half space and the second half space；First staircase boards
It include horizontally disposed pedal and vertically arranged vertical plate with the second staircase boards, the first half space and the first staircase boards upper end
Pedal connection, the second half space 6 connects with the pedal of the second staircase boards lower end；The vertical plate and second of first staircase boards lower end
The vertical plate of staircase boards upper end passes through lateral zigzag beam connection；The either end of lateral zigzag beam is connect with shear wall.
It should be noted that as shown in figure 9, the first staircase boards and the second staircase boards include horizontally disposed 1 He of pedal
Vertically arranged vertical plate, the first staircase boards and the second staircase boards include muti-piece pedal and muti-piece vertical plate, wherein the length of pedal
It can be chosen according to actual needs with width, the length and height of vertical plate can be chosen according to actual needs.Pedal
Length it is identical with the length of vertical plate.Two pieces of parallel pedals are attached by vertical plate, and vertical plate is parallel with upper and lower two pieces simultaneously
Pedal vertically connect.Pedal and the molding of vertical plate formed by integrally casting, to form the staircase boards.
In the present embodiment, after the first staircase boards are by pedal and vertical plate successively alternate connection, the upper end of the first staircase boards
For pedal, the lower end of the first staircase boards is vertical plate；And
After second staircase boards are by pedal and vertical plate successively alternate connection, the upper end of the second staircase boards is vertical plate, second building
The lower end of gangboard is pedal.
It should be noted that as shown in figure 4, be provided with reinforcing bar network framework 9 inside the first staircase boards and the second staircase boards,
The diameter of reinforcing bar is 4~6mm in reinforcing bar network framework, and the spacing in reinforcing bar network framework between reinforcing bar is 50~150mm.
Preferably, the diameter of reinforcing bar is 6mm in reinforcing bar network framework, and the spacing in reinforcing bar network framework between reinforcing bar is 100mm.
In the utility model embodiment, the first half space and the second half space include horizontally disposed level
Portion；Horizontal part upper surface is provided with splicing slot.
Wherein, the length for splicing slot is identical with the length of pedal, and splicing slot is arranged along the length direction of horizontal part.
First half space and the second half space also include vertically arranged support portion；Support portion upper surface and level
Subordinate end face integrally connected.
Wherein, the length of support portion and the length of horizontal part are identical, and the width of support portion is less than the width of horizontal part.
It should be noted that splicing slot is internally provided with multiple connectors 5 for successively passing perpendicularly through splicing slot and support portion,
Multiple through-holes 2 are provided on pedal；By connector and through-hole with realize the connection of the first half space and the first staircase boards with
And second half space and the second staircase boards connection.
Wherein, connector 5 can be connection bolt.For example, pre-buried multiple M16 connection bolts inside splicing slot, connect spiral shell
Bolt successively passes perpendicularly through splicing slot and support portion.After M16 connection bolt passes through the through-hole on pedal, is filled or twisted by grouting
Tight nut is to realize the connection of the first half space and the first staircase boards and the connection of the second half space and the second staircase boards.
Wherein, multiple circular through holes are provided on pedal along its length, the diameter of circular through hole is 25~35mm, round
Distance of the through-hole away from pedal edge is more than or equal to 50mm.
Preferably, pedal sets 2 diameters respectively along 5 branch position of width as the circular through hole of 30mm.
In the present embodiment, the position of circular through hole and the position of the connector inside splicing slot correspond on pedal.
In the present embodiment, the first half space and the pedal of the first staircase boards upper end are fixedly connected, the second half space
It is slidably connected with the pedal of the second staircase boards lower end.
It is understood that the first half space connects bolt by pre-buried 2 M16 connection bolt inside splicing slot
Successively pass perpendicularly through splicing slot and support portion.After M16 connection bolt passes through the corresponding circular through hole on pedal, pass through filling
Slurry filling is to realize that the first half space and the pedal of the first staircase boards upper end are fixedly connected；
And second half space by splicing slot inside pre-buried 2 M16 connection bolt, connect bolt it is successively vertical
Across splicing slot and support portion.M16 connection bolt pass through pedal on corresponding circular through hole after, by tighten nut with
Realize being slidably connected for the pedal of the second half space and the second staircase boards lower end.
First staircase boards and the second staircase boards are prefabricated using high performance concrete, and the thickness of pedal and vertical plate is 25~
45mm。
Preferably, the first staircase boards and the second staircase boards are prefabricated using Reactive Powder Concrete (RPC), high with intensity,
Fire resisting, it is anticorrosive the advantages that, materials are few, construction is simple, the service life is long, maintenance cost is low, reduce engineering construction and use comprehensive
Close cost.
Preferably, the thickness of pedal and vertical plate is 30mm.
Further, in the present embodiment, the pedal of the first staircase boards lower end and the pedal of the second staircase boards upper end pass through
Lateral zigzag beam connection.
It should be noted that the thickness 50mm of lateral zigzag beam.Reinforcing bar is set in lateral zigzag beam, and 6 diameters are
The steel bar stress 3 of 10mm, diameter are the distribution bar 4 of 6mm, and distribution bar spacing is 50mm.4 steel bar stress one end are reserved
100mm is connected for subsequent overhanging.
Wherein, steel bar stress and distribution bar are three-level reinforcing bar.
It should be noted that the top in lateral zigzag beam is connect with the vertical plate of the first staircase boards lower end, lateral zigzag beam
Interior lower part is connect with the vertical plate of the second staircase boards upper end.
In the present embodiment, the first staircase boards, the second staircase boards and lateral zigzag beam are that whole factory formwork is integrally pre-
System is completed.Wherein, the material of staircase boards and lateral zigzag beam includes but is not limited to that Reactive Powder Concrete (RPC), high-performance are mixed
Solidifying soil (HPC), ultra-high performance concrete (UHPC), technical fiber enhancing cement-base composite material (ECC).
Figure 10 is that the top view of the utility model embodiment a kind of folded plate and Cantilever Beams combined staircase is cut as shown in Figure 10
Power wall 8 with lateral zigzag beam link position reserve two notches 7, the long 120mm of notch, width 340mm, lateral zigzag beam with cut
Notch is poured using Reactive Powder Concrete (RPC) grouting between power wall to be attached.
The folded plate and Cantilever Beams combined staircase substitute conventional concrete using high performance concrete, can be in proof strength, anti-
It splits, under the premise of anti-seismic performance, significantly reduces stair volume, more traditional stair subtract matter 40~70%.Compared to traditional thick heavy type
Stair, the stair external form is simple, structure light wt, spatial impression are full, can reduce vision constriction.
Displacement structure, stress are carried out to folded plate provided by the embodiment of the utility model and Cantilever Beams combined staircase below and relaxed
Appropriate numerical check.Its load combination factor and standard value are respectively according to " loading code for design of building structures " (GB50009-2012) the
3.2.4, table 5.1.1 value is 1.2 × DL+1.4 × LL=6.8kN/m3。
Being related to material includes: high performance concrete, worm steel muscle HRB400.Associated analog parameter is according to " concrete
Code for structural design " (GB50010-2010) 4.1,4.2 and high-performance concrete material parameter take least favorable value to draft, such as table
Listed by 1.
1 model parameter value table of table
Stair global displacement and stress are calculated and analyzed using abaqus finite element program.
Unit setting: stair are established using the secondary hexahedral element of 20 nodes, maximum mesh width 0.02m, encrypt part
0.01m is divided；HRB400 reinforcing bar is divided using the secondary truss element simulation of 3 nodes, element length 0.02m.
Loading environment: gravity is set as physical strength；Combined load vertical distribution permanent, living is in stair tread.
Boundary condition: fixed-link is arranged in upper end stair；Lower end setting sliding link；It is set with shear wall pouring reinforcement end
To be fixedly connected.
2 numerical simulation result of table is summarized
Three kinds of stair pattern amounts of deflection are all satisfied " Code for design of concrete structures " (GB50010-2010) 3.4.3 l0/250
Limit value requirement, wherein l0For the effective span of component.In terms of stair stress, with the design of material property testing statistics acquisition
Value 9.0MPa is reference, and three example scheme stair stress are respectively less than test value.In terms of reinforcement stresses, meet " concrete
Code for structural design " (GB50010-2010) 4.2.3 360MPa strength failure criterion.
According to the 3.7.7 articles of " technical specification for concrete structures of high-rise building " (JGJ 3-2010), building cover structure needs to meet
Comfort level requirement, i.e., the vertical vibration frequency of building cover structure is not preferably less than 3.0Hz, and vertical motion acceleration peak value is not to be exceeded
0.05。
The results are shown in Table 3 with acceleration peak value for the minimum vertical motion frequency of staircase structure.Wherein, vibration frequency passes through
Abaqus model analysis obtains, and acceleration peak value is calculated according to " technical specification for concrete structures of high-rise building " appendix A formula.
The minimum vertical motion frequency of table 3 and acceleration peak value calculated result
| Staircase structure | Vibration frequency/Hz | Acceleration peak value/m/s2 |
| Embodiment 1 | 29.75 | 0.0016 |
| Embodiment 2 | 27.89 | 0.0031 |
| Embodiment 3 | 32.90 | 0.0005 |
The vibration frequency and acceleration peak value of three kinds of stair patterns are all satisfied " technical specification for concrete structures of high-rise building "
It is required that.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of lightweight assembled folded plate and Cantilever Beams combined staircase characterized by comprising the first staircase boards, the second stair
Plate, the first half space and the second half space；
It is prefabricated that first staircase boards and second staircase boards are all made of high performance concrete, first staircase boards and described
Second staircase boards include horizontally disposed pedal and vertically arranged vertical plate, first half space and first stair
The pedal of plate upper end connects, and second half space is connected with the pedal of second staircase boards lower end；
The pedal of first staircase boards lower end is connected with the pedal of second staircase boards upper end by attachment beam or described
The vertical plate of first staircase boards lower end is connected with the vertical plate of second staircase boards upper end by attachment beam；Any of the attachment beam
End is connect with shear wall, and the attachment beam is internally provided with steel bar stress and distribution bar.
2. lightweight assembled folded plate as described in claim 1 and Cantilever Beams combined staircase, which is characterized in that the attachment beam is
The pedal of rectangular beam, first staircase boards lower end is connected with the pedal of second staircase boards upper end by the rectangular beam.
3. lightweight assembled folded plate as described in claim 1 and Cantilever Beams combined staircase, which is characterized in that the attachment beam is
Vertical zigzag beam, the pedal of first staircase boards lower end and the pedal of second staircase boards upper end pass through the vertical Z-shaped
Ellbeam connection.
4. lightweight assembled folded plate as described in claim 1 and Cantilever Beams combined staircase, which is characterized in that the attachment beam is
Lateral zigzag beam, the vertical plate of first staircase boards lower end and the vertical plate of second staircase boards upper end pass through the lateral Z-shaped
Ellbeam connection.
5. lightweight assembled folded plate as described in claim 1 and Cantilever Beams combined staircase, which is characterized in that first rest
Platform and second half space include horizontally disposed horizontal part and vertically arranged support portion；
The horizontal part upper surface is provided with splicing slot, the support portion upper surface and horizontal part lower end surface integrally connected.
6. lightweight assembled folded plate as claimed in claim 5 and Cantilever Beams combined staircase, which is characterized in that in the splicing slot
Portion is provided with multiple connectors for successively passing perpendicularly through the splicing slot and the support portion, is provided on the pedal multiple logical
Hole；Connection and the institute of first half space and first staircase boards are realized by the connector and the through-hole
State the connection of the second half space and second staircase boards.
7. lightweight assembled folded plate as claimed in claim 6 and Cantilever Beams combined staircase, which is characterized in that edge on the pedal
Length direction is provided with multiple circular through holes, and the diameter of the circular through hole is 25~35mm, and the circular through hole is away from pedal side
The distance of edge is more than or equal to 50mm.
8. lightweight assembled folded plate as claimed in claim 6 and Cantilever Beams combined staircase, which is characterized in that first rest
Platform is fixedly connected with the pedal of first staircase boards upper end, second half space and second staircase boards lower end
Pedal is slidably connected.
9. lightweight assembled folded plate as described in claim 1 and Cantilever Beams combined staircase, which is characterized in that first stair
Reinforcing bar network framework is provided with inside plate and second staircase boards；
The diameter of reinforcing bar is 4~6mm in the reinforcing bar network framework, the spacing in the reinforcing bar network framework between reinforcing bar is 50~
150mm。
10. lightweight assembled folded plate as described in claim 1 and Cantilever Beams combined staircase, which is characterized in that the pedal and
The thickness of the vertical plate is 25~45mm.
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| CN201920008598.7U CN209369206U (en) | 2019-01-03 | 2019-01-03 | Lightweight assembled folded plate and Cantilever Beams combined staircase |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518897A (en) * | 2019-01-03 | 2019-03-26 | 中国建筑第五工程局有限公司 | Lightweight assembled folded plate and Cantilever Beams combined staircase |
| CN112523444A (en) * | 2020-12-08 | 2021-03-19 | 中建西部建设建材科学研究院有限公司 | Ultra-high performance concrete prefabricated light and thin stair step and assembly and connection process thereof |
-
2019
- 2019-01-03 CN CN201920008598.7U patent/CN209369206U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518897A (en) * | 2019-01-03 | 2019-03-26 | 中国建筑第五工程局有限公司 | Lightweight assembled folded plate and Cantilever Beams combined staircase |
| CN112523444A (en) * | 2020-12-08 | 2021-03-19 | 中建西部建设建材科学研究院有限公司 | Ultra-high performance concrete prefabricated light and thin stair step and assembly and connection process thereof |
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