CN108221705A - A kind of twin legged thin wall pier I-steel bolster and application method convenient for removing - Google Patents
A kind of twin legged thin wall pier I-steel bolster and application method convenient for removing Download PDFInfo
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- CN108221705A CN108221705A CN201810245124.4A CN201810245124A CN108221705A CN 108221705 A CN108221705 A CN 108221705A CN 201810245124 A CN201810245124 A CN 201810245124A CN 108221705 A CN108221705 A CN 108221705A
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- steel
- bolster
- embedded frame
- pier
- thin wall
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention discloses a kind of twin legged thin wall pier I-steel bolster convenient for removing, the embedded hole for extending transversely through bridge pier is set, the first I-steel passes through embedded hole on bridge pier；Built-in fitting is set on the wall surface of bridge pier, and one end of diagonal brace connects the first I-steel, other end connection built-in fitting；Embedded frame is set on the inner wall of embedded hole, and the first I-steel, the second I-steel and supporting block are from top to bottom set gradually in embedded frame；The edge of a wing of first I-steel is horizontally disposed with, and the edge of a wing of the second I-steel is vertically arranged, and supporting block is set to the inner bottom surface of embedded frame；One end of spring connects the bottom surface of the first I-steel lower flange, and the other end connects the inner bottom surface of embedded frame.The invention also discloses the application methods of this twin legged thin wall pier I-steel bolster.The invention enables the first I-steel to take out more safe ready, does not need to cut off in the first I-steel so that the first I-steel may be reused, and be greatly saved cost.
Description
Technical field
The present invention relates to science of bridge building fields, and in particular to a kind of to be convenient for the twin legged thin wall pier I-steel bolster of dismounting and make
Use method.
Background technology
Twin legged thin wall pier is the bridge pier form that big or middle across footpath highway bridge is more commonly used at this stage, construction features be
There are two the Dun Bi being mutually parallel and main beam pivot or the bridge pier just connect on pier position.Reinforced Concrete Double limb Thin-Wall Piers can increase bridge
Pier rigidity reduces girder support reaction peak value, and it is beautiful to increase bridge.Prestressed concrete continuous rigid-framed bridge uses pier consolidation body
System, high double think-wall piers are a kind of ideal flexible piers here, it can support superstructure, holding bridge pier is stablized and certain
Flexibility adapts to the needs of superstructure displacement, and anti-thrust rigidity is the 1/4 of the anti-thrust rigidity of single limb Thin-Wall Piers, and anti-thrust is small,
Longitudinal flexible better function, smaller to span centre internal force constraints, stress condition is good.
It needs to set preformed hole on bridge pier, and I-steel is set to make in preformed hole when existing twin legged thin wall pier pours
The support of top bolster during to pour superstructure.But when completing superstructure and pouring, I-steel in preformed hole can be by
In steel creep or concrete creep deform cause to remove it is difficult, at present mostly using directly by the I-steel along bridge pier wall
The mode of face cutting is removed, so that I-steel cannot be reused, cost is high.
Invention content
The technical problems to be solved by the invention are after the completion of existing twin legged thin wall socle structure pours, mostly using straight
It connects and removes the I-steel along the mode that bridge pier wall surface is cut, so that I-steel cannot be reused, cost is high,
A kind of twin legged thin wall pier I-steel bolster and application method convenient for removing is designed to provide, is solved the above problems.
The present invention is achieved through the following technical solutions：
A kind of twin legged thin wall pier I-steel bolster convenient for removing, including bridge pier, the first I-steel, diagonal brace and built-in fitting；
Setting extends transversely through the embedded hole of bridge pier on the bridge pier, and first I-steel passes through embedded hole；The built-in fitting is set to
On the wall surface of bridge pier, and one end of diagonal brace connects the first I-steel, other end connection built-in fitting；Setting is pre-buried in the embedded hole
Frame, the second I-steel, supporting block and spring；The embedded frame is set on the inner wall of embedded hole, and the first I-steel,
Two I-steel and supporting block are from top to bottom set gradually in embedded frame；The edge of a wing of first I-steel is horizontally disposed with, institute
The edge of a wing for stating the second I-steel is vertically arranged, and the supporting block is set to the inner bottom surface of embedded frame；One end of the spring connects
The bottom surface of the first I-steel lower flange is connect, the other end connects the inner bottom surface of embedded frame.
In the prior art, when completion twin legged thin wall socle structure pours, the I-steel in preformed hole can be due to steel
Creep or concrete creep, which deform, to be caused to remove difficulty, uses more directly cut the I-steel along bridge pier wall surface at present
Mode removed so that I-steel cannot be reused, cost is high.
After the completion of Thin-Wall Piers main reinforcement is set up, embedded frame and built-in fitting are consolidated in application, when being constructed by the present invention
Surely it is connected to Thin-Wall Piers main reinforcement and completes to pour；Then one end of diagonal brace is welded in built-in fitting, the first I-steel is passed through pre-
It buries frame and the other end of diagonal brace is welded in the first I-steel；Then the second I-steel is set gradually in the first I-steel bottom
And supporting block, and one end of spring is welded in the bottom surface of the first I-steel lower flange, the other end is welded in the interior of embedded frame
Bottom surface；Top bolster is subsequently set up on the top flange of the first I-steel, and completes superstructure and pours；Subsequently top is tied
When structure concrete strength reaches threshold value, top bolster is removed；When needing to remove the first I-steel, using acetylene cutting machine by the
The web of two I-steel is cut along the second I-steel y direction, and the second I-steel being cut through is taken out from embedded frame
And supporting block；Then diagonal brace with the first I-steel is detached, and cut off spring, the first I-steel is taken out from embedded frame.By
In the presence of diagonal brace so that the power that the second I-steel and supporting block are born is only that fraction superstructure generates power and the first I-shaped
The power that the dead weight of steel generates, so when embedded frame deforms under the effects that concrete creep and is generated to the first I-steel
During pressure, a part of pressure is alleviated by spring, and the second I-steel deforms and oppresses supporting block, when supporting block is using wooden
When the softer structure of quality, can further compensator or trimmer pressure, and ensure structure safety；When needing to remove, cut-out second
The web of I-steel, pressure is fully transferred to spring at this time, and the second I-steel can cause the second I-steel with web cut-out
The edge of a wing be detached from the first I-steel, the second I-steel and supporting block are taken out to the space in release embedded frame at this time, can be made
Obtaining the first I-steel will not can not take out since embedded frame deforms, so that the first I-steel takes out more secure side
Just, it does not need to cut off in the first I-steel so that the first I-steel may be reused, and be greatly saved cost.
Further, the invention also includes wedge block, template, supporting rack and operating platforms；The wedge block fixed setting
In the upper surface of the first I-steel；The template is fixedly installed on the inclined-plane or/and the first I-steel of wedge block by supporting rack
Upper surface；The operating platform is fixedly installed on the upper surface of the first I-steel by supporting rack.
Further, the groove that the bottom surface setting of first I-steel and the edge of a wing of the second I-steel match；Institute
State setting idler wheel in groove；Inside grooves are stretched on the edge of a wing of second I-steel, and the edge of a wing of the second I-steel is contacted with rolling
Wheel.
The present invention is in application, when the first I-steel stress, since wedge block and supporting rack act on the first I-steel table
Face, so the first I-steel is not only subjected only to vertical direction pressure, it is also necessary to bear from supporting rack inhomogeneous deformation and wedge shape
The horizontal shear that block generates, and the first I-steel is fixed at both ends by diagonal brace, and when middle part is squeezed by embedded frame, it can generate very
Strong internal stress, the design that the present invention passes through groove and idler wheel so that the deformation that horizontal shear generates can uniformly be shared to whole
On root I-steel, avoid generating stress raisers, improve safety；Simultaneously in dismounting, even if the second I-steel is cut off
For web sometimes also due to frictional force is not easily taken out, idler wheel of the invention can effectively alleviate the first I-steel and the second I-shaped
Frictional force between steel so that taking-up is more prone to.
Further, first I-steel uses I45b I-steel.
Further, second I-steel uses I14 I-steel.
Further, the supporting block uses wood materials.
The present invention is in application, the intensity of I45b I-steel is sufficient for the pressure that top bolster is brought, and I14 I-steel valencys
Lattice relative to I45b cheap more than 80%, so in this way can significantly more efficient saving cost, single twin legged thin wall
Pier construction cost can save 100,000 yuans or more.
A kind of twin legged thin wall pier I-steel bolster application method convenient for removing includes the following steps：S1：In Thin-Wall Piers master
After the completion of muscle is set up, embedded frame and built-in fitting are fixedly connected on Thin-Wall Piers main reinforcement and complete to pour；S2：By one end of diagonal brace
Built-in fitting is welded in, the first I-steel is passed through into embedded frame and the other end of diagonal brace is welded in the first I-steel；S3：
One I-steel bottom sets gradually the second I-steel and supporting block, and one end of spring is welded in the first I-steel lower flange
Bottom surface, the other end are welded in the inner bottom surface of embedded frame；S4：Top bolster is set up on the top flange of the first I-steel, and complete
It is poured into superstructure；S5：When superstructure concrete strength reaches threshold value, top bolster is removed；S6：Using acetylene cutting machine
The web of second I-steel is cut, and the second work being cut through is taken out from embedded frame along the second I-steel y direction
Word steel and supporting block；Then diagonal brace with the first I-steel is detached, and cut off spring, the first I-shaped is taken out from embedded frame
Steel.
After the completion of Thin-Wall Piers main reinforcement is set up, embedded frame and built-in fitting are consolidated in application, when being constructed by the present invention
Surely it is connected to Thin-Wall Piers main reinforcement and completes to pour；Then one end of diagonal brace is welded in built-in fitting, the first I-steel is passed through pre-
It buries frame and the other end of diagonal brace is welded in the first I-steel；Then the second I-steel is set gradually in the first I-steel bottom
And supporting block, and one end of spring is welded in the bottom surface of the first I-steel lower flange, the other end is welded in the interior of embedded frame
Bottom surface；Top bolster is subsequently set up on the top flange of the first I-steel, and completes superstructure and pours；Subsequently top is tied
When structure concrete strength reaches threshold value, top bolster is removed；When needing to remove the first I-steel, using acetylene cutting machine by the
The web of two I-steel is cut along the second I-steel y direction, and the second I-steel being cut through is taken out from embedded frame
And supporting block；Then diagonal brace with the first I-steel is detached, and cut off spring, the first I-steel is taken out from embedded frame.By
In the presence of diagonal brace so that the power that the second I-steel and supporting block are born is only that fraction superstructure generates power and the first I-shaped
The power that the dead weight of steel generates, so when embedded frame deforms under the effects that concrete creep and is generated to the first I-steel
During pressure, a part of pressure is alleviated by spring, and the second I-steel deforms and oppresses supporting block, when supporting block is using wooden
When the softer structure of quality, can further compensator or trimmer pressure, and ensure structure safety；When needing to remove, cut-out second
The web of I-steel, pressure is fully transferred to spring at this time, and the second I-steel can cause the second I-steel with web cut-out
The edge of a wing be detached from the first I-steel, the second I-steel and supporting block are taken out to the space in release embedded frame at this time, can be made
Obtaining the first I-steel will not can not take out since embedded frame deforms, so that the first I-steel takes out more secure side
Just, it does not need to cut off in the first I-steel so that the first I-steel may be reused, and be greatly saved cost.
Further, the invention also includes following steps：S7：Concrete Filled is carried out to embedded frame inside.
Further, the groove that the bottom surface setting of first I-steel and the edge of a wing of the second I-steel match；Institute
State setting idler wheel in groove.
Further, step S3 includes following sub-step：Inside grooves are stretched into on the edge of a wing of second I-steel, and by second
The edge of a wing of I-steel is contacted with idler wheel.
The present invention is in application, when the first I-steel stress, since wedge block and supporting rack act on the first I-steel table
Face, so the first I-steel is not only subjected only to vertical direction pressure, it is also necessary to bear from supporting rack inhomogeneous deformation and wedge shape
The horizontal shear that block generates, and the first I-steel is fixed at both ends by diagonal brace, and when middle part is squeezed by embedded frame, it can generate very
Strong internal stress, the design that the present invention passes through groove and idler wheel so that the deformation that horizontal shear generates can uniformly be shared to whole
On root I-steel, avoid generating stress raisers, improve safety；Simultaneously in dismounting, even if the second I-steel is cut off
For web sometimes also due to frictional force is not easily taken out, idler wheel of the invention can effectively alleviate the first I-steel and the second I-shaped
Frictional force between steel so that taking-up is more prone to.
Compared with prior art, the present invention it has the following advantages and advantages：
1st, a kind of twin legged thin wall pier I-steel bolster convenient for removing of the present invention so that the first I-steel takes out safer
It is convenient, it does not need to cut off in the first I-steel so that the first I-steel may be reused, and be greatly saved cost；
2nd, a kind of twin legged thin wall pier I-steel bolster convenient for removing of the present invention so that the deformation that horizontal shear generates can be with
Uniformly shared to whole I-steel, avoid generating stress raisers, improve safety；Idler wheel can effectively be alleviated
Frictional force between first I-steel and the second I-steel so that taking-up is more prone to；
3rd, a kind of twin legged thin wall pier I-steel bolster application method convenient for removing of the present invention so that the first I-steel takes out
More safe ready does not need to cut off in the first I-steel so that the first I-steel may be reused, and be greatly saved into
This；
4th, a kind of twin legged thin wall pier I-steel bolster application method convenient for removing of the present invention so that horizontal shear generated
Deformation can uniformly be shared to whole I-steel, is avoided generating stress raisers, is improved safety；Idler wheel can have
Frictional force between the first I-steel of alleviation of effect and the second I-steel so that taking-up is more prone to.
Description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is side view of the present invention；
Fig. 3 is roller structure schematic diagram of the present invention.
Label and corresponding parts title in attached drawing：
1- bridge piers, the first I-steel of 2-, 3- diagonal braces, 4- built-in fittings, 5- wedge blocks, 6- templates, 7- supporting racks, 8- operations are flat
Platform, 11- embedded frames, the second I-steel of 12-, 13- supporting blocks, 14- springs.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As depicted in figs. 1 and 2, a kind of twin legged thin wall pier I-steel bolster convenient for removing of the present invention, including bridge pier 1, the
One I-steel 2, diagonal brace 3 and built-in fitting 4；Setting extends transversely through the embedded hole of bridge pier, first I-steel 2 on the bridge pier 1
Across embedded hole；The built-in fitting 4 is set on the wall surface of bridge pier 1, and one end of diagonal brace 3 connects the first I-steel 2, the other end
Connect built-in fitting 4；Setting embedded frame 11, the second I-steel 12, supporting block 13 and spring 14 in the embedded hole；It is described pre-buried
Frame 11 is set on the inner wall of embedded hole, and the first I-steel 2, the second I-steel 12 and supporting block 13 are in embedded frame 11
From top to bottom set gradually；The edge of a wing of first I-steel 2 is horizontally disposed with, and the edge of a wing of second I-steel 12 is set vertically
It puts, the supporting block 13 is set to the inner bottom surface of embedded frame 11；One end of the spring 14 connects 2 lower flange of the first I-steel
Bottom surface, the other end connect embedded frame 11 inner bottom surface.
When the present embodiment is implemented, when being constructed, after the completion of Thin-Wall Piers main reinforcement is set up, by embedded frame 11 and pre-buried
Part 4 is fixedly connected on Thin-Wall Piers main reinforcement and completes to pour；Then one end of diagonal brace 3 is welded in built-in fitting 4, by the first I-steel
2 pass through embedded frame 11 and the other end of diagonal brace 3 are welded in the first I-steel 2；Then it is set successively in 2 bottom of the first I-steel
The second I-steel 12 and supporting block 13 are put, and one end of spring 14 is welded in the bottom surface of 2 lower flange of the first I-steel, the other end
It is welded in the inner bottom surface of embedded frame 11；Subsequently top bolster is set up, and complete top on the top flange of the first I-steel 2
Structure pours；When subsequently superstructure concrete strength reaches threshold value, top bolster is removed；When need remove the first I-steel
When 2, the web of the second I-steel 12 is cut, and along 12 y direction of the second I-steel from embedded frame using acetylene cutting machine
It is middle to take out the second I-steel 12 being cut through and supporting block 13；Then diagonal brace is detached, and cut off bullet with the first I-steel 2
Spring takes out the first I-steel 2 from embedded frame.Due to the presence of diagonal brace 3 so that the second I-steel 12 and supporting block 13 are born
Power be only that fraction superstructure generates the power that the dead weight of power and the first I-steel 2 generates, so when embedded frame is in coagulation
When deforming under the effects that soil is crept and generating pressure to the first I-steel, a part of pressure is alleviated by spring 14, and second
I-steel 12 deforms and oppresses supporting block 13, can be into one when supporting block 13 is using wooden structure softer when quality
The compensator or trimmer pressure of step, and ensure structure safety；When needing to remove, the web of the second I-steel 12 is cut off, pressure is whole at this time
Spring 14 is transferred to, and the second I-steel 12 can cause the edge of a wing of the second I-steel 12 to be detached from the first I-steel with web cut-out
2, the second I-steel 12 and supporting block 13 are taken out to the space in release embedded frame 11 at this time, can cause the first I-steel 2
It will not can not take out since embedded frame deforms, so that the first I-steel 2 takes out more safe ready, not need to the
One I-steel 2 is cut off so that the first I-steel 2 may be reused, and be greatly saved cost.
Embodiment 2
As shown in figure 3, the present embodiment on the basis of embodiment 1, further includes top bolster, the top bolster includes wedge
Shape block 5, template 6, supporting rack 7 and operating platform 8；The wedge block 5 is fixedly installed on the upper surface of the first I-steel 2；It is described
Template 6 is fixedly installed on the inclined-plane of wedge block 5 or/and the upper surface of the first I-steel 2 by supporting rack 7；The operating platform 8
The upper surface of the first I-steel 2 is fixedly installed on by supporting rack 7.Bottom surface setting and the second work of first I-steel 2
The groove 21 that the edge of a wing of word steel 12 matches；Setting idler wheel 22 in the groove 21；The edge of a wing of second I-steel 12 is stretched into
Inside groove 21, and the edge of a wing of the second I-steel 12 is contacted with idler wheel 22.
When the present embodiment is implemented, when the first 2 stress of I-steel, since wedge block 5 and supporting rack 7 act on the first I-shaped
2 surface of steel, so the first I-steel 2 is not only subjected only to vertical direction pressure, it is also necessary to bear from 7 inhomogeneous deformation of supporting rack
And the horizontal shear that wedge block 5 generates, and the first I-steel 2 is fixed at both ends by diagonal brace 3, and middle part is squeezed by embedded frame 11
When, very strong internal stress can be generated, the present invention passes through the design of groove 21 and idler wheel 22 so that the deformation that horizontal shear generates can be with
Uniformly shared to whole I-steel, avoid generating stress raisers, improve safety；Simultaneously in dismounting, second
Even if I-steel 12 cuts off web sometimes also due to frictional force is not easily taken out, idler wheel 22 of the invention can effectively alleviate the
Frictional force between one I-steel 2 and the second I-steel 12 so that taking-up is more prone to.
Embodiment 3
For the present embodiment on the basis of embodiment 2, first I-steel 2 uses I45b I-steel.Second I-shaped
Steel 12 uses I14 I-steel.The supporting block 13 uses wood materials.
When the present embodiment is implemented, the intensity of I45b I-steel is sufficient for the pressure that top bolster is brought, and I14 I-steel
Price relative to I45b cheap more than 80%, so in this way can significantly more efficient saving cost, single double limbs are thin
Wall pier construction cost can save 100,000 yuans or more.
Embodiment 4
A kind of twin legged thin wall pier I-steel bolster application method convenient for removing of the present invention, includes the following steps：S1：Thin
After the completion of wall pier main reinforcement is set up, embedded frame 11 and built-in fitting 4 are fixedly connected on Thin-Wall Piers main reinforcement and complete to pour；S2：It will
One end of diagonal brace 3 is welded in built-in fitting 4, and the first I-steel 2 is passed through embedded frame 11 and the other end of diagonal brace 3 is welded in the
One I-steel 2；S3：Set gradually the second I-steel 12 and supporting block 13 in 2 bottom of the first I-steel, and by one end of spring 14
The bottom surface of 2 lower flange of the first I-steel is welded in, the other end is welded in the inner bottom surface of embedded frame 11；S4：In the first I-steel 2
Top flange on set up top bolster, and complete superstructure and pour；S5：When superstructure concrete strength reaches threshold value, tear open
Except top bolster；S6：The web of the second I-steel 12 is cut along 12 y direction of the second I-steel using acetylene cutting machine, and
The second I-steel 12 being cut through and supporting block 13 are taken out from embedded frame 11；Then diagonal brace 3 and the first I-steel 2 are divided
From, and spring 14 is cut off, the first I-steel 2 is taken out from embedded frame 11.
When the present embodiment is implemented, when being constructed, after the completion of Thin-Wall Piers main reinforcement is set up, by embedded frame 11 and pre-buried
Part 4 is fixedly connected on Thin-Wall Piers main reinforcement and completes to pour；Then one end of diagonal brace 3 is welded in built-in fitting 4, by the first I-steel
2 pass through embedded frame 11 and the other end of diagonal brace 3 are welded in the first I-steel 2；Then it is set successively in 2 bottom of the first I-steel
The second I-steel 12 and supporting block 13 are put, and one end of spring 14 is welded in the bottom surface of 2 lower flange of the first I-steel, the other end
It is welded in the inner bottom surface of embedded frame 11；Subsequently top bolster is set up, and complete top on the top flange of the first I-steel 2
Structure pours；When subsequently superstructure concrete strength reaches threshold value, top bolster is removed；When need remove the first I-steel
When 2, the web of the second I-steel 12 is cut, and along 12 y direction of the second I-steel from embedded frame using acetylene cutting machine
It is middle to take out the second I-steel 12 being cut through and supporting block 13；Then diagonal brace is detached, and cut off bullet with the first I-steel 2
Spring takes out the first I-steel 2 from embedded frame.Due to the presence of diagonal brace 3 so that the second I-steel 12 and supporting block 13 are born
Power be only that fraction superstructure generates the power that the dead weight of power and the first I-steel 2 generates, so when embedded frame is in coagulation
When deforming under the effects that soil is crept and generating pressure to the first I-steel, a part of pressure is alleviated by spring 14, and second
I-steel 12 deforms and oppresses supporting block 13, can be into one when supporting block 13 is using wooden structure softer when quality
The compensator or trimmer pressure of step, and ensure structure safety；When needing to remove, the web of the second I-steel 12 is cut off, pressure is whole at this time
Spring 14 is transferred to, and the second I-steel 12 can cause the edge of a wing of the second I-steel 12 to be detached from the first I-steel with web cut-out
2, the second I-steel 12 and supporting block 13 are taken out to the space in release embedded frame 11 at this time, can cause the first I-steel 2
It will not can not take out since embedded frame deforms, so that the first I-steel 2 takes out more safe ready, not need to the
One I-steel 2 is cut off so that the first I-steel 2 may be reused, and be greatly saved cost.
Embodiment 5
The present embodiment is further comprising the steps of on the basis of embodiment 4：S7：Coagulation is carried out to 11 inside of embedded frame
Soil filling.The groove 21 that the bottom surface setting of first I-steel 2 and the edge of a wing of the second I-steel 12 match；The groove
Setting idler wheel 22 in 21.Step S3 includes following sub-step：The edge of a wing of second I-steel 12 is stretched into inside groove 21, and by
The edge of a wing of two I-steel 12 is contacted with idler wheel 22.
When the present embodiment is implemented, when the first 2 stress of I-steel, since wedge block 5 and supporting rack 7 act on the first I-shaped
2 surface of steel, so the first I-steel 2 is not only subjected only to vertical direction pressure, it is also necessary to bear from 7 inhomogeneous deformation of supporting rack
And the horizontal shear that wedge block 5 generates, and the first I-steel 2 is fixed at both ends by diagonal brace 3, and middle part is squeezed by embedded frame 11
When, very strong internal stress can be generated, the present invention passes through the design of groove 21 and idler wheel 22 so that the deformation that horizontal shear generates can be with
Uniformly shared to whole I-steel, avoid generating stress raisers, improve safety；Simultaneously in dismounting, second
Even if I-steel 12 cuts off web sometimes also due to frictional force is not easily taken out, idler wheel 22 of the invention can effectively alleviate the
Frictional force between one I-steel 2 and the second I-steel 12 so that taking-up is more prone to.
Above-described specific embodiment has carried out the purpose of the present invention, technical solution and advantageous effect further
It is described in detail, it should be understood that the foregoing is merely the specific embodiment of the present invention, is not intended to limit the present invention
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of twin legged thin wall pier I-steel bolster convenient for removing, which is characterized in that including bridge pier (1), the first I-steel
(2), diagonal brace (3) and built-in fitting (4)；Setting extends transversely through the embedded hole of bridge pier, first I-steel on the bridge pier (1)
(2) across embedded hole；The built-in fitting (4) is set on the wall surface of bridge pier (1), and one end of diagonal brace (3) connects the first I-shaped
Steel (2), other end connection built-in fitting (4)；Setting embedded frame (11), the second I-steel (12), supporting block in the embedded hole
(13) and spring (14)；The embedded frame (11) is set on the inner wall of embedded hole, and the first I-steel (2), the second I-shaped
Steel (12) and supporting block (13) are from top to bottom set gradually in embedded frame (11)；The edge of a wing water of first I-steel (2)
Flat setting, the edge of a wing of second I-steel (12) are vertically arranged, and the supporting block (13) is set to the interior of embedded frame (11)
Bottom surface；The bottom surface of one end connection the first I-steel (2) lower flange of the spring (14), other end connection embedded frame (11)
Inner bottom surface.
2. a kind of twin legged thin wall pier I-steel bolster convenient for removing according to claim 1, which is characterized in that further include
Top bolster, the top bolster include wedge block (5), template (6), supporting rack (7) and operating platform (8)；The wedge block
(5) it is fixedly installed on the upper surface of the first I-steel (2)；The template (6) is fixedly installed on wedge block by supporting rack (7)
(5) inclined-plane or/and the upper surface of the first I-steel (2)；The operating platform (8) is fixedly installed on by supporting rack (7)
The upper surface of one I-steel (2).
3. a kind of twin legged thin wall pier I-steel bolster convenient for removing according to claim 1, which is characterized in that described the
The groove (21) that the bottom surface setting of one I-steel (2) and the edge of a wing of the second I-steel (12) match；In the groove (21)
Idler wheel (22) is set；Groove (21) inside, and the edge of a wing of the second I-steel (12) are stretched into the edge of a wing of second I-steel (12)
It is contacted with idler wheel (22).
4. a kind of twin legged thin wall pier I-steel bolster convenient for removing according to claim 3, which is characterized in that described the
One I-steel (2) is using I45b I-steel.
5. a kind of twin legged thin wall pier I-steel bolster convenient for removing according to claim 3, which is characterized in that described the
Two I-steel (12) are using I14 I-steel.
A kind of 6. twin legged thin wall pier I-steel bolster convenient for removing according to claim 3, which is characterized in that the branch
Bracer (13) is using wood materials.
7. use the method for twin legged thin wall pier I-steel bolster described in claim 1~6 any one, which is characterized in that including
Following steps：
S1：After the completion of Thin-Wall Piers main reinforcement is set up, embedded frame (11) and built-in fitting (4) are fixedly connected on Thin-Wall Piers main reinforcement simultaneously
Completion pours；
S2：One end of diagonal brace (3) is welded in built-in fitting (4), by the first I-steel (2) across embedded frame (11) and by diagonal brace
(3) the other end is welded in the first I-steel (2)；
S3：Set gradually the second I-steel (12) and supporting block (13) in the first I-steel (2) bottom, and by the one of spring (14)
End is welded in the bottom surface of the first I-steel (2) lower flange, and the other end is welded in the inner bottom surface of embedded frame (11)；
S4：Top bolster is set up on the top flange of the first I-steel (2), and completes superstructure and pours；
S5：When superstructure concrete strength reaches threshold value, top bolster is removed；
S6：The web of the second I-steel (12) is cut along the second I-steel (12) y direction using acetylene cutting machine, and from
The second I-steel (12) being cut through and supporting block (13) are taken out in embedded frame (11)；Then by diagonal brace (3) and the first work
Word steel (2) detaches, and cuts off spring (14), and the first I-steel (2) is taken out from embedded frame (11).
8. a kind of twin legged thin wall pier I-steel bolster application method convenient for removing according to claim 7, feature exist
In further comprising the steps of：
S7：To carrying out Concrete Filled inside embedded frame (11).
9. a kind of twin legged thin wall pier I-steel bolster application method convenient for removing according to claim 7, feature exist
In the bottom surface of first I-steel (2) sets the groove (21) that the edge of a wing with the second I-steel (12) matches；It is described recessed
Setting idler wheel (22) in slot (21).
10. a kind of twin legged thin wall pier I-steel bolster application method convenient for removing according to claim 9, feature exist
In step S3 includes following sub-step：
Groove (21) inside is stretched into, and the edge of a wing of the second I-steel (12) is contacted with idler wheel in the edge of a wing of second I-steel (12)
(22)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245124.4A CN108221705B (en) | 2018-03-23 | 2018-03-23 | Double-limb thin-wall pier I-steel support convenient to disassemble and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245124.4A CN108221705B (en) | 2018-03-23 | 2018-03-23 | Double-limb thin-wall pier I-steel support convenient to disassemble and use method |
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| CN108221705A true CN108221705A (en) | 2018-06-29 |
| CN108221705B CN108221705B (en) | 2023-06-27 |
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| CN201810245124.4A Active CN108221705B (en) | 2018-03-23 | 2018-03-23 | Double-limb thin-wall pier I-steel support convenient to disassemble and use method |
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|---|---|
| CN108221705B (en) | 2023-06-27 |
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