CN104612416B - A kind of off-loadable resilient supporting unit and the method utilizing its temporary support load - Google Patents
A kind of off-loadable resilient supporting unit and the method utilizing its temporary support load Download PDFInfo
- Publication number
- CN104612416B CN104612416B CN201410853761.1A CN201410853761A CN104612416B CN 104612416 B CN104612416 B CN 104612416B CN 201410853761 A CN201410853761 A CN 201410853761A CN 104612416 B CN104612416 B CN 104612416B
- Authority
- CN
- China
- Prior art keywords
- plate
- loadable
- supporting unit
- sand
- resilient supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A kind of off-loadable resilient supporting unit of the present invention and the method utilizing its temporary support load, relate to architectural engineering construction technique field.Support force cannot be limited for conventional rigid temporary support component, poor stability during unloading and use hydraulic jack as bearing, the problem that operation is complicated, maintenance cost is high.The present invention include unloading assembly and sheathed in the inner and make the elastic support of longitudinal sliding motion along inwall, setting mandrel in inner sleeve, mandrel bottom passes through base plate nut check, and mandrel top connects upper cover plate, sheathed butterfly spring group on mandrel, outer sleeve is sheathed on outside inner sleeve and makees longitudinal sliding motion along it；Unloading assembly includes that bottom is connected with the sand cylinder of back cover plate, and the dividing plate being located in sand cylinder, base plate and dividing plate and sand cylinder minor diameter fit and can be along sand cylinder inwall longitudinal sliding motion, it is inoculated with sand in the cavity two of sand cylinder, and sand cylinder bottom is provided with sediment outflow pipe, during unloading, unclamp the sealing bolt of sediment outflow pipe, discharge the sand in cavity two, make support means height reduction, thus realize unloading purpose.
Description
Technical field
The present invention relates to civil construction project technical field of construction, particularly to one off-loadable resilient support dress
Put and utilize the method for its temporary support load.
Background technology
Construction steel structure especially large-span steel, comes in temporary support frequently with steel tube component when construction
Portion's steel construction, forms after entirety until steel superstructure, uses gas cutting mode to cut off steel pipe, so that originally high
Degree reduces, thus reaches the purpose of unloading, then removes these temporary support components.In work progress, top
The power that steel construction passes to these temporary support components is very big, simultaneously this discharging method poor stability.On ground
When building large-span steel above iron or other underground structures, the excessive possibility of the power on temporary support component
Affect the safety of underground structure.In this case, more employing great tonnage hydraulic jack is used for temporary support
Load, such that it is able to the load that control is delivered on underground structure.But great tonnage hydraulic jack price is high,
And it sinks substantially after supporting the long period, thus affecting the construction of steel construction, serious is likely to result in peace
Full accident.
Therefore, how to design a kind of load big, and unload convenient temporary support structure and become this area skill
The problem that art personnel constantly explore.
Content of the invention
Support force cannot be limited for conventional rigid temporary support component, poor stability during unloading, and use liquid
Pressure jack, as bearing, the problem that operation is complicated, maintenance cost is high, it is an object of the invention to provide one
Off-loadable resilient supporting unit and the method utilizing its temporary support load, utilize the support being provided with butterfly spring group
The load of device transmission superstructure, the load of control temporary support, protection its underpart hypogee structure
Safety, and remove support means by the husky method of leakage, and be unloaded to load on permanent structure.
The present invention solves the off-loadable resilient supporting unit of one that its technical problem is used, comprising: by up to
The elastic support of lower setting and unloading assembly, described elastic support is sheathed in described unloading assembly, and can
Make longitudinally opposite slip along described unloading assembly inwall；Described elastic support includes inner sleeve, is fixed in institute
State the base plate bottom inner sleeve, the mandrel being vertically arranged in described inner sleeve, and be fixed in described mandrel top
The upper cover plate in portion, the bottom of described mandrel passes through the centre bore of described base plate and by nut check, described upper cover
Plate is formed by connecting by end plate and outer sleeve, and it is outside and can be along described that described outer sleeve is set in described inner sleeve
The longitudinally opposed slip of inner sleeve, described upper cover plate, inner sleeve and described base plate collectively form a Guan Bi cavity one,
The butterfly spring group being arranged in described cavity one is sheathed on described mandrel, the top of described butterfly spring group with described on
The end plate of cover plate offsets；Described unloading assembly includes that bottom is connected with the sand cylinder of back cover plate, and is arranged at described
Dividing plate in sand cylinder, described dividing plate is connected with the bed bolt of described elastic support by link, described sand
The top bolt of cylinder is connected with annular end plate, and the base plate of described elastic support and the dividing plate of described sand cylinder are all provided with
It is placed in described sand cylinder and the minor diameter fit with sand cylinder, the external diameter of described elastic support inner sleeve and described annulus
The centre bore of shape end plate matches so that described inner sleeve can drive described dividing plate to indulge along described sand cylinder inwall
Sliding to relative, described dividing plate, back cover plate and described sand cylinder constitute a Guan Bi cavity two, described cavity dual-purpose
In filling sand, the bottom of described sand cylinder sidewall is provided with at least one sediment outflow pipe connecting with described cavity two.
Preferably, the outer wall of described inner sleeve arranges overload mark line, or installs pressure on described inner sleeve
Force snesor, and make described pressure sensor be connected with warning device signal.
Preferably, also including the bearing plate being arranged on described elastic support end plate, described bearing plate is by bakelite
Plate is made, and is threaded on described end plate.
Preferably, described dividing plate sidewall is provided with annular groove, is provided with O RunddichtringO in described annular groove.
Preferably, the bottom of described sand drum outer wall is connected with the base-plate of bolt hole, described base-plate
And it is connected with vertical ribbed stiffener between described sediment outflow pipe.
Preferably, described sediment outflow pipe is obliquely installed in the outer wall of described sand cylinder, the free end of described sediment outflow pipe to
Tilting near the direction of described base-plate, the bolt thread that one end is conical is connected to described sediment outflow pipe
Free end.
Preferably, what the bottom of described sand cylinder internal cavity two was provided with taper type leads sand plate, described leads sand plate and institute
Stating the relative side of sediment outflow pipe is inclined plane, and the described width leading sand plate inclined plane is 100mm～150mm,
Being highly 80mm～120mm, its tilt angle alpha with respect to the horizontal plane is 30 °～60 °.
Preferably, it also includes the butterfly spring abutment of cylinder, and described butterfly spring abutment is sheathed on described mandrel, and position
Between described butterfly spring group and described base plate.
Preferably, the outer wall of described outer sleeve is also evenly equipped with some lugs for lifting.
Preferably, described butterfly spring group is made up of at least two butterfly spring unit, adjacent two described butterfly spring unit phases
To setting, and each butterfly spring unit is formed by least one butterfly spring is stacked.
In addition, present invention also offers a kind of method of off-loadable resilient supporting unit temporary support load, step
Rapid as follows:
Step one: calculate the maximum load and maximum displacement determining that support node bears, need according to design
Support stiffness, bearing capacity and deformation determine specification, quantity and the stacked system of butterfly spring, and assembling is described
Off-loadable resilient supporting unit, is filled in described cavity two by the bolt hole on back cover plate bottom described sand cylinder
Enter sand body, and tightened to close described bolt hole by silently bolt, carry out rotation after precommpression to described butterfly spring group
The nut of tight described mandrel bottom；
Step 2: be connected to described off-loadable resilient supporting unit on support node, makes load action in institute
State off-loadable resilient supporting unit；
Step 2: when need to unload, unclamps the bolt on described sediment outflow pipe, discharges the sand in described sand cylinder, makes
Described off-loadable resilient supporting unit relative altitude reduces, thus removes described off-loadable resilient supporting unit,
And replaced by permanent structure.
Preferably, described step 2 also includes, monitors the described overload mark on described elastic support inner sleeve
Line, or the signal being spread out of by the described pressure sensor being fixed on described inner sleeve judges described detachable
Carry whether resilient supporting unit overloads.
Effect of the invention is that:
First, the off-loadable resilient supporting unit of invention is made up of elastic support and unloading assembly, elastic support energy
Enough along the unloading longitudinally opposed slip of assembly, during due to assembling, precommpression is carried out to butterfly spring group, worked as load action
When elastic support top, when butterfly spring group starts stress less than setting numerical value, elastic support keeps rigidity.This
When whole elastic support be rigid support, it can be ensured that steel superstructure construction when component not downwarp, it is ensured that steel
Structure construction quality.When load is more than when setting numerical value, elastic support enters elastic stage, and elastic support is opened
Beginning to produce displacement, now the permanent steel construction in top has formed entirety, and permanent steel construction self starts to bear part
Load, thus limit load on elastic support, protect the safety of underground structure.Fill when support need to be unloaded
When putting, only need to open the outlet of sediment outflow pipe, make sand body flow out sand cylinder, the height of support means can be reduced,
Thus reach the purpose of unloading, the off-loadable resilient supporting unit simple in construction of the present invention, it is easy to and operation, unload
Carried convenient and to structure not damaged, can Reusability, reduce construction cost.
2nd, the off-loadable resilient supporting unit of invention is provided with overload at the outer wall of the inner sleeve making longitudinal sliding motion
Mark line or pressure sensor, it is simple to workmen understands the working condition of support means in time, can control
Overload limit load increase, thus ensure that construction safety, the present invention is especially suitable for large-tonnage object
Temporary support, need payload overload control and the occasion unloading voluntarily.
3rd, the present invention utilizes the method for off-loadable resilient supporting unit temporary support load, first at sand cylinder
Pour into sand in cavity two and close, during assembling, precommpression being carried out to butterfly spring group, when acting on elastic support end face
Load more than set numerical value when, elastic support enter elastic stage, elastic support start produce displacement, this
When top permanent steel construction formed entirety, permanent steel construction self starts to bear fractional load, thus limits
Load on elastic support, protects the safety of underground structure；When support means need to be unloaded, by unclamping
Bolt on sediment outflow pipe makes sand body flow out so that the height reduction of support means, thus reaches to unload purpose,
And replaced by permanent structure.Use the method for temporary support load of the present invention, realize propping up by way of leakage sand
The unloading of support arrangement, operation is simple, and can Reusability, safe operation process is reliable, improves work effect
Rate.
Brief description
Fig. 1 is the structural representation of one embodiment of the invention；
Fig. 2 is the A-A profile of Fig. 1.
Detailed description of the invention
The off-loadable resilient supporting unit of the one present invention being proposed below in conjunction with the drawings and specific embodiments and profit
It is described in further detail by the method for its temporary support load.According to description below and claims,
Advantages and features of the invention will be apparent from.Hereinafter cited embodiment will be combined accompanying drawing, describe in detail
The technology contents of the present invention and feature.Need to additionally illustrate, accompanying drawing all uses the form simplifying very much and all
Use non-ratio accurately, only in order to purpose convenient, the aid illustration embodiment of the present invention lucidly.For chatting
State conveniently, described below " on ", the upper and lower direction of D score and accompanying drawing consistent, but this can not become
Restriction for technical solution of the present invention.
Embodiment one: combining Fig. 1 and Fig. 2 and the off-loadable resilient supporting unit 100 of the present invention being described, it includes
The elastic support 20 from top to bottom arranging and unloading assembly 30, wherein, elastic support 20 is sheathed on unloading group
In part 30, and longitudinally opposite slip can be made along unloading assembly 30 inwall；
Elastic support 20 includes that the 22nd, the base plate that the 21st, inner sleeve is fixed in bottom inner sleeve 21 is vertically arranged to
Mandrel 23 in inner sleeve 21, and it is fixed in the upper cover plate at mandrel 23 top.The bottom of mandrel 23 passes through the end
The centre bore of plate 22 is simultaneously locked by nut 23'.Upper cover plate is formed by connecting by end plate 24 and outer sleeve 25, outward
It is outside and can be along the longitudinally opposed slip of inner sleeve 21 that sleeve 25 is set in inner sleeve 21.Upper cover plate, inner sleeve
Cylinder 21 and base plate 22 collectively form a Guan Bi cavity 1, and the butterfly spring group 27 being arranged in cavity 1 is overlapped
It is located on mandrel 23.The top of butterfly spring group 27 offsets with the end plate 24 of upper cover plate so that the end plate of upper cover plate
Keep certain interval between 24 and inner sleeve 21, after elastic support 20 pressurized, be outer sleeve 25 slide downward
Certain flexible surplus is provided.
Unloading assembly 30 includes that bottom is connected with the sand cylinder 31 of back cover plate 32, and be arranged in sand cylinder 31 every
Plate 33.Dividing plate 33 is connected with base plate 22 bolt of elastic support 20 by link 34.The top of sand cylinder 31
Portion's bolt is connected with annular end plate 35, and the base plate 22 of elastic support 20 and the dividing plate 33 of sand cylinder 31 are all provided with
In being placed in sand cylinder 31 and the minor diameter fit with sand cylinder 31, the external diameter of elastic support 20 inner sleeve 21 and annulus
The centre bore of shape end plate 35 matches so that inner sleeve 21 can drive dividing plate 33 to indulge along sand cylinder 31 inwall
Slide to relative.The setting of annular end plate 35, it can be avoided that base plate 22 and dividing plate 33 skid off sand cylinder 31.
Dividing plate the 33rd, back cover plate 32 and sand cylinder 31 constitute a Guan Bi cavity 2 36, and cavity 2 36 is used for filling sand (figure
Not shown in).In the present embodiment, uniform four sediment outflows connecting with cavity 2 36 in bottom of sand cylinder 31 sidewall
Pipe 37, certainly, the quantity of sediment outflow pipe 37 is adjusted also dependent on design needs.The present invention is by unclamping row
Sandpipe 37, makes sand flow shake out cylinder 31 so that off-loadable resilient supporting unit 100 height fall under pressure
Low, thus reach the purpose of unloading, the present embodiment off-loadable resilient supporting unit 100 specification has two kinds, point
Wei not carry 800000kg, maximum displacement 16mm；And carrying 1000000kg, maximum displacement 24mm.
The off-loadable resilient supporting unit 100 of the present invention is made up of elastic support 20 and unloading assembly 30, bullet
Property support 20 can along unloading the longitudinally opposed slip of assembly 30, due to assembling when butterfly spring group 27 has been carried out pre-
Compression, when load action is at elastic support 20 top, when butterfly spring group 27 starts stress less than setting numerical value,
Elastic support 20 keeps rigidity.Now whole elastic support 20 is rigid support, it can be ensured that upper steel is tied
Component not downwarp during structure construction, it is ensured that Construction of Steel Structure quality.When load is more than when setting numerical value, elasticity is propped up
Frame 20 enters elastic stage, and elastic support 20 starts to produce displacement, and now the permanent steel construction in top is formed
Overall, permanent steel construction self starts to bear fractional load, thus limits load on elastic support 20, protects
Protect the safety of underground structure.When support means 100 need to be unloaded, the outlet of sediment outflow pipe 37 only need to be opened,
Make sand body flow out sand cylinder 31, the height of support means 100 can be reduced, thus reach the purpose of unloading, this
Off-loadable resilient supporting unit 100 simple in construction of invention, it is easy to operation, unloads carried convenient and lossless to structure
Wound, can Reusability, reduce construction cost.
Cause security incident for avoiding off-loadable resilient supporting unit 100 to overload, can be outside inner sleeve 21
Wall arranges overload mark line (not shown), in order to monitor the generation of overload condition；Preferably, it is possible to
Pressure sensor (not shown) is installed on inner sleeve 21, and makes pressure sensor and warning device signal
Connecting, when overload condition occurs, warning device can send alarm signal, it is simple to workmen and time control
The increase of load processed.
Further, off-loadable resilient supporting unit 100 also includes being arranged on elastic support 20 end plate 24
Bearing plate 28, bearing plate 28 is made up of bakelite plate, and is threaded on end plate 24.When steel construction lotus
When load is placed on the top of off-loadable resilient supporting unit 100, the bearing plate 28 of bakelite plate material can discharge
The horizontal force of steel construction.Bakelite plate full name is epoxy novolac laminated paper board, and it is to use colory bleaching
The long-pending paper of wood and lint paper are as reinforcement, and are reacted, with high-purity, fully synthetic petrochemical material, the phenol made
Urea formaldehyde is fabricated by as resin binder.
With continued reference to Fig. 1, for making off-loadable resilient supporting unit 100 can be stablely supported in external structure,
The bottom of sand cylinder 31 outer wall connects the base-plate 38 being evenly equipped with bolt hole, can be by off-loadable resilient support dress
Put 100 to be bolted in external structure.For strengthening the stability of structure, base-plate 38 and sediment outflow pipe 37
Between be connected with vertical ribbed stiffener.
It it is also preferred that the left dividing plate 33 sidewall is provided with annular groove, in annular groove, is provided with O RunddichtringO 33', O
The setting of RunddichtringO 33' makes dividing plate 33 more tight with the laminating of sand cylinder 31 inwall, prevents cavity 2 36
Interior sand leaks outside under pressure.
With continued reference to Fig. 1, sediment outflow pipe 37 is obliquely installed in sand cylinder 31 outer wall, one end of sediment outflow pipe 37 and sand
Cylinder 31 communicates, and its other end (i.e. free end) tilts near the direction of base-plate 38, and one end is circle
The bolt 40 of taper is threaded in the free end of sediment outflow pipe 37.During sand body stress in sand cylinder 31, four
It is tightened in the free end of sediment outflow pipe 37 in conical bolt 40, stop sand body landing, during unloading, unclamp
One or more bolts 40, sand body then flows outwardly along sediment outflow pipe 37 so that elastic support 20 sinks, can
Unloading resilient supporting unit 100 height declines, thus realizes unloading.Recycling for the ease of sand body,
Sand body retracting device can be set in sediment outflow pipe 37 bottom.The sand using in the present embodiment is iron sand, certainly, also
Other similar sand can be used, be not construed as limiting herein.
More preferably, the bottom of sand cylinder 31 internal cavity 2 36 be provided with approximation taper type lead sand plate 39, lead sand plate
39 sides relative with sediment outflow pipe 37 are inclined plane, lead the width of sand plate 39 inclined plane be 100mm～
150mm, height is 80mm～120mm, and its tilt angle alpha with respect to the horizontal plane is 30 °～60 °.
In the present embodiment, the width of the inclined plane leading sand plate 39 is 120mm, height be 110mm, its relative to
The tilt angle alpha of horizontal plane is 45 °.The setting leading sand plate 39 is more conducive to sand body slide downward, to accelerate to unload
Carry speed.
Off-loadable resilient supporting unit 100 also includes the butterfly spring abutment 29 of cylinder, and butterfly spring abutment 29 is sheathed on mandrel
It on 23, and is positioned between butterfly spring group 27 and base plate 22.Butterfly spring abutment 29 and end plate 24 play fixing butterfly jointly
The effect of spring group 27.More preferably, the outer wall of outer sleeve 25 is also evenly equipped with some lug 25' for lifting.
In the present embodiment, after calculating the maximum load determining support node and maximum displacement, it is suitable to select
Butterfly spring specification, quantity and stacked system, owing to load is relatively big, butterfly spring group 27 has selected 12
Butterfly spring, a piece of butterfly spring stress 42000kg, displacement 8mm, 3 is a butterfly spring unit, totally 4
Individual butterfly spring unit, adjacent two butterfly spring unit are oppositely arranged, and each butterfly spring unit is formed by 3 butterfly springs are stacked,
Its stress is 3 butterfly spring stress sums, uses 4 butterfly spring unit to be to increase displacement, being one
3 times of individual element displacement.
Embodiment two: combine Fig. 1 and Fig. 2 explanation and utilize the off-loadable resilient supporting unit of the present invention to prop up temporarily
The method of support load, specifically comprises the following steps that
S101: first calculate the maximum load and maximum displacement determining that support node bears, according to design needs
Support stiffness, bearing capacity and deformation determine specification, quantity and the stacked system of butterfly spring, assembling can
Unloading resilient supporting unit 100, by the bolt hole 32' on back cover plate 32 bottom sand cylinder 31 to cavity 2 36
Inside pour into sand body, and tighten to close above-mentioned bolt hole with silently bolt, then, butterfly spring group 27 is carried out pre-
Screwing the nut 23' of mandrel 23 bottom after compression, the purpose of precompressed butterfly spring group 27 is to allow butterfly spring group 27
Enter duty (just can reach duty after having to apply a point pressure to butterfly spring group 27)；
S102: be connected to off-loadable resilient supporting unit 100 bolt on the strong point, makes load action in can
On unloading resilient supporting unit 100, start stress less than off-loadable resilient supporting unit 100 during specified value
Keeping rigidity, when load is more than setting, it is in elastic stage；
S103: when need to unload, unclamps the bolt 40 on sediment outflow pipe 37, discharges the iron sand in sand cylinder 31, makes
Off-loadable resilient supporting unit 100 relative altitude reduces, thus removes off-loadable resilient supporting unit 100, and
Replaced by permanent structure.
The present invention utilizes the method for off-loadable resilient supporting unit 100 temporary support load, first at sand cylinder 31
Cavity 2 36 in pour into sand and close, during assembling, precommpression is carried out to butterfly spring group 27, when acting on elasticity
The load of support 20 end face is more than when setting numerical value, and elastic support 20 enters elastic stage, elastic support 20
Starting to produce displacement, now the permanent steel construction in top has formed entirety, and permanent steel construction self starts receiving portion
Divide load, thus limit load on elastic support 20, protect the safety of underground structure；Prop up when unloading
During support arrangement 100, sand body is made to flow out by unclamping the bolt 40 on sediment outflow pipe 37 so that support means 100
Height reduction, thus reach to unload purpose, and replaced by permanent structure.Use temporary support lotus of the present invention
The method carrying, realizes the unloading of support means 100 by way of leakage sand, and operation is simple, and can repeatedly make
With safe operation process is reliable, improves operating efficiency.
As more preferably embodiment, above-mentioned steps S102 also includes, monitoring elastic support 20 inner sleeve 21
Overload mark line, or the signal being spread out of by the pressure sensor being fixed on inner sleeve 21 judges off-loadable
Whether resilient supporting unit 100 overloads, it is simple to the increase of the timely control load of workmen.
Foregoing description is only the description to present pre-ferred embodiments, not any restriction to the scope of the invention,
Any change that the those of ordinary skill in field of the present invention does according to the disclosure above content, modification, belong to power
The protection domain of profit claim.
Claims (12)
1. an off-loadable resilient supporting unit, it is characterised in that include:
The elastic support from top to bottom arranging and unloading assembly, described elastic support is sheathed on described unloading assembly
In, and longitudinally opposite slip can be made along described unloading assembly inwall；
Described elastic support includes inner sleeve, is fixed in the base plate bottom described inner sleeve, is vertically arranged to institute
Stating the mandrel in inner sleeve, and being fixed in the upper cover plate at described mandrel top, the bottom of described mandrel passes through institute
Stating the centre bore of base plate and by nut check, described upper cover plate is formed by connecting by end plate and outer sleeve, described outside
Sleeve be set in described inner sleeve outside and can along the longitudinally opposed slip of described inner sleeve, described upper cover plate,
Inner sleeve and described base plate collectively form a Guan Bi cavity one, and the butterfly spring group being arranged in described cavity one is sheathed
On described mandrel, the top of described butterfly spring group offsets with the end plate of described upper cover plate；
Described unloading assembly includes that bottom is connected with the sand cylinder of back cover plate, and is arranged at the dividing plate in described sand cylinder,
Described dividing plate is connected with the bed bolt of described elastic support by link, and the top bolt of described sand cylinder is even
Being connected to annular end plate, the base plate of described elastic support and the dividing plate of described sand cylinder may be contained within described sand cylinder
And the minor diameter fit with sand cylinder, the centre bore of the external diameter of described elastic support inner sleeve and described annular end plate
Match so that described inner sleeve can drive described dividing plate along the longitudinally opposed slip of described sand cylinder inwall, institute
Stating dividing plate, back cover plate and described sand cylinder and constituting a Guan Bi cavity two, described cavity two is used for filling sand, described
The bottom of sand cylinder sidewall is provided with at least one sediment outflow pipe connecting with described cavity two.
2. off-loadable resilient supporting unit according to claim 1, it is characterised in that: outside described inner sleeve
Wall arranges overload mark line, or installs pressure sensor on described inner sleeve, and makes described pressure sensing
Device is connected with warning device signal.
3. off-loadable resilient supporting unit according to claim 1, it is characterised in that: also include being arranged at institute
Stating the bearing plate on elastic support end plate, described bearing plate is made up of bakelite plate, and is threaded in described end
On plate.
4. off-loadable resilient supporting unit according to claim 1, it is characterised in that: described dividing plate sidewall sets
There is annular groove, in described annular groove, be provided with O RunddichtringO.
5. off-loadable resilient supporting unit according to claim 1, it is characterised in that: described sand drum outer wall
Bottom is connected with the base-plate of bolt hole, is connected with vertical between described base-plate and described sediment outflow pipe
Ribbed stiffener.
6. off-loadable resilient supporting unit according to claim 5, it is characterised in that: described sediment outflow pipe tilts
Being arranged at the outer wall of described sand cylinder, the free end of described sediment outflow pipe tilts near the direction of described base-plate,
The bolt thread that one end is conical is connected to the free end of described sediment outflow pipe.
7. off-loadable resilient supporting unit according to claim 1, it is characterised in that: described sand cylinder internal cavity
What the bottom of two was provided with taper type leads sand plate, and the described sand plate side relative with described sediment outflow pipe of leading is inclined plane,
The described width leading sand plate inclined plane is 100mm～150mm, and height is 80mm～120mm, and it is relative
It it is 30 °～60 ° in the tilt angle alpha of horizontal plane.
8. off-loadable resilient supporting unit according to claim 1, it is characterised in that: it also includes cylinder
Butterfly spring abutment, described butterfly spring abutment is sheathed on described mandrel, and is positioned between described butterfly spring group and described base plate.
9. off-loadable resilient supporting unit according to claim 1, it is characterised in that: outside described outer sleeve
Wall is also evenly equipped with some lugs for lifting.
10. the off-loadable resilient supporting unit according to any one of claim 1 to 9, it is characterised in that: institute
Stating butterfly spring group to be made up of at least two butterfly spring unit, adjacent two described butterfly spring unit are oppositely arranged, and each
Butterfly spring unit is formed by least one butterfly spring is stacked.
11. 1 kinds of off-loadable resilient supporting unit temporary support lotuses utilizing as described in any one of claim 1 to 10
The method carrying, step is as follows:
Step one: calculate the maximum load and maximum displacement determining that support node bears, need according to design
Support stiffness, bearing capacity and deformation determine specification, quantity and the stacked system of butterfly spring, and assembling is described
Off-loadable resilient supporting unit, is filled in described cavity two by the bolt hole on back cover plate bottom described sand cylinder
Enter sand body, and tightened to close described bolt hole by silently bolt, carry out rotation after precommpression to described butterfly spring group
The nut of tight described mandrel bottom；
Step 2: be connected to described off-loadable resilient supporting unit on support node, makes load action in institute
State off-loadable resilient supporting unit；
Step 2: when need to unload, unclamps the bolt on described sediment outflow pipe, discharges the sand in described sand cylinder, makes
Described off-loadable resilient supporting unit relative altitude reduces, thus removes described off-loadable resilient supporting unit,
And replaced by permanent structure.
The method of 12. temporary support loads according to claim 11, it is characterised in that: described step 2 is also
Including, the outer wall of described inner sleeve arranges overload mark line, or installs pressure sensing on described inner sleeve
Device, and make described pressure sensor be connected with warning device signal, monitor on described elastic support inner sleeve
Described overload mark line, or the signal being spread out of by the described pressure sensor being fixed on described inner sleeve
Judge whether described off-loadable resilient supporting unit overloads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853761.1A CN104612416B (en) | 2014-12-31 | 2014-12-31 | A kind of off-loadable resilient supporting unit and the method utilizing its temporary support load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853761.1A CN104612416B (en) | 2014-12-31 | 2014-12-31 | A kind of off-loadable resilient supporting unit and the method utilizing its temporary support load |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104612416A CN104612416A (en) | 2015-05-13 |
| CN104612416B true CN104612416B (en) | 2016-10-05 |
Family
ID=53147043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410853761.1A Active CN104612416B (en) | 2014-12-31 | 2014-12-31 | A kind of off-loadable resilient supporting unit and the method utilizing its temporary support load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104612416B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567556A (en) * | 2016-11-03 | 2017-04-19 | 上海建工七建集团有限公司 | Support system |
| CN112813836A (en) * | 2020-12-31 | 2021-05-18 | 中铁二十局集团第六工程有限公司 | Cast-in-place box girder construction method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3739754A1 (en) * | 1987-11-24 | 1989-06-08 | Mueller & Baum | Vertically adjustable support for a floor shuttering |
| CN201095873Y (en) * | 2007-08-14 | 2008-08-06 | 中国化学工程第三建设公司 | Load bearing steel grit box easy for unloading |
| CN201902027U (en) * | 2010-11-11 | 2011-07-20 | 上海市机械施工有限公司 | Unloading support seat |
| CN102425313B (en) * | 2011-12-21 | 2013-06-26 | 中铁建工集团有限公司 | Carriage stepped unloading method after expanding large-span truss structure |
| CN102913001B (en) * | 2012-10-18 | 2015-03-11 | 东南大学 | Supporting mechanism for unloading building structural member and use method thereof |
| CN203247869U (en) * | 2012-11-14 | 2013-10-23 | 中冶天工集团有限公司 | Dismounting device used for building structure |
| CN103835527B (en) * | 2014-03-18 | 2016-05-18 | 中天建设集团有限公司 | A kind of dismountable supporting device |
| CN204456947U (en) * | 2014-12-31 | 2015-07-08 | 上海市机械施工集团有限公司 | A kind of resilient supporting unit being convenient to unload |
-
2014
- 2014-12-31 CN CN201410853761.1A patent/CN104612416B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104612416A (en) | 2015-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104612416B (en) | A kind of off-loadable resilient supporting unit and the method utilizing its temporary support load | |
| CN103572763B (en) | Large-span steel supports pattern foundation pit supporting structure Demolition Construction method | |
| CN204589822U (en) | The two cantilever bent cap anchor ear Construction Support system of a kind of solely post | |
| CN106638730A (en) | Load box with piston state extrusion resetting capability for pile foundation self-balancing test | |
| CN208502206U (en) | Assembling the shaped steel suspension scaffolding | |
| CN205857015U (en) | A kind of viaduct pier anti-settling bracing means | |
| CN204456946U (en) | A kind of elastic support of temporary support load | |
| CN207568156U (en) | Steel platform supports bracket | |
| CN104594656B (en) | A kind of elastic support and the method utilizing its temporary support load | |
| CN207192575U (en) | A kind of crane hanging basket | |
| CN204456947U (en) | A kind of resilient supporting unit being convenient to unload | |
| CN104894981B (en) | Reaction frame pre-pressing system for bracket of cantilever section | |
| CN208950360U (en) | A kind of auxiliary support mechanism of building structure strengthening | |
| CN204418646U (en) | A kind of detachable steel pipe extension device | |
| CN106012875A (en) | Local undamaged jacking replacement method for supports of plate girder bridge | |
| CN104612278B (en) | Three core plate in parallel energy dissipation type buckling-proof support | |
| CN207090912U (en) | A kind of hydraulic jacking device being flip-chip mounted for reducer among medium-and-large-sized case tank | |
| CN207525625U (en) | Sandbox preformer | |
| CN206157790U (en) | CFG stake single pile static test pile head protection device | |
| CN101818576B (en) | Safe escape device for ultra-high-rise building core tube construction | |
| CN207032013U (en) | A kind of bridge pier bracing means | |
| CN211199936U (en) | Steel rail construction device is unloaded to artifical scattered shield well that spreads of subway track | |
| CN207878428U (en) | A kind of hydraulic bolt formula jack-up unit wedge bracket guide frame | |
| CN104729935A (en) | Adjustable fastener-type template system supporting test device | |
| CN206052675U (en) | A kind of seat structure of vertical ship lift locking device hydraulic push rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |