CN104963280B - A kind of Novel circular steel cylinder pier - Google Patents
A kind of Novel circular steel cylinder pier Download PDFInfo
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- CN104963280B CN104963280B CN201510357229.5A CN201510357229A CN104963280B CN 104963280 B CN104963280 B CN 104963280B CN 201510357229 A CN201510357229 A CN 201510357229A CN 104963280 B CN104963280 B CN 104963280B
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Abstract
The invention discloses a kind of Novel circular steel cylinder pier, including round steel pipe bridge pier body, diaphragm plate, anti-buckling energy-consumption housing and the base plate together of solid welding the most successively；Anti-buckling energy-consumption housing includes some pieces of high-strength steel arcs and some pieces of Low Yield Point Steel arcs, each high-strength steel arc and each Low Yield Point Steel arc are alternately distributed and surround hollow cylindrical anti-buckling energy-consumption housing, and the outer surface of Low Yield Point Steel arc is tangent with the outer surface of high-strength steel arc；Inside and outside each Low Yield Point Steel arc, locking has interior constraint curved plate and outer constraint curved plate the most respectively, and the radian of inside and outside constraint curved plate is identical with the radian of Low Yield Point Steel arc.The present invention provide round steel pipe bridge pier anti-seismic performance good, shake after can quickly detect reparation, it is simple to popularization and application in Practical Project.
Description
Technical field
The present invention relates to field of civil engineering steel bridge pier energy-dissipation structure form, refer specifically to a kind of root and arrange
The round steel pipe bridge pier of anti-buckling energy-consumption housing, belongs to steel bridge pier technical field in science of bridge building.
Background technology
Domestic and international all previous earthquake experience have shown that, bridge is rapid wear under geological process.Bridge pier is bridge
The major bearing structures of structure, whether it damages the damage overall to bridge structure or even destruction plays act
The effect of foot weight.The heavy damage of bridge pier may cause collapsing of bridge, and is difficult to after shake in time
Repairing and use, after giving shake, rescue and relief work makes troubles, and the loss caused is the hugest.
Present stage, bridge pier both domestic and external the most all uses reinforced concrete structure form, this form
Bridge pier compressive property is good, but ductility is poor, suffers from heavy damage in all previous earthquake.Concrete pier
Destruction be mostly derived from defect of both design and structure: 1) bridge pier bending resistance design deficiency, mainly
Lateral confinement hooping bars layout is not enough；2) Pier Design shearing strength is not enough, cause failure by shear prior to
The bending failure of ductility.In order to make up the defect of reinforced concrete bridge pier, improve the anti-seismic performance of bridge,
In some earthquake prone areas, such as the Taiwan of the U.S., Japan and China, gradually adopt
Steel bridge pier is as bottom bracing structure.Compared with reinforced concrete bridge pier, steel bridge pier not only has well
Anti-seismic performance, also have from heavy and light, take up an area less, quick construction is convenient, the easy advantage such as reparation after shake.
During exploring new bridge pier structure form, round steel pipe bridge pier all has preferable bending resistance in all directions
Performance, has the advantages such as strong, the appearance looks elegant of anti-pressure ability, it has also become quite have the structure shape of development potentiality
One of formula.But in actual seismic, round steel pipe bridge pier root coverboard easily occurs cripling to deform, and causes
Ductility and the energy dissipation capacity of round steel pipe bridge pier drastically deteriorate.
Energy-dissipating and shock-absorbing technology is a kind of effective, safe, economic engineering cushion technique, and this technology is
Day by day ripe, it is the earthquake resistant construction of a kind of great development prospect.The mechanics feature of Low Yield Point Steel is in the wrong
Taking intensity low, yield strain is little, intensity stabilization, and deformability is strong.Low Yield Point Steel has the strongest
Energy dissipation capacity, and have the longest low all cycle fatigue lifes, the advantages such as solderability is good.Use low surrender
The point energy-dissipating device made of steel can shake in reducing after repair, and can significantly reduce that big shake is lower ties
The damage of structure.Therefore the application of Low Yield Point Steel becomes the important channel strengthening malformation power consumption.
China for the Low Yield Point Steel in building aseismicity field, developed yield strength be 100MPa,
Tri-kinds of ranks of 160MPa, 225MPa.This carries out Low Yield Point Steel in architectural energy consumption field of shock absorption for China
Applied research provide necessity material base condition.
Summary of the invention
It is an object of the invention to provide that a kind of anti-seismic performance is good, be easy to shake after damage check and quickly repairing
Multiple Novel circular steel cylinder pier.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of Novel circular steel cylinder pier, including the round steel pipe bridge pier together of solid welding the most successively originally
Body, diaphragm plate, anti-buckling energy-consumption housing and base plate；The profile of above-mentioned anti-buckling energy-consumption housing is in upper
Stating the hollow cylindrical that the shape of round steel pipe bridge pier body matches, above-mentioned anti-buckling energy-consumption housing includes
Some pieces of high-strength steel arcs and some pieces of Low Yield Point Steel arcs, above-mentioned high-strength steel arc is with upper
State Low Yield Point Steel arc to be alternately distributed and surround above-mentioned anti-buckling energy-consumption housing, above-mentioned Low Yield Point Steel
It is detachably connected between arc and above-mentioned high-strength steel arc, and above-mentioned Low Yield Point Steel arc
The outer surface of shape plate is tangent with the outer surface of above-mentioned high-strength steel arc；Each above-mentioned Low Yield Point Steel arc
Inside and outside shape plate, locking has interior constraint curved plate and an outer constraint curved plate the most respectively, above-mentioned in,
The radian of outer constraint curved plate is identical with the radian of above-mentioned Low Yield Point Steel arc.
The height of above-mentioned high-strength steel arc is above-mentioned round steel pipe bridge pier body cross-section diameter
1.0-1.2 again；The cross-sectional arc length of above-mentioned high-strength steel arc is above-mentioned round steel pipe bridge pier body cross-section
The 1/8 of girth；The thickness t of above-mentioned high-strength steel arcHigh=2fGeneraltGeneral/fHigh, in formula, fGeneralFor upper
State the yield strength of the wallboard of round steel pipe bridge pier body；tGeneralWallboard for above-mentioned round steel pipe bridge pier body
Thickness；fHighMaterial yield strength for above-mentioned high-strength steel arc.
The cross-sectional arc length of above-mentioned Low Yield Point Steel arc is above-mentioned round steel pipe bridge pier body cross-section week
Long 1/8, between above-mentioned Low Yield Point Steel arc and above-mentioned diaphragm plate and bridge pier infrastructure end face all
Leave 20mm-30mm distance.
High-strength friction-type bolt is used between above-mentioned Low Yield Point Steel arc and above-mentioned high-strength steel arc
Link together；Or, above-mentioned Low Yield Point Steel arc, above-mentioned interior constraint curved plate, above-mentioned
High-strength friction-type is used to be bolted between outer constraint curved plate and above-mentioned high-strength steel arc
Together.
By penetrating three between above-mentioned Low Yield Point Steel arc and above-mentioned inside and outside constraint curved plate
Bolt or pre-stressed bolt connect；Have ellipse hole on above-mentioned inside and outside constraint curved plate so that
Bolt passes and has enough slipping space.
After using such scheme, the present invention has the advantages that:
(1) material mechanical performance of high-strength steel is given full play to.High-strength steel arc has the bigger limit
Elastic strain value, the surrender power consumption for Low Yield Point Steel arc provides guarantee；And high-strength steel arc
Play stress frame effect, it is possible to provide enough bearing capacitys and rigidity.
(2) lateral deflection of cutting giving full play to Low Yield Point Steel takes energy dissipation capacity.By at Low Yield Point Steel arc
Inside and outside shape plate, surface adds the form of arc constraint steel plate, can effectively prevent the low surrender of thin-walled
Point steel arc bends flexing, forms rational force area lattice, gives full play to Low Yield Point Steel arc
Shape plate is cut lateral deflection and is taken energy dissipation capacity.
(3) after shake can the anti-seismic performance of quick detecting appraisal round steel pipe bridge pier, rapid renovation reinforced round steel
The shock resistance of pipe bridge pier, it is ensured that the bridge as lifeline engineering keeps unimpeded, promptly rescues after shake
Help, with post-disaster reconstruction, there is most important effect.
(4) construction period is short, quick construction.The each parts of round steel pipe bridge pier, including Low Yield Point Steel arc
Shape plate, diaphragm plate etc. all can in factory processing and fabricating, scene only need lifting.For urban traffic flow
Measure big section, use this round steel pipe bridge pier can significantly shorten the traffic control time, it is also possible to the most greatly
Road rehabilitation speed after fast earthquake and burst accident.
(5) the Novel circular steel cylinder pier that the present invention provides have that anti-seismic performance is good, ductility is high, power consumption energy
The advantages such as power is strong.
Accompanying drawing explanation
Fig. 1 is the elevational schematic view of Novel circular steel cylinder pier of the present invention.
Fig. 2 is the cross sectional representation of the first structure of anti-buckling energy-consumption housing in the present invention.
Fig. 3 is the connection signal of Low Yield Point Steel arc and inside and outside constraint curved plate in the present invention
Figure.
Fig. 4 is the structural representation of diaphragm plate in the present invention.
Fig. 5 is the structural representation of base plate in the present invention.
Fig. 6 is the cross sectional representation of anti-buckling energy-consumption housing the second structure in the present invention.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
The present invention provides a kind of Novel circular steel cylinder pier, as it is shown in figure 1, include welding the most successively
Gu round steel pipe bridge pier body 100, diaphragm plate 200, anti-buckling energy-consumption housing 300 and base plate together
400。
The profile of anti-buckling energy-consumption housing 300 is in matching with the shape of round steel pipe bridge pier body 100
Hollow cylindrical, diaphragm plate 200 is the circular slab matched with round steel pipe bridge pier body 100 profile,
Together with round steel pipe bridge pier body 100 passes through diaphragm plate 200 solid welding with anti-buckling energy-consumption housing 300,
Diaphragm plate 200 can ensure that round steel pipe bridge pier body 100 is smooth and easy with anti-buckling energy-consumption housing 300 power transmission,
Form overall common opposing external loads effect；For alleviating deadweight and facilitating operational phase repair and maintenance,
As shown in Figure 4, in the middle of diaphragm plate 200, circular opening 21 is set.
As in figure 2 it is shown, anti-buckling energy-consumption housing 300 includes some pieces of high-strength steel arcs 31 and some
Block Low Yield Point Steel arc 32, each high-strength steel arc 31 is handed over each Low Yield Point Steel arc 32
The anti-buckling energy-consumption housing 300 of hollow cylindrical is surrounded for distribution.Low Yield Point Steel arc 32 is with high
Strong steel arc 31 is detachably connected, and the outer surface of Low Yield Point Steel arc 32 is with high
The outer surface of strong steel arc 31 is tangent.Specifically: the two side ends of high-strength steel arc 31 lateral wall
The short transverse extension along Low Yield Point Steel arc 32 it is arranged with respectively in portion, and for low-yield
The side end of steel arc 32 is stacked at interior installation depression, the side of Low Yield Point Steel arc 32
Portion is locked by some high-strength friction-type connection bolts 500 and installs in depression at this.Connecting bolt 500
It is made up of screw rod, nut, steel plate washer, loosens for connecting bolt during preventing life-time service, use
Double nut type of attachment.
The height of high-strength steel arc 31 is the 1.0-1.2 of round steel pipe bridge pier body 100 cross-sectional diameter
Times；The cross-sectional arc length of high-strength steel arc 31 is round steel pipe bridge pier body 100 section girth
1/8；The thickness t of high-strength steel arc 31High=2fGeneraltGeneral/fHigh, in formula, fGeneralFor round steel pipe bridge pier
The yield strength of the wallboard of body 100；tGeneralThickness for the wallboard of round steel pipe bridge pier body 100；fHighMaterial yield strength (using 390MPa, 420MPa or 460MPa) for high-strength steel arc 31.
The material of Low Yield Point Steel arc 32 is Low Yield Point Steel, and yield strength is 100MPa, 160MPa
Or 225MPa.The cross-sectional arc length of Low Yield Point Steel arc 32 is that round steel pipe bridge pier body 100 is transversal
The 1/8 of face girth, the top of high-strength steel arc 31 together with the lower surface solid welding of diaphragm plate 200,
Bottom is with base plate 400 solid welding together with, under Low Yield Point Steel arc 32 and diaphragm plate 200 and bridge pier
20mm-30mm distance is all left between 700 end faces of basis, portion.
As Figure 2-3, in inside and outside each Low Yield Point Steel arc 32, locking has the most respectively
Constraint curved plate 33 and outer constraint curved plate 34, interior constraint curved plate 33 and outer constraint arc
Steel plate 34 thickness is identical, the radian of inside and outside constraint curved plate 33,34 and Low Yield Point Steel arc
The radian of plate 32 is identical, Low Yield Point Steel arc 32 and inside and outside constraint curved plate 33,34 it
Between connected by the bolt or pre-stressed bolt 600 penetrating three；Inside and outside constraint curved plate 33,
Ellipse hole is had so that bolt passes and has enough slipping space on 34.In the present invention, anti-buckling
The first structure of power consumption housing 300 is as in figure 2 it is shown, the chi of inside and outside constraint curved plate 33,34
The very little size less than Low Yield Point Steel arc 32, and its end and Low Yield Point Steel arc 32
Edge or and the pad of connecting bolt 500 between distance be 10mm～20mm.
In the present invention, the another kind of structure of anti-buckling energy-consumption housing 300 as shown in Figure 6, by low surrender
Point steel arc 32, interior constraint curved plate 33, outer constraint curved plate 33 three is commonly through spiral shell
Bolt is attached with high-strength steel arc 31.In this case, inside and outside constraint curved plate 33,34
Size identical with Low Yield Point Steel arc 32, its end and Low Yield Point Steel arc 32 edge
Concordant.
In the present embodiment, high-strength steel arc 31 and each four pieces of Low Yield Point Steel arc 32, four pieces
High-strength steel arc 31 plays stress frame effect, it is possible to provide enough bearing capacitys and rigidity, and its
Extreme elastic strain value is bigger, it is ensured that Low Yield Point Steel arc 32 surrender power consumption.Four pieces of low surrenders
The Low Yield Point Steel arc 32 of this thin-walled, for mainly to surrender energy-consuming parts, is increased by some steel arc 32
If after inside and outside constraint curved plate 33,34, its out-of plane bending bending deformation can be suppressed, it is complete cutting
The moulding surrender power consumption in face, it is ensured that it cuts lateral deflection clothes power consumption, after bridge pier is destroyed, it is ensured that bridge pier root
Portion's outward appearance changes without big.Therefore, the round steel pipe bridge pier ductility of the present invention is good, energy dissipation capacity strong, antidetonation
Function admirable；After shake can being evaluated rapidly by the surrender situation of four pieces of Low Yield Point Steel arcs 32 of detection
Its antidetonation can be quickly repaired after the anti-seismic performance of round steel pipe bridge pier, and replacing anti-buckling energy-consumption housing 300
Ability.
In the present invention, according to different design needs, anti-buckling energy-consumption housing 300 can be divided into and shakes greatly cunning
The anti-buckling energy-consumption housing moved and the anti-buckling energy-consumption housing two kinds of complete sliding.
For the big anti-buckling energy-consumption housing shaking sliding, bolt applies certain pretension, inside and outside
Certain thrust is produced, under little shake effect between constraint curved plate and Low Yield Point Steel arc
Both can guarantee that Low Yield Point Steel arc did not occur cripling, and passed through with Low Yield Point Steel arc
The contact common stress of friction, it is provided that powerful out of plane constraint effect；Under big shake effect, low-yield
Internal force difference between steel arc and inside and outside constraint curved plate exceedes the frictional force between them, will
Produce and relatively slide；In the case of there is not out-of-plane buckling in Low Yield Point Steel arc in the middle of ensureing,
Low Yield Point Steel arc gives full play to power consumption effect.
For the anti-buckling energy-consumption housing of complete sliding, bolt not Shi Hanzhang；In little shake and big shake
Under effect, between inside and outside constraint curved plate and Low Yield Point Steel arc all can with sliding, interior,
Outer constraint curved plate only provides out of plane constraint to Low Yield Point Steel arc, is not involved in stress in face；
Low Yield Point Steel arc provides in-plane stiffness and energy dissipation capacity.
As it is shown in figure 5, base plate 400 is circular slab, its periphery leaves anchor hole 41, it is simple to box-shaped steel
Bridge pier is fixed with basis.
During installation, the present invention follows these steps to implement:
(1) height of high-strength steel arc 31: take round steel pipe bridge pier body 100 cross-sectional diameter
1.0-1.2 again.
(2) welding position of diaphragm plate 200 is determined according to the height of high-strength steel arc 31, horizontal
The high-strength steel arc 31 of dividing plate 200 and anti-buckling energy-consumption housing and round steel pipe bridge pier body 100
Ordinary steel wallboard is welded into entirety.
(3) will pass through between Low Yield Point Steel arc 32 and inside and outside constraint curved plate 33,34
The bolt or the pre-stressed bolt 600 that penetrate this three block plate connect.Use anti-buckling energy-consumption housing 300
The first structure time, inside and outside constraint curved plate 33,34 be smaller in size than Low Yield Point Steel arc
The size of plate 32, and the end of inside and outside constraint curved plate 33,34 and Low Yield Point Steel arc
The edge of 32 or and the pad of the high-strength connecting bolt of following friction-type 500 between distance be
10mm～20mm；When using the second structure of anti-buckling energy-consumption housing 300, inside and outside constraint arc
The size of steel plate 33,34 is identical with Low Yield Point Steel arc 32, its end and Low Yield Point Steel arc
Shape plate 32 edge is concordant.
(4) by the Low Yield Point Steel arc 32 with inside and outside constraint curved plate 33,34 with rubbing
The high-strength connecting bolt of wiping type 500 is connected with high-strength steel arc 31.Use anti-buckling energy-consumption housing 300
The first structure time, only by Low Yield Point Steel arc 32 with high-strength steel arc 31 with being connected spiral shell
Bolt 500 connects；When using the second structure of anti-buckling energy-consumption housing 300, by Low Yield Point Steel arc
Shape plate 32 together with inside and outside constraint steel plate 33,34 with high-strength steel arc 31 connecting bolt 500
Connect.Connecting bolt 500 sets steel plate washer, uses double nut to connect.
(5) base plate 400 and high-strength steel arc 31 are welded into entirety.
Claims (5)
1. a Novel circular steel cylinder pier, it is characterised in that: include that solid welding is together the most successively
Round steel pipe bridge pier body, diaphragm plate, anti-buckling energy-consumption housing and base plate；Above-mentioned anti-buckling energy-consumption shell
The profile of body is in the hollow cylindrical matched with the shape of above-mentioned round steel pipe bridge pier body, above-mentioned anti-in the wrong
Bent power consumption housing includes some pieces of high-strength steel arcs and some pieces of Low Yield Point Steel arcs, above-mentioned height
Strong steel arc is alternately distributed with above-mentioned Low Yield Point Steel arc and surrounds above-mentioned anti-buckling energy-consumption housing,
It is detachably connected between above-mentioned Low Yield Point Steel arc and above-mentioned high-strength steel arc, and on
The outer surface stating Low Yield Point Steel arc is tangent with the outer surface of above-mentioned high-strength steel arc；On each
Stating locks inside and outside Low Yield Point Steel arc the most respectively interior constraint curved plate and outer bound arc
Shape steel plate, the radian of above-mentioned inside and outside constraint curved plate and the radian of above-mentioned Low Yield Point Steel arc
Identical.
A kind of Novel circular steel cylinder pier the most according to claim 1, it is characterised in that: above-mentioned height
The height of strong steel arc is 1.0-1.2 times of above-mentioned round steel pipe bridge pier body cross-section diameter；Above-mentioned
The cross-sectional arc length of high-strength steel arc is the 1/8 of above-mentioned round steel pipe bridge pier body cross-section girth；Above-mentioned
The thickness t of high-strength steel arcHigh=2fGeneraltGeneral/fHigh, in formula, fGeneralFor above-mentioned round steel pipe bridge pier body
The yield strength of wallboard；tGeneralThickness for the wallboard of above-mentioned round steel pipe bridge pier body；fHighFor above-mentioned height
The material yield strength of strong steel arc.
A kind of Novel circular steel cylinder pier the most according to claim 1, it is characterised in that: above-mentioned low
The cross-sectional arc length of yield point steel arc is the 1/8 of above-mentioned round steel pipe bridge pier body cross-section girth, on
State and all leave between Low Yield Point Steel arc and above-mentioned diaphragm plate and bridge pier infrastructure end face
20mm-30mm distance.
A kind of Novel circular steel cylinder pier the most according to claim 1, it is characterised in that: above-mentioned low
High-strength friction-type is used to be bolted to one between yield point steel arc and above-mentioned high-strength steel arc
Rise；Or, above-mentioned Low Yield Point Steel arc, above-mentioned interior constraint curved plate, above-mentioned outer bound arc
High-strength friction-type is used to be bolted together between shape steel plate and above-mentioned high-strength steel arc.
A kind of Novel circular steel cylinder pier the most according to claim 1, it is characterised in that: above-mentioned low
By penetrating the bolt of three or pre-between yield point steel arc and above-mentioned inside and outside constraint curved plate
Stress bolt connects；Have ellipse hole on above-mentioned inside and outside constraint curved plate so as bolt through and
There are enough slipping space.
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| CN201510357229.5A CN104963280B (en) | 2015-06-25 | 2015-06-25 | A kind of Novel circular steel cylinder pier |
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| CN201510357229.5A CN104963280B (en) | 2015-06-25 | 2015-06-25 | A kind of Novel circular steel cylinder pier |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107354863A (en) * | 2017-07-21 | 2017-11-17 | 华侨大学 | A kind of assembled gate-type round steel pipe bridge pier that power consumption binder is set |
| CN109577170B (en) * | 2018-05-31 | 2024-02-23 | 华侨大学 | Steel pipe concrete bridge pier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4957295B2 (en) * | 2007-03-05 | 2012-06-20 | 鹿島建設株式会社 | Seismic control pier structure |
| CN102409606B (en) * | 2011-07-29 | 2014-01-01 | 清华大学 | Self-resetting pier column structural system with built-in energy dissipation assembly and implementing method for self-resetting piper column structural system |
| JP5758268B2 (en) * | 2011-10-28 | 2015-08-05 | 新日鉄住金エンジニアリング株式会社 | Rigid structure of bridge pier and bridge girder and rigid connection method |
| CN103882803B (en) * | 2014-03-19 | 2016-11-09 | 浙江建科减震科技有限公司 | A kind of replaceable landscape configuration presstressed reinforcing steel Self-resetting power consumption bridge pier |
| CN104294754B (en) * | 2014-10-20 | 2017-06-20 | 广西交通科学研究院 | T-shaped section steel pipe regeneration concrete pier shaft |
| CN204849568U (en) * | 2015-06-25 | 2015-12-09 | 华侨大学 | Novel circular steel tube pier |
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