CN109914693A - A kind of column of the inside filled with liquid - Google Patents
A kind of column of the inside filled with liquid Download PDFInfo
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- CN109914693A CN109914693A CN201910283538.0A CN201910283538A CN109914693A CN 109914693 A CN109914693 A CN 109914693A CN 201910283538 A CN201910283538 A CN 201910283538A CN 109914693 A CN109914693 A CN 109914693A
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Abstract
A kind of column of the inside filled with liquid is the column of support.Be inside it is hollow, be filled with the liquid of certain pressure, be allowed to that the tube type material used as column its support strength increases and column top stress is uniformly distributed, its is light-weight compared with solid column.It is less simultaneously just now with the dosage of cement.Its basic principle is to be converted into support force by the expansive force of liquid column cavity.In view of the difference of column shell and the thermal expansion coefficient of built-in liquid, the stability of liquid had pressure in column is influenced.It is provided with compressible object in the cavity of column, to make up the influence due to environment temperature, makes occur negative pressure caused by excessively high pressure or vacuum in column.Seal cover board is the merging of compressible object for convenience, and valve is the injection and maintenance of liquid for convenience.Pressure gauge is the pressure for the ease of observing internal liquid.Closable gas vent is set on the top of column, is in order not to allow in column with the presence of gas.
Description
Technical field
The invention belongs to technical field of buildings, the column more particularly to a kind of inside filled with liquid.
Background technique
Column is as one of indispensable component of building aspect.Skyscraper, workshop and some public buildings are come
It says, as the component of building is most commonly seen using column.For column itself, the conventional means of production is various
The steel section in section, or the column of suitable needs being made of the steel section in various sections, and by reinforcing bar and concrete
The column of composition.The section of these columns is different, and other than meeting aesthetics, most important purpose is exactly to meet functionality
On the basis of it is required that, the use space of the use and building of saving material is maximized.Such as using steel as the vertical of building
When column, one of selection of people may be steel pipe rather than solid steel column.Itself the reason is as follows that.
As shown in figure 3, D is the outer diameter of pipe as D/d=0.7, d is the internal diameter of pipe.The z-axis the moment of inertia Iz of pipe cross-section is
The 80% of the z-axis the moment of inertia Iz of solid steel column, but used material is only the half of solid steel column.The moment of inertia is bar class
The important factor index of object bending resistance and stability, its bigger bending resistance of its value and stabilizing power are higher.For column
Ability when load is born in upper end, and Euler's formula is expressed as follows:
Fcr=π²EI/(μl) (1)；
Wherein: Fcr --- critical load；π --- pi；E --- elasticity modulus；I --- the moment of inertia；
μ --- Poisson's ratio；The length of l --- column.
It can be seen from equation (1) that the value of the moment of inertia I is directly proportional to critical load Fcr, the increase of the moment of inertia I value has
Conducive to the bearing capacity for improving column.For steel pipe, the stability of the column of same diameter, the steel pipe of materials 50% can reach
To the 80% of solid post.
Steel pipe has a problem that as column, although it meets the requirement of stability from the point of view of the moment of inertia,
It is said from measuring body angle, steel pipe, which does supporting member its bearing capacity and excessively concentrates on tube wall, is easy to make tube wall local deformation, thus
Lead to successional deformation.
Summary of the invention
A kind of column the object of the present invention is to provide inside filled with liquid.It is filled with liquid in the inside of column, this
Liquid receiving has certain pressure, because the pressure in liquid container is uniformly distributed in surrounding.The advantage of doing so is that can
It is uniformly distributed on the carrying end face with column with the pressure for allowing bearing end to be born, after the wall of column is by uniform expansive force,
Wall is just less susceptible to due on the section of wall thickness the wall of column is deformed because of pressure concentrations.To improve column
Bearing capacity.The filling of liquid is more convenient, and hollow component can transport after factory process is good to place to use, and can be with
Reach the modularized design manufacture of normal formula.If column be it is solid, the stability of anti-pressure ability and column all can be better than interior
Portion is filled with the column of liquid, but from the perspective of economy, solid column be it is not cost-effective, said from the angle used solid
The weight of column is too heavy, and the increased effect of stability of solid column is unobvious.Compared with concrete structure, having can ring
It protects and efficient advantage.
For stability, the basic principle of column stability is that the born pressure of column top is multiplied by column elastic bending
The generated torque that allows to deform for deviateing fulcrum balances each other with recoverable moment of elasticity, and obtains critical pressure and be confirmed as
Permitted critical pressure required by pillar stability.If column top bears the counter-force of liquid, pillar is just alleviated
The pressure born.That is, the column filled with liquid can bear bigger critical pressure.Improve the steady of column
Degree.It is not because the moment of inertia of hollow column generates because the pressure come in self-stabilised post is the active counter-force that liquid generates.
A main member of the present invention as building, the problem of being related to ambient temperature effect.In order to guarantee column
Interior liquid has enough pressure, and improves the support force of column and be relatively evenly distributed in the top of column, and improves column
Stability, it is desirable that the linear expansivity of liquid is identical as the linear expansivity of hard shell.Otherwise it will cause the liquid in column can
The excessive expansion that can be generated by environment in the raising of temperature, so that the fluid pressure in column is excessively high, or due to environment temperature
That spends is too low, leads to the contraction that liquid is excessive, so that occurring vacuum voids in column, causes to generate negative pressure, Bu Nengqi in column
Bearing capacity and bearing capacity are uniformly distributed and improve the stability of column compared with ground at the top of to raising column.
Reach the expansion rate of liquid and the expansion rate of enclosure material in column and require identical thing, is to be less susceptible to accomplish
, then will need to take some measures solution this problem.Fig. 5 is the parameter list of the physical characteristic of some materials, carbon steel
Elasticity modulus and the elasticity modulus of rubber be not an order of magnitude.It, can be under under the pressure condition that one sets
Formula is stated to obtain:
Formula :-Δ V/V=[P3 (1-2 μ)]/E, under the action of pressure P, the volume change ratio of carbon steel are as follows:
-ΔV/Vօ-T=[P3(1-2x0.26)]/2x105=0.72x10-5P (2)；
Wherein: taking 0.26, E to take 2x10 according to Fig. 5, μ5MPa；
The volume change ratio of rubber are as follows:
-ΔV/Vօ-x=[P3(1-2x0.47)]/7.84=0.23x10-1P (3)；
Wherein: taking 0.47, E to take 7.84MPa according to Fig. 5, μ；
Obviously, rubber is easily compressed.For liquid its by pressure and volume occur reduce in normal circumstances
And can ignore and not remember, unless just pay attention under the action of by explosive force.
Above-mentioned discussion is to solve the variation due to temperature and expand the volume of liquid excessively at high temperature and low
When warm the case where excess shrinkage.If placing a certain amount of rubber in the steel column filled with liquid, when the temperature increases, due to liquid
The volume of body increases, and augmenting portion is absorbed by the volume of compressing rubber；When the temperature decreases, since the volume of liquid contracts
It is small, part is reduced by being made up by the elastic expansion of compressing rubber.
Refer now to the influence that temperature changes liquid volume.
The cubic expansion coefficient of water are as follows: 0.208x10-3(1/ DEG C), 20 DEG C of value；
The cubic expansion coefficient of alcohol are as follows: 1.08x10-3(1/ DEG C), 20 DEG C of value；
The cubic expansion coefficient of ethylene glycol are as follows: 0.57x10-3(1/ DEG C), 20 DEG C of value；
The thermal expansion coefficient of A3 steel: 0.032x10-3(1/ DEG C)；
The coefficient of expansion of silicon rubber: 0.53 ~ 0.93x10-3(1/ DEG C), takes 0.73x10-3(1/ DEG C)；
From fig. 6 it can be seen that the volume ratio of its water of anti-icing fluid and ethylene glycol at -32 DEG C of freezing point is respectively to account for 50%, its cubical expansion
Coefficient is the average value conversion of the cubic expansion coefficient of water and ethylene glycol are as follows: 0.39x10-3(1/ DEG C), 20 DEG C of value；
According to formula: Vt=V0(1+ β t),
It obtains: (Vt-V0)/V0=β t (4), in which:
β-the cubic expansion coefficient, V0Volume before-temperature change, VtVolume after-temperature change, t-temperature change value, (Vt-
V0)/V0- volume change ratio.
After temperature change t value, situation is as follows:
The volume change ratio of steel: 0.032x10-3t；
The volume change ratio of anti-icing fluid at -32 DEG C of freezing point: 0.57x10-3(1/ DEG C) t；
The volume change ratio of silicon rubber: 0.73x10-3t。
Obviously, it varies with temperature and the size of the volume also amount of changing, rubber is maximum, anti-icing fluid at -32 DEG C of freezing point
Take second place, A3 steel is minimum, but differentiated, this different responses in the volume of liquid and the difference in change of stand column cavity volume,
And lead to the variation of column internal stress.If biggish reduction occurs for temperature, full of antifreezing agent and added with a certain amount of in column
Silicon rubber when, the variation of silicon rubber and antifreezing agent volume will make the cavity in column will appear partial vacuum condition.At this moment,
Instead column its support strength under the action of negative pressure, which does not increase not only, to be reduced, this cannot be allowed to.Conversely, working as temperature liter
Silicon rubber and antifreezing agent speed of expansion are higher than A3 steel when high, will be by the excessive bulbs of pressure inside column.But problem is silicon
Rubber volume change when being pressurized is very big, and the influence bring of temperature can be made up in the case where pressure change is little
The variation of volume.Prevent the appearance of vacuum state or the excessively high interior expansive force of temperature in column from excessively increasing the intensity for influencing column.
It is calculated according to formula (4), -32 DEG C of freezing point of anti-icing fluid is by -32 DEG C ~ 35 DEG C of volume no-load voltage ratio are as follows: 38.19x10-3。
Volume no-load voltage ratio occurs for silicon rubber.38.19x10-3Pressure change obtained by formula (3):
0.23x10-1P=.38.19x10-3 (5)
It is obtained by formula (3): P=1.66x10-4(MPa)=166(Pa)；
That is, for the antifreezing agent of same volume and silicon rubber, do not need very big pressure change can make up it is anti-
Freeze agent due to the influence of temperature bring volume change.In the case that if this pressure for allowing to change is very high values, vertical
Antifreezing agent and silicon rubber are added in column, the volume of silicon rubber can become very little, so that it may meet presently embodied advantage
It is required that.
From Fig. 5 it can also be seen that the linear expansion coefficient of carbon steel and concrete be it is differentiated, become in this way in environment temperature
It is to change existing for stress, and uniformity is also poor between concrete and reinforcing bar, although this stress is allowing when change
In the range of.But the stress between liquid and solid of the invention is to be uniformly distributed and can be target-seeking, it can be by targeted
The design of structure structure is compensated by.
Figure 4, it is seen that silicon rubber is in the range of -40 ~ 100 DEG C, the variation of elasticity modulus is lain substantially in
Change in the smaller and more stable range of linearity.It is feasible that silicon rubber, which is used, as the material that liquid volume changes is made up.
Curve 1 in figure is nitrile rubber, and curve 2 is silicon rubber, and curve 3 is acrylic rubber, and curve 4 is fluorubber.
Certainly, the present invention is also contemplated that liquid to rubber-like material and stud materials etching problem that may be present.
Technical solution
A kind of column of the inside filled with liquid, comprising: column and liquid；It is characterized by:
The middle part of the column is cavity, and shell is solid material；Hole is offered on column；Liquid is from offered hole
It is injected into the cavity of column, the pressure for filling and liquid being made to generate a setting in the cavity of column；Then it will be opened
It is blocked equipped with hole；
Closable gas vent is installed on the column, existing gas in the cavity for discharging column；When in column
Gas all exclude final vacuum bore closures；
The column is identical with the thermal expansion coefficient of fluent material.
One guide hole of outside and the first valve that the hole of liquid is injected on column is tightly connected；
Hole is offered on the wall of column, for connecting pressure gauge.
The thermal expansion coefficient of the column and fluent material is not identical；Offer hole on the wall of column, this hole by
Seal cover board blocks；Compressible object is installed in the cavity of column by this hole, compressible object is dipped in liquid；
The compressible object can compress, and compressive deformation is that flexible deformation or partial elastic deformation and part plasticity become
Shape.
The middle part of second column is cavity, and its underpart offers hole；Hole, the second valve are offered on the top of column
One end sealing joint of door connects the second column lower part and offers hole, and the other end sealing joint of the second valve connects column top
Offer hole；The top of column is fixedly connected with the second column lower part；
Closable gas vent is installed on second column, for discharging existing gas in column and the second stand column cavity.
Head and the tail fixing seal is connected multiple second columns up and down with second column, offers connection between them
Hole, so that the cavity between column interconnects；It is installed with closable gas vent on uppermost second column, for discharging
Existing gas in all cavitys.
Above-mentioned technical side has reached make hollow column hydraulically full after improve its support strength and top pressure
It is uniformly distributed.Closable gas vent is offered above hollow column, gas present in column can be allowed to be squeezed by liquid
Out.Compressible object is placed in the cavity of column, due to the variation ratio of compressible object its volume in the case where certain pressure
It is big compared with liquid and solid, compressible object product Flexible change can offset the variation due to temperature so that liquid volume change
Change, prevents the overvoltage condition for occurring vacuum in the cavity of column and liquid is occurred by pressure.Set seal cover board be in order to
Facilitate the merging of compressible object.Set pressure gauge is to monitor the pressure that liquid is born in column for convenience.
Cock body is connected on column, one end of cock body is in the cavity of column, and the other end is in the outside of column；Adjustment plug
The outside of body, the volume that cock body is placed in stand column cavity change；Connection between cock body and column is to be tightly connected.Vertical
The purpose that cock body is connected on column is, after filling liquid in column, if pressure is not met by the requirement of setting, can adjust
One end of whole cock body enters the size of stand column cavity inner volume, so that the volume in stand column cavity changes, carrys out compressed liquid
Or extruding of the mitigation to liquid.For liquid, the variation of micro volume can be so that pressure suffered by liquid be generated
Very big change.
It is said from the angle of manufacturing cost of the invention, above-mentioned ethylene glycol may cause the increase of cost of manufacture, if right
The purity requirement of ethylene glycol is without being coated with anti-corrosion material on so high and inner wall in column, as long as reaching required freezing point
Can with when.What its cost of manufacture will be greatly reduced.Or the liquid low using other anti-corrosion freezing points.
It is an advantage of the invention that the inside in column is filled with liquid, this liquid receiving has certain pressure, because of liquid
Pressure in body container is uniformly distributed in surrounding.The advantage of doing so is that the pressure that bearing end can be allowed to be born uniformly is divided
On the carrying end face of cloth and column, after the wall of column is by uniform expansive force, wall be just less susceptible to because pressure concentrations in
On the section of wall thickness the wall of column is deformed.To improve the bearing capacity of column.The filling of liquid is more convenient,
Hollow component can transport after factory process is good to place to use, and can achieve the modularized design manufacture of normal formula.
The present invention can be used in a variety of places such as column, electric pole, light pole and the guardrail of building.
Detailed description of the invention
Fig. 1 is a kind of block diagram of column of inside filled with liquid.
Fig. 2 is a kind of implementation example figure of column of inside filled with liquid.
Fig. 3 is cylinder-shaped tubing z-axis the moment of inertia curve graph.
Fig. 4 is the elasticity modulus of partial rubber and the graph of relation of environment temperature.
Fig. 5 is the parameter list 1 of the physical characteristic of some materials.
Fig. 6 is anti-icing fluid formula table 2.
Specific embodiment
Embodiment 1
A kind of column of the inside filled with liquid, comprising: column 1 and liquid 2；It is characterized by:
The middle part of the column 1 is cavity, and shell is solid material；Hole is offered on column 1；Liquid 2 is from being opened up
There is hole to be injected into the cavity of column 1, the pressure for filling and liquid 2 being made to generate a setting in the cavity of column 1；Vertical
One guide hole of outside and valve 3 that the hole of liquid 2 is injected on column 1 is tightly connected；After the cavity that liquid 2 fills column 1, valve
Door 3 is closed；
Hole is offered on the wall of column 1, for connecting pressure gauge 8.
Hole is offered on the wall of column 1, this hole is blocked by seal cover board 4；Through this hole in the cavity of column 1
It is installed with compressible object 5, compressible object 5 is dipped in liquid 2；
The compressible object 5 can compress, and compressive deformation is flexible deformation or partial elastic deformation and part plasticity
Deformation.
The middle part of second column 6 is cavity, and its underpart offers hole；Hole is offered on the top of column 1, second
The hole that one end sealing joint connection 6 lower part of the second column of valve 7 opens up, the other end sealing joint connection of the second valve 7 are vertical
The hole that 1 top of column opens up；The top of column 1 is fixedly connected with 6 lower part of the second column；
It is installed with closable gas vent on second column 6, for discharging existing gas in 6 cavity of column 1 and the second column.
As shown in Fig. 2, being the structural schematic diagram of the present embodiment.Compressible object 5 is from the blocked column 1 of seal cover board 4
Hole merging, then seal cover board 4 blocks the hole.Valve 3 is opened, liquid 2 is flowed into column 1 and the second column 6 from the valve
Cavity in.Due to there is free gas in column 1 and the second column 6, liquid 2 is difficult the institute filled up in column 1 and the second column 6
There is space, this just needs to offer gas vent on the top of the second column 6, this gas vent closes after excluding all air
It closes.The purpose for being further continued for injecting liquid 2 into column 1 and the second column 6 by valve 3 is that injected liquid 2 is allowed to have one
Fixed pressure, this pressure will make the volume-diminished of compressible object 5.The purpose of compressible object 5 is when variation of ambient temperature.
Since the thermal expansion coefficient of column 1, the second column 6 and liquid 2 is different, it would be possible to so that the volume expansion of liquid 2, gives column 1
Excessively high pressure is generated with the cavity of the second column 6, or the cavity of column 1 and the second column 6 occurs
Vacuum and generate negative pressure.The expansion of liquid 2 is compensated with contraction by the flexible deformation of compressible object 5.If the amount of elastic compensating
Enough, it can permit compressible object 5 with a certain amount of primality and disposable plastic shrinkage.
The purpose that pressure gauge is installed on column 1 is the pressure it will be seen that injected liquid 2, because what the present invention emphasized
It is to increase and column top stress is uniformly distributed in the support strength of injection liquid 2 rear column.So understanding liquid 2
The setting of pressure is critically important.
Second valve 7 is combined together between column 1 and the second column 6, column 1 and the second column 6 it
Between bar when being in different positions, can allow the cavity between column 1 and the second column 6 that can be connected to or be isolated.Second valve
The rotation that door 7 is connected through a screw thread bar so that bar move left and right reach cavity connection between column 1 and the second column 6 or every
From.
In fact, in the case where no second column 6, so that it may have the support strength emphasized as the present invention and stand
The equally distributed function of top end stress.But the benefit for adding the second column 6 is not influence the advantages of column is emphasized
In the case of, can by close the second valve 7 in the case where, cleared up or replaced compressible object 5 in the cavity of column 1,
And continue to inject the guarantee pressure of liquid 2 into cavity to be all very easily.
There are also some benefits to be by the present invention, for the pillar class component of solid class, can save material, mitigate weight.Subtract
The use for being difficult the cement material of degradation is lacked, there is environment-friendly function.It constructs with required in this place same for the long period
Temporary building it is particularly important because these construction weights gently be easy transport.By liquid 2 after being dismantled after construction
It outwells or is recycled after being collected with tank body.
Embodiment 2
A kind of embodiment 2 of column of the inside filled with liquid is substantially the same manner as Example 1, the difference is that:
Multiple second columns 6 are connected with about the 6 head and the tail fixing seal of the second column, offer connection between them
Hole, so that the cavity between column interconnects；It is installed with closable gas vent on uppermost second column 6, for arranging
Put existing gas in all cavitys.
The purpose of the present embodiment is, when needing to build higher building, from transport or processing angle implement compared with
It may be difficult.So, it may be considered that the concatenation of multiple second columns 6.
Claims (8)
1. a kind of column of inside filled with liquid, comprising: column (1) and liquid (2)；It is characterized by:
The middle part of the column (1) is cavity, and shell is solid material；Column offers hole on (1)；Liquid (2) is from institute
It opens up hole to be injected into the cavity of column (1), fill and makes the interior pressure for generating a setting of the cavity of liquid (2) column (1)
Power；Then offered hole is blocked；
It is installed with closable gas vent on the column (1), existing gas in the cavity for discharging column (1)；When
Gas in column (1) all excludes final vacuum bore closure；The thermal expansion coefficient phase of the column (1) and liquid (2) material
Together.
2. column of a kind of inside filled with liquid according to claim 1, it is characterised in that: the column (1) and liquid
The thermal expansion coefficient of body (2) material is identical.
3. column of a kind of inside filled with liquid according to claim 1, it is characterised in that:
One guide hole of outside and the first valve (3) that the hole of liquid (2) is injected on column (1) is tightly connected.
4. column of a kind of inside filled with liquid according to claim 1, it is characterised in that:
Hole is offered on the wall of column (1), for connecting pressure gauge (8).
5. a kind of column of the inside filled with liquid according to claim, it is characterised in that:
It is connected on column (1) cock body (9), one end of cock body (9) is in the cavity of column (1), and the other end is in column (1)
It is external；The outside of cock body (9) is adjusted, the volume in cock body (9) merging column (1) cavity changes；Cock body (9) and column
(1) connection between is to be tightly connected.
6. column of a kind of inside filled with liquid according to claim 1, it is characterised in that: the column (1) and liquid
The thermal expansion coefficient of body (2) material is not identical；Hole is offered on the wall of column (1), this hole is blocked by seal cover board (4)；
It is installed in the cavity of column (1) by this hole compressible object (5), compressible object (5) is dipped in liquid (2)；Described
Compressible object (5) compressive deformation is flexible deformation or partial elastic deformation and portions plastic deformation.
7. column of a kind of inside filled with liquid according to claim 1, it is characterised in that: column (1) is segmented into two
Part, column (1) and the second column (6), the top of column (1) offer hole, and the middle part of the second column (6) is cavity, and second
One end sealing joint connection the second column (6) lower part of valve (7) opens up hole, and its underpart offers hole；The top of column (1) with
Second column (6) lower part is fixedly connected；Second column is installed with closable gas vent on (6), for discharging column (1) and
Existing gas in two columns (6) cavity.
8. column of a kind of inside filled with liquid according to claim 7, it is characterised in that:
Head and the tail fixing seal is connected multiple second columns (6) up and down with second column (6), the company of offering between them
Hole is connect, so that the cavity between column interconnects；It is installed with closable gas vent on uppermost second column (6), is used
In existing gas in all cavitys of discharge.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910283538.0A CN109914693A (en) | 2019-04-10 | 2019-04-10 | A kind of column of the inside filled with liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910283538.0A CN109914693A (en) | 2019-04-10 | 2019-04-10 | A kind of column of the inside filled with liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387838A (en) * | 2019-08-05 | 2019-10-29 | 河南新之源园林绿化设计有限公司 | A kind of town road hard shoulder with warning function |
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| CN210032339U (en) * | 2019-04-10 | 2020-02-07 | 沈阳人和机电工程设备有限公司 | Upright column filled with liquid |
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- 2019-04-10 CN CN201910283538.0A patent/CN109914693A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1188509A (en) * | 1956-07-30 | 1959-09-23 | Gollnow Werke A G | special element working in compression and special element working in bending, in particular for constructions of all kinds |
| GB865780A (en) * | 1956-07-30 | 1961-04-19 | Gollnow Werke A G | Improvements in or relating to structural members |
| CN1155030A (en) * | 1996-10-07 | 1997-07-23 | 邓庚厚 | Building support upright column for top-lifting type building method |
| US20020046530A1 (en) * | 2000-10-19 | 2002-04-25 | Drake William E. | Column structures and methods for supporting compressive loads |
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| CN103541497A (en) * | 2013-11-13 | 2014-01-29 | 任树义 | Method for manufacturing high-rigidity pressure-bearing bending-resistant rod piece |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110387838A (en) * | 2019-08-05 | 2019-10-29 | 河南新之源园林绿化设计有限公司 | A kind of town road hard shoulder with warning function |
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