CN104064101B - The manufacture method of ultra-large type Reinforced Concrete Cooling Tower reduced scale test model - Google Patents
The manufacture method of ultra-large type Reinforced Concrete Cooling Tower reduced scale test model Download PDFInfo
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- CN104064101B CN104064101B CN201410271036.3A CN201410271036A CN104064101B CN 104064101 B CN104064101 B CN 104064101B CN 201410271036 A CN201410271036 A CN 201410271036A CN 104064101 B CN104064101 B CN 104064101B
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Abstract
The present invention relates to the manufacture method of ultra-large type Reinforced Concrete Cooling Tower reduced scale test model, bulk according to cooling tower scaled model, use heating wire that the rigid plastics foam template of scaled model is successively cut, the iron wire using different model has welded pillar skeleton, after installing the interior template of every layer, meridian in welding tower, to, hoop wire gauze, is the most gradually installed exterior sheathing and pours cylinder.Compared with prior art, the cooling tower scaled model that the present invention makes, its model horizontal plane inside radius, thickness can along with the change of model height consecutive variations, and the smooth in appearance of test model, continuously, the thickness of its physical dimension especially cooling tower cylinder can reach millimetre-sized control accuracy.This model production method has the advantages such as easy to operation, low cost, material requested the most easily purchase.
Description
Technical field
The invention belongs to the manufacture method of engineering structure test model, especially relate to a kind of ultra-large type reinforced concrete
The manufacture method of soil cooling tower reduced scale test model.
Background technology
Cooling stack is a kind of large space thin-wall construction, and owing to structural style is special, its security performance is subject to
Arrive the concern widely of people.In Reinforced Concrete Cooling Tower safety Analysis, experimental study is to weigh very much
The ring wanted, but being fabricated to restrict cooling tower experimental study of current this space thin walled construction test model
The difficult point extensively carried out.In order to the geometric properties of correct response cooling tower and loading characteristic, cooling tower is needed to contract
The tower of chi test model can copy prototype cooling tower for rotating hyperbolic-parabolic, it is desirable to the tower wall thickness of model is relatively
Little (size much smaller than radially), can be controlled with consecutive variations and precision.With with smooth vertical and horizontal common as feature
The test model of building structure is compared, and the particularity of cooling tower model build brings bigger difficulty to modelling.
Making for such test model at present typically uses wood materials to make interior template, uses steel fabric sheet simulation former
Meridian in type structure, to the bar-mat reinforcement of, circumferential reinforcement composition, finally uses the mode cooling tower of artificial applying mortar
The barrel of reduced scale test model.The manufacture method of this reduced scale test model exists following not enough: (1) wooden interior mould
Plate makes complexity, the time-consuming length of making, cost of manufacture is high and precision is difficult to guarantee；(2) wooden interior template be difficult to according to
The hyperbolic-parabolic with degree of precision produced by prototype structure；(3) tower radius is with height change, uses orthogonal
The wire gauze arranged directly is embedded in tower, and the hoop that will be unable to directly to simulate in prototype tower, meridian are to steel
Muscle is distributed；(4) mode of artificial applying mortar is used to make model tower, it is impossible to control each height and position of barrel
Thickness, and the thickness error of barrel on result of the test impact the biggest；(5) cylinder that is relatively thin due to barrel, that lay
Wall is prone to dry out and ftracture, and causes the difficulty in model maintenance.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide a kind of easy, efficiently
The manufacture method of Reinforced Concrete Cooling Tower reduced scale test model, use the cooling tower model that the method makes flat
Radius in face, thickness can with the change of model height consecutive variations, and make precision and can reach grade, examination
Test model and be prone to maintenance, it is adaptable to impart knowledge to students or study.
The purpose of the present invention can be achieved through the following technical solutions:
The manufacture method of ultra-large type Reinforced Concrete Cooling Tower reduced scale test model, according to the sky of cooling tower scaled model
Between size, use heating wire the rigid plastics foam template of scaled model is successively cut, use different model ferrum
Wire bond connects pillar skeleton, after installing the interior template of every layer, the meridian in welding tower to, hoop wire gauze,
Exterior sheathing pour cylinder is the most gradually installed, specifically uses following steps:
(1) cooling tower scaled model template is made: use and be made up of power supply, pressure adjustable type transformator, heating wire
Circuit in heating wire rigid plastics foam template is cut, cutting entablature template also need to use prefabricated
Plate is opened up in post half section, needs to be divided into 3 straton moulds according to cooling tower model physical characteristic suitable for reading for the superiors' template
Plate is respectively cut；
(2) cooling tower scaled model pillar is made: include making pillar iron wire skeleton and pillar sleeve, pillar fixed
Position, the pouring of pillar；
(3) cooling tower scaled model tower is made: include making in tower wire gauze and tower model is suitable for reading, tower
In the location of cylinder inner and outer template and cylinder, mortar pours.
In step (1), according to the bulk of cooling tower model, determine that template is along cooling tower scaled model height
The number of plies (being assumed to N shell) in direction, wherein the 1st layer is entablature template, and its height and strut height are same high,
The THICKNESS CONTROL of intermediate layer tower template is 100～250mm, and last layer of form height is cooling tower scaled model
Height and the difference of front (N-1) layer form height sum；At the in-plane of cooling tower scaled model, outside employing
Seeing smooth, to meet dimensional requirement rigid plastics foam and be planar spliced into one layer of template, same layer template uses
The quantity of rigid plastics foam is more than in cooling tower scaled model plane according to the rigid plastics foam width spliced
The principle of Breadth Maximum determine；Cutting width on every layer of upper and lower surface of template should be according to place height cooling tower
The radius size of scaled model determines.
Certain the layer model template spliced being fixed on during cutting can be on the pedestal of solid fixed-axis rotation, according to this layer of mould
The inside and outside radius size of the cooling tower model corresponding to the upper and lower surface of plate, uses by power supply, pressure adjustable type transformation
The circuit of device, heating wire composition, is cut template by heating wire, by the position of mobile fixing turning point
Adjust the width of template upper and lower surface cutting zone.By the workbench that pivots, cut out the barrel of tower,
Rigid plastics foam is cut into interior template and exterior sheathing simultaneously；For the making of cooling tower strut layer template, need
This layer of rigid plastics foam is cut into inside and outside 2 pieces of templates by the first circle along place, the center of circle, pillar upper and lower end cross section,
Plate 2 pieces is opened up in the half section making model pillar, and the plate of opening up made is attached to the upper and lower table of inside and outside template simultaneously
Face also makes this open up the plate semicircle center of circle to overlap with the pillar center of circle to be cut, use by power supply, pressure adjustable type transformator,
The circuit of heating wire composition, uses heating wire to cut out pillar in inside and outside template respectively.By each layer of well cutting
On the basis of interior template is installed by der group from the bottom to top and is placed on cooling tower model.Due to template half in each layer
Footpath is different, and during assembling, the upper surface of next layer of template and the lower surface of last layer template must align, in order to pour
The inner surface smooth and continuous of rear tower model.
Convert according to the likelihood ratio theory when cooling tower strut makes and configured diameter and the quantity of iron wire in post, welded
Iron wire skeleton, longitudinal iron wire exceeds certain length at model pillar two ends, for model pillar and basis, upper column
The overlap joint of cylinder；Use the sleeve pipe identical with model Post sections diameter, intercept the length identical with strut height, will
Iron wire skeleton is placed in sleeve pipe, and secures the cannula to, in the 1st layer column template, then pour predetermined in sleeve pipe
The mortar of match ratio.
The interior template of the 2nd～N shell is first assembled when making by cooling tower tower the most successively, then chooses
Meridian to, the diameter of hoop iron wire, quantity, fix in every layer of template meridian the most successively to, hoop ferrum
Silk, and meridian is welded to the cross point of iron wire and hoop iron wire.According to order from bottom to top, often install
One layer of exterior sheathing i.e. carries out pouring once, until whole cooling tower model pours complete.Wait to pour last
Layer model completes more than 28 day age the most dismountable inside and outside template, cooling tower reduced scale test model.
The thickness of every layer of cooling tower scaled model template is 100～250mm.
According to the inside and outside radius size of the cooling tower model corresponding to the upper and lower surface of every layer of template, adjust fixing
The width of the position control of the turning point upper and lower mouth of good every layer of cutting zone.
Cutting entablature template use 2 pieces of pillar half sections open up the center of circle of plate respectively with the center of circle, pillar upper and lower side cross section
Alignment, is respectively cut pillar in this layer of template.
During pillar location, first the position of template in upper supporting column layer is fixed on model basis, then passes through U-iron
Pillar sleeve is fixed in interior template by silk, then by longitudinal wire anchorage of lower end in basis, pours base the most again
Plinth, finally installs the exterior sheathing of this layer.
In making tower during wire gauze, first the interior template of the cylinder model of well cutting is pacified according to order from bottom to up
Install, then weld meridian the most on request to, hoop wire gauze at the interior template outer surface assembled.
This test model is used for the making Reinforced Concrete Cooling Tower highly more than 200m.
Compared with prior art, the invention have the advantages that
(1) it is to use diameter thinner heating wire that plastic foam is cut due to template construct, during its cutting
Precision easily controllable；Further, since template uses rigid plastics foam to make, when pouring mortar, template deformation is very
Little.Therefore, compared with other manufacture methods, the thickness of cooling tower reduced scale test model using this method to make is little,
Precision is high, and its minimum walled thickness can reach 5mm, and error can control the precision at 1mm；
(2) being that layering makes due to model template, and the cut lengths on every layer of upper and lower surface of template are by this
The absolute altitude of cutting position determines, therefore, the thickness of the cooling tower model thin-walled poured can be accomplished with cooling tower mould
The change of type height and consecutive variations；
(3) due to model template be layering make, when institute's hierarchy number is more, can preferably reflect the company of tower
Continuous hyperboloid or paraboloidal geometric properties.Compare with the wooden template construct of employing, use the test that this method makes
Model surface is smooth, continuous, without projection；
(4) materials such as mortar, pea gravel concreten, Gypsum Fibrosum can be used to make according to test objective and needs；
(5) this method is easy and simple to handle, low cost, material requested are prone to commercially find.
Accompanying drawing explanation
Fig. 1 is the structural representation making the model obtained；
Fig. 2 is schematic diagram during cutting board.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
In order to make Reinforced Concrete Cooling Tower reduced scale test model, the present invention can complete model system according to the following step
Make:
(1) design of model template.1. according to the bulk of cooling tower model, by cooling tower template along model
Short transverse is divided into N shell, determines the height of every layer of template respectively.Wherein, the 1st layer of template is cooling tower model
The template layer of pillar, form height is identical with model strut height, the 2nd～(N-1) layer be tower model template
Layer, the height of every layer of template is 100～250mm, and topmost one layer (i.e. n-th layer) is mouth die on tower model
Flaggy, its height deduct for cooling tower model height before (N-1) layer form height sum, as shown in Figure 1；②
The planar dimension maximum according to cooling tower and the planar dimension of rigid plastics foam, determine hard needed for every layer of template
The quantity of plastic foam, uses three pieces of independent plastic foam one layer of templates of composition in a horizontal plane；3. according to cold
But the size of tower reduced scale test model, calculates inside and outside footpath and the cutting zone on every layer of upper and lower surface of template respectively
Size；4. it is model entablature template due to the 1st layer, is different from top tower layer template, therefore the 1st layer of template
It needs to be determined that the radius of place, the center of circle, pillar upper and lower surface circle；5. n-th layer template is tower layer suitable for reading, its shape
Shape is special is different from middle part tower layer template, need to be further divided into tri-sublayers of N-a, N-b, N-c and be respectively cut.
(2) cutting of template.1. the cutting of tower template: the rigid plastics foam template that will be located in same layer is solid
Can be on the workbench of solid fixed-axis rotation due to one, by rigid plastics foam plate center and workbench rotary shaft pair
Together.Heating wire 1 is connected on the pressure adjustable type transformator 2 of pressure-adjustable, by the fixing turning point on workbench
Position, adjusting template cutting zone is suitable for reading, the width of end opening.Pivot workbench, cuts out the cylinder of tower
Wall, cuts into plastic foam interior template and exterior sheathing simultaneously, utilizes power supply 3 to control pressure adjustable type transformator 2
Voltage and heating wire 1 on the electric current that passes through；2. the cutting of column template is propped up: by the rigid plastics foam of entablature
Template cuts into inside and outside template along the circle at pillar upper and lower centre of surface place, makes pillar half section and opens up plate, will
This is opened up plate and is attached to the upper and lower surface of inside and outside template and makes to open up the center of circle, cross section upper and lower with pillar, the plate semicircle center of circle and overlap,
The hand-held heating wire being connected with pressure adjustable type transformator, cuts pillar respectively in inside and outside template,.
(3) template assemblies.Template in each layer of well cutting is installed and is placed on cold by der group from the bottom to top
But on the basis of tower model.Owing in each layer, template radius is different, the upper surface and upper of next layer of template during assembling
The lower surface of layer template must align, in order to the inner surface smooth and continuous of tower model after pouring.
(4) making of model iron wire skeleton.1. the making of pillar iron wire skeleton: by cooling tower scaled model pillar
Distributed steel requirement, make the iron wire skeleton of pillar in advance, meanwhile, use the plastic bushing with pillar same diameter,
Cut into the length identical with pillar.Post iron wire skeleton is placed in sleeve pipe, sleeve pipe is fixed on entablature template
In interior template.2. according to order from the bottom to top, according to the distributed steel requirement of scaled model, it is respectively welded in tower
Hoop and meridian are to iron wire, the wire gauze that composition is consistent with tower hyperbolic-parabolic.
(5) the pouring of model mortar.Use the mortar with relatively large fluidity, first pour the sleeve pipe with pillar
In, then according to bottom-up order, the exterior sheathing of one layer of tower is often installed, pours the mortar of one layer of tower,
Until all layer templates have been poured.
(6), after cooling tower scaled model has poured, after waiting 28 day age, inside and outside template, model are removed again
Curing period inside and outside template can prevent scattering and disappearing of model moisture content.
The above-mentioned description to embodiment is to be understood that and apply this for ease of those skilled in the art
Invention.These embodiments obviously easily can be made various amendment by person skilled in the art, and handle exists
The General Principle of this explanation is applied in other embodiments without through performing creative labour.Therefore, the present invention is not
Be limited to embodiment here, those skilled in the art according to the announcement of the present invention, the improvement that the present invention is made and
Amendment all should be within protection scope of the present invention.
Claims (7)
1. the manufacture method of ultra-large type Reinforced Concrete Cooling Tower reduced scale test model, it is characterised in that according to cold
But the bulk of tower scaled model, uses heating wire successively to cut the rigid plastics foam template of scaled model,
The iron wire using different model has welded pillar skeleton, the meridian after installing the interior template of every layer, in welding tower
To, hoop wire gauze, exterior sheathing the most gradually it is installed and pours cylinder, specifically using following steps:
(1) cooling tower scaled model template is made: use and be made up of power supply, pressure adjustable type transformator, heating wire
Circuit in heating wire rigid plastics foam template is cut, cutting entablature template also need to use prefabricated
Plate is opened up in post half section, needs to be divided into 3 straton moulds according to cooling tower model physical characteristic suitable for reading for the superiors' template
Plate is respectively cut, and the center of circle that cutting entablature template uses 2 pieces of pillar half sections to open up plate is cut with pillar upper and lower side respectively
Aliging in the center of circle, face, is respectively cut pillar in this layer of template；
(2) cooling tower scaled model pillar is made: include making pillar iron wire skeleton and pillar sleeve, pillar fixed
Position, the pouring of pillar；
(3) cooling tower scaled model tower is made: include making in tower wire gauze and tower model is suitable for reading, tower
In the location of cylinder inner and outer template and cylinder, mortar pours.
The manufacture method of ultra-large type Reinforced Concrete Cooling Tower reduced scale test model the most according to claim 1,
It is characterized in that, when making cooling tower scaled model template, turned to the position control cutting area of fixing point by adjustment
The size in territory.
The manufacture method of ultra-large type Reinforced Concrete Cooling Tower reduced scale test model the most according to claim 2,
It is characterized in that, the thickness of every layer of cooling tower scaled model template is 100～250mm.
The manufacture method of ultra-large type Reinforced Concrete Cooling Tower reduced scale test model the most according to claim 3,
It is characterized in that, according to the inside and outside radius size of the cooling tower model corresponding to the upper and lower surface of every layer of template,
Adjust the width of the position control upper and lower mouth of good every layer of cutting zone of fixing turning point.
The manufacture method of ultra-large type Reinforced Concrete Cooling Tower reduced scale test model the most according to claim 1,
It is characterized in that, during pillar location, first the position of template in upper supporting column layer is fixed on model basis, then passes through
Pillar sleeve is fixed in interior template by U-iron silk, then by longitudinal wire anchorage of lower end in basis, the most again
Pour basis, finally install the exterior sheathing of this layer.
The manufacture method of ultra-large type Reinforced Concrete Cooling Tower reduced scale test model the most according to claim 1,
It is characterized in that, in making tower during wire gauze, first by the interior template of the cylinder model of well cutting according to from bottom to up
Order install, then weld meridian the most on request to, hoop wire gauze at the interior template outer surface assembled.
The manufacture method of ultra-large type Reinforced Concrete Cooling Tower reduced scale test model the most according to claim 1,
It is characterized in that, this test model is used for the making Reinforced Concrete Cooling Tower highly more than 200m.
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| DE102011078016A1 (en) * | 2011-06-22 | 2012-12-27 | Aloys Wobben | tower manufacturing |
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| CN103612323B (en) * | 2013-11-27 | 2015-12-02 | 北京金风科创风电设备有限公司 | A kind of concrete member mould and application thereof |
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