CN103541543A - Resin lining steel molding plate for undevelopable cone curve face structure and manufacturing method thereof - Google Patents
Resin lining steel molding plate for undevelopable cone curve face structure and manufacturing method thereof Download PDFInfo
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- CN103541543A CN103541543A CN201310543895.9A CN201310543895A CN103541543A CN 103541543 A CN103541543 A CN 103541543A CN 201310543895 A CN201310543895 A CN 201310543895A CN 103541543 A CN103541543 A CN 103541543A
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Abstract
The invention discloses a resin lining steel molding plate for an undevelopable cone curve face structure. The resin lining steel molding plate comprises a steel framework manufactured according to a conventional method. The steel framework is fixedly connected with more than two trapezoidal panels, slits of 0-20mm are formed between the adjacent trapezoidal panels, the slits between the trapezoidal panels are sealed, and epoxy resin glass fiber layers are integrally arranged on the front of the trapezoidal panels and the slits of the trapezoidal panels to form the resin lining steel molding plate consistent with the shape of the undevelopable cone curve face. The invention further discloses a manufacturing method for the resin lining steel molding plate for the undevelopable cone curve face structure. By utilizing the characteristics of the steel molding plate and epoxy resin, the large steel framework resin lining steel molding plate having the existing strength and rigidity and conforming to the surface shape of the structure is obtained through a simple manufacturing process, the structure surface shape molding plate conforming to a design drawing is formed, and the design idea is achieved well.
Description
Technical field
The invention belongs to building field, relate in particular to a kind of can not exhibition and bore resin interlining steel form and preparation method thereof for curvilinear plane structure.
Background technology
Develop rapidly along with urban infrastructure construction, Interchanges in Cities, the large-scale structure such as overpass more and more tower between each city, people are not merely the demands in function for the pursuit of these structure, more start to pay close attention to its landscape effect, it is first-class that city manager has proposed function to builders, the construction theory of one bridge one scape, to meet the urban beautification demand day by day promoting, thereby special-shaped structure of all shapes and colors have been brought up, particularly Urban Bridge substructure particularly highlights, four directions vase-shaped, oval vase-shaped, hyperbolic line element is desk-top, the irregular special-shaped pier studs of various style such as cone curvilinear plane vase-shaped arise at the historic moment.These structure General Requirements are clear-water concrete structures, and stricter for the quality requirement of construction, difficulty of construction further strengthens.Form work engineering as one of quality assurance key element, the one, how to produce the template identical shaped with detail of design, the 2nd, how to guarantee that template surface is smooth, easement curve is smooth, the 3rd, how to reduce template construct and difficulty of construction, be the problem that we explore always.
At building field, formed very ripe clear-water concrete structure formwork construction technology in recent years, complete to construction technologies such as steel forms from wooden form, bamboo glue pattern plate, glass steel formwork, respectively there are its pluses and minuses.Because steel form self intensity, rigidity are high, the special benefits such as the number of turnover is many, and supporting is easy, particularly in large bridge, has its irreplaceable status at the large-scale structure of height.Therefore,, in larger abnormal curved surface structure form work engineering construction, the moulding manufacturing technology of steel form just seems particularly important.
The preparation method of special-shaped curved steel form is varied, common are replace curve by straight line method, cad expanded view method, swaging method etc., the starting point of these methods is to solve the forming technique problem of template, and the manufacturing technology key point that can find out template is the moulding of template.But, for opening up cone curvilinear plane structure steel form, there is following problem:
1. because structure surface is for can not open up cone curvilinear plane, while making template, cannot obtain expanded view.The blanking difficulty of form surfacing is larger, and splicing has very large difficulty.
2. template mostly is Large Steel template, by approximate expansion method, also cannot reach accurate blanking, and the deburring amount in manufacturing process is large (welding capacity is also larger) too, and weld seam is wider.
3. by replace curve by straight line method, make, its piece is many, and welding capacity is large, and distortion is difficult to control, and cannot guarantee that template is smooth excessively, can not meet the construction requirement of clear-water concrete.
Summary of the invention
The object of the present invention is to provide can not opening up that a kind of template surface is smooth, easement curve is smooth to bore curvilinear plane structure resin interlining steel form.
Another object of the present invention is to provide can not open up the preparation method of resin interlining steel form for cone curvilinear plane structure.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of can not exhibition bored curvilinear plane structure resin interlining steel form, comprise the steel frame of making according to a conventional method, on described steel frame, be fixedly connected with 2 above trapezoidal panel, between adjacent trapezoidal panel, form the gap of 0～20mm, seal the gap between described trapezoidal panel, on the front and the gap between trapezoidal panel of described trapezoidal panel, whole installation has epoxy resin fiberglass layer, forms the resin interlining steel form consistent with opening up cone curvilinear plane shape.
Above-mentioned can not exhibition bored the preparation method of resin interlining steel form for curvilinear plane structure, comprises the following steps:
Steps A, makes steel frame: according to conventional method, make steel frame;
Step B, makes trapezoidal panel: by replace curve by straight line method, calculate round up and down chord length, do to go to the bottom by the chord length calculating, curvilinear plane longitude bus arc length is done high, produces respectively trapezoidal panel;
Step C, trapezoidal panel fixing: described trapezoidal panel is fixedly connected on the intrados of described steel frame, forms the gap of 0～20mm between adjacent trapezoidal panel;
Step D, the laying of epoxy resin fiberglass layer: seal the gap between described trapezoidal panel, on the front and the gap between trapezoidal panel of described trapezoidal panel, whole installation has epoxy resin fiberglass layer, forms the resin interlining steel form consistent with opening up cone curvilinear plane shape.
Described step D comprises the following steps:
Step a: clean described trapezoidal panel;
Step b: paste the gap between described trapezoidal panel;
Step c: make epoxy resin fiberglass layer, comprise " five oily two cloth ": first floor epoxy resin, second layer epoxy resin, first floor glass fabric, shellring epoxy resins, second layer glass fabric, the 4th layer of epoxy resin, layer 5 epoxy resin; Preparation epoxy coating, utilizes epoxy coating and glass fabric to make the epoxy resin fiberglass layer of " four oily two cloth ";
Steps d: polishing: the epoxy resin fiberglass layer of " four oily two cloth " is polished, mended and fill out;
Step e: brushing layer 5 epoxy resin, complete the epoxy resin fiberglass layer of " five oily two cloth ", form resin interlining;
Step f: final inspection.
Wherein, in step c, described epoxy coating is the mixture of epoxy resin and curing compound, and by mass percentage, epoxy resin: curing compound is 95:15～105:25, adds the acetone diluted agent of gross mass 20～30% to dilute.
The gross thickness of described resin interlining is 2.0～3.0mm, and wherein first floor epoxy resin to the coating layer thickness of layer 5 epoxy resin is respectively 0.4～0.6mm.
Adopt provided by the invention can not exhibition to bore curvilinear plane structure resin interlining steel form, first make steel frame, then on steel frame, weld trapezoidal faces lath, the last epoxy resin fiberglass layer resin interlining steel form that integral manufacturing consists of epoxy coating and glass fabric in trapezoidal panel.Utilize the high strength of steel form, high rigidity, the high-adhesion of epoxy resin, flowable, moulding are easy to feature, and bi-material is in conjunction with application, produce to meet the resin interlining steel form of design idea and for form work engineering.With better simply manufacture craft, thereby obtain existing strength and stiffness, meet again the Large Steel skeleton resin lined steel template of structure surface configuration, form the structure surface configuration template relatively conforming to design drawing, realized preferably design idea.Resin interlining steel form integral hoisting dismounting, conventional method supporting, internal mechanical vibrates, and guarantees the decorative effect on special-shaped structure surface.
This transports scene to after can not opening up cone curvilinear plane structure and completing with resin interlining steel form, through the long-distance transports of nearly 800 kilometers, tests, and permanent deformation does not occur resin interlining steel form, and resin interlining does not have obscission.Through using checking, resin interlining steel form construction technology has following characteristics:
1. can not open up cone curvilinear plane structure resin interlining steel form, combine the advantage of epoxy resin and steel bi-material, make the complicated making that can not open up cone curvilinear plane shape template become easy thing, water that the structure smooth surface, the curve that cast out are smooth, global shape accordance is better.Preferably resolve abnormal shape and can not open up the moulding problem of cone curvilinear plane template.
2. save the consumption of steel plate, reduce loss, improve steel utilization ratio.Owing to adopting mechanical blanking, and be straight line, than using Methods of OFC-A cutting curve, can reduce scaling loss and leftover pieces, improve stock utilization.
3. resin interlining steel form curved sections adopts integral manufacturing and lifting, has reduced the difficulty of resin interlining steel form installation supporting, has improved efficiency of construction.Resin interlining steel form lifting supporting adopts mechanical hoisting manually to connect adjustment, to the intensity of resin interlining steel form, rigidity is actual checks, there is not permanent deformation and resin wear phenomenon, prove and can meet large section mould plate to the changeable demand of special-shaped structure shape.
4. can not open up the preparation method of resin interlining steel form for cone curvilinear plane structure, simple to operate, be shaped easily, processing rear surface is smooth, has improved the fineness of concrete surface, can obtain the curved surface of various shapes, meets the requirement of special-shaped template to shape.In addition, in resin interlining, add glass fiber material to make aggregate, improved intensity and the cracking resistance of resin interlining, thereby increased the number of turnover of resin interlining steel form.Can be popularized and applied in the making of other special-shaped template.Resin interlining, to the actual layer protecting film that formed of steel form, has improved the corrosion resistance of template, has extended its application life.Resin interlining has damage time very easily to repair, greatly reduced scrap may with the impact on construction speed.
Accompanying drawing explanation
Fig. 1 looks schematic diagram for opening up cone curvilinear plane vase type pier master.
Fig. 2 latitude circle rib annulus position view.
Fig. 3 is full-size drawing.
Fig. 4 is steel frame schematic diagram.
Fig. 5 is trapezoidal panel calculating chart.
Fig. 6 is trapezoidal panel schematic diagram.
Fig. 7 is that trapezoidal panel is welded to the partial structurtes schematic diagram on steel frame.
Fig. 8 is that the A of Fig. 7 is to schematic diagram.
Fig. 9 is the steel frame schematic diagram that is welded with trapezoidal panel.
In figure, 1-can not open up cone curvilinear plane ，2-drop shadow curve longitude bus, 3-steel frame, 4-connector flat die plate, 5-connector junction plate circular arc, 6-trapezoidal panel, 7-longitude element line rib, 8-pad, 9-latitude circle rib, the little back-up block of 10-, the little contiguous block of 11-.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing thereof, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
As shown in Figure 9, provided by the invention can not exhibition bored curvilinear plane structure resin interlining steel form, comprise the steel frame 3 of making according to a conventional method, on steel frame 3, be welded with a plurality of trapezoidal panel 6, the reverse side that trapezoidal panel 6 is trapezoidal panel with the face that steel frame 3 intrados are connected, the front that the face that trapezoidal panel 6 contacts with structure is trapezoidal panel.Between adjacent trapezoidal panel 6, form the gap of 0～20mm, these gaps seal with adhesive tape respectively, on the front and the gap between trapezoidal panel 6 of trapezoidal panel 6, integral manufacturing epoxy resin fiberglass layer, forms the resin interlining steel form consistent with opening up cone curvilinear plane shape.
Be illustrated in figure 1 nose circle cone curvilinear plane vase type pier, this pier stud both upper ends thereof shape is dash area in can not opening up cone curvilinear plane 1(Fig. 1) form.This pier stud cross section adopts on rectangle nose circle standard knot and connects nose circle cone curvilinear plane vase pattern, and linear vision is smooth, gives stocky aesthetic sensation.Pier stud pier is high 6.5 meters, and wherein straightway is 2.5 meters, 3.5 meters of frustum curved sections, and 0.5 meter of pier cap, this pier stud level cross-sectionn is long rectangle nose circle shape, long: 14.50 meters of end openings, 15.50 meters suitable for reading.Wide: minimum 1.30 meters of end opening, maximum 1.5 meters; Minimum 2.3 meters suitable for reading, maximum 2.5 meters.Both ends latitude bus arc radius is: end opening roundlet R75cm, and great circle R125cm suitable for reading, front projection outwards launches along short transverse, and the radius of curvature of drop shadow curve's longitude bus 2 at two ends is 6.138m.Side projection is taper.
Curvilinear plane 1 is bored in can not opening up of vase pattern bridge pier, and the traditional method of Pier Formwork construction is that template muscle frame is carried out by pattern, and panel is cut into some fritter panels (being replace curve by straight line), then assembled being welded by surface bus (warp-weft two-way) chord length.Owing to can not opening up the properties influence of cone curvilinear plane 1, blanking and welding have very large difficulty, can not accomplish that accurately piece is excessive, welding deformation all will have influence on the moulding of template, bring larger difficulty to follow-up construction.
A kind of can not exhibition provided by the invention bored the preparation method of resin interlining steel form for curvilinear plane structure, comprises the following steps:
Step 1, makes steel frame: can not open up the template part of cone curvilinear plane 1 as separate unit integral manufacturing, and control the method for plain line produce steel frame with latitude circule method and replace curve by straight line, formwork steel skeleton is similar to can not open up cone curvilinear plane shape.
1. as shown in Figure 2, can not open up cone curvilinear plane 1 along vertical decile 10 equal portions, spacing 350mm, the position of these equal portions is the position of latitude circle rib, latitude bus radius of circle size on each equal portions point position is calculated, then by the different latitude bus radius of circle size of calculating, carry out blanking, get the wide 80mm of rib, thick 8～10mm and be made into latitude circle rib annulus.In Fig. 2, vertical line and the angle that can not open up between the side projection line oblique line of boring curvilinear plane 1 are 8
0, establishing latitude bus radius of circle is X
i(i=0.1.2.3.4 ... 10): Xi=125-tan8
0[350-35 (10-i)], because the size calculating is structure dead size, each latitude bus radius of circle need to be strengthened to 7～9mm, that is: latitude bus radius of circle adds trapezoidal panel size and the thick resin interlining size of 2.5mm that 6.0mm is thick, forms latitude circle rib annulus inside dimension.
2. make connector flat die plate: owing to can not opening up cone curvilinear plane 1, as separate unit, make template, by position of halving, latitude circle rib is set, can form in template end connector junction plate circular arc 5, for the ease of being connected with adjacent flat template and installing and removing template facility, at this, design and produce connector flat die plate 4.
3. as shown in Figure 3, according to drop shadow curve's longitude bus 2 setting-outs on flat board that can not open up cone curvilinear plane, 1. the latitude bus radius of circle size calculating according to step again, according to latitude bus circle Along ent position, draw connector junction plate circular arc 5, according to connector junction plate circular arc 5, about making, totally four width are that 80mm thickness is the junction plate of 10mm, two of the junction plates of left and right are one group of boring, then with junction plate, produce respectively left and right connector flat die plate 4 for every group, flat die plate width is looked structure body characteristics, chooses 300～500mm.As shown in Figure 2, with this, do sidepiece connector flat die plate 4, then another piece junction plate of mutually same group is connected on connector flat die plate with screw, on this junction plate, press the line of latitude bus circle Along ent equal portions.
4. weld longitude element line rib: latitude circle rib annulus is divided into two semicircular ring from centre, notices that incision position will remove the surplus that 10mm is thick, i.e. the thickness of junction plate more.Then by the latitude circle rib semicircular ring two ends of the difference size of separating, weld with the corresponding bisectrix of junction plate on two connectors respectively.Latitude is justified after rib semicircular ring welds and the longitude of lower honest material element line rib is justified between rib semicircular ring at adjacent latitude by the distance uniform welding of interval 300mm again, the long 290mm of rib, wide 80mm, thick 8mm, the steel frame of many sashes of composition 300mm * 350mm.The longitude element line rib track of welding should meet the curvature track of drop shadow curve's longitude bus 2, and the edge of its welding panel one side, must not exceed latitude circle rib semicircular ring edge.As shown in Figure 4, the steel frame 3 for making.
In order to reduce the manufacture difficulty of template, can not open up the arc frustum of cone curvilinear plane 1 and be used as the frustum of a cone and treat, then panel, divide strip in echelon by the method for replace curve by straight line, be convenient to plate shearing machine for blanking.As shown in Figure 5 and Figure 6, the latitude bus radius of circle of R for strengthening in figure, a is action, X is chord length.By end opening latitude bus roundlet, middle circle and the great circle suitable for reading that can not open up cone curvilinear plane 1 of decile, by action a, equal 2mm and calculate circle chord length X:
, on the thick steel plate of 5mm, with the middle circle chord length unwrapping wire mapping calculating, determine in the effective circular arc of latitude bus middle circle and include several chord lengths, with this, determine end opening and round chord length number suitable for reading, three chord length numbers will equate.Middle circle chord length is as benchmark, by end opening latitude bus roundlet chord length, subtract 4mm and do trapezoidal base square, by latitude bus great circle chord length suitable for reading, subtract 4mm and do trapezoidal water table opening, the arc length that can not open up the vertical drop shadow curve longitude bus 2 of cone curvilinear plane 1 is trapezoidal high size, line forms trapezoidal, then by plate shearing machine for blanking, should look material, shearing equipment concrete condition trapezoidal panel 6 segmentation blankings.
1. according to step 2, shear after two trapezoidal panel 6 plates, first on the intrados of steel frame 3, try welding, trapezoidal panel 6 is placed on to the middle part of steel frame 3, the place that adjacent two trapezoidal panel 6 can be adjacent to is close to, along opening up cone curvilinear plane 1 vertical curve direction, by the place of being adjacent to, locate up and down electric welding, now the edge of two trapezoidal panel 6 can start from the place being adjacent to along separately producing gradually up and down gap, watch gap separately, within the widest part is controlled at 20mm, if the width in the widest part gap surpasses 20mm, trapezoidal gradient should be adjusted, reduce or strengthen the chord length size of end opening roundlet and great circle suitable for reading, then determine blank size.
2. on the intrados of steel frame 3, weld trapezoidal panel 6: the trapezoidal panel shearing 6 is pressed to circular arc, and radian is by the curvature of drop shadow curve's longitude bus 2, and object is for the ease of pasting easily with steel frame 3 arc track welderings.As shown in Figure 7 and Figure 8, trapezoidal panel 6 is welded on steel frame 3 one by one, order is from centre to both sides, during welding, should be noted that from end radially progressively spot welding, make trapezoidal panel 6 rounding ofves, be welded to preferably on steel frame 3, trapezoidal faces lath 6 all welds with the pad 8 that longitude element line rib 7 can contact, fusion length 10～20mm.The point not reaching, not welding by force, increases the rear welding of ramuscule bracer 10 while waiting until last reinforcing welding, avoids welding by force the slack problem of the curve causing.
As shown in Figure 9, the arch of steel frame 3 is contacted to placement with ground, carry out the spot-welded on of trapezoidal panel 6.After trapezoidal panel 6 is all welded, again steel frame 3 is turned, the arch of steel frame 3 upward, the point that trapezoidal panel 6 and steel frame element line rib 7 do not touch, with ramuscule bracer 10, add one by one strong weld, the position of little contiguous block 10 is determined by 300 * 350mm framework mid point.
In addition, in order to increase the rigidity of trapezoidal panel 6, at the outer rear side place of trapezoidal panel 6, the place large for gap can connect the trapezoidal panel on both sides, gap 6 with little contiguous block 11, and little contiguous block 11 intervals can suitably be relaxed by rib bar interval.
1. clean trapezoidal panel 6: by wet cloth wiped clean for the front of trapezoidal panel 6, dry after having the place of greasy dirt to clean with banana oil, simultaneously that solder joint slag, burr removing in trapezoidal panel 6 is clean, clean with sanding machine polishing if desired.
2. paste the gap between trapezoidal panel 6: in the front of trapezoidal panel 6, with the wide adhesive tape of 40mm, the gap between adjacent trapezoidal panel 6 is pasted one by one, while noting pasting, adhesive tape can not produce gauffer.
3. make epoxy resin fiberglass layer: first prepare epoxy coating, then utilize epoxy coating and glass fabric to make epoxy resin fiberglass layer.This epoxy resin fiberglass layer comprises " five oily two cloth ", brush epoxy coating five times, paste layer glass cloth, be specially first floor epoxy resin, second layer epoxy resin, first floor glass fabric, shellring epoxy resins, second layer glass fabric, the 4th layer of epoxy resin, layer 5 epoxy resin, these five layers of epoxy resin and layer glass cloth form epoxy resin fiberglass layer resin interlining.
In trapezoidal panel 6, brush epoxy resin: place steel frame 3, people stands in steel frame 3 intrados bottoms, brushing resin emulsion paint on the front of the trapezoidal panel 6 of steel frame.
Epoxy coating is the mixture of No. 6101 E44 epoxy resin and T31-B5 curing compound, and by mass percentage, epoxy resin: curing compound is 100:20, then adds the acetone diluted agent of gross mass 25% to dilute.No. 6101 epoxy resin and T31-B5 curing compound are deployed into compound, and every subharmonic amount is with 30 minutes brushing complete being limited, and multiplex polygamy is few with joining less.Acetone diluted agent is as the criterion with the suitable brushing of resin viscosity, is sure not excess, otherwise resin bed is difficult to solidify.Can look working time length and viscosity, add gradually in proportion.After mixing and stirring, with hairbrush, smear successively, how the resin bed of smearing be smeared to brush several times repeatedly, until resin tunic is uniformly distributed, bed thickness reaches requirement.Each is advisable without gravity flow vestige with liquid resin all over coating layer thickness.
Make the epoxy resin fiberglass layer of " four oily two cloth ":
First brush first floor epoxy resin, after 4～6 hours, after first floor epoxy resin solidifies substantially, brush again second layer epoxy resin, and horse back is pasted first floor glass fabric, with EW200-90 glass-fiber-fabric smooth paste second layer epoxy resin layer surface, then by the first floor glass fabric pasting, with coating roll, carry out roll extrusion bubble extruded.After the first cure of second layer epoxy resin, with tack-free, be advisable, brush again shellring epoxy resins, and horse back is pasted second layer glass glass-fiber-fabric, with EW200-90 glass-fiber-fabric smooth paste shellring epoxy layer surface, then by the second layer glass fabric pasting, with coating roll, carry out roll extrusion bubble is extruded.After the first cure of shellring epoxy resins, with tack-free, be advisable, then brush the 4th layer of epoxy resin.After the first cure of the 4th layer of epoxy resin, with atomized ash filler, recess, seam crossing are filled and led up, polishing after solidifying, then filler is polished again until panel rounding off treats that it is completely curing, approximately 12～14 hours, enters the whole operation of polishing.
4. polishing: the epoxy resin fiberglass layer of " four oily two cloth " is polished, mended and fill out.Steel frame 3 is turned upward and placed, the arc top of steel frame 3 contacts with ground, it is firm that steel frame 3 is steadily supported, people stands on the arcwall face in steel frame 3 trapezoidal panel 6 fronts, with the polish front of trapezoidal panel 6 of belt sander comprehensively, makes the front face surface of trapezoidal panel 6 smooth without shrinkage depression, then use wet cloth by surface dust wiped clean, check the whether place of not round and smooth and bubble pit, carry out atomized ash simultaneously and mend and fill out and polish, confirm after errorless to enter next procedure.
5. brushing layer 5 epoxy resin: steel frame 3 is again turned and propped up steady, people stands in the positive basifacial of trapezoidal panel 6 again, brush epoxy resin the 5th time, repeatedly several all over smearing evenly with hairbrush push-and-pull, epoxy thickness is got over Bao Yuehao, and this is a very crucial procedure, is related to the forming quality of template, must be from new polishing brushing, until qualified if find that there is shrinkage depression after solidifying and trickle vestige.So far, complete the epoxy resin fiberglass layer of " five oily two cloth ", form resin interlining.The coating layer thickness of five layers of epoxy coating is respectively 0.5mm, and the gross thickness of resin interlining is 2.5mm.
6. final inspection: all operations are carried out final inspection after completing, the project emphasis of check has size, outward appearance, surface forming quality and edge to paste defect, pinpoints the problems and corrects in time, is delivered for use after qualified.
Claims (5)
1. can not open up cone curvilinear plane structure resin interlining steel form for one kind, comprise the steel frame (3) of making according to a conventional method, it is characterized in that, on described steel frame (3), be fixedly connected with 2 above trapezoidal panel (6), between adjacent trapezoidal panel (6), form the gap of 0～20mm, seal the gap between described trapezoidal panel (6), on the front and the gap between trapezoidal panel (6) of described trapezoidal panel (6), whole installation has epoxy resin fiberglass layer, forms the resin interlining steel form consistent with opening up cone curvilinear plane shape.
2. according to claim 1 can not exhibition bored the preparation method of resin interlining steel form for curvilinear plane structure, it is characterized in that, comprises the following steps:
Steps A, makes steel frame: according to conventional method, make steel frame (3);
Step B, makes trapezoidal panel: by replace curve by straight line method, calculate round up and down chord length, do to go to the bottom by the chord length calculating, curvilinear plane longitude bus arc length is done high, produces respectively trapezoidal panel (6);
Step C, trapezoidal panel fixing: described trapezoidal panel (6) is fixedly connected on the intrados of described steel frame (3), forms the gap of 0～20mm between adjacent trapezoidal panel (6);
Step D, the laying of epoxy resin fiberglass layer: seal the gap between described trapezoidal panel (6), on the front and the gap between trapezoidal panel (6) of described trapezoidal panel (6), whole installation has epoxy resin fiberglass layer, forms the resin interlining steel form consistent with opening up cone curvilinear plane shape.
3. according to claim 2 can not exhibition bored the preparation method of resin interlining steel form for curvilinear plane structure, it is characterized in that, described step D comprises the following steps:
Step a: clean described trapezoidal panel (6);
Step b: paste the gap between described trapezoidal panel (6);
Step c: make epoxy resin fiberglass layer, comprise " five oily two cloth ": first floor epoxy resin, second layer epoxy resin, first floor glass fabric, shellring epoxy resins, second layer glass fabric, the 4th layer of epoxy resin, layer 5 epoxy resin; Preparation epoxy coating, utilizes epoxy coating and glass fabric to make the epoxy resin fiberglass layer of " four oily two cloth ";
Steps d: polishing: the epoxy resin fiberglass layer of " four oily two cloth " is polished, mended and fill out;
Step e: brushing layer 5 epoxy resin, complete the epoxy resin fiberglass layer of " five oily two cloth ", form resin interlining;
Step f: final inspection.
4. according to claim 3 can not exhibition bored the preparation method of resin interlining steel form for curvilinear plane structure, it is characterized in that, in step c, described epoxy coating is the mixture of epoxy resin and curing compound, by mass percentage, epoxy resin: curing compound is 95:15～105:25, adds the acetone diluted agent of gross mass 20～30% to dilute.
5. according to claim 3 can not exhibition bored the preparation method of resin interlining steel form for curvilinear plane structure, it is characterized in that, the gross thickness of described resin interlining is 2.0～3.0mm, and wherein first floor epoxy resin to the coating layer thickness of layer 5 epoxy resin is respectively 0.4～0.6mm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108505974A (en) * | 2018-05-30 | 2018-09-07 | 大连船舶重工集团海洋工程有限公司 | Semi-submerged platform propeller seabed supporting tool |
| CN114603321A (en) * | 2022-03-07 | 2022-06-10 | 中交路桥建设有限公司 | Variable cross-section cylindrical pier hyperboloid template processing method |
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