CN105089184B - Multi-curved concrete hollow modelling wall construction method and rhombic hollow structure formwork - Google Patents

Multi-curved concrete hollow modelling wall construction method and rhombic hollow structure formwork Download PDF

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Publication number
CN105089184B
CN105089184B CN201510486346.1A CN201510486346A CN105089184B CN 105089184 B CN105089184 B CN 105089184B CN 201510486346 A CN201510486346 A CN 201510486346A CN 105089184 B CN105089184 B CN 105089184B
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template
angle steel
concrete
construction
walls
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CN105089184A (en
Inventor
赵山
李军
刘辉
陈发胜
皮佳亮
栾文爱
何志勇
韩宗慧
杨国富
姚元朝
崔秀生
夏海林
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Third Construction Engineering Co Ltd of China Construction Second Engineering Bureau Co Ltd
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Third Construction Engineering Co Ltd of China Construction Second Engineering Bureau Co Ltd
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Abstract

The invention discloses a multi-curved concrete hollow modelling wall construction method and a rhombic hollow structure formwork. The construction method comprises the following steps that 1, three-dimensional modelling is performed on a multi-curved concrete hollow modelling wall through a computer; 2, the formwork is designed and manufactured; 3, the lower portion of a wall body of the hollow modelling wall is measured and positioned; 4, spacer bars are implanted, wherein the spacer bars are implanted in a completed concrete foundation along the inner wall layer of the modelling wall; 5, a handling frame is erected; 6, an inner side formwork is installed; 7, an outer side formwork and the rhombic hollow structure formwork are installed; 8, concrete is poured, wherein the concrete is poured between the inner side formwork and the outer side formwork. The multi-curved concrete hollow modelling wall construction method and the rhombic hollow structure formwork have the advantages that the computer three-dimensional model construction simulation technology and measuring network control position construction technology are adopted, the measuring and positioning work can be completed only through a total station and a flexible rule, and the method and the formwork are easy and convenient to calculate, accurate in data, simple and practicable.

Description

Many curved surface concrete fretwork model wall construction methods and rhombus engraved structure template
Technical field
The invention belongs to technical field of concrete construction, more particularly to a kind of many curved surface concrete fretwork model wall constructions Method, and rhombus engraved structure template.
Background technology
In recent years, with the development of building industry, the change of people's aesthetic standards, building unique model is into beautiful in city Beautiful landscape, many surface modeling walls with its profile it is soft, light, active, visual perception is good the features such as, it has also become building is not The active element that can or lack, concrete moulding wall surface slightly processes back layer edge patch or covers with paint, lacquer, colour wash, etc., more can be in former concrete On the basis of show a kind of artistic effect of post-modernism.
But many surface modeling wall constructions are complex, and measurement and positioning, axial line control difficulty are big, required precision is high, and curvature is difficult To control, stencil design, making, mounting process are loaded down with trivial details, and concreting is also more difficult.
The content of the invention
The first object of the present invention is to provide the construction method of the concrete fretwork model wall of curved surface more than.
The second object of the present invention is to provide a kind of rhombus engraved structure template.
In order to realize above-mentioned first purpose, the present invention provides a kind of construction method of many curved surface concrete fretwork model walls, Comprise the following steps:
Many curved surface concrete fretwork model walls are carried out 3 D stereo modeling by step 1 using computer;
Step 2, stencil design and template construct;Make inner side template, outboard template, rhombus engraved structure template;Sizing Change Screw arbor with nut at both-ends drawknot is between inner side template and outboard template, between neighboring diamonds engraved structure template;Rhombus engraved structure The corner of template is fixed with prefabricated angle steel component;
The prefabricated angle steel component includes:The length of the first angle steel and the second angle steel, the first angle steel and the second angle steel and institute The thickness for stating moulding wall is equal;
The drift angle inner side of first angle steel is welded with bolt;
The drift angle inner side of second angle steel is welded with connecting plate, and the connecting plate is provided with connecting hole, the second angle steel Drift angle with connecting hole correspondence position is provided with through hole;
Step 3, the body of wall bottom measurement and positioning of fretwork model wall;
Step 4, is implanted into spacer bar;Along moulding, within the walls wall skin is implanted into positioning bar to complete concrete basis;
Step 5, sets up crosshead;
Step 6, inner side template is installed;
Step 7, outboard template, rhombus engraved structure model sheetinstallat;
Step 8, concreting, to pouring into concrete between inner side template and outboard template.
The construction method of many curved surface concrete fretwork model walls as above of the invention, it is further, three-dimensional in step 1 Three-dimensional model intuitively reacts the shape of many curved surface concrete fretwork model walls, enters for in-site measurement person in subsequent construction step Row surveying setting-out positioning, the processing of hollow out position typified form.
The construction method of many curved surface concrete fretwork model walls according to claim 1, it is characterised in that step 2 In, using 15mm thick wood plywood template, 40 × 70mm flitches make perpendicular rib, flitch spacing for inner side template, outboard template 200mm, 225 reinforcing bars do horizontal stupefied, bar spacing 200mm, Screw arbor with nut at both-ends quincuncial arrangement, and Screw arbor with nut at both-ends spacing 400mm × 400mm, Screw arbor with nut at both-ends adopts regularization Screw arbor with nut at both-ends;The engraved structure of rhombus adopts the thick overlay film wood plywood templates of 15mm, Engraved structure corner is fixed using prefabricated angle steel component, and engraved structure middle part is supported using 80 × 80mm flitches;It is two neighboring 3 road Screw arbor with nut at both-ends are set between the engraved structure of rhombus.
The construction method of many curved surface concrete fretwork model walls as above of the invention, further, the concrete mistake of step 3 Journey is as follows:The three-dimensional stereo model set up using step 1, by projection coordinate's meter of selected point in every section of circular arc summit, end points, arc Calculate, positioned using total powerstation;Measurement point is arranged and provided as follows:When arc radius are less than 9m, the spacing between measurement point Cannot be greater than 300mm, when arc radius are more than 9m, the spacing between measurement point cannot be greater than 500mm, survey crew it is whole with Track is measured and checked.
The construction method of many curved surface concrete fretwork model walls as above of the invention, further, the concrete mistake of step 4 Journey is as follows:Along moulding, within the walls wall skin is implanted into complete concrete basis14 positioning bars, positioning bar spacing 300, spacer bar length 300mm, implantation depth 150mm;Positioning steel tube is set in addition, and positioning steel tube is connected using galvanized wire with positioning bar;Positioning steel tube is tight Lattice control perpendicularity, are fixed using horizontal steel pipe and crosshead.
The construction method of many curved surface concrete fretwork model walls as above of the invention, further, the concrete mistake of step 5 Journey is as follows:Inner side template sets up crosshead away from outboard template side, crosshead and the structure reliability drawknot that finishes, inner side template It is reliably connected with crosshead using positioning steel tube.
The construction method of many curved surface concrete fretwork model walls as above of the invention, further, the concrete mistake of step 6 Journey is as follows:Inner side template adopts integral formwork support, dissipates the scattered mode torn open of spelling and arranges;By the spacer bar being implanted into, and crosshead The positioning steel tube control inner side template radian of upper setting, and inner side template squareness measurement is carried out using line pendant, perpendicularity is inclined Difference control is within 3mm.
The construction method of many curved surface concrete fretwork model walls as above of the invention, further, the concrete mistake of step 7 Journey is as follows:After inner side template is installed, pilot measurement is carried out using steel ruler in inner side template, release the engraved structure and steel of rhombus The position line of muscle, checks with reference to three-dimensional modeling and total powerstation to position line angle point;Position line survey sets after finishing and carries out reinforcing bar Colligation, reinforcing bar uses galvanized wire colligation in process of binding with fixed Screw arbor with nut at both-ends, after the completion for the treatment of reinforcing bar colligation, carries out rhombus Engraved structure model sheetinstallat;Treat to carry out outboard template closing after the completion of rhombus engraved structure model sheetinstallat.
The construction method of many curved surface concrete fretwork model walls as above of the invention, further, the concrete mistake of step 8 Journey is as follows:Concreting point is carried out at least twice, is horizontal construction joint between the successively adjacent concrete for pouring;The coagulation Soil is pea gravel concrete, and slump scope is between 200 ± 20mm;In casting process using vibrating spear vibrate it is same When, the outside accessory attachment formula vibrator of inner side template and/or inner side template vibrates;Added with early strength agent in concrete;Concrete Added with swelling agent and polyacrylonitrile synthetic fibers.
In order to realize above-mentioned second purpose, the present invention provides a kind of rhombus engraved structure template, and it includes:
Prefabricated angle steel component, the prefabricated angle steel component includes:First angle steel and the second angle steel, the first angle steel and second jiao The length of steel is equal with the thickness of the moulding wall;The drift angle inner side of first angle steel is welded with bolt;Second angle steel Drift angle inner side be welded with connecting plate, the connecting plate is provided with connecting hole, the position corresponding with connecting hole of the drift angle of the second angle steel Through hole is installed;
Plank, four planks and four groups of prefabricated angle steel components constitute diamond structures, the both sides of plank be clipped in the first angle steel and Between second angle steel;
Overlay film wood plywood template, overlay film wood plywood template is fixed on board surface;
Diamond structure middle part is supported using 80 × 80mm flitches;
3 road Screw arbor with nut at both-ends are set between two neighboring diamond structure.
The invention has the beneficial effects as follows:
1st, using computer 3D model construction simulation technologies, measurement network control positioning construction technology;Total powerstation, tape measure are Measurement and positioning work can be completed, easy, data is calculated accurate, simple.
2nd, it is whole by inner side using computer 3D model construction simulation technology Computer Aided Design curved walls and hollow out position template Body installs plank sheathing, outside and does moulding, openwork part using regularization plank sheathing using plank sheathing and be aided with self-control modified form pair Sealing up screw is drawn, template, diamond block positioning and thickness of wall body is effectively ensured, speed of application is fast, cost-effective.
3rd, by using vibrating with accessory attachment formula vibrator on the outside of intensity pea gravel concrete and template, efficiently solving mixed Solidifying soil pours difficulty.Swelling agent and synthetic fibers are added to avoid the crack that inhomogeneous deformation and stress concentration cause.
Take concrete fretwork model wall to reach identical facade effect with steel construction moulding wall, compare steel construction moulding Wall effectively material-saving can take.Using many curved surface concrete fretwork model wall construction methods, wall body vertical degree is can effectively ensure that And thickness of wall body, it is to avoid later stage renewal expense.Using many curved surface concrete fretwork model wall construction methods, circular arc wall is solved The problems such as radian control is difficult, thickness of wall body is difficult to ensure that and concreting is difficult.
Description of the drawings
By the detailed description made in conjunction with the following drawings, above-mentioned and/or other aspects of the present invention and advantage will become Become apparent from and be easier to understand, these accompanying drawings are simply schematic, are not intended to limit the present invention, wherein:
Fig. 1 is the construction method flow chart of many curved surface concrete fretwork model walls of an embodiment of the present invention;
Fig. 2 is many curved surface concrete fretwork model wall schematic diagrames of an embodiment of the present invention;
Fig. 3 is the regularization Screw arbor with nut at both-ends schematic diagram of an embodiment of the present invention;
Fig. 4 sets up schematic diagram for the rhombus engraved structure template of an embodiment of the present invention;
Fig. 5 is the enlarged diagram in the A portions of Fig. 4;
Fig. 6 is the first angle steel schematic diagram of an embodiment of the present invention;
Fig. 7 is the second angle steel schematic diagram of an embodiment of the present invention;
Fig. 8 is the enlarged diagram in the B portions of Fig. 4;
Fig. 9 is the first angle steel schematic diagram of another kind embodiment of the invention;
Figure 10 is the second angle steel schematic diagram of another kind embodiment of the invention;
Figure 11 is the spacer bar implantation schematic diagram of an embodiment of the present invention;
Figure 12 for an embodiment of the present invention survey set up an office chord length calculate schematic diagram.
In accompanying drawing, the list of parts representated by each label is as follows:
1st, many curved surface concrete fretwork model walls, 2, the circular arc of the horizontal cross-section of moulding wall, 3, the engraved structure of rhombus, 4, Screw arbor with nut at both-ends, 41, screw rod, 42, locating sleeve, 43, metal gasket, 44, rubber cushion, 45, securing member, 5, prefabricated angle steel component, 51, One angle steel, the 52, second angle steel, 53, bolt, 54, connecting plate, 55, connecting hole, 56, through hole, 6, template, 61, plank, 62, reinforcing bar It is horizontal stupefied, 63, flitch, 7, concrete, 8, spacer bar, 9, positioning steel tube.
Specific embodiment
Hereinafter, many curved surface concrete fretwork model walls of the present invention and its reality of construction method are described with reference to the accompanying drawings Apply example.
The embodiment that here is recorded is the specific specific embodiment of the present invention, for illustrating the design of the present invention, It is explanatory and exemplary, should not be construed as the restriction to embodiment of the present invention and the scope of the invention.Except here record Implement exception, those skilled in the art can also be based on the application claims and specification disclosure of that using aobvious Other technical schemes being clear to, these technical schemes include any obvious using making for the embodiment recorded to here The technical scheme of substitutions and modifications.
The accompanying drawing of this specification is schematic diagram, aids in illustrating the design of the present invention, it is schematically indicated the shape of each several part And its correlation.Note that for the ease of clearly showing the structure of each part of the embodiment of the present invention, between each accompanying drawing Do not draw according to identical ratio.Identical reference marker is used to represent identical part.
As shown in Fig. 2 providing a kind of many curved surface concrete fretwork model walls 1 for the present invention, the level of the moulding wall is cut Face includes at least one section circular arc 2;Many curved surface concrete fretwork model walls have the engraved structure 3 of multiple rhombuses.
Fig. 3 illustrates the Screw arbor with nut at both-ends 4 used in many curved surface concrete fretwork model wall construction methods of the invention, its bag Include:
Screw rod 41, the two ends of the screw rod 41 have screw thread;
Locating sleeve 42, the length of the locating sleeve 42 is equal to the thickness -2 of -2 metallic gaskets of thickness of moulding wall 1 The thickness of individual rubber cushion;Locating sleeve 42 is enclosed within outside the screw rod 41;
Metal gasket 43, the quantity of the metal gasket 43 is two, and metal gasket 43 is arranged on the screw rod 41, and position respectively In the two ends of locating sleeve 42;
Rubber cushion 44, the quantity of the rubber cushion 44 is two, and rubber cushion 44 is arranged on the screw rod 41, and with the metal gasket The side of 43 remotely located sleeve pipe 42 is adjacent;
Securing member 45, the quantity of the securing member 45 is two, and the securing member 45 is screwed in the two ends of the screw rod 41.
As shown in figure 3, the securing member is fixed on two reinforcing bars horizontal stupefied 62, the effect of reinforcing bar horizontal stupefied 62 is further to carry Height improves form stable.
Fig. 5-10 illustrates the prefabricated angle steel component used in many curved surface concrete fretwork model wall construction methods of the invention 5.The prefabricated angle steel component includes:The length of the first angle steel 51 and the second angle steel 52, the first angle steel 51 and the second angle steel 52 with The thickness of the moulding wall 1 is equal;The drift angle inner side of first angle steel 51 is welded with bolt 53;The top of second angle steel 52 Angle inner side is welded with connecting plate 54, and the connecting plate 54 is provided with connecting hole 55, the drift angle of the second angle steel 52 with connecting hole 55 Correspondence position is provided with through hole 56.
Fig. 5-7 illustrates the prefabricated angle steel component of an embodiment of the present invention.The prefabricated angle steel component includes:First angle steel It is equal with the thickness of the moulding wall with the length of the second angle steel, the first angle steel and the second angle steel;The drift angle of first angle steel Inner side is welded with bolt;The drift angle inner side of second angle steel is welded with connecting plate, and the connecting plate is provided with connecting hole, and second The drift angle of angle steel is provided with through hole with connecting hole correspondence position.As shown in figure 5, the first angle steel and the second angle steel are by template 6 and plank 61 are clamped in centre, and the drift angle of the first angle steel as the template of one jiao of the engraved structure of rhombus.In the present embodiment, first The drift angle of angle steel and the second angle steel is 80 degree.When using, the prefabricated angle steel component of above-mentioned two embodiment is used simultaneously.
Fig. 8-10 illustrates the prefabricated angle steel component of another kind embodiment of the invention.The prefabricated angle steel component includes:First The length of angle steel and the second angle steel, the first angle steel and the second angle steel is equal with the thickness of the moulding wall;First angle steel Drift angle inner side is welded with bolt;The drift angle inner side of second angle steel is welded with connecting plate, and the connecting plate is provided with connecting hole, The drift angle of the second angle steel is provided with through hole with connecting hole correspondence position.As shown in figure 8, the first angle steel and the second angle steel are by the He of template 6 Plank 61 is clamped in centre, and the drift angle of the first angle steel as the template of one jiao of the engraved structure of rhombus.In the present embodiment, The drift angle of the first angle steel and the second angle steel is 100 degree.
As shown in figure 4, for the rhombus engraved structure template of an embodiment of the present invention, it includes:
Prefabricated angle steel component, the prefabricated angle steel component includes:First angle steel and the second angle steel, the first angle steel and second jiao The length of steel is equal with the thickness of the moulding wall;The drift angle inner side of first angle steel is welded with bolt;Second angle steel Drift angle inner side be welded with connecting plate, the connecting plate is provided with connecting hole, drift angle and the connecting hole correspondence position of the second angle steel It is provided with through hole;
Plank 61, four planks and four groups of prefabricated angle steel components constitute diamond structure, and the both sides of plank are clipped in the first angle steel And second between angle steel;
Overlay film wood plywood template(Template 6), overlay film wood plywood template is fixed on the surface of plank 61;
Diamond structure middle part is supported using 80 × 80mm flitches 63;
3 road Screw arbor with nut at both-ends are set between two neighboring diamond structure.
Lower combination accompanying drawing 1 illustrates the construction method of many curved surface concrete fretwork model walls of the invention.Construction method embodiment In material used it is as shown in table 1.
The material list of table 1
Fig. 1 is the construction method schematic flow sheet of many curved surface concrete fretwork model walls of an embodiment of the present invention, is somebody's turn to do Construction method is comprised the following steps:
Step 1, Computerized three-dimensional solid modelling;Set up the three of many curved surface concrete fretwork model walls by computer first Dimension three-dimensional model;Three-dimensional stereo model can intuitively react the shape of many curved surface concrete fretwork model walls, it is easy to subsequently apply In-site measurement person measures unwrapping wire positioning, the processing of hollow out position typified form during work step is rapid;
Step 2, stencil design and template construct;Metope template is using 15mm thick wood plywood template, and 40 × 70mm is wooden The perpendicular rib of side's work, flitch spacing 200mm, 225 reinforcing bars do horizontal stupefied, bar spacing 200mm, Screw arbor with nut at both-ends quincuncial arrangement, to drawing Screw rod spacing 400mm × 400mm, Screw arbor with nut at both-ends adopts regularization Screw arbor with nut at both-ends;The engraved structure of rhombus covers using 15mm is thick Film wood plywood template, rhombus corner is fixed using prefabricated angle steel component, and rhombus middle part is supported using 80 × 80mm flitches;For Ensure the sectional dimension of the engraved structure of rhombus, 3 road Screw arbor with nut at both-ends are set between the engraved structure of two neighboring rhombus, adopt Regularization Screw arbor with nut at both-ends;
In order to ensure the impression quality of concrete, all templates adopt new template, and brushing releasing agent;Adjacent two pieces of templates Intersecting part must adopt the thick flitch connections of 40mm, and the Continuous pressing device for stereo-pattern paper on the inside of template;Upper and lower two layer concrete joins position Put, hang under template, carried out to drawing using the through-wall bolt of lower-layer concrete topmost, and sponge is pasted on the inside of mouth under template Bar;Horizontal construction joint position is picked and chisels out soft layer, first snap the line with it is anodontia play inside and outside cut out horizontal line, chisel is then picked again;Pour 3~5cm thickness together is first poured during upper layer concrete and subtracts stone sand slurry with match ratio;
Step 3, body of wall bottom measurement and positioning;Many curved surface concrete fretwork model walls are polymorphic structure, and surveying setting-out is relative Complexity, this engineering application Computerized three-dimensional solid modelling technology, by every section of circular arc summit end points and Hu Zhong selected points projection coordinate Calculate, positioned using total powerstation, be to ensure that measured deviation is controlled within 5mm, measurement point is arranged and provided as follows:Work as circular arc Radius be less than 9m when, the spacing between measurement point cannot be greater than 300mm, when arc radius be more than 9m when, between measurement point between Away from cannot be greater than 500mm, survey crew's all-the-way tracking is measured and checked;
As shown in figure 12, the actual chord length surveyed between setting up an office is calculated, by theoretical chord length with actual chord length to comparing survey The survey for setting up an office sets precision and is checked;
Step 4, within the walls wall skin is implanted into complete concrete basis for the lower opening's edge moulding of inner side template14 positioning bars, between positioning bar Away from 300, spacer bar length 300mm, implantation depth 150mm;Positioning steel tube is set in addition, and positioning steel tube is using galvanized wire and positioning Muscle connects;Positioning steel tube strictly controls perpendicularity, is fixed using horizontal steel pipe and crosshead.The effect of positioning bar is easy for inner side Mouth positioning, ensure that body of wall curve meets design requirement under template.The set-up mode of spacer bar and positioning steel tube such as Figure 11 It is shown.
Step 5, sets up crosshead;Crosshead, crosshead and the structure reliability drawknot that finishes are set up in the side of inner side template, interior Side template is reliably connected using positioning steel tube with crosshead, can effectively ensure that inner side template resistance to overturning;
Step 6, inner side template is installed;For convenience of diamond block model sheetinstallat and reinforcing bar colligation, inner side template is abound with, using whole Body formwork, dissipates and spells the scattered mode torn open;By the spacer bar being implanted into, and the positioning steel tube control inner side template arranged on support body Radian, and mold plate verticality measurement is carried out using line pendant, perpendicularity deviation is controlled within 3mm, such as to find undesirable Region adjusts in time template to ensure installation accuracy;Inner side template positioning after the completion of install improvement regularization Screw arbor with nut at both-ends and according to Inner side template reinforcement means is fixed by inner side template;
Step 7, other parts model sheetinstallat
After inner side template is installed, pilot measurement is carried out using steel ruler in the inner side template for integrally installing, release diamond block And the position line of reinforcing bar, position line angle point is checked with reference to three-dimensional modeling and total powerstation;Position line survey sets after finishing and carries out Reinforcing bar colligation, is to ensure that reinforcing bar can meet body of wall arc, and reinforcing bar uses galvanized wire in process of binding with fixed Screw arbor with nut at both-ends Colligation, after the completion for the treatment of reinforcing bar colligation, carries out diamond block model sheetinstallat(As shown in Figure 4);Treat that diamond block model sheetinstallat completes laggard Row outboard template is closed, the same inner side template of outboard template reinforcing mode;
Step 8, concreting;The high 12.6m of concrete moulding wall, thickness of wall body 300mm, carry out in three times concrete and pour Build, pour for the first time to 4.7m, pour for the second time to 9.5m, pour for the third time to top(Apply in 4.7m, 9.5m setting level respectively Work is stitched, and treatment of construction joints mode is with common shear wall);
Moulding wall length of run is 146 meters, is divided to thing two independent sectors, does not stay and sets vertical construction joint;Due to concrete Moulding wall is interwoven by batter post and core space reinforcing bar is closeer, and vibrating spear is difficult to extend into bottom, according to normal concrete also very It is difficult to fall naturally, therefore concrete is changed to into pea gravel concrete, tune up concrete as far as possible on the premise of concrete strength is not affected Slump(200±20mm), while being vibrated using vibrating spear in casting process, accessory attachment formula vibrator vibrates on the outside of template To ensure that concrete smoothly falls, early strength agent is added in concrete for the ease of doing sth. in advance form removal, in order to ensure concrete compaction Property, cracking resistance increasing tougheness, concrete adds swelling agent and polyacrylonitrile synthetic fibers.
1st, using computer 3D model construction simulation technologies, measurement network control positioning construction technology;Total powerstation, tape measure are Measurement and positioning work can be completed, easy, data is calculated accurate, simple.
2nd, it is whole by inner side using computer 3D model construction simulation technology Computer Aided Design curved walls and hollow out position template Body installs plank sheathing, outside and does moulding, openwork part using regularization plank sheathing using plank sheathing and be aided with self-control modified form pair Sealing up screw is drawn, template, diamond block positioning and thickness of wall body is effectively ensured, speed of application is fast, cost-effective.
3rd, by using vibrating with accessory attachment formula vibrator on the outside of intensity pea gravel concrete and template, efficiently solving mixed Solidifying soil pours difficulty.Swelling agent and synthetic fibers are added to avoid the crack that inhomogeneous deformation and stress concentration cause.
Each technical characteristic of above-mentioned disclosure is not limited to disclosed and further feature combination, and those skilled in the art are also Can according to the purpose of invention carry out between each technical characteristic other combination, to realize that the purpose of the present invention is defined.

Claims (10)

1. a kind of construction method of many curved surface concrete fretwork model walls, comprises the following steps:
Many curved surface concrete fretwork model walls are carried out 3 D stereo modeling by step 1 using computer;
Step 2, stencil design and template construct;Make inner side template, outboard template, rhombus engraved structure template;Screw arbor with nut at both-ends Drawknot is between inner side template and outboard template, between neighboring diamonds engraved structure template;The corner of rhombus engraved structure template Fixed with prefabricated angle steel component;
The prefabricated angle steel component includes:The length of the first angle steel and the second angle steel, the first angle steel and the second angle steel is made with described The thickness of type wall is equal;
The drift angle inner side of first angle steel is welded with bolt;
The drift angle inner side of second angle steel is welded with connecting plate, and the connecting plate is provided with connecting hole, the drift angle of the second angle steel Be provided with through hole with connecting hole correspondence position;
Step 3, the body of wall bottom measurement and positioning of fretwork model wall;
Step 4, is implanted into spacer bar;Along moulding, within the walls wall skin is implanted into positioning bar to complete concrete basis;
Step 5, sets up crosshead;
Step 6, inner side template is installed;
Step 7, outboard template, rhombus engraved structure model sheetinstallat;
Step 8, concreting, to pouring into concrete between inner side template and outboard template.
2. the construction method of many curved surface concrete fretwork model walls according to claim 1, it is characterised in that in step 1, Three-dimensional stereo model intuitively reacts the shape of many curved surface concrete fretwork model walls, for in-site measurement in subsequent construction step Member measures unwrapping wire positioning, the processing of hollow out position typified form.
3. the construction method of many curved surface concrete fretwork model walls according to claim 1, it is characterised in that in step 2, , using 15mm thick wood plywood template, 40 × 70mm flitches make perpendicular rib, flitch spacing 200mm for inner side template, outboard template, and 225 reinforcing bars do horizontal stupefied, bar spacing 200mm, Screw arbor with nut at both-ends quincuncial arrangement, Screw arbor with nut at both-ends spacing 400mm × 400mm, to drawing Screw rod adopts regularization Screw arbor with nut at both-ends;The engraved structure of rhombus is using 15mm thick overlay film wood plywood template, engraved structure four Angle is fixed using prefabricated angle steel component, and engraved structure middle part is supported using 80 × 80mm flitches;The hollow out of two neighboring rhombus 3 road Screw arbor with nut at both-ends are set between structure.
4. the construction method of many curved surface concrete fretwork model walls according to claim 1, it is characterised in that step 3 Detailed process is as follows:The three-dimensional stereo model set up using step 1, by the projection of selected point in every section of circular arc summit, end points, arc Coordinate is calculated, and is positioned using total powerstation;Measurement point is arranged and provided as follows:When arc radius are less than 9m, between measurement point Spacing cannot be greater than 300mm, when arc radius be more than 9m when, the spacing between measurement point cannot be greater than 500mm, survey crew All-the-way tracking is measured and checked.
5. the construction method of many curved surface concrete fretwork model walls according to claim 1, it is characterised in that step 4 Detailed process is as follows:Along moulding, within the walls wall skin is implanted into complete concrete basis14 positioning bars, positioning bar spacing 300, spacer bar Length 300mm, implantation depth 150mm;Positioning steel tube is set in addition, and positioning steel tube is connected using galvanized wire with positioning bar;Positioning steel The strict control perpendicularity of pipe, is fixed using horizontal steel pipe and crosshead.
6. the construction method of many curved surface concrete fretwork model walls according to claim 1, it is characterised in that step 5 Detailed process is as follows:Inner side template sets up crosshead away from outboard template side, crosshead and the structure reliability drawknot that finishes, interior Side template is reliably connected using positioning steel tube with crosshead.
7. the construction method of many curved surface concrete fretwork model walls according to claim 1, it is characterised in that step 6 Detailed process is as follows:Inner side template adopts integral formwork support, dissipates the scattered mode torn open of spelling and arranges;By the spacer bar being implanted into, and The positioning steel tube control inner side template radian arranged on crosshead, and inner side template squareness measurement is carried out using line pendant, will hang down Straight degree deviation is controlled within 3mm.
8. the construction method of many curved surface concrete fretwork model walls according to claim 1, it is characterised in that step 7 Detailed process is as follows:After inner side template is installed, pilot measurement is carried out using steel ruler in inner side template, release the hollow out knot of rhombus The position line of structure and reinforcing bar, checks with reference to three-dimensional modeling and total powerstation to position line angle point;Position line survey set finish it is laggard Row reinforcing bar colligation, reinforcing bar uses galvanized wire colligation in process of binding with fixed Screw arbor with nut at both-ends, after the completion for the treatment of reinforcing bar colligation, enters Row rhombus engraved structure model sheetinstallat;Treat to carry out outboard template closing after the completion of rhombus engraved structure model sheetinstallat.
9. the construction method of many curved surface concrete fretwork model walls according to claim 1, it is characterised in that step 8 Detailed process is as follows:Concreting point is carried out at least twice, is horizontal construction joint between the successively adjacent concrete for pouring;Institute It is pea gravel concrete to state concrete, and slump scope is between 200 ± 20mm;Vibrated using vibrating spear in casting process While, the outside accessory attachment formula vibrator of inner side template and/or inner side template vibrates;Added with early strength agent in concrete;It is mixed Solidifying soil is added with swelling agent and polyacrylonitrile synthetic fibers.
10. a kind of rhombus engraved structure template, it is characterised in that include:
Prefabricated angle steel component, the prefabricated angle steel component includes:First angle steel and the second angle steel, the first angle steel and the second angle steel Length is equal with the thickness of moulding wall;The drift angle inner side of first angle steel is welded with bolt;In the drift angle of second angle steel Side is welded with connecting plate, the connecting plate is provided with connecting hole, and the drift angle of the second angle steel is provided with logical with connecting hole correspondence position Hole;
Plank, four planks and four groups of prefabricated angle steel components constitute diamond structure, and the both sides of plank are clipped in the first angle steel and second Between angle steel;
Overlay film wood plywood template, overlay film wood plywood template is fixed on board surface;
Diamond structure middle part is supported using 80 × 80mm flitches;
3 road M16 Screw arbor with nut at both-ends are set between two neighboring diamond structure.
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CN107013036A (en) * 2017-04-28 2017-08-04 中国化学工程第三建设有限公司 A kind of vertical structure template bottom positions centering forming method
CN108952179A (en) * 2018-07-16 2018-12-07 深圳市中建南方建设集团有限公司 A kind of bumps mirror surface wall of the moulding and construction method of smallpox
CN109537769A (en) * 2018-11-28 2019-03-29 龙元建设集团股份有限公司 Space variable curvature abnormity wall city-wall brick masonry method
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