CN104405069B - A kind of curved surface hollow top board and construction method thereof - Google Patents
A kind of curved surface hollow top board and construction method thereof Download PDFInfo
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- CN104405069B CN104405069B CN201410532960.2A CN201410532960A CN104405069B CN 104405069 B CN104405069 B CN 104405069B CN 201410532960 A CN201410532960 A CN 201410532960A CN 104405069 B CN104405069 B CN 104405069B
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Abstract
A kind of curved surface hollow top board of the present invention and construction method thereof, relate to concrete component technical field.For existing curved surface hollow top board, template in construction process positioning difficulty is large, causes the problem that construction technology is comparatively complicated.It is the entirety be formed by connecting by several curved face unit, and curved face unit is parallelepiped; Curved face unit comprises parallel and spaced upper plate and lower roof plate, and between top board, interval arranges crisscross crossbeam, is provided with wood formwork system in closed cavity; Wood formwork system comprises roof plate template one, roof plate template two, beam template and rough ground bracing frame.Construction method: one, carry out overall setting-out to curved surface hollow top board, is divided into several curved face unit by its longitudinal axis along crossbeam; Two, framed bent system is set up to design elevation; Three, set up described roof plate template and beam template, carry out first time casting and compacting of concrete and obtain lower roof plate and crossbeam; Four, second time casting and compacting of concrete is carried out, obtained upper plate.
Description
Technical field
The present invention relates to concrete component technical field, particularly a kind of curved surface hollow top board and construction method thereof.
Background technology
Along with the develop and design in city, the change of City Building style is various, various surface modeling structure is because of its lines grace, artistic feeling is able to more by force increasing application, especially the application of curved surface top board in the palaces such as the artistic Room, exhibition hall, concert hall is extensive day by day, meanwhile, the soundproof effect for curved surface top board it is also proposed higher requirement.
At present, curved surface hollow top board utilizes air blanketing to block measure as overhead speaker, become a kind of mode of sound insulation and noise reduction of comparatively economic science, namely realized the transmission blockage of sound wave and vibration source by the air blanketing in curved surface hollow top board, and then realize the object preventing external interference.But because curved surface hollow top board structure is changeable, plate internal cavity pouring construction process is complicated, especially change large curved surface for radian, template in construction process can not accurately be located, and causes curved surface hollow concrete roof to water smashing difficulty of construction large.
Summary of the invention
For existing curved surface hollow top board, template in construction process positioning difficulty is large, cause the problem that curved surface hollow top board construction technique is comparatively complicated, the object of this invention is to provide a kind of curved surface hollow top board and construction method thereof, curved surface hollow top board is divided into multiple curved face unit, the casting and compacting of concrete construction at twice of each curved face unit, can either meet the designing requirement of sound insulation and noise reduction, be convenient to again concrete pouring construction.
The present invention solves the curved surface hollow top board that its technical problem adopts, and it is the entirety be formed by connecting by several curved face unit, and each described curved face unit is parallelepiped; Described curved face unit comprises parallel and spaced upper plate and lower roof plate, and between two pieces of described top boards, interval arranges crisscross crossbeam, is provided with wood formwork system in the cavity closed formed between two pieces of described top boards and described crossbeam; Described wood formwork system comprises the roof plate template one being close to described upper plate, the roof plate template two being close to described lower roof plate, fits in four pieces of beam templates of described cavity sidewalls, and is supported in described roof plate template one, rough ground bracing frame between roof plate template two and described beam template.
Preferably, described rough ground bracing frame comprises some parallel and frame set of equidistantly arrangement, each described frame set comprises to be close to and the first stull for supporting described roof plate template one, to be close to and for the second stull of spacing described roof plate template two, and the some vertical rods be connected between described first stull and described second stull, described vertical rod be square matrix arrangement, the two ends of described first stull and described second stull are all against on the described beam template of both sides.
Preferably, the both sides of described vertical rod are also provided with symmetrical diagonal brace, one end of described diagonal brace is connected with described vertical rod, its other end is connected with described first stull, the corner portion that described vertical rod bottom is connected with described second stull is also provided with the reinforcement block be made up of flitch, and two sides of described reinforcement block are fixedly connected with described second stull with described vertical rod respectively.
Preferably, some wooden grids are also equipped with between described first stull and described roof plate template one, described wooden grid is some parallel and flitches of equidistantly arrangement, and it is vertical with described first stull, and the level interval of adjacent two described flitches is less than or equal to 230mm.
In addition, present invention also offers the construction method of curved surface hollow top board, step is as follows:
Step one: overall setting-out is carried out to described curved surface hollow top board, the space structures unwrapping wire of described curved surface hollow top board is transformed in plane, and described curved surface hollow top board is divided into several curved face unit along the longitudinal axis of crossbeam to be onstructed, each described curved face unit is parallelepiped;
Step 2: set up framed bent system to design elevation;
Step 3: set up described roof plate template two, beam template and rough ground bracing frame with described framed bent system for relying on, and carry out first time casting and compacting of concrete, obtained described lower roof plate and described crossbeam;
Step 4: lay described roof plate template one on described rough ground bracing frame, and carry out second time casting and compacting of concrete, obtained described upper plate, completes the construction of described curved surface hollow top board.
Preferably, in described step 2, described framed bent system comprises the framed bent set up by montant and cross bar, and Steel Structure, set up described framed bent to described curved surface hollow top elevation place, described Steel Structure is lifted in order successively the correspondence position of crossbeam to be onstructed, fixing after alignment, described cross bar to be erected on described Steel Structure and with described montant fastening, then, by described Steel Structure handling to described other symmetrical regions of curved surface hollow top board repeating, determine the absolute altitude of symmetrical region montant described in other, at framed bent top erection cross bar fixed by fastener, complete the installation of described framed bent system.
Preferably, described Steel Structure is the trussed construction be welded by reinforcement bar, and its upper chord is consistent with the radian of corresponding crossbeam to be onstructed with the radian of lower chord.
Preferably, also comprise in described step 3, between described first stull and described roof plate template one, lay wooden grid, described wooden grid is made up of some parallel and flitches that is equidistantly arrangement, and it is vertical with described first stull, the level interval of adjacent two described flitches is less than or equal to 230mm.
Preferably, before described step 3 and step 4, adjusting concrete slump is 90mm ~ 110mm.
Preferably, in the casting and compacting of concrete construction of described step 3 and described step 4, for soft region, plastic sheeting is adopted to cover concreting; For the region that the gradient is larger, steel fabric sheet is adopted to cover concreting, and on the embedded bar of described steel fabric sheet colligation in described curved surface hollow top board.
Effect of the present invention is:
One, curved surface hollow top board of the present invention is formed by connecting by multiple curved face unit, each curved face unit is parallelohedron structure, make the construction of curved surface hollow top board little by changing greatly, be convenient to accurate location and the concrete pouring construction of template, above-mentioned curved face unit is by upper plate, lower roof plate, be positioned at crossbeam between the two and wood formwork system composition, because lower roof plate and crossbeam are that the first pouring concrete is smash construction and completed, in its cavity, wood formwork system construction is very convenient, make in cavity, to leave over any metallic supports that can become overhead speaker, and upper plate is completed in the construction of second time casting and compacting of concrete, to close above-mentioned cavity, the curved surface hollow top board that above-mentioned working procedure completes, the designing requirement of sound insulation and noise reduction can either be met, be convenient to again concrete pouring construction.
Two, the construction method of curved surface hollow top board of the present invention, its central principle utilizes infinitesimal thought that space arcuate structure unwrapping wire is transformed into location plane completing curved surface hollow top board, curved surface hollow top board carries out casting and compacting of concrete at twice, and adopt wood formwork system to support and not form removal scheme, first, formwork is carried out to lower roof plate and crossbeam and carries out first time casting and compacting of concrete, then, wooden form and rough ground bracing frame formwork is set up in cavity area, carry out second time casting and compacting of concrete, finally build curved surface hollow top board, construction method Template Location precision of the present invention is high, effectively can solve the construction problem of cavity, and working procedure is compact, it is convenient to control, man-hour and cost can be reduced, and solve the flow field problem of concrete on domatic by the mode reducing concrete flowability and cover film or steel fabric sheet, avoid causing plate thickness phenomenon pockety because of concrete flowability, ensure that construction quality.
Accompanying drawing explanation
Fig. 1 is the local surface circle of equal altitudes of the embodiment of the present invention two curved surface hollow top board;
Fig. 2 is the schematic diagram in the embodiment of the present invention two, curved surface hollow top board being divided into curved face unit;
Fig. 3 is the structural representation of part Steel Structure in the embodiment of the present invention two;
Fig. 4 is the structural representation of lower roof plate in the embodiment of the present invention two, crossbeam and rough ground bracing frame;
Fig. 5 is the structural representation of the embodiment of the present invention one curved surface hollow top board;
Fig. 6 is the stereogram of the embodiment of the present invention one curved surface hollow top board.
Detailed description of the invention
A kind of curved surface hollow top board proposed the present invention below in conjunction with the drawings and specific embodiments and construction method thereof are described in further detail.According to explanation below and claims, advantages and features of the invention will be clearer.Below by cited embodiment by reference to the accompanying drawings, technology contents of the present invention and feature will be described in detail.Need to illustrate in addition, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.For sake of convenience, hereinafter described " on ", D score is consistent with the upper and lower direction of accompanying drawing, but this can not become the restriction of technical solution of the present invention.
Embodiment one: for the working design of certain rehearsal studio of symphony orchestra, composition graphs 1 to Fig. 5 illustrates the curved surface hollow top board of the present embodiment, as shown in Figure 2, curved surface hollow top board is the entirety be formed by connecting by several curved face unit 100, each curved face unit 100 is parallelepiped, and (parallelepiped i.e. six faces are the polyhedrons of parallelogram, or there is the hexahedron that three pairs of opposites are parallel), as shown in Figure 5, above-mentioned curved face unit 100 comprises parallel and spaced two pieces of top boards, be respectively lower roof plate 10 and upper plate 30, between lower roof plate 10 and upper plate 30, interval arranges crisscross crossbeam 20, two pieces of top boards (10,30) and in the cavity 60 closed formed between crossbeam 20 wood formwork system is provided with, the beam template (53,54) that above-mentioned wood formwork system comprises the roof plate template 1 being close to upper plate 30 soffit, the roof plate template 2 52 being close to lower roof plate 10 upper surface and four pieces fit in cavity 60 sidewall, and be supported in roof plate template 1, rough ground bracing frame between roof plate template 2 52 and beam template (53,54).Only be described with curved face unit 100 longitudinal sectional drawing, therefore, the two pieces of beam templates being parallel to paper in Fig. 5 are not shown herein.
Curved surface hollow top board of the present invention is formed by connecting by multiple curved face unit 100, each curved face unit 100 is parallelohedron structure, make the construction of curved surface hollow top board little by changing greatly, be convenient to accurate location and the concrete pouring construction of template, above-mentioned curved face unit 100 is by upper plate 30, lower roof plate 10, be positioned at crossbeam 20 between the two and wood formwork system composition, because lower roof plate 10 and crossbeam 20 are that casting and compacting of concrete has been constructed for the first time, in the cavity 60 that upper end is uncovered, wood formwork system construction is more convenient, make can not leave over any metallic supports that can become overhead speaker in cavity 60, then, upper plate 10 is completed in the construction of second time casting and compacting of concrete, to close above-mentioned cavity 60, through the curved surface hollow top board that above-mentioned working procedure completes, the designing requirement of sound insulation and noise reduction can either be met, be convenient to again concrete pouring construction, this curved surface hollow top board is particularly useful for the construction of the building top layer curved roof considering soundproof effect.
Above-mentioned rough ground bracing frame comprises some parallel and frame set of equidistantly arrangement, Fig. 5 is only the diagram of a frame set, each frame set comprises to be close to and for the first stull 41 of roof supporting template 1, to be close to and for the second stull 42 of limit top plate template 2 52, and the some vertical rods 43 be connected between the first stull 41 and the second stull 42, the two ends of above-mentioned first stull 41 and the second stull 42 are all against on the beam template (53,54) of both sides.Visible, above-mentioned rough ground bracing frame is set up in the cavity 60 that lower roof plate 10 and crossbeam 20 are formed, and has both played the effect of limit top plate template 2 52 and beam template (53,54), again for the erection of roof plate template 1 provides stable support.Preferably, the level interval of adjacent two frame set is 400mm ~ 800mm, and the present embodiment two preferred 600mm of frame set spacing, can either meet the pressure of roof plate template 1 and upper plate 30, can not waste construction material again because spacing is overstocked.Vertical rod 43 be square matrix arrangement, the level interval of adjacent two vertical rods 43 is 400mm ~ 800mm, the preferred 600mm of the present embodiment, first stull 41 pressure can be evenly passed to lower roof plate 10 by vertical rod 43, make the structure of curved surface hollow top board more stable, in addition, the first stull 41, second stull 42 and vertical rod 43 are made by the flitch that cross sectional dimensions is 50mm × 100mm, draw materials conveniently, reduce construction cost.
Further, for strengthening the support strength of vertical rod 43, the both sides of vertical rod 43 are also provided with symmetrical diagonal brace 44, one end of diagonal brace 44 is connected with vertical rod 43, the other end of diagonal brace 44 is connected with the first stull 41, vertical rod 43 top is connected with the first stull 41 is stable, similar, the reinforcement block 46 be made up of flitch is also provided with in vertical rod 43 bottom and the second stull 42 junction, two sides of reinforcement block 46 are fixedly connected with the second stull 42 with vertical rod 43 respectively, and vertical rod 43 bottom is connected with the second stull 42 is stable.
Roof plate template 1 in above-mentioned wood formwork system, roof plate template 2 52 and beam template (53,54) are made by wooden splint's material, the advantages such as wooden splint has that little, the breadth of distortion is large, easy construction, non-warpage, band tensile mechanical performance are good, be particularly useful for the formwork for placing of curved surface concrete structure, preferably nine clamping plate are as template for the present embodiment, and namely thickness is the wooden splint of 9mm.Because wooden splint has certain pliability, for ensureing planeness and the stability of roof plate template 1, also be provided with between first stull 41 and roof plate template 1 and be equipped with some wooden grids 45, above-mentioned wooden grid 45 is some parallel and flitches of equidistantly arrangement, and it is vertical with the first stull 41, the level interval of adjacent two flitches is less than or equal to 230mm, flitch cross sectional dimensions is 50mm × 100mm, visible, adjacent two flitch level intervals are less than the level interval between the first stull 41, make the roof plate template 1 above wooden grid 45 more smooth, to ensure the construction quality of curved surface hollow top board.
Embodiment two: the present embodiment is still for the working design of certain rehearsal studio of symphony orchestra, and composition graphs 1 to Fig. 5 illustrates the construction method of curved surface hollow top board, and concrete steps are as follows:
S101: as shown in Figure 2, overall setting-out is carried out to curved surface hollow top board, the space structures unwrapping wire of curved surface hollow top board is transformed in plane, complete the location of curved surface hollow top board, curved surface hollow top board is divided into several curved face unit 100 along the longitudinal axis ax of crossbeam 20 to be onstructed, each curved face unit 100 is parallelepiped, and namely the arc longitudinal section of curved face unit 100 replaces by parallelogram, and the absolute altitude of each node of curved face unit 100 is determined;
S102: set up framed bent system to design elevation;
S103: as shown in Figure 4, sets up roof plate template 2 52, beam template (53,54) with framed bent system for relying on, and rough ground bracing frame, and carries out first time casting and compacting of concrete, obtained lower roof plate 10 and crossbeam 20;
S104: as shown in Figure 5, rough ground bracing frame is laid roof plate template 1, and carries out second time casting and compacting of concrete, and obtained upper plate 30, completes the construction of curved surface hollow top board.
Specifically, in above-mentioned steps S102, framed bent system comprises the framed bent set up by montant and cross bar, and Steel Structure 70 (shown in Fig. 3), first, set up framed bent to curved surface hollow top elevation place, the verticality of montant is strictly controlled when setting up, tower crane is coordinated Steel Structure 70 to be lifted in order successively the correspondence position of curved surface hollow roof rail 20 to be onstructed, Steel Structure 70 is the trussed constructions be welded by the reinforcement bar of 50mm × 50mm × 5mm, its upper chord is consistent with the radian of corresponding crossbeam 20 with the radian of lower chord, the absolute altitude of each node of Steel Structure 70 is calculated in conjunction with design drawing, and checked by the absolute altitude value of crossbeam 20, until Steel Structure 70 after corresponding crossbeam 20 alignment, cross bar is set up on Steel Structure 70, and be fixed in vertical rod 43, in order to determine the absolute altitude of other framed bent vertical rod 43 further, flitch is shelved in the middle of adjacent two Steel Structure fixed 70, flitch spacing is identical with montant spacing, after montant reaches design elevation, remove flitch, subsequently, Steel Structure 70 is winched to other symmetrical regions of curved surface hollow top board and repeats by tower crane cooperation, determine the absolute altitude of other montants of symmetrical region, the region of design elevation has been reached at montant, at framed bent top erection cross bar, and it is fixed with fastener, complete the installation of framed bent system.
Above-mentioned steps S103 also comprises, wooden grid 45 is laid between the first stull 41 and roof plate template 1, wood grid 45 is made up of some parallel and flitches that is equidistantly arrangement, and it is vertical with the first stull 41, the level interval of adjacent two flitches is less than or equal to 230mm, flitch cross sectional dimensions is 50mm × 100mm, and the construction being set to upper plate 30 of wooden grid 45 provides stable support.
Better, before above-mentioned steps S103 and the construction of S104 casting and compacting of concrete, concrete slump need be adjusted, by improving match ratio, reduce slump, configure the concrete being applicable to curved surface hollow top board construction, the preferred slump of the present embodiment is at the commercial concrete of 90mm ~ 110mm.
During above-mentioned steps S103 concrete pouring construction, build from below to up, and preferentially build a part of concrete at the position of crossbeam 20, make whole curved surface hollow top board be divided into some curved face unit 100 by crossbeam 20, from low to high in stairstepping, after crossbeam 20 casting and compacting of concrete completes, again casting and compacting of concrete construction is carried out to each curved face unit 100, first can water and smash 2/3 layer, water again before initial set and smash remaining 1/3 layer, and build while carry out receipts light, at least receive 3 times before concrete final set.Finally, the region less to the gradient, adopts plastic sheeting to carry out covering to keep out concrete lower slide pressing force; For the region that the gradient is larger, steel fabric sheet is adopted to cover, and steel fabric sheet colligation is on embedded bar, therefore, select the concrete of suitable slump, and in conjunction with the mode of covered with plastic film or steel fabric sheet, the phenomenon that concrete causes curved surface hollow top plate thickness uneven because of its mobility can be avoided, to ensure construction quality.
For the region that curved surface hollow top board mean camber slope change scope is larger, generally curved surface hollow top board is divided into two parts that the gradient is comparatively large and the gradient is less, takes the fish-plate splice method of different modes respectively.For the part that the gradient is less, because clamping plate itself can bend certain radian, therefore this performance of clamping plate itself is utilized, the region less to the gradient directly uses whole clamping plate to splice, and on the flitch of stickfast below clamping plate, consider there is certain recovery tension force after clamping plate bend, when stickfast clamping plate, adopt double nail to reinforce; For the part that the gradient is larger, as the region that grid in Fig. 1 is filled, when cannot utilize the bending property of clamping plate, adopt to change greatly little form and whole clamping plate are divided into two, the even method of one dividing into three, utilizes the splicing of fritter template to mould the larger curved surface of radian.
In sum, the construction method of curved surface hollow top board of the present invention, its central principle utilizes infinitesimal thought (i.e. Limit Thinking, if small unit, limiting case when it trends towards zero is discussed) space arcuate structure unwrapping wire is transformed into location plane completing curved surface hollow top board, curved surface hollow top board carries out casting and compacting of concrete at twice, and adopt the constructure scheme of wood formwork system support and not form removal, first, to lower roof plate and crossbeam formwork, carry out first time casting and compacting of concrete, then, to upper plate formwork in cavity, carry out second time casting and compacting of concrete, finally build curved surface hollow top board, construction method Template Location precision of the present invention is high, effectively can solve the construction problem of plate internal cavity, and working procedure is compact, it is convenient to control, can the reduction of erection time and reduce construction cost, further, solve the flow field problem of concrete on domatic by the mode reducing concrete flowability and cover film or steel fabric sheet, avoid causing plate thickness phenomenon pockety because of concrete flowability, ensure that construction quality.
Foregoing description is only the description to present pre-ferred embodiments, any restriction not to the scope of the invention, and any change that the those of ordinary skill in field of the present invention does according to above-mentioned disclosure, modification, all belong to the protection domain of claims.
Claims (10)
1. a curved surface hollow top board, is characterized in that: it is the entirety be formed by connecting by several curved face unit, and each described curved face unit is parallelepiped;
Described curved face unit comprises parallel and spaced two pieces of top boards, be respectively upper plate and lower roof plate, between lower roof plate and upper plate, interval arranges crisscross crossbeam, is provided with wood formwork system in the cavity closed formed between described two pieces of top boards and described crossbeam;
Described wood formwork system comprises the roof plate template one being close to described upper plate, the roof plate template two being close to described lower roof plate, fits in four pieces of beam templates of described cavity sidewalls, and is supported in described roof plate template one, rough ground bracing frame between roof plate template two and described beam template.
2. curved surface hollow top board according to claim 1, it is characterized in that: described rough ground bracing frame comprises some parallel and frame set of equidistantly arrangement, each described frame set comprises to be close to and the first stull for supporting described roof plate template one, to be close to and for the second stull of spacing described roof plate template two, and the some vertical rods be connected between described first stull and described second stull, described vertical rod be square matrix arrangement, the two ends of described first stull and described second stull are all against on the described beam template of both sides.
3. curved surface hollow top board according to claim 2, it is characterized in that: the both sides of described vertical rod are also provided with symmetrical diagonal brace, one end of described diagonal brace is connected with described vertical rod, its other end is connected with described first stull, the corner portion that described vertical rod bottom is connected with described second stull is also provided with the reinforcement block be made up of flitch, and two sides of described reinforcement block are fixedly connected with described second stull with described vertical rod respectively.
4. the curved surface hollow top board according to Claims 2 or 3, it is characterized in that: between described first stull and described roof plate template one, be also equipped with some wooden grids, described wooden grid is some parallel and flitches of equidistantly arrangement, and it is vertical with described first stull, the level interval of adjacent two described flitches is less than or equal to 230mm.
5. the construction method of the curved surface hollow top board as described in any one of Claims 1-4, step is as follows:
Step one: overall setting-out is carried out to described curved surface hollow top board, the space structures unwrapping wire of described curved surface hollow top board is transformed in plane, and described curved surface hollow top board is divided into several curved face unit along the longitudinal axis of crossbeam to be onstructed, each described curved face unit is parallelepiped;
Step 2: set up framed bent system to design elevation;
Step 3: set up described roof plate template two, beam template and rough ground bracing frame with described framed bent system for relying on, and carry out first time casting and compacting of concrete, obtained described lower roof plate and described crossbeam;
Step 4: lay described roof plate template one on described rough ground bracing frame, and carry out second time casting and compacting of concrete, obtained described upper plate, completes the construction of described curved surface hollow top board.
6. the construction method of curved surface hollow top board according to claim 5, it is characterized in that: in described step 2, described framed bent system comprises the framed bent set up by montant and cross bar, and Steel Structure, set up described framed bent to described curved surface hollow top elevation place, described Steel Structure is lifted in order successively the correspondence position of crossbeam to be onstructed, fixing after alignment, described cross bar to be erected on described Steel Structure and with described montant fastening, then, by described Steel Structure handling to described other symmetrical regions of curved surface hollow top board repeating, determine the absolute altitude of symmetrical region montant described in other, at framed bent top erection cross bar fixed by fastener, complete the installation of described framed bent system.
7. the construction method of curved surface hollow top board according to claim 6, is characterized in that: described Steel Structure is the trussed construction be welded by reinforcement bar, its upper chord is consistent with the radian of corresponding crossbeam to be onstructed with the radian of lower chord.
8. the construction method of curved surface hollow top board according to claim 5, it is characterized in that: also comprise in described step 3, wooden grid is laid between described first stull and described roof plate template one, described wooden grid is made up of some parallel and flitches that is equidistantly arrangement, and it is vertical with described first stull, the level interval of adjacent two described flitches is less than or equal to 230mm.
9. the construction method of the curved surface hollow top board according to any one of claim 5 to 8, is characterized in that: before described step 3 and step 4, adjusting concrete slump is 90mm ~ 110mm.
10. the construction method of curved surface hollow top board according to claim 5, is characterized in that: in the casting and compacting of concrete construction of described step 3 and described step 4, for soft region, adopt plastic sheeting to cover concreting; For the region that the gradient is larger, steel fabric sheet is adopted to cover concreting, and on the embedded bar of described steel fabric sheet colligation in described curved surface hollow top board.
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| CN107700835B (en) * | 2017-10-16 | 2019-08-30 | 泰安市骏鸣新材料有限公司 | A kind of reinforcing roof beam structure for construction |
| CN112031400B (en) * | 2020-09-03 | 2021-06-11 | 北京市第三建筑工程有限公司 | Construction method of concrete dome structure template |
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| DE2444737A1 (en) * | 1974-09-19 | 1976-04-08 | Horst Schmidt | Lightweight building unit with curved panels - contains spheroids in hollow space, filled with moulding composition |
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| CN101619602A (en) * | 2009-07-14 | 2010-01-06 | 南通宏华建筑安装有限公司 | Construction method of cast-in-place concrete cored slabs with self stationary high-strength thin-wall pipe internal mold |
| CN103174293A (en) * | 2011-12-23 | 2013-06-26 | 五冶集团上海有限公司 | Self-stabilizing type internal mold installation method for hollow floor slab |
| CN204282613U (en) * | 2014-10-11 | 2015-04-22 | 上海建工四建集团有限公司 | A kind of curved surface hollow top board |
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2014
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2444737A1 (en) * | 1974-09-19 | 1976-04-08 | Horst Schmidt | Lightweight building unit with curved panels - contains spheroids in hollow space, filled with moulding composition |
| US6718709B2 (en) * | 2002-04-11 | 2004-04-13 | Tim Koutras | Snap panel display unit |
| CN101619602A (en) * | 2009-07-14 | 2010-01-06 | 南通宏华建筑安装有限公司 | Construction method of cast-in-place concrete cored slabs with self stationary high-strength thin-wall pipe internal mold |
| CN103174293A (en) * | 2011-12-23 | 2013-06-26 | 五冶集团上海有限公司 | Self-stabilizing type internal mold installation method for hollow floor slab |
| CN204282613U (en) * | 2014-10-11 | 2015-04-22 | 上海建工四建集团有限公司 | A kind of curved surface hollow top board |
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