CN107893500A - A kind of large-span concrete prismatic surface arch grid shell roof structure and preparation method thereof - Google Patents
A kind of large-span concrete prismatic surface arch grid shell roof structure and preparation method thereof Download PDFInfo
- Publication number
- CN107893500A CN107893500A CN201711399841.4A CN201711399841A CN107893500A CN 107893500 A CN107893500 A CN 107893500A CN 201711399841 A CN201711399841 A CN 201711399841A CN 107893500 A CN107893500 A CN 107893500A
- Authority
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- China
- Prior art keywords
- grid
- gutter
- prismatic surface
- arch
- broken line
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/08—Vaulted roofs
- E04B7/10—Shell structures, e.g. of hyperbolic-parabolic shape; Grid-like formations acting as shell structures; Folded structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/08—Vaulted roofs
- E04B7/10—Shell structures, e.g. of hyperbolic-parabolic shape; Grid-like formations acting as shell structures; Folded structures
- E04B7/105—Grid-like structures
Abstract
The invention discloses a kind of large-span concrete prismatic surface arch grid shell roof structure and preparation method thereof, the prismatic surface of structure is inscribed in round surface, after the huge load-bearing grid that cylinder is made up of main Broken Line Arch and crestal line beam, close rib flat board is divided in huge grid again, roof system toe is supported on marginal frame beam, and setting gutter collaboration marginal frame beam again to reach thrust on the anti-selection structure being made up of brace and side framed columns after undertaking roof system thrust, roof system overhang bracket is on gable framework.Structure fabrication can use full cast-in-place concrete mode or prefabricated assembled method.The present invention is used for storehouse, exhibitions, auditorium etc. and builds roof system, has the advantages that good endurance, rigidity are big, high capacity, low cost.
Description
Technical field
The invention belongs to building concrete technical field of structures, and in particular to build large span using Reinforced Concrete Materials
Structure type of prismatic surface Arch Reticulated Shell and preparation method thereof.
Background technology
Concrete circular cylinder shell structure is one of thin-walled space structure form more early applied, it by coverboard, side bar and
Tabula three parts collectively constitute.Stressed shell performance between two tabulas is similar to circular cross-section beam, and tabula need to be to housing shape
Into operative constraint, therefore in Long Span Roof Structures, the tabula and side bar sectional dimension needed for housing are larger, will influence to build
Build the use in space.When tabula be smaller than ripple it is wide when, face of cylinder shell will appear from arching, and larger thrust is unfavorable for side
The out-of-plane bearing capacity control of beam.When span or ripple are wide larger, the bearing capacity of face of cylinder shell is except in addition to by strength control, also needing
Stability bearing capacity is checked, when stabilization is unsatisfactory for requiring, ribbing is to improve the effective measures of Stability Analysis of Structures bearing capacity, now cylinder
Face shell is changed into face of cylinder housing with ribbing, i.e. reticulated shell.
When face of cylinder shell is constructed using cast-in-place mode, the structure type of curved adds template and the construction of support is stranded
It is difficult；During using prefabricated assembled construction method, to reduce the influence of stress concentration, prefabricated coverboard also needs to be fabricated to micro-bend bent plate,
And the connection for the strengthened shell that need to take measures, add the construction difficulty of housing.
Based on the disadvantages mentioned above of concrete circular cylinder shell, China has carried out concrete cylindrical veil in the sixties in last century
Shell structure applies work, and the Tongji University Auditorium built up in 1962 is connection square net cylindrical latticed shell, and rib is in space
Helical curve, the floor projection of each grid is rhombus, and 4 nodes of each grid are not on same absolute altitude, therefore roof boarding
For 2 pieces of triangular sheets, and relying on vertical joint bar pre-buried on rib and be connected with rib, the working sections of rib are located under roof boarding,
The side bar of reticulated shell is cut section bar for X-shaped, and (jasmine of threading recklessly, Yu Zaidao, the design and construction of Chinese toon Tongji University student's dining room of Feng are built
Journal, the 9th phase in 1962, P15-P19).The Urumqi Airport hangar built up the eighties in last century also uses identical
Latticed shell structure, it is not intended that (Lee writes the design and construction Structural Engineerings of people's reinforced column veil shells for the effect of roof boarding
Teacher, the 1st phase in 1987, P17-P20).Above-mentioned two arch reticulated shell is completed to construct using prefabrication and assembly construction mode, due to same spiral
There is angle in the rib of curve, therefore rib is indulged when muscle connect in node and needs to break bar bending, causes to indulge connection of the muscle in node
It is discontinuous, the reliability of connection needs connection stiffness to ensure, therefore it is more difficult to construct.
The content of the invention
The present invention is intended to provide a kind of new large-span concrete prismatic surface arch grid shell roof structure and preparation method thereof, is used
In the industry of the large spans such as storehouse, exhibitions, auditorium and public works, there is big rigidity, high capacity, durability and fire resistance
The advantages of good, template and low supporting difficulty, to overcome the shortcomings of existing concrete face of cylinder shell structure and latticed shell structure.
To solve the problems, such as the configuration of above-mentioned large-span concrete prismatic surface arch grid shell roof, the technical scheme that the present invention takes
It is：Round surface is inscribed in using prismatic surface, crest line is roof system crestal line, and prismatic surface is supported on marginal frame beam, with side framed columns phase
Main Broken Line Arch is set at even, roof system prismatic surface mammoth structure, then each net in mammoth structure are formed by main Broken Line Arch and crestal line
Close rib flat board is marked off using orthogonal spatial, orthogonal-diagonal lattice, oblique crossing inclined or three-way grid in lattice, thus obtains large span coagulation
Native prismatic surface encircles reticulated shell, and on gable Vierendeel girder, main Broken Line Arch need to earthward extend the two supports of reticulated shell, to transmit arch
Thrust is to basis.
To solve the problems, such as the making of above-mentioned large-span concrete prismatic surface arch grid shell roof, the technical solution adopted by the present invention
When：Roof system is made using cast-in-place mode, specific implementation step is：(1) full hall scaffold is set up.(2) whole components are laid
Template.(3) reinforcing bar of colligation whole component.(4) concrete of pouring structure whole component.(5) cast-in-place concrete reaches design
After intensity, scaffold and template are removed.Trickling problem when this technical scheme needs to take measures to control concrete cast-in-situ.
To solve the problems, such as the making of above-mentioned large-span concrete prismatic surface arch grid shell roof, the technical solution adopted by the present invention
Second,：Roof system is made using prefabricated assembled mode, specific implementation step is：(1) prepared roofing flat board and cross rib, and
The concreting thickness in the range of component placement backhouse plate thickness is reserved on prefabricated rib.(2) after setting up full hall scaffold, peace
Put the template of main Broken Line Arch and crestal line and assembling reinforcement.(3) prefabricated rib, the vertical muscle at connection rib end, and colligation join domain are laid
Stirrup.(4) top surface of colligation rib indulges muscle, lays the side form of rib join domain.(5) prepared roofing flat board is laid.(6) master is poured
Broken Line Arch, crestal line, rib join domain and the concrete on rib top.(7) cast-in-place concrete removes scaffold after reaching design strength.
The beneficial effects of the invention are as follows：(1) Path of Force Transfer is clear and definite, and load is mainly transmitted by main Broken Line Arch.By main Broken Line Arch
Mammoth structure is formed with roof system crestal line, it is the main force support structure of roof system.The multi-ribbed plate of each grid of mammoth structure is by roofing lotus
After load is partially transferred to crestal line, then reach on main Broken Line Arch, avoid existing reticulated shell and load is reached into side bar and causes side bar to set
Count the problem of difficult.(2) control of roof system absolute altitude is easy, and shuttering supporting is simple.Roof system absolute altitude is mainly by the break mark of main Broken Line Arch
Height control, each huge grid are plane, and the absolute altitude of remaining interior grid node of plane connects straight principle by 2 points
It is determined that thus greatly reduce the difficulty of construction of stay in place form and support.(3) compared with face of cylinder shell and latticed shell structure, subtract
The occupancy of space is lacked, has advantageously reduced the operating cost of air-conditioning, after shaping structures the concentration of sound will not be caused to show
As reducing Acoustic treatment cost.(4) technical solution of the present invention two is used, template can be used in turn, and reduce disappearing for template
Consumption, can greatly reduce the construction period, and eliminate the trickling problem of concrete when large area pours, it is ensured that the construction quality of roofing.
Round surface is cut into prismatic surface to construct reticulated shell by the present invention, and crest line is horizontal crestal line, is connected with side framed columns
Encircle as Broken Line Arch, Broken Line Arch collectively forms the main force support structure of reticulated shell with horizontal crestal line, the grid of each cylinder can with it is orthogonal just
Put, orthogonal-diagonal lattice, oblique crossing inclined or three-way grid.After the break absolute altitude of Broken Line Arch is controlled, by the curved surface of cylindrical latticed shell
Construction is changed into being folded flat surface construction, greatly reduces difficulty of construction and Path of Force Transfer is clear and definite.The present invention can be used for storehouse, auditorium, meeting
The industry such as exhibition and public building.
Brief description of the drawings
Fig. 1 is a kind of space schematic diagram of large-span concrete prismatic surface grid shell roof structure of the present invention；
Fig. 2 is a kind of floor map of large-span concrete prismatic surface grid shell roof structure of the present invention；Wherein L is roof system
Span；
Fig. 3 is a kind of forming principle schematic diagram of large-span concrete prismatic surface grid shell roof structure of the present invention；
Fig. 4 is Fig. 2 A-A diagrammatic cross-sections；
Fig. 5 is Fig. 2 B-B diagrammatic cross-sections；
Fig. 6 is gable framework elevational schematic view；
Fig. 7 is a kind of orthogonal grid organigram of large-span concrete prismatic surface grid shell roof structure of the present invention, its
Middle a, b are Gridding length；
Fig. 8 is the schematic diagram that crosses of rib and crestal line beam；
Fig. 9 is gutter organigram；
Figure 10 is roof system concreting schematic diagram, the casting direction of the arrow signal concrete in figure；
Figure 11 is prefabricated room panel schematic diagram；
Figure 12 is prefabricated cross rib schematic diagram；
Figure 13 is prefabricated gable frame column schematic diagram；
Figure 14 is prefabricated gable Vierendeel girder schematic diagram；
Figure 15 is gable Vierendeel girder, post connection diagram；
Figure 16 is the spatial relationship schematic diagram of prefabricated room panel and cross rib；
Figure 17 is the connecting structure schematic diagram of prefabricated rib
Description of reference numerals：The main Broken Line Archs of 1-；2- crestal line beams；3- transverse direction girt strips；4- longitudinal directions girt strip；5- roof boardings；6- sides
Vierendeel girder；The anti-push rods of 7-；8- side framed columns；9- gutters seal beam；10- gutter girt strips；11- gutter plates；12- gable frame columns；
13- gable framework interlayer beams；14- gable framework back timbers；15- gables, which cornice, seals beam；16- gables Vierendeel girder indulges muscle tie point；
17- gables frame column indulges muscle tie point；18- ribs indulge muscle tie point.
Embodiment
With reference to embodiment, the invention will be further described, but not as any limitation of the invention.
Refering to Fig. 1~Fig. 5, a kind of large-span concrete prismatic surface grid shell roof structure of the invention, using in prismatic surface
Round surface shaping is connected to, crest line is roof system crestal line beam 2, and main Broken Line Arch 1 is connected with side framed columns 8 and anti-push rod 7.In prismatic surface
On, the huge load-bearing grid of quadrangle is formed by main Broken Line Arch 1 and crestal line beam 2, subdivided orthogonal spatial in each huge grid, just
Friendship is tiltedly put, oblique crossing inclined or three-way grid close rib, is that horizontal girt strip 3 and longitudinal girt strip 4 and roof boarding 5 form by waffle beam
On huge grid, the toe of roof system is supported on marginal frame beam 6 close rib slab supporting medium.In each huge grid, close rib flat board
After transmitting load to periphery, the load that crestal line beam 2 is undertaken is transferred on main Broken Line Arch 1 again, therefore main Broken Line Arch 1 is reticulated shell
Main force transferring structure.The anti-selection structure of roof system is made up of anti-push rod 7 and side framed columns 8, is passed again after bearing the thrust of main Broken Line Arch 1
On the basis of being handed to.
Refering to Fig. 6, gable framework is mainly made up of gable frame column 12 and gable Vierendeel girder 13, and effect essentially consists in closing
Space, and the main Broken Line Arch 1 of end is changed into broken line Vierendeel girder.
Refering to Fig. 7 and Fig. 8, the close rib in a kind of huge load-bearing grid of large-span concrete prismatic surface grid shell roof structure is put down
Plate, grid configuration have four kinds of orthogonal spatial, orthogonal-diagonal lattice, oblique crossing inclined and three-way grid etc..Close rib flat board and main Broken Line Arch 1 are flat
Hand over, handed over the folding of crestal line beam 2.
Refering to Fig. 9, roof system sets row in the outside of marginal frame beam 6 in the horizontal plane after toe intersects with marginal frame beam 6
Water gutter, drainage gutter seals beam 9 by gutter waffle beam 10, gutter and gutter plate 11 collectively constitutes, and gutter is put equivalent to level
The vierendeel truss or diagonal web member truss put, roof system thrust is resisted jointly with frame 6.
The present invention can use cast-in-place concrete and prefabricated assembled two ways to implement.
Embodiments of the invention 1：Made using cast-in-place concrete mode, refering to Fig. 1 and Fig. 2, specific implementation step
For：
(1) reinforcing bar of the anti-push rod 7 of colligation and side framed columns 8 and its template is laid, the beam of casting concrete to marginal frame beam 6
Bottom absolute altitude.
(2) reinforcing bar of colligation gable frame column 12 and gable framework interlayer beam 13 and template is laid, casting concrete to mountain
The bottom elevation of wall framework back timber 14.
(3) reinforcing bar of marginal frame beam 6 and gable framework back timber 14 is pricked by side, and lays its side form；
(4) full hall scaffold is set up, lays main Broken Line Arch 1, crestal line beam 2, horizontal girt strip 3, longitudinal girt strip 4, gutter girt strip
10 and the bed die of gutter sealing beam 9, its side form and the bottom of roof boarding 5 and gutter plate 11 are laid after the reinforcing bar of the above-mentioned component of colligation
Mould.
(5) reinforcing bar of colligation roof boarding 5 and gutter plate 11
(6) Figure 10 is referred to, in a direction indicated by the arrow the symmetrical casting concrete of subregion.
(7) after cast-in-place concrete reaches design strength, scaffold and template are removed by roof system Central Symmetry.
Embodiments of the invention 2：Roof system is made using prefabrication and assembly construction mode, specific implementation step is：
(1) Figure 11 and Figure 12 is referred to, on ground using regularization template prefabricated room panel 5 and by horizontal girt strip 3 and longitudinal direction
The cross that girt strip 4 forms.When cross makes, the concrete in the range of the thickness δ of roof boarding 5 does not pour, the center of cross
At node, concrete need to protrude rib side per side and be not less than 50mm, the placement for rear prefabricated room panel 5 in place.
(2) Figure 13 and Figure 14 is referred to, prefabricated gable frame column 12 and gable Vierendeel girder 13, wherein gable frame column on ground
12 tops are pre-buried by angle steel and the built-in fitting 15 of bolt matching, in place interim of gable Vierendeel girder 13 when assemble for gable framework
Supporting.
(3) Fig. 1 and Fig. 2 is referred to, the reinforcing bar of the anti-push rod 7 of colligation and side framed columns 8 simultaneously lays its template, and casting concrete is extremely
The bottom elevation of marginal frame beam 6.
(4) refer to Fig. 1, Fig. 2 and Figure 15, lifting gable frame column 12 and gable Vierendeel girder 13 are in place, after correction position
Gable Vierendeel girder indulges muscle tie point 16 and connects longitudinal reinforcement beam-column at the vertical muscle tie point 17 of gable frame column.
(5) Fig. 1 and Fig. 2 is referred to, sets up full hall scaffold, lays marginal frame beam 6, gable framework back timber 14, main Broken Line Arch
1st, the bed die of crestal line beam 2, gutter girt strip 10 and gutter sealing beam 9, lays its side form, then lay gutter plate respectively after assembling reinforcement
11 bed die and colligation its reinforcing bar.
(6) Fig. 1, Fig. 2 and Figure 16 are referred to, lifts the prefabricated cross being made up of horizontal girt strip 3 and longitudinal girt strip 4, is corrected
Behind position, refering to Figure 17, indulged in rib and the vertical muscle of rib is connected at muscle tie point 18, lay the bed die and side form of link position；Lifting is pre-
Roof boarding 5 processed and correction position；The vertical muscle on the prefabricated cross rib top of colligation.
(7) marginal frame beam 6, gable framework back timber 14, main Broken Line Arch 1, crestal line beam 2, gutter girt strip 10, gutter sealing are poured
The concrete of beam 9 and gutter plate 11, prefabricated cross rib top and junction.
(8) after the intensity of whole concrete reaches design strength, scaffold and mould are symmetrically removed to both sides from roof system center
Plate.
The large-span concrete prismatic surface reticulated shell rigidity that the embodiment of the present invention 1 makes is preferable, but needs full hall template, and
Gradient larger part need to strictly control the slump of concrete, and the division in concreting region is determined by field test.
The speed of application for the large-span concrete prismatic surface reticulated shell that the embodiment of the present invention 2 makes is fast, prefabricated cross and mountain
When wall Vierendeel girder, post, joint need to reserve teeth groove, and top surface needs plucking.The strength grade of cast-in-place concrete need to compare precast concrete
The high one-level of strength grade.
Although the preferred embodiments of the present invention are described above-mentioned combination accompanying drawing, above-mentioned embodiment is only
It is schematical, and is not restricted, one of ordinary skill in the art is not departing under spirit of the invention enlightenment
The accommodation made in the scope of the present invention, within the scope of the present invention.
Claims (6)
1. a kind of large-span concrete prismatic surface encircles grid shell roof structure, it is characterised in that：The structure is by close rib flat board continuous phase
Folding is formed, and roof system toe is supported on marginal frame beam and sets horizontal gutter, and anti-selection structure, roofing overhang bracket are set on the outside of frame
On gable framework.
2. large-span concrete prismatic surface according to claim 1 encircles grid shell roof structure, it is characterised in that：The close rib
The broken line of flat board is crestal line beam, and the Broken Line Arch being connected with the anti-selection structure is main Broken Line Arch, and crestal line beam and main Broken Line Arch are formed
The huge load-bearing pillar surface grids of roof system.
3. large-span concrete prismatic surface according to claim 1 or 2 encircles grid shell roof structure, it is characterised in that：It is described
The grid of close rib flat board is subdivided in huge cylinder bearing net lattice, the grid pattern of close rib flat board have orthogonal spatial, it is orthogonal tiltedly
Put, four kinds of oblique crossing inclined and three-way grid etc., grid number during subdivided grid per side is not less than 5 lattice.
4. large-span concrete prismatic surface according to claim 1 encircles grid shell roof structure, it is characterised in that：It is described anti-to push away
Structure is by side framed columns and anti-push rod or anti-push away wall and forms.
5. large-span concrete prismatic surface according to claim 1 encircles grid shell roof structure, it is characterised in that：The level
Gutter is made up of gutter girt strip, sealing beam and gutter plate, and is linked as entirety with marginal frame beam, and gutter girt strip is vertical in the horizontal plane
In marginal frame beam or with marginal frame beam, sealing beam oblique, the structural shape of gutter is horizontal positioned vierendeel truss or diagonal web member
Truss.
6. a kind of preparation method of large-span concrete prismatic surface arch grid shell roof structure as claimed in claim 1, its feature
It is：The structure fabrication is made using full cast-in-place concrete mode；Or using cast-in-place gutter, huge load-bearing pillar surface grids concrete
And the assembled method of prefabricated girt strip and roof boarding makes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711399841.4A CN107893500A (en) | 2017-12-22 | 2017-12-22 | A kind of large-span concrete prismatic surface arch grid shell roof structure and preparation method thereof |
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| CN201711399841.4A CN107893500A (en) | 2017-12-22 | 2017-12-22 | A kind of large-span concrete prismatic surface arch grid shell roof structure and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590008A (en) * | 2018-05-04 | 2018-09-28 | 舜杰建设（集团）有限公司 | Fold shape roof system cast-in-place concrete construction method |
| CN110258890A (en) * | 2019-06-24 | 2019-09-20 | 南通大学 | A kind of broken line type exterior wall is connected the construction method of concrete structure with roofing |
| CN114352035A (en) * | 2022-03-18 | 2022-04-15 | 清华大学建筑设计研究院有限公司 | Large-span assembled combined arched heavy roof structure and construction method thereof |
| CN114575585A (en) * | 2022-04-01 | 2022-06-03 | 中建八局第二建设有限公司 | Special-shaped concrete structure formwork installation construction method |
| CN115075381A (en) * | 2022-07-06 | 2022-09-20 | 华诚博远工程技术集团有限公司 | Grid division method for single-layer curved surface space reticulated shell with special-shaped boundary and space reticulated shell |
| CN115450368A (en) * | 2021-06-09 | 2022-12-09 | 中铝国际(天津)建设有限公司 | Prefabricating method of spherical hyperbolic roof board |
| CN115717449A (en) * | 2022-11-24 | 2023-02-28 | 中国建筑设计研究院有限公司 | Reinforced concrete combined shell system and construction method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590008A (en) * | 2018-05-04 | 2018-09-28 | 舜杰建设（集团）有限公司 | Fold shape roof system cast-in-place concrete construction method |
| CN110258890A (en) * | 2019-06-24 | 2019-09-20 | 南通大学 | A kind of broken line type exterior wall is connected the construction method of concrete structure with roofing |
| CN115450368A (en) * | 2021-06-09 | 2022-12-09 | 中铝国际(天津)建设有限公司 | Prefabricating method of spherical hyperbolic roof board |
| CN115450368B (en) * | 2021-06-09 | 2024-03-22 | 中铝国际(天津)建设有限公司 | Prefabrication method of spherical hyperbolic roof board |
| CN114352035A (en) * | 2022-03-18 | 2022-04-15 | 清华大学建筑设计研究院有限公司 | Large-span assembled combined arched heavy roof structure and construction method thereof |
| CN114352035B (en) * | 2022-03-18 | 2022-06-21 | 清华大学建筑设计研究院有限公司 | Large-span assembled combined arched heavy roof structure and construction method thereof |
| CN114575585A (en) * | 2022-04-01 | 2022-06-03 | 中建八局第二建设有限公司 | Special-shaped concrete structure formwork installation construction method |
| CN115075381A (en) * | 2022-07-06 | 2022-09-20 | 华诚博远工程技术集团有限公司 | Grid division method for single-layer curved surface space reticulated shell with special-shaped boundary and space reticulated shell |
| CN115075381B (en) * | 2022-07-06 | 2024-03-01 | 华诚博远工程技术集团有限公司 | Grid division method of single-layer curved surface space net shell with special-shaped boundary and space net shell |
| CN115717449A (en) * | 2022-11-24 | 2023-02-28 | 中国建筑设计研究院有限公司 | Reinforced concrete combined shell system and construction method thereof |
| CN115717449B (en) * | 2022-11-24 | 2023-11-07 | 中国建筑设计研究院有限公司 | Reinforced concrete combined shell system and construction method thereof |
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