CN208668732U - A kind of large-span concrete prismatic surface arch grid shell roof structure - Google Patents
A kind of large-span concrete prismatic surface arch grid shell roof structure Download PDFInfo
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- CN208668732U CN208668732U CN201721810102.5U CN201721810102U CN208668732U CN 208668732 U CN208668732 U CN 208668732U CN 201721810102 U CN201721810102 U CN 201721810102U CN 208668732 U CN208668732 U CN 208668732U
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- grid
- gutter
- prismatic surface
- broken line
- roof system
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Abstract
The utility model discloses a kind of large-span concrete prismatic surfaces to encircle grid shell roof structure, the prismatic surface of structure is inscribed in round surface, after the huge load-bearing grid for being made of cylinder main Broken Line Arch and crestal line beam, close rib plate is divided in huge grid again, roof system slope foot is supported on marginal frame beam, and be arranged after gutter collaboration marginal frame beam undertakes roof system thrust and again reach thrust on the anti-selection structure being made of brace and side framed columns, roof system overhang bracket is on gable frame.Full cast-in-place concrete mode or prefabricated assembled method can be used in structure fabrication.The utility model builds roof system for storehouse, exhibitions, auditorium etc., has many advantages, such as that durability is good, rigidity is big, bearing capacity is high, low cost.
Description
Technical field
The utility model belongs to building concrete technical field of structures, and in particular to is built greatly using Reinforced Concrete Materials
The structure type of span prismatic surface Arch Reticulated Shell.
Background technique
Concrete circular cylinder shell structure is one of the 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 shell shape
At operative constraint, therefore in Long Span Roof Structures, tabula needed for shell and side bar sectional dimension are larger, will affect and build
Build the use in space.When the spacing of tabula is wide less than wave, arching will occur in cylindrical surface shell, and biggish thrust is unfavorable for side
The out-of-plane bearing capacity control of beam.In span or larger wave width, the bearing capacity of cylindrical surface shell is except also needing in addition to by strength control
Stability bearing capacity is checked, when stabilization is unsatisfactory for requiring, ribbing is to improve the effective measures of stable structure bearing capacity, at this time cylinder
Face shell becomes cylindrical surface shell with ribbing, i.e. reticulated shell.
When cylindrical surface shell is constructed using cast-in-place mode, the structure type of curved form increases template and the construction of support is tired
It is difficult；When using prefabricated assembled construction method, the influence concentrated to reduce stress, prefabricated coverboard also needs to be fabricated to micro-bend bent plate,
And the connection for the strengthened shell that need to take measures, increase the construction difficulty of shell.
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
The floor projection of helical curve, each grid is diamond shape, 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 connect with rib, the working sections of rib are located under roof boarding,
The side bar of reticulated shell cuts section bar for X-shaped, and (the design and construction of jasmine of threading recklessly, Yu Zaidao, Feng Zhichun Tongji University student's dining room is 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 effect (the design and construction Structural Engineering of Li Zhumin reinforced column veil shell of roof boarding
Teacher, the 1st phase in 1987, P17-P20).Above-mentioned two arch reticulated shell is all made of prefabrication and assembly construction mode and completes to construct, due to same spiral
There are angles for the rib of curve, therefore rib is indulged when muscle connects in node and needs to break bar bending, and vertical connection of the muscle in node is caused
Be it is discontinuous, the reliability of connection needs connection stiffness to guarantee, therefore it is more difficult to construct.
Utility model content
The utility model is intended to provide a kind of novel large-span concrete prismatic surface arch grid shell roof structure, for storehouse,
The industry of the large spans such as exhibitions, auditorium and public works, with rigidity is big, bearing capacity is high, durability and fire resistance are good, template
And the advantage that bearing difficulty is low, to overcome the shortcomings of existing concrete cylindrical surface shell structure and latticed shell structure.
To solve the problems, such as that above-mentioned large-span concrete prismatic surface encircles the configuration of grid shell roof, the technology that the utility model is taken
Scheme is: being inscribed in round surface using prismatic surface, crest line is roof system crestal line, and prismatic surface is supported on marginal frame beam, with frame
Main Broken Line Arch is arranged in column connecting place, constitutes roof system prismatic surface mammoth structure by main Broken Line Arch and crestal line, then in the every of mammoth structure
Close rib plate is marked off using orthogonal spatial, orthogonal-diagonal lattice, oblique crossing inclined or three-way grid in a grid, thus obtains large span
Reticulated shell is encircleed in concrete prism face, and on gable Vierendeel girder, main Broken Line Arch need to extend the two supports of reticulated shell to the ground, to transmit
The thrust of arch is to basis.
To solve the problems, such as that above-mentioned large-span concrete prismatic surface encircles the production of grid shell roof, the technology that the utility model uses
Scheme first is that: roof system, specific implementation step are made using cast-in-place mode are as follows: (1) set up full hall scaffold.(2) whole structures are placed
The template of part.(3) reinforcing bar of whole components is bound.(4) concrete of pouring structure whole component.(5) cast-in-place concrete reaches
After design strength, scaffold and template are removed.This technical solution needs trickling problem when taking measures to control concrete cast-in-situ.
To solve the problems, such as that above-mentioned large-span concrete prismatic surface encircles the production of grid shell roof, the technology that the utility model uses
Scheme second is that: roof system, specific implementation step are made using prefabricated assembled mode are as follows: (1) prepared roofing plate and cross rib,
And the concreting thickness within the scope of component placement backhouse plate thickness is reserved on prefabricated rib.(2) full hall scaffold is set up
Afterwards, the template of main Broken Line Arch and crestal line and assembling reinforcement are placed.(3) prefabricated rib is placed, the vertical muscle at rib end is connected, and binds connection
The stirrup in region.(4) muscle is indulged in the top surface for binding rib, places the side form of rib join domain.(5) prepared roofing plate is placed.(6) it pours
Build the concrete of main Broken Line Arch, crestal line, rib join domain and rib top.(7) cast-in-place concrete removes foot hand after reaching design strength
Frame.
The beneficial effects of the utility model are: (1) Path of Force Transfer is clear, load is mainly transmitted by main Broken Line Arch.By main folding
Line arch and roof system crestal line constitute mammoth structure, it is the main force support structure of roof system.The multi-ribbed plate of each grid of mammoth structure is by room
It after area load is partially transferred to crestal line, then reaches on main Broken Line Arch, avoids existing reticulated shell and load is reached into side bar and leads to side
The problem of beam difficult design.(2) roof system absolute altitude control is easy, and shuttering supporting is simple.Roof system absolute altitude is mainly by the folding of main Broken Line Arch
Point absolute altitude control, each huge grid is plane, and the absolute altitude of remaining grid node connects straight original by two o'clock in plane
Reason greatly reduces the difficulty of construction of stay in place form and support to determine.(3) with cylindrical surface shell and latticed shell structure phase
Than reducing the occupancy of space, advantageously reducing the operating cost of air-conditioning, not will cause the collection of sound after shaping structures
Middle phenomenon reduces Acoustic treatment cost.(4) technical solutions of the utility model two are used, template can be used in turn, and reduce mould
The consumption of plate can greatly reduce the construction period, and eliminate the trickling problem of concrete when large area pours, it is ensured that the construction of roofing
Quality.
Round surface is cut into prismatic surface to construct reticulated shell by the utility model, and crest line is horizontal crestal line, with side framed columns phase
Arch even is Broken Line Arch, and Broken Line Arch and horizontal crestal line collectively form the main force support structure of reticulated shell, and the grid of each cylinder can be just
Friendship just put, orthogonal-diagonal lattice, oblique crossing inclined or three-way grid.After controlling the break absolute altitude of Broken Line Arch, by cylindrical latticed shell
Curved surface construction becomes being folded flat surface construction, greatly reduces difficulty of construction and Path of Force Transfer is clear.The utility model can be used for storehouse,
The industry such as auditorium, exhibitions and public building.
Detailed description of the invention
Fig. 1 is a kind of space schematic diagram of large-span concrete prismatic surface grid shell roof structure of the utility model；
Fig. 2 is a kind of floor map of large-span concrete prismatic surface grid shell roof structure of the utility model；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 utility model；
Fig. 4 is the A-A diagrammatic cross-section of Fig. 2；
Fig. 5 is the B-B diagrammatic cross-section of Fig. 2；
Fig. 6 is gable frame elevational schematic view；
Fig. 7 is that a kind of orthogonal grid of large-span concrete prismatic surface grid shell roof structure of the utility model constructs signal
Figure, wherein 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, column connection schematic diagram；
Figure 16 is the spatial relationship schematic diagram of prefabricated room panel and cross rib；
Figure 17 is the connection structure diagram of prefabricated rib
Description of symbols: the main Broken Line Arch of 1-；2- crestal line beam；3- transverse direction girt strip；The longitudinal direction 4- girt strip；5- roof boarding；The side 6-
Vierendeel girder；The anti-push rod of 7-；8- side framed columns；9- gutter seals beam；10- gutter girt strip；11- gutter plate；12- gable frame column；
13- gable frame interlayer beam；14- gable frame top beam；15- gable, which cornices, seals beam；16- gable Vierendeel girder indulges muscle tie point；
17- gable frame column indulges muscle tie point；18- rib indulges muscle tie point.
Specific embodiment
Below with reference to embodiment, the utility model is described in further detail, but not as any limit to the utility model
System.
Refering to fig. 1~Fig. 5, a kind of large-span concrete prismatic surface grid shell roof structure of the utility model, using prism
Face is inscribed in round surface molding, and 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 prism
On face, the huge load-bearing grid of quadrangle is made of main Broken Line Arch 1 and crestal line beam 2, subdivided orthogonal spatial in each huge grid,
Orthogonal-diagonal lattice, oblique crossing inclined or three-way grid close rib are that lateral girt strip 3 and longitudinal girt strip 4 and roof boarding 5 form by waffle beam
Close rib slab supporting medium on huge grid, the slope foot of roof system is supported on marginal frame beam 6.In each huge grid, close rib is flat
After plate transmits load to periphery, the load that crestal line beam 2 is undertaken is transferred to again on main Broken Line Arch 1, therefore main Broken Line Arch 1 is reticulated shell
Main force transferring structure.The anti-selection structure of roof system is made of anti-push rod 7 and side framed columns 8, is born after the thrust of main Broken Line Arch 1 again
On the basis of being transferred to.
Refering to Fig. 6, gable frame is mainly made 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 become 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 flat
Plate, grid configuration have four kinds of orthogonal spatial, orthogonal-diagonal lattice, oblique crossing inclined and three-way grid etc..Close rib plate and main Broken Line Arch 1 are flat
It hands over, is handed over 2 folding of crestal line beam.
Refering to Fig. 9, row is arranged in the outside of marginal frame beam 6 in the horizontal plane after slope foot intersects with marginal frame beam 6 in roof system
Water gutter, drainage gutter are collectively constituted by gutter waffle beam 10, gutter sealing beam 9 and gutter plate 11, and gutter is equivalent to level and puts
The vierendeel truss or diagonal web member truss set resist roof system thrust with frame 6 jointly.
Cast-in-place concrete can be used in the utility model and prefabricated assembled two ways is implemented.
The embodiments of the present invention 1: being made of cast-in-place concrete mode, refering to fig. 1 and Fig. 2, specific implementation
Step are as follows:
(1) it binds the reinforcing bar of anti-push rod 7 and side framed columns 8 and places its template, the beam of casting concrete to marginal frame beam 6
Bottom absolute altitude.
(2) it binds the reinforcing bar of gable frame column 12 and gable frame interlayer beam 13 and places template, casting concrete to mountain
The bottom elevation of wall frame top beam 14.
(3) reinforcing bar of marginal frame beam 6 and gable frame top beam 14 is pricked by side, and places its side form；
(4) full hall scaffold is set up, main Broken Line Arch 1, crestal line beam 2, lateral girt strip 3, longitudinal girt strip 4, gutter girt strip are placed
10 and gutter sealing beam 9 bed die, bind the bottom that its side form and roof boarding 5 and gutter plate 11 are placed after the reinforcing bar of above-mentioned component
Mould.
(5) reinforcing bar of roof boarding 5 and gutter plate 11 is bound
(6) refering to fig. 10, the symmetrical casting concrete of subregion in a direction indicated by the arrow.
(7) after cast-in-place concrete reaches design strength, scaffold and template are removed by roof system central symmetry.
The embodiments of the present invention 2: roof system, specific implementation step are made using prefabrication and assembly construction mode are as follows:
(1) 1 and Figure 12 refering to fig. 1, on ground using regularization template prefabricated room panel 5 and by lateral girt strip 3 and longitudinal
The cross that girt strip 4 forms.When cross makes, the concrete within the scope of 5 thickness δ of roof boarding is not poured, the center of cross
At node, the every side of concrete need to protrude placement of the rib side not less than 50mm, for rear prefabricated room panel 5 in place.
(2) 3 and Figure 14 refering to fig. 1, prefabricated gable frame column 12 and gable Vierendeel girder 13 on ground, wherein gable frame column
The 12 pre-buried built-in fittings 15 by angle steel and bolt matching in top, gable Vierendeel girder 13 in place interim when for the assembly of gable frame
Bearing.
(3) refering to fig. 1 and Fig. 2, it binds the reinforcing bar of anti-push rod 7 and side framed columns 8 and places its template, casting concrete is extremely
The bottom elevation of marginal frame beam 6.
(4) refering to fig. 1, Fig. 2 and Figure 15, lift gable frame column 12 and gable Vierendeel girder 13 be in place, correction bit postpones
Gable Vierendeel girder is indulged and connects longitudinal reinforcement beam-column at muscle tie point 16 and the vertical muscle tie point 17 of gable frame column.
(5) refering to fig. 1 and Fig. 2, full hall scaffold is set up, marginal frame beam 6, gable frame top beam 14, main Broken Line Arch are placed
1, the bed die of crestal line beam 2, gutter girt strip 10 and gutter sealing beam 9, places its side form, then place gutter plate respectively after assembling reinforcement
11 bed die simultaneously binds its reinforcing bar.
(6) refering to fig. 1, Fig. 2 and Figure 16, the prefabricated cross that lifting is made of lateral girt strip 3 and longitudinal girt strip 4, correction
Behind position, refering to fig. 17, it is indulged in rib and connects rib at muscle tie point 18 and indulge muscle, place the bed die and side form of link position；Lifting is pre-
Roof boarding 5 processed simultaneously corrects position；Bind the vertical muscle on prefabricated cross rib top.
(7) marginal frame beam 6, gable frame top beam 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 utility model embodiment 1 makes is preferable, but needs full hall template,
And the slump of strict control concrete is needed in gradient larger part, 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 utility model embodiment 2 makes is fast, prefabricated cross
And when gable Vierendeel girder, column, joint need to reserve tooth socket, and top surface needs plucking.The strength grade of cast-in-place concrete need to be more mixed than prefabricated
The high level-one of solidifying soil strength grade.
Although the preferred embodiments of the utility model are described in above-mentioned combination attached drawing, above-mentioned specific embodiment
It is only schematical, and be not it is restrictive, those skilled in the art under the objective enlightenment of the utility model,
The accommodation made in the rights protection scope for not departing from the utility model, it is within the protection scope of the present utility model.
Claims (5)
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 plate continuous phase
Folding is constituted, and roof system slope foot is supported on marginal frame beam and sets horizontal gutter, sets anti-selection structure, roofing overhang bracket on the outside of frame
On gable frame.
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 plate 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 constituted
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: described
The grid of close rib plate is subdivided in huge cylinder bearing net lattice, the grid pattern of close rib plate have orthogonal spatial, it is orthogonal tiltedly
Put, four kinds of oblique crossing inclined and three-way grid etc., when subdivided grid the grid number on every side be 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: described anti-to push away
Structure is by side framed columns and anti-push rod or anti-pushes away what wall formed.
5. large-span concrete prismatic surface according to claim 1 encircles grid shell roof structure, it is characterised in that: the level
Gutter is by gutter girt strip, sealing beam and gutter board group at and being linked as entirety with marginal frame beam, 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 be horizontally arranged vierendeel truss or diagonal web member
Truss.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721810102.5U CN208668732U (en) | 2017-12-22 | 2017-12-22 | A kind of large-span concrete prismatic surface arch grid shell roof structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721810102.5U CN208668732U (en) | 2017-12-22 | 2017-12-22 | A kind of large-span concrete prismatic surface arch grid shell roof structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893500A (en) * | 2017-12-22 | 2018-04-10 | 贵州大学 | A kind of large-span concrete prismatic surface arch grid shell roof structure and preparation method thereof |
| CN110778110A (en) * | 2019-10-30 | 2020-02-11 | 中国建筑第八工程局有限公司 | Post-pouring method for plugging plate at hollow-out structure of hyperboloid diagonal grid concrete member |
| CN113026951A (en) * | 2021-03-15 | 2021-06-25 | 河北农业大学 | Bidirectional folded plate cylindrical surface latticed shell structure and construction method thereof |
-
2017
- 2017-12-22 CN CN201721810102.5U patent/CN208668732U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893500A (en) * | 2017-12-22 | 2018-04-10 | 贵州大学 | A kind of large-span concrete prismatic surface arch grid shell roof structure and preparation method thereof |
| CN110778110A (en) * | 2019-10-30 | 2020-02-11 | 中国建筑第八工程局有限公司 | Post-pouring method for plugging plate at hollow-out structure of hyperboloid diagonal grid concrete member |
| CN113026951A (en) * | 2021-03-15 | 2021-06-25 | 河北农业大学 | Bidirectional folded plate cylindrical surface latticed shell structure and construction method thereof |
| CN113026951B (en) * | 2021-03-15 | 2022-11-25 | 河北农业大学 | Bidirectional folded plate cylindrical surface latticed shell structure and construction method thereof |
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