CN203546901U - Bamboo-structure single-layer spherical reticulated shell - Google Patents
Bamboo-structure single-layer spherical reticulated shell Download PDFInfo
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- CN203546901U CN203546901U CN201320594026.4U CN201320594026U CN203546901U CN 203546901 U CN203546901 U CN 203546901U CN 201320594026 U CN201320594026 U CN 201320594026U CN 203546901 U CN203546901 U CN 203546901U
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Abstract
The utility model relates to a bamboo-structure single-layer spherical reticulated shell. The bamboo-structure single-layer spherical reticulated shell comprises L bamboo rods, M bamboo connectors and N fixing hinge supports. Two ends of each radial bamboo rod, each weft bamboo rod and each diagonal bamboo rod of the L bamboo rods form the single-layer spherical reticulated shell body through the bamboo connectors. Each bamboo connector comprises steel insert pieces, a hollow ball, reinforcing steel pieces and bolts, an arced notch is reserved at one end of each steel insert piece and the steel insert pieces are welded on the hollow ball. A bolt hole is reserved at the other end of each steel insert piece, the bolts are respectively connected to the radial bamboo rods, the weft bamboo rods and the diagonal rods through the bolt holes. The reinforcing steel pieces are welded at the joints of the steel insert piece and the radial bamboo rods as well as the joints of the weft bamboo rods and the diagonal bamboo rods. The upper ends of a plurality of fixed hinge seats are mounted on the hollow balls of the bottom bamboo connectors, and the lower ends thereof are mounted on the top of the lower support structure. The bamboo-structure single-layer spherical reticulated shell has the advantages of light dead weight, convenience in construction, reasonable structural stress, high safety, simplicity and reliability in connection, maintainability and environmental friendliness.
Description
Technical field
The utility model is bright, and what relate to is a kind of bamboo structure Reticulated Domes, belongs to latticed shell structure technical field.
Background technology
In recent years, in order to meet building, use the requirement of function, large-span space structure is applied to engineering practice more and more, for example require to hold the stadiums of mass viewer audiences, for the Convention and Exhibition Center of academic, culture, business exchange, large-scale waiting hall for airplanes and hangar etc. all require a large activity space without any exception.And with rod member, arrange according to certain rules formation, the latticed shell structure that act as main stress characteristic with " film " because of its span ability large, good rigidity, material saving, the advantage such as structure is changeable, and aesthetic property is strong, become one of most widely used large span spatial structure, there is wide development space.The construction of at present large inter-network shell structure and the technology adopting thereof have become the important symbol of weighing a national building level, many magnificences and featured large inter-network shell structure, as Japan Nagoya sports palace, China national grand theater etc. has become local Symbol and the famous human landscape.
Reticulated Domes is pressed grid zoned format classification, mainly contains rib-ring-shaped, the moral of showing severity and strangles type, sunflower-shaped, three-way grid type, Kai Weite type, and wherein rib-ring-shaped sphere net case is comprised of footpath rib and ring bar, and integral rigidity is poor, is applicable to medium and small span structure; Schwedler reticulated dome is to increase brace on rib-ring-shaped basis, thereby has improved the rigidity of net shell and strengthened the ability that structure is resisted non-symmetrical load; Sunflower-shaped sphere net case forms network by herringbone brace, handsome in appearance, in order to increase rigidity and the stability of net shell, can add rod member at hoop, is applicable to big or middle span structure; Three-way grid type sphere net case grid becomes equilateral triangle on horizontal plane, and stress performance is good, good looking appearance; Triumphant Witter type sphere net case is divided into n(n=6,8,12 sphere ...) the fan-shaped curved surface of individual symmetry, then in each fan-shaped curved surface, by broadwise leverage and oblique leverage, this curved surface is divided into the more uniform triangular mesh of size again, in each fan-shaped plan, each left brace is parallel, and each right brace is parallel, and integral rigidity is high, good stability, is applicable to big or middle span structure.Aspect the type selecting of Reticulated Domes, should determine suitable net shell type according to the concrete application target of building, moulding demand and design feature.Although the grid zoned format of net shell is varied, selecting of its material of main part is very single, and most net shells are selected steel, and minority is aluminium alloys or concrete, not yet has the example that bamboo wood is applied to Single-layer Spherical Lattice Shell Structure at present.
China's bamboo timber resource is abundant, and bamboo 3-5 can become a useful person, shorter than the growth cycle of timber, and degradable, is a kind of rare living beings fast-growing material.If bamboo processing is reassembled into the structural member of good mechanical performance, be applied to latticed shell structure, will widen the application of bamboo structure and advance the development of Green environmental-protection building.Aspect mechanical property, bamboo wood has good tension, resistance to compression and flexural strength, is a kind of natural building materials, as the bamboo tower of the Dai nationality, is exactly the exemplary that bamboo wood is applied to building construction.But the stress performance difference of the physiological bending that bamboo wood forms in Natural growth process and band and rift grain has affected its mechanical property to a certain extent, has limited its scope of application.Along with scientific and technological progress, though existing process technology and equipment can guarantee the profile degree of accuracy and the mechanical strength of the rear bamboo rod member of processing, be subject to the restriction of bamboo structure connected mode, its range of application fails to be widened always.Aspect bamboo structure connection, common connected mode is colligation or mortise and tenon type, adopts the ring point of this connected mode with respect to the node of steel work or concrete structure, and the connection reliability of ring point is low.In construction work application aspect, bamboo wood is only processed to as bamboo floor at present, the decorating and renovating materials such as bamboo craftwork product, and its case for structural wood is very few.Therefore, in low-carbon (LC), environmental protection, green building theory, obtain extensively today of approval, how bamboo wood is applied to building engineering structure as structural wood, be especially applied to latticed shell structure, thereby further widen the application of bamboo wood, it is very great that its meaning just seems.
And how to improve the reliability of bamboo structured connecting joint, and give full play to bamboo wood mechanical property, adopt which kind of rational calculating means to carry out bamboo structure design, become the key issue that restriction bamboo structure application is widened.
Summary of the invention
The utility model proposes a kind of bamboo structure Reticulated Domes, its object is intended to solve the existing the problems referred to above of prior art, has from heavy and light, easy construction, structure stress is reasonable, safe, connected node is simple and reliable, easy-maintaining, the features such as environmental protection.
Technical solution of the present utility model: a kind of bamboo structure Reticulated Domes, a kind of bamboo structure Reticulated Domes, its structure comprises L root bamboo rod member, M bamboo connector, a N fixed-hinged support.
Advantage of the present utility model:
1) from heavy and light: the Recombined bamboo being processed into by former bamboo or laminated timber, density is about 1.2g/cm
3, be about steel 7.9g/cm
31/6 of density, is about aluminium alloys 2.3g/cm
31/2 of density.
2) easy construction: because the density of bamboo wood is little, rod member splicing can be completed by single workman, can reduce workman's labour intensity and ground handling density of personnel, is beneficial to and improves construction quality and speed of application.
3) reasonable stress: bamboo structure Reticulated Domes is under load action, its internal force is mainly born by bamboo rod member, internal force between bamboo rod member is transmitted by node, and the bamboo connector of designing for the connection feature of bamboo structure in the utility model makes the suffered internal force of bamboo rod member pass to steel inserted sheet at Nodes by bolt, steel inserted sheet passes to hollow ball by weld seam by internal force, and Path of Force Transfer is clear and definite, the steel inserted sheet being welded on hollow ball is equivalent to a cantilever construction, for fear of bamboo rod member at Nodes because cross section is excessive and staggered, steel inserted sheet need be given prominence to bamboo rod member one segment distance, make like this cantilever span of single steel inserted sheet increase, the outer bending rigidity of plane diminishes, at the outstanding bamboo rod member of steel inserted sheet, partly weld the steel disc of putting more energy into, the steel inserted sheet of all directions is connected in turn, both reduced the cantilever span of single steel disc, increase the out-of-plane bending rigidity of single steel disc, the steel inserted sheet that makes to be again connected on same hollow ball is jointly stressed, thereby improve the resistance to overturning of node.
4) safe: after finite element software calculates, to find, single bamboo rod member force-bearing situation and the response of overall structure sound all meet design and applicable requirement, and under identical geological process, the internal force of bamboo structure Reticulated Domes is less than the internal force of the steel work Reticulated Domes of same section area; Show the safe of bamboo structure Reticulated Domes.
5) connected node is simple and reliable: bamboo net shell is mainly connected to form net shell main body by bamboo connector by bamboo rod member according to certain rules, and each bamboo connector comprises 1 hollow ball, P steel inserted sheet, Q put more energy into steel disc, several bolts; Wherein reserved circular arc type breach on one end of steel inserted sheet, reserves A bolt hole on the other end of steel inserted sheet; One end and the hollow ball of the reserved circular arc type breach of steel inserted sheet are welded and fixed; Reserved groove and B bolt hole on the end of bamboo rod member, insert in the reserved groove of bamboo rod member one end of the reserved A bolt hole of steel inserted sheet, and the reserved A bolt hole of steel inserted sheet aligns with B bolt hole reserved on bamboo rod member, and A bolt hole, B bolt hole are fixed with bolt; On the steel inserted sheet between bamboo rod member and hollow ball, weld the steel disc of putting more energy into, installation process is simple, and good integrity connects reliable.
6) easy-maintaining: when bamboo net shell is in installation or use procedure, when bamboo rod member is badly in need of changing because there are safety and stablization that the situations such as crack, overbending affect whole latticed shell structure, only need unload bamboo rod member two ends for being connected bolt used with steel inserted sheet, take off the bamboo rod member of damage, change new bamboo rod member, the bolt unloading before tightening again, can complete maintenance work.
7) environmental protection: China's bamboo timber resource is abundant, selection is convenient; Bamboo wood growth cycle is short, and belongs to the renewable resource of environmental protection, therefore outstanding as the environment-friendly advantage of the bamboo structure Reticulated Domes of main structure body material with bamboo wood.
Accompanying drawing explanation
Fig. 1 is bamboo structure Reticulated Domes plan view.
Fig. 2 is bamboo structure Reticulated Domes stereogram.
Fig. 3 is the A-A sectional drawing in Fig. 1.
Fig. 4 is bamboo connector schematic diagram in bamboo structure Reticulated Domes.
Fig. 5 is the schematic diagram of bamboo structure Reticulated Domes bamboo rod member and bamboo connector coupling part.
Fig. 6 is single steel inserted sheet schematic diagram.
Fig. 7 is single bamboo rod schematic representation.
In figure 1 is bamboo bar radially, the 2nd, and broadwise bamboo bar, the 3rd, oblique bamboo bar, the 4th, steel inserted sheet, the 5th, hollow ball, the 6th, fixed-hinged support, the 7th, the steel disc of putting more energy into, the 8th, bolt, the 9th, bottom bracing structure, the 10th, circular arc type breach, the 11st, A bolt hole, the 12nd, B bolt hole, the 13rd, groove, the 14th, pad.
The specific embodiment
A kind of bamboo structure Reticulated Domes the utility model being provided below in conjunction with the drawings and specific embodiments is elaborated.
Contrast accompanying drawing, a kind of bamboo structure Reticulated Domes, its structure comprises L root bamboo rod member, M bamboo connector, a N fixed-hinged support 6.
Described L root bamboo rod member comprises radially bamboo bar 1 or broadwise bamboo bar 2 or oblique bamboo bar 3, described L=is bamboo bar+broadwise bamboo bar+oblique bamboo bar radially, every radially the two ends of bamboo bar or broadwise bamboo bar or oblique bamboo bar be connected on corresponding bamboo connector, thereby form the main part of Reticulated Domes.
Each bamboo connector in described M bamboo connector comprises 1 hollow ball 5, a M steel inserted sheet 4, M or M-1 put more energy into steel disc 7, a 2M bolt 8; Wherein reserved circular arc type breach 10 on one end of steel inserted sheet, reserves A bolt hole 11 on the other end of steel inserted sheet; One end and the hollow ball of the circular arc type breach that steel inserted sheet is reserved are welded and fixed; Reserved groove 13 and B bolt hole 12 on the end of bamboo rod member, insert in the reserved groove of bamboo rod member one end of the reserved A bolt hole of steel inserted sheet, the reserved A bolt hole 11 of steel inserted sheet aligns with B bolt hole 12 reserved on bamboo rod member, and A bolt hole, B bolt hole are fixed with two bolts 8; On the steel inserted sheet between bamboo rod member and hollow ball, weld the steel disc 7 of putting more energy into.
The upper end of each fixed-hinged support 6 in a described N fixed-hinged support is arranged on the hollow ball 5 at bamboo connector center of Reticulated Domes outmost turns, and the lower end of each fixed-hinged support is arranged on the top of bottom bracing structure 9.
Described radially bamboo bar, broadwise bamboo bar and the rectangular body structure of oblique bamboo bar, employing be by former bamboo Recombined bamboo and bamboo material stacked material of making after processing.
The reserved groove in place, axis at the two ends of described radially bamboo bar, broadwise bamboo bar and oblique bamboo bar, reserved B bolt hole in the direction of this groove vertical centering control axis.
One end of the reserved circular arc type breach of steel inserted sheet in described bamboo connector and hollow ball fixedly soldering angle are that the angle that after bamboo net shell grid is divided, bamboo rod member axis forms is less than 90 degree, the steel inserted sheet other end is reserved A bolt hole, for being connected with bamboo rod member, the radius of the described reserved circular arc type breach in steel inserted sheet one end is consistent with the radius of connected hollow ball, thereby do not form space when steel inserted sheet is welded with hollow ball, can closely not be connected.
Between the contact surface of described bolt and bamboo rod member, be provided with pad 14, avoid occurring partial pressing and destroy on the contact surface of bamboo rod member and bolt.
The spacing distance of each fixed-hinged support 6 in a described N fixed-hinged support is adjustable.
When described radially bamboo bar 1, broadwise bamboo bar 2 and oblique bamboo bar 3 damage in installation or use procedure, can change in time.
Embodiment
The method of assembling an individual layer sphere bamboo net shell, comprises the steps:
1) member numbering
Bamboo net shell in this embodiment is K6 type Kai Weite Reticulated Domes, totally 5 encloses from top to bottom, is designated as successively A, B, C, D, E; The 1st circle has 1 bamboo connector, is designated as A1, and the 2nd circle has 6 bamboo connectors, is designated as respectively B1, B2, B3, B4, B5, B6; The like, outmost turns i.e. the 5th circle has 24 bamboo connectors, is designated as respectively E1, E2 ... E24, the numbering of bamboo connector hollow bulbus cordis 5 is with the numbering of bamboo connector, and the numbering of fixed-hinged support is with the numbering of bamboo connector; Steel inserted sheet 4 is numbered according to the following rules, for example be welded on 6 steel inserted sheets 4 on the hollow ball 5 that is numbered A1, its numbering is respectively A1-a, A1-b, A1-c, A1-d, A1-e, A1-f, be welded on 4 steel inserted sheets 4 on the hollow ball 5 that is numbered E3, its numbering is respectively E3-a, E3-b, E3-c, E3-d; Bamboo rod member is numbered according to the following rules, for example bamboo connector A1 and bamboo connector B1 have a radial bars 1, be numbered A1a-B1a, because radial bars 1 one end is connected with the steel inserted sheet 4 that is numbered A1-a, therefore this end is numbered A1a, radial bars 1 other end is connected with the steel inserted sheet 4 that is numbered B1-a, therefore this end is numbered B1a, obtain thus the bamboo rod member numbering of A1a-B1a, according to afore mentioned rules, every bamboo rod member, steel inserted sheet 4 and hollow ball 5 are numbered, and because latticed shell structure member is numerous, member is numbered ensuing net shell assembling and provides a great convenience.
2) form bamboo connector
Take and be numbered the installation process that the bamboo connector of A1 is example explanation bamboo connector: the hollow ball 5 that is numbered A1 is placed on the welding equipment with positioner, to be numbered A1-a successively, A1-b, A1-c, A1-d, A1-e, one end of 6 steel inserted sheets, the 4 reserved circular arc type breach 10 of A1-f is welded on hollow ball 5, the angle that each steel inserted sheet 4 is welded on hollow ball 5 is the angle that after bamboo net shell grid is divided, bamboo rod member axis forms, welding equipment is with positioner, and the radius of the circular arc type breach 10 that steel inserted sheet 4 one end are reserved is consistent with the radius of connected hollow ball 5, thereby these two measures did not form space when not only having guaranteed the accurate location of steel inserted sheet 4 and the soldering angle of hollow ball 5 but also having made steel inserted sheet 4 with hollow ball 5 welding can be closely connected, the last welding steel disc 7 of putting more energy on the steel inserted sheet 4 of 5 of bamboo rod member and hollow balls, the steel disc 7 of putting more energy into connects into an integral body by 6 steel inserted sheets that are numbered A1-a, A1-b, A1-c, A1-d, A1-e, A1-f successively, so both reduced the cantilever span of single steel disc, increase the out-of-plane bending rigidity of single steel disc, 6 steel inserted sheets that make to be again connected on same hollow ball 5 are jointly stressed, thereby the resistance to overturning that improves node, assembles 61 bamboo connectors according to the method described above.
3) be linked to be single-layer lattice shell main body
First the 5th circle (being outmost turns) of assembling bamboo structure Reticulated Domes, is respectively E1, E2 by outmost turns numbering ... the hollow ball 5 at 24 bamboo connector centers of E24 carries out location, scene according to the position of design drawing regulation; Then utilize bamboo rod member that bamboo connector is connected in turn, as the radial bars 1 that is numbered D1a-E1a couples together bamboo connector D1 and bamboo connector E1, reserved groove 13 and B bolt hole 12 on the end of bamboo rod member, bamboo rod member is inserted in the one end that is numbered the steel inserted sheet 4 reserved A bolts hole 11 of D1-a and be numbered in the reserved groove 13 of that end of D1a, bamboo rod member is inserted in the one end that is numbered the steel inserted sheet 4 reserved A bolts hole 11 of E1-a and be numbered in the reserved groove 13 of that end of E1a; The reserved A bolt hole 11 of steel inserted sheet 4 aligns with B bolt hole 12 reserved on bamboo rod member, A bolt hole 11, two bolts of B bolt hole 12 use 8 are fixed, so just by bamboo rod member, realize bamboo and connected being connected of D1 and bamboo connector E1, order by the 5th circle (being outmost turns) to first lap, according to said method, with bamboo rod member, successively 61 bamboo connectors are coupled together, form the main part of single-layer lattice shell.
4) net shell bearing is installed
To be numbered E1, E3, E5 ... the upper end of the fixed-hinged support 6 of E23 is arranged on the hollow ball 5 at bamboo connector center of the identical numbering of Reticulated Domes outmost turns, the lower end of fixed-hinged support 6 is arranged on the top of bottom bracing structure 9, adjacent bamboo connector in two fixing hinged 6 intervals, totally 12 fixed-hinged supports 6, have formed a bamboo structure Reticulated Domes thus.
In order to check the supporting capacity of bamboo structure Reticulated Domes, the steel work Reticulated Domes that the applicant has compared bamboo structure that the utility model of same apparent size and bar cross section area provides and prior art with finite element software SAP2000 is at horizontal earthquake EL-Centro(1940) rod member internal force maximum value under ripple effect in 8s, the results are shown in Table 1.
From table 1, the maximum internal force of the rod member of bamboo structure Reticulated Domes is all less than the maximum internal force of the rod member of steel work Reticulated Domes, and large 5.5 times than the former of the latter, show that bamboo structure Reticulated Domes is affected by earthquake relatively little, structure stress is reasonable, and degree of safety is high.
Claims (8)
1. a bamboo structure Reticulated Domes, is characterized in that: comprise L root bamboo rod member, M bamboo connector, a N fixed-hinged support; Described L root bamboo rod member comprises radially bamboo bar or broadwise bamboo bar or oblique bamboo bar, and described L=is bamboo bar+broadwise bamboo bar+oblique bamboo bar radially, every radially the two ends of bamboo bar or broadwise bamboo bar or oblique bamboo bar be connected on corresponding bamboo connector.
2. a kind of bamboo structure Reticulated Domes according to claim 1, is characterized in that: each the bamboo connector in described M bamboo connector comprises 1 hollow ball, a M steel inserted sheet, M or M-1 put more energy into steel disc, a 2M bolt; Wherein reserved circular arc type breach on one end of steel inserted sheet, reserves A bolt hole on the other end of steel inserted sheet; One end and the hollow ball of the circular arc type breach that steel inserted sheet is reserved are welded and fixed; Reserved groove and B bolt hole on the end of bamboo rod member, insert in the reserved groove of bamboo rod member one end of the reserved A bolt hole of steel inserted sheet, and the reserved A bolt hole of steel inserted sheet aligns with B bolt hole reserved on bamboo rod member, and A bolt hole, B bolt hole are fixed with bolt; On the steel inserted sheet between bamboo rod member and hollow ball, weld the steel disc of putting more energy into.
3. a kind of bamboo structure Reticulated Domes according to claim 1, it is characterized in that: the upper end of each fixed-hinged support in a described N fixed-hinged support is arranged on the hollow ball at bamboo connector center of Reticulated Domes outmost turns, and the lower end of each fixed-hinged support is arranged on the top of bottom bracing structure.
4. a kind of bamboo structure Reticulated Domes according to claim 1, is characterized in that: described radially bamboo bar, broadwise bamboo bar and the rectangular body structure of oblique bamboo bar.
5. a kind of bamboo structure Reticulated Domes according to claim 1, is characterized in that: the reserved groove in place, axis at the two ends of described radially bamboo bar, broadwise bamboo bar and oblique bamboo bar, reserved B bolt hole in the direction of this groove vertical centering control axis.
6. a kind of bamboo structure Reticulated Domes according to claim 2, it is characterized in that: one end of the reserved circular arc type breach of steel inserted sheet in described bamboo connector and hollow ball fixedly soldering angle are that the angle that after bamboo net shell grid is divided, bamboo rod member axis forms is less than 90 degree, the steel inserted sheet other end is reserved A bolt hole, for being connected with bamboo rod member, the radius of the described reserved circular arc type breach in steel inserted sheet one end is consistent with the radius of connected hollow ball.
7. a kind of bamboo structure Reticulated Domes according to claim 2, is characterized in that: between described bolt and the contact surface of bamboo rod member, be provided with pad.
8. a kind of bamboo structure Reticulated Domes according to claim 3, is characterized in that: the spacing distance of each fixed-hinged support in a described N fixed-hinged support is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594026.4U CN203546901U (en) | 2013-09-26 | 2013-09-26 | Bamboo-structure single-layer spherical reticulated shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594026.4U CN203546901U (en) | 2013-09-26 | 2013-09-26 | Bamboo-structure single-layer spherical reticulated shell |
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| CN203546901U true CN203546901U (en) | 2014-04-16 |
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| CN201320594026.4U Expired - Fee Related CN203546901U (en) | 2013-09-26 | 2013-09-26 | Bamboo-structure single-layer spherical reticulated shell |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469890A (en) * | 2013-09-26 | 2013-12-25 | 南京林业大学 | Bamboo-structure single-layer spherical latticed shell and assembling method |
| CN104847015A (en) * | 2015-05-29 | 2015-08-19 | 东南大学 | Assembled joint applicable to monolayer triangular space grid structure |
| CN108222555A (en) * | 2018-01-04 | 2018-06-29 | 北京龙建集团有限公司 | Protect ceiling |
| CN111894133A (en) * | 2020-07-13 | 2020-11-06 | 华南农业大学 | Assembled steel bamboo wood individual layer spherical shell structure system |
| CN115613700A (en) * | 2022-12-16 | 2023-01-17 | 中交第四航务工程勘察设计院有限公司 | Full-hinged single-layer wood latticed shell structure |
-
2013
- 2013-09-26 CN CN201320594026.4U patent/CN203546901U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469890A (en) * | 2013-09-26 | 2013-12-25 | 南京林业大学 | Bamboo-structure single-layer spherical latticed shell and assembling method |
| CN103469890B (en) * | 2013-09-26 | 2016-03-30 | 南京林业大学 | A kind of bamboo structure Reticulated Domes and assemble method |
| CN104847015A (en) * | 2015-05-29 | 2015-08-19 | 东南大学 | Assembled joint applicable to monolayer triangular space grid structure |
| CN108222555A (en) * | 2018-01-04 | 2018-06-29 | 北京龙建集团有限公司 | Protect ceiling |
| CN108222555B (en) * | 2018-01-04 | 2021-03-16 | 北京龙建集团有限公司 | Protective ceiling |
| CN111894133A (en) * | 2020-07-13 | 2020-11-06 | 华南农业大学 | Assembled steel bamboo wood individual layer spherical shell structure system |
| CN111894133B (en) * | 2020-07-13 | 2024-05-31 | 华南农业大学 | Assembled steel bamboo wood individual layer spherical shell structure system |
| CN115613700A (en) * | 2022-12-16 | 2023-01-17 | 中交第四航务工程勘察设计院有限公司 | Full-hinged single-layer wood latticed shell structure |
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Granted publication date: 20140416 Termination date: 20150926 |
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