CN105019557B - Construction method for flying-wing-type formwork space truss structure - Google Patents
Construction method for flying-wing-type formwork space truss structure Download PDFInfo
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Abstract
The invention belongs to the field of steel structure construction, and particularly discloses a construction method for a flying-wing-type formwork space truss structure. The flying-wing-type formwork space truss structure comprises main trusses, auxiliary trusses and parallel chord member trusses. The main trusses, the auxiliary trusses and the parallel chord member trusses are welded and fixedly connected to form a formwork space truss structure body. The flying-wing-type formwork space truss structure further comprises flying-wing-type trusses located above the formwork space truss structure body. The flying-wing-type trusses are connected with the auxiliary trusses of the formwork space truss structure body through draglines. The invention further discloses the construction method of the flying-wing-type formwork space truss structure. The construction method includes the construction steps of support installing, main truss installing, hemisphere auxiliary truss installing, steel dragline constructing and the like. By means of the flying-wing-type formwork space truss structure, a whole structure is more stable, a chain block and a wall pulley are matched to carry out steel structure installing and steel dragline tensioning, the construction method is simple, the number of adopted machines is small, the site safety is guaranteed, the construction quality is also guaranteed, and the construction cost is greatly reduced.
Description
Technical field
The invention belongs to field of steel structure construction, specially flying wing type formwork space truss structure construction method.
Background technology
Steel construction has intensity high, and from heavy and light, speed of application is fast, anti-seismic performance is good, energy-conserving and environment-protective and industrialization degree are high
The advantages of, therefore it becomes one of China's key popularized project, corresponding steel cable is also obtained in Large Span Spatial Truss
To being widely applied.
As the continuous progressive and people of society also require that more and more higher to feature building, not requiring nothing more than public building has
Beautiful outward appearance, meets again using function and safety and stability, and common firm version and construction method can not
Meet the needs of engineering construction.
The content of the invention
For being actually needed for steel construction construction, the invention provides a kind of new steel structure form, meets people couple
The requirement of practicality and perfect tube exterior and security.
Concrete scheme is：Flying wing type formwork space truss structure includes main couple, jack truss and parallel-chord truss, main truss
Frame, jack truss are welded to each other with parallel-chord truss and are fixedly connected, and form " hemispherical " formwork space truss structure, the truss
Structure also includes being located at " arc-shaped " the flying wing type truss on formwork space truss structure, and flying wing type truss is by drag-line and mould
The jack truss of shell-space truss structure is connected, and two arc ends of flying wing type truss are fixed on bearing.
Further, the jack truss that many Pin are parallel to each other is provided between main couple and parallel-chord truss, is connected between jack truss
It is connected to and links bar, link top boom of the bar perpendicular to jack truss, and is welded to connect with jack truss top boom.
Further, the main couple and parallel-chord truss are provided with parallel with the top boom of jack truss, vertical with bar is linked
Support bar；Support bar is welded to connect with the top boom of main couple and parallel-chord truss, is welded to connect with bar is linked.
Further, the jack truss includes jack truss top boom, jack truss lower boom, on jack truss top boom and main couple
Chord member and parallel-chord truss top boom are welded to connect, jack truss lower boom and main couple lower boom and parallel-chord truss lower edge
Bar is welded to connect.
Further, the drag-line upper end is connected on flying wing type truss lower boom, and drag-line lower end is connected to jack truss and winds up
On bar and the crosspoint for linking bar.
Further, the two ends of the main couple and flying wing type truss are respectively by spherical bearing and main couple base and all-wing aircraft
Type truss base is fixedly connected；The parallel-chord truss lower boom of parallel-chord truss is welded with spherical bearing, spherical bearing with
Parallel-chord truss base is fixedly connected.
Further, drag-line is steel tendon drag-line made by 1670 grades of high tensile steel wires, a diameter of22mm。
The invention also discloses flying wing type formwork space truss structure construction method, including following construction procedure：
The first step, bearing is installed：Node is intuitively three-dimensional model diagram by the method modeled using Digital Three-Dimensional,
Can be then converted to be positioned bearing in live practice of construction according to axis, absolute altitude is put on embedded part from model；
Second step, main couple is installed：Set up scaffold and be supported main couple, it is ensured that the globality of scaffold with it is stable
Property, scaffold sets up the road of horizontal cross brace 3, and scissors is fully supported and set on the outside of support body；4 points of the main couple truck crane for having spliced is entered
Row is installed, and middle part is supported using scaffold, and two ends are attached with bearing, and using ground collimation method control main couple is thrown
Axis, side oblique pull positioning is carried out to main couple at 3 points after in place with steel wire rope and chain block；
3rd step, hemisphere jack truss is installed：Jack truss is formed using steel-pipe welding, adopts in jack truss installation process at 2 points
Lifting, with chain block setting angle is adjusted, and top is docked with main couple node, and bottom steelframe ball is connected with bearing
Connect, main couple adopts scaffold building operating platform with jack truss connecting portion, it is ensured that the safety of workmen；
4th step, steel cable construction：
1）Early-stage preparations
Scene preparation before drag-line construction：Part stacks neat after job site is transported to, by number, lower chock a tree, used in making timber for boats, field
Require smooth clean and tidy, and to take whether fire prevention, rain-proof, damp proof safeguard measure inspection dragline anchorage, PE sheaths have damage,
Drag-line burr nearby is eliminated if any should immediately correcting or repairing, it is to avoid injury protection set；
2）Hanging cable
Upper end drag-line is fixed, and by the use of the scaffold of main couple is installed as operating platform, will be drawn using truck crane coordinating
Rope fixing end is sling, and hoisting point position should meet the slightly sagging required length in anchorage upper end, and node installation personnel exist on truss
Scaffold operating platform is manually worn axle connection, the upper node peace of drag-line using the instrument such as chain block and fiber hanging belt
Install；
Lower node drag-line install, lower node distal end arrange pulley, using manually by drag-line lower end cooperation jack be drawn to
Installation site, colligation point should ensure that there is certain oscillating quantity anchorage end during traction, drag-line is tackled in distraction procedure and is strictly protected,
Avoid cable body and anchorage screw thread impaired, and every drag-line of close inspection in position installation process when in time adjustment drag-line is hanging
Torsion situation, prevents drag-line from reversing with node and is connected；
3）Tensioning：The determination of stretching plan, selected, the concrete stretching plan of tensioning equipment；
4）Cable wire is adjusted：Suo Caiyong torque spanneres are adjusted to be controlled, by setting wrenching torque, to sleeve after locking Suo Li
Tightened；Successively Suo Li loadings are carried out to every cable wire using torque spanner.
Beneficial effect：Truss each section is coupled together by solder sphere, two hemisphere is formed, in order to ensure two hemisphere
Stability and steadiness, each hemisphere increased a flying wing type truss and coupled together with the truss of hemisphere by drag-line.So that
Total is more stable.Being coordinated using chain block and chest expander carries out Steel Structure Installation and steel zip tensioning, construction method
Simply, what is adopted in constructing is mechanical less, it is ensured that site safety, while also ensure that construction quality, considerably reduces and applies
Work cost.
Description of the drawings
Fig. 1 is the overall perspective view being made up of two flying wing type formwork space truss structures；
Fig. 2 is flying wing type formwork space truss structure side view；
Fig. 3 is single flying wing type formwork space truss structure front elevation；
Fig. 4 is single flying wing type formwork space truss structure side partial enlarged drawing；
In figure, 1- main couples；11- main couple top booms；12- main couple lower booms；2- jack truss；21- jack truss winds up
Bar；22- jack truss lower booms；3- parallel-chord trusses；31- parallel-chord truss top booms；32- parallel-chord truss lower edges
Bar；4- flying wing type truss；42- flying wing type truss lower booms；5- drag-lines；6- links bar；7- support bars；81- main couple bases；
82- flying wing type truss bases；83- parallel-chord truss bases.
Specific embodiment
This engineering ground floor B1, underground is exhibition room, is on the ground business steel truss structure, predominantly space triangular
Shape tube truss structure engineering；Including solder sphere, space drag-line.Truss each section is coupled together by solder sphere, is formed
Two hemisphere, in order to ensure the stability and steadiness of two hemisphere, each hemisphere increases a flying wing type truss and passes through drag-line
Couple together with the truss of hemisphere.So that total is more stable.Global shape is to grow the two symmetrical lobes for having all-wing aircraft respectively
Formwork shape, novel in design, moulding is unique, uniform force.Roof system floor projection size is about 38.2m × 38.8m, its coverage rate
General 750 square meter of product, the high 9.746m of steel truss top mark, primary and secondary truss is mainly spatial triangle truss, and truss span is
38.8m.It is P114x4.5 that chord member of truss section is P180x8, web member, and material is Q235B.Adopt high with 1670 grades simultaneously
Steel tendon drag-line made by strong steel wire, a diameter of 22mm.
Flying wing type formwork space truss structure includes main couple 1, jack truss 2 and parallel-chord truss 3, main couple 1, secondary purlin
Frame 2 is welded to each other with parallel-chord truss 3 and is fixedly connected, and forms " hemispherical " formwork space truss structure, the truss structure
Also include being located at " arc-shaped " the flying wing type truss 4 on formwork space truss structure, flying wing type truss is by drag-line 5 and formwork
The jack truss of space truss structure is connected, and two arc ends of flying wing type truss are fixed on bearing.
The jack truss 2 that many Pin are parallel to each other is provided between main couple 1 and parallel-chord truss 3, is connected between jack truss 2
Bar 6 is linked, top boom 21 of the bar 6 perpendicular to jack truss 2 is linked, and is welded to connect with jack truss top boom 21.
Main couple 1 and parallel-chord truss 3 are provided with parallel with the top boom 21 of jack truss 2, vertical with bar 6 is linked support
Bar 7；Support bar 7 is welded to connect with the top boom of main couple 1 and parallel-chord truss 3, is welded to connect with bar 6 is linked.
Jack truss 2 includes jack truss top boom 21, jack truss lower boom 22, jack truss top boom 21 and main couple top boom
11 and parallel-chord truss top boom 31 be welded to connect, jack truss lower boom 22 and main couple lower boom 12 and parallel-chord truss
Lower boom 32 is welded to connect.
The upper end of drag-line 5 is connected on flying wing type truss lower boom 42, and the lower end of drag-line 5 is connected to jack truss top boom 21 and connects
On the crosspoint of tie-rod 6, the design of the concrete drawknot structure of drag-line will be through specific Mechanics Calculation, shown in Figure 1, drag-line
V-shaped alternating is connected between flying wing type truss and jack truss, shown in Figure 3, and flying wing type truss is with flying wing type truss secondary
Drawknot has drag-line between the jack truss component of the both sides projected on truss.
The two ends of main couple 1 and flying wing type truss 4 are respectively by spherical bearing and main couple base 81 and flying wing type truss
Base 82 is fixedly connected；The parallel-chord truss lower boom 32 of parallel-chord truss 3 is welded with spherical bearing, spherical bearing with it is flat
Row chord truss base 83 is fixedly connected.
Preparative work before construction：For the technology priority and difficulty of this engineering construction, the scientific and rational construction of establishment before construction
Scheme and safety prevention measure, and can construct Jing after the examination ＆ approval of management construction unit, the personnel to participating in construction are had in advance
Targetedly technical training and safety training, make all workmens to be familiar with the related request in arrangement and method for construction, it is ensured that to apply
Work scheme is implemented execution in work progress.
Construction of Steel Structure order：Surveying setting-out → built-in fitting process → bearing installation → component transhipment → main couple splicing →
Support scaffolding sets up → and main couple installation → jack truss installs → links bar installation → support bar installation → welding → fringe truss
Splicing → fringe truss installation → drag-line installation → welding → polishing → repairing paint → fireproof coating.
Node is three-dimensional model diagram by the method modeled using Digital Three-Dimensional, can intuitively be reacted from model
Go out the connected mode at each position, positioned bearing according to axis, absolute altitude is put on embedded part, control errors minimum zone with
It is interior.
Specific construction step is：
The first step, bearing is installed：Node is intuitively three-dimensional model diagram by the method modeled using Digital Three-Dimensional,
Can be then converted to be positioned bearing in live practice of construction, error according to axis, absolute altitude is put on embedded part from model
Within control minimum zone, recycling is manually adjusted, and accomplishes that bearing is installed accurate；
Second step, hemisphere main couple is installed：Because main couple hoisting height reaches 10m, in order to avoid the truss in hoisting process
Swing and facilitate personnel to adjust the angle of truss, therefore need to carry out setting up scaffold and be supported main couple, scaffold is set up
Highly it is 9m, adopts48 × 3.0mm steel pipes, vertical pole's span 1m, step pitch spacing 1.2m, it is ensured that the globality of scaffold with it is stable
Property, scaffold sets up the road of horizontal cross brace 3, and scissors is fully supported and set on the outside of support body.So both ensure that truss there are enough strong points
Also bring operating space to workmen simultaneously.The main couple for having spliced is installed for 4 points with 100T truck cranes, it is middle
Position is supported using scaffold, and two ends are attached with bearing, and using ground collimation method control main couple axis is thrown, and treats at 3 points
Side oblique pull positioning is carried out to main couple with steel wire rope and chain block after in place.
3rd step, hemisphere jack truss is installed：Jack truss is formed using A114 × 4.5mm steel-pipe weldings, and jack truss was installed
Using 2 points of liftings in journey, setting angle is adjusted with chain block, top is docked with main couple node, bottom steelframe ball
It is attached with bearing, main couple adopts scaffold building operating platform with jack truss connecting portion, it is ensured that the peace of workmen
Entirely.
4th step, steel cable construction：
1. early-stage preparations
Scene preparation before drag-line construction：1）Part stacks neat after job site is transported to, by number, lower chock a tree, used in making timber for boats,
Site requirements is smooth clean and tidy, and to take fire prevention, rain-proof, damp proof safeguard measure.2）Check whether dragline anchorage, PE sheaths have
Damage, if any should immediately correct or repair.3）Eliminate drag-line burr nearby, it is to avoid injury protection set.
2. hanging cable
Upper end drag-line is fixed, and by the use of the scaffold of main couple is installed as operating platform, will be drawn using truck crane coordinating
Rope fixing end is sling, and hoisting point position should meet the slightly sagging required length in anchorage upper end, and node installation personnel exist on truss
Scaffold operating platform is manually worn axle connection, the upper node peace of drag-line using the instrument such as chain block and fiber hanging belt
Install complete.
Lower node drag-line install, lower node distal end arrange pulley, using manually by drag-line lower end cooperation jack be drawn to
Installation site, colligation point should ensure that there is certain oscillating quantity anchorage end during traction, drag-line is tackled in distraction procedure and is strictly protected,
Avoid cable body and anchorage screw thread impaired, and position when in time adjustment drag-line is hanging.Every drag-line of close inspection in installation process
Torsion situation, prevent drag-line and node from reversing and be connected.
3. tensioning
The determination of 3.1 stretching plans
Before tensioning, calculated according to designing unit and analyzed, combination defined by designing unit, supervisor, unit in charge of construction and adopted
With the tension construction technology of grading tension, drag-line stretch value and chest expander dual control.
3.2 tensioning equipments select
Because this project stretching force is that 15KN and LS2 is 30KN for LS1, cable tension value is not very big, while considering
The limitation of this project construction frock input, tensioning adopts chain block（Jack）+ chest expander is constituted.
3.3 concrete stretching plans
According to stretching force size, workmen carries out Suo Li loadings using chain block, and the stretching force of cucurbit passes through pulling force
The reading of device is controlled, and just cold tensioning is no less than 2 times, and each tensioning time is no less than 50min.
Successively Suo Li loadings are carried out to every cable wire using cucurbit, cable wire is stretched and tentatively control is to design Suo Li,
During drawing, necessary monitoring should be carried out, it is to avoid structure itself occurs larger STRESS VARIATION.
LS1a cable wires to be first installed and is tensioned, then LS2 cable wires are installed, LS1 Suo Li are 15KN, LS2 after the completion of tensioning
Suo Li is 30KN.
4. cable wire is adjusted：
4.1 are being carried out in stretching process to cable wire, tensioning can be caused to complete steel cable force and changed, it is therefore necessary to
Cable wire to completing tensioning is adjusted, to guarantee that steel cable force reaches design requirement.
4.2 tune Suo Caiyong torque spanneres are controlled, and by setting wrenching torque, sleeve are twisted after locking Suo Li
Tightly, due to torque spanner particularity, if steel cable force is reduced, load after being tightened by spanner, after reaching pre- standing wire power
Automatically locking, it is impossible to continue to load, if Suo Li does not change, due to the construction of torque spanner, cannot load.
4.3 carry out Suo Li loadings using torque spanner to every cable wire successively.
4.4 adjust during rope, should carry out necessary monitoring, it is to avoid structure occurs larger STRESS VARIATION.
Steel truss tension deformation is monitored：Before tensioning, absolute altitude monitoring, record data, to purlin are carried out to main couple and jack truss
The bolt of frame and agent structure connecting portion carries out inspection record, again to main couple and jack truss absolute altitude after the completion of tensioning
Monitoring, record data checks whether there is loosening and de- head to the bolt of truss and agent structure junction.Premenstrual rear data pair
Than deforming and absolute altitude error being in allowed band.
It was verified that coordinate carrying out Steel Structure Installation and steel zip tensioning, construction method using chain block and chest expander
Simply, what is adopted in constructing is mechanical less, it is ensured that site safety, while also ensure that construction quality, considerably reduces and applies
Work cost.
Claims (9)
1. flying wing type formwork space truss structure construction method, its spy is that the truss structure includes main couple（1）, secondary purlin
Frame（2）And parallel-chord truss（3）, main couple（1）, jack truss（2）And parallel-chord truss（3）It is welded to each other and is fixedly connected,
" hemispherical " formwork space truss structure is formed, the truss structure also includes being located at " the circle on formwork space truss structure
Arcuation " flying wing type truss（4）, flying wing type truss is by drag-line（5）It is connected with the jack truss of formwork space truss structure, all-wing aircraft
Two arc ends of type truss are fixed on bearing；
Its construction method includes following construction procedure：
The first step, bearing is installed：Node is intuitively three-dimensional model diagram by the method modeled using Digital Three-Dimensional, from mould
According to axis, absolute altitude is put on embedded part in type, it is then converted to be positioned bearing in live practice of construction；
Second step, main couple is installed：Set up scaffold support main couple, it is ensured that the globality and stability of scaffold, scaffold
The road of horizontal cross brace 3 is set up, scissors is fully supported and set on the outside of support body；The main couple for having spliced is installed for 4 points with truck crane, in
Between position be supported using scaffold, two ends are attached with bearing, using ground throw collimation method control main couple axis, treat three
Side oblique pull positioning is carried out to main couple with steel wire rope and chain block after point is in place；
3rd step, jack truss is installed：Jack truss is formed using steel-pipe welding, using 2 points of liftings in jack truss installation process, is used
Chain block adjusts setting angle, and top is docked with main couple node, and bottom steelframe ball is attached with bearing, main truss
Frame adopts scaffold building operating platform with jack truss connecting portion, it is ensured that the safety of workmen；
4th step, steel cable construction：
1）Early-stage preparations
Scene preparation before drag-line construction：Part stacks neat after job site is transported to, by number, and lower chock a tree, used in making timber for boats, place will
Ask smooth clean and tidy, and to take fire prevention, rain-proof, damp proof safeguard measure, check whether dragline anchorage, PE sheaths have damage, such as
Having should immediately correct or repair elimination drag-line burr nearby, it is to avoid injury protection set；
2）Hanging cable
Upper end drag-line is fixed：By the use of installing the scaffold of main couple as operating platform, then coordinate and consolidated drag-line using truck crane
Fixed end is sling, and hoisting point position should meet the slightly sagging required length in anchorage upper end, and node installation personnel are in pin hand on truss
Frame operating platform is manually worn axle connection using chain block and fiber hanging belt, and the upper node of drag-line is installed；
Lower node drag-line is installed：Lower node distal end arrange pulley, using manually by drag-line lower end cooperation jack be drawn to installation
Position, colligation point should ensure that there is certain oscillating quantity anchorage end during traction, drag-line is tackled in distraction procedure and is strictly protected, it is to avoid
Cable body and anchorage screw thread are impaired, and adjust in time drag-line it is hanging when position installation process in every drag-line of close inspection torsion
Situation, prevents drag-line from reversing with node and is connected；
3）Tensioning：The selected and concrete stretching plan of the determination, tensioning equipment including stretching plan；
4）Cable wire is adjusted：Adjust Suo Caiyong torque spanneres to be controlled, by setting wrenching torque, sleeve is carried out after locking Suo Li
Tighten；Successively Suo Li loadings are carried out to every cable wire using torque spanner.
2. flying wing type formwork space truss structure construction method according to claim 1, it is characterised in that the main couple
（1）And parallel-chord truss（3）Between be provided with the jack truss that many Pin are parallel to each other（2）, jack truss（2）Between be connected with and link bar
（6）, link bar（6）Perpendicular to jack truss（2）Top boom（21）, and with jack truss top boom（21）It is welded to connect.
3. flying wing type formwork space truss structure construction method according to claim 2, it is characterised in that the main couple
（1）And parallel-chord truss（3）It is provided with and jack truss（2）Top boom（21）It is parallel, and link bar（6）Vertical support bar
（7）；Support bar（7）With main couple（1）And parallel-chord truss（3）Top boom be welded to connect, and link bar（6）Welding connects
Connect.
4. flying wing type formwork space truss structure construction method according to claim 1, it is characterised in that the jack truss
（2）Including jack truss top boom（21）, jack truss lower boom（22）, jack truss top boom（21）With main couple top boom（11）With
Parallel-chord truss top boom（31）It is welded to connect, jack truss lower boom（22）With main couple lower boom（12）With parallel chord member purlin
Frame lower boom（32）It is welded to connect.
5. flying wing type formwork space truss structure construction method according to claim 1, it is characterised in that the drag-line
（5）Upper end is connected to flying wing type truss lower boom（42）On, drag-line（5）Lower end is connected to jack truss top boom（21）With link bar
（6）Crosspoint on.
6. flying wing type formwork space truss structure construction method according to claim 1, it is characterised in that the main couple
（1）With flying wing type truss（4）Two ends respectively by spherical bearing and main couple base（81）With flying wing type truss base（82）
It is fixedly connected；Parallel-chord truss（3）Parallel-chord truss lower boom（32）Be welded with spherical bearing, spherical bearing with it is parallel
Chord truss base（83）It is fixedly connected.
7. flying wing type formwork space truss structure construction method according to claim 1, it is characterised in that the drag-line
（5）The steel tendon drag-line made by 1670 grades of high tensile steel wires, it is a diameter of22mm。
8. construction method according to claim 1, it is characterised in that in the steel cable construction of the 4th step, according to tensioning
Power size, workmen carries out Suo Li loadings using chain block, and the stretching force of cucurbit is controlled by the reading of chest expander,
Just cold tensioning is no less than 2 times, and each tensioning time is no less than 50min；Successively Suo Li loadings are carried out to every cable wire using cucurbit,
Cable wire is stretched and tentatively design Suo Li is arrived in control.
9. construction method according to claim 1, it is characterised in that before tensioning, absolute altitude is carried out to main couple and jack truss
Monitoring, record data carries out inspection record, again to master after the completion of tensioning to the bolt of truss and agent structure connecting portion
The monitoring of truss and jack truss absolute altitude, record data, loosening is checked whether there is to the bolt of truss and agent structure junction with
And de- head.
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| CN109235770B (en) * | 2018-11-16 | 2023-08-11 | 中建二局安装工程有限公司 | Large-span special-shaped cross truss structure and mounting method thereof |
| CN113700311B (en) * | 2021-09-28 | 2022-10-11 | 中能建西北城市建设有限公司 | Construction method for high-altitude positioning of steel casting of steel structure building |
| CN114635566B (en) * | 2022-04-07 | 2023-07-07 | 中电建路桥集团有限公司 | French style dome structure construction method |
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| JP2597910B2 (en) * | 1989-05-16 | 1997-04-09 | 清水建設株式会社 | Top structure of dome frame |
| JP2903945B2 (en) * | 1993-06-10 | 1999-06-14 | 株式会社大林組 | Large span structure and construction method thereof |
| CN101660326A (en) * | 2009-09-07 | 2010-03-03 | 张金贵 | Demountable flowing building framework |
| CN201746935U (en) * | 2010-05-24 | 2011-02-16 | 贺拥军 | Super-span spherical reticulated mega-structure |
| CN102296883B (en) * | 2011-07-04 | 2012-12-19 | 南京际华三五二一特种装备有限公司 | Large-span tent frame device |
| CN103790388B (en) * | 2014-03-05 | 2015-08-05 | 江苏南通六建建设集团有限公司 | Greatly install improve one's methods across the waft high-altitude of eaves of cantilever roofing steel |
| CN204418372U (en) * | 2014-11-12 | 2015-06-24 | 江苏南通六建建设集团有限公司 | The steel beam column venue be made up of arch component space tubular truss |
| CN204876064U (en) * | 2015-08-11 | 2015-12-16 | 中建二局第三建筑工程有限公司 | All -wing aircraft section mould shell space truss structure |
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