CN110274744A - A kind of demoulding method for wind-tunnel diffuser internal model support system - Google Patents
A kind of demoulding method for wind-tunnel diffuser internal model support system Download PDFInfo
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- CN110274744A CN110274744A CN201910598521.4A CN201910598521A CN110274744A CN 110274744 A CN110274744 A CN 110274744A CN 201910598521 A CN201910598521 A CN 201910598521A CN 110274744 A CN110274744 A CN 110274744A
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
Abstract
The invention belongs to wind-tunnel construction method technical fields, more particularly, to a kind of demoulding method for wind-tunnel diffuser internal model support system；Include the following steps: step A, demoulding sequence of construction of making rational planning for, internal model support system is divided into several segments, first segment, second segment, third section by length；Step B, it according to the dismounting direction by Duan Zhifang sections of circle, successively carries out removing interior steel cylinder template and formed steel construction support frame paragraph by paragraph；Successively remove first segment, second segment, third section.Step C, the unit template removed is transported；The present invention efficiently solves the demoulding construction difficult problem of ultra-large type wind-tunnel circle change side's diffuser internal model support system, using this method, the Demolition Construction that internal model support system can safely and reliably be completed prevents damage spreading section concrete inner wall final product quality, guarantees smoothly completing for construction.
Description
Technical field
The invention belongs to wind-tunnel construction method technical fields, are directed to wind-tunnel diffuser internal model supporter more particularly, to one kind
The demoulding method of system.
Background technique
With the continuous development of China's economy, the continuous improvement of scientific and technological level, automobile industry obtains the hair of high speed
Exhibition.Especially in recent years, both the central and local governments all increase the investment of automobile industry, more and more testing agencies and automobile
Producer also all starts to build automobile wind tunnel test room, the runner diffuser wherein docked with fan house in wind-tunnel for horizontal direction by
Circle fades to rectangular tubular structure, and circle section diameter 9.49m, square section side length 11m are diffused using sizing internal model support system
The construction of section main structure, but due to diffuser free height, steel form quality is big, and is profiled template, owner is to diffuser
The final product quality of concrete requires high (being not allow for repairing), therefore causes concrete demoulding difficulty big.
Summary of the invention
In view of this, the present invention is directed to propose a kind of demoulding method for wind-tunnel diffuser internal model support system, effectively
The demoulding construction difficult problem for solving ultra-large type wind-tunnel circle change side's diffuser internal model support system can safely may be used using this method
The Demolition Construction that internal model support system is completed by ground, prevents damage spreading section concrete inner wall final product quality, guarantees the suitable of construction
Benefit is completed.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of demoulding method for wind-tunnel diffuser internal model support system, includes the following steps:
Step A, it makes rational planning for demoulding sequence of construction, internal model support system is divided into several segments, first segment, by length
Two sections, third section ...；
Step B, it according to the dismounting direction by Duan Zhifang sections of circle, successively carries out removing interior steel cylinder template and formed steel construction paragraph by paragraph
Support frame；Successively remove first segment, second segment, third section ...
The unit template for first removing the top of interior steel cylinder template when removing each section and the formed steel construction branch at respective heights
Support；Then the unit template and the formed steel construction support frame at respective heights of two sides of steel cylinder template in removing；It tears open later
Except one of formed steel construction support frame bottom；
The unit mould at all tops to formed steel construction support frame and interior steel cylinder template all in internal model support system
After the completion of plate and the unit template of side are removed, the unit template of the bottom of interior steel cylinder template is eventually removed；
Step C, the unit template removed is transported.
Further, in the step B, when removing to each section of internal model support system, the fashioned iron knot in construction layer is needed
Completely spread scaffold board in the work surface of structure support frame, formation operation platform completely hangs safety net under scaffold board, and in next stratotype steel
Safety net is completely hung under structural supporter.
Further, in the step B, the method for removing every module unit template are as follows: pre- in advance when utilizing concrete construction
The connection reinforcing bar in top concrete is embedded in as hard point, in connection reinforcing bar lower end welded suspending hook, every module unit die plate corners
If four suspension centres, and unit template is hung on the operating platform of scaffold board formation using jack, further according to the ruler of unit template
It is very little that operating platform is dismantled into an interim hole, unit template is hoisted on interior wind-tunnel runner bottom plate, finally by interim hole
Scaffold board and safety net restore.
Further, in the step B, when removing every module unit template, to prevent template from falling suddenly, every module unit mould
Four suspension centres in plate angle portion must be connected firmly with suspension hook or the unit template closed on, when loosening unit template screw, first pine one
Half screw is gradually reinforced the unit template for pulling Unscrewed screw position using jack, disengages it from concrete surface, then
The other half screw for loosening unit template again makes unit template be detached from wind-tunnel runner concrete surface, constructed using same way
The firmness of suspension centre check at any time in journey, it is ensured that the dismounting of unit template and Hoisting Security steadily carry out.
Further, in the step B, form removable is torn open by original size of former design cell template in principle
It removes, when that can not be had bad luck greatly very much because of the unit template size removed, can be used on the operational platform according to field channels situation
Template is cut into several fritters by gas cutting.
Further, it in the step B, when removing unit template, is closely connect when encountering Individual cells template with concrete
Jack one end can be fixed on unit template nearby, by the unit by the way of drawing by the case where touching can not remove
Form removable, scene cannot take the mode for the violence dismounting pounded and prized firmly firmly to carry out dismounting operation.
Further, in the step C, when delivery unit template, using self-control flat car, the unit template removed is transported
To the round mouth end of wind-tunnel runner, using the electric hoist being mounted on the outside of round mouth end by the unit template removed with being hoisted to fan house
On face, has bad luck the nigh vacant lot of unit template to ground and concentrate neatly packed, and use crane handling blowing machine room, entrucking is transported
It walks.
Further, it in the step C, when electricity consumption cucurbit slings unit template, is held in wind-tunnel runner with jack
Unit template, and slowly loosen, until unit template level removes wind-tunnel runner and can loosen jack, and on the outside of wind-tunnel runner
Special messenger is arranged to be slowly drop down to blower room floor using rope guidance unit template.
Further, in the step C, when flat car can not move on scaffold board, scene can be on scaffold board upper berth
Sheet metal, during transportation, at wind-tunnel runner round mouth end, setting jack pulls trolley toward the movement of round mouth end, after reaching round mouth end
Flat car is temporarily fixed on wind-tunnel runner bottom surface using jack.
Further, in the step C, when electricity consumption cucurbit slings unit template, suspension centre on the outside of wind-tunnel runner round mouth end
Using I-steel A-frame, horizontal I-steel is welded using the pre-embedded steel slab and angle steel of wind-tunnel side wall of flow channel, and oblique I-steel is adopted
With screw through walls and Boards wall, connection is fully welded between I-steel and between I-steel and pre-embedded steel slab or angle steel.
Compared with the existing technology, present invention has the advantage that
1, the present invention efficiently solves the demoulding construction difficult problem of ultra-large type wind-tunnel circle change side's diffuser internal model support system, answers
With this method, can safely and reliably complete the Demolition Construction of internal model support system, prevent damage spreading section concrete inner wall at
Quality guarantees smoothly completing for construction.
2, the present invention by diffuser punching block dismounting be divided into three sections, every section of layering construct, can be formed cross construction make
Industry, save material, science, rationally；
3, when form removable is constructed, work surface completely spreads scaffold board, lower part completely hangs safety net, construction safety can be effectively eliminated
Hidden danger, it is ensured that work progress is safe and reliable；
4, the transport for carrying out template in the present invention using flat bogie, can improve working efficiency, using effect is good；
5, the present invention, which takes, first removes top plate and side wall template and can prevent finally from square Duan Zhiyuan sections of dismounting bottom plate steel form
Only damage spreading section underplate concrete final product quality in demolishing process；
6, the dismounting of the invention using very traditional jack and hoist engine as template, transportation power system, it is not only real
The mechanization of mould material transport is showed, and mature mechanical device makes safety guaranteed.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the removal step schematic diagram of internal model support system；
Fig. 2 is the dismounting direction schematic diagram of internal model support system；
Fig. 3 is the scheme of installation of scaffold board and safety net；
Fig. 4 is unit template Demolition Construction schematic diagram；
Fig. 5 is the enlarged diagram of part A in Fig. 4；
Fig. 6 is the transport construction schematic diagram of unit template；
Fig. 7 is the structural schematic diagram of internal model support system.
Description of symbols:
Steel cylinder template in 1-；2- formed steel construction support frame；11- justifies section；12- changeover portion；The side's 13- section；14- unit template；
21- cross-brace column；22- longitudinal bracing column；31- scaffold board；32- safety net；41- connection reinforcing bar；42- suspension hook；43- falls
Chain；The interim hole 44-；45- flat car；51- electric hoist；52- I-steel.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
The internal model support system of ultra-large type wind-tunnel diffuser of the present invention, the interior steel cylinder mould including a special-shaped tubular
Plate 1 and multiple formed steel construction support frames 2；Interior steel cylinder template 1 is spliced by the different unit template 14 of muti-piece size shape；It is interior
One end port of steel cylinder template 1 is circle, and other end port is rectangle, and interior steel cylinder template 1 is by circle section 11, changeover portion 12 and square section
13 compositions, total length 33.146m.Formed steel construction support frame 2 is one by more cross-brace columns 21 and Duo Gen longitudinal bracing
The perpendicular gridiron of three cross three that column 22 is formed by connecting, after being installed, formed steel construction support frame 2 is arranged successively branch along axial direction
Interior steel cylinder template 1 is supported and is positioned inside interior steel cylinder template 1 by support.
After the completion of concreting, interior steel cylinder template 1 is located in wind1 tunnel laboratory semi-enclosed space, and top plate is closing
, only round section 11 has a operation port, and construction site is narrow, and height is higher, meanwhile, interior 1 mass of steel cylinder template is big, it is therefore desirable to
Successively staged and layered removes interior steel cylinder template 1 and formed steel construction support frame 2；It is overall to remove principle are as follows: safety first, construction have
Sequence, Zi circle to side, from top to bottom, paragraph by paragraph successively dismounting.
Specifically, as shown in figs. 1-7, a kind of demoulding method for wind-tunnel diffuser internal model support system, including it is as follows
Step:
Step A, it makes rational planning for demoulding sequence of construction, internal model support system is divided into three sections by length, first segment 0~
12m, 13~24m of second segment, 25~33.146m of third section；
Step B, it, to the dismounting direction of square section 13, successively carries out removing interior steel cylinder template 1 and type paragraph by paragraph according to by circle section 11
Supporting frame with steel structure 2；
Step B1, first segment is removed: the unit template 14 and the type at respective heights at the top of steel cylinder template 1 in first removing
Supporting frame with steel structure 2；Then the unit template 14 of 1 two sides of steel cylinder template and the formed steel construction branch at respective heights in removing
Support 2；One of formed steel construction support frame 2 bottom is removed later；
Step B2, second segment is removed: the unit template 14 and the type at respective heights at the top of steel cylinder template 1 in first removing
Supporting frame with steel structure 2；Then the unit template 14 of 1 two sides of steel cylinder template and the formed steel construction branch at respective heights in removing
Support 2；One of formed steel construction support frame 2 bottom is removed later；
Step B3, third section is removed: the unit template 14 and the type at respective heights at the top of steel cylinder template 1 in first removing
Supporting frame with steel structure 2；Then the unit template 14 of 1 two sides of steel cylinder template and the formed steel construction branch at respective heights in removing
Support 2；One of formed steel construction support frame 2 bottom is removed later；
Step B4, all tops to formed steel construction support frame 2 and interior steel cylinder template 1 all in internal model support system
Unit template 14 and side unit template 14 remove after the completion of, eventually remove the bottom of steel cylinder template 1 in three sections
Unit template 14.
The present invention, which takes, first removes top plate and side wall template, finally removes bottom plate steel form, energy from square section 13 to circle section 11
Prevent damage spreading section underplate concrete final product quality in demolishing process.
Step C, the unit template 14 removed is transported.
Wherein, in stepb, it when removing each section of internal model support system, needs to support in the formed steel construction of construction layer
Scaffold board 31 is completely spread in the work surface of frame 2, safety net 32 is completely hung under scaffold board 31, and in next stratotype supporting frame with steel structure 2
Safety net 32 is completely hung down.Construction safety hidden danger can be effectively eliminated, it is ensured that work progress is safe and reliable.
Specifically, the method for removing every module unit template 14 is to utilize coagulation at the top of being embedded in advance when concrete construction
Connection reinforcing bar 41 in soil is used as hard point, and in connection 41 lower end welded suspending hook 42 of reinforcing bar, every 14 corner of module unit template sets four
A suspension centre, and be hung to unit template 14 on the operating platform that scaffold board 31 is formed using jack 43, further according to unit template 14
Size operating platform is dismantled into an interim hole 44, unit template 14 is hoisted on interior wind-tunnel runner bottom plate, finally will
The scaffold board 31 and safety net 32 at interim hole 44 restore.
When removing every module unit template 14, to prevent template from falling suddenly, four suspension centres in every 14 corner of module unit template
It must be connected firmly with suspension hook 42 or the unit template closed on 14, when loosening 14 screw of unit template, first the screw of pine half, is adopted
The unit template 14 for pulling Unscrewed screw position is gradually reinforced with jack 43, is disengaged it from concrete surface, is then loosened again
The other half screw of unit template 14 makes unit template 14 be detached from wind-tunnel runner concrete surface, work progress using same way
In suspension centre check at any time firmness, it is ensured that the dismounting of unit template 14 and Hoisting Security steadily carry out.
Form removable is removed by original size of former design cell template 14 in principle, when the unit mould because removing
It, can be according to field channels situation on the operational platform with gas cutting by mould when 14 size of plate too big (such as 3.5m × 2m) can not have bad luck
Plate is cut into several fritters.Big unit template 14 can be cut into two pieces or four pieces.
When removing unit template 14, it is in close contact the case where can not removing with concrete when encountering Individual cells template 14,
43 one end of jack can be fixed on unit template 14 (or antimere unit template 14) nearby, by the way of drawing
The unit template 14 is removed, scene cannot take the mode for the violence dismounting pounded and prized firmly firmly to carry out dismounting operation.
In step C, using self-control flat car 45, the unit template 14 removed is transported to the round mouth end of wind-tunnel runner, is utilized
It is mounted on the electric hoist 51 on the outside of round mouth end the unit template 14 removed is hoisted on blower room floor.It has bad luck to the list on ground
The nigh vacant lot of meta template 14 is concentrated neatly packed, and with crane handling blowing machine room, is entrucked and carried away.Using flat car 45 into
The transport of row template, can improve working efficiency, and using effect is good.
Pay attention to when slinging unit template 14 with electric hoist 51, hold unit template 14 with jack 43 in wind-tunnel runner,
And slowly loosen, until the horizontal wind-tunnel runner that removes of unit template 14 can loosen jack 43 completely, and on the outside of wind-tunnel runner
Special messenger is arranged to be slowly drop down to blower room floor using rope guidance unit template 14.
When flat car 45 can not move on scaffold board 31, scene can be in 31 upper berth 3mm steel sheet and plate of scaffold board.Due to
Wind-tunnel runner bottom surface is that round mouth end is high, square opening section is low, therefore during transportation, at wind-tunnel runner round mouth end, setting jack 43 is drawn
It is mobile toward round mouth end to drag trolley, flat car 45 is temporarily fixed on wind-tunnel runner bottom surface using jack 43 after reaching round mouth end.
When slinging unit template 14 with electric hoist 51, suspension centre uses 18# I-steel 52 3 on the outside of wind-tunnel runner round mouth end
Angle support, horizontal I-steel 52 are welded using the pre-embedded steel slab and angle steel of wind-tunnel side wall of flow channel, and oblique I-steel 52 is worn using 4M20
Wall screw and Boards wall are fully welded, weld bead height between I-steel 52 and between I-steel 52 and pre-embedded steel slab or angle steel
10mm。
The present invention efficiently solves the demoulding construction difficult problem of ultra-large type wind-tunnel circle change side's diffuser internal model support system, application
This method can safely and reliably complete the Demolition Construction of internal model support system, prevent damage spreading section concrete inner wall finished product
Quality guarantees smoothly completing for construction.By in diffuser punching block dismounting be divided into three sections, every section of layering construct, stream can be formed
Water construction operation, save material, science, rationally.The present invention is made using very traditional jack 43 and hoist engine in transportational process
Dismounting, transportation power system for template not only realize the mechanization of mould material transport, but also mature mechanical device makes
It is guaranteed to obtain safety.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of demoulding method for wind-tunnel diffuser internal model support system, characterized by the following steps:
Step A, it makes rational planning for demoulding sequence of construction, internal model support system is divided into several segments, first segment, second by length
Section, third section ...；
Step B, according to by circle section (11) to the dismounting direction of square section (13), successively carry out removing paragraph by paragraph interior steel cylinder template (1) and
Formed steel construction support frame (2)；When successively removing first segment, second segment, each section of the dismounting of third section ..., interior steel cylinder mould is first removed
Formed steel construction support frame (2) at the unit template (14) and respective heights at the top of plate (1)；Then steel cylinder template in removing
The unit template (14) and the formed steel construction support frame (2) at respective heights of (1) two side；A channel type bottom is removed later
Supporting frame with steel structure (2)；
The unit at all tops to formed steel construction support frame (2) and interior steel cylinder template (1) all in internal model support system
After the completion of the unit template (14) of template (14) and side is removed, the unit of the bottom of interior steel cylinder template (1) is eventually removed
Template (14)；
Step C, the unit template removed (14) is transported.
2. the internal model support system construction method according to claim 1 for ultra-large type wind-tunnel diffuser, feature exist
In: in the step B, when removing to each section of internal model support system, need the work in the formed steel construction support frame (2) of construction layer
It completely spreads scaffold board (31), formation operation platform, is completely hung under scaffold board (31) safety net (32) on industry face, and in next stratotype steel
Safety net (32) are completely hung under structural supporter (2).
3. the internal model support system construction method according to claim 2 for ultra-large type wind-tunnel diffuser, feature exist
In: in the step B, the method for removing every module unit template (14) are as follows: mixed using top is embedded in when concrete construction in advance
Connection reinforcing bar (41) in solidifying soil is used as hard point, in connection reinforcing bar (41) lower end welded suspending hook (42), every module unit template
(14) corner sets four suspension centres, and unit template (14) is hung to the operating platform of scaffold board (31) formation using jack (43)
On, operating platform is dismantled into an interim hole (44) further according to the size of unit template (14), by unit template (14) handling
On to interior wind-tunnel runner bottom plate, finally the scaffold board (31) of interim hole (44) and safety net (32) are restored.
4. the internal model support system construction method according to claim 3 for ultra-large type wind-tunnel diffuser, feature exist
In: in the step B, when removing every module unit template (14), to prevent template from falling suddenly, every module unit template (14) corner
Four suspension centres must be connected firmly with suspension hook (42) or the unit template closed on (14), loosen unit template (14) screw when,
The first screw of pine half, the unit template (14) for pulling Unscrewed screw position is gradually reinforced using jack (43), is disengaged it from
Then concrete surface loosens the other half screw of unit template (14) again, be detached from unit template (14) using same way
Wind-tunnel runner concrete surface, the firmness of suspension centre check at any time in work progress, it is ensured that the dismounting of unit template (14) and hang
Safety and steady is filled to carry out.
5. the internal model support system construction method according to claim 3 for ultra-large type wind-tunnel diffuser, feature exist
In: in the step B, form removable is removed by original size of former design cell template (14) in principle, when because removing
Unit template (14) size come be when can not have bad luck greatly very much, can be according to field channels situation on the operational platform with gas cutting by mould
Plate is cut into several fritters.
6. the internal model support system construction method according to claim 3 for ultra-large type wind-tunnel diffuser, feature exist
In: it, can not with concrete close contact when encountering Individual cells template (14) when removing unit template (14) in the step B
Jack (43) one end can be fixed on unit template (14) nearby, by the list by the way of drawing by the case where dismounting
Meta template (14) is removed, and scene cannot take the mode for the violence dismounting pounded and prized firmly firmly to carry out dismounting operation.
7. the internal model support system construction method according to claim 1 for ultra-large type wind-tunnel diffuser, feature exist
In: in the step C, when delivery unit template (14), using self-control flat car (45), the unit template removed (14) is transported to
The unit template removed (14) is hoisted to wind using the electric hoist (51) being mounted on the outside of round mouth end by the round mouth end of wind-tunnel runner
On machine room floor, have bad luck to the nigh vacant lot of the unit template on ground (14) concentrate it is neatly packed, and with crane handling outlet air
Machine room, entrucks and carries away.
8. the internal model support system construction method according to claim 7 for ultra-large type wind-tunnel diffuser, feature exist
In: in the step C, when slinging unit template (14) with electric hoist (51), list is held with jack (43) in wind-tunnel runner
Meta template (14), and slowly loosen, until unit template (14) horizontal wind-tunnel runner that removes can loosen jack (43) completely, and
Special messenger is arranged to be slowly drop down to blower room floor using rope guidance unit template (14) on the outside of wind-tunnel runner.
9. the internal model support system construction method according to claim 7 for ultra-large type wind-tunnel diffuser, feature exist
In: in the step C, when flat car (45) can not move on scaffold board (31), scene can be thin on scaffold board (31) upper berth
Steel plate pulls trolley toward the movement of round mouth end in wind-tunnel runner round mouth end setting jack (43), reaches round mouth end during transportation
Flat car (45) is temporarily fixed on wind-tunnel runner bottom surface using jack (43) afterwards.
10. the internal model support system construction method according to claim 7 for ultra-large type wind-tunnel diffuser, feature exist
In: in the step C, when slinging unit template (14) with electric hoist (51), suspension centre uses work on the outside of wind-tunnel runner round mouth end
Word steel (52) A-frame, horizontal I-steel (52) are welded using the pre-embedded steel slab and angle steel of wind-tunnel side wall of flow channel, oblique I-steel
(52) screw through walls and Boards wall are used, it is equal between I-steel (52) and between I-steel (52) and pre-embedded steel slab or angle steel
It is fully welded connection.
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| CN201910598521.4A CN110274744B (en) | 2019-07-04 | 2019-07-04 | Form removal method for internal mold support system of wind tunnel diffusion section |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910598521.4A CN110274744B (en) | 2019-07-04 | 2019-07-04 | Form removal method for internal mold support system of wind tunnel diffusion section |
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| CN110274744B CN110274744B (en) | 2020-10-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211214A (en) * | 2022-02-21 | 2022-03-22 | 中国空气动力研究与发展中心高速空气动力研究所 | Wind tunnel complex curved surface contraction section forming method |
| CN114441132A (en) * | 2022-04-08 | 2022-05-06 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Side wall plate pulling device for large wind tunnel jet pipe section and pulling method thereof |
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| CN114211214B (en) * | 2022-02-21 | 2022-04-19 | 中国空气动力研究与发展中心高速空气动力研究所 | Wind tunnel complex curved surface contraction section forming method |
| CN114441132A (en) * | 2022-04-08 | 2022-05-06 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Side wall plate pulling device for large wind tunnel jet pipe section and pulling method thereof |
| CN114441132B (en) * | 2022-04-08 | 2022-06-17 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Side wall plate pulling device for large wind tunnel jet pipe section and pulling method thereof |
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