CN109944349A - Sandwich heat preservation steel concrete compound tube structure and its processing method - Google Patents
Sandwich heat preservation steel concrete compound tube structure and its processing method Download PDFInfo
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- CN109944349A CN109944349A CN201910273262.8A CN201910273262A CN109944349A CN 109944349 A CN109944349 A CN 109944349A CN 201910273262 A CN201910273262 A CN 201910273262A CN 109944349 A CN109944349 A CN 109944349A
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- steel
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- steel plate
- front spring
- insulating board
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 239
- 239000010959 steel Substances 0.000 title claims abstract description 239
- 150000001875 compounds Chemical class 0.000 title claims abstract description 19
- 238000004321 preservation Methods 0.000 title claims abstract description 16
- 238000003672 processing method Methods 0.000 title claims description 7
- 239000006260 foam Substances 0.000 claims abstract description 47
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000012946 outsourcing Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 9
- 238000009413 insulation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000009510 drug design Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000002910 structure generation Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
Sandwich heat preservation steel concrete compound tube structure, including vertically disposed left channel steel and right channel steel, front spring is welded between left channel steel and the front side of right channel steel, foam heat-insulating board is filled between front spring and rear steel plate, screw rod is equipped between front spring and rear steel plate, front spring and rear steel plate are stretched out in the both ends of screw rod respectively, several pegs are provided on left channel steel and right channel steel, the outer end of all peg and all screw rods is connected with reinforced mesh, the similar figures of the shape of the shape and rectangular drum like steel plate structure of reinforced mesh cross section, the outside of rectangular drum like steel plate structure has been poured reinforced mesh, external wrapping concrete layer including peg and screw pre-buried.The present invention has rational design, and compact-sized and intensity is high, avoids deformation in the handling process, and have good heat insulation effect, reduces concrete amount, reduce construction cost.
Description
Technical field
The invention belongs to assembled architecture technical field of construction, and in particular to a kind of sandwich heat preservation steel concrete compound tube structure and
Its processing method.
Background technique
In recent years, due to the jumping up of the raising of energy-saving and emission-reduction policy requirements and the price of labour power, simultaneously by
Start to get rid of low ebb in the application of popularity of the advanced technology in assembled architecture, assembled architecture, presentation rises rapidly
Trend.It mainly transports after factory is processed to construction site and is assembled in the component of assembled architecture, in factory
The steel concrete compound tube of processing has the following deficiencies: 1, structural strength is poor in the handling process, is easy to produce deformation；2, at the scene
The bonding strength for the node connecting between beam in work progress is not firm enough；3, steel concrete compound tube pours in center cavity
Thermal insulation property is poor after concrete, not energy-efficient；4, casting concrete is more, and construction cost is higher.
Summary of the invention
It is high, strong with beam connecting node to provide a kind of structural strength in order to solve shortcoming in the prior art by the present invention
Spend height, good heat preservation performance, construction cost low sandwich heat preservation steel concrete compound tube structure and its processing method.
In order to solve the above technical problems, the present invention adopts the following technical scheme: sandwich heat preservation steel concrete compound tube structure, including
Vertically disposed left channel steel and right channel steel, the notch of left channel steel and the notch of right channel steel or so are oppositely arranged, left channel steel and right slot
Be welded with front spring between the front side of steel, be welded with rear steel plate between left channel steel and the rear side of right channel steel, left channel steel, right channel steel,
Front spring and rear steel plate form rectangular drum like steel plate structure, and foam heat-insulating board is filled between front spring and rear steel plate, and foam is protected
The thickness of warm plate is equal to the distance between front spring and rear steel plate, and between the left side of foam heat-insulating board and left channel steel and foam is protected
It is all had between the right side of warm plate and right channel steel and vertically pours channel, correspondence offers several screw threads on front spring and rear steel plate
Hole, threaded hole internal screw thread are connected with screw rod, and the front side of front spring and the rear side of rear steel plate are stretched out in the both ends of screw rod respectively, with foam
The corresponding screw rod of insulation board is horizontally disposed on foam heat-insulating board, left channel steel and right channel steel several pegs, a left side
The peg right end of side passes through left channel steel and extend into vertically pouring in channel for left side, and the peg left end on right side passes through right channel steel and protrudes into
To vertically pouring in channel for right side, the outer end of all pegs and all screw rods is connected with reinforced mesh, reinforced mesh
The similar figures of the shape of the shape and rectangular drum like steel plate structure of cross section, the outside of rectangular drum like steel plate structure has been poured steel
External wrapping concrete layer including muscle mesh sheet, peg and screw pre-buried.
Be provided with wall beam on left channel steel and right channel steel and connect node, each wall beam connect node and include it is a branch of in left-right direction
Rectangular opening is offered on horizontally disposed embedded ribs, left channel steel and right channel steel, which is threaded through in rectangular opening, foam
The side of insulation board offers the groove for accommodating embedded ribs, and the inner end of embedded ribs is across vertically pouring channel extend into groove
Interior, the outer end of embedded ribs is fixedly connected with connecting plate, and the embedded ribs and connecting plate outside left channel steel or right channel steel are pre-buried
In outsourcing concrete layer, the outside face of connecting plate is flushed with the left side of external wrapping concrete layer or right side.
Corresponding between front spring and rear steel plate to offer several unthreaded holes, the quantity of unthreaded hole is less than threaded hole, unthreaded hole
Diameter is greater than threaded hole, and reinforcement steel pipe is equipped between the corresponding unthreaded hole in front and back, reinforce steel pipe front-end and back-end respectively with it is preceding
The trailing flank of steel plate and the welding of right steel plate, all reinforcement steel pipes both pass through foam heat-insulating board.
The top of foam heat-insulating board is lower than rectangular drum like steel plate structure upper port, and the bottom of rectangular drum like steel plate structure is higher than
Rectangular drum like steel plate structure lower port.
Between the peg in left side and left channel steel and the peg on right side with by being threadedly coupled between channel steel.
The processing method of sandwich heat preservation steel concrete compound tube structure, comprising the following steps:
(1) threaded hole is offered on left channel steel, right channel steel, front spring and rear steel plate, in the setting position of left channel steel and right channel steel
It sets and opens up rectangular opening, while groove corresponding with rectangular opening is set in the side of foam heat-insulating board, if being bored on foam heat-insulating board
Dry pore and gross porosity, drilling and front spring, rear steel plate upper screwed hole is corresponding arranges；
(2) by left channel steel and the vertically opposite arrangement of right channel steel, rear steel plate is welded between left channel steel and the rear side of right channel steel；
(3) foam heat-insulating board is set in rear steel plate leading flank, foam heat-insulating board trailing flank is adhered on front side of rear steel plate by glue
Face keeps groove and rectangular opening or so corresponding, and the threaded hole on pore and rear steel plate corresponds, and gross porosity and unthreaded hole correspond,
And it reserves and vertically pours channel；
(4) upper glue is smeared in the leading flank of foam heat-insulating board, front spring is placed between left channel steel and the front side of right channel steel, is made
Threaded hole, unthreaded hole on front spring correspond respectively to pore and gross porosity on foam heat-insulating board, by front spring left and right side point
It is not welded on left channel steel and right channel steel；
(5) screw rod, the length that screw rod rear and front end is stretched out front spring and rear steel plate respectively and stretched out then are penetrated in threaded hole
It is equal, reinforcement steel pipe is penetrated in unthreaded hole, the rear and front end for reinforcing steel pipe is respectively welded on front spring and rear steel plate, reinforces steel
It is 1-3cm that front spring and the length of rear steel plate are protruded in pipe both ends；
(6) the good connecting plate of pre-production and embedded ribs are passed through into rectangular opening and extend into groove, in left channel steel and right channel steel
On threaded hole internal screw thread connect peg, so that peg is protruded from being equidistant outside left channel steel and right channel steel；
(7) reinforced mesh is arranged in the outer end of peg and screw rod, in the disposed outside template of reinforced mesh, casting concrete is by steel
Muscle mesh sheet, peg, screw rod and embedded ribs outside be embedded in, template is dismantled after solidification and forms external wrapping concrete layer.
By adopting the above technical scheme, the present invention is transported to construction site, after factory process completes in rectangular drum like
Casting concrete inside steel plate structure does not have to support template, to form steel concrete compound tube shear wall.
Foam heat-insulating board plays the heat insulation effect for improving steel concrete compound tube shear wall；And reduce the dosage of concrete,
Reduce construction cost.
Reinforce the effect that steel pipe improves bonding strength between front spring and rear steel plate and avoids square when carrying the present invention
The effect of shape tubular steel plate structure generation torsional deformation.
Wall beam connects node and is first embedded in external wrapping concrete layer in factory's manufacture, has good stablize in transportational process
Property.It is poured into the concrete inside rectangular drum like steel plate structure during on-site construction, bonding strength is big, highly reliable.
Peg is threaded on channel steel and is cast in the concrete inside rectangular drum like steel plate structure, plays enhancing
The effect of channel steel shearing strength.
In conclusion the present invention has rational design, compact-sized and intensity is high, avoids deformation in the handling process, and have
There is good heat insulation effect, reduce concrete amount, reduces construction cost.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the left view of Fig. 1.
Specific embodiment
As shown in Figure 1-Figure 3, sandwich heat preservation steel concrete compound tube structure of the invention, including vertically disposed 1 He of left channel steel
Right channel steel 2, notch and the notch of right channel steel 2 of left channel steel 1 or so are oppositely arranged, and are welded between left channel steel 1 and the front side of right channel steel 2
It is connected to front spring 3, rear steel plate 4, left channel steel 1, right channel steel 2,3 and of front spring are welded between left channel steel 1 and the rear side of right channel steel 2
Steel plate 4 forms rectangular drum like steel plate structure afterwards, and foam heat-insulating board 5, foam heat-insulating board 5 are filled between front spring 3 and rear steel plate 4
Thickness be equal to the distance between front spring 3 and rear steel plate 4, between the left side of foam heat-insulating board 5 and left channel steel 1 and foam guarantor
It is all had between the right side and right channel steel 2 of warm plate 5 and vertically pours channel 6, correspondence offers several on front spring 3 and rear steel plate 4
A threaded hole, threaded hole internal screw thread be connected with screw rod 7, and front side and the rear steel plate 4 of front spring 3 are stretched out in the both ends of screw rod 7 respectively
Rear side, screw rod 7 corresponding with foam heat-insulating board 5 are horizontally disposed on foam heat-insulating board 5, left channel steel 1 and right channel steel 2
There are several pegs 8,8 right end of peg in left side passes through left channel steel 1 and extend into vertically pouring in channel 6 for left side, the bolt on right side
It follows closely 8 left ends and extend into vertically pouring in channel 6 for right side, the outer end of all pegs 8 and all screw rods 7 across right channel steel 2
Portion is connected with reinforced mesh 9, the similar figures of the shape of the shape and rectangular drum like steel plate structure of 9 cross section of reinforced mesh, rectangle
The outside of tubular steel plate structure, which pours, is embedded in reinforced mesh 9, peg 8 and screw rod 7 on interior external wrapping concrete layer 10.
It is provided with wall beam on left channel steel 1 and right channel steel 2 and connects node, it includes a branch of along right and left that each wall beam, which connects node,
To horizontally disposed embedded ribs 11, rectangular opening is offered on left channel steel 1 and right channel steel 2, which is threaded through rectangle
In hole, the side of foam heat-insulating board 5 offers the groove 12 for accommodating embedded ribs 11, and the inner end of embedded ribs 11, which passes through, vertically pours
It builds channel 6 to extend into groove 12, the outer end of embedded ribs 11 is fixedly connected with connecting plate 13, is located at outside left channel steel 1 or right channel steel 2
The embedded ribs 11 and connecting plate 13 in portion are embedded in external wrapping concrete layer 10, the outside face of connecting plate 13 and external wrapping concrete layer
10 left side or right side flush.
Corresponding between front spring 3 and rear steel plate 4 to offer several unthreaded holes, the quantity of unthreaded hole is less than threaded hole, unthreaded hole
Diameter be greater than threaded hole, be equipped between the corresponding unthreaded hole in front and back and reinforce steel pipe 14, reinforce 14 front-end and back-end of steel pipe point
It is not welded with the trailing flank of front spring 3 and right steel plate, all reinforcement steel pipes 14 both pass through foam heat-insulating board 5.
The top of foam heat-insulating board 5 is lower than rectangular drum like steel plate structure upper port, and the bottom of rectangular drum like steel plate structure is high
In rectangular drum like steel plate structure lower port.
Between the peg 8 in left side and left channel steel 1 and the peg 8 on right side with by being threadedly coupled between channel steel.
The processing method of sandwich heat preservation steel concrete compound tube structure, comprising the following steps:
(1) threaded hole is offered on left channel steel 1, right channel steel 2, front spring 3 and rear steel plate 4, in left channel steel 1 and right channel steel 2
Setting position opens up rectangular opening, while groove 12 corresponding with rectangular opening is arranged in the side of foam heat-insulating board 5, in foam thermal insulation
Bore several pores and gross porosity on plate 5, drilling and front spring 3,4 upper screwed hole of rear steel plate is corresponding arranges；
(2) by left channel steel 1 and the vertically opposite arrangement of right channel steel 2, by rear steel plate 4 be welded to left channel steel 1 and right channel steel 2 rear side it
Between；
(3) foam heat-insulating board 5 is set in rear 4 leading flank of steel plate, 5 trailing flank of foam heat-insulating board is adhered to rear steel plate 4 by glue
Leading flank keeps groove 12 and rectangular opening or so corresponding, and the threaded hole on pore and rear steel plate 4 corresponds, gross porosity and unthreaded hole one
One is corresponding, and reserves and vertically pour channel 6；
(4) smear upper glue in the leading flank of foam heat-insulating board 5, by front spring 3 place left channel steel 1 and right channel steel 2 front side it
Between, so that the threaded hole on front spring 3, unthreaded hole is corresponded respectively to pore and gross porosity on foam heat-insulating board 5, by 3 left side of front spring
It is welded on left channel steel 1 and right channel steel 2 with right side；
(5) screw rod 7 is then penetrated in threaded hole, 7 rear and front end of screw rod is stretched out front spring 3 and rear steel plate 4 respectively and stretched out
Equal length penetrates in unthreaded hole and reinforces steel pipe 14, and the rear and front end for reinforcing steel pipe 14 is respectively welded at front spring 3 and rear steel plate
On 4, the length for reinforcing 14 both ends of steel pipe protrusion front spring 3 and rear steel plate 4 is 1-3cm；
(6) the good connecting plate 13 of pre-production and embedded ribs 11 are passed through into rectangular opening and extend into groove 12, in left 1 He of channel steel
Threaded hole internal screw thread on right channel steel 2 connects peg 8, and peg 8 is made to protrude from being equidistant outside left channel steel 1 and right channel steel 2；
(7) reinforced mesh 9 is arranged in the outer end of peg 8 and screw rod 7, in the disposed outside template of reinforced mesh 9, casting concrete
The outside of reinforced mesh 9, peg 8, screw rod 7 and embedded ribs 11 is embedded in interior, disassembly template formation external wrapping concrete after solidification
Layer 10.
The present embodiment not makes any form of restriction shape of the invention, material, structure etc., all according to this hair
Bright technical spirit any simple modification, equivalent change and modification to the above embodiments, belong to the technology of the present invention side
The protection scope of case.
Claims (6)
1. sandwich heat preservation steel concrete compound tube structure, it is characterised in that: including vertically disposed left channel steel and right channel steel, left channel steel
Notch and the notch of right channel steel or so are oppositely arranged, and are welded with front spring between left channel steel and the front side of right channel steel, left channel steel and
Rear steel plate is welded between the rear side of right channel steel, left channel steel, right channel steel, front spring and rear steel plate form rectangular drum like steel plate knot
Structure, is filled with foam heat-insulating board between front spring and rear steel plate, the thickness of foam heat-insulating board is equal between front spring and rear steel plate
Distance, all had between the left side of foam heat-insulating board and left channel steel and between the right side of foam heat-insulating board and right channel steel vertical
Channel is poured, correspondence offers several threaded holes on front spring and rear steel plate, and threaded hole internal screw thread is connected with screw rod, screw rod
The front side of front spring and the rear side of rear steel plate are stretched out in both ends respectively, and screw rod corresponding with foam heat-insulating board passes through foam heat-insulating board,
Horizontally disposed on left channel steel and right channel steel to have several pegs, the peg right end in left side passes through left channel steel and extend into left side
Vertically pour in channel, the peg left end on right side passes through right channel steel and extend into vertically pouring in channel for right side, all bolts
The outer end of nail and all screw rods is connected with reinforced mesh, shape and the rectangular drum like steel plate structure of reinforced mesh cross section
The similar figures of shape, the outside of rectangular drum like steel plate structure are poured the outsourcing including reinforced mesh, peg and screw pre-buried
Concrete layer.
2. sandwich heat preservation steel concrete compound tube structure according to claim 1, it is characterised in that: on left channel steel and right channel steel
Be provided with wall beam and connect node, each wall beam connects node and includes a branch of embedded ribs horizontally disposed in left-right direction, left channel steel and
Rectangular opening is offered on right channel steel, which is threaded through in rectangular opening, and the side of foam heat-insulating board is offered for holding
Receive the grooves of embedded ribs, the inner end of embedded ribs, which passes through, vertically to be poured channel and extend into groove, and the outer end of embedded ribs is fixedly connected
There is connecting plate, the embedded ribs and connecting plate outside left channel steel or right channel steel are embedded in external wrapping concrete layer, connecting plate
Outside face flushed with the left side of external wrapping concrete layer or right side.
3. sandwich heat preservation steel concrete compound tube structure according to claim 2, it is characterised in that: front spring and rear steel plate it
Between it is corresponding offer several unthreaded holes, the quantity of unthreaded hole is less than threaded hole, and the diameter of unthreaded hole is greater than threaded hole, and front and back is corresponding
It is equipped with reinforcement steel pipe between unthreaded hole, reinforces steel pipe front-end and back-end and is welded respectively with the trailing flank of front spring and right steel plate, institute
Some reinforcement steel pipes both pass through foam heat-insulating board.
4. sandwich heat preservation steel concrete compound tube structure according to claim 3, it is characterised in that: the top of foam heat-insulating board is low
It is higher than rectangular drum like steel plate structure lower port in the bottom of rectangular drum like steel plate structure upper port, rectangular drum like steel plate structure.
5. sandwich heat preservation steel concrete compound tube structure according to claim 4, it is characterised in that: the peg in left side and left channel steel
Between and right side peg with by being threadedly coupled between channel steel.
6. the processing method of sandwich heat preservation steel concrete compound tube structure according to claim 5, it is characterised in that: including
Following steps:
(1) threaded hole is offered on left channel steel, right channel steel, front spring and rear steel plate, in the setting position of left channel steel and right channel steel
It sets and opens up rectangular opening, while groove corresponding with rectangular opening is set in the side of foam heat-insulating board, if being bored on foam heat-insulating board
Dry pore and gross porosity, drilling and front spring, rear steel plate upper screwed hole is corresponding arranges；
(2) by left channel steel and the vertically opposite arrangement of right channel steel, rear steel plate is welded between left channel steel and the rear side of right channel steel；
(3) foam heat-insulating board is set in rear steel plate leading flank, foam heat-insulating board trailing flank is adhered on front side of rear steel plate by glue
Face keeps groove and rectangular opening or so corresponding, and the threaded hole on pore and rear steel plate corresponds, and gross porosity and unthreaded hole correspond,
And it reserves and vertically pours channel；
(4) upper glue is smeared in the leading flank of foam heat-insulating board, front spring is placed between left channel steel and the front side of right channel steel, is made
Threaded hole, unthreaded hole on front spring correspond respectively to pore and gross porosity on foam heat-insulating board, by front spring left and right side point
It is not welded on left channel steel and right channel steel；
(5) screw rod, the length that screw rod rear and front end is stretched out front spring and rear steel plate respectively and stretched out then are penetrated in threaded hole
It is equal, reinforcement steel pipe is penetrated in unthreaded hole, the rear and front end for reinforcing steel pipe is respectively welded on front spring and rear steel plate, reinforces steel
It is 1-3cm that front spring and the length of rear steel plate are protruded in pipe both ends；
(6) the good connecting plate of pre-production and embedded ribs are passed through into rectangular opening and extend into groove, in left channel steel and right channel steel
On threaded hole internal screw thread connect peg, so that peg is protruded from being equidistant outside left channel steel and right channel steel；
(7) reinforced mesh is arranged in the outer end of peg and screw rod, in the disposed outside template of reinforced mesh, casting concrete is by steel
Muscle mesh sheet, peg, screw rod and embedded ribs outside be embedded in, template is dismantled after solidification and forms external wrapping concrete layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910273262.8A CN109944349B (en) | 2019-04-04 | Sandwich heat-insulating steel concrete combined pipe structure and processing and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910273262.8A CN109944349B (en) | 2019-04-04 | Sandwich heat-insulating steel concrete combined pipe structure and processing and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109944349A true CN109944349A (en) | 2019-06-28 |
| CN109944349B CN109944349B (en) | 2024-05-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899544A (en) * | 2021-12-09 | 2022-01-07 | 中国飞机强度研究所 | Airplane climate test connecting device and parameter optimization method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201459953U (en) * | 2009-06-05 | 2010-05-12 | 陈云 | Thermal-insulation combined shear wall with double-layer steel plates |
| CN107989238A (en) * | 2017-12-13 | 2018-05-04 | 刘家宇 | A kind of cast-in-place sandwiched heat-preservation shear wall structure, assembled architecture and engineering method |
| CN108487545A (en) * | 2018-04-26 | 2018-09-04 | 河南绿建建筑科技有限公司 | End heavier-duty steel concrete compound tube |
| CN210049428U (en) * | 2019-04-04 | 2020-02-11 | 河南绿建建筑科技有限公司 | Sandwich heat-insulating steel concrete composite pipe structure |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201459953U (en) * | 2009-06-05 | 2010-05-12 | 陈云 | Thermal-insulation combined shear wall with double-layer steel plates |
| CN107989238A (en) * | 2017-12-13 | 2018-05-04 | 刘家宇 | A kind of cast-in-place sandwiched heat-preservation shear wall structure, assembled architecture and engineering method |
| CN108487545A (en) * | 2018-04-26 | 2018-09-04 | 河南绿建建筑科技有限公司 | End heavier-duty steel concrete compound tube |
| CN210049428U (en) * | 2019-04-04 | 2020-02-11 | 河南绿建建筑科技有限公司 | Sandwich heat-insulating steel concrete composite pipe structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899544A (en) * | 2021-12-09 | 2022-01-07 | 中国飞机强度研究所 | Airplane climate test connecting device and parameter optimization method thereof |
| CN113899544B (en) * | 2021-12-09 | 2022-02-18 | 中国飞机强度研究所 | Airplane climate test connecting device and parameter optimization method thereof |
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