CN207700042U - A kind of protective device for circular-sectioned pier explosion-and-knock resistant - Google Patents
A kind of protective device for circular-sectioned pier explosion-and-knock resistant Download PDFInfo
- Publication number
- CN207700042U CN207700042U CN201721833015.1U CN201721833015U CN207700042U CN 207700042 U CN207700042 U CN 207700042U CN 201721833015 U CN201721833015 U CN 201721833015U CN 207700042 U CN207700042 U CN 207700042U
- Authority
- CN
- China
- Prior art keywords
- explosion
- steel pipe
- steel
- circular
- protective device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a kind of protective devices for circular-sectioned pier explosion-and-knock resistant, are related to science of bridge building and building structure technology field；Achieve the effect that explosion-proof percussion by rigid shielding structure filling flexible composite structure；Its rigid structure is designed as the arc hollow structure for adding one outside nuclear structure column by the external and built-in combined and spliced formation of cambered plate, the composite steel tube and anti-extrusion closely knit small steel pipe for the combined steel pipe, interior filled and process aluminium that filling is formed by several identical circumscribed Large Diameter Pipeline steel pipes of pipe with small pipe diameter in arc hollow structure, filling sand is being filled up at combined steel pipe, composite steel tube and the small steel pipe outer void of dense extrusion；The utility model can effectively protect nuclear structure column, plays the role of explosion-and-knock resistant, applied to have antiknock set up defences requirement bridge pier column and Important building similar structures column on.
Description
Technical field
The utility model is related to science of bridge building and building structure technology fields, specially a kind of anti-for circular-sectioned pier antiknock
The protective device of impact.
Background technology
In bridge structure, pier stud loses bearing capacity as the main member of carrying once destroying, and can cause
Structure partial component damage even overall structure collapses；Contemporary China's civilian industry combustible and explosive articles transport and social unstability
Situations such as factor and terrorist sabotage can cause bridge collapse, therefore be directed to explosion accident time of origin and space again
Uncertainty, to some have strategic importance, requirement of shelter traffic fortress on bridge pier column installation actively explosion-proof anti whip device
It is very important.
106702889 A of application number CN disclose a kind of bridge pier column section of explosion-and-knock resistant, and the program is from structure sheaf
Face optimizes pillarwork, and whole explosion-and-knock resistant is very capable, is not suitable for the explosion-proof reinforcing of existing pier stud；Application number
CN103088927 A disclose a kind of method injured using steel-concrete combined structure explosion-proof, and the program utilizes different thickness
The steel plate and coagulation local soil type of degree synthesize safeguard structure to resist Blast Load, for rigid explosion-and-knock resistant design method, lack
Weary flexible design factor, steel-concrete section is too thick to cause constructional difficulties, and is not suitable for additional explosion-proof knot on existing pier stud
Structure.Therefore it need to consider that a kind of additional explosion-proof impact-proof structure of design, energy factory assembling make, weight is reasonable, and protection effect is prominent
Go out and want easy for installation, and in local failure assembling repair and replacement.
Utility model content
The utility model has overcome the deficiencies of the prior art and provide a kind of protection dress for circular-sectioned pier explosion-and-knock resistant
It sets, which both can guarantee the overall construction intensity of column, resists blast impulse and destroys, and can effectively consume absorption shock wave energy
Amount, while newly-built explosion-and-knock resistant pier stud can be met and add the double requirements of blast resistance construction on the basis of original pier stud,
And can realize assembling prefabrication, the functions such as local damage energy assembled repair and replacement.
In order to achieve the above object, the utility model is achieved by the following technical solution：
For the protective device of circular-sectioned pier explosion-and-knock resistant, including multiple arcs hollow structure, the arc hollow
Structure includes that external cambered plate, built-in cambered plate, side seal close connecting plate, underseal closing plate, the external cambered plate and built-in arc
Panel closes connecting plate vertical connection by side seal, expansion bolt is provided on underseal closing plate, wherein expansion bolt is around underseal closing plate
Peripheral uniform ring is around arrangement, and the side seal, which closes in the middle part of connecting plate, is provided with inside semi-elliptical recess, and the setting of convex stick is being spelled
In recess after connecing, the side seal close connecting plate it is external it is vertical uniform be equipped with High-strength bolt hole, in the multiple arcs
Hollow structure head and the tail are fixed by the high-strength bolt being arranged in High-strength bolt hole and the longitudinally connected formation annular of convex stick.
The hollow space of the arc hollow structure is by multiple combined steel pipes, multiple composite steel tubes and multiple anti-extrusion close
Real small steel pipe alternately fill multiple minor-diameter steel-tubes by steel pipe and form by filling composition, the combined steel pipe, and composite steel tube is by steel
Pipe filled and process aluminium forms；With filling sand filling combined steel pipe, composite steel tube in the hollow space of the arc hollow structure
With the gap section other than anti-extrusion closely knit small steel pipe.
Further, matcoveredn, the protective layer and underseal closing plate are set on the outside of the arc hollow structure
Outer edge is concordant.
Further, the protective layer is formed using C20-C30 concrete castings.
Further, the external cambered plate, built-in cambered plate and side seal close connecting plate and are all made of wall thickness more than 3mm's
Hot rolling Q345R steel, the underseal closing plate are more than the hot rolling Q345R steel of 10mm using wall thickness.
Further, four arc hollow structure head and the tail are solid by the high-strength bolt being arranged in High-strength bolt hole
The longitudinally connected formation annular of fixed and convex stick.
Further, the outer diameter of the steel pipe is 2.5 times of the internal diameter of minor-diameter steel-tube, the anti-extrusion closely knit small steel
The internal diameter of pipe is identical as the internal diameter of minor-diameter steel-tube, and the outer diameter of the built-in cambered plate is 4 times of the outer diameter of steel pipe, described external
The internal diameter of cambered plate is 1.5 times of built-in cambered plate outer diameter.
Further, quantity >=3 of the minor-diameter steel-tube.
Further, foamed aluminium, the preferred hard of the porous polymer materials can be substituted with porous polymer materials
Cellular polyurethane.
Further, the foamed aluminium use the fine aluminium of yield strength 51-53Mpa to be made, cell size 2-3mm,
Relative density is 0.4-0.5, porosity 68%-78%.
Sand during the further filling sand uses：Grain size is the sandstone of 0.25-0.5mm, and fineness modulus is in 2.3-2.8
Between.
The utility model has following row advantageous effect compared with prior art.
1）The utility model use hollow rigid structure connecting inner flexible energy structure, by internal and external cambered surface board group at
Hollow structure carries out rigid protection, can effectively keep out extreme portions shock wave and film flying, while by using being filled out in hollow structure
The displacement of the combined steel pipe, composite steel tube and the anti-extrusion closely knit small steel pipe that fill deforms to absorb rushing after external arc panel large deformation
Energy is hit, the flexible fixed Combination steel pipe of filling sand energy, composite steel tube and anti-extrusion closely knit small steel pipe prevent its movement dislocation, and
After sand is completely filled in hollow structure progress gap, using a large amount of shock waves of mutual triboabsorption of sand.
2）The combined steel pipe that the utility model uses is made of large diameter steel pipe inscribe 3 and 3 or more minor-diameter steel-tube,
When by explosion wave, shock wave transmission is distributed in several minor-diameter steel-tubes of inscribe by large diameter steel pipe, is being passed through
Minor-diameter steel-tube absorbs energy after destroying large deformation, transmits the purpose for being finally reached and absorbing shock wave consumption layer by layer in this way；It is multiple
Closing steel pipe is formed by filled and process aluminium in steel pipe, and hard porous polyurethane or other light porous macromolecule materials also can be filled
Material, the purpose is to using the good advantage of foamed aluminium high damping vibration attenuation performance and impact energy absorptivity, be oppressed in shock wave compound
Remaining impact energy can be effectively sponged after pipe deformation；The convex rod iron that the utility model uses carves item similar to one to be made
Two hollow structures are combined closely, while can resist the intrusion of two arc hollow structural attachments shock waves.
3）The utility model cast-in-place foamed concrete, the material in nuclear structure column and outside plus at blast resistance construction intermediate gaps
It is porous to make it that there is good absorption and dispersion to impact load, while foam concrete belongs to inorganic material, and have
A large amount of closed small spaces, can play good refractory heat-insulating performance；By bubble concrete layer can by core column and
Outer explosion-and-knock resistant structure sheaf separates, and after by explosion wave, can effectively be protected together with outer explosion-and-knock resistant structure
Shield nuclear structure column is not hit wave action, and replaces explosion resistant structure layer in time in the case where not influencing structural core column function
Damage position.So the utility model is suitable for adding outer blast resistance construction on existing design cylinder, it is also applied for newly-built cylinder
Section design；The outer explosion-proof impact-proof structure of the utility model can be formed by multiple arcs hollow structure is combined and spliced, be suitble to
Prefabrication, batch machining production, scene is installed.
4）The utility model the cast-in-place layer concrete protective layer of outermost layer, the corrosion of outer steel pipe can be effectively prevent,
It allows the design pier stud to be no different with general RC pier studs appearance simultaneously, there is good concealment.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model circular-sectioned pier explosion-and-knock resistant protective device.
Fig. 2 is the horizontal cross-section schematic diagram of the utility model circular-sectioned pier explosion-and-knock resistant protective device.
Fig. 3 is the horizontal cross-section partial schematic diagram of the utility model circular-sectioned pier explosion-and-knock resistant protective device.
Fig. 4 is arc hollow structural schematic diagram described in the utility model.
Fig. 5 is combined steel pipe structural schematic diagram.
Fig. 6 is compound steel pipe structure schematic diagram.
Wherein, 1 it is protective layer, 2 be external cambered plate, 3 be filling sand, 4 be combined steel pipe, 5 is that side seal closes connecting plate, 6
It is anti-extrusion closely knit small steel pipe for composite steel tube, 7,8 be built-in cambered plate, 9 be foam concrete separation layer, 10 is nuclear structure
Column, 11 be underseal closing plate, 41 be steel pipe, 42 be minor-diameter steel-tube, 51 be convex stick, 52 be High-strength bolt hole, 53 be bolt, 62
For foamed aluminium.
Specific implementation mode
In order to make technical problem to be solved in the utility model, technical solution and advantageous effect be more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.This reality is described in detail with reference to embodiment
With novel technical solution, but protection domain is not limited by this.
As shown in figures 1 to 6, the protective device of circular-sectioned pier explosion-and-knock resistant, including four arc hollow structures, arc are used for
Shape hollow structure includes that external cambered plate 2, built-in cambered plate 8, side seal close connecting plate 5, underseal closing plate 11, wherein external cambered surface
Plate 2 and built-in cambered plate 8 close 5 vertical connection of connecting plate by side seal, and bolt 53, wherein bolt 53 are provided on underseal closing plate 11
Around the peripheral uniform ring of underseal closing plate 11 around arrangement, bolt 53 fixes underseal closing plate 11 with ground, and side seal closes 5 middle part of connecting plate and sets
It is equipped with inside semi-elliptical recess, in two arc hollow structures to form, two semi-elliptical recess docking, at this time by advance
Prefabricated convex stick 51 is inserted into；Convex stick 51 is arranged in spliced recess, and side seal closes connecting plate 5 external vertical uniform
Equipped with High-strength bolt hole 52, four arc hollow structures head and the tail fixed by the high-strength bolt being arranged in High-strength bolt hole 52 and
Convex stick 51 longitudinally connected formation annular.
The hollow space of arc hollow structure is by 4, two composite steel tubes 6 of a combined steel pipe and two anti-extrusion closely knit small
Steel pipe 7 alternately fill three minor-diameter steel-tubes 42 by steel pipe 41 and form by filling composition, combined steel pipe 4, and composite steel tube 6 is by steel pipe 41
Filled and process aluminium 62 forms；Combined steel pipe 4, composite steel tube 6 are filled with filling sand 3 and resist in the hollow space of arc hollow structure
Gap section other than the small steel pipe of dense extrusion 7.
Four arc hollow structure rings by filling form a kind of outer explosion-proof impact-proof structure of column around package structural column.
One layer concrete of casting forms protective layer 1 on the outside of explosion-proof impact-proof structure, thickness 40mm is protected, with arc hollow knot
Structure underseal 11 outer edges of closing plate are concordant.The concrete external protection 1 uses C25 concrete, it is desirable that impervious durability is good.
The outer diameter of the external cambered plate 2 is Ф 1.6m, and wherein 10 outer diameter of nuclear structure column is Ф 0.97m, in core
Structural column 10 is to the foam concrete for having 40mm thickness between built-in cambered plate 8, as isolation damper layer.
The minor-diameter steel-tube 42 is the Q345R steel of internal diameter Ф 100mm thickness 5mm, and anti-extrusion closely knit small steel pipe 7 is interior
The Q345R steel of diameter Ф 100mm thickness 9mm, 41 outer diameter of steel pipe are minor-diameter steel-tube 42 or anti-extrusion closely knit 7 internal diameter of small steel pipe
2.5 times, using the Q345R steel of Ф 250mm thickness 5mm.
The outer diameter of built-in cambered plate 8 is 4 times of the outer diameter of steel pipe 41, using the hot rolling Q345R steel of Ф 1m thickness 10mm, outside
The internal diameter for setting cambered plate 2 is 1.5 times of 8 outer diameter of built-in cambered plate, using the hot rolling Q345R steel of Ф 1.5m thickness 10mm.
Side seal closes hot rolling Q345R steel of the connecting plate 5 using 3mm thickness；Underseal closing plate 11 uses the hot rolling Q345R of 10mm thickness
Steel.
Foamed aluminium 62 uses the fine aluminium of yield strength 51Mpa to be made, cell size 1mm, relative density 0.6, hole
Rate is 70%, and the foamed aluminium of forming is further processed into the cylinder of Ф 244mm, is then pressed into composite steel tube 6.
Fill sand during sand 3 uses：Grain size is the sandstone of 0.25-0.5mm, and fineness modulus is between 2.3-2.8.
Circular-sectioned pier explosion-and-knock resistant protective device in the utility model is wrapped in outside nuclear structure column 10, circular-sectioned pier
Gap pours foam concrete separation layer 9, foam concrete isolation between explosion-and-knock resistant protective device and nuclear structure column 10
The density rating of layer 9 is in 1000-1200 kg/m3Within, compression strength is between 18Mpa-20Mpa, and thermal coefficient is in 0.2-
Between 0.3w/ (m K).
The circular-sectioned pier arc hollow structure operates according to the following steps in the processing and fabricating of factory：First by external cambered surface
Plate 2 and built-in cambered plate 8 close connecting plate 5 by side seal and weld together, and are then vertically disposed on 11 on underseal closing plate and weld
It connects, the interval of combined steel pipe 4 of three minor-diameter steel-tubes 42 of the composite steel tube 6 of populated foamed aluminium 62 and filling is put into hollow knot
Then structure designated position is added anti-extrusion closely knit small steel pipe 7, it is made to divide with combined steel pipe 4, composite steel tube 6 and external cambered plate 2
It is not tangent；Wherein place the arc hollow knot of two combined steel pipes 4, composite steel tubes 6 and two anti-extrusion closely knit small steel pipes 7
Structure and the arc hollow structure of placement two composite steel tubes, 6, combined steel pipes 4 and two anti-extrusion closely knit small steel pipes 7 are respectively done
Two, interval is placed when combined and spliced.
The circular-sectioned pier explosion-and-knock resistant protective device hangs down after factory process completes after carrying it scene
At straight lifting to core cylinder 10, by four arc hollow structure rings around splicing, and by the column bolt 53 of column bottom sealing steel plate
Whole fix in position, while ensureing that the side seal of two blocks of internal and external cambered surface plates of adjacent contact closes 5 middle part spill mouth docking of junction steel plate,
Then inside filling convex stick 51 is inserted perpendicularly into, and the side seal of two blocks of internal and external cambered surface plates of adjacent contact is closed into connecting plate 5 and is dashed forward
Go out at external cambered plate and be fixedly connected with high-strength bolt 52, finally transport filling sand 3 to scene fills up hollow structure by upper under
Gap section in addition to combined steel pipe 4, composite steel tube 6 and anti-extrusion closely knit small steel pipe 7；Particularly, built-in cambered plate 8 is surround
Pipe design diameter after the completion of splicing still can be more micro- than the diameter of nuclear structure column 10 big, and built-in cambered plate 8, which is surround, have been spliced
Pipe after can finally be used as template cast-in-place foamed concrete separation layer 9.
The plus structural of the utility model explosion-and-knock resistant circular-sectioned pier is not only suitable for bridge and is also applied for Important building class
Like on structural column, wherein circular-sectioned pier height with agent structure depending on.
The above content is the further descriptions done to the utility model in conjunction with specific preferred embodiment, cannot
Assert that specific embodiment of the present utility model is only limitted to this, for the utility model person of an ordinary skill in the technical field
For, under the premise of not departing from the utility model, several simple deduction or replace can also be made, all shall be regarded as belonging to
The utility model determines scope of patent protection by the claims submitted.
Claims (10)
1. a kind of protective device for circular-sectioned pier explosion-and-knock resistant, which is characterized in that including multiple arcs hollow structure, institute
The arc hollow structure stated includes external cambered plate（2）, built-in cambered plate（8）, side seal close connecting plate（5）, underseal closing plate（11）,
The external cambered plate（2）With built-in cambered plate（8）Connecting plate is closed by side seal（5）Vertical connection, underseal closing plate（11）On
It is provided with bolt（53）, wherein bolt（53）Around underseal closing plate（11）Peripheral uniform ring closes connecting plate around arrangement, the side seal
（5）Middle part is provided with inside semi-elliptical recess, convex stick（51）It is arranged in spliced recess, the side seal closes connection
Plate（5）External vertical uniform equipped with High-strength bolt hole（52）, the multiple arcs hollow structure head and the tail are by being arranged in height
Strength bolt hole（52）Interior high-strength bolt is fixed and convex stick（51）Longitudinally connected formation annular；
The hollow space of the arc hollow structure is by multiple combined steel pipes（4）, multiple composite steel tubes（6）With it is multiple anti-extrusion
Closely knit small steel pipe（7）Alternately filling composition, the combined steel pipe（4）By steel pipe（41）Fill multiple minor-diameter steel-tubes（42）Group
At composite steel tube（6）By steel pipe（41）Filled and process aluminium（62）Composition；With filling out in the hollow space of the arc hollow structure
Fill sand（3）Fill combined steel pipe（4）, composite steel tube（6）With anti-extrusion closely knit small steel pipe（7）Gap section in addition.
2. a kind of protective device for circular-sectioned pier explosion-and-knock resistant according to claim 1, which is characterized in that in institute
Matcoveredn is set on the outside of the arc hollow structure stated（1）, the protective layer（1）With underseal closing plate（11）Outer edge is concordant.
3. a kind of protective device for circular-sectioned pier explosion-and-knock resistant according to claim 2, which is characterized in that described
Protective layer（1）It is formed using C20-C30 concrete castings.
4. a kind of protective device for circular-sectioned pier explosion-and-knock resistant according to claim 1, which is characterized in that described
External cambered plate（2）, built-in cambered plate（8）Connecting plate is closed with side seal（5）It is all made of the hot rolling Q345R steel that wall thickness is more than 3mm
Material, underseal closing plate（11）It is more than the hot rolling Q345R steel of 10mm using wall thickness.
5. a kind of protective device for circular-sectioned pier explosion-and-knock resistant according to claim 1, which is characterized in that described
Four arc hollow structures head and the tail by being arranged in High-strength bolt hole（52）Interior high-strength bolt is fixed and convex stick（51）It is vertical
Annular is formed to connection.
6. a kind of protective device for circular-sectioned pier explosion-and-knock resistant according to claim 1, which is characterized in that described
Steel pipe（41）Outer diameter be minor-diameter steel-tube（42）2.5 times of internal diameter, the anti-extrusion closely knit small steel pipe（7）Internal diameter with
Minor-diameter steel-tube（42）Internal diameter it is identical, the built-in cambered plate（8）Outer diameter be steel pipe（41）4 times of outer diameter, it is described outer
Set cambered plate（2）Internal diameter be built-in cambered plate（8）1.5 times of outer diameter.
7. a kind of protective device for circular-sectioned pier explosion-and-knock resistant according to claim 1, which is characterized in that described
Minor-diameter steel-tube（42）Quantity >=3.
8. a kind of protective device for circular-sectioned pier explosion-and-knock resistant according to claim 1, which is characterized in that can be with
Foamed aluminium is substituted with porous polymer materials（62）, the porous polymer materials are hard porous polyurethane.
9. a kind of protective device for circular-sectioned pier explosion-and-knock resistant according to claim 1, which is characterized in that described
Foamed aluminium（62）Use the fine aluminium of yield strength 51-53Mpa to be made, cell size 2-3mm, relative density 0.4-0.5,
Porosity is 68%-78%.
10. a kind of protective device for circular-sectioned pier explosion-and-knock resistant according to claim 1, which is characterized in that institute
The filling sand stated（3）The sand in：Grain size is the sandstone of 0.25-0.5mm, and fineness modulus is between 2.3-2.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721833015.1U CN207700042U (en) | 2017-12-25 | 2017-12-25 | A kind of protective device for circular-sectioned pier explosion-and-knock resistant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721833015.1U CN207700042U (en) | 2017-12-25 | 2017-12-25 | A kind of protective device for circular-sectioned pier explosion-and-knock resistant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207700042U true CN207700042U (en) | 2018-08-07 |
Family
ID=63028227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721833015.1U Expired - Fee Related CN207700042U (en) | 2017-12-25 | 2017-12-25 | A kind of protective device for circular-sectioned pier explosion-and-knock resistant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207700042U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235330A (en) * | 2018-09-21 | 2019-01-18 | 国家电网有限公司 | A kind of convenient Anti-bumping protection pier |
| CN110905361A (en) * | 2019-11-08 | 2020-03-24 | 清华大学 | One-way open-type protective door based on periodic material |
| CN112647408A (en) * | 2020-12-26 | 2021-04-13 | 北京工业大学 | Modularized flexible pier anti-collision device |
| CN115092311A (en) * | 2022-07-12 | 2022-09-23 | 哈尔滨工程大学 | Protective structure for resisting explosion impact under water |
-
2017
- 2017-12-25 CN CN201721833015.1U patent/CN207700042U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235330A (en) * | 2018-09-21 | 2019-01-18 | 国家电网有限公司 | A kind of convenient Anti-bumping protection pier |
| CN110905361A (en) * | 2019-11-08 | 2020-03-24 | 清华大学 | One-way open-type protective door based on periodic material |
| CN110905361B (en) * | 2019-11-08 | 2021-01-12 | 清华大学 | One-way open-type protective door based on periodic material |
| CN112647408A (en) * | 2020-12-26 | 2021-04-13 | 北京工业大学 | Modularized flexible pier anti-collision device |
| CN112647408B (en) * | 2020-12-26 | 2022-07-22 | 北京工业大学 | Modularized flexible pier anti-collision device |
| CN115092311A (en) * | 2022-07-12 | 2022-09-23 | 哈尔滨工程大学 | Protective structure for resisting explosion impact under water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108004912A (en) | Protective device for circular-sectioned pier explosion-and-knock resistant | |
| CN207700042U (en) | A kind of protective device for circular-sectioned pier explosion-and-knock resistant | |
| CN214303850U (en) | Buffer layer structure and supporting construction of underground works country rock deformation control | |
| CN109779370B (en) | Underwater anti-explosion composite protection structure based on hollow glass beads and construction method thereof | |
| CN103306531A (en) | Reticulated shell-annular truss frame-irregular-shaped combination column combined support spherical tank system capable of slightly moving | |
| CN108589969B (en) | Combined assembly type shear wall with vertical ECC energy consumption belt and manufacturing method thereof | |
| CN111472807A (en) | Tunnel or tunnel surrounding rock shielding and protecting structure and method | |
| CN114108860A (en) | Damping unit cell with phononic crystal low-frequency filtering characteristic and preparation method thereof | |
| CN106702889B (en) | A kind of bridge pier column Cross section Design of explosion-proof percussion | |
| CN107587624B (en) | A kind of assembled antiknock protection plate structure and preparation method thereof | |
| CN201411797Y (en) | Miniature energy-dissipation filling device for multi-ribbed composite wall body | |
| CN108999540B (en) | A kind of novel antiknock protective door door leaf structure and its manufacturing method | |
| CN208815777U (en) | A kind of steel core concrete column | |
| CN207553345U (en) | Can realize high-rise building shock insulation structure | |
| CN206438388U (en) | A kind of bridge pier column section of explosion-proof percussion | |
| CN202809894U (en) | Sandwich heat insulation wall body | |
| CN104847153A (en) | Self-reset swinging inner barrel shock absorption water tank | |
| CN205348439U (en) | Fire prevention antiknock board | |
| CN108612256A (en) | A kind of novel light assembled compound external wall panel | |
| CN114319643A (en) | Green type external thermal insulation wall structure | |
| LU502696B1 (en) | Roadway or tunnel surrounding rock shielding protection structure and method | |
| CN211200784U (en) | Split type building earthquake-resistant structure of civil engineering | |
| CN108044766A (en) | A kind of protective shelter and preparation method thereof | |
| CN111535838A (en) | Novel composite UHPC (ultra high performance polycarbonate) bullet shielding layer capable of resisting repeated striking for multiple times | |
| CN208430696U (en) | Steam-pressing aero-concrete wallboard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180807 Termination date: 20201225 |