CN210421406U - non-Newtonian liquid filled shock-resistant node and shock-resistant building - Google Patents

non-Newtonian liquid filled shock-resistant node and shock-resistant building Download PDF

Info

Publication number
CN210421406U
CN210421406U CN201920918584.9U CN201920918584U CN210421406U CN 210421406 U CN210421406 U CN 210421406U CN 201920918584 U CN201920918584 U CN 201920918584U CN 210421406 U CN210421406 U CN 210421406U
Authority
CN
China
Prior art keywords
node
box body
impact
newtonian liquid
filled
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.)
Active
Application number
CN201920918584.9U
Other languages
Chinese (zh)
Inventor
张戊晨
孙轶良
荣彬
张雯
吴海亮
王亚敏
王雷
杨子恒
刘钟
李腾
李明富
邢琳
程楠
寇文彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin University
State Grid Corp of China SGCC
Economic and Technological Research Institute of State Grid Hebei Electric Power Co Ltd
Original Assignee
Tianjin University
State Grid Corp of China SGCC
Economic and Technological Research Institute of State Grid Hebei Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin University, State Grid Corp of China SGCC, Economic and Technological Research Institute of State Grid Hebei Electric Power Co Ltd filed Critical Tianjin University
Priority to CN201920918584.9U priority Critical patent/CN210421406U/en
Application granted granted Critical
Publication of CN210421406U publication Critical patent/CN210421406U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The utility model belongs to the technical field of building engineering, a non-Newton liquid filled anti-impact node is provided, including connecting the box body, connect the non-Newton liquid of box body internal packing, the outside is used for being connected with building structure component and forms anti-impact node, and the structure is very simple, both can make prefabricated component, can the field installation again, and installation use and later maintenance are all very convenient, and connecting box body and non-Newton liquid simultaneously and all obtaining relatively easily, the cost is lower and need not the maintenance, is favorable to reducing the construction cost, and has also utilized the characteristics of non-Newton liquid "shear thickening", can show the antidetonation shock resistance that promotes the rigidity node; the utility model provides a building shocks resistance, including the shock resistance node that aforementioned non-Newton liquid was filled, can guarantee the anti-seismic performance while, easy to assemble and later maintenance effectively reduce the construction cost.

Description

non-Newtonian liquid filled shock-resistant node and shock-resistant building
Technical Field
The utility model belongs to the technical field of building engineering, more specifically say, relate to a non-Newton liquid filled node and building that shocks resistance.
Background
Structural nodes (Joints) are one of the major elements of a building structure system. Generally, the material is limited to the maximum size for production or transportation, so the member connecting two or more fixed bodies is called a structural node. Meanwhile, because the node type selectivity is high, sometimes, special structure nodes are also designed deliberately in order to increase the structure toughness or reduce the internal force of the structure.
The structural nodes in the traditional buildings mainly comprise rigid nodes, but with the development of high-rise buildings and assembly buildings in recent years, the rigid nodes are easy to deform due to stress concentration, so that the requirement of earthquake resistance is difficult to meet, and in order to ensure the earthquake resistance performance of the buildings, the research and the application of earthquake resistant nodes are increased.
The anti-seismic node is characterized in that buffer assemblies such as steel strands and rubber pads are additionally arranged on the basis of the original node, the original rigid connection is changed into a semi-rigid connection node form, after specific requirements on the aspects of bearing capacity and the like in actual working conditions are considered, assemblies with the effects of preventing displacement instability and the like are increased frequently for enhancing the safety and the reliability of the anti-seismic node, the structure of the node is finally complicated, the anti-seismic node is not convenient to install and maintain, the construction cost is increased, once one or some parts are aged and damaged, the whole node can be caused to fail, and the safety of a building is greatly reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a non-Newton liquid filled's node and building of shocking resistance to rigidity node is difficult to satisfy the antidetonation needs but the node of shocking resistance has the technical problem of the shortcoming in the aspect of the structure complicacy again, installation maintenance inconvenience and construction cost height in the current building that exists among the solution prior art.
In order to achieve the above object, the utility model adopts the following technical scheme: the non-Newtonian liquid filled anti-impact node comprises a connection box body, wherein the interior of the connection box body is filled with non-Newtonian liquid, and the exterior of the connection box body is used for being connected with a building structural member to form the anti-impact node.
Furthermore, the impact-resistant node filled with the non-Newtonian liquid further comprises an impermeable layer, and the impermeable layer is arranged in the connection box body and used for preventing the non-Newtonian liquid from seeping out of the connection box body.
Furthermore, in the impact-resistant node filled with the non-newtonian liquid, the connection box body is of a cuboid structure, the connection surface for connecting with the building structural member is arranged outside the connection box body, the connection box body is a metal member, and the building structural member comprises a beam or a column made of profile steel.
Further, in the non-newtonian liquid filled anti-impact node, the connection box body includes a pipe barrel and two partition plates, the two partition plates are respectively connected with the upper bottom and the lower bottom of the pipe barrel in a sealing manner, and the partition plates are used for being connected with the building structural member.
Further, in the above-mentioned non-newtonian liquid-filled impact-resistant node, the edge of the partition protrudes from the outer circumference of the tube.
Furthermore, in the impact-resistant node filled with the non-newtonian liquid, the impact-resistant node further includes a building structural member, the building structural member includes an i-beam and a steel pipe column, an upper wing plate and a lower wing plate of the i-beam are respectively connected with edges of the two partition plates, a web of the i-beam is connected with the pipe barrel, the upper wing plate and the lower wing plate on the portion, connected with the partition plates, of the i-beam are both separated from the web, and the steel pipe column is connected with an outer side face of the partition plate.
Furthermore, in the impact-resistant node filled with the non-newtonian liquid, the impact-resistant node further includes a transfer link rod, the transfer link rod is disposed in the connection box body, and at least one end of the transfer link rod is fixedly connected with the inner wall of the connection box body.
Furthermore, in the impact-resistant node filled with the non-newtonian liquid, the transmission link is provided with a plurality of annular protrusions arranged at intervals.
Furthermore, in the impact-resistant node filled with the non-newtonian liquid, the connection box body is provided with a filling hole for filling the non-newtonian liquid into the connection box body, the filling hole is a screw hole, and the screw hole is provided with a hole sealing bolt.
Further, in the impact-resistant node filled with the non-Newtonian liquid, a nut of the hole sealing bolt is welded with the connecting box body in a sealing mode.
Another object of the utility model is to: an impact resistant building is provided comprising the aforementioned non-newtonian liquid-filled impact resistant node.
The utility model provides a non-Newtonian liquid filled's shock resistance node's beneficial effect lies in: compared with the prior art, the utility model discloses a set up the connection box body of filling non-Newton liquid as the rigidity node, the structure is very simple, both can make prefabricated component, can the field installation again, and it is all very convenient to install and use and later maintenance, connects box body and non-Newton liquid simultaneously and all acquires relatively easily, and the cost is lower and need not the maintenance, is favorable to reducing the construction cost, but also has utilized the characteristics of non-Newton liquid "shear thickening", can show the antidetonation shock resistance who promotes the rigidity node. Under the action of an earthquake with a medium-small earthquake magnitude, the non-Newtonian liquid filled in the connecting box body is subjected to the action of impact force, quickly becomes hard and has a larger volume, which is equivalent to that the node is filled with a solid with higher strength than concrete, so that the strength and the shear resistance of the node are improved by multiple times instantly; the non-Newtonian liquid is more fully contacted with the side wall of the connecting box body along with the increase of the volume of the non-Newtonian liquid, so that the stress of the whole node is more uniform, the condition that the stress is concentrated at a certain position is avoided, and the ultimate bearing capacity of the partition plate through node under the action of medium and small earthquakes can be effectively improved; meanwhile, the non-Newtonian liquid has no problem of crushing, so that the problem of repairing after earthquake does not exist. After the earthquake, the non-Newtonian liquid is restored to the initial state, the mechanical property of the non-Newtonian liquid is the same as that before the earthquake, and the non-Newtonian liquid is not required to be replaced by new non-Newtonian liquid. And when the earthquake magnitude that takes place is higher, when breaking through the shearing limit of non-Newton liquid, non-Newton liquid resumes the state again, can not reduce the ductility of node, and the deformability of whole node increases this moment, can avoid the rigidity destruction of node, guarantees not to take place in the node position to destroy, can satisfy the effect design requirement of "the big shake does not fall" in the antidetonation design specification.
The utility model provides a building shocks resistance's beneficial effect lies in: compared with the prior art, the utility model discloses an adopt foretell shock resistance node, can be when guaranteeing anti-seismic performance, easy to assemble and later maintenance effectively reduce the construction cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a non-newtonian liquid filled impact-resistant node according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a non-newtonian liquid filled anti-impact node according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a non-newtonian liquid filled anti-impact node according to another embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
10-connecting the box body;
11-a tube; 12-a separator; 13-a non-newtonian liquid filling; 14-hole sealing bolts;
20-barrier layer;
30-a transfer link; 31-an annular projection;
41-steel i-beams; 42-steel pipe column.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Now the utility model provides a non-Newtonian liquid filled's anti-impact node and building that shocks resistance explains.
Referring to fig. 1 and 2, the non-newtonian liquid filled impact resistant node includes a connection box 10, the connection box 10 is filled with non-newtonian liquid, and the exterior is used to connect with a building structural member to form the impact resistant node.
Non-newtonian fluids, also known as shear thickening fluids, refer to fluids that do not satisfy the experimental laws of newtonian viscosity, i.e., fluids whose shear stress and shear strain rate are not linear. The non-Newtonian fluid has the characteristic of shear thickening, namely when the non-Newtonian fluid is stressed suddenly, the self structure of the non-Newtonian fluid is changed, the viscosity and the hardness are increased, the shear force is increased disproportionately, and the expansion of the volume of the non-Newtonian fluid is also accompanied. The utility model discloses well use viscosity better along with the shear thickening fluid effect of shear rate grow.
The utility model provides a non-Newton liquid filled node of shocking resistance, compared with the prior art, through the connection box body 10 that sets up non-Newton liquid of packing as the rigidity node, the structure is very simple, prefabricated component both can make, can the field installation again, it is all very convenient to install and use and later maintenance, connect box body 10 simultaneously and non-Newton liquid all acquirees more easily, the cost is lower and need not the maintenance, be favorable to reducing the construction cost, and the characteristics of non-Newton liquid "shear thickening" have still been utilized, can show the antidetonation shock resistance who promotes the rigidity node.
Under the action of an earthquake with a medium-small earthquake magnitude, the non-Newtonian liquid filled in the connecting box body 10 is subjected to the action of impact force, quickly hardens and has a larger volume, namely, the node is filled with a solid with higher strength than concrete, so that the strength and the shear resistance of the node are improved by multiple times instantly; as the volume of the non-Newtonian liquid is increased, the non-Newtonian liquid is more fully contacted with the side wall of the connecting box body 10, so that the stress of the whole node is more uniform, the condition that the stress is concentrated at a certain position is avoided, and the ultimate bearing capacity of the partition plate through node under the action of medium and small earthquakes can be effectively improved; meanwhile, the non-Newtonian liquid has no problem of crushing, so that the problem of repairing after earthquake does not exist. After the earthquake, the non-Newtonian liquid is restored to the initial state, the mechanical property of the non-Newtonian liquid is the same as that before the earthquake, and the non-Newtonian liquid is not required to be replaced by new non-Newtonian liquid.
And when the earthquake magnitude that takes place is higher, when breaking through the shearing limit of non-Newton liquid, non-Newton liquid resumes the state again, can not reduce the ductility of node, and the deformability of whole node increases this moment, can avoid the rigidity destruction of node, guarantees not to take place in the node position to destroy, can satisfy the effect design requirement of "the big shake does not fall" in the antidetonation design specification.
Referring to fig. 2, as a specific embodiment of the non-newtonian liquid filled anti-impact node according to the present invention, the anti-impact node further includes an anti-seepage layer 20, and the anti-seepage layer 20 is disposed in the connection box 10 for preventing the non-newtonian liquid from seeping out of the connection box 10.
Referring to fig. 1 to 3, as a specific embodiment of the non-newton liquid filled anti-impact node according to the present invention, the connection box 10 is a rectangular parallelepiped structure, the exterior of the connection box is provided with a connection surface for connecting with a building structural member, the connection box 10 is a metal member, and the building structural member includes a beam or a column made of steel.
Referring to fig. 1 to 3 together, as one embodiment of the non-newtonian liquid filled anti-impact node of the present invention, the connecting box 10 includes a pipe 11 and two partition plates 12, the two partition plates 12 are respectively connected to the upper bottom and the lower bottom of the pipe 11 in a sealing manner, and the partition plates 12 are used for connecting with the building structural member.
Referring to fig. 1 to 3 together, as one embodiment of the non-newtonian fluid filled anti-impact node of the present invention, the edge of the partition 12 protrudes from the outer circumference of the tube 11 to facilitate the connection of the building structural member and the transmission of stress. The anti-impact node further comprises a building structure component, the building structure component comprises an I-shaped steel beam 41 and a steel pipe column 42, an upper wing plate and a lower wing plate of the I-shaped steel beam are respectively connected with the edges of the two partition plates 12, a web plate of the I-shaped steel beam 41 is connected with the pipe barrel 11, the upper wing plate and the lower wing plate, which are positioned at the positions connected with the partition plates 12, of the I-shaped steel beam 41 are separated from the web plate, and the steel pipe column 42 is connected with the outer side faces of the partition plates 12.
The partition plate through joint is definite in stress, simple in structure and high in factory prefabrication rate, can solve the problems that the inner partition plate joint requires a large column section, large repeated welding stress and a convex angle of an outer partition plate joint, and is suitable for connection of a cold-formed steel pipe and a steel beam joint.
Referring to fig. 3, as a specific embodiment of the impact-resistant node filled with non-newtonian liquid according to the present invention, the impact-resistant node further includes a transmission link 30, the transmission link 30 is disposed in the connection box 10, and at least one end of the transmission link is fixedly connected to the inner wall of the connection box 10.
When the connection box body 10 is large in size, the transmission connecting rod 30 can help to transmit the impact force on the connection box body 10 to the interior of the non-Newtonian liquid, and the anti-seismic performance is further improved.
The transmission connecting rod 30 is provided with a plurality of annular bulges 31 arranged at intervals, so that the action area of the transmission connecting rod 30 and non-Newtonian liquid can be increased, and the transmission effect of impact force can be enhanced.
Referring to fig. 3, as a specific embodiment of the impact-resistant node filled with non-newtonian liquid according to the present invention, the connecting box 10 is provided with a filling hole for filling non-newtonian liquid into the connecting box 10, so as to facilitate production and manufacturing. The filling hole is a screw hole, a hole sealing bolt 14 is arranged on the screw hole, and a nut of the hole sealing bolt 14 is welded with the connecting box body 10 in a sealing mode.
Another object of the utility model is to: an impact resistant building is provided comprising the aforementioned non-newtonian liquid-filled impact resistant node.
The utility model provides a building shocks resistance's beneficial effect lies in: compared with the prior art, the utility model discloses an adopt foretell shock resistance node, can be when guaranteeing anti-seismic performance, easy to assemble and later maintenance effectively reduce the construction cost.
In addition, in order to facilitate understanding, the utility model provides a method for constructing shock-resistant node, which comprises the following steps:
connecting the lower partition plate with the lower column member;
placing the pipe barrel 11 on the upper part of the lower partition plate, and hermetically connecting the lower opening of the pipe barrel 11 with the lower partition plate;
the lower clapboard and the interior of the pipe barrel 11 are processed with anti-seepage treatment;
filling the tube 11 with a non-newtonian liquid;
placing an upper partition plate on the upper part of the pipe barrel 11, and hermetically connecting the upper partition plate with the upper opening of the pipe barrel 11;
other building structural members are connected to the lower partition, the pipe barrel 11 and the upper partition.
The utility model provides a method for constructing shock-resistant node's beneficial effect lies in: compared with the prior art, the anti-impact joint can be conveniently produced and installed, and the construction cost is reduced.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (11)

1. A non-newtonian liquid-filled impact-resistant node, comprising:
and the connecting box body is filled with non-Newtonian liquid, and the outer part of the connecting box body is used for being connected with the building structural member to form an anti-impact node.
2. The non-Newtonian liquid-filled impact-resistant node of claim 1, further comprising:
and the anti-seepage layer is arranged in the connection box body and used for preventing non-Newtonian liquid from seeping out of the connection box body.
3. A non-newtonian liquid-filled impact-resistant node as recited in claim 1, wherein: the connection box body is a cuboid structure, the outside is provided with and is used for with the connection face that building structure component connects, the connection box body is metal component, building structure component includes the roof beam or the post that shaped steel made.
4. A non-newtonian liquid-filled impact-resistant node as defined in claim 1 or 3, wherein: the connecting box body comprises a pipe barrel and two clapboards, the two clapboards are respectively connected with the upper bottom and the lower bottom of the pipe barrel in a sealing way, and the clapboards are used for being connected with building structural members.
5. A non-Newtonian liquid-filled impact-resistant node according to claim 4, wherein: the edge of the baffle plate protrudes out of the periphery of the pipe barrel.
6. A non-Newtonian liquid-filled impact-resistant node as recited in claim 5, wherein: the anti-impact node further comprises a building structure component, the building structure component comprises an I-shaped steel beam and a steel pipe column, an upper wing plate and a lower wing plate of the I-shaped steel beam are respectively connected with the edges of the two partition plates, a web plate of the I-shaped steel beam is connected with the pipe barrel, the upper wing plate and the lower wing plate, which are positioned at the position connected with the partition plates, on the I-shaped steel beam are separated from the web plate, and the steel pipe column is connected with the outer side faces of the partition plates.
7. A non-newtonian liquid-filled impact-resistant node as recited in claim 1, wherein: the impact-resistant node further comprises:
the transmission connecting rod is arranged in the connecting box body, and at least one end of the transmission connecting rod is fixedly connected with the inner wall of the connecting box body.
8. A non-newtonian liquid-filled impact-resistant node as recited in claim 7, wherein: the transmission connecting rod is provided with a plurality of annular bulges arranged at intervals.
9. A non-newtonian liquid-filled impact-resistant node as recited in claim 1, wherein: the connecting box body is provided with a filling hole for filling non-Newtonian liquid into the connecting box body, the filling hole is a screw hole, and the screw hole is provided with a hole sealing bolt.
10. A non-newtonian liquid-filled impact-resistant node as recited in claim 9, wherein: and the nut of the hole sealing bolt is hermetically welded with the connecting box body.
11. An impact resistant building characterized by: an impact-resistant node comprising a non-Newtonian liquid-filled according to any one of claims 1-10.
CN201920918584.9U 2019-06-18 2019-06-18 non-Newtonian liquid filled shock-resistant node and shock-resistant building Active CN210421406U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920918584.9U CN210421406U (en) 2019-06-18 2019-06-18 non-Newtonian liquid filled shock-resistant node and shock-resistant building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920918584.9U CN210421406U (en) 2019-06-18 2019-06-18 non-Newtonian liquid filled shock-resistant node and shock-resistant building

Publications (1)

Publication Number Publication Date
CN210421406U true CN210421406U (en) 2020-04-28

Family

ID=70375800

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920918584.9U Active CN210421406U (en) 2019-06-18 2019-06-18 non-Newtonian liquid filled shock-resistant node and shock-resistant building

Country Status (1)

Country Link
CN (1) CN210421406U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110145029A (en) * 2019-06-18 2019-08-20 国网河北省电力有限公司经济技术研究院 Shock resistance node, shock resistance building and the construction method of non-newtonian liquid filling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110145029A (en) * 2019-06-18 2019-08-20 国网河北省电力有限公司经济技术研究院 Shock resistance node, shock resistance building and the construction method of non-newtonian liquid filling

Similar Documents

Publication Publication Date Title
CN106400954B (en) A kind of girder steel-Frame Joints of Concrete-Filled Steel Tube based on Damage Coutrol theory
US7188452B2 (en) Sleeved bracing useful in the construction of earthquake resistant structures
CN107675800B (en) Self-resetting deformation coordination floor slab node structure
CN207453185U (en) A kind of prefabricated assembly type shock absorption wall
CN203145194U (en) Internal diaphragm joint of variable flange steel I-beam and square concrete filled steel tubular column
CN105780960A (en) Fully-prefabricated assembled concrete column-concrete beam buckling-restrained energy-consuming joint
CN107489212B (en) Bearing-force-free shear-resistant buckling steel plate shear wall
CN108532794B (en) Assembled steel tube concrete diagonal bracing steel plate shear wall
CN112324459B (en) Yielding lining structure suitable for crossing fault and soft rock large-deformation section
CN205637214U (en) Prefabricated assembled concrete column - concrete beam prevents bucking power consumption node entirely
CN210421406U (en) non-Newtonian liquid filled shock-resistant node and shock-resistant building
CN209854913U (en) Replaceable energy-consumption connecting node for assembled rectangular steel pipe column and H-shaped steel beam
CN107313529B (en) Assembled building wall
CN213014779U (en) Metal and composite material laminated damper
CN107386437B (en) Beam column node with steel structure capable of self-resetting
CN203403558U (en) Shear wall
CN112663836A (en) Assembled profiled steel sheet recycled concrete combined shear wall and construction method
CN105735529A (en) Easily assembled cross-brace type steel frame steel plate shear wall structure
CN216552704U (en) Local concrete steel pipe column with branch pipes
CN110241925A (en) Capability of diaphragm-through style beam-column joint and building
CN107327029B (en) Steel pipe concrete column-girder steel assembled space node
CN217630662U (en) External and internal pressure type steel plate confined recycled concrete shear wall with frame
CN203034879U (en) Casing refuge bin structure of existing masonry structure
CN110145029A (en) Shock resistance node, shock resistance building and the construction method of non-newtonian liquid filling
CN109594651A (en) A kind of steel pipe fashioned iron regeneration concrete column-PEC steel girder frame and assembly method

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant