CN209589416U - A kind of nearly cuboid building Surface Wind Load simulation test device - Google Patents
A kind of nearly cuboid building Surface Wind Load simulation test device Download PDFInfo
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- CN209589416U CN209589416U CN201920046403.8U CN201920046403U CN209589416U CN 209589416 U CN209589416 U CN 209589416U CN 201920046403 U CN201920046403 U CN 201920046403U CN 209589416 U CN209589416 U CN 209589416U
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- wind load
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Abstract
The utility model discloses a kind of nearly cuboids to build Surface Wind Load simulation test device, buildings model including energization solenoid and the nearly cuboid being arranged in energization solenoid, the front side surface and rear side surface of buildings model are provided with conducting wire group, every group of conducting wire group includes the more parallel conducting wires being uniformly arranged vertically, is connect after more parallel conducting wires are in parallel with the first DC power supply;Energization solenoid inner horizontal is provided with insulated platform, buildings model is arranged on insulated platform, the winding wire wound on energization solenoid is connect with the second DC power supply, and magnetic induction line direction is vertical with the direction of more parallel conducting wires that buildings model surface is arranged inside energization solenoid.The utility model can rapidly and accurately measure the limit wind load that buildings model can bear, while will not damage to experimental rig when buildings model is destroyed.
Description
Technical field
The utility model relates to a kind of nearly cuboid building Surface Wind Load simulation test device more particularly to a kind of utilizations
The experimental rig of nearly cuboid building Surface Wind Load is simulated to the Ampere force of the generation of electrified wire in magnetic field.
Background technique
For skyscraper and super high-rise building, the wind load being subject to is more significant.Multi-pass crosses wind tunnel test at this stage
Response with Structure Calculation with clear structure under wind action, including displacement and internal force etc..But for wind at this stage
Hole test, the entirety and surface part wind load, aerodynamic model test that rigid model test can only measure structure also can only obtain
The displacement of structure, can not destructive process of the recurring structures under wind action.It is well known that earthquake load is and wind load
Corresponding another kind of power effect, and shaketalle test then reproduce destructive process of the model configuration under geological process.But
In wind tunnel test, if structural model destroys fragmentation, fragment will drift in wind-tunnel, and can be involved in blower, cause wind
Machine damage.Therefore, wind tunnel test can not carry out destructive testing, therefore can not destruction of the recurring structures under wind action
Journey.
Utility model content
The purpose of the utility model is to provide a kind of nearly cuboids to build Surface Wind Load simulation test device, can be quick
The limit wind load that buildings model can bear accurately is measured, while test will not be filled when buildings model is destroyed
It sets and damages.
The utility model adopts the following technical solutions:
A kind of nearly cuboid building Surface Wind Load simulation test device, including energization solenoid and setting are in energization helical
The buildings model of nearly cuboid in pipe, the front side surface and rear side surface of buildings model are provided with conducting wire group, every group of conducting wire
Group includes the more parallel conducting wires being uniformly arranged vertically, is connect after more parallel conducting wires are in parallel with the first DC power supply;It is powered
Solenoid inner horizontal is provided with insulated platform, and buildings model is arranged on insulated platform, the coil wound on energization solenoid
Conducting wire is connect with the second DC power supply, inside energization solenoid magnetic induction line direction with buildings model surface is arranged more in parallel lead
The direction of line is vertical.
The front side surface and rear side surface of buildings model are respectively provided with two groups of conducting wire groups, and every group of conducting wire group includes more vertical
The parallel conducting wire being uniformly arranged, after more parallel conducting wires in every group of conducting wire group are in parallel respectively with corresponding variable resistance and corresponding
The connection of the first DC power supply, more parallel conducting wires in two groups of conducting wire groups are mutually parallel and are evenly distributed on buildings model
On front side surface and rear side surface, variable resistance and the first DC power supply are respectively positioned on outside energization solenoid.
Every parallel conducting wire up and down is vertically arranged on buildings model surface, the top of every parallel conducting wire with building
Model surface fits closely, and the lower part of at least one parallel conducting wire in more parallel conducting wires is not bonded with building surface, uses
It is positioned horizontally in above and below more parallel conducting wires, leads to respectively in the connecting wire for connecting more parallel conducting wires and DC power supply
Inside electrical solenoid magnetic induction line direction and buildings model surface arranged for connecting multiple groups parallel conducting wire and DC power supply
The setting direction of connecting wire is parallel.
Energization solenoid is arranged on the support, and energization solenoid length is more than or equal to 2.5 times of energization solenoid internal diameter, branch
Seat upper surface opens up arc groove compatible with energization solenoid shape, and energization solenoid is arranged in arc groove.
Support is insulated leg.
Buildings model is arranged on insulated platform, and is fixed by the fixed device of buildings model with insulated platform.
More parallel conducting wires are by way of gluing and/or the horizontal hoop by being laterally arranged uniformly is fixed on building mould
Type surface.
It further include the laser displacement gauge for measuring miniature deformation caused by buildings model end.
The utility model uses the power in solenoid magnetic field to being distributed in peace caused by the electrified wire of buildings model surface
Training power carrys out simulated wind load, and the Ampere force as suffered by buildings model is evenly load, can the practical building institute of accurate simulation
The wind-force being subject to rapidly and accurately measures the limit wind load that buildings model can bear, while being destroyed in buildings model
When traditional flow tunnel testing device will not be damaged.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wind load simulation test device in the utility model;
Fig. 2 is the circuit diagram of two groups of conducting wire groups set by buildings model front side surface in the utility model;
Fig. 3 is that energization solenoid obtains rectangular projection after transversely and horizontally placing upright projection from top to bottom in the utility model
Schematic diagram.
Specific embodiment
The utility model is made with detailed description below in conjunction with drawings and examples:
As shown in Figure 1 to Figure 3, nearly cuboid described in the utility model builds Surface Wind Load simulation test device, packet
The buildings model 2 of nearly cuboid for including energization solenoid 1 and being arranged in energization solenoid 1, the front side surface of buildings model 2 and
Rear side surface is provided with conducting wire group, and every group of conducting wire group includes the more parallel conducting wires being uniformly arranged vertically 5, and more parallel connections are led
It is connect after 5 parallel connection of line with the first DC power supply 7;1 inner horizontal of energization solenoid is provided with insulated platform 4, and buildings model 2 is arranged
On insulated platform 4, the winding wire wound on energization solenoid 1 is connect with the second DC power supply, is wound on energization solenoid 1
Winding wire connect with the second DC power supply so as to form magnetic field inside energization solenoid 1, and 1 inside magnetic strength of energization solenoid
Line direction is vertical with the direction of more parallel conducting wires 5 that 2 surface of buildings model is arranged, to generate on more parallel conducting wires 5
In the horizontal direction perpendicular to the Ampere force of building surface, since wind load is also in the horizontal direction perpendicular to building table
Face, thus the wind load of this Ampere force analog building surface.To guarantee the uniform of 1 internal magnetic field of energization solenoid, it is powered
1 length of solenoid is more than or equal to 2.5 times of 1 internal diameter of energization solenoid.
In the present embodiment, buildings model is made of mortar, and buildings model is internally provided with iron wire, i.e., is replaced using mortar
Concrete in building, iron wire replace the reinforcing bar in building, and buildings model is reasonably arranged according to code of building design.It builds
It builds model to make in proportion, for the skyscraper of conventional 100m height, be made of the ratio of 1:50.As shown in Fig. 2, considering
The safety used to DC power supply preferably can be respectively provided with two groups of conducting wires in the front side surface and rear side surface of buildings model 2
Group, every group of conducting wire group include the more parallel conducting wires being uniformly arranged vertically 5, and more parallel conducting wires 5 in every group of conducting wire group are simultaneously
It is connected respectively with corresponding variable resistance and corresponding DC power supply after connection, i.e., first direct current is used alone in one group of conducting wire group
Power supply 7, more parallel conducting wires 5 in two groups of conducting wire groups it is mutually parallel and be evenly distributed on the front side surface of buildings model 2 and
On rear side surface.Variable resistance and the first DC power supply 7 are respectively positioned on outside energization solenoid 1, prevent from causing shadow to test data
It rings.
Every parallel conducting wire 5 up and down is vertically arranged on 2 surface of buildings model, the top of every parallel conducting wire 5 with
2 surface of buildings model fits closely, one in more parallel conducting wires 5 or mostly with the lower part of parallel conducting wire 5 not with building table
Face paste is closed, and the connecting wire for connecting more parallel conducting wires 5 and DC power supply is positioned horizontally in more parallel conducting wires 5 respectively
What side and lower section, 1 inside magnetic induction line direction of energization solenoid and 2 surface of buildings model were arranged is used to connect multiple groups parallel conducting wire
5 is parallel with the setting direction of the connecting wire of DC power supply, makes it not by the influence of Ampere force, the standard of guarantee test data
Really.
In the present embodiment, due to wind load on depth of building direction often uneven distribution, if every parallel conducting wire 5
Be bonded with buildings model surface, then can not wind load suffered by accurate simulation building, cause test result not accurate enough.
For further accurate simulation and the accuracy of guarantee test result, in the utility model, the variation according to wind load along height is advised
Rule, the top of every parallel conducting wire 5 is fitted closely with 2 surface of buildings model, one in more parallel conducting wires 5 or mostly with
The lower part of parallel conducting wire 5 is not bonded with building surface, that is, is distributed in the part in parallel conducting wire 5 of buildings model bottom end certain high
It is bent up in degree range, the lower part for the parallel conducting wire 5 that this part is not bonded with building surface at this time does not generate power to buildings model
Effect, thus situation of change of the accurate simulation wind load along height.
The Ampere force direction model as suffered by the parallel conducting wire 5 being arranged on buildings model front side surface, so Ampere force begins
It acts in buildings model eventually, and Ampere force suffered by the parallel conducting wire 5 of buildings model rear side surface leaves buildings model, therefore
This Ampere force can make parallel conducting wire 5 deviate model and can not make buildings model stress, to make set by buildings model rear side surface
The Ampere force of parallel conducting wire 5 be likewise passed in buildings model, more parallel conducting wires 5 are by way of gluing and/or pass through
The horizontal hoop being laterally arranged uniformly is fixed on 2 surface of buildings model, and plastic wire band can be used in horizontal hoop.
Energization solenoid 1 is arranged on support 3, and 3 upper surface of support opens up arc compatible with 1 shape of energization solenoid
Groove, energization solenoid 1 are arranged in arc groove, and insulated leg 3 can be used in support 3, such as utilize the insulation of concrete masonry units
Support 3.Buildings model 2 is arranged on insulated platform 4, and fixed by the fixed device of buildings model 2 and insulated platform 4.This reality
It applies in example, copper screw can be used in the fixed device of insulated platform 4.It is provided with transmission line through hole in the middle part of the lower end of buildings model 2,
Pass through convenient for transmission signal line.
It further include the laser displacement gauge for measuring miniature deformation caused by 2 end of buildings model in the utility model.
Laser displacement gauge can be after testing equipment unlatching, and miniature deformation caused by 2 end of buildings model of measurement is to calculate
2 stress size of buildings model provides guarantee for the check of follow-up test data.
Nearly cuboid described in the utility model builds Surface Wind Load simulation experiment method, comprising the following steps:
A: wire arrangements are carried out in two test surfaces of the buildings model 2 of nearly cuboid.
Defining buildings model 2 is tool there are four the nearly cuboid of side, and front vertical bears the buildings model 2 of wind load
Front side surface is the first test surfaces, and the rear side surface of the buildings model 2 parallel with the first test surfaces is the second test surfaces.Exist respectively
Conducting wire group is set on the first test surfaces and the second test surfaces, and every group of conducting wire group includes the more parallel conducting wires being uniformly arranged vertically
5, it is connect after more 5 parallel connections of parallel conducting wire with the first DC power supply 7.
In the present embodiment, it is contemplated that the safety that DC power supply uses, preferably can buildings model 2 front side surface and
Rear side surface is respectively provided with two groups of conducting wire groups, and every group of conducting wire group includes about more and be uniformly arranged on 2 surface of buildings model vertically
On parallel conducting wire 5, after more 5 parallel connections of parallel conducting wire in every group of conducting wire group respectively with corresponding variable resistance and corresponding
First DC power supply 7, more parallel connections in two groups of conducting wire groups are used alone in the connection of one DC power supply 7, i.e. one group of conducting wire group
Conducting wire 5 is mutually parallel and is evenly distributed on buildings model front side surface and rear side surface;For connecting more parallel conducting wires 5
It is positioned horizontally in above and below more parallel conducting wires 5 respectively with the connecting wire of DC power supply.Inside energization solenoid 1
The connecting wire for connecting multiple groups parallel conducting wire 5 and DC power supply that magnetic induction line direction and 2 surface of buildings model are arranged
Setting direction is parallel, to make it not by the influence of Ampere force, with the accurate of guarantee test data.
Due to wind load on depth of building direction often uneven distribution, if every parallel conducting wire 5 with building mould
The fitting of type surface, then can not wind load suffered by accurate simulation building, cause test result not accurate enough.It is further quasi-
The really accuracy of simulation and guarantee test result, in the utility model, according to wind load along the changing rule of height, simultaneously by every
The top of connection conducting wire 5 is fitted closely with 2 surface of buildings model, and one in more parallel conducting wires 5 or mostly with parallel conducting wire 5
Lower part is not bonded with building surface, that is, the part in parallel conducting wire 5 for being distributed in buildings model bottom end is curved within a certain height
It rises, 5 lower part of parallel conducting wire that this part is not bonded with building surface at this time does not generate the effect of power to buildings model, thus quasi-
Situation of change of the true simulated wind load along height.
Each facade of buildings model is all made of mortar and is made, and buildings model is internally provided with iron wire, that is, uses mortar generation
For the concrete in building, iron wire replaces the reinforcing bar in building, and buildings model is reasonably arranged according to code of building design.
Buildings model makes in proportion, for the skyscraper of conventional 100m height, is made of the ratio of 1:50.
The Ampere force direction model as suffered by the parallel conducting wire 5 being arranged on buildings model front side surface, so Ampere force begins
It acts in buildings model eventually, and Ampere force suffered by the parallel conducting wire 5 of buildings model rear side surface leaves buildings model, therefore
This Ampere force can make parallel conducting wire 5 deviate model and can not make buildings model stress, to make set by buildings model rear side surface
The Ampere force of parallel conducting wire 5 be likewise passed in buildings model, more parallel conducting wires 5 are by way of gluing and/or pass through
The horizontal hoop being laterally arranged uniformly is fixed on 2 surface of buildings model, and plastic wire band can be used in horizontal hoop.
B: the buildings model 2 for completing wire arrangements is placed in energization solenoid 1.
In the application, the more parallel conducting wires 5 in 1 inside magnetic induction line direction of energization solenoid and the setting of 2 surface of buildings model
Direction it is vertical, to generate the Ampere force perpendicular to building surface in the horizontal direction on more parallel conducting wires 5, due to
Wind load is also in the horizontal direction perpendicular to building surface, thus the wind load of this Ampere force analog building surface.
Energization solenoid 1 is arranged on support 3, in the application, can open up and 1 shape of energization solenoid in 3 upper surface of support
The compatible arc groove of shape, energization solenoid 1 are arranged in arc groove.To guarantee the equal of 1 internal magnetic field of energization solenoid
Even, 1 length of energization solenoid is more than or equal to 2.5 times of 1 internal diameter of energization solenoid.Insulated leg 3 can be used in support 3, such as utilizes
The insulated leg 3 of concrete masonry units.
Lower horizontal inside energization solenoid 1 is provided with insulated platform 4, and insulated platform 4 is using insulating materials such as plastics
It is made.Buildings model 2 is arranged on insulated platform 4, and fixed by the fixed device of buildings model 2 and insulated platform 4.This implementation
In example, copper screw is can be used in the fixed device of insulated platform 4.
The winding wire wound on energization solenoid 1 is connect with the second DC power supply.Variable resistance, the first DC power supply 7
It is respectively positioned on outside energization solenoid 1 with the second DC power supply, prevents from impacting test data.
C: according to test requirements document, design experiment parameter;
If the height of buildings model 2 is H, i.e., the length of single parallel conducting wire 5 is H;The reality passed through on single parallel conducting wire 5
Border electric current is I1, being arranged on the first test surfaces and the second test surfaces includes M root parallel conducting wire 5 in conducting wire group;Then buildings model 2
Front side surface and rear side surface on suffered magnetic field to total Ampere force F of the generation of electrified wireAlways=B*I1*H*M*2;If
Magnetic field strength is B,Wherein, μ0For space permeability in electromagnetism constant current magnetic field, μ0
=4 π * 10-7H/m, n are by the coil total number of turns that winds on energization solenoid 1;I2By the coil wound on energization solenoid 1
By actual current;As shown in figure 3, energization solenoid 1 is transversely and horizontally placed, rectangle is obtained after upright projection from top to bottom
It projects, rectangular centre point carries out line between the endpoint of rectangle top two in rectangular projection, wherein in rectangular projection in rectangle
It is α that the line of heart point and rectangle top left end point and rectangle top, which are formed by acute angle,1, rectangular centre point and square in rectangular projection
It is α that the line of shape top right endpoint and rectangle top, which are formed by obtuse angle,2。
Each test parameters is designed, and is guaranteed under the test parameters designed herein, magnetic field strength B is less than or equal to 0.8T, with
Ensure power supply load within 30KV.
In the present embodiment, if the cross-sectional area of electrified wire is 2.627mm2, the outer diameter r of electrified wire1For 1.82mm, this
Under cross-sectional area, for conducting wire normal through electric current 10.4A, maximum is practical to pass through current in wire I by electric current 11.8A1=10A;If
The radius of energization solenoid 1 is r2=1.4m, the length of energization solenoid 1 are L2=7m, to ensure 1 land occupation face of energization solenoid
Product is as small as possible, while guaranteeing that the coil number of plies is as few as possible;
If the cross-sectional area of the winding wire wound on energization solenoid 1 is 5.26mm2, outer diameter r3For 2.59mm, single layer is tight
Solid matter column coil turn is 386 circles, and the coil number of plies is 75 layers, the total number of coils n=386* wound on energization solenoid 1
75, for the winding wire wound on energization solenoid 1 normal through electric current 20.8A, maximum is practical by leading by electric current 23.7A
Line current I2=20A;
In the present embodiment, current direction is counterclockwise in the winding wire that winds on energization solenoid 1, buildings model
Current direction in the parallel conducting wire 5 of 2 front and rear sides surface setting is from top to bottom, so that front vertical bears wind load
The front side surface of buildings model 2 i.e. the first test surfaces are by active force perpendicular to front side surface and backward, after buildings model 2
Side surface i.e. the second test surfaces are by active force perpendicular to rear side surface and backward.
D: carrying out test data check using laser displacement gauge, i.e., after testing equipment unlatching, utilizes laser displacement gauge institute
Miniature deformation caused by 2 end of buildings model measured calculates 2 stress size of buildings model, and judges that this stress size is
Total Ampere force F of the no and magnetic field to the generation of electrified wireAlwaysIt is in the same size, if unanimously, entering step E;If inconsistent, return
Return step A;
When the 2 surface conducting wire group of winding wire and buildings model wound on energization solenoid 1 is powered, using swash
Light displacement meter measures the miniature deformation that 2 end of buildings model generates, if is produced from 2 end of buildings model measured by laser displacement gauge
Raw miniature deformation, that is, horizontal displacement is that (horizontal displacement is stress test field professional term to a, refers to buildings model in this application
The displacement of 2 ends in the longitudinal direction), the buildings model 2 being fixed in energization solenoid 1 can be reduced to a vertical placement
Cantilever beam, by known to material structural mechanics under intimate evenly load q effect, the horizontal displacement on 2 top of buildings modelWherein, H is the height of buildings model 2, and E is elasticity modulus, IzFor cross sectional moment of inertia, E and IzRespectively according to model
Material and structural plan arrangement are calculated;
According to above-mentioned formula, miniature deformation caused by 2 end of buildings model measured using laser displacement gauge is i.e. horizontal
It is displaced a, intimate evenly load q can be acquired;Then total level load suffered by buildings model 2 is qH, and buildings model 2 should be received total
Horizontal loading is FAlways=B*I1* H*M*2, by judging qH and FAlwaysIt is whether equal to prove whether testing program is reasonable;If qH=
FAlways, then E is entered step;If qH ≠ FAlways, then return step A carries out continuing to debug;
E: by adjusting the size of current and adjust in parallel conducting wire 5 that the winding wire wound on energization solenoid 1 passes through
By size of current, change the size of 2 surface stress of buildings model, with simulated wind load, until buildings model 2 is destroyed;Together
When record related data in real time.
Magnitude of field intensity in energization solenoid 1 can lead to by adjusting in the winding wire wound on energization solenoid 1
The size of current crossed is realized;The size of current passed through in parallel conducting wire 5 can be realized by adjusting variable resistance resistance value size.
Claims (9)
1. a kind of nearly cuboid builds Surface Wind Load simulation test device, it is characterised in that: including energization solenoid and setting
The buildings model of nearly cuboid in energization solenoid, the front side surface and rear side surface of buildings model are provided with conducting wire
Group, every group of conducting wire group include the more parallel conducting wires being uniformly arranged vertically, after more parallel conducting wires are in parallel with the first direct current
Source connection;Energization solenoid inner horizontal is provided with insulated platform, and buildings model is arranged on insulated platform, on energization solenoid
The winding wire of winding is connect with the second DC power supply, and magnetic induction line direction and buildings model surface are arranged inside energization solenoid
The direction of more parallel conducting wires is vertical.
2. nearly cuboid according to claim 1 builds Surface Wind Load simulation test device, it is characterised in that: building mould
The front side surface and rear side surface of type are respectively provided with two groups of conducting wire groups, and every group of conducting wire group includes the more parallel connections being uniformly arranged vertically
Conducting wire, after more parallel conducting wires in every group of conducting wire group are in parallel respectively with corresponding variable resistance and corresponding first DC power supply
It connects, more parallel conducting wires in two groups of conducting wire groups are mutually parallel and are evenly distributed on the front side surface and rear side of buildings model
On surface, variable resistance and the first DC power supply are respectively positioned on outside energization solenoid.
3. nearly cuboid according to claim 2 builds Surface Wind Load simulation test device, it is characterised in that: every simultaneously
Connection conducting wire is vertically arranged on buildings model surface up and down, and the top of every parallel conducting wire is closely pasted with buildings model surface
It closes, one in more parallel conducting wires or is not bonded with building surface with the lower part of parallel conducting wire mostly, for connecting more simultaneously
The connecting wire of connection conducting wire and DC power supply is positioned horizontally in respectively above and below more parallel conducting wires, inside energization solenoid
The connecting wire for connecting multiple groups parallel conducting wire and DC power supply that magnetic induction line direction is arranged with buildings model surface is set
It is parallel to set direction.
4. nearly cuboid according to claim 1 builds Surface Wind Load simulation test device, it is characterised in that: energization spiral shell
Spool is arranged on the support, and energization solenoid length is more than or equal to 2.5 times of energization solenoid internal diameter.
5. nearly cuboid according to claim 1 builds Surface Wind Load simulation test device, it is characterised in that: further include
For measuring the laser displacement gauge of miniature deformation caused by buildings model end.
6. nearly cuboid according to claim 4 builds Surface Wind Load simulation test device, it is characterised in that: on support
Surface opens up arc groove compatible with energization solenoid shape, and energization solenoid is arranged in arc groove.
7. nearly cuboid according to claim 4 builds Surface Wind Load simulation test device, it is characterised in that: support is
Insulated leg.
8. nearly cuboid according to claim 4 builds Surface Wind Load simulation test device, it is characterised in that: building mould
Type is arranged on insulated platform, and is fixed by the fixed device of buildings model with insulated platform.
9. nearly cuboid according to claim 3 builds Surface Wind Load simulation test device, it is characterised in that: more simultaneously
Conducting wire is by way of gluing and/or the horizontal hoop by being laterally arranged uniformly is fixed on buildings model surface for connection.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109459208A (en) * | 2019-01-11 | 2019-03-12 | 郑州大学 | A kind of nearly cuboid building Surface Wind Load simulation test device and test method |
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2019
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109459208A (en) * | 2019-01-11 | 2019-03-12 | 郑州大学 | A kind of nearly cuboid building Surface Wind Load simulation test device and test method |
CN109459208B (en) * | 2019-01-11 | 2023-10-20 | 郑州大学 | Near-cuboid building surface wind load simulation test device and test method |
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