CN106092472B - Ancient architecture gallows timber big displacement low cycling loads test loading synchronous device - Google Patents
Ancient architecture gallows timber big displacement low cycling loads test loading synchronous device Download PDFInfo
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- CN106092472B CN106092472B CN201610360271.7A CN201610360271A CN106092472B CN 106092472 B CN106092472 B CN 106092472B CN 201610360271 A CN201610360271 A CN 201610360271A CN 106092472 B CN106092472 B CN 106092472B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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Abstract
Ancient architecture gallows timber big displacement low cycling loads are tested loading synchronous device and are made of two sets of plane swing columns being fixed on double knife edges bearing, otic placode, dynamometer link, loading winch and an ancient architecture gallows timber model.Dynamometer link is connected between plane swing column and ancient architecture gallows timber, adjusts the height of the otic placode in the distance between two edges of a knife of double knife edges bearing and plane swing column.When ancient architecture gallows timber big displacement low cycling loads are tested, the loading winch loading of ancient architecture gallows timber model one end, the loading winch of the other end of ancient architecture gallows timber model loosens, ancient architecture gallows timber model and the displacement synchronous of plane swing column；Dynamometer link keeps horizontality.Realize the displacement of loading device and the displacement synchronous being applied on ancient architecture gallows timber model.The configuration of the present invention is simple, synchronism is good, makes, is easy for installation, at low cost, is tested suitable for ancient architecture gallows timber model low cycling loads, and the ancient architecture gallows timber big displacement low cycling loads especially suitable for full size are tested.
Description
Technical field
The present invention relates to big displacement low cycling loads to test loading synchronous device, suitable for ancient architecture gallows timber model
Low cycling loads are tested, and the ancient architecture gallows timber model big displacement low cycling loads especially suitable for full size are tested.
Background technology
Low cycling loads are tested or are pseudo-static experimental, are to gradually being increased by geodesic structure using loading device
Greatly, the Cyclic Loading or shift reciprocately reduced is a kind of method of earthquake-resistant structure experiment.
Low cycling loads experimental evidence is tested its different loading device of structure objects and different, and loading device is in various
Change.
Usual low cycling loads experiment is mostly using electrohydraulic servo system as loading equipemtn.Electrohydraulic servo system has good
Good dynamic characteristic forms complicated, higher price.There are flexural pivot in the pedestal of actuator and the front end of actuator, generally
Think to follow by the height of the change in displacement automatic adjustment actuator of geodesic structure, realize that the loading direction of actuator remains
It flatly acts on by geodesic structure, but the flexural pivot of actuator front end and actuator pistons are at an angle in practical application, no
On a horizontal line, the loading of actuator highly changes, when big displacement Cyclic Loading is tested, the loading height of actuator
Variation becomes apparent, this illustration is wrong in the load or displacement exported by the load of geodesic structure or displacement with loading system
Difference, be nonsynchronous.
The content of the invention
Ancient architecture gallows timber big displacement low cycling loads experiment loading synchronous device is fixed on by two sets on double knife edges bearing
Plane swing column, otic placode, dynamometer link, loading winch and ancient architecture gallows timber model composition.Dynamometer link is connected to plane and shakes
It puts between column and ancient architecture gallows timber, adjusts the distance between two edges of a knife of double knife edges bearing and the otic placode in plane swing column
Highly.When ancient architecture gallows timber big displacement low cycling loads are tested, the loading winch loading of ancient architecture gallows timber model one end, ancient architecture
The loading winch of the other end of gallows timber model loosens, ancient architecture gallows timber model and the displacement synchronous of plane swing column；Dynamometer link
Keep horizontality.Realize the displacement of loading device and the displacement synchronous being applied on ancient architecture gallows timber model.
The configuration of the present invention is simple, synchronism is good, makes, is easy for installation, at low cost, suitable for ancient architecture gallows timber model low week
Cyclic Loading is tested, and the ancient architecture gallows timber big displacement low cycling loads especially suitable for full size are tested.
Ancient architecture gallows timber big displacement low cycling loads test loading synchronous device, it is characterized in that：
The both sides of the ancient architecture gallows timber model set a plane swing column and fix a loading winch, ancient architecture respectively
There is vertical loading counterweight on gallows timber model.One end of dynamometer link is connected to otic placode one end in plane swing column, dynamometer link
One end of vertical loading counterweight on other end connection ancient architecture gallows timber model.Steel wire rope one end connection plane of loading winch is shaken
The other end of the otic placode on column is put, loading winch is fixed on ground.Plane swing column back welding is connected on double knife edges bearing upper padding plate
The center in face.Double knife edges bearing lower bolster is fixed on ground.When the loading winch loading of ancient architecture gallows timber model one side,
The loading winch of ancient architecture gallows timber model opposite side loosens, ancient architecture gallows timber model and the displacement synchronous of plane swing column；Dynamometry
Bar keeps horizontality.
The ancient architecture gallows timber big displacement low cycling loads test loading synchronous device, and plane swing column, which is one, one
Measured length and the steel pipe for having enough rigidity deposits, thereon certain altitude（It is highly consistent with ancient architecture gallows timber model load(ing) point）,
Equipped with upper and lower adjustable otic placode, lower prop back welding is connected on the center above the double knife edges bearing upper padding plate of enough rigidity deposits
Position.Otic placode arrange a large displacement sensor, monitoring low cycling loads experiment process displacement whether with ancient architecture gallows timber
The displacement of model is equal.
The double knife edges bearing upper padding plate and double knife edges bearing lower bolster have a force transmission mechanism between them --- and " edge of a knife ",
It is the combination of two single-edge bearings.Four guide grooves of certain size are processed on double knife edges bearing upper padding plate for connecting two
The distance between " knife " and adjustment two " knife ".Two " knives " are that rigidity is enough, sectional dimension is equal, and cross section is triangle
The tri-prismoid of shape.There is twice V-groove above double knife edges bearing lower bolster（" mouth "）；Its distance connects with double knife edges bearing upper padding plate
The distance of two " knives " connecing is equal.The distance of two " edges of a knife " is determined by the calculating with ancient architecture gallows timber model.
The otic placode is process by the steel plate of certain rigidity, there are two circular hole, is respectively used to one end of connection dynamometer link
With one end of the steel wire rope of connection loading winch.
The distance of the lug plate holes to plane swing column column central shaft of described connection dynamometer link one end is two knife-edge supporters
The half of " knife " distance.Otic placode is adjusted above and below plane swing column, height and ancient architecture gallows timber model load(ing) point
It is highly consistent.
The dynamometer link is that certain length and rigidity are in rod-shaped force cell enough, for measuring to ancient architecture gallows timber
The size that model is further applied load.An obliquity sensor, dynamometry during monitoring low cycling loads experiment are arranged on dynamometer link
Whether bar is horizontal.In the suitable position of the height and position of ancient architecture gallows timber model load(ing) point, arrangement one big displacement sensing
Device, the size of measurement ancient architecture gallows timber model low cycling loads experiment displacement.
Realize ancient architecture gallows timber big displacement low cycling loads provided by the present invention experiment loading synchronous device with it is existing
Technology is compared, and its advantages are with good effect：
Realize a kind of new synchronous loading device of low cycling loads experiment.Overcome existing low cycling loads experiment
Loading device is acted on by the load of geodesic structure or displacement and the load of loading system output or the error of displacement, is reduced existing
The manufacture cost of loading device simplifies the structure type of loading device, convenient for Loading Control and installation.Suitable for ancient architecture wood structure
Frame model low cycling loads are tested, and the ancient architecture gallows timber big displacement low cycling loads especially suitable for full size are tested.
Description of the drawings
Fig. 1 is ancient architecture gallows timber big displacement low cycling loads experiment loading synchronous device schematic diagram of the present invention.
Fig. 2 is swing column of the present invention and the mutually contour unequal calculation diagram of model column diameter.
Fig. 3 is the application of ancient architecture gallows timber big displacement low cycling loads experiment loading synchronous device of the present invention.
Specific embodiment
The specific embodiment of the present invention is further illustrated.
The foundation of ancient architecture gallows timber big displacement low cycling loads experiment loading synchronous device of the present invention.
1.1 prior art scenario
Low cycling loads are tested or are pseudo-static experimental, are to gradually being increased by geodesic structure using loading device
Greatly, the Cyclic Loading or shift reciprocately reduced is a kind of method of earthquake-resistant structure experiment.
Low cycling loads experimental evidence is tested its different loading device of structure objects and different, and loading device is in various
Change.
Usual low cycling loads experiment is mostly using electrohydraulic servo system as loading equipemtn.Electrohydraulic servo system has good
Good dynamic characteristic forms complicated, higher price.There are flexural pivot in the pedestal of actuator and the front end of actuator, generally
Think to follow by the height of the change in displacement automatic adjustment actuator of geodesic structure, realize that the loading direction of actuator remains
It flatly acts on by geodesic structure, but the flexural pivot of actuator front end and actuator pistons are at an angle in practical application, no
On a horizontal line, the loading of actuator highly changes, when big displacement Cyclic Loading is tested, the loading height of actuator
Variation becomes apparent, this illustration is wrong in the load or displacement exported by the load of geodesic structure or displacement with loading system
Difference, be nonsynchronous.
The calculating of 1.2 synchronous loading devices
Ancient architecture gallows timber（By the Song Dynasty《Ying Fashi》Seven grade materials design）Big displacement low cycling loads test loading synchronous
The calculating of device, as shown in Figure 2.
1.2.1 ancient architecture gallows timber model column is equal with the diameter of plane swing column, high unequal
As shown in Figure 1, the paving of ancient architecture gallows timber model makees the rigidity of layer and is far longer than the firm of ancient architecture gallows timber model column
Degree.When ancient architecture gallows timber big displacement low cycling loads are tested, the paving of ancient architecture gallows timber model is considered as a rigidity as layer
Layer.In this way, as shown in Figure 2, the tall and big height in ancient architecture gallows timber model column of plane swing column.Ancient architecture gallows timber model column
High H=2760mm, under the action of power F, A points are the circular motion of R along radius.A height of H+h=2760+1135 of plane swing column
=3895mm, under the action of power F, B points are the circular motion of r along radius.
If：The diameter of ancient architecture gallows timber model column is equal with the diameter of plane swing column, diameter D=389mm, ancient architecture wood structure
High H=2760mm of frame model column, a height of H+h=2760+1135=3895mm of plane swing column.
Ancient architecture gallows timber model column under the action of power F, along the circular arc that radius is R transport by the A points of ancient architecture gallows timber model column
Dynamic, the maximal increment of A points is a height of：
Plane swing column is under the action of power F, and the B points of plane swing column are along the circular motion that radius is r, the maximum of B points
Increment is a height of：
, the A points of ancient architecture gallows timber model column are asynchronous with the B points of plane swing column.
1.2.2 ancient architecture gallows timber model is synchronous with plane swing column
IfThen ancient architecture gallows timber model column A points are synchronous with plane swing column B points.Ancient architecture gallows timber
A diameter of D=389mm of model column, plane swing column it is a diameter of。
When the diameter of plane swing column, ancient architecture gallows timber model column A
Point is synchronous with plane swing column B points.
1.3 example
Ancient architecture gallows timber big displacement low cycling loads experiment loading synchronous device is fixed on by two sets on double knife edges bearing
Plane swing column, otic placode, dynamometer link, loading winch and ancient architecture gallows timber model composition.
As shown in Figure 1, steel pipe one end that one has certain length and there are enough rigidity deposits has been welded on enough just
The center above the double knife edges bearing upper padding plate of deposit is spent, double knife edges bearing lower bolster is fixed on ground, and composition plane is shaken
Put column.One end of otic placode connection dynamometer link in plane swing column, the one of the other end connection ancient architecture gallows timber model of dynamometer link
End.The other end of steel wire rope one end connection otic placode of winch is loaded, loading winch is fixed on ground.A big displacement is arranged in otic placode
Whether sensor, the displacement of monitoring low cycling loads experiment process are equal with the displacement of ancient architecture gallows timber model.Dynamometer link is
Certain length and rigidity are enough in rod-shaped force cell, for measuring the size being further applied load to ancient architecture gallows timber model.
An obliquity sensor is arranged on dynamometer link, whether dynamometer link is horizontal during monitoring low cycling loads experiment.
The suitable position of the height and position of ancient architecture gallows timber model load(ing) point arranges a large displacement sensor, measures ancient architecture gallows timber mould
Type low cycling loads test the size of displacement.
This time experiment shares 4 models, by the Song Dynasty《Ying Fashi》Seven grade materials design prototype is 4 column models and 2 columns
Each one of model, by the Song Dynasty《Ying Fashi》Eight grade materials design prototype is 2 column models and by the Song Dynasty《Ying Fashi》
One 4 column scale model of 1/2 7 grade materials design.According to calculating, change the distance of double knife edges bearing two " edge of a knife ", connect and survey
The distance of the lug plate holes of power bar to plane swing column central shaft is the half of two knife-edge supporter " knife " distances, adjusts plane
The height of otic placode in swing column carries out big displacement low cycling loads experiment to 4 ancient architecture gallows timber models.
It is seven grade materials if attached drawing 3 is the application of ancient architecture gallows timber big displacement low cycling loads experiment loading synchronous device
Low cycling loads experiment under the 2nd grade of vertical load of 2 column model of full size.
The big displacement low cycling loads of 4 ancient architecture gallows timber models experiments have shown that, when one end of ancient architecture gallows timber model
Loading winch loading when, the loading winch of the other end of ancient architecture gallows timber model loosens, and ancient architecture gallows timber model shakes with plane
Put the displacement synchronous of column；Dynamometer link keeps horizontality.Demonstrating the present invention, " ancient architecture gallows timber big displacement low cycling loads try
Test loading synchronous device " synchronism.
By changing two " edge of a knife " distances of double knife edges bearing, the lug plate holes of dynamometer link are being connected into plane swing column
Under conditions of the distance of mandrel is the half of two knife-edge supporter " knife " distances, a kind of new low cycling loads are realized
The synchronous loading device of experiment.Existing low cycling loads experiment loading unit is overcome to act on by the load of geodesic structure or displacement
With the load of loading system output or the error of displacement, the manufacture cost of existing loading device is reduced, simplifies loading device
Structure type, convenient for Loading Control and installation.It is tested suitable for ancient architecture gallows timber model low cycling loads, especially suitable for
The ancient architecture gallows timber big displacement low cycling loads experiment of full size.
Claims (6)
1. a kind of ancient architecture gallows timber big displacement low cycling loads test loading synchronous device, including ancient architecture gallows timber model and two
Cover plane swing column, otic placode, double knife edges bearing, dynamometer link and loading winch；It is characterized in that：
The ancient architecture gallows timber model（6）Both sides one plane swing column is set respectively（1）With fix a loading winch
（8）, ancient architecture gallows timber model（6）On have vertical loading counterweight（7）；Dynamometer link（5）One end be connected to plane swing column（1）On
Otic placode（2）One end, dynamometer link（5）The other end connection ancient architecture gallows timber model（6）On vertical loading counterweight（7）One
End；Load winch（8）Steel wire rope（9）One end connects plane swing column（1）On otic placode（2）The other end, load winch（8）
It is fixed on ground；Plane swing column（1）Column back welding is connected on double knife edges bearing upper padding plate（3）Center above；Double knife edges branch
Seat lower bolster（4）It is fixed on ground；When ancient architecture gallows timber model（6）The loading winch of one side（8）During loading, ancient architecture gallows timber mould
Type（6）Opposite side loading winch（8）Loosen, ancient architecture gallows timber model（6）With plane swing column（1）Displacement synchronous；It surveys
Power bar（5）Keep horizontality.
2. ancient architecture gallows timber big displacement low cycling loads as described in claim 1 test loading synchronous device, it is characterized in that：
The ancient architecture gallows timber big displacement low cycling loads test loading synchronous device, plane swing column（1）Being one has a fixed length
The steel pipe of enough rigidity deposits is spent and has, thereon certain altitude, equipped with upper and lower adjustable otic placode（2）, lower prop back welding is connected on
There is the double knife edges bearing upper padding plate of enough rigidity deposits（3）Center above；In otic placode（2）Upper arrangement one big displacement sensing
Device, monitoring low cycling loads experiment process displacement whether with ancient architecture gallows timber model（6）Displacement it is equal.
3. ancient architecture gallows timber big displacement low cycling loads as claimed in claim 1 or 2 test loading synchronous device, feature
It is：The double knife edges bearing upper padding plate（3）With double knife edges bearing lower bolster（4）There is a force transmission mechanism between them --- " knife
Mouth " is the combination of two single-edge bearings；Double knife edges bearing upper padding plate（3）Four guide grooves of upper processing certain size are used to connect
Connect the distance between two " knives " and adjustment two " knife "；Two " knives " are that rigidity is enough, sectional dimension is equal, cross section
For the tri-prismoid of triangle；Double knife edges bearing lower bolster（4）There is twice V-groove " mouth " above；Its distance and double knife edges bearing
Upper padding plate（3）The distance of two " knives " of connection is equal；The distance of two " edges of a knife " be by with ancient architecture gallows timber model（6）'s
Calculate what is determined.
4. ancient architecture gallows timber big displacement low cycling loads as claimed in claim 1 or 2 test loading synchronous device, feature
It is：The otic placode（2）It is process by the steel plate of certain rigidity, there are two circular holes, are respectively used to connection dynamometer link（5）One end
Winch is loaded with connection（8）Steel wire rope（9）One end.
5. ancient architecture gallows timber big displacement low cycling loads experiment loading synchronous device as described in claim 1, it is characterized in that：
Connect dynamometer link（5）The otic placode of one end（2）Hole is to plane swing column（1）The distance of column central shaft be two knife-edge supporters " knife " away from
From half；Otic placode（2）In plane swing column（1）It is adjustable up and down, height and ancient architecture gallows timber model（6）Load(ing) point
It is highly consistent.
6. ancient architecture gallows timber big displacement low cycling loads as described in claim 1 test loading synchronous device, it is characterized in that：
The dynamometer link（5）It is that certain length and rigidity are in rod-shaped force cell enough, for measuring to ancient architecture gallows timber model
（6）The size being further applied load；In dynamometer link（5）One obliquity sensor of upper arrangement is surveyed during monitoring low cycling loads experiment
Power bar（5）Whether it is horizontal；In ancient architecture gallows timber model（6）The suitable position of the height and position of load(ing) point, arrangement one are big
Displacement sensor measures ancient architecture gallows timber model（6）Low cycling loads test the size of displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610360271.7A CN106092472B (en) | 2016-05-28 | 2016-05-28 | Ancient architecture gallows timber big displacement low cycling loads test loading synchronous device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610360271.7A CN106092472B (en) | 2016-05-28 | 2016-05-28 | Ancient architecture gallows timber big displacement low cycling loads test loading synchronous device |
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| Publication Number | Publication Date |
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| CN106092472A CN106092472A (en) | 2016-11-09 |
| CN106092472B true CN106092472B (en) | 2018-05-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5372479B2 (en) * | 2008-12-09 | 2013-12-18 | 博章 山口 | Method and apparatus for measuring earthquake resistance or wind pressure strength of wooden houses |
| CN202110061U (en) * | 2011-06-14 | 2012-01-11 | 西安建筑科技大学 | Multifunctional pseudo static testing device |
| CN102889951A (en) * | 2012-10-24 | 2013-01-23 | 张德虹 | Easy timberwork static-pressure weight-sensing device |
| CN104215196B (en) * | 2014-09-30 | 2016-10-05 | 福州大学 | It is applicable to the monitoring and pre-alarming method of historic building structure deformation |
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