CN106192739B - A kind of vertical force measurement type bridge pad and its force measuring method - Google Patents
A kind of vertical force measurement type bridge pad and its force measuring method Download PDFInfo
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- CN106192739B CN106192739B CN201610776009.0A CN201610776009A CN106192739B CN 106192739 B CN106192739 B CN 106192739B CN 201610776009 A CN201610776009 A CN 201610776009A CN 106192739 B CN106192739 B CN 106192739B
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- slide plate
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- load cell
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A kind of vertical dynamometry bridge pad and its force measuring method, measurement and integral calibrating by local pressure, determine bearing entirety stress, it is simple in structure, size and weight increase is smaller, dynamometry is reliable, the vertical force measuring function of bridge pad can be achieved, solve the vertical dynamometry problem of bearing, technical support is provided for bridge monitoring.
Description
Technical field
The invention belongs to bridge structure or technical field of buildings, be related to a kind of bridge pad for having vertical force measuring function and
Its force measuring method.
Background technology
As China's highway, railroad bridge construction increase year by year, the various loads of bridge include quiet, dynamic and impact load
The test and monitoring for waiting vertical loads have important practical significance to the operation of bridge.Realize the vertical counter-force of bridge pad, that is, bridge
The acquisition of monitoring data can provide technical basis for the health monitoring of bridge.
The bridge pad for having vertical force measuring function at present is less,《A kind of multidirectional Dynamometric support of ball-type》（The patent No.
CN102912772 A）Dynamometry is realized by the laterally disposed standard transducer of pressure-bearing wedge-shaped member in bearing；《A kind of vertical intelligence
It can Dynamometric support》（Patent No. CN102032959 A）It is main that special shape component setting resistance strain gage is selected to realize dynamometry.On
It states patent and all refers to spherical bearing, and dynamometry component dynamometry thinking belongs to monoblock type dynamometry mode, structure member increase is more,
Size is big, bearing is heavier.
《A kind of Simple bridge Dynamometric support》（Patent No. CN203741696 U）For General Purpose Rubber pot bearing, pass through water
Force measuring function is realized in the variation of silver-colored column.《A kind of Simple bridge Dynamometric support》（Patent No. CN203741696 U）With《A kind of electrical measurement
Power seat structure》（Patent No. CN202830748 U）Be General Purpose Rubber pot bearing dynamometry, respectively by set mercury and
Dynamometer realizes force measuring function.
Invention content
A kind of vertical dynamometry bridge pad and its force measuring method proposed by the present invention, measurement and entirety by local pressure
Calibration, determines bearing entirety stress, simple in structure, size and weight increase is smaller, dynamometry it is reliable, it can be achieved that bridge pad it is perpendicular
To force measuring function, the vertical dynamometry problem of bearing is solved, technical support is provided for bridge monitoring.
To realize the above-mentioned technical purpose, used technical solution is：A kind of vertical force measurement type bridge pad, including from upper
Upper base plate, middle seat board and the lower seat board set gradually under is equipped with lower peripheral surface stainless steel slide plate, lower seat in the lower surface of middle seat board
The upper surface of plate is equipped with lower peripheral surface nonmetallic slide plate, and lower peripheral surface stainless steel slide plate and lower peripheral surface nonmetallic slide plate form spherical rotation
Friction is secondary, and the peace for placing load cell vertically is offered at the center at the center of lower seat board and lower peripheral surface nonmetallic slide plate
It behave affectedly, load cell is fixed on by connecting bolt in installation cavity, in the dynamometry stress point and friction pair of load cell
The heart overlaps.
Installation center nonmetallic slide plate at the top of load cell of the present invention, center nonmetallic slide plate are pasted with middle seat board
The lower surface of lower peripheral surface stainless steel slide plate covered fits, between existing between center nonmetallic slide plate and lower peripheral surface nonmetallic slide plate
Gap
Installation cavity of the present invention is cylindrical cavity.
The long slot bore that load cell connecting line passes through is offered in lower seat board of the present invention.
A kind of force measuring method of vertical dynamometry bridge pad of the present invention includes the following steps：
Step 1: assembling verification：Bearing assembling is finished, is placed on testing machine, bearing center and testing machine centre bit
Alignment is put, finder charge is 1.5 times of bearing vertical bearing capacity, after being loaded onto the 1% of design bearing capacity, checks load cell
Stress confirms errorless rear progress precompressed；
Step 2: precompressed：Bearing Vertical Design bearing capacity is loaded with the speed of continuous uniform, 3 times repeatedly；
Step 3: formal loading：Finder charge is uniformly divided into 10 grades by zero to finder charge.It is carried during experiment with designing
The 1% of power is used as initial load, then multistage loadings, and record testing machine vertical load and dynamometry pass after every grade of load voltage stabilizing 2 minutes
Sensor load, until finder charge, voltage stabilizing unload after 3 minutes, loading procedure is carried out continuously 3 times；
Step 4: it draws：Load cells load takes the arithmetic mean of instantaneous value of every 3 sensor readings of level-one, draws sensing
Device load-testing machine load curve, and the Fitting Calculation is done, determine the relational expression of testing machine load and sensor load；
Step 5: it compares：Bearing in actual use, obtains the reading of load cell, is demarcated by step 4 in real time
Relational expression, judge the vertical applied force situation of bearing.
By adopting the above-described technical solution, the present invention has the advantages that：
1）Load cell is placed on seat board center under bearing, and passes through and connect bolt and fix；Load cell connects
Wiring is connected across rest base with inside groove with external display device.A part in bearing vertical force passes through the nonmetallic cunning in center
Plate is transmitted to load cell, completes the vertical pressure that center nonmetallic slide plate is born and measures, then determining by vertically demarcating
Load cell stress and bearing entirety vertical applied force relationship, in this way by the stress of sensor know the entirety of bearing vertically by
Power.
2）Sensor plan is arranged on seat board center under bearing, seat board is in stationary state under bearing, although ball
Face friction pair also rotates, but rotational frequency, amount of spin are small, and total displacement that slides is small, can maximally reduce bearing
Moving influences the vertical applied force of sensor.
3）Bearing has normal usage function, i.e., bearing vertically carries, glide direction slides, limiting direction limits and vertical
Rotating function；For the upper secondary friction pair for spherical surface of friction, have under geological process and subtract shock insulation function.
Description of the drawings
Fig. 1 is 1 structure diagram of the embodiment of the present invention；
Fig. 2 is the A-A sectional views of 1 structure of the embodiment of the present invention；
Fig. 3 is 2 structure diagram of the embodiment of the present invention；
Fig. 4 is the A-A sectional views of 2 structure of the embodiment of the present invention；
Fig. 5 is 3 structure diagram of the embodiment of the present invention；
Fig. 6 is the A-A sectional views of 3 structure of the embodiment of the present invention；
Fig. 7 is 4 structure diagram of the embodiment of the present invention；
Fig. 8 is the A-A sectional views of 4 structure of the embodiment of the present invention；
Fig. 9 is 5 structure diagram of the embodiment of the present invention；
Figure 10 is the A-A sectional views of 5 structure of the embodiment of the present invention；
Figure 11 is 6 structure diagram of the embodiment of the present invention；
Figure 12 is the A-A sectional views of 6 structure of the embodiment of the present invention；
In figure：1st, upper base plate, 2, upper stainless steel slide plate, 3, upper nonmetallic slide plate, 4, middle seat board, 5, lower peripheral surface stainless steel slides
Plate, 6, lower peripheral surface nonmetallic slide plate, 7, lower seat board, 8, load cell, 9, center nonmetallic slide plate, 10, connection bolt, 11,
It is oriented to stainless steel slide plate, 12, be oriented to nonmetallic slide plate, 13, limiting plate.
Specific embodiment
A kind of vertical force measurement type bridge pad, mainly including upper base plate, middle seat board, lower seat board, load cell, stainless steel
The components such as slide plate, nonmetallic slide plate and limiting plate form.
Seat board top is largely spherical surface under the bearing, and a cylinder is dug out in center to place dynamometry biography
Sensor has fixed load cell to connect the round tube hole that bolt passes through in centre bottom, and center has load cell connecting line to connect
The through-hole that passes through of head, while have the long slot bore that load cell connecting line passes through in rest base.
The bearing load cell is placed on lower seat board center, and passes through and connect bolt and fix.In force-measuring sensing
Inlay one piece of center nonmetallic slide plate at the top of device, the part in bearing vertical force is transmitted to force-measuring sensing by center pad
Device is completed the vertical pressure that center nonmetallic slide plate is born and is measured.Load cell connecting line pass through rest base and inside groove and
External display device connects, and completes bearing vertical force Value Data and obtains.
Seat board top is plane or spherical surface in the bearing, and bottom is spherical surface, and side is cylindrical type.
The bearing upper base plate contains glide mirror (plane) or spherical surface, bearing limiting direction setting limiting component.
The vertical pressure-bearing of bearing is secondary comprising 2 frictions altogether.Upper base plate has the pair that rubs on 1 plane or spherical surface with middle seat board
（Upper stainless steel slide plate+upper nonmetallic slide plate）, have 1 spherical surface friction secondary between middle seat board and lower seat board（Lower peripheral surface stainless steel is slided
Plate+lower peripheral surface nonmetallic slide plate+center nonmetallic slide plate）；One-way movable support is provided with guiding friction pair（Stainless steel is oriented to slide
Plate+guiding nonmetallic slide plate）.Secondary vertical carrying, sliding and the rotating function for realizing bearing of 2 vertical pressure-bearing frictions；For upper
Friction is secondary for spherical surface friction pair, is realized under geological process and subtracts shock insulation function；Guiding friction pair realizes limiting and is oriented to sliding work(
Energy.
The vertical force measuring method of bearing, including：
Step 1: bearing assembling is finished, it is placed on testing machine, bearing center is aligned with testing machine center.Examination
Test 1.5 times that load is bearing vertical bearing capacity.After being loaded onto the 1% of design bearing capacity, force acting on transducer is checked, is confirmed errorless
After carry out precompressed.
Step 2: precompressed.Bearing Vertical Design bearing capacity is loaded with the speed of continuous uniform, 3 times repeatedly.
Step 3: formal loading.Finder charge is uniformly divided into 10 grades by zero to finder charge.It is carried during experiment with designing
The 1% of power is used as initial load, then multistage loadings.Record testing machine vertical load and sensor after every grade of load voltage stabilizing 2 minutes
Load, until examining load, voltage stabilizing unloads after 3 minutes.Loading procedure is carried out continuously 3 times.
Step 4: every grade of sensor load takes the arithmetic mean of instantaneous value of 3 sensor readings, sensor load-experiment is drawn
Machine load curve, and the Fitting Calculation is done, determine the relational expression of testing machine load and sensor load.
The vertical rating test of bearing is completed by above-mentioned steps one to four.In this way in practical engineering project, obtain and pass
The reading of sensor passes through the relational expression of above-mentioned calibration, so that it may know the vertical applied force situation of bearing, reach dynamometry purpose.
Embodiment 1
The vertical dynamometry ball shaped steel bearing of multidirectional activity is provided, as shown in Figure 1, 2., mainly by upper base plate 1, upper stainless steel is slided for it
Plate 2, upper nonmetallic slide plate 3, middle seat board 4, lower peripheral surface stainless steel slide plate 5, lower peripheral surface nonmetallic slide plate 6, lower seat board 7, dynamometry pass
Sensor 8, center nonmetallic slide plate 9, connection bolt 10 grade components composition.Contain flat frictional pair between upper base plate 1 and middle seat board 4
（Upper stainless steel slide plate 2 and upper nonmetallic slide plate 3 form）；It is secondary containing spherical surface friction between middle seat board 4 and lower seat board 7（Lower peripheral surface
Stainless steel slide plate 5, lower peripheral surface nonmetallic slide plate 6 and center nonmetallic slide plate 9 form）, flat frictional pair and spherical surface friction are secondary altogether
Vertical pressure-bearing friction with composition bearing is secondary, have vertical carrying, longitudinal and transverse bridge to slide, vertical rotating function.
7 top of seat board is largely spherical surface under bearing, and a cylinder is dug out in center to place force-measuring sensing
Device 8 has affixed load cell 8 to connect the round tube hole that bolt 10 passes through in centre bottom, and there is 8 connecting line of load cell at center
The long slot bore that the through-hole and connecting line that connector passes through pass through.Load cell 8 is placed on the center of lower seat board 7, and passes through
Connection bolt 10 is fixed.Inlay one piece of center nonmetallic slide plate 9 at the top of load cell 8, the part in bearing vertical force
Load cell 8 is transmitted to by center nonmetallic slide plate 9, the vertical pressure that center nonmetallic slide plate 9 is born is completed and measures.
By vertical rating test, 9 stress of center nonmetallic slide plate are determined（I.e. load cell 8 measures force value）It is integrally erected with bearing
To stress relationship, the whole vertical applied force situation of bearing is known eventually by counter push away of the stress of load cell 8, so as to make bearing
Has vertical force measuring function.
The vertical dynamometry ball shaped steel bearing of multidirectional activity of the present embodiment is under normal circumstances, it can be achieved that vertical carrying, level
Vertical bridge has vertical survey always to, the slip of direction across bridge and bearing vertical rotating function during bearing whole service
Power function.
Embodiment 2
The vertical dynamometry ball shaped steel bearing of one-way movable is provided, as shown in Figure 3,4., mainly by upper base plate 1, upper stainless steel is slided for it
Plate 2, upper nonmetallic slide plate 3, middle seat board 4, lower peripheral surface stainless steel slide plate 5, lower peripheral surface nonmetallic slide plate 6, lower seat board 7 are oriented to not
Become rusty steel slide plate 11, is oriented to nonmetallic slide plate 12, load cell 8, center nonmetallic slide plate 9, connection bolt 10 grade components composition.
Contain flat frictional pair between upper base plate 1 and middle seat board 4（Upper stainless steel slide plate 2 and upper nonmetallic slide plate 3 form）；Middle seat board 4
It is secondary containing spherical surface friction between lower seat board 7（Lower peripheral surface stainless steel slide plate 5, the nonmetallic cunning of lower peripheral surface nonmetallic slide plate 6 and center
Plate 9 forms）, lower seat board 7 and upper base plate 1 have guiding friction pair in limiting direction both sides（By guiding stainless steel slide plate 11 and it is oriented to
Nonmetallic slide plate 12 forms）.The vertical pressure-bearing friction that flat frictional pair and spherical surface friction pair collectively constitute bearing is secondary, has vertical
Carrying, main displacement direction are slided, vertical rotating function；Guiding friction pair plays bearing to be slided in the limiting of limiting direction and glide direction
Shifting function.
7 top of seat board is largely spherical surface under bearing, and a cylinder is dug out in center to place force-measuring sensing
Device 8 has affixed load cell 8 to connect the round tube hole that bolt 10 passes through in centre bottom, and there is 8 connecting line of load cell at center
The long slot bore that the through-hole and connecting line that connector passes through pass through.Load cell 8 is placed on the center of lower seat board 7, and passes through
Connection bolt 10 is fixed.Inlay one piece of center nonmetallic slide plate 9 at the top of load cell 8, the part in bearing vertical force
Load cell 8 is transmitted to by center nonmetallic slide plate 9, the vertical pressure that center nonmetallic slide plate 9 is born is completed and measures.
By vertical rating test, 9 stress of center nonmetallic slide plate are determined（I.e. load cell 8 measures force value）It is integrally erected with bearing
To stress relationship, the whole vertical applied force situation of bearing is known eventually by counter push away of the stress of load cell 8, so as to make bearing
Has vertical force measuring function.
The vertical dynamometry ball shaped steel bearing of one-way movable of the present embodiment is under normal circumstances, it can be achieved that vertical carrying, the status of a sovereign
Sliding, the limiting of limiting direction and bearing vertical rotating function are shifted to, while is had always vertically during bearing whole service
Force measuring function.
Embodiment 3
Fixed vertical dynamometry ball shaped steel bearing is provided, as shown in Figure 5,6.It is mainly by upper base plate 1, upper stainless steel slide plate 2,
Upper nonmetallic slide plate 3, middle seat board 4, lower peripheral surface stainless steel slide plate 5, lower peripheral surface nonmetallic slide plate 6, lower seat board 7 are oriented to stainless steel
Slide plate 11 is oriented to nonmetallic slide plate 12, load cell 8, center nonmetallic slide plate 9, connection bolt 10 grade components composition.The seat of honour
Contain flat frictional pair between plate 1 and middle seat board 4（Upper stainless steel slide plate 2 and upper nonmetallic slide plate 3 form）；Middle seat board 4 is under
It is secondary containing spherical surface friction between seat board 7（Lower peripheral surface stainless steel slide plate 5, lower peripheral surface nonmetallic slide plate 6 and center nonmetallic slide plate 9
Composition）；Flat frictional pair and spherical surface friction pair collectively constitute the vertical pressure-bearing friction pair of bearing, have vertical carrying and vertical turn
Dynamic function.The basin ring of upper base plate and the boss of lower seat board are set in small―gap suture, are played bearing and are fixed in the i.e. horizontal direction of surrounding limiting
Function.
7 top of seat board is largely spherical surface under bearing, and a cylinder is dug out in center to place force-measuring sensing
Device 8 has affixed load cell 8 to connect the round tube hole that bolt 10 passes through in centre bottom, and there is 8 connecting line of load cell at center
The long slot bore that the through-hole and connecting line that connector passes through pass through.Load cell 8 is placed on the center of lower seat board 7, and passes through
Connection bolt 10 is fixed.Inlay one piece of center nonmetallic slide plate 9 at the top of load cell 8, the part in bearing vertical force
Load cell 8 is transmitted to by center nonmetallic slide plate 9, the vertical pressure that center nonmetallic slide plate 9 is born is completed and measures.
By vertical rating test, 9 stress of center nonmetallic slide plate are determined（I.e. load cell 8 measures force value）It is integrally erected with bearing
To stress relationship, the whole vertical applied force situation of bearing is known eventually by counter push away of the stress of load cell 8, so as to make bearing
Has vertical force measuring function.
The vertical dynamometry ball shaped steel bearing of fixation of the present embodiment is under normal circumstances, it can be achieved that vertical carrying, horizontal direction limit
Position and bearing vertical rotating function, while have vertical force measuring function always during bearing whole service.
Embodiment 4
The vertical force measurement type hyperboloid spheroidal bearer of shock absorption and insulation of multidirectional activity is provided, as shown in Figure 7,8.It is mainly by upper base plate
1, upper stainless steel slide plate 2, upper nonmetallic slide plate 3, middle seat board 4, lower peripheral surface stainless steel slide plate 5, lower peripheral surface nonmetallic slide plate 6, under
Seat board 7, load cell 8, center nonmetallic slide plate 9, connection bolt 10 grade components composition.Contain between upper base plate 1 and middle seat board 4
There is upper spherical surface friction pair（Upper stainless steel slide plate 2 and upper nonmetallic slide plate 3 form）；Contain lower ball between middle seat board 4 and lower seat board 7
Face friction is secondary（Lower peripheral surface stainless steel slide plate 5, lower peripheral surface nonmetallic slide plate 6 and center nonmetallic slide plate 9 form）, two upper and lower
The vertical pressure-bearing friction that spherical surface friction pair collectively constitutes bearing is secondary, have vertical carrying, longitudinal and transverse bridge to slide, vertical rotating work(
Energy.During earthquake, bearing is slid back and forth horizontally by bispherical synthesis realization, during reciprocatingly sliding, passes through slip
The frictional resistance dissipation seismic energy in face, and extending structure natural vibration period, reach damping and isolation effect；After earthquake, superstructure
From restoring force is reformed, reset bearing.
7 top of seat board is largely spherical surface under bearing, and a cylinder is dug out in center to place force-measuring sensing
Device 8 has affixed load cell 8 to connect the round tube hole that bolt 10 passes through in centre bottom, and there is 8 connecting line of load cell at center
The long slot bore that the through-hole and connecting line that connector passes through pass through.Load cell 8 is placed on the center of lower seat board 7, and passes through
Connection bolt 10 is fixed.Inlay one piece of center nonmetallic slide plate 9 at the top of load cell 8, the part in bearing vertical force
Load cell 8 is transmitted to by center nonmetallic slide plate 9, the vertical pressure that center nonmetallic slide plate 9 is born is completed and measures.
By vertical rating test, 9 stress of center nonmetallic slide plate are determined（I.e. load cell 8 measures force value）It is integrally erected with bearing
To stress relationship, the whole vertical applied force situation of bearing is known eventually by counter push away of the stress of load cell 8, so as to make bearing
Has vertical force measuring function.
The vertical force measurement type hyperboloid spheroidal bearer of shock absorption and insulation of multidirectional activity of the present embodiment is under normal circumstances, it can be achieved that perpendicular
To carrying, horizontal vertical bridge to, the slip of direction across bridge, bearing vertical rotating function；It is realized in earthquake automatic after subtracting shock insulation and shaking
Reset function；Has vertical force measuring function always during bearing whole service simultaneously.
Embodiment 5
The vertical force measurement type hyperboloid spheroidal bearer of shock absorption and insulation of one-way movable is provided, as shown in Fig. 9,10.It is mainly by the seat of honour
Plate 1, upper stainless steel slide plate 2, upper nonmetallic slide plate 3, middle seat board 4, lower peripheral surface stainless steel slide plate 5, lower peripheral surface nonmetallic slide plate 6,
Lower seat board 7 is oriented to stainless steel slide plate 11, is oriented to nonmetallic slide plate 12, limiting plate 13, load cell 8, center nonmetallic slide plate
9, connection bolt 10 grade components composition.It is secondary containing the friction of upper spherical surface between upper base plate 1 and middle seat board 4（Upper stainless steel slide plate 2 and upper
Nonmetallic slide plate 3 forms）；It is secondary containing lower peripheral surface friction between middle seat board 4 and lower seat board 7（Lower peripheral surface stainless steel slide plate 5, lower ball
Face nonmetallic slide plate 6 and center nonmetallic slide plate 9 form）, lower seat board 7 and upper base plate 1 have guiding to rub in limiting direction both sides
It is secondary（It is made of guiding stainless steel slide plate 11 and guiding nonmetallic slide plate 12）.Two spherical surface friction pairs collectively constitute the vertical of bearing
Pressure-bearing friction is secondary, has vertical carrying, main displacement direction is slided, vertical rotating function；Guiding friction pair plays bearing and is limiting
Direction limits and glide direction slides function.During earthquake, limiting plate is cut, and bearing is realized horizontal by bispherical synthesis
It reciprocatingly slides, during reciprocatingly sliding, by the frictional resistance dissipation seismic energy of sliding surface, and extending structure self-vibration is all
Phase reaches damping and isolation effect；After earthquake, superstructure resets bearing from restoring force is reformed.
7 top of seat board is largely spherical surface under bearing, and a cylinder is dug out in center to place force-measuring sensing
Device 8 has affixed load cell 8 to connect the round tube hole that bolt 10 passes through in centre bottom, and there is 8 connecting line of load cell at center
The long slot bore that the through-hole and connecting line that connector passes through pass through.Load cell 8 is placed on the center of lower seat board 7, and passes through
Connection bolt 10 is fixed.Inlay one piece of center nonmetallic slide plate 9 at the top of load cell 8, the part in bearing vertical force
Load cell 8 is transmitted to by center nonmetallic slide plate 9, the vertical pressure that center nonmetallic slide plate 9 is born is completed and measures.
By vertical rating test, 9 stress of center nonmetallic slide plate are determined（I.e. load cell 8 measures force value）It is integrally erected with bearing
To stress relationship, the whole vertical applied force situation of bearing is known eventually by counter push away of the stress of load cell 8, so as to make bearing
Has vertical force measuring function.
The vertical force measurement type hyperboloid spheroidal bearer of shock absorption and insulation of one-way movable of the present embodiment is under normal circumstances, it can be achieved that perpendicular
Sliding, the limiting of limiting direction and bearing vertical rotating function are shifted to carrying, the status of a sovereign；It is realized in earthquake after subtracting shock insulation and shaking certainly
Dynamic reset function；Has vertical force measuring function always during bearing whole service simultaneously.
Embodiment 6
Fixed vertical force measurement type hyperboloid spheroidal bearer of shock absorption and insulation is provided, as shown in Figure 11,12.Its mainly by upper base plate 1,
Upper stainless steel slide plate 2, upper nonmetallic slide plate 3, middle seat board 4, lower peripheral surface stainless steel slide plate 5, lower peripheral surface nonmetallic slide plate 6, lower seat
Plate 7, guiding stainless steel slide plate 11, guiding nonmetallic slide plate 12, limiting plate 13, load cell 8, center nonmetallic slide plate 9, even
10 grade components of connecting bolt form.It is secondary containing the friction of upper spherical surface between upper base plate 1 and middle seat board 4（Upper stainless steel slide plate 2 and upper non-gold
Belong to slide plate 3 to form）；It is secondary containing lower peripheral surface friction between middle seat board 4 and lower seat board 7（Lower peripheral surface stainless steel slide plate 5, lower peripheral surface are non-
Metal slider 6 and center nonmetallic slide plate 9 form）, lower seat board 7 and upper base plate 1 have guiding friction pair in limiting direction both sides（By
It is oriented to stainless steel slide plate 11 and is oriented to nonmetallic slide plate 12 and form）.Two spherical surface friction pairs collectively constitute the vertical pressure-bearing of bearing
Friction is secondary, has vertical carrying, vertical rotating function；Guiding friction pair plays bearing in limiting direction limit function.During earthquake,
Limiting plate is cut, and bearing is slid back and forth horizontally by bispherical synthesis realization, during reciprocatingly sliding, passes through slip
The frictional resistance dissipation seismic energy in face, and extending structure natural vibration period, reach damping and isolation effect；After earthquake, superstructure
From restoring force is reformed, reset bearing.
7 top of seat board is largely spherical surface under bearing, and a cylinder is dug out in center to place force-measuring sensing
Device 8 has affixed load cell 8 to connect the round tube hole that bolt 10 passes through in centre bottom, and there is 8 connecting line of load cell at center
The long slot bore that the through-hole and connecting line that connector passes through pass through.Load cell 8 is placed on the center of lower seat board 7, and passes through
Connection bolt 10 is fixed.Inlay one piece of center nonmetallic slide plate 9 at the top of load cell 8, the part in bearing vertical force
Load cell 8 is transmitted to by center nonmetallic slide plate 9, the vertical pressure that center nonmetallic slide plate 9 is born is completed and measures.
By vertical rating test, 9 stress of center nonmetallic slide plate are determined（I.e. load cell 8 measures force value）It is integrally erected with bearing
To stress relationship, the whole vertical applied force situation of bearing is known eventually by counter push away of the stress of load cell 8, so as to make bearing
Has vertical force measuring function.
The vertical force measurement type hyperboloid spheroidal bearer of shock absorption and insulation of fixation of the present embodiment is under normal circumstances, it can be achieved that vertically hold
It carries, horizontal direction limits and bearing vertical rotating function；Auto-reset function after subtracting shock insulation and shaking is realized in earthquake；It is propping up simultaneously
Has vertical force measuring function always during seat whole service.
Claims (4)
1. a kind of force measuring method of vertical force measurement type bridge pad, which includes setting successively from top to bottom
The upper base plate put（1）, middle seat board（4）With lower seat board（7）, in middle seat board（4）Lower surface be equipped with lower peripheral surface stainless steel slide plate
（5）, lower seat board（7）Upper surface be equipped with lower peripheral surface nonmetallic slide plate（6）, lower peripheral surface stainless steel slide plate（5）With the non-gold of lower peripheral surface
Belong to slide plate（6）Form spherical pivoting friction pair, it is characterised in that：In lower seat board（7）Center and lower peripheral surface nonmetallic slide plate（6）
Center offer for vertically place load cell（8）Installation cavity, load cell（8）By connecting bolt（10）Gu
It is scheduled in installation cavity, load cell（8）The dynamometry stress point center secondary with friction overlap；
The method that the vertical applied force of bridge pad is measured using above-mentioned vertical force measurement type bridge pad is：
Step 1: assembling verification：Bearing assembling is finished, is placed on testing machine, bearing center and testing machine center pair
Standard, finder charge is 1.5 times of bearing vertical bearing capacity, after being loaded onto the 1% of design bearing capacity, checks load cell stress,
Confirm errorless rear progress precompressed；
Step 2: precompressed：Bearing Vertical Design bearing capacity is loaded with the speed of continuous uniform, 3 times repeatedly；
Step 3: formal loading：Finder charge is uniformly divided into 10 grades by zero, during experiment using the 1% of design bearing capacity as
Initial load, then multistage loadings, record testing machine vertical load and load cell load after every grade of load voltage stabilizing 2 minutes,
Until finder charge, voltage stabilizing unload after 3 minutes, loading procedure is carried out continuously 3 times；
Step 4: it draws：Load cell load takes the arithmetic mean of instantaneous value of every 3 sensor readings of level-one, draws sensor lotus
Load-testing machine load curve, and the Fitting Calculation is done, determine the relational expression of testing machine load and sensor load；
Step 5: it compares：Bearing in actual use, obtains the reading of load cell in real time, the pass demarcated by step 4
It is formula, judges the whole vertical applied force situation of bearing.
2. a kind of force measuring method of vertical force measurement type bridge pad as described in claim 1, it is characterised in that：The dynamometry
Sensor（8）Top installation center nonmetallic slide plate（9）, center nonmetallic slide plate（9）With middle seat board（4）The lower peripheral surface pasted is not
Become rusty steel slide plate（5）Lower surface fit, center nonmetallic slide plate（9）With lower peripheral surface nonmetallic slide plate（6）Between there are gaps.
3. a kind of force measuring method of vertical force measurement type bridge pad as described in claim 1, it is characterised in that：The installation
Chamber is cylindrical cavity.
4. a kind of force measuring method of vertical force measurement type bridge pad as described in claim 1, it is characterised in that：The lower seat
Plate（7）Inside offer the long slot bore that load cell connecting line passes through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776009.0A CN106192739B (en) | 2016-08-30 | 2016-08-30 | A kind of vertical force measurement type bridge pad and its force measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776009.0A CN106192739B (en) | 2016-08-30 | 2016-08-30 | A kind of vertical force measurement type bridge pad and its force measuring method |
Publications (2)
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| CN112146803A (en) * | 2020-10-20 | 2020-12-29 | 中国铁路设计集团有限公司 | Force measuring method for high-precision vertical force measurement and transverse movement and fixed spherical support |
| CN112284592A (en) * | 2020-10-20 | 2021-01-29 | 中国铁路设计集团有限公司 | Force measuring method for high-precision vertical force measurement longitudinal and multidirectional movable spherical support |
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| CN108168672B (en) * | 2017-12-21 | 2019-09-03 | 西安蒜泥电子科技有限责任公司 | A kind of weighing structure, human body three-dimensional scanning device |
| CN108570925B (en) * | 2018-06-19 | 2023-09-05 | 丰泽智能装备股份有限公司 | Separated intelligent spherical force measuring support system device and assembling method |
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