CN208043562U - One kind can move freely formula beams of concrete counter-force loading frame - Google Patents
One kind can move freely formula beams of concrete counter-force loading frame Download PDFInfo
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- CN208043562U CN208043562U CN201820632384.2U CN201820632384U CN208043562U CN 208043562 U CN208043562 U CN 208043562U CN 201820632384 U CN201820632384 U CN 201820632384U CN 208043562 U CN208043562 U CN 208043562U
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Abstract
The utility model discloses one kind and can move freely formula beams of concrete counter-force loading frame, including counter-force loading frame bottom plate, counter-force loading frame plate upper surface is equipped with spirit level, two distribution girder steel columns are symmetrically fixed in the middle part of counter-force loading frame bottom plate, it is cased with holder on distribution girder steel column, being horizontally disposed on holder has distribution girder steel, and electric hydraulic lifting jack and pressure sensor are equipped with successively below distribution girder steel；Counter-force loading frame bottom plate both ends are separately installed with a load column, it is fixedly connected with load bottom end rail at the top of load column, load bottom end rail is connect by loading montant with load upper beam, it is connected by cross-tie between two load upper beams, test beam setting is under load between crossbeam and load upper beam, it rises beam column to be fixed on the outside of load upper beam, on two displacement monitoring montants that displacement monitoring cross bar is fixed on the base；The utility model facilitate beams of concrete crack tendency observation and the measurement of fracture width, it can be achieved that moving freely for counter-force loading frame.
Description
Technical field
The utility model is related to civil engineering experimental rig technical fields, can move freely formula concrete in particular to one kind
Beam counter-force loading frame.
Background technology
In field of civil engineering, the Long-term mechanical behavior of concrete component has become the emphasis of Structural Engineering research at present
Content, and beams of concrete is the main supporting member of structure, to beams of concrete carry out long-duration static load test be it is a kind of more
Effective technological means, thus in civil engineering experiment, the static loading of beams of concrete belongs to basic necessity experiment.
In being tested at present to the Long-term mechanical behavior of beams of concrete, mostly using accumulation load method, this method not only needs
A large amount of weight and manpower, and weight increases the danger of static test there may be toppling and destabilization problems, meanwhile,
Loaded value and loading velocity during static test are not easy to control, and the test error of generation is larger.And existing load dress
The larger fixed overall structure of generally floor space is set, keeps trial stretch limited because mobile inconvenient；It may be only available for list
The load test of one size beams of concrete, utilization rate are relatively low；And it to bend to bow more when observing survey to component surface crack
It is inconvenient；It is less useful for the measurement of beams of concrete fracture width, be easy to cause test error；By place limit can not carry out it is specific
Environment（Such as constant temperature, Frozen-thawed cycled）Under experiment, there are certain difficulty and inconvenience for entire experiment, can not popularize.
In conclusion a kind of preliminary preparation that can simplify beams of concrete experiment of design, facilitates test operation, improves
Control accuracy when load, can move freely, and reduce the requirement to place range, disclosure satisfy that the beams of concrete examination of sizes
It tests, facilitates the observation and measurement in crack, installation, convenient disassembly and conducive to universal beams of concrete experimental rig there is reality to anticipate
Justice.
Invention content
Purpose of the utility model is to overcome the above-mentioned shortcomings and provide one kind can move freely the load of formula beams of concrete counter-force
Frame, to solve the problems, such as to propose in background technology.
The utility model is in order to solve the above technical problems, used technical solution is：One kind can move freely formula coagulation
Native beam counter-force loading frame, including counter-force loading frame bottom plate, the counter-force loading frame plate upper surface are equipped with spirit level, two pieces points
It is symmetrically fixed in the middle part of counter-force loading frame bottom plate with girder steel column, is cased with holder on the distribution girder steel column, on the holder
It is horizontally disposed to have distribution girder steel, it is equipped with electric hydraulic lifting jack and pressure sensor successively below the distribution girder steel；It is described anti-
Power loading frame bottom plate both ends are separately installed with a load column, are fixedly connected with load bottom end rail at the top of the load column,
The load bottom end rail is connect by loading montant with load upper beam, is connected by cross-tie between two load upper beams
It connects, test beam setting between crossbeam and load upper beam, rises beam column and be fixed on the outside of load upper beam under load, displacement monitoring
On two displacement monitoring montants that cross bar is fixed on the base.
Preferably, the counter-force loading frame bottom plate both ends are equipped with sliding slot, are installed and are loaded by fixed screw on each sliding slot
Column, the fixed screw lower section are lined with load column backing plate；The load bottom end rail is circular ring structure, and inside is cased with power transmission
Axis, load montant are sleeved on force transmission shaft and are fixed by shaft backing plate and spindle nut, and load upper beam is by loading upper beam
Nut is fixed with load montant, is risen beam column and is fixed on the outside of load upper beam by sliding slot, displacement monitoring cross bar is solid by nut
It is scheduled on two displacement monitoring montants on pedestal；There are two directional wheel and two ten thousand for the counter-force loading frame bottom base plate installation
To wheel, the bearing that contacts to earth is mounted on the outside of the counter-force loading frame bottom base plate.
Preferably, spill sliding slot is provided on the outside of the load upper beam, the load upper beam is equipped with scale.
Preferably, the load montant upper end be screwed cylinder, and with load upper beam nut on screw thread
Mating, the load upper beam is provided at both ends with circular hole.
Preferably, U-shaped structure is integrally formed with clamping plate on the inside of clamping plate on the outside of pull rod and pull rod in the cross-tie.
Preferably, the distribution girder steel column lower end is equipped with the screw thread mating with the threaded hole of counter-force loading frame bottom plate, institute
State groove there are two being symmetrical arranged in the middle part of distribution girder steel column.
Preferably, the distribution girder steel upper surface is trench structure, and interior well width and sliding hinged-support and fixation are hinged
The length of seat is identical.
The beneficial effects of the utility model：Utility model device is suitable for the experiment of beams of concrete class component, Neng Gouman
The needs of foot difference size members；Loading system has used electric hydraulic lifting jack, can be accurate while reducing manual labor
Load and can steady load to a certain extent, load will not be caused to be obviously reduced because of component cracking or creep due to；The device bottom
Portion is equipped with directional wheel and universal wheel, and moving freely for counter-force loading frame may be implemented in two groups of good fortune horse wheels, even if relative narrower is real
Testing room door can also pass freely through in the case of not by other handling appliances, greatly facilitate the place of counter-force loading frame
Arrangement；Designed liter beam column can realize that test beam is not deviated in jacking or so, achieve the purpose that accurate positioning；It is horizontal in load
Beam can carry out fine tuning up and down by nut to crossbeam position, realize that test beam is contacted with load the seamless of upper beam；U-shaped pull rod
The operable space above test beam has been widened in design, facilitates the observation and measurement in back crack during experiment；Setting exists
Sliding slot on pedestal can easily adjust the spacing of load column, to adapt to the beams of concrete test specimen of different length；It is most of
Component is detachable, and it is convenient to replace, and simple in structure, quick and easy for installation, stability is preferable, reduces manual labor, improves examination
The reliability and accuracy tested.
Description of the drawings
Fig. 1 is utility model device structural schematic diagram；
Fig. 2 is utility model device positive structure diagram；
Fig. 3 is utility model device side structure schematic view；
Fig. 4 is utility model device overlooking structure diagram；
Fig. 5 is utility model device present invention looks up structural representation；
In figure：Counter-force loading frame bottom plate 1, directional wheel 2, universal wheel 3, the bearing 4 that contacts to earth, spirit level 5, distribution girder steel column 6,
Holder 7, distribution girder steel 8, electric hydraulic lifting jack 9, pressure sensor 10, load column backing plate 11, fixed screw 12, load are vertical
Column 13, load bottom end rail 14, shaft backing plate 15, spindle nut 16, load montant 17, load upper beam 18, load upper beam spiral shell
Clamping plate 20, pull rod inside 21 cross-tie 22 of clamping plate, test beam 23, liter beam column 24, displacement monitoring cross bar on the outside of mother 19, pull rod
25, nut 26, displacement monitoring montant 27, sliding hinged-support 28, fixed-hinged support 29, backing plate 30, force transmission shaft 31, jack control
Device 32, pressure sensor Acquisition Instrument 33.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Fig. 1 to 5, one kind can move freely formula beams of concrete counter-force loading frame, including counter-force loading frame bottom plate 1,
1 upper surface of counter-force loading frame bottom plate is equipped with spirit level 5, and two distribution girder steel columns 6 are symmetrically fixed on counter-force loading frame
In the middle part of bottom plate 1, holder 7 is cased on the distribution girder steel column 6, being horizontally disposed on the holder 7 has distribution girder steel 8, described point
It is equipped with electric hydraulic lifting jack 9 and pressure sensor 10 successively with 8 lower section of girder steel；1 both ends of the counter-force loading frame bottom plate difference
A piece load column 13 is installed, 13 top of the load column is fixedly connected with load bottom end rail 14, the load bottom end rail
14 are connect by loading montant 17 with load upper beam 18, are connected, are tried by cross-tie 22 between two load upper beams 18
The setting of beam 23 is tested under load between crossbeam 14 and load upper beam 18, liter beam column 24 is fixed on 18 outside of load upper beam, position
It moves on two displacement monitoring montants 27 that monitoring cross bar 25 is fixed on the base.
Preferably, 1 both ends of counter-force loading frame bottom plate are equipped with sliding slot, are added by the installation of fixed screw 12 on each sliding slot
Column 13 is carried, 12 lower section of the fixed screw is lined with load column backing plate 11；The load bottom end rail 14 is circular ring structure, internal
It is cased with force transmission shaft 31, load montant 17 is sleeved on force transmission shaft 31 and is fixed by shaft backing plate 15 and spindle nut 16, in load
Crossbeam 18 is fixed by loading upper beam nut 19 with load montant 17, is risen beam column 24 and is fixed on load upper beam 18 by sliding slot
Outside, on two displacement monitoring montants 27 that displacement monitoring cross bar 25 is fixed on the base by nut 26；The counter-force load
There are two directional wheel 2 and two universal wheels 3,1 bottom outside of counter-force loading frame bottom plate is mounted on the installation of 1 bottom of frame bottom plate
Contact to earth bearing 4.
Preferably, 18 outside of the load upper beam is provided with spill sliding slot, and the load upper beam 18 is equipped with scale.
The scale for rising beam column 24 and loading on upper beam 18 can guarantee that beams of concrete is not deflected when rising or so, reach accurate positioning
Purpose.
Preferably, 17 upper end of load montant be screwed cylinder, and with load upper beam nut 19 on
Screw thread is mating, and the load upper beam 18 is provided at both ends with circular hole.This design facilitates the fine tuning up and down of load upper beam 18, can
To realize that test beam 23 is contacted with load the seamless of upper beam 18.
Preferably, U-shaped structure is integrally formed with clamping plate 21 on the inside of clamping plate 20 on the outside of pull rod and pull rod in the cross-tie 22.
The operable space of 23 top of test beam has been widened in this design, facilitates the observation and measurement in back crack during experiment.
Preferably, 6 lower end of distribution girder steel column is equipped with the screw thread mating with the threaded hole of counter-force loading frame bottom plate 1,
6 middle part of the distribution girder steel column is arranged symmetrically, and there are two grooves.It is convenient for the use of rotation tool in this way.
Preferably, 8 upper surface of distribution girder steel is trench structure, interior well width and sliding hinged-support 28 and fixed hinge
The length of bearing 29 is identical.
The 4 good fortune horses wheel for being preferably located at 1 bottom of counter-force loading frame bottom plate is respectively that one group of directional wheel 2 and one group are universal
Wheel 3, and the good fortune horse wheel of 1 short side direction of counter-force loading frame bottom plate is one group, two groups of good fortune horses wheel may be implemented counter-force loading frame from
By moving, passed freely through in the case of not by other handling appliances when the door relative narrower in laboratory, pole
The earth facilitates the Ground arrangement of counter-force loading frame.
The present embodiment operation principle is as follows：
The present apparatus is suitable for the experiment of beams of concrete class component, disclosure satisfy that the needs of different size members；Loading system
Used electric hydraulic lifting jack, can accurately be loaded while reducing manual labor and can steady load to a certain extent,
Load will not be caused to be obviously reduced due to component cracks or creeps；The bottom of device is equipped with directional wheel and universal wheel, two groups of good fortune
Moving freely for counter-force loading frame may be implemented in horse wheel, is not being set by other handlings the door of relative narrower laboratory
It is passed freely through in the case of standby, greatly facilitates the Ground arrangement of counter-force loading frame；Designed liter beam column can realize experiment
Beam is not deviated in jacking or so, achievees the purpose that accurate positioning；Load upper beam can carry out crossbeam position by nut
Lower fine tuning realizes that test beam is contacted with load the seamless of upper beam；The design of U-shaped pull rod has been widened operable above test beam
Space facilitates the observation and measurement in back crack during experiment；The sliding slot being set on the base, which can be adjusted easily, to be added
The spacing for carrying column, to adapt to the beams of concrete test specimen of different length；Most of component is detachable, and it is convenient to replace, simple in structure,
Quick and easy for installation, stability is preferable, reduces manual labor, improves the reliability and accuracy of experiment.
The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model
System, the features in the embodiments and the embodiments of the present application in the absence of conflict, mutually can be combined arbitrarily.This practicality is new
Technical characteristic in the technical solution that the protection domain of type should be recorded with claim, including the technical solution of claim record
Equivalents are protection domain.Equivalent replacement i.e. within this range is improved, also the scope of protection of the utility model it
It is interior.
Claims (7)
1. one kind can move freely formula beams of concrete counter-force loading frame, including counter-force loading frame bottom plate（1）, it is characterised in that：Institute
State counter-force loading frame bottom plate（1）Upper surface is equipped with spirit level（5）, two distribution girder steel columns（6）Symmetrically counter-force is fixed on to add
Carrier bottom plate（1）Middle part, the distribution girder steel column（6）On be cased with holder（7）, the holder（7）Upper be horizontally disposed with has distribution
Girder steel（8）, the distribution girder steel（8）Lower section is equipped with electric hydraulic lifting jack successively（9）And pressure sensor（10）；The counter-force
Loading frame bottom plate（1）Both ends are separately installed with a load column（13）, the load column（13）Top and load bottom end rail
（14）It is fixedly connected, the load bottom end rail（14）By loading montant（17）With load upper beam（18）Connection, two loads
Upper beam（18）Between pass through cross-tie（22）Connection, test beam（23）Crossbeam under load is set（14）With load upper beam
（18）Between, rise beam column（24）It is fixed on load upper beam（18）Outside, displacement monitoring cross bar（25）Two be fixed on the base
Root displacement monitoring montant（27）On.
2. one kind according to claim 1 can move freely formula beams of concrete counter-force loading frame, it is characterised in that：It is described anti-
Power loading frame bottom plate（1）Both ends are equipped with sliding slot, pass through fixed screw on each sliding slot（12）Installation load column（13）, described solid
Determine screw（12）Lower section is lined with load column backing plate（11）；The load bottom end rail（14）For circular ring structure, inside is cased with power transmission
Axis（31）, load montant（17）It is sleeved on force transmission shaft（31）Above and pass through shaft backing plate（15）And spindle nut（16）It is fixed, load
Upper beam（18）By loading upper beam nut（19）With load montant（17）It is fixed, rise beam column（24）It is fixed on and is added by sliding slot
Carry upper beam（18）Outside, displacement monitoring cross bar（25）Pass through nut（26）Two displacement monitoring montants being fixed on the base
（27）On；The counter-force loading frame bottom plate（1）There are two directional wheels for bottom installation（2）With two universal wheels（3）, the counter-force adds
Carrier bottom plate（1）Bottom outside is mounted on the bearing that contacts to earth（4）.
3. one kind according to claim 1 can move freely formula beams of concrete counter-force loading frame, it is characterised in that：It is described to add
Carry upper beam（18）Outside is provided with spill sliding slot, the load upper beam（18）It is equipped with scale.
4. one kind according to claim 1 can move freely formula beams of concrete counter-force loading frame, it is characterised in that：It is described to add
Carry montant（17）Upper end be screwed cylinder, and with load upper beam nut（19）On screw thread it is mating, the load
Upper beam（18）It is provided at both ends with circular hole.
5. one kind according to claim 1 can move freely formula beams of concrete counter-force loading frame, it is characterised in that：The cross
To pull rod（22）With clamping plate on the outside of pull rod（20）With clamping plate on the inside of pull rod（21）U-shaped structure is integrally formed.
6. one kind according to claim 1 can move freely formula beams of concrete counter-force loading frame, it is characterised in that：Described point
With girder steel column（6）Lower end is equipped with and counter-force loading frame bottom plate（1）The mating screw thread of threaded hole, the distribution girder steel column
（6）Middle part is arranged symmetrically, and there are two grooves.
7. one kind according to claim 1 can move freely formula beams of concrete counter-force loading frame, it is characterised in that：Described point
With girder steel（8）Upper surface is trench structure, interior well width and sliding hinged-support（28）And fixed-hinged support（29）Length phase
Together.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820632384.2U CN208043562U (en) | 2018-04-28 | 2018-04-28 | One kind can move freely formula beams of concrete counter-force loading frame |
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| CN201820632384.2U CN208043562U (en) | 2018-04-28 | 2018-04-28 | One kind can move freely formula beams of concrete counter-force loading frame |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540650A (en) * | 2018-12-05 | 2019-03-29 | 河海大学 | A kind of modular multi-function self-balancing reaction frame loading device and its application method |
| CN110412206A (en) * | 2019-07-19 | 2019-11-05 | 中国矿业大学 | Fire test packaged type space self-balancing reaction frame system and its application method |
| CN110646295A (en) * | 2019-10-25 | 2020-01-03 | 中铁九局集团工程检测试验有限公司 | Anti bearing capacity detection device that splits of detachable RPC apron |
| CN113666246A (en) * | 2021-09-15 | 2021-11-19 | 江西恒信检测集团有限公司 | Multifunctional composite suspension type reference beam structure |
-
2018
- 2018-04-28 CN CN201820632384.2U patent/CN208043562U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540650A (en) * | 2018-12-05 | 2019-03-29 | 河海大学 | A kind of modular multi-function self-balancing reaction frame loading device and its application method |
| CN109540650B (en) * | 2018-12-05 | 2021-05-11 | 河海大学 | Modular multifunctional self-balancing reaction frame loading device and application method thereof |
| CN110412206A (en) * | 2019-07-19 | 2019-11-05 | 中国矿业大学 | Fire test packaged type space self-balancing reaction frame system and its application method |
| CN110412206B (en) * | 2019-07-19 | 2020-07-17 | 中国矿业大学 | Movable space self-balancing reaction frame system for fire experiment and use method thereof |
| CN110646295A (en) * | 2019-10-25 | 2020-01-03 | 中铁九局集团工程检测试验有限公司 | Anti bearing capacity detection device that splits of detachable RPC apron |
| CN113666246A (en) * | 2021-09-15 | 2021-11-19 | 江西恒信检测集团有限公司 | Multifunctional composite suspension type reference beam structure |
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