CN107966357A - One kind is without base reinforced column pseudo static testing device and method - Google Patents

One kind is without base reinforced column pseudo static testing device and method Download PDF

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Publication number
CN107966357A
CN107966357A CN201711309024.5A CN201711309024A CN107966357A CN 107966357 A CN107966357 A CN 107966357A CN 201711309024 A CN201711309024 A CN 201711309024A CN 107966357 A CN107966357 A CN 107966357A
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column
jack
reinforced column
rigid connection
reinforced
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CN107966357B (en
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于晓辉
代旷宇
吕大刚
周洲
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Harbin Institute of Technology
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Harbin Institute of Technology
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
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  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The present invention relates to the technical field of structure experiment device and method, one kind is disclosed without base reinforced column pseudo static testing device, reinforced column and rigid connection fixing device including experiment, the lower end of the reinforced column are not provided with base and formed with rigid connection portion;The rigid connection fixing device is fixedly connected on ground beam, it includes jack mechanism, and the jack mechanism is laterally pressed against the rigid connection portion, the lower end of the reinforced column is formed rigid connection state.Such structure setting causes reinforced concrete square columns test specimen to pour conveniently, eliminates the stages such as column base stamp fabrication, fabrication of reinforcing cage, concreting, maintenance, saves reinforcing bar and concrete material dosage;Simultaneously as it is that armored concrete is positioned using jack, it is possible to reuse, and different size of column component can be adapted to, greatly saved experimental cost.

Description

One kind is without base reinforced column pseudo static testing device and method
Technical field
The present invention relates to the technical field of structure experiment device and method, and more particularly to one kind is without base reinforced concrete Earth pillar pseudo static testing device and method.
Background technology
China's earthquake in recent years is multiple, and the building collapse triggered by earthquake causes China the economic loss of flood tide And serious threat the life security of the people.For reaction of the research structure under geological process, corresponding experimental study must can not It is few, and in earthquake-resistant structure experiment, lateral resisting structure is often simulated by earthquake with pseudo-static experimental (horizontal low-cycle loading) The situation of effect.
At present, when carrying out reinforced column pseudo-static experimental, volume and matter need to be poured in armored concrete column bottom Amount is much larger than the base of test specimen in itself, to meet test component junction for this hypothesis that is rigidly connected.As structural test is advised The gradual expansion of mould, conventional reduced scale test specimen have been unable to meet engineering demand, and more and more full size column test specimens be used to test In research.And since full-scale specimen volume and quality are far above reduced scale test specimen, meet that it tests the base volume and quality of demand Also need to be multiplied.
This has resulted in three problems, first, reinforced column test specimen volume is excessive with quality, makes component and maintenance Required site area is excessive;Second, increase the difficulty that this process of laboratory is transported to by conserving place;Third, armored concrete Column base makes needs far more than the reinforcing bar and concrete of column test specimen in itself is made, and causes substantial amounts of waste of material.
Quintic system examination can be carried out to reinforced column test specimen by being not required to making reinforced concrete footing therefore, it is necessary to one kind The method tested and corresponding experimental rig.This is for improving civil engineering structure experimental study method and reducing reinforced column The complexity of experiment has particularly important meaning.
The content of the invention
It is an object of the invention to provide one kind without base reinforced column pseudo static testing device and method, it is intended to solve Certainly the seat concrete irrigation amount of concrete column is big in the prior art, manufacture is of high cost, wastes the problem of serious.
The present invention is achieved in that a kind of without base reinforced column pseudo static testing device, including experiment Reinforced column and rigid connection fixing device, the lower end of the reinforced column are not provided with base and formed with rigid connection portion; The rigid connection fixing device is fixedly connected on ground beam, it includes jack mechanism, and the jack mechanism laterally compresses residence Rigid connection portion is stated, the lower end of the reinforced column is formed rigid connection state.
Further, the reinforced column is square column, and the jack mechanism includes four jack, described in four Jack compresses the four sides in the rigid connection portion towards four different directions respectively.
Further, the surface in the rigid connection portion is formed with double wedge, and compressed with the rigid connection portion the one of the jack End is provided with the tooth plate of steel, and the tooth plate is connected with the double wedge, the jack by the tooth plate is compressed from And secure the above reinforced column.
Further, the rigid connection portion is formed with the two dentation metopes vertical with the normal direction of counter force wall metope, institute Rigid connection portion is stated only on two dentation metopes formed with the double wedge, and only compress the dentation metope two are described very heavy The end set on top has the tooth plate.
Further, the rigid connection fixing device further includes fixed case, and the fixed case includes horizontally disposed rectangular Bottom plate and enclosing be arranged in the bottom plate four edge placements the side plate arranged vertically, on each side plate respectively A jack is connected with, the reinforced column is arranged on the centre position of the fixed case, is set on the bottom plate Multiple limit holes are equipped with, solid steel tube is inserted with the limit hole, the solid steel tube is used to prop up the tooth plate so that institute That states that tooth plate can be better compresses the reinforced column.
Particularly, present invention also offers, without base reinforced column pseudo-static experimental method, needed with one kind setting During the reinforced column tested, the base of the reinforced column is not poured, and filled using jack Put the surrounding from the bottom of the armored concrete device to be compressed, the jack is supported with the armored concrete column bottom Pressure is so that the bottom of the reinforced column is in rigid connection state.
Further, the lower end of the reinforced column sets double wedge, and the end set of the jack has tooth plate, institute State tooth plate to be engaged with the dentalation, the jack is by compressing the tooth plate so as to fix the reinforced concrete The bottom of earth pillar.
Further, fixed case has been further included, the fixed case includes horizontally disposed rectangular bottom plate and enclosing The side plate arranged vertically of four edge placements of the bottom plate is arranged in, is connected on each side plate described in one Jack, the reinforced column are arranged on the centre position of the fixed case, multiple limit holes are provided with the bottom plate, Solid steel tube is inserted with the limit hole, the solid steel tube is used to prop up the tooth plate so that the tooth plate can be more Good compresses the reinforced column.
Compared with prior art, one kind provided by the invention is without base reinforced column pseudo static testing device and side Method, reinforced concrete square columns test specimen pour conveniently, eliminate column base stamp fabrication, fabrication of reinforcing cage, concreting, maintenance , reinforcing bar and concrete material dosage is saved in the stage;Simultaneously as it is that armored concrete is determined using jack Position, it is possible to reuse, and different size of column component can be adapted to, greatly saved experimental cost.
Brief description of the drawings
Fig. 1 is the main view signal of base reinforced column pseudo static testing device entirety provided in an embodiment of the present invention Figure;
Fig. 2 is the schematic top plan view of base reinforced column pseudo static testing device provided in an embodiment of the present invention;
Fig. 3 is the partial side schematic diagram at tooth plate position provided in an embodiment of the present invention;
Fig. 4 is the schematic front view of reinforced column provided in an embodiment of the present invention.
Reinforced column -10, double wedge -11, jack -20, tooth plate -21, solid steel tube -22, bolt -30, bottom plate - 41, side plate -42, limit hole -411, ground beam -50, reaction beam -60, vertical pressure device -70, steel strand -80, horizontal actuator - 90, counter force wall -100
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
The same or similar label correspond to the same or similar components in the attached drawing of the present embodiment;In description of the invention In, it is to be understood that if having the instructions such as term " on ", " under ", "left", "right" orientation or position relationship for based on attached drawing institute The orientation or position relationship shown, is for only for ease of the description present invention and simplifies description, rather than instruction or the dress for implying meaning Put or element must have specific orientation, with specific azimuth configuration and operation, therefore described in attached drawing position relationship use Language is only for illustration, it is impossible to the limitation to this patent is interpreted as, for the ordinary skill in the art, can be with The concrete meaning of above-mentioned term is understood as the case may be.
It is described in detail below in conjunction with realization of the specific embodiment to the present invention.
With reference to shown in Fig. 1-3, preferred embodiment is provided for the present invention.
Embodiment one
The main process of 10 pseudo static testing device of reinforced column is, reinforced column 10 to be tested is vertical Arrangement, carries out rigid connection to its bottom and fixes, by be fixed on the vertical pressure device 70 on reaction beam 60 produce vertical pressure should Power, 80 devices are cut with scissors by steel, apply evenly load to 10 test specimen of reinforced column according to experimental design axial compression ratio.Reinforcing bar is mixed Solidifying earth pillar 10 is connected on laboratory counter force wall 100 by actuator 90, and actuator applies reinforced column 10 horizontal past Multiple power makes 10 capital of reinforced column produce displacement cycle.By accordingly measuring data needed for instrument record.
Its bottom rigid connection is realized relative to traditional base in the bottom of reinforced column 10 setting bulky Predetermined condition, present embodiments provide a kind of solution of no base, it include the reinforced column 10 of experiment with And rigid connection fixing device, the lower end of reinforced column 10 are not provided with base and formed with rigid connection portion;Rigid connection fixing device is fixed It is connected on ground beam, specifically, rigid connection fixing device can be fixedly connected on ground beam by the grade component of bolt 30, rigid connection is fixed Device includes 20 mechanism of jack, and 20 mechanism of jack is laterally pressed against rigid connection portion, forms the lower end of reinforced column 10 Rigid connection state.
For traditional structure, one kind provided in this embodiment is without 10 pseudo-static experimental of base reinforced column Device, reinforced concrete square columns test specimen pour conveniently, eliminate column base stamp fabrication, fabrication of reinforcing cage, concreting, support In the stages such as shield, save reinforcing bar and concrete material dosage;Simultaneously as it is that armored concrete is carried out using jack 20 Positioning, it is possible to reuse, and different size of column component can be adapted to, greatly saved experimental cost.
Under normal circumstances, for fixing the way of bottom using jack 20, cylinder is poorly suitable in a way, Since it is desired that the special arc backing plate for adapting to body diameter, so, in the present embodiment, reinforced column 10 is arranged to as side Column, 20 mechanism of jack include four jack 20, and four jack 20 compress rigid connection portion towards four different directions respectively On four sides, such that the positioning to reinforced column 10 is more stablized.
Particularly, in the present embodiment, the surface in rigid connection portion is formed with double wedge 11, and jack 20 is compressed with rigid connection portion One end is provided with the tooth plate 21 of steel, and tooth plate 21 is connected with double wedge 11, and jack 20 is by compressing tooth plate 21 so as to solid Surely reinforced column 10 is lived, this structure has better for directly the mode of operation that plane compresses is carried out Stability so that the bottom of reinforced column 10 can be more nearly rigid connection state.
Due in actual experimentation, only having a face counter force wall, the stress data in a direction is only tested, so, Just double wedge 11 need not be respectively provided with to each face, so, in the present embodiment, rigid connection portion is formed with the method with counter force wall metope Two vertical dentation metopes of line direction, rigid connection portion, formed with double wedge 11, and only compress dentation metope only on two dentation metopes The end sets of two jack 20 have a tooth plate 21, such structure can greatly reduce It is not necessary to manufacture cost.
In order to make rigid connection fixing device more show globality, in the present embodiment, rigid connection fixing device further includes Fixed case, fixed case are arranged in four edge placements of bottom plate 41 including horizontally disposed rectangular bottom plate 41 and enclosing The side plate 42 arranged vertically, is connected to a jack 20 on each side plate 42, reinforced column 10 is arranged on fixation The centre position of case.Also, in order to further strengthen fixed effect, multiple limit holes 411, limit hole are provided with bottom plate 41 Solid steel tube 22 is inserted with 411, solid steel tube 22 is used to prop up tooth plate 21 so that what tooth plate 21 can be better compresses steel Reinforced concrete column 10, i.e., after the bottom of reinforced column 10 is pressed against by jack 20, increase also behind tooth plate 21 One solid steel tube 22 blocks tooth plate 21, and solid steel tube 22 is then fixed using the limit hole 411 on bottom plate 41.
When setting the reinforced column 10 for needing to be tested, the base of reinforced column 10 is not poured Build, and compressed using the surrounding of jack 20 device from the bottom of armored concrete device, jack 20 and reinforced concrete 10 bottom of earth pillar compresses so that the bottom of reinforced column 10 is in rigid connection state.
Embodiment two
The main process of traditional 10 pseudo static testing device of reinforced column is, by reinforced column to be tested 10 vertical arrangements, carry out rigid connection to its bottom and fix, and vertical pressure is produced by being fixed on the vertical pressure device on reaction beam Stress, by steel hinge device, applies evenly load according to experimental design axial compression ratio to 10 test specimen of reinforced column.Reinforcing bar is mixed Solidifying earth pillar 10 is connected on the counter force wall of laboratory by actuator, and actuator applies horizontal reciprocating power to reinforced column 10 to be made 10 capital of reinforced column produces displacement cycle.By accordingly measuring data needed for instrument record.
Set the infrastructure cost of base too high in the bottom of reinforced column 10, waste is too serious, and the present embodiment then carries The following method that rigid connection setting preferably more is carried out to the bottom of reinforced column 10 is supplied, one kind is mixed without base reinforcing bar 10 pseudo-static experimental method of solidifying earth pillar, when setting the reinforced column 10 for needing to be tested, not to reinforced column 10 base is poured, and is compressed using the surrounding of jack 20 device from the bottom of armored concrete device, very heavy Top 20 is compressed so that the bottom of reinforced column 10 is in rigid connection state with 10 bottom of reinforced column.
The reinforced concrete square columns test specimen of this method pours conveniently, eliminates column base stamp fabrication, fabrication of reinforcing cage, mixes Solidifying soil such as pours, conserves at the stage, saves reinforcing bar and concrete material dosage;Simultaneously as it is come to reinforcing bar using jack 20 Concrete is positioned, it is possible to is reused, and can be adapted to different size of column component, has greatly saved reality Test cost.
In order to enable the fixation to armored concrete is more firm, in the present embodiment, under reinforced column 10 End sets double wedge 11, and the end set of jack 20 has tooth plate 21, and tooth plate 21 is engaged with dentalation, and jack 20 passes through Tooth plate 21 is compressed so as to come the bottom of fixed steel bars concrete column 10.
In the present embodiment, fixed case has been further included, fixed case includes horizontally disposed rectangular bottom plate 41 and encloses Close the side plate 42 arranged vertically for four edge placements for being arranged in bottom plate 41, be connected on each side plate 42 one it is very heavy Top 20, reinforced column 10 is arranged on the centre position of fixed case, and multiple limit holes 411, limit hole are provided with bottom plate 41 Solid steel tube 22 is inserted with 411, solid steel tube 22 is used to prop up tooth plate 21 so that what tooth plate 21 can be better compresses steel Reinforced concrete column 10.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.

Claims (8)

1. one kind is without base reinforced column pseudo static testing device, it is characterised in that the armored concrete including experiment Column and rigid connection fixing device, the lower end of the reinforced column are not provided with base and formed with rigid connection portion;The rigid connection is consolidated Determine device to be fixedly connected on ground beam, it includes jack mechanism, and the jack mechanism is laterally pressed against the rigid connection portion, makes The lower end of the reinforced column forms rigid connection state.
2. one kind as claimed in claim 1 is without base reinforced column pseudo static testing device, it is characterised in that the steel Reinforced concrete column is square column, and the jack mechanism includes four jack, and four jack are different towards four respectively Direction compresses the four sides in the rigid connection portion.
3. one kind as claimed in claim 2 is without base reinforced column pseudo static testing device, it is characterised in that described firm Formed with double wedge, one end compressed with the rigid connection portion of the jack is provided with the tooth plate of steel, described on the surface of socket part Tooth plate is connected with the double wedge, and the jack is by compressing the tooth plate so as to secure the above armored concrete Column.
4. one kind as claimed in claim 3 is without base reinforced column pseudo static testing device, it is characterised in that described firm Socket part is formed with the two dentation metopes vertical with the normal direction of counter force wall metope, the rigid connection portion only two dentation walls Formed with the double wedge on face, and the end set for only compressing two jack of the dentation metope has the tooth plate.
5. one kind as claimed in claim 4 is without base reinforced column pseudo static testing device, it is characterised in that described firm Connect fixing device and further include fixed case, the fixed case is arranged in described including horizontally disposed rectangular bottom plate and enclosing The side plate arranged vertically of four edge placements of bottom plate, is each connected to a jack, institute on the side plate The centre position that reinforced column is arranged on the fixed case is stated, multiple limit holes are provided with the bottom plate, it is described spacing Solid steel tube is inserted with hole, the solid steel tube is used to prop up the tooth plate so that what the tooth plate can be better supports Press the reinforced column.
6. one kind is without base reinforced column pseudo-static experimental method, it is characterised in that in the steel for setting needs to be tested During reinforced concrete column, the base of the reinforced column is not poured, and mixed using jack device from the reinforcing bar The surrounding of the bottom of solidifying soil device is compressed, and the jack is compressed so that described with the armored concrete column bottom The bottom of reinforced column is in rigid connection state.
7. one kind as claimed in claim 6 is without base reinforced column pseudo-static experimental method, it is characterised in that the steel The lower end of reinforced concrete column sets double wedge, and the end set of the jack has a tooth plate, the tooth plate and the dentalation into Row occlusion, the jack is by compressing the tooth plate so as to fix the bottom of the reinforced column.
8. one kind as claimed in claim 7 is without base reinforced column pseudo-static experimental method, it is characterised in that further includes There is fixed case, the fixed case includes horizontally disposed rectangular bottom plate and enclosing is arranged in four edges of the bottom plate The side plate arranged vertically of position, is each connected to a jack, the reinforced column on the side plate The centre position of the fixed case is arranged on, multiple limit holes are provided with the bottom plate, are inserted with the limit hole solid Steel pipe, the solid steel tube are used to prop up the tooth plate so that what the tooth plate can be better compresses the reinforced concrete Earth pillar.
CN201711309024.5A 2017-12-11 2017-12-11 Static simulation test device and method for reinforced concrete column without base Active CN107966357B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109357852A (en) * 2018-10-22 2019-02-19 成都理工大学 A kind of static(al) rack and Quintic system shock test device
CN109632535A (en) * 2018-12-21 2019-04-16 长安大学 A kind of pseudo-static experimental method reflecting incentive action characteristic
CN111157376A (en) * 2020-02-24 2020-05-15 辽东学院 Base-free reinforced concrete column static test device
CN113189141A (en) * 2021-04-21 2021-07-30 哈尔滨工业大学 Shrinkage ratio experimental device for explosion damage of complex reinforced concrete structure
CN113450333A (en) * 2021-06-30 2021-09-28 哈尔滨工业大学 Machine learning-based reinforced concrete column earthquake damage degree evaluation method
WO2022007608A1 (en) * 2020-07-06 2022-01-13 华侨大学 Rammed earth and wood beam joint bending resistance and deformation performance testing device and using method thereof

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CN205538467U (en) * 2016-01-25 2016-08-31 山东华鉴工程检测有限公司 High protection nature reinforcing bar tensile strength test device
CN106053257A (en) * 2016-06-03 2016-10-26 河海大学 Torsion test device and method for measuring bending torque of concrete column
CN106401069A (en) * 2016-11-02 2017-02-15 华侨大学 Damage repairing assembly type combined column with self-reset function
CN206110352U (en) * 2016-08-19 2017-04-19 西安建筑科技大学 Can repair, formula that restores to throne certainly rectangular concrete -filled steel tube frame column base node
CN107167368A (en) * 2017-05-16 2017-09-15 华侨大学 A kind of non-surrounding is by concrete column pseudo static testing device and its implementation after fire
CN207636397U (en) * 2017-12-11 2018-07-20 哈尔滨工业大学 A kind of no pedestal reinforced column pseudo static testing device

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JPS60175624A (en) * 1984-02-22 1985-09-09 Mitsui Kaiyo Kaihatsu Kk Wedging device for elevating leg column of off-shore working platform
JPH10317374A (en) * 1997-05-19 1998-12-02 Ohbayashi Corp Method for constructing underground column made of reinforced concrete
CN102839640A (en) * 2012-09-06 2012-12-26 上海利策科技股份有限公司 Locking mechanism for self-elevating drilling platform
CN205538467U (en) * 2016-01-25 2016-08-31 山东华鉴工程检测有限公司 High protection nature reinforcing bar tensile strength test device
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109357852A (en) * 2018-10-22 2019-02-19 成都理工大学 A kind of static(al) rack and Quintic system shock test device
CN109632535A (en) * 2018-12-21 2019-04-16 长安大学 A kind of pseudo-static experimental method reflecting incentive action characteristic
CN111157376A (en) * 2020-02-24 2020-05-15 辽东学院 Base-free reinforced concrete column static test device
WO2022007608A1 (en) * 2020-07-06 2022-01-13 华侨大学 Rammed earth and wood beam joint bending resistance and deformation performance testing device and using method thereof
CN113189141A (en) * 2021-04-21 2021-07-30 哈尔滨工业大学 Shrinkage ratio experimental device for explosion damage of complex reinforced concrete structure
CN113450333A (en) * 2021-06-30 2021-09-28 哈尔滨工业大学 Machine learning-based reinforced concrete column earthquake damage degree evaluation method
CN113450333B (en) * 2021-06-30 2022-01-28 哈尔滨工业大学 Machine learning-based reinforced concrete column earthquake damage degree evaluation method

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