CN103712850B - A kind of scissor loading positioner of post and loading localization method - Google Patents
A kind of scissor loading positioner of post and loading localization method Download PDFInfo
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- CN103712850B CN103712850B CN201410004389.7A CN201410004389A CN103712850B CN 103712850 B CN103712850 B CN 103712850B CN 201410004389 A CN201410004389 A CN 201410004389A CN 103712850 B CN103712850 B CN 103712850B
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Abstract
The present invention relates to structural test field, be specifically related to the loading positioner of compressed column test in a kind of civil engineering, the secondary that is specially adapted to compression column under load and environment coupled action loads. Load positioner and comprise the vertical lift system being formed by scissors fork, fixing hinge, slide rail, connecting rod, drive screw, handle, vertical ribbed stiffener and baffle plate, and locate auxiliary frame and move horizontally and fixed system. Loading positioner can hold up compression column and arrive three-dimensional optional position, not only do not need people to hold up, and can meet the loading demand of different sizes and different structure compression column, realize the quick and precisely location that compression column is loaded, ensured that compression column remains vertical stable in position fixing process.
Description
Technical field
The present invention relates to structural test field, be specifically related to the loading positioner of compressed column test in a kind of civil engineeringWith loading localization method, the secondary that is specially adapted to compression column under load and environment coupled action loads.
Background technology
In civil engineering structure test, often to carry out static(al) to steel column, reinforced column and steel core concrete column and be subject toPress load test. For accurate imitation specimen end restraint condition with ensure the accuracy of loading position, usually adopt cutter strand orBall twisted branch seat, because cutter strand or ball twisted branch seat are line or some contact, therefore it has unstability (as shown in Figure 1), in testTime in place, must pillar be buttressed to guarantee pillar by people and vertically not topple over. In the load test of post, loading position is commonBe a line or a point, compression column yardstick is large, and weight is large, often weighs several tons, no matter is center loaded or bias-load,How to keep the vertical stable of compression column and how the default loading position of rapid alignment always is the difficulty in structural testTopic.
At present, the method generally adopting is artificial righting and aligning, by operating personnel, compression column is lifted to testing stand or ten thousandOn energy testing machine operating platform, then jack is adjusted in righting on one side on one side, in aiming at, load is added on compression column.This method needs numerous labours, general 4-5 people, and also aligning difficulty is large especially, often needs repeatedly could aim at. ThisOutward, because compression column yardstick is large, weight is large, is again work high above the ground, and compression column can topple over unless you give your whole attention to it, and the lighter causes examinationTest failure, the heavy safety that jeopardizes testing equipment and personnel.
Summary of the invention
For presetting loading position by rapid alignment in prior art, need numerous labours, mobile difficulty is large, easyThe defect such as topple over, problem to be solved by this invention is to provide one can be disposable, quick and precisely and stable alignment pre-arbitrarilyIf the loading positioner of loading position (line or a point), described loading positioner not only can Free water translationMoving, but also can free vertical lift, can meet the loading demand of the compression column of the big or small and different structure of difference, particular importanceTo ensure that compression column remains vertical stable in position fixing process, has avoided compression column to incline in position fixing processFall. Described compression column refers to the pillar of intending carrying out pressurized tests.
For the load test of post, the localization method that prior art generally adopts is artificial righting and aligning, by operatorMember lifts to compression column on testing stand or universal testing machine operating platform, and then jack is adjusted in righting on one side on one side, is aiming atIn time, is added to load on compression column. This method generally needs numerous labours, and aligning difficulty is large especially. ThisBright loading positioner is to adopt hollow structure that compression column is held up from bottom, makes compression column unsettled, sliding by two levelsMoving gripper shoe ensures the vertical stability of compression column, because it is in vacant state, therefore, no matter is horizontal movement or verticalLifting, compression column all keeps vertical stablizing not topple over.
The technical solution adopted for the present invention to solve the technical problems is:
A scissor loading positioner for post, described loading positioner comprises location auxiliary frame, moves horizontallyWith fixed system and vertical lift system (referring to Fig. 3,4,5,6), wherein:
Described location auxiliary frame is hollow structure, comprises two horizontal slip gripper shoes, described location auxiliary frame energyEnough move arbitrarily in level and vertical direction, remain at loading position fixing process compression column for supporting compression column and ensureingVertical stable;
Described moving horizontally with fixed system for compression column is moved arbitrarily in the horizontal direction, and make determining behind locationPosition auxiliary frame and the compression column on it keep static;
Described vertical lift system is used for making compression column move arbitrarily and keep arbitrary height at vertical direction;
Compression column is placed on described location auxiliary frame, and described location auxiliary frame height is greater than the height of cutter hinged-supportDegree, moves horizontally described location auxiliary frame and makes the compression column on it arrive default loading position, reduces described vertical literThe system of falling makes compression column accurately drop on default loading position and be in contact with it, and makes the deadweight of compression column by the loading position of presettingBear, after making compression column keep stablizing under the effect of two ends cutter hinged-support to compression column load application, continue described in reducingVertical lift system, departs from itself and compression column, then described location auxiliary frame is shifted out, and load application coupled columns carries out mechanicsPerformance test.
Described cutter hinged-support loads bearing and V-type second with plush copper by the V-type with recess first and loads bearing and form,The described V-type with recess first loads bearing and is selected from the V-type first of central through hole and loads bearing and not with central through holeFirst loads bearing, the second described V-type plush copper that loads bearing is put into after the V-type recess of the first loading bearing to twoThe stack height sum of seat is the height of cutter hinged-support. According to the needs of load test, select with central through hole or in not being withFirst of heart through hole loads bearing, and compression column carries out secondary while loading under to load and environment coupled action, selects band centerFirst of through hole loads bearing and second and loads the cutter twisted branch seat that bearing combination forms, and other load condition selects Bu Dai center logicalFirst of hole loads bearing and second and loads the cutter twisted branch seat that bearing combination forms. The V-type tip of described cutter hinged-support isSecond loads the V-type tip of bearing.
As preferably, described vertical lift system comprise scissors fork, fixing hinge, slide rail, connecting rod, drive screw, handle,Vertical ribbed stiffener and baffle plate, described scissors fork is made up of steel plate, and the centre of described steel plate and two ends have hole, described scissorsOne end of fork is hinged with vertical ribbed stiffener by fixing hinge, the other end and the rod hinge connection of described scissors fork, and connecting rod is arranged on cunningIn rail, also can in slide rail, move horizontally, the middle part of described drive screw and connecting rod is rotationally connected, and on described baffle plate, has screw threadHole, described drive screw screws in the screwed hole on baffle plate, and the other end of described drive screw is connected with handle. Turning handle, bandMoving drive screw motion, drive screw motion drives link motion, and link motion makes one end of described scissors fork sliding in slide railMoving, the other end is vertical motion in horizontal slip just, drives the location auxiliary frame that is connected on scissors fork in the vertical directionOn do elevating movement. The function of described vertical lift system is: by vertical lift system can realize location auxiliary frame fromBy lifting, turning handle, driving one end of scissors fork moves horizontally in slide rail, and it is same that the other end moves horizontally in slide railTime vertical lift, do in vertical direction elevating movement thereby realized location auxiliary frame; Connecting rod is threaded with baffle plate, guaranteesLocation auxiliary frame can stop at arbitrary height.
The method at present compression column being placed on cutter hinged-support is to adopt manpower that compression column is lifted, and is then put into cutter hingedOn seat, because cutter hinged-support and compression column are that line or point contact, therefore do not there is stability, need people to carry out righting and guarantee that it hangs downDirectly, the aligning of cutter hinged-support and default loading position is very difficult, if once can not aim at, needs compression column to lift againAim at, often need repeated multiple timesly just can complete, and each aligning all to lift compression column, bothersome effort. The present invention adopts verticalStraight jacking system, is shelved on compression column on the auxiliary frame of location, drives hoistable platform vertical lift by swivel bolt, actual behaviourWhile work, as long as hoistable platform is elevated to the height higher than cutter hinged-support, make to keep certain between compression column and cutter hinged-supportDistance (can be generally 5-20 millimeter), so just easily movable knife hinged-support, to default loading position, makes cutter hinged-supportAfter aiming at default loading position, reduce location auxiliary frame, just realized the accurate aligning of cutter hinged-support and loading position.
Preferred, described scissors fork can be made up of the steel plate of two intersections.
Preferred, described scissors fork also can be combined by the steel plate stack of multipair intersection from bottom to top, everyBetween upper and lower to the steel plate intersecting, all adopt bearing pin or bolt to connect. Increase vertical lift system by the steel plate of multipair intersectionVertical lift height, realize differing heights and load the needs of bearing.
Preferred, for the middle part of realizing described drive screw and connecting rod is rotationally connected, there is part at the middle part of described connecting rodThe cross section (referring to Fig. 7) increasing, the function in described cross section is to make the partial cross section of connecting rod to be greater than drive rod, makes drive screw energyEnough penetrate connecting rod, thereby reduce the diameter of connecting rod, reduced volume, saved material; The center in described cross section has small through hole,The aperture of described small through hole is greater than the diameter of drive screw, and the thickness in described cross section is not less than the diameter of described connecting rod, described in driveMoving screw rod penetrates in described small through hole, and the two sides in described cross section are provided with bearing, and the function of described bearing is to reduce to driveFrictional force between screw rod and described cross section just can drive link be transported drive screw under less power effect in slide railMoving; Described drive screw is being provided with hole (referring to Fig. 8) near two side positions of bearing. Further preferred, described part increasesLarge cross section is circular or square (for example rectangle, square) cross section.
Preferred, described drive screw is installed with " L " type pin in the hole set near two side positions of bearing, described inThe function of " L " type pin is the position of rigid bearing, promotes connecting rod only horizontal movement in chute while ensureing drive screw turns.
As preferably, the location auxiliary frame that the present invention loads positioner comprises entablature, sill and is shelved on top railTwo horizontal slip gripper shoes on beam, the cross section of described entablature or sill can be respectively T-shaped or L-type, also can be equalFor T-shaped or L-type, described entablature, sill are by horizontal flange and vertical ribbed stiffener composition, and the function of horizontal flange is to prop upSupport horizontal slip gripper shoe, the function of vertical ribbed stiffener is the rigidity on the enhanced level edge of a wing; The horizontal flange of described entablatureBe provided with rectangle bolt hole, described horizontal slip gripper shoe is fixedly connected with rectangle bolt hole by bolt and can be at horizontal flangeUpper horizontal slip is fixed, and the vertical ribbed stiffener of described sill is provided with rectangle slide rail. Described horizontal slip gripper shoe is used forSupport compression column, in the rectangle bolt hole that horizontal slip gripper shoe can arrange according to the size dimension of compression column on horizontal flangeHorizontal slip is fixing to support different size, difform compression column, thereby has successfully solved different size and difformityThe loading location of compression column needs. Accurately behind location, reduce top rail depth of beam at compression column, and rotation is fixed on entablatureBolt can easily depart from compression column and shift out from its bottom loading positioner, has successfully eliminated loading positioner to being subject toThe impact of compression leg load test.
The present invention loads the location auxiliary frame of positioner can be only by entablature, sill and horizontal slip gripper shoe groupClosing connecting overall forms.
As preferably, the described horizontal flange two that comprises sill with fixed system and be arranged in sill that moves horizontallyEnd four rolling, described roller and the horizontal flange of sill is with bolts or welding. Preferred, described rollsWheel is universal wheel with lock function. Roller moves arbitrarily described location auxiliary frame in the horizontal direction, guarantees compression columnDepressed position precise positioning. Because compression column is bulky, mobile very inconvenient, the method for prior art is moved by hand,In moving process, distance is difficult to hold, and often repeatedly could aim at. Of the present invention moving horizontally with fixed system bottom is provided withUniversal wheel, compression column is shelved on the auxiliary frame of location, as long as promote gently location auxiliary frame, can move and shelve thereon thereuponCompression column to optional position. Prior art ensures that by artificial righting the compression column behind location keeps stable, and troublesome poeration butBe difficult to ensure the lasting stability of compression column, the present invention moves horizontally and fixes system by universal wheel lockable with lock functionSystem, keeps fixing thereby can guarantee to locate auxiliary frame with the compression column on it. After in place, locking universal wheel, can not rotate it.Universal wheel can not move, and the location auxiliary frame on it can not move, thereby has guaranteed location auxiliary frame and the compression column on itKeep fixing.
The present invention loads the principle schematic of positioner referring to Fig. 2, and its principle is: arrange two in the bottom of compression columnHorizontal slip gripper shoe, compression column is shelved in horizontal slip gripper shoe, by horizontal slip gripper shoe, compression column entirety is held up.Horizontal slip gripper shoe is arranged on the bottom surface two ends of compression column, has therefore ensured the vertical stable of compression column, and horizontal slip is propped upDistance between fagging can be adjusted arbitrarily to meet the needs that support different big or small compression columns, and the height of horizontal slip gripper shoe canWith any lifting, to meet the needs of differing heights cutter hinged-support, horizontal slip gripper shoe can level move arbitrarily to meet fastAim at the needs of any loading position, loading positioner of the present invention can hold up compression column and arrive three-dimensional any positionPut, therefore easily realized the quick and precisely location that compression column is loaded, and do not needed people to hold up. When test, only need adjustment levelDistance between sliding support plate, is held on compression column on horizontal slip gripper shoe, adjusts water by vertical lift systemThe height of flat sliding support plate, makes the bottom surface of support compression column thereon (generally passable higher than cutter hinged-support certain distance5-20 millimeter), to ensure that horizontal slip gripper shoe can the accessible movement of level, by moving horizontally with fixed system in levelIn face, slowly mobile and horizontal sliding support plate is accurately aimed at the plan loading position that supports compression column thereon in the vertical directionThe V-type tip of cutter hinged-support, then reduce bottom surface that jacking system makes to be supported in the compression column in horizontal slip gripper shoe withThe contact of cutter hinged-support, the deadweight of compression column is born by cutter hinged-support, so, has just realized accurately determining compression column load testPosition.
Based on loading positioner of the present invention, the present invention also provides a kind of loading localization method of post, comprises following stepRapid:
(1) determine the loading position of compression column upper and lower end;
(2) compression column is placed on the auxiliary frame of location;
(3) lifting vertical lift system, makes compression column flying height placed on it be greater than the height of cutter twisted branch seat;
(4) a cutter twisted branch seat is placed in to the end face of compression column, makes the V-type tip of described cutter hinged-support accurate in the vertical directionReally alignment procedures (1) is determined the loading position of compression column upper end;
(5) move horizontally the force application location place of described location auxiliary frame to pilot system;
(6) bottom surface loading place that another cutter twisted branch seat is placed in to compression column, exists the V-type tip of described cutter hinged-supportThe accurate alignment procedures of vertical direction (1) is determined the loading position of compression column lower end, then reduces vertical lift system, makes compression columnBottom surface contact with described cutter hinged-support;
(7), to compression column load application, after making compression column keep stablizing under the effect of two ends cutter hinged-support, continue to reduceDescribed vertical lift system, departs from itself and compression column;
(8) unscrew the bolt of fixing horizontal sliding support plate, described location auxiliary frame is shifted out, so from compression column bottomAfter-applied load carries out mechanical property test to compression column.
Beneficial effect of the present invention is mainly manifested in:
1, loading positioner of the present invention not only can move horizontally, but also can free lifting, stops at any heightDegree, has not only successfully solved the vertical stable and rapid alignment problem of compression column in pressurized load test, but also has solved notLoading location with size and different structure compression column needs;
2, the horizontal slip gripper shoe that supports compression column in loading positioner of the present invention is by bolt and entablature waterOn the flat edge of a wing, rectangle bolt hole connects, and horizontal slip gripper shoe can be according to the size dimension of compression column on entablature horizontal flangeSlide fixing, successfully solved the loading location needs of different size and difformity compression column;
3, loading positioner own wt of the present invention is light, volume is little, and loads and support compression column in positionerHorizontal slip gripper shoe is connected with rectangle bolt hole on entablature horizontal flange by bolt, accurately behind location, rotates at compression columnHandle reduces the entablature of hoistable platform, then the bolt that rotates fixing horizontal sliding support plate can easily will load positionerShift out from compression column bottom, successfully eliminated the impact on test of positioner and hoistable platform;
4, loading positioner of the present invention can not rotate it by locking universal wheel and ensures positioner horizontal directionBe not moved, guaranteed that compression column slightly slided due to load action before loading is stable.
5, charger of the present invention is located after compression column is held up, and can quick and precisely realize the location of compression column is addedCarry, and can aim at arbitrarily the loading position of change, be more conducive to the stressed research to compression column, change loading position speed fast,Easily realize, no longer need people to hold up by the location of compression column after loading positioner, solved compression column because yardstick is large, heavyAmount is large, is again work high above the ground, and compression column can topple over unless you give your whole attention to it, and the lighter causes test failure, heavy jeopardize to test and establishThe problem of standby and personal security.
Brief description of the drawings
Fig. 1 is the loading location structure schematic diagram of prior art center pillar.
Fig. 2 is the inventive principle schematic diagram of loading positioner of the present invention.
Fig. 3 is the structural representation of loading positioner of the present invention.
Fig. 4 is the top surface structure schematic diagram of loading positioner of the present invention.
Fig. 5 is the bottom surface structure schematic diagram of loading positioner of the present invention.
Fig. 6 is the side structure schematic diagram of loading positioner of the present invention.
Fig. 7 is the local increasing section structural representation in connecting rod of the present invention middle part.
Fig. 8 is drive screw of the present invention and connecting rod middle part rotation connection structure schematic diagram.
Fig. 9 is that loading positioner of the present invention is realized the enforcement schematic diagram once loading.
Figure 10 is that loading positioner of the present invention is realized the enforcement schematic diagram that secondary loads.
In figure:
The 11st, entablature, the 12nd, sill, the 13rd, horizontal slip gripper shoe, the 14th, rectangle bolt hole, the 15th, bolt, 111Horizontal flange, the 112nd, vertical ribbed stiffener;
The 21st, roller;
The 31st, scissors fork, the 32nd, fixing hinge, the 33rd, slide rail, the 34th, connecting rod, the 35th, drive screw, the 36th, handle; The 311st, cutKnife and fork steel plate, the 312nd, the bolt hole on scissors fork, the 37th, baffle plate;
The 41st, the local increasing section that connecting rod middle part arranges, the 42nd, bearing, the 43rd, " L " type pin;
The 51st, post, the 52nd, preformed hole, the 53rd, pulling force rib, the 54th, backing plate, the 55th, anchor bolt, the 56th, the V-type with recessOne loads bearing, the 561st, loads bearing, the 562nd with first of central through hole, does not load bearing, 57 with first of central through holeThat V-type second with plush copper loads bearing, the 567th, cutter hinged-support, the 58th, testing machine or reaction frame, the 59th, jack, the 510th, postAxis, the 511st, load position, the 512nd, eccentric throw.
61 is central through holes of the first loading bearing, and 62 is the V-type tip of cutter hinged-support.
Detailed description of the invention
The invention provides a kind of scissor loading positioner of post, described loading positioner comprises that location is auxiliaryFrame, move horizontally and fixed system and vertical lift system (referring to Fig. 3,4,5,6), wherein:
Described location auxiliary frame is hollow structure, comprises two horizontal slip gripper shoes, described location auxiliary frame energyEnough move arbitrarily in level and vertical direction, remain at loading position fixing process compression column for supporting compression column and ensureingVertical stable;
Described moving horizontally with fixed system for compression column is moved arbitrarily in the horizontal direction, and make determining behind locationPosition auxiliary frame and the compression column on it keep static;
Described vertical lift system is used for making compression column move arbitrarily and keep arbitrary height at vertical direction;
Wherein:
Described vertical lift system comprises scissors fork 31, fixing hinge 32, slide rail 33, connecting rod 34, drive screw 35, handle36, vertical ribbed stiffener 112 and baffle plate 37, described scissors fork 31 is made up of steel plate 311, the centre of described steel plate 311 and two endsPortion has hole 312, and one end of described scissors fork 31 is hinged with vertical ribbed stiffener 112 by fixing hinge 32, described scissors fork 31The other end and connecting rod 34 are hinged, and connecting rod 34 is arranged in slide rail 33 and can in slide rail 33, moves horizontally, described drive screw 35Be rotationally connected with the middle part of connecting rod 34, on described baffle plate 37, have screwed hole, described drive screw 35 screws in the spiral shell on baffle plate 37Pit, the other end of described drive screw 35 is connected with handle 36.
Described scissors fork 31 is made up of the steel plate 311 of two intersections, or described scissors fork 31 is by from bottom to topSteel plate 311 stack combinations of multipair intersection form.
There is the local cross section 41 increasing at the middle part of described connecting rod 34, and 41 center, described cross section has small through hole, described littleThe aperture of through hole is greater than the diameter of described drive screw 35, and the thickness in described cross section 41 is not less than the diameter of described connecting rod 34, instituteState drive screw 35 and penetrate in described small through hole, the two sides in described cross section 41 are provided with bearing 42, and described drive screw 35 existsTwo side positions near bearing are provided with hole.
Described drive screw 35 is installed with " L " type pin 43 in the hole set near two side positions of bearing.
Described location auxiliary frame comprises entablature 11, sill 12 and is shelved on two horizontal slips on entablature 11Gripper shoe 13, the cross section of described entablature 11, sill 12 is selected from T-shaped and L-type, and described entablature 11, sill 12 are by waterThe flat edge of a wing 111 and vertical ribbed stiffener 112 form, and the horizontal flange 111 of described entablature 11 is provided with rectangle bolt hole 14, described inHorizontal slip gripper shoe 13 is fixedly connected with rectangle bolt hole 14 by bolt 15 and can on horizontal flange 111, horizontal slip consolidatesFixed, the vertical ribbed stiffener 112 of described sill 12 is provided with rectangle slide rail 33.
Described moving horizontally with fixed system comprises sill 12 and horizontal flange 111 two ends that are arranged in sill 12Four rolling 21.
Described roller 21 is universal wheel with lock function.
Illustrate below and utilize loading positioner of the present invention to realize the load test of post.
1: load test of embodiment (referring to Fig. 9)
(1) one group of 4 reinforced column, its sectional dimension is 200 × 200mm, is highly 2000mm, eccentric throw (lotusCarry the distance of active position to compression column axis) be respectively 0mm, 30mm, 60mm, 150mm, C30 concrete, the main muscle of postBe 420, stirrup is6150, protective layer 15mm, coupled columns carries out bearingtest, and the loading position of post is eccentric throw,Be respectively: 0mm(axis place), 30mm, 60mm, 150mm.
(2) post that is 150mm by eccentric throw is placed on the auxiliary frame of location;
(3) lifting vertical lift system, makes post flying height placed on it be greater than the height of cutter twisted branch seat 567, largeLoad bearing 562 in the V-type with recess first and load bearing 57 stack height sums with the V-type second with plush copper;
(4) a cutter twisted branch seat 567 is placed in to the end face of post 51, makes the V-type tip 62 of described cutter hinged-support at Vertical SquareDetermine the loading position 511 of post upper end to accurate alignment procedures (1), this example is that the eccentric throw of post is drawn to 512 on the surface of post, andVertical line is drawn in most advanced and sophisticated 62 sides of V-type at described cutter hinged-support, and the most advanced and sophisticated vertical line of 62 sides of V-type and the eccentric throw of post 512 overlap;
(5) move horizontally the force application location place of location auxiliary frame to pilot system, this example adopts long column testing machine 58 to carry outLoad, by loading positioner, post 51 is moved to the below of testing machine jack 59, make the center and second of jack 9Loading bearing 57 center aims at;
(6) another cutter hinged-support 567 is put into bottom surface loading place of post, makes the V-type tip 62 of described cutter hinged-supportAccurately alignment procedures (1) is determined and the loading position 511 of post lower end is then reduced vertical lift system in the vertical direction, makes postBottom surface contacts with described cutter hinged-support 567; This example is drawn in the eccentric throw of post 512 on the surface of post, and at described cutter hinged-supportThe most advanced and sophisticated 62 side vertical lines of V-type, the most advanced and sophisticated vertical line of 62 sides of V-type and the eccentric throw of post 512 overlap;
(7) by step (2)-(6), now, realize the loading position of post completely and aimed at, reduce vertical lift systemThe bottom surface that system makes to be supported in the post 51 in horizontal slip gripper shoe 13 contacts with cutter hinged-support 567, and the deadweight of post 51 is cut with scissors by cutterBearing 567 is born, and so, has just realized accurately in place that coupled columns 51 loads;
(8) slowly promote jack 59, allow jack 59 under the effect of reaction frame 58, two ends cutter hinged-support 567 be appliedLoad, post under the effect of two ends cutter hinged-support, keep gradually stable after, continue to reduce described vertical lift system, make its withThe bottom surface of post 51 departs from;
(9) unscrew the bolt 15 of fixing horizontal sliding support plate 13, take down a horizontal slip gripper shoe 13, described determinesPosition auxiliary frame just can shift out from the bottom of post;
(10) promote jack 59, carry according to " Standard for test methods of concrete structures GB50152-92 " coupled columnsPower test;
(11) repeating step (2)-(10), the post that eccentric throw is respectively to 0mm, 30mm, 60mm carries out bearing capacity examinationTest.
Embodiment 2: secondary load test (referring to Figure 10)
(1) post 51 under load and environment coupled action is carried out to Residual Load Bearing Capacity test: reinforced column 51 cutFace is of a size of 125 × 125mm, high 800mm, and the main muscle of post 51 is 410, stirrup is650-100, protective layer 15mm, the wingThe length of the outstanding post of edge is 120mm, and eccentric throw 512 is 100mm, the diameter 32mm of preformed hole 52, and the calculating limit of post 51 is heldThe power of carrying is 64kN, and pulling force rib 53 is the stainless finish rolling screw thread of diameter 25mm, backing plate 54 diameter 100mm, and thick 120mm, material is steelMaterial, anchor bolt 55 diameters are 55mm, before coupled columns carries out Residual Load Bearing Capacity test, to having applied 40 by pulling force rib coupled columnsThe working load of kN, and post 51 is placed to the actual working state of 365 days model configurations at artificial environment simulation box;
(2) V-type with central through hole first is loaded bearing 561 be enclosed within post 51 bottom surfaces anchor bolt 55 itOutward, in this specific embodiment, the described V-type with central through hole first loads bearing 561 and contacts one end of 54 with backing plateBe embedded with 4 blocks of magnet, the intensity of magnet enough holds the deadweight of loading bearing 561 with holes, by the described V-type with central through holeFirst loads bearing 561 is enclosed within outside anchor bolt 55, and the first described loading bearing 561 is just inhaled on backing plate 54, adjusts instituteState the position of the first loading bearing 561, make described first to load the accurate plan loading position of aiming in the vertical direction, bearing V-type tip 62Put 511, in the specific implementation, this example is the surface that eccentric throw 512 is drawn in post by the loading position of post 51, and described firstVertical line is drawn in most advanced and sophisticated 62 sides of V-type that load bearing, and the most advanced and sophisticated vertical line of 62 sides of V-type and the eccentric throw of post overlap;
(3) post of intending carrying out pressurized tests is placed on the auxiliary frame of location;
(4) lifting vertical lift system, makes post placed on it 51 flying heights be greater than the height of cutter twisted branch seat 567,The V-type with central through hole first described in being greater than loads bearing 561 and the V-type second with plush copper loads bearing 57 stack heightSum;
(5) another V-type with central through hole first is loaded bearing 561 be enclosed within post 51 end faces anchor bolt 55 it, make the V-type tip 62 of cutter hinged-support accurately aim at and intend loading position 511 in the vertical direction outward, in the specific implementation, this example is by post51 loading position 511 is the surface that eccentric throw 512 is drawn in post, and in the described first most advanced and sophisticated 62 sides of V-type that load bearingDraw vertical line, after the most advanced and sophisticated vertical line of 62 sides of V-type and the eccentric throw of post 512 overlap, then a V-type with plush copper second is loaded and propped upSeat 57 is put into the V-type recess of described the first loading bearing 561, for preventing that the V-type first with recess from loading bearing 561 at positional operandSlip while work, the one end contacting with backing plate 54 at the first described loading bearing 561 is equally embedded with 4 blocks of magnet;
(6) the mobile force application location place of posting to pilot system that load, this example adopts reaction frame 58 and jack 59 to addCarry, by loading positioner, post 51 is moved to the below of jack 59, make jack 59 center and load bearing 57Center aim at;
(7) by another, the V-type with plush copper second loads bearing 57 and is put into the bottom surface of post 51, makes described second to loadThe V-type plush copper most advanced and sophisticated 62 of seat is aimed at the V-type recess tip of the first loading bearing 561;
(8) by step (2)-(7), now, realize the loading position of post 51 completely and aimed at, reduce jacking systemThe the first loading bearing 561 and second that makes to be adsorbed in the bottom surface of the post 51 being supported in horizontal slip gripper shoe 13 loads bearing57 contacts, the cutter hinged-support 567 that the deadweight of post is just formed by the first loading bearing 561 and the second loading bearing 57 is born, so,Just realized accurately in place that coupled columns 51 loads;
(9) slowly promote jack 59, allow jack 59 under the effect of reaction frame to two ends cutter hinged-support load application,Post 51 under the effect of two ends cutter hinged-support 567, keep gradually stable after, reduce described vertical lift system, make itself and postBottom surface departs from;
(10) unscrew the bolt 15 of fixing horizontal sliding support plate 13, take down a horizontal slip gripper shoe 13, describedLocation auxiliary frame just can shift out from column bottom;
(11) promote jack 59, remain according to " Standard for test methods of concrete structures GB50152-92 " coupled columns 51Remaining bearingtest.
Above-described embodiment is only not used in and limits the scope of the invention for the present invention is described. In addition should be understood that and readingThe present invention lecture content after, those skilled in the art can make various changes or modifications the present invention, these shapes of equal valueFormula falls within the application's appended claims limited range equally.
Claims (9)
1. a scissor loading positioner for post, is characterized in that, described loading positioner comprise location auxiliary frame,Move horizontally and fixed system and vertical lift system, wherein:
Described location auxiliary frame is hollow structure, comprises two horizontal slip gripper shoes, and described location auxiliary frame can beLevel and vertical direction move arbitrarily, remain vertical for supporting compression column and ensureing at loading position fixing process compression columnStable;
Described moving horizontally with fixed system for compression column is moved arbitrarily in the horizontal direction, and make the location behind location auxiliaryHelp frame and the compression column on it to keep static;
Described vertical lift system is used for making compression column move arbitrarily and keep arbitrary height at vertical direction;
Described location auxiliary frame comprises entablature (11), sill (12) and is shelved on two levels cunnings on entablature (11)Moving gripper shoe (13), the cross section of described entablature (11), sill (12) is selected from T-shaped and L-type, described entablature (11), bottom railBeam (12) is by horizontal flange (111) and vertical ribbed stiffener (112) composition, on the horizontal flange (111) of described entablature (11)Be provided with rectangle bolt hole (14), described horizontal slip gripper shoe (13) is fixedly connected with rectangle bolt hole (14) by bolt (15)And can fix in the upper horizontal slip of horizontal flange (111), it is sliding that the vertical ribbed stiffener (112) of described sill (12) is provided with rectangleRail (33); Wherein, the cross section of described entablature or sill is respectively T-shaped or L-type, or is T-shaped or L-type.
2. the scissor loading positioner of post according to claim 1, is characterized in that: described vertical lift systemComprise scissors fork (31), fixing hinge (32), slide rail (33), connecting rod (34), drive screw (35), handle (36), vertical ribbed stiffenerAnd baffle plate (37) (112), described scissors fork (31) is made up of steel plate (311), and open the centre of described steel plate (311) and two endsPorose (312), one end of described scissors fork (31) is hinged with vertical ribbed stiffener (112) by fixing hinge (32), described scissors fork(31) the other end and connecting rod (34) are hinged, and connecting rod (34) is arranged in slide rail (33) and can in slide rail (33), moves horizontally,Described drive screw (35) is rotationally connected with the middle part of connecting rod (34), and described baffle plate has screwed hole on (37), described driving spiral shellBar (35) screws in the screwed hole on baffle plate (37), and the other end of described drive screw (35) is connected with handle (36).
3. the scissor loading positioner of post according to claim 2, is characterized in that: described scissors fork (31) bySteel plate (311) composition of two intersections.
4. the scissor loading positioner of post according to claim 2, is characterized in that: described scissors fork (31) bySteel plate (311) stack combinations of multipair intersection from bottom to top forms.
5. the scissor loading positioner of post according to claim 2, is characterized in that: the middle part of described connecting rod (34)Have the local cross section (41) increasing, the center of described cross section (41) has small through hole, described in the aperture of described small through hole is greater than, drivesThe diameter of moving screw rod (35), the thickness of described cross section (41) is not less than the diameter of described connecting rod (34), described drive screw (35)Penetrate in described small through hole, the two sides of described cross section (41) are provided with bearing (42), and described drive screw (35) is near axleTwo side positions that hold are provided with hole.
6. the scissor loading positioner of post according to claim 2, is characterized in that: described drive screw (35) existsNear being installed with " L " type pin (43) in the set hole of two side positions of bearing.
7. according to the scissor loading positioner of the post described in claim 1-6 any one, it is characterized in that: described waterThe moving four rolling that comprises sill (12) with fixed system and be arranged in horizontal flange (111) two ends of sill (12) of translation(21)。
8. the scissor loading positioner of post according to claim 7, is characterized in that: described roller (21) is bandThe universal wheel of lock function.
9. the loading method of the scissor loading positioner of post according to claim 1, is characterized in that comprising following stepRapid:
(1) determine the loading position of compression column upper and lower end;
(2) compression column is placed on the auxiliary frame of location;
(3) lifting vertical lift system, makes compression column flying height placed on it be greater than the height of cutter twisted branch seat;
(4) a cutter hinged-support is placed in to the end face of compression column, makes the V-type tip of described cutter hinged-support accurately right in the vertical directionThe loading position of the definite compression column upper end of accurate step (1);
(5) move horizontally the force application location place of described location auxiliary frame to pilot system;
(6) another cutter hinged-support is placed in to bottom surface loading place of compression column, the V-type tip that makes described cutter hinged-support is verticallyThe loading position of the definite compression column lower end of the accurate alignment procedures of direction (1), then reduce vertical lift system, makes compression columnBottom surface contacts with described cutter hinged-support;
(7) to compression column load application, after making compression column keep stablizing under the effect of two ends cutter hinged-support, described in continuing to reduceVertical lift system, itself and compression column are departed from;
(8) unscrew the bolt of fixing horizontal sliding support plate, described location auxiliary frame is shifted out from compression column bottom, then executeAdd load compression column is carried out to mechanical property test.
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| CN201410004389.7A CN103712850B (en) | 2014-01-01 | 2014-01-01 | A kind of scissor loading positioner of post and loading localization method |
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| CN201410004389.7A CN103712850B (en) | 2014-01-01 | 2014-01-01 | A kind of scissor loading positioner of post and loading localization method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106840845B (en) * | 2016-12-21 | 2023-06-02 | 北京建筑大学 | Universal bias loading supporting device and application method thereof |
| CN108982353A (en) * | 2018-08-27 | 2018-12-11 | 浙江工业大学 | A kind of non-smooth surface frictional resistance test device |
| CN109186980A (en) * | 2018-09-17 | 2019-01-11 | 南京林业大学 | A kind of one-way eccentric loading device of continuously adjustable examination |
| CN111537172B (en) * | 2020-04-24 | 2022-04-08 | 哈尔滨工业大学 | Multifunctional mobile test device |
| CN111702350A (en) * | 2020-06-30 | 2020-09-25 | 佛山市宏石激光技术有限公司 | Novel laser cutting machine |
| CN113233115B (en) * | 2021-05-12 | 2022-09-23 | 重庆工程职业技术学院 | Conveying device and train wheel circle run-out detection device |
| CN113640098B (en) * | 2021-08-02 | 2023-10-03 | 中国电力工程顾问集团西南电力设计院有限公司 | Semi-rigid node test device with adjustable rigidity |
| CN115096573B (en) * | 2022-06-30 | 2023-12-22 | 中国地质大学（北京） | Test Equipment |
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| CN101726439A (en) * | 2009-12-18 | 2010-06-09 | 东南大学 | Method for testing concrete performance under pressure stress-chemical coupling effect and device thereof |
| CN102374950A (en) * | 2011-11-16 | 2012-03-14 | 浙江建设职业技术学院 | Test device for service performance of reinforced column under load and environment coupled action |
| CN203745283U (en) * | 2014-01-01 | 2014-07-30 | 浙江建设职业技术学院 | Scissor type loading locating structure for column |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5660789B2 (en) * | 2010-03-04 | 2015-01-28 | 株式会社島津製作所 | Compression testing machine |
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|---|---|---|---|---|
| CN101726439A (en) * | 2009-12-18 | 2010-06-09 | 东南大学 | Method for testing concrete performance under pressure stress-chemical coupling effect and device thereof |
| CN102374950A (en) * | 2011-11-16 | 2012-03-14 | 浙江建设职业技术学院 | Test device for service performance of reinforced column under load and environment coupled action |
| CN203745283U (en) * | 2014-01-01 | 2014-07-30 | 浙江建设职业技术学院 | Scissor type loading locating structure for column |
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