CN103728177B - A kind of roller type of post loads positioner and loads localization method - Google Patents
A kind of roller type of post loads positioner and loads localization method Download PDFInfo
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- CN103728177B CN103728177B CN201410004379.3A CN201410004379A CN103728177B CN 103728177 B CN103728177 B CN 103728177B CN 201410004379 A CN201410004379 A CN 201410004379A CN 103728177 B CN103728177 B CN 103728177B
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- 238000011068 loading method Methods 0.000 claims abstract description 98
- 238000012360 testing method Methods 0.000 claims abstract description 45
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
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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 U-shaped lifter plate, roller, bolt hole, horizontal shelf, set bolt, lifting bolt, rectangle bolt hole, hold-down nut, traveling nut, level(l)ing bubble and belt pulley. Device can be quick and precisely disposable and stable alignment default loading position arbitrarily, loading positioner not only can freely move horizontally, but also can free vertical lift, can meet the loading demand of the compression column of different sizes and different structure, ensure that compression column remains vertical stable in position fixing process, has avoided compression column to topple in position fixing process.
Description
Technical field
The present invention relates to civil engineering structure test field, be specifically related to the loading positioner of compressed column test in a kind of civil engineering and load 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) pressurized load test to steel column, reinforced column and steel core concrete column. For the accuracy of accurate imitation specimen end restraint condition and guarantee loading position, usually adopt cutter strand or ball 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 the time that test is 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 a line or a point normally, compression column yardstick is large, weight is large, often weigh several tons, no matter be center loaded or bias-load, how keep the vertical stable of compression column and how the default loading position of rapid alignment always is the difficult problem in structural test.
At present, the method generally adopting is artificial righting and aligning, by operating personnel, compression column is lifted on testing stand or universal testing machine operating platform, and 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. In addition, 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 test 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, the defect such as easily topple over, problem to be solved by this invention is to provide one can be disposable, quick and precisely and the stable alignment loading positioner of default loading position (line or a point) arbitrarily, described loading positioner not only can freely move horizontally, but also can free vertical lift, can meet the loading demand of the compression column of different sizes and different structure, particularly importantly, can ensure that compression column remains vertical stable in position fixing process, avoid compression column to topple in position fixing process. 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 operating personnel, compression column is lifted on testing stand or universal 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 generally needs numerous labours, and aligning difficulty is large especially. Loading positioner of the present invention is to adopt hollow structure that compression column is held up from bottom, make compression column unsettled, ensure the vertical stability of compression column by two horizontal shelf, because it is in vacant state, therefore, no matter be horizontal movement or vertical lift, compression column all keeps vertical stablizing not topple over.
The technical solution adopted for the present invention to solve the technical problems is:
The roller type of post loads a positioner, it is characterized in that, described loading positioner comprises support system, vertical lift system, moves horizontally and fixed system (referring to Fig. 3,4), wherein:
Described support system is hollow structure, can move arbitrarily in level and vertical direction, remains vertical stable for supporting compression column and ensureing at position fixing process compression column;
Described vertical lift system is used for making compression column move arbitrarily and keep arbitrary height at vertical direction, described vertical lift system comprises U-shaped lifter plate, lifting bolt, is arranged on four circular bolt holes in four bights of U-shaped lifter plate, the quantity of described lifting bolt 6 is 4, the bottom bolts hole site place of described U-shaped lifter plate arranges the nut identical with bolt hole internal diameter whorl, the top of described lifting bolt is provided with traveling nut, the bottom of described lifting bolt is connected with roller, and rotation and lifting bolt drives U-shaped lifter plate vertical lifting; The function that U-shaped lifter plate is designed to U-shaped be compression column in place before and in place after can easily and shift out from compression column bottom shift-in. Arrange with the function of the identical nut of bolt hole internal diameter whorl and be to increase the rigidity to screw rod at the bottom bolts hole site place of U-shaped lifter plate, make screw rod keep vertical stable, the function that traveling nut is set on the top of lifting bolt is after traveling nut screws to clamp U-shaped lifter plate, further increases rigidity, perpendicularity and the stability of screw rod.
Described moving horizontally with fixed system for compression column is moved arbitrarily in the horizontal direction, and make the support system behind location and the compression column on it keep static.
Compression column is placed in described support system, described support system height is greater than the height of cutter hinged-support, moving horizontally described support system makes the compression column on it arrive default loading position, reducing described vertical lift system makes compression column accurately drop on default loading position and be in contact with it, the deadweight of compression column is born by the loading position of presetting, after making compression column keep stablizing under the effect of two ends cutter hinged-support to compression column load application, continue to reduce described vertical lift system, itself and compression column are departed from, then described support system is shifted out, load application coupled columns carries out mechanical property 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 load bearing be selected from the V-type first of central through hole load bearing and not with central through hole first load bearing, the second described V-type plush copper that loads bearing is put into after the V-type recess of the first loading bearing, and the stack height sum of two bearings is the height of cutter hinged-support. According to the needs of load test, select with central through hole or do not load bearing with first of central through hole, compression column carries out secondary while loading under to load and environment coupled action, select the cutter twisted branch seat that loads bearing combination composition with the first loading bearing and second of central through hole, other load condition is selected the cutter twisted branch seat of not being with first of central through hole to load bearing and the second loading bearing combination composition. The V-type tip of described cutter hinged-support is the V-type tip of the second loading bearing.
The method at present compression column being placed on cutter hinged-support is to adopt manpower that compression column is lifted, then be put on cutter hinged-support, 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 is vertical, the aligning of cutter hinged-support and default loading position is very difficult, if once can not aim at, need compression column to lift again and to aim at, often need repeated multiple timesly just can complete, and each aligning all will lift compression column, bothersome effort. The present invention adopts vertical lift system, compression column is shelved in support system, drive hoistable platform vertical lift by swivel bolt, when practical operation, as long as hoistable platform is elevated to the height higher than cutter hinged-support, make to maintain a certain distance between compression column and cutter hinged-support (can be generally 5-20 millimeter), so just, easily movable knife hinged-support arrives default loading position, after cutter hinged-support and default loading position are aimed at, reduce support system, just realized the accurate aligning of cutter hinged-support and loading position.
As preferably, the support system that the roller type of post of the present invention loads positioner comprise monolateral breach U-shaped lifter plate, be shelved on two horizontal shelf on U-shaped lifter plate, two parallel-segment of described U-shaped lifter plate are provided with rectangle bolt hole, described horizontal shelf can be fixedly connected with rectangle bolt hole by set bolt and can on U-shaped lifter plate, horizontal slip fix, two parallel-segment of described two horizontal shelf and U-shaped lifter plate surround hollow, rectangular frame, and the clear distance between described two horizontal shelf is less than pillar base shelves the length of direction. The function of two horizontal shelf is that shelf test post guarantees that pillar is vertically stable and do not topple over; In U-shaped lifter plate two parallel-segment, the function of rectangle bolt hole is to realize distance between any adjustment horizontal shelf to meet the needs that support different big or small compression columns.
As preferably, the bottom that the roller type of post of the present invention loads positioner lifting bolt is welded with rectangular steel plates, the end face size of the size of rectangular steel plates and roller is basic identical, bolt hole is left in four bights of rectangular steel plates, the size of bolt hole and position are corresponding with the hole on roller, roller is connected with lifting bolt, and its connected mode can be to adopt bolt. The convenience that the bottom welding rectangular steel plates of lifting bolt and setting and pair of rollers answer the function of bolt hole to be to realize roller install and remove and be convenient for changing different size roller.
As preferably, the roller type of post of the present invention loads the roller of positioner and one end of lifting bolt and adopts and be welded to connect. One end of roller and lifting bolt adopts the function being welded to connect to be to save material, increase coupling stiffness is large. When concrete enforcement, select as required bolt to connect or welding.
As preferably, the lifting bolt that the roller type of post of the present invention loads positioner is provided with belt pulley. Belt pulley connects by belt, and its function is that, in the time rotating a wheel, all the other 3 wheels synchronously rotate and guarantee that U-shaped lifter plate synchronously rises.
As preferably, the top that the roller type of post of the present invention loads the U-shaped lifter plate 1 of positioner is provided with level(l)ing bubble. The function of level(l)ing bubble is to observe whether level of upper plate by level(l)ing bubble, thereby adjusts the bolt in 4 bights, makes upper plate maintenance level.
As preferably, the roller that the roller type of post of the present invention loads positioner is universal wheel. The function of universal wheel is to realize in device horizontal direction and moves arbitrarily.
As preferably, the roller type of post of the present invention loads the roller of positioner with stop. The function of stop can not be rotated universal wheel, and universal wheel can not move, and the support system on it can not move, thereby has guaranteed that support system and the compression column on it keep fixing.
The principle (referring to Fig. 2) that the present invention loads positioner is: two horizontal shelf are set in the bottom of compression column, and compression column is shelved in horizontal shelf, by horizontal shelf, compression column entirety is held up. horizontal shelf is arranged on the bottom surface two ends of compression column, therefore ensured the vertical stable of compression column, distance between horizontal shelf can adjust arbitrarily to meet the needs that support different big or small compression columns, the height of horizontal shelf arbitrarily lifting to meet the needs of differing heights cutter hinged-support, horizontal shelf can level move to meet the needs of any loading position of rapid alignment arbitrarily, be that loading positioner of the present invention can hold up compression column and arrives three-dimensional optional position, therefore easily realize the quick and precisely location that compression column is loaded, and do not needed people to hold up. when test, only need to adjust the distance between horizontal shelf, compression column is held on horizontal shelf, adjust the height of horizontal shelf by vertical lift system, make the bottom surface that supports compression column thereon higher than cutter hinged-support certain distance (can be generally 5-20 millimeter), to ensure that horizontal shelf can the accessible movement of level, make the plan loading position of support compression column thereon accurately aim in the vertical direction the V-type tip of cutter hinged-support by moving horizontally with fixed system slow mobile and horizontal shelf in horizontal plane, then reducing the bottom surface that jacking system makes to be supported in the compression column in horizontal shelf contacts with cutter hinged-support, the deadweight of compression column is born by cutter hinged-support, so, just realized the accurate location to compression column load test.
Be provided with the loading positioner of belt pulley based on lifting bolt of the present invention, the present invention also provides a kind of loading localization method of post, comprises the steps:
(1) determine the loading position of compression column upper and lower end;
(2) adjust distance between horizontal shelf and make its clear distance be less than pillar base to shelve the length of direction, the pillar of intending carrying out pressurized tests is placed in support system;
(3) lifting bolt of rotation vertical lift system, rotates one by belt pulley and drives the synchronous rotation of other three lifting bolts to rise to ensure U-shaped lifter plate level, 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, the V-type tip that makes described cutter hinged-support in the vertical direction accurately alignment procedures (1) determine the loading position of compression column upper end;
(5) move horizontally the force application location place of described support system to pilot system;
(6) bottom surface loading place that another cutter twisted branch seat is placed in to compression column, the V-type tip that makes described cutter hinged-support in the vertical direction accurately alignment procedures (1) determine the loading position of compression column lower end, then reduce vertical lift system according to the method for step (3), the bottom surface of compression column is contacted 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 reduce described vertical lift system according to the method for step (3), itself and compression column are departed from;
(8) take horizontal shelf away, described support system is shifted out from compression column bottom, then load application carries out mechanical property test to compression column.
Top based on U-shaped lifter plate of the present invention is provided with the loading positioner of level(l)ing bubble, and the present invention also provides a kind of loading localization method of post, comprises the steps:
(1) determine the loading position of compression column upper and lower end;
(2) adjust distance between horizontal shelf and make its clear distance be less than pillar base to shelve the length of direction, the pillar of intending carrying out pressurized tests is placed in support system;
(3) lifting bolt of rotation vertical lift system, control the level of U-shaped lifter plate by level(l)ing bubble, four lifting bolts rotate in turn or whether level is rotated according to U-shaped lifter plate, make 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, the V-type tip that makes described cutter hinged-support in the vertical direction accurately alignment procedures (1) determine the loading position of compression column upper end;
(5) move horizontally the force application location place of described support system to pilot system;
(6) bottom surface loading place that another cutter twisted branch seat is placed in to compression column, the V-type tip that makes described cutter hinged-support in the vertical direction accurately alignment procedures (1) determine the loading position of compression column lower end, then reduce vertical lift system according to the method for step (3), the bottom surface of compression column is contacted 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 reduce described vertical lift system according to the method for step (3), itself and compression column are departed from;
(8) take horizontal shelf away, described support system is shifted out from compression column bottom, then load application 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, stop at arbitrary height, not only successfully solve the vertical stable and rapid alignment problem of compression column in pressurized load test, but also solved the loading location needs of different sizes and different structure compression column;
2, the horizontal shelf that supports compression column in loading positioner of the present invention is connected with the rectangle bolt hole on U-shaped lifter plate by bolt, horizontal shelf can be slided according to the size dimension of compression column fixing on U-shaped lifter plate, has 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 the horizontal shelf that supports compression column in loading positioner is connected with the rectangle bolt hole on U-shaped lifter plate by bolt, at the accurately U-shaped lifter plate of the rear rotation and lifting bolt reduction lifting in location of compression column, the bolt that rotates again fixing horizontal shelf can easily shift out from compression column bottom loading positioner, has 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 that positioner horizontal direction is not moved, and has guaranteed compression column slightly slip due to load action before loading is stable.
5, charger of the present invention is located after compression column is held up, can quick and precisely realize the location of compression column is loaded, and can aim at arbitrarily the loading position of change, more be conducive to the stressed research to compression column, change loading position speed fast, easily realize, location by compression column after loading positioner no longer needs people to hold up, solve compression column because 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, the lighter causes test failure, heavy jeopardize the problem of testing equipment 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 that loading positioner of the present invention is realized the enforcement schematic diagram once loading.
Fig. 6 is that loading positioner of the present invention is realized the enforcement schematic diagram that secondary loads.
In figure:
The 1st, U-shaped lifter plate, the 2nd, roller, the 3rd, bolt hole, the 4th, horizontal shelf, the 5th, set bolt, the 6th, lifting bolt, the 7th, rectangle bolt hole, the 8th, hold-down nut, the 9th, traveling nut, the 10th, level(l)ing bubble, the 11st, belt pulley;
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 recess first loads bearing, the 561st, loads bearing, the 562nd with the V-type first of central through hole, and the V-type with central through hole first does not load bearing, the 57th, loads bearing with second of V-type plush copper, the 567th, cutter hinged-support, the 58th, testing machine or reaction frame, the 59th, jack, the 510th, the axis of post, 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 roller type that the invention provides a kind of post loads positioner, and described loading positioner comprises support system, vertical lift system, moves horizontally and fixed system (referring to Fig. 3,4), wherein:
Described support system is hollow structure, can move arbitrarily in level and vertical direction, remains vertical stable for supporting compression column and ensureing at position fixing process compression column;
Described vertical lift system is used for making compression column move arbitrarily and keep arbitrary height at vertical direction, described vertical lift system comprises U-shaped lifter plate 1, lifting bolt 6, is arranged on four circular bolt holes 3 in four bights of U-shaped lifter plate 1,3 positions, bottom bolts hole of described U-shaped lifter plate 1 arrange the nut 8 identical with bolt hole 3 internal diameter whorls, the top of described lifting bolt 6 is provided with traveling nut 9, the bottom of described lifting bolt 6 is connected with roller 2, and rotation and lifting bolt 6 drives U-shaped lifter plate 1 vertical lifting;
Described moving horizontally with fixed system for compression column is moved arbitrarily in the horizontal direction, and make the support system behind location and the compression column on it keep static.
Described support system comprise monolateral breach U-shaped lifter plate 1, be shelved on two horizontal shelf 4 on U-shaped lifter plate 1, two parallel-segment of described U-shaped lifter plate 1 are provided with rectangle bolt hole 7, described horizontal shelf 4 is fixedly connected with rectangle bolt hole 7 by set bolt 5 and can on U-shaped lifter plate 1, horizontal slip fixes, described two horizontal shelf 4 surround hollow, rectangular frame with two parallel-segment of U-shaped lifter plate 1, and the clear distance between described two horizontal shelf 4 is less than pillar base shelves the length of direction.
The bottom of described lifting bolt is welded with rectangular steel plates, the end face size of the size of rectangular steel plates and roller 2, and bolt hole is left in four bights of rectangular steel plates, and the size of bolt hole and position are corresponding with the hole on roller 2, and roller 2 and lifting bolt are with bolts.
Described roller and one end of lifting bolt adopt and are welded to connect.
Described lifting bolt is provided with belt pulley.
The top of described U-shaped lifter plate is provided with level(l)ing bubble.
Described roller is universal wheel.
Described roller is with stop.
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. 5)
(1) one group of 4 reinforced column 51, its sectional dimension is 200 × 200mm, is highly 2000mm, eccentric throw 512(load position is to the distance of compression column axis) and be respectively 0mm, 30mm, 60mm, 150mm, C30 concrete, the main muscle of post is 420, stirrup is6150, protective layer 15mm, coupled columns carries out bearingtest, the loading position of post is eccentric throw, is respectively: 0mm(axis place), 30mm, 60mm, 150mm.
(2) adjust distance between horizontal shelf 4 and make its clear distance be less than pillar base to shelve the length of direction, the pillar 51 that is 150mm by eccentric throw is placed in support system;
(3) lifting bolt of rotation vertical lift system, makes compression column placed on it 51 flying heights be greater than the height of cutter twisted branch seat 567, is greater than that V-type first with recess loads bearing and the V-type second with plush copper loads bearing stack height sum; In the specific implementation, control the level of U-shaped lifter plate 1 by being arranged on level(l)ing bubble 10 on U-shaped lifter plate, four lifting bolts 6 can rotate in turn or whether level is rotated according to U-shaped lifter plate 1, also can rotate a lifting bolt by belt pulley 11 and drive that other three lifting bolts are synchronous rotates to ensure that U-shaped lifter plate level rises;
(4) a cutter twisted branch seat 567 is put into the end face of pillar, the tip 62 that makes cutter hinged-support V-type groove in the vertical direction accurately alignment procedures (1) determine the loading position of post upper end, this example is the surface that the eccentric throw of post is drawn in to post, and draw vertical line in the most advanced and sophisticated side of V-type of described cutter hinged-support, the most advanced and sophisticated vertical line of 62 sides of V-type and the eccentric throw of post overlap;
(5) move horizontally the force application location place of described support system to pilot system, this example adopts long column testing machine 58 to load, by loading positioner, post is moved to the below of testing machine jack 59, make the center and second of jack load bearing 57 center aligning;
(6) another cutter hinged-support 567 is put into bottom surface loading place of post, the V-type tip 62 that makes equally described cutter hinged-support is in the vertical direction accurately after the loading position of the definite post lower end of alignment procedures (1), reduce U-shaped lifter plate 1 according to the specific implementation method of step (3), the bottom surface of post is contacted with described cutter hinged-support 567; This example is drawn in the eccentric throw of post on the surface of post, and draws vertical line in most advanced and sophisticated 62 sides of V-type of described cutter hinged-support, and the most advanced and sophisticated vertical line of side of V-type and the eccentric throw of post overlap;
(7) realize after the aligning of pillar loading position by step (2)-(6), reducing according to the specific implementation method of step (3) bottom surface that U-shaped lifter plate 1 makes to be supported in the post 51 in horizontal shelf 4 contacts with cutter hinged-support 567, the deadweight of pillar 51 is born by cutter hinged-support 567, so, just, realized the accurately in place of coupled columns loading;
(8) slowly promote jack 59, allow jack 59 under the effect of reaction frame 58 to two ends cutter hinged-support 567 load applications, after post 51 keeps gradually stablizing under the effect of two ends cutter hinged-support 567, the lifting bolt that again rotates vertical lift system reduces U-shaped lifter plate 1, and the bottom surface of itself and post 51 is departed from;
(9) unscrew the hold-down nut 8 of fixing horizontal shelf, get next horizontal shelf 4, described support system just can shift out from the bottom of post 51;
(10) promote jack 59, carry out bearingtest according to " Standard for test methods of concrete structures GB50152-92 " coupled columns 51;
(11) step of repetition 2-10, tests the bearing capacity of different eccentric throw posts (eccentric throw is respectively 0mm, 30mm, 60mm).
Embodiment 2: secondary load test (referring to Fig. 6)
(1) post under load and environment coupled action is carried out to Residual Load Bearing Capacity test. The sectional dimension of reinforced column 51 is 120 × 120mm, high 750mm, and the main muscle of post 51 is 410, stirrup is650-100, protective layer 15mm, the length of the outstanding post in the edge of a wing is 120mm, eccentric throw 512 is 100mm, preformed hole 52 diameters are 32mm, the calculating limit bearing capacity of post 51 is 64kN, pulling force rib 53 is the stainless finish rolling screw thread of diameter 25mm, backing plate 54 diameter 100mm, thick 120mm, material is steel, the diameter of anchor bolt 55 is 55mm, before coupled columns carries out Residual Load Bearing Capacity test, to applied the working load of 300kN by pulling force rib coupled columns, 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 outside the anchor bolt 55 that bearing 561 is enclosed within post 51 bottom surfaces, in this specific embodiment, the described V-type with central through hole first loads one end that bearing 561 contacts with backing plate 54 and is embedded with 4 blocks of magnet, the intensity of magnet enough holds the deadweight of loading bearing 561 with holes, V-type with central through hole first is loaded to bearing 561 to be enclosed within outside anchor bolt 55, first loads bearing 561 just inhales on backing plate 54, adjust the position of described the first loading bearing 561, make described first to load the bearing V-type tip 62 accurate plan loading position 511 of aiming in the vertical direction, in the specific implementation, this example is the surface that eccentric throw 512 is drawn in post by the loading position of post 51 511, and draw vertical line in the first described most advanced and sophisticated 62 sides of V-type that load bearing, the most advanced and sophisticated vertical line of 62 sides of V-type and the eccentric throw of post 512 overlap,
(3) adjust distance between horizontal shelf 4 and make its clear distance be less than pillar base to shelve the length of direction, the post of intending carrying out pressurized tests is placed in support system;
(4) lifting bolt of rotation vertical lift system, makes compression column placed on it 51 flying heights be greater than the height of cutter twisted branch seat 567, is greater than that V-type first with recess loads bearing and the V-type second with plush copper loads bearing stack height sum; In the specific implementation, control the level of U-shaped lifter plate 1 by being arranged on level(l)ing bubble 10 on U-shaped lifter plate, four lifting bolts 6 can rotate in turn or whether level is rotated according to U-shaped lifter plate 1, also can rotate a lifting bolt by belt pulley 11 and drive that other three lifting bolts are synchronous rotates to ensure that U-shaped lifter plate level rises;
(4) a cutter twisted branch seat 567 is put into the end face of pillar, the tip 62 that makes cutter hinged-support V-type groove in the vertical direction accurately alignment procedures (1) determine the loading position of post upper end, this example is the surface that the eccentric throw of post is drawn in to post, and draw vertical line in the most advanced and sophisticated side of V-type of described cutter hinged-support, the most advanced and sophisticated vertical line of 62 sides of V-type and the eccentric throw of post overlap;
(5) another V-type with central through hole first is loaded outside the anchor bolt 55 that 561 bearings are enclosed within post 51 end faces, make the V-type tip 62 of cutter hinged-support accurately aim at and intend loading position 511 in the vertical direction, in the specific implementation, this example is the surface that eccentric throw 512 is drawn in post 51 by the loading position of post 51 511, and draw vertical line in the first described most advanced and sophisticated 62 sides of V-type that load bearing, the most advanced and sophisticated vertical line of 62 sides of V-type and the eccentric throw of post weigh 512 close after, again a V-type with plush copper second is loaded to bearing 57 and put into the V-type recess of described the first loading bearing 561, for preventing that V-type first with recess from loading the slip of bearing 561 when the positioning action, the one end contacting with backing plate 54 at the first described loading bearing 561 is equally embedded with 4 blocks of magnet,
(6) move horizontally and load the force application location place of posting to pilot system, this example adopts reaction frame 58 and jack 59 to load, by loading positioner, post 51 is moved to the below of jack 59, make jack 59 center and load bearing 57 center to 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 the described second V-type plush copper most advanced and sophisticated 62 that loads bearing aim at the first V-type recess tip that loads bearings 561;
(8) by step (2)-(7), now, having realized the loading position of post completely aims at, then reduce U-shaped lifter plate 1 according to the specific implementation method of step (4), be supported on first of horizontal slip gripper shoe 13 upper prop 51 bottom surfaces and load bearing 561 with the second loading bearing 57 while contacting when being adsorbed in, the cutter hinged-support 567 that the deadweight of post 51 is just formed by the first loading bearing 561 and the second loading bearing 57 is born, and so, has just realized the accurately in place of coupled columns loading;
(9) slowly promote jack 59, allow jack 59 under the effect of reaction frame 58 to two ends cutter hinged-support 567 load applications, after post 51 keeps gradually stablizing under the effect of two ends cutter hinged-support 567, again reduce U-shaped lifter plate 1 according to the specific implementation method of step (4), itself and compression column 51 are departed from;
(10) unscrew the bolt of fixing horizontal shelf, get next horizontal shelf, described support system just can shift out from column bottom;
(11) promote jack 59, carry out Residual Load Bearing Capacity test according to " Standard for test methods of concrete structures GB50152-92 " coupled columns.
Claims (10)
1. the roller type of post loads a positioner, it is characterized in that, described loading positioner comprises support system, vertical lift system, moves horizontally and fixed system, wherein:
Described support system is hollow structure, can move arbitrarily in level and vertical direction, remains vertical stable for supporting compression column and ensureing at position fixing process compression column;
Described vertical lift system is used for making compression column move arbitrarily and keep arbitrary height at vertical direction, described vertical lift system comprises U-shaped lifter plate (1), lifting bolt (6), be arranged on four circular bolt holes (3) in four bights of U-shaped lifter plate (1), the quantity of described lifting bolt (6) is 4, circular bolt holes (3) position of the bottom of described U-shaped lifter plate (1) arranges the nut (8) identical with circular bolt holes (3) internal diameter whorl, the top of described lifting bolt (6) is provided with traveling nut (9), the bottom of described lifting bolt (6) is connected with roller (2), rotation and lifting bolt (6) drives U-shaped lifter plate (1) vertical lifting,
Described moving horizontally with fixed system for compression column is moved arbitrarily in the horizontal direction, and make the support system behind location and the compression column on it keep static.
2. the roller type of post according to claim 1 loads positioner, it is characterized in that, described support system comprises the U-shaped lifter plate (1) of monolateral breach, be shelved on two horizontal shelf (4) on U-shaped lifter plate (1), two parallel-segment of described U-shaped lifter plate (1) are provided with rectangle bolt hole (7), described horizontal shelf (4) is fixedly connected with rectangle bolt hole (7) and can fixes in the upper horizontal slip of U-shaped lifter plate (1), described two horizontal shelf (4) surround hollow, rectangular frame with two parallel-segment of U-shaped lifter plate (1), clear distance between described two horizontal shelf (4) is less than pillar base shelves the length of direction.
3. the roller type of post according to claim 1 and 2 loads positioner, it is characterized in that, the bottom of described lifting bolt (6) is welded with rectangular steel plates, bolt hole is left in four bights of rectangular steel plates, the size of bolt hole and position are corresponding with the hole on roller (2), and roller (2) is connected with lifting bolt (6).
4. the roller type of post according to claim 1 and 2 loads positioner, it is characterized in that, described roller (2) and one end of lifting bolt (6) adopt and be welded to connect.
5. the roller type of post according to claim 1 and 2 loads positioner, it is characterized in that, described lifting bolt (6) is provided with belt pulley (11).
6. the roller type of post according to claim 1 and 2 loads positioner, it is characterized in that, the top of described U-shaped lifter plate (1) is provided with level(l)ing bubble (10).
7. the roller type of post according to claim 1 and 2 loads positioner, it is characterized in that, described roller is universal wheel.
8. the roller type of post according to claim 7 loads positioner, it is characterized in that, described roller is with stop.
9. the roller type of post according to claim 5 loads the loading method of positioner, it is characterized in that:
(1) determine the loading position of compression column upper and lower end;
(2) adjust distance between horizontal shelf (4) and make its clear distance be less than pillar base to shelve the length of direction, the pillar of intending carrying out pressurized tests is placed in support system;
(3) lifting bolt (6) of rotation vertical lift system, drive the synchronous rotation of other three lifting bolts (6) to rise to ensure U-shaped lifter plate level by one of belt pulley (11) rotation, make 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, the V-type tip that makes described cutter hinged-support in the vertical direction accurately alignment procedures (1) determine the loading position of compression column upper end;
(5) move horizontally the force application location place of described support system to pilot system;
(6) bottom surface loading place that another cutter twisted branch seat is placed in to compression column, the V-type tip that makes described cutter hinged-support in the vertical direction accurately alignment procedures (1) determine the loading position of compression column lower end, then reduce vertical lift system according to the method for step (3), the bottom surface of compression column is contacted 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 reduce described vertical lift system according to the method for step (3), itself and compression column are departed from;
(8) take horizontal shelf (4) away, described support system is shifted out from compression column bottom, then load application carries out mechanical property test to compression column.
10. the roller type of post according to claim 6 loads the loading method of positioner, it is characterized in that:
(1) determine the loading position of compression column upper and lower end;
(2) adjust distance between horizontal shelf (4) and make its clear distance be less than pillar base to shelve the length of direction, the pillar of intending carrying out pressurized tests is placed in support system;
(3) lifting bolt of rotation vertical lift system, control the level of U-shaped lifter plate (1) by level(l)ing bubble (10), four lifting bolts rotate in turn or whether level is rotated according to U-shaped lifter plate, make 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, the V-type tip that makes described cutter hinged-support in the vertical direction accurately alignment procedures (1) determine the loading position of compression column upper end;
(5) move horizontally the force application location place of described support system to pilot system;
(6) bottom surface loading place that another cutter twisted branch seat is placed in to compression column, the V-type tip that makes described cutter hinged-support in the vertical direction accurately alignment procedures (1) determine the loading position of compression column lower end, then reduce vertical lift system according to the method for step (3), the bottom surface of compression column is contacted 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 reduce described vertical lift system according to the method for step (3), itself and compression column are departed from;
(8) take horizontal shelf (4) away, described support system is shifted out from compression column bottom, then load application carries out mechanical property test to compression column.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410004379.3A CN103728177B (en) | 2014-01-01 | 2014-01-01 | A kind of roller type of post loads positioner and loads localization method |
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| CN201410004379.3A CN103728177B (en) | 2014-01-01 | 2014-01-01 | A kind of roller type of post loads positioner and loads localization method |
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| CN103728177B true CN103728177B (en) | 2016-05-11 |
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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 |
| CN108189207A (en) * | 2017-09-30 | 2018-06-22 | 佛山市鸥歌陶瓷有限公司 | A kind of Production of Ceramics solarization base placing table |
| CN109387384B (en) * | 2018-10-22 | 2023-12-29 | 绍兴文理学院元培学院 | Automatic bidirectional counterforce frame |
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| PT2723955T (en) * | 2011-06-22 | 2021-09-29 | Form 700 Pty Ltd | Formwork support improvements |
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