CN103728178B - A kind of inflatable of post loads locating device and loads localization method - Google Patents
A kind of inflatable of post loads locating device and loads localization method Download PDFInfo
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- CN103728178B CN103728178B CN201410004387.8A CN201410004387A CN103728178B CN 103728178 B CN103728178 B CN 103728178B CN 201410004387 A CN201410004387 A CN 201410004387A CN 103728178 B CN103728178 B CN 103728178B
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Abstract
The present invention relates to structural test field, be specifically related to the loading locating device of compressed column test in a kind of civil engineering work, be specially adapted to the second load of compression column under load and environment coupled action.Load locating device comprise by " work " type lower shoe, " work " vertical lift system that form of type upper plate, the air bag of SEN, gas-filled tube, bleeder pipe, non-return valve, inflator pump, vertical guide rod, vertical guide pin bushing and limited block, and location auxiliary frame and moving horizontally and fixed system.Device quick and precisely disposable and stable alignment can preset loading position arbitrarily, load locating device not only can freely move horizontally, but also can free VTOL (vertical take off and landing), the loading demand of the compression column of different size and different structure can be met, ensure that compression column remains vertical stable in position fixing process.
Description
Technical field
The present invention relates to civil engineering structure test field, be specifically related to the loading locating device of compressed column test in a kind of civil engineering work and load localization method, being specially adapted to the second load of compression column under load and environment coupled action.
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.In order to accurate simulation test piece end constraint condition and the accuracy ensureing loading position, usually adopt cutter strand or ball twisted branch seat, because cutter strand or ball twisted branch seat are line or point cantact, therefore it has instability (as shown in Figure 1), when testing in place, by people, pillar must be buttressed guarantee pillar and vertically not toppling 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 loading position that how rapid alignment is preset always to be a difficult problem in structural test.
At present, the method generally adopted is artificial righting and aligning, and lifted on testing table or universal testing machine operating platform by compression column by operating personnel, then righting is while adjust lifting jack, is added on compression column by load while aligning.This method needs numerous labours, general 4-5 people, and aims at difficulty especially greatly, and frequent needs repeatedly could be aimed at.In addition, because compression column yardstick is large, weight is large, and be again work high above the ground, namely compression column can topple over unless you give your whole attention to it, and the lighter causes test failure, heavy then jeopardize the safety of testing equipment and personnel.
Summary of the invention
Loading position cannot be preset by rapid alignment in prior art, need numerous labour, mobile difficulty is large, the defect such as easily to topple over, problem to be solved by this invention is to provide one can be disposable, quick and precisely and stable alignment presets the loading locating device of loading position (line or a point) arbitrarily, described loading locating device not only can freely move horizontally, but also can free VTOL (vertical take off and landing), the loading demand of the compression column of different size and different structure can be met, 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, lifted on testing table or universal testing machine operating platform by compression column by operating personnel, then righting is while adjust lifting jack, is added on compression column by load while aligning.This method generally needs numerous labours, and aligning difficulty is large especially.Loading locating device of the present invention adopts hollow structure to be held up from bottom by compression column, make compression column unsettled, the vertical stability of compression column is ensured by two pieces of horizontal slip back up pads, because it is in vacant state, therefore, no matter be tangential movement or VTOL (vertical take off and landing), compression column all keeps vertical stablizing not topple over.
The technical solution adopted for the present invention to solve the technical problems is:
The inflatable of post loads a locating device, and described loading locating device comprises vertical lift system, location auxiliary frame, moves horizontally and fixed system (see Fig. 3,4,5,6), wherein:
Described location auxiliary frame is hollow structure, can in level and vertical direction movement arbitrarily, for supporting compression column and ensureing that compression column remains vertical stable in loading position fixing process;
Described horizontal movement system and fixed system are for making compression column move arbitrarily in the horizontal direction and the location auxiliary frame after making location and the compression column on it keep static;
Described vertical lift system is used for making compression column move arbitrarily at vertical direction and keep arbitrary height, and described vertical lift system comprises " work " type lower shoe, " work " type upper plate, the air bag of SEN, gas-filled tube, bleeder pipe, non-return valve, inflator pump, vertical guide rod, vertical guide pin bushing and limited block; Described air bag (see Fig. 6) is arranged in " work " type lower shoe and " work " between type upper plate and with upper " work " type lower shoe compact siro spinning technology, the surrounding of described air bag is reductus shape, extend during inflation, shrink during venting, one end of described gas-filled tube connects the air bag other end and connects inflator pump, one end of described bleeder pipe connects the air bag other end freely, described non-return valve is arranged on gas-filled tube and bleeder pipe, described vertical guide rod is arranged in " work " four bights of type lower shoe end face, the location arrangements of the corresponding guide rod of described vertical guide pin bushing exists " work " on type upper plate.
Described vertical guide rod and the function of vertical guide pin bushing be vertical guide rod with " work " type lower shoe is connected, vertical guide pin bushing with " work " type upper plate is connected, after vertical guide pin bushing penetrates four vertical guide rods, " work " type upper plate can overall maintenance level and not offseting when vertical Enhance Sports." work " type lower shoe, " work " function one of type upper plate is convenient fixing vertical guide rod, guide pin bushing and ball; Two be before compression column is in place and in place after can easily from shift-in bottom compression column and shifting out.The function one of SEN air bag (see Fig. 6) is to realize " work " lifting of type upper plate; Two be after SEN is set before compression column is in place and in place after can easily from shift-in bottom compression column and shifting out.The function one of non-return valve is to ensure gas only along a direction flowing, improves the efficiency of inflation and venting; Two is close non-return valve, and gas no longer flows, thus can ensure connection and air bag " work " type upper plate keeps static.Air bag surrounding is that the function of reductus shape is to realize the flexible needs of air bag height.By with vertical guide pin bushing " work " type upper plate is enclosed within vertical guide rod " work " on type lower shoe, close the non-return valve on bleeder pipe, inflator pump is inflated, air bag rise drive " work " and type upper plate vertically guide rod move vertically upward, close non-return valve, air bag is no longer inflated, " work " stop motion of type upper plate keeps certain height, slowly unscrew the non-return valve on bleeder pipe, gas in air bag is released air bag and is reduced, air bag reduce drive on it " work " and type upper plate vertically guide rod move vertically downward, thus realize " work " lifting vertically of type upper plate.
Compression column is placed on described location auxiliary frame, described location auxiliary frame height is greater than the height of cutter hinged-support, moving horizontally described location auxiliary frame makes the compression column on it arrive the loading position preset, vertical lift system described in reduction 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 preset, to compression column load application make compression column keep under the effect of two ends cutter hinged-support stable after, continue the vertical lift system described in reducing, itself and compression column are departed from, then described location auxiliary frame is shifted out, load application coupled columns carries out mechanical property test.
Described cutter hinged-support is loaded bearing by the V-type with recess first and is with the V-type second of plush copper to load bearing and forms, the V-type first of described band recess loads the V-type first that bearing is selected from central through hole and loads bearing and do not load bearing with first of central through hole, after the V-type plush copper that described second loads bearing is put into the V-type recess of the first loading bearing, the superposition 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, when compression column carries out second load under to load and environment coupled action, select the first loading bearing and second of band central through hole to load the cutter twisted branch seat of bearing combination composition, other load condition selects the cutter twisted branch seat not loading bearing and the second loading bearing combination composition with first of central through hole.The V-type tip of described cutter hinged-support is the V-type tip of the second loading bearing.
As preferably, inflatable of the present invention loads moving horizontally of locating device and comprises with fixed system " work " type lower shoe and be evenly distributed on " work " ball in type lower shoe four bights, described ball is embedded in " work " type lower shoe can move along any direction, described ball has lock function.The function of ball is the movement arbitrarily of implement device horizontal direction.
As preferably, the inflator pump that inflatable of the present invention loads locating device is foot-operated or hand or electrodynamic type.
As preferably, the inflatable of the present invention limited block loaded described in locating device is on four guide rods being set in of circular cylinder body, or described limited block is that rectangular parallelepiped block is laid in " work " four bights of type lower shoe 11, the height of described limited block 38 be not less than air bag 31 discharge gas after height.The function of described limited block is to limit " work " minimum descent altitude of type upper plate 12.
As preferably, the location auxiliary frame that inflatable of the present invention loads locating device comprises " work " type upper plate, horizontal slip back up pad and level " ⊥ " chute, described level " ⊥ " chute is located at " work " two parallel ends of type upper plate, the two ends of described level " ⊥ " chute have circular port, and described horizontal slip back up pad two ends are provided with " ⊥ " connector (see Fig. 7)." ⊥ " connector penetrates from the circular port at the two ends of horizontal concrete chute, distance between two horizontal slip back up pads is adjusted to meet the pillar of support different cross section size by horizontal slip in chute, the function of the two ends circular port of described horizontal concrete chute is that " ⊥ " connector can penetrate level " ⊥ " chute, the function of level " ⊥ " chute is that " ⊥ " connector does not only move up and down in " ⊥ " chute tangential movement in guarantee horizontal slip back up pad, described two pieces of horizontal slip back up pads with " work " and type upper plate 12 two parallel-segment surround hollow, rectangular frame, clear distance between described two pieces of horizontal slip back up pads is less than the length that direction is shelved on pillar base, for shelf test post, described two pieces of horizontal slip back up pads are guaranteed that pillar is vertically stable and are not toppled over.
As preferably, the air bag that inflatable of the present invention loads described in locating device can be replaced with pneumatic element, and described pneumatic element exists " work " type lower shoe arranges (see Figure 10) in pairs symmetrically.Function arranged in pairs be ensure pneumatic element rise and fall time expulsive force symmetrically and evenly.
Preferred, the inflatable of the present invention pneumatic element arranged symmetrically in pairs loaded described in locating device adopts parallel form to connect.The function be connected in parallel is to ensure the air inlet of each pneumatic element cylinder and gives vent to anger identical, and then ensures that the piston rod of pneumatic element can synchronously rise and decline.
Preferred, the pneumatic element arranged symmetrically in pairs that inflatable of the present invention loads described in locating device is single action cylinder, and during inflation, when piston rod rising, venting, piston rod declines.
Preferred, the pneumatic element arranged symmetrically in pairs that inflatable of the present invention loads described in locating device is double-acting cylinder, when inflate to gas-filled tube piston rod rise, piston rod decline when inflating to bleeder pipe.When adopting this pneumatic element, the position being connected inflator at gas-filled tube with bleeder pipe arranges a cross-over valve (see Figure 11), its function is to transform the inflation of gas-filled tube and bleeder pipe as required, the inflation to gas-filled tube and bleeder pipe can be realized with an inflator pump, save an inflator pump.
The present invention loads the principle schematic of locating device see Fig. 2, and its principle is: arrange two pieces of horizontal slip back up pads in the bottom of compression column, and compression column is shelved in horizontal slip back up pad, compression column entirety is held up by horizontal slip back up pad.Horizontal slip back up pad is arranged on the bottom surface two ends of compression column, therefore ensure that the vertical stable of compression column, distance between horizontal slip back up pad can adjust arbitrarily with the needs of the different size compression column of satisfied support, the height of horizontal slip back up pad can be elevated arbitrarily the needs meeting differing heights cutter hinged-support, horizontal slip back up pad can level move with the needs meeting any loading position of rapid alignment arbitrarily, namely loading locating device of the present invention can hold up compression column and arrive three-dimensional optional position, therefore the quick and precisely location that compression column is loaded easily is achieved, and do not need people to hold up.During test, only need adjust the distance between horizontal slip back up pad, compression column is held on horizontal slip back up pad, by the height of vertical lift system adjustment horizontal slip back up pad, make the bottom surface of support compression column thereon higher than cutter hinged-support certain distance (can be generally 5-20 millimeter), to ensure that horizontal slip back up pad can the accessible movement of level, by moving horizontally with fixed system slow mobile and horizontal sliding support plate in surface level, to make the plan loading position of support compression column thereon accurately aim at the V-type of cutter hinged-support in the vertical direction most advanced and sophisticated, then reducing jacking system makes the bottom surface of the compression column be supported in horizontal slip back up pad contact with cutter hinged-support, the deadweight of compression column is born by cutter hinged-support, so, just the accurate location to compression column load test is achieved.
Based on loading locating device 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 post, i.e. eccentric throw, described eccentric throw is the distance of load position to mast axis;
(2) pillar of intending carrying out pressurized tests is placed on the auxiliary frame of location;
(3) non-return valve on bleeder pipe 33 is closed, inflator pump 35 is inflated, air bag 31 rise drive " work " and type upper plate 12 vertically guide rod move vertically upward, when pillar flying height placed on it is greater than the height of cutter twisted branch seat (V-type first being greater than band recess loads bearing and is with second of V-type plush copper to load bearing superposition height sum), close the non-return valve 33 on gas-filled tube 32, air bag 31 is no longer inflated, " work " type upper plate 12 stop motion keeps certain height;
(4) a cutter twisted branch seat is put into the end face of pillar, the tip of cutter hinged-support V-type groove is accurately aimed in the vertical direction and intends loading position;
(5) the force application location place of described location auxiliary frame to pilot system is moved horizontally;
(6) another cutter twisted branch seat is put into bottom surface loading place of pillar, makes the tip of cutter hinged-support V-type groove accurately aim in the vertical direction equally and intend loading position;
(7) after realizing the aligning to pillar loading position by step (2)-(6), unscrew the non-return valve on bleeder pipe 33, gas in air bag 31 is released air bag 31 and is reduced, air bag 31 reduce drive on it " work " and type upper plate vertically guide rod 36 move vertically downward, when the bottom surface being supported in the pillar in horizontal slip back up pad 13 contacts with cutter hinged-support, the deadweight of pillar is born by cutter hinged-support, closes the non-return valve 34 on bleeder pipe 33;
(8) to compression column load application make compression column keep under the effect of two ends cutter hinged-support stable after, the non-return valve 34 again slowly unscrewed on bleeder pipe 33 reduces " work " type upper plate 12, itself and compression column are departed from;
(9) slip horizontal slip back up pad is to the circular port at chute two ends, gets next horizontal slip back up pad, and described location auxiliary frame just can shift out bottom pillar.
Beneficial effect of the present invention is mainly manifested in:
1, loading locating device of the present invention not only can move horizontally, but also can freely be elevated, stop at arbitrary height, not only successfully solve the vertical stable and rapid alignment problem of compression column in pressurized load test, but also solve the loading location needs of different size and different structure compression column.
2, the horizontal slip back up pad supporting compression column in loading locating device of the present invention adjusts distance between two horizontal slip back up pads to meet the pillar of support different cross section size by horizontal slip in chute, successfully solves the loading location needs of different size and difformity compression column.
3, loading locating device own wt of the present invention is light, volume is little, and the horizontal slip back up pad supporting compression column in loading locating device is penetrated from the circular port at horizontal concrete chute two ends by " ⊥ " connector, to exit after compression column is accurately located reduction " work " type upper plate, horizontal slip back up pad can easily be taken off to the circular port at chute two ends by horizontal slip back up pad of sliding again, and then load locating device and just conveniently can shift out bottom compression column, successfully eliminate the impact on test of locating device and hoistable platform.
4, loading locating device of the present invention makes it not rotate by locking ball, ensures that locating device horizontal direction is not moved, and ensure that compression column slightly slided due to load action before loading is stable.
5, charger of the present invention is located after being held up by compression column, can quick and precisely realize loading the location of compression column, and the loading position of change can be aimed at arbitrarily, more be conducive to the stressed research to compression column, change loading position speed fast, easy realization, people is no longer needed to hold up by the location of compression column after loading locating device, solve compression column due to yardstick large, weight is large, and be again work high above the ground, namely compression column can topple over unless you give your whole attention to it, the lighter causes test failure, heavy then jeopardize the problem of testing equipment and personal security.
Accompanying drawing explanation
Fig. 1 is the loading location structure schematic diagram of prior art center pillar.
Fig. 2 is the inventive principle schematic diagram of loading locating device of the present invention.
Fig. 3 is the structural representation of loading locating device of the present invention.
Fig. 4 is the side structure schematic diagram of loading locating device of the present invention.
Fig. 5 is the top surface structure schematic diagram of loading locating device of the present invention.
Fig. 6 is the floor plan schematic diagram of air bag of the present invention.
Fig. 7 be horizontal slip back up pad of the present invention with " work " the sliding connection structure schematic diagram of type upper plate.
Fig. 8 is the enforcement schematic diagram that loading locating device of the present invention realizes once loading.
Fig. 9 is the enforcement schematic diagram that loading locating device of the present invention realizes second load.
Figure 10 is the floor plan schematic diagram of pneumatic element of the present invention.
Figure 11 is the floor plan schematic diagram of cross-over valve of the present invention.
In figure:
11 are " work " type lower shoe, 12 is " work " type upper plate, 13 are horizontal slip back up pads, 14 are level " ⊥ " chutes, 15 are " ⊥ " connectors, 16 is circular ports;
31 are air bags, 32 of SEN are gas-filled tubes, 33 are bleeder pipes, 34 are non-return valve, 35 are inflator pumps, 36 are vertical guide rods, 37 is vertical guide pin bushings, and 38 are limited blocks, 39 are pneumatic elements, 40 is conversion valve;
21 is balls;
51 are posts, 52 are preformed holes, 53 are pulling force ribs, 54 are backing plates, 55 is anchor bolts, 56 is that to load bearing, 561 be that to load bearing, 562 with the V-type first of central through hole be that to load bearing, 57 be that second of band V-type plush copper loads bearing for V-type first not with central through hole for the V-type first of band recess, 567 is cutter hinged-supports, 58 be testing machine or reaction frame, 59 is lifting jack, 510 is axis of post, 511 is load positions, and 512 is eccentric throws.
61 is central through holes of the first loading bearing, and 62 is that the V-type of cutter hinged-support is most advanced and sophisticated.
Embodiment
The inflatable that the invention provides a kind of post loads locating device, and described loading locating device comprises vertical lift system, location auxiliary frame, moves horizontally and fixed system (see Fig. 3,4,5), wherein:
Described location auxiliary frame is hollow structure, can in level and vertical direction movement arbitrarily, for supporting compression column and ensureing that compression column remains vertical stable in loading position fixing process;
Described horizontal movement system and fixed system are for making compression column move arbitrarily in the horizontal direction and the location auxiliary frame after making location and the compression column on it keep static;
Described vertical lift system is used for making compression column move arbitrarily at vertical direction and keep arbitrary height, and described vertical lift system comprises " work " type lower shoe 11, " work " type upper plate 12, the air bag 31 of SEN, gas-filled tube 32, bleeder pipe 33, non-return valve 34, inflator pump 35, vertical guide rod 36, vertical guide pin bushing 37 and limited block 38, described air bag 31 is arranged in " work " type lower shoe 11 and " work " between type upper plate 12 and with upper " work " type lower shoe compact siro spinning technology, the surrounding of described air bag is reductus shape, extend during inflation, shrink during venting, one end of described gas-filled tube connects air bag 31 other end and connects inflator pump 35, one end of described bleeder pipe 32 connects air bag 31 other end freely, described non-return valve 34 is arranged on gas-filled tube 32 and bleeder pipe 33, described vertical guide rod 36 is arranged in " work " four bights of type lower shoe 11 end face, the location arrangements of the corresponding guide rod 36 of described vertical guide pin bushing 37 exists " work " on type upper plate 12.
Wherein:
Described moving horizontally comprises with fixed system " work " type lower shoe 11 and be evenly distributed on " work " ball 21 in type lower shoe 11 4 bights, described ball 21 is embedded in " work " type lower shoe 11 can move along any direction, described ball 21 has lock function.
Described inflator pump 35 is foot-operated or hand or electrodynamic type.
On four guide rods 36 that described limited block 38 is set in for circular cylinder body, or described limited block 38 is laid in for rectangular parallelepiped block " work " four bights of type lower shoe 11, the height of described limited block 38 be not less than air bag 31 discharge gas after height.
Described location auxiliary frame comprises " work " type upper plate 12, horizontal slip back up pad 13 and level " ⊥ " chute 14, described level " ⊥ " chute is located at " work " two parallel ends of type upper plate, the two ends of described level " ⊥ " chute have circular port 16, and described horizontal slip back up pad two ends are provided with " ⊥ " connector 15.
Described air bag 31 is pneumatic element 39, and described pneumatic element 39 exists " work " type lower shoe 11 is arranged in pairs symmetrically.
The described pneumatic element 39 arranged symmetrically in pairs adopts parallel form to connect.
The described pneumatic element arranged symmetrically is in pairs single action cylinder.
The described pneumatic element arranged symmetrically is in pairs double-acting cylinder.
Illustrate below and utilize loading locating device of the present invention to realize the load test of post.
Embodiment 1: load test (see Fig. 8)
(1) one group of 4 reinforced column 51, its sectional dimension is 200 × 200mm, is highly the distance of 2200mm, eccentric throw 512(load position to compression column axis) being respectively 0mm, 20mm, 40mm, 100mm, C30 concrete, the main muscle of post is 4
20, stirrup is
6150, protective seam 15mm, coupled columns 51 carries out bearingtest, and the loading position of post is eccentric throw 512, is namely respectively: 0mm(axis place), 20mm, 40mm, 100mm.
(2) pillar 51 being 100mm by the eccentric throw of intending carrying out pressurized tests is placed on the auxiliary frame of location;
(3) non-return valve on bleeder pipe 33 is closed, inflator pump 35 is inflated, air bag 31 rise drive " work " and type upper plate 12 vertically guide rod 36 move vertically upward, when pillar flying height placed on it is greater than the height of cutter twisted branch seat (V-type first being greater than band recess loads bearing and is with second of V-type plush copper to load bearing superposition height sum), close non-return valve 34, air bag 31 is no longer inflated, " work " type upper plate 12 stop motion keeps certain height;
(4) a cutter twisted branch seat 567 is put into the end face of pillar, make the tip 62 of 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 eccentric throw of post being drawn in post, and draw vertical line in the most advanced and sophisticated side of the V-type of described cutter hinged-support, the vertical line of most advanced and sophisticated 62 sides of V-type and the eccentric throw of post overlap;
(5) the force application location place of described location auxiliary frame to pilot system is moved horizontally, this example adopts long column testing machine 58 to load, namely by loading locating device, post is moved to the below of testing machine lifting jack 59, the center making the center of lifting jack and second load bearing 57 is aimed at;
(6) another cutter hinged-support 567 is put into bottom surface loading place of post, after making the V-type tip 62 of the described cutter hinged-support loading position of post lower end that accurately alignment procedures (1) is determined in the vertical direction equally, slowly unscrew the non-return valve 34 on bleeder pipe 33, reduce vertical lift system, the bottom surface of post is contacted with described cutter hinged-support 567; The eccentric throw of post is drawn in the surface of post by this example, and draws vertical line in most advanced and sophisticated 62 sides of the V-type of described cutter hinged-support, and the vertical line of the most advanced and sophisticated side of V-type and the eccentric throw of post overlap;
(7) after realizing the aligning to pillar loading position by step (2)-(6), slowly unscrew the non-return valve 34 on bleeder pipe 33, gas in air bag 31 is released, air bag 31 reduces, air bag 31 reduce drive on it " work " and type upper plate 12 vertically guide rod 36 move vertically downward, when the bottom surface of the pillar 51 be supported in horizontal slip back up pad 13 contacts with cutter hinged-support 567, the deadweight of pillar 51 is born by cutter hinged-support 567, closes the non-return valve 34 on bleeder pipe 33;
(8) slowly lifting jack 59 is promoted, allow lifting jack 59 under the effect of reaction frame 58 to two ends cutter hinged-support 567 load application, post 51 keep gradually under the effect of two ends cutter hinged-support 567 stable after, the non-return valve 34 again slowly unscrewed on bleeder pipe 33 reduces " work " type upper plate 12, itself and compression column 51 are departed from;
(9) circular port 16 at slip horizontal slip back up pad 13 to chute two ends, gets next horizontal slip back up pad 13, and described location auxiliary frame just can shift out bottom pillar 51.
(10) promote lifting jack 59, carry out bearingtest according to " Standard for test methods of concrete structures GB50152-92 " coupled columns 51;
(11) repeat step (2)-(10), the bearing capacity of different eccentric throw post (eccentric throw is respectively 0mm, 20mm, 40mm) is tested.
Embodiment 2: second load test (see Fig. 9)
(1) carry out Residual Load Bearing Capacity test to the post 51 under load and environment coupled action: the sectional dimension of reinforced column 51 is 120 × 120mm, high 750mm, the main muscle of post 51 is 4
10, stirrup is
650-100, protective seam 15mm, the length that post is given prominence on the edge of a wing is 120mm, eccentric throw 512 is 100mm, preformed hole 52 diameter is 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 the working load being applied with 300kN by pulling force rib coupled columns, and post 51 is placed the actual working state of 365 days model configurations at artificial environment simulation box;
(2) V-type with central through hole first being loaded bearing 561 is enclosed within outside the anchor bolt 55 of post 51 bottom surface, 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, the described V-type with central through hole first is loaded bearing 561 to be enclosed within outside anchor bolt 55, described first loads bearing 561 just inhales on backing plate 54, adjust the position that described first loads bearing 561, make described first to load bearing V-type tip 62 and accurately aim at plan loading position 511 in the vertical direction, in the specific implementation, the loading position 511 of post 51 i.e. eccentric throw 512 is drawn in the surface of post by this example, and draw vertical line in the described first most advanced and sophisticated 62 sides of V-type loading bearing, the most advanced and sophisticated vertical line of 62 sides of V-type and the eccentric throw 512 of post overlap,
(3) post of intending carrying out pressurized tests is placed on the auxiliary frame of location;
(4) non-return valve on bleeder pipe 33 is closed, inflator pump 35 is inflated, air bag 31 rise drive " work " and type upper plate 12 vertically guide rod 36 move vertically upward, when pillar 51 flying height placed on it is greater than the height of cutter twisted branch seat 567 (V-type first being greater than band recess loads bearing 561 and is with second of V-type plush copper to load bearing 57 and superposes height sum), close non-return valve 34, air bag 31 is no longer inflated, " work " type upper plate 12 stop motion keeps certain height;
(5) another V-type with central through hole first being loaded 561 bearings is enclosed within outside the anchor bolt 55 of post 51 end face, the V-type tip 62 of cutter hinged-support is accurately aimed in the vertical direction and intends loading position 511, in the specific implementation, the loading position 511 of post 51 i.e. eccentric throw 512 is drawn in the surface of post 51 by this example, and draw vertical line in the described first most advanced and sophisticated 62 sides of V-type loading bearing, after the most advanced and sophisticated vertical line of 62 sides of V-type and the eccentric throw of post weigh 512 conjunctions, again the V-type second of a band plush copper is loaded bearing 57 and put into the V-type recess that described first loads bearing 561, the slip of bearing 561 when positioning action is loaded for preventing from being with the V-type first of recess, the one end contacted with backing plate 54 at the described first loading bearing 561 is equally embedded with 4 blocks of magnet,
(6) the force application location place of loading posting to pilot system is moved horizontally, this example adopts reaction frame 58 and lifting jack 59 to load, namely by loading locating device, post 51 is moved to the below of lifting jack 59, the center making lifting jack 59 and the center loading bearing 57 are aimed at;
(7) V-type second of another band plush copper is loaded the bottom surface that bearing 57 is put into post 51, the V-type recess making the described second most advanced and sophisticated 62 alignings first of V-type plush copper loading bearing load bearing 561 is most advanced and sophisticated;
(8) by step (2)-(7), now, the loading position having fully achieved post is aimed at, slowly unscrew the non-return valve 34 on bleeder pipe 33, gas in air bag 31 is released, air bag 31 reduces, air bag 31 reduce drive on it " work " and type upper plate 12 vertically guide rod 36 move vertically downward, when be adsorbed in be supported on horizontal slip back up pad 13 upper prop 51 bottom surface first load bearing 561 and second load bearing 57 contact time, 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, close the non-return valve 34 on bleeder pipe 33, so, just the accurately in place of coupled columns loading is achieved,
(9) slowly lifting jack 59 is promoted, allow lifting jack 59 under the effect of reaction frame 58 to two ends cutter hinged-support 567 load application, post 51 keep gradually under the effect of two ends cutter hinged-support 567 stable after, again pass through the slowly non-return valve 34 unscrewed on bleeder pipe 33 to reduce " work " type upper plate 12, itself and compression column 51 are departed from;
(10) circular port 16 at slip horizontal slip back up pad 13 to chute two ends, gets next horizontal slip back up pad 13, and described location auxiliary frame just can shift out bottom pillar 51;
(11) promote lifting jack 59, carry out Residual Load Bearing Capacity test according to " Standard for test methods of concrete structures GB50152-92 " coupled columns 51.
Above-described embodiment is only not used in for illustration of the present invention and limits the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (9)
1. the inflatable of post loads a locating device, it is characterized in that, described loading locating device comprises vertical lift system, location auxiliary frame and moves horizontally and fixed system, wherein:
Described location auxiliary frame is hollow structure, can in level and vertical direction movement arbitrarily, for supporting compression column and ensureing that compression column remains vertical stable in loading position fixing process; Described location auxiliary frame comprises " work " type upper plate (12), horizontal slip back up pad (13) and level " ⊥ " chute (14), described level " ⊥ " chute is located at " work " two parallel ends of type upper plate, the two ends of described level " ⊥ " chute have circular port (16), and described horizontal slip back up pad two ends are provided with " ⊥ " connector (15); Described compression column is shelved in horizontal slip back up pad;
Described move horizontally with fixed system for compression column is moved arbitrarily in the horizontal direction and for make the location auxiliary frame behind location and its on compression column keep static;
Described vertical lift system is used for making compression column move arbitrarily at vertical direction and keep arbitrary height, and described vertical lift system comprises " work " type lower shoe (11), described " work " type upper plate (12), the air bag (31) of SEN, gas-filled tube (32), bleeder pipe (33), non-return valve (34), inflator pump (35), vertical guide rod (36), vertically guide pin bushing (37) and limited block (38), described air bag (31) to be arranged between " work " type lower shoe (11) and " work " type upper plate (12) and with in " work " type, lower shoe compact siro spinning technology, the surrounding of described air bag is reductus shape, extend during inflation, shrink during venting, one end of described gas-filled tube connects air bag (31) other end and connects inflator pump (35), one end of described bleeder pipe (32) connects air bag (31) other end freely, described non-return valve (34) is arranged on gas-filled tube (32) and bleeder pipe (33), described vertical guide rod (36) is arranged in four bights of " work " type lower shoe (11) end face, the location arrangements of the corresponding guide rod of described vertical guide pin bushing (37) (36) is in " work " type upper plate (12).
2. the inflatable of post according to claim 1 loads locating device, it is characterized in that: described in move horizontally the ball (21) comprising described " work " type lower shoe (11) with fixed system and be evenly distributed on " work " type lower shoe (11) four bights, described ball (21) is embedded in " work " type lower shoe (11) and goes up and can move along any direction, and described ball (21) has lock function.
3. the inflatable of post according to claim 1 and 2 loads locating device, it is characterized in that: described inflator pump (35) is foot-operated or hand or electrodynamic type.
4. the inflatable of post according to claim 1 and 2 loads locating device, it is characterized in that: the upper or described limited block (38) of four guide rods (36) that described limited block (38) is set in for circular cylinder body is laid in four bights of " work " type lower shoe (11) for rectangular parallelepiped block, the height of described limited block (38) be not less than air bag (31) discharge gas after height.
5. the inflatable of post according to claim 1 and 2 loads locating device, it is characterized in that: described air bag (31) can be replaced pneumatic element (39), described pneumatic element (39) is above arranged in pairs symmetrically in " work " type lower shoe (11).
6. the inflatable of post according to claim 5 loads locating device, it is characterized in that: described pneumatic element (39) adopts parallel form to connect.
7. the inflatable of post according to claim 5 loads locating device, it is characterized in that: described pneumatic element is single action cylinder.
8. the inflatable of post according to claim 5 loads locating device, it is characterized in that: described pneumatic element is double-acting cylinder.
9. the inflatable of post according to claim 1 loads the loading method of locating device, it is characterized in that comprising the steps:
(1) determine the loading position of post, i.e. eccentric throw, described eccentric throw is the distance of load position to mast axis;
(2) pillar of intending carrying out pressurized tests is placed on the auxiliary frame of location;
(3) non-return valve on bleeder pipe (33) is closed, inflator pump (35) is inflated, air bag (31) rising drive " work " type upper plate (12) vertically guide rod moves vertically upward, when pillar flying height placed on it is greater than the height of cutter twisted branch seat, close the non-return valve (33) on gas-filled tube (32), air bag (31) is no longer inflated, and upper plate (12) stop motion of " work " type is kept certain height;
(4) a cutter twisted branch seat is put into the end face of pillar, the tip of cutter hinged-support V-type groove is accurately aimed in the vertical direction and intends loading position;
(5) the force application location place of described location auxiliary frame to pilot system is moved horizontally;
(6) another cutter twisted branch seat is put into bottom surface loading place of pillar, makes the tip of cutter hinged-support V-type groove accurately aim in the vertical direction equally and intend loading position;
(7) after realizing the aligning to pillar loading position by step (2)-(6), unscrew the non-return valve on bleeder pipe (33), gas in air bag (31) is released, air bag (31) reduces, air bag (31) reduce drive " work " type upper plate on it vertically guide rod (36) move vertically downward, when the bottom surface being supported in the pillar in horizontal slip back up pad (13) contacts with cutter hinged-support, the deadweight of pillar is born by cutter hinged-support, closes the non-return valve (34) on bleeder pipe (33);
(8) to compression column load application make compression column keep under the effect of two ends cutter hinged-support stable after, the non-return valve (34) again unscrewed on bleeder pipe (33) reduces " work " type upper plate (12), and itself and compression column are departed from;
(9) slip horizontal slip back up pad is to the circular port at chute two ends, takes down a horizontal slip back up pad, and described location auxiliary frame just can shift out bottom pillar.
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| CN201410004387.8A CN103728178B (en) | 2014-01-01 | 2014-01-01 | A kind of inflatable of post loads locating device and loads localization method |
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| CN201410004387.8A CN103728178B (en) | 2014-01-01 | 2014-01-01 | A kind of inflatable of post loads locating device and loads localization method |
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| CN103728178B true CN103728178B (en) | 2016-04-13 |
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| CN105058334B (en) * | 2015-07-17 | 2017-03-01 | 河海大学 | Can the jacking bracket of horizontal sliding and antidetonation slow test system |
| CN105458964B (en) * | 2015-12-10 | 2017-06-23 | 重庆茂江低空交通科技有限公司 | Vehicle glass bakes film device |
| CN106965134B (en) * | 2017-05-16 | 2023-08-18 | 四川钰萌光电科技有限公司 | Working platform for assembling flange chassis and base of street lamp post and assembling method |
| CN108375506A (en) * | 2018-04-24 | 2018-08-07 | 浙江大学 | The experimental rig of the vertical load of fixed eccentric compression concrete column |
| CN108918286B (en) * | 2018-09-12 | 2020-09-08 | 三峡大学 | Space-simulating multi-angle normal stress reaction frame device and using method |
| CN109332226B (en) * | 2018-09-30 | 2019-07-30 | 浙江兴泰建设有限公司 | Convenient for clean outdoor warning sign |
| CN110700938B (en) * | 2019-10-16 | 2021-06-25 | 江苏熊猫电源科技有限公司 | Diesel generating set with hidden removal complementary unit |
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