CN110376071B - Shock insulation building structure dynamic characteristic test device convenient to installation and uninstallation - Google Patents
Shock insulation building structure dynamic characteristic test device convenient to installation and uninstallation Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 56
- 230000035939 shock Effects 0.000 title claims abstract description 54
- 238000009413 insulation Methods 0.000 title claims abstract description 53
- 238000009434 installation Methods 0.000 title claims description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000002955 isolation Methods 0.000 claims abstract description 17
- 239000010687 lubricating oil Substances 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 3
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- 238000006073 displacement reaction Methods 0.000 abstract description 24
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- 238000010998 test method Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
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- 238000005422 blasting Methods 0.000 description 2
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- 230000005284 excitation Effects 0.000 description 2
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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Abstract
The invention discloses a vibration isolation building structure dynamic characteristic test device convenient to install and uninstall, which comprises a counter-force wall, a hydraulic jack, a quick disassembly assembly, an auxiliary disassembly assembly, a hydraulic jack supporting mechanism and a vibration isolation support assembly, wherein the quick disassembly assembly comprises a first unloading block and a second unloading block, the connecting ends of which are mutually attached inclined planes; the hydraulic jack supporting mechanism comprises a first supporting plate, a second supporting plate, a horizontal screw and a lifting leveling assembly. The test device provided by the invention can rapidly finish the unloading work of the shock insulation building in the test process, so that the shock insulation building can better generate and finish free vibration in the initial displacement test process, and the accuracy and operability of the test result are effectively improved; the hydraulic jack supporting mechanism of the device can be used for rapidly installing hydraulic jacks of different types, and the hydraulic jacks are utilized to apply a certain degree of initial displacement to the shock insulation building, so that manpower and financial resources are saved.
Description
Technical Field
The invention relates to a test device, in particular to a vibration isolation building structure dynamic characteristic test device convenient to install and uninstall, and belongs to the field of building mechanics test devices.
Background
In China, especially in high-intensity earthquake areas, the construction projects adopting the earthquake isolation technology occupy increasingly large proportion of new projects. However, whether the actual shock insulation performance of the shock insulation building meets the relevant requirements and the established targets of the specifications and the design is not known. It is therefore necessary to verify the seismic isolation performance of the structure by in situ physical testing of the seismic isolation structure.
The dynamic characteristics of the structure including the self-vibration frequency, vibration mode, damping ratio, etc. are decisive factors for the structure response under the action of earthquake. The existing structure dynamic characteristic testing method mainly comprises an environmental excitation method, an initial displacement method, a steady-state sinusoidal excitation method and the like, and different testing methods can be selected according to the required purposes. The initial displacement test method is a test method for applying a certain degree of initial displacement to a test structure, and then suddenly releasing the test structure to enable the shock insulation structure to generate free vibration so as to further determine the structural dynamic performance of the shock insulation structure. The method has the characteristics of strong applicability, controllability, flexibility and the like. Based on the existing research, the initial displacement test method is a test method for directly and effectively researching the actual shock insulation performance of the shock insulation building.
Currently, the key technology of the initial displacement test method is initial displacement application and unloading, wherein the unloading work determines the authenticity and accuracy of the test to a certain extent. However, the unloading mode in the initial displacement test at the present stage has certain limitation, such as when a hydraulic jack is directly adopted for unloading, the jack head returns slowly, the unloading time is far longer than the return time of the shock insulation support, and the free vibration of the shock insulation building is limited or restrained to a certain extent; when the blasting method is adopted for unloading, such as the Chinese patent with the application number of 201710410188. X, the blasting vibration which interferes with the test result is generated, and the accuracy of the test result is affected.
And the primary displacement applying device mainly adopts a hydraulic jack, and the hydraulic jack head pushes the shock insulation building to generate the set horizontal displacement required by the test. However, for the shock insulation buildings with different volumes, the initial displacement applied is different, namely, hydraulic jacks with different lifting weights and different stroke heights are selected according to test requirements. Meanwhile, in the initial displacement testing method of the shock insulation building, the hydraulic jacks are horizontally arranged.
However, the hydraulic jack support device used in the existing test is generally a simple welded steel frame or masonry platform which is temporarily fixed, and the size and specification of the hydraulic jack support device can only be suitable for a jack of a specific model. When initial displacements with different sizes are applied to different shock-insulating buildings, the support devices with different models are often required to be manufactured again, so that the existing support devices are difficult to recycle and have poor applicability; and meanwhile, unnecessary waste of manpower and material resources is caused.
Disclosure of Invention
In order to solve the problems, the invention aims to provide the dynamic characteristic test device for the shock insulation building structure, which is convenient to install and uninstall, and can rapidly finish the uninstallation work of the shock insulation building in the experimental process, so that the shock insulation building can better generate and complete free vibration in the initial displacement test process, and the accuracy and operability of the test result are effectively improved; meanwhile, the hydraulic jack supporting mechanism of the device can be used for rapidly installing hydraulic jacks of different types, and the jacks are used for applying a certain degree of initial displacement to the shock insulation building, so that manpower and material resources are saved.
A vibration isolation building structure dynamic characteristic test device convenient to install and uninstall comprises a counter-force wall, a hydraulic jack, a quick disassembly component, an auxiliary disassembly component, a hydraulic jack supporting mechanism and a vibration isolation support component;
The hydraulic jack is horizontally arranged on the hydraulic jack supporting mechanism, the base of the hydraulic jack is propped against the counterforce wall, the top is propped against the shock insulation support assembly through the quick dismounting assembly, the quick dismounting assembly comprises a first unloading block and a second unloading block, the connecting ends of the first unloading block and the second unloading block are mutually attached to inclined planes, and the auxiliary dismounting assembly is arranged between the base of the hydraulic jack and the top;
The hydraulic jack supporting mechanism comprises a first supporting plate, a second supporting plate, a horizontal screw rod and a lifting leveling assembly; the first supporting plate and the second supporting plate are horizontally arranged; the horizontal screws are provided with a plurality of horizontal screws, one ends of the horizontal screws are fixed on the side wall of the first supporting plate, and the other ends of the horizontal screws penetrate through the second supporting plate in a sliding manner; the upper ends of the first supporting plate and the second supporting plate are respectively provided with an arc-shaped groove, and the lower ends of the first supporting plate and the second supporting plate are respectively provided with a plurality of lifting leveling assemblies.
According to the invention, the hydraulic jack is used for applying a certain degree of initial displacement to the shock insulation building, and after the application of the set initial displacement is completed, the hydraulic jack is subjected to instantaneous hydraulic pressure removal, so that the shock insulation building returns and vibrates, and further the test of the structural dynamic characteristics of the shock insulation building is realized. The first unloading block and the second unloading block are arranged between the hydraulic jack and the shock insulation support component, the connecting surfaces of the first unloading block and the second unloading block are inclined planes which are mutually attached, separation of the first unloading block and the second unloading block can be facilitated, the auxiliary disassembly component accelerates the return of the jack of the hydraulic jack while the hydraulic jack is relieved, the first unloading block and the second unloading block are relatively separated, the second unloading block falls down under the action of gravity, and finally the hydraulic jack is separated from the shock insulation building, so that unloading work is completed.
According to the invention, the side walls at the two ends of the hydraulic jack are placed on the arc-shaped grooves of the first supporting plate and the second supporting plate, and the distance between the second supporting plate and the first supporting plate is adjusted through the horizontal screw, so that the supporting device can be used for placing jacks with different lengths, namely, placing jacks with different types, lifting and leveling the jacks by utilizing the lifting and leveling assembly, and carrying out test experiments under different field conditions.
Further, the quick disassembly assembly further comprises a tilting rod and a clamping rod, wherein one end of the tilting rod is provided with a tilting rod clamping groove, the other end of the tilting rod is provided with a clamping hook hole, one end of the clamping rod is hinged to the outer side wall of the hydraulic jack, and the other end of the clamping rod is provided with a clamping hook;
the first unloading block and the second unloading block are respectively provided with a door-shaped hook frame I and a door-shaped hook frame II; the tilted rod passes through the door-shaped hook frame I, a tilted rod clamping groove at one end is clamped with the door-shaped hook frame II, and a clamping hook hole at the other end is clamped with the clamping hook;
The inclined plane of the first unloading block is provided with a clamping groove, the clamping groove is arranged along the inclined direction of the inclined plane, and the inclined plane of the second unloading block is provided with a clamping strip sliding on the clamping groove.
According to the invention, a lever principle is adopted, the tilting rod and the clamping rod are arranged, the second unloading block is prevented from falling downwards in the loading process due to the leverage of the tilting rod and the clamping rod during loading, and the second unloading block is separated from the first unloading block through leverage during unloading, so that the second unloading block is facilitated to fall downwards. Specifically, when loading, the tilting rod passes through the door-shaped hook frame I, a tilting rod clamping groove at one end of the tilting rod is clamped on the door-shaped hook frame II, and a clamping hook hole at the other end of the tilting rod is connected with a clamping hook at the top end of the clamping rod, so that the vertical limit of the second unloading block is realized, and the second unloading block is prevented from falling off; when the hydraulic jack is relieved, an operator breaks away from the clamping hook and the clamping hook hole through external force, the clamping rod does not have a fixing effect on the tilting rod any more, the tilting rod is lifted upwards, the second unloading block is accelerated to drop downwards, and the unloading work of the test device is faster and more convenient. Through setting up draw-in groove and card strip, make the second uninstallation piece only can be in vertical plane internal motion, restrict the plane and slide outward, guarantee the security of loading and uninstallation work.
Further, the auxiliary disassembly component comprises a first connecting plate arranged on the base of the hydraulic jack, a second connecting plate arranged on the top of the hydraulic jack and a spring for connecting the first connecting plate and the second connecting plate;
the hydraulic jack is characterized in that a first limiting groove for clamping the base of the hydraulic jack is formed in the first connecting plate, a second limiting groove and a third limiting groove for clamping the hydraulic jack head and the first unloading block are respectively formed in two sides of the second connecting plate, and connecting hooks for connecting the springs are respectively arranged on the first connecting plate and the second connecting plate.
According to the invention, the spring is arranged between the first connecting plate and the second connecting plate in the auxiliary unloading assembly, so that the top of the hydraulic jack can return more quickly when the hydraulic jack is unloaded, and the second unloading block can drop quickly; the first, second and third limit grooves are arranged, so that test safety in the loading and unloading process is facilitated; meanwhile, the connecting hooks are arranged, so that the spring can be conveniently installed.
Further, the shock insulation support assembly comprises a shock insulation rubber support, and support upper buttresses and support lower buttresses arranged at the upper end and the lower end of the shock insulation rubber support, so that a shock insulation building to be tested can be supported conveniently.
Further, an adjusting connecting block is further arranged between the second unloading block and the support upper buttress, and lubricating oil is smeared on the attaching inclined surfaces of the first unloading block and the second unloading block. The adjusting connecting blocks are arranged, so that the applicability of the test device under different test site sizes is facilitated, and the necessary vibration space of the vibration isolation building is ensured; through being smeared with lubricating oil to the laminating inclined plane of first uninstallation piece and second uninstallation piece of being convenient for slides better, and then makes the second uninstallation piece can drop fast.
Further, the lifting leveling assembly comprises a lifting screw rod, a lifting adjusting nut and a supporting cylinder; the lifting screw rod top fixed connection first backup pad or second backup pad, lifting screw rod wears to establish in the lifting adjustment nut and with lifting adjustment nut screw thread fit, lifting adjustment nut installs support section of thick bamboo upper end.
When testing the dynamic characteristics of the shock insulation building structure, the jack is required to stably apply the given horizontal initial displacement, however, the ground of the test site is often uneven, so that the jack supporting device is required to be subjected to leveling treatment so as to enable the jack to stably apply the horizontal thrust. In the invention, the lifting screw and the lifting adjusting nut form a ball screw, and the rotation motion of the lifting adjusting nut is converted into the linear motion of the lifting screw, so that the lifting and the leveling of the supporting height in the supporting device are realized.
Further, the lifting adjusting nut comprises a mechanical adjusting nut at the top end, a handheld adjusting knob in the middle and a positioning cylinder at the bottom end; the outer side wall of the positioning cylinder is provided with a positioning groove along the circumferential direction of the positioning cylinder; threaded holes are formed in the side walls of the upper ends of the supporting cylinders, and the nut limiting bolts penetrate through the threaded holes and are embedded into the positioning grooves.
Mechanical adjusting nut, handheld adjusting knob and positioning tube structure as an organic whole, the operator is through the high of middle handheld adjusting knob adjustment lifting screw, or through spanner rotation mechanical adjusting nut adjustment lifting screw's high, and nut stop bolt is spacing to lifting adjusting nut, makes lifting adjusting nut circumference rotatory, and radial fixed can only rotate promptly, can not vertical movement to be convenient for lift and leveling to the backup pad.
Further, the first support plate or the second support plate upper end face at the left end and the right end of the arc-shaped groove is respectively provided with a bolt mounting plate, and jack fixing bolts are mounted on the bolt mounting plates towards the arc-shaped groove direction and are arranged to facilitate fixing hydraulic jacks of cylinders with different diameters.
Further, a pair of horizontal adjusting nuts for fixing the second supporting plate are arranged on the horizontal screw rod, and the second supporting plate on the horizontal screw rod is fixed so as to support the jack thereon.
Further, horizontal bubbles are arranged on the upper end surfaces of the first support plate and the second support plate and used for measuring the inclination of the first support plate and the second support plate relative to the horizontal position, and leveling treatment of the first support plate and the second support plate is achieved through the lifting leveling assembly.
The invention has the beneficial effects that:
According to the test device provided by the invention, the first unloading block and the second unloading block between the hydraulic jack and the shock insulation support component are mutually attached inclined planes, so that the connection surfaces of the first unloading block and the second unloading block can be conveniently separated; when the hydraulic jack is depressurized, the spring generates pulling force to accelerate the return of the top of the hydraulic jack, meanwhile, the lever action of the tilting rod and the portal hook frame is utilized to enable the first unloading block and the second unloading block to be separated relatively, the second unloading block falls downwards under the action of gravity, finally, the hydraulic jack is separated from the shock insulation building, unloading work is completed, free vibration of the shock insulation building can be better generated and completed in the initial displacement test process, and the accuracy and operability of the test are effectively improved.
The hydraulic jack supporting mechanism provided by the invention is simple in structure and convenient to install and use, the distance between the second supporting plate and the first supporting plate is adjusted through the horizontal screw rod, and meanwhile, the first supporting plate and the second supporting plate are lifted and leveled by the lifting leveling assembly, so that the supporting device can be used for placing hydraulic jacks of different types, and different shock insulation buildings can be tested by using the jacks of different types.
Drawings
FIG. 1 is a schematic illustration of the present invention;
FIG. 2 is a front view of an exploded view of a first unloader block and a second unloader block of the present invention;
FIG. 3 is a side view of an exploded view of a first unloading block and a second unloading block of the present invention;
FIG. 4 is a schematic view of a first connection plate according to the present invention;
FIG. 5 is a schematic view of a second connecting plate according to the present invention;
FIG. 6 is an exploded view of a tilt lever and a clip lever of the present invention;
FIG. 7 is a schematic view of the jack support mechanism of the present invention;
FIG. 8 is a side view of the jack support mechanism of the present invention;
FIG. 9 is an exploded view of the lift leveling assembly of the present invention;
In the figure: 1. a reaction wall; 2.a hydraulic jack; 3. quick disconnect assembly; 31. a first unload block; 311. a door-shaped hook frame I; 312. a clamping groove; 32. a second unload block; 321. a door-shaped hook frame II; 322. clamping strips; 33. a tilting rod; 331. a stick-up lever clamping groove; 332. a hook hole; 34. a clamping rod; 341. a clamping hook; 4. an auxiliary disassembly component; 41. a first connection plate; 42. a second connecting plate; 43. a spring; 44. a first limit groove; 45. the second limit groove; 46. a third limit groove; 47. a connecting hook; 5. a hydraulic jack support mechanism; 51. a first support plate; 52. a second support plate; 53. a horizontal screw; 54. lifting leveling components; 541. lifting screw rods; 542. lifting and lowering the adjusting nut; 5421. a mechanical adjustment nut; 5422. holding an adjusting knob; 5423. a positioning cylinder; 5424. a positioning groove; 543. a support cylinder; 5431. a threaded hole; 544. a nut limit bolt; 55. an arc-shaped groove; 56. a bolt mounting plate; 57. jack fixing bolts; 58. a horizontal adjustment nut; 59. horizontal bubbles; 6. a shock isolation support assembly; 61. a support lower buttress; 62. a shock-insulating rubber support; 63. a buttress is arranged on the support; 7. and adjusting the connecting block.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent. In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
The device for testing the dynamic characteristics of the shock insulation building structure is convenient to install and uninstall, and as shown in figures 1, 7 and 8, comprises a counter-force wall 1, a hydraulic jack 2, a quick-dismantling component 3, an auxiliary dismantling component 4, a hydraulic jack supporting mechanism 5 and a shock insulation supporting seat component 6;
The hydraulic jack 2 is horizontally arranged on the hydraulic jack supporting mechanism 5, a counter-force wall 1 is arranged on the base of the hydraulic jack 2 in a jacking mode, a shock insulation support component 6 is arranged on the jacking head through a quick dismounting component 3 in a jacking mode, the quick dismounting component 3 comprises a first unloading block 31 and a second unloading block 32, the connecting ends of the first unloading block 31 and the second unloading block are mutually attached to inclined planes, and an auxiliary dismounting component 4 is arranged between the base and the jacking head of the hydraulic jack 2;
The hydraulic jack supporting mechanism 5 comprises a first supporting plate 51, a second supporting plate 52, a horizontal screw 53 and a lifting leveling assembly 54; the first support plate 51 and the second support plate 52 are horizontally disposed; the horizontal screw rods 53 are provided with a plurality of horizontal screw rods, one ends of the horizontal screw rods are fixed on the side wall of the first supporting plate 51, and the other ends of the horizontal screw rods penetrate through the second supporting plate 52 in a sliding manner; the upper ends of the first supporting plate 51 and the second supporting plate 52 are respectively provided with an arc-shaped groove 55, and the lower ends of the first supporting plate and the second supporting plate are respectively provided with a plurality of lifting leveling assemblies 54.
When in specific use, the hydraulic jack support mechanism 5 is used for installing the hydraulic jack 2: first, the second support plate 52 is slid along the horizontal screw 53 to adjust the distance between the second support plate 52 and the first support plate 51; then, the first support plate 51 and the second support plate 52 are lifted to a proper height and leveled by adjusting the lifting leveling assembly 54 at the lower ends of the first support plate 51 and the second support plate 52; finally, the side walls at both ends of the hydraulic jack 2 are placed on the arc grooves 55 of the first support plate 51 and the second support plate 52 to support the hydraulic jack 2.
The vibration isolation support component 6 supports the vibration isolation building to be tested, and when the vibration isolation building to be tested is loaded, the hydraulic jack 2 applies load through hydraulic pressure, and initial displacement established by test is applied to the vibration isolation building supported on the vibration isolation support component 6; during unloading, the hydraulic jack 2 removes hydraulic pressure, the top of the hydraulic jack 2 returns rapidly under the action of the auxiliary dismounting assembly 4, the first unloading block 31 and the second unloading block 32 are separated, the second unloading block 32 drops downwards under the action of gravity, and finally the hydraulic jack 2 is separated from the shock insulation building, so that unloading work is completed.
Example 2
The embodiment is further improved on the basis of embodiment 1, as shown in fig. 1,2, 3 and 6, the quick-dismantling component 3 further comprises a tilting rod 33 and a clamping rod 34, one end of the tilting rod 33 is provided with a tilting rod clamping groove 331, the other end is provided with a clamping hook hole 332, one end of the clamping rod 34 is hinged on the outer side wall of the hydraulic jack 2, and the other end is provided with a clamping hook 341;
The first unloading block 31 and the second unloading block 32 are respectively provided with a door-shaped hook frame I311 and a door-shaped hook frame II 321; the tilted rod 33 passes through the door-shaped hook frame I311, the tilted rod clamping groove 331 at one end is clamped with the door-shaped hook frame II 321, and the clamping hook hole 332 at the other end is clamped with the clamping hook 341;
the inclined surface of the first unloading block 31 is provided with a clamping groove 312, the clamping groove 312 is arranged along the inclined direction of the inclined surface, and the inclined surface of the second unloading block 32 is provided with a clamping strip 322 sliding on the clamping groove 312.
When the device is specifically used, the second unloading block 32 is prevented from falling off by utilizing the lever principle in the loading process by additionally arranging the tilting rod 33 and the clamping rod 34; during unloading, the drop of the second unloading block 32 is accelerated by the lever principle. Specifically, during loading, the tilted rod 33 passes through the door-shaped hook frame i 311, the tilted rod clamping groove 331 at one end is clamped on the door-shaped hook frame ii 321, the clamping hook hole 332 at the other end is connected with the clamping hook 341 at the top end of the clamping rod 34, so as to limit the second unloading block 32 and prevent the second unloading block from falling off during loading; in the unloading process, an operator breaks away from the hook hole 332 through an external force, the fixing effect of the tilted rod 33 on the second unloading block 32 disappears, and simultaneously, the tilted rod 33 is lifted upwards by taking the portal hook frame as a fulcrum, so that the second unloading block 32 falls off, the hydraulic jack breaks away from the shock insulation building, and the unloading work is conveniently and rapidly completed.
Example 3
The present embodiment is further modified from embodiment 1 or 2 in that, as shown in fig. 1, 4 and 5, the auxiliary disassembly assembly 4 includes a first connection plate 41 installed at the base of the hydraulic jack 2, a second connection plate 42 installed at the top of the hydraulic jack 2, and a spring 43 connecting the first connection plate 41 and the second connection plate 42;
The first connecting plate 41 is provided with a first limit groove 44 for clamping the base of the hydraulic jack, two sides of the second connecting plate 42 are respectively provided with a second limit groove 45 and a third limit groove 46 for clamping the hydraulic jack head and the first unloading block 31, and the first connecting plate 41 and the second connecting plate 42 are respectively provided with a connecting hook 47 for connecting the spring 43.
When the device is specifically used, the first limiting groove 44, the second limiting groove 45 and the third limiting groove 46 are formed in the first connecting plate 41 and the second connecting plate 42, so that test safety in the loading and unloading process is facilitated; at the same time, by arranging the connecting hook 47, the spring 43 is convenient to install; at the same time of releasing the pressure of the hydraulic jack 2, the spring 43 contracts to generate a pulling force, so that the jack of the hydraulic jack 2 can return more quickly during unloading, and the second unloading block 32 can drop quickly.
Example 4
This embodiment is a further improvement on any one of embodiments 1 to 3, and as shown in fig. 1, the shock insulation support assembly 6 includes a shock insulation rubber support 62, and support upper buttresses 63 and support lower buttresses 61 installed at upper and lower ends of the shock insulation rubber support 62; an adjusting connecting block 7 is further arranged between the second unloading block 32 and the support upper buttress 63, and lubricating oil is smeared on the attaching inclined surfaces of the first unloading block 31 and the second unloading block 32.
When the test device is particularly used, a shock insulation building to be tested is placed on the support upper buttress 63; the proper adjusting connecting block 7 is selected to be propped between the second unloading block 32 and the support upper buttress 63, so that the applicability of the test device under different test site sizes is facilitated, and the necessary vibration space of the shock insulation building is ensured; lubricating oil is smeared on the inclined planes, so that the first unloading block 31 and the second unloading block 32 can slide better on the attached inclined planes, and the second unloading block 32 can fall off quickly.
Example 5
This embodiment is further modified from any one of embodiments 1 to 4, and as shown in fig. 7 to 9, the elevation leveling assembly 54 includes an elevation screw 541, an elevation adjustment nut 542, and a support cylinder 543; the top end of the lifting screw 541 is fixedly connected with the first support plate 51 or the second support plate 52, the lifting screw 541 is arranged in the lifting adjusting nut 542 in a penetrating manner and is in threaded fit with the lifting adjusting nut 542, and the lifting adjusting nut 542 is arranged at the upper end of the support cylinder 543.
The elevation adjustment nut 542 includes a top mechanical adjustment nut 5421, a middle hand-held adjustment knob 5422, and a bottom positioning cylinder 5423; the outer side wall of the positioning cylinder 5423 is provided with a positioning groove 5424 along the circumferential direction of the positioning cylinder 5423; threaded holes 5431 are formed in the side walls of the upper ends of the support tubes 541, and nut limit bolts 544 penetrate through the threaded holes 5431 and are embedded into the positioning grooves 5424.
In specific use, an operator adjusts the height of the lifting screw 541 by means of the middle hand-held adjusting knob 5422 or adjusts the height of the lifting screw 541 by means of a wrench turning the mechanical adjusting nut 5421, changes the rotational movement of the lifting adjusting nut 542 into a linear movement of the lifting screw 541, and lifts and levels the supporting device to facilitate the installation of the jack.
Example 6
This embodiment is further improved on the basis of any one of embodiments 1 to 5, as shown in fig. 7 to 9, bolt mounting plates 56 are respectively disposed on the upper end surfaces of the first support plates 51 or the second support plates 52 at the left and right ends of the arc-shaped groove 55, and jack fixing bolts 57 are disposed on the bolt mounting plates 56 toward the arc-shaped groove 55. A pair of horizontal adjustment nuts 58 for fixing the second support plate 52 are mounted on the horizontal screw 53. Horizontal bubbles 59 are mounted on the upper end surfaces of the first support plate 51 and the second support plate 52.
When the hydraulic jack is particularly used, the hydraulic jack in the arc-shaped groove 55 is fixed by rotating the jack fixing bolt 57; the second support plate 52 is fixed by a horizontal adjustment nut 58, and the distance from the second support plate to the first support plate 51 is controlled; the inclination of the first support plate 51 and the second support plate 52 with respect to the horizontal position is measured by the horizontal bubble 59.
For a better understanding of the present invention, the working principle of the present invention will be described in more complete detail with reference to the above embodiments:
When the test apparatus is used, the hydraulic jack 2 of the test apparatus should be first installed. After the hydraulic jack 2 is selected, the second support plate 52 is slid along the horizontal screw 53, the distance between the second support plate 52 and the first support plate 51 is adjusted, and the second support plate 52 is fixed by the horizontal adjusting nut 58; then, the height of the lifting screw 541 is adjusted by holding the adjusting knob 5422, or the height of the lifting screw 541 is adjusted by turning the mechanical adjusting nut 5421 by a wrench, so that the first support plate 51 and the second support plate 52 on the lifting leveling assembly 54 are adjusted to a proper height; secondly, the lifting leveling assembly 54 is finely adjusted while observing the horizontal bubbles 59, and the first supporting plate 51 and the second supporting plate 52 are leveled; then placing the two ends of the hydraulic jack 2 to be fixed in the arc-shaped grooves 55 on the first support plate 51 and the second support plate 52; finally, the jack fixing bolt 57 is rotated to fix the hydraulic jack 2 in the arc-shaped groove 55.
When loading, the hydraulic jack 2 is used for applying hydraulic ballast, so as to push the hydraulic jack head to displace, and the application work of the set initial displacement is completed; at this time, the tilting lever clamping groove 331 at one end of the tilting lever 33 is clamped on the door-shaped hook frame ii 321, and the hook hole 332 at the other end hangs the hook 341 at the top end of the clamping lever 34, so as to limit the second unloading block 32 and prevent the second unloading block from falling off in the loading process.
When the hydraulic jack 2 is depressurized, the spring 43 contracts to generate a tensile force to accelerate the return of the jack 2, meanwhile, an operator breaks away from the hook hole 332 through an external force, the fixing effect of the warping rod 33 on the second unloading block 32 disappears, the warping rod 33 is lifted upwards by taking the portal hook frame as a fulcrum, the first unloading block 31 and the second unloading block 32 are separated relatively, the second unloading block 32 falls downwards under the action of gravity, and finally, the hydraulic jack breaks away from the shock insulation building, so that the unloading work is conveniently and rapidly completed.
In the common hydraulic jack testing device, a certain time is required for returning the hydraulic jack, the unloading time is relatively long, and the downward falling time of the unloading block is about 40-60 s according to different initial displacement. According to the invention, the first unloading block 31 and the second unloading block 32 which are mutually attached with inclined planes are adopted, and the downward falling time of the second unloading block 32 is 5-10 s according to different applied initial displacement, so that the free return limit and the constraint of the hydraulic jack 2 on the shock insulation building in the unloading process are reduced, the shock insulation building can better generate and complete free vibration in the initial displacement test process, and the accuracy and the operability of a test result are effectively improved.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. Vibration isolation building structure dynamic characteristic test device convenient to installation and uninstallation, its characterized in that: the hydraulic jack comprises a counterforce wall (1), a hydraulic jack (2), a quick disassembly component (3), an auxiliary disassembly component (4), a hydraulic jack supporting mechanism (5) and a shock insulation support component (6);
The hydraulic jack (2) is horizontally arranged on the hydraulic jack supporting mechanism (5), the base of the hydraulic jack (2) is propped against the counterforce wall (1), the top is propped against the shock insulation support assembly (6) through the quick dismounting assembly (3), the quick dismounting assembly (3) comprises a first unloading block (31) and a second unloading block (32) with mutually attached inclined surfaces at the connecting ends, and the auxiliary dismounting assembly (4) is arranged between the base of the hydraulic jack (2) and the top;
The hydraulic jack supporting mechanism (5) comprises a first supporting plate (51), a second supporting plate (52), a horizontal screw (53) and a lifting leveling assembly (54); the first supporting plate (51) and the second supporting plate (52) are horizontally arranged; the horizontal screws (53) are provided with a plurality of horizontal screws, one ends of the horizontal screws are fixed on the side wall of the first supporting plate (51), and the other ends of the horizontal screws penetrate through the second supporting plate (52) in a sliding manner; the upper ends of the first supporting plate (51) and the second supporting plate (52) are respectively provided with an arc-shaped groove (55), and the lower ends of the first supporting plate and the second supporting plate are respectively provided with a plurality of lifting leveling assemblies (54);
The quick disassembly assembly (3) further comprises a tilting rod (33) and a clamping rod (34), wherein one end of the tilting rod (33) is provided with a tilting rod clamping groove (331), the other end of the tilting rod is provided with a clamping hook hole (332), one end of the clamping rod (34) is hinged to the outer side wall of the hydraulic jack (2), and the other end of the clamping rod is provided with a clamping hook (341);
The first unloading block (31) and the second unloading block (32) are respectively provided with a door-shaped hook frame I (311) and a door-shaped hook frame II (321); the tilted rod (33) passes through the door-shaped hook frame I (311), a tilted rod clamping groove (331) at one end is clamped with the door-shaped hook frame II (321), and a clamping hook hole (332) at the other end is clamped with the clamping hook (341);
A clamping groove (312) is formed in the inclined surface of the first unloading block (31), the clamping groove (312) is arranged along the inclined direction of the inclined surface, and a clamping strip (322) sliding on the clamping groove (312) is formed in the inclined surface of the second unloading block (32);
the auxiliary disassembly assembly (4) comprises a first connecting plate (41) arranged on the base of the hydraulic jack (2), a second connecting plate (42) arranged on the top of the hydraulic jack (2) and a spring (43) connected with the first connecting plate (41) and the second connecting plate (42);
The hydraulic jack is characterized in that a first limiting groove (44) for clamping the base of the hydraulic jack is formed in the first connecting plate (41), a second limiting groove (45) and a third limiting groove (46) for clamping the top of the hydraulic jack and the first unloading block (31) are formed in two sides of the second connecting plate (42), and connecting hooks (47) for connecting the springs (43) are formed in the first connecting plate (41) and the second connecting plate (42).
2. The device for testing the dynamic characteristics of the shock-insulating building structure, which is convenient to install and uninstall, according to claim 1, is characterized in that: the shock insulation support assembly (6) comprises a shock insulation rubber support (62), and support upper support piers (63) and support lower support piers (61) which are arranged at the upper end and the lower end of the shock insulation rubber support (62).
3. The vibration isolation building structure dynamic characteristic test device convenient to install and uninstall according to claim 2, wherein: an adjusting connecting block (7) is further arranged between the second unloading block (32) and the support upper buttress (63), and lubricating oil is smeared on the attaching inclined surfaces of the first unloading block (31) and the second unloading block (32).
4. The device for testing the dynamic characteristics of the shock-insulating building structure, which is convenient to install and uninstall, according to claim 1, is characterized in that: the lifting leveling assembly (54) comprises a lifting screw (541), a lifting adjusting nut (542) and a supporting cylinder (543);
The top end of the lifting screw (541) is fixedly connected with the first supporting plate (51) or the second supporting plate (52), the lifting screw (541) penetrates through the lifting adjusting nut (542) and is in threaded fit with the lifting adjusting nut (542), and the lifting adjusting nut (542) is installed at the upper end of the supporting cylinder (543).
5. The device for testing the dynamic characteristics of the shock-insulating building structure, which is convenient to install and uninstall, according to claim 4, is characterized in that: the lifting adjusting nut (542) comprises a mechanical adjusting nut (5421) at the top end, a handheld adjusting knob (5422) in the middle and a positioning cylinder (5423) at the bottom end;
the outer side wall of the positioning cylinder (5423) is provided with a positioning groove (5424) along the circumferential direction of the positioning cylinder (5423); threaded holes (5431) are formed in the side walls of the upper ends of the supporting cylinders (543), and nut limiting bolts (544) penetrate through the threaded holes (5431) and are embedded into the positioning grooves (5424).
6. The device for testing the dynamic characteristics of the shock-insulating building structure, which is convenient to install and uninstall, according to claim 1, is characterized in that: the lifting jack is characterized in that bolt mounting plates (56) are arranged on the upper end faces of the first support plates (51) or the second support plates (52) at the left end and the right end of the arc-shaped groove (55), and jack fixing bolts (57) are mounted on the bolt mounting plates (56) towards the direction of the arc-shaped groove (55).
7. The device for testing the dynamic characteristics of the shock-insulating building structure, which is convenient to install and uninstall, according to claim 1, is characterized in that: a pair of horizontal adjusting nuts (58) for fixing the second supporting plate (52) are arranged on the horizontal screw (53).
8. The device for testing the dynamic characteristics of the shock-insulating building structure, which is convenient to install and uninstall, according to claim 1, is characterized in that: horizontal bubbles (59) are arranged on the upper end surfaces of the first supporting plate (51) and the second supporting plate (52).
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| CN111487028B (en) * | 2020-04-24 | 2021-11-30 | 安徽理工大学 | Loading platform device for civil engineering structure explosion damage experiment |
| CN113432817B (en) * | 2021-06-02 | 2022-06-24 | 中国航空规划设计研究总院有限公司 | Equipment and method for mechanically detecting mechanical parameters of cultural relic shockproof device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016205012A (en) * | 2015-04-23 | 2016-12-08 | 清水建設株式会社 | Seismic isolation jack device and seismic isolation device replacement method |
| CN107063673A (en) * | 2017-06-03 | 2017-08-18 | 福州大学 | Isolation structure dynamic characteristics horizontal translocation test device and its method of testing |
| CN206848090U (en) * | 2017-03-28 | 2018-01-05 | 福建璟榕工程建设发展有限公司 | A kind of building prefabrication reinforced concrete shear wall load testing machine |
| CN207376446U (en) * | 2017-10-23 | 2018-05-18 | 雨发建设集团有限公司 | A kind of shock mount device |
| CN207832593U (en) * | 2018-02-13 | 2018-09-07 | 北京建筑大学 | A kind of compression shear test device of shock isolating pedestal |
| CN110080589A (en) * | 2019-04-04 | 2019-08-02 | 河海大学 | A kind of vertical earthquake isolating equipment and its shock insulation, installation method |
| CN210487490U (en) * | 2019-08-15 | 2020-05-08 | 四川省建筑科学研究院有限公司 | Shock insulation building structure dynamic characteristic test device convenient to install and uninstall |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019055818A1 (en) * | 2017-09-14 | 2019-03-21 | South Dakota Board Of Regents | Apparatus, systems and methods for repairable precast moment-resisting buildings |
-
2019
- 2019-08-15 CN CN201910752614.8A patent/CN110376071B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016205012A (en) * | 2015-04-23 | 2016-12-08 | 清水建設株式会社 | Seismic isolation jack device and seismic isolation device replacement method |
| CN206848090U (en) * | 2017-03-28 | 2018-01-05 | 福建璟榕工程建设发展有限公司 | A kind of building prefabrication reinforced concrete shear wall load testing machine |
| CN107063673A (en) * | 2017-06-03 | 2017-08-18 | 福州大学 | Isolation structure dynamic characteristics horizontal translocation test device and its method of testing |
| CN207376446U (en) * | 2017-10-23 | 2018-05-18 | 雨发建设集团有限公司 | A kind of shock mount device |
| CN207832593U (en) * | 2018-02-13 | 2018-09-07 | 北京建筑大学 | A kind of compression shear test device of shock isolating pedestal |
| CN110080589A (en) * | 2019-04-04 | 2019-08-02 | 河海大学 | A kind of vertical earthquake isolating equipment and its shock insulation, installation method |
| CN210487490U (en) * | 2019-08-15 | 2020-05-08 | 四川省建筑科学研究院有限公司 | Shock insulation building structure dynamic characteristic test device convenient to install and uninstall |
Non-Patent Citations (2)
| Title |
|---|
| 橡胶隔震支座力学性能试验研究;华培忠, 韩新民, 李佩林, 赵晋明, 张志强, 陈守明;地震研究(第01期);全文 * |
| 水平初位移条件下实际隔震结构现场测试;吴应雄;陈骁;邵奕夫;廖文彬;;水利与建筑工程学报(第06期);全文 * |
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