CN102367674B - Suspension type multi-dimensional input horizontal multi-directional shearing model casing device - Google Patents
Suspension type multi-dimensional input horizontal multi-directional shearing model casing device Download PDFInfo
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- CN102367674B CN102367674B CN201110350064.0A CN201110350064A CN102367674B CN 102367674 B CN102367674 B CN 102367674B CN 201110350064 A CN201110350064 A CN 201110350064A CN 102367674 B CN102367674 B CN 102367674B
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Abstract
The invention discloses a suspension type multi-dimensional input horizontal multi-directional shearing model casing device, belonging to the technical field of civil engineering. The suspension type multi-dimensional input horizontal multi-directional shearing model casing device comprises a rigid suspension bracket, a rigid bottom plate and a model casing body, wherein the top of the model casing body is hoisted by the suspension bracket and is suspended on the rigid bottom plate, the model casing body comprises more than ten layers of layer structures and a beam frame, wherein each layer structure is rigid and light, and planes of the layer structures are of any same shape, all layer structures are vertically arranged in parallel at equal intervals and are serially connected by using a film or cable, and the film or cable is suspended on the rigid beam frame; the rigid bottom plate is fixedly connected with the rigid suspension bracket and connected with a vibration platform surface together; the beam frame is arranged on the suspension bracket through universal trundles or universal joints in a spanning manner; and the suspension bracket is a rigid wall and is fixedly connected with the rigid bottom plate, and the top of the suspension bracket is provided with a vertical vibration isolation support and a height regulating mechanism. According to the invention, the interference of the model casing to model soil is reduced, the vibration simulation in the vertical direction can be tested, and the model casing is tested in a three-dimensional vibrating manner.
Description
Technical field
The invention belongs to technical field of civil engineering, relate to a kind of suspended layered multi-way shear model box device for underground structure vibration bench test.
Background technology
In the situation that actual structure-foundation dynamic interaction, ground does not have border, but in shaketalle test, can only fill model clay with the model casing of finite size.Like this, due to soil and tank interface on wave reflection and the difference of soil-model casing system and actual ground vibration shape to result of the test, bring certain error, i.e. " model casing effect ".In order to eliminate model casing effect, design of test box is become to unidirectional or two-way stratiform shear model box, make model casing can carry out stratiform shear strain under geological process, two-way stratiform shear model box, when the earthquake motion of input other direction, must be reinstalled ball in chute.These two kinds of model casings all can not be inputted dimensional simultaneously, are more difficult to meet the demand of vibration array intricately vibrations input.Although flexible die molding box can meet the requirement of dimensional input, can not control lateral rigidity, in test, soil body arching is obvious.Patent of invention < < discloses a kind of Flexible Model about Ecology experimental box of multilayer for the suspended layered multi-way shear model type device > > (ZL201020136580.4) of underground structure vibration bench test, both eliminated " model casing effect ", can implementation model case inner model soil horizontal direction shear again.But this device can not be eliminated the impact of vertical seismic stimulation on model casing-model clay system vertical motion characteristic, can not overcome the vertical effect of inertia of model casing; And the suspension holdfast rigidity in this device is not enough, still experiment is caused to some errors.And for existing model casing, in the time of the vertical seismic stimulation of input, can not effectively eliminate vertical seismic stimulation to the impact of model casing-model clay system vertical motion characteristic and the vertical effect of inertia of model casing, very large on the impact of model clay vibration characteristics.
Summary of the invention
The object of the present invention is to provide a kind of suspended multidimensional-input horizontal-multidirectional-share model box device that improves suspension holdfast rigidity intensity and utilize vibration isolating suspension elimination to affect model clay vertical direction, to overcome the deficiency of above-mentioned existing experimental box.
To achieve these goals, the technical solution used in the present invention is: design a kind of suspended multidimensional-input horizontal-multidirectional-share model box device, by rigid suspension bracket, stiff baseplate, model casing, formed, described model casing is comprised of ten layers of above deck structure and roof beam structure, deck structure is rigidity and lightweight, its flat shape is any and identical, each deck structure is vertically equidistantly arranged in parallel, by film or rope, be connected in series, and film or rope hang on rigidity roof beam structure, this rigidity roof beam structure is erected on described rigid suspension bracket; Described stiff baseplate is fixedly connected with described rigid suspension bracket and links together with vibration table; Three the above universal caster wheel of described roof beam structure by being evenly arranged or universal joint frame are on described suspension holdfast; Described rigid suspension bracket is rigidity enclosure wall, and the junction of its top and described universal caster wheel or universal joint arranges vertical vibration isolation bearing and height adjustment mechanism.
Described deck structure is aluminum alloy frame or the light-gauge steel section framework of plane structure.Wherein aluminum alloy frame can be Aluminum Hollow alloy closed circle.If this Aluminum Hollow alloy closed circle connects with film, can adopt the form of more than six the PVC film band being evenly arranged along Aluminum Hollow alloy closed circle; If connected with rope, can adopt more than six cable wire being evenly arranged along Aluminum Hollow alloy closed circle.
Described suspension holdfast is annular fence structure, and described height adjustment mechanism is the Height Adjustable bolt that is arranged on suspension holdfast top.
The present invention has following beneficial effect and advantage: with existing aseismic model experimental box ratio, suspension holdfast in the present invention is firm rigid wall, and adopt vertical vibration isolation bearing and universal wheel, not only eliminated to the utmost the effect of inertia of model casing in all directions, and greatly weakened the impact of vertical seismic stimulation on model casing-model clay system vertical motion characteristic, can test the Vibration Condition of vertical direction, realize the vibration-testing model casing of three-dimensional.Model casing in the present invention can make the model soil body in it substantially not be subject to the impact of model casing, and the suffered external influence of test model system frequency is improved, and makes the data that record more accurate.
Accompanying drawing explanation
Fig. 1 to Fig. 3 is the structural representation of an embodiment of suspended multidimensional-input horizontal-multidirectional-share model box device, and this embodiment can be used for multi-dimensional earthquake input, wherein:
Fig. 1 is model casing device top view in embodiment;
Fig. 2 is model casing device elevation in embodiment;
Fig. 3 is the suspension holdfast of model casing device in embodiment and the schematic diagram of experimental box connecting portion;
In figure, 1, girder steel 2, castor 3, vertical vibration isolation bearing 4, Height Adjustable bolt 5 rigidity enclosure walls 6, hollow sealing aluminum alloy frame 7, stiff baseplate 8, flexible cable or film band 9, billet
The specific embodiment
Below in conjunction with accompanying drawing, by embodiment, further illustrate the present invention.
Experimental box in the present embodiment adopts by the hollow of annular and seals the deck structure that aluminum alloy frame 6 forms.As shown in Figure 1,4.2 meters of aluminum alloy frame diameters, 2.3 meters of device height overalls, be applicable to multi-dimensional earthquake inputs simultaneously, model casing is comprised of 19 layers of Aluminum Hollow alloy closed frame 6, each layer of hollow sealing aluminum alloy frame 6 by 12 flexible cables or film band 8 to lower and on be formed by connecting, as shown in Figure 2.The peripheral rigidity enclosure wall 5 being fixedly connected with stiff baseplate that arranges of model casing, rigidity enclosure wall 5 adopts shaped steel to be welded, its top arranges billet 9(as Fig. 3), and place vertical vibration isolation bearing 3, Height Adjustable bolt 4 is set between billet 9 and vertical vibration isolation bearing 3, in the present embodiment, every four Height Adjustable bolts 4 are as one group, totally six groups, be evenly distributed under roof beam structure, six vertical vibration isolation bearings 3 are placed on above every group of Height Adjustable bolt 4 simultaneously, at each, above vertical vibration isolation bearing 3, place respectively castor 2, on castor 2, placing steel beam 1, and fixing with girder steel 1, girder steel 1 is annular, roof beam structure as suspended model case.
During analogue formation case, should make each layer of hollow sealing aluminum alloy frame 6 level, and guarantee that by Height Adjustable bolt 4 six castors 2 are in same level.
When carrying out shaketalle test, stiff baseplate 7 is fixed on vibroplatform, and earthquake motion can be along any direction input of model casing.
Claims (6)
1. suspended multidimensional-input horizontal-multidirectional-share model box device, by rigid suspension bracket, stiff baseplate, model casing, formed, described model casing is comprised of ten layers of above deck structure and roof beam structure, deck structure is rigidity and lightweight, its flat shape is any and identical, and each deck structure is vertically equidistantly arranged in parallel, and by film or rope, is connected in series, and film or rope hang on rigidity roof beam structure, this rigidity roof beam structure is erected on described rigid suspension bracket; It is characterized in that: described stiff baseplate is fixedly connected with described rigid suspension bracket and links together with vibration table; Three the above universal caster wheel of described roof beam structure by being evenly arranged or universal joint frame are on described rigid suspension bracket; Described rigid suspension bracket is rigidity enclosure wall, and the junction of its top and described universal caster wheel or universal joint arranges vertical vibration isolation bearing and height adjustment mechanism.
2. suspended multidimensional-input horizontal-multidirectional-share model box device as claimed in claim 1, is characterized in that: the aluminum alloy frame that described deck structure is plane structure or light-gauge steel section framework.
3. suspended multidimensional-input horizontal-multidirectional-share model box device as claimed in claim 2, is characterized in that: described aluminum alloy frame is Aluminum Hollow alloy closed circle.
4. suspended multidimensional-input horizontal-multidirectional-share model box device as claimed in claim 3, is characterized in that: more than six the PVC film band of described film for being evenly arranged along Aluminum Hollow alloy closed circle.
5. suspended multidimensional-input horizontal-multidirectional-share model box device as claimed in claim 3, is characterized in that: more than six cable wire of described rope for being evenly arranged along Aluminum Hollow alloy closed circle.
6. the suspended multidimensional-input horizontal-multidirectional-share model box device as described in any one in claim 1-5, it is characterized in that: described rigid suspension bracket is annular fence structure, described height adjustment mechanism is the Height Adjustable bolt that is arranged on suspension holdfast top.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110350064.0A CN102367674B (en) | 2011-11-08 | 2011-11-08 | Suspension type multi-dimensional input horizontal multi-directional shearing model casing device |
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| CN201110350064.0A CN102367674B (en) | 2011-11-08 | 2011-11-08 | Suspension type multi-dimensional input horizontal multi-directional shearing model casing device |
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| CN102367674A CN102367674A (en) | 2012-03-07 |
| CN102367674B true CN102367674B (en) | 2014-02-12 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940977B (en) * | 2014-03-27 | 2015-08-12 | 北京工业大学 | The adjustable stratum oscillatory shear model casing device of shaketalle test |
| CN104865033A (en) * | 2015-05-15 | 2015-08-26 | 北京工业大学 | Three-directional shearing model box device |
| CN105738196A (en) * | 2016-04-08 | 2016-07-06 | 中铁西北科学研究院有限公司 | Vertically-loaded multilayer shear model box |
| CN105971029B (en) * | 2016-06-06 | 2018-01-12 | 北京工业大学 | A kind of multidirectional laminar shear model casing for simulating saturation soil solidifying |
| CN106940235B (en) * | 2017-03-07 | 2018-11-20 | 北京工业大学 | The shake table model clay case experimental rig of Ke Kuaisugenghuan model cabinet |
| CN113049395A (en) * | 2021-03-23 | 2021-06-29 | 哈尔滨工业大学 | Simulation device for composite stress mechanism of pile foundation of liquefied field and test method thereof |
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| JP2000130506A (en) * | 1998-10-30 | 2000-05-12 | Sumitomo Rubber Ind Ltd | Three-dimensional base isolation device |
| CN201173884Y (en) * | 2008-01-17 | 2008-12-31 | 同济大学 | Large-sized laminar shearing mold case device for underground structure jigging platform test |
| CN201502112U (en) * | 2009-03-24 | 2010-06-09 | 杨海旭 | Composite seismic isolation bearing with spiral-coiled spring friction pendulum |
| CN101824829A (en) * | 2010-03-22 | 2010-09-08 | 北京工业大学 | Suspended layered multi-way shear model box device for underground structure vibration bench test |
| CN201974280U (en) * | 2011-03-07 | 2011-09-14 | 北京工业大学 | Laminated multidirectional shearing type mouldcase device used for vibrostand test |
| CN202324015U (en) * | 2011-11-08 | 2012-07-11 | 北京工业大学 | Suspended multidimensional-input horizontal-multidirectional-share model box device |
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2011
- 2011-11-08 CN CN201110350064.0A patent/CN102367674B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000130506A (en) * | 1998-10-30 | 2000-05-12 | Sumitomo Rubber Ind Ltd | Three-dimensional base isolation device |
| CN201173884Y (en) * | 2008-01-17 | 2008-12-31 | 同济大学 | Large-sized laminar shearing mold case device for underground structure jigging platform test |
| CN201502112U (en) * | 2009-03-24 | 2010-06-09 | 杨海旭 | Composite seismic isolation bearing with spiral-coiled spring friction pendulum |
| CN101824829A (en) * | 2010-03-22 | 2010-09-08 | 北京工业大学 | Suspended layered multi-way shear model box device for underground structure vibration bench test |
| CN201974280U (en) * | 2011-03-07 | 2011-09-14 | 北京工业大学 | Laminated multidirectional shearing type mouldcase device used for vibrostand test |
| CN202324015U (en) * | 2011-11-08 | 2012-07-11 | 北京工业大学 | Suspended multidimensional-input horizontal-multidirectional-share model box device |
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