CN201945289U - Device for producing differential settlements during thin-walled cylindrical shell structure test - Google Patents
Device for producing differential settlements during thin-walled cylindrical shell structure test Download PDFInfo
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- CN201945289U CN201945289U CN2010206720681U CN201020672068U CN201945289U CN 201945289 U CN201945289 U CN 201945289U CN 2010206720681 U CN2010206720681 U CN 2010206720681U CN 201020672068 U CN201020672068 U CN 201020672068U CN 201945289 U CN201945289 U CN 201945289U
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- cylindrical shell
- walled cylindrical
- screw rod
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Abstract
The utility model discloses a device for producing differential settlements during a thin-walled cylindrical shell structure test, which can adjust a positive and negative thread sleeve so that various harmonic settlements and local settlements can be flexibly stimulated and the practical differential settlements can be transmitted to a thin-walled cylindrical shell model, thereby obtaining the real shell deformation. The instability modes and the failure mechanisms of the thin-walled cylindrical shell under the state of differential settlements can be known directly. The device for producing the differential settlements during the thin-walled cylindrical shell structure test provides basis for economical and reasonable designs of structures, such as a vertical steel storage tank, a plane-bottom steel silo and the like and provides reference for formulating relative design rules. The device for producing the differential settlements during the thin-walled cylindrical shell structure test has simple structure and low cost, can assume that the manufactured thin-walled cylindrical shell has no initial stress and only has small initial geometric imperfections, and can be applied to the test study of the thin-walled cylindrical shell.
Description
Technical field
The utility model belongs to technical field of structural engineering, relates in particular to the non-uniform settling generation device in a kind of Thin-Wall Cylindrical Shells structural test.
Background technology
Thin-Wall Cylindrical Shells is widely used in all kinds of shell structures in the civil engineering work, as storage tank, silo, tower mast, chimney and pipeline etc.The large cylindrical shell that is built on the soft soil foundation is easy to generate various distortion, and all non-uniform settlings of its mesochite are the most unfavorable to shell stability.The flexing of Thin-Wall Cylindrical Shells is the research focus in current shell structure in the world field under the unequal stress state, but mostly at non-homogeneous loading condition, less to the research of non-homogeneous support problem.At present, the research for Thin-Wall Cylindrical Shells under the non-uniform settling mainly still concentrates on theoretical analysis and numerical simulation.But numerical method is difficult to accurately to consider the thin wall cylindrical buckling of shell is had some factors of material impact, as the rigidity of initial defective, unrelieved stress, storage medium and material strain sclerosis etc.The influence of these complicated factors can only be investigated with the theoretical method that combines by experimental study or test, still, the report of the non-uniform settling generation device that carries out the Thin-Wall Cylindrical Shells structural test is not arranged as yet at present.
The utility model content
The purpose of this utility model is at the deficiencies in the prior art, and the non-uniform settling generation device in a kind of Thin-Wall Cylindrical Shells structural test is provided.
The purpose of this utility model is achieved through the following technical solutions: the non-uniform settling generation device in a kind of Thin-Wall Cylindrical Shells structural test, it comprises: circular bottom plate, rigid platfor and several (such as 32) sedimentation transfer devices, and the sedimentation transfer device evenly is fixed between circular bottom plate and the rigid platfor along circumference; Wherein, described sedimentation transfer device comprises rectangular parallelepiped steel bar piece, last screw rod, positive left-hand thread adjustable sleeve, following screw rod, Magnetic gauge stand and dial gauge.Rectangular parallelepiped steel bar piece point is welded in the lower surface of circular bottom plate, last screw rod and following screw rod screw in the two ends of positive left-hand thread adjustable sleeve respectively, the other end of last screw rod is fixed on the rectangular parallelepiped steel bar piece by nut, the other end of following screw rod is by being bolted on the rigid platfor, Magnetic gauge stand is fixed on the rigid platfor, and Magnetic gauge stand supports dial gauge by bracing frame.
The beneficial effect that the utlity model has is: by the non-uniform settling generation device in this Thin-Wall Cylindrical Shells structural test, regulate positive and negative screw shell and can simulate various harmonic wave sedimentations and local sedimentation flexibly, actual non-uniform settling can be passed to the thin wall cylindrical shell model, thereby obtain real housing distortion, can intuitively understand unstability mode and the failure mechanism of Thin-Wall Cylindrical Shells under non-uniform settling, for the isostructural economical rationality design of Vertical Steel storage tank, flat steel silo provides foundation, and provide reference for the formulation of relevant design standard.The utility model is simple in structure, and cost is low, and can suppose that the Thin-Wall Cylindrical Shells of making does not have primary stress, has only how much very little initial imperfections, is applicable to the experimental study of Thin-Wall Cylindrical Shells.
Description of drawings
Fig. 1 is a structural principle synoptic diagram of the present utility model;
Fig. 2 is the fragmentary detail view of Fig. 1;
Fig. 3 is the planimetric map of Fig. 1;
Among the figure: 1, circular bottom plate, 2, the thin wall cylindrical shell model, 3, rectangular parallelepiped steel bar piece, 4, nut, 5, go up screw rod, 6, positive left-hand thread adjustable sleeve, 7, screw rod down, 8, bolt, 9, rigid platfor, 10, Magnetic gauge stand, 11, dial gauge.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, non-uniform settling generation device in the utility model Thin-Wall Cylindrical Shells structural test comprises: circular bottom plate 1, rigid platfor 9 and several sedimentation transfer devices, the sedimentation transfer device evenly is fixed between circular bottom plate 1 and the rigid platfor 9 along circumference.The sedimentation transfer device comprises rectangular parallelepiped steel bar piece 3, last screw rod 5, positive left-hand thread adjustable sleeve 6, following screw rod 7, Magnetic gauge stand 10, dial gauge 11.3 lower surfaces that are welded in circular bottom plate 1 of rectangular parallelepiped steel bar piece, one end of last screw rod 5 and following screw rod 7 screws in positive left-hand thread adjustable sleeve 6 respectively, the other end of last screw rod 5 is fixed on the rectangular parallelepiped steel bar piece 3 by nut, the other end of following screw rod 7 is fixed on the rigid platfor 9 by bolt 8, Magnetic gauge stand 10 is fixed on the rigid platfor 9, and Magnetic gauge stand 10 supports dial gauge 11 by bracing frame.
The course of work of the present utility model is as follows:
1, thin wall cylindrical shell model 2 is bonded on the circular bottom plate 1 by glass cement.
2, regulate bracing frame, make all dial gauges 11 aim at the circumference bottom of thin wall cylindrical shell model 2.
3, regulate positive left-hand thread adjustable sleeve 6, produce sedimentation deformation, this displacement can pass to circular bottom plate 1 by rectangular parallelepiped steel bar piece 3, passes to thin wall cylindrical shell model 2 at last.
4, dial gauge 11 is measured the size of thin wall cylindrical shell model 2 peripheral sedimentation deformations.
Circular bottom plate adopts thinner thickness (as 2mm) but intensity height, steel plate that ductility is good, guarantees circular bottom plate easy deformation and cracky not; Rigid platfor need have enough rigidity (can adopt the thick steel plate of 25mm).
Because rigid platfor 9 rigidity are very big, can produce any distortion hardly, guaranteed the feasibility that non-uniform settling transmits, guaranteed that also dial gauge 11 records the accuracy of displacement, so dial gauge 11 resulting displacement datas are exactly the size of thin wall cylindrical shell model periphery sedimentation deformation.
Claims (1)
1. the non-uniform settling generation device in the Thin-Wall Cylindrical Shells structural test is characterized in that it comprises: circular bottom plate (1), rigid platfor (9) and several sedimentation transfer devices; The sedimentation transfer device evenly is fixed between circular bottom plate (1) and the rigid platfor (9) along circumference; Wherein, described sedimentation transfer device comprises rectangular parallelepiped steel bar piece (3), last screw rod (5), positive left-hand thread adjustable sleeve (6), following screw rod (7), Magnetic gauge stand (10) and dial gauge (11); Rectangular parallelepiped steel bar piece (3) point is welded in the lower surface of circular bottom plate (1), last screw rod (5) and following screw rod (7) screw in the two ends of positive left-hand thread adjustable sleeve (6) respectively, the other end of last screw rod (5) is fixed on the rectangular parallelepiped steel bar piece (3) by nut, the other end of following screw rod (7) is fixed on the rigid platfor (9) by bolt (8), Magnetic gauge stand (10) is fixed on the rigid platfor (9), and Magnetic gauge stand (10) supports dial gauge (11) by bracing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206720681U CN201945289U (en) | 2010-12-21 | 2010-12-21 | Device for producing differential settlements during thin-walled cylindrical shell structure test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206720681U CN201945289U (en) | 2010-12-21 | 2010-12-21 | Device for producing differential settlements during thin-walled cylindrical shell structure test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201945289U true CN201945289U (en) | 2011-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206720681U Expired - Lifetime CN201945289U (en) | 2010-12-21 | 2010-12-21 | Device for producing differential settlements during thin-walled cylindrical shell structure test |
Country Status (1)
| Country | Link |
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| CN (1) | CN201945289U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121815A (en) * | 2010-12-21 | 2011-07-13 | 浙江大学 | Differential settlement producing device and method for thin-walled cylindrical shell structure test |
| CN104034547A (en) * | 2014-06-19 | 2014-09-10 | 同济大学 | Support release device for simulating component failure in structural collapse test |
| CN106500660A (en) * | 2016-10-31 | 2017-03-15 | 东北石油大学 | A kind of controllable spherical tank foundation uneven settlement experimental provision |
-
2010
- 2010-12-21 CN CN2010206720681U patent/CN201945289U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121815A (en) * | 2010-12-21 | 2011-07-13 | 浙江大学 | Differential settlement producing device and method for thin-walled cylindrical shell structure test |
| CN102121815B (en) * | 2010-12-21 | 2012-07-04 | 浙江大学 | Differential settlement producing device and method for thin-walled cylindrical shell structure test |
| CN104034547A (en) * | 2014-06-19 | 2014-09-10 | 同济大学 | Support release device for simulating component failure in structural collapse test |
| CN106500660A (en) * | 2016-10-31 | 2017-03-15 | 东北石油大学 | A kind of controllable spherical tank foundation uneven settlement experimental provision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110824 Effective date of abandoning: 20120704 |