CN102359186B - Temperature stress control expansion joint - Google Patents
Temperature stress control expansion joint Download PDFInfo
- Publication number
- CN102359186B CN102359186B CN 201110306935 CN201110306935A CN102359186B CN 102359186 B CN102359186 B CN 102359186B CN 201110306935 CN201110306935 CN 201110306935 CN 201110306935 A CN201110306935 A CN 201110306935A CN 102359186 B CN102359186 B CN 102359186B
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- sleeve
- disk spring
- right sleeve
- baffle plate
- worker
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- 238000011900 installation process Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 30
- 230000008878 coupling Effects 0.000 claims description 25
- 238000010168 coupling process Methods 0.000 claims description 25
- 238000005859 coupling reaction Methods 0.000 claims description 25
- 230000008646 thermal stress Effects 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 230000035882 stress Effects 0.000 description 12
- 238000010276 construction Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The invention discloses a temperature stress control expansion joint and belongs to a stress control device, and the temperature stress control expansion joint mainly comprises an inner part, a middle part and an outer part, wherein the inner layer is provided with a center guide pole, and the outer layer is provided with a left sleeve and a right sleeve, the middle layer comprises disk springs (4, 5 and 6) ad a rubber spring (10). The left sleeve is in contact and connection with the right sleeve. The path transferred by the expansion joint is as follows: the disk spring (4 and 6) generate deformation for realizing energy release under the action of a temperature load when a structure rod member bears an axial tensile stress; the disk spring (5) generates deformation for realizing energyrelease under the action of the temperature load when the structure rod member bears an axial pressure stress; and the rubber spring (10) can bear a relatively smaller initial pressure stress and canbear a sudden impact load. The temperature stress control expansion joint disclosed by the invention has a wide bearing force amplitude and can bear the tension stress and the pressure stress, is accurate in a force-transferring path, can generate corresponding deformation according to demands for releasing the temperature stress, and has good stability and simple and rapid installation process, and can be connected with circular steel pipes with different diameters.
Description
Technical field
The present invention relates to a kind of device of New temperature Stress Control, be specially a kind of member temperature stress release expansion coupling that can be widely used in the architectural space structure, belong to the Stress Control device.
Background technology
Along with the needs of enhancing and the social development of national economic strength, large span spatial structure has obtained swift and violent development in China, and the engineering number of applications increases, and form of structure also trends towards diversification.This to structure the safety in design, construction and use procedure have higher requirement.Space structures is high order statically-indeterminate structure system, and it is larger that structure is affected by temperature action, the construction measure part release temperature stress that adopt in existing space structure design and the work progress more, and processing method commonly used is as follows:
(1) shrinkage joint.It is the most frequently used a kind of measure of release temperature stress in the general structure that the shrinkage joint is set, but because the diversity of space structures form, the space that internal request is opened wide, middle part arrange the shrinkage joint may cause adverse effect to globality safety and the use function of structure;
(2) thermal stresses discharges one of form commonly used in large span spatial structure of node, the thermal stresses of this category node in can releasing structure.Yet owing to be subjected to the restriction of form of structure, node lacks versatility, can only design according to the cross section characteristics of concrete structure rod member (round steel pipe), makes troubles to engineering design and construction;
(3) the hinged plank support thermal stresses in the releasing structure on the whole, but its bearing capacity is limited.
Summary of the invention
The object of the invention has been to overcome the limitation of existing engineering thermal stresses control measure, a kind of thermal stresses expansion joint apparatus has been proposed, this expansion coupling is installed in structure and affected in the larger rod member by thermal stresses, it is large to have the bearing capacity amplitude, can release shaft to drawing, press thermal stresses, namely can discharge the thermal stresses in year larger situation of the positive and negative temperature difference; The expansion coupling end uses flange bolt to connect, and it is convenient and fast connection to carry out member in construction, reduces difficulty of construction; Go for different cross section diameter rod member, the expansion coupling structure is succinct, has the widely scope of application.
In order to achieve the above object, the present invention has adopted following technical scheme.A kind of control thermal stresses expansion coupling, it is characterized in that: described thermal stresses expansion coupling, comprise interior, in, outer three parts, internal layer is one " worker " type centre pilot (3), skin is sleeve, comprise left sleeve (1) and right sleeve (2), the intermediate layer is the plastic deformation part of expansion joint structure, comprises disk spring (4), (5), (6) and rubber spring (10).Left sleeve (1) is cylindrical tube, and an end adopts the flange sealing, and another sealing end center drilling, hole can satisfy centre pilot and pass; Right sleeve (2) is cylindrical tube, one end adopts the flange sealing, the other end opens wide, at right sleeve (2) inner vertical shaft to being connected with a baffle plate with center hole, this baffle plate is divided into two parts with right sleeve, form semiclosed chamber between right sleeve flange blind end and the baffle plate, between right sleeve open end and baffle plate, form open chamber; Centre pilot (3) passes the centre bore of left sleeve (1) sealing end centre bore and right sleeve (2) baffle plate, the external surface of left sleeve (1) contacts and is socketed with the inner surface of the open chamber of right sleeve (2), has enough distances can satisfy the requirement of expansion coupling distortion between right sleeve (2) open end and the sealing of left sleeve (1) flange; In left sleeve (1), be equipped with disk spring (4) between " worker " type central guiding rod end inboard and the sealing end, between " worker " type central guiding rod end and left sleeve (1) the flange blind end rubber spring (10) be housed; In semiclosed chamber, be equipped with disk spring (6) between " worker " type central guiding rod end inboard and the baffle plate, between " worker " type central guiding rod end and right sleeve (2) the flange blind end rubber spring (10) be housed; Between left sleeve (1) sealing end and right sleeve (2) baffle plate, disk spring (5) is housed.
The thick cylinder that is preferably greater than open chamber of the inboard cylinder with sealing end of " worker " type guide rod end is thick in the left sleeve (1) at above-mentioned disk spring (4) place; The open chamber barrel of left sleeve barrel and right sleeve is reserved temporary fixed used hole (8) in the installation process simultaneously; Composite combined is adopted in disk spring (4), (5), (6), namely adopt simultaneously involutory and superimposed two kinds of combinations, satisfy the requirement of expansion coupling distortion and supporting capacity, disk spring (4) contacts with left sleeve (1) sealing end by the edge, by center and " worker " type centre pilot end in contact; Disk spring (5) contacts with left sleeve (1) sealing end external surface by the edge, contacts with right sleeve (2) baffle plate external surface by the edge; Disk spring (6) contacts with right sleeve baffle plate by the edge, by center and " worker " type centre pilot end in contact.
When centre pilot (3) contacts with left and right sleeve, do rounding for reducing friction and process.
Two ends, centre pilot left and right sides processing mode is different, and the left side uses nut (7) to connect according to installation requirement.
Do lubricated for reducing friction between the left and right sleeve contact surface.
Described thermal stresses expansion coupling, the form with structural member (round steel pipe) adopts flange bolt to be connected adopts flange when the round steel pipe end is connected with node, can realize that the round steel pipe of different-diameter is connected with node.
During work, this expansion coupling force path: disk spring (4) and (6) produce distortion to realize release temperature stress under the temperature load effect, when structural member bears axial tension stress; Disk spring (5) produces distortion to realize release temperature stress when structural member bears axial compression stress under the temperature load effect; Rubber spring can bear the compressive stress of less, and the load that withstands shocks.
Disk spring is the main member of expansion coupling carrying and distortion, and the selection of combining form is the principal element that affects expansion coupling supporting capacity and deformability.The present invention adopts the form of composite combined, and the difference of involutory combination can satisfy the requirement of different distortion amount; The difference of superimposed combination can satisfy the requirement of different axial forces.Accompanying drawing 3,4,5 has provided the contact form of disk spring (4), (5), (6) and sleeve and centre pilot, and the sheet of disk spring is several need to be adjusted according to carrying and deflection.
Need to carry out precompressed or prestretching according to rod member stress at normal temperatures during construction, to guarantee node supporting capacity at normal temperatures.
Control thermal stresses expansion coupling of the present invention, the strong stress that also can bear both direction of supporting capacity, force path is clear and definite, can produce as required corresponding distortion, good stability, installation process simple and fast, can be connected with the round steel pipe of different-diameter, have the widely scope of application.
Description of drawings
The sectional drawing of Fig. 1 embodiment of the invention;
The elevation of Fig. 2 embodiment of the invention;
The disk spring of Fig. 3 embodiment of the invention (4) combining form figure;
The disk spring of Fig. 4 embodiment of the invention (5) combining form figure;
The disk spring of Fig. 5 embodiment of the invention (6) combining form figure;
Among the figure: the 1-left sleeve; The right sleeve of 2-; The 3-centre pilot; The 4-disk spring; The 5-disk spring; The 6-disk spring; The 7-nut; The 8-reserving installation hole; The 9-flange; The 10-rubber spring.
The specific embodiment
Embodiment 1
Specify structure of the present invention and installation process below in conjunction with accompanying drawing 1-4.
Pack into the right end portion of centre pilot 3 of disk spring 6 after at first will making up, then right sleeve 2 is inserted in centre pilot, disk spring 5, left sleeve 1 successively be inserted in guide rod thereafter, carry out temporary fixed according to 8 pairs of holes of the interim hole of pre-designed installation, the disk spring 4 of packing into, use nut 7 that the left end of guide rod is fixed, remove the temporary fixed measure in installing hole hole after the installation, begin normal operation.The sectional drawing of the embodiment of the invention is seen Fig. 1; The elevation of the embodiment of the invention is seen Fig. 2.
A kind of control thermal stresses expansion coupling, comprise interior, in, outer three parts, internal layer is one " worker " type centre pilot 3, skin is sleeve, comprise left sleeve 1 and right sleeve 2, the intermediate layer is the plastic deformation part of expansion joint structure, comprises disk spring 4,5,6 and rubber spring 10.Left sleeve 1 is cylindrical tube, and an end adopts the flange sealing, and another sealing end center drilling, hole can satisfy centre pilot and pass; Right sleeve 2 is cylindrical tube, one end adopts the flange sealing, the other end opens wide, at right sleeve 2 inner vertical shafts to being connected with a baffle plate with center hole, this baffle plate is divided into two parts with right sleeve, form semiclosed chamber between right sleeve flange blind end and the baffle plate, between right sleeve open end and baffle plate, form open chamber; Centre pilot 3 passes the centre bore of left sleeve 1 sealing end centre bore and right sleeve 2 baffle plates, the external surface of left sleeve 1 contacts and is socketed with the inner surface of right sleeve 2 open chambers, has enough distances can satisfy the requirement of expansion coupling distortion between right sleeve 2 open ends and the sealing of left sleeve 1 flange; In left sleeve 1, be equipped with disk spring 4 between " worker " type central guiding rod end inboard and the sealing end, between " worker " type central guiding rod end and the left sleeve 1 flange blind end rubber spring 10 be housed; In semiclosed chamber, be equipped with disk spring 6 between " worker " type central guiding rod end inboard and the baffle plate, between " worker " type central guiding rod end and the right sleeve 2 flange blind ends rubber spring 10 be housed; Between left sleeve 1 sealing end and right sleeve 2 baffle plates, disk spring 5 is housed.The thick cylinder that is preferably greater than open chamber of the inboard cylinder with sealing end of " worker " type guide rod end is thick in the left sleeve 1 at disk spring 4 places; The open chamber barrel of left sleeve barrel and right sleeve is reserved temporary fixed used hole 8 in the installation process simultaneously; Disk spring 4,5,6 adopts composite combined, namely adopts simultaneously involutory and superimposed two kinds of combinations, satisfies the requirement of expansion coupling distortion and supporting capacity, and disk spring 4 contacts with left sleeve 1 sealing end by the edge, by center and " worker " type centre pilot end in contact; Disk spring 5 contacts with left sleeve 1 sealing end external surface by the edge, contacts with right sleeve 2 baffle plate external surfaces by the edge; Disk spring 6 contacts with right sleeve baffle plate by the edge, by center and " worker " type centre pilot end in contact.Centre pilot 3 contacts and does rounding with left and right sleeve and processes.The centre pilot left side uses nut 7 to connect according to installation requirement.When work, the disk spring 4 in the expansion coupling, disk spring 5, disk spring 6 and rubber spring 10 all are to be in compressive state.
Accompanying drawing 3,4,5 has provided disk spring 4,5,6 and the contact form of sleeve and centre pilot, and the sheet of disk spring is several need to be adjusted according to carrying and deflection.
Claims (6)
1. a thermal stresses is controlled expansion coupling, it is characterized in that: comprise interior, in, outer three parts, internal layer is one " worker " type centre pilot (3), skin is sleeve, comprise left sleeve (1) and right sleeve (2), the intermediate layer is the plastic deformation part of expansion joint structure, comprises disk spring (4), (5), (6) and rubber spring (10); Left sleeve (1) is cylindrical tube, and an end adopts the flange sealing, and another sealing end center drilling, hole can satisfy centre pilot and pass; Right sleeve (2) is cylindrical tube, one end adopts the flange sealing, the other end opens wide, at right sleeve (2) inner vertical shaft to being connected with a baffle plate with center hole, this baffle plate is divided into two parts with right sleeve, form semiclosed chamber between right sleeve flange blind end and the baffle plate, between right sleeve open end and baffle plate, form open chamber; Centre pilot (3) passes the centre bore of left sleeve (1) sealing end centre bore and right sleeve (2) baffle plate, the external surface of left sleeve (1) contacts and is socketed with the inner surface of the open chamber of right sleeve (2), has enough distances can satisfy the requirement of expansion coupling distortion between right sleeve (2) open end and the sealing of left sleeve (1) flange; In left sleeve (1), between " worker " type central guiding rod end inboard and the sealing end, be equipped with disk spring (4), between " worker " type central guiding rod end and left sleeve (1) the flange blind end rubber spring (10) be housed; In semiclosed chamber, be equipped with disk spring (6) between " worker " type central guiding rod end inboard and the baffle plate, between " worker " type central guiding rod end and right sleeve (2) the flange blind end rubber spring (10) be housed; Between left sleeve (1) sealing end and right sleeve (2) baffle plate, disk spring (5) is housed.
2. according to a kind of thermal stresses control expansion coupling of claim 1, it is characterized in that the thick cylinder greater than open chamber of the inboard cylinder with sealing end of " worker " type guide rod end is thick in the left sleeve (1) at above-mentioned disk spring (4) place.
3. according to a kind of thermal stresses control expansion coupling of claim 1, it is characterized in that the open chamber barrel of left sleeve barrel and right sleeve is reserved temporary fixed used hole (8) in the installation process simultaneously.
4. according to a kind of thermal stresses control expansion coupling of claim 1, it is characterized in that disk spring (4), (5), (6) are adopted the complex form of involutory and superimposed two kinds of combinations simultaneously.
5. according to a kind of thermal stresses control expansion coupling of claim 4, it is characterized in that disk spring (4) contacts with left sleeve (1) sealing end by the edge, by center and " worker " type centre pilot end in contact; Disk spring (5) contacts with left sleeve (1) sealing end external surface by the edge, contacts with right sleeve (2) baffle plate external surface by the edge; Disk spring (6) contacts with right sleeve baffle plate by the edge, by center and " worker " type centre pilot end in contact.
6. according to a kind of thermal stresses control expansion coupling of claim 1, it is characterized in that two ends, centre pilot left and right sides processing mode is different, the left side uses nut (7) to connect according to installation requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110306935 CN102359186B (en) | 2011-10-11 | 2011-10-11 | Temperature stress control expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110306935 CN102359186B (en) | 2011-10-11 | 2011-10-11 | Temperature stress control expansion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102359186A CN102359186A (en) | 2012-02-22 |
| CN102359186B true CN102359186B (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110306935 Expired - Fee Related CN102359186B (en) | 2011-10-11 | 2011-10-11 | Temperature stress control expansion joint |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619284B (en) * | 2012-04-28 | 2014-04-23 | 北京市建筑工程研究院有限责任公司 | Telescopic steel structure connecting joint |
| CN106906912B (en) * | 2017-04-25 | 2022-06-21 | 沈阳建筑大学 | Staged energy consumption limiting support |
| CN108050054B (en) * | 2017-11-29 | 2024-10-15 | 西安航天泵业有限公司 | Temperature difference deformation compensator and double-cylinder segment type multistage pump |
| CN110805636B (en) * | 2019-10-16 | 2021-11-05 | 南京航空航天大学 | Annular piezoelectric stack-based damper |
| CN114482271A (en) * | 2022-02-24 | 2022-05-13 | 浙江大东吴建筑科技有限公司 | Column base node device with telescopic large-span structure |
Citations (7)
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|---|---|---|---|---|
| US3245328A (en) * | 1961-07-06 | 1966-04-12 | Rheinstahl Union Brueckenbau | Expansion joint for road covering structures |
| DE4419558A1 (en) * | 1993-06-04 | 1994-12-08 | Kawatetsu Kenzai Kogyo Kk | Double-steel-tube structural part |
| EP0818630A1 (en) * | 1996-07-10 | 1998-01-14 | HILTI Aktiengesellschaft | Self cutting undercut fastening anchor |
| CN201011087Y (en) * | 2007-01-15 | 2008-01-23 | 王井源 | Hidden conical telescopic anchoring member |
| CN101147932A (en) * | 2007-10-31 | 2008-03-26 | 朱惠兴 | Gapless expansion and retraction reel with automatic clamping function |
| CN201865199U (en) * | 2010-11-25 | 2011-06-15 | 上海庆华蜂巢建材有限公司 | Installation node of honeycomb board structure grating |
| CN202416568U (en) * | 2011-10-11 | 2012-09-05 | 北京工业大学 | Temperature stress controlling expansion joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4138796B2 (en) * | 2005-11-10 | 2008-08-27 | 飛島建設株式会社 | Steel pipe placing method and steel pipe placing tool |
-
2011
- 2011-10-11 CN CN 201110306935 patent/CN102359186B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3245328A (en) * | 1961-07-06 | 1966-04-12 | Rheinstahl Union Brueckenbau | Expansion joint for road covering structures |
| DE4419558A1 (en) * | 1993-06-04 | 1994-12-08 | Kawatetsu Kenzai Kogyo Kk | Double-steel-tube structural part |
| EP0818630A1 (en) * | 1996-07-10 | 1998-01-14 | HILTI Aktiengesellschaft | Self cutting undercut fastening anchor |
| CN201011087Y (en) * | 2007-01-15 | 2008-01-23 | 王井源 | Hidden conical telescopic anchoring member |
| CN101147932A (en) * | 2007-10-31 | 2008-03-26 | 朱惠兴 | Gapless expansion and retraction reel with automatic clamping function |
| CN201865199U (en) * | 2010-11-25 | 2011-06-15 | 上海庆华蜂巢建材有限公司 | Installation node of honeycomb board structure grating |
| CN202416568U (en) * | 2011-10-11 | 2012-09-05 | 北京工业大学 | Temperature stress controlling expansion joint |
Non-Patent Citations (3)
| Title |
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| JP特开2007-132091A 2007.05.31 |
| 刘奕光.水电站压力钢管伸缩节结构分析方法.《人民长江》.1984,(第4期),43-54. |
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| CN102359186A (en) | 2012-02-22 |
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Granted publication date: 20131016 |