CN101525909A - Hinged two-channel steel flexible restricting support - Google Patents
Hinged two-channel steel flexible restricting support Download PDFInfo
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- CN101525909A CN101525909A CN200910038180A CN200910038180A CN101525909A CN 101525909 A CN101525909 A CN 101525909A CN 200910038180 A CN200910038180 A CN 200910038180A CN 200910038180 A CN200910038180 A CN 200910038180A CN 101525909 A CN101525909 A CN 101525909A
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Abstract
The invention relates to a hinged two-channel steel flexible restricting support which comprises an outer sleeve and an inner core. The inner core has a two-channel steel structure that web plates of two channel steels are arranged in parallel and are opposite in notch directions; and the two channel steels are fixedly connected at an upper flange and a lower flange. The invention adopts a support mode of novel section construction and node connection, and the support can be applied in newly-built structures of anti-seismic areas and anti-seismic reinforcement and reconstruction on the prior structure.
Description
Technical field
The present invention relates to field of civil engineering, particularly relate to a kind of hinged two-channel steel flexible restricting and support.
Background technology
The member that buckling-restrained support does not have flexing to take place when being a kind of pressurized.It is generally acknowledged, be supported on and work to bear axial force in the structure.Common being supported in the wind resistance seismic design is that wind resistance anti-seismic performance by strengthening structure itself guarantees rigidity, intensity and ductility, but this support lacks capacity of self-regulation, flexing takes place when pressurized easily deactivates part-structure, reduce the anti-side rigidity of structure, cause the load at other position to increase, unfavorable to structure.And buckling-restrained support is made up of urceolus and kernel, and axial force is all born by kernel unit; Kernel flexing when pressurized is avoided in the bending of urceolus constraint kernel unit, reduces the distortion of structure, also satisfies the functional requirement of safety, usability and comfort level simultaneously.So buckling-restrained support is a kind of quite reasonable support, and in the wind resistance antidetonation, show superiority preferably.
In recent years, buckling-restrained support because of its from heavy and light, flexible arrangement and easy for installation, embody superiority preferably aspect building structure basic cost, the construction speed, especially more can embody its convenient and swift and economic performance aspect the reinforcing of existed building structure.The structural system that buckling-restrained support and framework are formed shows splendid supporting capacity and energy-dissipating property etc. equally, this be because: during (1) little shake, buckling-restrained support frame linear elasticity rigidity height can satisfy the deformation requirements of standard easily; (2) because can tension and the pressurized surrender, buckling-restrained support frame have been eliminated the support buckling problem of traditional support frame, and stronger and more stable energy energy dissipation capacity is arranged when macroseism; (3) supporting member cans be compared to renewable fuse in the structural system, can protect other members to exempt from destruction, and after the big shake, can change the support of damage easily; (4) rigidity of Zhi Chenging and intensity are easy to adjust, buckling-restrained support frame flexible design, and in nonelastic analysis, can simulate the hysteresis loop of buckling-restrained support easily; (5) in seismic hardening, buckling-restrained support frame more has superiority than conventional support system, because design can make the latter's ground expense more expensive.
But also there is deficiency in domestic existing buckling-restrained support, and is specific as follows:
(1) deficiency of material and section form
The kernel of the common buckling-restrained support of a is generally the low-yield steel, and China still can not produce low-yield steel and goods, and the structural steel that has a large capacity and a wide range is generally Q235 and above carbon steel and low-alloy steel;
The buckling-restrained support that b is common mostly is single member section, and China mainland does not still provide hot rolling " ten " font material, and only " one " font cross section is difficult to satisfy the demand of big rigidity, big yield force;
C needs further research if make " ten " word cross section with the steel plate welding at aspects such as thermal stresses, permanent set, material fragility, low-cycle fatigue.The existing relatively difficulty of aspect of drawing materials that is supported in the native land.
(2) deficiency of node connected mode
Domestic common buckling-restrained support often adopts docking mode to combine with main structure body, and be rigidly connected belong to more.Its deficiency shows:
The arbitrary end of a need use multi-disc continued access plate and a large amount of bolts to carry out the splice program of complexity at joint, causes the long and shortcomings such as bolt quantity is more, the construction complicated, increase cost of the type support engages length;
B works as structure under earthquake or high wind effect, and superstructure increases the active force of node, and when skew took place general frame, the junction can produce additional bending moment, and power of being born and moment of flexure increase, and member is destroyed in advance.
Summary of the invention
The purpose of this invention is to provide a kind of hinged two-channel steel flexible restricting and support, adopt a kind of new type section to constitute the supporting way that is connected with node, this kind support can be applicable to the seismic hardening and the transformation of antidetonation area newly-built structure and existing structure.
Technical scheme of the present invention can realize by following technical measures, a kind of hinged two-channel steel flexible restricting supports, comprise outer sleeve and kernel, it is characterized in that described kernel is a double flute steel formula structure: the web of two channel-section steels is arranged in parallel, and the notch direction is opposite, and described two channel-section steels are fixedly connected respectively at place, the upper and lower edge of a wing.
The present invention can do following improvement, leaves the gap between the web of described two channel-section steels, and is all fixing by the batten plate welding between the top flange of two channel-section steels, between the bottom flange.
The present invention can also do following improvement, and fluid concrete between described outer sleeve and the kernel also is provided with membrane layer at the external surface of described two channel-section steels.
The gap of the formation between two channel-section steels and the membrane layer of external surface can guarantee that peripheral constraint element neither transmits axial load and can keep operative constraint to kernel unit again.
The material of the membrane layer of the external surface of two channel-section steels of the present invention is a polythene material, and polythene material sticks on the external surface of two channel-section steels.
The end that hinged two-channel steel flexible restricting of the present invention supports also is provided with and is used for the linkage section that fixes with the building structure main body; Described linkage section comprises linkage section and the outer linkage section of sleeve in the sleeve, and linkage section is by the channel-section steel end of described kernel with add the strong constraint steel plate and form in the sleeve, and described to add the strong constraint steel plate parallel with the web of channel-section steel, and between the upper and lower edge of a wing of channel-section steel; The described web that adds strong constraint steel plate and channel-section steel all extends outside sleeve, constitutes linkage section outside the sleeve in the outside of outer sleeve.
The outer linkage section of sleeve of the present invention is provided with and is used for and the building structure main body fixing hinge hole that is hinged.
The present invention can also do following improvement, also is provided with flexible section between outer linkage section of described sleeve and the outer sleeve end face, and the depth of section of described flexible section is identical with the height of the channel-section steel web that is positioned at outer sleeve.Because flexible section is the movable section of outer sleeve, promptly when core segment member flexing as the activity space of outer sleeve, thereby its sectional dimension can not be greater than the size of outer sleeve.
The described web linkage section place outside sleeve that adds strong constraint steel plate and channel-section steel is widened, and the depth of section of the outer linkage section of sleeve is greater than the path length of described outer sleeve, thus the motion of restriction outer sleeve.
Can also be provided with the decoration tube that is used to cover up flexible section between the outer linkage section of described outer sleeve and sleeve, its depth of section is greater than the depth of section of the outer linkage section of sleeve.
As one embodiment of the present invention, the channel-section steel of described kernel and the material of batten plate are Q235, and the material that adds the strong constraint steel plate is Q345.
Compared with prior art, advantage of the present invention is:
Hinged two-channel steel flexible restricting of the present invention supports some defectives that are expected to overcome existing buckling-restrained support, thereby new building and existed building are played an important role aspect the energy-dissipating and shock-absorbing.Following for to compare with existing buckling-restrained braced structures, hinged two-channel steel flexible restricting supports the advantage that expection can reach:
(1) the member power transmission is directly changed
During construction, core component of the present invention (double flute steel) directly is connected with end plate by pin, does not have the conversion through other connecting elements, has avoided the influence of attachment weld residual stress; And increased at linkage section and to have added the strong constraint steel plate, outside sleeve, destroyed to prevent core component (double flute steel).
(2) node connects summary
A should support with end plate and be connected by pin, only bore the effect of pulling force and pressure, compared with existing buckling-restrained support, had reduced using and the bonding length of support and end plate of bolt, and it is simpler to construct;
The axis that b should support is by the intersection point of beam column axis, and the employing of the junction of support and structure is hinged, does the time spent when running into earthquake or high wind etc., and the junction can be rotated, and can produce additional bending moment to agent structure in no instance;
C is when member is destroyed, and this support also can conveniently be replaced.
(3) the homemade generalization of material
This kind of a supports the Q345 outer sleeve, Q235 channel-section steel and the batten plate that are adopted and is the general material of China's steel market, and general flexing supports required low-yield steel, and China's steel market still lacks high-quality low-yield steel and goods; And the kernel that supports is that two channel-section steels are welded, solved domestic such cross section lack maybe can not meet the demands wait difficult;
The b polyethylene also is the general material on the China market.During design, need, form gap and membrane layer, guarantee that peripheral constraint element neither transmits axial load and can keep operative constraint to kernel unit again at channel-section steel paste outside polythene material.
Description of drawings
Fig. 1 is the construction schematic diagram that hinged two-channel steel flexible restricting of the present invention supports;
Fig. 2 is that the I-I of Fig. 1 is to analysing and observe enlarged diagram;
Fig. 3 is that the II-II of Fig. 2 is to the sectional structure schematic diagram;
Fig. 4 is the schematic diagram of linkage section half-section in the sleeve of the present invention;
Fig. 5 is the schematic diagram of the outer linkage section half-section on of sleeve of the present invention.
The specific embodiment
The specific embodiment of the present invention such as Fig. 1～shown in Figure 5, a kind of hinged two-channel steel flexible restricting supports, and comprises outer sleeve 1 and kernel, and the material of outer sleeve 1 is Q345, is used to retrain kernel unit, avoids kernel unit flexing when pressurized; Kernel is a double flute steel formula structure: the web of two channel-section steels 2 is arranged in parallel, and the notch direction is opposite, leaves the gap between the web of two channel-section steels 2, and is all fixing by batten plate 3 welding between the top flange of two channel-section steels 2, between the bottom flange.Fluid concrete 5 between outer sleeve 1 and the kernel, also paste the layer of polyethylene material at the external surface of two channel-section steels 2, as membrane layer 4.The end that hinged two-channel steel flexible restricting supports also is provided with and is used for the linkage section that fixes with the building structure main body; Linkage section comprises linkage section 7 and the outer linkage section 8 of sleeve in the sleeve, linkage section 7 is by the channel-section steel end of kernel with add strong constraint steel plate 11 and form in the sleeve, it is parallel with the web of channel-section steel 2 to add strong constraint steel plate 11, and be positioned at channel-section steel 2 on, between the bottom flange, be that linkage section 7 comprises that altogether two add strong constraint steel plate 11 in the sleeve, lay respectively at each channel-section steel 2 on, between the bottom flange, add the web place that strong constraint steel plate 11 is close to channel-section steel 2, and on channel-section steel 2, the bottom flange welding is fixing, the web that strong constraint steel plate 11 has covered channel-section steel 2 that adds owing to linkage section 7 in the sleeve, therefore, in outer sleeve 1, the external surface that adds strong constraint steel plate 11 is also pasted the layer of polyethylene material, thereby forms a complete membrane layer 4 in outer sleeve 1.The web 21 that adds strong constraint steel plate 7 and channel-section steel 2 all extends outside sleeve, outside at outer sleeve 1 constitutes linkage section 8 outside the sleeve, adding strong constraint steel plate 11 widens with web 21 linkage section 8 places outside sleeve of channel-section steel 2, and the two is fixed as one in edge's welding, and the depth of section of the outer linkage section 8 of sleeve is greater than the path length of outer sleeve 1.Also be provided with on the outer linkage section 8 of sleeve and be used for and the building structure main body fixing hinge hole 12 that is hinged.Also be provided with flexible section 9 between outer linkage section 8 of sleeve and outer sleeve 1 end face, the depth of section of flexible section 9 is identical with the height of channel-section steel 2 webs that are positioned at outer sleeve 1.Also be provided with the decoration tube 13 that is used to cover up flexible section 9 between the outer linkage section 8 of outer sleeve 1 and sleeve, decorate tube 13 and do not stress, its depth of section is greater than the depth of section of the outer linkage section 8 of sleeve.The material of channel-section steel 2 and batten plate 3 is Q235, and the material that adds strong constraint steel plate 11 is Q345.
Implementation method is as follows: end plate in the building structure main body 6 and hinged two-channel steel flexible restricting of the present invention are supported use pin hinged, and the axis that should support is by the central axis intersection point 10 of Liang Yuzhu.This hinged two-channel steel flexible restricting supports and the linkage section of end plate 6 comprises linkage section 7 and the outer linkage section 8 of sleeve in the sleeve, linkage section 7 carries out the transition to the outer linkage section 8 of sleeve by flexible section 9 in the sleeve, the interior linkage section 7 of sleeve adds strong constraint steel plate 11 by Q235 channel-section steel 2 and Q345 and forms, linkage section 8 places outside sleeve, the cross section of Q235 channel-section steel 2 eliminate its edge of a wing, keep its web part and web is widened, the strong constraint steel plate 11 that adds after web 21 after it is widened is widened with Q345 constitutes the outer linkage section 8 of sleeve, and the outer linkage section 8 of sleeve is hinged with end plate 6 usefulness pins.
Claims (10)
1. a hinged two-channel steel flexible restricting supports, comprise outer sleeve (1) and kernel, it is characterized in that described kernel is a double flute steel formula structure: the web of two channel-section steels (2) is arranged in parallel, and the notch direction is opposite, and described two channel-section steels (2) are fixedly connected respectively at place, the upper and lower edge of a wing.
2. a kind of hinged two-channel steel flexible restricting according to claim 1 supports, and it is characterized in that leaving the gap between the web of described two channel-section steels (2), all fixes by batten plate (3) welding between the top flange of two channel-section steels (2), between the bottom flange.
3. a kind of hinged two-channel steel flexible restricting according to claim 2 supports, and it is characterized in that fluid concrete (5) between described outer sleeve (1) and the kernel, also is provided with membrane layer (4) at the external surface of described two channel-section steels (2).
4. a kind of hinged two-channel steel flexible restricting according to claim 3 supports, and it is characterized in that the material of membrane layer (4) of the external surface of described two channel-section steels (2) is a polythene material, and polythene material sticks on the external surface of two channel-section steels (2).
5. support according to claim 1 or 2 or 3 or 4 described a kind of hinged two-channel steel flexible restrictings, it is characterized in that end that described hinged two-channel steel flexible restricting supports also is provided with and be used for the linkage section that fixes with the building structure main body; Described linkage section comprises linkage section (7) and the outer linkage section (8) of sleeve in the sleeve, linkage section (7) is by channel-section steel (2) end of described kernel with add strong constraint steel plate (11) and form in the sleeve, described to add strong constraint steel plate (11) parallel with the web of channel-section steel (2), and be positioned between the upper and lower edge of a wing of channel-section steel (2); The described web that adds strong constraint steel plate (11) and channel-section steel (2) all extends outside sleeve, constitutes linkage section (8) outside the sleeve in the outside of outer sleeve (1).
6. a kind of hinged two-channel steel flexible restricting according to claim 5 supports, and it is characterized in that the outer linkage section (8) of described sleeve is provided with to be used for and the building structure main body fixing hinge hole (12) that is hinged.
7. a kind of hinged two-channel steel flexible restricting according to claim 6 supports, it is characterized in that also being provided with flexible section (9) between outer linkage section (8) of described sleeve and outer sleeve (1) end face, the depth of section of described flexible section (9) is identical with the height of the channel-section steel that is positioned at outer sleeve (1) (2) web.
8. a kind of hinged two-channel steel flexible restricting according to claim 7 supports, it is characterized in that the described web linkage section (8) sleeve outside that adds strong constraint steel plate (11) and channel-section steel (2) locates to widen, and sleeve outward the depth of section of linkage section (8) greater than the path length of described outer sleeve (1).
9. a kind of hinged two-channel steel flexible restricting according to claim 8 supports, it is characterized in that also being provided with the decoration tube (13) that is used to cover up flexible section (9) between the outer linkage section (8) of described outer sleeve (1) and sleeve, its depth of section is greater than the depth of section of the outer linkage section (8) of sleeve.
10. a kind of hinged two-channel steel flexible restricting according to claim 9 supports, and it is characterized in that the channel-section steel (2) of described kernel and the material of batten plate (3) are Q235, and the described material that adds strong constraint steel plate (11) is Q345.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910038180A CN101525909A (en) | 2009-03-25 | 2009-03-25 | Hinged two-channel steel flexible restricting support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910038180A CN101525909A (en) | 2009-03-25 | 2009-03-25 | Hinged two-channel steel flexible restricting support |
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| CN101525909A true CN101525909A (en) | 2009-09-09 |
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| CN200910038180A Pending CN101525909A (en) | 2009-03-25 | 2009-03-25 | Hinged two-channel steel flexible restricting support |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926478A (en) * | 2012-10-25 | 2013-02-13 | 沈阳建筑大学 | U-bar isolation anti-buckling energy dissipation support |
| CN102953451A (en) * | 2012-09-06 | 2013-03-06 | 上海蓝科钢结构技术开发有限责任公司 | TJH clean-steel buckling restrained bracing member |
| CN104912227A (en) * | 2015-06-18 | 2015-09-16 | 武汉建工集团股份有限公司 | End part connecting node for split buckling constraint support rod and installing method |
| CN113833340A (en) * | 2021-10-13 | 2021-12-24 | 重庆大学 | Multiple energy consumption damper with energy consumption time sequence and optimization design method thereof |
-
2009
- 2009-03-25 CN CN200910038180A patent/CN101525909A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953451A (en) * | 2012-09-06 | 2013-03-06 | 上海蓝科钢结构技术开发有限责任公司 | TJH clean-steel buckling restrained bracing member |
| CN102953451B (en) * | 2012-09-06 | 2015-10-28 | 上海蓝科建筑减震科技股份有限公司 | A kind of TJH clean |
| CN102926478A (en) * | 2012-10-25 | 2013-02-13 | 沈阳建筑大学 | U-bar isolation anti-buckling energy dissipation support |
| CN102926478B (en) * | 2012-10-25 | 2015-01-14 | 沈阳建筑大学 | U-bar isolation anti-buckling energy dissipation support |
| CN104912227A (en) * | 2015-06-18 | 2015-09-16 | 武汉建工集团股份有限公司 | End part connecting node for split buckling constraint support rod and installing method |
| CN113833340A (en) * | 2021-10-13 | 2021-12-24 | 重庆大学 | Multiple energy consumption damper with energy consumption time sequence and optimization design method thereof |
| CN113833340B (en) * | 2021-10-13 | 2022-11-29 | 重庆大学 | Multiple energy consumption damper with energy consumption time sequence and optimization design method thereof |
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Open date: 20090909 |