CN104594521A - Buckling-restrained steel support capable of providing additional damping - Google Patents
Buckling-restrained steel support capable of providing additional damping Download PDFInfo
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- CN104594521A CN104594521A CN201510048257.9A CN201510048257A CN104594521A CN 104594521 A CN104594521 A CN 104594521A CN 201510048257 A CN201510048257 A CN 201510048257A CN 104594521 A CN104594521 A CN 104594521A
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Abstract
The invention relates to a buckling-restrained steel support capable of providing additional damping. The steel support is characterized by comprising a straight low-strength steel core, a circular or box-shaped high-strength steel bushing, built-in filler, an external constraint steel sleeve and a joint stiffening rib, wherein the straight low-strength steel core is arranged in the circular or box-shaped high-strength steel bushing; the circular or box-shaped high-strength steel bushing is arranged in the external constraint steel sleeve in a penetrating manner; the built-in filler is arranged between the circular or box-shaped high-strength steel bushing and the external constraint steel sleeve; the joint stiffening rib is welded with the two ends of the straight low-strength steel core and the circular or box-shaped high-strength steel bushing respectively. The buckling-restrained steel support is firstly a structural member, can provide lateral stiffness and bearing capacity for the structure during elastic design of small earthquake and can also provide the additional damping ratio for the structure during the small earthquake, the earthquake force stressed by the structure is reduced, the buckling-restrained steel support has the double functions of buckling-restrained steel support and axial tension and compress of a metal damper, the construction cost can be reduced, and the earthquake resistance performance of the structure is improved.
Description
Technical field
The present invention relates to building structure aseismatic prevention technique field, be specifically related to a kind of anti-buckling bracing members that additional damping is provided.
Background technology
China is earthquake-prone region, even if building structure is not collapsed in violent earthquake, also very macrolesion can occur, the normal use after impact shake.Anti-buckling support is a kind of antidetonation new technology, and it prevents stressed core compressive buckling by tied mechanism, makes its tensile and compressive property close.Be arranged on original structure, can be used as the additional dissipative member of structure when " middle shake " and " shaking greatly ", enter plastic state prior to main structure body, dissipation inputting seismic energy, provides additional damping, to protect agent structure, alleviates earthquake.
According to China's Anti-quake Architectural Structure Design code requirement, building structure should meet elastic design when " little shake ", that is, component as main structure body all should remain on elastic stage, comprise anti-buckling support, so anti-buckling support can only play damping action when " middle shake " and " shaking greatly ", so, a definite limitation is subject to for its scope of application.
On the other hand, when the elastic design of building structure reply " little shake ", in order to reduce earthquake effect, save construction costs, also introducing this concept of additional damping ratio, namely by adding energy-dissipating device for structure, reducing seismic shear suffered by structure, but this additional energy-dissipating device can not use as structural element, can not consider its rigidity and bearing capacity during design.
Summary of the invention
The object of the invention is to, provide a kind of anti-buckling bracing members providing additional damping, first it is a structural element, when " little shake " elastic design for structure provides anti-side rigidity and bearing capacity, can improve structure anti-side efficiency; Secondly, it when " little shake " for structure provides additional damping ratio, can reduce seismic forces suffered by structure, thus makes structure design more economically again.
In order to achieve the above object, the present invention is achieved in that
There is provided an anti-buckling bracing members for additional damping, it comprises yi word pattern Medium And Low Strength Steels core, the circle of inner hollow both ends open or box high-strength steel sleeve pipe, built-in inserts, external constraint steel bushing, node stiffening rib; Yi word pattern Medium And Low Strength Steels core is placed in circle or box high-strength steel inside pipe casing, and both fit tightly; Thus circle or box high-strength steel sleeve pipe are retrained yi word pattern Medium And Low Strength Steels core, prevent its compressive buckling; Circular or box high-strength steel sleeve pipe is arranged in external constraint steel bushing, and built-in inserts is filled in circle or between box high-strength steel sleeve pipe and external constraint steel bushing, for retraining circle or box high-strength steel sleeve pipe, prevents its compressive buckling; Node stiffening rib is welded to connect with yi word pattern Medium And Low Strength Steels core and two ends that are circular or box high-strength steel sleeve pipe thus transmits respectively and supports axial force.
Further, the anti-buckling bracing members of described provided additional damping, the optimal cross section of node stiffening rib is cross.
Further, the anti-buckling bracing members of described provided additional damping, described yi word pattern Medium And Low Strength Steels core steel strength used is lower than circular or box high-strength steel sleeve pipe.
The invention has the advantages that, utilize the steel of varying strength under identical axial deformation, enter this basic mechanical principle different on opportunity of surrender, the additional damping parts (i.e. this anti-buckling support) be made up of low yield strength steel are made to be introduced into surrender, for " little shake " design provides additional damping ratio, thus make the structural element part be made up of the steel that yield strength is relatively high, elastic stage is remained on when " little shake ", for structure provides Rigidity and strength, and also can enter plasticity power consumption state time " middle shake " and " shaking greatly ", dissipation inputting seismic energy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is 2-2 cross-sectional view (2-2) in Fig. 1.
Fig. 3 is 3-3 cross-sectional view (3-3) in Fig. 1.
Fig. 4 is 4-4 cross-sectional view (4-4) in Fig. 1.
Fig. 5 is 5-5 cross-sectional view (5-5) in Fig. 1.
Fig. 6 is the arrangement schematic diagram of patent of the present invention in building structure.
Detailed description of the invention
The present invention is further illustrated below by way of specific embodiment.
As shown in Figures 1 to 6, a kind of anti-buckling bracing members that additional damping is provided, it comprises:
Yi word pattern low-intensity damping steel core 1 is placed in circle or box high-strength steel core inner 2; Node stiffening rib 5 is connected by side butt weld with yi word pattern low-intensity damping steel core 1 and two ends that are circular or box high-strength steel core 2 respectively; Be holistic node stiffening rib 5 by welding assembly, yi word pattern low-intensity damping steel core 1 and circular or box high-strength steel core 2 be placed in external constraint steel bushing 4; Inserts 3 waters between external constraint steel bushing 4 and circle or box high-strength steel core 2, and treat that concrete curing completes, the present invention makes complete.
First this anti-buckling bracing members is a structural element, when " little shake " elastic design for structure provides anti-side rigidity and bearing capacity, can improve structure anti-side efficiency; Secondly, it when " little shake " for structure provides additional damping ratio, can reduce seismic forces suffered by structure, thus makes structure design more economically again.It has the dual-use function of anti-buckling bracing members and axial push-pull metal damper, can reduce construction costs, improves structural seismic performance.
Claims (4)
1. an anti-buckling bracing members for additional damping can be provided, it is characterized in that: it comprises yi word pattern Medium And Low Strength Steels core, the circle of inner hollow both ends open or box high-strength steel sleeve pipe, built-in inserts, external constraint steel bushing, node stiffening rib; Yi word pattern Medium And Low Strength Steels core is placed in circle or box high-strength steel inside pipe casing, and both fit tightly; Thus circle or box high-strength steel sleeve pipe are retrained yi word pattern Medium And Low Strength Steels core, prevent its compressive buckling; Circular or box high-strength steel sleeve pipe is arranged in external constraint steel bushing, and built-in inserts is filled in circle or between box high-strength steel sleeve pipe and external constraint steel bushing, for retraining circle or box high-strength steel sleeve pipe, prevents its compressive buckling; Node stiffening rib is welded to connect with yi word pattern Medium And Low Strength Steels core and two ends that are circular or box high-strength steel sleeve pipe thus transmits respectively and supports axial force.
2. the anti-buckling bracing members providing additional damping according to claim 1, is characterized in that: the cross section of node stiffening rib is cross.
3. the anti-buckling bracing members providing additional damping according to claim 1, is characterized in that: described yi word pattern Medium And Low Strength Steels core steel strength used is lower than circular or box high-strength steel sleeve pipe.
4. the anti-buckling bracing members providing additional damping according to claim 1, is characterized in that: described built-in inserts is concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048257.9A CN104594521A (en) | 2015-01-30 | 2015-01-30 | Buckling-restrained steel support capable of providing additional damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048257.9A CN104594521A (en) | 2015-01-30 | 2015-01-30 | Buckling-restrained steel support capable of providing additional damping |
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| Publication Number | Publication Date |
|---|---|
| CN104594521A true CN104594521A (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510048257.9A Pending CN104594521A (en) | 2015-01-30 | 2015-01-30 | Buckling-restrained steel support capable of providing additional damping |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715067A (en) * | 2016-02-03 | 2016-06-29 | 北京堡瑞思减震科技有限公司 | H-shaped steel-support welding reinforcing device and installing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010000840A1 (en) * | 1999-06-30 | 2001-05-10 | Toru Takeuchi | Buckling restrained braces and damping steel structures |
| CN101440639A (en) * | 2008-12-10 | 2009-05-27 | 上海维固工程实业有限公司 | Flexion energy dissipation preventing support |
| CN202689227U (en) * | 2011-12-31 | 2013-01-23 | 上海蓝科钢结构技术开发有限责任公司 | TJII buckling restrained brace member |
| CN203284907U (en) * | 2013-06-04 | 2013-11-13 | 北京听风庐文化发展有限公司 | Core-replaceable and partially-filled type double-casing-pipe buckling-restrained brace |
| CN103924702A (en) * | 2014-04-01 | 2014-07-16 | 北京工业大学 | Double-casing energy-dissipation inner-core buckling restrained brace member with double yield points |
| CN103938748A (en) * | 2014-04-01 | 2014-07-23 | 北京工业大学 | Linear energy-consumption inner core buckling-restrained supporting component with double yield points |
| CN103938749A (en) * | 2014-04-01 | 2014-07-23 | 北京工业大学 | Cross energy-consumption inner core buckling-restrained supporting component with double yield points |
| CN204609031U (en) * | 2015-01-30 | 2015-09-02 | 中冶天工上海十三冶建设有限公司 | The anti-buckling bracing members of additional damping can be provided |
-
2015
- 2015-01-30 CN CN201510048257.9A patent/CN104594521A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010000840A1 (en) * | 1999-06-30 | 2001-05-10 | Toru Takeuchi | Buckling restrained braces and damping steel structures |
| CN101440639A (en) * | 2008-12-10 | 2009-05-27 | 上海维固工程实业有限公司 | Flexion energy dissipation preventing support |
| CN202689227U (en) * | 2011-12-31 | 2013-01-23 | 上海蓝科钢结构技术开发有限责任公司 | TJII buckling restrained brace member |
| CN203284907U (en) * | 2013-06-04 | 2013-11-13 | 北京听风庐文化发展有限公司 | Core-replaceable and partially-filled type double-casing-pipe buckling-restrained brace |
| CN103924702A (en) * | 2014-04-01 | 2014-07-16 | 北京工业大学 | Double-casing energy-dissipation inner-core buckling restrained brace member with double yield points |
| CN103938748A (en) * | 2014-04-01 | 2014-07-23 | 北京工业大学 | Linear energy-consumption inner core buckling-restrained supporting component with double yield points |
| CN103938749A (en) * | 2014-04-01 | 2014-07-23 | 北京工业大学 | Cross energy-consumption inner core buckling-restrained supporting component with double yield points |
| CN204609031U (en) * | 2015-01-30 | 2015-09-02 | 中冶天工上海十三冶建设有限公司 | The anti-buckling bracing members of additional damping can be provided |
Non-Patent Citations (1)
| Title |
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| 任大海: "《结构专业施工图审查细节详解》", 31 January 2014, 江苏科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715067A (en) * | 2016-02-03 | 2016-06-29 | 北京堡瑞思减震科技有限公司 | H-shaped steel-support welding reinforcing device and installing method thereof |
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Application publication date: 20150506 |
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| RJ01 | Rejection of invention patent application after publication |