CN203669131U - Multi-section combination buckling restrained brace - Google Patents
Multi-section combination buckling restrained brace Download PDFInfo
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- CN203669131U CN203669131U CN201320530555.8U CN201320530555U CN203669131U CN 203669131 U CN203669131 U CN 203669131U CN 201320530555 U CN201320530555 U CN 201320530555U CN 203669131 U CN203669131 U CN 203669131U
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- rectangular steel
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- buckling restrained
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Abstract
The utility model provides a multi-section combination buckling restrained brace, and belongs to the technical field of earthquake resistance and disaster prevention of a building structure. The multi-section combination buckling restrained brace is characterized in that the inside and the outside in the radial direction of the brace are of a double rectangular steel tube structure, the peripheral rectangular steel tube is a restraint unit, and the inner rectangular steel tube is a core axial force unit; due to the fact that the outer rectangular steel tube is tightly attached to and restrains the inner core axial force unit, the width-thickness ratio of rectangular steel of the core axial force unit is controlled, and accordingly a buckling restraint function is achieved. The brace is of a multi-section combination mode in the axial direction and is divided into multiple sections, and elastic sections are arranged in the middle, so stable bearing force of the brace is improved; energy consumption sections are arranged at the two ends of the brace, and energy consumption capacity is guaranteed; after the elastic sections and the energy consumption sections are manufactured respectively, onsite welding and splicing are carried out. The brace is suitable for buckling restrained braces of ultra-large tons and lengths, the brace is lighter than a steel tube concrete buckling restrained brace, good in economical performance and relatively simple in manufacture process, solves the installation construction difficulty of a giant brace and has a good popularization and application prospect.
Description
Technical field
The utility model relates to building structure aseismatic prevention technique field, belong to structural damping Passive Control category, be specifically related to a kind of buckling restrained brace of multistage composite assembly, it can be used for resisting in building structure horizontal earthquake action, improve structural seismic performance, meet the demand of super-high building structure to super-tonnage and length buckling restrained brace.
Background technology
China's super highrise building continue to bring out the development level that has embodied economic society, but China is in earthquake-prone region, and earthquake disaster all can occur every year, it has brought grave danger to security of the lives and property of people.Conventionally super highrise building is undertaken social function and impact are very great again, therefore, are necessary to reduce or control the earthquake of this class formation.
From the viewpoint of energy balance, cause the mechanism of structural earthquake destruction to be, inputting seismic energy consumes by the plasticity power consumption of member, and damage has also correspondingly occurred structure simultaneously, if the energy dissipation capacity of structure is not enough to consume inputting seismic energy, the structure destruction that will collapse.
All there is great difficulty in the design of the buckling restrained brace of super-tonnage and length, manufacture, installation.Because huge buckling restrained brace deadweight is very heavy, the hundreds of ton that sometimes weighs, length is very long, sometimes exceedes 50m, the factors such as manufacture and installation, processing and lifting are all difficult to.
Summary of the invention
The utility model object is to overcome the deficiencies in the prior art, and a kind of multi-section combined buckling restrained brace is provided, and it adopts multistage combination, one huge buckling restrained brace is divided into some sections, comprise resiliency supported section, power consumption supporting section, after manufacturing respectively, carry out scene splicing; Its by outer rectangular steel sleeve be close to constraint internal control the rectangle steel core of flakiness ratio realize buckling-restrained function; The Medium And Low Strength Steels of power consumption section adopts the mode of double inclined plane docking full penetration weldering to be connected with high strength steel, has guaranteed bonding strength; In the middle of support elastic section is arranged on, improve the stability bearing capacity supporting; Support energy consumption section is arranged on two ends and has ensured its energy dissipation capacity.
The technical scheme that the utility model provides is:
A kind of multisection type combination buckling restrained brace, it is characterized in that, it radially, is double square steel pipe structure, peripheral rectangular steel pipe is constraint element, inner rectangular steel pipe is core mandrel power unit, be close to constraint inner core axle power unit by outer rectangular steel sleeve, the flakiness ratio of control core axle power unit rectangle steel, thus realize buckling-restrained function; Be axially to adopt multistage combination, be divided into some sections, adopt stretch section to be arranged on middle to have improved the stability bearing capacity supporting, power consumption section is arranged on two ends and has ensured its energy dissipation capacity, after manufacturing respectively, carries out Site Welding splicing; Concrete structure is characterized by:
It is identical with stretch section support (2) cross section that power consumption section supports (1), is double square cross section; Power consumption section supports between resiliency supported and adopts butt weld 7 that inner box-type section is connected by force;
Power consumption section (1) comprises Medium And Low Strength Steels section (4) and high strength steel section, adopts the mode of double inclined plane butt weld (8) full penetration weldering to connect between Medium And Low Strength Steels section and high strength steel section, has guaranteed bonding strength;
Inner box rectangular steel pipe positions by some dividing plates (6) as core inside, reduces welding deformation; Power consumption section supports after the inside box rectangular steel pipe core docking of (1) and resiliency supported composition, strengthens, thereby outer sleeve is also connected to become to an entirety by mending plate (5) after outer sleeve in outside; Supporting outermost end points position in power consumption section strengthens by box steel hoop (3); Between inside and outside box-type section, adopt isolated material (9) to depart from.
The utility model multisection type combination buckling restrained brace, its operating principle and force-mechanism, by restraining tube unit constraint axially loaded steel member, ensure that overall unstable failure and local buckling failure do not occur in the time of pressurized for it, axle power member will show the good mechanical property of tension and compression symmetry in earthquake so, and surrenders a large amount of dissipation inputting seismic energies by this tension and compression.Before power consumption core surrender of the present utility model, can be structure larger anti-side rigidity and supporting capacity is provided, it acts on same conventional steel brace, but because overall unstable failure can not occur the utility model, material use efficiency is higher; A large amount of inputting seismic energies that can dissipate after the surrender of the utility model power consumption core, for structure provides additional damping, are a kind of metal dampers of function admirable; The utility model adopts the construction measure of double square steel sleeve, by the mode of restriction core section flakiness ratio, realizes the function of about beam core flexing, does not adopt inner packing material, has greatly reduced the deadweight of huge support.The utility model is applicable to super-tonnage and length buckling restrained brace, conducts oneself with dignity light compared with steel tube concrete soil type buckling restrained brace, and good economy performance, manufacturing process is relatively simple, has solved again a huge support installation difficult problem, has good popularizing application prospect.
Brief description of the drawings
Fig. 1 is the each member assembling of the utility model diagrammatic elevational view.
Fig. 2 is the utility model top view (1-1).
Fig. 3 is the utility model cross-sectional view (2-2).
Fig. 4 is the utility model cross-sectional view (3-3).
Fig. 5 is each parts assembling schematic diagram of the utility model.
Fig. 6 is the arrangement schematic diagram of the utility model in building structure.
Description of symbols: mend inside and outside plate, (6) diaphragm, (7) welding seam, (8) diclinic butt weld, (9) node, (12) Vierendeel girder, (13) multisection type combined huge size buckling restrained brace, (14) frame column, (15) bean column node on the inner box rectangular steel pipe in isolated material, (10) between Huge Steel Open case, (11) beam after supports of (1) power consumption section, (2) resiliency supported, (3) box cuff, (4) power consumption Medium And Low Strength Steels section, (5) outer sleeve.
Detailed description of the invention
Referring to figs. 1 through Fig. 6, the outward appearance of known the utility model device and structure requirement.
The utility model buckling restrained brace is a kind of antidetonation new technology; it is arranged on original structure; can be used as additional dissipative member; enter plastic state prior to main structure body; dissipation inputting seismic energy; thereby protect agent structure, can be described as structural seismic " fuse ", application has been installed as shown in Figure 6.
The utility model is implemented according to the following steps:
(1) determine installation site and the quantity of this device, it is arranged in to the weak location of structural seismic as far as possible.
(2) according to structural analysis design, determine that the surrender bearing capacity of this device, rigidity are connected the parameters such as power with node.
(3), according to design parameters, carry out design and the processing of the utility model device in conjunction with the concrete construction measure of this device.
(4), according to bearing length and weight, in conjunction with the Lifting Capacity of site operation, huge support is divided into some sections.
(5) process respectively power consumption supporting section 1 and resiliency supported section 2.
(6) the internal core Low Yield Point Steel of power consumption supporting section 1 is connected by double inclined plane butt weld 8 with high-strength steel.
(7) position by inner diaphragm 6, then group is found into a box kernel axle power unit.
(8) at the peripheral parcel of kernel axle power box-type section isolated material 9.
(9) external constraint unit box-type section is enclosed within to kernel box-type section outside.
(10) the constraint cuff 3 of end is welded in to power consumption section and supports 1 near position of joints.
(11) first consumed energy in bottom supporting section and main structure body is weldingly connected.
(12) adopt interim moulding bed by the bottom supporting and location that consumes energy.
(13) the stretch section support 2 at middle part being supported to 1 kernel with the power consumption section of bottom is connected by butt weld 7.
(14) stiffening plate after outer sleeve 5 is welded in to the splicing position of the power consumption supporting section 1 of resiliency supported section 2 and bottom, makes outside box sleeve shaped in aggregates.
(15) top and the agent structure that top power consumption section are supported are welded to connect.
(16) upper support bottom is connected by butt weld with the top of middle part resiliency supported.
(17) by welding with reinforcement plate after outer sleeve in the splicing position of resiliency supported section and top power consumption supporting section, make outside box sleeve shaped in aggregates.
The utility model is according to basic mechanical principle, adopt double square steel pipe construction measure, prevent that by the mode of restriction core mandrel power unit flakiness ratio it from cripling occurring and destroy, be close to inner shaft power unit by restraining tube unit and prevent core generation complete buckling destruction, do not adopt inner packing material, greatly reduced the deadweight of huge support; Adopt first segmental machining, the mode that rear Site Welding is assembled, has reduced the weight of lifting elements, has solved a construction hoisting difficult problem; Adopt stretch section to be arranged on middle mode and improved the stability bearing capacity supporting, the mode that power consumption section is arranged on two ends has ensured its energy dissipation capacity.
Claims (1)
1. a multisection type combination buckling restrained brace, it is characterized in that, it radially, is double square steel pipe structure, peripheral rectangular steel pipe is constraint element, inner rectangular steel pipe is core mandrel power unit, be close to constraint inner core axle power unit by outer rectangular steel sleeve, the flakiness ratio of control core axle power unit rectangle steel, thus realize buckling-restrained function; Be axially to adopt multistage combination, be divided into some sections, adopt stretch section to be arranged on middle to have improved the stability bearing capacity supporting, power consumption section is arranged on two ends and has ensured its energy dissipation capacity, after manufacturing respectively, carries out Site Welding splicing; Concrete structure is characterized by:
It is identical with stretch section support (2) cross section that power consumption section supports (1), is double square cross section; Power consumption section supports between resiliency supported and adopts butt weld 7 that inner box-type section is connected by force;
Power consumption section (1) comprises Medium And Low Strength Steels section (4) and high strength steel section, adopts the mode of double inclined plane butt weld (8) full penetration weldering to connect between Medium And Low Strength Steels section and high strength steel section, has guaranteed bonding strength;
Inner box rectangular steel pipe positions by some dividing plates (6) as core inside, reduces welding deformation; Power consumption section supports after the inside box rectangular steel pipe core docking of (1) and resiliency supported composition, strengthens, thereby outer sleeve is also connected to become to an entirety by mending plate (5) after outer sleeve in outside; Supporting outermost end points position in power consumption section strengthens by box steel hoop (3); Between inside and outside box-type section, adopt isolated material (9) to depart from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320530555.8U CN203669131U (en) | 2013-08-29 | 2013-08-29 | Multi-section combination buckling restrained brace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320530555.8U CN203669131U (en) | 2013-08-29 | 2013-08-29 | Multi-section combination buckling restrained brace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203669131U true CN203669131U (en) | 2014-06-25 |
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ID=50965447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320530555.8U Withdrawn - After Issue CN203669131U (en) | 2013-08-29 | 2013-08-29 | Multi-section combination buckling restrained brace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203669131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485435A (en) * | 2013-08-29 | 2014-01-01 | 同济大学 | Multi-section combined giant buckling constraint support |
-
2013
- 2013-08-29 CN CN201320530555.8U patent/CN203669131U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485435A (en) * | 2013-08-29 | 2014-01-01 | 同济大学 | Multi-section combined giant buckling constraint support |
| CN103485435B (en) * | 2013-08-29 | 2015-09-16 | 同济大学 | The constraint of multisection type combined buckling supports |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200092 Shanghai City, Yangpu District Siping Road No. 1239 Patentee after: Tongji University Patentee after: SHANGHAI LANKE BUILDING DAMPING TECHNOLOGY CO., LTD. Address before: 200092 Shanghai City, Yangpu District Siping Road No. 1239 Patentee before: Tongji University Patentee before: Shanghai Landtek building damping Science and Technology Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140625 Effective date of abandoning: 20150916 |
|
| RGAV | Abandon patent right to avoid regrant |