CN103195186A - Steel pipe assembling steel structure prestressed buckling preventing support - Google Patents
Steel pipe assembling steel structure prestressed buckling preventing support Download PDFInfo
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- CN103195186A CN103195186A CN2013101255696A CN201310125569A CN103195186A CN 103195186 A CN103195186 A CN 103195186A CN 2013101255696 A CN2013101255696 A CN 2013101255696A CN 201310125569 A CN201310125569 A CN 201310125569A CN 103195186 A CN103195186 A CN 103195186A
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Abstract
The invention belongs to the technical field of building construction and particularly relates to a steel pipe assembling steel structure prestressed buckling preventing support. The steel pipe assembling steel structure prestressed buckling preventing support comprises an inner cross energy consumption chip (2), a peripheral steel pipe restraining component (3) and prestressed cables (4). The peripheral steel pipe restraining component (3) is provided with a central gap along the length direction. The inner cross energy consumption chip (2) is inserted in the central gap. The prestressed cables (4) are symmetrically disposed on two sides of the inner cross energy consumption chip (2). In order to allow the inner cross energy consumption chip to axially deform for energy consumption, the length of the inner cross energy consumption chip (2) is larger than that of the peripheral steel pipe restraining component (3), and the inner cross energy consumption chip (2) extends out of two ends of the peripheral steel pipe restraining component (3). Under seismic actions, the steel pipe assembling steel structure prestressed buckling preventing support can fully consumes energy to allow inter-story displacement of the structure to be smaller, and standard requirements can be satisfied.
Description
Technical field
The present invention relates to a kind of novel braced structures form, particularly the anti-flexing of a kind of steel pipe assembling type steel structure prestressing force of building field application supports.
Background technology
Tradition supports because its rigidity is big, and tensile stress surpasses elastic limit usually and surrenders under severe earthquake action, produces expendable permanent set; The lateral deflection song is then taken place during pressurized easily.Under earthquake acted on repeatedly, its power consumption effect was little, also is difficult to the better protect agent structure and is not damaged.
Curvature-prevention support component is as the lateral resisting energy-dissipating device that is applied in many, the high-level structure, elastoplasticity by steel consumes energy, and produces bigger permanent set in the big shake of experience back. and excessive lateral deformation and permanent set that violent earthquake produces structure are the immediate causes that structural deterioration is collapsed.And the anti-flexing of tradition supports also has problems such as machining accuracy control difficulty, wet trade workload that the concrete peripheral constraint component causes are big.
The existing support is connected with cutting bolt mostly with agent structure, can not give full play to the mechanical property of bolt, and bolt quantity is more, the site operation inconvenience, and infrastructure cost is higher.
Recent years, the research that Chinese scholars supports the anti-flexing of assembling type steel structure prestressing force does not also seldom really realize quick, the integrated production of industrialization that the anti-flexing of steel work prestressing force supports.
Summary of the invention
The objective of the invention is to overcome existing above-mentioned defective, provide the anti-flexing of a kind of novel steel tube assembling type steel structure prestressing force to support, this invention can the realization body steel work and supporting member fast, rationally install.And under little shake, have very strong bearing capacity, by improving its initial tension bearing capacity, reduce even eliminate its permanent set under big shake, have very strong energy dissipation capacity.
In order to achieve the above object, the present invention adopts following technical scheme:
The anti-flexing of steel pipe assembling type steel structure prestressing force supports and comprises internal cruciform energy consumption inner core, peripheral steel tube confinement member, prestressed cable three parts.
It is characterized in that: described internal cruciform energy consumption inner core is two vertical cross strip steel plates.For making energy consumption inner core be easy to enter the plasticity power consumption, weaken the energy consumption inner core plates middle part, be circular arc.Cross energy consumption inner core one end is connected with two vertical square connecting plates with it: upper junction plate, lower connecting plate.The alignment of three's kernel of section welds together.Upper junction plate has bolt hole, is linked together by high-strength bolt and framework; There is the cross cavity lower connecting plate plate face center, and empty area size is identical with the cross energy consumption inner core.Energy consumption inner core other end structure holds full form together therewith.
Described peripheral steel tube confinement member is square steel pipe (or round steel pipe), and bottom and lower connecting plate weld together.Steel duct four fillet welding have four rectangle steel dividing plates, leave the cross cavity in the middle of four dividing plates, and the cavity size is identical with cross energy consumption inner core cross section.Clapboard spacing is determined by calculating.
The prestressed cable two ends link to each other with the two ends lower connecting plate of internal cruciform energy consumption inner core, link to each other.Prestressing force size, prestressed cable quantity have to calculate to be determined.
In factory described internal cruciform energy consumption inner core, peripheral steel tube confinement member, the assembling of prestressed cable three parts are linked together.At the scene the anti-flexing of described steel pipe assembling type steel structure prestressing force is supported and be connected with framework with bolt.When horizontal force action during in structure, the horizontal force component that the anti-flexing of described steel pipe assembling type steel structure prestressing force supports reduce in addition negative function in the horizontal force of structure, making the relative storey displacement of structure is smaller value, satisfies the requirement of standard.
Beneficial effect
The present invention adopts the construction stage can realize quick assembled type and the effectively anti-flexing support of a kind of steel pipe assembling type steel structure prestressing force of the horizontal sidesway of opposing.This supporting form not only can be realized the industrialization of steel structure member processing effectively and can greatly improve speed of application and reduce steel using amount significantly.
The anti-flexing of this steel pipe assembling type steel structure prestressing force supports and is connected with tension bolt with agent structure, can give full play to the mechanical property of bolt, reduces infrastructure cost.
Prestressing technique is introduced in the steel work support, and this prestressing force curvature-prevention support component has very big anti-side rigidity under little shake effect; Under middle shake or big shake effect; integral body or the cripling of supporting member do not appear in this prestressing force curvature-prevention support component to be destroyed drawing, all can realize when pressing total cross-section fully to surrender; and reduce or eliminate the power consumption chip permanent set; original power consumption mode by agent structure beam-ends plastic hinge is only changed into concentrate power consumption at anti-flexing support component, thereby protected agent structure preferably.
This prestressing force curvature-prevention support component namely has very strong initial stiffness good power consumption effect is arranged again, reduces the member section size by anti-side own, power consumption, reduces infrastructure cost.
Description of drawings
Fig. 1 member constructional drawing of the present invention
Fig. 2 member plan view of the present invention
Fig. 3 component inside cross of the present invention energy consumption inner core figure
Fig. 4 external frame confining part of the present invention figure
The prestressed cable figure of Fig. 5 member of the present invention
Wherein, the anti-flexing of 1-steel pipe assembling type steel structure prestressing force supports; 2-internal cruciform energy consumption inner core; The outside steel pipe confining part of 3-; The 4-prestressed cable; The 5-upper junction plate; The 6-lower connecting plate; The 7-dividing plate
Specific implementation
Specify the implementation of described structural system below in conjunction with accompanying drawing.
Shown in Fig. 1-2, the present invention is that the anti-flexing of a kind of steel pipe assembling type steel structure prestressing force supports, and is made of internal cruciform energy consumption inner core, peripheral steel tube confinement member, prestressed cable three parts.The internal cruciform energy consumption inner core is inserted in the peripheral steel tube confinement member.Prestressed cable is arranged symmetrically in the energy consumption inner core both sides, and quantity is determined by calculating.For making internal cruciform energy consumption inner core distortion power consumption, make the internal cruciform energy consumption inner core than the long distance B of peripheral steel tube confinement member, the D value has to calculate to be determined.Described peripheral steel tube confinement member bottom welds together with lower connecting plate.
As shown in Figure 3: described internal cruciform energy consumption inner core is two vertical cross strip steel plates.The breadth of section of cross energy consumption inner core is with to enclose steel tube confinement member internal diameter the same big.For making energy consumption inner core be easy to enter the plasticity power consumption, weaken the energy consumption inner core plates middle part, be circular arc.Cross energy consumption inner core end is connected with two vertical square connecting plates with it side by side: upper junction plate, lower connecting plate.Distance between two plates is determined by calculating.Upper junction plate has bolt hole, is linked together by high-strength bolt and framework; There is the cross cavity lower connecting plate plate face center, and empty area size is identical with the cross energy consumption inner core.The cross energy consumption inner core is passed lower connecting plate, holds out against with upper junction plate, and the alignment of three's kernel of section welds together.Cross energy consumption inner core two ends structure full form together.
As shown in Figure 4: described peripheral steel tube confinement member is square steel pipe (or round steel pipe), and bottom and lower connecting plate weld together.Steel duct four fillet welding have four rectangle steel dividing plates, leave the cross cavity in the middle of four dividing plates, and the cavity size is identical with cross energy consumption inner core cross section.Clapboard spacing is determined by calculating.
As shown in Figure 5: the prestressed cable two ends link to each other with the two ends lower connecting plate of internal cruciform energy consumption inner core.The prestress value of prestressed cable, quantity is determined by calculating.
Claims (4)
1. the one kind tubular anti-flexing of assembling type steel structure prestressing force supports, and comprises internal cruciform energy consumption inner core (2), peripheral steel tube confinement member (3), prestressed cable (4); Peripheral steel tube confinement member (3) alongst is provided with intermediate gaps; The sectional dimension of cross energy consumption inner core (2) is identical with the sectional dimension of peripheral steel tube confinement member (3) intermediate gaps, and internal cruciform energy consumption inner core (2) is inserted in the intermediate gaps of peripheral steel tube confinement member (3); Prestressed cable (4) is arranged symmetrically in internal cruciform energy consumption inner core (2) both sides; For making internal cruciform energy consumption inner core (2) axial deformation power consumption, the length of internal cruciform energy consumption inner core (2) is greater than the length of the peripheral steel tube confinement member of length (3); Stretch out outside the peripheral steel tube confinement member (3) at the two ends of internal cruciform energy consumption inner core (2).
2. the anti-flexing of a kind of tubular assembling type steel structure prestressing force according to claim 1 supports, and it is characterized in that: described internal cruciform energy consumption inner core (2) is two vertical cross strip steel plates; The sectional dimension of cross energy consumption inner core (2) is the same big with peripheral steel tube confinement member (3) intermediate gaps; Cross energy consumption inner core (2) middle part weakens, and is circular arc along its length; Cross energy consumption inner core (2) end, two ends be connected with side by side two with the vertical square connecting plate of cross energy consumption inner core (2) length direction: i.e. the lower connecting plate (6) that directly is connected with cross energy consumption inner core (2), the upper junction plate (5) that is connected with lower connecting plate (6); Upper junction plate (5) has bolt hole, is used for will preventing that with high-strength bolt the flexing support is connected with framework; There is the cross cavity lower connecting plate (6) plate face center, and empty area size is identical with cross energy consumption inner core (2) sectional dimension; Cross energy consumption inner core (2) is passed lower connecting plate (6), holds out against with upper junction plate (5), and cross energy consumption inner core (2), upper junction plate (5), the alignment of lower connecting plate (6) kernel of section weld together; Cross energy consumption inner core (2) two ends structure full form together.
3. the anti-flexing of a kind of tubular assembling type steel structure prestressing force according to claim 1 supports, and it is characterized in that: described peripheral steel tube confinement member (3) is square steel pipe or round steel pipe, and bottom and lower connecting plate (5) weld together; Steel duct four fillet welding have the dividing plate (7) of four rectangle steels, leave the cross cavity in the middle of four dividing plates (7), and the cavity size is identical with cross energy consumption inner core (2) cross section.
4. the anti-flexing of a kind of tubular assembling type steel structure prestressing force according to claim 1 supports, and it is characterized in that: prestressed cable (4) two ends link to each other with the lower connecting plate (6) at the two ends of internal cruciform energy consumption inner core (2); Prestressed cable (4) applies prestressing force.
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CN104652645A (en) * | 2015-02-15 | 2015-05-27 | 海南大学 | Energy consumption enhancement assembly-type prefabricated shear wall |
CN104947827A (en) * | 2015-06-25 | 2015-09-30 | 河北华研卓筑加固工程有限公司 | Viscoelasticity-buckling-preventing energy dissipating brace |
CN105040849A (en) * | 2015-07-20 | 2015-11-11 | 清华大学 | Prestressed concrete-filled steel tube buckling-restrained supporting member |
CN105507445A (en) * | 2016-01-15 | 2016-04-20 | 东南大学 | Outer casing pipe constraint folding steel plate energy consumption support |
CN105507445B (en) * | 2016-01-15 | 2018-06-19 | 东南大学 | Outer tube constraint folds steel plate energy dissipation brace |
CN110056240A (en) * | 2019-04-18 | 2019-07-26 | 苏州科技大学 | A kind of anti-buckling bracing members of ductility assembled |
CN111042324A (en) * | 2019-12-27 | 2020-04-21 | 东北林业大学 | Assembled buckling restrained brace of removable inner core |
CN111042324B (en) * | 2019-12-27 | 2021-03-26 | 东北林业大学 | Assembled buckling restrained brace of removable inner core |
CN113152711A (en) * | 2021-03-17 | 2021-07-23 | 河北工业大学 | Buckling restrained brace |
CN114351887A (en) * | 2022-01-21 | 2022-04-15 | 长春工程学院 | Self-reset buckling-restrained brace device with replaceable energy consumption section |
CN114482321A (en) * | 2022-03-30 | 2022-05-13 | 中建三局第一建设工程有限责任公司 | Support device and lateral force resisting component |
CN114482321B (en) * | 2022-03-30 | 2023-08-01 | 中建三局第一建设工程有限责任公司 | Support device and lateral force resisting member |
CN114775825A (en) * | 2022-05-20 | 2022-07-22 | 烟台大学 | Connecting rod type deformation amplification buckling-restrained brace |
CN114775825B (en) * | 2022-05-20 | 2023-11-21 | 烟台大学 | Connecting rod type deformation amplification buckling restrained brace |
CN114991559A (en) * | 2022-06-29 | 2022-09-02 | 东北林业大学 | Displacement amplification type self-resetting buckling-restrained brace and assembling method |
CN115234034A (en) * | 2022-08-02 | 2022-10-25 | 东华理工大学 | Stainless steel multistage energy consumption buckling restrained brace |
CN115234034B (en) * | 2022-08-02 | 2023-05-19 | 东华理工大学 | Stainless steel multistage energy dissipation buckling restrained brace |
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Application publication date: 20130710 |