CN103195185A - I-shaped single-plate assembling steel structure prestressed buckling preventing support - Google Patents
I-shaped single-plate assembling steel structure prestressed buckling preventing support Download PDFInfo
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- CN103195185A CN103195185A CN2013101255662A CN201310125566A CN103195185A CN 103195185 A CN103195185 A CN 103195185A CN 2013101255662 A CN2013101255662 A CN 2013101255662A CN 201310125566 A CN201310125566 A CN 201310125566A CN 103195185 A CN103195185 A CN 103195185A
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Abstract
The invention belongs to the technical field of building construction and particularly relates to an I-shaped single-plate assembling steel structure prestressed buckling preventing support. The I-shaped single-plate assembling steel structure prestressed buckling preventing support comprises an inner energy consumption chip (2), a peripheral frame restraining component (3) and prestressed cables (4). The inner energy consumption chip (2) is inserted in a central gap of the peripheral frame restraining component (3). The peripheral frame restraining component (3) is provided with transverse stiffening ribs (7) on two sides and along the length direction. The prestressed cables (4) are symmetrically disposed on two sides of the inner energy consumption chip (2) and penetrate the transverse stiffening ribs (7). The inner energy consumption chip (2) deforms axially for energy consumption. The length of the inner energy consumption chip (2) is larger than that of the peripheral frame restraining component (3). The inner energy consumption chip (2) extends out of two ends of the peripheral frame restraining component (3). When a horizontal force acts on the structure, a horizontal force component of the I-shaped assembling steel structure prestressed buckling preventing support reduces or neutralize the horizontal force, and accordingly inter-story displacement of the structure is 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 I shape veneer 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 I shape veneer 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 I shape veneer assembling type steel structure prestressing force supports and comprises inner power consumption chip, peripheral frame confining part, prestressed cable three parts.It is characterized in that: described inner power consumption chip is the yi word pattern single steel plate.For making inner power consumption chip be easy to enter the plasticity power consumption, weaken inner power consumption chip board middle part, be circular arc.Inner power consumption chip one end is two vertical junction plates with it: inner power consumption chip upper junction plate, inner power consumption chip lower connecting plate.Topmost a junction plate has bolt hole, is linked together by bolt and framework.Upper and lower two junction plates are linked together by double short stiffener.Short stiffener is all vertical with two plates.The chip other end is consumed energy directly in inside and peripheral frame confining part bottom junction plate welds together.
Described peripheral frame confining part is two frange plates up and down, and the middle double horizontal row welds together to stiffening rib, leaves the width of a power consumption chip between double transverse stiffener.The peripheral frame confining part is arranged transverse stiffener from the upper end along total length.The spacing of transverse stiffener is determined by calculating.Link to each other with short stiffener between peripheral frame confining part bottom junction plate and adjacent transverse stiffener.
Prestressed cable one end links to each other with the lower connecting plate of inside power consumption chip, and the other end links to each other with the transverse stiffener of peripheral frame confining part lower side.The prestressing force size has to calculate to be determined
In factory described inner power consumption chip, peripheral frame confining part, the assembling of prestressed cable three parts are linked together.At the scene the anti-flexing of described I shape veneer assembling type steel structure prestressing force is supported and be connected with framework with high-strength bolt.When horizontal force action during in structure, the horizontal force component that the anti-flexing of described I shape veneer 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 channel-section steel 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 channel-section steel 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 lateral view of the present invention
Fig. 2 member plan view of the present invention
Fig. 3 component inside energy consumption inner core of the present invention 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-I shape veneer assembling type steel structure prestressing force supports; The inner energy consumption inner core of 2-; 3-external frame confining part; The 4-prestressed cable; The inner energy consumption inner core upper junction plate of 5-; The inner energy consumption inner core lower connecting plate of 6-; The 7-transverse stiffener; 8-external frame confining part bottom junction plate; The 9-short stiffener; The 10-frange 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 I shape veneer assembling type steel structure prestressing force supports, and is made of inside power consumption chip, peripheral frame confining part, prestressed cable three parts.Inner power consumption chip inserts in the intermediate gaps of peripheral frame confining part.Prestressed cable is arranged symmetrically in power consumption chip both sides, passes transverse stiffener, and quantity is calculated by outer design loadometer and determined.For making inner power consumption chip axial deformation power consumption, make inner power consumption chip than the long distance B of peripheral frame confining part, the D value has to calculate to be determined.
As shown in Figure 3: described inner power consumption chip is the yi word pattern single steel plate.For making the power consumption chip be easy to enter the plasticity power consumption, weaken the chip board middle part, be circular arc.Power consumption chip one end is two vertical junction plates with it: power consumption chip upper junction plate, power consumption chip lower connecting plate, chip is vertical is welded to connect with power consumption.Topmost a junction plate has bolt hole, is linked together by high-strength bolt and framework.Above and below two junction plates are welded together by short stiffener.Short stiffener is all vertical with two plates.The power consumption chip other end directly bottom the peripheral frame confining part junction plate weld together.
As shown in Figure 4: described peripheral frame confining part is upper and lower two blocks of frange plates, and the centre welds together with double transverse stiffener, leaves the width of a power consumption chip between double transverse stiffener, and inner power consumption chip is inserted.The peripheral frame confining part is arranged transverse stiffener from the upper end along total length.The spacing of transverse stiffener is by calculate determining, transverse stiffener is with frange plate up and down and is welded to connect.Be weldingly connected with short stiffener between peripheral frame confining part bottom junction plate and adjacent transverse stiffener.
As shown in Figure 5: prestressed cable one end links to each other with the lower connecting plate of inside power consumption chip, and the other end links to each other with the transverse stiffener of peripheral frame confining part lower side.The quantity of prestressed cable is determined by calculating.
Claims (4)
1. the anti-flexing of I shape veneer assembling type steel structure prestressing force supports, and comprises inner power consumption chip (2), peripheral frame confining part (3), prestressed cable (4).Inner power consumption chip (2) inserts in the intermediate gaps of peripheral frame confining part (3), peripheral frame confining part (3) both sides alongst are furnished with transverse stiffener (7), prestressed cable (4) is arranged symmetrically in inner power consumption chip (2) both sides, passes transverse stiffener (7).Inner power consumption chip axial deformation power consumption, the length of inner power consumption chip (2) is greater than peripheral frame confining part (3) length.Stretch out outside the peripheral frame confining part (3) at the two ends of inner power consumption chip (2).
2. the anti-flexing of a kind of I shape veneer assembling type steel structure prestressing force according to claim 1 supports, it is characterized in that: described inner power consumption chip (2) is easy to enter the plasticity power consumption for the yi word pattern single steel plate for making the power consumption chip, inner power consumption chip (2) one ends be connected with two with the vertical junction plate of inner power consumption chip (2) length direction: i.e. the inside power consumption chip lower connecting plate (6) that directly is connected with inner power consumption chip (2) and the inside that is connected with inside power consumption chip lower connecting plate (6) the chip upper junction plate (5) that consumes energy, junction plate and inside vertical being welded to connect of chip (2) length direction of consuming energy; Inner power consumption chip upper junction plate (5) has been provided with bolt hole, will prevent that with bolt flexing supports and framework links together; Inner power consumption chip upper junction plate (5) and inner power consumption chip lower connecting plate (6) are welded together by double short stiffener (9).Short stiffener (9) is all vertical with described two junction plates; Chip (2) other end is consumed energy directly in inside and peripheral frame confining part bottom junction plate (8) welds together.
3. the anti-flexing of a kind of I shape veneer assembling type steel structure prestressing force according to claim 1 supports, it is characterized in that: described peripheral frame confining part (3) is upper and lower two blocks of frange plates (10), the centre welds together with double transverse stiffener (7), leave the space of inner power consumption chip (a 2) width between double transverse stiffener (7), inner power consumption chip (2) is inserted; Transverse stiffener (7) is arranged along total length in peripheral frame confining part (3) both sides; Transverse stiffener (7) is with the frange plate of both sides (10) up and down and is welded to connect; Be weldingly connected with short stiffener (9) between peripheral frame confining part bottom junction plate (8) and adjacent transverse stiffener (7).
4. the anti-flexing of a kind of I shape veneer assembling type steel structure prestressing force according to claim 1 supports, it is characterized in that: prestressed cable (4) one ends link to each other (6) with the lower connecting plate of inner power consumption chip (2), and the other end links to each other with the outermost transverse stiffener of the peripheral frame confining part other end (7).The quantity of prestressed cable is determined by calculating.
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| CN103758240A (en) * | 2014-01-03 | 2014-04-30 | 清华大学 | Separate buckling restrained brace using corrugated webs for connection |
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| CN105256911A (en) * | 2015-09-28 | 2016-01-20 | 中国矿业大学 | All-steel double-plate self-reset buckling-restrained brace device and method for producing same |
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Application publication date: 20130710 |