CN103195187A - Angle steel assembly type steel structure prestressed buckling-restrained brace - Google Patents
Angle steel assembly type steel structure prestressed buckling-restrained brace Download PDFInfo
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- CN103195187A CN103195187A CN2013101256913A CN201310125691A CN103195187A CN 103195187 A CN103195187 A CN 103195187A CN 2013101256913 A CN2013101256913 A CN 2013101256913A CN 201310125691 A CN201310125691 A CN 201310125691A CN 103195187 A CN103195187 A CN 103195187A
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Abstract
The invention belongs to the technical field of building construction, and provides an angle steel assembly type steel structure prestressed buckling-restrained brace which comprises an internal energy dissipation inner core (2), external angle steel restraining components (3) and prestressed cables (4), a middle gap is reserved between the external angle steel restraining components (3) along the length direction, the internal energy dissipation inner core (2) is inserted into the middle gap of the external angle steel restraining components (3), transverse stiffening ribs (7) are arranged on two sides of each external angle steel restraining component (3) along the length direction, and the prestressed cables (4) are symmetrically disposed on two sides of the internal energy dissipation inner core (2) and pass through the transverse stiffening ribs (7). In order to make the internal energy dissipation inner core to perform axial deformation and energy dissipation, length of the internal energy dissipation inner core (2) is larger than that of each external angle steel restraining component (3), and two ends of the internal energy dissipation inner core (2) extend out of the external angle steel restraining components (3). Under the action of earthquakes, the angle steel assembly type steel structure prestressed buckling-restrained brace dissipates energy sufficiently to enable structural inter-story displacement to be a minimum, and specification requirements are met.
Description
Technical field
The present invention relates to a kind of novel braced structures form, particularly the anti-flexing of a kind of angle steel 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 angle steel 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 angle steel assembling type steel structure prestressing force supports and comprises inner energy consumption inner core, peripheral angle steel confining part, prestressed cable three parts.It is characterized in that: described inner energy consumption inner core is the yi word pattern single steel plate.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.The energy consumption inner core end connects two vertical junction plates with it side by side: upper junction plate, lower connecting plate.Upper junction plate has bolt hole, is linked together by high-strength bolt and framework.The size cavity identical with the energy consumption inner core sectional dimension arranged in the lower connecting plate plate face.Energy consumption inner core is passed lower connecting plate, hold out against upper junction plate, the three welds together.Upper and lower two junction plates are welded together by the double lower connecting plate stiffening rib of going up.Last lower connecting plate stiffening rib is all vertical with two plates.The energy consumption inner core two ends are directly constructed identical.
Described peripheral angle steel confining part is four angle steel, and limb welds together the T font that is being down back to it in twos earlier.The edge of a wing with two T fonts links together with bolt again.Or four angle steel line up cross, connect with bolt between the limb back of the body facing each other.Each bolt is with sleeve pipe, and casing length is identical with energy consumption inner core thickness.Sleeve is positioned between the bolted two limbs back of the body.All be connected with transverse stiffener between two limbs of each angle steel, the transverse stiffener spacing has to calculate to be determined.
Prestressed cable passes transverse stiffener, and the two ends tie point that links to each other with two lower connecting plates of inner energy consumption inner core is positioned at two adjacent short stiffener district centers of a lattice.The prestressing force size has to calculate to be determined.
In factory described inner energy consumption inner core, peripheral angle steel confining part, the assembling of prestressed cable three parts are linked together.At the scene the anti-flexing of described angle steel shape 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 angle steel 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 constructional drawing of the present invention
The side view of Fig. 2 member of the present invention
Fig. 3 component inside energy consumption inner core of the present invention figure
The outside angle steel confining part of Fig. 4 the present invention figure
The prestressed cable figure of Fig. 5 member of the present invention
Wherein, the anti-flexing of 1-angle steel shape assembling type steel structure prestressing force supports; The inner energy consumption inner core of 2-; The outside angle steel confining part of 3-; The 4-prestressed cable; The 5-upper junction plate; The 6-lower connecting plate; The 7-transverse stiffener; The last lower connecting plate stiffening rib of 8-; The 9-sleeve pipe
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 angle steel shape assembling type steel structure prestressing force supports, and is made of inner energy consumption inner core, peripheral angle steel confining part, prestressed cable three parts.Inner energy consumption inner core is inserted in the intermediate gaps of peripheral angle steel confining part.Prestressed cable is arranged symmetrically in the energy consumption inner core both sides, passes transverse stiffener, and quantity is determined by calculating.For making inner energy consumption inner core axial deformation power consumption, make inner energy consumption inner core 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 energy consumption inner core is the yi word pattern single steel plate.For making energy consumption inner core be easy to enter the plasticity power consumption, weaken the chip board middle part, be circular arc.Energy consumption inner core one end is two vertical junction plates with it: upper junction plate, lower connecting plate, be welded to connect vertical with energy consumption inner core.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 energy consumption inner core other end directly bottom the peripheral frame confining part junction plate weld together.
As shown in Figure 4: described peripheral angle steel confining part is four angle steel, and limb welds together the T font that is being down back to it in twos earlier.The edge of a wing with two T fonts links together with bolt again.Or four angle steel line up cross, connect with bolt between the limb back of the body facing each other.Each bolt is with sleeve pipe, and casing length is identical with energy consumption inner core thickness.Sleeve is positioned between the bolted two limbs back of the body.All be connected with transverse stiffener between two limbs of each angle steel, the transverse stiffener spacing has to calculate to be determined.
As shown in Figure 5: the prestressed cable two ends link to each other with two lower connecting plates of inner energy consumption inner core.The prestressing force size of prestressed cable, quantity are determined by calculating.
Claims (4)
1. the anti-flexing of angle steel assembling type steel structure prestressing force supports, and it is characterized in that: comprise inner energy consumption inner core (2), outside angle steel confining part (3), prestressed cable (4); Outside angle steel confining part (3) alongst is provided with intermediate gaps, and inner energy consumption inner core (2) is inserted in the intermediate gaps of outside angle steel confining part (3); Outside angle steel confining part (3) both sides alongst are provided with transverse stiffener (7), and prestressed cable (4) is arranged symmetrically in inner energy consumption inner core (2) both sides, passes transverse stiffener (7); For making inner energy consumption inner core axial deformation power consumption, inner energy consumption inner core (2) length is greater than outside angle steel confining part (3), and stretch out outside the outside angle steel confining part (3) at inner energy consumption inner core (2) two ends.
2. the anti-flexing of a kind of angle steel assembling type steel structure prestressing force according to claim 1 supports, and it is characterized in that: described inner energy consumption inner core (2) is the yi word pattern single steel plate; For making energy consumption inner core (2) be easy to enter the plasticity power consumption, inner energy consumption inner core (2) middle part weakens, and is circular arc along its length; The vertical junction plate of inner energy consumption inner core (2) length direction: i.e. directly the upper junction plate (5) that is connected with inner energy consumption inner core (2) and the lower connecting plate (6) that is connected with upper junction plate (5), upper junction plate (5) and lower connecting plate (6 with vertical being welded to connect of energy consumption inner core (2); Lower connecting plate (6) is provided with bolt hole, is used for will preventing that with bolt flexing supports and framework links together; Upper junction plate (5) and lower connecting plate (6) are welded together by last lower connecting plate stiffening rib (8).Last lower connecting plate stiffening rib (8) is all vertical with junction plate; Energy consumption inner core (2) two ends structure is identical.
3. the anti-flexing of a kind of angle steel assembling type steel structure prestressing force according to claim 1 supports, and it is characterized in that: described outside angle steel confining part (3) is four angle steel, and limb welds together the T font that is being down back to it in twos earlier.The edge of a wing with two T fonts links together with bolt again; Or four angle steel line up cross, connect with bolt between the limb back of the body facing each other; Each bolt is with sleeve pipe (9), and sleeve pipe (9) length is identical with energy consumption inner core (2) thickness; Sleeve pipe (9) is positioned between the bolted two limbs back of the body; Transverse stiffener (7) all is set between two limbs of each angle steel along its length.
4. the anti-flexing of a kind of angle steel shape assembling type steel structure prestressing force according to claim 1 supports, and it is characterized in that: prestressed cable (4) two ends be connected with inner energy consumption inner core (7) two lower connecting plates (6) continuous.Prestressed cable (4) applies prestressing force.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101256913A CN103195187A (en) | 2013-04-11 | 2013-04-11 | Angle steel assembly type steel structure prestressed buckling-restrained brace |
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| CN2013101256913A CN103195187A (en) | 2013-04-11 | 2013-04-11 | Angle steel assembly type steel structure prestressed buckling-restrained brace |
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| CN103882970A (en) * | 2014-04-11 | 2014-06-25 | 北京工业大学 | Industrialized assembly type multi-storey and high-storey steel-structure tubular double board self-resetting buckling-prevention herringbone bracing system |
| CN103967117A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Self-resetting cross-shaped center supporting system for industrialized assembly type multistory and high-rise steel structures |
| CN103967116A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Self-resetting line-shaped herringbone supporting system for industrialized assembly type multistory and high-rise steel structures |
| CN103967150A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | I-shaped single-board self-restoration-prestress anti-buckling support for fabricated steel structure |
| CN103967149A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Self-resetting line-shaped center supporting system for industrialized assembly type multistory and high-rise steel structures |
| CN103967154A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Cross-shaped angle steel assembling type steel structure self-resetting-prestress buckling-resisting support |
| CN103967157A (en) * | 2014-04-15 | 2014-08-06 | 北京工业大学 | Tubular single plate self-resetting prestressing anti-buckling support for assembled steel structure |
| CN103967109A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Self-resetting line-shaped eccentric supporting system for industrialized assembly type multistory and high-rise steel structures |
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| CN103967118A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Crossed self-restoration herringbone prestress supporting system for fabricated multi-story and high-rise steel structure |
| CN103967123A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Self-resetting cross-shaped eccentric supporting system for industrialized assembly type multistory and high-rise steel structures |
| CN103967155A (en) * | 2014-04-11 | 2014-08-06 | 北京工业大学 | Frame type double-board self-restoration prestress anti-buckling support for fabricated steel structure |
| CN103967111A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Crossed self-restoration prestress eccentric supporting system for fabricated multi-story and high-rise steel structure |
| CN103981967A (en) * | 2014-04-11 | 2014-08-13 | 北京工业大学 | Assembled type steel structure frame single-plate self-resetting buckling-restrained brace |
| CN103981969A (en) * | 2014-04-12 | 2014-08-13 | 北京工业大学 | In-line angle steel prefabricated steel structural self-resetting buckling-restrained brace |
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| CN103981971A (en) * | 2014-04-11 | 2014-08-13 | 北京工业大学 | Self-resetting bending-preventing support of channel-steel assembled steel structure |
| CN103993655A (en) * | 2014-04-11 | 2014-08-20 | 北京工业大学 | Industrialized assembled type multi-level and high-level steel structure tubular double-plate self-resetting prestressed anti-buckling eccentric supporting system |
| CN103993676A (en) * | 2014-04-12 | 2014-08-20 | 北京工业大学 | Cross steel angle assembly type steel structure self-resetting buckling-restrained brace |
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| CN104005473A (en) * | 2014-04-12 | 2014-08-27 | 北京工业大学 | Assembly type multi-storey high-rise steelwork I-shaped self-restoration herringbone prestress support system |
| CN104005487A (en) * | 2014-04-12 | 2014-08-27 | 北京工业大学 | Self-resetting and prestressed buckling-restrained brace of I-shaped angle steel assembled-type steel structure |
| CN104005488A (en) * | 2014-04-12 | 2014-08-27 | 北京工业大学 | Assembly type multi-storey high-rise steelwork I-shaped angle steel self-restoration prestress center support system |
| CN104164919A (en) * | 2014-04-12 | 2014-11-26 | 北京工业大学 | Industrial assembly type multi-layer high-rise steel structure cross-shaped self-resetting lambdoidal supporting system |
| CN105888092A (en) * | 2016-04-13 | 2016-08-24 | 东北电力大学 | T-shaped assembly type buckling-restrained brace member |
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| CN101974949A (en) * | 2010-10-15 | 2011-02-16 | 清华大学 | Buckling-restrained brace member consisting of four bound angle steels |
| CN102808464A (en) * | 2012-07-31 | 2012-12-05 | 东南大学 | Fiber pre-stretched rod type self-centering steel buckling-restrained brace |
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| CN201722811U (en) * | 2009-12-31 | 2011-01-26 | 上海维固工程实业有限公司 | Metal damper |
| CN101974949A (en) * | 2010-10-15 | 2011-02-16 | 清华大学 | Buckling-restrained brace member consisting of four bound angle steels |
| CN102808464A (en) * | 2012-07-31 | 2012-12-05 | 东南大学 | Fiber pre-stretched rod type self-centering steel buckling-restrained brace |
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| CN103882970A (en) * | 2014-04-11 | 2014-06-25 | 北京工业大学 | Industrialized assembly type multi-storey and high-storey steel-structure tubular double board self-resetting buckling-prevention herringbone bracing system |
| CN103993655A (en) * | 2014-04-11 | 2014-08-20 | 北京工业大学 | Industrialized assembled type multi-level and high-level steel structure tubular double-plate self-resetting prestressed anti-buckling eccentric supporting system |
| CN103981971A (en) * | 2014-04-11 | 2014-08-13 | 北京工业大学 | Self-resetting bending-preventing support of channel-steel assembled steel structure |
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| CN103993676A (en) * | 2014-04-12 | 2014-08-20 | 北京工业大学 | Cross steel angle assembly type steel structure self-resetting buckling-restrained brace |
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| CN104005488A (en) * | 2014-04-12 | 2014-08-27 | 北京工业大学 | Assembly type multi-storey high-rise steelwork I-shaped angle steel self-restoration prestress center support system |
| CN103967157A (en) * | 2014-04-15 | 2014-08-06 | 北京工业大学 | Tubular single plate self-resetting prestressing anti-buckling support for assembled steel structure |
| CN105888092A (en) * | 2016-04-13 | 2016-08-24 | 东北电力大学 | T-shaped assembly type buckling-restrained brace member |
| CN105888092B (en) * | 2016-04-13 | 2017-12-05 | 东北电力大学 | T-shaped assembled curvature-prevention support component |
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Application publication date: 20130710 |