CN103233525A - Channel steel assembling type steel structure prestress anti-bending support - Google Patents
Channel steel assembling type steel structure prestress anti-bending support Download PDFInfo
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Abstract
The invention provides a channel steel assembling type steel structure prestress anti-bending support and belongs to the technical field of building construction. The channel steel assembling type steel structure prestress anti-bending support comprises an internal energy consumption chip (2), a peripheral frame constraint member (3) and prestressed cables (4). The internal energy consumption chip (2) is inserted into a middle gap of the peripheral frame constraint member (3). Horizontal stiffening ribs (7) are arranged on two sides of the internal energy consumption chip (2) along the length direction, the prestressed cables (4) are symmetrically arranged on two sides of the internal energy consumption chip (2) and penetrate through the horizontal stiffening ribs (7). The internal energy consumption chip (2) axially deforms and consumes energy, and the length of the internal energy consumption chip (2) is larger than that of the peripheral frame constraint member (3). Two ends of the internal energy consumption chip (2) extend out of the peripheral frame constraint member (3). When horizontal force is acted on a structure, horizontal force component of the I-shaped assembling type steel structure prestress anti-bending support is decreased and even offsets horizontal force acted on the structure, so that an inter-story drift value of the structure is small, and the requirements of specifications are satisfied.
Description
Technical field
The present invention relates to a kind of novel braced structures form, particularly the anti-flexing of a kind of channel-section 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 the steel assembled steel work prestressing force of a kind of novel cell 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 channel-section steel 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 the power consumption chip be easy to enter the plasticity power consumption, weaken the chip board middle part, be circular arc.Power consumption chip 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 bolt and framework.The size cavity identical with power consumption chip sectional dimension arranged in the lower connecting plate plate face.The chip that will consume energy passes lower connecting plate, holds out against upper junction plate, and the three welds together.Upper and lower two junction plates are welded together by last lower connecting plate stiffening rib.Last lower connecting plate stiffening rib is all vertical with two plates.Power consumption chip two ends are directly constructed identical.Last lower connecting plate stiffening rib quantity, spacing is determined by calculating.
Described peripheral frame confining part is that cross section is I shape, two frange plates up and down, and middle two webs are channel-section steel.The web channel-section steel leaves the width of a power consumption chip back to placement between two channel-section steel webs.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.Transverse stiffener and the welding of web channel-section steel.Edge of a wing channel-section steel is connected with the edge of a wing welding of web channel-section steel or with bolt.
Prestressed cable passes transverse stiffener, and two ends link to each other with the lower connecting plate at the two ends of inside power consumption chip.Prestressing force size, prestressed cable quantity have 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 channel-section steel 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 channel-section 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 lateral view of the present invention
Fig. 2 member plan view of the present invention
Fig. 3 component inside power consumption of the present invention chip figure
Fig. 4 external frame confining part of the present invention figure
Wherein, the anti-flexing of 1-channel steel shape assembling type steel structure prestressing force supports; The inner power consumption of 2-chip; 3-external frame confining part; The 4-prestressed cable; The 5-upper junction plate; The 6-lower connecting plate; The 7-transverse stiffener; 8-is as the channel-section steel of middle pectoral plate; 9-is as the channel-section steel on the upper and lower edge of a wing; The last lower connecting plate stiffening rib of 10-
Specific implementation
Specify the implementation of described structural system below in conjunction with accompanying drawing.
As shown in Figure 1, the present invention is that the anti-flexing of a kind of channel-section steel 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 determined by calculating.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 2: 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 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 power consumption chip sectional dimension arranged in the lower connecting plate plate face.The chip that will consume energy passes lower connecting plate, holds out against upper junction plate, and 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.Power consumption chip two ends are directly constructed identical.
As shown in Figure 3: described peripheral constraint framework cross section is I shape, is that four blocks of channel-section steels are with the bolt splicing or be welded.As the channel-section steel on the upper and lower edge of a wing, its web punches at the relative position that contacts with the edge of a wing as the channel-section steel of middle pectoral plate, links together with bolt, or in the relative position welding that connects, forms peripheral constraint framework.Leave the width of a power consumption chip between two webs of peripheral constraint framework middle pectoral plate channel-section steel, 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 determines that by calculating the web of transverse stiffener and web channel-section steel and frange plate are and are welded to connect.Peripheral frame confining part bottom is weldingly connected with lower connecting plate.Use the lower connecting plate stiffening rib between upper junction plate, lower connecting plate and vertically be welded to connect, last lower connecting plate stiffening rib quantity, spacing is determined by calculating.
As shown in Figure 4: 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 channel-section steel 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); The both sides of inner power consumption chip (2) alongst are furnished with transverse stiffener (7), and prestressed cable (4) is arranged symmetrically in the both sides of inner power consumption chip (2), passes transverse stiffener (7); Inner power consumption chip (2) axial deformation power consumption, the length of inner power consumption chip (2) is greater than peripheral frame confining part (3); The two ends of inner power consumption chip (2) are stretched out and are enclosed frame constraint member (3).
2. the anti-flexing of a kind of channel-section steel assembling type steel structure prestressing force according to claim 1 supports, and it is characterized in that: described inner power consumption chip (2) is the yi word pattern single steel plate; , the middle part of described inner power consumption chip (2) weakens, and is circular arc along its length; Inner power consumption chip (2) one ends be two parallel placements with the perpendicular junction plate of inside power consumption chip (2) length direction: i.e. the power consumption chip upper junction plate (5) of two parallel placements, power consumption chip lower connecting plate (6), along perpendicular being welded to connect of power consumption chip length direction; The power consumption chip upper junction plate (5) that is positioned at outer most edge is provided with bolt hole, and described bolt hole is used for passing bolt will prevent that flexing supports and framework links together; Upper junction plate (5), lower connecting plate (6) are welded together by last lower connecting plate stiffening rib (6); Last lower connecting plate stiffening rib (6) is all vertical with two plates; Inner power consumption chip (2) two ends are directly constructed identical.
3. the anti-flexing of a kind of channel-section steel assembling type steel structure prestressing force according to claim 1 supports, and it is characterized in that: described peripheral frame confining part (3) cross section is I shape, is that four blocks of channel-section steels are with the bolt splicing or be welded; Punch at the relative position that contacts with the edge of a wing as the channel-section steel (8) of middle pectoral plate as channel-section steel (9) web on the upper and lower edge of a wing, link together with bolt, or in the relative position welding that connects, form peripheral constraint framing component (3); Leave the width of an inner power consumption chip (2) between two webs as the channel-section steel (8) of middle pectoral plate in the middle of the peripheral constraint framing component (3), inner power consumption chip (2) is inserted; Peripheral frame confining part (3) is arranged transverse stiffener (7) along total length; Transverse stiffener (7) is welded to connect with being as the web of the channel-section steel (8) of middle pectoral plate and frange plate; Peripheral frame confining part (3) bottom is weldingly connected with lower connecting plate (6); Using lower connecting plate stiffening rib (10) between upper junction plate (5), lower connecting plate (6) vertically is welded to connect.
4. the anti-flexing of a kind of channel-section steel 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) one ends, and the other end links to each other with the outermost transverse stiffener of peripheral frame confining part (3) (7) at inner power consumption chip (2) other end place.
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| CN107217742A (en) * | 2017-06-12 | 2017-09-29 | 河南奥斯派克科技有限公司 | Antinode plate and double-C-shaped steel composite structural member linear extension node |
| CN108060726A (en) * | 2018-02-05 | 2018-05-22 | 沈阳建筑大学 | A kind of double aluminum alloy inner core assembled buckling restrained brace |
| CN109208750A (en) * | 2018-07-22 | 2019-01-15 | 北京工业大学 | A kind of steel frame mechanization assembly type adds support balcony |
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Application publication date: 20130807 |