CN1603539A - Buckling and energy consumption preventing steel plate shear wall - Google Patents
Buckling and energy consumption preventing steel plate shear wall Download PDFInfo
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- CN1603539A CN1603539A CN 200410091547 CN200410091547A CN1603539A CN 1603539 A CN1603539 A CN 1603539A CN 200410091547 CN200410091547 CN 200410091547 CN 200410091547 A CN200410091547 A CN 200410091547A CN 1603539 A CN1603539 A CN 1603539A
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- steel plate
- concrete cover
- buckling
- energy consumption
- shear wall
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 121
- 239000010959 steel Substances 0.000 title claims abstract description 121
- 238000005265 energy consumption Methods 0.000 title claims description 20
- 239000004567 concrete Substances 0.000 claims abstract description 51
- 238000005728 strengthening Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract 3
- 238000010276 construction Methods 0.000 abstract 1
- 230000008520 organization Effects 0.000 abstract 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The invention involves a kind of data organization project area of technology to guard against the flexure to consume energy the steel plate shearing force wall. Its characteristic causes to state the shearing force wall to inlay the steel plate and two sides periphery concrete lap by in is composed; In states inlays the steel plate to use the low yield point high ductility steel products or the high strength high ductility steel products; States the periphery concrete lap to use the common concrete slab; States the edge component is composed by the marginal beam and the edge column; In states inlays the steel plate with to state between the concrete lap through to penetrate three blocks the bolts or the pre-stressed bold fastening, in states on the concrete lap to open the ellipse hole in order to the bolt passed through also has the enough slipping space; In states the concrete lap to open the hole site with to bury the trough section to give strengthens. And is strengthening the channel steel the corresponding position to open oval hole. The invention provides guards against the flexure steel plate shearing force wall is the high-rise construction structure or other structures a kind of new anti- lateral force components, it has the earthquake resistance performance well, the ductility is high, consumes energy stagnates winds full and so on the characteristic, is a kind of superior earthquake resistance consumes energy the component.
Description
Technical field
The present invention relates to a kind of novel anti side force, buckling and energy consumption preventing steel plate shear wall, belong to technical field of structural engineering.
Background technology
Steel plate shear force wall begins extensive use as a kind of novel lateral resistant member at western developed countries such as the U.S., Japan and Canada, has begun to use in the high earthquake intensity of China area of providing fortification against earthquakes in recent years.Steel plate shear force wall is compared with reinforced concrete shear wall has better energy dissipation capacity and better ductility, has overcome the concrete shear force wall shortcoming that concrete cracking, ductility reduce significantly under big shake effect, is a kind of superior energy dissipation member; Yet, must adopt less flakiness ratio during the design steel plate shear force wall or powerful stiffening rib is set just can reach better power consumption effect and better ductility, but this has increased material and cost, has reduced its economy with the generation that suppresses the steel plate flexing.
Summary of the invention
The object of the present invention is to provide a kind of bigger lateral resisting effect that has, also can be under big shake effect the effective anti-flexing steel plate shear force wall of energy dissipating.
The buckling and energy consumption preventing steel plate shear wall that the present invention proposes is characterized in that described shear wall is made up of embedded steel plate and both sides peripheral concrete cover plate; Described embedded steel plate adopts high ductility steel of low-yield or the high ductility steel of high strength; Described peripheral concrete cover plate adopts general concrete slab; Described edge member is made up of edge girder and edge posts; Be connected by bolt or the pre-stressed bolt that penetrates three blocks of plates between described embedded steel plate and the described concrete cover, on described concrete cover, open ellipse hole so that bolt passes and enough slipping space are arranged; Strengthen at the pre-buried channel-section steel of described concrete cover position of opening, and open elliptical aperture in the relevant position of strengthening channel-section steel.
In above-mentioned buckling and energy consumption preventing steel plate shear wall, described both sides peripheral concrete cover plate and edge member leave certain clearance, and its value size is got 10-50mm.
At above-mentioned buckling and energy consumption preventing steel plate shear wall, described embedded steel plate be divided into two kinds being connected of edge member, the first all is connected with edge member, it two is only to be connected with crossbeam.
At above-mentioned buckling and energy consumption preventing steel plate shear wall, described embedded steel plate connects with adopting welding or bolt being connected of edge member.
In above-mentioned buckling and energy consumption preventing steel plate shear wall, described anti-flexing steel plate wall is divided into two kinds of the anti-flexing steel plate walls of the anti-flexing steel plate wall of big shake slippage and fully slippage.
In above-mentioned buckling and energy consumption preventing steel plate shear wall, anti-flexing steel plate wall for described big shake slippage, bolt applies certain prestressing force, between concrete cover and embedded steel plate, produce certain thrust, can guarantee that under little shake effect cripling does not take place embedded steel plate, and stressed jointly between concrete cover and the embedded steel plate by contacting friction, provide powerful lateral support effect to structure; Under big shake effect, the internal force difference between described embedded steel plate and the concrete cover surpasses the frictional force between them, slides so produce relatively; Guaranteeing embedded steel plate not outside the generating plane under the situation of flexing, steel plate fully plays the power consumption effect.
In above-mentioned buckling and energy consumption preventing steel plate shear wall, anti-flexing steel plate wall for described complete slippage, bolt does not apply prestressing force, no matter in little shake still under big shake effect, all the time can slippage between concrete cover and the embedded steel plate, concrete cover only provides face to retrain outward to embedded steel plate, and is not stressed in the scope of participants; Embedded steel plate provides rigidity and energy-dissipating property in the face.
The present invention by add the form of concrete cover in both side surface, can effectively prevent the outer flexing of steel plate metope to traditional steel plate shear force wall, improves anti-side rigidity, power consumption and the ductile performance of steel plate wall.This steel plate wall is called for short anti-flexing steel plate wall " buckling and energy consumption preventing steel plate shear wall ".Anti-flexing steel plate wall can provide bigger lateral resisting effect, also can effectively energy dissipating under big shake effect, and this is provided with excellent application status, market for it.Like this, even, also can obtain, also reduced the cost of structure simultaneously greatly than higher energy-dissipating property and ductility for relatively thinner steel plate.
Characteristics such as anti-flexing steel plate shear force wall provided by the invention is a kind of novel lateral resistant member of high-rise building steel structure or other structure, and it has, and anti-seismic performance is good, ductility is high, the power consumption hysteretic loop is full are a kind of superior energy dissipation members.
Description of drawings
Fig. 1 is a buckling and energy consumption preventing steel plate shear wall structural representation of the present invention.
Fig. 2 is a buckling and energy consumption preventing steel plate shear wall of the present invention unit exploded view.
The specific embodiment
The present invention is described in detail below in conjunction with accompanying drawing:
As shown in Figure 1, 2,1-left side edge post, 2-right side edge post, 3-upper end-face edge beam, 4-lower edge beam, the embedded steel plate of 5-, the 6-concrete cover is reserved elliptical aperture on the 7-concrete cover, the connecting bolt of embedded steel plate of 8-and concrete cover, reserving gaps between 9-concrete cover and the framework
Anti-flexing steel plate wall of the present invention is made up of confined concrete cover plate and edge member before and after embedded steel plate and the steel plate; Edge member is made up of left and right edge posts 1,2 and upper and lower edge girder 3,4, and embedded steel plate 5 adopts high ductility steel of low-yield or the high ductility steel of high strength; Front and back concrete cover 6 adopts general concrete slab; Be connected by bolt or the pre-stressed bolt 8 that penetrates three blocks of plates between embedded steel plate 5 and the concrete cover 6, on concrete cover 6, open ellipse hole 7 so that bolt 8 passes and enough slipping space are arranged; Strengthen at the pre-buried general channel-section steel of concrete cover position of opening, and also open elliptical aperture in the relevant position of strengthening channel-section steel.
The kind and the force mechanism of anti-flexing steel plate wall:
The anti-flexing steel plate wall of big shake slippage; Under little shake effect, embedded steel plate unit and peripheral concrete constraint element can not relative slippages at the contact surface place, make the two stressed jointly by apply certain initial prestressing force to bolt.Under big shake effect, embedded steel plate and concrete cover begin slippage, and concrete slab withdraws from stressed in face, after this only provide face outer restriction rigidity.
The anti-flexing steel plate wall of complete slippage; Under little shake and big shake effect, embedded steel plate unit and peripheral concrete constraint element can relative slippages at the contact surface place, and the two is tightened by bolt, but does not apply initial prestressing force.Concrete slab only provides restriction rigidity outside the plane, does not participate in its face stressed;
The structure and the connection request of anti-flexing steel plate wall;
(1) the both sides concrete cover is not connected with edge member, leaves certain clearance, and its value size is got 10-50mm;
(2) steel plate wall be divided into two kinds being connected of edge member, the first all is connected with edge member, it two is only to be connected with crossbeam;
(3) embedded steel plate adopts welding or bolt to be connected with edge member (beam and column), decides on design.
The sectional dimension of anti-flexing steel plate shear force wall is determined:
(1) the ultimate shear-carrying capacity design formulas of steel plate: F
v=0.8a t
sf
v, the transverse width of a=steel plate wall wherein, the height of h=steel plate wall, t
sThe thickness of=steel plate wall;
(2) determine the thickness and the arrangement of reinforcement situation of concrete cover: by the ratio of steel plate wall complete buckling analysis decision peripheral concrete cover plate rigidity and steel plate wall rigidity; When design,, can think that the out-of-plane restriction rigidity of concrete cover meets the demands as long as satisfy this ratio condition.
The design principles of anti-flexing steel plate shear force wall:
(1) geological process is calculated: consider by middle shake, and according to the internal force of framework and wallboard unit computation structure; Under little shake effect, framework, steel plate wall bearing capacity and relative storey displacement angle meet design requirement;
(2) design key of steel plate wall is its thickness of decision, and its principle is to enter surrender and to consume energy by the embedded steel plate of assurance under big shake effect, avoids steel plate wall to cause framing component to destroy too by force in advance; Embedded steel plate will have certain thickness, so that can satisfy element bearing capacity requirement and elastic displacement angle limit value under little shake effect.
Claims (7)
1, buckling and energy consumption preventing steel plate shear wall is characterized in that, described shear wall is made up of embedded steel plate unit and concrete cover unit, both sides, front and back and edge member; Described embedded steel plate adopts high ductility steel of low-yield or the high ductility steel of high strength; Both sides, described front and back concrete cover adopts general concrete slab; Described edge member is made up of edge girder and edge posts; Be connected by bolt or the pre-stressed bolt that penetrates three blocks of plates between described embedded steel plate and the described concrete cover, on described concrete cover, open ellipse hole so that bolt passes and enough slipping space are arranged; Strengthen at the pre-buried channel-section steel of described concrete cover position of opening, and open elliptical aperture in the relevant position of strengthening channel-section steel.
2, buckling and energy consumption preventing steel plate shear wall according to claim 1 is characterized in that, described both sides concrete cover and edge member leave certain clearance, and its value size is got 10-50mm.
3, buckling and energy consumption preventing steel plate shear wall according to claim 1 is characterized in that, described embedded steel plate be divided into two kinds being connected of edge member, the first all is connected with surrounding member, it two is only to be connected with crossbeam.
4, buckling and energy consumption preventing steel plate shear wall according to claim 1 is characterized in that, described embedded steel plate adopts welding or bolt to be connected with edge member.
5, buckling and energy consumption preventing steel plate shear wall according to claim 1 is characterized in that, described anti-flexing steel plate wall is divided into two kinds of the anti-flexing steel plate walls of the anti-flexing steel plate wall of big shake slippage and fully slippage.
6, buckling and energy consumption preventing steel plate shear wall according to claim 1 and 2, it is characterized in that, anti-flexing steel plate wall for described big shake slippage, bolt applies certain pretension, between described concrete cover and embedded steel plate, produce certain thrust, can guarantee that under little shake effect cripling does not take place embedded steel plate, and stressed jointly with steel plate wall by contacting friction, the powerful outer effect of contraction of face is provided; Under big shake effect, the internal force difference between described embedded steel plate and the peripheral concrete cover plate surpasses the frictional force between them, slides so produce relatively; Guaranteeing steel plate not outside the generating plane under the situation of flexing, steel plate fully plays the power consumption effect.
7, buckling and energy consumption preventing steel plate shear wall according to claim 1 and 2 is characterized in that, for the anti-flexing steel plate wall of described complete slippage, bolt does not apply prestressing force; Respectively under little shake and big shake effect, can slippage between concrete cover and the embedded steel plate, concrete cover only provides face to retrain outward to steel plate, and scope of participants is interior not stressed; Embedded steel plate provides rigidity and energy-dissipating property in the face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410091547 CN1246547C (en) | 2004-11-19 | 2004-11-19 | Buckling and energy consumption preventing steel plate shear wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410091547 CN1246547C (en) | 2004-11-19 | 2004-11-19 | Buckling and energy consumption preventing steel plate shear wall |
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| CN1603539A true CN1603539A (en) | 2005-04-06 |
| CN1246547C CN1246547C (en) | 2006-03-22 |
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| CN 200410091547 Expired - Fee Related CN1246547C (en) | 2004-11-19 | 2004-11-19 | Buckling and energy consumption preventing steel plate shear wall |
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| CN100356001C (en) * | 2005-12-28 | 2007-12-19 | 北京工业大学 | Shear wall hidden with vertical soft steel energy consupting band and mfg. method thereof |
| CN100567672C (en) * | 2008-03-06 | 2009-12-09 | 同济大学 | Combined steel plate shearing force wall with large aspect ratio |
| CN101230599B (en) * | 2008-02-28 | 2010-06-02 | 同济大学 | Vertical shear tilt vibration damper steel plate shearing wall |
| CN101046109B (en) * | 2006-03-31 | 2010-08-18 | 同济大学 | New type of frame supported shear wall structure and its making process |
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| CN102776966A (en) * | 2012-07-20 | 2012-11-14 | 华南理工大学 | Modified double-layered steel plate concrete shear wall and construction method thereof |
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Assignee: Hebei Jinhuan Steel Structure Engineering Co.,Ltd. Assignor: Tsinghua University Contract fulfillment period: 2008.12.18 to 2018.12.18 contract change Contract record no.: 2008110000212 Denomination of invention: Buckling and energy consumption preventing steel plate shear wall Granted publication date: 20060322 License type: Exclusive license Record date: 20081222 |
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