CN102182261B - Concrete slab constrained low-yield steel plate dissipative shear wall - Google Patents

Concrete slab constrained low-yield steel plate dissipative shear wall Download PDF

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Publication number
CN102182261B
CN102182261B CN201110079131XA CN201110079131A CN102182261B CN 102182261 B CN102182261 B CN 102182261B CN 201110079131X A CN201110079131X A CN 201110079131XA CN 201110079131 A CN201110079131 A CN 201110079131A CN 102182261 B CN102182261 B CN 102182261B
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steel plate
concrete slab
steel
power consumption
yield point
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CN102182261A (en
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李国强
陆烨
孙飞飞
刘学亮
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Tongji University
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Tongji University
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Abstract

The invention discloses a concrete slab constrained low-yield steel plate dissipative shear wall, which comprises a steel plate wall, wherein two sides of the steel plate wall are provided with a concrete slab along the horizontal direction respectively; the upper side and the lower side of the steel plate wall are connected with frame beam members; the steel plate wall comprises upper and lower first steel plates and a second steel plate for connecting the upper and lower first steel plates; the second steel plate is narrower than the first steel plates along the horizontal direction; and the second steel plate is a low-yield steel plate. The shear wall can provide structural lateral stiffness resistance in normal use and provide dissipation effect in earthquake. Meanwhile, the section of the middle part of the steel plate wall is reduced, and the yield section is transferred from the easily-damaged end area with low ductility to the middle part of the steel plate wall, so that the dissipation performance of the structure is better.

Description

Concrete slab constraint low yield point steel plate power consumption shear wall
Technical field
The invention belongs to technical field of structural engineering, be specifically related to a kind of concrete slab constraint low yield point steel plate power consumption shear wall.
Background technology
Buckling-restrained steel plate shear force wall is a kind of well behaved antidetonation member; But in present practical applications; Usually only consider the contribution of steel plate shear force wall to the anti-side rigidity of structure; Do not consider the power consumption function when middle shake and big shake, and be the rectangular elements of rule mostly, and this core anti-seismic material of steel plate is made up of same material in shape.In addition, provide mostly the concrete slab of constraint is prefabricated plate also, the planeness of processing is had relatively high expectations.
The present invention is directed to the problems referred to above and propose a kind of novel low yield point steel plate power consumption shear wall, the intermediate cross-section of steel plate dwindles, and is processed by the low-yield steel, and amplify the relative intermediate cross-section of steel plate two end sections, and processed by the yield point steel higher than the intermediate cross-section.When little shake, steel plate wall can provide enough anti-side rigidity; When big shake and middle shake; The end amplifier section is because have higher capacity, can guarantee not occur root and destruction such as tear, and guarantees that the low-yield steel that the intermediate cross-section dwindles given play to good low-cycle fatigue and ductile performance; Absorb seismic energy, the power consumption function is provided.Simultaneously, between concrete slab and steel plate, non-cohesive material is arranged, and concrete slab adopts half prefabrication system to process, can guarantee that concrete slab gives full play of the outer buckling-restrained effect of face of steel plate.
Summary of the invention
The technical problem that the present invention will solve provides a kind of concrete slab constraint low yield point steel plate power consumption shear wall, and this shear wall provides structure anti-side rigidity under normal use and little earthquake situations condition, under middle shake and big earthquake situations condition, the power consumption function is provided.
The present invention adopts following technical scheme:
A kind of concrete slab constraint low yield point steel plate power consumption shear wall; Comprise that steel plate wall, steel plate wall both sides on along continuous straight runs respectively establish concrete slab; Steel plate wall is both sides connecting frame beam up and down, and said steel plate wall comprises upper and lower first steel plate, and connects second steel plate of upper and lower first steel plate; The width of said second steel plate on along continuous straight runs is less than first steel plate, and said second steel plate is a low yield point steel plate.
Preferably, the fillet between first, second steel plate is an arc transition.
Further, be provided with the soft glass plate between said steel plate wall and the concrete slab.
Preferably, lay reinforcing bar on the said soft glass plate, reinforcing bar rises through steel cushion block pad and keeps the gap with the soft glass plate, also is provided with channel-section steel on the cushion block, and bolt passes steel plate wall, cushion block and channel-section steel, and steel plate wall, soft glass plate are connected with concrete slab.
Further, first, second steel plate on the said steel plate wall is equipped with bolt penetration hole, and wherein the bolt penetration hole on first steel plate is the slotted hole that along continuous straight runs extends, and the bolt penetration hole on second steel plate is a circular hole.
Preferably, said soft glass thickness of slab 1mm, the clearance distance of reinforcing bar and soft glass plate is 10mm.
Further, put gauze wire cloth on said channel-section steel and the concrete slab.
Further, said Vierendeel girder member comprises back timber, and back timber is divided into symmetrical angle steel, and the steel plate wall top inserts in the symmetrical angle steel, and is connected with back timber.
Further, said Vierendeel girder member also comprises bottom girder, and the steel plate wall bottom is connected with bottom girder.
Preferably, be the butt joint welding between said first, second steel plate, butt weld polishes flat.
The concrete slab constraint low yield point steel plate power consumption shear wall that the present invention relates to; Both sides at steel plate wall retrain with concrete slab; The low-yield steel is used in middle part at steel plate, can when normal the use, provide structure anti-side rigidity, and the power consumption effect is provided when earthquake.Simultaneously, the cross section, middle part of steel plate wall is reduced, from the end regions that low, the easy generation of ductility destroys, move on to the middle part of steel plate wall, make the energy-dissipating property of structure more good to the surrender cross section.The present invention can also guarantee the not outer flexing of generating plane of steel plate, and antidetonation of realizing ideal and energy-dissipating property become the primary structure member in the structure; Simultaneously; Also can replace common wall architectural, not take the building usage space, and concrete slab also can be used as the flameproof protection of steel plate.
Description of drawings
Fig. 1 is the structural representation of the concrete constraint low yield point steel plate power consumption shear wall light plate wall that the present invention relates to.
Fig. 2 is the structural representation of the another kind of embodiment of the concrete constraint low yield point steel plate power consumption shear wall light plate wall that the present invention relates to.
Fig. 3 is the enlarged diagram of A circle among Fig. 2.
Fig. 4 is a bolted structural representation in the concrete constraint low yield point steel plate power consumption shear wall that the present invention relates to.
Fig. 5 is the sketch map of concrete slab arrangement of reinforcement in the concrete constraint low yield point steel plate power consumption shear wall that the present invention relates to.
Fig. 6 is the structural representation of the concrete constraint low yield point steel plate power consumption shear wall that the present invention relates to.
Fig. 7 is the lateral view of Fig. 6.
Wherein:
2. back timber 8. arc transition districts
3. bottom girder 9. (steel plate wall) bottom
4. concrete slab 10. (steel plate wall) top
5. steel plate wall 11,12. angle steel
6. first steel plate, 13. slotted holes
7. second steel plate, 14. circular holes
15. butt weld 27. gauze wire cloths
23. bolt 28. channel-section steels
24,25. soft glass plates, 29. cushion blocks
26. reinforcing bar
The specific embodiment
In conjunction with Fig. 6-7 and Fig. 1, be the structural representation of the concrete slab low yield point steel plate that the present invention relates to power consumption shear wall.Comprise Vierendeel girder member (comprising back timber 2 and bottom girder 3), concrete slab 4, steel plate wall 5.Concrete slab 4 is located at both sides on steel plate wall 5 horizontal directions, and steel plate wall is both sides connecting frame beam about in the of 5.See Fig. 1, said steel plate wall 5 comprises that upper and lower first steel plate 6 and second steel plate, 7, the second steel plates 7 between upper and lower first steel plate 6, connect upper and lower first steel plate 6.Connect with butt weld 15 between first steel plate 6 and second steel plate 7, after the welding, need weld grinding is smooth.First steel plate, 6 usefulness common irons are processed, and second steel plate, 7 usefulness low-yield steel are processed, and constitute steel plate wall 5 jointly.(the low-yield steel is lower than Q235 for the steel yield point, and as in the present embodiment, first steel plate 6 adopts Q215, and second steel plate 7 adopts Q345.) width of second steel plate 7 on along continuous straight runs be littler than the width of first steel plate 6, be equivalent to reduce the cross section of steel plate wall 5 mid portions.Fillet between first steel plate, 6 to second steel plates 7, promptly the place of changes of section is provided with arc transition district 8, sees Fig. 1, also can be straight hypotenuse transition region here, sees Fig. 2,3.The bottom 9 of steel plate wall 5 is through being welded to connect on framework bottom girder 3, and top 10 has angle steel 11,12 and the framework back timber 2 of two and symmetry to be welded to connect, and steel plate wall top 10 is clipped in angle steel 11,12 centres, and is welded on two angle steel 11,12.
See Fig. 4, there is concrete slab 4 steel plate wall 5 both sides, and the bolt penetration hole of passing on first, second steel plate 6,7 through plain bolt 23 realizes clamping steel plate wall 5.Wherein the bolt penetration hole on first steel plate 6 is that the bolt penetration hole on slotted hole 13, the second steel plates 7 that extend in the horizontal direction is a circular hole 14.Soft glass plate 24,25 (being the transparent soft board of PVC) is arranged between concrete slab 4 and the steel plate wall 5, make concrete slab 4 and steel plate not take place directly to contact.Slotted hole 13 can make steel plate deform with respect to concrete slab 4, does not produce with concrete slab 4 to interact, and makes concrete slab 4 when the steel plate stress deformation, can provide the steel plate face outer restrained deformation all the time.14 middle of circular holes can accurately be located concrete slab 4 when steel plate is made.
In conjunction with Fig. 4, Fig. 5,, join two-way concrete slab 26 at 4 ends of concrete slab for increasing the intensity of concrete slab 4; Join gauze wire cloth 27 on concrete slab 4 tops; Arrange channel-section steel 28 simultaneously, will clamp concrete bolt 23 and connect together, to strengthen the restriction ability of the outer distortion of 4 pairs of steel plate faces of concrete slab.Channel-section steel 28 has cushion block 29, makes channel-section steel 28 spaced apart apart from concrete surface.
The shear wall that the present invention relates to can guarantee the not outer flexing of generating plane of steel plate, and antidetonation of realizing ideal and energy-dissipating property become the primary structure member in the structure; Simultaneously; Also can replace common wall architectural, not take the building usage space, and concrete slab also can be used as the flameproof protection of steel plate.
The present invention is through the structure of low-yield steel and intermediate cross-section reduction; Can improve the ductility of steel plate wall; With the surrender cross section move down into from the low zone of ductility power consumption well, steel plate middle part that ductility is high; Avoid the local failure of junction to occur in before the steel plate complete buckling, also can make the hysteresis loop of member full, have good energy-dissipating property.Show that through experimental study the buckling-restrained steel plate shear force wall hysteresis loop of this kind low-yield is stable, energy dissipation capacity is good, flexible arrangement.
Manufacturing process of the present invention is following: arrange and the structure stress requirement according to building, confirm the specification of the buckling-restrained steel plate shear force wall of low-yield.First steel plate 6 and second steel plate 7 are cut into the shape that needs, hold bolt penetration hole successfully, comprise slotted hole 13 and the circular hole 14 on second steel plate 7 on first steel plate 6 in pre-designed position.It is welded into steel plate wall 5 with butt weld 15, face of weld is polished flat.Spread the thick soft glass plate of one deck 1mm 24,25 respectively in steel plate wall 5 (along continuous straight runs) both sides.On soft glass plate 24,25, lay bottom layer of the reinforcing steel 26, bottom layer of the reinforcing steel 26 has been filled up the 10mm apart from the soft glass surface.Put cushion block 29 well, on cushion block 29, place channel-section steel 28, with bolt 23 steel plate wall 5, cushion block 29 and channel-section steel 28 are connected then and tighten, see Fig. 4.Wherein, steel cushion block 29 can be formed by stacking with some block plates (as, 40mm hassock piece can be formed by stacking by 4 blocks of 10mm hassock plates).On channel-section steel 28, place gauze wire cloth 27 then, concreting (channel-section steel 28 should be concordant with concrete slab 4 tops).Watered a side earlier, waited after the concrete setting conversely, built opposite side (concrete slab 4 thickness in both sides are 90mm, label C30) member.During on-the-spot the installation, the angle steel 11 of on back timber 2, burn-oning earlier is welded on steel plate wall bottom 9 on the bottom girder 3 simultaneously, angle steel 12 is welded on the back timber 2 again, is adjacent to steel plate wall top 10 with angle steel 11.Steel plate wall 5 and angle steel 11,12 can first local spot welding, when etc. superstructure fast the end being installed, angle steel 11,12 and steel plate wall 5 welded together again.Can farthest avoid steel plate wall 5 to bear vertical load like this.
Instead concrete shear force wall of the present invention, and be widely used in various steel structure frames and the concrete frame structure.

Claims (8)

1. a concrete slab retrains low yield point steel plate power consumption shear wall; Comprise Vierendeel girder member, concrete slab (4) and steel plate wall (5); Concrete slab (4) is respectively established in said steel plate wall (5) both sides on along continuous straight runs; Steel plate wall (5) is both sides connecting frame beam up and down, it is characterized in that: said steel plate wall (5) comprises upper and lower first steel plate (6), and connects second steel plate (7) of upper and lower first steel plate (6); The width of said second steel plate (7) on along continuous straight runs is less than first steel plate (6); Said second steel plate (7) is a low yield point steel plate, is provided with soft glass plate (24,25) between said steel plate wall (5) and the concrete slab (4), and said soft glass plate (24,25) is gone up and laid reinforcing bar (26); Reinforcing bar (26) has filled up through cushion block (29) and has kept the gap with soft glass plate (24,25); Also be provided with channel-section steel (28) on the cushion block (29), bolt (23) passes steel plate wall (5), cushion block (29) and channel-section steel (28), and steel plate wall (5), soft glass plate (24,25) are connected with concrete slab (4).
2. concrete slab constraint low yield point steel plate power consumption shear wall according to claim 1, it is characterized in that: the fillet between first, second steel plate (6,7) is an arc transition.
3. the concrete slab constraint low yield point steel plate power consumption shear wall of stating according to claim 1; It is characterized in that: first, second steel plate on the said steel plate wall (5) (6,7) is equipped with bolt penetration hole; Wherein the bolt penetration hole on first steel plate (6) is the slotted hole (13) that extends on the horizontal direction, and the bolt penetration hole on second steel plate (7) is circular hole (14).
4. the concrete slab constraint low yield point steel plate power consumption shear wall of stating according to claim 3, it is characterized in that: the thick 1mm of said soft glass plate (24,25), reinforcing bar (26) is 10mm with the clearance distance of soft glass plate (24,25).
5. the concrete slab constraint low yield point steel plate power consumption shear wall of stating according to claim 4 is characterized in that: put gauze wire cloth (27) on said channel-section steel (28) and the concrete slab (4).
6. the concrete slab constraint low yield point steel plate power consumption shear wall of stating according to claim 1; It is characterized in that: said Vierendeel girder member comprises back timber (2); Back timber (2) is divided into symmetrical angle steel (11,12); Steel plate wall top (10) inserts in the symmetrical angle steel (11,12), and is connected with back timber (2).
7. the concrete slab constraint low yield point steel plate power consumption shear wall of stating according to claim 6, it is characterized in that: said Vierendeel girder member also comprises bottom girder (3), steel plate wall bottom (9) are connected with bottom girder (3).
8. according to each described concrete slab constraint low yield point steel plate power consumption shear wall of claim 1-7, it is characterized in that: be the butt joint welding between said first, second steel plate (6,7), butt weld (15) polishes flat.
CN201110079131XA 2011-03-30 2011-03-30 Concrete slab constrained low-yield steel plate dissipative shear wall Active CN102182261B (en)

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Publication number Priority date Publication date Assignee Title
CN102966195B (en) * 2012-09-06 2015-07-01 上海蓝科建筑减震科技股份有限公司 TJS (tactical jamming system) metal shearing type damper
CN103526862A (en) * 2013-11-04 2014-01-22 上海同育建筑科技有限公司 Energy-consumption metal plate wall
CN106968365B (en) * 2017-05-12 2019-06-21 哈尔滨工业大学深圳研究生院 A kind of anti-buckling steel plate shear force wall of assembled for taking into account load and energy consumption
CN108360705B (en) * 2018-01-25 2020-04-28 同济大学 Slotted steel plate shear wall for evaluating maximum interlayer deformation of building caused by earthquake
CN109763582B (en) * 2019-03-11 2020-05-19 江苏科技大学 Repairable type low yield point steel damper connected by grooves

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CN101245619A (en) * 2008-03-06 2008-08-20 同济大学 Combined steel plate shearing force wall with large aspect ratio
CN201531070U (en) * 2009-10-30 2010-07-21 董毓利 Aluminum-steel combined steel-plate shear wall
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