CN102535679B - Shear wall with dense ribs and clad steel plates - Google Patents

Shear wall with dense ribs and clad steel plates Download PDF

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Publication number
CN102535679B
CN102535679B CN201210002531.5A CN201210002531A CN102535679B CN 102535679 B CN102535679 B CN 102535679B CN 201210002531 A CN201210002531 A CN 201210002531A CN 102535679 B CN102535679 B CN 102535679B
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steel plate
steel
embedded
shear
rib
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CN102535679A (en
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田洁
颜智超
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Xian University of Technology
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Abstract

The invention discloses a shear wall with dense ribs and clad steel plates. The shear wall comprises a plurality of rib beams and rib columns, wherein the rib beams and the rib columns form rectangular sash structures; an embedded steel plate is arranged in each sash; both the rib beams and the rib columns are made of reinforced concrete, section steel concrete or all steel; each embedded steel plate is made of common low-carbon steel, high-strength steel, low-yield point steel or low-yield strength aluminum, is a rectangular plate, a rectangular plate with a vertical slit and a round hole, an X-shaped plate, or a strip plate; and the ductility and the rigidity of the shear wall can be adjusted conveniently by changing the slit quantity, the round hole dimension, the circular arc size and the width of the steel plates, so as to improve the bearing capacity of the integral structure. Therefore, the shear wall is a superior novel anti-lateral force component for earthquakes. The shear wall provided by the invention has the advantages that the steel plates can be prevented from bending; the embedded steel plates are adjustable; the seismic performance is high; the construction and the mounting are convenient; steel material is save; the construction cost is low; the application is easy; and a reinforced concrete structure, or steel structure or another structure for a high-rise building is adopted.

Description

A kind of close rib composite steel plate shear wall
Technical field
The invention belongs to building structure aseismatic technical field, be specifically related to a kind of close rib composite steel plate shear wall.
Background technology
Frame _ Shear Wall Structure is a kind of form of structure that China extensively adopts.Traditional Frame _ Shear Wall Structure is that the reinforced concrete shear wall that is equipped with some with reinforced concrete frame forms, but, a series of shake " Invest, Then Investigate " statistics in recent years show, reinforced concrete shear wall effect in opposing, when strong earthquakes is bad, it is shake complete or most of damage afterwards, cannot keep in repair and reinforce, thereby increased considerably earthquake reconstruction workload.For this reason, the U.S., Japan and the national development such as Canadian the embedded steel plate shear wall structure of a kind of novel lateral resisting structure system, it is that the embedded steel plate that is equipped with some in framework forms, and embedded steel plate is only born the shearing transmitting along Vierendeel girder, post, and does not bear the vertical load of structure.Research shows: general wind carry with little shake under, embedded steel plate can not produce permanent deformation, after shake, can return to original state; Under large shake effect, embedded steel plate is by self plastic strain absorption, dissipation seismic energy, thereby protects other members normally to use, and fully demonstrated feature and the antidetonation superiority of For Passive Energy Dissipation Structures, is a kind of comparatively ideal structural system.
In reinforced concrete frame-shear wall structure, adopt the alternative reinforced concrete shear wall of embedded steel plate shear force wall can improve initial stiffness, lateral force resistance, ductility and the Hysteresis Behavior etc. of structure.As a kind of new technology, in the high earthquake intensity of China area of providing fortification against earthquakes, embedded steel plate shear force wall has been applied to some new constructions and maintenance and reinforcement engineering in recent years, and the fact shows to have good effect.Embedded steel plate shear force wall has become a kind of high-rise Lateral Resistant System very with development prospect.
Traditional embedded steel plate shear force wall has slab shear wall, thin plate shear wall and the steel plate wall of putting more energy into several, and slab shear wall has the initial in-plane stiffness of larger elasticity, and has good ductility and stable Hysteresis Behavior under large shake effect.Slab shear wall is born side direction horizontal power by shearing resistance in face, and cripling generally can not occur, and also can not form larger pull strap even if there is surrender post-buckling, little to the degree of dependence of peripheral frame beam column.The maximum deficiency of slab wall is that steel quantity consumption is large and cost is high, and development is subject to certain restrictions.Thin plate shear wall can be saved steel using amount, but because its flakiness ratio is larger, hour cripling just occurs in lateral force, and along with the increase gradually of lateral force forms pull strap in steel plate wall diagonal; Pull strap is anchored on steel plate wall periphery beam column member, and coupled columns can form additional bending moment.To steel sheet wall, can be by stiffening rib being set to improve its stress performance and ductility.The great advantage that stiffening rib is set is to improve the elastic stiffness of thin plate, and it is had in elastic-plastic range stablize full hysteresis loop, overcome " pinching " phenomenon of steel sheet hysteresis loop.But to the embedded steel plate wall of putting more energy into, because embedded steel plate is thinner, stiffening rib welding gets up easily " to burn " embedded steel plate, the defects such as a large amount of welding positions inevitably exist crackle, be mingled with, under reciprocating load, crackle is easily expanded rapidly and brittle fracture is occurred very soon, has reduced the ductility of wallboard, and a large amount of stiffening ribs can increase cost.Publication number is that the patent text of CN1603536 discloses a kind of name and is called " the embedded steel plate shear force wall of anti-buckling energy-consumption ", its formation is made up of embedded steel plate and both sides, front and back concrete cover, between embedded steel plate and concrete cover, is connected by the plain bolt or the prestressed high strength bolt that penetrate three blocks of plates.Because concrete cover provides out of plane constraint to embedded steel plate, can effectively prevent embedded steel plate flexing unstability.But the elastic modulus difference of concrete and embedded steel plate is larger, meet the requirement of concrete cover constraint rigidity, the thickness of concrete cover tends to very large, in addition large (general 3 meters high, 6 meters wide) of the area of shear wall, cause the embedded steel plate shear force wall of anti-buckling energy-consumption from great, make, construct, transport and install difficulty, be difficult for enforcement.Publication number is that the patent application text of CN101126253 discloses a kind of name and is called " the embedded steel plate shear force wall of partition block type sticking-free flection-proof ".This anti-buckling embedded steel plate shear force wall is to divide restraining tube unit concrete cover into some, to alleviate an above-mentioned difficult problem.But embedded steel plate is still a monoblock, and for ensureing that rigidity needs again to increase many stiffening ribs in length and breadth on the embedded steel plate between concrete cover subregion.Therefore, partition block type sticking-free flection-proof steel plate shearing force wall still can not fundamentally solve making construction and the transport installation question of such body of wall.In sum, due to existing technology mostly exist easy flexing unstability, difficulty of construction large, from great, cost is high, be difficult for the subject matters such as enforcement, has affected its applying in engineering reality.
Summary of the invention
The object of this invention is to provide a kind of close rib composite steel plate shear wall, can prevent steel plate flexing, embedded steel plate is adjustable, and anti-seismic performance is good, and construction install convenience is saved steel, and cost is low, easy to implement.
The technical solution adopted in the present invention is, a kind of close rib composite steel plate shear wall, is characterized in that, comprises multiple girt strips and rib post, and the plurality of girt strip and rib post form rectangle frame lattice structure, are provided with embedded steel plate in each sash; The plurality of girt strip and rib post are made by steel concrete, steel reinforced concrete or all steel; The plurality of embedded steel plate is ordinary low-carbon steel Q235, high strength steel Q345, high strength steel Q390, high strength steel Q420, Low Yield Point Steel or low yield strength aluminium, and the yield strength of this Low Yield Point Steel is 100MPa, 160MPa or 225MPa.
Rectangle frame lattice structure is four rib post four girt strip structures, three rib post four girt strip structures or five rib post four girt strip structures, and wallboard thickness is 200mm~300mm, described sash is of a size of 500mm~1000mm, the height dimension of each girt strip and rib post is 100mm~200mm, and the flakiness ratio of each embedded steel plate is not more than 250; The length dimension of four rib post four girt strip structure wallboards is 2.0m~3.6m, the length dimension of three rib post four girt strip structure wallboards is 1.3m~2.2m, the length dimension of five rib post four girt strip structure wallboards is 2.5m~4.5m., and the height dimension of these three kinds of wallboards is 2.5m~3.6m.
Further, each embedded steel plate is rectangular slab.Or each embedded steel plate is the rectangular slab that evenly has multiple perps, the seam of each perps is wide is 1mm~2mm.Or each embedded steel plate is the rectangular slab that evenly has multiple circular ports, circular port totally 5 is arranged 23, and aperture is 20mm~40mm.The both sides up and down of each embedded steel plate or four peripheries all weld or pass through high-strength bolt bolt on junction steel plate; On corresponding girt strip or rib post, be provided with embedded iron parts, each junction steel plate welds or passes through high-strength bolt bolt on corresponding embedded iron parts; Or, on corresponding girt strip or rib post, being reserved with keyhole, each junction steel plate is connected on corresponding girt strip or rib post by high-strength punching bolt.
Or each embedded steel plate is stripe board, the width of stripe board is 1/3~1/2 of sash width.The both sides up and down of each embedded steel plate are all welded or are passed through high-strength bolt bolt on junction steel plate; On corresponding girt strip, be provided with embedded iron parts, each junction steel plate welds or passes through high-strength bolt bolt on corresponding embedded iron parts; Or, on corresponding girt strip, being reserved with keyhole, each junction steel plate is connected on corresponding girt strip with high-strength punching bolt.
Or each embedded steel plate is X-shaped plate, four limits of X-shaped plate are 1/4~1/2 circular arc.Four end pin of each embedded steel plate all weld or pass through high-strength bolt bolt on junction steel plate, on corresponding girt strip and the node of rib post, are provided with embedded iron parts, and each junction steel plate welds or passes through high-strength bolt bolt on corresponding embedded iron parts.
The advantage of the close rib composite steel plate of the present invention shear wall is:
(1) existing steel plate shear force wall, in order to prevent steel plate flexing unstability, must adopt steel plate or on thin plate, arrange a large amount of stiffening ribs, less economical.And the close rib composite steel plate of the present invention shear wall is made up of the plurality of steel plates of multiple little sashes and dispersed placement, embedded plate size is less, adopt thin plate, its stress performance is just similar to slab, can avoid steel plate flexing, and need not establish stiffening rib again, can save steel, low from heavy and light, cost, there is great practical implementation and be worth, and the quake-resistant safety that improves structure is had great importance.
(2) what existing steel plate shear force wall used is monoblock steel plate, and ductility, Hysteresis Behavior, anti-side rigidity and the bearing capacity of wall body structure freely adjusted in inconvenience.The present invention is owing to using plurality of steel plates, therefore by regulating form, material and the size of steel plate, can easily adjust ductility, Hysteresis Behavior, anti-side rigidity and the bearing capacity of wall body structure, thereby improve stress performance and the shock resistance of general frame structure, effectively avoid frame construction to collapse under large shake effect.
(3) the present invention is prefabricated units, and embedded plate size is little, construction install convenience, and speed of application is fast.And it is convenient after shake, to change, repair, and after shake, rehabilitation expense is low.
(4) in the present invention, the material scope of applicable steel plate is large, makes the present invention have wide practical engineering application prospect.Especially can select the most frequently used, the most easily obtain and the lower ordinary low-carbon steel Q235 of price, it had both been applicable to bearing type shear wall, was also applicable to energy-dissipating type shear wall.
(5) scope of application of the present invention is extensive, can be used for framework, Frame-Shear Wall, shear wall structure system.
Brief description of the drawings
Fig. 1 is the scheme of installation of the close rib composite steel plate of the present invention shear wall in frame construction;
Fig. 2 is the structural representation of the close rib composite steel plate of the present invention shear wall, and wherein, Fig. 2 (a) is four rib post four girt strip structures, 2(b) be three rib post four girt strip structures, Fig. 2 (c) is five rib post four girt strip structures, Fig. 2 (d) is longitdinal cross-section diagram;
Fig. 3 is form and the connection diagram of the embedded steel plate in the present invention; Wherein, in Fig. 3 (a), embedded steel plate is the rectangular slab that evenly has multiple perps, and link position is four peripheries; In Fig. 3 (b), embedded steel plate is the rectangular slab that evenly has multiple perps, and link position is upper and lower both sides; In Fig. 3 (c), embedded steel plate is the rectangular slab that evenly has multiple circular ports, and link position is four peripheries; In Fig. 3 (d), embedded steel plate is the rectangular slab that evenly has multiple circular ports, and link position is upper and lower both sides; In Fig. 3 (e), embedded steel plate is X-shaped plate, and link position is four end pin; In Fig. 3 (f), embedded steel plate is stripe board, and link position is upper and lower both sides.
Wherein, 1. girt strip, 2. rib post, 3. embedded steel plate, 4. Vierendeel girder, 5. frame column, 6. joint pin, 7. junction steel plate, 8. connecting reinforcement, 9. embedded iron parts, 10. perps, 11. circular ports.
Detailed description of the invention
As shown in Figure 1, the close rib composite steel plate of the present invention shear wall comprises multiple girt strips 1 and rib post 2, and multiple girt strips 1 and rib post 2 form rectangle frame lattice structure, are provided with embedded steel plate 3 in each sash.Girt strip 1 and rib post 2 are made by steel concrete, steel reinforced concrete or all steel.
The application of the present invention in frame construction is by this close rib composite steel plate shear wall of the present invention, or after being connected by joint pin 6 between multiple close rib composite steel plate shear wall, to be arranged in the framework being made up of Vierendeel girder 4 and frame column 5.The protruding multiple connecting reinforcements 8 of periphery of the close rib composite steel plate of the present invention shear wall, and be connected with framework by this connecting reinforcement 8.Embedded steel plate 3 both sides can be filled and led up with lightweight foamed plastics piece and sash, and smear foam cement outward, or in sash both sides, surrounding layer are set, and surrounding layer is string composite strip plate, Thistle board, cement gypsum plate, selenite cement plate and various veneer.Vierendeel girder 4 and frame column 5 and joint pin 6 are steel concrete, steel reinforced concrete or all steel.
According to using function, the close rib composite steel plate of the present invention shear wall is divided into two types of bearing type and energy-dissipating types.The close rib composite steel plate of bearing type shear wall is only for preventing wallboard flexing unstability; Energy-dissipating type close rib composite steel plate shear wall can ensure not flexing of wallboard, can also ensure the energy dissipation capacity after steel plate surrender.Therefore, when wallboard is only when improving the rigidity of structure and bearing capacity, can select the close rib composite steel plate of bearing type shear wall, in design, should determine wallboard bearing capacity according to design performance target.When wallboard should be used for improving rigidity and the bearing capacity of structure, during again for the dissipative member of structure, can select energy-dissipating type close rib composite steel plate shear wall, in design, should be able to ensure that wallboard is issued to surrender in middle shake.To energy-dissipating type close rib composite steel plate shear wall, between each embedded steel plate 3 and sash and sash be less than or equal to 2/3 with the yield displacement ratio of framework, each embedded steel plate 3 is more than or equal to 0.8 with sash, sash with the yield load ratio of framework, controlling thus destruction order is undertaken by the order of embedded steel plate 3, sash, framework, with classification dissipation seismic energy, ensure rational failure mode.
To the close rib composite steel plate of bearing type shear wall, embedded steel plate 3 uses ordinary low-carbon steel Q235, high strength steel Q345, high strength steel Q390 or high strength steel Q420.To energy-dissipating type close rib composite steel plate shear wall, embedded steel plate 3 uses Low Yield Point Steel, and the yield strength of described Low Yield Point Steel is 100MPa, 160MPa or 225MPa, or uses ordinary low-carbon steel Q235, low yield strength aluminium.
As shown in Figure 2, rectangle frame lattice structure of the present invention is four rib post four girt strip structures, three rib post four girt strip structures or five rib post four girt strip structures.Wallboard thickness L7 is 200mm~300mm, and sash size L2 is 500mm~1000mm, and the height dimension L1 of each girt strip 1 and rib post 2 is 100mm~200mm, and the flakiness ratio of each embedded steel plate 3 is not more than 250.The length dimension L4 of four rib post four girt strip structure wallboards is 2.0m~3.6m, the length dimension L5 of three rib post four girt strip structure wallboards is 1.3m~2.2m, the length dimension L6 of five rib post four girt strip structure wallboards is 2.5m~4.5m., and the height dimension L3 of these three kinds of wallboards is 2.5m~3.6m.These three kinds of specification wallboards can be combined on demand, and connect with joint pin 6.
As shown in Figure 3, embedded steel plate 3 uses rectangular slab.Or embedded steel plate 3 uses the rectangular slab that evenly has multiple perps 10, the seam of each perps 10 is wide is 1mm~2mm.Or embedded steel plate 3 uses the rectangular slab that evenly has multiple circular ports 11,23 circular ports 11 of totally 5 rows, and aperture is 20mm~40mm.Now, the mounting means of embedded steel plate 3 in sash is: 1, the both sides up and down of each embedded steel plate 3 or four peripheries all weld or pass through high-strength bolt bolt on junction steel plate 7, on corresponding girt strip 1 or rib post 2, be provided with embedded iron parts 9, each junction steel plate 7 welds or passes through high-strength bolt bolt on corresponding embedded iron parts 9.2, the both sides up and down of each embedded steel plate 3 or four peripheries all weld or pass through high-strength bolt bolt on junction steel plate 7, on corresponding girt strip 1 or rib post 2, be reserved with keyhole, each junction steel plate 7 is connected on corresponding girt strip 1 or rib post 2 by high-strength punching bolt.
Or embedded steel plate 3 uses stripe board, the width of each stripe board is 1/3~1/2 of sash width.Now, the mounting means of embedded steel plate 3 in sash is: 1, the both sides up and down of each embedded steel plate 3 are all welded or passed through high-strength bolt bolt on junction steel plate 7, on corresponding girt strip 1, be provided with embedded iron parts 9, each junction steel plate 7 welds or passes through high-strength bolt bolt on corresponding embedded iron parts 9.2, the both sides up and down of each embedded steel plate 3 are all welded or are passed through high-strength bolt bolt on junction steel plate 7, on corresponding girt strip 1, are reserved with keyhole, and the high-strength punching bolt of each junction steel plate 7 use is connected on corresponding girt strip 1.
Or embedded steel plate 3 uses X-shaped plate, four limits of each X-shaped plate are 1/4~1/2 circular arc.Now, the mounting means of embedded steel plate 3 in sash is: four end pin of each embedded steel plate 3 all weld or pass through high-strength bolt bolt on junction steel plate 7, on corresponding girt strip 1 and the node of rib post 2, be provided with embedded iron parts 9, each junction steel plate 7 welds or passes through high-strength bolt bolt on corresponding embedded iron parts.
The present invention in use, by adjusting the size of circular arc or the width of bar steel plate in the size, X-shaped steel plate of the quantity of cracking in rectangular steel plates, perforate aperture size, ductility, Hysteresis Behavior, anti-side rigidity and the bearing capacity of close rib composite steel plate shear wall be can regulate easily, thereby integrally-built stress performance and shock resistance improved.

Claims (4)

1. a close rib composite steel plate shear wall, is characterized in that, comprises multiple girt strips (1) and rib post (2), and described multiple girt strips (1) and rib post (2) form rectangle frame lattice structure, are provided with embedded steel plate (3) in described each sash;
Described each embedded steel plate (3) is for evenly having the rectangular slab of multiple perps (10), the seam of described each perps (10) is wide is 1mm~2mm, or, described each embedded steel plate (3) is for evenly having the rectangular slab of multiple circular ports (11), described circular port (11) totally 5 is arranged 23, and aperture is 20mm~40mm, or, described each embedded steel plate (3) is stripe board, the width of described stripe board is 1/3~1/2 of sash width, or described each embedded steel plate (3) is X-shaped plate, four limits of described X-shaped plate are 1/4~1/2 circular arc;
Described multiple girt strip (1) and rib post (2) are made by steel concrete, steel reinforced concrete or all steel; Described multiple embedded steel plates (3) are ordinary low-carbon steel Q235, high strength steel Q345, high strength steel Q390, high strength steel Q420, Low Yield Point Steel or low yield strength aluminium, and the yield strength of this Low Yield Point Steel is 100MPa, 160MPa or 225MPa.
2. according to close rib composite steel plate shear wall claimed in claim 1, it is characterized in that, described rectangle frame lattice structure is four rib post four girt strip structures, three rib post four girt strip structures or five rib post four girt strip structures, and wallboard thickness is 200mm~300mm, described sash is of a size of 500mm~1000mm, the height dimension of described each girt strip (1) and rib post (2) is 100mm~200mm, and the flakiness ratio of described each embedded steel plate (3) is not more than 250; The length dimension of described four rib post four girt strip structure wallboards is 2.0m~3.6m, the length dimension of described three rib post four girt strip structure wallboards is 1.3m~2.2m, the length dimension of described five rib post four girt strip structure wallboards is 2.5m~4.5m., and the height dimension of these three kinds of wallboards is 2.5m~3.6m.
3. according to the close rib composite steel plate shear wall described in claim 1 or 2, it is characterized in that, the both sides up and down of the described rectangular slab that has multiple perps (10) or four peripheries all weld or pass through high-strength bolt bolt on junction steel plate (7), or, the both sides up and down of the described rectangular slab that has multiple circular ports (11) or four peripheries all weld or pass through high-strength bolt bolt on junction steel plate (7), or the both sides up and down of described stripe board are welded or are passed through high-strength bolt bolt on junction steel plate (7);
On the girt strip (1) of described correspondence or rib post (2), be provided with embedded iron parts (9), described each junction steel plate (7) welds or passes through high-strength bolt bolt on corresponding embedded iron parts (9); Or, on the girt strip (1) of described correspondence or rib post (2), being reserved with keyhole, described each junction steel plate (7) is connected on corresponding girt strip (1) or rib post (2) by high-strength punching bolt.
4. according to the close rib composite steel plate shear wall described in claim 1 or 2, it is characterized in that, four end pin of described each X-shaped plate all weld or pass through on high-strength bolt bolt junction steel plate (7), on the girt strip (1) of described correspondence and the node of rib post (2), be provided with embedded iron parts (9), described each junction steel plate (7) welds or passes through high-strength bolt bolt on corresponding embedded iron parts (9).
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CN102912896B (en) * 2012-09-18 2015-07-29 西安理工大学 Separate type steel plate shear force wall
CN103628585B (en) * 2013-11-18 2016-06-01 西安建筑科技大学 A kind of buckling-restrained shaped steel plate shear wall structure of soap-free emulsion polymeization part
CN103790262B (en) * 2014-02-13 2015-10-28 智性科技南通有限公司 A kind of changeable type Wasted-energy steel plate combines the shear wall that cracks
CN104481055A (en) * 2014-12-06 2015-04-01 塔里木大学 Dense-rib column anti-seismic ecological wall body system for villages and small town dwelling house
CN105625607A (en) * 2016-02-16 2016-06-01 中建三局集团有限公司 Bolting and welding mixed connection structure for plate type steel plate walls and construction method of bolting and welding mixed connection structure
CN107254924A (en) * 2017-04-19 2017-10-17 青岛腾远设计事务所有限公司 The making of the non-stiffened steel plate shear wall of circular-arc cut and construction method
CN106930434A (en) * 2017-04-19 2017-07-07 青岛腾远设计事务所有限公司 Reduce the non-stiffened steel plate shear wall of circular-arc cut of vertical load influence
CN108729573A (en) * 2017-04-19 2018-11-02 青岛理工大学 Reduce the circular-arc cut stiffened steel plate shear wall that vertical load influences

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