WO2020019955A1 - 装配式内嵌阻尼夹层双钢板混凝土组合剪力墙及其安装方法 - Google Patents

装配式内嵌阻尼夹层双钢板混凝土组合剪力墙及其安装方法 Download PDF

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Publication number
WO2020019955A1
WO2020019955A1 PCT/CN2019/094543 CN2019094543W WO2020019955A1 WO 2020019955 A1 WO2020019955 A1 WO 2020019955A1 CN 2019094543 W CN2019094543 W CN 2019094543W WO 2020019955 A1 WO2020019955 A1 WO 2020019955A1
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Prior art keywords
steel plate
damping
shear wall
concrete
sandwich
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Ceased
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PCT/CN2019/094543
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English (en)
French (fr)
Chinese (zh)
Inventor
张春巍
朱立猛
孙丽
安东
郑杰
米龙飞
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Priority to JP2019561839A priority Critical patent/JP6854363B2/ja
Priority to US16/675,550 priority patent/US10745912B2/en
Publication of WO2020019955A1 publication Critical patent/WO2020019955A1/zh
Anticipated expiration legal-status Critical
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/28—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups combinations of materials fully covered by groups E04C2/04 and E04C2/08
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
    • E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/08—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of metal, e.g. sheet metal

Definitions

  • the invention relates to an assembled built-in damping sandwich double steel plate concrete combined shear wall, and belongs to the technical field of construction.
  • Double steel plate combined shear wall is a new type of shear wall structure evolved on the basis of single layer steel plate combined shear wall.
  • the double steel plate combined shear wall structure system can effectively postpone the buckling of the steel plate, thereby achieving the elastoplastic state, which greatly improves the ultimate shear capacity and lateral resistance of the steel plate shear wall.
  • the double steel plate combined shear wall has the advantages of lighter weight, less cracking of the corner concrete, better ductility, and faster construction speed.
  • most of the existing double-steel-concrete shear walls are cast-in-place and have low energy dissipation capacity. After an earthquake occurs, the double-steel-concrete shear walls are liable to deform and consume energy. Regardless of whether the wall is made of cast-in-place or replaces steel plates, it takes time and labor, and the cost increases.
  • the double steel plate concrete shear wall has weak explosion resistance and impact resistance. Due to the superior performance of the damping material, the steel plate concrete composite shear wall with damping material can improve the explosion resistance and impact resistance of the shear wall.
  • a viscoelastic material rubber material has characteristics such as strong elasticity, large deformation, and good barrier properties, and is widely used in structural engineering. At present, rubber is mainly used in the fields of rubber bearings and viscoelastic damping walls.
  • a viscoelastic damping wall is an energy-consuming component with steel plates on the outside and damping material on the inside, and cannot play a bearing role.
  • the double steel plate concrete shear wall is easy to deform and consume energy. If the deformation is not serious, it needs to be repaired before it can be reused; but if the deformation is serious and cannot be repaired, the steel plate needs to be replaced. Most double-steel concrete shear walls are made in-situ. Whether it is repairing the wall or replacing steel plates, it takes time and labor, which leads to increased costs.
  • the purpose of the present invention is to overcome the above-mentioned shortcomings of the existing double-steel-concrete shear wall, and propose an assembled double-steel-concrete composite shear wall with built-in damping sandwich, which can control the slippage of the steel plate and the concrete section, and the structural damping is high , Energy dissipation and shock absorption capacity and out-of-plane anti-explosion and impact resistance performance is good, easy construction and disassembly, to avoid the initial defects of steel plates and the problem of slurry leakage after concrete placement.
  • An assembled built-in damping sandwich double steel plate concrete combined shear wall comprises a double steel plate layer, a double damping sandwich layer and a concrete layer.
  • the shear wall is connected by bolt-and-rod connecting members, and the double steel plate layer includes long sides.
  • the two damping interlayers are outsourced to the bolt tie rod connection part, and the steel pipe is outsourced to the second damping interlayer connection.
  • the bolt tie rod connection part includes a tie bar restraint rod assembly and a high-strength restraint tie rod assembly.
  • the second damping sandwich layer is embedded between the tie rod restraint rod assembly and the steel pipe to ensure that the first damping sandwich layer slides between the steel plate and the concrete interface.
  • the steel pipe is embedded between the second damping interlayer and the concrete layer, so that the concrete layer is under a multi-directional compression state when the force is applied, which compensates for the compressive and shear bearing capacity of the wall caused by the second damping interlayer. Lowered, while protecting the second damping interlayer from being damaged when pouring concrete, providing a better working environment.
  • the assembled double-steel concrete composite shear wall with built-in damping sandwich is a first steel sheet layer, a first damping sandwich and a concrete layer in order from the outside to the inside.
  • a plurality of bolt holes are provided at corresponding positions of the parallel first steel plate, and the tie-bar restraint rod assembly and the high-strength tie-bar assembly pass through the first steel plate and are connected by bolts.
  • the restraint rod assembly with a support plate includes a restraint rod, two support plates and a plurality of nuts.
  • a hole is opened on the first damping interlayer, and the support plate matches the size and shape of the hole.
  • the tie rod restraint assembly with bracing plates not only connects the first steel plates on both sides, but also ensures that the first damping interlayer slides between the interface between the first steel plate and the concrete layer to deform and dissipate energy, so that the steel plate and the concrete contact each other to enhance The interaction between the two makes up for the reduction of the bearing capacity of the wall caused by the addition of a damping layer.
  • the cross section of the second steel plate is C-shaped steel, and one side of the web is outward. The role is to protect the high-strength restraint rod on the inside.
  • the second steel plate is provided with a plurality of bolt holes, and the high-strength restraint rod assembly passes through the second steel plate and is anchored with a nut.
  • the material of the first damping interlayer is a rubber material or a foamed aluminum material. Utilizing the hysteretic energy dissipation of the rubber material, the mechanical energy generated by the structural vibration is converted into internal energy, thereby reducing the dynamic response of the structure and increasing the wall's plane anti-explosion and impact resistance.
  • the second damping interlayer uses a high damping rubber material.
  • the high-strength restraining tie rod assembly includes a friction-type high-strength restraining tie rod and a plurality of nuts.
  • the high-strength restraining tie rod can resist the local pressure effect caused by excessive force at the end connection. At the same time, it can also connect the wall and the supporting transverse connector, which makes the construction of the component simple and convenient.
  • the tie rod restraint rod assemblies are uniformly arranged perpendicular to the direction of the first steel plate, and the spacing is 100-150 mm.
  • the high-strength restraint rod assemblies are uniformly arranged in a direction perpendicular to the first steel plate, and the spacing is 100-150 mm.
  • the opening formed on the first damping interlayer is square.
  • the thickness of the support plate is half of the thickness of the first damping interlayer.
  • the first damping interlayer is embedded between the first steel plate, the second steel plate and the concrete layer, so that the cross-section slip of the first steel plate and the concrete layer is controllable, the damping of the wall is increased, and the consumption of the wall is increased. It can absorb shocks.
  • the damping material chooses a high porosity damping material, it can enhance the anti-explosion and impact resistance of the wall outside the plane.
  • a square hole is opened in the first damping interlayer, and the embedded thickness is half of its thickness.
  • the supporting plate, the other half of the square hole is filled with poured concrete, which compensates for the decrease in the bearing capacity of the wall caused by the addition of a damping layer, prevents slurry leakage, and improves the concrete curing environment.
  • the shape of the opening on the first damping interlayer is not limited to a square, and may be any shape such as a triangle or a circle.
  • the installation method of the above-mentioned assembled built-in damped sandwich double steel plate concrete combined shear wall includes the following steps:
  • the assembled double-steel-concrete composite shear wall with built-in damping interlayer is equipped with a damping layer in the double-steel-concrete composite shear wall.
  • the shear deformation loss of the damping material and the steel plate, the damping material and the concrete section can be used. It can control the sliding of steel plate and concrete cross section; on the other hand, it can effectively increase the damping of the structure, reduce the seismic response of the structure, and increase the energy dissipation capacity of the structure.
  • the assembled double-steel concrete composite shear wall with built-in damping sandwich adopts the design method of opening of the rubber layer plus the internal support plate to ensure that the rubber layer deforms and dissipates energy when the steel plate and the concrete section slide, Making the steel plate and concrete contact each other enhances the interaction between the two, and makes up for the reduction of the wall bearing capacity caused by the addition of a damping layer.
  • This assembled double-steel concrete composite shear wall with built-in damping sandwich, with tie rods on both sides, can realize bolt connection between the wall and the supporting connector to form an assembled double-steel concrete composite shear wall unit with damping sandwich.
  • the construction is convenient and easy to disassemble after damage.
  • FIG. 1 is a schematic structural view of a front view of an assembled built-in damped sandwich double steel plate concrete shear wall according to the present invention.
  • Fig. 2 is a sectional structural schematic view of the assembled built-in damped sandwich double-steel concrete composite shear wall of Fig. 1 along the direction A-A.
  • Fig. 3 is a schematic structural view of a first steel plate.
  • FIG. 4 is a schematic structural view of a first damping interlayer.
  • FIG. 5 is a schematic structural view of a concrete layer.
  • FIG. 6 is a schematic structural view of a front view of a tie rod assembly with a stay plate.
  • FIG. 7 is a schematic structural diagram of a front view of a high-strength restraint rod assembly.
  • FIG. 8 is a schematic structural diagram of a tie rod with a stay.
  • the present invention relates to a prefabricated built-in damped sandwich double steel plate concrete combined shear wall, which includes a double steel plate layer, a double damped sandwich layer, and a concrete layer.
  • the shear wall is connected by a bolt tie rod connection
  • the wall structure is symmetrical, and from the outside to the inside it is a first steel plate layer, a first damping interlayer, and a concrete layer.
  • the double steel plate layer includes two parallel first steel plates 1 in a long side direction and a second steel plate 2 in a short side direction located on a cross section of the first steel plate, and the damping interlayer includes a first damping interlayer 3 and a second damping interlayer 4,
  • the first damping interlayer is located between the first steel plate and the concrete layer 5
  • the second damping interlayer is outsourced to the bolt tie rod connection
  • the steel pipe 8 is outsourced to the second damping sandwich layer.
  • the bolt tie rod connecting piece includes a tie rod with a stay plate and a high strength constraint
  • the tie rod assembly, the first steel plate and the second steel plate are connected by a tie bar restraint tie rod assembly 6 and a high-strength restraint tie rod assembly 7.
  • the first steel plate is provided with a plurality of bolt holes, so that the restraining tie rod with the supporting plate restraint rod assembly and the high-strength restraining tie rod of the high-strength restraining rod assembly can pass through the first steel plate and be anchored and connected with corresponding nuts.
  • the second steel plate is provided with several bolt holes, so that the high-strength restraint rod assembly passes through the second steel plate and is anchored with a nut; the second steel plate has a C-shaped steel in cross-section, and the web plate is on one side to protect the inner high-strength restraint rod.
  • the number of the first steel plates is two
  • the number of the second steel plates is two.
  • the first damping sandwich is made of a high damping rubber material. On the one hand, it is embedded between the first steel plate, the second steel plate and the concrete layer, so that the cross-section of the first steel plate and the concrete layer can be controlled to increase the wall thickness. Damping improves the energy dissipation and shock absorbing ability of the wall. At the same time, if a high-porosity foam aluminum damping material is used as the damping material, the anti-explosion and impact resistance of the wall outside the plane can be enhanced.
  • the first damping interlayer described above Open a square hole 9 with a half-thick support plate embedded in it. The other half of the square hole is filled with cast concrete.
  • the second damping sandwich layer is provided, and a high damping rubber material is used. Embedded between the concrete layer and the tie rod assembly with braces.
  • the tie-rod restraint rod assembly and high-strength tie-bar assembly with brace are used to bolt the restraint rod and the steel plate to avoid the problems of residual deformation and residual stress caused by welding.
  • the tie rod restraint assembly with a brace is composed of a restraint tie rod 6-1, two support plates 6-2, and a plurality of nuts 6-3, and the size and shape of the opening of the support plate and the first damping interlayer match. They are arranged uniformly in the vertical and horizontal directions with a pitch of 100mm.
  • the high-strength restraint rod assembly is composed of a friction-type high-strength restraint rod 7-1 and a number of high-strength nut 7-2, which are evenly arranged along the vertical direction and the distance is set to 100 mm.
  • Adopt high-strength restraining tie rods which can resist the local pressure effect generated when the end connection is stressed. While connecting the first steel plate and the second steel plate, it can also realize the bolt connection between the wall and the supporting connector to form an assembled damping.
  • the sandwich double steel plate concrete combined shear wall unit is convenient for construction and easy to disassemble after damage.
  • the steel pipe is a 1mm thick seamless steel pipe, which is outsourced to the second damping interlayer and embedded between the second damping interlayer and the concrete layer, so that the concrete layer is in a three-dimensional confining pressure state when under stress, making up for the second damping interlayer.
  • the first damping interlayer is made of foamed aluminum material, which is embedded between the first steel plate, the second steel plate and the concrete layer, and uses its characteristics of high porosity and high energy absorption to enhance the anti-explosion and impact resistance of the wall outside the plane.
  • the second damping interlayer is still made of high-damping rubber material, embedded between the concrete layer and the tie rod assembly with bracing plates, and the shear slippage of the damping layer is achieved together with the first damping interlayer.
  • Embodiment 2 is mainly applicable to a case where a wall body needs high anti-explosion and impact resistance performance.
  • other types of materials can be provided to change the shape of the openings of the first damping interlayer, such as triangles and circles, to give play to its unique material characteristics (such as sound insulation, radiation attenuation, vibration reduction, etc.).
  • An installation method of an assembled built-in damped sandwich double steel plate concrete combined shear wall includes the following steps:

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  • Environmental & Geological Engineering (AREA)
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  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
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PCT/CN2019/094543 2018-07-24 2019-07-03 装配式内嵌阻尼夹层双钢板混凝土组合剪力墙及其安装方法 Ceased WO2020019955A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2019561839A JP6854363B2 (ja) 2018-07-24 2019-07-03 減衰中間層埋め込み型二重鋼板コンクリート複合組立式せん断壁及びその組立方法
US16/675,550 US10745912B2 (en) 2018-07-24 2019-11-06 Assembled double steel-concrete composite shear wall embedded with damping interlayer and method for mounting same

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CN201810819435.7 2018-07-24
CN201810819435.7A CN108894360B (zh) 2018-07-24 2018-07-24 装配式内嵌阻尼夹层双钢板混凝土组合剪力墙及其安装方法

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US16/675,550 Continuation US10745912B2 (en) 2018-07-24 2019-11-06 Assembled double steel-concrete composite shear wall embedded with damping interlayer and method for mounting same

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