CN110821036B - Viscoelastic damping connecting beam for solving out-of-plane rigidity and design method thereof - Google Patents

Viscoelastic damping connecting beam for solving out-of-plane rigidity and design method thereof Download PDF

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Publication number
CN110821036B
CN110821036B CN201911028843.1A CN201911028843A CN110821036B CN 110821036 B CN110821036 B CN 110821036B CN 201911028843 A CN201911028843 A CN 201911028843A CN 110821036 B CN110821036 B CN 110821036B
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lattice
viscoelastic
plates
transverse steel
longitudinal stiffening
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CN110821036A (en
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周颖
赵雪莲
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Tongji University
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Tongji University
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
    • E04H9/02Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate withstanding earthquake or sinking of ground
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings

Abstract

The viscoelastic damping connecting beam is characterized in that steel plates of the viscoelastic damping connecting beam are arranged on the outer sides in the wall thickness range, stiffening plates are arranged among the steel plates and are arranged to be H-shaped steel sections, the steel plates on the outer sides of the damping connecting beam play a role of flanges, the stiffening plates play a role of webs, the inertia moment of the section of a material is exerted, and the using amount of steel materials is reduced. The application has the greatest advantage of simultaneously solving the dual effects of in-plane energy consumption and out-of-plane rigidity.

Description

Viscoelastic damping connecting beam for solving out-of-plane rigidity and design method thereof
Technical Field
The invention belongs to the field of earthquake-resistant structural systems.
Background
As is known, a viscoelastic damping coupling beam is a stiffness damping coupling beam, which utilizes the initial stiffness of viscoelastic material to perform the function of a conventional coupling beam; meanwhile, shear hysteresis energy consumption of the viscoelastic material is utilized, so that damping of the structure is improved, and earthquake or wind vibration response of the structure is reduced. Compare with traditional concrete even roof beam, the viscoelasticity is even the roof beam and is had stronger power consumption shock-absorbing capacity, can realize shaking back quick replacement. In addition, the viscoelastic damping connecting beam is simple to mount, low in manufacturing cost and excellent in performance, and has wide engineering application prospects in high-rise buildings.
As shown in fig. 1, the conventional viscoelastic damping connecting beam is generally composed of a steel plate and a viscoelastic material, which are tightly combined and laminated one on another. In-plane, the viscoelastic material may provide some stiffness; after certain interlaminar shear deformation is achieved, energy can be dissipated. And outside the plane, just because of the limitation of layer upon layer stack structure, the steel sheet consumptive material is great, and often still has the phenomenon that tip steel sheet off-plate rigidity is not enough. In practical engineering, once the viscoelastic damping coupling beam is out-of-plane damaged, the viscoelastic damping coupling beam cannot play the roles of rigidity and energy consumption, and the safety of the main body structure is influenced.
Disclosure of Invention
In order to solve the technical problem, the invention provides a viscoelastic damping connecting beam for solving the out-of-plane rigidity. The scheme provided by the invention provides the out-of-plane rigidity of the connecting beam to the maximum extent, and also has the advantages of component standardization, simple installation and low manufacturing cost.
The technical scheme adopted by the invention is as follows:
principle and technical scheme
A design method of a visco-elastic damping connecting beam for solving the out-of-plane rigidity is characterized in that steel plates of the visco-elastic damping connecting beam are arranged on the outer sides in the wall thickness range, and stiffening plates are arranged among the steel plates. The arrangement is just like the H-shaped steel section, the steel plate on the outer side of the damping connecting beam plays a role of a flange, the stiffening plate plays a role of a web plate, the inertia moment of the section of the material is exerted, and meanwhile, the consumption of steel materials is reduced.
In the case of satisfying the out-of-plane stiffness, the arrangement of viscoelastic materials, component standardization and cost factors are further considered as a technical solution of a preferred embodiment: the damping connecting beam steel plate and the stiffening ribs are made into lattice type components which are complementary left and right and are completely the same. Thus, each of the in-plane steel plates is used as a lamination surface of the viscoelastic material, and each of the out-of-plane steel plates is used as a stiffening rib. In this case, material properties and economy are simultaneously maximized.
Based on the principle of the method, the technical scheme of the structure is further provided:
a viscoelastic coupling beam for solving the out-of-plane rigidity is characterized by comprising a viscoelastic material (1), a transverse steel plate (2) and a longitudinal stiffening plate (3);
the plurality of transverse steel plates (2) are spaced and parallel to each other; the flange is arranged in the wall thickness range to form a flange system; the longitudinal stiffening plates (3) are arranged in parallel and in intervals between adjacent transverse steel plates (2) in a manner of being vertical to the transverse steel plates (2) to form a web plate system; the flange system and the web system provide out-of-plane section inertia moment to ensure out-of-plane rigidity of the viscoelastic coupling beam;
during design, each single body is designed into a lattice type member, and comprises three transverse steel plates (2) which are equal in length and spacing to form two large lattices; the steel plate is characterized by further comprising three longitudinal stiffening plates (3), wherein one longitudinal stiffening plate is long, the other longitudinal stiffening plate is short, the long longitudinal stiffening plate (3) is located on the edge side and used for being connected with the three transverse steel plates (2) to form a whole, and the two short longitudinal stiffening plates (3) are arranged on one large lattice simultaneously so that the large lattice is changed into three small lattices;
when the lattice type component is used, the two lattice type components are used in pairs, one of the two lattice type components is turned over and then inserted into the other lattice type component, and the small lattices are inserted into the large lattices of the other lattice type component, so that the whole lattice type component is in a uniform small lattice shape;
every two lattice type components used in pairs are mutually inserted to form small lattices with complementary functions and completely identical uniform states, viscoelastic materials (1) are arranged between the superposed transverse steel plates (2) and are tightly attached to form a viscoelastic material superposed surface.
Further, after the number of the lattice component monomers is expanded, a plurality of lattice component monomers can be spliced into a large-area uniform-state lattice system.
Furthermore, an embedded steel plate (4) is arranged on the main structure, and the transverse steel plate (2) on the outermost side in the uniform state lattice system is connected with the embedded steel plate (4) through a welding seam (5).
The application has the greatest advantage of simultaneously solving the dual effects of in-plane energy consumption and out-of-plane rigidity.
This application is applicable to all structures that have wall limb and even roof beam, has great advantage from aspects such as anti-seismic performance, economic nature, suitability, construction convenience, provides a new thinking for viscoelastic even roof beam's popularization and application.
Drawings
FIG. 1 is a schematic diagram of the size and configuration of a conventional viscoelastic damper.
Fig. 2 is a schematic diagram of a viscoelastic damping coupling beam implementation method for solving out-of-plane stiffness according to a preferred embodiment.
Fig. 3 is a cross-sectional structure (complementary left and right, identical lattice members) at a-a in fig. 2 of the preferred embodiment.
Fig. 3-1 is a three-dimensional view corresponding to fig. 3.
Fig. 4 is a lattice standard component taken out of fig. 3-1.
Fig. 4-1 is a three-dimensional view corresponding to fig. 4.
Description of the reference symbols
Viscoelastic material 1, transverse steel plate 2, longitudinal stiffening rib 3, pre-buried steel plate 4 and welding seam 5
Detailed Description
The technical solutions provided in the present application will be further described with reference to the following specific embodiments and accompanying drawings. The advantages and features of the present application will become more apparent in conjunction with the following description.
It should be noted that the embodiments of the present application have a better implementation and are not intended to limit the present application in any way. The technical features or combinations of technical features described in the embodiments of the present application should not be considered as being isolated, and they may be combined with each other to achieve a better technical effect. The scope of the preferred embodiments of this application may also include additional implementations, and this should be understood by those skilled in the art to which the embodiments of this application pertain.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
The drawings in the present application are in simplified form and are not to scale, but rather are provided for convenience and clarity in describing the embodiments of the present application and are not intended to limit the scope of the application. Any modification of the structure, change of the ratio or adjustment of the size of the structure should fall within the scope of the technical disclosure of the present application without affecting the effect and the purpose of the present application. And the same reference numbers appearing in the various drawings of the present application designate the same features or components, which may be employed in different embodiments.
A viscoelastic coupling beam for solving the out-of-plane rigidity is characterized by comprising a viscoelastic material (1), a transverse steel plate (2) and a longitudinal stiffening plate (3);
the plurality of transverse steel plates (2) are spaced and parallel to each other; the flange is arranged in the wall thickness range to form a flange system; the longitudinal stiffening plates (3) are arranged in parallel and in intervals between adjacent transverse steel plates (2) in a manner of being vertical to the transverse steel plates (2) to form a web plate system; the flange system and the web system provide out-of-plane section inertia moment to ensure out-of-plane rigidity of the viscoelastic coupling beam;
when the single bodies are designed, only as an embodiment, each single body is designed into a lattice type member, and comprises three transverse steel plates (2) which are equal in length and equal in spacing to form two large lattices; the steel plate is characterized by further comprising three longitudinal stiffening plates (3), wherein one longitudinal stiffening plate is long, the other longitudinal stiffening plate is short, the long longitudinal stiffening plate (3) is located on the edge side and used for being connected with the three transverse steel plates (2) to form a whole, and the two short longitudinal stiffening plates (3) are arranged on one large lattice simultaneously so that the large lattice is changed into three small lattices;
when the lattice type component is used, the two lattice type components are used in pairs, one of the two lattice type components is turned over and then inserted into the other lattice type component, and the small lattices are inserted into the large lattices of the other lattice type component, so that the whole lattice type component is in a uniform small lattice shape;
every two lattice type components used in pairs are mutually inserted to form small lattices with complementary functions and completely identical uniform states, viscoelastic materials (1) are arranged between the superposed transverse steel plates (2) and are tightly attached to form a viscoelastic material superposed surface.
Further, after the number of the lattice component monomers is expanded, a plurality of lattice component monomers can be spliced into a large-area uniform-state lattice system.
Furthermore, an embedded steel plate (4) is arranged on the main structure, and the transverse steel plate (2) on the outermost side in the uniform state lattice system is connected with the embedded steel plate (4) through a welding seam (5).
In addition, from the installation perspective, in order to avoid the initial shear deformation of the viscoelastic material caused by bolt construction, the outer steel plate of the damping connecting beam is connected with the embedded plate of the main structure through a welding seam. Therefore, the welding seam can make up construction errors on the one hand, and on the other hand, when the damping coupling beam is replaced after the earthquake, the rapid replacement can be realized through the construction processes of cutting, grinding and the like.
The above description is only illustrative of the preferred embodiments of the present application and is not intended to limit the scope of the present application in any way. Any changes or modifications made by those skilled in the art based on the above disclosure should be considered as equivalent effective embodiments, and all the changes or modifications should fall within the protection scope of the technical solution of the present application.

Claims (3)

1. A viscoelastic coupling beam for solving the out-of-plane rigidity is characterized by comprising a viscoelastic material (1), a transverse steel plate (2) and a longitudinal stiffening plate (3);
the plurality of transverse steel plates (2) are spaced and parallel to each other; the flange is arranged in the wall thickness range to form a flange system; the longitudinal stiffening plates (3) are arranged in parallel and in intervals between adjacent transverse steel plates (2) in a manner of being vertical to the transverse steel plates (2) to form a web plate system; the flange system and the web system provide out-of-plane section inertia moment to ensure out-of-plane rigidity of the viscoelastic coupling beam;
each single body is designed into a lattice type member and comprises three transverse steel plates (2) which are equal in length and equal in spacing to form two large lattices; the steel plate is characterized by further comprising three longitudinal stiffening plates (3), wherein one longitudinal stiffening plate is long, the other longitudinal stiffening plate is short, the long longitudinal stiffening plate (3) is located on the edge side and used for being connected with the three transverse steel plates (2) to form a whole, and the two short longitudinal stiffening plates (3) are arranged on one large lattice simultaneously so that the large lattice is changed into three small lattices;
when the lattice type component is used, the two lattice type components are used in pairs, one of the two lattice type components is turned over and then inserted into the other lattice type component, and the small lattices are inserted into the large lattices of the other lattice type component, so that the whole lattice type component is in a uniform small lattice shape;
every two lattice type components used in pairs are mutually inserted to form small lattices with complementary functions and completely identical uniform states, viscoelastic materials (1) are arranged between the superposed transverse steel plates (2) and are tightly attached to form a viscoelastic material superposed surface.
2. The viscoelastic coupling beam for resolving out-of-plane stiffness of claim 1 wherein the expanded number of the lattice member monomers can be spliced into a large area uniform state lattice system.
3. The viscoelastic coupling beam for addressing out-of-plane stiffness of claim 1, wherein the application and mounting to the body structure is: the main structure is provided with an embedded steel plate (4), and the transverse steel plate (2) at the most lateral side in the uniform state lattice system is connected with the embedded steel plate (4) through a welding seam (5).
CN201911028843.1A 2019-10-28 2019-10-28 Viscoelastic damping connecting beam for solving out-of-plane rigidity and design method thereof Active CN110821036B (en)

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CN110821036B true CN110821036B (en) 2021-06-08

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11153194A (en) * 1997-11-20 1999-06-08 Nippon Steel Corp Damping member integrating elasto-plastic and visco-elastic damper
JP2003232401A (en) * 2002-02-06 2003-08-22 Toyo Tire & Rubber Co Ltd Damping device
CN103233531A (en) * 2013-04-11 2013-08-07 欧进萍 Assembly-type viscoelastic damping wall
CN103993677A (en) * 2014-05-13 2014-08-20 同济大学 Two-stage mixed type energy dissipation and shock absorption device
CN203891242U (en) * 2014-05-13 2014-10-22 同济大学 Replaceable rigid damping connecting beam
CN105507494A (en) * 2016-01-15 2016-04-20 兰州理工大学 Superimposed tooth-form steel plate composite damping energy dissipating type replaceable coupling beam and construction method thereof
CN205653916U (en) * 2016-05-28 2016-10-19 广州大学 Energy dissipation shock attenuation that allies oneself with limb shear force wall links beam construction
CN106499081A (en) * 2016-10-29 2017-03-15 海南大学 A kind of coupling beam wind resistance antishock device
CN106639457A (en) * 2016-10-29 2017-05-10 海南大学 Combined windproof anti-shock coupling beam energy dissipation device
CN109629744A (en) * 2018-12-26 2019-04-16 同济大学 The replaceable energy consumption coupling beam of rotary friction-type

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11153194A (en) * 1997-11-20 1999-06-08 Nippon Steel Corp Damping member integrating elasto-plastic and visco-elastic damper
JP2003232401A (en) * 2002-02-06 2003-08-22 Toyo Tire & Rubber Co Ltd Damping device
CN103233531A (en) * 2013-04-11 2013-08-07 欧进萍 Assembly-type viscoelastic damping wall
CN103993677A (en) * 2014-05-13 2014-08-20 同济大学 Two-stage mixed type energy dissipation and shock absorption device
CN203891242U (en) * 2014-05-13 2014-10-22 同济大学 Replaceable rigid damping connecting beam
CN105507494A (en) * 2016-01-15 2016-04-20 兰州理工大学 Superimposed tooth-form steel plate composite damping energy dissipating type replaceable coupling beam and construction method thereof
CN205653916U (en) * 2016-05-28 2016-10-19 广州大学 Energy dissipation shock attenuation that allies oneself with limb shear force wall links beam construction
CN106499081A (en) * 2016-10-29 2017-03-15 海南大学 A kind of coupling beam wind resistance antishock device
CN106639457A (en) * 2016-10-29 2017-05-10 海南大学 Combined windproof anti-shock coupling beam energy dissipation device
CN109629744A (en) * 2018-12-26 2019-04-16 同济大学 The replaceable energy consumption coupling beam of rotary friction-type

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