CN111119343A - Shear yield type steel pipe concrete vibration isolation support - Google Patents

Shear yield type steel pipe concrete vibration isolation support Download PDF

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Publication number
CN111119343A
CN111119343A CN202010046428.5A CN202010046428A CN111119343A CN 111119343 A CN111119343 A CN 111119343A CN 202010046428 A CN202010046428 A CN 202010046428A CN 111119343 A CN111119343 A CN 111119343A
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CN
China
Prior art keywords
steel pipe
section
connecting plate
vibration isolation
cross
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010046428.5A
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Chinese (zh)
Inventor
孙国华
胡月华
闵益新
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Suzhou University of Science and Technology
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Suzhou University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou University of Science and Technology filed Critical Suzhou University of Science and Technology
Priority to CN202010046428.5A priority Critical patent/CN111119343A/en
Publication of CN111119343A publication Critical patent/CN111119343A/en
Pending legal-status Critical Current

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    • 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
    • E04B1/36Bearings or like supports allowing movement
    • 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, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02Buildings, 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
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings

Abstract

The invention relates to a shear yield type steel pipe concrete vibration isolation support which comprises an upper connecting plate and a lower connecting plate, wherein the upper connecting plate is connected with an upper building through a high-strength bolt, the lower connecting plate is connected with a lower building foundation through a bolt hole and a corresponding bolt, a variable cross-section steel pipe is arranged between the upper connecting plate and the lower connecting plate, a pouring hole is reserved in the upper connecting plate, and concrete is filled in the variable cross-section steel pipe through the pouring hole. The support provided by the invention provides horizontal displacement through plastic deformation generated by the weakened section of the variable-section steel pipe, and has the advantages of excellent ductility, strong bearing capacity, good vibration isolation performance, convenience in construction, low manufacturing cost, easiness in assembly and the like.

Description

Shear yield type steel pipe concrete vibration isolation support
Technical Field
The invention relates to the technical field of building shock absorption and earthquake-resistant engineering, in particular to a shear yield type concrete-filled steel tube vibration isolation support.
Background
The structure vibration isolation system sets up the flexible vibration isolation layer of one deck between lower part building basis and upper portion building, keep apart seismic energy's transmission, reduce the earthquake reaction of upper portion building, the vibration isolation support that present structure vibration isolation system was used commonly is mostly intermediate layer rubber pad support (range upon range of steel sheet rubber support) and lead core rubber support, intermediate layer rubber pad support is through thin sheet rubber and steel sheet range upon range of, whole vulcanization forms under high temperature high pressure, lead core rubber support is on this basis, it inserts the lead core and promotes vertical rigidity to open a hole in the intermediate layer. However, the vibration isolation performance of the two supports mostly depends on the adhesive property of the steel plate and the rubber plate, the process requirement is high, the two supports have toxicity and are not beneficial to environmental protection, the rubber vibration isolator is greatly influenced by temperature, air and the like, the tensile property is poor, the aging phenomenon is easy to occur, and the adaptability to the working environment is poor.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide the vibration isolation support which is environment-friendly, durable, low in manufacturing cost, convenient to construct and good in vibration isolation performance. The vertical bearing capacity and the axial rigidity of the support are provided by concrete, and the effect of shear yielding is generated by providing plastic horizontal displacement through reduction of the horizontal rigidity of the variable cross-section steel pipe weakening layer, so that most of the horizontal displacement of an earthquake is concentrated on the vibration isolation layer, and the earthquake response of an upper structure is reduced.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the utility model provides a shear yield type steel pipe concrete vibration isolation support, includes upper junction plate and lower connecting plate, the upper junction plate is connected with upper portion building through high-strength bolt, the lower connecting plate passes through the bolt hole and corresponding bolt is connected with lower part building foundation, be equipped with the variable cross section steel pipe between upper junction plate and the lower connecting plate, the last reservation of upper junction plate has the filling hole, the inside concrete that has through filling hole packing of variable cross section steel pipe.
Furthermore, the variable cross-section steel pipe is formed by stacking and connecting a plurality of weakening section sections and a plurality of reinforcing section sections, so that the weakening section sections are subjected to plastic deformation to provide horizontal displacement.
Furthermore, the reinforced section sections and the weakened section sections of the variable-section steel pipes are alternately stacked and connected to form a trapezoidal or wavy section.
Furthermore, the variable cross-section steel pipe is a rectangular or cylindrical corrugated pipe, an inward concave section of the corrugated pipe is used as a weakening cross-section, and an outward convex section of the corrugated pipe is used as a reinforcing cross-section.
Further, the shape of the perfusion hole is rectangular or circular.
Furthermore, the upper end and the lower end of the variable cross-section steel pipe are fixedly connected with the upper connecting plate and the lower connecting plate respectively in a welding mode.
The invention has the beneficial effects that:
1. according to the invention, the horizontal rigidity of the variable cross-section steel pipe weakening layer is reduced to provide plastic horizontal displacement so as to generate a shear yielding effect, so that most of the horizontal displacement of an earthquake is concentrated on the vibration isolation layer, and the earthquake response of the upper structure is reduced.
2. The invention provides vertical bearing capacity and axial rigidity through the concrete poured in the inner part.
3. The shear yield type steel pipe concrete vibration isolation support is made of steel and concrete, is easy to obtain materials, and is practical and environment-friendly.
Drawings
FIG. 1 is a schematic diagram of a separation structure according to the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top down isometric view of the present invention;
FIG. 4 is a bottom isometric view of the present invention;
fig. 5 is a schematic structural view of another embodiment (cylindrical bellows) of the present invention.
The reference numbers in the figures illustrate: 1. the concrete comprises an upper connecting plate, 12 pouring holes, 2 lower connecting plates, 21 bolt holes, 3 high-strength bolts, 11 bolt holes, 4 variable cross-section steel pipes, 41 weakened cross-section sections, 42 reinforced cross-section sections and 5 concrete.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 4, a shear yield type steel pipe concrete vibration isolation support comprises an upper connecting plate 1 and a lower connecting plate 2, wherein the upper connecting plate 1 is connected with an upper building through a high-strength bolt 3, in this embodiment, a circle of high-strength bolt 3 is arranged on the upper connecting plate 1, the lower connecting plate 2 is connected with a lower building foundation through a bolt hole 21 and a corresponding bolt, in this embodiment, a circle of bolt hole 21 is arranged on the lower connecting plate 2, a variable cross-section steel pipe 4 is arranged between the upper connecting plate 1 and the lower connecting plate 2, a pouring hole 12 is reserved on the upper connecting plate 1, concrete 5 is filled in the variable cross-section steel pipe 4 through the pouring hole 12, and in this embodiment, the upper connecting plate 1, the lower connecting plate 2 and the variable cross-section steel pipe 4 are made of steel materials.
The variable cross-section steel pipe 4 is formed by stacking and connecting a plurality of weakened cross-section sections 41 and a plurality of reinforced cross-section sections 42, so that the weakened cross-section sections 41 are plastically deformed to provide horizontal displacement.
The reinforced section sections 42 and the weakened section sections 41 of the variable cross-section steel pipe 4 are alternately stacked and connected to form a trapezoidal or wavy cross section.
The variable cross-section steel pipe 4 is a rectangular or cylindrical corrugated pipe, as shown in fig. 5, that is, the variable cross-section steel pipe 4 is a cylindrical corrugated pipe, an inward concave section of the corrugated pipe is used as a weakened cross-section 41, and an outward convex section of the corrugated pipe is used as a reinforced cross-section 42.
The shape of the perfusion hole 12 is rectangular or circular.
The upper end and the lower end of the variable cross-section steel pipe 4 are fixedly connected with the upper connecting plate 1 and the lower connecting plate 2 respectively in a welding mode.
Principle of the invention
When the support disclosed by the invention is under the action of pressure, the pressure of an upper building is borne by the concrete 5 filled in the support, and meanwhile, the peripheral variable cross-section steel pipes 4 have a certain constraint effect on the concrete 5, so that the concrete 5 is in a three-dimensional compression state, the compression resistance of the concrete 5 is obviously improved, and the support disclosed by the invention is ensured to have larger vertical bearing capacity.
When the support bears horizontal shearing force, the horizontal rigidity of the weakened section 41 of the variable-section steel pipe 4 is smaller than that of the reinforced section 42, and the horizontal displacement of the structure is mainly concentrated at the weakened section 41 under the action of an earthquake, so that the weakened section 41 generates larger horizontal displacement, the natural vibration period of the structure is prolonged, and the earthquake response of an upper building can be reduced through large deformation of the support.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a shear yield type steel pipe concrete vibration isolation support, includes upper junction plate (1) and lower connecting plate (2), upper junction plate (1) is connected with upper portion building through high strength bolt (3), lower connecting plate (2) are connected with lower part building foundation through bolt hole (21) and corresponding bolt, its characterized in that, be equipped with variable cross section steel pipe (4) between upper junction plate (1) and lower connecting plate (2), it has filling hole (12) to reserve on upper junction plate (1), it has concrete (5) to fill through filling hole (12) in variable cross section steel pipe (4) inside.
2. The shear yield type steel pipe concrete vibration isolation mount according to claim 1, wherein the variable cross-section steel pipe (4) is composed of a plurality of weakened cross-section sections (41) and a plurality of reinforced cross-section sections (42) stacked and connected so that the weakened cross-section sections (41) are plastically deformed to provide horizontal displacement.
3. The shear yield type steel pipe concrete vibration isolation bearing according to claim 2, wherein the reinforced section sections (42) and the weakened section sections (41) of the variable section steel pipe (4) are alternately stacked and connected to form a trapezoid or a wave section.
4. The shear yield type steel pipe concrete vibration isolation support according to claim 3, wherein the variable cross-section steel pipe (4) is a rectangular or cylindrical corrugated pipe, an inner concave section of the corrugated pipe is used as a weakening cross-section (41), and an outer convex section of the corrugated pipe is used as a reinforcing cross-section (42).
5. The shear yielding concrete filled steel tube vibration isolating mount according to claim 1, wherein the shape of the pouring hole (12) is rectangular or circular.
6. The shear yield type steel pipe concrete vibration isolation support according to claim 1, wherein the upper end and the lower end of the variable cross-section steel pipe (4) are fixedly connected with the upper connecting plate (1) and the lower connecting plate (2) respectively through welding.
CN202010046428.5A 2020-01-16 2020-01-16 Shear yield type steel pipe concrete vibration isolation support Pending CN111119343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010046428.5A CN111119343A (en) 2020-01-16 2020-01-16 Shear yield type steel pipe concrete vibration isolation support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010046428.5A CN111119343A (en) 2020-01-16 2020-01-16 Shear yield type steel pipe concrete vibration isolation support

Publications (1)

Publication Number Publication Date
CN111119343A true CN111119343A (en) 2020-05-08

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ID=70489503

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010046428.5A Pending CN111119343A (en) 2020-01-16 2020-01-16 Shear yield type steel pipe concrete vibration isolation support

Country Status (1)

Country Link
CN (1) CN111119343A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113374108A (en) * 2021-07-07 2021-09-10 北京市建筑设计研究院有限公司 Metal composite energy dissipater with double-order yield point for seismic isolation layer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113374108A (en) * 2021-07-07 2021-09-10 北京市建筑设计研究院有限公司 Metal composite energy dissipater with double-order yield point for seismic isolation layer

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