CN106088383A - A kind of longitudinally weakening buckling-restrained energy-dissipating device of circular rod type - Google Patents

A kind of longitudinally weakening buckling-restrained energy-dissipating device of circular rod type Download PDF

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Publication number
CN106088383A
CN106088383A CN201610645166.8A CN201610645166A CN106088383A CN 106088383 A CN106088383 A CN 106088383A CN 201610645166 A CN201610645166 A CN 201610645166A CN 106088383 A CN106088383 A CN 106088383A
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China
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power consumption
core
buckling
dissipating
energy
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CN201610645166.8A
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CN106088383B (en
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郭正兴
管东芝
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Southeast University
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Southeast University
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    • 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 invention discloses a kind of longitudinally weakening buckling-restrained energy-dissipating device of circular rod type, including power consumption core, constraint sleeve;Described power consumption core uses smooth bar rod or steel bar meter, two ends are straight thread section, middle part is power consumption section, power consumption elongatedness direction, section position pair cross-section weakens, the part that power consumption section cross section weakens is linearly, the segmental arc of the former circular cross-section of member-retaining portion simultaneously, and power consumption section shape of cross section is axisymmetricly or centrosymmetry, according to weakening position and the difference of size, there are the forms such as unilateral, Double-edge type, three limit formulas;Described constraint sleeve is enclosed within the power consumption fragment position of described power consumption core.The present invention uses buckling-restrained principle to form Miniature energy-dissipation device, is not required to the packing material between confinement sleeve and power consumption core simultaneously, and processing is simple, and stable performance has relatively broad application prospect.

Description

A kind of longitudinally weakening buckling-restrained energy-dissipating device of circular rod type
Technical field
The present invention relates to a kind of longitudinally weakening buckling-restrained energy-dissipating device of circular rod type, belong to building engineering field.
Background technology
In recent years, the Seismic Design Thought of " based on performance " gradually tends to main flow, and " function separation system " is progressively promoted. " function separation system " is the system that the supporting member of structure separates with energy-consuming parts each function.Energy-consuming parts is tied as entirety The electric fuse of structure, plays a part earthquake energy, ensures structural safety, reduction component damage, be " function separation system " The very important ingredient of structure.
At present, the research and development of all kinds of energy-dissipating devices emerges in an endless stream, but often constructs complexity, manufactures, installs and replaces Changing and more bother, cost can be in any more, have impact on the actual application of energy-dissipating device, be badly in need of easily manufactured, replace simple and performance Stable energy-dissipating device.
Buckling-restrained principle can obtain relatively stable performance and higher stock utilization, and buckling restrained brace obtains More research and certain application, but buckling restrained brace as large-scale component to performances such as overall structure rigidity, deformation Impact is big, and the high cost installed and replace is unfavorable for widely used.
Miniaturization energy-dissipating device stable performance based on buckling-restrained principle, makes and quick for installation, low cost, has relatively Good application prospect, but the Miniature energy-dissipation device being currently based on buckling-restrained principle generally requires at power consumption core and buckling-restrained Filling Binder Materials between parts, affected by Binder Materials, the hysteresis loop of tension and compression is asymmetric, it is impossible to formed moderately good Energy dissipation capacity.
Summary of the invention
It is an object of the invention to propose a kind of longitudinally weakening buckling-restrained energy-dissipating device of circular rod type, formed based on flexing about The miniaturization energy-dissipating device of Shu Yuanli, it is simple to make and install, reduces cost;Power consumption core and buckling-restrained parts between without Packing material, tension and compression hysteresis loop is symmetrical, and stable performance has wider application prospect.
The technical solution used in the present invention is: a kind of longitudinally weakening buckling-restrained energy-dissipating device of circular rod type, including power consumption core Material and about collar cylinder;
Described power consumption core uses smooth bar rod or steel bar meter to form;
Described power consumption core two ends form straight thread section by machining, in order to be connected among overall structure;
For power consumption section in the middle part of described power consumption core, power consumption elongatedness direction, section position pair cross-section weakens so that power consumption Duan Qiangdu connects the intensity of straight thread section less than described power consumption core beam-ends, and the part that power consumption section cross section weakens is linearly, Making to weaken manufacturing procedure the most simple and efficient, the segmental arc in section cross section member-retaining portion raw steel rod cross section of simultaneously consuming energy, in consumption During energy rod pressurized generation flexing, this segmental arc part and constraint barrel contacts, produce lateral confinement power so that the section that consumes energy occurs height Rank flexing;Described constraint sleeve is enclosed within the power consumption fragment position of described power consumption core;When described power consumption core compressive buckling occurs, Segmental arc part and described constraint barrel contacts, limit self bending deformation;
Described power consumption core straight thread section intensity is more than power consumption section intensity, it is ensured that when power consumption section consumes energy, the straight spiral shell in end Stricture of vagina section keeps good;Described power consumption core power consumption section shape of cross section is axisymmetricly or centrosymmetry.
As preferably, according to weakening position and the difference of size, described power consumption core power consumption section cross section has unilateral, double Limit formula, three kinds of forms of three limit formulas.
As preferably, described constraint length sleeve is more than the power consumption section of described power consumption core, less than described power consumption core two Distance between end straight thread section, it is ensured that described power consumption core can effectively be constrained when pressurized;The power consumption section of power consumption core Length carries out specialized designs according to structural behaviour demand.
As preferably, described constraint sleeve diameter is more than described power consumption core diameter 2mm so that described power consumption core can Produce certain surrender, but by operative constraint, the hysteretic energy performance symmetrical and stable to obtain tension and compression.
Beneficial effect:
(1) present invention utilizes surrender constraint principles to form miniaturization energy-dissipating device, can be used in multiple building structure, or peace It is loaded on component surface, or is embedded in advance in concrete, have wide range of applications, reduce energy-dissipating device to overall structure bearing capacity simultaneously Impact, advantageously form " function separation system ".
(2) present invention uses smooth bar rod or steel bar meter to make power consumption core, and pair cross-section carries out weakening processing, system Making simple, confinement sleeve easily obtains, and effectively reduces the cost of energy-dissipating device.
(3) present invention is without core and the about packing material between collar cylinder of consuming energy, and simplifies procedure of processing, and tension and compression further Performance is not affected by packing material, and hysteresis loop is symmetrical, stable performance, it is simple to use all kinds of structural analyses of this device and set Meter, has preferable application prospect.
Accompanying drawing explanation
Fig. 1 is the organigram of the present invention;
Fig. 2 be the consume energy cross section of core of the present invention be unilateral schematic diagram;
Fig. 3 be the consume energy cross section of core of the present invention be Double-edge type schematic diagram;
Fig. 4 be the consume energy cross section of core of the present invention be three limit formula schematic diagrams.
Detailed description of the invention
The present invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
As shown in Figure 1: a kind of buckling-restrained energy-dissipating device of circular rod type that longitudinally weakens is by retraining sleeve 1 and power consumption core 2 groups Become;Power consumption core 2 uses smooth bar rod or reinforcing bar to be formed by machining, is made up of power consumption section and straight thread section;Consumption Can core 2 two ends be straight thread section, in order to be connected among structure, make straight thread section intensity more than consumption by cold working mode Can section intensity;For power consumption section in the middle of power consumption core 1, power consumption elongatedness direction, section position pair cross-section weakens, and weakens cross section and protects Stay the segmental arc in part raw steel rod cross section;The power consumption section cross section of power consumption core 1 axisymmetricly or centrosymmetry, mainly has monolateral The forms such as formula, Double-edge type, three limit formulas, as in Figure 2-4.
Constraint sleeve 1 uses cylindrical steel tube to make, and internal diameter is more than the diameter 2mm of power consumption core 2, and length is more than power consumption core 2 Power consumption section, less than the distance between power consumption core 2 two ends straight thread section;The power consumption section of constraint sleeve 1 set power consumption core 2 Put.
Above in association with accompanying drawing, embodiments of the present invention are described in detail, but the present invention is not limited to described reality Execute mode.For those of ordinary skill in the art, in the range of the principle and technological thought of the present invention, these are implemented Mode carries out multiple change, revises, replaces and deformation still falls within protection scope of the present invention.

Claims (4)

1. one kind longitudinally weakens the buckling-restrained energy-dissipating device of circular rod type, it is characterised in that: include consuming energy core and about collar cylinder;
Described power consumption core uses smooth bar rod or steel bar meter to form;
Described power consumption core two ends form straight thread section by machining, in order to be connected among overall structure;
For power consumption section in the middle part of described power consumption core, power consumption elongatedness direction, section position pair cross-section weakens so that power consumption Duan Qiang Degree connects the intensity of straight thread section less than described power consumption core beam-ends, and the part that power consumption section cross section weakens is linearly, simultaneously The segmental arc in member-retaining portion raw steel rod cross section;Described constraint sleeve is enclosed within the power consumption fragment position of described power consumption core;
Described power consumption core straight thread section intensity is more than power consumption section intensity;Described power consumption core power consumption section shape of cross section is axle pair Claim or centrosymmetry.
A kind of longitudinally weakening buckling-restrained energy-dissipating device of circular rod type the most according to claim 1, it is characterised in that: described consumption Can there be unilateral, Double-edge type, three kinds of forms of three limit formulas by core power consumption section cross section.
The most according to claim 1 a kind of longitudinally weaken the buckling-restrained energy-dissipating device of circular rod type, it is characterised in that: described about Bundle length sleeve is more than the power consumption section of described power consumption core, less than the distance between the straight thread section of described power consumption core two ends.
The most according to claim 1 a kind of longitudinally weaken the buckling-restrained energy-dissipating device of circular rod type, it is characterised in that: described about Bundle sleeve diameter is more than described power consumption core diameter 2mm.
CN201610645166.8A 2016-08-09 2016-08-09 A kind of longitudinal weakening buckling-restrained energy-consuming device of circular rod type Active CN106088383B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106760015A (en) * 2016-12-22 2017-05-31 清华大学 Power consumption rod iron and the concrete energy-dissipation structure with it

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JPH07229204A (en) * 1994-02-17 1995-08-29 Nippon Steel Corp Buckling confined braking member
CN203755483U (en) * 2013-12-30 2014-08-06 河南城建学院 Buckling energy consumption-preventing support for built-in core material pipe of double-layer steel sleeve
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CN103981967A (en) * 2014-04-11 2014-08-13 北京工业大学 Assembled type steel structure frame single-plate self-resetting buckling-restrained brace
CN204326290U (en) * 2014-11-24 2015-05-13 沈阳建筑大学 A kind of hourglass shape mild steel barred body sinker
CN104674975A (en) * 2015-03-01 2015-06-03 北京工业大学 Frictional energy dissipation type buckling-restrained brace
CN105735504A (en) * 2016-03-03 2016-07-06 东南大学 Rectangular bamboo joint buckling restrained brace
CN205894347U (en) * 2016-08-09 2017-01-18 东南大学 Vertically weaken pole formula bucking restraint power consumption device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106760015A (en) * 2016-12-22 2017-05-31 清华大学 Power consumption rod iron and the concrete energy-dissipation structure with it
CN106760015B (en) * 2016-12-22 2020-05-05 清华大学 Energy consumption rod iron and concrete energy consumption structure with same

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