CN205894347U

CN205894347U - Vertically weaken pole formula bucking restraint power consumption device

Info

Publication number: CN205894347U
Application number: CN201620862601.8U
Authority: CN
Inventors: 郭正兴; 管东芝
Original assignee: Southeast University
Current assignee: Southeast University
Priority date: 2016-08-09
Filing date: 2016-08-09
Publication date: 2017-01-18
Anticipated expiration: 2026-08-09

Abstract

The utility model discloses a vertically weaken pole formula bucking restraint power consumption device, including power consumption core, restraint sleeve, the power consumption core adopts common round steel stick or reinforcing bar processing, and both ends be the straight thread section, and the middle part is the power consumption section, and a power consumption section position prolongs length direction and weakens the cross -section, and the part that power consumption section cross section weakens is the linearity, keeps the former circular cross section's of part segmental arc simultaneously, and a power consumption section shape of cross section is axial symmetry or central symmetry, and difference according to weakening position and size has forms such as unilateral formula, bilateral formula, trilateral formula, restraint cover barrel casing is in the power consumption period number of power consumption core puts. The utility model discloses a bucking restraint principle forms small -size power consumption device, need not retrain the filler material between sleeve pipe and the power consumption core simultaneously, and processing is simple and easy, and the stable performance has comparatively extensive application prospect.

Description

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

Technical field

This utility model is related to a kind of longitudinally weakening buckling-restrained energy-dissipating device of circular rod type, belongs 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 supporting member and energy-consuming parts each detached system of function of structure.Energy-consuming parts are as overall knot The electric fuse of structure, plays a part earthquake energy, ensures structure safety, reduces 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 complicated, manufactures, installs and replaces Change and more bother, cost can be in any more, have impact on the practical application of energy-dissipating device, urgent need is 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, the high cost installed and replace, and is unfavorable for widely used.

Based on the miniaturization energy-dissipating device stable performance of buckling-restrained principle, make and quick for installation, low cost, have relatively Good application prospect, but the Miniature energy-dissipation device being currently based on buckling-restrained principle generally requires in power consumption core and buckling-restrained Fill Binder Materials between part, affected by Binder Materials, the hysteresis loop of tension and compression is asymmetric it is impossible to formation is moderately good Energy dissipation capacity.

Utility model content

The purpose of this utility model is to propose a kind of longitudinally weakening buckling-restrained energy-dissipating device of circular rod type, is formed to be based on and bends The miniaturization energy-dissipating device of bent constraint principles, is easy to make and installs, reduces cost；Between power consumption core and buckling-restrained part Without packing material, tension and compression hysteresis loop is symmetrical, and stable performance has wider application prospect.

The technical solution adopted in the utility model is: a kind of longitudinally weakening buckling-restrained energy-dissipating device of circular rod type, including consumption Energy core and about collar cylinder；

Described power consumption core is formed using smooth bar rod or steel bar meter；

Described power consumption core two ends form straight thread section by machining, in order to be connected among overall structure；

It is power consumption section in the middle part of described power consumption core, power consumption section position elongatedness direction pair cross-section is weakened so that being consumed energy Duan Qiangdu is less than the intensity that described power consumption core beam-ends connects straight thread section, and it is partly linearly that power consumption section cross section weakens, So that weakening, manufacturing procedure is very simple and efficient, the segmental arc in power consumption section cross section member-retaining portion raw steel rod section simultaneously, in consumption Can rod pressurized generation flexing when, this segmental arc part and constraint barrel contacts, produce lateral confinement power so that power consumption section occur high 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 itself bending deformation；

Described power consumption core straight thread section intensity is more than power consumption section intensity it is ensured that power consumption section is when being consumed 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.

Preferably, according to the difference weakening position and size, there is unilateral, double described power consumption core power consumption section cross section Three kinds of forms of formula in formula, three.

Preferably, described constraint length sleeve is more than the power consumption section of described power consumption core, less than described power consumption core two The distance between end straight thread section is it is ensured that described power consumption core can effectively be constrained when pressurized；The power consumption section of power consumption core Length is specially designed according to structural behaviour demand.

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) this utility model forms miniaturization energy-dissipating device using surrender constraint principles, can be used in multiple building structure, Or it is installed on component surface, or be embedded in advance in concrete, have wide range of applications, reduce energy-dissipating device simultaneously and overall structure is carried The impact of ability, advantageously forms " function separation system ".

(2) this utility model makes power consumption core using smooth bar rod or steel bar meter, and pair cross-section carries out weakening and adds Work, makes simple, confinement sleeve easily obtains, effectively reduces the cost of energy-dissipating device.

(3) this utility model need not consume energy core and packing material about between collar cylinder, simplifies procedure of processing further, and Tensile and compressive property is not affected by packing material, and hysteresis loop is symmetrical, stable performance, be easy to using this device all kinds of structural analyses and Design, has preferable application prospect.

Brief description

Fig. 1 is organigram of the present utility model；

Fig. 2 is unilateral schematic diagram for the cross section of this utility model power consumption core；

Fig. 3 is Double-edge type schematic diagram for the cross section of this utility model power consumption core；

Fig. 4 is three side formula schematic diagrams for the cross section of this utility model power consumption core.

Specific embodiment

With reference to the accompanying drawings and detailed description this utility model is described further.

As shown in Figure 1: a kind of buckling-restrained energy-dissipating device of circular rod type that longitudinally weakens is by constraining sleeve 1 and 2 groups of core of power consumption Become；Power consumption core 2 is formed by machining using smooth bar rod or reinforcing bar, 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 be more than consumption by cold working mode Can section intensity；For power consumption section in the middle of power consumption core 1, power consumption section position elongatedness direction pair cross-section is weakened, and weakens section and protects Stay the segmental arc in part raw steel rod section；The power consumption section section of power consumption core 1 axisymmetricly or centrosymmetry, mainly has monolateral The forms such as formula, Double-edge type, three side formulas, as in Figure 2-4.

Constraint sleeve 1 is made using cylindrical steel tube, 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 power consumption the distance between core 2 two ends straight thread section；The power consumption section of 1 set of power consumption core 2 of constraint sleeve Put.

Above in association with accompanying drawing, embodiment of the present utility model is described in detail, but this utility model is not limited to institute The embodiment of description.For those of ordinary skill in the art, in the scope of principle of the present utility model and technological thought Interior, multiple changes, modification, replacement and deformation are carried out to these embodiments and still falls within protection domain of the present utility model.

Claims

1. a kind of longitudinally weaken the buckling-restrained energy-dissipating device of circular rod type it is characterised in that: include power consumption core and about collar cylinder；

It is power consumption section in the middle part of described power consumption core, power consumption section position elongatedness direction pair cross-section is weakened so that the Duan Qiang that consumed energy Degree connects the intensity of straight thread section less than described power consumption core beam-ends, and it is partly linearly, simultaneously that power consumption section cross section weakens The segmental arc in member-retaining portion raw steel rod 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 in axle pair Claim or centrosymmetry.

2. 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 consumption Can there are unilateral, Double-edge type, three kinds of forms of three side formulas in core power consumption section cross section.

3. 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 described power consumption core two ends straight thread section.

4. 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.