CN105507133A - Buckling restrained brace of steel pipe filling concrete type flat plate core material with holes - Google Patents

Buckling restrained brace of steel pipe filling concrete type flat plate core material with holes Download PDF

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Publication number
CN105507133A
CN105507133A CN201510874613.2A CN201510874613A CN105507133A CN 105507133 A CN105507133 A CN 105507133A CN 201510874613 A CN201510874613 A CN 201510874613A CN 105507133 A CN105507133 A CN 105507133A
Authority
CN
China
Prior art keywords
steel pipe
core
restrained brace
buckling restrained
concrete type
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
CN201510874613.2A
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Chinese (zh)
Inventor
贾良玖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tongji University
Original Assignee
Tongji University
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 Tongji University filed Critical Tongji University
Priority to CN201510874613.2A priority Critical patent/CN105507133A/en
Publication of CN105507133A publication Critical patent/CN105507133A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges

Abstract

The invention relates to a buckling restrained brace of a steel pipe filling concrete type flat plate core material with holes. The buckling restrained brace comprises the core material, filling mortar and an outer covering steel pipe which are sequentially arranged from inside to outside, an anti-sliding block is arranged in the middle of the core material, a groove closely matched with the anti-sliding block is formed in the middle of the filling mortar, and the groups of holes are formed in the core material. Compared with the prior art, the buckling restrained brace has the advantages of being high in deformation supporting capacity, light in mass, large in post-buckling rigidity and wide in application range.

Description

A kind of steel pipe fill concrete type plate with opening core buckling restrained brace
Technical field
The present invention relates to the seismic design field of the structure that builds a bridge, especially relate to a kind of steel pipe fill concrete type plate with opening core buckling restrained brace.
Background technology
The core cross section of existing buckling restrained brace is mostly alongst identical, destroy and often occur in the commissure of end stiffener rib or the non-slipping block end of centre, cause support maximum distortion ability less (mean strain is lower than 3%), or need price high but the good Low Yield Point Steel of ductility to improve the ductility of support.Along with taking place frequently of global super large earthquake in recent years, the antidetonation of structure is also more and more higher to the requirement supporting maximum deformation quantity and its extremely low cycle fatigue performance, how to ensure that support still can normally work after can standing the attack of repeatedly violent earthquake, to ensure it without the need to changing in the total life cycle of work, relevant design concept also more and more comes into one's own.
Summary of the invention
Object of the present invention be exactly provide that a kind of supporting deformation ability is large to overcome defect that above-mentioned prior art exists, quality is light, the steel pipe fill concrete type plate with opening core buckling restrained brace of large, the applied range of rigidity after flexing.
Object of the present invention can be achieved through the following technical solutions:
A kind of steel pipe fill concrete type plate with opening core buckling restrained brace, comprise the core, filling mortar and the outside steel pipe that set gradually from inside to outside, the middle part of described core is provided with non-slipping block, be provided with non-slipping block close-fitting groove in the middle part of described filling mortar, described core be also provided with and organize perforate more.
Described core comprises surrender section and is arranged on the non-compliant section at surrender section two ends, and described many groups perforate is arranged in surrender section, and described non-compliant section is provided with core end stiffener rib.
Described core surrender section is sticked with or without adhesives.
Often organize perforate and all comprise multiple perforate be arranged side by side, and the shape of perforate is consistent, interval is equal.
The shape of described perforate comprises ellipse, rhombus and circle.
The 0.2-1 being spaced apart hole length between described multiple perforates doubly.
Gap is provided with between the two ends of described filling mortar and non-compliant section.
Compared with prior art, the present invention has the following advantages:
One, supporting deformation ability is large: the present invention adopts the form of non-slipping block and groove fit guarantee core and fill relative motion less between mortar, and adopt the core of middle part open-celled structure, under the effect of earthquake large deformation, core tapping generation shearing deformation replaces the axial deformation supported, and increases the largest variable of support of the present invention.
Two, quality is light: because the present invention adopts the board-like core of central aperture, obtains weakening in surrender section, can not need to amplify, thus the steel using amount of Nodes is declined, reduce than general supported weight in Nodes cross section.
Three, after flexing, rigidity is large: the perforate size of core of the present invention is identical with the distance between hole, makes core in perforate section uniform force, better can absorb energy, strengthens shock resistance.
Four, applied range: the number of openings of core of the present invention and position size all can change with different antidetonation demands, can adapt to different anti-seismic occasion, applied range.
Accompanying drawing explanation
Fig. 1 is single ten elliptical aperture structure sectional views in embodiment.
Fig. 2 is single ten elliptical aperture structural representations in embodiment.
Wherein, 1, core, 2, non-cohesive material, 3, fill mortar, 4, outside steel pipe, 5, non-slipping block, 6, perforate, 7, core end stiffener rib.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment:
As depicted in figs. 1 and 2, figure is single ten pore structure cores, non-slipping block in this example in the middle part of core and corresponding draw-in groove of filling mortar are the rigid motions for limiting between core and concrete, in order to reach larger deformability, the consistent size in each hole, and the width of divided each little short column is the same after guarantee perforate, to reach identical cripling bearing capacity.
Assembling process is as follows: the first prefabricated steel pipe fill concrete with draw-in groove, is attached to by non-cohesive material on the core of band perforate, then assembles core and has built concrete outside steel pipe.
The present invention includes the core 1 of steel, non-cohesive material 2, outside steel pipe 4 and fill mortar 3.Wherein, core 1 is the steel plate of perforate, the mutual rigid motion of core 1, mortar and outside steel pipe 4 is limited by the interaction of filling the draw-in groove of mortar 3 and the non-slipping block of core 1, finally can produce necking deformation at the tapping of core 1, thus reach the effect improving component deformability under the hysteresis such as earthquake load.In addition, because core 1 obtains weakening in center, therefore Nodes can not need to amplify, thus the steel using amount of Nodes is declined.

Claims (7)

1. a steel pipe fill concrete type plate with opening core buckling restrained brace, comprise set gradually from inside to outside core (1), fill mortar (3) and outside steel pipe (4), it is characterized in that, the middle part of described core (1) is provided with non-slipping block (5), described filling mortar (3) middle part is provided with and non-slipping block (5) close-fitting groove, described core (1) is also provided with and organizes perforate more.
2. a kind of steel pipe fill concrete type plate with opening core buckling restrained brace according to claim 1, it is characterized in that, described core (1) comprises surrender section and is arranged on the non-compliant section at surrender section two ends, described many groups perforate is arranged in surrender section, and described non-compliant section is provided with core end stiffener rib (7).
3. a kind of steel pipe fill concrete type plate with opening core buckling restrained brace according to claim 2, is characterized in that, described core (1) surrender section is sticked with or without adhesives (2).
4. a kind of steel pipe fill concrete type plate with opening core buckling restrained brace according to claim 2, it is characterized in that, often organize perforate and all comprise multiple perforate (6) be arranged side by side, and the shape of perforate (6) is consistent, interval is equal.
5. a kind of steel pipe fill concrete type plate with opening core buckling restrained brace according to claim 4, it is characterized in that, the shape of described perforate (6) comprises ellipse, rhombus and circle.
6. a kind of steel pipe fill concrete type plate with opening core buckling restrained brace according to claim 4, is characterized in that, the 0.2-1 being spaced apart hole length between described multiple perforates (6) doubly.
7. a kind of steel pipe fill concrete type plate with opening core buckling restrained brace according to claim 2, is characterized in that, be provided with gap between the two ends of described filling mortar (3) and non-compliant section.
CN201510874613.2A 2015-12-02 2015-12-02 Buckling restrained brace of steel pipe filling concrete type flat plate core material with holes Pending CN105507133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510874613.2A CN105507133A (en) 2015-12-02 2015-12-02 Buckling restrained brace of steel pipe filling concrete type flat plate core material with holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510874613.2A CN105507133A (en) 2015-12-02 2015-12-02 Buckling restrained brace of steel pipe filling concrete type flat plate core material with holes

Publications (1)

Publication Number Publication Date
CN105507133A true CN105507133A (en) 2016-04-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510874613.2A Pending CN105507133A (en) 2015-12-02 2015-12-02 Buckling restrained brace of steel pipe filling concrete type flat plate core material with holes

Country Status (1)

Country Link
CN (1) CN105507133A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106088766A (en) * 2016-06-24 2016-11-09 同济大学 A kind of steel pipe fill concrete outer-enwraped type shearing-type buckling restrained brace
CN107460966A (en) * 2017-08-09 2017-12-12 同济大学 A kind of low more yield point buckling restrained braces of residual deformation of novel steel tube fill concrete type

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE538792A (en) * 1954-06-09 1955-06-30 Verdier, R. SCAFFOLDING WITH EXTENSIBLE AND ADJUSTABLE UPRIGHTS FOR QUICK ASSEMBLY AND DISASSEMBLY INSIDE BUILDINGS
CN101105053A (en) * 2007-07-10 2008-01-16 中国建筑科学研究院 Double-layer bushing straight-line flexuosity restriction support with transverse diaphragm
CN201078050Y (en) * 2007-07-10 2008-06-25 南京丹普科技工程有限公司 Flection restrict dissipating energy support with gap and antiskid hump
CN201809994U (en) * 2010-04-02 2011-04-27 陈云 Super-elastic buckling-restrained energy-dissipation brace
US20110131893A1 (en) * 2009-12-04 2011-06-09 Min Chen Adjustable jack post
GB2479203A (en) * 2010-04-01 2011-10-05 James Lawrence Weston Stile with telescopic sections having spacer studs

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE538792A (en) * 1954-06-09 1955-06-30 Verdier, R. SCAFFOLDING WITH EXTENSIBLE AND ADJUSTABLE UPRIGHTS FOR QUICK ASSEMBLY AND DISASSEMBLY INSIDE BUILDINGS
CN101105053A (en) * 2007-07-10 2008-01-16 中国建筑科学研究院 Double-layer bushing straight-line flexuosity restriction support with transverse diaphragm
CN201078050Y (en) * 2007-07-10 2008-06-25 南京丹普科技工程有限公司 Flection restrict dissipating energy support with gap and antiskid hump
US20110131893A1 (en) * 2009-12-04 2011-06-09 Min Chen Adjustable jack post
GB2479203A (en) * 2010-04-01 2011-10-05 James Lawrence Weston Stile with telescopic sections having spacer studs
CN201809994U (en) * 2010-04-02 2011-04-27 陈云 Super-elastic buckling-restrained energy-dissipation brace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106088766A (en) * 2016-06-24 2016-11-09 同济大学 A kind of steel pipe fill concrete outer-enwraped type shearing-type buckling restrained brace
CN106088766B (en) * 2016-06-24 2018-08-24 同济大学 A kind of steel pipe fill concrete outer-enwraped type shearing-type buckling restrained brace
CN107460966A (en) * 2017-08-09 2017-12-12 同济大学 A kind of low more yield point buckling restrained braces of residual deformation of novel steel tube fill concrete type

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Application publication date: 20160420

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