CN104929277A - Earthquake-proof wall and construction method thereof - Google Patents

Earthquake-proof wall and construction method thereof Download PDF

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Publication number
CN104929277A
CN104929277A CN201510397630.1A CN201510397630A CN104929277A CN 104929277 A CN104929277 A CN 104929277A CN 201510397630 A CN201510397630 A CN 201510397630A CN 104929277 A CN104929277 A CN 104929277A
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China
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spring
plate
core stress
fixed
stress unit
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CN201510397630.1A
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CN104929277B (en
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刘春阳
王玉镯
杜修力
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Shandong Jianzhu University
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Shandong Jianzhu University
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Abstract

The invention discloses an earthquake-proof wall and a construction method thereof. According to the earthquake-proof wall, a rigidity enhancement structure is arranged between each end of anti-bending supports and a corner adjacent to the end on a square framework, wherein each rigidity enhancement structure comprises a first spring, a second spring, a first rigidity regulation plate which is fixed on a column of the corresponding corner and used for limiting the displacement of the first spring and a second rigidity regulation plate which is fixed on a beam of the corresponding corner and used for limiting the displacement of the second spring. The construction method of the earthquake-proof wall comprises the following steps that 1, the square framework is constructed, and the anti-bending supports are made; 2, the square framework and the anti-bending supports are connected. According to the earthquake-proof wall and the construction method thereof, when medium and small earthquakes occur, the existing anti-bending supports are mainly stressed and play a main energy consuming function; when a large earthquake occurs, the function of the rigidity enhancement structures is played, the structural rigidity is enhanced, and the structural response is reduced.

Description

A kind of antidetonation body of wall and construction method thereof
Technical field
The present invention relates to a kind of antidetonation body of wall and construction method thereof.
Background technology
China is one of land earthquake-prone countries, particularly in recent years, violent earthquake frequently occurs, and the earthquake damage to building that earthquake causes is also more and more serious, and the casualties that minimizing structural deterioration brings and economic loss are the responsibilities and obligations of Structural Engineering technician origin.The frequent generation of earthquake disaster and people, to the raising of the lives and properties requirements of support, have higher requirement to building aseismicity level.In high level and super highrise building, some additional member are set usually, such as anti-buckling support, increase the rigidity of structure and overall damping, play earthquake energy, improve the object of seismic seeurity.Local and overall collapse during for preventing bracing members pressurized, strengthen low cycle fatigue property, and some scholars adopts the method for adding external constraint.Usual employing concrete filled steel tube or steel concrete are as external constraint, be called anti-buckling support, Japanese scholars improves existing anti-buckling support structure, between external constraint and steel core, non-cohesive material is set, and adopt low surrender rigidity, high ductile material, as core bracing members, is widely used in earthquake resistant engineering as a kind of displacement type damper.Anti-buckling support is made up of core stress unit, external constraint unit usually.Under violent earthquake effect, when the stressed steel of core enter the plasticity duty after surrender, relative to the elastic working stage, increase the effect of the rigidity of structure and not obvious, limit the further performance of energy dissipation capacity.
Summary of the invention
The technical problem to be solved in the present invention is: provide the antidetonation body of wall that a kind of shock resistance is good, and provides a kind of construction method of aforementioned antidetonation body of wall.
In order to solve the problems of the technologies described above, the present invention includes the quadra be made up of beam and column, anti-buckling support is connected with in two of quadra relative bights, anti-buckling support comprises core stress unit, external constraint unit and separation layer unit, the two ends of core stress unit are connected with the summit in two bights respectively, it is characterized in that: the bight of often holding and quadra being adjacent of described anti-buckling support is provided with rigidity and strengthens structure, each rigidity strengthens structure and includes the first spring, second spring, be fixed on the post in corresponding bight for limiting the first stiffness tuning plate of the first spring displacement and being fixed on the second stiffness tuning plate for limiting the second spring displacement on the beam in corresponding bight, on first spring and the second spring, one end of contiguous external constraint unit is fixed in core stress unit, first spring and the second spring other end are freely, the telescopic direction of the first spring and the second spring in core stress unit axially, when anti-buckling support is in free state, between first stiffness tuning plate and the free end of the first spring, there is gap, between second stiffness tuning plate and the free end of the second spring, there is gap.
In order to improve the harmony and stability that wall stiffness strengthens, described core stress unit is cross section is criss-cross shaped steel, and each rigidity strengthens the first spring of structure and the second spring and is separately positioned in the relative angle of two of core stress unit.
For the ease of mounting spring, the first described spring is bolted in core stress unit by the first spring dead plate and first, the plate body of the first spring dead plate to be cross section be L shape, one end of first spring is fixed on a face of the first spring dead plate, the another side of the first spring dead plate is bolted on the frange plate of core stress unit by first, and the second spring adopts the mode identical with the first spring to be fixed in core stress unit.
Strengthen to realize progressively rigidity, the first described spring and the second spring all adopt inside and outside double-layer spring, when anti-buckling support is in free state, have gap between two-layer spring, the free end of two-layer spring to corresponding rigidity reinforcement plate gap not etc.
The construction method of antidetonation body of wall of the present invention, comprises the steps: that (1) builds quadra, makes anti-buckling support; (2) and by the first spring and the second spring be fixed in anti-core stress unit of bending support; (3) two ends of core stress unit are fixed on the summit in quadra two bights; (4) the first stiffness tuning plate is installed on post, beam is installed the second stiffness tuning plate.
The invention has the beneficial effects as follows:
(1) when middle-size and small-size earthquake occurs, mainly stressed based on existing anti-buckling support, play main power consumption effect; When large-scale earthquake occurs, play the effect that rigidity strengthens structure, increase the rigidity of structure, reduce the response of structure.
(2) the present invention utilizes the relative deformation of anti-buckling supporting core stress unit and agent structure poor, plays the effect of parallel springs rigidity adjustment system.Can according to the shock attenuation needs under different level geological process, the spring in appropriate design parallel springs system and the width in gap between stiffness tuning plate, make rigidity adjustment system play stiffness tuning, limit function according to the requirement in different stressed stages.
(3) invention simple structure, difficulty of construction be little, have very high superiority of effectiveness, is adapted at extensively promoting in engineering.
(4) construction method of the present invention is easy to operation, and speed of application is fast, and the duration is short.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A partial enlarged drawing of Fig. 1;
Fig. 3 is the structural representation that part 2 and rigidity strengthen structure;
Fig. 4 is the B partial enlarged drawing of Fig. 3;
Fig. 5 is that enlarged drawing is looked on the right side of Fig. 3;
In figure: 1, beam, 2, anti-buckling support, 3, post, 4, the first spring, the 5, first stiffness tuning plate, the 6, first connector, 7, the second connector, the 8, second stiffness tuning plate, the 9, second spring, 10, external constraint unit, 11, core stress unit, the 12, first spring dead plate, the 13, second spring dead plate, 14, the first bolt, the 15, second bolt.
Detailed description of the invention
A kind of antidetonation body of wall as shown in Figure 1, it comprises the quadra be made up of beam 1 and post 3, anti-buckling support 2 is connected with in two of quadra relative bights, anti-buckling support 2 comprises core stress unit 11, external constraint unit 10 and separation layer unit, core stress unit 11, existing connected mode between external constraint unit 10 and separation layer unit, is adopted to connect, the two ends dew of core stress unit 11 is put outside outside constraint element 10, and the two ends of core stress unit 11 are connected with the summit in two bights of quadra respectively.
On the basis of above-mentioned prior art, this specific embodiment has done following improvement:
The bight of often holding and quadra being adjacent of anti-buckling support 2 is provided with rigidity and strengthens structure, each rigidity strengthens structure and includes the first spring 4, second spring 9, be fixed on the post 3 in corresponding bight for the first stiffness tuning plate 5 of limiting the first spring 4 displacement and the second stiffness tuning plate 8 for limiting the second spring 9 displacement be fixed on the beam 1 in corresponding bight, first stiffness tuning plate 5 is fixed on post 3 by the first connector 6, second stiffness tuning plate 8 is fixed on post 3 by the second connector 7, on first spring 4 and the second spring 9, one end of contiguous external constraint unit 10 is fixed in core stress unit 11, first spring 4 and second spring 9 other end are freely, the telescopic direction of the first spring 4 and the second spring 9 in core stress unit 11 axially, when anti-buckling support 2 is in free state (when occurring without earthquake), between first stiffness tuning plate 5 and the free end of the first spring 4, there is gap, between second stiffness tuning plate 8 and the free end of the second spring 9, there is gap.
As shown in Figure 3 and Figure 4, core stress unit 11 adopts cross section to be criss-cross shaped steel, each rigidity strengthens the first spring 4 of structure and the second spring 9 and is separately positioned in the relative angle of two of core stress unit 11, first spring 4 is fixed in core stress unit 11 by the first spring dead plate 12 and the first bolt 14, the plate body of the first spring dead plate 12 to be cross sections be L shape, one end of first spring 4 is fixed on a face of the first spring dead plate 12, the another side of the first spring dead plate 12 is fixed on the frange plate of core stress unit 11 by the first bolt 14.Second spring 9 is fixed in core stress unit 11 by the second spring dead plate 13 and the second bolt 15, the plate body of the first spring dead plate 12 to be cross sections be L shape, one end of second spring 9 is fixed on a face of the second spring dead plate 13, and the another side of the second spring dead plate 13 is fixed on the frange plate of core stress unit 11 by the second bolt 15.
The construction method of above-mentioned antidetonation body of wall, comprises the steps: that (1) builds quadra, makes anti-buckling support 2; (2) the first spring 4 and the second spring 9 are fixed in anti-core stress unit 11 of bending support 2; (3) two ends of core stress unit 11 are fixed on the summit in quadra two bights; (4) the first stiffness tuning plate 5 is installed on post 3, beam 1 is installed the second stiffness tuning plate 8.
Operating principle of the present invention is:
Horizontal earthquake action is when body of wall, pulling force and the pressure of alternately change is produced in anti-buckling support 2, the core stress unit 11 of first anti-buckling support 2 plays main stressed function, and can enter plasticity duty, but under plastic state, the efficiency of anti-buckling support 2 integral rigidity reduces; Secondly; along with the raising of geological process intensity; after the quadra of body of wall enters plasticity duty; distortion change obviously increases, and makes the relative deformation difference between anti-buckling support 2 and quadra become large further, makes the gap smaller between spring and corresponding stiffness tuning plate; until spring is spacing by stiffness tuning plate; make rigidity strengthen structure to play a role, the contact place of core stress unit 11 two ends and quadra is protected, to strengthen the rigidity of integral wall.
In this patent, can according to the seismic behavior requirement different to body of wall, to number of springs, its length and and stiffness tuning plate between the carrying out of gap width calculate, construct according to evaluation, meet designing requirement to make body of wall.

Claims (5)

1. an antidetonation body of wall, comprise the quadra be made up of beam and column, anti-buckling support is connected with in two of quadra relative bights, anti-buckling support comprises core stress unit, external constraint unit and separation layer unit, the two ends of core stress unit are connected with the summit in two bights respectively, it is characterized in that: the bight of often holding and quadra being adjacent of described anti-buckling support is provided with rigidity and strengthens structure, each rigidity strengthens structure and includes the first spring, second spring, be fixed on the post in corresponding bight for limiting the first stiffness tuning plate of the first spring displacement and being fixed on the second stiffness tuning plate for limiting the second spring displacement on the beam in corresponding bight, on first spring and the second spring, one end of contiguous external constraint unit is fixed in core stress unit, first spring and the second spring other end are freely, the telescopic direction of the first spring and the second spring in core stress unit axially, when anti-buckling support is in free state, between first stiffness tuning plate and the free end of the first spring, there is gap, between second stiffness tuning plate and the free end of the second spring, there is gap.
2. antidetonation body of wall according to claim 1, is characterized in that: described core stress unit is cross section is criss-cross shaped steel, and each rigidity strengthens the first spring of structure and the second spring and is separately positioned in the relative angle of two of core stress unit.
3. antidetonation body of wall according to claim 2, it is characterized in that: the first described spring is bolted in core stress unit by the first spring dead plate and first, the plate body of the first spring dead plate to be cross section be L shape, one end of first spring is fixed on a face of the first spring dead plate, the another side of the first spring dead plate is bolted on the frange plate of core stress unit by first, and the second spring adopts the mode identical with the first spring to be fixed in core stress unit.
4. the antidetonation body of wall according to claim 1,2 or 3, it is characterized in that: the first described spring and the second spring all adopt inside and outside double-layer spring, when anti-buckling support is in free state, have gap between two-layer spring, the free end of two-layer spring to corresponding rigidity reinforcement plate gap not etc.
5. a construction method for the antidetonation body of wall as described in claim 1,2 or 3, is characterized in that: comprise the steps: that (1) builds quadra, make anti-buckling support; (2) and by the first spring and the second spring be fixed in anti-core stress unit of bending support; (3) two ends of core stress unit are fixed on the summit in quadra two bights; (4) the first stiffness tuning plate is installed on post, beam is installed the second stiffness tuning plate.
CN201510397630.1A 2015-07-09 2015-07-09 A kind of antidetonation body of wall and its construction method Expired - Fee Related CN104929277B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105350657A (en) * 2015-12-01 2016-02-24 江苏筑森建筑设计有限公司 Tenon and mortise joint of steel beams and concrete shear-walls
CN107558788A (en) * 2017-10-21 2018-01-09 山东建筑大学 A kind of energy dissipation wall and its construction method
CN107740508A (en) * 2017-10-21 2018-02-27 山东建筑大学 A kind of antidetonation wall and its construction method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001059359A (en) * 1999-08-25 2001-03-06 Kayaba Ind Co Ltd Vibration control device
CN101435235A (en) * 2008-12-19 2009-05-20 北京工业大学 Steel tube concrete - steel support - steel plate external wrapping concrete shear force wall and manufacturing method thereof
CN103967117A (en) * 2014-04-12 2014-08-06 北京工业大学 Self-resetting cross-shaped center supporting system for industrialized assembly type multistory and high-rise steel structures
CN103981973A (en) * 2014-04-11 2014-08-13 北京工业大学 Tubular crossed plate assembly type steel-structure self-resetting buckling restrained brace

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001059359A (en) * 1999-08-25 2001-03-06 Kayaba Ind Co Ltd Vibration control device
CN101435235A (en) * 2008-12-19 2009-05-20 北京工业大学 Steel tube concrete - steel support - steel plate external wrapping concrete shear force wall and manufacturing method thereof
CN103981973A (en) * 2014-04-11 2014-08-13 北京工业大学 Tubular crossed plate assembly type steel-structure self-resetting buckling restrained brace
CN103967117A (en) * 2014-04-12 2014-08-06 北京工业大学 Self-resetting cross-shaped center supporting system for industrialized assembly type multistory and high-rise steel structures

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105350657A (en) * 2015-12-01 2016-02-24 江苏筑森建筑设计有限公司 Tenon and mortise joint of steel beams and concrete shear-walls
CN107558788A (en) * 2017-10-21 2018-01-09 山东建筑大学 A kind of energy dissipation wall and its construction method
CN107740508A (en) * 2017-10-21 2018-02-27 山东建筑大学 A kind of antidetonation wall and its construction method
CN110145052A (en) * 2017-10-21 2019-08-20 山东建筑大学 A kind of antidetonation wall and its construction method
CN110145052B (en) * 2017-10-21 2020-10-30 山东建筑大学 Anti-seismic wall and construction method thereof

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