CN103206028A - Embedded energy-dissipating module of coupled shear wall and using method of embedded energy-dissipating module of coupled shear wall - Google Patents
Embedded energy-dissipating module of coupled shear wall and using method of embedded energy-dissipating module of coupled shear wall Download PDFInfo
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- CN103206028A CN103206028A CN2013100920288A CN201310092028A CN103206028A CN 103206028 A CN103206028 A CN 103206028A CN 2013100920288 A CN2013100920288 A CN 2013100920288A CN 201310092028 A CN201310092028 A CN 201310092028A CN 103206028 A CN103206028 A CN 103206028A
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Abstract
The invention provides an energy-dissipating module convenient to design and construct. With the energy-dissipating module, energy-dissipating capacity of coupling beams can be increased when construction difficulty is not increased. Dampers with different span-depth ratios can be assembled by the energy-dissipating modules in a horizontal direction and in a vertical direction, the energy-dissipating zone is integrated with a build-in zone, a row of long-strip-shaped holes are reserved on the energy-dissipating zone in the long-side direction, the ends of the holes are processed into non-closed angles, the energy-dissipating modules are embedded in the reinforced concrete in a coupled shear wall, and thus, the problems in the prior art are solved.
Description
Technical field
The present invention discloses a kind of embedded power consumption module and using method thereof, particularly a kind of embedded power consumption module and using method thereof that connects the limb shearing force wall energy-dissipation that strengthen.
Background technology
Big, the anti-side performance of shear wall structure rigidity is good, is the form of structure that the steel concrete highrise building generally adopts.The shear wall structure conceptual design requires to improve structure ductility, satisfy " the weak coupling beam of strong wall limb ", coupling beam coupling beam under the rarely occurred earthquake effect is surrendered prior to the wall limb, form plastic hinge dissipation earthquake input energy, change the structural vibration frequency simultaneously, avoid the predominant period of earthquake, weaken the mesomerism response to a certain extent, vertical members such as guarantee wall limb do not collapse.Coupling beam has double action in shear wall structure: the one, and under normal use and the frequently occurred earthquake effect, coupling beam connects the adjacent wall limb of shear wall in elastic range work, guarantees that structure has enough anti-side rigidity; The 2nd, under the rarely occurred earthquake, coupling beam enters plasticity prior to the wall limb, dissipation earthquake input energy, the safety of protection shear wall agent structure.
But in the design in stage now, there are contradiction to a certain extent in rigidity and the ductility of taking into account coupling beam.For solving this difficult problem, experts and scholars have carried out a large amount of research both at home and abroad, for example intersect sleeper arrangement of reinforcement, rhombus arrangement of reinforcement, adopt advanced composite material (ACM) etc.Though more existing achievements in research have obtained good effect in theory analysis and experiment, still lack construction measure and the embodiment that is used for the practical structures design.
The eighties in 20th century, Chinese scholar had once been carried out the research of boiling water flush joint coupling beam, had proposed automatic control doubly-linked beam, had obtained structure control effect preferably.The thinking of cracking based on coupling beam, Lee of Southeast China University likes that group etc. has proposed the novel shear wall scheme of cracking the frictional resistance control device is set at the coupling beam span centre, shaketalle test studies show that frictional resistance control device dynamic characteristics and the earthquake response of control structure effectively, has improved the anti-seismic performance of shear wall effectively.Its structure is illustrated as shown in figure 23:
Proposition coupled shear wall coupling beam places such as big of the father-in-law of Tongji University open vertical slit, the vertical mild steel damping unit (ADAS/HADAS) of putting more energy between seam, under geological process, generation vertically misplaces at the coupling beam place between each limb shear wall, energy-dissipating device is surrendered prior to structure in the seam, by reciprocal plasticity hysteresis distortion dissipation seismic energy.Japan scholar Kumagai etc. also proposes to arrange the method for mild steel damper in the coupling beam that span centre disconnects, its damper form is I-shaped cross-section shaped steel, the shaped steel end is imbedded in the concrete coupling beam, test shows that this damper possesses stable hysteretic energy ability under large deformation, obviously improve the ductility of coupling beam.It is constructed as shown in figure 24:
SMA power consumption coupling beam one shear wall system of propositions such as the Liu Wancheng of Northeast Forestry University is the super elastic characteristics of utilizing the SMA material, development of new can be born the damper of shear strain, and it is installed in shear wall coupling beam middle part, make novel coupling beam under geological process, consume energy prior to the surrender of shear wall wall limb, the distortion of SMA damper is owing to the super elastic characteristics of SMA automatically replies after the earthquake simultaneously, and it is constructed as follows shown in Figure 25:
Evidence, this damper have hysteresis performance preferably, but consider the cost of device, still do not have extensive basis of using.In addition, in the power consumption semi-girder system that Smith etc. propose, if the semi-girder between the wall limb is considered as the rigidity coupling beam, then also the damping mechanism with above-mentioned a few class power consumption coupling beams is similar.
Figure 23 ~ damper shown in Figure 25 has certain control effect, but the coupling beam damper has only carried out theory analysis mostly, lacks practical engineering application.And now to coupling beam damper end structure, particularly still relatively lack with the structure aspect research that is connected of sleeper, this has limited the use of coupling beam damper greatly.
Summary of the invention
The present invention proposes a kind of power consumption module of being convenient to design and construct, and can improve the energy dissipation capacity of coupling beam on the basis of not improving difficulty of construction.The power consumption module of the present invention design can along level to the damper that vertically is combined into different span-depth radios, and damper power consumption zone and build-in district one, power consumption district upper edge long side direction has a row strip hole, the hole end is done non-wedge angle and is handled, in connecting the limb shear wall, be embedded in and steel concrete, to solve the problem that the above-mentioned prior art of mentioning exists.Position and the length-width-ratio of the length-width-ratio of power consumption module and power consumption district hole are fixed value.Damper provided wall limb coupling stiffness when this invention can guarantee normal use and normal chance earthquake, concentrate the vibrational energy of dissipative structure when fortification intensity and rarely occurred earthquake by plastic yielding power consumption in the damper plane, can improve the structural damping ratio and strengthen anti-collapsing property, solve the difficult problem of shear wall coupling beam overreinforced and arrangement of reinforcement, improve the anti-seismic performance of coupling beam and the recoverability energy after the damage.
The power consumption module that the present invention solves its technical problem employing is: a kind of for the embedded power consumption module that connects the power consumption of limb shear wall coupling beam, the power consumption module constitutes damper separately, or make up and the composition damper, described damper comprises power consumption district, non-power consumption district and the build-in district of one, the workspace has the bar shaped hole along long side direction, bar shaped hole long side direction is parallel to power consumption head of district limit, and described workspace comprises power consumption district and non-power consumption district.
The combination of power consumption module be level to and/or vertical.
Described bar shaped hole is more than row or are listed as.
The technical scheme that the present invention solves its technical problem employing further comprises:
Described power consumption module and the position of fixity that links to each other are made by Q235B or low-yield hot rolled steel plate;
Described hole corner is done non-wedge angle and is handled;
Described build-in district and damper workspace one, thickness equates;
Described build-in district has some horizontal joints, and build-in district institute boiling water flush joint minor face can be treated to the non-wedge angle form of fillet or right angle or other.
Described build-in district is provided with and is easy to the construction measure that structure connects, such as welding the shearing resistance peg or bolt hole being set;
Described power consumption module aspect ratio, hole location and hole aspect ratio are definite value;
Described power consumption module is when combination, and non-power consumption section length need be through design;
Can select to install or shear connector is not installed according to different situations on the described workspace.
A kind of using method for the embedded power consumption module that connects the power consumption of limb shear wall coupling beam, this method comprises: will be embedded in reinforced concrete coupling beams by damper single or that the power consumption module is formed more than two.Build-in district, end stretches into the wall limb, and position of fixity has some horizontal joints, and the vertical spacing of horizontal joint is decided according to wall limb stirrup spacing.
Described power consumption module using method is: by designing layout and the quantity of determining the power consumption module, during site operation and wall limb and coupling beam reinforcing bar binding carry out simultaneously.
The invention has the beneficial effects as follows: adopt according to power consumption module of the present invention, span-depth radio that can be different according to coupling beam, the layout by the power consumption module makes damper can satisfy the requirement of different span-depth radio coupling beams.Build-in of the present invention district and damper power consumption district can not establish built-in fitting in the wall limb and fix for one.The present invention is embedded in and connects on the limb shear wall structure coupling beam, reduced the arrangement of reinforcement difficulty of coupling beam in the design difficulty of structure and the construction, make structure structural dynamic characteristic under the earthquake of normal chance constant, structure energy dissipation capacity and anti-collapsing property enhancing under fortification intensity and the rarely occurred earthquake effect.
Power consumption module applicability of the present invention is strong, and widenable to dissimilar dampers, plasticity development zone can artificially be controlled, simple structure, and it is more convenient to construct, and plasticity development zone is even, extensive, and it is effective to consume energy.For the shearing of coupling beam two ends good power consumption effect is arranged.
The present invention proposes concrete form and the corresponding build-in district structure of embedded power consumption module, in the company's of can be applicable to limb shear wall structure seismic design.This device energy-wasting is effective, and the anti-seismic performance of shear wall structure is improved obviously, and simple structure does not influence architectural effect, and easy construction meets actual demands of engineering, satisfies engineering industry technology standard, can solve engineering problem.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is invention power consumption district and non-power consumption district schematic diagram.
Fig. 3 is the A-A cross-sectional view of Fig. 1.
Fig. 4 is the B-B cross-sectional view of Fig. 1.
Fig. 5 is arranged horizontally two power consumption module diagrams.
Fig. 6 is arranged horizontally two power consumption modules and steel plate schematic diagram.
Fig. 7 is arranged horizontally three power consumption module diagrams.
Fig. 8 respectively arranges the schematic diagram of two power consumption modules for vertical and level.
Fig. 9 is damper build-in district form schematic diagram.
Figure 10 is that build-in district shear connector is arranged schematic diagram.
Figure 11 is the scheme of installation of damper on coupling beam.
Figure 12 is the damper build-in district schematic diagram that shear connector is housed.
Figure 13 is compound coupling beam schematic cross-section.
Figure 14 is the embodiments of the invention structural representation.
Figure 15 is embodiments of the invention damper installation site figure.
Figure 16 is that the present invention controls the effect schematic diagram to coupling beam plasticity among the embodiment.
Figure 17 be among the embodiment the present invention to the control effect schematic diagram of coupling beam corner.
Figure 18 be among the embodiment the present invention to the control effect schematic diagram of base shear.
Figure 19 be among the embodiment the present invention to the control effect schematic diagram at relative storey displacement angle.
Figure 20 be among the embodiment the present invention to the control effect schematic diagram of shear wall wall limb plasticity.
Figure 21 is existing little span-depth radio coupling beam cross reinforcement structural representation.
Figure 22 is the arrangement of reinforcement result schematic diagram for the diagonal cross sleeper of existing little span-depth radio coupling beam.
Figure 23 is the compound coupling beam organigram of existing band frictional resistance control device.
Figure 24 is the compound coupling beam organigram of existing band I-shaped cross-section shaped steel.
Figure 25 is the compound coupling beam organigram of existing band SMA damper.
The specific embodiment
Present embodiment is the preferred embodiment for the present invention, and other all its principles are identical with present embodiment or approximate with basic structure or implementation method, all within protection domain of the present invention.
Use company's limb shear wall structure design object of embedded power consumption module to be among the present invention: after coupling beam has been used some power consumption modules; structural dynamic characteristic is similar to constant (guaranteeing that namely the rigidity of structure is constant under the normal operating condition) with the contrast of conventional even limb shear wall structure under the earthquake of normal chance; damper plays one's part to the full under fortification intensity or rarely occurred earthquake; concentrate the structural vibration energy that absorbs the earthquake input, the company's of protection limb shear wall wall limb does not enter plasticity or restriction wall limb plasticity is carried out.Structure of the present invention is identical with the existing arrangement of reinforcement structure purpose shown in the accompanying drawing 21,22; be coupling beam elastic working and assurance structural entity rigidity under the earthquake of normal chance; coupling beam is surrendered prior to the wall limb under fortification intensity or the rarely occurred earthquake; the structural vibration energy of dissipation earthquake input, protection shear wall wall limb does not enter plasticity or does not collapse.Different with prior art and arrangement of reinforcement structure, the prior art arrangement of reinforcement described in Figure 21,22 is constructed the structural vibration energy that the method that still adopts coupling beam to destroy power consumption absorbs the earthquake input, and energy dissipation capacity is limited, and destruction is difficult to repair; Structure of the present invention utilizes the energy-dissipating and shock-absorbing advanced technology, the damper of making by mild steel absorbs seismic energy, it is effective to consume energy, be easy to after the shake repair, power consumption principle of the present invention is identical with damper of the prior art power consumption principle, all is to utilize plastic strain dissipates vibration energy in the plane of setting regions under the external force shear action.Unlike the prior art be, embedded power consumption module of the present invention is to be embedded in coupling beam inside, and the outline length and width of damper when hole location and hole aspect ratio fix, guarantee its functional performance.
Please referring to accompanying drawing 1, the structure of power consumption module is among the present invention: the power consumption module is square tabular, is having 4 rectangle holes along parallel direction in limit of square, and hole minor face two ends are treated to circular arc.The present invention includes power consumption district and non-power consumption district two parts and form, as shown in Figure 2, the power consumption module is made up of power consumption district 1 and non-power consumption district 2.Power consumption district 1 and non-power consumption district 2 all need design among the present invention, its power consumption district 1 power consumption, and non-power consumption district is connected with the build-in district, and function distinguishing is clear and definite.For the present invention, in actual use, can be reached the plastic region of damper and the assurance of functional performance can be reached by the design to non-power consumption district 2 by power consumption being distinguished 1 design by the requirement for bearing capacity of the damper formed of power consumption module.Power consumption of the present invention district 1, non-power consumption district 2 and end build-in district all adopt identical materials, the plastic yielding power consumption takes place in the plastic region of appointment, build-in district form is the steel plate that has some horizontal joints, with guarantee position of fixity in the wall limb not can with reinforcing bar conflict in the shear wall.The build-in district form that adopts among the present invention can guarantee that damper normally brings into play its energy dissipation capacity, can't cause damper to lose efficacy because of cracking, and position of fixity institute boiling water flush joint minor face can be treated to fillet or right angle.The present invention has four horizontal joints along an edge direction in power consumption district 1, the horizontal joint aspect ratio is 15.Strip hole both sides are designed to circular arc.As shown in Figure 3, Figure 4, it is cross-sectional view of the present invention, can clearerly reflect structure of the present invention.Can make up the power consumption module according to the different coupling beams of different structure during actual the use, and can carry out the equal proportion convergent-divergent according to the actual conditions module that will consume energy.Show as damper power consumption district during the damper operate as normal and the flexure type plastic hinge occurs.As Fig. 5, Fig. 6, Fig. 7 and shown in Figure 8, be the composite type schematic diagram of several different embedded power consumption modules.
The present invention can use one or more power consumption module combinations among the present invention in use, is embedded in the shear wall structure coupling beam.Please referring to accompanying drawing 9, crack apart from being determined by shear wall wall limb stirrup spacing in a kind of model damper of being made up of the present invention shown in the figure and the build-in district in the reinforced concrete shear wall wall limb, build-in district.Build-in district surface arrangement has shear connector, as Figure 10, shown in Figure 11.During concreting, damper directly waters in coupling beam, firmly is connected with the wall limb with damper build-in district, please refer to accompanying drawing 12.After installing, damper should be positioned in the middle of the coupling beam, as shown in figure 13.
For requirement of engineering, at different structures and load situation, arrangement, usage quantity and the thickness of tackling embedded power consumption module design.Design principles is: guarantee that damper makes an addition to the anti-side rigidity of coupling beam after the coupling beam connects limb shear wall structure coupling beam close to routine anti-side rigidity, axial rigidity is not less than the conventional limb shear wall structure coupling beam rigidity that connects, and chooses size and the arrangement of power consumption module on this basis.
Please referring to accompanying drawing 14.Shown in the figure for adopting embedded power consumption block configuration of the present invention in coupling beam and being applied to concrete application example in the shear wall structure.This engineering is 224.8 meters for the building body height.Overground part 48+1=49 layer, main body plane are rectangle.43,44,45 layers of east side frame column are found time, and arrange at 49 layers and hang 48,47,46 layers under the cantilever frame.Damper arrangement scheme and quantity, carry out degree and plasticity distributed areas based on the plasticity of structure under two-way earthquake motion rarely occurred earthquake, through many sets of plan analysis contrast and optimization, final determine additional coupling beam damper arrangement as shown in figure 15, require in the structural core tube according to designing institute that (6 every layer) arrange on 1-3 axle, the 1-5 axle twice axis.Wherein damper numbering ZNQ-1 represents that damper length is 5000mm, and height 800mm is arranged in the coupling beam that is numbered LL1 in the computation model in the 13-35 layer, and the LL1 span is 3400mm, highly comprises 1200mm, 1000mm and 950mm; Numbering ZNQ-2 represents that damper length is 3800, and height 800mm is arranged in the coupling beam that is numbered LL2 in the 13-35 layer of computation model, and the LL2 span is 2850mm, highly comprises 1200mm, 1000mm and 950mm.All additional damping equipment material are Q235B in this programme, and thickness is all got 20mm, and damper all is embedded in coupling beam inside.To the additional coupling beam damper of the coupling beam (6 every layer) on 13-35 layer 1-3 axle, the 1-5 axle twice axis in the structural core tube, under two-way rarely occurred earthquake effect, carried out the elastoplasticity Dynamic time history analysis of additional coupling beam damper structure, can find out from Figure 16 ~ Figure 20, relatively obtained drawing a conclusion with the original structure analysis result: behind the additional coupling beam damper, the coupling beam plastic hinge quantity that structure enters the CP level obviously reduces, and the plastic hinge distributed areas obviously reduce; Behind the additional coupling beam damper, the ratio of the big shake base shear of structure Y-direction and little shake base shear improves about 5%; Behind the additional coupling beam damper, the maximum relative storey displacement of structure Y-direction floor angle is reduced to 1/192 by original 1/179; Behind the additional coupling beam damper, wall limb damage quantity decreases in the structural core tube, and degree of injury alleviates to some extent; Behind the additional coupling beam damper, the power consumption of structural wall limb plasticity reduces by 2%, and the power consumption of coupling beam plasticity reduces by 5%, and the power consumption of damper plasticity accounts for 7% of structure total plastic property power consumption, has improved the energy dissipation capacity of structure.
Only with a kind of concrete condition structure of the present invention and concrete the application are described in this example, the present invention also exists other embodiments, structure and methods for using them.As this example provide for arranging two power consumption modules, geometric ratio is amplified the engineering of twice and is used, but is not limited thereto, and can take different power consumption module arrangement and quantity selection scheme according to actual requirement of engineering.The wall limb stirrup spacing of the structure that this example provides is 100mm, so be 100mm for the build-in district of this structural damping device spacing of cracking, but is not limited thereto, and can adopt the different build-in districts size of cracking according to actual engineering.
The present invention can be widely used in connecting in the limb shear wall structure, is embedded in reinforced concrete coupling beams, to solve the difficult problem of shear wall coupling beam arrangement of reinforcement, realizes shear wall coupling beam simple structure, increases its anti-seismic performance.
Claims (10)
1. one kind is used for the even embedded power consumption module of limb shearing force wall energy-dissipation, it is characterized in that: the power consumption module constitutes damper separately, or make up and the composition damper, described damper comprises power consumption district, non-power consumption district and the build-in district of one, the workspace has the bar shaped hole along long side direction, bar shaped hole long side direction is parallel to power consumption head of district limit, and described workspace comprises power consumption district and non-power consumption district.
2. according to claim 1 for the embedded power consumption module that connects the limb shearing force wall energy-dissipation, it is characterized in that: the combination of power consumption module be level to and/or vertical.
3. according to claim 1 for the embedded power consumption module that connects the limb shearing force wall energy-dissipation, it is characterized in that: described bar shaped hole is more than row or are listed as.
4. according to claim 1 for the embedded power consumption module that connects the limb shearing force wall energy-dissipation, it is characterized in that: described power consumption module material is selected Q235B or low-yield mild steel for use.
5. described for the embedded power consumption module that connects the limb shearing force wall energy-dissipation according to claim 1-4, it is characterized in that: circular arc is done the hole corner in described power consumption district or other non-wedge angle is handled.
6. described for the embedded power consumption module that connects the limb shearing force wall energy-dissipation according to claim 1-5, it is characterized in that: described build-in district thickness equals workspace thickness.
7. according to claim 1 for the embedded power consumption module that connects the power consumption of limb shear wall coupling beam, it is characterized in that: crack that spacing adapts to wall limb stirrup spacing or be identical in described build-in district.
8. described for the embedded power consumption module that connects the limb shearing force wall energy-dissipation according to claim 1-7, it is characterized in that: described build-in district is furnished with shear connector.
9. using method for the embedded power consumption module that connects the limb shearing force wall energy-dissipation as claimed in claim 1, it is characterized in that: will be embedded in reinforced concrete coupling beams by damper single or that the power consumption module is formed more than two, build-in district, end stretches into the wall limb, position of fixity has some horizontal joints, the vertical spacing of horizontal joint with adapt to according to wall limb stirrup spacing or coincide.
10. one kind as the described using method for the embedded power consumption module that connects the power consumption of limb shear wall coupling beam of claim 1-9, and it is characterized in that: described this method comprises: during damper site operation that the power consumption module constitutes and wall limb and coupling beam reinforcing bar binding carry out simultaneously.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103774550A (en) * | 2014-01-08 | 2014-05-07 | 华侨大学 | Box-shaped steel pier with embedded energy consumption shell plates |
| CN105863099A (en) * | 2016-06-07 | 2016-08-17 | 北京堡瑞思减震科技有限公司 | Bone-shaped coupling beam damper |
| CN106193450A (en) * | 2016-09-06 | 2016-12-07 | 南京工业大学 | High-energy-consumption concrete coupling beam with built-in mild steel |
| CN107237417A (en) * | 2017-06-16 | 2017-10-10 | 哈尔滨工业大学深圳研究生院 | The embedded power consumption module and damper and coupling beam consumed energy for coupled shear walls |
| CN108729564A (en) * | 2017-04-19 | 2018-11-02 | 北京清华同衡规划设计研究院有限公司 | Assembled architecture system |
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| CN102011438A (en) * | 2010-11-15 | 2011-04-13 | 沈阳建筑大学 | Shear wall and connecting beam damping system with internally embedded energy consumption steel plate damping devices |
| CN203583702U (en) * | 2013-03-21 | 2014-05-07 | 滕军 | Damper formed by coupled shear wall embedded-type energy-dissipating module |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102011438A (en) * | 2010-11-15 | 2011-04-13 | 沈阳建筑大学 | Shear wall and connecting beam damping system with internally embedded energy consumption steel plate damping devices |
| CN203583702U (en) * | 2013-03-21 | 2014-05-07 | 滕军 | Damper formed by coupled shear wall embedded-type energy-dissipating module |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774550A (en) * | 2014-01-08 | 2014-05-07 | 华侨大学 | Box-shaped steel pier with embedded energy consumption shell plates |
| CN103774550B (en) * | 2014-01-08 | 2016-01-20 | 华侨大学 | The box steel pier of embedded power consumption coverboard |
| CN105863099A (en) * | 2016-06-07 | 2016-08-17 | 北京堡瑞思减震科技有限公司 | Bone-shaped coupling beam damper |
| CN106193450A (en) * | 2016-09-06 | 2016-12-07 | 南京工业大学 | High-energy-consumption concrete coupling beam with built-in mild steel |
| CN108729564A (en) * | 2017-04-19 | 2018-11-02 | 北京清华同衡规划设计研究院有限公司 | Assembled architecture system |
| CN108729564B (en) * | 2017-04-19 | 2024-04-16 | 北京清华同衡规划设计研究院有限公司 | Assembled building system |
| CN107237417A (en) * | 2017-06-16 | 2017-10-10 | 哈尔滨工业大学深圳研究生院 | The embedded power consumption module and damper and coupling beam consumed energy for coupled shear walls |
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Application publication date: 20130717 |