CN101397818A - Horizontal energy dissipation apparatus for general steel plate - Google Patents
Horizontal energy dissipation apparatus for general steel plate Download PDFInfo
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- CN101397818A CN101397818A CNA2008101375216A CN200810137521A CN101397818A CN 101397818 A CN101397818 A CN 101397818A CN A2008101375216 A CNA2008101375216 A CN A2008101375216A CN 200810137521 A CN200810137521 A CN 200810137521A CN 101397818 A CN101397818 A CN 101397818A
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- steel plate
- power consumption
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- general steel
- energy dissipation
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Abstract
The invention provides a general steel plate horizontal anti-earthquake energy consuming device, which comprises two parts, namely, at least one type of general steel plates and connecting components for connecting a steel plate with a construction structural element; a low yield point steal plate is a preferable general steel plate; the section property of a middle energy consuming section is changed in three modes, namely, a mode of changing steel grades, a mode of changing thickness and a mode of weakening the middle part; a pre-embedded component which is convenient for the reliable connection of the steel plate is arranged in the construction structural element. The device is a metal yield damper which can increase the damping of the whole construction structure so as to reduce the effect of the construction structure in an earthquake and seismic damages, and has the advantages of flexible installation positions, easy production, good economic effects and energy consuming effects, convenient construction, and the like.
Description
(1) technical field
The present invention relates to the building structure technical field of preventing and reducing natural disasters, belong to structural vibration Passive Control subject, be specifically related to a kind of horizontal energy dissipation apparatus that utilizes general steel plate to develop.
(2) background technology
Earthquake has been caused great threat for human existence and development, and has caused incalculable damage as one of natural calamity.China is positioned at volcanic earthquake band western part, Pacific Rim, is one of country that earthquake disaster is the most serious in the world.It is significant to carry out antidetonation mitigation work.Up to the present, the effective method of resisting earthquake is the earthquake resistant engineering method, i.e. " three levels, two stages " method for designing of generally adopting of countries in the world seismic design of structures standard now.Because this is the conventional method of main path with " resisting ", need to resist earthquake by increasing structural section and arrangement of reinforcement, consequently the cross section is big more, geological process is also big more, and required cross section and arrangement of reinforcement are also big more, form a kind of vicious circle, not only be difficult to guarantee safety, also improved construction cost greatly.The seventies in 20th century, it is the method that approach is resisted earthquake disaster with " subtracting " that scholars have sought a kind of, and control device promptly is set in building structure, and the method has economic, practical and power transmission clearly waits characteristics.The energy-dissipating and shock-absorbing technology is one of main path wherein.The present invention adopts general steel plate, by set-up mode specific in building structure, reaches the purpose of energy-dissipating and shock-absorbing, belongs to a kind of novel form of metal yield damper.
(3) summary of the invention
The object of the present invention is to provide a kind of metal yield damper, can increase the damping of monolithic architecture structure, thereby can reduce the reaction of building structure under geological process, alleviate earthquake, have simultaneously the installation site flexibly, the horizontal energy dissipation apparatus for general steel plate of characteristics such as device is easy to produce, economic, effective, the easy construction of consuming energy.
The object of the present invention is achieved like this: it comprises the link two large divisions of general steel plate and the steel plate and the building structural element of at least a model, general steel plate is preferentially chosen the low-yield steel, the change of middle power consumption section cross section property realizes by three kinds of set-up modes, promptly become grade of steel type, thickening degree type and middle part weakening type, be provided with in the building unit so that the reliable built-in fitting that connects of steel plate, general steel plate is installed in the building unit by the link of steel plate and building structural element, and steel plate links to each other with built-in fitting with the link of building structural element.
The present invention also comprises some technical characterictics like this:
1, described steel plate vertically is arranged in the building structural element, the overall height that the floor height of building structure promptly installs for this reason;
2, described power consumption section cross section property change place in the middle of steel plate, promptly there is the setting of reinforcement the commissure, strengthens being set at the laterally disposed steel bar of putting more energy into;
3, the height of power consumption section passes through formula in the middle of the described steel plate
Obtain, wherein F is the horizontal force of geological process, and Δ is the middle power consumption plate horizontal sidesway at two ends up and down, and A is the section area of middle power consumption plate, and G is the modulus of shearing of middle power consumption slab material;
4, power consumption section weakening type is for being provided with the weakening hole in the middle power consumption section of steel plate in the middle of the described steel plate, and the weakening degree of weakening type is the area that weakens hole, 10% ~ 20% of the section that consumes energy in the middle of its area the should be steel plate gross area.
Implementation method of the present invention is: at first analyze and the antidetonation weak part of definite building structure, set in advance built-in fitting and be used for fixing device of the present invention, at last the beam at energy-dissipating device and adjacent two ends is up and down fixed, and guaranteed to be fixed well.The development of apparatus of the present invention mainly utilizes the change of cross section property to make a difference, and makes the centre portion of steel plate under geological process weaken thereby can at first surrender, and to consume the energy that most of ground motion passes to building structure, alleviates earthquake.Wherein, energy-dissipating device need be manufactured according to the concrete size of building structure, and vertically is arranged in the middle of the building, and it is more flexible that the position is set.The change of cross section property is mainly by adopting different grades of steel, adopting modes such as two kinds of thickness, the weakening of central section cross section to realize.In change place of steel plate cross section property, need to strengthen in the commissure.
The present invention is a kind of horizontal energy dissipation apparatus that utilizes general steel plate to develop.The steel plate of certain thickness, certain production method promptly vertically is set between building unit, and it was at first surrendered before building structure generation plastic strain, consumed the energy that ground motion passes to building structure, earthquake disaster mitigation with this.Certain production method is meant by whole vertical steel plate and changes to some extent on cross section property.
(1) the antidetonation weak part of selected building structure.
(2) according to the geometrical scale of weak part, design is also made apparatus of the present invention.
(3) apparatus of the present invention reliably are connected with building structure.
Metal damper is effective, the most reliable, the most most economical dissipative cell in the passive energy-dissipating and shock-absorbing system of structure.Its main energy consume mechanism is that nonelastic deformation and the low-Cycle Fatigue Characteristics by metal material realizes, be that structural vibration makes dissipative cell back and forth relative deformation or produce reciprocal relative velocity passively, thus dissipative structure vibrational energy, the dynamic response that alleviates structure.Through existing a large amount of evidences, steel have good hysteresis performance.So utilize common iron production technique energy-dissipating device, can reduce structural response, alleviate earthquake.
The invention belongs to the prevent and reduce natural disasters application technology in field of building structure, be applicable to the energy-dissipating and shock-absorbing design work of building structure, thereby can build building, withstand natural calamities with good resistance shock stability.The present invention is a kind of metal yield damper, can increase the damping of monolithic architecture structure, thereby can reduce the reaction of building structure under geological process, alleviate earthquake, have simultaneously the installation site flexibly, characteristics such as device is easy to produce, economic, effective, the easy construction of consuming energy.
Beneficial effect of the present invention is: the present invention can be so that building structure can be resisted horizontal dynamic load preferably, as geological process etc., can improve the shock resistance of structure self preferably, consumes the most of energy that is passed to building structure by geological process.In conjunction with Fig. 3, device of the present invention has good power consumption effect.Because according to the power consumption principle, the hysteresis loop of device is full more, illustrate that the power consumption effect is good more.
(4) description of drawings
The structural representation of Fig. 1 different grades of steel, two kinds of form devices of two kinds of thickness of employing for apparatus of the present invention adopt.
Fig. 2 weakens the structural representation of form device for apparatus of the present invention adopt the central section cross section.
Fig. 3 is the hysteresis loop of apparatus of the present invention test.
(5) specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
In conjunction with Fig. 1 and Fig. 2, outward appearance of apparatus of the present invention and relative configurations requirement as can be known.
1, the present invention implements according to the following steps:
(1) determines this Unit Installation position.According to design feature, analyze and determine antidetonation weak location in the building structure.
(2) as the case may be, select suitable device form.Can take all factors into consideration according to the complexity of the expection work effect of device and the economy of making thereof, production and characteristics such as draw materials.
(3) according to design condition, design apparatus of the present invention are also made.The device schematic diagram can be referring to Fig. 1 or Fig. 2.
(4) apparatus of the present invention reliably are connected with building structure.Link position, i.e. screwhole position can be referring to the end connecting portion among Fig. 1 or Fig. 2.
2, concrete operations are as follows:
(1) the antidetonation weak part of determining building structure maybe needs the position strengthened.After determining, the physical dimension in the space that need grasp desire is installed and the physical dimension of adjacent members.
(2) select suitable device form.
(3), carry out Design of device as the horizontal sidesway at two ends about geological process horizontal force, the power consumption section, the section area conditions such as (width of the plate that promptly consumes energy and the products of steel plate thickness, as follows) of middle power consumption plate according to the design condition of determining.Design content mainly comprises, the steel plate model of device, steel plate thickness, weakening degree, connecting bolt design etc.The connecting bolt design can be with reference to existing " Code for design of steel structures " (GB 50017-2003).
(4) Unit Installation.By bolt with angle steel is set, this device and built-in fitting are fixed.
The technical scheme of present embodiment invention is:
(1) physical dimension of antidetonation weak part in the building structure is the size foundation of carrying out this device design.The overall height that the floor height of building structure promptly installs for this reason.The height of power consumption section needs to determine by calculating in the middle of the device of the present invention.Design of device need be finished by the horizontal sidesway at two ends about geological process horizontal force, the power consumption section, the conditions such as section area of middle power consumption plate.
The physical dimension of antidetonation weak part in the building structure among the present invention is the size foundation of carrying out this device design.The overall height that the floor height of building structure promptly installs for this reason.Power consumption section height is determined by calculating in the middle of the device of the present invention.Design formulas is
。Wherein, F is the horizontal force of geological process, and Δ is the middle power consumption plate horizontal sidesway at two ends up and down, and two numerical value (GB50011-2001) are determined by " seismic design provision in building code "; A is the section area of middle power consumption plate; G is the modulus of shearing of middle power consumption slab material.Can determine the height h of middle power consumption plate by top calculating.
The key of this device is the height of power consumption section in the middle of the design.Two parts canned paragraph needs rigidity bigger up and down, can effectively transmit the horizontal force of geological process, consumes energy section highly in the middle of size is deducted by floor height, divides equally then to get final product.
(2) the middle power consumption section of device of the present invention realizes by three kinds of modes, promptly adopts different grades of steel, two kinds of thickness of employing, central section cross section to weaken.Specifically be described below (3), (4) and (5).
(3) adopt different grade of steel types.Device of the present invention, schematic diagram are referring to Fig. 1, and device wherein of the present invention is arranged between beam 1, post 3, beam 2 and the post 4 of building structure.A, B, C are three block plates, and wherein A, C steel plate adopt Q345 number, and the B steel plate adopts Q235 number.In addition, the height of A, C two block plates is identical; The height of B steel plate is 1/4 ~ 1/3 of apparatus of the present invention overall height h.Steel plate thickness A, B, C are identical, need be decided by the concrete condition design.D is the side direction steel bar of putting more energy into, and promptly change place of power consumption section cross section property is the reinforcement setting of commissure in the middle of steel plate, and is identical with the thickness of A, C steel plate.
(4) adopt two kinds of thickness types.This form device, schematic diagram still can be referring to Fig. 1.A, B, C are three block plates.Steel plate thickness A, C are identical, and the thickness that steel plate B adopts is specifically decided by design than the little 2 ~ 5mm of A, C.Steel plate all adopts Q235 number.In addition, the height of A, C two block plates is identical; The height of B steel plate is 1/4 ~ 1/3 of apparatus of the present invention overall height h.D is the side direction steel bar of putting more energy into, and is identical with A, B, each self-corresponding thickness of C steel plate.
(5) central section cross section weakening type.This form device, schematic diagram is participated in Fig. 2, and device wherein of the present invention is arranged between beam 1, post 3, beam 2 and the post 4.A, B, C steel plate adopt the Q235 steel, and are made by thickness of the same race.Thickness needs to be decided by the concrete condition design.And B zone steel plate need be made into the weakening type, and vertical height is about 1/4 ~ 1/3 of apparatus of the present invention overall height h.D is the side direction steel bar of putting more energy into, and is identical with the thickness of A, C steel plate.
(6) device of the present invention two ends and building unit are reliably to be connected with built-in fitting in the building unit with angle steel and bolt by the end.
Claims (5)
1, a kind of horizontal energy dissipation apparatus for general steel plate, it is characterized in that it comprises the link two large divisions of general steel plate and the steel plate and the building structural element of at least a model, general steel plate is preferentially chosen the low-yield steel, the change of middle power consumption section cross section property realizes by three kinds of set-up modes, promptly become the grade of steel type, thickening degree type and middle part weakening type, be provided with in the building unit so that the reliable built-in fitting that connects of steel plate, general steel plate is installed in the building unit by the link of steel plate and building structural element, and steel plate links to each other with built-in fitting with the link of building structural element.
2, horizontal energy dissipation apparatus for general steel plate according to claim 1 is characterized in that described steel plate vertically is arranged in the building structural element, the overall height that the floor height of building structure promptly installs for this reason.
3, horizontal energy dissipation apparatus for general steel plate according to claim 2 is characterized in that described power consumption section cross section property change place in the middle of steel plate, and promptly there is the setting of reinforcement the commissure, strengthens being set at the laterally disposed steel bar of putting more energy into.
4, horizontal energy dissipation apparatus for general steel plate according to claim 3 is characterized in that the height of the middle power consumption section of described steel plate passes through formula
Obtain, wherein F is the horizontal force of geological process, and Δ is the middle power consumption plate horizontal sidesway at two ends up and down, and A is the section area of middle power consumption plate, and G is the modulus of shearing of middle power consumption slab material.
5, horizontal energy dissipation apparatus for general steel plate according to claim 4, power consumption section weakening type is provided with the weakening hole for power consumption section in the middle of steel plate in the middle of it is characterized in that described steel plate, the weakening degree of weakening type is the area that weakens hole, 10%～20% of the section that consumes energy in the middle of its area the should be steel plate gross area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101375216A CN101397818B (en) | 2008-11-13 | 2008-11-13 | Horizontal energy dissipation apparatus for general steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101375216A CN101397818B (en) | 2008-11-13 | 2008-11-13 | Horizontal energy dissipation apparatus for general steel plate |
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| CN101397818A true CN101397818A (en) | 2009-04-01 |
| CN101397818B CN101397818B (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101375216A Expired - Fee Related CN101397818B (en) | 2008-11-13 | 2008-11-13 | Horizontal energy dissipation apparatus for general steel plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132627A (en) * | 2011-12-05 | 2013-06-05 | 同济大学 | Combined plate type bending damper and manufacturing method thereof |
| CN103924706A (en) * | 2014-04-28 | 2014-07-16 | 山东建筑大学 | Anti-shock and power-wasting uniform section joist steel and framed girder comprising same |
-
2008
- 2008-11-13 CN CN2008101375216A patent/CN101397818B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132627A (en) * | 2011-12-05 | 2013-06-05 | 同济大学 | Combined plate type bending damper and manufacturing method thereof |
| CN103132627B (en) * | 2011-12-05 | 2014-11-26 | 同济大学 | Combined plate type bending damper and manufacturing method thereof |
| CN103924706A (en) * | 2014-04-28 | 2014-07-16 | 山东建筑大学 | Anti-shock and power-wasting uniform section joist steel and framed girder comprising same |
| CN103924706B (en) * | 2014-04-28 | 2016-04-20 | 山东建筑大学 | A kind of uniform section i iron of energy dissipation and comprise its Vierendeel girder |
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| Publication number | Publication date |
|---|---|
| CN101397818B (en) | 2010-12-08 |
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Granted publication date: 20101208 Termination date: 20111113 |