DE19638658A1 - Shock-load absorber fixture surface on wall of power station - Google Patents
Shock-load absorber fixture surface on wall of power stationInfo
- Publication number
- DE19638658A1 DE19638658A1 DE1996138658 DE19638658A DE19638658A1 DE 19638658 A1 DE19638658 A1 DE 19638658A1 DE 1996138658 DE1996138658 DE 1996138658 DE 19638658 A DE19638658 A DE 19638658A DE 19638658 A1 DE19638658 A1 DE 19638658A1
- Authority
- DE
- Germany
- Prior art keywords
- plastic
- section
- elastic
- pressure
- wall
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/12—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against air pressure, explosion, or gas
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Dampers (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur druckstoßabsor bierenden Befestigung eines Flächenelementes an einem Wande lement mit den weiteren Merkmalen des Oberbegriffs des Pa tentanspruches 1. Unter dem Begriff Flächenelement werden Ab deckungen, Riegel, Tore, Zwischenwände und dgl. verstanden, die im Normalbetrieb der Abschirmung oder Zugangsmöglichkeit zu einem Raum dienen, der durch Wandelemente, insbesondere durch unbewegliche Bauelemente begrenzt wird. Das Flächenele ment oder ein an diesem angeordnetes Halteteil soll nach der Lehre des Oberbegriffs überlappend an der der druckstoßbela steten Seite abgewandten Außenseite des Wandelementes anlie gen, das Wandelement sowie das Flächenelement oder das daran angeordnete Halteteil weisen ferner miteinander fluchtende Durchgangsbohrungen auf, die von einem langgestreckten Befe stigungs- oder Verbindungselement durchsetzt sind.The invention relates to a device for pressure surge absorber be fixation of a surface element on a wall element with the other features of the preamble of Pa tent claims 1. Under the term surface element Ab covers, bars, gates, partitions and the like understood, the normal operation of the shield or access serve to a room by wall elements, in particular is limited by immovable components. The surface element ment or a holding part arranged on this should according to the Teaching of the generic term overlapping on that of the pressure surge covering constant side facing away from the outside of the wall element gene, the wall element and the surface element or that arranged holding part also have aligned with each other Through holes on by an elongated befe Stigungs- or connecting element are penetrated.
In explosions- oder verpuffungsgefährdeten Räumlichkeiten ist es erforderlich, bei Druck- und Stoßbeanspruchungen dafür zu sorgen, daß miteinander verbundene flächige Teile ihre räum liche Sollage beibehalten und insbesondere nicht unkontrol liert weggeschleudert werden. Dabei kann es nämlich zur Be schädigung von empfindlichen Anlagen und Bauteilen kommen, die in solchen Räumen untergebracht sind. Insbesondere ist der hochsensible Bereich von Chemieanlagen und Kraftwerken, insbesondere auch der Kernkraftwerksbereich angesprochen, in dem extrem hohe Sicherheitsanforderungen gelten.In premises that are at risk of explosion or deflagration it is necessary to do this under pressure and shock loads ensure that interconnected flat parts their space Maintain target position and in particular not uncontrollably be thrown away. It can namely be used damage to sensitive systems and components, which are housed in such rooms. In particular is the highly sensitive area of chemical plants and power plants, in particular also addressed the nuclear power plant area, in which have extremely high security requirements.
Im Industrie- und Forschungsanlagenbau werden eine Vielzahl von flächigen Abdeckungen, Toren, Zwischenwänden und derglei chen angeboten, die auf die im Oberbegriff beschriebene über lappende Weise an Wänden befestigt sind. Dazu dienen beim Stand der Technik herkömmliche Befestigungs- und Verbindungs mittel in Form von Bolzen, Schrauben, Nieten und dergleichen, die in der Regel so dimensioniert sind, daß im Falle von auf tretenden Druck- oder Stoßbelastungen ein sicherer Halt der Befestigungsmittel gewährleistet ist und die Belastungen starr aufgenommen werden. Dies führt dazu, daß die Quer schnitte der verwendeten Befestigungsmittel zweckmäßigerweise relativ groß sind.A large number are used in industrial and research plant construction of flat covers, gates, partitions and the like Chen offered that over to that described in the preamble are attached to walls in a lapping manner. To serve at State of the art conventional fastening and connection medium in the form of bolts, screws, rivets and the like, which are usually dimensioned so that in the case of on occurring pressure or shock loads a secure hold of the Fasteners are guaranteed and the loads be rigidly recorded. This causes the cross cuts of the fasteners used expediently are relatively large.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung mit den Merkmalen des Oberbegriffes des Anspruches 1 derart weiterzubilden, daß an ihr befestigte Flächenteile unter Druck- und Stoßbeanspruchungen sicher in ihrer Position ge halten werden und nur kontrollierten, geringfügigen Bewegun gen unterliegen, wobei eine Belastung der Flächenelemente selbst reduziert wird. Diese Aufgabe wird durch die kenn zeichnenden Merkmale des Anspruches 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteran sprüchen.The invention has for its object a device with the features of the preamble of claim 1 such to further develop that attached parts of it under Pressure and shock loads securely in their position and only controlled, slight movement gene subject to a load on the surface elements itself is reduced. This task is carried out by the kenn Drawing features of claim 1 solved. Beneficial Further developments of the invention result from the Unteran sayings.
Nach dem Kennzeichen des Patentanspruchs 1 ist vorgesehen, daß das Befestigungselement mindestens einen elastisch dehn baren, das Flächenelement nach Abbau der Druckstoßbelastung im wesentlichen in seine Ursprungslage zurückführenden ersten Abschnitt sowie mindestens einen zweiten, plastisch dehnbaren Abschnitt aufweist, der dann wirksam wird, wenn der minde stens eine elastische Abschnitt unter der Belastung des Druckstoßes seine Endanschlagstellung erreicht hat.According to the characterizing part of patent claim 1, that the fastener elastically stretch at least one baren, the surface element after reducing the pressure surge load essentially the first to return to its original position Section and at least a second, plastically stretchable Section that takes effect when the minimum least an elastic section under the load of the Pressure surge has reached its end stop position.
Als Kern der Erfindung wird es angesehen, zwei miteinander
verbundene Elemente in das Befestigungselement zu integrie
ren, wobei das erste Element lediglich elastisch wirksam
wird und in jeden Fall für eine exakte Rückstellung des Flä
chenelements in seiner Ursprungslage sorgt. Falls aber der
elastische Bereich des ersten Elements oder der erste Ab
schnitts nicht mehr ausreichend ist, um die Druckstoßbela
stung vollständig aufzufangen, wird das zweite Element bzw.
der zweite Abschnitt wirksam, der sich unter besonders star
ken Druckstößen zusätzlich plastisch verformt und damit ein
Brechen oder Lösen der Befestigungselemente von dem Flä
chenelement oder Wandelement vermeidet.As the core of the invention, it is considered to integrate two interconnected elements into the fastening element, the first element being only elastically effective
is and in any case ensures an exact reset of the surface element in its original position. If, however, the elastic region of the first element or the first section is no longer sufficient to fully absorb the pressure surge load, the second element or the second section becomes effective, which is additionally plastically deformed under particularly strong pressure surges and thus breaks or loosening the fasteners from the surface element or wall element.
Vorteilhafterweise liegen das elastische und das plastische Element in Längsrichtung des Befestigungselements hinterein ander, wobei in Weiterbildung der Erfindung das elastische Element ein Federelement ist, insbesondere eine Schraubenfe der, die koaxial zum langgestreckten Befestigungselement ver läuft. Das plastische Element ist vorteilhafterweise ein langgestreckter, bolzenartiger Stab, der die Durchgangsboh rungen und das als Schraubenfeder ausgebildete elastische Element durchsetzt, wobei die Schraubenfeder nach Art eines Federtopfes auf der Innenseite des Wandelements angeordnet ist und von einem Kopf des Stabes in Richtung des Wandele ments beaufschlagt wird. Dadurch ergibt sich eine leicht zu montierende und räumlich vorteilhafte, platzsparende Bauwei se. Der bolzenartige Stab weist einen zur plastischen Verfor mung vorgesehenen gesonderten Abschnitt auf, der auch als Verjüngung des Stabquerschnitts ausgebildet sein kann oder aber auch ein gesondertes Material mit erhöhter Plastizität aufweist. Die Materialeigenschaften des elastischen Elements und die des plastischen Elements sind so gewählt, daß eine plastische Verformung des plastischen Elements erst dann ein setzt, wenn die Verformung des elastischen Elements einen zu lässigen Maximalendanschlagwert erreicht hat, mit anderen Worten, die als Druckelement ausgebildete Feder auf Block ge fahren ist.The elastic and the plastic are advantageously located Element in the longitudinal direction of the fastener behind other, in a further development of the invention the elastic Element is a spring element, in particular a screw the ver, coaxial to the elongated fastener running. The plastic element is advantageously a elongated, bolt-like rod that connects the through hole stanchions and the elastic formed as a coil spring Element penetrates, the coil spring like a Spring cup arranged on the inside of the wall element is and from a head of the stick towards the change ment is applied. This results in an easy to assembling and space-saving, space-saving construction se. The bolt-like rod has a plastic deformation mation provided on separate section, which is also called Tapering of the rod cross section can be formed or but also a separate material with increased plasticity having. The material properties of the elastic element and those of the plastic element are chosen so that a only then plastic deformation of the plastic element sets when the deformation of the elastic element to one has reached the permissible maximum end stop value with others Words, the spring designed as a pressure element on block ge is driving.
Falls das Flächenelement und das Wandelement im Überdeckungs bereich einen L-förmigen Querschnitt aufweisen und im Über deckungsbereich ein flächiger Kontaktbereich zwischen Flä chenelement und Wandelement durch ein stufenartiges Übergrei fen des oder der L-Schenkel gebildet wird, ist eine gegensei tige Führung der unter Druckstoßbelastung sich relativ zuein ander bewegenden Elemente gewährleistet, so daß die Bolzen nicht auf Scherung belastet werden, sondern nur entlang ihrer Längsachse.If the surface element and the wall element are in the overlap area have an L-shaped cross-section and in the over coverage area a flat contact area between areas Chen element and wall element by a step-like overpass fen of or the L-leg is formed, is a opposite leadership of the pressure surge relative to each other other moving elements ensured so that the bolt not be loaded on shear, but only along their Longitudinal axis.
Auf einfache Weise läßt sich auch eine Anzeigevorrichtung an dem plastischen Element vorsehen, durch die angezeigt wird, wenn eine plastische Verformung des plastischen Elements stattgefunden hat und das Element damit auszutauschen ist. Die Anzeigevorrichtung kann beispielsweise eine mechanisch betätigte Nase sein, die im Falle einer Verlängerung des pla stischen Elements in einer Anzeigeausnehmung sichtbar wird oder eine solche durchgreift.A display device can also be attached in a simple manner the plastic element that indicates if there is a plastic deformation of the plastic element has taken place and the element is to be replaced with it. The display device can, for example, be a mechanical one operated nose, which in the event of an extension of the pla tical element is visible in a display recess or takes one.
Die Erfindung ist anhand vorteilhafter Ausführungsbeispiele in den Zeichnungsfiguren näher erläutert. Diese zeigen:The invention is based on advantageous embodiments explained in more detail in the drawing figures. These show:
Fig. 1 eine Vorrichtung zur Druckstoßabsorbierenden Be festigung eines Flächenelements an einem Wandele ment in Ruhestellung; Figure 1 shows a device for shock absorbing fastening of a surface element on a Wandele element in the rest position.
Fig. 2a eine Vorrichtung gemäß Fig. 1 bei Druckanstieg; FIG. 2a shows a device according to FIG. 1 when the pressure rises;
Fig. 2b eine Vorrichtung gemäß Fig. 1 beim Abfangen einer kurzzeitigen Maximalbeanspruchung durch linear elastisches Verhalten des elastischen Elements; . Fig. 2b is a device according to Figure 1 for catching a momentary maximum stress by linear elastic behavior of the elastic member;
Fig. 2c Abfangen der Bewegung des Flächenelements unter Ausnutzung auch des elasto-plastischen Arbeits vermögens des plastischen Elements; Fig. 2c interception of the movement of the surface element using the elasto-plastic working ability of the plastic element;
Fig. 3 ein Last-Zeit-Diagramm zur Darstellung der wäh rend eines Druckanstiegs auftretenden Lastvertei lung. Fig. 3 is a load-time diagram showing the load distribution occurring during a pressure rise.
Die zunächst in Fig. 1 detailliert dargestellte
Vorrichtung 1 dient zur druckstoßabsorbierenden Befestigung
eines Flächenelements 2 an einem Wandelement 3, wobei das
Wandelement 3 beispielsweise ein unbewegliches Bauelement
sein kann und das Flächenelement 2 eine Abdeckung oder dgl. .
Das Flächenelement 2 liegt an einer der druckstoßbelasteten
Seite 4 abgewandten Fläche 5 an. Die einander zugewandten ab
gewandten Fläche 5 des Wandelements 3 und Flächenelements 2
weisen miteinander fluchtende Durchgangsbohrungen 6 auf, die
von einem langgestreckten Befestigungselement 7 durchsetzt
sind. Das Befestigungselement 7 weist nun mindestens einen
elastisch dehnbaren, das Flächenelement 2 nach Abbau der
Druckstoßbelastung im wesentlichen wieder in seine Ursprungs
lage zurückführenden ersten Abschnitt in Form eines elasti
schen Elements 8 sowie mindestens einen zweiten, plastisch
dehnbaren Abschnitt in Form eines plastischen Elements 9 auf,
wobei das plastische Element 9 dann wirksam wird, wenn das
elastische Element 8 unter Belastung des Druckstoßes seine
Endanschlagstellung erreicht hat.The device 1 , initially shown in detail in FIG. 1, serves for the pressure-shock-absorbing fastening of a surface element 2 to a wall element 3 , the wall element 3 being, for example, an immovable component and the surface element 2 being a cover or the like.
The surface element 2 rests on a surface 5 facing away from the pressure shock-loaded side 4. The mutually facing from facing surface 5 of the wall element 3 and surface element 2 have mutually aligned through bores 6 , which are penetrated by an elongated fastening element 7 . The fastening element 7 now has at least one elastically stretchable, the surface element 2 after releasing the pressure surge load essentially returning to its original position, the first section in the form of an elastic element 8 and at least one second, plastically stretchable section in the form of a plastic element 9 , the plastic element 9 becomes effective when the elastic element 8 has reached its end stop position under the pressure surge.
Das elastische Element 8 ist ein Federelement in Form einer auf Druck belastbaren Schraubenfeder 10, die koaxial zum langgestreckten Befestigungselement 7 verläuft. Das plasti sche Element 9 ist als bolzenartiger Stab 11 ausgebildet, der die Durchgangsbohrungen 6 ebenso wie die Schraubenfeder 10 durchsetzt. Die Schraubenfeder 10 ist in einem Gehäuse 12 nach Art eines Federtopfes auf der druckstoßbelasteten Seite 4 des Wandelements 3 angeordnet. Sie wird von einem Kopf 15 des bolzenartigen Stabes 11 in Richtung des Wandelements 3 auf Druck beaufschlagt.The elastic element 8 is a spring element in the form of a coil spring 10 which can be subjected to pressure and which runs coaxially with the elongated fastening element 7 . The plastic element 9 is designed as a bolt-like rod 11 which passes through the through holes 6 as well as the coil spring 10 . The coil spring 10 is arranged in a housing 12 in the manner of a spring cup on the pressure-shock-loaded side 4 of the wall element 3 . It is pressurized by a head 15 of the bolt-like rod 11 in the direction of the wall element 3 .
Aus Fig. 1 ist ferner ersichtlich, daß das Flächenelement 2 und das Wandelement 3 im Überdeckungsbereich 20 einen etwa L-förmigen Querschnitt aufweisen und mit ihren L-Schenkeln 21, 22 im Bereich der Fläche 5 unter dem Druck der Schraubenfeder 10 aneinanderliegen.From Fig. 1 it can also be seen that the surface element 2 and the wall element 3 in the overlap region 20 have an approximately L-shaped cross section and with their L-legs 21 , 22 in the area of the surface 5 lie against each other under the pressure of the coil spring 10 .
Nachfolgend wird auf Fig. 2 Bezug genommen. Bei Kräften, die kleiner sind als die zur Komprimierung der Schraubenfeder 10 notwendigen Kraft bleiben das Flächenele ment 2 und das Wandelement 3 noch in ihrer Ausgangslage (Fig. 2a). Bei höheren Kräften wird die Schraubenfeder 10 kompri miert, so daß das Flächenelement 2 gegenüber dem Wandelement 3 um eine Strecke X1 ausgelenkt wird.In the following, reference is made to FIG. 2. For forces that are smaller than the force required to compress the coil spring 10 , the surface element 2 and the wall element 3 still remain in their starting position ( FIG. 2a). At higher forces, the coil spring 10 is compressed, so that the surface element 2 is deflected relative to the wall element 3 by a distance X 1 .
In Fig. 2b ist die Schraubenfeder 10 bereits auf Block gefahren und nicht mehr in der Lage, eine weitere Aus lenkung des Flächenelements 2 gegenüber dem Wandelement 3 zu zulassen. Bei weiter einwirkenden Kräften wird nun das pla stische Element 9 wirksam und erlaubt eine weitere Auslenkung des Flächenelements 2 gegenüber dem Wandelement 3 um eine Strecke X2. Sobald die Druckstoßbelastung wieder abgenommen hat, wird die Schraubenfeder 10 das Flächenelement 2 wieder in seine Ursprungslage relativ zum Wandelement 3 zurückfüh ren. Infolge der Dehnung des plastischen Elements 9 um die Strecke X2 (siehe Fig. 2) wird aber der Kopf 30 der Schrauben feder 10 um die Strecke X2 weiter aus dem Gehäuse 12 hinaus stehen und ist somit in der Lage, als Anzeigevorrichtung zu wirken.In Fig. 2b, the coil spring 10 has already moved to a block and is no longer able to allow further deflection of the surface element 2 relative to the wall element 3 . With further acting forces, the plastic element 9 is now effective and permits a further deflection of the surface element 2 relative to the wall element 3 by a distance X 2 . As soon as the pressure shock load has decreased again, the helical spring 10 will return the surface element 2 to its original position relative to the wall element 3. As a result of the expansion of the plastic element 9 by the distance X 2 (see FIG. 2), however, the head 30 of the screws spring 10 by the distance X 2 further out of the housing 12 and is thus able to act as a display device.
Das Last-Zeit-Diagramm gemäß Fig. 3 beschreibt einen Druckauf bau während einer Detonation in einem Raum, der von Wandungen begrenzt ist. Zunächst steigt der Druck auf einen Maximalwert an, der durch den Peak 40 dargestellt ist. Nach dem Peak 40 nimmt der Druck etwas ab, aber das Flächenelement 2 unter liegt weiterhin einer durch den Impuls aufgebrachten Bewe gung.The load-time diagram according to Fig. 3 describes a pressure build during a detonation in a space which is bounded by walls. First, the pressure rises to a maximum value, which is represented by the peak 40 . After the peak 40 , the pressure decreases somewhat, but the surface element 2 is still subject to a movement caused by the impulse.
Ist die Schraubenfeder 10 auf Block gefahren (nach dem Peak), übernimmt das plastische Element 9 den statischen Lastanteil unter Ausnutzung seines elastischen und elastoplastischen Ar beitsvermögens. Der in Fig. 3 dargestellte Druckaufbau stellt eine dynamische Beanspruchung der flächigen Elemente (Flächenelement 2, Wandelement 3) im Millisekundenbereich dar.If the coil spring 10 has moved to a block (after the peak), the plastic element 9 takes on the static load share using its elastic and elastoplastic ar working capacity. The pressure build-up shown in FIG. 3 represents a dynamic loading of the flat elements (surface element 2 , wall element 3 ) in the millisecond range.
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE1996138658 DE19638658C2 (en) | 1996-09-20 | 1996-09-20 | Device for pressure shock absorbing fastening of a surface element to a wall element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996138658 DE19638658C2 (en) | 1996-09-20 | 1996-09-20 | Device for pressure shock absorbing fastening of a surface element to a wall element |
Publications (2)
Publication Number | Publication Date |
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DE19638658A1 true DE19638658A1 (en) | 1998-04-16 |
DE19638658C2 DE19638658C2 (en) | 2001-05-03 |
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