EP3613926A1 - Steel mast - Google Patents

Steel mast Download PDF

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Publication number
EP3613926A1
EP3613926A1 EP19192278.0A EP19192278A EP3613926A1 EP 3613926 A1 EP3613926 A1 EP 3613926A1 EP 19192278 A EP19192278 A EP 19192278A EP 3613926 A1 EP3613926 A1 EP 3613926A1
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EP
European Patent Office
Prior art keywords
mast
steel
plates
base plate
plate
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EP19192278.0A
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German (de)
French (fr)
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EP3613926B1 (en
Inventor
Hubert Winter
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European Trans Energy GmbH
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European Trans Energy GmbH
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • E04H12/08—Structures made of specified materials of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2253—Mounting poles or posts to the holder
    • E04H12/2261—Mounting poles or posts to the holder on a flat base

Definitions

  • the invention relates to a steel mast in box section construction.
  • Steel masts of this type are set up, for example, to carry signaling devices, overhead contact line systems or other line systems.
  • the object is to provide such steel masts with as little material as possible for high loads and high torsional rigidity.
  • the steel mast should cause a low wind load and have a visually appealing, slim design. Due to the design, the mast height should be easily adaptable to the requirements and it should be possible to easily mount it on foundations such as driven piles, concrete driven piles, steel driven piles and foundations of all kinds.
  • the steel mast according to the invention achieves these tasks and is characterized in that the steel mast has a cross-section that decreases from the mast base to the mast head, wherein it is formed over at least a large part of its height from multi-wall sheets and flange plates, which are each inclined to one another, alternately connected to one another, preferably welded, are.
  • the web plates are connected to the flange plates at a distance along the flange plate edges, as a result of which flange plate protrusions extending over the height of the mast are formed.
  • a mast foot plate can be provided on the mast foot, which is connectable or connected to the floor or a foundation.
  • the mast base plate can preferably be fastened by means of screw connections with fastening bolts of the foundation.
  • the mast can be set up on any suitable foundation, for example on conventional concrete block foundations with cast-in bolts, concrete step foundations with cast-in bolts, ramming or bored piles with reinforced concrete heads and cast-in bolts, steel piles with connecting bolts, etc.
  • the multi-wall sheets can be provided with bar recesses. To make unauthorized climbing of the mast more difficult, the recesses can also be provided at a certain distance from the ground.
  • the mast foot plate can be fastened by means of a nut and lock nut or washers on the fastening bolts at a distance from the foundation, the space between the mast foot plate and the foundation being filled with grout, concrete or synthetic resin.
  • the steel mast with its mast base plate can be fastened or fastened to the fastening bolts with spaced mounting, counter nuts being provided as alignment nuts for aligning the mast.
  • the mast base plate can have a cutout corresponding to the outer contour of the mast, the mast being welded into this cutout.
  • the mast with its lower ends of the web plates and / or the flange plates can protrude through the mast foot plate and be welded on both sides.
  • One or more filling openings for introducing a filling compound can be provided on the mast base plate.
  • One or more stiffening plates can be provided in the steel mast, which are each fastened to at least two opposing web or flange plates and project through the inner cross section of the mast.
  • the mast head is preferably provided with a mast head plate (3) which closes off the mast at the top.
  • stiffening struts extending from the mast base plate to the flange plates and / or web plates can be provided.
  • the steel mast according to the invention offers advantages over known mast constructions. Compared to flat frame masts, the invention offers a higher strength against stress on the so-called weak side, which is a disadvantage of such flat frame masts.
  • the weak side is usually only exposed to wind forces. Due to the higher load strength of the entire mast according to the invention, the load on the other strong side can be increased at the same time. In addition, the invention has greater torsional rigidity.
  • the invention offers the advantage of a lower wind load, since there is a reduced cross section in height. This is particularly advantageous for long masts. As a result, the maximum load on the mast foot or on the foundation can be reduced with the same equipment and equipment of the mast. It should be borne in mind that with high masts, the wind load on the mast sometimes accounts for 50% or more of the total load for the design of the mast. In addition, the invention also offers greater torsional rigidity with less use of steel.
  • the steel mast according to the invention is formed from two flange plates and two web plates.
  • the two multi-wall sheets can be designed with weight-reducing and architecturally appealing cutouts.
  • the two flange plates and multi-wall sheets are fastened to the mast foot on the mast foot plate, preferably welded on, and taper with increasing height. In comparison to previously known profile masts, a greater spread and a higher load limit can be achieved on the foot.
  • the multi-skin sheets also taper with increasing height.
  • the two flange plates form a rectangular box profile in connection with the two multi-wall sheets, which tapers with increasing height. This results in high torsional rigidity and a higher resistance to loads from all sides.
  • the mast is closed at the mast head with a horizontal mast head plate.
  • the mast length can be shortened in defined steps (e.g. 0.25 m or 0.5 m) on the mast head. This enables smaller mast lengths to be produced, with all other dimensions remaining the same. This makes simple and constant production possible.
  • the mast head can be limited again with the standardized horizontal head plate, on which standardized mast extensions or other devices can be mounted if necessary.
  • the strength of the mast can be adjusted by appropriate choice of sheet thicknesses for the formation of the multi-wall sheets and flange sheets. This allows higher load limits for the mast to be achieved with the same dimensions.
  • horizontal stiffening plates can be welded into the clear inner width of the mast at defined intervals.
  • the mast base plate and the mast head plate also serve to stiffen the mast.
  • stiffening struts and gusset plates can be attached, in particular welded, to improve load transfer on the mast foot.
  • the flange plate protrusions extending along the mast enable the use of clamps for the attachment of fastening parts in order to be able to connect the required equipment to the mast.
  • the mast is placed on its foundation on fastening bolts and fixed with appropriate nuts.
  • the inclination of the mast can be adjusted by using washers or directional nuts below the mast base plate.
  • a space created between the mast base plate and the foundation can be filled with grout, concrete or e.g. Poured synthetic resin and sealed. Pouring out the intermediate space is facilitated by suitable measures, such as the arrangement of the filling opening and the chamfering of the corners of the mast base plate.
  • the mast base plate can be cut out in accordance with the cross section of the mast, so that the mast projects through the mast base plate and can be welded to both sides thereof. This increases the strength of the connection between the mast and the mast footplate. It also makes it easier to galvanize the steel mast, since in this case it is open at the bottom so that the excess zinc can drain off.
  • Fig. 1 the steel mast is shown in a view of one of the web plates 1.
  • the web plates 1 extend from the mast base plate 2 to the mast head plate 3, the distance between the two web plates 1 to the mast head 4 tapering steadily.
  • the web plates 1 are provided as a variant with web recesses 5, which reduces the weight of the mast and the use of materials without adversely affecting the strength of the construction. Due to the web recesses 5, the wind load on the mast is reduced. Furthermore, the web recesses 5 also serve the more appealing optical design. The size and shape of the web recesses 5 is only shown for example and can be adapted to the requirements. To make unauthorized climbing more difficult, it may be advantageous to provide the recesses only from a greater height above the ground.
  • the box profile of the steel mast is further completed by the flange plates 6, which also extend from the mast base plate 2 to the mast head plate 3.
  • the flange plates 6 and the web plates 1 are welded together along the entire length of the mast.
  • a stiffening plate 7 is drawn in dashed lines at a mast height, which is arranged on the inside over the entire mast cross section and is connected, in particular welded, to the web plates 1 and flange plates 6. Distributed over the height of the mast, several stiffening plates 7 can also be arranged, as required by the load to be absorbed and the necessary torsional rigidity.
  • the mast base plate 2 and the mast head plate 3 are welded to the web plates 1 and flange plates 6, and stiffening struts 8 can also be welded on to increase the strength.
  • Fig. 1 also shows schematically in broken form the foundation 9 on which the mast is seated and fastened over the mast base 10. In the foundation 9 fastening bolts 11 are cast, with which the mast is screwed.
  • the Fig. 2 shows a plan view of the mast base plate 2 on the foundation 9. Furthermore, the cross section of the mast resting on the mast base plate 2 is shown.
  • the flange plates 6 are connected to one another by means of the two web plates 1, whereby the box profile is formed.
  • the web plates 1 are offset somewhat inward from the flange plate edges 12, so that flange plate protrusions 13 are formed along the edges of the flange plates 6.
  • the mast base plate 2 has four fastening holes 14 for receiving the fastening bolts 11. Filling openings 15 are provided for the possible pouring of gaps between the mast base plate 2 and the foundation 9, and the chamfer 16 can also facilitate the pouring out of the gap.
  • the Fig. 3 shows the arrangement in the area of the mast base 10 in side view. From the foundation 9, which may be a concrete pile, for example, the fastening bolts 11 protrude upwards and the mast base plate 2 is screwed onto them with nuts 18 and possibly lock nuts 17.
  • the orientation of the mast can be changed by appropriately adjusting the counter nuts 17 below the mast foot plate 2, for example to compensate for an undesired inclination or to achieve a desired inclination.
  • the attachment is carried out by the nuts 18.
  • the lock nuts 17 can also be replaced by washers or washers or supplemented with these.
  • the space that may have formed between the mast base plate 2 and the foundation 9 is preferably poured out with a casting compound 19, which can be, for example, a casting mortar, concrete or plastic.
  • the attachment can also be carried out with distance mounting, the mast being aligned with the lock nuts 17.
  • the Fig. 4 shows an alternative embodiment of the mast base 10.
  • the mast is not closed at the bottom by the mast base plate 2, but is open.
  • the mast base plate 2 is cut out according to the outer contour of the mast and the mast is pushed into the cutout 20 so that it can be welded to both sides of the mast base plate 2. This increases the strength of the connection of the mast to the mast base plate 2.
  • the mast can protrude downwards with a small projection 21.
  • the free opening also makes it easier to galvanize the mast construction, since the zinc can flow in and out better.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Foundations (AREA)

Abstract

Die Erfindung betrifft einen Stahlmast in Kastenprofilbauweise, wobei der Stahlmast einen vom Mastfuß (10) bis zum Mastkopf (4) abnehmenden Querschnitt aufweist, und wobei der Stahlmast über zumindest einen Großteil seiner Höhe aus Stegplatten (1) und Flanschplatten (6) gebildet ist, die jeweils zueinander geneigt abwechselnd miteinander verbunden, bevorzugt verschweißt, sind.The invention relates to a steel mast in a box section construction, the steel mast having a cross section that decreases from the mast base (10) to the mast head (4), and wherein the steel mast is formed from web plates (1) and flange plates (6) over at least a large part of its height, which are mutually inclined, alternately connected to one another, preferably welded.

Description

Die Erfindung betrifft einen Stahlmast in Kastenprofilbauweise.The invention relates to a steel mast in box section construction.

Derartige Stahlmasten werden beispielsweise dazu aufgestellt, um Signalvorrichtungen, Fahrleitungsanlagen oder sonstige Leitungsanlagen zu tragen. Es besteht die Aufgabe, derartige Stahlmasten mit möglichst wenig Materialeinsatz für hohe Belastungen und hohe Torsionssteifigkeit auszustatten. Weiters soll der Stahlmast eine geringe Windlast hervorrufen und eine optisch ansprechende, schlanke Bauform aufweisen. Die Masthöhe soll konstruktionsbedingt leicht an die Erfordernisse anpassbar sein und das Montieren auf Fundamenten, wie Rammpfählen, Betonrammpfählen, Stahlrammpfählen und Fundamenten aller Art, soll einfach möglich sein.Steel masts of this type are set up, for example, to carry signaling devices, overhead contact line systems or other line systems. The object is to provide such steel masts with as little material as possible for high loads and high torsional rigidity. Furthermore, the steel mast should cause a low wind load and have a visually appealing, slim design. Due to the design, the mast height should be easily adaptable to the requirements and it should be possible to easily mount it on foundations such as driven piles, concrete driven piles, steel driven piles and foundations of all kinds.

Der erfindungsgemäße Stahlmast löst diese Aufgaben und ist dadurch gekennzeichnet, dass der Stahlmast einen vom Mastfuß bis zum Mastkopf abnehmenden Querschnitt aufweist, wobei er über zumindest einen Großteil seiner Höhe aus Stegplatten und Flanschplatten gebildet ist, die jeweils zueinander geneigt abwechselnd miteinander verbunden, bevorzugt verschweißt, sind.The steel mast according to the invention achieves these tasks and is characterized in that the steel mast has a cross-section that decreases from the mast base to the mast head, wherein it is formed over at least a large part of its height from multi-wall sheets and flange plates, which are each inclined to one another, alternately connected to one another, preferably welded, are.

Nach einem weiteren Merkmal sind die Stegplatten mit den Flanschplatten entlang der Flanschplattenkanten in einem Abstand verbunden, wodurch über die Höhe des Mastes reichende Flanschplattenüberstände gebildet sind.According to a further feature, the web plates are connected to the flange plates at a distance along the flange plate edges, as a result of which flange plate protrusions extending over the height of the mast are formed.

Weiters kann am Mastfuß eine Mastfußplatte vorgesehen sein, die mit dem Boden oder einem Fundament verbindbar oder verbunden ist. Die Mastfußplatte ist bevorzugt mittels Schraubverbindungen mit Befestigungsbolzen des Fundaments befestigbar.Furthermore, a mast foot plate can be provided on the mast foot, which is connectable or connected to the floor or a foundation. The mast base plate can preferably be fastened by means of screw connections with fastening bolts of the foundation.

Der Mast kann auf jedem geeigneten Fundament aufgestellt werden, beispielsweise auf herkömmlichen Betonblock-Fundamenten mit eingegossenen Bolzen, Beton-Stufenfundamenten mit eingegossenen Bolzen, Ramm- oder Bohrpfählen mit Stahlbetonkopf und eingegossenen Bolzen, Stahlpfählen mit Anschlussbolzen, usw.. In einer Ausführung können die Stegplatten mit Stegausnehmungen versehen sein. Um ein unbefugtes Besteigen des Mastes zu erschweren, können die Ausnehmungen auch erst in einem gewissen Abstand vom Boden vorgesehen sein.The mast can be set up on any suitable foundation, for example on conventional concrete block foundations with cast-in bolts, concrete step foundations with cast-in bolts, ramming or bored piles with reinforced concrete heads and cast-in bolts, steel piles with connecting bolts, etc. In one version, the multi-wall sheets can be provided with bar recesses. To make unauthorized climbing of the mast more difficult, the recesses can also be provided at a certain distance from the ground.

Nach weiteren Merkmalen kann die Mastfußplatte mittels Mutter und Gegenmutter oder Beilagscheiben auf den Befestigungsbolzen in einem Abstand vom Fundament befestigbar sein, wobei der Raum zwischen Mastfußplatte und Fundament mit Vergussmörtel, Beton oder Kunstharz ausgefüllt ist.According to further features, the mast foot plate can be fastened by means of a nut and lock nut or washers on the fastening bolts at a distance from the foundation, the space between the mast foot plate and the foundation being filled with grout, concrete or synthetic resin.

Alternativ kann der Stahlmast mit seiner Mastfußplatte mit Abstandsmontage auf den Befestigungsbolzen befestigbar oder befestigt sein, wobei zum Ausrichten des Mastes Gegenmuttern als Richtmuttern vorgesehen sind.Alternatively, the steel mast with its mast base plate can be fastened or fastened to the fastening bolts with spaced mounting, counter nuts being provided as alignment nuts for aligning the mast.

Nach einer weiteren Ausgestaltung der Erfindung kann die Mastfußplatte einen der Außenkontur des Mastes entsprechenden Ausschnitt aufweisen, wobei der Mast in diesem Ausschnitt eingeschweißt ist.According to a further embodiment of the invention, the mast base plate can have a cutout corresponding to the outer contour of the mast, the mast being welded into this cutout.

Dabei kann der Mast mit seinen unteren Enden der Stegplatten und/oder der Flanschplatten die Mastfußplatte durchragen und beidseitig verschweißt sein.The mast with its lower ends of the web plates and / or the flange plates can protrude through the mast foot plate and be welded on both sides.

An der Mastfußplatte können eine oder mehrere Füllöffnungen zum Einbringen einer Füllmasse, wie z.B. Füllmörtel, Beton oder Kunstharz, vorgesehen sein. Im Stahlmast können eine oder mehrere Versteifungsplatten vorgesehen sein, die zumindest jeweils an zwei einander gegenüberliegenden Steg- oder Flanschplatten befestigt sind und den Innenquerschnitt des Mastes durchragen.One or more filling openings for introducing a filling compound, such as filling mortar, concrete or synthetic resin, can be provided on the mast base plate. One or more stiffening plates can be provided in the steel mast, which are each fastened to at least two opposing web or flange plates and project through the inner cross section of the mast.

Der Mastkopf ist bevorzugt mit einer den Mast oben abschließenden Mastkopfplatte (3) versehen.The mast head is preferably provided with a mast head plate (3) which closes off the mast at the top.

Weiters können von der Mastfußplatte zu den Flanschplatten und/oder Stegplatten reichende Versteifungsstreben vorgesehen sein.Furthermore, stiffening struts extending from the mast base plate to the flange plates and / or web plates can be provided.

Der erfindungsgemäße Stahlmast bietet Vorteile gegenüber bekannten Mastkonstruktionen. Gegenüber Rahmenflachmasten bietet die Erfindung eine höhere Festigkeit gegen Belastung auf der sogenannten schwachen Seite, die ein Nachteil solcher Rahmenflachmasten ist. Die Belastung auf der schwachen Seite erfolgt üblicherweise nur durch Windkräfte. Zufolge der höheren Belastungsstärke des gesamten erfindungsgemäßen Mastes kann gleichzeitig die Belastung auf der anderen starken Seite erhöht werden. Überdies weist die Erfindung eine größere Torsionssteifigkeit auf.The steel mast according to the invention offers advantages over known mast constructions. Compared to flat frame masts, the invention offers a higher strength against stress on the so-called weak side, which is a disadvantage of such flat frame masts. The weak side is usually only exposed to wind forces. Due to the higher load strength of the entire mast according to the invention, the load on the other strong side can be increased at the same time. In addition, the invention has greater torsional rigidity.

Gegenüber sogenannten HE-Masten, die im Wesentlichen den Querschnitt eines H-Profils aufweisen, bietet die Erfindung den Vorteil einer geringeren Windlast, da ein verringerter Querschnitt in der Höhe vorliegt. Dies ist insbesondere bei langen Masten von Vorteil. Dadurch kann die maximale Belastung auf den Mastfuß bzw. auf das Fundament bei gleicher Bestückung und Ausrüstung des Mastes reduziert werden. Zu bedenken ist, dass bei hohen Masten die Windlast am Mast mitunter 50 % und mehr der Gesamtbelastung für die Auslegung des Mastes ausmacht. Überdies bietet auch hier die Erfindung eine größere Torsionssteifigkeit bei geringerem Stahleinsatz.Compared to so-called HE masts, which essentially have the cross section of an H profile, the invention offers the advantage of a lower wind load, since there is a reduced cross section in height. This is particularly advantageous for long masts. As a result, the maximum load on the mast foot or on the foundation can be reduced with the same equipment and equipment of the mast. It should be borne in mind that with high masts, the wind load on the mast sometimes accounts for 50% or more of the total load for the design of the mast. In addition, the invention also offers greater torsional rigidity with less use of steel.

Prinzipiell ist der erfindungsgemäße Stahlmast aus jeweils zwei Flanschplatten und zwei Stegplatten ausgebildet. Die beiden Stegplatten können mit gewichtsreduzierenden und architektonisch ansprechenden Ausschnitten ausgeführt werden. Die beiden Flanschplatten und Stegplatten sind am Mastfuß an der Mastfußplatte befestigt, bevorzugt angeschweißt, und verjüngen sich mit zunehmender Höhe. Im Vergleich zu bisher bekannten Profilmasten kann dadurch am Fuß eine größere Spreizung und eine höhere Belastungsgrenze erzielt werden.In principle, the steel mast according to the invention is formed from two flange plates and two web plates. The two multi-wall sheets can be designed with weight-reducing and architecturally appealing cutouts. The two flange plates and multi-wall sheets are fastened to the mast foot on the mast foot plate, preferably welded on, and taper with increasing height. In comparison to previously known profile masts, a greater spread and a higher load limit can be achieved on the foot.

Auch die Stegplatten verjüngen sich mit zunehmender Höhe. Die beiden Flanschplatten bilden in Verbindung mit den beiden Stegplatten ein Rechteckkastenprofil, welches sich mit zunehmender Höhe verjüngt. Dies bringt eine hohe Torsionssteifigkeit und eine höhere Widerstandskraft gegen Belastungen aus allen Seiten mit sich.The multi-skin sheets also taper with increasing height. The two flange plates form a rectangular box profile in connection with the two multi-wall sheets, which tapers with increasing height. This results in high torsional rigidity and a higher resistance to loads from all sides.

Durch die Verjüngung des Mastes zum Mastkopf hin wird die Windlast beträchtlich reduziert und damit auch die Gesamtbelastung des Mastes und des Fundamentes verkleinert. Somit ist eine kleinere Auslegung bei gleichbleibender Festigkeit und kleinerem Stahleinsatz möglich.By tapering the mast towards the mast head, the wind load is considerably reduced and the overall load on the mast and the foundation is also reduced. This enables a smaller design with the same strength and smaller steel use.

Der Mast ist am Mastkopf mit einer waagrechten Mastkopfplatte abgeschlossen.The mast is closed at the mast head with a horizontal mast head plate.

Weiters kann in vorteilhafter Weise die Mastlänge in definierten Schritten (z.B. zu je 0,25 m oder 0,5 m) am Mastkopf gekürzt werden. Damit lassen sich kleinere Mastlängen herstellen, wobei alle anderen Abmessungen gleich bleiben. Dies macht eine einfache und gleich bleibende Fertigung möglich. Nach dem Kürzen des Mastes kann der Mastkopf wieder mit der standardisierten waagrechten Kopfplatte begrenzt werden, auf der bei Bedarf standardisierte Mastverlängerungen oder sonstige Einrichtungen montiert werden können. Selbstverständlich kann die Festigkeit des Mastes durch entsprechende Wahl der Blechstärken für die Ausbildung der Stegplatten und Flanschplatten eingestellt werden. Damit lassen sich bei sonst gleichen Abmessungen höhere Belastungsgrenzen für den Mast erzielen.Furthermore, the mast length can be shortened in defined steps (e.g. 0.25 m or 0.5 m) on the mast head. This enables smaller mast lengths to be produced, with all other dimensions remaining the same. This makes simple and constant production possible. After shortening the mast, the mast head can be limited again with the standardized horizontal head plate, on which standardized mast extensions or other devices can be mounted if necessary. Of course, the strength of the mast can be adjusted by appropriate choice of sheet thicknesses for the formation of the multi-wall sheets and flange sheets. This allows higher load limits for the mast to be achieved with the same dimensions.

Zur Erhöhung der Steifigkeit können in definierten Abständen waagrechte Versteifungsbleche in die lichte innere Weite des Mastes eingeschweißt werden. Die Mastfußplatte und auch die Mastkopfplatte dienen ebenfalls der Versteifung des Mastes.To increase the rigidity, horizontal stiffening plates can be welded into the clear inner width of the mast at defined intervals. The mast base plate and the mast head plate also serve to stiffen the mast.

Im Mastfußbereich können Versteifungsstreben und Knotenbleche für die Verbesserung des Lastabtrags auf den Mastfuß angebracht, insbesondere eingeschweißt, werden. Die entlang des Mastes reichenden Flanschplattenüberstände ermöglichen den Einsatz von Klemmen für den Anbau von Befestigungsteilen, um benötigte Einrichtungen mit dem Mast verbinden zu können.In the mast foot area, stiffening struts and gusset plates can be attached, in particular welded, to improve load transfer on the mast foot. The flange plate protrusions extending along the mast enable the use of clamps for the attachment of fastening parts in order to be able to connect the required equipment to the mast.

Der Mast wird auf seinem Fundament auf Befestigungsbolzen aufgesetzt und mit entsprechenden Muttern fixiert. Durch den Einsatz von Beilagscheiben oder Richtmuttern unterhalb der Mastfußplatte kann die Neigung des Mastes eingestellt werden. Ein dabei entstehender Zwischenraum zwischen Mastfußplatte und Fundament kann mit Vergussmörtel, Beton oder z.B. Kunstharz ausgegossen und abgedichtet werden. Das Ausgießen des Zwischenraums wird durch geeignete Maßnahmen erleichtert, wie z.B. die Anordnung von Füllöffnung und die Abfasung der Ecken der Mastfußplatte.The mast is placed on its foundation on fastening bolts and fixed with appropriate nuts. The inclination of the mast can be adjusted by using washers or directional nuts below the mast base plate. A space created between the mast base plate and the foundation can be filled with grout, concrete or e.g. Poured synthetic resin and sealed. Pouring out the intermediate space is facilitated by suitable measures, such as the arrangement of the filling opening and the chamfering of the corners of the mast base plate.

Alternativ kann die Mastfußplatte gemäß dem Querschnitt des Mastes ausgeschnitten sein, sodass der Mast die Mastfußplatte durchragt und an deren beiden Seiten angeschweißt werden kann. Dies erhöht die Festigkeit der Verbindung des Mastes mit der Mastfußplatte. Weiters erleichtert es das Verzinken des Stahlmastes, da dieser in diesem Fall unten offen ist, sodass das überschüssige Zink abfließen kann.Alternatively, the mast base plate can be cut out in accordance with the cross section of the mast, so that the mast projects through the mast base plate and can be welded to both sides thereof. This increases the strength of the connection between the mast and the mast footplate. It also makes it easier to galvanize the steel mast, since in this case it is open at the bottom so that the excess zinc can drain off.

Nachfolgend wird die Erfindung anhand von Ausführungsbeispielen in schematischen Zeichnungen näher erläutert.

  • Fig. 1 zeigt schematisch die Seitenansicht eines erfindungsgemäßen Stahlmastes, wobei der Mast in der Höhe abgebrochen ist und auch das Fundament nur teilweise dargestellt ist.
  • Fig. 2 zeigt die Mastfußplatte und den Querschnitt des erfindungsgemäßen Stahlmastes.
  • Fig. 3 zeigt eine seitliche Ansicht des Mastfußes auf dem Fundament in vergrößerter Darstellung.
  • Fig. 4 zeigt die Seitenansicht einer alternativen Ausgestaltung des Stahlmastes.
The invention is explained in more detail below with the aid of exemplary embodiments in schematic drawings.
  • Fig. 1 shows schematically the side view of a steel mast according to the invention, the mast having broken off in height and the foundation is only partially shown.
  • Fig. 2 shows the mast base plate and the cross section of the steel mast according to the invention.
  • Fig. 3 shows a side view of the mast base on the foundation in an enlarged view.
  • Fig. 4 shows the side view of an alternative embodiment of the steel mast.

In Fig. 1 ist der Stahlmast in Ansicht auf eine der Stegplatten 1 dargestellt. Die Stegplatten 1 reichen von der Mastfußplatte 2 bis zur Mastkopfplatte 3, wobei sich der Abstand zwischen den beiden Stegplatten 1 zum Mastkopf 4 hin stetig verjüngt.In Fig. 1 the steel mast is shown in a view of one of the web plates 1. The web plates 1 extend from the mast base plate 2 to the mast head plate 3, the distance between the two web plates 1 to the mast head 4 tapering steadily.

Die Stegplatten 1 sind als eine Variante mit Stegausnehmungen 5 versehen, wodurch das Gewicht des Mastes und der Materialeinsatz verringert wird, ohne die Festigkeit der Konstruktion nachteilig zu beeinflussen. Durch die Stegausnehmungen 5 wird die Windbelastung des Mastes verringert. Weiters dienen die Stegausnehmungen 5 auch der ansprechenderen optischen Ausgestaltung. Die Größe und Form der Stegausnehmungen 5 ist nur beispielsweise dargestellt und kann den Erfordernissen angepasst werden. Um unbefugtes Klettern zu erschweren, kann es vorteilhaft sein, die Ausnehmungen erst ab einer größeren Höhe über Boden vorzusehen.The web plates 1 are provided as a variant with web recesses 5, which reduces the weight of the mast and the use of materials without adversely affecting the strength of the construction. Due to the web recesses 5, the wind load on the mast is reduced. Furthermore, the web recesses 5 also serve the more appealing optical design. The size and shape of the web recesses 5 is only shown for example and can be adapted to the requirements. To make unauthorized climbing more difficult, it may be advantageous to provide the recesses only from a greater height above the ground.

Das Kastenprofil des Stahlmastes wird weiters durch die Flanschplatten 6 vervollständig, die sich ebenfalls von der Mastfußplatte 2 bis zur Mastkopfplatte 3 erstrecken. Die Flanschplatten 6 und die Stegplatten 1 sind der ganzen Mastlänge nach miteinander verschweißt.The box profile of the steel mast is further completed by the flange plates 6, which also extend from the mast base plate 2 to the mast head plate 3. The flange plates 6 and the web plates 1 are welded together along the entire length of the mast.

In Fig. 1 ist in einer Masthöhe strichliert eine Versteifungsplatte 7 eingezeichnet, die innen über den gesamten Mastquerschnitt angeordnet ist und mit den Stegplatten 1 und Flanschplatten 6 verbunden, insbesondere verschweißt, ist. Über die Höhe des Mastes verteilt können auch mehrere Versteifungsplatten 7 angeordnet werden, wie es die aufzunehmende Belastung und die nötige Torsionssteifigkeit erfordert.In Fig. 1 a stiffening plate 7 is drawn in dashed lines at a mast height, which is arranged on the inside over the entire mast cross section and is connected, in particular welded, to the web plates 1 and flange plates 6. Distributed over the height of the mast, several stiffening plates 7 can also be arranged, as required by the load to be absorbed and the necessary torsional rigidity.

Die Mastfußplatte 2 und die Mastkopfplatte 3 sind mit den Stegplatten 1 und Flanschplatten 6 verschweißt, wobei zur Erhöhung der Festigkeit auch noch Versteifungsstreben 8 angeschweißt werden können.The mast base plate 2 and the mast head plate 3 are welded to the web plates 1 and flange plates 6, and stiffening struts 8 can also be welded on to increase the strength.

Wie schon oben beschrieben, kann die Höhe des Stahlmastes auf einfache Weise dadurch gekürzt werden, dass an geeigneter Stelle der Stahlmast durchtrennt wird und die Mastkopfplatte 3 auf den verbleibenden Teil des Stahlmastes aufgeschweißt wird. Fig. 1 zeigt auch schematisch in abgebrochener Darstellung das Fundament 9, auf dem der Mast über den Mastfuß 10 aufsitzt und befestigt ist. Im Fundament 9 sind Befestigungsbolzen 11 eingegossen, mit denen der Mast verschraubt wird.As already described above, the height of the steel mast can be reduced in a simple manner by cutting through the steel mast at a suitable point and welding the mast head plate 3 onto the remaining part of the steel mast. Fig. 1 also shows schematically in broken form the foundation 9 on which the mast is seated and fastened over the mast base 10. In the foundation 9 fastening bolts 11 are cast, with which the mast is screwed.

Die Fig. 2 zeigt eine Aufsicht auf die Mastfußplatte 2 auf dem Fundament 9. Weiters ist der auf der Mastfußplatte 2 aufliegende Querschnitt des Mastes dargestellt.The Fig. 2 shows a plan view of the mast base plate 2 on the foundation 9. Furthermore, the cross section of the mast resting on the mast base plate 2 is shown.

Die Flanschplatten 6 sind mittels der beiden Stegplatten 1 miteinander verbunden, wodurch das Kastenprofil gebildet ist. Die Stegplatten 1 sind von den Flanschplattenkanten 12 etwas nach innen versetzt, sodass Flanschplattenüberstände 13 entlang der Kanten der Flanschplatten 6 ausgebildet sind.The flange plates 6 are connected to one another by means of the two web plates 1, whereby the box profile is formed. The web plates 1 are offset somewhat inward from the flange plate edges 12, so that flange plate protrusions 13 are formed along the edges of the flange plates 6.

Die Mastfußplatte 2 weist vier Befestigungslöcher 14 für die Aufnahme der Befestigungsbolzen 11 auf. Für das etwaige Ausgießen von Zwischenräumen zwischen der Mastfußplatte 2 und dem Fundament 9 sind Füllöffnungen 15 vorgesehen, wobei auch die Abfasung 16 das Ausgießen des Zwischenraums erleichtern kann.The mast base plate 2 has four fastening holes 14 for receiving the fastening bolts 11. Filling openings 15 are provided for the possible pouring of gaps between the mast base plate 2 and the foundation 9, and the chamfer 16 can also facilitate the pouring out of the gap.

Die Fig. 3 zeigt die Anordnung im Bereich des Mastfußes 10 in Seitenansicht. Aus dem Fundament 9, welches beispielsweise ein Betonrammpfahl sein kann, ragen die Befestigungsbolzen 11 nach oben und auf ihnen wird die Mastfußplatte 2 mit Muttern 18 und eventuell Gegenmuttern 17 verschraubt.The Fig. 3 shows the arrangement in the area of the mast base 10 in side view. From the foundation 9, which may be a concrete pile, for example, the fastening bolts 11 protrude upwards and the mast base plate 2 is screwed onto them with nuts 18 and possibly lock nuts 17.

Durch entsprechendes Einstellen der unterhalb der Mastfußplatte 2 liegenden Gegenmuttern 17 kann die Ausrichtung des Mastes verändert werden, beispielsweise zum Ausgleich einer ungewünschten Schrägstellung oder zur Erzielung einer gewünschten Schrägstellung.The orientation of the mast can be changed by appropriately adjusting the counter nuts 17 below the mast foot plate 2, for example to compensate for an undesired inclination or to achieve a desired inclination.

Die Befestigung erfolgt durch die Muttern 18. Die Gegenmuttern 17 können auch durch Beilagscheiben oder Unterlagsplatten ersetzt oder mit diesen ergänzt werden.The attachment is carried out by the nuts 18. The lock nuts 17 can also be replaced by washers or washers or supplemented with these.

Der etwa entstandene Zwischenraum zwischen der Mastfußplatte 2 und dem Fundament 9 wird bevorzugt mit einer Vergussmasse 19 ausgegossen, die beispielsweise ein Vergussmörtel, Beton oder Kunststoff sein kann. Die Befestigung kann auch mit Abstandsmontage erfolgen, wobei das Ausrichten des Mastes mit den Gegenmuttern 17 erfolgt.The space that may have formed between the mast base plate 2 and the foundation 9 is preferably poured out with a casting compound 19, which can be, for example, a casting mortar, concrete or plastic. The attachment can also be carried out with distance mounting, the mast being aligned with the lock nuts 17.

Die Fig. 4 zeigt eine alternative Ausgestaltung des Mastfußes 10. Der Mast ist unten nicht durch die Mastfußplatte 2 abgeschlossen, sondern offen. Die Mastfußplatte 2 ist entsprechend der Außenkontur des Mastes ausgeschnitten und der Mast ist in den Ausschnitt 20 eingeschoben, sodass er zu beiden Seiten der Mastfußplatte 2 verschweißt sein kann. Dies erhöht die Festigkeit der Verbindung des Mastes mit der Mastfußplatte 2. Wie in der Figur dargestellt, kann der Mast mit einem kleinen Überstand 21 nach unten ragen. Die freie Öffnung erleichtert auch das Verzinken der Mastkonstruktion, da das Zink besser ein- und abfließen kann.The Fig. 4 shows an alternative embodiment of the mast base 10. The mast is not closed at the bottom by the mast base plate 2, but is open. The mast base plate 2 is cut out according to the outer contour of the mast and the mast is pushed into the cutout 20 so that it can be welded to both sides of the mast base plate 2. This increases the strength of the connection of the mast to the mast base plate 2. As shown in the figure, the mast can protrude downwards with a small projection 21. The free opening also makes it easier to galvanize the mast construction, since the zinc can flow in and out better.

Bei der Montage ist diese Alternative besonders für die Abstandsmontage von Vorteil. Die Schweißnähte oberhalb und unterhalb der Mastfußplatte können einfacher ausgeführt sein, als bei stumpf aufgeschweißten Masten und Versteifungen, wie Knotenbleche, können entfallen oder reduziert werden.When mounting this alternative is particularly advantageous for distance mounting. The weld seams above and below the mast base plate can be made simpler than with butt welded masts and stiffeners, such as gusset plates, can be omitted or reduced.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Stegplatteweb plate
22
MastfußplatteMastfußplatte
33
MastkopfplatteMast head plate
44
Mastkopfmasthead
55
StegausnehmungenStegausnehmungen
66
Flanschplattenflange plates
77
Versteifungsplattestiffening plate
88th
Versteifungsstrebenstiffening struts
99
Fundamentfoundation
1010
Mastfußmast
1111
Befestigungsbolzenmounting bolts
1212
FlanschplattenkantenFlanschplattenkanten
1313
FlanschplattenüberstandFlanschplattenüberstand
1414
Befestigungslochmounting hole
1515
Füllöffnungenfilling openings
1616
Abfasungchamfer
1717
Gegenmutterlocknut
1818
Muttermother
1919
Vergussmassepotting compound
2020
Ausschnittneckline
2121
ÜberstandGot over

Claims (12)

Stahlmast in Kastenprofilbauweisewobei, - der Stahlmast einen vom Mastfuß (10) bis zum Mastkopf (4) abnehmenden Querschnitt aufweist, und - der Stahlmast über zumindest einen Großteil seiner Höhe aus Stegplatten (1) und Flanschplatten (6) gebildet ist, die jeweils zueinander geneigt abwechselnd miteinander verbunden, bevorzugt verschweißt, sind, dadurch gekennzeichnet, dass die Stegplatten (1) mit den Flanschplatten (6) entlang der Flanschplattenkanten (12) in einem Abstand verbunden sind, wodurch über die Höhe des Mastes reichende Flanschplattenüberstände (13) gebildet sind.Steel mast in box section construction, - The steel mast has a decreasing cross-section from the mast base (10) to the mast head (4), and the steel mast is formed over at least a large part of its height from web plates (1) and flange plates (6), which are inclined to one another and alternately connected, preferably welded, characterized in that the web plates (1) are connected to the flange plates (6) along the flange plate edges (12) at a distance, whereby flange plate projections (13) extending over the height of the mast are formed. Stahlmast nach Anspruch 1, dadurch gekennzeichnet, dass am Mastfuß (10) eine Mastfußplatte (2) vorgesehen ist, die mit dem Boden oder einem Fundament (9) verbindbar oder verbunden ist.Steel mast according to claim 1, characterized in that a mast foot plate (2) is provided on the mast foot (10), which is connectable or connected to the floor or a foundation (9). Stahlmast nach Anspruch 2, dadurch gekennzeichnet, dass die Mastfußplatte (2) mittels Schraubverbindungen mit Befestigungsbolzen (11) des Fundaments (9) befestigbar ist.Steel mast according to claim 2, characterized in that the mast base plate (2) can be fastened by means of screw connections with fastening bolts (11) of the foundation (9). Stahlmast nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Mastfußplatte (2) mittels Mutter (18) und Gegenmutter (17) oder Beilagscheiben auf den Befestigungsbolzen (11) in einem Abstand vom Fundament (9) befestigbar ist, und dass der Raum zwischen Mastfußplatte (2) und Fundament (9) mit Vergussmörtel, Beton oder Kunstharz ausgefüllt ist.Steel mast according to claim 2 or 3, characterized in that the mast base plate (2) by means of nut (18) and lock nut (17) or washers on the fastening bolts (11) can be fastened at a distance from the foundation (9), and that the space between Mast base plate (2) and foundation (9) is filled with grout, concrete or synthetic resin. Stahlmast nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Mastfußplatte (2) mit Abstandsmontage auf den Befestigungsbolzen (11) befestigbar oder befestigt ist, wobei zum Ausrichten des Mastes Gegenmuttern (17) als Richtmuttern vorgesehen sind.Steel mast according to one of claims 2 to 4, characterized in that the mast base plate (2) can be fastened or fastened to the fastening bolts (11) by spaced mounting, counter nuts (17) being provided as alignment nuts for aligning the mast. Stahlmast nach einem der vorhervorgehenden Ansprüche 2 bis 5, dadurch gekennzeichnet, dass die Mastfußplatte (2) einen der Außenkontur des Mastes entsprechenden Ausschnitt (20) aufweist und der Mast in diesem Ausschnitt (20) eingeschweißt ist.Steel mast according to one of the preceding claims 2 to 5, characterized in that the mast base plate (2) has a cutout (20) corresponding to the outer contour of the mast and the mast is welded into this cutout (20). Stahlmast nach Anspruch 6, dadurch gekennzeichnet, dass die unteren Enden der Stegplatten (1) und/oder der Flanschplatten (6) die Mastfußplatte (2) durchragen und beidseitig verschweißt sind.Steel mast according to claim 6, characterized in that the lower ends of the web plates (1) and / or the flange plates (6) project through the mast foot plate (2) and are welded on both sides. Stahlmast nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass an der Mastfußplatte (2) eine oder mehrere Füllöffnungen (15) zum Einbringen einer Füllmasse (19), wie z.B. Füllmörtel, Beton oder Kunstharz, vorgesehen sind.Steel mast according to one of claims 2 to 7, characterized in that one or more filling openings (15) for introducing a filling compound (19), such as filling mortar, concrete or synthetic resin, are provided on the mast base plate (2). Stahlmast nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Stegplatten (1) mit Stegausnehmungen (5) versehen sind.Steel mast according to one of claims 1 to 8, characterized in that the web plates (1) are provided with web recesses (5). Stahlmast nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass im Stahlmast eine oder mehrere Versteifungsplatten (7) vorgesehen sind, die zumindest jeweils an zwei einander gegenüberliegenden Steg- oder Flanschplatten (1, 6) befestigt sind und den Innenquerschnitt des Mastes durchragen.Steel mast according to one of claims 1 to 9, characterized in that one or more stiffening plates (7) are provided in the steel mast, which are each fastened to at least two opposing web or flange plates (1, 6) and project through the inner cross section of the mast. Stahlmast nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der Mastkopf (4) mit einer den Mast oben abschließenden Mastkopfplatte (3) vorgesehen ist.Steel mast according to one of claims 1 to 10, characterized in that the mast head (4) is provided with a mast head plate (3) which closes the mast at the top. Stahlmast nach einem der Ansprüche 2 bis 11, dadurch gekennzeichnet, dass von der Mastfußplatte (2) zu den Flanschplatten (6) und/oder Stegplatten (1) reichende Versteifungsstreben (8) vorgesehen sind.Steel mast according to one of claims 2 to 11, characterized in that stiffening struts (8) extending from the mast base plate (2) to the flange plates (6) and / or web plates (1) are provided.
EP19192278.0A 2018-08-22 2019-08-19 Steel mast Active EP3613926B1 (en)

Applications Claiming Priority (1)

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ATA50712/2018A AT521639B1 (en) 2018-08-22 2018-08-22 Steel mast

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR782133A (en) * 1934-02-24 1935-05-28 Hauts Fourneaux Sa Metal post
US2492882A (en) * 1946-03-18 1949-12-27 Lillian W Olmsted Steel post
ES2068747A2 (en) * 1993-03-04 1995-04-16 Marcelino Jimenez Belinchon Co Tubular metal support for overhead electric power lines or the like
EP1114904A1 (en) * 2000-01-06 2001-07-11 R.C.M. Ankertec B.V. Fixing structure and method for the installation thereof
US20090272053A1 (en) * 2008-03-19 2009-11-05 Clifford Dent Ground anchor assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1959756A (en) * 1931-08-19 1934-05-22 Pittsburgh Crucible Steel Comp Columnar structure
DE10045735B4 (en) * 2000-09-15 2008-04-03 Vetter Fördertechnik GmbH Fixing the column of a column slewing crane on a concrete foundation
DE102008039965A1 (en) * 2008-08-27 2010-03-04 Ed. Züblin Ag Arrangement for fixing posts for protective walls

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR782133A (en) * 1934-02-24 1935-05-28 Hauts Fourneaux Sa Metal post
US2492882A (en) * 1946-03-18 1949-12-27 Lillian W Olmsted Steel post
ES2068747A2 (en) * 1993-03-04 1995-04-16 Marcelino Jimenez Belinchon Co Tubular metal support for overhead electric power lines or the like
EP1114904A1 (en) * 2000-01-06 2001-07-11 R.C.M. Ankertec B.V. Fixing structure and method for the installation thereof
US20090272053A1 (en) * 2008-03-19 2009-11-05 Clifford Dent Ground anchor assembly

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AT521639B1 (en) 2020-07-15
AT521639A1 (en) 2020-03-15

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