CA2324111A1 - Bar-type supporting frame with bar and means for introducing or transmitting forces and/or bending moments into the bar - Google Patents
Bar-type supporting frame with bar and means for introducing or transmitting forces and/or bending moments into the bar Download PDFInfo
- Publication number
- CA2324111A1 CA2324111A1 CA002324111A CA2324111A CA2324111A1 CA 2324111 A1 CA2324111 A1 CA 2324111A1 CA 002324111 A CA002324111 A CA 002324111A CA 2324111 A CA2324111 A CA 2324111A CA 2324111 A1 CA2324111 A1 CA 2324111A1
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- Canada
- Prior art keywords
- bar
- supporting frame
- type supporting
- sleeve
- bending moments
- Prior art date
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Classifications
-
- 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
- E04H12/24—Cross arms
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Materials For Medical Uses (AREA)
- Prostheses (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Reinforcement Elements For Buildings (AREA)
- Tents Or Canopies (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a device for introducing or transmitting forces and/or bending moments into the bar of a bar-type supporting frame and to a bar-type supporting frame (1) which has such a device. Said device comprises at least one metal sleeve (4, 5) which is resistant to bending, adjusted to the shape of the bar cross-section and can be attached to the bar with a nonpositive fit by way of an intermediate layer in the form of a self-adhesive coat (9). The sleeve has at least one connecting means (6, 7) on its outer circumference at the level of which the forces and/or bending moments can be introduced. According to a preferred version of the invention the sleeve comprises a closed load-carrying ring which can be pulled over the bar. The sleeves attached to the bar are also used for fixing an external earth connection.
Description
06-SEP-2000 15:38 CA 02324111 2000-09-15 P.025 Description Bar-type supporting frame with bar and means for introducing or transmitting forces and/or bending moments into the bar The invention relates to a bar-type supporting frame with a bar and with means for introducing or transmitting forces and/or bending moments into the bar.
A bar-type supporting game is understood in terms of stati.cs as an arrangement of one or more bars statica7,ly coupled to one another, on which ~rarious load bodies or carrying or tensioning cables are fastened. Bar-type supporting games may accordingly comprise individual masts, as are used in overhead line and contact line systems, yr else entire supporting frameworks, as axe used for example in the construction of factory buildings. The bar-type supporting frames may be designed as metal. or reinforced-concrete types of construction. Load bodies may be, for example, extension arms or wheel tensioners, as are used in catenary systems for the securing and end tensioning of the contact wires and carrying cables. Load bodies may also be roadway lights ar similar bodies which are supported by masts. The aforementioned carx~y~.ng or tensioning cables are not only used for the end tensioning of the contact wires and carrying cables, they can also be provided for back anchorage, for example in the case of load transmission into a back anchor. Similarly, they can be used for the suspension ar end tensioning for example of the roadway lights mentioned.
To introduce the {tensile) .forces and/or bending moments occurring in such bar-type supporting frames, in particular in those for high-power catenaries, into a bar or mast, or to transmit them AMENDED SHEET
06-SEP-2000 15:39 CA 02324111 2000-09-15 P.026 GR g$ Q 31$2 P
gcT~~E99~aos6~
- 1a -i~to a back anchor, relatively complex screwed and welded eonstruCtions comprising angle section parts were p7reviously required. These were fastened on tensioning bands or oz~
AMENDED SHEET
06-SEP-2000 15:33 CA 02324111 2000-09-15 P.005 GR 98 P 31$2 P
A bar-type supporting game is understood in terms of stati.cs as an arrangement of one or more bars statica7,ly coupled to one another, on which ~rarious load bodies or carrying or tensioning cables are fastened. Bar-type supporting games may accordingly comprise individual masts, as are used in overhead line and contact line systems, yr else entire supporting frameworks, as axe used for example in the construction of factory buildings. The bar-type supporting frames may be designed as metal. or reinforced-concrete types of construction. Load bodies may be, for example, extension arms or wheel tensioners, as are used in catenary systems for the securing and end tensioning of the contact wires and carrying cables. Load bodies may also be roadway lights ar similar bodies which are supported by masts. The aforementioned carx~y~.ng or tensioning cables are not only used for the end tensioning of the contact wires and carrying cables, they can also be provided for back anchorage, for example in the case of load transmission into a back anchor. Similarly, they can be used for the suspension ar end tensioning for example of the roadway lights mentioned.
To introduce the {tensile) .forces and/or bending moments occurring in such bar-type supporting frames, in particular in those for high-power catenaries, into a bar or mast, or to transmit them AMENDED SHEET
06-SEP-2000 15:39 CA 02324111 2000-09-15 P.026 GR g$ Q 31$2 P
gcT~~E99~aos6~
- 1a -i~to a back anchor, relatively complex screwed and welded eonstruCtions comprising angle section parts were p7reviously required. These were fastened on tensioning bands or oz~
AMENDED SHEET
06-SEP-2000 15:33 CA 02324111 2000-09-15 P.005 GR 98 P 31$2 P
threaded bushes concreted into the mast. Since they require special adaptors or angle sections, such constructions are comparatively complex. Further disadvantages are that the threaded bushes in the mast only absorb or transmit point loads. Tensioning bands, such as for example according to DE-U-9 J.00 863, act with respect to the force trax~smissic~n like tensioning cables and can therefore only introduce the forces linearly into the mast.
DE-C 26 13 152 discloses a concrete mast for high-voltage lines on which a plurality of reinforced concrete bxackets are arranged one above the other.
'I~he brackets are precast concrete members which are provided with steel reinforcements, placed onto the concrete mast and concreted onto the concrete mast iri a way known from concrete cross membexs. At, the ends of the brackets are sheet-metal plates which are welded to the steel reinforcements and have welded-on fastening bolts, at which insulators caza be screwed on.
The forces can only be introduced or transmitted in a punctzfo~cn manner by the fastening bolts of the reinforced concrete brackets. The document does not provide any suggestion of introducing or transmitting forces and/or bending moments at any desired location on the entire outer surface of a sleeve slipped o~rer the bar of a bar-type supporting frame .
Rs in the document mentioned above, DE-U
1 960 474 discloses a concxete mast with a plurality of reinforced concrete cross members placed on it. The aim pursued by this innovation is, in particular, to simplify the mounting of the cross members on the concrete mast. ~'or this purpose, it is proposed to provide a layer of plastic, bitumen ox~ the like between the wall of the opening of the cross member fitted onto the concrete mast and the apnically designed concrete mast. This layer is intended to allow compensation for production tolerances of tMe surfaces of the two parts to be connected to one another. The Iayer may consist 06-SEP-2000 15:33 CA 02324111 2000-09-15 P.006 - 2a -of an adhesive capable o~ hardening in the free atmosphere.
a6-SEP-200 15:39 CA 02324111 2000-09-15 P.027 ~R 98 P 3182 P
DE-C 26 13 152 discloses a concrete mast for high-voltage lines on which a plurality of reinforced concrete bxackets are arranged one above the other.
'I~he brackets are precast concrete members which are provided with steel reinforcements, placed onto the concrete mast and concreted onto the concrete mast iri a way known from concrete cross membexs. At, the ends of the brackets are sheet-metal plates which are welded to the steel reinforcements and have welded-on fastening bolts, at which insulators caza be screwed on.
The forces can only be introduced or transmitted in a punctzfo~cn manner by the fastening bolts of the reinforced concrete brackets. The document does not provide any suggestion of introducing or transmitting forces and/or bending moments at any desired location on the entire outer surface of a sleeve slipped o~rer the bar of a bar-type supporting frame .
Rs in the document mentioned above, DE-U
1 960 474 discloses a concxete mast with a plurality of reinforced concrete cross members placed on it. The aim pursued by this innovation is, in particular, to simplify the mounting of the cross members on the concrete mast. ~'or this purpose, it is proposed to provide a layer of plastic, bitumen ox~ the like between the wall of the opening of the cross member fitted onto the concrete mast and the apnically designed concrete mast. This layer is intended to allow compensation for production tolerances of tMe surfaces of the two parts to be connected to one another. The Iayer may consist 06-SEP-2000 15:33 CA 02324111 2000-09-15 P.006 - 2a -of an adhesive capable o~ hardening in the free atmosphere.
a6-SEP-200 15:39 CA 02324111 2000-09-15 P.027 ~R 98 P 3182 P
US-A 2 593 255 describes a device for securing rotatable antenna masts, as are usually provided for antennas for receiving TV or short-wave programs. The patent is primarily concerned with designing the securing means in such a way that the rotary bearing is largely protected against ingress of rainwater or other weathering influences. Eor this purpose, the device comprises an anchorage ring, which is fastened fixedly in place at the installation site of the antenna by 1Q means of tensioning cables, and a likewise annular receiving part for the antenna mast, which part is rotatabl.y secured on the anchorage ring. The antenna mast is fastened on the receiving part by means of a plurality of clamping screws arranged at the ~.5 circumference. The securing of the receiving part on the anchorage ring is performed in such a way that there is zoo friction or little friction. For this purpose, corresponding roller bearings or similar 'antifriction means' are provided.
20 Finally, DE-2~6 22 637 U1 discloses a mounting aid for fitting out or converting devices at a distance from the ground, in particular transformers on lattice, concrete or waoder~ masts.
The object of the present invention is to 25 ~.mprove a bar-type supporting frame of the type stated at the beginn~.ng to the extent that an optimum connection is Greeted between the bar and load or load bearer, allowing a higher ~.oad-bearing capacity and making it poasibJ.e for forces and/or bending moments of 30 any desired magnitude and direction to be introduced or transmitted into the bar. Tt is also intended that the means for introducing or transmitting the forces and/or bending moments should be cast-effective to produce and simple to mount, 35 The object set is achieved according to the invention by providing a metal sleeve which is resistant to bending, adjusted to the bar cross AMENDED SHEET
06-SEP-2000 15 39 CA 02324111 2000-09-15 P.028 GR 98 P 3.82 P
- 3a -section, can be s~.~,pped over the bar, AMENDED SHEET
06-SEP-2000 15:40 CA 02324111 2000-09-15 P.029 GR 9~ P 31$2 P
20 Finally, DE-2~6 22 637 U1 discloses a mounting aid for fitting out or converting devices at a distance from the ground, in particular transformers on lattice, concrete or waoder~ masts.
The object of the present invention is to 25 ~.mprove a bar-type supporting frame of the type stated at the beginn~.ng to the extent that an optimum connection is Greeted between the bar and load or load bearer, allowing a higher ~.oad-bearing capacity and making it poasibJ.e for forces and/or bending moments of 30 any desired magnitude and direction to be introduced or transmitted into the bar. Tt is also intended that the means for introducing or transmitting the forces and/or bending moments should be cast-effective to produce and simple to mount, 35 The object set is achieved according to the invention by providing a metal sleeve which is resistant to bending, adjusted to the bar cross AMENDED SHEET
06-SEP-2000 15 39 CA 02324111 2000-09-15 P.028 GR 98 P 3.82 P
- 3a -section, can be s~.~,pped over the bar, AMENDED SHEET
06-SEP-2000 15:40 CA 02324111 2000-09-15 P.029 GR 9~ P 31$2 P
by providing between bar and sleeve a bonding coat for fastening the sleeve on the bar with a non,-positive fit, and by the sleeve including on the outer circumference at least one connectiz~g means, at which the forces andJor bending moments can be introduced.
In tho case of tha bar-t~rpe suppoz~ting frame according to the invention, the loads or forces are introduced zx~.to tY~e s7.eeve and into the bar on a direct path via the connecting nodes. Since the bending-1G resistant sleeve is connected to the bar in a shearing-resistant manner, the two form from a statics viewpoint a composite cx'oss section. This can reliably absorb at any des~.red J.ocation along the circumferential line, via welded-on or adhesively attached connecting plates or profiles, a~.l foxces occurring, even bending moments from end tensioning means, anchorages, tension regulating devices, bxackets or the like.
The bending-resistant sleeve is advantageous~.y designed in a one-part form, being formed according to 2a a particularly advantageous design by a closed metal ring. The Connecting means at the connecting nodes may be adapted in a way corresponding to the circumstances, i.e., for the connection of tensioning or end-tensioning cables, corresponding connecting plates may be fastEned on the sleeve. For the articulation of a tension regulating device, the sleeve may also be provided with a [ section. The sleeve may advantageously also serve at the same time for the connect~.vzz of ground lines. For this purpose, 3G connecting bolts are provided on tk~.e outex circumference of the sleeves, interactir~g with openings in the ground line which are preferably made in the form of an elongate hole.
The bonding coat provided between the sleeve and the bar or mast serves on the one hand to compensate for possible tolerances and on the other hand to ensure a defined force transmission between bar AMENDED SHEET
06-5EP-2000 15 40 CA 02324111 2000-09-15 P.030 GR 98 F' 3182 P
- ~a -dr mast and sleeve: in this way, the non-positive and positive fit can be optimize~9 and a shearing-resistant connecting joint can be produced. Suitak~~.e adhesives or sealing mortars come ~.nto consideration as the bonding coat.
AMENDED SHEET
06-5EP-2000 15:34 CA 02324111 2000-09-15 P.010 Further advantages emerge from the following description of several exemplary embodiments. In the drawing:
Figure 1 shows a first embodiment of a bar-type supporting frame with a conical bar, in side view, for the connection of a swinging extension arm.
Figure 2 shows a section along line II-II in Figure 1, Figure 3 shows a second embodiment of a bar type supporting frame for the connection of cables and back anchors, Figure 4 shows a section along line IV-IV in Figure 3, Figure 5 shows a third embodiment of a bar-type supporting frame for the securing of tension regulating devices, Figure 6 shows a section along lzne VI-VI xxi Figure 5, Figure 7 shows a fourth embodiment of a bar type supporting frame likewise for securing tension regulating devices, Figure 8 shows a section along line VIII-VIII
in Figure 7, Figures 9 and 10 show details of the connecting means on the sleeve according to Figures 7 and 8 in front and side view, Figure 11 shows a fifth embodiment of a bar-type supporting frame with a grounding system, Figure 12 shows a section along line xII-xII i.rz Figure 11, Figure 13 shows a detail from Figure 11.
Figure 1 shows in a schematized representation and in side view a detail of a first embodiment 06-SEP-20e0 15~35 CA 02324111 2000-09-15 P.011 GR 9$ P 31$2 P
of a bar-type supporting frame. The bar-type supporting frame 1 comprises a conically shaped, cross sectianally round bar 2, on which a swinging extension arm 3 for securing contact wires and carrying cables of a catenary system (not explained in any more detail) is secured. The bar 2 may be, for example, a concrete mast. The securing of the swinging extension arm 3 on the bar 2 takes place by means of two sleeves 4, 5, which have at node points (not designated in any moxe detail) connecting elements in the form of welded-on connecting plates 6, 7. The sleeves 4, 5 are formed by bending-resistant, closed steel rings 8, which have a wall tl~icknese of approximately 5 to 8 mm and - with the customary mast diameters of approximately 200 to 500 mm - an overall height of 60 to 200 z~un.
To obtain a shearing-resistant composite joint and consequently optimised force transmission from the sleeves 4, 5 to the bar 2, tk~e intermediate space between bar and inner circumference of the steel rings 8 is filled with a bonding coat 9 in the form far example of an adhesive or cement or plastics mortar.
Figures 3 and 4 show an embodiment of a bar-type supporting frame with only one sleeve 10, which preferably serves for the connection of tensioning cables ar back-anchor cables and, for this purpose, includes two connecting plates 12 welded onto the sleeve 10. In the case of this variant also, a bonding coat 9 is provided between the con.ieal bar 2 and the sleeve 10. The embodiment described may also be provided for the bearing or end te~,sianing of roadway lights.
The path of the cables is indicated in the figures by lines provided with an arrow, the abbreviations having the following meanings:
HA = back-anchor cable CC = carrying cable and CW = contact wire.
06-SEP-2000 15:35 CA 02324111 2000-09-15 P.Oi~
_ 7 _ Figures 5 and 6 show an embodiment of a bar-type supporting frame in which two wheel tensioners for tensioning or regulating the tension of a contact wire and a carrying cable are secured next to one another on the bar 2 with the aid of two sleeves 13, 14 arranged such that they are spaced one above the other. For the sake of better overall clarity, only one is represented in Figure 5, denoted by 15. The wheel tensioners are secured on the two sleeves 13, 14 by halts 15. As can be seen from Figure 6, fastened on the circumference of the sleeves are pairs of connecting plates 17, 18, which are arranged offset and, for inserting the wheel-tensioner spindle 16 or back-anchor cables, have corresponding drilled holes.
Figures 7 to 10 show an embodiment which likewise serves for securing two wheel tensioners, with the contrast compared to the design explained above that the two wheel tensioners are carried only by a single sleeve 19. Fastened on a closed load-carrying ring 20 there are on the one hand two [ sections 21 with welded-on end plates 22 and on the other hand two connecting plates 23 for the fastening of back-anchor cables. The end plates 22 are provided with corresponding drilled holes for receiving the wheel-tensioner spindle 24.
Figures 11 to 13 show an embodiment in which, instead of the relatively complex internal grounding used previously in the case of such bar-type supporting frames, a ground line laid on the outside along the bar or mast is provided. Both the sleeves 25, 26 provzded for securing the extension arm 3 and a further sleeve 27 serve at the same time for securing a ground line 30. As Figures 12 and 13 reveal, fastened on the load-carrying rings of the sleeves 25, 26, 27 for this purpose are threaded halts 28, which pass through openings 29, preferably designed as an elongate hole, in the earth line 30, designed as a flat-ribbon line.
The fastening of the ground line 30 06-SEP-200 15:40 CA 02324111 2000-09-15 P.031 - g -then takes place as a customary screw connection. For the grounding connection to the running raiJ., indicated by 31, the load-carrying ring of the lowermost sleeve 27 includes a welded-on gusset plate 32.
Particular advantages of the bar-type supporting franne are that not only tensile and compressive forces occurring, but also bending moments, can be optimally z.x~,troduoed into tho bar at any desired location of the bar-type supporting frame through a sleeve adapted to the cross sectp_on bf the bar or mast.
The fact that connecting plates are welded directl~r onto the sleeve makes it possible to dispense with the otherwise customarily provided cantilevered blocks, which can be fastened on the bar ox mast by means of threaded bushes and screws and are intended for receiving for example a swivelling extension arm. By connection at the wheel tens~.ox~ers directly to the sleeve, there is na longer any need for the relatively complex screwed and welded constructions of angle 2Q section parts. To be regrarded as a further advantage is the fact that the sleeves can be prefabricated complete with connecting nodes in a workshop, so that work in this respect is no longer needed in situ at the mounting site. $avings of up to 50~ of the mast costs and also simplifications in the production at the masts are obtained, because it is possible to dispense with the initial2,y~ mentioned threaded bushes machined into the bars or masts for fastening the attachment parts and for grQUnd connectlpz~s ~s weld. as the grQUnd rods on the inside. The external grounding system also has tlae advantage that ~.t is not only more cost--effective but also allows the quality of the grounding connections to be Checked from t.hg o~,~,tsj~de in a, simple way.
Finally, it should be point~?d cut that, as an alternative to the embodiments represented, in which a closed load-carrying ring, preferably in the form of a AMENDED SHEET
06-SEP-2000 15:41 CA 02324111 2000-09-15 P.032 GR 9$ P 3182 P
- 8a -steel ring, is used as the sleeve, it is also conceivable and with~.7r1 the Scape of the claims to design the load~carrying ring as one part but wa.th slots arid to fasten it on the ba.r by means o~
corresponding AMENDED SHEET
~6-SEP-280 15:36 CA 02324111 2000-09-15 P.015 GR 9$ P 31$2 P
_ g _ connecting elements. In both cases, mounting is comparatively simple, since the complete sleeve need only be slipped over the bar or mast. Also conceivable, however, is a two-paxt embodiment, with in each case two connecting elements on the bar.
Different variants are also conceivable with regard to the design of the bars. Far instance, instead of the concrete masts customarily used, metal constructions may also be used. Instead of the conical bars described, cylindrical bars may also be used.
Different forms are also cpnceivable with regard to the bar cross sections.
In tho case of tha bar-t~rpe suppoz~ting frame according to the invention, the loads or forces are introduced zx~.to tY~e s7.eeve and into the bar on a direct path via the connecting nodes. Since the bending-1G resistant sleeve is connected to the bar in a shearing-resistant manner, the two form from a statics viewpoint a composite cx'oss section. This can reliably absorb at any des~.red J.ocation along the circumferential line, via welded-on or adhesively attached connecting plates or profiles, a~.l foxces occurring, even bending moments from end tensioning means, anchorages, tension regulating devices, bxackets or the like.
The bending-resistant sleeve is advantageous~.y designed in a one-part form, being formed according to 2a a particularly advantageous design by a closed metal ring. The Connecting means at the connecting nodes may be adapted in a way corresponding to the circumstances, i.e., for the connection of tensioning or end-tensioning cables, corresponding connecting plates may be fastEned on the sleeve. For the articulation of a tension regulating device, the sleeve may also be provided with a [ section. The sleeve may advantageously also serve at the same time for the connect~.vzz of ground lines. For this purpose, 3G connecting bolts are provided on tk~.e outex circumference of the sleeves, interactir~g with openings in the ground line which are preferably made in the form of an elongate hole.
The bonding coat provided between the sleeve and the bar or mast serves on the one hand to compensate for possible tolerances and on the other hand to ensure a defined force transmission between bar AMENDED SHEET
06-5EP-2000 15 40 CA 02324111 2000-09-15 P.030 GR 98 F' 3182 P
- ~a -dr mast and sleeve: in this way, the non-positive and positive fit can be optimize~9 and a shearing-resistant connecting joint can be produced. Suitak~~.e adhesives or sealing mortars come ~.nto consideration as the bonding coat.
AMENDED SHEET
06-5EP-2000 15:34 CA 02324111 2000-09-15 P.010 Further advantages emerge from the following description of several exemplary embodiments. In the drawing:
Figure 1 shows a first embodiment of a bar-type supporting frame with a conical bar, in side view, for the connection of a swinging extension arm.
Figure 2 shows a section along line II-II in Figure 1, Figure 3 shows a second embodiment of a bar type supporting frame for the connection of cables and back anchors, Figure 4 shows a section along line IV-IV in Figure 3, Figure 5 shows a third embodiment of a bar-type supporting frame for the securing of tension regulating devices, Figure 6 shows a section along lzne VI-VI xxi Figure 5, Figure 7 shows a fourth embodiment of a bar type supporting frame likewise for securing tension regulating devices, Figure 8 shows a section along line VIII-VIII
in Figure 7, Figures 9 and 10 show details of the connecting means on the sleeve according to Figures 7 and 8 in front and side view, Figure 11 shows a fifth embodiment of a bar-type supporting frame with a grounding system, Figure 12 shows a section along line xII-xII i.rz Figure 11, Figure 13 shows a detail from Figure 11.
Figure 1 shows in a schematized representation and in side view a detail of a first embodiment 06-SEP-20e0 15~35 CA 02324111 2000-09-15 P.011 GR 9$ P 31$2 P
of a bar-type supporting frame. The bar-type supporting frame 1 comprises a conically shaped, cross sectianally round bar 2, on which a swinging extension arm 3 for securing contact wires and carrying cables of a catenary system (not explained in any more detail) is secured. The bar 2 may be, for example, a concrete mast. The securing of the swinging extension arm 3 on the bar 2 takes place by means of two sleeves 4, 5, which have at node points (not designated in any moxe detail) connecting elements in the form of welded-on connecting plates 6, 7. The sleeves 4, 5 are formed by bending-resistant, closed steel rings 8, which have a wall tl~icknese of approximately 5 to 8 mm and - with the customary mast diameters of approximately 200 to 500 mm - an overall height of 60 to 200 z~un.
To obtain a shearing-resistant composite joint and consequently optimised force transmission from the sleeves 4, 5 to the bar 2, tk~e intermediate space between bar and inner circumference of the steel rings 8 is filled with a bonding coat 9 in the form far example of an adhesive or cement or plastics mortar.
Figures 3 and 4 show an embodiment of a bar-type supporting frame with only one sleeve 10, which preferably serves for the connection of tensioning cables ar back-anchor cables and, for this purpose, includes two connecting plates 12 welded onto the sleeve 10. In the case of this variant also, a bonding coat 9 is provided between the con.ieal bar 2 and the sleeve 10. The embodiment described may also be provided for the bearing or end te~,sianing of roadway lights.
The path of the cables is indicated in the figures by lines provided with an arrow, the abbreviations having the following meanings:
HA = back-anchor cable CC = carrying cable and CW = contact wire.
06-SEP-2000 15:35 CA 02324111 2000-09-15 P.Oi~
_ 7 _ Figures 5 and 6 show an embodiment of a bar-type supporting frame in which two wheel tensioners for tensioning or regulating the tension of a contact wire and a carrying cable are secured next to one another on the bar 2 with the aid of two sleeves 13, 14 arranged such that they are spaced one above the other. For the sake of better overall clarity, only one is represented in Figure 5, denoted by 15. The wheel tensioners are secured on the two sleeves 13, 14 by halts 15. As can be seen from Figure 6, fastened on the circumference of the sleeves are pairs of connecting plates 17, 18, which are arranged offset and, for inserting the wheel-tensioner spindle 16 or back-anchor cables, have corresponding drilled holes.
Figures 7 to 10 show an embodiment which likewise serves for securing two wheel tensioners, with the contrast compared to the design explained above that the two wheel tensioners are carried only by a single sleeve 19. Fastened on a closed load-carrying ring 20 there are on the one hand two [ sections 21 with welded-on end plates 22 and on the other hand two connecting plates 23 for the fastening of back-anchor cables. The end plates 22 are provided with corresponding drilled holes for receiving the wheel-tensioner spindle 24.
Figures 11 to 13 show an embodiment in which, instead of the relatively complex internal grounding used previously in the case of such bar-type supporting frames, a ground line laid on the outside along the bar or mast is provided. Both the sleeves 25, 26 provzded for securing the extension arm 3 and a further sleeve 27 serve at the same time for securing a ground line 30. As Figures 12 and 13 reveal, fastened on the load-carrying rings of the sleeves 25, 26, 27 for this purpose are threaded halts 28, which pass through openings 29, preferably designed as an elongate hole, in the earth line 30, designed as a flat-ribbon line.
The fastening of the ground line 30 06-SEP-200 15:40 CA 02324111 2000-09-15 P.031 - g -then takes place as a customary screw connection. For the grounding connection to the running raiJ., indicated by 31, the load-carrying ring of the lowermost sleeve 27 includes a welded-on gusset plate 32.
Particular advantages of the bar-type supporting franne are that not only tensile and compressive forces occurring, but also bending moments, can be optimally z.x~,troduoed into tho bar at any desired location of the bar-type supporting frame through a sleeve adapted to the cross sectp_on bf the bar or mast.
The fact that connecting plates are welded directl~r onto the sleeve makes it possible to dispense with the otherwise customarily provided cantilevered blocks, which can be fastened on the bar ox mast by means of threaded bushes and screws and are intended for receiving for example a swivelling extension arm. By connection at the wheel tens~.ox~ers directly to the sleeve, there is na longer any need for the relatively complex screwed and welded constructions of angle 2Q section parts. To be regrarded as a further advantage is the fact that the sleeves can be prefabricated complete with connecting nodes in a workshop, so that work in this respect is no longer needed in situ at the mounting site. $avings of up to 50~ of the mast costs and also simplifications in the production at the masts are obtained, because it is possible to dispense with the initial2,y~ mentioned threaded bushes machined into the bars or masts for fastening the attachment parts and for grQUnd connectlpz~s ~s weld. as the grQUnd rods on the inside. The external grounding system also has tlae advantage that ~.t is not only more cost--effective but also allows the quality of the grounding connections to be Checked from t.hg o~,~,tsj~de in a, simple way.
Finally, it should be point~?d cut that, as an alternative to the embodiments represented, in which a closed load-carrying ring, preferably in the form of a AMENDED SHEET
06-SEP-2000 15:41 CA 02324111 2000-09-15 P.032 GR 9$ P 3182 P
- 8a -steel ring, is used as the sleeve, it is also conceivable and with~.7r1 the Scape of the claims to design the load~carrying ring as one part but wa.th slots arid to fasten it on the ba.r by means o~
corresponding AMENDED SHEET
~6-SEP-280 15:36 CA 02324111 2000-09-15 P.015 GR 9$ P 31$2 P
_ g _ connecting elements. In both cases, mounting is comparatively simple, since the complete sleeve need only be slipped over the bar or mast. Also conceivable, however, is a two-paxt embodiment, with in each case two connecting elements on the bar.
Different variants are also conceivable with regard to the design of the bars. Far instance, instead of the concrete masts customarily used, metal constructions may also be used. Instead of the conical bars described, cylindrical bars may also be used.
Different forms are also cpnceivable with regard to the bar cross sections.
Claims (9)
1. A bar-type supporting frame (1) with a bar (2) and with means for introducing or transmitting forces and/or bending moments into the bar (2), characterized in that the means comprise at least one metal sleeve (4, 5, 10, 13, 14, 19, 25 - 27) which is resistant to bending, adjusted to the shape of the bar cross section and can be slipped over the bar (2), a bonding coat (9) which can be introduced between the bar (2) and sleeve for fastening the sleeve on the bar (2) with a non-positive fit, and at Least one connecting means (6, 7, 12, 17, 18, 21, 22, 23), which is arranged on the outer circumference of the sleeve for introducing the forces and/or bending moments.
claims
claims
2. The bar-type supporting frame as claimed in claim 1, characterized in that the sleeve (4, 5, 10, 13, 14, 19, 25 - 27) is designed as a closed load-carrying ring (8, 20).
3. The bar-type supporting frame as claimed in claim 1 or 2, characterized in that one or more connecting plates (6, 7, 12, 17, 18; 23) for the connection of tensioning and/or end-tensioning cables are provided as the connecting means.
4. The bar-type supporting frame as claimed in claim 1 or 2, characterized in that one or more connecting parts (17, 18), formed from metal sections (21), for the direct connection of a load body (15), are provided as the connecting means.
5. The bar-type supporting frame as claimed in one of claims 1 to 4, characterized in that the sleeve (13, 14) includes, offset on the circumference, two connecting means (17, 18) for separate load bodies (15) and/or carrying or tensioning cables.
6. The bar-type supporting frame as claimed in one of claims 1 to 5, characterized in that at least two sleeves (13, 14, 25 - 27) are provided, arranged one above the other an the bar (2), connected to one another by means of a connecting element (16, 30) running along the bar (2) and consequently constituting bearers of a common load body (3, 15).
7. The bar-type supporting frame as claimed in claim 6, characterized in that connecting bolts (28) are fastened on the cuter circumference of the sleeves (25 - 27), interacting with openings in the connecting element (30) which are preferably made in the form of an elongate hole (29).
8. The bar-type supporting frame as claimed in claim 7, characterized in that the connecting element (30) is designed as a ground line.
9. The bar-type supporting frame as claimed in one of claims 1 to 8, characterized in that it comprises a conically designed bar (2).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19811619.5 | 1998-03-17 | ||
| DE19811619A DE19811619A1 (en) | 1998-03-17 | 1998-03-17 | Device for introducing or transferring forces and / or bending moments into the bar of a bar structure and bar structure equipped with such a device |
| PCT/DE1999/000661 WO1999047771A1 (en) | 1998-03-17 | 1999-03-10 | Device for introducing or transmitting forces and/or bending moments into the bar of a bar-type supporting frame and bar-type supporting frame having such a device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2324111A1 true CA2324111A1 (en) | 1999-09-23 |
Family
ID=7861228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002324111A Abandoned CA2324111A1 (en) | 1998-03-17 | 1999-03-10 | Bar-type supporting frame with bar and means for introducing or transmitting forces and/or bending moments into the bar |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1062400B1 (en) |
| AT (1) | ATE222985T1 (en) |
| CA (1) | CA2324111A1 (en) |
| DE (2) | DE19811619A1 (en) |
| WO (1) | WO1999047771A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011026310A1 (en) * | 2009-09-02 | 2011-03-10 | Nantong Shenma Power Technology Co. Ltd. | Composite insulated tower for grid |
| WO2017040035A1 (en) * | 2015-08-28 | 2017-03-09 | Respiraguard Dba Maple Mountain Composites | Systems and methods for remote tower implementation |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10026109C1 (en) * | 2000-05-26 | 2002-01-31 | Pfleiderer Infrastrukturt Gmbh | Clamping system holding platform to conical, reinforced concrete antenna mast comprises two flexible, circumferential clamping rings |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2066419A (en) * | 1934-07-26 | 1937-01-05 | Pfistershammer Josef | Tubular post |
| US2693255A (en) * | 1949-12-31 | 1954-11-02 | Crown Controls Company Inc | Antifriction guy ring |
| DE1434559B2 (en) * | 1962-12-17 | 1971-01-21 | Beton Schleuderwerke GmbH, 8520 Erlangen | Fastening a traverse to a m concrete pole |
| DE1960474U (en) * | 1966-05-18 | 1967-05-18 | Beton Schleuderwerke G M B H | CONCRETE POST WITH AT LEAST ONE TRAVERSE OR AN AUSLER ARM. |
| DE1658882A1 (en) * | 1967-08-18 | 1971-02-11 | Inst Stahlbeton | Lanyard for reinforced concrete parts, especially for reinforced concrete poles |
| DE2111719A1 (en) * | 1971-03-11 | 1972-11-09 | Hans Langmatz | Cantilever arm - for a mast or lamp standard |
| DE2613152C3 (en) * | 1976-03-27 | 1980-06-26 | Beton-Schleuderwerke Rudolf Kempe, 8520 Erlangen | Concrete mast for high voltage lines |
| DE9100863U1 (en) * | 1991-01-25 | 1992-05-21 | Siemens AG, 80333 München | Device for holding fastening parts on columnar bodies |
| DE29622637U1 (en) * | 1996-12-12 | 1997-03-13 | Elsic Elektrische Sicherheitsausrüstungen und Betriebsmittel GmbH, 41189 Mönchengladbach | Assembly aid for equipping or retrofitting floor-spaced devices |
-
1998
- 1998-03-17 DE DE19811619A patent/DE19811619A1/en not_active Withdrawn
-
1999
- 1999-03-10 DE DE59902467T patent/DE59902467D1/en not_active Expired - Lifetime
- 1999-03-10 AT AT99913114T patent/ATE222985T1/en active
- 1999-03-10 CA CA002324111A patent/CA2324111A1/en not_active Abandoned
- 1999-03-10 EP EP99913114A patent/EP1062400B1/en not_active Expired - Lifetime
- 1999-03-10 WO PCT/DE1999/000661 patent/WO1999047771A1/en active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011026310A1 (en) * | 2009-09-02 | 2011-03-10 | Nantong Shenma Power Technology Co. Ltd. | Composite insulated tower for grid |
| WO2017040035A1 (en) * | 2015-08-28 | 2017-03-09 | Respiraguard Dba Maple Mountain Composites | Systems and methods for remote tower implementation |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19811619A1 (en) | 1999-09-30 |
| ATE222985T1 (en) | 2002-09-15 |
| EP1062400A1 (en) | 2000-12-27 |
| WO1999047771A1 (en) | 1999-09-23 |
| EP1062400B1 (en) | 2002-08-28 |
| DE59902467D1 (en) | 2002-10-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |