DE20205549U1 - Tubular roof structure for receiving antennas and technical components - Google Patents

Description

Tubular roof structure for accommodating antennas and technical components

The invention relates to a statically and electrically optimized self-supporting tubular roof structure for accommodating antennas and technical components.

The antennas mounted under roof structures and their system technology should not be easily identified as antennas or antenna systems.

can be.
15

Antenna systems are constructed site-specifically according to central or regional specifications.

Since the required antenna heights in inner cities are in most cases at least 15 m, antenna locations are mainly multi-storey residential buildings with gable or flat roofs.

These roofs are usually designed to withstand snow, wind and human loads and are therefore not suitable for supporting larger additional loads.

The further expansion of mobile networks will result in increased use of existing mast systems. This means

• Increased weight due to larger steel cross-sections and
larger wind attack surfaces,

• · larger moments of force at the mast base and thus

· the necessity of introducing forces into the load-bearing walls of the buildings.

There are currently two trends in the expansion of mobile networks:

Firstly, the erection of central mast systems with a height of up to 9.90 m above the top edge of the roof and with an average dead weight of approx. 600 kg to 900 kg. With such mast systems, a moment of approx. 24 KN/m in the mast base caused by wind power must be expected (when equipped with 3 sector antennas and 1 directional antenna on the upper mast area on booms).

Since the ceiling of the building is generally unable to absorb these additional forces, they must be introduced into the supporting structure via large load distribution systems. This requires new static calculations and approvals.

The second trend is the construction of several smaller mast systems per location with a height between 3.0 m and 6.0 m.

But even with these smaller mast systems, the building ceilings are in most cases not able to absorb the additional forces. The isolation increases the number of radio components and requires several smaller structural plans for the force introduction into the existing structures. This approach brings with it a number of disadvantages, namely:

• All plans are individual plans.

· There is no standardization of designs for mast locations.

• Static calculations and approvals are always necessary.

• Mast systems consist of many individual parts that are mounted on a central support system, the tube.

• Due to the size and weight of the mast systems, they must be assembled on site if mobile crane systems are to be avoided.

• The mast systems have a significant visual impact on the natural roof landscape.

· Architectural-aesthetic aspects that combine a holistic approach to the technical equipment and the urban environment in the planning and implementation sense are completely missing.

• Standardized and pre-assembled systems or subsystems are not available on the market.

Furthermore, the state of the art does not take into account the necessary economic and holistic approach to the technical solutions used. The individual solutions described do not directly damage the roof surfaces, but they do attack them to an increasing extent. In the future, the monstrous mast systems will no longer allow a large number of roof locations to be developed for the very high demand for radio systems for the technology-oriented 3rd generation mobile networks and their migration with the predecessor networks. The individual solutions also do not allow the antenna systems to be set up quickly, as both engineering and construction are very time-consuming.

Furthermore, the mast systems with their pronounced substructure do not fit aesthetically into the architectural environment of an urban character. Economic aspects of the construction and revision of the antenna systems are not taken into account sufficiently.

The present invention takes a completely different approach to solving the following problems.

Creating the possibility of installing radio systems on buildings with any roof shape, thus ensuring that mobile operators have the necessary number of sites to set up technology-oriented 3rd generation mobile networks and migrate them with the predecessor networks.

UL

The new solution is intended to reduce the construction costs for the described mobile network setup.

The previous technical solutions, consisting of steel masts, antenna supports, antennas, cables and additional technical components, are to be replaced by a completely new antenna roof structure, also with color matching to the building structure.

Expenses for carrying out revisions of the mechanical and electrical parts of the antenna systems are to be significantly reduced.

An inventive solution to this problem is specified in claims 1, 4 and 13, further developments of the invention are characterized in the subclaims.

According to the concept of the invention, the tubular roof structure is designed as a statically and electrically optimized self-supporting cylinder system, which is constructed according to the modular principle and whose parts can be easily assembled and disassembled.

In a first preferred embodiment, the cylinder system consists of:

• a double-walled special cylinder with stiffeners,

• a substructure for the folding or non-folding version of the special cylinder; the folding substructure is intended to facilitate assembly and inspection work,

• a funnel cylinder connected to the upper end of the special cylinder, which is force-locked to the special cylinder via a connecting element placed between the special cylinder and the funnel cylinder,

· an arrangement of cartridges located in the funnel cylinder with

antennas attached to it and a compensation cylinder pushed over the cartridge and/or the slotted cartridge lamellae. The cartridge, in interaction with the funnel cylinder, promotes the fixation and stiffening of the cylinder system.
The special cylinder consists of two cylinder walls arranged concentrically in a circular ring distance of approximately 3 to 6 cm. The two cylinder walls are fixed in position to each other by spacers. The circular ring volume between the two cylinder walls can also be filled with a stabilizing, stiffening material, such as foam or the like.

The lower end of the special cylinder is pushed onto a substructure or inserted into a substructure that ensures its stability. The substructure consists of a double plate that can be folded using hinges, lies directly on top of one another or at a distance from one another and can be locked in place on the side facing away from the hinge side. This makes the entire system foldable.
A mast base with a vertically standing double pipe extension is attached to the upper mounting plate, which is dimensioned in such a way that the special cylinder can be inserted in a form-fitting manner between the two walls - i.e. in the circular gap - of the double pipe extension.
This clamping pair consisting of a double pipe extension of the mast base with a pressing effect on the two walls of the special cylinder in between connects the cylinder system in a force-locking manner and sufficiently stiffens it and fixes it at the same time.

The prerequisite for the coaxial wall-to-wall arrangement of the special cylinder and the double pipe extension of the mast base is that the annular gap between the double pipe extension of the mast base is approximately the thickness of the

total wall of the double special cylinder so that the special cylinder can be pushed tightly into the annular gap.
The mast base can be welded or screwed onto the upper movable leg of the double plate and has inspection openings in the pipe base for receiving and accessing the connecting elements for cable connections and other technical equipment.

Such inspection openings can be omitted if a clearance space is created under the double mounting plate. In this case, the cable connections are introduced into the cylinder system from below via the clearance space.

A separate spacer construction is used to create such a gap between the double fastening plate and the mounting level (roof surface). In the simplest case, this spacer construction consists of a base plate attached to the roof surface and vertical struts for a stable connection of the base plate to the lower part of the double fastening plate.

This spacing has the advantage that the plug connections do not have to be disconnected when the entire system is folded over.

The height of the vertical pipe attachment depends on the total height of the pipe system (special cylinder and funnel cylinder) and can be up to about 1.0 m.

The heights or lengths of the two pipe extensions spaced apart across the annular gap can be different.

The special cylinder has a length of about 4 to 6 m and a maximum diameter of about 400 mm and is connected at its upper end to the funnel cylinder in a force-fitting manner via the connecting element.

The connecting element consists of two pipe sockets that are attached to the top and bottom of a larger diameter perforated disc. The two pipe sockets can have different diameters. The perforated disc has an opening in its middle that is large enough to allow the cables to pass through.

During the force-locking assembly of the connecting element, the lower pipe socket is inserted into the upper end of the special cylinder and the upper pipe socket is inserted into the lower end of the funnel cylinder.

The resulting pipe system can be built up to heights of 9.9 m. This pipe system has three functions.

1. Static optimization of the entire system by significantly reducing the wind attack areas to WA < 50 cm/m and the total load to < 0.75 KN/m.

2. In the length range of the funnel cylinder in which the antennas are housed, the funnel cylinder should be optimally permeable to the radiated frequency through the compensation cylinder.

3. Through its stele-like shape and colour design or continuation of the colour design of the building supporting the antenna system, the character of a purely functional radio and transmission system is to be eliminated.

The antennas themselves are attached to a cartridge positioned in the funnel cylinder, which consists of the three components cartridge cover at the bottom, cartridge cover at the top and the lamella body in between with three continuous wall stiffeners (lamellae) arranged in a star shape.

The cartridge cover at the bottom fits positively into the upper part of the connecting element, while the funnel cylinder is pushed onto the outer upper wall of the connecting element and connected force-fittingly.

The cartridge cover at the bottom has a sufficiently large recess for the antenna cables to pass through.

The cartridge cover at the top has a larger diameter than the funnel cylinder and thus closes the funnel cylinder in a hood-like and sealing manner.

Both cover elements are connected and guided with the lamella body in a force-locking manner. This lamella body is used to hold the antennas, which are attached to it in a force-locking manner. The lamella body has continuous, star-shaped wall stiffeners (lamellae) that form-lockingly stabilize the compensation cylinder and ensure that the cartridge is guided in the funnel cylinder when assembled with antennas and other technical equipment.

In an advantageous embodiment, the lamella body is designed with three beams, with the three lamellas leading radially away from the central axis each enclosing an angle of 120°.

In order to connect the lamella body of the cartridge with the compensation cylinder, the areas of the lamella body and compensation cylinder that meet at the front sides and continuously parallel to the central axis are slotted in opposite directions at the same radial distance and can be pushed into each other via these slots.

The following materials are used for the components of the cylinder system:

&bull; suitable plastics for special cylinders, funnel cylinders, cartridges and compensation cylinders;

&bull; .metallic materials, especially aluminium for the

Substructure and the connecting element.
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In a second preferred embodiment, the cylinder system according to the invention has the following structure or the following deviations from the first embodiment:

&bull; a single-walled or double-walled special cylinder with preferably three-beam lamella reinforcement, whereby the three radially extending lamellae are designed as continuous wall reinforcements over the length of the special cylinder and funnel cylinder,

&bull; a substructure as explained in the first embodiment,

&bull; a funnel cylinder connected to the special cylinder via a connecting element in a force-locking manner, analogous to the first embodiment, · a lamella body extending from the special cylinder into the funnel cylinder, which serves for cable assembly in the area of the special cylinder and carries the antennas in the area of the funnel cylinder. Arranged above the lamella body and/or inserted into the slotted cartridge lamellas, analogous to the first embodiment, is a compensation cylinder slotted in the opposite direction.

&bull; a cartridge cover at the top with a larger diameter than the funnel cylinder for positively closing the funnel cylinder.

The lamella reinforcement has an angle of 120° between the star-shaped lamellas. Such lamella reinforcement can also be subsequently inserted into the funnel cylinder and special cylinder as a correspondingly elongated, continuous structural element.

In a third preferred embodiment, the cylinder system consists of

&bull; a special cylinder in the total length of the roof structure with a continuous preferably three-beam lamella reinforcement and

Openings in the cylinder wall for microwave windows in the upper area and inspection windows in the area below,

&bull; a mast base with feedthrough for the feed cables,

&bull; an inspection cylinder that can be moved axially on the outside of the special cylinder for closing and opening the inspection windows,

&bull; a compensation cylinder, which preferably covers the microwave windows from the outside and is fixed in this position.,

&bull; Antennas mounted in the area of the compensation cylinder in the 120° spaces between the slats of the slat reinforcement.

When the antenna system is being inspected, the inspection cylinder is preferably moved downwards in the direction of the common axis of the cylinder system so that access to the antennas is free through the inspection windows.

By means of an additional sliding system arranged on the slat reinforcement, for example in the form of a rail system, the antennas can be moved vertically, i.e. along the axis of the cylinder system. This improves access to the antennas.

Further details, features and advantages of the invention emerge from the following description of an embodiment with reference to the accompanying drawings. The embodiment relates to a roof structure according to the first embodiment; they show:

Fig. 1: a perspective view of the assembled cylinder system

the first embodiment in the ready-to-use state,
Fig. 2: a representation of the components for assembling the cylinder system

according to Fig. 1,

Fig. 3: a detailed view of the double pipe attachment (mast base)

inserted special cylinder of the first embodiment, Fig. 4: a mast base with spacer construction under the fastening

double plate,

Fig. 5: a perspective view of the assembled cylinder system

the third embodiment in the ready-to-use state,

Fig. 6: a perspective view of the assembled cylinder system

according to Fig. 5 at the time of revision, Fig. 7: a detailed view of the mast base corresponding to Fig. 5 and 6 with

special cylinder prepared for insertion into the mast base. 15

Fig. 1 shows the new antenna roof structure designed as a cylinder system according to the first embodiment in the assembled, ready-to-use state with installed antennas 2, which are arranged invisibly under the compensation cylinder 10.

The cylinder system consists of the following components, which are shown individually in Fig. 2:

&bull; a double-walled special cylinder 1, which is inserted with its lower end into the mast base 5 in a form-fitting manner, see also Fig. 2.1 and Fig.

3,

&bull; a substructure that ensures the stability and foldability of the cylinder system; the substructure includes (see Fig. 2.1 and 3) the double fastening plate 4 with hinge side 4.1 and

opposite locking mechanism 4.2. The substructure also includes the mast base 5 welded onto the double mounting plate 4, here designed as a double pipe attachment 5.1 and 5.2,

&bull; a bearing element which is seated on the upper end of the special cylinder 1 via a connecting element 8 and is frictionally connected to the connecting element 8 and the special cylinder 1 by gluing

connected funnel cylinder 7, see Fig. 2.2.

The connecting element 8 consists of two pipe sockets 8.1 and 8.2 connected via a perforated disk 8.3, which have a different diameter adapted to the diameter of the funnel cylinder and special cylinder,

· a cartridge 9, which consists of the parts cartridge cover bottom 9.1, cartridge cover top 9.2 and the lamella body 9.3 located between them, see Fig. 2.3.

The lamella body 9.3 has three continuous wall stiffeners (lamellas) arranged radially at an angular distance of 120° each, to which the antennas 2 are attached.

By means of the slots 9.4 and 10.1, which are made in the same radius in the slats and the compensation cylinder 10, the compensation cylinder 10 is connected to the slat body 9.3 by sliding them into one another.

The lamella body is supported laterally on the funnel cylinder 7 and on the two front sides via the cartridge covers 9.1 and 9.2 and thus ensures the stabilization of the entire system.

In this embodiment, the double-walled special cylinder 1 (see Fig. 3) should have a length or height of 8.5 m and a diameter of 400 mm.

Like the funnel cylinder 7, the cartridge 9 and the compensation cylinder 10, it is made of a suitable plastic.

The substructure 4, 5 and 6 as well as the connecting element 8 are made of aluminum.

Fig. 3 shows the detailed view of the special cylinder 1 inserted into the mast base 5 with the double pipe extension 5.1 and 5.2. The coaxial arrangement of the double pipe extension and the special cylinder as well as the cross-sectional structure of the special cylinder 1 with inner and outer

Cylinder wall 1.1, 1.2, spacer elements 1.3 and stiffening material 1.4.

A substructure consisting of a double fastening plate 4 (see Fig. 3) with a mast base 5 attached to it serves to anchor the special cylinder 1 in a vertical position.

The lower end of the special cylinder 1 is pushed onto the approximately 0.5 m and 1.0 m long double pipe extension 5.1, 5.2 with a tight fit.

The two parts of the double fastening plate 4 are connected on one side by a hinge 4.1 to ensure that the cylinder system can be folded for assembly and servicing purposes. A reliable force-locking locking mechanism 4.2 is provided on the opposite side.
The connecting elements for cable connections and the like are accessible via the inspection opening 11 in Fig. 3 when the special cylinder 1 is removed from the pipe extension 5.

Fig. 4 illustrates the structure of a mast base 5 with a spacer construction 6 under the double fastening plate 4. This spacer construction 6 creates a space for accommodating the cable connections and the like under the mast base 5. It consists of a base plate 6.1 and the box-shaped struts 6.2 welded onto the base plate. By feeding the feed cables of the antennas from the spacer space under the mast base 5, the plug connections do not have to be disconnected when the pipe system is folded over in the event of an inspection.

The subject of Fig. 5 to Fig. 7 is a cylinder system according to the third embodiment.

The cylinder system includes the components

· Special cylinder in single-wall design, see also Fig. 7, upper illustration,

&bull; Mast base 5 with simple pipe attachment, spacer construction 6 and feedthrough for the feed cables 3, see also Fig. 7, lower illustration,

&bull; Inspection cylinder 12 for closing or opening the inspection windows 1.6 shown in Fig. 7, upper illustration,

&bull; Compensation cylinder 10, which covers the microwave windows 1.5 in the upper area of the special cylinder 1.

The compensation cylinder 10 is pushed out onto the special cylinder 1 in a form-fitting manner and glued to the special cylinder 1 at the contact points.

Fig. 5 shows the cylinder system with the inspection cylinder 12 positioned approximately centrally, i.e. in the operational state with closed

Revision windows 1.6.
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Fig. 6 illustrates the cylinder system at the time of inspection; the inspection cylinder 12 is moved downwards, whereby the inspection windows 1.6 and thus the antennas 2 are freely accessible.

To facilitate work on the antennas, the antennas 2 arranged between the slats of the three-beam slat body 9.3 were moved downwards to the height of the inspection windows 1.6, for example via a rail system (not shown) attached to the slat body 9.3.

List of reference symbols

1 special cylinder

1.1 Cylinder wall - inside

1.2 Cylinder wall - outside

5 ... 1.3 Spacer elements « · · · · ··&diams;· # · · · 1.4 stiffening material · ·
15 1.5 Microwave window 1.6 Revision window Antennas Cable 2 Double mounting plate 3 4.1 Hinges 4 4.2 Locking double pipe attachment, mast base 5.1 inner pipe attachment 5 5.2 outer pipe attachment Spacer construction 6.1 Base plate 6 6.2 Striving Funnel cylinder Connecting element 7 8.1 upper pipe socket 8th 8.2 lower pipe socket cartridge 9.1 Cartridge cover bottom 9 9.2 Cartridge cover top 9.3 Lamellar body 9.4 Slots of 9.3 Compensation cylinder 10.1 Slots 10 Inspection opening Inspection cylinder 11 12

Claims (14)

1. Tubular roof structure for accommodating antennas ( 2 ), associated cables ( 3 ) and technical components consisting of a statically and electrically optimized self-supporting cylinder system, characterized by the following structure a) a double-walled special cylinder (1.1., 1.2) with stiffeners ( 1.3 , 1.4 ); b) a foldable or non-foldable substructure ( 4 , 5 , 6 ) to ensure the stability of the special cylinder ( 1 ); c) a funnel cylinder ( 7 ) connected to the upper end of the special cylinder ( 1 ) and frictionally coupled to the special cylinder ( 1 ) via a connecting element ( 8 ); d) an arrangement of at least one cartridge ( 9 ) with antennas ( 2 ) attached thereto, accommodated in the funnel cylinder ( 7 ), wherein a compensation cylinder ( 10 ) is pushed over the cartridge ( 9 ) and/or into the axially parallel slotted cartridge lamellae ( 9.3 ). 2. Tubular roof structure according to claim 1, characterized in that the special cylinder ( 1 ) consists of two cylinder walls ( 1.1 , 1.2) arranged concentrically one inside the other at a circular ring distance of about 3 to 6 cm, wherein the two cylinder walls (1.1, 1.2 ) are fixed in their position relative to one another by spacer elements ( 1.3 ) and the circular ring volume between the two cylinder walls ( 1.2 , 1.2 ) can additionally be filled with a stabilizing material ( 1.4 ), such as foam and the like. 3. Tubular roof structure according to claim 1 or 2, characterized in that the antennas ( 2 ) are attached to a cartridge ( 9 ) positioned in the funnel cylinder ( 7 ), which consists of the three components cartridge cover below ( 9.1 ), cartridge cover above ( 9.2 ) and the slatted body ( 9.3 ) located therebetween with three continuous, star-shaped wall stiffeners (slats), wherein the cartridge cover below ( 9.1 ) is fitted in a form-fitting manner into the upper part of the connecting element ( 8 ). 4. Tubular roof structure for accommodating antennas ( 2 ), associated cables ( 3 ) and technical components consisting of a statically and electrically optimized self-supporting cylinder system, characterized by the following structure a) a single-walled or double-walled special cylinder ( 1 ) with at least three-ray lamella reinforcement ( 9.3 ), wherein the three radially extending lamellae are designed as continuous wall reinforcements over the length of the special cylinder ( 1 ) and funnel cylinder ( 7 ); b) a foldable or non-foldable substructure ( 4 , 5 , 6 ) to ensure the stability of the special cylinder ( 1 ); c) a funnel cylinder ( 7 ) connected to the upper end of the special cylinder ( 1 ) and frictionally coupled to the special cylinder ( 1 ) via a connecting element ( 8 ); d) a lamella body ( 9.3 ) which projects from the special cylinder ( 1 ) into the funnel cylinder ( 7 ), which serves for cable assembly ( 3 ) in the area of the special cylinder ( 1 ) and carries the antennas ( 2 ) in the area of the funnel cylinder ( 7 ), wherein a compensation cylinder ( 10 ) slotted in the opposite direction is pushed over the lamella body and/or into the slotted cartridge lamellae ( 9.3 ); e) a cartridge cover at the top ( 9.2 ) with a larger diameter than the funnel cylinder ( 7 ) for positively closing the funnel cylinder. 5. Tubular roof structure according to one of claims 1 to 4, characterized in that the substructure consists of a fastening double plate ( 4 ) which can be folded by means of hinges ( 4.1 ), lies directly on top of one another or at a distance from one another, which can be locked in a force-fitting manner on the side facing away from the hinge side, and a mast base ( 5 ) with a vertically standing double pipe extension ( 5.1 , 5.2 ) is attached to the upper fastening plate, which is dimensioned such that the special cylinder ( 1 ) can be inserted in a form-fitting manner between the two walls ( 5.1 , 5.2 ) of the double pipe extension. 6. Tubular roof structure according to one of claims 1 to 5, characterized in that in order to create a spacing space between the fastening double plate ( 4 ) and the mounting plane (roof surface), a spacing construction ( 6 ) is provided, which consists of a base plate ( 6.1 ) fastened to the roof surface and vertical struts ( 6.2 ) for the stable connection of the base plate ( 6.1 ) to the lower part of the fastening double plate ( 4 ). 7. Tubular roof structure according to one of claims 1 to 6, characterized in that the height of the double vertical pipe extension ( 5 ) depends on the total height of the pipe system, i.e. special cylinder ( 1 ) and funnel cylinder ( 7 ) and is up to about 1.0 m, wherein the heights of the two pipe extensions ( 5.1 , 5.2 ) spaced apart by the annular gap can be different. 8. Tubular roof structure according to one of claims 1 to 7, characterized in that the special cylinder ( 1 ) is connected at its upper end with the interposition of the connecting element ( 8 ) in a force-fitting manner to the funnel cylinder ( 7 ), wherein the connecting element ( 8 ) consists of two pipe sockets ( 8.1 , 8.2 ) which are fastened to the upper and lower sides of a perforated disk ( 8.3 ) of larger diameter. 9. Tubular roof structure according to claim 8, characterized in that the two pipe sockets ( 8.1 , 8.2 ) have a different diameter and the perforated disc ( 8.3 ) has an opening in its central region which is sufficiently large for the passage of the cables ( 3 ). 10. Tubular roof structure according to claim 1, 3 and 4, characterized in that the lamella body ( 9.3 ) is designed with three beams, wherein the three lamellae leading radially away from the central axis each enclose an angle of 120° and, for connecting the lamella body ( 9.3 ) of the cartridge ( 9 ) to the compensation cylinder ( 10 ), the areas of the lamella body ( 9.3 ) and the compensation cylinder ( 10 ) which meet at the end faces have slots ( 9.4 , 10.1 ) which are introduced in opposite directions and parallel to the axis at the same radial distance. 11. Tubular roof structure according to claim 10, characterized in that the distance of the slots ( 9.4 , 10.1 ) in the cartridge ( 9 ) and compensation cylinder ( 10 ) from the central axis depends on the microwave window to be set for the radio frequencies used. 12. Tubular roof structure according to one of claims 1 to 11, characterized in that the following materials are provided for the components of the cylinder system: (a) suitable plastics for special cylinders ( 1 ), funnel cylinders ( 7 ), cartridges ( 9 ) and compensation cylinders ( 10 ); b) metallic materials, in particular aluminium for the substructure ( 4 , 5 , 6 ) and the connecting element ( 8 ). 13. Tubular roof structure for accommodating antennas ( 2 ), associated cables ( 3 ) and technical components consisting of a statically and electrically optimized self-supporting cylinder system, characterized by the following structure a) a single-walled or double-walled special cylinder ( 1 ) with microwave windows ( 1.5 ) in the upper area and inspection windows ( 1.6 ) underneath and with at least three-beam lamella reinforcement ( 9.3 ), whereby the three radially extending lamellae are designed as continuous wall reinforcements over the length of the special cylinder ( 1 ), which corresponds to the total length of the roof structure, and accommodate the antennas ( 2 ) in the upper area, b) a substructure as a mast base ( 5 , 6 ) with passage for the cables ( 3 ), c) an inspection cylinder ( 12 ) which can be moved externally on the special cylinder ( 1 ) for closing and opening the inspection windows ( 1.6 ), d) a compensation cylinder ( 10 ) which is arranged and fixed from the outside above the microwave windows ( 1.5 ) of the special cylinder ( 1 ). 14. Tubular roof structure according to claim 13, characterized in that in the region of the compensation cylinder ( 10 ) and the inspection cylinder ( 12 ) between the slats of the slat body ( 9.3 ) a rail or sliding system is arranged on which the mounted antennas ( 2 ) can be moved along the common axis of the cylinder system.