WO2013014121A2

WO2013014121A2 - Grandstand roof

Info

Publication number: WO2013014121A2
Application number: PCT/EP2012/064387
Authority: WO
Inventors: Hans-Peter ANDRÄ; Adam ANDRÄ; Markus Maier; Niels Deschauer; Jonas VELTEN
Original assignee: Leonhardt, Andrä und Partner Beratende Ingenieure VBI GmbH
Priority date: 2011-07-22
Filing date: 2012-07-23
Publication date: 2013-01-31
Also published as: EP2734688A2; WO2013014121A3; DE102011052090A8; DE102011052090A1

Abstract

The invention relates to a grandstand roof (1) for roofing over the grandstand (2) of a stadium or the like, wherein the grandstand (2) rises from a lower grandstand edge to an upper grandstand edge (4) and wherein the grandstand roof (1) is fixed to a roof supporting structure (4) which extends on an outer edge of the grandstand until above the upper grandstand edge. The grandstand roof (1) has a roof element (3) which has a plurality of lifting bodies (5) which are separated from one another in a gas-tight manner, are connected to one another, can be connected detachably to the roof supporting structure (4) on a side facing the roof supporting structure (4) and are filled with a lifting gas. The lifting bodies (5) filled with the lifting gas are designed in such a way that vertical roof loads acting on the roof element (3) are approximately compensated for by lifting forces acting on the lifting bodies (5) of the roof element (3). The lifting bodies (5) of the roof element (3) are arranged at a spacing from one another.

Description

grandstand roof

The invention relates to a bleacher roof for roofing the grandstand of a stadium or the like, wherein the grandstand rises from a lower grandstand edge to an upper grandstand edge, and wherein the grandstand roof on a

Roof support structure is fixed, which extends to an outer edge of the grandstand to the top of the grandstand.

Tribune roofs usually cantilever freely over the roofed over grandstands to prevent obstruction from the stand on the located in front of the bleachers venue. Therefore, roof loads can only be taken on the outer edge of the stands, which faces away from the scene, and be removed into the ground.

The grandstand roofs are fixed to a roof support structure, which is either part of the purpose designed for this purpose grandstand construction or a separate support structure, which is independent of the

Tribune is built at the outer edge. Due to the weight of the scaffolds used for conventional grandstand roofs and carried by the support frame

Roofing affects the roof support structure considerable forces and moments. To accommodate these forces and moments, the roof support structure must have sufficiently stable, often massive and large components and construction elements exhibit. The space requirements and the cost of the construction of such roof support structures is significant.

As shoring, for example, too

Rope net structures used at the top

Grandstand edge to be attached under train. Even with such constructions costly roof support structures and additional fastening and clamping elements for receiving the tensile forces occurring are required on the outer grandstand edge.

Usually, the structure of the grandstand roofs and the assembly of the stands can not be done simultaneously. For the construction of the grandstand, the space above the grandstands should be kept clear in order to be able to use the bulky components with cranes required for the erection of the grandstands. For the assembly of the grandstand roofs will be

usually high towers needed after

Completion of the grandstand roofs must be dismantled again. The installation of conventional grandstand roofs is therefore extremely time consuming and costly.

The object of the invention is therefore considered to reduce the loads to be derived in the ground of the roof structures and to simplify the assembly of the grandstand roofs and the required roof support structure.

This object is achieved in that the grandstand roof has a roof element that several

each other gas-tightly separated, interconnected, on one of the roof support structure side facing the roof support structure releasably connectable and with a Having buoyant gas filled buoyancy body, wherein the buoyancy gas filled with the buoyancy gas are designed so that acting on the roof vertical roof loads approximately by on the buoyancy of the

Roof element acting buoyancy forces are compensated.

The ones commonly used for grandstand roofs

Roof structures are in the invention by

Buoyancy replaced, for example, filled with helium or heated air. The buoyancy bodies are expediently designed by the

Buoyancy acting buoyancy forces the loads of the roof structure or the vertical roof loads are approximately compensated. Since only small or largely compensated by the buoyant body

Roof loads must be introduced into the roof support structure, can be dispensed with the usually necessary massive and heavy components for receiving the roof loads. Therefore, for the establishment of the

Roof support structure only a small effort

required.

The grandstand roof according to the invention can float largely free or without additional supports by acting on the buoyancy buoyancy force, so that the

completed, suspended grandstand roof subsequently positioned, for example, with the help of a helicopter over the already mounted grandstand and at the

Roof support structure can be set. As a result, the assembly of the tribune roof regardless of the structure of the grandstands done, making the time required for the construction of the grandstand and the tribune roof compared to Use of conventional roof structures can be reduced.

As lift gas, for example, helium, hydrogen, steam or hot air in question. It is also possible to fill the buoyancy bodies of a roof element with different buoyancy gases, so that, for example, a first buoyant body is filled with helium and a second buoyant body is filled with hot steam.

It is also conceivable that the buoyancy bodies can be filled and emptied independently of each other with buoyant gas. A roof surface of the roof element can be completely formed by closely adjoining buoyancy bodies. But it is also possible and according to the invention provided that the buoyancy of the roof element spaced

are arranged from each other. In this way, the cost of manufacturing the grandstand roof can be reduced. It is also conceivable that the buoyancy bodies

abut each other in sections, so that the roof surface is partially formed by the adjoining buoyancy bodies.

Advantageously, it is provided that an open roof area remaining between the buoyancy bodies of the roof element is covered by at least one roof surface element, wherein the at least one roof surface element is fixed to at least one buoyant body. The roof surface element may be, for example, a suitable foil or foil connected to the buoyancy bodies to act a tight network. In this way, open roof areas can be easily closed and a uniform roof surface can be produced.

It is also possible to cover an area beyond the grandstand, for example with foils or tight meshes fastened to the roof element. In this way, an area lying in front of the grandstand can be shaded and the grandstand roof can be protected from winds.

To determine a relative position of the buoyancy bodies of the

Roof element can pretend to each other

According to the invention advantageously provided that the roof element has connecting elements for producing a rigid connection of the buoyancy body of the roof element. In this way it is possible to produce a shear-resistant connection of the individual buoyancy body or a dimensionally stable roof element. Due to the rigid connection of the buoyancy bodies, an altitude of the buoyancy bodies can also be predetermined relative to each other, so that an architectural topography of the roof surface can be predetermined, for example, in waveform.

But it is also conceivable, the buoyancy bodies so

connect to each other that a relative movement of the buoyancy body is possible in a predetermined amount.

Advantageously, the buoyancy bodies are connected to each other by rigid connecting elements. The rigid connecting elements may be connecting rods made of a suitable material, on the one hand

is sufficiently mechanically durable and the can absorb occurring forces, and on the other hand only has a low weight. The rigid ones

Connecting rods can also be connected to a substantially rigid support frame. The single ones

Buoyancy bodies can be arranged and fixed in the rigid support frame. Through the support frame is the

Design of the roof element specified. The rigid ones

Conveniently connecting rods can be designed so that the connecting rods can also be used for roof drainage or for filling or emptying the buoyancy bodies with buoyant gas.

But it is also possible and provided according to an embodiment of the inventive idea that the buoyancy bodies are connected by at least one rope or the like. The rope can, for example, on a side facing away from the upper bleacher side to the

Buoyancy bodies are attached. By the at least one rope is tensioned, the relative position of the buoyancy bodies can be specified.

Conveniently, a lot of the individual

Auftriebskorpern located buoyancy gas specifiable.

For example, the amount can be suitable with the help

designed connecting rods or separate

Gas lines are changed. In this way, the individual buoyancy bodies or the roof element can be aligned in a predeterminable position and adapted to the respective prevailing wind conditions. According to the invention it is provided that the roof element with the roof support structure is detachably connectable. Between the buoyancy bodies, for example, a secondary Be arranged structure, which then covered with a suitable film forms a roof panel element. The secondary structure may be stored or fixed on or on the buoyancy bodies, it may be below the

Buoyancy bodies hung or rigid

Connecting elements, or be connected to a rigid support frame. To further stabilize the

According to the invention tribune roof, this secondary structure is then connected to the roof support structure in the area of the upper Tribünenrands.

Advantageously, the buoyancy bodies and the

Roof support structure by fasteners

connectable with each other. In this way, the position of the roof element with respect to the grandstand can be specified. About the fasteners acting on the roof element horizontal forces in the area of the upper tribune rim on the roof support structure

transfer .

In order to attach the roof element or the buoyancy body to the roof support structure and the horizontal forces occurring on the

Roof support structure is transferred to be able

According to the invention advantageously provided that the roof support structure has a projecting beyond the upper edge of the grandstand spur wall and the roof element and / or the buoyancy bodies on the spur wall are detachably fastened. Through this spur wall is the

Roof element also protected against wind influences. According to the invention, it is advantageously provided that the buoyancy bodies can be detachably connected directly by fastening elements with the roof support structure. For further stabilization of the roof structure can also be provided that the buoyancy of the roof element have inner shoring. On these support frames, for example, the connecting elements, connecting rods and fasteners can be attached.

According to the invention, it is provided that a surface of a buoyant body of the roof element substantially has the shape of an ellipsoid. It has been found that by using such zeppelin-shaped

Buoyancy body particularly stable and cost-effective

Roof elements can be constructed. But it is also possible that the buoyancy body a different shape

and, for example, cylindrical or

are designed spherical.

In order to simply position the grandstand roof or the roof element over a grandstand, the invention provides that the roof element has a drive device for positioning and horizontal displacement of the roof

Tribünendaches has. That way that can

Tribune roof according to the invention also be used and reused easily in temporary stadium buildings. But it is also possible, the roof element with the help of

for example, to position helicopters. By a drive device, a horizontal positioning of the roof element, for example, difficult

Wind conditions are supported, so only low horizontal forces and moments act on the roof support structure. It is also possible to use the grandstand roof by means of separate drive devices such as helicopters or vehicles

position.

In an advantageous embodiment of the invention, it is provided that the grandstand roof has substantially an elliptical ring shape or a circular ring shape.

Further details of the invention will be explained with reference to the following embodiment.

It shows:

FIG. 1 shows a schematic sectional view of a tribune roof defined on a tribune,

FIG. 2 is a schematic top view of the grandstand roof illustrated in FIG. 1,

Figure 3 is a schematic sectional view of a

Tribune roof with several essentially toroidal buoyancy bodies,

Figure 4 is a schematic plan view of a grandstand roof with a plurality of substantially toroidal buoyancy bodies. FIG. 1 shows a schematic sectional view of a

Grandstand 1 of a grandstand 2. The grandstand roof 1 has a roof element 3, which on a roof support structure. 4 the grandstand 2 is set. In this schematic

Section view is a buoyant body 5 of the roof element 1 shown cut. The buoyancy body 5 is by means of a support rod 6 with a on the

Roof support structure 4 of the grandstand 2 arranged

Spur wall 7 releasably connected. The buoyancy body 5 is on one of the spur wall 7 opposite side by a connecting element 8 rigidly with not shown

connected to adjacent buoyancy bodies.

Figure 2 shows a schematic plan view of the tribune roof 1 shown in Figure 1 and the roof support structure 4 of the grandstand 2. The roof element 3 is fixed with support rods 6 on the spur wall 7. On the opposite side of the spur wall 7 of the roof element 3 are the

Buoyancy body 5 rigidly connected to each other by means of connecting elements 8. The buoyancy bodies 5 are arranged at a distance from one another. One between the

Floating body 5 remaining roof surface is covered by means of a roof surface element 9. The roof surface element 9 consists of a covered with a foil secondary roof construction. The roof element 3 has an elliptical ring shape. FIG. 3 shows a schematic sectional view of a

Grandstand 1 a grandstand 2. The grandstand roof 1 has a roof element 3, which is fixed to a roof support structure 4 of the grandstand 2. The roof element 3 consists of eight toroidal buoyancy bodies 5. In this

schematic representation of several alternative but also simultaneously applicable ways to connect the buoyancy bodies 5 are shown. The buoyancy bodies can by fasteners 8 and / or by a

Overvoltage 10 and / or connected by an undervoltage 11. It is also possible to fill the buoyant body 5 if necessary via gas lines 12 with buoyant gas.

FIG. 4 schematically shows a top view of a

Grandstand 1 shown. The roof element 3 is fixed with support rods 6 on the spur wall 7 and consists of three toroidal buoyancy bodies fifth

Claims

P A T E N T A N S P R U C H E

Stand roof (1) for covering the stand (2) of a stadium or the like, the stand (2) rising from a lower edge of the stand to an upper edge of the stand and the stand roof (1) on a

Roof support structure (4) is fixed, which is located on an outer edge of the stand

(2) extends over the upper edge of the stand, characterized in that the stand roof (1) is a roof element

(3), which has several gas-tightly separated, interconnected, on a side facing the roof support structure (4) with the roof support structure

(4) has detachably connectable buoyancy bodies (5) filled with a buoyancy gas, the with the

Buoyant gas-filled buoyancy bodies (5) are designed so that vertical roof loads acting on the roof element (3) are approximately compensated for by buoyancy forces acting on the buoyancy bodies (5) of the roof element (3).

Grandstand roof (1) according to claim 1, characterized

characterized in that the buoyancy bodies (5) of the

Roof element (3) are arranged at a distance from one another. Grandstand roof (1) according to claim 1 or claim 2, characterized in that a between the

Floating bodies (5) of the roof element (3) remaining open roof area of at least one

Roof surface element (9) is covered, whereby the

at least one roof surface element (9) is fixed to at least one buoyancy body (5).

Grandstand roof (1) according to one of the above

Claims, characterized in that the roof element (3) has connecting elements (8) for producing a rigid connection of the buoyancy bodies (5) of the

Roof element (3).

5. Stand roof (1) according to one of the above

Claims, characterized in that the

Buoyancy bodies (5) are connected to one another by rigid connecting elements.

6. Stand roof (1) according to one of the above

Claims, characterized in that the

Buoyancy bodies (5) are connected to one another by at least one rope or the like.

7. Stand roof (1) according to one of the above

Claims, characterized in that the roof element (3) can be detachably connected to the roof support structure (4).

8. Stand roof (1) according to one of the above

Claims, characterized in that the Buoyancy body (5) and the upper edge of the stand (4) can be connected to one another by fastening elements (6).

9. Stand roof (1) according to one of the above

Claims that the roof element (3) and/or the

Buoyancy body (5) can be releasably attached to a spur wall (7) arranged on the upper edge of the stand (4).

10. Stand roof (1) according to one of the above

Claims, characterized in that the

Buoyancy body (5) passes through immediately

Fastening elements (6) can be releasably connected to the roof support structure (4).

11. Stand roof (1) according to one of the above

Claims, characterized in that the

Internal buoyancy body (5) of the roof element (3).

Have supporting frames.

12. Stand roof (1) according to one of the above

Claims, characterized in that a surface of a buoyancy body (5) of the roof element (3) essentially has the shape of an ellipsoid.

13. Stand roof (1) according to one of the above

Claims, characterized in that the roof element (3) has a drive device for positioning and horizontally displacing the grandstand roof (1).

having. Grandstand roof (1) according to one of the preceding claims, characterized in that the grandstand roof (1) essentially has an elliptical ring shape or a circular ring shape.