JPH0742737B2 - Supporting method for large span roof - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a building such as an aircraft hangar in which a large span roof is erected between two supports constructed at a considerable distance. The method of supporting a large span roof in.

[Prior Art and its Problems] Conventionally, a building having a large span roof, such as a hangar for an aircraft, is a box-shaped structure having a three-dimensional truss roof structure.

However, since the large span roof uses a large amount of steel especially for the space truss roof portion, not only its own weight becomes heavy, but also the work station for inspecting and repairing the aircraft is movably suspended from the roof. However, the load applied to the roof is further increased, so that it is necessary to increase the size of the truss, and there is a problem that the truss occupies the space in the attic and narrows it.

[Object of the Invention] The present invention has been made in order to solve the above-mentioned conventional problems, and an object of the present invention is to provide a door as a third support in addition to a support on both sides for supporting a roof. The purpose of the present invention is to provide a supporting method for a large-span roof that can reduce the roof structure such as truss by compensating the drawbacks of the conventional large-span roof.

[Structure of the Invention] A method for supporting a large span roof according to the present invention is a building in which a large span roof is installed between two supports constructed with a considerable distance from each other. It is characterized in that a large number of doors are provided between the end portions so as to be movable to arbitrary positions, and a part of the load of the roof is supported by these doors.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a support, which may be either a pillar structure or a wall structure.

The two supports 1, 1 are at a considerable distance from each other, for example 100
It is built with a space of ~ 300m.

A roof 2 made of a space truss is installed between the supports 1 and 1. In the present invention, the roof 2 does not necessarily have to be a space truss.

Reference numeral 3 is a door, and a large number of doors are arranged between one side ends of the support 1.

As is clear from FIG. 3 (A), the door 3 can be moved to an arbitrary position by rolling a roller 3a provided at the lower end of the door 3 onto the guide rail 4. For this movement, the roller 3a may be appropriately rotated by an electric motor (not shown).

Jacks 7 are provided on both sides of the roller 3a and on the upper end portion of the door 3 so that the door 3 is stretched and fixed vertically at the moved position, and the roof 2 is supported via the girder 8. It has become. The plurality of jacks 7 are simultaneously operated by the controller 9.

FIG. 3 (B) shows another embodiment in which rollers 3a and 3b are provided at the lower end and the upper end, and the rollers 3a and 3b roll along the guide rails 4 and 5, respectively. By this, it is possible to move to any position. The upper guide rail 5 may be integrally connected to the roof 2 or may be the truss member itself that constitutes the roof 2.

Further, it is preferable that the lower roller 3a is rotationally driven by the prime mover 6 to move the door 3 by power.

Further, the upper roller 3b presses and supports the upper guide rail 5 with a jack 7. Therefore, a part of the load of the roof 2 is supported by the door 3 via the guide rail 5.

Since this embodiment is configured as described above, for example, in order to move in and out the central aircraft, as shown in FIG. 4, the door 3 at the entrance / exit portion is moved to both sides and stopped at point A. The roof 2 is supported by the closed door 3. At this time, the roof 2 is A
By being supported by the span of the distance L between the points, the structure of the roof 2 should be structurally designed with the span of the maximum distance L unless the doors 3 are absolutely expanded without allowing a plurality of aircraft to enter and leave at the same time. You're done.

Further, as shown in FIG. 5, if the door 3 is moved in accordance with the movement of the mobile work station 10 suspended from the roof 2, the load of the mobile station 10 should always be supported by the door 3. Therefore, the burden on the roof 2 can be reduced.

In the present invention, since the door 3 always moves to any position to support the roof 2, it is meaningless to provide the door pocket, but it does not hinder the installation of the door pocket.

[Advantages of the Invention] Since a large number of doors are movably provided and these doors are used as pillars, a part of the load of the roof can be borne by the doors. The distance is shortened, as a result, the roof structure can be reduced, the structure can be constructed safely and inexpensively, and various roof structures can be designed without being fixed to the conventional large truss frame roof.

[Brief description of drawings]

FIG. 1 is an elevational view showing an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIGS. 3 (A) and 3 (B) are explanatory views showing the main part of the door, FIGS. 4 and 5, respectively. The figure is an explanatory view showing a usage example. 1 ... Support, 2 ... Roof, 3 ... Door, 3a, 3b ... Roller, 4,5 ...
Guide rail, 6 ... motor, 7 ... jack, 8 ... garder, 9 ... controller, 10 ... work station.

Claims (1)

[Claims] 1. In a building in which a large span roof is erected between two supports constructed at a considerable distance from each other, a large number of doors are provided at arbitrary positions between one side ends of the supports. A method for supporting a large span roof, characterized in that a part of the load of the roof is supported by these doors while being provided so as to be movable.