JPH061012B2 - Roof membrane unit - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a roof membrane unit capable of prefabricating a roof membrane in a frame membrane structure.

<< Prior Art >> In a large-scale lightweight framed membrane structure, the roof membrane is fixed to a beam formed in a predetermined pattern, and tension is introduced into the cable arranged in the center of the roof membrane to make the cable The roof membrane should be stretched with a predetermined tension by using the tension position of the roof as a valley, or tension aggregates should be laid between the beams, and after tensioning the roof membrane, the tension aggregate should be raised to raise the roof. It is practiced to tension the membrane.

<< Problems to be Solved by the Invention >> However, in any of these structures, since the roof membrane is stretched on the beam by on-site construction, the membrane tensioning work is troublesome. Further, in the former method of introducing tension by the wire, since the portion where the wire hits is inevitably a valley, the beam must be formed in a predetermined arch shape, and the construction of the beam is troublesome. . On the other hand, in the latter method of raising the tension aggregate, particularly in a large-scale roof membrane structure, since many tension aggregates are required, the number of man-hours becomes extremely large, and since it is work at high places, Workability is extremely low. Furthermore, since the stretched shape of the roof membrane depends on the sectional shape of the beam, in order to stretch the roof membrane in a certain pattern shape, the shape of the beam must be made to match that pattern. There was such an inconvenience.

The present invention has been made in view of the above problems, the roof membrane can be mounted on the ground portion, and the individual pattern shapes of the roof membrane can be freely set without being influenced by the shape of the beam. The purpose is to make it easy to introduce tension and to manage tension easily.

<< Means for Solving the Problems >> In order to achieve the above object, in the present invention, a frame-shaped frame fixed on a beam, a roof membrane whose peripheral edge is fixed to the frame-shaped frame, and the roof membrane One end is connected to the tension introducing frame which is on the back surface and is hung between the frame-shaped frames, and the cable which is suspended along the lower part of the beam and is arranged in the same direction as the tension introducing frame, and the other end is connected to the cable. It is composed of a connecting member connected to a tension introducing frame, and by applying tension to the cable, the tension introducing frame is pushed up through the connecting member to introduce the tension to the roof membrane. .

<< Embodiment >> A preferred embodiment of the present invention will be described in detail below with reference to FIGS.

First, in FIGS. 1 and 2, 1 is a beam forming a roof structure part of a building formed in a vertical and horizontal rhombus, and 2 is a roof membrane unit fixed to the upper part of each rhombus of the beam 1. .

The roof membrane unit 2 includes a frame-shaped frame 3 formed in a diamond shape in conformity with the plan shape of the beam 1, and a roof membrane 5 whose peripheral edge is fixed on the frame-shaped frame 3 via a mounting bracket 4. I have it.

A fixing plate 6 is integrated with each diagonal inner peripheral portion of the frame frame 3, and both ends of a tension-introducing frame 7 formed in an arc shape between the fixing plates 6 are slidably mounted vertically.

Further, at the mounting position of the tension introducing frame 7, a guide pipe 8 is vertically penetratingly mounted on the fixed plate 6, and a connecting member; that is, a connecting rod 9 is vertically slidably mounted on the guide pipe 8. ing. The upper end of the connecting rod 9 is in contact with the lower end of the tension introducing frame 7 so as to face it, and a pulley 11 is attached to the lower end of the connecting rod 9 via a bracket 10.

A cable 13 is suspended below the beam 1 in parallel with the tension introducing frame 7. The cable 13 is hung over a pulley 12 attached via a bracket 1a provided at the intersection of the diagonal lines of the beam 1. The cable 13 is connected to the connecting rod 9 by passing the cable 13 through the pulley 12 and the pulley 11 on the side of the connecting rod 9. Since each unit 2 in the attached state has the tension introducing frames 7 arranged in a straight line on a diagonal line, the cable 1
3 is common to the tension introducing frames 7 arranged on this straight line.

In the above structure, when the tension F shown in the arrow direction is introduced into the cable 13, the connecting rod 9 is pushed up by the tension F as indicated by the arrow, and the tension introducing frame 7 is pushed up. As a result, the tension introducing frames 7 are simultaneously roofed. The membrane 5 is pushed up from the inner surface and projected in a bow shape as shown in FIG. As a result, the tension introducing frame 7 is provided for each roof membrane unit 2.
The roof membrane 5 can be stretched in a shape corresponding to the bow shape of the above.

The roof membrane unit 2 is assembled by preliminarily attaching the periphery of the roof membrane 5 to the frame 3 by factory production or the like, and further combining the tension introducing frame 7 and the connecting rod 9 from this combination. The unit 2 is fixed to the beam 1 and the cable 13 is passed through the pulley 11 to prepare for tension introduction.

Then, after all the roof membrane units 2 are mounted on the beam 1, the tension F is introduced to the cable 13 so that the tension is simultaneously introduced for each roof membrane unit 2.

In addition, in the embodiment, the shape of the frame-shaped frame 3 of the roof membrane unit 2 is formed in a rhombic shape in accordance with the rhombic shape of the beam 1, but the extending direction of the cable 13 and the direction of the tension introducing frame 7 are aligned. Therefore, the frame 3 can be formed in a polygonal shape other than a triangular shape, and can be freely set in a shape according to the design.

<Effects of the Invention> As described in detail with reference to the embodiments above, in the roof membrane unit according to the present invention, the roof membrane is not mounted on the beam by on-site construction as in the conventional case, and the roof membrane unit is manufactured by a factory or the like. The prefabricated roof membrane unit is fixed on the beam, and after fixing all units, tension can be introduced into the roof membrane by pulling the cable, so the quality after construction is uniform. Moreover, since it is only necessary to fix the frame-shaped frame to the beam, the construction is simple, and the tension can be introduced all at once, and unlike the one directly acting on the roof membrane by the cable, tension management can be done easily. There are advantages.

[Brief description of drawings]

1 is a perspective explanatory view showing a state where a roof membrane unit according to the present invention is fixed to a beam, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is a perspective view showing a state in which tension is introduced. FIG. 1 ………… beam 2 ………… roof membrane unit 3 ………… frame frame 5 ………… roof membrane 7 ………… tension introducing frame 9 ………… connecting rod 13 ………… cable

Claims (1)

[Claims] 1. A frame-shaped frame fixed on a beam, a roof membrane whose peripheral edge is fixed to the frame-shaped frame, and a tension-introducing frame provided on the back surface of the roof membrane and stretched between the frame-shaped frames. A connecting member having one end connected to a cable suspended along the lower part of the beam and arranged in the same direction as the tension introducing frame, and the other end connected to the tension introducing frame, and a tension is applied to the cable. A roof membrane unit, characterized in that the tension membrane is pushed up through the connecting member to introduce tension into the roof membrane.