JPH07269010A - Support structure of suspension roof - Google Patents

Abstract

PURPOSE:To reliably suppress swing of a roof plate as a site at which roof plates are placed is utilized to the maximum. CONSTITUTION:A plurality of support columns 1 are erected on a foundation 2 in a state to be spaced away from each other and positioned facing each other and a plurality of through-hole parts 5 are formed in a roof 3. Each support column 1 is inserted in the through-hole part 5, and an annular gap 6 is provided between the the outer peripheral surface of the insertion part of the support column 1 and the inner peripheral surface of the through-hole part 5. The ends on one side of a plurality of suspension materials 7 are fixed in the insertion part of the support column 1, and the ends on the other side of the suspension materials 7 are fixed to the peripheral part of the through-hole part 5 in the roof plate 3, and the roof plate 3 is suspended from each support column 1 through the suspension material 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supporting structure for a suspended roof in which a horizontal load acting on a roof slab is not transmitted to a supporting column.

[0002]

2. Description of the Related Art Conventionally, in many suspended roof structures, a plurality of sets of support columns that are spaced apart from each other and face each other are erected on a foundation, and suspension cables are stretched in parallel between the support columns. , Supporting the roof slab with the suspension cable, or constructing a ring-shaped building frame consisting of a circle or a rectangle in plan view on a foundation, and fixing a support such as a compression ring to the upper part of the building frame, A plurality of suspension cables are stretched in a cross shape or in a radial pattern inside the inside through tension rings or the like, and the roof cable is supported by the suspension cables.
The roof slab and the supporting pillars and the supporting body shake together when a wind force or an earthquake force is applied.

However, in this suspended roof structure, it is necessary to make the support columns for suspending the roof slab have sufficient strength. For this reason, the supporting pillars need to have a more robust structure, and the proportion of supporting pillars and supports occupying the site is large, and the effective space of the site is sacrificed.

In addition to the above, there is also a suspended roof structure as described in Japanese Patent Application Laid-Open No. 5-340133 related to the applicant's application.

In this suspended roof structure, an atrium roof supported between the adjacent buildings is constructed between a plurality of adjacent buildings, and the support portion of the atrium roof can be moved vertically or vertically so as to be horizontally movable in an arbitrary direction. It is equipped with a supporting column for hanging nearby and a hanging wire (hanging material) so that the shaking of one building is not transmitted to another building through the atrium roof, and the relative displacement between the buildings is absorbed. There is. Further, a stopper device with a damping mechanism for suppressing horizontal movement of the atrium roof beyond a certain range is provided,
When the shaking of one building becomes large, the vibration energy is absorbed by a stopper device with a damping mechanism so that the other building does not resonate. When the atrium roof sways due to wind force or seismic force, when the sway is small, the suspension wire is used. When the sway is great and the stopper device with the damping mechanism operates, the stopper device with the damping mechanism is used. The shaking of the roof is suppressed.

[0006]

However, in the support structure for the atrium roof described above, it is possible to horizontally move the support portion of the atrium roof in any direction by the support columns provided on a plurality of adjacent buildings. It is provided so that a wire is hung vertically in the building, so that the shaking of the building itself is not transmitted to other buildings through the atrium roof, and it is provided to absorb the relative displacement between the buildings. In such a support structure, the number of support columns used is naturally limited because the support columns are installed on the building. Since these support pillars suspend the atrium roof through suspension wires, and the support pillars support the side portions of the atrium roof through the stopper device with the energy damping mechanism, a horizontal roof working on the atrium roof is obtained. The supporting column bears a large load due to the load. For this reason, it is necessary to construct the support column robustly. Furthermore, the site covered by the atrium roof will be significantly narrowed down by support structures such as support columns, and the site cannot be used effectively.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to provide a supporting structure for a suspended roof in which a roof slab is supported by a supporting column via a suspending member. It is to prevent the horizontal force from being applied to the building and to cover the site with a roof slab so that the shaking of the roof slab itself can be suppressed.

[0008]

In order to achieve the above-mentioned object, according to the present invention, a plurality of support pillars that are spaced apart from each other and face each other are erected on a foundation, and a plurality of through holes are formed in a roof slab. The support pillars are inserted into the through holes, and an annular gap is formed between the outer peripheral surface of the insertion portion of the support pillars and the inner peripheral surface of the through hole, and the support pillars are inserted. The end of the plurality of suspension members to the section, and the other end of the suspension member is fixed to the peripheral portion of the through hole in the roof slab, and the roof is attached to each of the support columns via the suspension member. It is a hanging plate.

[0009]

According to the above construction, when installing the roof slab, a plurality of support pillars that are spaced apart from each other and face each other are erected on the foundation, and the support pillars are inserted through the through holes of the roof slab. One end of a plurality of suspension members is fixed to the insertion portion of the support column, and the other ends of the suspension members are fixed to the peripheral portions of the through holes in the roof slab.

Further, when the roof slab receives wind force or seismic force, the roof slab swings in the horizontal direction where the force acts while being supported by the supporting device and the suspending member suspended from the supporting column. . At this time, due to the balance between the pushing force when the roof slab is moved horizontally by the action of the pendulum and the restoring force due to the weight of the pushed roof slab, the roof slab has a restraining force that tries to return it to its original stationary state. To do. The swing effect of the roof slab is adjusted by such a spring effect.

The size of the swing of the roof slab supported by the hanging member can be adjusted by changing the length of the hanging member suspended on the support column, and the swing is effectively suppressed. This enables economical design without applying horizontal load to the supporting columns.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front sectional view taken along the line AA of FIG. 3 showing a supporting structure for a suspended roof according to an embodiment of the present invention.
Is an enlarged sectional view taken along the line BB of FIG. 1, FIG. 3 is a plan view of FIG. 1, and FIG. 4 is an enlarged sectional view taken along the line C-C of FIG.

In these drawings, reference numeral 1 is a plurality of support pillars standing upright on a foundation 2 and facing each other with a space therebetween, and 3 is a roof slab. Incidentally, 4 is a support wall, which is installed on the foundation 2 so as to face the inner surface 3a of the roof slab 3.

A plurality of through holes 5 are formed in the roof slab 3, and the support columns 1 are inserted into the through holes 5, and the outer peripheral surface of the insertion part of the support columns 1 and the through holes are formed. An annular gap 6 is formed between the inner peripheral surface of the portion 5. Also,
A support flange 1 a is formed on the upper end of the insertion portion of the support column 1.

Further, 7 is a plurality of suspension cables constituting a suspension member. One end of each suspension cable 7 is fixed to the insertion portion (support flange 1a in the embodiment) of the support column 1 and the other end is suspended. Each of the through holes 5 in the roof slab 3
It is fixed to the peripheral portion of the through hole 5 and is arranged at intervals in the circumferential direction of the through hole portion 5.

The roof slab 3 is swingably suspended by the insertion portion of each of the support columns 1 via the suspension cable 7. In the drawing, the suspension cable 7 is vertically stretched between the insertion portion of the support column 1 and the roof slab 3.
The suspension cable 7 may be stretched in the state shown by the chain double-dashed line in FIG. In that case, the spring effect can be further enhanced by adjusting the angle of the suspension cable 7, and the swing of the roof slab can be effectively adjusted.

The inner surface 3a of the roof slab 3 and the support wall 4
A supporting device 8 for supporting the vertical load of the roof slab 3 is provided between the upper part 4a and the upper part 4a. This support device 8
Are provided on the inner surface 3a of the roof slab 3 and the upper portion 4a of the support wall 4 respectively, and spherical support seats (not shown) are provided.
To the spherical seat on one side, one journal 8a of the supporting member 8b having spherical journals 8a at both ends is engaged, and the other journal 8a is engaged to the spherical seat on the side of the roof slab 3 so that the space between the spherical seats. The support member 8b is vertically interposed.

Further, a supporting portion 4b facing the side portion 3c of the roof slab 3 is formed on the upper portion 4a of the supporting wall 4,
The supporting portion 4b is provided with a shock absorber (a stopper device with a damping mechanism) or an actuator 9 for abutting the side portion 3c of the roof slab 3 to suppress horizontal movement of the roof slab 3 beyond a certain range. Has been.

According to the above construction, the roof slab 3 is installed by arranging a plurality of support pillars 1 standing on the foundation 2 so as to be spaced apart from each other, and the support pillars 1 are provided in the through holes 5 of the roof slab 3. While fixing one end of a plurality of suspension cables 7 to the insertion portion of the support column 1 and fixing the other ends of the suspension cables 7 to the peripheral portions of the through holes 5 in the roof slab 3, respectively. ,
A support device 8 is provided between the inner surface 3a of the roof slab 3 and the upper portion 4a of the support wall 4, and a shock absorber or actuator 9 is provided between the side portion 3c of the roof slab 3 and the support portion 4b of the support wall 4. Do it.

When the roof slab 3 receives wind force or seismic force, the roof slab 3 is supported by the supporting device 8 and the suspension cable 7 suspended by the support column 1 and the force acts on the roof slab 3. Swing horizontally. At this time, due to the balance between the pushing force when the roof slab 3 is horizontally moved by the action of the pendulum and the restoring force of the pushed roof slab 3 due to its own weight, the roof slab 3 is restrained from returning to its original stationary state. Power acts. The swing effect of the roof slab 3 is adjusted by such a spring effect.

Roof slab 3 supported by the suspension cable 7
The magnitude of the swing of the support column 1 can be adjusted by changing the length of the suspension cable 7 suspended on the support column 1, and a horizontal load is applied to the support column 1 by effectively suppressing the swing. Economical design is possible. Such a damping function is achieved by the support flange 1a of the support column 1 and the outer surface 3b of the roof slab 3.
And the suspension cable 7 is vertically stretched between them.

Further, when the roof slab 3 attempts to move horizontally beyond a certain range, the movement is suppressed by the shock absorber or the actuator 9, so that the vibration damping function is enhanced. Further, by suppressing the horizontal movement of the roof slab 3 by the shock absorber or the actuator 9, the annular gap 6 formed between the outer peripheral surface of the insertion portion of the support column 1 and the inner peripheral surface of the through hole portion 5 is formed. It can be made smaller and the rain can be easily removed.

In the above embodiment, the inner surface 3a of the roof slab 3 is
Also, a spherical seat is provided on the upper part 4a of the support wall 4, and both ends of the support member 8b are spherically supported by the spherical seat, so that the roof slab 3 reliably responds to all the swinging directions of the roof. Although the slab 3 can be supported, if the swaying direction of the roof slab 3 is limited to one direction, it is not shown in the figure but directly on the upper portion 4a of the support wall 4 or fixedly on the upper portion 4a. It is also possible to use a roller support type in which a roller that is brought into contact with the inner surface 3a of the roof slab 3 is provided on the upper end of a support member (not shown) provided.

Further, a shock absorber or actuator 9 is provided between the side portion 3c of the roof slab 3 and the support portion 4b of the support wall 4, but not the side portion 3c of the roof slab 3 but the inner surface 3a of the roof slab 3.
Alternatively, a protrusion (not shown) may be formed so as to be brought into contact with the shock absorber or the actuator 9. In this case, like the support device 8, there is an advantage that the shock absorber or the actuator 9 can be housed under the roof slab 3 without protruding outward from the side portion 3c of the roof slab 3.

[0026]

As described above, according to the present invention, a plurality of support pillars that are spaced apart from each other and face each other are erected on the foundation.
A plurality of through holes are formed in the roof slab, the support columns are inserted into the through holes, and an annular gap is provided between the outer peripheral surface of the insertion section of the support column and the inner peripheral surface of the through hole. Forming and fixing one end of a plurality of suspension members to the insertion portion of the support column, the other end of the suspension member is fixed to the peripheral portion of the through hole portion in the roof slab, the suspension member Since the roof slab is hung on each of the support columns through the roof slab, when the roof slab is shaken by wind force or seismic force, the roof slab acts on the sill while being supported by the hanging members hung on the support columns. Rocks horizontally. At this time, due to the balance between the pushing force when the roof slab is moved horizontally by the action of the pendulum and the restoring force due to the weight of the pushed roof slab, the roof slab exerts a restraining force that tries to return it to its original stationary state. To do. With such a spring effect, the swing of the roof slab can be effectively adjusted.
Horizontal movement of the roof slab exceeding a certain range can be prevented by a shock absorber (a stopper device with a damping mechanism) or an actuator that suppresses horizontal movement.

Further, since the size of the swing of the roof slab supported by the suspension member can be adjusted by changing the length of the suspension member suspended by the support column, the swing is effective. By restraining it, it becomes possible to design economically without applying a horizontal load to the supporting column. Therefore, it is not necessary to increase the thickness of the support column unnecessarily to make the support column strong, and the cost can be reduced.

Further, since the support pillar is inserted through the roof slab and the roof slab is hung from the support pillar through the suspending member,
It is not necessary to hang the roof slab outside the site covered by the roof slab as in the conventional case, and therefore, the limited site can be maximally utilized as a roof slab installation space, and as a result, effective use of the site can be achieved.

Further, since the supporting columns are inserted into the roof slab and the roof slab is suspended, the number, shape and position of the supporting columns are taken into consideration in consideration of the weight or load distribution of the roof slab and the effective space of the site. Can be appropriately selected. From this, it is possible to surely support the roof slab and to prevent the supporting pillars from being occupied too much in the site, and from this point, the site can be effectively used.

[Brief description of drawings]

FIG. 1 is a front sectional view taken along the line AA of FIG. 3 showing a supporting structure for a suspended roof according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line BB of FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is an enlarged cross-sectional view taken along the line CC of FIG.

[Explanation of symbols]

1 Support Pillar 2 Foundation 3 Roof Slab 4 Support Wall 5 Through Hole 6 Gap 7 Suspending Cable (Suspending Material) 8 Support Device 9 Buffer (Stopper Device with Damping Mechanism) or Actuator

Claims (3)

[Claims] 1. A plurality of support pillars that are spaced apart from each other and opposed to each other are erected on a foundation, a plurality of through holes are formed in a roof slab, and the support pillars are inserted into the through holes, respectively. An annular gap is formed between the outer peripheral surface of the insertion portion of the support column and the inner peripheral surface of the through hole, and one end of a plurality of suspension members is fixed to the insertion portion of the support column, The other end of the roof slab is fixed to the peripheral portion of the through hole portion in the roof slab, and the roof slab is hung from the support pillars via the suspension member. 2. The supporting structure for a suspended roof according to claim 1, further comprising a supporting device for supporting a vertical load of the roof slab. 3. The suspension roof supporting structure according to claim 1, further comprising a stopper device with a damping mechanism for suppressing horizontal movement of the roof slab over a certain range.