JP5450971B2 - Vibration control panel installation structure - Google Patents

Description

  The present invention relates to an installation structure of a damping panel in a building in which a steel frame column and a beam constitute a frame and a concrete floor panel constitutes a floor.

  Conventionally, in new or existing buildings, plate-like members have been placed between the upper and lower beams to improve vibration resistance during earthquakes (for example, patents). Reference 1). For buildings in which concrete floor panels such as ALC (lightweight cellular concrete) are laid on a steel frame, a fixed hardware that fixes the plate-shaped member along the position of the plate-shaped member ( It is necessary to mount and fix the support member in Patent Document 1 on the upper flange of the beam, and to place the floor panel lacking the interference portion with the fixed hardware on the upper flange of the beam.

JP 2002-309798 A

  In general, the above floor panel is provided with reinforcing bars in the longitudinal direction, and the short side of the floor panel serves as a support side, and in order to avoid attaching fixed hardware to the beam supporting the floor panel, It is necessary to consider this, and it may be necessary to change the arrangement of the beams from the original design. In addition, when performing seismic reinforcement (vibration damping) of an existing building, it is necessary to process the floor panel while it is laid in order to expose the beam covered with the floor panel. It took.

  The present invention solves the above-mentioned problems of the prior art, has no effect on the attachment of other structural members such as beams, whether it is a newly built building or an existing building, and can be easily installed. It aims at providing the installation structure of the damping panel which can be done.

The first configuration of the installation structure of the vibration control panel according to the present invention for solving the problems of the prior art is a building in which a frame is configured with steel columns and beams, and a floor is configured with a concrete floor panel. Wherein the beam is made of H-shaped steel, and the vibration control panel is disposed along a boundary line between the atrium space and the room space inside the building, and the upper end of the vibration suppression panel. Is fixed by a pair of L-shaped fixed brackets attached to the lower flange of the upper beam, and the lower end of the vibration control panel is J-shaped and the lower flange is the upper beam. Of the upper flange of the beam located immediately below the receiving panel, which is attached to the blow-off space side where the floor panel is not placed, and whose upper flange extends above the lower flange and above the floor panel, and the receiving object Secure to the top flange Characterized in that it is fixed by cross-section L-shaped pair of fixing hardware.

  Here, the atrium space refers to a space that does not have a floor inside the building, and is a concept that includes a staircase with stairs. The living room space is a space having a floor and a ceiling inside the building.

  The second configuration of the installation structure of the vibration control panel according to the present invention is that the vibration control panel is made of transparent glass, and the upper and lower ends thereof are fixed by the fixed hardware via a vibration damper made of a viscoelastic body. It is characterized by that.

  According to the first configuration of the installation structure of the vibration control panel according to the present invention, the vibration control panel is attached using a beam without an obstacle such as a floor panel on the boundary line between the atrium space and the living room space. It is not necessary to cut out the wall panel, it can be easily constructed regardless of whether it is newly constructed or built, and the support of the floor panel does not become a problem.

  According to the 2nd structure of the installation structure of the damping panel which concerns on invention, since the damping panel was comprised with the transparent glass, it became easy to take in light to a living room space, improving a seismic performance, An open feeling can be given to space. Furthermore, since the damping panel is fixed via a damping damper made of a viscoelastic body, an excessive force acts on the glass constituting the damping panel even if the damping panel is installed facing the blow-through space. There is no risk that the glass will break and fall to the lower floor, causing harm to residents.

  Next, the most preferable form of the installation structure of the damping panel according to the present invention will be described with reference to the drawings.

[First embodiment]
First, a first embodiment will be described with reference to FIGS. This embodiment is a structure for installing a vibration control panel in a steel-frame industrial house having a flat module of 305 mm. FIG. 1 is a diagram showing the allocation of beams and floor panels on the third floor, and FIG. FIG. 3 is a diagram showing the configuration of the holding portion of the support portion of the vibration control panel.

  As shown in FIGS. 1 and 2, this building A is composed of a steel frame 1 and a large beam 2 that are rigidly joined together to form a three-layer steel frame structure. A floor panel 4 made of ALC (lightweight aerated concrete) is laid on the floor to constitute a floor, and a wall panel 5 and an opening panel 6 made of ALC are attached to the large beam 2 on the outer peripheral portion to constitute an outer wall.

  The pillar 1 is erected on the intersection of orthogonal reference lines (one-dot chain line in the figure), and the large beam 2 is arranged on the reference line so as to connect the adjacent pillars 1 to each other. And the small beam 3 is spanned suitably between the large beams 2 arranged in parallel. The large beam 2 and the small beam 3 are made of H-shaped steel, and the upper and lower flanges and webs are provided with bolt holes for joining the small beam 3 and various incidental members with bolts 17 at a pitch based on the module. . The floor panel 4 is supported by placing at least two short sides, which are support sides, on one side of the upper flange of the large beam 2 or the small beam 3. An atrium space 7 in which the floor panel 4 is not laid is formed in a partial region of the third floor A3 inside the building A, and the second floor A2 space and the third floor A3 space are in communication. A top light 9 is provided on the rooftop floor A4 above the atrium space 7.

  Large beams 2 ′ and small beams 3 ′ are arranged on the boundary line between the living room space in which the floor panel 4 inside the building A is laid and the eight atrium space 7 (reference line of the boundary part). The floor panel 4 is placed on the living room space 8 side of the upper flanges of the large beams 2 ′ and the small beams 3 ′ on the boundary line of the third floor A 3, and no floor panel is placed on the atrium space 7 side. Also on the rooftop floor A4, large beams 2 'and small beams 3' are arranged at positions corresponding to the boundary between the atrium space 7 and the living room space 8.

  As shown in FIG. 3, in the large beam 2 ′ and the small beam 3 ′ on the third floor A <b> 3, a receiving object 10 having a substantially J-shaped cross section in the longitudinal direction is placed on the blowout side of the upper flange, and a bolt hole is used. And are attached with bolts 17. The upper flange of the receiver 10 also extends on the floor panel, and an adjustment plate 11 is inserted in the gap between the upper flange and the floor panel. A pair of L-shaped fixed fittings 12 are attached to the flanges of the receiving piece 10 and the lower flanges of the large beam 2 ′ and the small beam 3 ′ on the rooftop floor A <b> 4 with bolts 17 via the adjustment plate 11. The damping panel 15 is made of a rectangular plate-like transparent glass. A plate-like damping damper 13 made of a viscoelastic body is bonded to both upper and lower ends of the damping panel 15, and a predetermined amount is attached to the outer surface side of the damping damper 13. A fixing plate 14 having a threaded bolt hole in position is bonded. The vibration control panel is fixed by bolts 17 in a state where the bolt holes of the fixing hardware 12 and the bolt holes of the fixing plate 14 are aligned.

  The vibration control panel 15 may be other glass such as tempered glass or laminated glass, or synthetic resin such as acrylic other than general glass. However, in order to ensure safety at the time of fire, glass made of non-combustible material is preferable. Further, the vibration damper 13 may be arranged continuously or may be partial, and may be determined appropriately according to the required performance.

  According to the installation structure of the vibration control panel having the above-described configuration, when an earthquake occurs, the upper and lower large beams 2 'and small beams 3' are displaced between layers, and the structural surface is repeatedly shear-deformed in both positive and negative directions. The vibration energy is absorbed by the hysteresis deformation in the composition direction of the damping damper 13 at that time, and the vibration of the building A is attenuated.

  Since the vibration control panel 15 is attached by using a part of the beam without an obstacle such as the floor panel 4 on the boundary line between the atrium space 7 and the living room space 8, even if it is a newly built building, Construction can be easily performed even in the case of a building, and maintenance such as inspection and replacement of the vibration damper 13 and the vibration control panel 15 can be easily performed.

  The light from the top light 9 is supplied to the living room space 8 on the third floor A3 through the vibration control panel 15 made of transparent glass. Further, light from the opening panel 6 or light from the lighting device in the third-floor A3 room is supplied to the second-floor A2 room space 8 through the vibration control panel 15 on the outer wall surface of the third-floor A3 room space 8. Therefore, it is easy to incorporate light into the living room space 8 while improving the seismic performance, and it is possible to give a sense of openness to each living room space 8.

  Since the damping panel 15 is fixed via the damping damper 13 made of a viscoelastic body, an excessive force acts on the damping panel made of transparent glass even if the damping panel 15 is installed facing the atrium space 7. Therefore, there is no risk that the vibration control panel 15 is broken and falls into the room space 8 on the second floor A2, causing harm to residents. Further, since the vibration control panel 15 is made of non-combustible glass, it can function as a fireproof partition wall and can improve safety in the event of a fire.

[Second Embodiment]
Next, a second embodiment will be described with reference to FIG. Although the basic configuration of this embodiment is the same as that of the first embodiment, in this embodiment, the straight staircase 16 connecting the second floor A2 and the third floor A3 and the third floor A3 and the rooftop floor A4 in the atrium space. A staircase is configured by overlapping 16 'and a vibration control panel 15 is provided on the long side of the straight staircase. The rooftop is provided with a penthouse that has a glass door and functions as a top light.

  The straight staircases 16 and 16 'are so-called skeleton staircases in which a framework is exposed and a simple rail like a rail is added, and a vibration control panel 15 made of transparent glass is disposed at a position along the straight staircases 16 and 16'. Therefore, the living room space 8 on the third floor A3 can be an open and bright space.

  The installation structure of the vibration damping panel according to the present invention is not limited to the ramen structure, and can be applied to a structure type in which a load bearing element is added to a shaft group composed of columns and beams, such as a pin brace structure.

It is a figure which shows allocation of the beam and floor panel of the 3rd floor in 1st Example. It is sectional drawing of the atrium space in which the damping panel in 1st Example was installed. It is a figure which shows the structure of the holding | maintenance part of the support part of the damping panel in 1st Example. It is a figure which shows the installation state of the damping panel in 2nd Example.

A ... Building A2 ... 2nd floor A3 ... 3rd floor A4 ... Rooftop 1 ... Pillar 2 ... Large beam 2 '... Large beam on the boundary line 3 ... Small beam 3' ... Small beam on the boundary line 4 ... Floor panel 5 ... Wall panel 6 ... Opening panel 7 ... Vented space 8 ... Living room space 9 ... Top light 10 ... Received object 11 ... Adjustment plate 12 ... Fixed hardware 13 ... Damping damper 14 ... Fixing plate 15 ... Damping panel 16, 16 '... Straight staircase 17 ... bolt

Claims (2)

It is an installation structure of a damping panel in a building in which a frame is composed of steel columns and beams, and a floor is composed of concrete floor panels,
The beam is made of H-section steel,
The vibration control panel is disposed along a boundary line between the atrium space and the living room space inside the building,
The upper end of the vibration control panel is fixed with a pair of fixed hardware having an L-shaped cross section attached to the lower flange of the upper floor beam,
The lower end of the vibration control panel is attached to the aerial space side where the floor panel is not placed among the upper flanges of the beam whose cross section is J-shaped and the lower flange is located immediately below the upper floor beam, and the upper flange is It is fixed by a receiving metal extending above the lower flange and above the floor panel, and a pair of fixing hardware having an L-shaped cross section fixed to the upper flange of the receiving metal. Vibration panel installation structure.   2. The vibration control panel installation structure according to claim 1, wherein the vibration control panel is made of transparent glass, and upper and lower ends thereof are fixed by the fixed hardware through a vibration damper made of a viscoelastic body. .

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