JP2006336261A - Lightweight steel skeleton building having vibration suppressing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress vibrations of a column of a prefabricated lightweight steel skeleton building, by arranging a concrete corner support at a projected corner of the building. <P>SOLUTION: The lightweight steel skeleton building has a vibration suppression structure which is implemented by arranging the concrete corner support (2) at the projected corner 1 of the building. Specifically the vibration suppression structure is constructed by attaching the concrete support 2 having corner forming surfaces opposed to a corner column 1 erected on a continuous footing 3, erecting the concrete support 2 which has been integrally or rigidly connected to the continuous footing 3, and interposing a viscoelastic material or a vibration absorbing material 4 in a gap between faces of the corner column 1 and the corner support. Herein the concrete support 2 is formed of reinforced concrete (RC) having the corner forming surfaces exhibiting an L-shaped cross section, and the reinforced concrete is placed in the field in parallel with construction of the continuous footing 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a prefabricated lightweight steel structure, and more particularly, to a lightweight steel structure having a vibration suppressing structure in which a corner support made of concrete is provided at a protruding corner.

2. Description of the Related Art Conventionally, there has been known a structure in which a brace-type corner column is provided at a corner portion of a lightweight steel structure building and connected to a beam, and strength-proof reinforcement related to horizontal strength and rigidity is performed. (For example, see Patent Document 1.)
Japanese Patent Laid-Open No. 11-17264

In addition, it is known that the existing wooden houses are externally reinforced to increase the earthquake resistance. (For example, see Patent Documents 2 and 3.)
Japanese Patent Laid-Open No. 2002-4590 Japanese Patent Application Laid-Open No. 2001-2000642

  However, there are no prefabricated lightweight steel structures that have a vibration suppression structure that combines concrete products to suppress column runout.

  The problem to be solved is to suppress the run-out of the pillars of the prefabricated lightweight steel structure. Specifically, the corner support made of concrete is provided at the exit corner to provide a vibration suppression structure. There is.

  This invention is made | formed in view of such a situation, Comprising: The said subject is solved, and the corner support made from concrete is provided in the projecting corner part of the lightweight steel frame building prefabricated, and it has a vibration suppression structure. It provides a lightweight steel structure.

In order to solve the problem, the present invention provides a prefabricated lightweight steel structure,
A lightweight steel structure having a vibration suppression structure with a corner support made of concrete in the protruding corner,
A concrete support having a corner surface facing a corner pillar standing on a fabric foundation is attached, and the concrete support is integrated with or rigidly joined to the cloth foundation, A viscoelastic material or a vibration absorbing material is interposed between the surfaces.

  According to the present invention, the corner support made of concrete is provided for the corner column, and the column foundation is integrally or rigidly joined to the corner foundation, so that the column deflection can be effectively suppressed.

  In the above configuration, the best mode for carrying out the present invention is such that the concrete support is reinforced concrete (RC) having an L-shaped corner surface in cross section, and is placed on-site together with the construction of the fabric foundation. Of course, rigid joining of the precast product to the fabric foundation may also be considered.

  Further, the inter-surface gap between the concrete support and the corner column is several tens of millimeters, and a viscoelastic material or a vibration absorbing material is interposed in the gap. Preferably, a resin material having rubber elasticity is installed in a bar shape in the longitudinal direction of the gap and spaced apart in the surface circumferential direction.

  An embodiment of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a plan view of an example building.

  FIG. 2 is a detailed plan view of a corner support of the example building.

  FIG. 3 is a front elevation view of the example building.

  FIG. 4 is a side elevational view of the example building.

  As shown in the drawing, the example building is a prefabricated lightweight steel structure having a vibration suppressing structure, and is provided with a corner support (2) made of concrete at the protruding corner (1). .

  In the construction of the corner support 2, a concrete support 2 having a sectional view L-shape is integrated with or rigidly joined to the corner column 1 erected on the fabric foundation 3, and is installed. A slight gap 5 is provided between the angle inner surface of the concrete support 2 and the opposing outer surface of the corner post 1. [Figure 2]

  Here, the concrete support 2 is reinforced concrete (RC) cast on site, and preferably has a height at least half that of the corner post 1.

  Further, the inter-surface gap 5 between the concrete support 2 and the corner column 1 is set to several tens of millimeters, and a viscoelastic material or a vibration absorbing material 4 is interposed in the gap 5. In this case, the viscoelastic material or the vibration absorbing material 4 is a resin material having rubber elasticity, and is disposed in a rod shape in the longitudinal direction of the gap 5 and is spaced apart in the surface circumferential direction.

  According to this configuration, it is easy to construct and can solve the problem of “runout” which is a disadvantage of the prefabricated structure.

  INDUSTRIAL APPLICATION This invention is useful at the point which developed the new construction method which adds a vibration suppression structure to the prefabricated lightweight steel structure building, and its industrial utility value is high.

It is a top view of an Example building. It is a corner support plane detailed drawing of an Example building. It is a front view elevational view of an example building. It is a side view elevational view of an example building.

Explanation of symbols

1 Corner pillar 2 Concrete support (corner support)
3 Cloth foundation 4 Viscoelastic material or vibration absorbing material 5 Gap 6 Frame frame 8 Wall panel

Claims (2)

In prefabricated lightweight steel structures,
A lightweight steel structure having a vibration suppression structure with a corner support made of concrete in the protruding corner,
A concrete support having a corner surface facing a corner pillar standing on a fabric foundation is attached, and the concrete support is integrated with or rigidly joined to the cloth foundation, A lightweight steel structure having a vibration suppressing structure characterized in that a viscoelastic material or a vibration absorbing material is interposed between the surfaces.   2. The vibration suppression structure according to claim 1, wherein the viscoelastic material or the vibration absorbing material is a resin-based material having rubber elasticity, and is installed in a bar shape in the longitudinal direction of the inter-surface gap and spaced apart in the circumferential direction. A lightweight steel structure building.

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