JP2006257654A - Lattice-shaped earthquake-resisting wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lattice-shaped earthquake-resisting wall capable of enhancing earthquake resistance of a structure, obtaining translucency, and completely partitioning an adjacent space. <P>SOLUTION: Characteristically, this lattice-shaped earthquake-resisting wall comprises: a rectangular peripheral framework steel frame 1 which is built in along a column and a beam, constituting the inside of a column-beam frame; brace members 2 which are composed of a plurality of flat bars arranged in a lattice shape inside the steel frame 1 in the state of directing a plate surface toward the inside of plane of structure of the peripheral framework steel frame, and the state of being inclined with respect to a horizontal direction; and an interposition member 3 with translucency, which is built into the lattice of the brace member 2 so as to function as a buckling stiffener for the brace member 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lattice-shaped seismic wall that is incorporated in a column beam frame to improve seismic resistance and has partitioning and translucency.

  In general, in various structures such as steel structures, reinforced concrete structures, and reinforced steel concrete structures, earthquake-resistant walls incorporated in column beam frames are known as a kind of structural elements for improving the earthquake resistance of the structures.

  By the way, when such a seismic wall is a reinforced concrete structure formed by placing concrete over the entire surface of the column beam frame, there arises a problem that the translucency of one space is impaired by the seismic wall. . In addition, in order to construct the above-mentioned earthquake-resistant wall, there is a problem that much labor is required for the bar arrangement work, the formwork work, the on-site concrete placing work or the curing work thereof.

Therefore, for example, as can be seen in Patent Document 1 below, a lattice-type brace has been proposed in which a plurality of steel pipe members are arranged in an oblique lattice shape within a construction surface surrounded by pillars and beams of a building.
According to this lattice-type brace, there is an advantage that the construction is easy and the translucency through the lattice space formed between the steel pipe members can be obtained.
JP-A-11-152908

  However, in the conventional grid-type brace, if the seismic resistance is increased, the diameter of the steel pipe member constituting the brace is inevitably increased, so that sufficient translucency can still be obtained. In addition, since the steel pipe member is exposed, there is a disadvantage that it is inferior in design.

  In addition, since the two spaces sandwiching the lattice braces are mutually breathable, it is necessary to always air-condition the two spaces even when one space is not used. There is a drawback that the air conditioning load becomes large and the economy is inferior.

  The present invention has been made in view of such circumstances, and can improve the seismic resistance of the structure, can obtain translucency, and can completely partition the adjacent space, so that the lattice-like seismic resistance can be obtained. The challenge is to provide walls.

  In order to solve the above-mentioned problems, a grid-like seismic wall according to the present invention as set forth in claim 1 is a rectangular peripheral frame steel frame incorporated along a column and a beam constituting a column beam structure, A brace member made up of a plurality of flat bars arranged in a lattice shape in a state of being inclined with respect to the horizontal while the plate surface is directed into the frame surface of the peripheral frame steel frame in the frame steel frame, and the plate surface of these brace members It is incorporated in a defined grid and includes an interposed member that functions as a buckling stiffener for the brace member and has translucency.

  Here, the invention according to claim 2 is characterized in that at least a part of the plurality of flat bars according to claim 1 is made of extra mild steel.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the interposed member is a rectangular parallelepiped glass block, and between the glass block and the flat bar, A buffer elastic material is interposed.

Here, the said glass block means the solid or hollow block by which the 6 surfaces which comprise a rectangular parallelepiped were comprised with thick glass.
Furthermore, the invention described in claim 4 is the invention described in claim 3, characterized in that a plurality of the glass blocks are incorporated in each of the lattices.

  According to the lattice-shaped earthquake-resistant wall according to any one of claims 1 to 4, as the lattice-shaped brace member, a flat bar disposed with the plate surface facing the composition surface is used, and the plate surface of these brace members As a result of incorporating an interstitial member having translucency into the lattice defined by the above, since only the thickness dimension at the side edge of the flat bar appears between the intervening members in a lattice shape, it is excellent. Design properties can be obtained.

  In addition, when an earthquake occurs, horizontal force acts on the surrounding frame steel frame of the lattice-shaped seismic wall incorporated in the frame of the structure via columns and beams. As a result, a compressive force acts on one inclined side brace member in the peripheral frame steel frame, and a tensile force acts on the other inclined side brace member intersecting these members.

  At this time, although the flat bar is used as the brace member, since the interposition member is incorporated in the lattice defined by the plate surface of the brace member, the interposition member is not connected to the brace. By restraining the plate surface of the member to prevent deformation in the out-of-plane direction, it functions as a buckling stiffener. As a result, it is possible to improve the compressive strength in the brace member on which the compressive force acts, and obtain sufficient earthquake resistance.

  In addition, since both the spaces sandwiching the lattice-shaped seismic walls are completely partitioned by the interposition member, the air conditioning load in each space can be reduced, and the interposition member can transmit light. Therefore, desired brightness through natural light can be obtained.

  Here, as in the invention described in claim 2, if at least a part of the plurality of flat bars is made of ultra-soft steel, in cooperation with the buckling stiffening function by the interposed member at the time of an earthquake, A stable hysteresis attenuation effect can be obtained, which is preferable.

  Further, as the interposition member, various forms of members can be used as long as they function as a buckling stiffener for the brace member and have translucency. Thus, a general-purpose glass block is suitable. In this case, a shock-absorbing elastic material is interposed between the glass block and the flat bar, so that it is possible to prevent an impact from acting directly on the glass block during an earthquake.

  In addition, when a glass block is used as the interposition member, higher strength can be obtained by incorporating a plurality of glass blocks into each of the lattices as in the invention described in claim 4. Therefore, the buckling stiffening function can be improved.

FIG. 1 and FIG. 2 show one embodiment of the lattice-shaped seismic wall of the present invention, and reference numeral 1 in the drawing is a peripheral frame steel frame assembled in a rectangular shape by a steel frame such as H-shaped steel.
The peripheral frame steel frame 1 is disposed along left and right columns and upper and lower beams of a structure (not shown), and a plurality of brace members 2 are disposed in the peripheral frame steel frame 1. Yes.

  The brace member 2 is configured such that a flat bar is disposed with its plate surface facing the surface of the peripheral frame steel frame 1, and is disposed in a lattice shape in a state inclined with respect to the horizontal. These brace members 2 are rigidly joined to each other at their intersections, and both ends are rigidly joined to the peripheral frame steel frame 1. Moreover, some or all of the plurality of brace members 2 are configured by a flat bar made of ultra-soft steel.

And, in a lattice formed by the plate surfaces of these brace members 2, a translucent rectangular parallelepiped glass block (intervening member) 3 is incorporated with its peripheral surface facing the plate surface of the brace member 2. It is.
The glass block 3 is a hollow member whose six surfaces are made of thick glass. For example, four pieces each having a size of 300 mm × 300 mm × thickness 95 mm are incorporated in each lattice. These four glass blocks 3 have a mortar joint 4 formed between adjacent ones, and a buffer elastic body 5 made of a rubber material or the like interposed between the brace members on the outer periphery. It has been turned.

  According to the lattice-shaped earthquake-resistant wall having the above-described configuration, as shown in FIG. 1, as the lattice-shaped brace member 2, these brace members are used by using a flat bar arranged with the plate surface facing in the composition plane. Since the glass block 3 having translucency is incorporated in the grid 2, only the thickness dimension at the side edge of the flat bar is grid-like between many glass blocks 3 constituting almost the entire surface. Therefore, excellent design properties can be obtained.

In addition, the brace member 2 and the glass block 3 completely separate both spaces sandwiching the lattice-shaped earthquake-resistant wall therebetween, so that the air conditioning load in each space can be reduced.
In addition, since the glass block 3 has translucency, desired brightness through natural light can be obtained.

  Further, when an earthquake occurs, a horizontal force acts on the peripheral frame steel frame 1 via columns and beams, and as a result, a compressive force acts on one of the brace members 2 on the inclined side in the peripheral frame steel frame 1. A tensile force acts on the other inclined side brace member 2 intersecting with these members. For the brace member 2 on which a compressive force acts, the glass block 3 incorporated in the lattice restrains the plate surface of the brace member 2 to prevent the deformation in the out-of-plane direction, thereby buckling the stiffener. Therefore, it is possible to improve the compressive yield strength of the brace member 2 and obtain sufficient earthquake resistance.

  At this time, since at least a part of the plurality of brace members 2 is made of ultra-soft steel, a stable hysteresis damping effect can be obtained by cooperation with the buckling stiffening function by the glass block 3. Can do.

  Moreover, since the four glass blocks 3 are incorporated in each lattice, high strength can be obtained, so that the buckling stiffening function can be improved, and the glass block 3 and the brace member 2 Since the shock absorbing elastic material 5 is interposed between the two, a direct impact can be prevented from acting on the glass block 3 during an earthquake.

It is a front view which shows one Embodiment of the lattice-shaped earthquake-resistant wall of this invention. It is a front view which shows the glass block integrated in each grating | lattice of FIG.

Explanation of symbols

1 Peripheral frame steel frame 2 Brace member 3 Glass block (intervening member)
5 Buffer elastic body

Claims (4)

  A rectangular peripheral frame steel frame built along the columns and beams that make up the column beam structure, and a state in which the plate surface is oriented in the frame surface of the peripheral frame steel frame and inclined with respect to the horizontal. The brace member is composed of a plurality of flat bars arranged in a grid shape and is incorporated in a grid defined by the plate surfaces of these brace members and functions as a buckling stiffener for the brace member. A lattice-shaped earthquake-resistant wall comprising an interstitial member having optical properties.   The lattice-shaped earthquake resistant wall according to claim 1, wherein at least a part of the plurality of flat bars is made of extremely mild steel.   The lattice-like seismic resistance according to claim 1 or 2, wherein the interposed member is a glass block, and a buffer elastic material is interposed between the glass block and the flat bar. wall.   The lattice-shaped earthquake resistant wall according to any one of claims 1 to 3, wherein a plurality of rectangular parallelepiped glass blocks are incorporated in each lattice.

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