Seismic wall mounting structure

Abstract

To provide a seismic wall mounting structure that ensures seismic reinforcement effectiveness. [Solution] An earthquake-resistant wall mounting structure comprising a protruding outer floor portion 101, an earthquake-resistant wall portion consisting of a combination of a frame structure and a wall structure, a mortar layer G and anchor bolts 110, wherein the frame structure is positioned outside the tip portion 101a of the protruding outer floor portion 101 without being fitted into the tip portion 101a, and comprises a beam member 11 whose opposing surface facing the tip portion 101a extends horizontally, and a column member 12 positioned at a predetermined interval in the horizontal direction and extending vertically to be connected to the beam member 11, the mortar layer G is provided to fill the gap between the tip portion 101a and the opposing surface of the beam member 11, the anchor bolts 110 are provided to penetrate the mortar layer G, and the mortar layer G and anchor bolts 110 fix the beam member 11 to the protruding outer floor portion 101.

Description

Technical Field

[0001] The present invention relates to a seismic wall mounting structure composed of a protruding outer floor portion and a seismic wall portion of a building.

Background Art

[0002] Conventionally, on a protruding outer floor portion (for example, a common corridor or a veranda) provided in a building (for example, a medium-sized building or a large-scale building such as an apartment or a hotel), a handrail for use in seismic reinforcement of the building is provided as a seismic wall portion.

[0003] As handrails for use in seismic reinforcement, there are steel seismic handrail structures with cross braces such as X-shaped, V-shaped or K-shaped. However, these steel seismic handrail structures are often difficult to adopt in terms of aesthetics, convenience, site conditions and installation conditions. As a steel seismic handrail structure that solves this problem, for example, the one described in Patent Document 1 is known.

[0004] By the way, in existing buildings, due to construction accuracy during construction or aging changes, the protruding outer floor portion may be wavy in the longitudinal direction, or there may be accuracy defects such as unevenness on the surface (hereinafter, these states are collectively referred to as "unevenness"). On the other hand, the steel seismic handrail structure (seismic wall portion) is manufactured with a smooth and accurate mounting surface on the protruding outer floor portion.

[0005] Therefore, if an attempt is made to directly connect the seismic wall portion to the protruding outer floor portion, a gap will occur between the two and the contact area will decrease, so there is a risk that the expected seismic reinforcement effect cannot be obtained.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] This invention was made in view of the above circumstances, and its objective is to provide a seismic wall mounting structure that can ensure seismic reinforcement even if unevenness occurs. [Means for solving the problem]

[0008] To solve the above problems, the seismic wall mounting structure according to the present invention is: The protruding exterior floor portion of the building, A seismic-resistant wall section consisting of a combination of a frame structure and a wall structure, Mortar layer and anchor bolts, A seismic wall mounting structure equipped with, The aforementioned frame structure is, A beam member is positioned outside the tip of the protruding outer floor portion without being fitted into the tip of the tip portion, and the opposing surface facing the tip portion extends horizontally. It comprises column members arranged at predetermined intervals in the horizontal direction and extending vertically to be connected to the beam members, The wall structure is connected to the column members at both ends in the horizontal direction. The mortar layer is provided to fill the gap between the tip of the protruding outer floor portion and the opposing surface of the beam member, the anchor bolts are provided to penetrate the mortar layer, and the mortar layer and anchor bolts fix the beam member to the protruding outer floor portion.

[0009] In this configuration, the mortar layer is provided to fill the gap between the tip of the protruding outer floor section and the opposing surface of the beam member, and the mortar layer and anchor bolts fix the beam member to the protruding outer floor section, thereby fixing the seismic wall section. Therefore, with this configuration, seismic reinforcement effects can be ensured even if there is unevenness in the protruding outer floor section.

[0010] In the aforementioned seismic wall mounting structure, The frame structure may be configured to further include rib members positioned at the corners between the beam member and the column member. [Effects of the Invention]

[0011] According to this invention, it is possible to provide a seismic wall mounting structure that can ensure seismic reinforcement effects even if unevenness occurs. [Brief explanation of the drawing]

[0012] [Figure 1] This is a front view showing a building equipped with the earthquake-resistant wall mounting structure of the present invention. [Figure 2] This figure shows the earthquake-resistant wall mounting structure of the present invention, where (A) is a front view and (B) is a perspective view. [Figure 3] (A) is a cross-sectional view of AA in Figure 2, and (B) is a cross-sectional view of BB in Figure 2. [Figure 4] This diagram shows the connection between the beam member and the column member of the present invention, where (A) is a perspective view, (B) is a front view, and (C) is a side view. [Modes for carrying out the invention]

[0013] Hereinafter, an embodiment of the seismic wall mounting structure according to the present invention will be described with reference to the drawings.

[0014] As shown in Figures 1 to 4, the seismic wall mounting structure according to the present invention comprises a protruding outer floor portion 101 of a building 100, a steel seismic handrail structure (corresponding to the "seismic wall portion" in the present invention) consisting of a frame structure 1 and a handrail 2 (corresponding to the "wall structure" in the present invention), and a mortar layer G and anchor bolts 110 provided between the protruding outer floor portion 101 and the steel seismic handrail structure.

[0015] As shown in Figure 1, the building 100 consists of multiple floors. The building 100 is a medium-sized or large building, such as an apartment building or a hotel. Each floor of the building 100 is provided with a protruding exterior floor section 101. The protruding exterior floor section 101 is a concrete structure, such as a common corridor or balcony. A steel seismic-resistant handrail structure is connected to the protruding exterior floor section 101 via a mortar layer G and anchor bolts 110.

[0016] As shown in FIGS. 2 to 4, the frame structure 1 includes a beam member 11, a column member 12, and a rib member 13.

[0017] The beam member 11 is disposed outside the tip portion 101a of the protruding outer floor portion 101 without being fitted into the tip portion 101a, and the opposing surface facing the tip portion 101a extends in the horizontal direction. The beam member 11 of the present embodiment is configured in a U-shaped cross section, but its shape can be changed as appropriate. In the present embodiment, the opposing surface on the side opposite to the U-shaped opening is connected to the tip portion 101a via the mortar layer G and the anchor bolt 110.

[0018] The column member 12 extends in the vertical direction and is arranged at a predetermined interval in the horizontal direction. The upper end portion of the column member 12 is directly connected to the lower surface of the upper beam member 11 by a fastening member (for example, a bolt), and the lower end portion of the column member 12 is directly connected to the upper surface of the lower beam member 11 by a fastening member (for example, a bolt). In the present embodiment, the predetermined interval in the horizontal direction corresponds to the width of the room of the building 100.

[0019] The rib member 13 is disposed at the corner of the beam member 11 and the column member 12. The rib member 13 is directly connected to at least one of the beam member 11 and the column member 12 by a fastening member (for example, a bolt). The shape of the rib member 13 is an arch shape in the present embodiment, but it can be changed as appropriate.

[0020] The handrail 2 is directly connected to the column members 12 at both horizontal ends by a fastening member (for example, a bolt). The lower end of the handrail 2 is directly connected to the upper surface of the lower beam member 11 by a fastening member (for example, a bolt).

[0021] In the present embodiment, an iron fence 14 for improving the design of the building 100 is provided on the front side (outside of the building 100) of the handrail 2. However, since the iron fence 14 is not an essential component, it is not necessarily required.

[0022] As shown in Figure 2(A), in the steel seismic-resistant handrail structure, bending stress acts on the beam member 11 between adjacent rib members 13 in the horizontal direction (distance L). Bending stress acts on the column member 12 between the rib member 13 and the handrail 2 (distance H). In the steel seismic-resistant handrail structure of this embodiment, the distance over which stress acts is shortened by the rib members 13 and the handrail 2, so that the bending stress acting on the beam member 11 and the column member 12 can be reduced. In other words, in the steel seismic-resistant handrail structure of this embodiment, the horizontal load-bearing capacity (seismic performance) is improved by the structure formed by combining the frame structure 1 and the handrail 2.

[0023] As shown in Figures 3 and 4, the beam member 11 of the steel seismic-resistant handrail structure is connected to the tip portion 101a of the protruding outer floor portion 101 via a mortar layer G and anchor bolts 110.

[0024] The anchor bolts 110 are installed so as to penetrate the mortar layer G and are used to position the opposing surface of the beam member 11 relative to the tip 101a of the protruding outer floor portion 101, and for temporary fixing until the mortar layer G is formed (hardened). In addition, the anchor bolts 110 resist shear and tensile forces during an earthquake and maintain the fixation of the beam member 11 to the protruding outer floor portion 101.

[0025] Mortar layer G is a layer composed of non-shrink mortar (grouting material). Non-shrink mortar is a material whose main component is cement and which exhibits no (or very little) volume shrinkage during hardening. This non-shrink mortar has a higher compressive strength than ordinary concrete (for example, about three times the compressive strength).

[0026] When forming the mortar layer G, the non-shrink mortar is filled into the gap (in this embodiment, the gap between the tip 101a of the protruding outer floor portion 101 and the opposing surface of the beam member 11) while maintaining high fluidity. Therefore, even if there is unevenness in the tip 101a of the protruding outer floor portion 101, the non-shrink mortar follows its shape and spreads to every corner, effectively filling the gap. As the filled non-shrink mortar hardens, the beam member 11 is fixed to the tip 101a of the protruding outer floor portion 101 across its entire opposing surface via the mortar layer G.

[0027] According to the seismic wall mounting structure of the present invention, the beam member 11 is structurally integrated and fixed to the protruding outer floor portion 101 by the mortar layer G and anchor bolts 110, so that seismic reinforcement effect can be ensured even if there is unevenness at the tip portion 101a of the protruding outer floor portion 101.

[0028] Furthermore, the mortar layer G is not limited to a layer made of non-shrink mortar. For example, the mortar layer G may be a layer made of mortar other than non-shrink mortar (mortar that shrinks when hardened). Even when using mortar that shrinks when hardened, the structural integration and fixing of the beam member 11 to the protruding outer floor portion 101 is performed together with the anchor bolts 110, so that the seismic reinforcement effect can be ensured even if there is unevenness at the tip 101a of the protruding outer floor portion 101.

[0029] Although embodiments of the seismic wall mounting structure according to the present invention have been described above, the present invention is not limited to the above embodiments.

[0030] The seismic wall mounting structure according to the present invention comprises a protruding outer floor portion of a building, a seismic wall portion consisting of a combination of a frame structure and a wall structure, a mortar layer and anchor bolts, wherein the frame structure is positioned outside the tip of the protruding outer floor portion without being fitted into the tip of the tip portion, and comprises a beam member whose opposing surface facing the tip portion extends horizontally, and column members positioned at predetermined intervals in the horizontal direction and extending vertically to be connected to the beam member, the wall structure has both ends in the horizontal direction connected to the column member, the mortar layer is provided to fill the gap between the tip of the protruding outer floor portion and the opposing surface of the beam member, and the anchor bolts are provided to penetrate the mortar layer, and the mortar layer and anchor bolts can be appropriately modified in other configurations as long as they are configured to fix the beam member to the protruding outer floor portion.

[0031] For example, the wall structure of the present invention is not limited to handrail 2. The wall structure of the present invention may be, for example, a steel earthquake-resistant handrail with bracing such as X-shaped, V-shaped, or K-shaped, or a steel earthquake-resistant wall such as a parapet. [Explanation of Symbols]

[0032] 1. Frame structure 2 Handrails 11 Beam members 12 Column members 13 Rib members 14 Iron fence 100 buildings 101 Projecting outer floor section 101a Tip 110 Anchor bolts G Mortar layer

Claims

1. The protruding exterior floor portion of the building, A seismic-resistant wall section consisting of a combination of a frame structure and a wall structure, Mortar layer and anchor bolts, A seismic wall mounting structure equipped with, The aforementioned frame structure is, A beam member is positioned outside the tip of the protruding outer floor portion without being fitted into the tip of the tip portion, and the opposing surface facing the tip portion extends horizontally. It comprises column members arranged at predetermined intervals in the horizontal direction and extending vertically to be connected to the beam members, The wall structure is connected to the column members at both ends in the horizontal direction. The mortar layer is provided to fill the gap between the tip of the protruding outer floor portion and the opposing surface of the beam member, the anchor bolts are provided to penetrate the mortar layer, and the mortar layer and anchor bolts fix the beam member to the protruding outer floor portion. A seismic wall mounting structure characterized by the following features.

2. The frame structure further comprises rib members positioned at the corners between the beam member and the column member. The seismic wall mounting structure according to feature 1.

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