Seismic wall mounting structure

Abstract

To provide a seismic wall mounting structure that ensures seismic reinforcement effectiveness. [Solution] A seismic wall mounting structure comprising a protruding outer floor portion 101 of a building, a seismic wall portion consisting of a combination of a frame structure and a wall structure, a mortar layer G and anchor bolts, wherein the frame structure comprises connecting members 10 arranged at predetermined intervals in the horizontal direction and connected in a fitted state to the protruding outer floor portion, beam members 11 arranged between adjacent connecting members 10 and connected to the lower part of the connecting members 10, and column members 12 arranged at predetermined intervals in the horizontal direction, extending in the vertical direction and connected to the connecting members 10, the wall structure having both ends in the horizontal direction connected to the column members 12, the mortar layer G provided to fill the space between the protruding outer floor portion 101 and the seismic wall portion, the anchor bolts provided to penetrate the mortar layer G, and the mortar layer G and anchor bolts fix the seismic wall portion 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, handrails for seismic reinforcement of a building are provided as seismic wall portions on a protruding outer floor portion (for example, a shared corridor or a veranda) provided in a building (for example, a medium-sized or large-sized building such as an apartment or a hotel).

[0003] As handrails for seismic reinforcement, there are X-shaped, V-shaped, or K-shaped cross-braced steel seismic handrail structures. 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 over 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) has a smooth and accurately manufactured mounting surface to 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, Connecting members are arranged at predetermined intervals in the horizontal direction and connected to the protruding outer floor portion in a fitted state, A beam member is positioned between adjacent connecting members and connected to the lower part of the connecting members, It comprises column members arranged at predetermined intervals in the horizontal direction and extending vertically to be connected to the connecting member or the beam member, 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 protruding outer floor portion and the seismic wall portion, the anchor bolts are provided to penetrate the mortar layer, and the mortar layer and the anchor bolts fix the seismic wall portion to the protruding outer floor portion.

[0009] In this configuration, the mortar layer is provided to fill the gap between the protruding outer floor section and the seismic wall section, and the mortar layer and anchor bolts fix the seismic wall section to the protruding outer floor 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 aforementioned connecting member is A main body having a U-shaped portion that is fitted into the protruding outer floor portion with a predetermined gap, The main body portion is provided on the lower surface and comprises a horizontal portion connected to the beam member, The mortar layer is provided to fill the gap between the protruding outer floor portion and the main body portion, and can be configured to fix the connecting member to the protruding outer floor portion together with the anchor bolts. [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 is a front view showing the earthquake-resistant wall mounting structure of the present invention. [Figure 3] A is a cross-sectional view AA in Figure 2, and B is a cross-sectional view BB in Figure 2. [Figure 4] The connecting member of the present invention is shown as follows: 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 attached 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 (Figure 4C) and anchor bolts (Figure 4C) provided between the protruding outer floor portion 101 and the steel seismic handrail structure.

[0015] As shown in Fig. 1, the building 100 is composed of multiple floors. The building 100 is, for example, a medium-sized or large-sized building such as an apartment or a hotel. On each floor of the building 100, a protruding outer floor part 101 is provided. The protruding outer floor part 101 is a concrete structure and is, for example, a common corridor or a veranda. A steel seismic handrail structure is connected to the protruding outer floor part 101 via a mortar layer G and anchor bolts.

[0016] As shown in Figs. 2 to 4, the frame structure 1 includes a connecting member 10, a beam member 11, a column member 12, and a rib member 13.

[0017] The connecting members 10 are arranged at a predetermined interval in the horizontal direction and are connected to the tip 101a of the protruding outer floor part 101 via the mortar layer G and anchor bolts (Fig. 4C). In the drawings other than Fig. 4C, the illustration of the mortar layer G is omitted.

[0018] The anchor bolts are used for positioning the connecting member 10 with respect to the protruding outer floor part 101 and for temporary fixing until the mortar layer G is formed (hardened). Also, the anchor bolts resist the shear force and tensile force during an earthquake and maintain the fixing of the connecting member 10 to the protruding outer floor part 101. That is, in the present embodiment, the mortar layer G and the anchor bolts integrally and fixedly structure the connecting member 10 with respect to the protruding outer floor part 101. [[ID=I4]]

[0019] The beam member 11 extends in the horizontal direction and is arranged between adjacent connecting members 10. The beam member 11 is directly connected to the lower part of the connecting member 10 by a fastening member (for example, a bolt). Also, the beam member 11 may be directly connected to the protruding outer floor part 101 by a fastening member (for example, an anchor bolt).

[0020] The column member 12 extends in the vertical direction and is arranged at a predetermined interval in the horizontal direction. The upper end and the lower end of the column member 12 are directly connected to the connecting member 10 by a fastening member (for example, a bolt). Note that at least one of the upper end and the lower end of the column member 12 may be connected to the beam member 11.

[0021] The rib member 13 is positioned at the corner between 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 fastening members (e.g., bolts). In this embodiment, the shape of the rib member 13 is arch-shaped, but it can be changed as appropriate.

[0022] The handrail 2 is directly connected to the column member 12 at both horizontal ends by fastening members (e.g., bolts). The lower end of the handrail 2 may be directly connected to the protruding outer floor portion 101 by fastening members (e.g., anchor bolts).

[0023] As shown in Figure 2, 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.

[0024] As shown in Figure 4, the connecting member 10 consists of a main body portion 10a and a horizontal portion 10b. The main body portion 10a has a U-shaped portion that fits into the tip portion 101a of the protruding outer floor portion 101 with a predetermined gap. The horizontal portion 10b is provided on the lower surface of the main body portion 10a (for example, welded). Both horizontal ends of the horizontal portion 10b are directly connected to the beam member 11 by fastening members (for example, bolts).

[0025] A mortar layer G is provided in the gap between the main body portion 10a of the connecting member 10 and the tip portion 101a of the protruding outer floor portion 101. The mortar layer G fills the gap and, together with the anchor bolts, fixes the connecting member 10 to the protruding outer floor portion 101.

[0026] 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).

[0027] When forming the mortar layer G, the non-shrink mortar is filled into the gap (the gap between the connecting member 10 and the protruding outer floor portion 101) while maintaining high fluidity. Therefore, even if there is unevenness in the protruding outer floor portion 101, the non-shrink mortar conforms to its shape and reaches every corner, effectively filling the gap. As the filled non-shrink mortar hardens, the connecting member 10 is fixed to the protruding outer floor portion 101 across its entire surface via the mortar layer G.

[0028] According to the seismic wall mounting structure of the present invention, the mortar layer G and anchor bolts structurally integrate and fix the connecting member 10 to the protruding outer floor portion 101, so that seismic reinforcement effect can be ensured even if there is unevenness in the protruding outer floor portion 101.

[0029] 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 connecting member 10 to the protruding outer floor portion 101 is performed together with the anchor bolts, so that the seismic reinforcement effect can be ensured even if there is unevenness in the protruding outer floor portion 101.

[0030] 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.

[0031] 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 comprises connecting members arranged at predetermined intervals in the horizontal direction and connected to the protruding outer floor portion in a fitted state, beam members arranged between adjacent connecting members and connected to the lower part of the connecting members, and column members arranged at predetermined intervals in the horizontal direction, extending vertically and connected to the connecting members or beam members, the wall structure has both ends in the horizontal direction connected to the column members, the mortar layer is provided to fill the gap between the protruding outer floor portion and the seismic wall portion, and the anchor bolts are provided to penetrate the mortar layer, and the configuration of the mortar layer and anchor bolts can be appropriately changed as long as the seismic wall portion is fixed to the protruding outer floor portion.

[0032] 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]

[0033] 1. Frame structure 2 Handrails 10 Connecting members 10a Main body 10b Horizontal part 11 Beam members 12 Column members 13 Rib members 100 buildings 101 Projecting outer floor section 101a Tip 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, Connecting members are arranged at predetermined intervals in the horizontal direction and connected to the protruding outer floor portion in a fitted state, A beam member is positioned between adjacent connecting members and connected to the lower part of the connecting members, It comprises column members arranged at predetermined intervals in the horizontal direction and extending vertically to be connected to the connecting member or the beam member, 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 protruding outer floor portion and the seismic wall portion, the anchor bolts are provided to penetrate the mortar layer, and the mortar layer and the anchor bolts fix the seismic wall portion to the protruding outer floor portion. A seismic wall mounting structure characterized by the following features.

2. The aforementioned connecting member is A main body having a U-shaped portion that is fitted into the protruding outer floor portion with a predetermined gap, The main body portion is provided on the lower surface and comprises a horizontal portion connected to the beam member, The mortar layer is provided to fill the gap between the protruding outer floor portion and the main body portion, and together with the anchor bolts, it fixes the connecting member to the protruding outer floor portion. The seismic wall mounting structure according to feature 1.

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