JP3697493B2

JP3697493B2 - Seismic reinforcement method for statues

Info

Publication number: JP3697493B2
Application number: JP09355997A
Authority: JP
Inventors: 章二林; 山田　　信一
Original assignee: Shimizu Corp
Current assignee: Shimizu Corp
Priority date: 1997-04-11
Filing date: 1997-04-11
Publication date: 2005-09-21
Anticipated expiration: 2017-04-11
Also published as: JPH10292635A

Description

【０００１】
【発明の属する技術分野】
本発明は、内部が中空になっている像の耐震補強方法の技術分野に属する。
【０００２】
【従来の技術】
耐震改修促進法が制定されて既存建物の耐震診断や耐震改修の検討が進められ、歴史的な建築物の保存計画も併せて進められている。歴史的な建築物の保存において、建物全体の免震化が可能ならば装飾類の保存もあまり手を加えることなく可能であるが、全ての建物を免震化することは経済的、時間的に難しいのが一般的である。耐震補強された建物で問題になりやすい、あるいは建物以上に早急に対処すべき耐震改修は、第３者障害を起こす落下物であり、例えば建物内部に飾っている彫像類が考えられる。具体的には、室内の壁面や高所に取り付けられている石膏などでできている像である。
【０００３】
図３は、従来の像の耐震補強方法を示す断面図である。内部が中空になっている像１は床台２上に載置され、像１の分割部分の裏側に開口部を設け、壁３側から補強材４、５を貫通させ、像１の内部で下部の補強材５上に支柱６を立設し、支柱６と上部の補強材４を固定するとともに、支柱６に梁材７、８を水平方向に取り付け、像１を支持させるようにしている。
【０００４】
【発明が解決しようとする課題】
しかしながら、上記従来の耐震補強方法においては、外見上目立たない中空像１の裏面に補強材４、５を貫通させるため、外見上見にくいとはいえ歴史的に価値のあるものを損傷することは問題があるし、また、中空像１が脆性的な材料で製作されている場合には、衝撃で壊れないという保証は十分ではなかった。また、建物の壁３側で支持させるため、建物の大がかりな改修工事が必要であり、さらに、像１の内部に大がかりな補強を行うため、実際には現場で補強することは不可能であり、また、像自体を加工する必要があることから像を取り外し別途工場で補強を行う必要があった。
【０００５】
本発明は、上記問題を解決するものであって、内部が中空になっている像に損傷を与えることなく現場にて確実に補強することができる耐震補強方法を提供することを目的とする。
【０００６】
【課題を解決するための手段】
上記目的を達成するために、本発明の像の耐震補強方法は、内部が中空になっている像の内部に、支持部から支柱を像の内部形状に沿って立設し、像の内部に発泡ウレタン等の充填材を充填し、像と支柱を充填材により一体化したことを特徴とする。
また、本発明の像の耐震補強方法は、内部が中空になっている像の内部に、台座から支柱を立設し、前記支柱に複数の梁材を水平方向に固定し、最下部の梁材は鉄筋で前記台座に支持し、像の内部下方に繊維補強コンクリートを充填したことを特徴とする。
以上
【０００７】
【発明の実施の形態】
以下、本発明の実施の形態を図面を参照しつつ説明する。図１は、本発明の像の耐震補強方法の１実施形態を示し、図１（Ａ）は建物内部の概観図、図１（Ｂ）は断面図である。
【０００８】
図１（Ａ）において、教会等の建物壁面３の高所の張り出し部３ａには像１が設置されている。このような像１は、石膏などでできていて内部が中空となった像が多い。この像１の耐震補強を行う場合には、図１（Ｂ）に示すように、壁３の張り出し部３ａに固定ベース１０をボルト１１により取り付け、支持部である固定ベース１０から支柱１２を像１の内部の形状に沿って立設し、像１の内部に発泡ウレタン等の充填材料１３を充填し、像１と支柱１２を充填材料１３により一体化させている。これにより、大きな地震慣性力が作用しても像を壊すような応力集中を生じさせないようにすることができる。
【０００９】
図２は、本発明の像の耐震補強方法の他の実施形態を示す断面図である。本実施形態は比較的大型の像に適用する例である。像１は、床２上の台座１５上に載置し、支持部である床２から像１の内部に向けて多数のスタッド１６ａを有する鉄骨等の支柱１６を立設し、支柱１６に複数の梁材１７を水平方向に取り付け、最下部の梁材１７は鉄筋１８により台座１５に支持させるようにし、像１の内部下方にスチールファイバーコンクリート等の繊維補強コンクリート１９を充填する。
【００１０】
【発明の効果】
以上の説明から明らかなように、本発明によれば、内部が中空になっている像に損傷を与えることなく現場にて確実に補強することができる。また、建物の改修工事が不要であるとともに、万一像の分割部分が損傷を受けても像内部の支柱により脱落等の恐れがない。特に、室内の壁面や高所に取り付けられている石膏などでできている内部が中空となった像の耐震補強に有効である。
【図面の簡単な説明】
【図１】本発明の像の耐震補強方法の１実施形態を示し、図１（Ａ）は建物内部の概観図、図１（Ｂ）は断面図である。
【図２】本発明の像の耐震補強方法の他の実施形態を示す断面図である。
【図３】従来の像の耐震補強方法を示す断面図である。
【符号の説明】
１…像、２、１０…支持部、１２、１６…支柱、１３…充填材料、１７…梁材１９…繊維補強コンクリート[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to the technical field of a seismic reinforcement method for an image having a hollow inside.
[0002]
[Prior art]
The Act on Promotion of Earthquake-Rehabilitation Improvement has been enacted, and seismic diagnosis and retrofitting of existing buildings are underway, and historical building preservation plans are also being promoted. In the preservation of historic buildings, if the entire building can be seismically isolated, the decoration can be preserved without much modification, but it is economical and time-consuming to make all buildings seismic isolated. It is generally difficult. Seismic retrofits that are prone to problems in buildings that are seismically reinforced, or that should be dealt with more quickly than buildings, are fallen objects that cause third-party obstacles, for example, statues decorated inside the building. Specifically, it is an image made of plaster or the like attached to an indoor wall surface or high place.
[0003]
FIG. 3 is a cross-sectional view showing a conventional method for seismic reinforcement of an image. The hollow image 1 is placed on the floor 2, an opening is provided on the back side of the divided portion of the image 1, and the reinforcing members 4 and 5 are penetrated from the wall 3 side. A support column 6 is erected on the lower reinforcement member 5 to fix the support column 6 and the upper reinforcement member 4, and beam members 7 and 8 are attached to the support column 6 in the horizontal direction to support the image 1. .
[0004]
[Problems to be solved by the invention]
However, in the conventional seismic reinforcement method, since the reinforcing members 4 and 5 are penetrated through the back surface of the hollow image 1 which is not visually apparent, it is difficult to damage what is historically valuable although it is difficult to see. In addition, when the hollow image 1 is made of a brittle material, the guarantee that the hollow image 1 is not broken by an impact is not sufficient. In addition, since it is supported on the wall 3 side of the building, a large-scale renovation work is required for the building. Further, since the interior of the image 1 is greatly reinforced, it is actually impossible to reinforce on the site. Also, since the image itself needs to be processed, it was necessary to remove the image and reinforce it separately at the factory.
[0005]
The present invention solves the above-described problems, and an object of the present invention is to provide a seismic reinforcement method that can surely reinforce on-site without damaging an image having a hollow inside.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the method for seismic reinforcement of an image of the present invention, a support column is erected from the support portion along the internal shape of the image inside the hollow image, and the image is inside the image. It is characterized by filling with a filler such as urethane foam , and integrating the image and the column with the filler.
Also, the method of seismic reinforcement of an image of the present invention is a method in which a pillar is erected from a pedestal inside an image that is hollow inside, and a plurality of beam members are fixed in the horizontal direction on the pillar, The material is supported on the pedestal by reinforcing bars, and fiber-reinforced concrete is filled in the lower part of the inside of the image.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows one embodiment of the method for seismic reinforcement of an image of the present invention, FIG. 1 (A) is a schematic view of the inside of a building, and FIG. 1 (B) is a sectional view.
[0008]
In FIG. 1 (A), the image 1 is installed in the overhang | projection part 3a of the high place of the building wall surfaces 3, such as a church. Such an image 1 is often made of gypsum or the like and has a hollow inside. When the seismic reinforcement of this image 1 is performed, as shown in FIG. 1 (B), a fixed base 10 is attached to the projecting portion 3a of the wall 3 with a bolt 11, and the column 12 is imaged from the fixed base 10 which is a support portion. 1, the image 1 is filled with a filling material 13 such as urethane foam, and the image 1 and the column 12 are integrated by the filling material 13. Thereby, even if a large earthquake inertia force acts, it is possible to prevent the stress concentration from destroying the image.
[0009]
FIG. 2 is a cross-sectional view showing another embodiment of the image seismic reinforcement method of the present invention. This embodiment is an example applied to a relatively large image. The image 1 is placed on a pedestal 15 on the floor 2, and a pillar 16 such as a steel frame having a large number of studs 16 a is erected from the floor 2 as a support portion toward the inside of the image 1. The lowermost beam member 17 is supported on the base 15 by a reinforcing bar 18, and a fiber reinforced concrete 19 such as steel fiber concrete is filled in the lower part of the image 1.
[0010]
【The invention's effect】
As is apparent from the above description, according to the present invention, it is possible to reliably reinforce the image in which the inside is hollow without damaging the image. In addition, there is no need for renovation of the building, and even if the divided part of the image is damaged, there is no fear of dropping off due to the pillar inside the image. In particular, it is effective for seismic reinforcement of images in which the interior made of plaster or the like attached to an indoor wall surface or high place is hollow.
[Brief description of the drawings]
1A and 1B show an embodiment of a method for seismic reinforcement of an image of the present invention, FIG. 1A is an overview of the interior of a building, and FIG. 1B is a cross-sectional view.
FIG. 2 is a cross-sectional view showing another embodiment of the method for seismic reinforcement of an image of the present invention.
FIG. 3 is a cross-sectional view showing a conventional method for seismic reinforcement of an image.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Image 2, 10 ... Support part, 12, 16 ... Support | pillar, 13 ... Filling material, 17 ... Beam material 19 ... Fiber reinforced concrete

Claims

Inside the image that is hollow inside, a support column is erected from the support section along the internal shape of the image, and the image is filled with a filler such as urethane foam , and the image and the support column are integrated with the filler. Seismic reinforcement method for images characterized by

A pillar is erected from a pedestal inside an image that is hollow inside, and a plurality of beam members are fixed to the column in the horizontal direction, and the lowermost beam member is supported on the pedestal with reinforcing bars, A method for seismic reinforcement of an image, characterized by filling fiber reinforced concrete below the interior.