接合部性能を考慮した木造住宅の構造性能評価に関する実験的研究

考虑节点性能的木屋结构性能评价试验研究

• 批准号: 07J52983
• 负责人: 佐藤 弘美
• 金额: $ 0.58万
• 依托单位: Tokyo Metropolitan University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07J52983/
• 关键词: 既存木造住宅; 接合部; 地震被害調査; 実物大実験; 地震応答解析; 狭小間口

本研究は,木造密集市街地などの都市部の既存木造住宅の構造性能を定量的に評価することを目的とし,都市部の既存木造住宅の実態調査結果の検討,地震被害調査,構造要素の実物大実験等を行った.研究の実施内容は以下のとおりである.(1)都市部の既存木造住宅の実態把握するため,東京都千代田区神田地区を対象に木造住宅の特徴について検討した.狭小間口の店舗併用型木造住宅が多く,この特徴を持つ木造住宅を対象に耐震診断と常時微動測定,当該地区の地盤を考慮した地震応答解析を実施し,地震災害に対する構造性能の把握を行った.解析対象とした4棟の木造住宅(築40から70年)のうち2003年に改修を行った木造住宅は,耐震診断結果,地震応答解析結果ともに安全側の結果が得られた.(2)都市部の木造住宅の地震被害の特徴を把握するために地震被害調査を行った.本研究では,2007年能登半島地震における被災地を対象とし,木造住宅の被害が多く認められた輪島市と七尾市にて悉皆調査と詳細調査を行った.特に,輪島市の木造住宅1棟を対象に,被害部位の詳細調査や常時微動測定,2007年地能登半島地震の観測波を用いた地震応答解析を行った.(3)実態調査,被害調査を踏まえて,木造接合部の実物大実験を実施した.狭小間口木造住宅において被害が多く生じていた柱-横架材接合部4種を対象とし,各3体の合計12体を用いた.破壊が生じる変形角まで加力を行い,耐力,破壊性状等の把握を行った.木造密集市街地などの狭小間口既存木造住宅は,構造性能において問題を抱えている場合が多い.本研究では,実態調査から地震被害調査まで実施し,さらにこれらの木造住宅において破壊要因として重要である接合部要素の実物大実験を実施した.実際の地震被害を踏まえた上で,接合部の構造性能を体系的に把握し評価することは,今後既存木造住宅の耐震性能について検討する上で非常に重要である.

This study aims to quantitatively evaluate the structural performance of existing wooden houses in urban areas with dense wooden buildings, to investigate the results of physical investigation of existing wooden houses in urban areas, to investigate earthquake damage, and to investigate the physical characteristics of structural elements. The content of the study is as follows. (1)The characteristics of existing wooden houses in Chiyoda-ku, Kanda district, Tokyo are examined. The characteristics of wooden houses with narrow openings and shop buildings are different, and the seismic diagnosis and frequent micro-motion measurement of wooden houses are carried out. When the earthquake response analysis is carried out, the structural performance of earthquake disasters is grasped. The analysis of the four wooden houses (built 40 years ago and 70 years ago) was carried out in 2003, and the results of earthquake diagnosis and earthquake analysis were obtained. (2)The characteristics of earthquake damage in wooden houses of the Ministry of Urban Affairs were grasped. In this study, we conducted a detailed investigation of the damage caused by the 2007 Noto Peninsula earthquake in Wakushima City and Nanao City. In particular, a wooden residential building in Wakashima City was targeted, and detailed investigation of the damaged parts and measurement of frequent micromotion were carried out. The seismic response analysis of the earthquake in the 2007 Geoden Peninsula was carried out. (3)Investigation of the situation, investigation of the damage, investigation of the wood joints and the implementation of the material. There are 4 kinds of objects in the joint of column and cross frame, each of which has 3 objects and 12 objects in total. To grasp the characteristics of endurance, endurance, and breaking. There are many problems in the structural performance of existing wooden houses. This study is based on the investigation of earthquake victims, and the investigation of the important factors of joint parts. In the future, it is very important to evaluate the seismic resistance of existing wooden houses.

项目成果

Seismic Diagnosis and Structural Performance Evaluation of Existing Timber Houses in Tokyo Part 4 Analysis of Urban Houses in Kanda

东京现有木结构房屋的地震诊断和结构性能评估第 4 部分神田城市房屋分析

• 发表时间: 2007
• 期刊: Proceedings of Building Stock Activation 2007
• 作者: Takahashi;T.;Ikeda;K;Hasegawa;T;Yoshihiro Hasegawa;宮本琢也・前川佳一・矢寺顕行・加護野忠男;宮本琢也;宮本琢也;宮本琢也・前川佳一;Hiromi Sato
• 通讯作者: Hiromi Sato