Japan Architectural Review最新文献_第4页

Review of source models for reproducing and predicting strong motions by empirical Green's function method 利用经验格林函数法重现和预测强运动的源模型综述

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Japan Architectural Review Pub Date : 2024-06-24 DOI: 10.1002/2475-8876.12450

Kazuo Dan

引用次数: 0

Earthquake response prediction of seismically isolated buildings based on response spectrum method considering changes in characteristics of lead rubber bearings due to repeated deformations, part 2: Improvement of prediction accuracy by equivalent damping factor calculation method using effective ductility factor 基于反应谱法的隔震建筑物地震反应预测，考虑重复变形导致的铅橡胶支座特性变化，第 2 部分：利用有效延性因子的等效阻尼系数计算方法提高预测精度

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Japan Architectural Review Pub Date : 2024-06-24 DOI: 10.1002/2475-8876.12452

Masahito Kobayashi, Zeyu Zhu, Yuto Senda

{"title":"Earthquake response prediction of seismically isolated buildings based on response spectrum method considering changes in characteristics of lead rubber bearings due to repeated deformations, part 2: Improvement of prediction accuracy by equivalent damping factor calculation method using effective ductility factor","authors":"Masahito Kobayashi, Zeyu Zhu, Yuto Senda","doi":"10.1002/2475-8876.12452","DOIUrl":"https://doi.org/10.1002/2475-8876.12452","url":null,"abstract":"The response spectrum method (RSM), specified by the Ministry of Construction notification Vol. 2009, is not part of the countermeasure to address the Nankai trough long-period and long-duration ground motions (LPGMs) announced in 2016. Consequently, in this study, an approach was proposed to assess the effect of changes in characteristics due to repeated deformations using the RSM for LPGMs and seismically isolated buildings using lead rubber bearings (LRBs). However, this study identified potential areas for improvement in the calculation of effective damping using the RSM. An effective damping calculation method of the RSM using an effective ductility factor is introduced to enhance the accuracy of the proposed method. The proposed RSM-based method was verified against the methods based on nonlinear time history analysis. The earthquake response prediction results using the proposed method were compared with those of not only the simplified method but also the precise and the quasi-precise methods. The accuracy of earthquake response prediction using the proposed approach is increased by 30%–50% when the effective ductility factor is used to compute the effective damping. Therefore, earthquake response can be predicted using the proposed method, and the accuracy achieved is similar to the nonlinear time history analysis.","PeriodicalId":42793,"journal":{"name":"Japan Architectural Review","volume":"7 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/2475-8876.12452","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141488729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Developing and operating unit-type green parklets for parking lots in urban area—Part 1: Development and experimental study of unit-type green parklets 城市停车场单元式绿地的开发与运营--第 1 部分：单元式绿地的开发与实验研究

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Japan Architectural Review Pub Date : 2024-06-18 DOI: 10.1002/2475-8876.12449

Masahito Takata

{"title":"Developing and operating unit-type green parklets for parking lots in urban area—Part 1: Development and experimental study of unit-type green parklets","authors":"Masahito Takata","doi":"10.1002/2475-8876.12449","DOIUrl":"https://doi.org/10.1002/2475-8876.12449","url":null,"abstract":"Aiming to improve thermal environment for outdoor public spaces, the author had been developing a unit-type green parklet for parking lots that both introduce greenery into cities and produce walkable urban spaces. In this study, the author examined and created a full-size unit-type green parklet, installed it in a parking lot adjacent to sidewalk space next to a bus stop in the traditional urban area, Kyomachi district, of Kumamoto City, and investigated the improvement to summer thermal environment from a field measurement and its usage by people from user survey in summer (from August 30 to September 5, 2022). The results showed that although the parklet shaded with the parasol and greening units, air temperature dropped by only a maximum of 1°C in daytime. Given the characteristics of parking lot as a location, it was confirmed that not only the wind and airflow conditions was blocked and worsened, but reflected solar radiation from the surroundings and generated heat from parked cars degraded air temperature and MRT from the field measurement. Furthermore, it was confirmed to be ensured the visibility of the surroundings when sitting on the parklet bench for the users waiting for a bus from user survey.","PeriodicalId":42793,"journal":{"name":"Japan Architectural Review","volume":"7 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/2475-8876.12449","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141425033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seismic response characteristics of seismically isolated buildings with dead zone mechanism connected to oil damper 采用与油阻尼器相连的死区机构的隔震建筑物的地震响应特性

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Japan Architectural Review Pub Date : 2024-06-17 DOI: 10.1002/2475-8876.12448

Kazuo Yachiune, Akira Suzuki, Yuta Saito, Masaki Tokuno, Masahito Kobayashi

引用次数: 0

Mechanism of shopping difficulties for low-income households caused by the increase in high-income households in central Tokyo: A case study of Azabu and Takanawa districts of Minato-ku 东京市中心高收入家庭增加导致低收入家庭购物困难的机制：港区麻布和高轮地区的个案研究

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Japan Architectural Review Pub Date : 2024-05-14 DOI: 10.1002/2475-8876.12440

Emi Nakamura, Yasushi Asami

引用次数: 0

Progression mechanism of urban food desert and categorization of high-risk blocks through the analysis of changes in food intake demand—A case study of Azabu and Takanawa districts of Minato-ku, Tokyo, where the prices of grocery stores is rising due to redevelopment 通过分析食物摄入需求的变化，分析城市食物沙漠的进展机制和高风险街区的分类--以因再开发而导致杂货店价格上涨的东京港区麻布和高轮地区为例进行研究