Faculty Profiles - NAGAI Takuo

Papers - NAGAI Takuo

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Study on mechanical properties of reed and bending-active characteristics of reed-bundled column Reviewed

Taku Nagai

Proceedings of the IASS 2022 Symposium affiliated with APCS 2022 conference, Innovation-Sustainability-Legacy 2022.9

純曲げを受ける丸竹の力学的特性に関する考察

永井拓生

第16回コロキウム構造形態の創生と解析2021 2021.10

竹の空間構造利用に関する国内外の現状と動向

永井　拓生

第15回コロキウム構造形態の創生と解析2020 143 - 147 2020.11

常時微動測定による伝統木造建築物の振動特性パラメータの推定

木原　湧，永井　拓生

第15回コロキウム構造形態の創生と解析2020 17 - 22 2020.11

ヨシ束ね柱を用いたBening-Active要素に関する基礎的研究

山﨑　稜，山田　大高，木原　湧，永井　拓生

第15回コロキウム構造形態の創生と解析2020 29 - 34 2020.11

Design of Lightweight Spatial Structure Using Unmanaged Plant Materials - Practical Study on Bamboo and Reed -

2020.3

Nagasaki Job Port Reviewed

永井拓生　他

日本建築学会建築雑誌増刊（作品選集2020） 2020.3

Relationship between bending performance and chip size of strand board made from reed International journal

Takuo NAGAI

Proceedings of the IASS Annual Symposium 2019 – Structural Membranes 2019 2019.10

Study on vibration control method for traditional folk house using CLT bearing panel connected with damper

Yu KIHARA, Takuo NAGAI

Proceedings of the IASS Annual Symposium 2019 – Structural Membranes 2019 2019.10

琵琶湖のヨシを用いた構造デザインの実践

永井　拓生

コロキウム構造形態の解析と創生2018 2018.10

Design and construction of temporary pavilion using reed as structural material Reviewed International journal

Takuo NAGAI

Proceedings of the 12th Asian Pacific Conference on Shell & Spatial Structures 2018.10

主体的快適性に関する基礎的研究

遠田敦, 富樫英介, 永井拓生, 中川純

住総研研究論文集・実践研究報告集 ( 48 ) 169 - 178 2018

Design & construction of temporary pavilion using reed as structural material Reviewed

Takuo Nagai, Hiromasa Shirai, Takeo Matsuoka

AIJ Journal of Technology and Design 23 ( 55 ) 875 - 880 2017.10

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Architectural Institute of Japan

In this article, design and construction of a temporary pavilion using reed as structural material are reported. Recently, reed is little utilized with the decline of reed industries. The aim of this study is to develop a new effective use of reed as tourist resources. To realize the structure of the building only by reed, a method to make joint between reeds quickly are developed. Because of very light weight of the building, enough rigidity and strength against wind load are required. We applied the dome-like shape and "Semirandom truss" to the building and evaluated its structural behavior and performance.

DOI： 10.3130/aijt.23.875

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Full scale test and numerical analysis of bamboo truss structure with hand-made rope joint - Study on design of temporary building using bamboo as structural material Reviewed

Takuo Nagai, Kenta Horie, Yuji Goto

AIJ Journal of Technology and Design 23 ( 53 ) 99 - 102 2017.2

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Architectural Institute of Japan

In our previous study, we proposed the joint-making method for constructing temporary emergency buildings in areas affected by hazards using gaffer tape and rope to construct bamboo structure and discussed the allowable strength of joints. However, we have not examined the precise restoring force properties of joints. In this study, we first construct a restoring force model for a single joint based on experimental results. Next, we apply the model to a simple full-scale truss and conduct numerical analysis. Finally, we discuss the validity of the model by comparing the numerical results with the experimental results on the actual truss.

DOI： 10.3130/aijt.23.99

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竹の設計強度の算定および人力施工が可能な接合法の開発－竹を構造材料として用いた応急仮設建築物の設計・施工の実例　その2－ Reviewed

永井　拓生，陶器　浩一

日本建築学会技術報告集 22 ( 52 ) 952 - 958 2016.10