Plastic design method - Soseisekkeiho (English spelling) plastic design

Japanese: 塑性設計法 - そせいせっけいほう(英語表記)plastic design
Plastic design method - Soseisekkeiho (English spelling) plastic design
This method is aimed at statically indeterminate frame structures made of ductile materials that can withstand large plastic deformation without fracture, and involves introducing the concept of plastic hinges to calculate the collapse load, and designing the structure so that a certain safety factor (called the load factor) is ensured against this collapse load. It is considered one of the design methods included in the broader limit design method, and has been widely adopted in the design of buildings since the mid-1960s, mainly in the United States and the United Kingdom. In Japan, the only examples found are bridges with relatively simple structural forms, but research is continuing in the field of civil engineering and architectural engineering, with the aim of formulating standards for more rational design of structures based on reliability, while also taking into account the ideas of plastic design methods.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
延性に富み,破断せずに大きな塑性変形に耐えることのできる材料からなる,主として不静定骨組構造物を対象とし,塑性ヒンジの概念を導入して崩壊荷重を求め,この崩壊荷重に対してある安全率(荷重係数と呼ばれる)が確保されるように構造物を設計する方法。さらに広い意味をもつ極限設計法に包含される設計法の一つとして位置づけられ,米英を中心に1960年代中ごろから建築物の設計などに広く採用されている。日本では,比較的構造形式の単純な橋に実施例が見られる程度であるが,塑性設計法の考え方も勘案しつつ,信頼性に基づいてより合理的に構造物を設計する規範の策定を目ざし,土木建築工学の分野で調査研究が続けられている。

出典 株式会社平凡社世界大百科事典 第2版について 情報

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