Effect of loading speed on tensile performance of bottom of column joint in wooden structure

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K04701
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 23010:Building structures and materials-related
• Research Institution: Akashi National College of Technology
• Principal Investigator: Shojo Naoya 明石工業高等専門学校, 建築学科, 准教授 (50413810)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: 木質構造 / 柱頭柱脚接合部 / 載荷速度 / 引張性能

Outline of Final Research Achievements

The purpose of this study is to clarify the effect of loading speed on the tensile performance of bottom of column joints in wooden structure. The tensile experiments are carried out on bottom of column joint using metal connectors at different loading speeds. As a result, the yield load and maximum load are not clearly affected by changing the loading speed. And the fracture behavior is not affected by loading speed. And the fracture behavior is not affected by loading speed. However, the initial stiffness becomes comparable or lower as the loading speed increases.

Free Research Field

建築学

Academic Significance and Societal Importance of the Research Achievements

載荷速度を変化させた柱脚引張実験を行うことで初期剛性に影響があることが分かった。接合部の性能は建物全体に影響するため，これらの影響を踏まえた建物全体の耐震性への影響を評価するための基礎データが得ることができた。また，建物全体への影響を考慮することでより精度の高い耐震設計法に寄与することが期待される。