PERFORMANCE VERIFICATION BY QUASI-STATIC LOADING TESTS AND TIME HISTORY RESPONSE ANALYSIS OF DISPLACEMENT RESTRAINT BRACE WITH PRESTRESSED DISC SPRINGS / 準静的載荷実験と時刻歴応答解析によるプレストレスを与えた皿ばねを有する変位制御型ブレースの性能検証
- Resource Type
- Journal Article
- Authors
- Kyouzou FUKAZAWA; Makoto YAMAKAWA; Takeshi ASAKAWA; Yuji MIYAZU; Yuta KOBAYAKAWA; 宮津 裕次; 小早川 裕太; 山川 誠; 朝川 剛; 深澤 協三
- Source
- 鋼構造論文集 / STEEL CONSTRUCTION ENGINEERING. 2023, 30(119):119-17
- Subject
- Disc springs
Impact load
PC steel bars
PC鋼棒
Quasi-static loading tests
Steel frames
準静的載荷実験
皿ばね
衝撃荷重
鋼構造骨組
- Language
- Japanese
- ISSN
- 1880-9928
1884-0329
A new type of PC steel bar brace for moment resistance steel frames has been proposed, which is called Displacement Restraint PC steel bar Brace (DRB). Prestressed disc springs at the ends of the DRB provide initial stiffness to the DRB. Free-fall contact tests were conducted with and without disc springs at the end of the DRB to confirm the impact load at contact. Quasi-static loading tests were also conducted to confirm the motion of the ends of the DRB and the impact load at contact under inter-story deformation at a certain frequency and amplitude. Furthermore, the effectiveness of providing initial displacements and initial stiffnesses is confirmed by time history response analyses.