Ultimate fracture performance of steel hysteresis dampers in damage control structures

• Project/Area Number: 21560597
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Building structures/materials
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: MINAMI Susumu 首都大学東京, 都市環境科学研究科, 助教 (00219693)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2011: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000); Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
• Keywords: 建築構造 / 鋼構造 / 鋼材 / ダンパー / 制振 / 地震応答 / 繰返し載荷実験 / エネルギー吸収 / 地震応容

Research Abstract

There is the so called "damage control structure" that composed with elastic main frames and elasto-plastic elements to absorb energy (hysteresis dampers). The ultimate performance of steel hysteresis damper is limited by its fracture. A method of estimating the energy absorption capacity of the dampers under ground motion is investigated based on cyclic loading tests.