1995 Fiscal Year Final Research Report Summary
A Study on Earthquake Resistant Design of RC Structures Considering Damage Level
| Project/Area Number |
06650617
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Building structures/materials
|
|---|
| Research Institution | TOHOKU UNIVERSITY |
|---|
Principal Investigator |
INOUE Norio Faculty of Eng., Tohoku Univ., Assoc. Prof., 工学部建築学科, 助教授 (50250725)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
SAITO Taiki Faculty of Eng., Tohoku Univ., Reseach Assoc., 工学部建築学科, 助手 (00225715)
SHIBATA Akenori Faculty of Eng., Tohoku Univ., Prof., 工学部災害制御研究センター, 教授 (30005251)
|
|---|
| Project Period (FY) |
1994 – 1995
|
| Keywords | Damage Level / Energy / Inelastic Analysis / Ground Motion / Reinforced Concrete / Cumulative Damage / Earthquake Response |
|---|
| Research Abstract |
In this study, behavior of RC structures during strong earthquake is investigated in the viewpoint of energy response for the purpose of studying on seismic damage mechanism.
1. To study on behavior of energy response of structures, single degree of freedom system with various natural period and yielding force is analyzed. Damaging potential of earthquakes to structures is estimated by total input energy and damage of RC structures is evaluated both by ductility factor and by dissipated hysteretic energy.
2. Relation and difference of response behavior between one mass and RC frame with beam yield mechanism is studied, by equivalent single degree of freedom system of frame with assumption of elastic first mode. And response behavior of one mass and RC frame designed considering energy response is investigated. It is found that restoring force of one mass is almost equal tothe base shear of corresponding frame, and that ductility factor of one mass and ductility factor of beam are related well.
3. By the results of study, an earthquake resistant design procedure considering damage level as design limit is proposed. By this procedure, necessary yield force of buildings can be estimated using input energy spectrum without earthquake response analysis.
|
