|
Title |
Structural Behavior of Joints between the Hysteretic Steel Damper Connector and RC Wall Depending on Connection Details
|
|
DOI |
https://doi.org/10.4334/JKCI.2012.24.6.737 |
|
Keywords |
강재형 댐퍼 ; 에너지 소산 ; 강성저하 ; 강섬유 보강 콘크리트 hysteretic damper ; energy dissipation ; stiffness degradation ; steel fiber reinforced concrete |
|
Abstract |
Hysteretic steel damper has been applied mainly to steel buildings. However, the usage in RC buildings is rapidly increasing recently. In order to apply the steel hysteretic damper in RC buildings, supporting elements of the damper should have sufficient strength and stiffness suitable for transferring damper forces to beams and walls. But due to the inevitable damage in reinforced concrete elements due to cracking, identification of the load transfer mechanism from damper to supporting element and hysteretic characteristics of the supporting element are extremely important in evaluating the damper behavior. Experiments were carried out on connection details between RC walls and supporting elements of the steel plate typed damper such as EaSy damper. The test results showed that fracture patterns of all specimens were almost identical except in the crack number and pattern associated with shear loading condition. Among the specimens, HD-3 shoed a well distributed cracks patterns along with good performance with respect to energy dissipation capacity, stiffness deterioration, and strength degradation.
|