Para acceder a los documentos con el texto completo, por favor, siga el siguiente enlace: http://hdl.handle.net/2117/26489

Passive and hybrid mitigation of potential near-fault inner pounding of a self-braking seismic isolator
Abdel Kareem Moustafa, Mohamed Ismail; Rodellar Benedé, José; Pozo Montero, Francesc
Universitat Politècnica de Catalunya. Departament d'Enginyeria de la Construcció; Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III; Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació; Universitat Politècnica de Catalunya. CODALAB - Control, Dinàmica i Aplicacions
A seismic isolated structure is usually a long-period structural system, which may encounter a low-frequency resonance problem when subjected to a near-fault earthquake that usually has a long-period pulse-like waveform. This long-period wave component may result in an enlargement of the base displacement and a decrease of the isolation efficiency. To overcome this problem, a rolling-based seismic isolator, referred to as roll-n-cage (RNC) isolator, has been recently proposed. The RNC isolator has a built-in buffer (braking) mechanism that limits the peak isolator displacements under severe earthquakes and prevents adjacent structural pounding. This paper addresses the problem of passive and hybrid mitigation of the potential inner pounding of the self-braking RNC isolator under near-fault earthquakes. Numerical results show that the RNC isolator can intrinsically limit the isolator displacements under near-fault earthquakes with less severe inner pounding using additional hysteretic damping and active control forces
Peer Reviewed
Earthquake engineering
Base isolation
Roll-n-cage isolator
Near-fault earthquakes
Hybrid structural control
Pounding
Buffer mechanism
BASE-ISOLATED STRUCTURES
ADJACENT STRUCTURES
ISOLATED BUILDINGS
DAMPERS
Enginyeria sísmica -- Models matemàtics
info:eu-repo/semantics/publishedVersion
Artículo
         

Mostrar el registro completo del ítem

Documentos relacionados

Otros documentos del mismo autor/a

Abdel Kareem Moustafa, Mohamed Ismail; Rodellar Benedé, José; Pozo Montero, Francesc
Abdel Kareem Moustafa, Mohamed Ismail; Pozo Montero, Francesc; Rodellar Benedé, José
Abdel Kareem Moustafa, Mohamed Ismail; Pozo Montero, Francesc; Rodellar Benedé, José
Abdel Kareem Moustafa, Mohamed Ismail; Casas Rius, Joan Ramon; Rodellar Benedé, José
Abdel Kareem Moustafa, Mohamed Ismail; Rodellar Benedé, José; Carusone, Gennaro; Domaneschi, Marco; Martinelli, Luca