Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nonlinear Analysis of Pre-Northridge Steel High-Rise Building Using Modal-Pushover-Based Ground Motion Scaling Procedure
Nonlinear response history analysis provides a robust analytical approach to estimate and evaluate existing building performance but it is sensitive to the characteristics of input ground motion. ASCE 7-05 provides guidelines for selecting and scaling from individual ground motion records. Recently, researchers developed an alternative method called "modal-pushover-based ground motion scaling procedure" (MPS) that considers the strength and higher mode effects of the individual building in its selection and scaling methodology. A 24-story steel moment frame building with "pre-Northridge" connections is chosen as a case study to compare the response predictions of the ASCE 7-05 method and the MPS method. Based on comparison the inter-story drift ratios, the MPS method resulted in significantly lower demands than the ASCE 7-05 method. The case study includes a re-evaluation of the structure after a conceptual rehabilitation. Implications of the rehabilitation on the scaling of ground motion records when utilizing the MPS method are discussed.
Nonlinear Analysis of Pre-Northridge Steel High-Rise Building Using Modal-Pushover-Based Ground Motion Scaling Procedure
Nonlinear response history analysis provides a robust analytical approach to estimate and evaluate existing building performance but it is sensitive to the characteristics of input ground motion. ASCE 7-05 provides guidelines for selecting and scaling from individual ground motion records. Recently, researchers developed an alternative method called "modal-pushover-based ground motion scaling procedure" (MPS) that considers the strength and higher mode effects of the individual building in its selection and scaling methodology. A 24-story steel moment frame building with "pre-Northridge" connections is chosen as a case study to compare the response predictions of the ASCE 7-05 method and the MPS method. Based on comparison the inter-story drift ratios, the MPS method resulted in significantly lower demands than the ASCE 7-05 method. The case study includes a re-evaluation of the structure after a conceptual rehabilitation. Implications of the rehabilitation on the scaling of ground motion records when utilizing the MPS method are discussed.
Nonlinear Analysis of Pre-Northridge Steel High-Rise Building Using Modal-Pushover-Based Ground Motion Scaling Procedure
Sumer, Ali (Autor:in) / Kersting, Ryan A. (Autor:in) / Hutchinson, David A. (Autor:in)
ATC and SEI Conference on Improving the Seismic Performance of Existing Buildings and Other Structures ; 2009 ; San Francisco, California, United States
07.12.2009
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
| British Library Conference Proceedings | 2009
Modal-Pushover-Based Ground-Motion Scaling Procedure
| British Library Online Contents | 2011
Modal-Pushover-Based Ground-Motion Scaling Procedure
| Online Contents | 2011