土木工程建筑工程毕业设计外文翻译.doc

大连交通大学2011届本科生毕业设计(论文)外文翻译

Seismic Collapse Safety of Reinforced Concrete Buildings:
I. Assessment of Ductile Moment Frames

Curt B. Haselton1, Abbie B. Liel2, Gregory G. Deierlein3, Brian S. Dean4, Jason H. Chou5

Ground motions used for the nonlinear dynamic analyses are recordings from large magnitude earthquakes (magnitude to ) recorded at moderate fault rupture
distances (10 to 45 km). The 39 ground motion record pairs (each with two orthogonal ponents) and their selection criteria are documented in Haselton and Deierlein (2007). This ground motion set is an expanded version of the far-field ground motion set utilized in the FEMA P-695 (FEMA 2009).
Ground motion records are selected and scaled without considering the distinctive spectral shape of rare (extreme) ground motions, due to difficulties in selecting and scaling a different set of records for a large set of buildings having a wide range of first- mode periods. To account for the important impact of spectral shape on collapse assessment, shown by Baker and Cornell (2006), the collapse predictions made using the general set of ground motions are modified using a method proposed by Haselton et al. (2009). The expected spectral shape of rare (large) California ground motions is
accounted for through a statistical parameter referred to as epsilon (ε), which is a measure of the difference between th