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Research and Application for Target Displacement in Static Elastoplastic Analysis(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2009年04期
Page:
120-126
Research Field:
Publishing date:
2009-12-20

Info

Title:
Research and Application for Target Displacement in Static Elastoplastic Analysis
Author(s):
HAO An-min;  ZHOU De-yuan
School of Civil Engineering, Tongji University, Shanghai 200092, China
Keywords:
target displacement;  capacity spectrum method;  equivalent damp;  energy-based incremental displacement;  inelastic demand spectrum
PACS:
TU313
DOI:
-
Abstract:
Two methods of building capacity spectrum curves were comparatively analyzed, e.g., ATC-40 capacity spectrum method and the energy-based incremental displacement method. Based on the relationships between strength reduction factor, ductility coefficient and linear period respectively, the two methods of building demand spectrum curves were proposed. Then, the methods were applied to a frame-supported shear-wall structure with beam transfer story to investigate their feasibilities in complex high-rise buildings. The results show that capacity spectrum curves from the two methods are similar; however, improved capacity spectrum method usually can obtain more smooth and stable curves. At the same time, the target displacement from improved capacity spectrum method is less than that of ATC-40 capacity spectrum method, and the target displacement from fundamental mode shape patterns is less than that of mode composition SRSS patterns.

References:

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Last Update: 2009-12-20