|Table of Contents|

Semi-analytical Solution for Free Vibration of Short Shear Wall with Small Openings(PDF)

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

Issue:
2006年03期
Page:
50-
Research Field:
Publishing date:
2006-09-20

Info

Title:
Semi-analytical Solution for Free Vibration of Short Shear Wall with Small Openings
Author(s):
LOU Meng-lin;  LI Shou-ji
State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
Keywords:
short shear wall with small opening;  free vibration analysis;  direct modal perturbation method;  Ritz transformation
PACS:
TU398.2
DOI:
-
Abstract:
Based on the principal of direct modal perturbation method, a simplified semi-analytical technique for the modal characteristics of the short shear wall with small openings was developed. At first, the short shear wall with small openings was considered as a shear cantilever system with variable cross sections. The differential equation of motion with variable coefficient of the system was established according to the dynamic analysis theory of the distributed-parameter systems. Then, the effects of the small openings in the shear wall on the modal characteristics of the shear cantilever system with variable cross sections were discussed and modified utilizing the modal characteristics of the shear cantilever system having uniform properties and the direct modal perturbation. Finally, a set of nonlinear algebraic equations was obtained by applying Ritz transformation to solve the modal characteristics of the short shear wall with small openings. The results of numerical examples show that the proposed method is simplification and has good precision.

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Last Update: 2006-09-20