Effects of infill walls and floor diaphragms on the dynamic characteristics of a narrow-rectangle building
Pan, Tso-Chien; You, X; Brownjohn, James
Date: 24 February 2006
Journal
Earthquake Engineering and Structural Dynamics
Publisher
Wiley
Publisher DOI
Abstract
Most buildings in Singapore are lightly reinforced concrete structures which are manly
designed for gravity loading only, because Singapore is an island country located in a low
to moderate seismic region. The dynamic properties of a typical high-rise residential
building with a long, narrow rectangular floor plan are studied using ...
Most buildings in Singapore are lightly reinforced concrete structures which are manly
designed for gravity loading only, because Singapore is an island country located in a low
to moderate seismic region. The dynamic properties of a typical high-rise residential
building with a long, narrow rectangular floor plan are studied using both experimental and
numerical methods. The effects of the brick infill walls and the flexible diaphragms on the
dynamic characteristics of the building are discussed in detail. The results from the ambient
vibration tests are correlated with the numerical results of three different finite element
models with different levels of sophistication. They include a bare frame model, a frame
model with brick infill walls, and a frame model with both brick infill walls and flexible
diaphragms. The dynamic properties of the third model match very well with the measured
results in terms of both the natural frequencies and the mode shapes. The correlation results demonstrate the respective effects of the brick infill walls and the flexible diaphragms on
the dynamic characteristics of the narrow-rectangle building structure.
Engineering
Faculty of Environment, Science and Economy
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