Effects of infill walls and floor diaphragms on the dynamic characteristics of a narrow-rectangle building

✍ Scribed by Tso-Chien Pan; Xuting You; James M. W. Brownjohn

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 569 KB
• Volume: 35
• Category: Article
• ISSN: 0098-8847
• DOI: 10.1002/eqe.550

✦ Synopsis

Most buildings in Singapore are lightly reinforced concrete structures, which are mainly 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 oor plan are studied using both experimental and numerical methods. The e ects of the brick inÿll walls and the exible 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 di erent ÿnite element models with di erent levels of sophistication. They include a bare frame model, a frame model with brick inÿll walls, and a frame model with both brick inÿll walls and exible 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 e ects of the brick inÿll walls and the exible diaphragms on the dynamic characteristics of the narrow-rectangle building structure.