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Wave propagation in a seven-story reinforced concrete building: II. Observed wavenumbers

✍ Scribed by M.I Todorovska; S.S Ivanović; M.D Trifunac

Book ID
104322454
Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
553 KB
Volume
21
Category
Article
ISSN
0267-7261

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✦ Synopsis

This paper presents estimates of wavenumbers of propagating waves in a seven-story reinforced concrete building in Van Nuys, California, using recorded response to four earthquakes. The phase velocities inferred from these wavenumbers are consistent from one earthquake to another. They are also consistent, inside the building, with independent estimates of the shear wave velocities in the building (e.g. using ambient vibration tests), and along the base, with phase velocities of Love waves typical for San Fernando Valley.

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Wave propagation in a seven-story reinforced concrete building: III. Damage detection via changes in wavenumbers
✍ M.D Trifunac; S.S Ivanović; M.I Todorovska 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 544 KB

This paper presents low frequency wavenumbers in a seven-storey reinforced concrete building estimated from its recorded response to eleven earthquakes, one of which (1994 Northridge) caused visible structural damage, and two of which are its aftershocks. The wavenumbers, K i;j ðf Þ; are estimated f