Author:
Pinzón Luis A.,Hidalgo-Leiva Diego A.,Moya-Fernández Aarón,Schmidt-Díaz Victor,Pujades Luis G.
Abstract
In this paper, a new seismic site classification for the Costa Rican Strong-Motion Network (CRSMN) is proposed. The soil profile classification of the Costa Rican Seismic Code based on the average shear-wave velocity of the top 30 m (VS30) is used as a reference. The site fundamental period (Tf) is included as a parameter to complement the existing characterization. For this, the VS30 measurements from 52 accelerometric stations are related to the site fundamental period obtained through horizontal-to-vertical spectral ratios (HVSR) using ground motion records from the Costa Rican Strong-Motion Database. The H/V ratios are estimated with 5% damped acceleration response spectra and with traditional Fourier amplitude spectra from the S-wave window. From the relation between VS30 and Tf, different ranges of Tf are assigned to the existing soil profile classification and a graph with three-lines and four-areas is proposed to classify the stations of the CRSMN.
Publisher
Universidad Nacional de Colombia
Subject
General Earth and Planetary Sciences
Reference22 articles.
1. Alfaro, A., Pujades, L. G., Goula, X., Susagna, T., Navarro, M., Sanchez, J., & Canas, J. A. (2001). Preliminary map of soil’s predominant periods in Barcelona using microtremors. Pure and Applied Geophysics, 158, 2499–2511. DOI: 10.1007/PL00001182
2. ASCE (2017). Minimum Design Loads and Associated Criteria for Buildings and Other Structures (ASCE/SEI 7-16).
3. BSSC (2003). Building Seismic Safety Council, NEHRP recommended provisions for seismic regulations for new buildings and other structures. Report FEMA-450 (Provisions), Federal Emergency Management Agency (FEMA). Washington D.C., United States
4. Cadet, H., Macau, A., Benjumea, B., Bellmunt, F., & Figueras, S. (2011) From ambient noise recordings to site effect assessment: The case study of Barcelona microzonation. Soil Dynamics and Earthquake Engineering, 31, 271–281. DOI: 10.1016/j.soildyn.2010.07.005
5. Caselles, J. O., Pérez-Gracia, V., Franklin, R., Pujades, L. G., Navarro, M., Clapes, J., Canas, J. A., García, F. (2010). Applying the H/V method to dense cities. A case study of Valencia city. Journal of Earthquake Engineering, 14, 192–210. DOI: 10.1080/13632460903086069
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献