Abstract
During the great Wenchuan earthquake, about 460 permanent free-field stations in National Strong Motion Observation Network System (NSMONS) of China captured the main shock acceleration records. These records can be applied to site effect analyses, and then the site classification of those permanent stations can be carried out firstly, which will served as the fundamental information for further research. In this paper, the site of near-fault stations is classified by horizontal-to-vertical spectral ratio (HVSR) method according to the site class description of Japan earthquake resistant design code and response spectral shapes (RSS) method following the site class description of the 1997 Uniform Building Code (UBC) provisions. Then based on the detailed borehole data of those free-field stations, the equivalent shear wave velocity and overburden thickness are calculated and the site classifications are given by Chinese code for seismic design of buildings. Furthermore, for the stations having successful microtremor test data, the site dominant periods are computed to verify the results of site classification. Finally, combined with all the above results, the recommended site classes of near-fault permanent free-field stations are given.
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References
Borcherdt R D (1970). Effects of local geology on ground motion near San Francisco Bay. Bull Seism Soc Amer60(1): 29–61.
Building Seismic Safety Council (2000). The 2000 NEHRP Recommended Provisions for New Buildings and Other Structures. Part I (Provisions) and Part II (Commentary). FEMA 368/369, Washington D.C., 47.
China Earthquake Administration (2008). Report on Strong Earthquake Motion Records in China, Uncorrected Acceleration Records from Wenchuan MS8.0 Earthquake. Seismological Press, Beijing, 1 (in Chinese).
China Earthquake Investigation Group to Japan (1995). Investigation of Great Hanshin Earthquake in Japan. Seismological Press, Beijing, 45 (in Chinese).
Crouse C B and McGuire J W (1996). Site response studies for purpose of revising NEHRP seismic provisions. Earthquake Spectra12(3): 407–439.
Dong D, Zhou X Y, Xu G D and Ji J B (2006). Some analyses on effects of site classification on ground motion characteristics in Chi-Chi, Taiwan earthquake. Seismology and Geology28(1): 22–36 (in Chinese with English abstract).
Fukushima Y, Bonilla L F, Scotti O and Douglas J (2007). Site classification using horizontal-to-vertical response spectral ratios and its impact when deriving empirical ground-motion prediction equations. J Earthq Eng11(5): 712–724.
Garniel R, Barbui L and Malisan P (2009). Improvement of HVSR technique by self-organizing map (SOM) analysis. Soil Dynam Earthq Eng29(6): 1 097–1 101.
Ghasemi H, Zare M, Fukushima Y and Sinaeian F (2009). Applying empirical methods in site classification, using response spectral ratio (H/V): A case study on Iranian strong motion network (ISMN). Soil Dynam Earthq Eng29(1): 121–132.
Guo M Z (2000). Analysis of Microtremor Wave Field and Its Application to Site Dynamic Characteristic Measurements. PhD Dissertation, Institute of Engineering Mechanics, China Earthquake Administration, Harbin, 1–133 (in Chinese with English abstract).
Hu Y X, Sun P S, Zhang Z Y and Tian Q W (1980). Effects of site condition on earthquake damage and ground motion. Earthq Eng Eng Vib1(1): 34–41 (in Chinese with English abstract).
Japan Road Association (1990). Specifications for Highway Bridges. Part V: Seismic Design. Maruzen Co. Ltd., Tokyo, 207.
Konno K and Ohmachi T (1998). Ground-motion characteristics estimated from spectral ratio between horizontal and vertical components of micro-tremor. Bull Seism Soc Amer88(1): 228–241.
Kuo K W (1992). The Geological Character of the CWB Strong Motion Network: Taipei area. Central Weather Bureau Report CW81-1A-10, 77 (in Chinese).
Kuo K W (1993). The Geological Character of the CWB Strong Motion Net-Work: Taoyuan Hsinchu and Miaoli Area. Central Weather Bureau Report CW82-1A-11, 76 (in Chinese).
Kuo K W (1994). The Geological Character of the CWB Strong Motion Net-Work: Chianan Area. Central Weather Bureau Report CW83-1A-12, 98 (in Chinese).
Lee C T, Cheng C T, Liao C W and Tsai Y B (2001). Site classification of Taiwan free-field strong-motion stations. Bull Seism Soc Amer91(5): 1 283–1 297.
Li X J and Peng Q (2001). Calculation and analysis of earthquake ground motion parameters for different site categories. J Earthq Eng Eng Vib21(1): 29–36 (in Chinese with English abstract).
Li X J, Zhou Z H, Yu H Y, Wen R Z, Lu D W, Huang M, Zhou Y N and Cu J W (2008). Strong motion observations and recordings from the great Wenchuan earthquake. Earthq Eng Eng Vib7(3): 235–246.
Ministry of Construction of the People’s Republic of China and General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China (2001). National Standard of People’s Republic of China, Code for Seismic Design of Buildings. China Architecture & Building Press, Beijing, 21–23 (in Chinese).
Mohraz B (1976). A study of earthquake response spectra for different geological conditions. Bull Seism Soc Amer66(3): 915–935.
Nakamura Y (1989). A method for dynamic characteristics estimation of subsurface using microtremor on the ground surface. Quarterly Report of the Railway Technical Research Institute30(1): 25–33.
Phung V, Atkinson G M and Lau D T (2006). Methodology for site classification estimation using strong ground motion data from the Chi-Chi, Taiwan, earthquake. Earthq Spectra22(2): 511–531.
Rodriguez V H S and Midorikawa S (2002). Applicability of the H/V spectral ratio of microtremors in assessing site effects on seismic motion. Earthq Eng Struct Dynam31(2): 261–279.
Seed H B, Ugas C and Lysmer J (1976). Site-dependent spectra for earthquake-resistant design. Bull Seism Soc Amer66(1): 221–243.
Wen R Z, Shi D C and Ren Y F (2008). Site classification based on geological genesis and its application. Proceedings of the 14th World Conference on Earthquake Engineering. Beijing, China, Paper ID 04-02-0125.
Wills C J, Petersen M, Bryant W A, Reichle M, Saucedo G J, Tan S, Taylor G and Treiman J (2000). A site-conditions map for California based on geology and shear-wave velocity. Bull Seism Soc Amer90(6B): S187–S208.
Yamazaki F and Ansary M A (1997). Horizontal-to-vertical spectrum ratio of earthquake ground motion for site characterization. Earthq Eng Struct Dynam26(7): 671–689.
Zare M, Bard P Y and Ghafory-Ashtiany M (1999). Site characterizations for the Iranian strong motion network. Soil Dynam Earthq Eng18(2): 101–123.
Zhai Y M, Li W Y and Jiang T (2004). Micro-tremor observation and its application to the evaluation of site predominant period. J Seis Res27(3): 277–282 (in Chinese with English Abstract).
Zhao J X, Irikura K and Zhang J (2006). An empirical site-classification method for strong-motion stations in Japan using H/V response ratio. Bull Seism Soc Amer96(3): 914–925.
Zhou X Y (1990). Site Foundation Design Earthquake. Seismological Press, Beijing, 10–19 (in Chinese).
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Wen, R., Ren, Y., Zhou, Z. et al. Preliminary site classification of free-field strong motion stations based on Wenchuan earthquake records. Earthq Sci 23, 101–110 (2010). https://doi.org/10.1007/s11589-009-0048-8
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DOI: https://doi.org/10.1007/s11589-009-0048-8