Development of Site Classification System and Modification of Design Response Spectra considering Geotechnical Site Characteristics in Korea (I) - Problem Statements of the Current Seismic Design Code

• DOI: 10.5000/eesk.2006.10.2.039
• Publication Date: 2010-06-14T04:22:50Z
• Authors: Dong-Soo Kim; Jong-Ku Yoon; Eun-Seok Bang
• Keywords: 0301 basic medicine; 0303 health sciences; 03 medical and health sciences

Site response analyses were peformed based on equivalent linear technique using the shear wave velocity profiles of 162 sites collected around the Korean Peninsula. The she characteristics, particularly the shear wave velocities and the depth to bedrock, are compared to those in the western United States. The site coefficients of short period and the long period obtained from this study were significantly different compared to 1997 Uniform Building Code (1997 UBC). underestimated the motion in shot period ranges and overestimated the motion in mid period ranges in Korean seismic guideline. It is found that the existing Korean seismic design code were is required to be modified considering geological site conditions in Korea for the reliable estimation of sue amplification. Problems of the current seismic design code were dicussed in this paper and the development of site classification method and modification of desing response spectra were discussed in the companion papers(II-Development of Site Classification System and III-Modification of Dosing Response Specra).