Scholarly Articles
국내 중력식 안벽의 수평지진계수 산정 방법에 대한 고찰
Journals
한국지진공학회
Author
이문교,조성배,조형익,박헌준,김동수
Publication Date
20170301
Pseudo-static approach has been conventionally applied for the design of gravity quay walls. In this method, the decision to select
an appropriate seismic coefficient (kh) is an important one, since kh is a key variable for computing an equivalent pseudo-static inertia
force. Nonetheless, there is no unified standard for defining kh. Likewise, port structure designers in Korea have a difficulty in
choosing an appropriate kh definition, as there are conflicts in how kh is defined between the existing seismic code of port structures and the proposed new one. In this research, various seismic design codes for port structures were analyzed to compare the definitions of the seismic coefficient. The results were used for the proposing a unified seismic coefficient definition. Further, two dynamic centrifuge tests were performed with different wall heights (5 m, 15 m) to clarify the reference point of peak acceleration used in determination of kh according to the wall height. Results from dynamic centrifuge experiments showed that correction factors for the peak ground acceleration considering both the wall height and allowable displacement are needed to calculate kh.
an appropriate seismic coefficient (kh) is an important one, since kh is a key variable for computing an equivalent pseudo-static inertia
force. Nonetheless, there is no unified standard for defining kh. Likewise, port structure designers in Korea have a difficulty in
choosing an appropriate kh definition, as there are conflicts in how kh is defined between the existing seismic code of port structures and the proposed new one. In this research, various seismic design codes for port structures were analyzed to compare the definitions of the seismic coefficient. The results were used for the proposing a unified seismic coefficient definition. Further, two dynamic centrifuge tests were performed with different wall heights (5 m, 15 m) to clarify the reference point of peak acceleration used in determination of kh according to the wall height. Results from dynamic centrifuge experiments showed that correction factors for the peak ground acceleration considering both the wall height and allowable displacement are needed to calculate kh.