Review of seismic response of offshore reef and site
In order to understand the research status of seismic response of offshore reef and site,this paper summarizes the research status of seismic response of offshore reef from the aspects of geological structure of reef,numerical simulation methods of seismic response of reef,and site effects of reef,and compares and analyzes the fluid-structure interaction simulation method,solid boundary simulation method and ground motion input method in the numerical simulation methods of offshore reef.The research results related to the site effect of seismic response of reef in the existing sea area were analyzed.The results show that seawater has a significant impact on the amplification coefficient of the island and reef sites.The amplification effect of PGA on the surface of the reef tends to decrease with the increase of the peak ground acceleration.The response of reef to ground motions in the middle and low frequency bands is more significant,and the peak amplification coefficient of acceleration is generally between 1.5 and 4.0.In order to meet the seismic design of island and reef engineering,it is necessary to further solve the key scientific problems such as the reasonable ground motion input of island and reef engineering,the seismic response law of island and reef sites,and the design ground motion parameters of island and reef engineering.
万方数据
维普
