Experimental research on ice-induced vibration of concrete-filled double-skin circular stainless steel tube platform
Zhang Jigang1,2 Liu Feifei1,2 Zhao Tiejun1,2
1. School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China; 2. Cooperative Innovation Center of Engineering
Construction and Safety in Shandong Blue Economic Zone, Qingdao University of Technology, Qingdao 266033, China
On the basis of jacket offshore platform, a novel high disaster prevention and mitigation structure for offshore platform which named concrete-filled double-skin circular stainless steel tube platform (CFDSST-P) has been presented. A 1:10 reduced scale test has been done to analyze the different of the novel platform and original platform. The result shows that concrete-filled double–skin circular stainless steel tubes platform can effectively reduce the dynamic response of platform. Take Push3 for example, the peak acceleration and displacement of concrete-filled double–skin circular stainless steel tubes platform’s upper deck can reduce 12.12% and 29.40%, and the error of test and ABAQUS’s simulation is below 15%. The analysis of bearing capacity of the concrete-filled double-skin circular stainless tubes platform and the origin platform shows that the concrete-filled double-skin circular stainless tubes platform has more stronger bearing ability. Therefore, the concrete-filled double-skin circular stainless steel tubes platform is a kind of better novel type platform.
