Prof. Xilin Lu – Abstract

Prof. Xilin Lu – Tongji University, China

Prof. Xilin Lu received his MSc (1981) and Ph.D. (1984) in the area of Civil and Structural Engineering from Tongji University, then he became a faculty member until now. He studied at University of Alberta (Canada) on the punching shear behavior of RC slabs during 1990, and worked as a research associate in the University of Hong Kong from 1991 to 1992, where he investigated the seismic behavior of RC shear wall with vertical slits. His research area includes dynamic model testing and detailed analysis of complex structures, seismic design and response control of tall buildings. His research work resulted in the development of seismic design codes of Shanghai Municipal Government and China National Code. Currently he is the Chief Editor of “Structural Design of Tall and Special Buildings”, Vice President of the International Association for Experimental Structural Engineering, Fellow member of International Association for Bridge and Structural Engineering, and Member of ASCE. He has published about 100 papers in international journals, more than 30 keynote or invited lectures at international conferences and about 210 papers in international conference proceedings. He received the 2017 Nathan M. Newmark Medal “for pioneering research in the development of dynamic testing, structural seismic design and response control for tall buildings, as well as for his commitment to education and professional service”.

ABSTRACT - Shaking table model test and analysis of a four-tower connected on the height of 230 meters with isolation system

A four-tower connected structure is located in the low seismic intensity but high temperature change area of Chongqing, China. The structure is composed of four towers with height 230 meters and a sky corridor on the top. In order to reduce the temperature induced stress and the seismic force in the structure, the sky corridor was connected to the four towers by an isolation system that composed of sliders and viscous dampers. In this presentation, the author will introduce the design concept of the complex structure, why it is connected with isolation system that composed of sliders and viscous dampers? how to do the model test with a scale of 1/25 on the isolation system? How to scale the isolation system? What is the seismic behavior of the structure like? What is the suggestions for the design? The shaking table model test with the scale of 1/25 on this structure was carried out in August 2015, and detailed numerical analysis was done at the same time. The test and analysis show that the structure performed well in seismic action and temperature change, and meets the requirements of design codes and the building functions. The design has been completed since 2015, and now the building is under construction.