作者单位: | China IPPR International Engineering Corporation, Beijing 100089, P. R. China;College of Civil Engineering, Chongqing University, Chongqing 400045, P. R. China;College of Civil Engineering, Chongqing University, Chongqing 400045, P. R. China;College of Civil Engineering, Chongqing University, Chongqing 400045, P. R. China;College of Civil Engineering, Chongqing University, Chongqing 400045, P. R. China |