Application study on the first cable-stayed bridge with CFRP cables in China  

作　　者：Kuihua Mei Yajuan Li Zhitao Lu 

机构地区：[1]School of Highway, Chang'an University [2]CCCC First Highway Consultants Co., Ltd. [3]School of Civil Engineering, Southeast University [4]Chinese Academy of Engineering

出　　处：《Journal of Traffic and Transportation Engineering(English Edition)》2015年第4期242-248,共7页交通运输工程学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.50908016);Beijing Texida Technology Co.,Ltd.

摘　　要：In order to push forvcard the development of CFRP cable-stayed bridge and accumulate experiences, the study on the application of the first cable-stayed bridge with CFRP cables in China was carried out. The design essentials of main components of the bridge were introduced and its integral performances, including static properties, dynamic properties and seismic response were analyzed using finite element method. A new bond-type anchorage was developed and the processes of fabricating and installing CFRP cables were elaborated. Based on the results of construction simulation, a tension scheme for bridge was propound. During constructing, the stresses and displacement of girder and pylon, as well as the forces and stresses of cables, were tested. The results indicate that all sections of the bridge could meet the requirements of the ultimate bearing capacity and normal service; the performance of the anchorage is good and the stresses in each cable system are similar; the tested values accord well with the calculated values. Further, creep deforma- tion of the resin in anchorages under service load is not obvious. All these results demonstrate that the first application of CFRP cables in the cable-stayed bridge in China is successful.In order to push forvcard the development of CFRP cable-stayed bridge and accumulate experiences, the study on the application of the first cable-stayed bridge with CFRP cables in China was carried out. The design essentials of main components of the bridge were introduced and its integral performances, including static properties, dynamic properties and seismic response were analyzed using finite element method. A new bond-type anchorage was developed and the processes of fabricating and installing CFRP cables were elaborated. Based on the results of construction simulation, a tension scheme for bridge was propound. During constructing, the stresses and displacement of girder and pylon, as well as the forces and stresses of cables, were tested. The results indicate that all sections of the bridge could meet the requirements of the ultimate bearing capacity and normal service; the performance of the anchorage is good and the stresses in each cable system are similar; the tested values accord well with the calculated values. Further, creep deforma- tion of the resin in anchorages under service load is not obvious. All these results demonstrate that the first application of CFRP cables in the cable-stayed bridge in China is successful.

关 键 词：Cable-stayed bridgeFinite element methodCFRP cableBond-type anchorage 

分 类 号：U444[建筑科学—桥梁与隧道工程] U448.27[交通运输工程—道路与铁道工程]