DYNAMIC RESPONSE OF SLOPE SUPPORTED BY FRAME STRUCTURE WITH PRE-STRESSED ANCHOR RODS UNDER EARTHQUAKE
Frame structure with pre-stressed anchor rods has been widely applied for treatment on slopes of railway and highway since it can sufficiently adjust and improve soil strength and stability. Using the software ADINA,a 3-D nonlinear Finite Element model was proposed to analyze dynamic response of slope supported by frame structure with pre-stressed anchor rods with respect to interaction and coordinating work between soil and supporting structure. The calculating results indicated that axial force of the anchor rods,horizontal displacement of slope surface,acceleration and earth pressure as well as internal force of frame would increase obviously during earthquake; the peak axial forces might occur the most dangerous slip plane of slope; peak horizontal displacements and accelerations would appear at the top of slope; the maximal earth pressure and frame internal force would exist in the middle-bottom of slope; anchor action between soil mass and anchor rods would grow greatly with the increasing earth pressures. Frame structure with prestressed anchor rods is of advantage to resisting seismic force.
Earthquake Dynamic response Frame structure with pre-stressed anchor rods ADINA
Ping Li Jiang-Wei Kong Hui-Shan Li Xiu-Li Wang
College of Civil Engineering,Lanzhou Univ. of Tech.,Lanzhou 730050,P.R. China
国际会议
The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)
广州
英文
1883-1888
2010-12-01（万方平台首次上网日期，不代表论文的发表时间）