Research For Numerical Simulation Analytical Approach Of Pressure Concentrated-type Cable Under Earthquake

As a kind of in-situ reinforcement method, the prestressed anchor cable has been widely used at mountainous area in the construction of highway in our country, however, the theory of prestressed anchor internal force research under earthquake loads could not keep the pace of the development of engineering practical. This text has introduced domestic international state of development and type of prestressed anchor cable at first, then it be chosen pressure concentrated—type cable for describing its function mechanism. After that, carried on the theoretical research to stress distribution of pressure concentrated—type cable under earthquake loads, Then the numerical simulation model of pressure concentrated—type cable is established according to the new method in FLAC-3D program, the simulation has been analyzed its internal force change under earthquake loads. It wellbe clear in stress distribution of anchorage segment of pressure concentratrated—type cable. Made analysis and appraise for applicability and dependability of pressure concentrated—type cable under earthquake loads according to the numerical simulation result. Finally, summarized destruction form that appearing perhaps and their influence factor under earthquake loads on the basis of relevant study and propose advise to improve seismic performance of pressure concentrated—type cable.