A STUDY ON PANEL POINT OF A PC BRIDGE WITH STEEL TRUSS WEBS

Aim for the paper is to propose a rational panel point structure of PC bridge with steel truss webs. First, connection details of compressive steel diagonal to panel point concrete are examined, in which 4 types of connecion models are comparably studied through both model tests and FEM analysis. Second, a panel point model crossing compressive and tensile diagonal is examined by fatigue test, loading capacity test and FEM analysis. Special attenstion is paid on cracking mechanism of panel point concrete and ultimate loading capacity. Last, from both the experimental and numerical results obtained, discussion is made to find rational panel point details from the aspects of serviceability and ultimate limit states.