مرکز منطقه ای اطلاع رساني علوم و فناوري -

چكيده لاتين :

This paper presents an investigation into the development of stresses in anchorage zone in prestressed post-tensioned concrete beam using the finite element analysis. A finite element computer code on the platform, of a supercomputer PARAM 10000 is developed and employed for the present study. A parallel algorithm for matrix inversion method is developed and implemented in the presented finite element code. Concentric and eccentric prestressing forces are applied for prestressing of the beams. Effect of Poissonיs ratio over the bursting tensile force developed in the anchorage zone is studied and an equation to compute the magnitude of bursting tensile force by incorporating the effect of Poissonיs ratio is proposed. Development of spalling zone is also investigated and it was found that due to eccentric loading, stresses of higher magnitude were de\reloped in this zone. Supercomputer PARAM 10000 is used to carry out present analysis and time reduction has been achieved by using multiple processors of the supercomputer PARAM 10000. At the end the performance of the,developed parallel code is studied and presented.