Research On Deformation Behaviour Of Partially Prestressed Concrete & Analysis With Limited Elements

Partially prestressed concrete structure has been widely used in the field of civil engineering.The deformation is very important for prestressed concrete members,for they are thinner than those of reinforced concret owe to the adoption of hign-intension material and developed technic of design and construction.At present,there are some formulae for deformation in the criterion of many countries.Mostly there are 3 methods in use: double linearity method , method of valid inertia and Curvature integral calculus method.This article will discuss the influence of material, spa, Construction form,and adjust the formula for stiffness of GB50010-2002 to a new uniform formula for deformation. Lastly.for better explaining above discussion,the thesis applied the general finite elements analysis software of ANSYS7.0,which is used widely at home and abroad,to analyze two actual cases from the initial modeling to the final disposing.