A new method of improving the pressure bearing capacity of the thin wall - prestress

摘要

Through calculation of the finite element software, we can get the thin wall's stress state during normal working. To constrain the displacement and improve the crack resistance of the wall width direction by the two ways of bonded and non-bonded prestressed concrete application form. Explore the working state of the prestressed concrete in the two different ways, and to analyse the influence of the prestress method on the ultimate bearing capacity of the wall. The results showed that, the two kinds of prestress method can improve the stress state of concrete and improve its ultimate bearing capacity. Compared with the method of bonding, the crack resistance of confined concrete in the width direction can be improved by using the non-bonded form. Finally improve the ultimate bearing capacity of the thin wall largely.