环形预应力束的有效预应力分布及回缩量计算

Calculation of the Distribution of Effective Prestressing Force and the Set-back Amount of a Loop Prestressed Cable

对环形预应力束的有效预应力及回缩量计算公式进行了推导 ,并将其用于哈尔滨松花江公路大桥索塔锚固区预应力有效预应力分布及回缩量计算中。

Formulas for calculating the distribution of effective prestressing force and the set_back amount of loop prestressed cable in the anchorage region on the pylon of the Harbin Songhua River Highway Bridge are derived. The results of experiemental calculations show that the formula can accurately give the distribution of effective prestressing force of a loop prestressed cable.