【摘要】 预应力高耸塔筒结构的受力特性不同于普通小型构件。为了确定其正常使用极限状态下截面刚度的计算公式 ,本文通过一个预应力电视塔的例子 ,用几个不同的预应力刚度公式的计算结果进行比较和分析 ,从而得到预应力高耸结构塔筒截面正常使用极限状态下的刚度降低系数。更多还原

【Abstract】 The mechanical properties of prestressed highrise tower-silo structures are different from those of normal small structures.In order to acquire the equation of section stiffness in serviceability limit states,this paper are carried out comparision and analysis about the results from several stiffness equations of prestressed concrete structures.In the end of this paper the stiffness decrease coefficient of prestressed highrise tower-silo structures in serviceability limit states is given.更多还原