[提要]  针对实际工程中柱及连梁的抗侧刚度对梁预应力建立的影响，使用经典力学方法和有限元软件建立
了平面和空间模型，并对计算结果作出比较。提出了实际解决方法以及基于经典结构力学的一般计算公式。
[关键词]  预应力  有效预压力  抗侧刚度  有限元

Based on a practical project, the influence of the lateral rigidity on effective prestressing force is introduced, which is analyzed by methods of classical structural mechanics and finite element program. As a conclusion, the resolution for the project and calculation formula based on structural mechanics are put forward.
Keywords:  prestressing; effective prestressing force; lateral rigidity; finite element

    参  考  文  献
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2．ACI318-99．ACI318 Building Code and Commentary
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