Based on the practical project the effect of the symmetrical secant method on the effective prestress of the pretensioned slab and the anchoring result of the prestress beam is determined.

• 结合实际工程测定对称割线法对先张板有效预应力及预应力筋锚固效果的影响,并与千斤顶放张法及理论计算的结果进行比较分析,验证了这一新工艺的可行性。