单孔预应力基本锚垫板设计方法探讨

Discussion on design for basis post-tensioned anchorage plate with single tendon

参考国内外设计与施工规范,通过算例对该锚垫板的端面尺寸、厚度以及附加螺旋筋的设计计算问题进行了分析,分析结果表明:在进行普通垫板验算时,除可按锚垫板刚性扩散角取为45°计算的局部受压承载力外,尚需验算混凝土反力作用下锚垫板的刚度和强度。

According to the design and construction codes of home and abroad,makes an analysis of the end size and thickness of the anchor plate and the calculation problems about the design of the additional spiral reinforcement through the calculation examples.The analysis results show that it can use the rigid diffusion angle of 45° to calculate the capacity of local compression,and it should be taken account for the stiffness and strength of anchorage plate to resist the reaction of concrete.