(温州市建筑设计研究院  325000)
【提要】  预应力混凝土管桩的原位测试采用带闭口桩尖的管桩，将其打到设计标高，在管腔内放置两根通长钢筋，并在各土层层面部位将钢筋应力计与通长钢筋焊接或绑扎，然后浇注高强度混凝土，待混凝土达到设计强度后进行加载测试。方法施工方便、操作简单、应力计成活率高，测读数据稳定，计算简便。
【关键词】 预应力混凝土管桩  原位测试  钢筋应力计
Test and Calculating Method of Original Position of Prestressed Concrete Piping Pile/He Gejun, Zou Zongxuan (Wenzhou Architectural Design and Research Institute, Wenzhou 325000, China)
Abstract:The test method of original position of prestressed concrete piping pile  is to strike a sealed pinnacle piping pileto the designed level,then put two common long steel into piping cavity,and weld or bind up steel stress meters and the common long steel at stratigraphic layer,finally pour highstrength concrete into it. Conduct load augmenting test after the concrete reached to designed strength. This method is convenient to carry out in construction and simple to perform. The stress meter has high survival rate. The measured data are stable and the calculation is concise and explicit.
Keywords:prestressed concrete piping pile; original position test ; steel stress meter