湖南国贸中心无粘结预应力混凝土楼板结构模型试验与现场荷载试验

湖南国贸中心主楼标准层采用层粘结预应力混凝土楼板，为了解预应力筋－锚具组装件的受力性能，进行了硬度检验、静载试验、疲劳试验；为检验实际结构受力特点，还对楼面板带进行了模型试验，试验结果均优于设计计算值，经现场荷载试验，楼板未裂缝，各测点工较小。

MODEL TEST AND FIELD LOADING TEST OF THE WITHOUT BOND PRESTRESSED CONCRETE FLOOR SYSTEM OF HUNAN INTERNATIONAL TRADE CENTRE PROJECT

The construction of a main building' s floor system of standard storey of the Hunan International Trade Centre has been adopted with the prestressed concrete without bond.In order to investigate and ascertain bearing capacities of prestressing cable and their anchorages,there are hardness test,static loading test and fatigue test being carried out.In order to obtain the bearing characteristics of the practical structures,another model test has been carried out.All results of testing have been proved better than the designed value.The field loading test has been proved that cracks at every floor slab are negligible and deflections at every testing points are small.