论文部分内容阅读
介绍了 4榀 8m× 6m大跨度次梁楼盖的大比例模型试验 ,主要研究预应力次梁在有无现浇板的情况下在边主梁中引起的约束扭矩以及该约束扭矩与荷载的比例在各受力阶段随次梁抗弯刚度和主梁抗扭刚度的改变而不断变化的规律 ,所得结果对国家设计标准修订和工程设计有重要参考价值
The large-scale model test of 4 × 8m × 6m long-span secondary girder floor cover is introduced. The main research is about the restraining torque caused by the prestressed secondary girder in the side girder with or without cast-in-place slab and the relationship between the restraining torque and the load The ratio of beam bending stiffness and the torsional stiffness of the main girder under various stress phases are constantly changing. The results have important reference value for the revision of national design standards and engineering design