A simplified spatial method to calculate the prestressing loss caused by batched tension process 分批张拉预应力损失的空间简化计算方法
Experimental study on prestressing loss during stretching period of post - tensioned and unbonded concrete beams reinforced with cfrp bars 预应力碳纤维筋混凝土梁张拉损失的试验研究
We designed five walls for simulate both sides of the top floor . proceeded to add unilateral horizontal static loading experiment to 4 pieces of prestressed small - sized concrete hollow block masonry models and 1 piece of normal concrete hollow block masonry model . crack - resistance behaviors were analyzed , and we have proceeded prestressing loss survey for 25 days , and discussed the reasons of prestressing loss 模拟房屋顶层两端单元设计试验模型,进行了4片预应力砌块砌体墙和1片对比普通墙体水平单调静力加载试验,并且进行了25天的预应力损失观测,探讨了预应力损失和加载过程中预应力筋应力的变化等问题,分析了预应力砌体的抗裂性能。
In the last part , we researched the bending strength of post - tensioned and cohesionless cfrp tendon concrete beams . in this part we summarized the performance of bearing , deflection and crack of the beams . at the same time , we introduced the research about the anchorage device and the prestressing loss 另外,在试验分析的基础上,我们运用有限元分析软件ansys对碳纤维塑料筋普通混凝土梁在三分点竖向荷载作用下的受力状况进行了模拟,得出了详细的计算结果。