沙菲克·安努尔,扎希德·阿卜杜拉

本文介绍了由纤维增强混凝土（FRC）制成的后张（PT）梁端部区域的性能结果。本文使用FRC的主要目的是提高后张梁端区的延展性和后开裂行为。当PT梁承受动态载荷时，需要更强韧的端区。后张（PT）梁通常用于建造桥梁和工业建筑，这些建筑通常会承受振动和循环载荷。PT梁末端区域（EZ）的过早开裂被认为是可能导致结构倒塌的问题类型。在该研究计划中，聚乙烯醇（PVA）和镀铜钢（CCS）纤维被用于混凝土中，以提高PT梁的EZ性能。FRC的使用使PT梁端区内的抗剪钢筋减少了50%，这也避免了端区钢筋的拥堵。因此，混凝土浇筑均匀，梁的表面光滑。FRC在全预应力传递过程中控制了端区的爆裂，本文观察到端区的应变能增加了大约25%，这也被发现在沿梁的长度方向有效减少应变。

端区；纤维增强混凝土；聚乙烯醇纤维；后张

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