PROGRESS ON FIRE RESISTANCE OF PRESTRESSED CONCRETE STRUCTURES
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摘要: 对预应力混凝土结构抗火性能的国内外最新研究进展进行较系统的综述与分析:研究预应力高强钢丝、钢绞线和新型纤维增强塑料(FRP)筋在高温下以及高温后的受力性能,总结相应的计算模型;探讨预应力混凝土梁和预应力混凝土板的抗火性能,并重点分析预应力混凝土框架在火灾作用下的受力特性;最后,对今后预应力混凝土结构抗火性能研究的发展趋势作了展望。Abstract: State-of-the-art of studies on fire resistance of prestressed concrete structures at home and abroad is summarized and analyzed systematically.The fire resistance of high-strength wires,strands and new type fiber reinforced plastic(FRP) tendons under and after high temperature are studied and the corresponding analytical models are presented.The fire resistance of prestressed concrete beams and slabs as well as prestressed concrete frame is investigated.At last,the future research directions upon the fire resistance of prestressed concrete structures are discussed.
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