【作者】 晋哲锋；

【导师】 柳炳康；

【作者基本信息】 合肥工业大学 ， 结构工程， 2004， 硕士

【摘要】 预压装配式预应力混凝土框架是采用工厂化生产的预制柱和预制预应力梁，运至现场直接吊装，梁柱就位后，将后张预应力筋穿过梁柱预留孔道，对节点实施预应力张拉预压。后张预应力筋既可作为施工阶段拼装手段，又可在使用阶段承受梁端弯矩，构成整体受力节点和连续受力框架，克服了装配式节点受力可靠性差的缺陷，解决了预应力混凝土框架难以装配的问题，形成预制预应力混凝土装配整体式框架，开辟了预应力结构工业化生产的新途径。 本文通过两榀预压装配式梁柱组合体在低周反复荷载下的试验，了解了预压装配式框架梁端截面应变分布、破坏机理和极限承载能力；探讨了全预应力配筋截面延性特征、滞回性能、耗能能力和变形恢复能力。更多还原

【Abstract】 Subassemblage and Prestressed concrete frames are assembled by precast prestressed beams and columns with tendons in the joints of the frames.These beams and columns are hoisted in site and the tendons are passed through the moire pipes.So prestressing force are brought to the joints of the frame.These tendons also can assume the moments at the end of the beams in ordinary condition. By way of these tendons,precest beams and columns can be assembled conveniently,and the joints and frame are monolithic and continuous.Consequently,compared with common reinforced concrete frams,this kind of frame systems possess higher reliability and solved the problems in the process of assembling Prestressed Concrete frames.Also it forms the framework of Subassemblage and Prestressed Concrete Frames,and explores a new way for industrial production of prestressed structures.Tow speciments of prestressed fabricated beam-column subassembly were tested under reversed cyclic loading. Experimental studies were carried out to investigate the strain distribution, failure mechanism and load-bearing capacity on the beam-column connections, as well as ductility, hysteresis curves energy dissipation, displacement restoring capacity of full PC speciments.更多还原