【作者】 郭快乐；

【导师】 柳炳康；

【作者基本信息】 合肥工业大学 ， 结构工程， 2008， 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。本文通过对一榀预压装配式预应力混凝土框架在低周反复荷载作用下的试验,深入研究了预压装配式预应力混凝土框架的裂缝分布、破坏形态、滞回曲线、骨架曲线、延性等抗震性能,并通过非线性有限元分析方法模拟了框架的受力情况。本文研究表明,预压装配式预应力混凝土框架具有良好抗震性能。更多还原

【Abstract】 Subassemblage and Prestressed concrete frames are assembled by precast prestessed 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 beam in ordinary condition. By way of these tendons, precest beam and columns can be assembled conveniently, and the joints and frame are monolithic and continuous. Consequently, this kind of frame systems possess higher reliability and solved the problems in the precess of assembling Concrete frames.The paper based on experiment of one Subassemblage and Prestressed concrete frames under low reversed cyclic loading, crack distribution, failure pattern, hysteresis curve, skeleton curve and ductility are studied systematically, and through non-linear finite element analysis method to simulate the situation of the framework. And studies show that Subassemblage and Prestressed concrete frame has better seismic performance.更多还原