beam ends

• ( 4 ) the failure correlation of beam end and column end under " minor earthquake was analyzed by monte carlo simulation method . based on this , a reliability analysis method for reinforced concrete frames with good conceptual design under " minor earthquake " is presented
  （ 4 ）采用montecarlo模拟法，分析了按现行建筑抗震设计规范设计的钢筋混凝土框架结构在“小震”作用下，梁端和柱端控制截面的失效相关性，进而提出框架结构在“小震”作用下的可靠度分析方法。
• A calculation method on the energy dissipation of semi - rigid steel frame is presented and it is proved that many factors , such as beam end - fixity , viscous damping , fundamental frequency of steel frame and frequency of excitation , etc . have close relationship with the energy dissipation ability of semi - rigid steel frame
  5本文总结了半刚性连接框架二阶弹塑性分析方法和塑性铰分析方法，提出了半刚性连接框架耗能计算的公式。研究表明，半刚性框架耗能的大小与连接的嵌固程度、结构的阻尼、自振频率等均有很大的关系。
• Eventually , the rehabilitated specimens were retested under low cyclic loading . the loads and displacements of the beam end as well as the steel or plate strain were measured in detail ; and furthermore , crack patterns and failure model of the specimens were also observed during the test
  在对试验结果的整理分析后，本文对比研究了加固前后以及用不同加固方法加固的试件的开裂荷载、屈服荷载和极限承载力、梁端荷载?转角滞回曲线及其包络线特征、延性和耗能性能。
• 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 . by analyzing this system , a series of conclusion are provided , incluing modulation of bending moment produced by vertical loads within beam end , secondary internal forces produced by pretress force , shear resistance of the end of beams , the influence of lateral restrains . theresearch results of this paper are proved to be practical . some advices are also brought forward on the design process
  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。本文针对预压装配式预应力混凝土框架，从竖向荷载作用下的梁端弯矩调幅、施加预应力在框架中产生的次内力、梁端抗剪承载力、考虑侧限的无侧移框架的承载力分析四个方面对该种装配式结构体系的性能做了详细的研究。