【摘要】 销接钢结构广泛应用于结构工程中。销孔间隙会使体系产生初始几何位移,并对结构的承载力产生 不容忽视的影响。本文提出折减刚度的概念,对六四式铁路军用梁标准三角拼组简支梁考虑初始几何位移的 稳定进行了分析,给出了该结构考虑稳定时的临界跨度。更多还原

【Abstract】 As a kind of pre-cast structure, the pin-connected steel structure is widely used in structural engineering. However, owing to the interstice between the pin and the pinhole, which may result in the initial geometrical displacement of the system, the bearing capacity of the structure tends to be reduced. This paper, in the light of the concept of reduced rigidity, analyses the stability of the initial geometrical displacement of the simple-supported beams assembled with 64-type military beams, and suggests the critical length of span, which has to be taken account of when we consider the stability of the structure.更多还原