摘要
在桥梁结构施工中,由于施工荷载以及连续梁的自重作用,使得连续梁的某些梁段脱离支座,发生内力重分布,危及结构安全。文章以连续梁的有限元方法为基础,提出了一种判断梁与支座脱离的方法,并给出了内力重分布的程序设计方法,可供实际工程中参考使用。
<Abstrcat>During the construction of bridge structures, some sections of the continuous beam may deviate from bearings as a result of dead weight of the continuous beam or loading of construction. The internal force of the continuous beam will redistribute and endangers the security of bridge structures. In this paper,a method of judging the deviation between beams and bearings is presented based on the finite element method and program design of redistribution of the internal force is described. An application example is also given. The presented method can be used in practical engineering projects.
出处
《合肥工业大学学报(自然科学版)》
CAS
CSCD
北大核心
2005年第6期661-664,共4页
Journal of Hefei University of Technology:Natural Science
关键词
连续梁
有限元法
支座反力
内力重分布
continuous beam
finite element method
support pressure
redistribution of internal force