线刚度比对超静定刚架内力的影响  

The Influence of Line Stiffness Ratio on the Internal Force of the Indeterminate Frame

作　　者：王广利[1] 

机构地区：[1]黎明职业大学土木建筑工程学院,福建泉州362000

出　　处：《黎明职业大学学报》2017年第4期84-88,共5页Journal of LiMing Vocational University

基　　金：福建省中青年教师教育科研项目(JAS14854);黎明职业大学规划项目(LJ201419)

摘　　要：以单层单跨超静定刚架为分析模型,忽略轴向和剪切变形,采用结构力学求解器系统探讨竖向及水平荷载作用下梁柱线刚度比对超静定刚架内力的影响规律。分析表明,在超静定刚架结构中,梁柱线刚度比体现的是梁柱端相互转动约束的强弱,而梁柱端相互转动约束的强弱决定超静定刚架梁柱内力的分布。在框架结构设计中,可通过调整梁柱线刚度比,改善框架内力的分布,达到优化结构的目的。Taking the single story and single span indeterminate frame as analysis mode and the equation solver of structural mechanics as analysis software without considering the axial deformation and shear deformation,the thesis analyzes the influence law of stiffness ratio of beam to column on structural internal force of the statically indeterminate truss under vertical level. The analysis indicates that the influence of line stiffness ratio of beam to column reflects the strength of the beam and column end rotation,and it decides on the Internal force of the Indeterminate frame. In the design of the frame structure,the distribution of the internal force of the frame can be improved by adjusting the influence of line stiffness ratio of the beam to column,so as to achieve the purpose of optimizing the structure.

关 键 词：超静定刚架 线刚度比 内力 荷载 约束 

分 类 号：TU312[建筑科学—结构工程]