摘要
地下车库框架结构柱网的大小跨布置、顶板较厚的覆土以及消防车荷载的不利布置会导致框梁的受扭特征不明确,通过有限元软件分析不同的板跨、板厚、梁截面、梁跨、节点刚度对应的框架结构模型中梁的受扭特征,对影响框梁扭矩的主要因素进行总结,提出了基于有限元计算结果的框梁扭矩的简化算法。对比简化算法与有限元计算结果,可以发现在一定的参数范围内,两者的吻合程度较好。
The torsion characteristics of frame beam of underground garage are uncertain due to the uneven arrangement of columns,the thick covering soil over top plate and the unfavorable distribution of fire truck load.By using the finite element software,the torsion characteristics of frame beam are analyzed with different span,thickness of concrete slab,different section sizes,span of beam and different stiffness of frame joint.The main factors affecting the torsion of frame beam are summarized.The simplified algorithm of the frame beam torsion moment based on the result of finite element analysis are proposed.It is found that the results of simplified algorithm and the finite element analysis are in good agreement with each other in the certain parameter values region.
作者
潘磊
邓春燕
王嘉伟
PAN Lei;DENG Chunyan;WANG Jiawei(Suzhou Power Design Institute Co.,Ltd.,Jiangsu Suzhou 215021,China;Tus-Design Group Co.,Ltd.,Jiangsu Suzhou 215021,China;Shanghai Municipal Engineering Design Institute Co.,Ltd.,Shanghai 200092,China)
出处
《低温建筑技术》
2020年第9期72-76,共5页
Low Temperature Architecture Technology
关键词
地下车库
框梁
受扭
消防荷载
underground garage
frame beam
torsion
fire truck load
