仅内侧梯梁单边传力旋转钢梯的设计与分析  

Design and analysis of steel spiral stairs that transmit force through the inner beam

作　　者：何卓艺 He Zhuoyi(Jiantong Design Co.,Ltd.,Guangzhou Guangdong 510010,China)

机构地区：[1]建同设计有限公司,广东广州510010

出　　处：《山西建筑》2024年第23期88-90,共3页Shanxi Architecture

摘　　要：仅内侧梯梁单边传力旋转钢梯在工程上较少采用,为合理选择其内侧梯梁的截面形式,对其进行内力、等效应力、竖向变形、舒适度的分析,考察内侧梯梁的不同截面形式对上述指标的影响。结果表明,内侧梯梁为圆钢管时的等效应力、竖向变形最小,自振频率最大,而内侧梯梁的截面形式对竖向峰值加速度影响不大,所以仅内侧梯梁单边传力旋转钢梯选用圆钢管较为合理。并且文章中提供了一种钢梁在耦合较大扭矩及剪力时的承载力验算方法,为其他类似工程提供参考。The spiral stairs transmitting force by the inner steel beam is rarely used in engineering.Analyze the internal forces,equivalent stress,vertical deformation and comfort of this spiral stairs.Study the influence of the inner beam with different cross-sectional forms on the above indicators in order to select the cross-sectional form reasonably.The results indicate that the circular pipe beam is more reasonable to be used for the inner beam because of the least equivalent stress,the least vertical deformation and the biggest natural frequency.In addition,this paper provides a method for calculating the bearing capacity of steel beams with significant torque and shear force.This method can be referred for other similar projects.

关 键 词：旋转钢梯 复杂内力 强度验算 舒适度 

分 类 号：TU392[建筑科学—结构工程]