摘要
对气枕式ETFE膜结构的受力性能进行了研究,分析了均布荷载作用下ETFE膜结构气枕的膜面位移和内力随荷载变化的规律,分别考察了气枕的初始内压、高跨比、薄膜厚度等参数对气枕位移、膜面应力的影响,给出了其参数变化影响规律.此外,对ETFE气枕的边缘构件进行了受力分析,分别给出了初始形态下和受荷状态下边缘构件的受力特点.通过分析,给出了设计建议.
This paper presents a static analysis of ETFE cushions in membrane structures. Surface displacements and internal forces of ETFE cushions under uniformly distributed loads are investigated. Influences of initial air pressure, height to span ratio, and thickness of membrane are studied. Variations of displacements and stresses of membrane cushions with these parameters are obtained. In addition, analyses are performed to the brim elements of the ETFE cushions. Characteristics of force distributions along the brim elements are revealed, from which advices for the design are given.
出处
《空间结构》
CSCD
北大核心
2007年第1期45-51,共7页
Spatial Structures
