某体育场环形超长结构温度应力分析

Temperature Stress Analysis of a Super-Long Annular Structure in a Stadium

温度应力是钢筋混凝土超长结构设计需要解决的主要问题。不同于常规矩形超长结构,环形超长结构的温度应力分布受到曲率半径的影响,温度应力的分布更为复杂。应用有限元计算软件AN-SYS对某体育场环形超长结构温度应力进行分析,探讨了环形超长结构温度应力的特点,验证了施加预应力以及采取合理施工方法等可以有效抑制温度裂缝的发展。

Temperature stress is the key problem requiring to be solved in designing superlong structures.Temperature stress in an annular super-long structure which is influenced by curvature radius is different from that in regular rectangular structures.The distribution of temperature stress is very complicated.By analyzing super-long annular structures by finite element computing software ANSYS,the characteristics of temperature stress of annular super-long structures is studied.It is validated that by prestressing and applying appropriate construction methods the development of temperature crack can be controlled effectively.