脉动风作用下某采光顶大跨张弦梁结构施工过程分析

Construction Process Simulations of A Long-span Beam-string Structure of A Lighting-roof Under Fluctuating Wind

作为一种半刚性大跨空间结构,分析和总结了张弦梁结构的特点和常见施工方法。以实际工程的采光顶大跨张弦梁结构为研究背景,运用有限元软件开展了找形分析以及非线性静/动力分析,深入研究了脉动风作用下单榀张弦梁全施工过程中的结构受力状态。数值模拟结果分析了结构设计的合理性,确定了施工方案的有效性和安全性,为施工质量和安全的全过程监控提供参考和依据。

The present study analyses and summarizes the characteristics and common construction method of the beam-string structures,which belongs to one semi-rigid large-span spatial structure.Based on one long-span beam-string structure of one lighting-roof in the practical engineering,the form-finding,non-linear static/dynamic analyses are conducted to further investigate the load capacity of a single-frame beam-string structure on the whole construction process under the actions of the fluctuating wind.Numerical simulations validate the feasibility of structural design and the practicability and safety of construction scheme.The numerical methods and results are wished to provide the references for monitoring construction quality and safety.