单层异型钢结构大型雨篷在风荷载作用下的性能及结构布置

摘要

For an abnormity large canopy in the coastal areas, its characteristics against different wind loads are investigated. The main factors that affect the structural rigidity of canopy are analyzed- The influences of supporting type and position, and the way of component connections are all taken into account during the analyses. Research reveals that wind loads are the key factor for structure design, while the permanent loads, earthquake and temperature stress have little influence on it. Based on these research results, some effective constructing measures are proposed to realize economic optimal design.%针对沿海地区某异形钢结构大型雨篷单层网格结构,分析了雨篷在不同荷载作用下的静力和动力性能及雨篷在各方向风荷载作用下的性能,包括雨篷刚度的影响因素、不同形式的支承、布置在不同位置的支承对刚度的影响,及不同连接方式对雨篷刚度产生的变化研究表明:风荷载是该雨篷设计的控制因素,而恒荷载、地震作用和温度对雨篷性能的影响不大,并提出了为获得经济合理方案应采取的有效构造措施.