无锡大剧院钢桁架组合梁屋面设计  

Design of Roof Truss with Composite Beam in Wuxi Theater

作　　者：马泽峰[1,2] 陆洲导[2] 蔡兹红[1] 施从伟[1] 刘宏欣[1] 

机构地区：[1]上海建筑设计研究院有限公司,上海200041 [2]同济大学土木工程学院,上海200092

出　　处：《结构工程师》2011年第3期13-18,共6页Structural Engineers

摘　　要：无锡大剧院屋面结构跨度大、荷载重且建筑外观限制多,在类似结构中具有代表性。通过方案模型对比、压弯组合构件承载力计算,SAP2000与ANSYS的有限元计算分析以及若干设计难点处理等详述了此类结构的设计思路和计算方法,并明确了以组合构件作为屋面桁架上弦的诸多优点:合理地利用了现浇屋面的面内刚度,有效改善了桁架的整体性,提高了上弦构件的承载能力。The roof of Wuxi theater with large span,heavy load and a lot of architectural constraints could be a representative of similar structures.Design ideas and computation methods were discussed with comparison of models,calculation of compression-bending capacity,treatment of difficulties in design and several key points.Advantages of steel truss with composite top beam were found.For example,plate stiff of post-cast slab was utilized reasonably,integrity of steel truss and capacity of top beam were improved greatly.

关 键 词：组合构件 阶段施工 压弯承载力 钢桁架 

分 类 号：TU398[建筑科学—结构工程]