作　　者： ; (李勇）; (刘志东）;

机构地区： 北京首都工程建筑设计有限公司北京100035

出　　处： 《土木工程学报》 2008年第3期75-78,共4页

摘　　要： 针对在北京当代MOMA工程中广泛应用的带斜撑整体转换桁架结构体系的理论分析与计算研究,从结构受力分析及变形等方面总结转换桁架与普通转换梁之间的差异;通过对带斜撑与不带斜撑整体转换桁架的计算比较,分析设置斜撑对改善整体转换桁架受力性能的作用;结合工程实际给出避免地震作用下斜撑失效后结构发生连续倒塌的补充设计方法;并指出型钢混凝土材料在此类结构中应用的优势。通过工程设计实践探讨此类结构的实用设计方法,总结了设计中应注意的关键问题及应采取的主要结构构造措施。 Analysis and design method for transfer truss with diagonal brace that was widely used in Beijing MOMA was studied.The differences between transfer truss and transfer beam were compared in terms of structural mechanics and deformation.Results show that performance of transfer truss is improved due to the diagonal brace.Mechanism of the diagonal brace was discussed with regard to the improvement of transfer truss.The advantages of steel reinforced concrete composite structures that were used in transfer truss with diagonal brace for Beijing MOMA were also pointed out.In order to guarantee the safety of building after failure of the diagonal brace in earthquakes,additional design methodology for successive collapse of the building was presented.Key issues and measures that should be adopted in designing similar structures were summarized.

关 键 词： 转换结构 转换桁架 转换梁 斜撑 型钢混凝土结构

领　　域： [建筑科学]