混凝土转换桁架斜腹杆偏位后受力性能分析
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(1 湖南省建筑设计院,长沙410011; 2 湖南大学土木工程学院,长沙 410082)[摘要]通过对一高层建筑的桁架式转换层的斜腹杆偏位后桁架的内力和应力进行分析,得出斜腹杆偏位对该桁架受力的影响,并对结构提出了加固建议。加固后,该房屋投入使用,在使用的过程中对该房屋的转换桁架进行观测,其变形满足使用要求,没有出现裂缝。[关键词]桁架式转换层;斜腹杆偏位;应力;高层建筑;混凝土结构Study on performance of transfer truss after diagonals deviation in vierendeel truss type transfer storyLi Fengwu1, Fan Yunlei2, Wang Shigao1, Zou Yinsheng2, Chen Dachuan2(1Hunan Provincial Architectural Design Institute,Changsha 410011,China; 2College of Civil Eng.,Hunan Univ.,Changsha 410082,China)Abstract:Based on the analysis of internal force and stress of the truss after diagonals deviation in vierendeel truss type transfer story in a tall building, influence on the truss after diagonals deviation and suggestions of reinforcement are introduced. After reinforcement, this building is used in practice. Based on the observation on the transfer story in this building after usage, it is found that the transformation satisfies usage requirements and no crack occurs.Keywords: vierendeel truss; transfer story; diagonals deviation; stress; high-rise building; concrete structure作者简介:李凤武,硕士,工程师,FWLI@163.com。参考文献[1]GB50010—2002混凝土结构设计规范[S]. 北京:中国建筑工业出版社,2002.[2]张誉,赵鸣,方健,等. 空腹桁架式结构转换层的试验研究[J].建筑结构学报,1999,20(6).[3]CESC25:90混凝土结构加固技术规范[S].北京:中国建筑工业出版社,1991.[4]JGJ3—2002高层建筑混凝土结构技术规程[S]. 北京:中国建筑工业出版社,2002.[5]尚守平,蒋隆敏,张毛心,等. 钢筋网高性能复合砂浆加固钢筋混凝土方柱抗震性能的研究[J]. 建筑结构学报,2006,27(4).[6]尚守平,龙凌霄,曾令宏. 销钉在钢筋网水泥复合砂浆加固混凝土构件中的性能研究[J].建筑结构,2006,36(3).