迭层空腹桁架转换层结构的静力性能分析

迭层空腹桁架是一种新型的转换层结构型式 .本文分析了弦杆截面尺寸、腹杆布置对结构受力性能的影响 ,从而给出了其设计建议 .

迭层空腹桁架转换层结构拟动力地震反应试验研究

结合一实际工程进行了预应力部分型钢混凝土迭层空腹桁架转换层结构的拟动力地震反应试验研究 ,并对其进行了弹塑性动力分析 ,与实测曲线作了比较 ,二者符合良好。

Application of laminated vierendeel truss in high-position transfer story structure

To meet the demands for large space and flexible compartmentation ofbuildings, laminated vierendeel trasses are adopted in high-position transfer story structures.First the bearing characteristics are analyzed, in which reasonable stiffness ratio of the upperchord, middle chord, and lower chord is derived. Then combined with an actual engineering model (1:8similar ratio), the static loading and pseudo-dynamic tests of two models for laminated vierendeeltrass used in transfer story structures are conducted, in which one model adopts reinforcedconcrete, and the other adopts prestressed concrete and shape steel concrete. Seismic behaviors areanalyzed, including inter-story displacement, base shear-displacement skeleton curves, andequivalent viscosity-damping curves. A program is programmed to carry out the elasto-plastic dynamicanalysis, and displacement time-history curves of the two models are derived. The test and analysisresults show that the laminated vierendeel trass with prestressed concrete and shape steel concretehas excellent seismic behaviors. It can solve the disadvantages of laminated vierendeel trussesused in transfer story structures. Finally, some design suggestions are put forward, which can bereferenced by similar engineering.

某集团管理中心办公楼结构设计

某集团管理中心办公楼,主体结构采用钢框架-中心支撑体系,平面与竖向不规则,采用了迭层混合空腹桁架、越层支撑、转换桁架等,结构较为复杂。从结构布置、结构分析、特殊构件与节点设计等方面对其结构设计要点进行阐述,可供类似工程借鉴。