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针对半刚性组合框架提出一种新的设计和施工体系,主要采用Perfobond剪力连接和考虑T形肋连接构件的共同作用。试验表明,这种连接的结构性能可以满足作者在前面研究工作中提出的结构设计模型(Ferreira LTS,de Andrade SAL,da SVellasco PCG,用于半刚性螺栓连接的设计模型,Stability and ductility of steel structures,Elsevier;1998;Ferreira LTS,de Andrade SAL,da S Vellasco PCG.边柱和角柱中的半刚性组合连接,Eurosteel,2nd European conference on steel structures,1999)。基于这些结论,针对简支受力的半刚性组合螺栓连接提出两种设计模型。通过对比分析试验结果的弯矩-转角曲线、初始刚度和转动能力,归纳模型的性能(da S Vellasco PCG,de Andrade SAL,Ferreira LTS,deLima LRO.带Perfobond和T形肋连接的半刚性组合结构,第一部分:全尺寸试验.Journal of Constructional Steel Research 2005)。最后基于连接和组合截面的几个关键点处的试验压应变数值,对试验中的组合框架和设计模型所受到的实际压力进行评测。
A new design and construction system for semi-rigid composite frame is proposed, which mainly uses the Perfobond shear connection and the T-rib connection. Experiments show that the structural performance of this kind of connection can meet the structural design model proposed by the author in the previous research work (Ferreira LTS, de Andrade SAL, da SVellasco PCG, Design model for semi-rigid bolting, Stability and ductility of steel structures , Elsevier; 1998; Ferreira LTS, de Andrade SAL, da S Vellasco PCG. Semi-rigid combined connection in side columns and corner posts, Eurosteel, 2nd European conference on steel structures, 1999). Based on these conclusions, two design models are proposed for semi-rigid bolted connections with simple supported forces. The performance of the model is summarized by comparison of the bending moment-rotation curve, initial stiffness and rotational ability of the test results (da S Vellasco PCG, de Andrade SAL, Ferreira LTS, deLima LRO. Semi-rigid composite structures with Perfobond and T- , Part 1: Full-Scale Tests. Journal of Constructional Steel Research 2005). Finally, based on the experimental values of compressive strain at several key points of the joint and the combined section, the actual stress on the combined frame and design model in the experiment was evaluated.