Inelastic Seismic Response of Composite Partially Restrained Moment Frames in Soft Soils

Abstract eng:
This paper examines in detail the seismic behavior of a type of semi-rigid composite connections best known in the international literature as Partially Restrained Composite Connections (PRCC). In addition, this paper described some efforts to promote the use of these connections for the design of low-rise buildings in Mexico City. Even when the C-PRMF system has been implemented in the codes and in real projects of the United States, the adaptation to Mexico City requires the evaluation of the local conditions such as the local seismicity, class sites, structural configurations, specifications and standards, among other variables. In order to meet this goal, analytical calibrations to experimental results of PRCC connections tested in the laboratory were performed. Thus, the influence of PRCC connections on the behavior of moment frames under local seismic loads through nonlinear static and dynamic analysis is studied. Nonlinear analysis results point out that PRCC connections are potentially applicable to low-rise special moment frames located at both hard and intermediate class sites in Mexico City.

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