Effects of semi-rigid behavior of connections in the reliability of steel frames

Review on the modelling of joint behaviour in steel frames

“…This model was used in several studies to investigate the effect of semi-rigid joints on steel frame structures: Picard et al [79]; Altman et al [80]; Goverdhan [55]; Kameshki and Saka [81]; Hadianfard and Razani, [82]; Hayalioglu and Degertekin [83]; Prabha et al [84].…”

Structural Analysis of an Articulated Urban Bus Chassis via FEM: a Methodology Applied to a Case Study

“…Overestimating the joint stiffness may result in underestimating the forces developed in beam and column and the overall displacement of the global frame structure. Neglecting the real behaviour of the joint may lead to unrealistic predictions of the response and reliability of steel frames [11]: both of these extreme assumptions are inaccurate and uneconomic. When approaching the problem by a numerical (FEM) standpoint the latter issues occur in formulating the contact parameters between two or more structural members.…”

Reliability based design optimization of semi-rigid steel frames

“…In the present research, the power model of Kishi et al [4] and Chen and Lui [7] is used for describing the The stiffness matrix of a beam with rotational springs at the ends is function of the i R and j R as given by Hadianfard and Razani [5]. For columns, the stiffness matrix takes the usual form.…”

“…The purpose of the reliability based design optimization (RBDO) is to produce reliable, and at the same token economical, structures. In the present study, by using a typical moment-rotation diagram, such as that described by Kishi et al [4] and Hadianfard and Razani [5], the more realistic semi-rigid behavior of beam-column connections is considered in the structural analysis and in the RBDO. External loading, the resistance capacities of members and connection properties are assumed to be independent basic random variables, with normal distribution.…”