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Experimental Investigation of System-Identification-Based Damage Assessment on Structures
Publisher: American Society of Civil Engineers
Abstract: Damage assessment algorithms based on the system identification (SI) method are examined through laboratory experiments. The SI method considered herein identifies structural parameters in a finite-element model by minimizing ...
Stability of Shear Deformable Thin-Walled Space Frames and Circular Arches
Publisher: American Society of Civil Engineers
Abstract: A consistent finite-element formulation is presented in order to analyze the spatial stability of shear deformable thin-walled space frames and circular arches. The displacement field of unsymmetric thin-walled cross ...
Spatial Postbuckling Analysis of Nonsymmetric Thin-Walled Frames. I: Theoretical Considerations Based on Semitangential Property
Publisher: American Society of Civil Engineers
Abstract: To present the spatial postbuckling analysis procedures of shear deformable thin-walled space frames with nonsymmetric cross sections, theoretical considerations based on the semitangential rotation and the semitangential ...
Statistical Damage Assessment of Framed Structures from Static Responses
Publisher: American Society of Civil Engineers
Abstract: This paper presents a damage assessment algorithm for framed structures based on a system identification scheme with a regularization technique. The regularization technique is introduced to alleviate the ill-posedness of ...
Spatial Postbuckling Analysis of Nonsymmetric Thin-Walled Frames. II: Geometrically Nonlinear FE Procedures
Publisher: American Society of Civil Engineers
Abstract: In a companion paper, transformation rules of Rodriguez' finite rotations and semitangential rotations are derived, respectively, and their rotational properties are discussed. The shear deformable displacement field of ...
Geometrically Nonlinear Buffeting Response of a Cable-Stayed Bridge
Publisher: American Society of Civil Engineers
Abstract: A geometrically nonlinear buffeting analysis of a cable-stayed bridge in the time domain is described. The bridge structure is modeled with three-dimensional thin-walled beam elements and three-dimensional elastic catenary ...
Three-Dimensional Elastic Catenary Cable Element Considering Sliding Effect
Publisher: American Society of Civil Engineers
Abstract: The nonlinear behavior of cable-supported bridges is governed by the geometric nonlinearity of cables, which is attributable to sag and sliding effects at the saddle. In a cable-stayed bridge with a midspan saddle, and in ...