Parameter Identification of Frame Structures by considering Shear Deformation

Abstract

This paper presents a method to identify the damages in frame structures with slender beams. This method adjusts the parameters of the structure to match the analytical and the measured displacements. The effect of transverse shear deformation on the nodal analytical displacement is analyzed, and the parameter identification of frame structures with slender beams is performed. The results demonstrate that parameter-identification accuracy can be considerably improved by considering the transverse shear deformation in the frame structure with slender beams. The proposed method can accurately identify the damages in frame structures with slender beams using displacement measurements.

Parameter Identification of Multispan Rigid Frames Using a Stiffness Separation Method

“…Subsequently, the objective function of Substructure 1 was established based on its measured displacements under 1, 2, 4, 5, 7, and 8 DOFs, as well as their corresponding analytical displacements. Similarly, the objective function of Substructure 2 was derived based on its measured displacements under 13,14,16,17,19, and 20 DOFs, In those four damage scenarios, Node 4 separates the entire rigid frame structure into two substructures, and the measured displacements are located at 10, 11, and 12 DOFs. Substructures 1 and 2 were extracted from the stiffness matrix of the overall structure.…”

“…Static and dynamic parameter identification methods are two distinct approaches used in the field [ 16 , 17 , 18 , 19 , 20 , 21 ]. Some researchers have made remarkable progress in the field of structural damage identification using static responses.…”

Experimental Investigation and Damage Identification of High-Pile Wharf Framed Bents under Horizontal Impact Loads

“…Based on the existing research, the damage to high-pile wharfs mainly comes from horizontal loads, vertical loads, and environmental loads. Among them, the horizontal impact load caused by ship berthing is an important parameter in the structural design of high-pile wharfs, which is also the main factor of affecting safety of wharf [ 1 , 2 , 3 , 4 , 5 ].…”

On the Use of the Effective Width for Simply Supported Generally Loaded Box-Girders

“…It is well-known that shear effects play an important role on the mechanical response of frames behaving as beam-like structures [1][2][3]. However, they also affect single thin-walled members, especially when the flanges are wide compared to the length of the member.…”