Oral Presentation

Volume Title: ICCE2021 Vol. 2

¹Hazem Omar Nady ; ²Mohamed A Abdel-Basset Abdo; ³Fayez Kaiser

¹Department of Civil Engineering , Faculty of Engineering, Assuit University, Egypt

²Derpartment of Civil Engineering, Faculty of Engineering, Assuit University, Egypt

³Department of Civil Engineering, Faculty of Engineering, Assuit University, Egypt

Structural damage identification has recently become one of the most important topics for engineering structures due to its benefits in enhancing safety, reducing life-cycle cost and providing guidance for system construction and maintenance. This research studies the accuracy of using displacement influence lines (DIL) and their derivatives (slope and curvature) for structural damage characteristics (location and severity). The method is based on static structure response which can be measured using single or multi sensors. The study includes an analytical investigation of damage detection of single and multiple damages in simply supported beam. Then, numerical studies have been conducted to investigate the effectiveness of the proposed method in different scenarios for simply supported beam (determinate structure), continuous beam (indeterminate structure) and arch beam with different damage characteristics. The measuring point position and noise intensity effects are discussed in this paper. The advantages and disadvantages of using displacement influence lines in structural damage detection are also discussed.

Damage detection; displacement influence line; slope influence line; curvature influence line